WorldWideScience

Sample records for manufacturing studies board

  1. Do wood-based panels made with agro-industrial residues provide environmentally benign alternatives? An LCA case study of sugarcane bagasse addition to particle board manufacturing

    DEFF Research Database (Denmark)

    Silva, Diogo Aparecido Lopes; Lahr, Francisco Antonio Rocco; Pavan, Ana Laura Raymundo

    2014-01-01

    environmental impacts? Could it substitute wood as raw material? Accordingly, this paper presents a life cycle assessment (LCA) study of particle board manufactured with sugarcane bagasse residues.The cradle-to-gate assessment of 1 m3 of particle board made with sugarcane bagasse (PSB) considered three main...... subsystem was 9.08 % (economic base). The potential environmental impact phase was assessed by applying the CML and USEtox methods. PSB was compared with the conventional particle board manufactured in Brazil by the categories of the CML and USETox, and including land use indicators. Finally, two scenarios......, it is suggested that the sugarcane bagasse be mixed up to 75 % during particle board manufacturing so that good quality properties and environmental performance of panels can be provided....

  2. Potentials for Improvement of Resource Efficiency in Printed Circuit Board Manufacturing: A Case Study Based on Material Flow Cost Accounting

    Directory of Open Access Journals (Sweden)

    Yi-Xuan Wang

    2017-05-01

    Full Text Available The pursuit of sustainable resource use by manufacturing companies is driven by resource scarcity, environmental awareness, and cost savings potentials. To address these issues, Material Flow Cost Accounting (MFCA has been developed and applied as an effective environmental management tool. Within MFCA’s general allocation, the accounts of products and losses are overrated by weight or volume. However, such a method is incompatible with Printed Circuit Board (PCB manufacturing because of industry characteristics in which primary inputs and products are measured by area. Based on MFCA, this case study systematically established several linear cost calculation models along the production process for capturing the actual waste flows as well as performing cost-benefit analysis. The recognition of previously ignored losses offered the incentive to find appropriate indicators to conduct cost-benefit analysis on hotspots for losses. Loss identification and analysis indicated that machining and wiring are the necessities and priorities of process optimization for resource efficiency improvement measures. Therefore, this research could not only advance the achievement of a profitable and sustainable production while improving resource efficiency at the source but could also provide support for decision making in PCB manufacturing.

  3. Manufacture of Strand Board Bonded with Disposal Expanded Polystyrene as Binder

    OpenAIRE

    Hermawan, Andi; Ohuchi, Takeshi; Fujimoto, Noboru; 大内, 毅; 藤本, 登留

    2010-01-01

    The objective of this study was to evaluate the physical and mechanical properties of strand board bonded with disposal expanded polystyrene (EPS) as binder. The strand board was manufactured using strand made from Douglas-fir beams selected from construction scrap wood. The strands were oriented, and two types of three-layer (face-core-face) strand board were manufactured: one in which the board bounded with only disposal EPS (P board), and the other in which the board bonded with disposal...

  4. USE OF EUCALYPTUS WOOD FOR ORIENTED STRAND BOARD (OSB MANUFACTURING

    Directory of Open Access Journals (Sweden)

    Setsuo Iwakiri

    2004-06-01

    Full Text Available This research evaluated the potential use of Eucalyptus species for OSB manufacturing. The boards were manufactured at the density of 0,70 g/cm³ and 6% of the phenol-formaldheyde resin contents. The following Eucalyptus species were studied: E. grandis E. dunnii ,E. tereticornis E. saligna ,E. citriodora, and E. maculata. The results of the physical and mechanical property tests showed high potentiality of the uses of Eucalyptus grandis and Eucalyptus saligna for OSB manufacturing, Boards manufactured with Eucalyptus grandis wood presented similar or higher average values for physical and mechanical properties, in comparison to Pinus taeda, which is the main species used for OSB production in Brazil.

  5. 77 FR 20790 - Manufacturing Extension Partnership Advisory Board

    Science.gov (United States)

    2012-04-06

    ...: This meeting is being held in conjunction with MEP's Manufacturing Innovations 2012 Conference in... Board members, (2) a national manufacturing strategy, and (3) an update on MEP's workforce initiatives. The agenda may change to accommodate other Board business. Admission Instructions: Anyone wishing to...

  6. BOARD OF DIRECTORS STRUCTURE AND EARNINGS MANAGEMENT: BIST MANUFACTURING CASE

    Directory of Open Access Journals (Sweden)

    Hüseyin TEMİZ

    2018-01-01

    Full Text Available The aim of this study is to investigate association between firms’ board structure (independent members, audit comittee, female membership and board of directors size and earnings management. For the purpose of investigating associations four different earnings management models were used. In addition, four hypotheses were tested in the context of the study.  Within the scope of the study, data covering the years 2012 - 2016 belonging to the firms operating in the BIST Manufacturing Sector were used. According to results there is a relationship between the proportion of independent members in the board and earnings management practices based on accrual and sales manipulation. Obtained results confirm that the increase in the proportion of female members on the board reduces earnings management practices based on cash flow and sales manipulation. There is also evidence that an increase in the size of the board reduces earnings management practices based on cash flow and income manipulation. There is no supporting evidence that the proportion of audit comittee members reduces earnings management practices.

  7. Compressed Air System Enhancement Increases Efficiency and Provides Energy Savings at a Circuit Board Manufacturer (Sanmina Plant, Oswego, New York): Office of Industrial Technologies (OIT) BestPractices Technical Case Study

    International Nuclear Information System (INIS)

    Wogsland, J.

    2001-01-01

    This case study is one in a series on industrial firms who are implementing energy efficient technologies and system improvements into their manufacturing processes. This case study documents the activities, savings, and lessons learned on the circuit board manufacturer (Sanmina Plant) project

  8. Physico-mechanical comparison of urea formaldehyde bonded particle board manufactured from jute sticks and wood of Trewia nudiflora

    Directory of Open Access Journals (Sweden)

    Abu Saleh Md. Golam Kibria

    2012-12-01

    Full Text Available This study is to know the physical and mechanical properties of particle board made up of jute sticks (jutex board and wood chips (woodex board of Trewia nudiflora. Two leading particle board manufacturing industries of Bangladesh were selected first which have the same manufacturing process and adhesive composition. Boards of available thicknesses were collected randomly. From each thickness category, three replications were taken. The parameters were studied as adhesive composition,mass of a board, density, bending strength, modulus of elasticity,surface soundness, tensile strength, screw withdrawal, pressure and pressing time. Urea formaldehyde resin is used to manufacture both types of particle board. For achieving the greater efficiency of boards, some chemical compounds were mixed with the resin. Due to the change in thicknesses, boards were not always different in terms of the physical and mechanical properties. Moreover, except the modulus of elasticity (MOE, woodex boards were superior to the properties of jutex boards

  9. 76 FR 22674 - Manufacturing Extension Partnership Advisory Board

    Science.gov (United States)

    2011-04-22

    ... 5 p.m. on May 15, 2011. ADDRESSES: The meeting will be held at the Orlando World Center Marriott... Open Meeting. SUMMARY: NIST announces that the Manufacturing Extension Partnership (MEP) Advisory Board, National Institute of Standards and Technology (NIST) will hold an open meeting on Sunday, May 15, 2011...

  10. 75 FR 19941 - Manufacturing Extension Partnership Advisory Board

    Science.gov (United States)

    2010-04-16

    ... 4:30 p.m. on May 2, 2010. ADDRESSES: The meeting will be held at Orlando World Center Marriott... open meeting. SUMMARY: NIST announces that the Manufacturing Extension Partnership (MEP) Advisory Board, National Institute of Standards and Technology (NIST) will hold an open meeting on Sunday, May 2, 2010 from...

  11. Manufacturing and process optimization of porous rice straw board

    Science.gov (United States)

    Liu, Dejun; Dong, Bing; Bai, Xuewei; Gao, Wei; Gong, Yuanjuan

    2018-03-01

    Development and utilization of straw resources and the production of straw board can dramatically reduce straw waste and environmental pollution associated with straw burning in China. However, the straw board production faces several challenges, such as improving the physical and mechanical properties, as well as eliminating its formaldehyde content. The recent research was to develop a new straw board compound adhesive containing both inorganic (MgSO4, MgCO3, active silicon and ALSiO4) and organic (bean gum and modified Methyl DiphenylDiisocyanate, MDI) gelling materials, to devise a new high frequency straw board hot pressing technique and to optimize the straw board production parameters. The results indicated that the key hot pressing parameters leading to porous straw board with optimal physical and mechanical properties. These parameters are as follows: an adhesive containing a 4:1 ratio of inorganic-to-organic gelled material, the percentage of adhesive in the total mass of preload straw materials is 40%, a hot-pressing temperature in the range of 120 °C to 140 °C, and a high frequency hot pressing for 10 times at a pressure of 30 MPa. Finally, the present work demonstrated that porous straw board fabricated under optimal manufacturing condition is an environmentally friendly and renewable materials, thereby meeting national standard of medium density fiberboard (MDF) with potential applications in the building industry.

  12. 76 FR 53666 - Manufacturing Extension Partnership Advisory Board

    Science.gov (United States)

    2011-08-29

    ... MEP's Next Generation Strategy, and (3) discussion of innovation strategies for manufacturers... Information Technology and Innovation Foundation (ITIF) Offices, 1101 K Street, NW., Suite 610, Washington, DC... business. Admission Instructions: Anyone wishing to attend this meeting should submit their name, e-mail...

  13. Water-Based Coating Simplifies Circuit Board Manufacturing

    Science.gov (United States)

    2008-01-01

    The Structures and Materials Division at Glenn Research Center is devoted to developing advanced, high-temperature materials and processes for future aerospace propulsion and power generation systems. The Polymers Branch falls under this division, and it is involved in the development of high-performance materials, including polymers for high-temperature polymer matrix composites; nanocomposites for both high- and low-temperature applications; durable aerogels; purification and functionalization of carbon nanotubes and their use in composites; computational modeling of materials and biological systems and processes; and developing polymer-derived molecular sensors. Essentially, this branch creates high-performance materials to reduce the weight and boost performance of components for space missions and aircraft engine components. Under the leadership of chemical engineer, Dr. Michael Meador, the Polymers Branch boasts world-class laboratories, composite manufacturing facilities, testing stations, and some of the best scientists in the field.

  14. Computer aided production of manufacturing CAMAC-wired boards by the multiwire-technique

    Energy Technology Data Exchange (ETDEWEB)

    Martini, M; Brehmer, W

    1975-10-01

    The multiwire-technique is a computer controlled wiring method for the manufacturing of circuit boards with insulated conductors. The technical data for production are dimensional drawings of the board and a list of all points which are to be connected. The listing must be in absolute co-ordinates including a list of all soldering points for component parts and a reproducible print pattern for inscription. For this wiring method a CAMAC standard board, a layout plan with alpha-numeric symbols, and a computer program which produces the essential technical data were developed. A description of the alpha-numeric symbols, the quality of the program, recognition and checking of these symbols, and the produced technical data is presented. (auth)

  15. 2001 Industry Studies: Advanced Manufacturing

    Science.gov (United States)

    2001-05-28

    oriented, 19 and manufacturers are employing the Internet and associated information technologies to better integrate supply chains and form extended...ways to compete in world markets . As part of this ongoing transformation, the broad implementation of advanced manufacturing technologies , processes...competitive advantages and better performance in world markets . Importantly, advanced manufacturing involves the innovative integration of new technology

  16. NPS Transit System Passenger Boardings Study: Converting Ticket Sales to Passenger Boardings.

    Science.gov (United States)

    2016-01-01

    This report examines the reporting of passenger boardings (unlinked passenger trips) by NPS transit systems that use a ticket sales conversion methodology. By studying and validating the park units' passenger boarding methodology from converting tick...

  17. Treatment of Wastewater from Electroplating, Metal Finishing and Printed Circuit Board Manufacturing. Operation of Wastewater Treatment Plants Volume 4.

    Science.gov (United States)

    California State Univ., Sacramento. Dept. of Civil Engineering.

    One of four manuals dealing with the operation of wastewater plants, this document was designed to address the treatment of wastewater from electroplating, metal finishing, and printed circuit board manufacturing. It emphasizes how to operate and maintain facilities which neutralize acidic and basic waters; treat waters containing metals; destroy…

  18. Environmental and risk screening for prioritizing pollution prevention opportunities in the U.S. printed wiring board manufacturing industry.

    Science.gov (United States)

    Lam, Carl W; Lim, Seong-Rin; Schoenung, Julie M

    2011-05-15

    Modern manufacturing of printed wiring boards (PWBs) involves extensive use of various hazardous chemicals in different manufacturing steps such as board preparation, circuit design transfer, etching and plating processes. Two complementary environmental screening methods developed by the U.S. EPA, namely: (i) the Tool for the Reduction and Assessment of Chemical and Other Environmental Impacts (TRACI) and (ii) Risk-Screening Environmental Indicators (RSEI), are used to quantify geographic and chemical environmental impacts in the U.S. PWB manufacturing industry based on Toxics Release Inventory (TRI) data. Although the release weight percentages of industrial chemicals such as methanol, glycol ethers and dimethylformamide comprise the larger fraction of reported air and water emissions, results indicate that lead, copper and their compounds' releases correspond to the highest environmental impact from toxicity potentials and risk-screening scores. Combining these results with further knowledge of PWB manufacturing, select alternative chemical processes and materials for pollution prevention are discussed. Examples of effective pollution prevention options in the PWB industry include spent etchant recovery technologies, and process and material substitutions. In addition, geographic assessment of environmental burden highlights states where promotion of pollution prevention strategies and emissions regulations can have the greatest effect to curb the PWB industry's toxic release impacts. Copyright © 2011 Elsevier B.V. All rights reserved.

  19. Manufacture of Damascus steel: Metallographic study

    International Nuclear Information System (INIS)

    Criado, A.J.; Martinez, J.A.; Calabres, R.; Arias, D.

    1997-01-01

    Damascus Steel is the denomination that the Europeans gave to the material with which the musulman swords were manufactured during the Era of the Crusades. This hypereutectoid steel presents a high content in carbon more than 0.8%, and in some cases up to 2% in weight. The secret of its good mechanical characteristics is based in the hot forging process in the temperatures interval between 650 and 850 degree centigree. The final quenching in water brine or other aqueous solutions, confers to the swords manufactured with this steel a good resistance to its cutting edge and a high toughness. In the present investigation, the manufacture processes of this type of steel are studied. Electronic scanning microscopy has been applied to the study of materials manufactured by the authors following the ancient craftsmen methods of forging and quenching. (Author) 16 refs

  20. Board Size and Board Independence: A Quantitative Study on Banking Industry in Pakistan

    Directory of Open Access Journals (Sweden)

    Kashif Rashid

    2014-12-01

    Full Text Available This paper aims to investigate the relationship of board independence and board size with productivity and efficiency of the listed banks on the Karachi Stock Exchange, Pakistan. There is a lack of consensus regarding impact of corporate governance practices in correspondence to number of board members and board independence in banking sector. The derived results of the study show that there is a positive relationship between board independence and bank profitability and efficiency. Independent directors play a crucial role in providing genuine advice during executive decision making process which is an important source for improving overall corporate governance. Moreover, results regarding the role of control variables suggest a positive relationship of the total assets and deposits of the firm with the firm’s performance supporting stewardship theory in the market.

  1. Study on Resource Configuration on Cloud Manufacturing

    Directory of Open Access Journals (Sweden)

    Yanlong Cao

    2015-01-01

    Full Text Available The purpose of manufacturing is to realize the requirement of customer. In manufacturing process of cloud system, there exist a lot of resource services which have similar functional characteristics to realize the requirement. It makes the manufacturing process more diverse. To develop the quality and reduce cost, a resource configuration model on cloud-manufacturing platform is put forward in this paper. According to the generalized six-point location principle, a growth design from the requirement of customers to entities with geometric constraints is proposed. By the requirement growing up to product, a configuration process is used to match the entities with the instances which the resources in the database could supply. Different from most existing studies, this paper studies the tolerance design with multiple candidate resource suppliers on cloud manufacturing to make the market play a two-level game considering the benefit of customers and the profit of resources to give an optimal result. A numerical case study is used to illustrate the proposed model and configuration process. The performance and advantage of the proposed method are discussed at the end.

  2. Studies and manufacture of plutonium fuel

    International Nuclear Information System (INIS)

    Bussy, P.; Mustelier, J.P.; Pascard, R.

    1964-01-01

    The studies carried out at the C.E.A. on the properties of fast neutron reactor fuels, the manufacture of fuel elements and their behaviour under irradiation are broadly outlined. The metal fuels studied are the ternary alloys U Pu Mo, U Pu Nb, U Pa Ti, U Pa Zr, the ceramic fuels being mixed uranium and plutonium oxides, carbides and nitrides obtained by sintering. Results are given on the manufacture of uranium fuel elements containing a small proportion of plutonium, used in a critical experiment, and on the first experiments in the manufacture of fuel elements for the reactor Rapsodie. Finally the results of irradiation tests carried out on the prototype fuel pins for Rapsodie are described. (authors) [fr

  3. Manufacturing Methods and Technology for Digital Fault Isolation for Printed Circuit Boards.

    Science.gov (United States)

    1979-08-25

    composite tester rank. 2-12 12-485 Information Media Department Proof Ink Art CRC Log No. 99216/pi Standard MODUTLAR Ke Nline NOTE: LEFT HAND) PAGE CNLY...support, were given prime consideration. In addition, size of the manufacturer, ATE market volume of manufacturer, and number of D/PCB testers sold of the...Hewlett Characteristic Gen Rad Automation Packard Teradyne 1. Size of Manufacturer >100M 80M >100M >100M 4 (4) 3 (3) 4 (4) 4 (4) 2. ATE Market Value of

  4. Manufacturing study of beryllium bonded structures

    International Nuclear Information System (INIS)

    Onozuka, M.; Hirai, S.; Kikuchi, K.; Oda, Y.; Shimizu, K.

    2004-01-01

    Manufacturing study has been conducted on Be-bonded structures employed in the first-wall panel of the blanket system for the ITER. For Be tiles bonded to the Cu-Cr-Zr alloy heat sink with stainless-steel cooling pipes, a one-axis hot press with two heating process has been used to bond the three materials. First, Cu-alloy and SS materials are bonded diffusively. Then, Be tiles are bonded to the pre-bonded structure under 20 MPa and at 560 degree C. An Al-Si base interlayer has been used to bond Be to the Cu-Alloy. Because of the limited heat processes using a conventional hot press, the manufacturing cost can be minimized. Using the above bonding techniques, a partial mockup of a blanket first-wall panel with 16 Be tiles (with 50 mm in size) has been successfully manufactured. (author)

  5. The Evaluation of Usefulness of the Manufactured DTAB (Double Tilt Angle Board) System

    International Nuclear Information System (INIS)

    Lee, Joung Jin; Jang, In Gi; Kim, Wan Sun

    2006-01-01

    To resolution of A hospital-handmade modification double tilt angle immobilization system (DTAB immobilization system) and to report the clinical results of it. It was developed in conjunction with the breast board for patients unable to achieve and maintain the desired uncomfortable respiration and position of set-up needed in the treatment of RT (This custom design provides an alternative to accomplishing this desired head angle needed to relax position treatment area, realizing that the lenses totally protected eye-ball out) By using the angled breast board and SBDD(small bowel device), reproducibility of set-up and patient comfort were addressed throughout the simulation, computed tomography planning and treatment process. Usually patients the error range-within 5 mm. When use of Aqua patients error range-within 3 mm. It was constructed in tandem with a unique custom-built double tilt angle board (DTAB). It was designed to eliminate clinical set-up problems with head immobilization and instability during treatment, thus providing for a more comfortable head rest for the patient.

  6. 78 FR 33074 - Army Science Board Summer Study Session

    Science.gov (United States)

    2013-06-03

    ...--This study evaluates what science and technology competencies the Army must maintain and/or develop as... DEPARTMENT OF DEFENSE Department of the Army Army Science Board Summer Study Session AGENCY... the Army announces the following committee meeting: 1. Name of Committee: Army Science Board (ASB). 2...

  7. M10.6.6: Designed and manufactured Frequency Synthesizer Board (AMC)

    CERN Document Server

    Czuba, K

    2011-01-01

    The LLRF system require generation of highly stable clock and trigger signals for high precision data processing and synchronous system operation. This deliverable provides an updated AMC module designed to fulfill the LLRF system timing synchronization needs. The module contains three independent clock synthesizers that are able to generate LVDS clock signals in the range of 10 MHz to 100 MHz. The clock synthesizers can be synchronized either by an internal quartz oscillator or an external phase reference signal provided to the board from the FLASH Master Oscillator. Besides clock synthesizers the AMC card contains also an optical receiver suited to convert and decode FLASH timing signals.

  8. Case study of lean manufacturing application in a die casting manufacturing company

    Science.gov (United States)

    Ching, Ng Tan; Hoe, Clarence Chan Kok; Hong, Tang Sai; Ghobakhloo, Morteza; Pin, Chen Kah

    2015-05-01

    The case study of lean manufacturing aims to study the application of lean manufacturing in a die casting manufacturing company located in Pulau Penang, Malaysia. This case study describes mainly about the important concepts and applications of lean manufacturing which could gradually help the company in increasing the profit by studying and analyzing their current manufacturing process and company culture. Many approaches of lean manufacturing are studied in this project which includes: 5S housekeeping, Kaizen, and Takt Time. Besides, the lean tools mentioned, quality tool such as the House of Quality is being used as an analysis tool to continuously improve the product quality. In short, the existing lean culture in the company is studied and analyzed, with recommendations written at the end of this paper.

  9. Development of Self Fire Retardant Melamine-Animal Glue Formaldehyde (MGF) Resin for the Manufacture of BWR Ply Board

    Science.gov (United States)

    Khatua, Pijus Kanti; Dubey, Rajib Kumar; Roymahapatra, Gourisankar; Mishra, Anjan; Shahoo, Shadhu Charan; Kalawate, Aparna

    2017-10-01

    Wood is one of the most sustainable, naturally growing materials that consist mainly of combustible organic carbon compounds. Since plywood are widely used nowadays especially in buildings, furniture and cabinets. Too often the fire behavior of ply-board may be viewed as a drawback. Amino-plastic based thermosetting resin adhesives are the important and most widely used in the plywood panel industries. The fire retardant property of wood panel products by adding animal glue as an additive in the form of MGF resin and used as substitute of melamine for manufacture of plywood. Environment concerns and higher cost of petroleum based resins have resulted in the development of technologies to replace melamine partially by biomaterials for the manufacturing of resin adhesive. Natural bio-based materials such as tannin, CNSL (cardanol), lignin, soya etc. are used as partial substitution of melamine. This article presents the development of melamine-animal glue formaldehyde resin as plywood binder. About 30 % melamine was substituted by animal glue and optimized. The different physico-mechanical and fire retardant property properties tested as per IS: 1734-1983 and IS: 5509-2000 respectively are quite satisfactory. The production of adhesive from melamine with compatible natural proteinous material is cost effective, eco-friendly and enhance the fire retardant property.

  10. A simulation study on garment manufacturing process

    Science.gov (United States)

    Liong, Choong-Yeun; Rahim, Nur Azreen Abdul

    2015-02-01

    Garment industry is an important industry and continues to evolve in order to meet the consumers' high demands. Therefore, elements of innovation and improvement are important. In this work, research studies were conducted at a local company in order to model the sewing process of clothes manufacturing by using simulation modeling. Clothes manufacturing at the company involves 14 main processes, which are connecting the pattern, center sewing and side neating, pockets sewing, backside-sewing, attaching the front and back, sleeves preparation, attaching the sleeves and over lock, collar preparation, collar sewing, bottomedge sewing, buttonholing sewing, removing excess thread, marking button, and button cross sewing. Those fourteen processes are operated by six tailors only. The last four sets of processes are done by a single tailor. Data collection was conducted by on site observation and the probability distribution of processing time for each of the processes is determined by using @Risk's Bestfit. Then a simulation model is developed using Arena Software based on the data collected. Animated simulation model is developed in order to facilitate understanding and verifying that the model represents the actual system. With such model, what if analysis and different scenarios of operations can be experimented with virtually. The animation and improvement models will be presented in further work.

  11. IDENTIFICATION OF FACTORS AFFECTING LEAN MANUFACTURING IMPLEMENTATION IN PUMP MANUFACTURING COMPANIES IN INDIA - A CASE STUDY

    Directory of Open Access Journals (Sweden)

    Pratik Badgujar

    2016-09-01

    Full Text Available Lean Manufacturing has now become a common word in the industrial corridors. It has now been applied to the industries of several domains. No wonder that the Pump manufacturing has also witnessed profound influence of Lean philosophy. Pump manufacturing in India has a history as old as 80 years with more than 500 pump manufacturing units presently working. The present research is an explorative study and was undertaken to identify various factors affecting lean manufacturing implementation in pump manufacturing industry. Analysis of results revealed that the companies registered increase in productivity and reduction in costs and wastes. Lack of understanding, Supply chain and Company culture are found to be the strongest barriers of lean manufacturing implementation. The multiple regression model revealed that Lack of workers support can be fairly reduced by educating them about Lean Manufacturing and establishing a healthy communication with workers. An analysis across different management levels revealed disparity in perceptions and views of personnel. There is a need for top management to align organization toward common goals so as to achieve better success in implementing lean manufacturing.

  12. Co-recycling of acrylonitrile-butadiene-styrene waste plastic and nonmetal particles from waste printed circuit boards to manufacture reproduction composites.

    Science.gov (United States)

    Sun, Zhixing; Shen, Zhigang; Zhang, Xiaojing; Ma, Shulin

    2015-01-01

    This study investigated the feasibility of using acrylonitrile-butadiene-styrene (ABS) waste plastic and nonmetal particles from waste printed circuit boards (WPCB) to manufacture reproduction composites (RC), with the aim of co-recycling these two waste resources. The composites were prepared in a twin-crew extruder and investigated by means of mechanical testing, in situ flexural observation, thermogravimatric analysis, and dimensional stability evaluation. The results showed that the presence of nonmetal particles significantly improved the mechanical properties and the physical performance of the RC. A loading of 30 wt% nonmetal particles could achieve a flexural strength of 72.6 MPa, a flexural modulus of 3.57 GPa, and an impact strength of 15.5 kJ/m2. Moreover, it was found that the application of maleic anhydride-grafted ABS as compatilizer could effectively promote the interfacial adhesion between the ABS plastic and the nonmetal particles. This research provides a novel method to reuse waste ABS and WPCB nonmetals for manufacturing high value-added product, which represents a promising way for waste recycling and resolving the environmental problem.

  13. Spring 2008 Industry Study. Manufacturing Industry

    Science.gov (United States)

    2008-01-01

    Chamber of Commerce puts the number of U.S. manufacturing jobs lost to piracy at 750,000 (U.S. Chamber of Commerce , 2007). Interviews with...economy each year and puts millions at risk from counterfeit medicines and engine parts (U.S. Chamber of Commerce , 2007). There are, however, several...Association of Manufacturers (NAM) and the U.S. Chamber of Commerce advocate global changes to IP protection, calling for the “reform and harmonization

  14. Manufacturing Industry, Industry Study, Spring 2009

    Science.gov (United States)

    2009-01-01

    Shuib, Lieutenant Colonel, Royal Malaysian Air Force Kevin Brennan, Commander, U.S. Navy Mr. K. Ilia Christman, Department of the Navy Robert Costa...panel to review the impact of taxation , regulatory compliance, and benefits burdens on domestic manufacturers. Review would bring focus to ways...Finally, the MISG considered the effect of these 14 characteristics on the U.S. Manufacturing Industry vis-à-vis Chinese and Malaysian

  15. AN EXPLORATORY STUDY OF MANUFACTURING STRATEGY OF PACKAGING PRODUCT-MANUFACTURING COMPANIES IN INDIA

    Directory of Open Access Journals (Sweden)

    Pradip P. Patil

    2012-09-01

    Full Text Available This paper presents finding of a survey on manufacturing strategy implementation (MSI adopted by the Indian packaging product manufacturing companies (IPPMC. Though the companies differ in terms of prod uct types (shape, method, content and material of packaging, conversion system, sales volume and sophistication of machinery used, they share common purpose that are used for packaging the product s . With growth in demand for consumer products, packaging f orms basis of differentiating products from competitors. The survey shows emphasis on implementation of manufacturing strategy, key decision areas, identifies competitive priorities, order winners. To get insight, three companies are selected for detailed case studies.

  16. Airborne concentrations of methylene diphenyl diisocyanate (MDI) in North American wood mills during the manufacturing of oriented strand board (OSB).

    Science.gov (United States)

    Karoly, William J; Flatley, John J; Stevenson, Ralph D; Bowers, John D

    2004-12-01

    Air monitoring data were collected from industrial hygiene surveys over an 8-year period in oriented strand board (OSB) mills. Personal samples were taken to evaluate potential employee exposures to MDI. Area samples were taken to determine the effectiveness of control measures used in the mills to prevent fugitive emissions of wood dust, MDI, and MDI-coated wood dust from the OSB manufacturing process. Personal sampling results (578 samples covering 11 different job categories) ranged from 0.0002-0.524 mg/m3, with a GM = 0.001 and GSD = 3.71. Area sampling results (1657 samples covering 14 stationary locations in the mills) ranged from 0.0002-2.5 mg/m3, with a GM = 0.004 and GSD = 5.52. The statistical range of the data suggests high variability. While exposures to MDI above the established limits (0.051 mg/m3, 8-hour time-weighted average, 0.2 mg/m3, ceiling) can and do occur when engineering controls are not maintained and/or proper work practices and personal protective equipment are not followed/used for certain high exposure potential tasks, the data indicate that over 97% of the personal and 92% of the area sampling results are less than 0.051 mg/m3. Wipe testing was performed to determine the presence of removable, unreacted diisocyanates (NCO functional groups)from various surfaces. Positive results were found in about 13% of the wipe tests on surfaces confined to the blender, forming line, and hopper deck process areas.

  17. A case study of lean, sustainable manufacturing

    Directory of Open Access Journals (Sweden)

    Geoff Miller

    2010-06-01

    Full Text Available A small furniture production company has integrated lean tools and sustainability concepts with discrete event simulation modeling and analysis as well as mathematical optimization to make a positive impact on the environment, society and its own financial success. The principles of lean manufacturing that aid in the elimination of waste have helped the company meet ever increasing customer demands while preserving valuable resources for future generations. The implementation of lean and sustainable manufacturing was aided by the use of discrete event simulation and optimization to overcome deficits in lean’s traditional implementation strategies. Lean and green manufacturing can have a more significant, positive impact on multiple measures of operational performance when implemented concurrently rather than separately. These ideas are demonstrated by three applications.

  18. Comparative study of thermal insulation boards from leaf and bark ...

    African Journals Online (AJOL)

    Thus, several researches have succeeded in using these plants and agro waste fibres in developing renewable and environmentally friendly thermal insulation products. The aim of this study was to compare the performance of insulation boards made from leave and bark fibres of Pilios tigma thonningii L.in terms of density, ...

  19. Ocean Studies Board annual report 1989 and future plans

    International Nuclear Information System (INIS)

    1990-01-01

    The major activities of the Ocean Studies Board of the National Research Council for 1989 are reviewed. The following are discussed: the Navy Panel, the CO2 Panel, the Committee on the Ocean's Role in Global Change, the Committee on the Coastal Ocean, the Workshop on Issues of U.S. Marine Fisheries, and the Continental Margins Workshop Committee. Future plans are covered

  20. Empirical Studies in Discrete Parts Manufacturing Management

    NARCIS (Netherlands)

    M.F. van Assen (Marcel)

    2005-01-01

    textabstractManufacturing firms are bound by the conditions of their environment. They have to fulfil the demands of various stakeholders, such as customers, suppliers, government, financiers, and employees) that provide them the resources to perform their operations. The effectiveness of a

  1. Manufacture and study of osmotic metallic membranes

    International Nuclear Information System (INIS)

    Deschamps, Richard

    1970-01-01

    The manufacture of metallic membranes, which are semi-permeable to salt water, was investigated. The best results were obtained with nickel which had been deposited 'in situ' on sintered nickel, whose pore spectrum was sharp. The investigation showed that in the case of metallic membranes reverse osmosis is only a filtration. The large quantities of water produced and the low salt rejection rate compared to that with cellulose acetate membranes demonstrated that metallic membranes are better suited to depollution than desalination. (author) [fr

  2. Study for the LHCb upgrade read-out board

    CERN Document Server

    Cachemiche, J P; Hachon, F; Le Gac, R; Marin, F; 10.1088/1748-0221/5/12/C12036

    2010-01-01

    The LHCb experiment envisages to upgrade its readout electronics in order to increase the readout rate from 1 MHz to 40 MHz. This electronics upgrade is very challenging, since readout boards will have to handle a higher number of serial links with an increased bandwidth. In addition, the new communication protocol (GBT) developed by the CERN micro-electronics group mixes data acquisition, slow control and clock distribution on the same link. To explore the feasibility of such a readout system, elementary building blocks have been studied. Their goals are multiple: understand signal integrity when using highly integrated high speed serial links running at 8 - 10 Gbits/s; test the implementation of the GBT protocol within FPGAs; understand advantages and limitations of commercial standard with a predefined interconnection topology; validate ideas on how to control easily such a system. We designed two boards compliant with the xTCA standard which meets an increasing interest in the physics community. The first...

  3. Islamic Boarding School Curriculum in Indonesia: a Case Study in Islamic Boarding School in South Kalimantan

    OpenAIRE

    Yakin, Husnul

    2012-01-01

    Islamic boarding school as traditional Islamic education institution is an invaluable part of Indonesian national education system. This education institute has been able to show itself freely according to society needs and epoch demand without loosing its essential identity as tafaqquh fiddin institution. The important factor that sustains this condition can be seen from the curriculum aspect. Therefore, this article is intended to investigate Islamic boarding school curriculum in Indonesia,...

  4. Structure Property Studies for Additively Manufactured Parts

    Energy Technology Data Exchange (ETDEWEB)

    Milenski, Helen M [Univ. of Mexico, Los Alamos, NM (United States); Schmalzer, Andrew Michael [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Kelly, Daniel [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2015-08-17

    Since the invention of modern Additive Manufacturing (AM) processes engineers and designers have worked hard to capitalize on the unique building capabilities that AM allows. By being able to customize the interior fill of parts it is now possible to design components with a controlled density and customized internal structure. The creation of new polymers and polymer composites allow for even greater control over the mechanical properties of AM parts. One of the key reasons to explore AM, is to bring about a new paradigm in part design, where materials can be strategically optimized in a way that conventional subtractive methods cannot achieve. The two processes investigated in my research were the Fused Deposition Modeling (FDM) process and the Direct Ink Write (DIW) process. The objectives of the research were to determine the impact of in-fill density and morphology on the mechanical properties of FDM parts, and to determine if DIW printed samples could be produced where the filament diameter was varied while the overall density remained constant.

  5. Study, design and manufacture eddy current probes for industry applications

    International Nuclear Information System (INIS)

    Nguyen Phuc; Nguyen Van Thuy; Vuong Binh Duong; Do Minh Duc; Trinh Dinh Truong; Tran Trong Duc; Do Tung Khanh; Dang Quang Trung

    2016-01-01

    This study is based on the studying, designing and manufacturing of eddy current probes for industry applications. The main tasks of this study include: i) Describes the overview and classification of eddy current probes (which can be classified into three categories based on the mode of operation: absolute eddy current probe, differential eddy current probe and reflect eddy current probe); ii) Describes the three methods of probe designing and manufacturing (including experimental, analytical and numerical designs); iii) Describes the designing and manufacturing of eddy current probes for industry applications, which based on experimental and analytical methods. Based on this study, we have successfully manufactured some current probes (including absolute eddy current probe, differential eddy current probe and reflect eddy current probe) for surface and tube inspections. (author)

  6. Study for Manufacturing of ITER TF Coil Radial Plates

    International Nuclear Information System (INIS)

    Fietz, W.H.; Muetzel, W.

    2006-01-01

    During the previous design phase of ITER the ITER Toroidal Field Model Coil (TFMC) has been built to verify the TF coil concept of ITER and to proof the feasibility of an industrial fabrication of such a coil. In April 2004, Forschungszentrum and BNG, started a Manufacturing Study for the full scale Radial Plates (RP) of the TF Coils in the frame of an EFDA task. The main part of the Study was to develop feasible concepts of the technology for the manufacturing of the Full Scale Radial Plates starting with the raw material until final testing. The Feasibility Study has covered all manufacturing steps that are necessary for production of the RP. It has included as well a basic layout for the manufacturing process. During the work several proposals for the single manufacturing work steps have been developed. After that an evaluation of the found proposals has taken place. The most feasible proposals have been combined to manufacturing concepts. Finally two main Concepts were elaborated and evaluated: Concept 1 includes the premachining of segments with grooves, the welding of the segments and the final machining of the RP. Concept 2 includes the welding of not machined small segments to the D-shape of the RP and the following machining of the surface and grooves. Both Concepts will be described in detail with a comparison of tooling and manufacturing details, achievement of technological requirements as well as with the requirements coming from the overall time schedule. Based on the results of the assessment of the different concepts and manufacturing techniques Concept 1 shows some advantages compared to Concept 2. These will be described in the paper. In addition a proposal about additional R(and)D in front of the later manufacturing will be made. (author)

  7. Evaluation of potentical use of the wood of Schizolobium amazonicum “Paricá” and Cecropia hololeuca “Embaúba” for wood cement board manufacture

    Directory of Open Access Journals (Sweden)

    Vinicius Yurk da Rocha

    2012-06-01

    Full Text Available This research was developed to evaluate the potential use of Schizolobium amazonicum “Paricá” and Cecropia hololeuca “Embaúba” wood for wood cement board manufacture. Panels with the density of 1.200 kg/m³ were made, using cement CP V ARI as mineral bonding and wood particles without treatment and treated with immersion in cold water, hot water and sodium hydroxide. The panels were pressed at the pressure of 40 kgf/cm², room temperature and press / clipping time of 24 hours and maturation time of 28 days. The evaluation of the properties of water absorption, thickness swelling, internal bond, modulus of elasticity and modulus of rupture, showed that Schizolobium amazonicum “Paricá” and Cecropia hololeuca “Embaúba” wood are technically feasible for wood-cement board manufacture. It was also found that the panels of embaúba exhibit some properties superior to those of the paricá, and the particles do not necessarily need treatment.

  8. Overall Equipment Efficiency (OEE Enhancement in Manufacture of Electronic Components & Boards Industry through Total Productive Maintenance Practices

    Directory of Open Access Journals (Sweden)

    Fam Soo-Fen

    2018-01-01

    Full Text Available In an environment of intense global competition, both creative and proven strategies need to be considered in order to bring about the effectiveness and efficiency in manufacturing operation. Total Productive Maintenance (TPM is one of the effective maintenance strategy in enhancing the equipment effectiveness and to achieve a significant competitive advantage. This research paper addresses the impact of three TPM pillars namely planned maintenance (PM, autonomous maintenance (AM and focused maintenance (FM on overall equipment effectiveness (OEE of die attach equipment in the production line of semiconductor industry. The effect of TPM on the OEE is also investigated depending on the equipment types, in where die attach process consist of two models-CANON and ESEC. The primary data was collected from an organization's database and was analysed by SPSS V23. The preliminary results of the analysis showed that the performance of OEE in ESEC is better than the CANON after the implementation of TPM. The analysis also showed that out of the three TPM practices deployed, planned maintenance of equipment by production and maintenance team played the biggest role in increasing the equipment effectiveness. In conclusion, this study provides insights the importance of implementing TPM in order to succeed in a highly demanding market arena.

  9. On-board data management study for EOPAP

    Science.gov (United States)

    Davisson, L. D.

    1975-01-01

    The requirements, implementation techniques, and mission analysis associated with on-board data management for EOPAP were studied. SEASAT-A was used as a baseline, and the storage requirements, data rates, and information extraction requirements were investigated for each of the following proposed SEASAT sensors: a short pulse 13.9 GHz radar, a long pulse 13.9 GHz radar, a synthetic aperture radar, a multispectral passive microwave radiometer facility, and an infrared/visible very high resolution radiometer (VHRR). Rate distortion theory was applied to determine theoretical minimum data rates and compared with the rates required by practical techniques. It was concluded that practical techniques can be used which approach the theoretically optimum based upon an empirically determined source random process model. The results of the preceding investigations were used to recommend an on-board data management system for (1) data compression through information extraction, optimal noiseless coding, source coding with distortion, data buffering, and data selection under command or as a function of data activity, (2) for command handling, (3) for spacecraft operation and control, and (4) for experiment operation and monitoring.

  10. The Effect of Board Size and Board Composition on Firms Corporate Environmental Disclosure: A Study of Selected Firms in Nigeria

    Directory of Open Access Journals (Sweden)

    Uwalomwa Nil Uwuigbe

    2011-10-01

    Full Text Available Environmental problems have become major headlines due to the negative effects they bring to the stability of the ecosystem. Thus, the increased awareness of social responsibility or, specifically, environmental concern is now a challenge facing the corporate world. Hence this study tests whether board size and board composition have any association with the level of firms’ corporate environmental disclosure in annual reports. To achieve the objective of this study, a total of 40 listed firms on the floor of the Nigerian stock exchange market were used. Also, the study critically developed and utilized the Kinder Lydenberg Domini (KLD rating scheme to analyze the level of corporate environmental disclosure made by firms in their annual reports for the period 2006-2010. In addition, the simple regression analysis was used to test the research propositions as stated in the study. However, empirical findings from the study reveal that while board size has a significant negative relationship with the level of corporate environmental disclosure; board composition on the other hand has a significant positive relationship with the level of firms’ corporate environmental disclosure in the annual report.

  11. Study and manufacture of an analysis magnet

    International Nuclear Information System (INIS)

    Pronier, Jean

    1965-01-01

    This document reports the study and design of an apparatus aimed at a precise qualitative and quantitative analysis of particle beams produced by a number of ion sources of different types, and at using mono-energetic ion beams for experiments related to accelerators. Two analysis methods are addressed, presented and discussed (the electromagnetic and the electrostatic analysis) and the reasons for the choice of the electromagnetic analysis are explained. The author then reports the study of the analyser: analysis of theoretical capacities of separation of particles with a not much different M/Z rate, imposed characteristics, optical design, calculation of the slot image position, second and third order aberrations, correction of second order aberrations, and so on. He reports calculations related to the analyser: vacuum chamber, field map in the air gap, surface of polar parts, flux calculation in the air gap, comparison between experimental and theoretical results, ampere turn calculation, winding calculation. The induction measurement is described and the experiment is reported. Experimental results are reported in terms of analysis of gases ionized by a high frequency ion source [fr

  12. The International Location Decision: A Study of Manufacturing Firms

    DEFF Research Database (Denmark)

    Touray, Ebou; Schmidt, Andreas; Herbert-Hansen, Zaza Nadja Lee

    2018-01-01

    The aim of this paper is to build a broader understanding of the international location decision (ILD) of manufacturing by investigating and mapping Danish manufacturing firms’ related activities and underlying processes. Using an exploratory survey ap-proach on 17 Danish firms, the study shows...... there is less emphasis on cost than in past studies and a large unstructured human influence. A framework containing six catego-ries of ILD factors—cost, labor and social characteristics, infrastructure, politics and regulations, economics, and markets and resources—and an assessment of their respec-tive single...

  13. Digital signal display board design: A knowledge based study

    International Nuclear Information System (INIS)

    Chaitanya, V. Sree Krishna; Rao, C. Raghavendra

    2007-01-01

    The digital signal display board is assumed to be composed of picture tubes for the purpose of displaying characters. The signal board with the picture tubes constitutes an Information System. A methodology for obtaining the discrimable matrix or table (more decisive attributes) and knowledge reduction for the above information system is proposed

  14. Bullying in German Boarding Schools: A Pilot Study

    Science.gov (United States)

    Pfeiffer, Jens P.; Pinquart, Martin

    2014-01-01

    Adolescents who attend boarding schools share more time with peers than do students from day schools which, in turn, could provide more opportunities for bullying. Furthermore, some students attend boarding schools because of former social problems. In order to analyse the role of these factors, we examined the bullying behaviour of 706 German…

  15. Motion and time study analysis of wooden locally manufactured ...

    African Journals Online (AJOL)

    Studies were carried out on time-and-motion-economy of wooden locally manufactured duplicating machines. Two versions of the machine were used for the study, viz: standard version and semi-mechanized version. Working with both auxiliary and routine operations, the standard duplicator produced printed paper at an ...

  16. INDICATORS FOR SUSTAINABILITY IN INDUSTRIAL SYSTEMS CASE STUDY: PAPER MANUFACTURING

    Directory of Open Access Journals (Sweden)

    Maria Emiliana Fortună

    2011-12-01

    Full Text Available The paper describes a framework for promoting sustainability by using indicators for sustainable production. The concept of sustainable production is described as it is viewed by various organisms actions involved in the analysis of the sustainable industrial systems.The measure of sustainability is approached considering indicators of sustainable production, addressing both their dimensions and qualitative and quantitative features.The proposed framework refines the sustainability dimension for a case study which envisages sustainability in paper manufacturing. The analysis takes into account the life cycle analysis for the considered process since the environmental impact is seen as an essential sustainability indicator. Paper recycling and reuse is associated environmental and social costs, as a preferred alternative in waste minimization hierarchy in the manufacturing of non-trees eco-friendly paper.Proactive initiatives to improve the environmental performances of production process are considered as powerful tools for improving the paper manufacturing environmental footprint.

  17. Implementing the board of directors’ mechanism – An empirical study of the listed firms in Libya

    Directory of Open Access Journals (Sweden)

    Jill Atkins

    2018-01-01

    Full Text Available This paper aims to investigate the extent to which board of directors’ mechanism is implemented in Libyan listed companies. This includes a consideration of composition, duties and responsibilities of the board directors. This study employed a questionnaire survey to collect required data from four key stakeholder groups: Boards of Directors (BD, Executive Managers (EM, Regulators and External Auditors (RE and Other Stakeholders (OS. The results of this study provided evidence that Libyan listed companies generally comply with the Libyan Corporate Governance Code (LCGC requirements regarding the board composition: the findings assert that most boards have between three and eleven members, the majority of whom are non-executives and at least two or one-third of whom (whichever is greater are independent. Moreover, the results indicate that general assemblies in Libyan listed companies are practically committed to the LCGC’s requirements regarding the appointment of board members and their length of tenure. The findings provide evidence that boards in Libyan listed companies are carrying out their duties and responsibilities in accordance with internal regulations and laws, as well as the stipulations of the LCGC (2007. Furthermore, the stakeholder groups were broadly satisfied that board members are devoting sufficient time and effort to discharge these duties and responsibilities properly. This study helps to enrich our understanding and knowledge of the current practice of corporate boards as a significant mechanism of corporate governance (CG by being the first to address the board of directors’ mechanism in Libyan listed companies.

  18. Root Cause Assessment for a Manufacturing Industry: A Case Study

    Directory of Open Access Journals (Sweden)

    R. Kalantri

    2013-03-01

    Full Text Available Root-cause identification for quality related problems are key issues for manufacturing processes. It has been a very challenging engineering problem particularly in a multistage manufacturing, where maximum number of processes and activities are performed. However, it may also be implemented with ease in each and every individual set up and activities in any manufacturing process. Kaizen is aimed towards reduction in different types of losses i.e. Failure Loss/ Breakdown Loss, Minor stoppage, idling loss, Setup and adjustment loss etc. So as to improve quality and productivity.In this report, root-cause identification methodology has been adopted to eliminate the rejection of product manufactured by the enterprise and improving the life of product. Brainstorming and other Root Cause Assesmenttools have been used to find out the reasons of tube failure and vibration in tubular strander. Solutions of these problems have also given in this report. Kaizen activities have reduced the time consumed in daily activities of cleaning, lubricating, inspection etc. A detailed study has illustrated the effectiveness of the proposed methodology.

  19. The American Board of Internal Medicine Maintenance of Certification Examination and State Medical Board Disciplinary Actions: a Population Cohort Study.

    Science.gov (United States)

    McDonald, Furman S; Duhigg, Lauren M; Arnold, Gerald K; Hafer, Ruth M; Lipner, Rebecca S

    2018-03-07

    Some have questioned whether successful performance in the American Board of Internal Medicine (ABIM) Maintenance of Certification (MOC) program is meaningful. The association of the ABIM Internal Medicine (IM) MOC examination with state medical board disciplinary actions is unknown. To assess risk of disciplinary actions among general internists who did and did not pass the MOC examination within 10 years of initial certification. Historical population cohort study. The population of internists certified in internal medicine, but not a subspecialty, from 1990 through 2003 (n = 47,971). ABIM IM MOC examination. General internal medicine in the USA. The primary outcome measure was time to disciplinary action assessed in association with whether the physician passed the ABIM IM MOC examination within 10 years of initial certification, adjusted for training, certification, demographic, and regulatory variables including state medical board Continuing Medical Education (CME) requirements. The risk for discipline among physicians who did not pass the IM MOC examination within the 10 year requirement window was more than double than that of those who did pass the examination (adjusted HR 2.09; 95% CI, 1.83 to 2.39). Disciplinary actions did not vary by state CME requirements (adjusted HR 1.02; 95% CI, 0.94 to 1.16), but declined with increasing MOC examination scores (Kendall's tau-b coefficient = - 0.98 for trend, p actions were less severe among those passing the IM MOC examination within the 10-year requirement window than among those who did not pass the examination. Passing a periodic assessment of medical knowledge is associated with decreased state medical board disciplinary actions, an important quality outcome of relevance to patients and the profession.

  20. 77 FR 60116 - Human Studies Review Board; Notification of a Public Meeting

    Science.gov (United States)

    2012-10-02

    ... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2012-0718; FRL-9736-4] Human Studies Review Board; Notification of a Public Meeting AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The EPA Office of the Science Advisor announces a public meeting of the Human Studies Review Board to...

  1. 78 FR 57383 - Human Studies Review Board; Notification of a Public Meeting

    Science.gov (United States)

    2013-09-18

    ... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2013-0626; FRL-9900-98-ORD] Human Studies Review Board; Notification of a Public Meeting AGENCY: U.S. Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The EPA Office of the Science Advisor announces a public meeting of the Human Studies Review Board to...

  2. 77 FR 74004 - Human Studies Review Board; Notification of a Public Meeting

    Science.gov (United States)

    2012-12-12

    ... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2012-0892; FRL-9761-4] Human Studies Review Board; Notification of a Public Meeting AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The EPA Office of the Science Advisor announces a public meeting of the Human Studies Review Board to...

  3. 76 FR 59697 - Human Studies Review Board (HSRB); Notification of a Public Meeting

    Science.gov (United States)

    2011-09-27

    ... public meeting of the Human Studies Review Board (HSRB) to advise the Agency on EPA's scientific and... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2011-0693; FRL-9472-4] Human Studies Review Board (HSRB); Notification of a Public Meeting AGENCY: Environmental Protection Agency (EPA). ACTION: Notice...

  4. 76 FR 80938 - Human Studies Review Board; Notification of a Public Meeting

    Science.gov (United States)

    2011-12-27

    ... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2011-0954; FRL-9611-6] Human Studies Review Board; Notification of a Public Meeting AGENCY: U.S. Environmental Protection Agency. ACTION: Notice. SUMMARY: The EPA Office of the Science Advisor announces a public meeting of the Human Studies Review Board to advise the...

  5. New training framework for lean manufacturing – an empirical study

    OpenAIRE

    Ichimura, Maki; Arunachalam, Subramaniam; Jahankhani, Hamid

    2007-01-01

    Lean Manufacturing (LM) has been one of the centrepieces of manufacturing enterprises since Toyota has magnificently improved its manufacturing performance through implementing Toyota Production System (TPS). Moreover, it has been proven that LM is the manufacturing system that improves shop floor performances. Success stories of LM have led a large number of manufacturing companies to attempt to implement LM in order to improve their shop floor performance and retain competitiveness. However...

  6. Feasibility Study on Manufacturing Lightweight Aggregates from Water Purification Sludge

    Science.gov (United States)

    Peng, Ching-Fang; Chen, How-Ji

    2018-02-01

    This study mainly discussed the feasibility of manufacturing lightweight aggregates from water purification sludge in Taiwan. They were analysed for the physical and chemical composition before the sintering test for lightweight aggregates in a laboratory. Then the physical and mechanical properties of the synthesized aggregates were assessed. The result showed that the chemical composition of sludge in the water purification plants was within the appropriate range for manufacturing lightweight aggregate as proposed in the literature. The sintering test demonstrated that the particle density of aggregates from the ten types of water purification sludge were mostly less than 1.8 g/cm3. In addition, the dry unit weight, the organic impurity, the ignition loss, and other characteristics of synthesized aggregates met the requirement of CNS standards, while its water absorption and crushing strength also fulfilled the general commercial specifications. Therefore, reclamation of water purification sludge for production of lightweight aggregate is indeed feasible.

  7. Comparative Study of Aircraft Boarding Strategies Using Cellular Discrete Event Simulation

    Directory of Open Access Journals (Sweden)

    Shafagh Jafer

    2017-11-01

    Full Text Available Time is crucial in the airlines industry. Among all factors contributing to an aircraft turnaround time; passenger boarding delays is the most challenging one. Airlines do not have control over the behavior of passengers; thus, focusing their effort on reducing passenger boarding time through implementing efficient boarding strategies. In this work, we attempt to use cellular Discrete-Event System Specification (Cell-DEVS modeling and simulation to provide a comprehensive evaluation of aircraft boarding strategies. We have developed a simulation benchmark consisting of eight boarding strategies including Back-to-Front; Window Middle Aisle; Random; Zone Rotate; Reverse Pyramid; Optimal; Optimal Practical; and Efficient. Our simulation models are scalable and adaptive; providing a powerful analysis apparatus for investigating any existing or yet to be discovered boarding strategy. We explain the details of our models and present the results both visually and numerically to evaluate the eight implemented boarding strategies. We also compare our results with other studies that have used different modeling techniques; reporting nearly identical performance results. The simulations revealed that Window Middle Aisle provides the least boarding delay; with a small fraction of time difference compared to the optimal strategy. The results of this work could highly benefit the commercial airlines industry by optimizing and reducing passenger boarding delays.

  8. A feasibility study for a manufacturing technology deployment center

    Energy Technology Data Exchange (ETDEWEB)

    1994-10-31

    The Automation & Robotics Research Institute (ARRI) and the Texas Engineering Extension Service (TEEX) were funded by the U.S. Department of Energy to determine the feasibility of a regional industrial technology institute to be located at the Superconducting Super Collider (SSC) Central Facility in Waxahachie, Texas. In response to this opportunity, ARRI and TEEX teamed with the DOE Kansas City Plant (managed by Allied Signal, Inc.), Los Alamos National Laboratory (managed by the University of California), Vought Aircraft Company, National Center for Manufacturing Sciences (NCMS), SSC Laboratory, KPMG Peat Marwick, Dallas County Community College, Navarro Community College, Texas Department of Commerce (TDOC), Texas Manufacturing Assistance Center (TMAC), Oklahoma Center for the Advancement of Science and Technology, Arkansas Science and Technology Authority, Louisiana Productivity Center, and the NASA Mid-Continent Technology Transfer Center (MCTTC) to develop a series of options, perform the feasibility analysis and secure industrial reviews of the selected concepts. The final report for this study is presented in three sections: Executive Summary, Business Plan, and Technical Plan. The results from the analysis of the proposed concept support the recommendation of creating a regional technology alliance formed by the states of Texas, New Mexico, Oklahoma, Arkansas and Louisiana through the conversion of the SSC Central facility into a Manufacturing Technology Deployment Center (MTDC).

  9. Multiple Study of Case Involving Implementation of Lean Manufacturing

    Directory of Open Access Journals (Sweden)

    Delvio Venanzi

    2018-03-01

    Full Text Available This article aims to show some factors that can cause companies to succeed or fail in their attempts to use lean manufacturing, by performing a multiple case study which presents two successful cases and three conditions of failure, in a survey of five large companies, all belonging to the metal-mechanical sector, located in Campinas and Sorocaba, both in the state of São Paulo, Brazil. The data were collected using exploratory research between the periods of January 2013 and February 2015. The results show that successful cases of lean manufacturing implementation are the result of a more organized work environment, standardization of production and service areas, employee satisfaction, productivity results and quality of the final product. Unsuccessful deployments result from poor execution and faulty planning, that has no benefit and ultimately decrease the morale of its employees, creating more distrust and frustration directly influencing the results and productivity. In other words, lean manufacturing implementation requires hard and continuous work and these procedures should be aligned with the mission and goals of companies and mainly focus on the maintenance result by using tools to monitor and track the process systematically and also making investments to eliminate waste.

  10. A study on manufacturing and construction method of buffer

    International Nuclear Information System (INIS)

    Chijimatsu, Masakazu; Sugita, Yutaka; Amemiya, Kiyoshi

    1999-09-01

    As an engineered barrier system in the geological disposal of high-level waste, multibarrier system is considered. Multibarrier system consists of the vitrified waste, the overpack and the buffer. Bentonite is one of the potential material as the buffer because of its low water permeability, self-sealing properties, radionuclides adsorption and retardation properties, thermal conductivity, chemical buffering properties, overpack supporting properties, stress buffering properties, etc. In order to evaluate the functions of buffer, a lot of experiments has been conducted. The evaluations of these functions are based on the assumption that the buffer is emplaced or constructed in the disposal tunnel (or disposal pit) properly. Therefore, it is necessary to study on the manufacturing / construction method of buffer. As the manufacturing / construction technology of the buffer, the block installation method and in-situ compaction method, etc, are being investigated. The block installation method is to emplace the buffer blocks manufactured in advance at the ground facility, and construction processes of the block installation method at the underground will be simplified compared with the in-situ compaction method. On the other hand, the in-situ compaction method is to introduce the buffer material with specified water content into the disposal tunnel and to make the buffer with high density at the site using a compaction machine. In regard to the in-situ compaction method, it is necessary to investigate the optimum finished thickness of one layer because it is impossible to construct the buffer at one time. This report describes the results of compaction property test and the summary of the past investigation results in connection with the manufacturing / construction method. Then this report shows the construction method that will be feasible in the actual disposal site. (J.P.N.)

  11. Access through the Ages at an Elite Boarding School: A Case Study of Phillips Academy

    Science.gov (United States)

    Carney, Samantha

    2012-01-01

    This study is about access for low-income students at an elite boarding school. As "feeder schools" to elite colleges and universities, elite boarding schools play a significant role in determining which students will be in the upper class in America; however, little is known about the history of low-income students at these schools. The…

  12. Chattanooga Electric Power Board Case Study Distribution Automation

    Energy Technology Data Exchange (ETDEWEB)

    Glass, Jim [Chattanooga Electric Power Board (EPB), TN (United States); Melin, Alexander M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Starke, Michael R. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Ollis, Ben [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2016-10-01

    In 2009, the U.S. Department of Energy under the American Recovery and Reinvestment Act (ARRA) awarded a grant to the Chattanooga, Tennessee, Electric Power Board (EPB) as part of the Smart Grid Investment Grant Program. The grant had the objective “to accelerate the transformation of the nation’s electric grid by deploying smart grid technologies.” This funding award enabled EPB to expedite the original smart grid implementation schedule from an estimated 10-12 years to 2.5 years. With this funding, EPB invested heavily in distribution automation technologies including installing over 1,200 automated circuit switches and sensors on 171 circuits. For utilities considering a commitment to distribution automation, there are underlying questions such as the following: “What is the value?” and “What are the costs?” This case study attempts to answer these questions. The primary benefit of distribution automation is increased reliability or reduced power outage duration and frequency. Power outages directly impact customer economics by interfering with business functions. In the past, this economic driver has been difficult to effectively evaluate. However, as this case study demonstrates, tools and analysis techniques are now available. In this case study, the impact on customer costs associated with power outages before and after the implementation of distribution automation are compared. Two example evaluations are performed to demonstrate the benefits: 1) a savings baseline for customers under normal operations1 and 2) customer savings for a single severe weather event. Cost calculations for customer power outages are performed using the US Department of Energy (DOE) Interruption Cost Estimate (ICE) calculator2. This tool uses standard metrics associated with outages and the customers to calculate cost impact. The analysis shows that EPB customers have seen significant reliability improvements from the implementation of distribution automation. Under

  13. Big Data Analytics for Smart Manufacturing: Case Studies in Semiconductor Manufacturing

    Directory of Open Access Journals (Sweden)

    James Moyne

    2017-07-01

    Full Text Available Smart manufacturing (SM is a term generally applied to the improvement in manufacturing operations through integration of systems, linking of physical and cyber capabilities, and taking advantage of information including leveraging the big data evolution. SM adoption has been occurring unevenly across industries, thus there is an opportunity to look to other industries to determine solution and roadmap paths for industries such as biochemistry or biology. The big data evolution affords an opportunity for managing significantly larger amounts of information and acting on it with analytics for improved diagnostics and prognostics. The analytics approaches can be defined in terms of dimensions to understand their requirements and capabilities, and to determine technology gaps. The semiconductor manufacturing industry has been taking advantage of the big data and analytics evolution by improving existing capabilities such as fault detection, and supporting new capabilities such as predictive maintenance. For most of these capabilities: (1 data quality is the most important big data factor in delivering high quality solutions; and (2 incorporating subject matter expertise in analytics is often required for realizing effective on-line manufacturing solutions. In the future, an improved big data environment incorporating smart manufacturing concepts such as digital twin will further enable analytics; however, it is anticipated that the need for incorporating subject matter expertise in solution design will remain.

  14. A simulation study regarding different aircraft boarding strategies

    OpenAIRE

    Mas, Sílvia; Juan Pérez, Angel Alejandro; Arias, Pol; Fonseca Casas, Pau

    2013-01-01

    The airline industry is constantly subject to the search of new methods in order to increase efficiency, profitability, and customer satisfaction. Since airlines only generate revenue when their airplanes are on the air, the time they spend at the airports should be the shortest possible. Hence, the airplane turnaround time becomes a process which airlines pay special attention on. The boarding process has a very important role, since it is one of the significant elements of...

  15. Electrostatic Levitation for Studies of Additive Manufactured Materials

    Science.gov (United States)

    SanSoucie, Michael P.; Rogers, Jan R.; Tramel, Terri

    2014-01-01

    The electrostatic levitation (ESL) laboratory at NASA's Marshall Space Flight Center is a unique facility for investigators studying high temperature materials. The laboratory boasts two levitators in which samples can be levitated, heated, melted, undercooled, and resolidified. Electrostatic levitation minimizes gravitational effects and allows materials to be studied without contact with a container or instrumentation. The lab also has a high temperature emissivity measurement system, which provides normal spectral and normal total emissivity measurements at use temperature. The ESL lab has been instrumental in many pioneering materials investigations of thermophysical properties, e.g., creep measurements, solidification, triggered nucleation, and emissivity at high temperatures. Research in the ESL lab has already led to the development of advanced high temperature materials for aerospace applications, coatings for rocket nozzles, improved medical and industrial optics, metallic glasses, ablatives for reentry vehicles, and materials with memory. Modeling of additive manufacturing materials processing is necessary for the study of their resulting materials properties. In addition, the modeling of the selective laser melting processes and its materials property predictions are also underway. Unfortunately, there is very little data for the properties of these materials, especially of the materials in the liquid state. Some method to measure thermophysical properties of additive manufacturing materials is necessary. The ESL lab is ideal for these studies. The lab can provide surface tension and viscosity of molten materials, density measurements, emissivity measurements, and even creep strength measurements. The ESL lab can also determine melting temperature, surface temperatures, and phase transition temperatures of additive manufactured materials. This presentation will provide background on the ESL lab and its capabilities, provide an approach to using the ESL

  16. Defense Business Board

    Science.gov (United States)

    Skip to main content (Press Enter). Toggle navigation Defense Business Board Search Search Defense Business Board: Search Search Defense Business Board: Search Defense Business Board Business Excellence in Defense of the Nation Defense Business Board Home Charter Members Meetings Studies Contact Us The Defense

  17. A study of liberation and separation process of metals from printed circuit boards (PCBs) scrap

    International Nuclear Information System (INIS)

    Noorliyana, H.A.; Zaheruddin, K.; Mohd Fazlul Bari; M. Sri Asliza; Nurhidayah, A.Z.; Kamarudin, H.

    2009-01-01

    Since the metallic elements are covered with or encapsulated by various plastic or ceramic materials on printed circuit boards, a mechanical pre-treatment process allowing their liberation and separation is first needed in order to facilitate their efficient extraction with hydrometallurgy route. Even though many studies have been performed on the mechanical pre-treatment processing for the liberation and separation of the metallic components of printed circuit boards scrap, further studies are required to pave the way for efficient recycling of waste printed circuit boards through a combination of mechanical pre-treatment and hydrometallurgical technology. In this work, a fundamental study has been carried out on the mechanical pre-treatment that is necessary to recover metallic concentrates from printed circuit boards scraps. The most important problem is to separate or release particles from the associated gangue minerals at the possible liberation particle size. The distribution of metallic elements has been also investigated in relation to the particle size of the milled printed circuit boards. The samples of printed circuit boards were separated into the magnetic and non-magnetic fractions by Rare-earth Roll Magnetic separator. Thereafter, the magnetic and non-magnetic fractions were separated to heavy fraction (metallic elements) and light fraction (plastic) by Mozley Laboratory Table Separator. The recovery ratios and the evaluation of the metallic concentrates recovered by each separation process were also investigated. This study is expected to provide useful data for the efficient mechanical separation of metallic components from printed circuit boards scraps. (author)

  18. Hearing protection use in manufacturing workers: A qualitative study

    Directory of Open Access Journals (Sweden)

    Ravi K Reddy

    2012-01-01

    Full Text Available Occupational noise is a significant contributor to disabling hearing loss worldwide. Noise-induced hearing loss (NIHL has resulted in huge human and economic consequences costing New Zealand approximately $53M annually and rising. A high proportion of hearing loss claims are made by workers in the manufacturing sector. Hearing protection devices (HPDs are used together with engineering and administrative controls to minimize noise exposure and to prevent hearing loss. Unfortunately, inconsistent and improper use of HPDs has hindered efforts to prevent NIHL. The purpose of this study was to understand the factors that influence the use of HPDs amongst a group of manufacturing workers in New Zealand. A purposive sample of twenty-five workers was recruited to take part in semi-structured interviews. The open-ended questions were aimed at exploring the participants′ knowledge, attitude, beliefs, and behavior towards noise and HPDs. The data were analyzed using conventional content analysis and key themes emerged in relation to HPD use. Themes that emerged from the interviews either supported good hearing protection behavior or acted as barriers against it. Five major themes, (perception of noise, hearing preservation, reluctance to use HPDs, workplace interaction, and value of hearing and sub-themes described various factors that influence hearing protection use. Both personal and environmental factors influence the use of HPDs. Based on this study, personal and environmental factors need to be targeted for further research using ecological models to develop interventions that promote HPD use amongst workers.

  19. Additive Manufacturing Materials Study for Gaseous Radiation Detection

    Energy Technology Data Exchange (ETDEWEB)

    Steer, C.A.; Durose, A.; Boakes, J. [AWE Aldermaston, Reading, Berkshire, RG7 4PR (United Kingdom)

    2015-07-01

    Additive manufacturing (AM) techniques may lead to improvements in many areas of radiation detector construction; notably the rapid manufacturing time allows for a reduced time between prototype iterations. The additive nature of the technique results in a granular microstructure which may be permeable to ingress by atmospheric gases and make it unsuitable for gaseous radiation detector development. In this study we consider the application of AM to the construction of enclosures and frames for wire-based gaseous radiation tracking detectors. We have focussed on oxygen impurity ingress as a measure of the permeability of the enclosure, and the gas charging and discharging curves of several simplistic enclosure shapes are reported. A prototype wire-frame is also presented to examine structural strength and positional accuracy of an AM produced frame. We lastly discuss the implications of this study for AM based radiation detection technology as a diagnostic tool for incident response scenarios, such as the interrogation of a suspect radiation-emitting package. (authors)

  20. Additive Manufacturing Materials Study for Gaseous Radiation Detection

    International Nuclear Information System (INIS)

    Steer, C.A.; Durose, A.; Boakes, J.

    2015-01-01

    Additive manufacturing (AM) techniques may lead to improvements in many areas of radiation detector construction; notably the rapid manufacturing time allows for a reduced time between prototype iterations. The additive nature of the technique results in a granular microstructure which may be permeable to ingress by atmospheric gases and make it unsuitable for gaseous radiation detector development. In this study we consider the application of AM to the construction of enclosures and frames for wire-based gaseous radiation tracking detectors. We have focussed on oxygen impurity ingress as a measure of the permeability of the enclosure, and the gas charging and discharging curves of several simplistic enclosure shapes are reported. A prototype wire-frame is also presented to examine structural strength and positional accuracy of an AM produced frame. We lastly discuss the implications of this study for AM based radiation detection technology as a diagnostic tool for incident response scenarios, such as the interrogation of a suspect radiation-emitting package. (authors)

  1. Final report to the Atomic Energy Control Board on project management capabilities using NAOP as a case study

    International Nuclear Information System (INIS)

    Masters, P.

    1998-01-01

    The purpose of this report is to identify practices of the Atomic Energy Control Board that support or detract from the implementation of collaborative cross-functional project management and to recommend ways and means of increasing the Board's ability to respond to projects. Ontario Hydro's Nuclear Asset Optimization Program (NAOP) and the Board's response to that program form the basis of a case study for the purposes of this report. Issues examined include: Whether the Board follows a logical project management framework when it addresses projects such as the NAOP; where the Board exhibits good practices in addressing project such as the NAOP; and where the Board needs to develop better practices

  2. Value Chain Model for Steel Manufacturing Sector: A Case Study

    OpenAIRE

    S G Acharyulu; K Venkata Subbaiah; K Narayana Rao

    2018-01-01

    Michael E Porter developed a value chain model for manufacturing sector with five primary activities and four supporting activities. The value chain model developed by Porter is extended to a steel manufacturing sector due to expansions of steel plants has become a continual process for their growth and survival. In this paper a value chain model for steel manufacturing sector is developed considering five primary activities and six support activities.

  3. Industrial engineering studies for the manufacture of the ITER PF coils

    International Nuclear Information System (INIS)

    Libeyre, P.; Decool, P.; Guerin, O.; Perrella, M.; Bourquard, A.

    2007-01-01

    Industrial studies have been carried out in Europe to prepare the manufacture of the five poloidal field (PF) coils, which will be manufactured on the ITER site. A first study, carried out by Ansaldo Superconduttori, addressed the manufacturing sequence, assuming the manufacture of the PF coils inside the two buildings which will further host the cryogenic system. A second study, carried out by Alstom investigated how to achieve the manufacture of some crucial points. A new layout of the manufacturing line was proposed, aiming at manufacture of the PF2-6 coils within 36 months. A recent study performed by Alstom, assumes the manufacture of the PF coils in a single dedicated building, releasing so the constraint of meeting the deadline fixed in ITER reference scheme by the starting point of installation of the cryogenic components

  4. Social manufacturing

    OpenAIRE

    Hamalainen, Markko; Karjalainen, Jesse

    2017-01-01

    New business models harnessing the power of individuals have already revolutionized service industries and digital content production. In this study, we investigate whether a similar phenomenon is taking place in manufacturing industries. We start by conceptually defining two distinct forms of firm-individual collaboration in manufacturing industries: (1) social cloud manufacturing, in which firms outsource manufacturing to individuals, and (2) social platform manufacturing, in which firms pr...

  5. BOMAB phantom manufacturing quality assurance study using Monte Carlo computations

    International Nuclear Information System (INIS)

    Mallett, M.W.

    1994-01-01

    Monte Carlo calculations have been performed to assess the importance of and quantify quality assurance protocols in the manufacturing of the Bottle-Manikin-Absorption (BOMAB) phantom for calibrating in vivo measurement systems. The parameters characterizing the BOMAB phantom that were examined included height, fill volume, fill material density, wall thickness, and source concentration. Transport simulation was performed for monoenergetic photon sources of 0.200, 0.662, and 1,460 MeV. A linear response was observed in the photon current exiting the exterior surface of the BOMAB phantom due to variations in these parameters. Sensitivity studies were also performed for an in vivo system in operation at the Pacific Northwest Laboratories in Richland, WA. Variations in detector current for this in vivo system are reported for changes in the BOMAB phantom parameters studied here. Physical justifications for the observed results are also discussed

  6. Murky Projects and Uneven Information Policies: A Case Study of the Psychological Strategy Board and CIA

    Directory of Open Access Journals (Sweden)

    Susan Maret

    2018-02-01

    Full Text Available This case study discusses the Truman and Eisenhower administration's (1951-1953 short-lived Psychological Strategy Board (PSB. Through the lens of declassified documents, the article recounts the history and activities of the Board, including its relationship with the Central Intelligence Agency (CIA and clandestine projects that involve human experimentation. Primary documents of the period suggest that institutional secrecy, coupled with inconsistent information policies, largely shielded CIA's BLUEBIRD, ARTICHOKE, and MKULTRA from the Board. This subject has not been previously reported in the research literature, and supplements existing historical understanding of the PSB's mission under the broad umbrella of psychological warfare.

  7. Does the board of directors affect cash holdings? A study of French listed firms

    OpenAIRE

    Derouiche, Imen; Boubaker, Sabri; Nguyen, Duc Khuong

    2015-01-01

    Prior studies show that agency conflicts are important in explaining corporate financial policies and that the board of directors is central to corporate governance. In this study, we examine the role of this governing body in the accumulation of cash reserves. Using a sample of 597 French listed firms during 2001–2007, we find that firms with boards deemed to be effective in mitigating agency problems—that is, those appointing independent directors and splitting chief executive officer and c...

  8. Life cycle assessment as a tool to promote sustainable thermowood boards: a portuguese case study

    OpenAIRE

    Ferreira, J.; Esteves, B.; Ribeiro Nunes, L. M.; Domingos, I.

    2015-01-01

    The aim of the present work was to conduct a Life Cycle Assessment study of thermally-modified Atlanticwood® pine boards based on real data provided by the Santos & Santos Madeiras company. Atlanticwood® pine boards have several applications, but are mainly used for exterior decking and the cladding facades of buildings. The LCA study was conducted based on the ISO 14040/44 standard and PCR “Product Category Rules for preparing an environmental product declaration for Constr...

  9. Study on Measurement of Advanced Manufacturing: Case by China

    Directory of Open Access Journals (Sweden)

    She Jinghuai

    2017-01-01

    Full Text Available This article has built a system of China's Advanced Manufacturing measurement indicators. By applying the datum from 2004 to 2013, we estimate the level of development and current status of China’s Advanced Manufacturing (AM, and evaluate the measurement results by establishing Hierarchical Linear Model (HLM. We confirmed that China's Advanced Manufacturing is in the rapid development trend. And due to the difference of initial conditions in Advanced Manufacturing development there is a greater imbalance. In contrast, a region with poor initial condition of has a relatively fast development speed.

  10. Board characteristics: An empirical study of listed companies in Malaysia

    Directory of Open Access Journals (Sweden)

    Cyril Ponnu

    2008-01-01

    Full Text Available This paper investigates five important characteristics of board committee members of various committees in public listed companies in Malaysia. The five characteristics include director type, tenure, age, internal activity and external activity. Sample of 111 listed companies were collected using simple random five sampling of the annual reports based on financial year 2005 posted online. Sample includes 6 committees with the highest frequency of occurrences – audit, remuneration, nomination, stock option, risk management and executive. Data collected was analyzed using tests of correlation, analysis of variance and regression. The results, however, do not support the hypothesis that members of committees tend to be non-executive directors, older, have longer tenure and show greater evidence of internal and external activities.

  11. Numerical and Experimental Study of Ti6Al4V Components Manufactured Using Powder Bed Fusion Additive Manufacturing

    Science.gov (United States)

    Zielinski, Jonas; Mindt, Hans-Wilfried; Düchting, Jan; Schleifenbaum, Johannes Henrich; Megahed, Mustafa

    2017-12-01

    Powder bed fusion additive manufacturing of titanium alloys is an interesting manufacturing route for many applications requiring high material strength combined with geometric complexity. Managing powder bed fusion challenges, including porosity, surface finish, distortions and residual stresses of as-built material, is the key to bringing the advantages of this process to production main stream. This paper discusses the application of experimental and numerical analysis towards optimizing the manufacturing process of a demonstration component. Powder characterization including assessment of the reusability, assessment of material consolidation and process window optimization is pursued prior to applying the identified optima to study the distortion and residual stresses of the demonstrator. Comparisons of numerical predictions with measurements show good correlations along the complete numerical chain.

  12. Recommended Protocol for Round Robin Studies in Additive Manufacturing

    Science.gov (United States)

    Moylan, Shawn; Brown, Christopher U.; Slotwinski, John

    2016-01-01

    One way to improve confidence and encourage proliferation of additive manufacturing (AM) technologies and parts is by generating more high quality data describing the performance of AM processes and parts. Many in the AM community see round robin studies as a way to generate large data sets while distributing the cost among the participants, thereby reducing the cost to individual users. The National Institute of Standards and Technology (NIST) has conducted and participated in several of these AM round robin studies. While the results of these studies are interesting and informative, many of the lessons learned in conducting these studies concern the logistics and methods of the study and unique issues presented by AM. Existing standards for conducting interlaboratory studies of measurement methods, along with NIST’s experience, form the basis for recommended protocols for conducting AM round robin studies. The role of round robin studies in AM qualification, some of the limitations of round robin studies, and the potential benefit of less formal collaborative experiments where multiple factors, AM machine being only one, are varied simultaneously are also discussed. PMID:27274602

  13. Empirical study on entropy models of cellular manufacturing systems

    Institute of Scientific and Technical Information of China (English)

    Zhifeng Zhang; Renbin Xiao

    2009-01-01

    From the theoretical point of view,the states of manufacturing resources can be monitored and assessed through the amount of information needed to describe their technological structure and operational state.The amount of information needed to describe cellular manufacturing systems is investigated by two measures:the structural entropy and the operational entropy.Based on the Shannon entropy,the models of the structural entropy and the operational entropy of cellular manufacturing systems are developed,and the cognizance of the states of manufacturing resources is also illustrated.Scheduling is introduced to measure the entropy models of cellular manufacturing systems,and the feasible concepts of maximum schedule horizon and schedule adherence are advanced to quantitatively evaluate the effectiveness of schedules.Finally,an example is used to demonstrate the validity of the proposed methodology.

  14. The impact of inpatient boarding on ED efficiency: a discrete-event simulation study.

    Science.gov (United States)

    Bair, Aaron E; Song, Wheyming T; Chen, Yi-Chun; Morris, Beth A

    2010-10-01

    In this study, a discrete-event simulation approach was used to model Emergency Department's (ED) patient flow to investigate the effect of inpatient boarding on the ED efficiency in terms of the National Emergency Department Crowding Scale (NEDOCS) score and the rate of patients who leave without being seen (LWBS). The decision variable in this model was the boarder-released-ratio defined as the ratio of admitted patients whose boarding time is zero to all admitted patients. Our analysis shows that the Overcrowded(+) (a NEDOCS score over 100) ratio decreased from 88.4% to 50.4%, and the rate of LWBS patients decreased from 10.8% to 8.4% when the boarder-released-ratio changed from 0% to 100%. These results show that inpatient boarding significantly impacts both the NEDOCS score and the rate of LWBS patient and this analysis provides a quantification of the impact of boarding on emergency department patient crowding.

  15. Study on manufacturing technology of fuel guide tube using HANA alloys

    International Nuclear Information System (INIS)

    Kim, Hyungil; Jung, Yangil; Park, Dongjun; Park, Jeongyong; Kim, Ilhyun; Choi, Byungkwon; Jeong, Yonghwan; Park, Sangyoon

    2013-04-01

    This research was focused on the study for the manufacturing technology of HANA alloys to crease the corrosion resistance of 30% as well as the to improve the strength of 10% when compared to the commercial zirconium alloys. The new manufacturing concept having higher corrosion resistance and strength than commercial alloy performance can be obtained in this research. This result was transferred to the KNF and, that will be commercialized. This research result can be summarized like this; Ο Parameter study to increase formability of HANA alloy tube - Study on alloy element and heat-treatment effect - Study on texture development mechanism - Study on final annealing effect Ο Out-of-pile performance evaluation of HANA alloy tube - Corrosion performance evaluation of HANA alloy manufactured at KNF - Mechanical performance evaluation of HANA alloy manufactured at KNF - Recrystallization behavior evaluation of HANA alloy manufactured at KNF - Texture characterization of HANA alloy manufactured at KNF - Microstructure characterization of HANA alloy manufactured at KNF Ο Manufacturing guideline setup to increase formability of HANA alloy tube - Manufacturing guideline setup to decrease surface defect - Manufacturing guideline setup to increase strength and corrosion resistance - Manufacturing guideline setup to control texture

  16. Thermal comfort study of plastics manufacturing industry in converting process

    Directory of Open Access Journals (Sweden)

    Sugiono Sugiono

    2017-09-01

    Full Text Available Thermal comfort is one of ergonomics factors that can create a significant impact to workers performance. For a better thermal comfort, several environment factors (air temperature, wind speed and relative humidity should be considered in this research. The object of the study is a building for converting process of plastics manufacturing industry located in Malang, Indonesia. The maximum air temperature inside the building can reach as high as 36°C. The result of this study shows that heat stress is dominantly caused by heat source from machine and wall building. The computational fluid dynamics (CFD simulation is used to show the air characteristic through inside the building. By using the CFD simulation, some scenarios of solution are successfully presented. Employees thermal comfort was investigated based on predicted mean vote model (PMV and predicted percentage of dissatisfied model (PPD. Existing condition gives PMV in range from 1.83 to 2.82 and PPD in range from 68.9 to 98%. Meanwhile, modification of ventilation and replacing ceiling material from clear glass into reflective clear glass gave significant impact to reduce PMV into range from 1.63 to 2.18 and PPD into range from 58.2 to 84.2%. In sort, new design converting building process has more comfortable for workers.

  17. Operation and profits of energy boards. A study of the basis of municipal business activities and the equitableness of the profits of municipal energy boards

    International Nuclear Information System (INIS)

    Karhu, V.; Nissinen, T.; Valkama, P.

    1999-01-01

    The objective of the empirical part of the study (Chapter 6) is to evaluate the equitableness of profits on capital invested of the 16 municipal energy boards selected for this study and, at the same time, to create a general evaluation basis for equity decisions made by the authorities case by case. In this part of the study, answers are sought for the following questions: (1) how has the economic situation of the energy boards studied been recently developing based on various economic parameters? (2) have there been differences in the returns and profitability of energy boards operating as public utilities or energy boards operating in company form? (3) what kind of a price level the energy boards studied have maintained in relation to the national averages of this field? (4) is a city in a weaker economic position more tempted to require higher profits on capital invested than a city with a sound economic basis? (5) how high profits on capital invested can be considered reasonable for the whole energy board and particularly for a network business holding a monopoly? The structure of the study is as follows. Chapter 2 contains a brief description of the energy boards selected for this study and of the economic situation of the cities owning them. The theoretical part of the study is included in Chapter 3 'Municipal Self-Government and Business'. It analyses rather deeply the terminology of the municipal business, norm basis, steering of actions, restructuring of companies into business profit centres and privatisation, as well as application of the Act on Restrictions on Competition from the standpoint of a municipal self-government. Chapter 4 deals with the establishment of energy board activity, the legal basis and the criteria for pricing electricity, network services and district heat. Chapter 5 examines the Act on Restrictions on Competition as a regulator of the energy board activities. After this, there are the presentations of the research results of the

  18. A Weldability Study of Structural Materials for Manufacturing Bearing Separators

    Directory of Open Access Journals (Sweden)

    V. S. Drizhov

    2016-01-01

    Full Text Available The aim is to analyze the possibility for using the 08YUT steel separator tape to manufacture separators, which are to be further applied to the bearing assembly via projection welding.Reliability of rolling bearings is determined by many factors such as surface quality of balls and rings and assembly precision, including the seal strength of hemiseparators.The technology based on the double-pulsed condenser projection welding belongs to one of the most efficient technologies to provide the assembly of bearing, for it allows welding of separator simultaneously in all currents. The paper shows that the required condition to assure high reliability of the bearing is induastial development and implementation of an effective and positive quality control system, which will reduce the probability of damages occurring both when welding and in the course of operation.The work used the static tensile test methods, as well as metallographic analysis.The experimental study used the 08YUT steel hemiseparators. A tape thickness of the hemiseparators was of 1.5mm. The number of simultaneously welded points were 8. The experimental studies of the metal damage of welding joints of the the 08YUT steel separator have shown that with a wide range of the changing welding current and compressed electrode force the quality assurance of welding points at the parent metal level could not be retrieved.The metallographic analysis of the metal damage nature of a welded joint revealed that between the atoms on the surfaces of hemiseparators there are no strong bonds – a bond was formed in the contact zone. This phenomenon leads to reduced tensile seal strength.The study has shown that aluminum and titanium added to the low-carbon steel in order to have a more fine-grained metal structure has a negative effect on the quality of welded joint via projection welding.

  19. Education Unit Transformation for Maintain Its Existence in Islamic Boarding School (Multi-Case Study on Tebuireng Islamic Boarding School, Gading Islamic Boarding School Malang, and Sidogiri Islamic Boarding School Pasuruan)

    Science.gov (United States)

    Busyairi AS, M.

    2017-01-01

    Islamic Boarding School which serves as native Islamic education institution is a continuation of education tradition grown strongly in Islamization history in unitary nation Republic of Indonesia. The education of Islamic Boarding School is also a sub-system of National Education with the purpose to make intelligent national life, to make…

  20. An exploratory study of boarding home sanctions and compliance in Washington State.

    Science.gov (United States)

    Graf Schaffner, Mindy L

    2011-01-01

    States vary in enforcement systems that monitor the quality of care in residential boarding homes. The growing number of people seeking long-term care services in boarding homes requires regulatory systems that are effective in quality assurance enforcement. This 6 year retrospective study describes the characteristics of 601 sanctioned and nonsanctioned homes in the state of Washington and evaluates the effectiveness of enforcement actions such as intermediate sanctions on future boarding home compliance. The intermediate sanctions evaluated are stop placement of admissions, civil fines, and conditions placed on licenses. Boarding homes that were sanctioned tended to be homes that were for-profit and had governmental contracts for Medicaid services. Homes that remained sanctioned throughout the 6 year study tended to be homes that were individual ownership corporations, had smaller numbers of licensed beds, and did not provide nursing services. Intermediate sanctions were found to vary in effectiveness. Conditions placed on licenses were the most effective intermediate sanction, and civil fines the least effective. Higher citation numbers and the most severe level of complaint types were found to be predictors of becoming a sanctioned boarding home. Copyright © 2011 Elsevier Inc. All rights reserved.

  1. A study on the effect of board of directors on the rate of corporate transparency

    Directory of Open Access Journals (Sweden)

    Iman Rezaei

    2012-10-01

    Full Text Available The main target of this study is to consider the effect of the combination of board of directors on the corporate transparency in some companies among selected ones in Tehran Stock Exchange Market over the period of 2007- 2010. In this research, the combination of board of directors is selected among some factors of corporate transparency such as structure of ownership and the rights of owners, financial information and statistics and structure and combination of board of directors and managers as a sub-indicator for corporate governance. Linear regression statistical method is used to test hypotheses of study. The size of α is considered as 5% and hypotheses are accepted or rejected by means of Durbin-Watson and Clemogrov-Smirnov tests and by comparing p-value with α. At last, by means of forward regression method, the effect of control variables is considered over each hypothesis. The results show that the members of board of directors have no effect on partnership transparency, but effect on financial data and information and structure and combination of board of directors.

  2. Impact of Company Size on Manufacturing Improvement Practices: An empirical study

    International Nuclear Information System (INIS)

    Syan, C S; Ramoutar, K

    2014-01-01

    There is a constant search for ways to achieve a competitive advantage through new manufacturing techniques. Best performing manufacturing companies tend to use world-class manufacturing (WCM) practices. Although the last few years have witnessed phenomenal growth in the use of WCM techniques, their effectiveness is not well understood specifically in the context of less developed countries. This paper presents an empirical study to investigate the impact of company size on improving manufacturing performance in manufacturing organizations based in Trinidad and Tobago (T and T). Empirical data were collected via a questionnaire survey which was send to 218 manufacturing firms in T and T. Five different company sizes and seven different industry sectors were studied. The analysis of survey data was performed with the aid of Statistical Package for Social Sciences (SPSS) software. The study signified facilitating and impeding factors towards improving manufacturing performance. Their relative impact/importance is dependent on varying company size and industry sectors. Findings indicate that T and T manufacturers are still practicing traditional approaches, when compared with world class manufacturers. In the majority of organizations, these practices were not 100% implemented even though they started the implementation process more than 5 years ago. The findings provided some insights in formulating more optimal operational strategies, and later develop action plans towards more effective implementation of WCM in T and T manufacturers

  3. Impact of Company Size on Manufacturing Improvement Practices: An empirical study

    Science.gov (United States)

    Syan, C. S.; Ramoutar, K.

    2014-07-01

    There is a constant search for ways to achieve a competitive advantage through new manufacturing techniques. Best performing manufacturing companies tend to use world-class manufacturing (WCM) practices. Although the last few years have witnessed phenomenal growth in the use of WCM techniques, their effectiveness is not well understood specifically in the context of less developed countries. This paper presents an empirical study to investigate the impact of company size on improving manufacturing performance in manufacturing organizations based in Trinidad and Tobago (T&T). Empirical data were collected via a questionnaire survey which was send to 218 manufacturing firms in T&T. Five different company sizes and seven different industry sectors were studied. The analysis of survey data was performed with the aid of Statistical Package for Social Sciences (SPSS) software. The study signified facilitating and impeding factors towards improving manufacturing performance. Their relative impact/importance is dependent on varying company size and industry sectors. Findings indicate that T&T manufacturers are still practicing traditional approaches, when compared with world class manufacturers. In the majority of organizations, these practices were not 100% implemented even though they started the implementation process more than 5 years ago. The findings provided some insights in formulating more optimal operational strategies, and later develop action plans towards more effective implementation of WCM in T&T manufacturers.

  4. An Empirical study on the competitiveness and innovation in four sectors of the Turkish manufacturing industry

    OpenAIRE

    Ulusoy, Gündüz; Ulusoy, Gunduz; Çetindamar, Dilek; Cetindamar, Dilek; Yeğenoğlu, Hande; Yegenoglu, Hande; Bulut, Çağrı; Bulut, Cagri

    2007-01-01

    In this paper, we report on some of the results of the Innovations in Manufacturing Industries in Turkey Study (IMITS). This study is an empirical investigation into the innovation performance and competitive strategies of manufacturing firms in Turkey. The data was gathered in nine different cities in Turkey during the period August 2004 – January 2005. The survey was conducted through face-to-face interviews due to the complex nature of the survey and was implemented in 135 manufacturing fi...

  5. Study of the Incentive Program for Washington's National Board Certified Teachers

    Science.gov (United States)

    Plecki, Margaret L.; Elfers, Ana M.; St. John, Elise; Finster, Matthew; Emry, Terese; Nishida, Nasue; Harmon, Jeanne

    2010-01-01

    This study examines the impact of Washington state's incentives for teachers to attain National Board Certification and to work in challenging schools. Using surveys and secondary analyses of state databases, we examine the workforce both prior to and following recent changes in the incentive program. The study considers the nature of National…

  6. Results from a National Study of Social Workers Sanctioned by State Licensing Boards

    Science.gov (United States)

    Boland-Prom, Kim W.

    2009-01-01

    This article presents the results of a descriptive study, synthesizing the reports of 27 state regulatory boards about their actions against certified and licensed social workers (N = 874) during the period of 1999 to 2004. The purpose of this study was to examine the unprofessional behavior of certified and licensed social workers, the results of…

  7. A cross-sectional study of emergency department boarding practices in the United States.

    Science.gov (United States)

    Pitts, Stephen R; Vaughns, Frances L; Gautreau, Marc A; Cogdell, Matthew W; Meisel, Zachary

    2014-05-01

    The median emergency department (ED) boarding time for admitted patients has been a nationally reportable core measure that now also affects ED accreditation and reimbursement. However, no direct national probability samples of ED boarding data have been available to guide this policy until now. The authors studied new National Hospital Ambulatory Medical Care Survey (NHAMCS) survey items to establish baseline values, to generate hypotheses for future research, and to help improve survey quality in the future. This was a cross-sectional, multistage, stratified annual analysis of EDs and ED visits from the National Hospital Ambulatory Medical Care Survey public use files from 2007 to 2010, a total of 139,502 visit records. These data represent the only national measure of ED boarding. The main outcome of interest was boarding duration for individual patient visits. Data analyses accounted for complex sampling design. The national median boarding time was 79 minutes, with an interquartile range of 36 to 145 minutes. The prevalence of boarding for more than 2 hours among admitted patients was 32% (95% confidence interval [CI] = 30% to 35%). Average ED volume, occupancy, acuity, and hospital admission rates increased abruptly from the second to the third quartile of median boarding duration. The half of hospitals with the longest median boarding times accounted for 73% of ED visits and 79% of ED hospitalizations nationally. Thirty-nine percent of EDs (95% CI = 32% to 46%) reported never holding patients for more than 2 hours, but visit-level analysis at these EDs found that 21% of admissions did in fact stay in the ED over 2 hours. Only 19% of EDs (95% CI = 16% to 22%) used a strategy of moving admitted patients to alternative sites in the hospital during crowded times. In this national survey, ED boarding of admitted patients disproportionately affects hospitals with higher ED volumes, which also see sicker patients who wait longer to be seen, but not hospitals with

  8. AHP 44: BILINGUAL EDUCATION IN AMDO - A CASE STUDY OF KHRI KA NATIONALITIES BOARDING SCHOOL

    Directory of Open Access Journals (Sweden)

    Tshe dpal rdo rje ཚེ་དཔལ་རྡོ་རྗེ། (Caihuan Duojie 才还多杰

    2017-02-01

    Full Text Available The state sponsored education of Tibetan children in Khri ka (Guide County, Mtsho lho (Hainan Tibetan Autonomous Prefecture, Mtsho sngon (Qinghai Province, China, using Khri ka Nationalities Boarding School as a case study, is described. School history, the government rationale for closing village-based Tibetan primary schools, and the nationalities boarding schools operating in Khri ka in 2015 are introduced. Detailed descriptions of teachers; students; instructional materials; classes; language use; rules; punishments; home visiting; communication between students, parents, and teachers; school reports to the local authorities; and official local supervision and evaluation of Khri ka Nationalities Boarding School are also provided. An overall evaluation of this school concludes the paper.

  9. Panel Board From Coconut Fibre And Pet Bottle

    Science.gov (United States)

    Ngadiman, Norhayati; Kaamin, Masiri; Abd. Kadir, Aslila; Sahat, Suhaila; Zaini, Aziza; Raihana Nor Zentan, Siti; Ain Ahmad, Nur; Amran, Wan Haizatul Aisyhah Wan

    2018-03-01

    The rate of global deforestation and its impact on the environment has led particle board manufacture to search for alternative feedstock, especially in countries where wood is less available compared to other cellulosic natural product. Based on the properties of coconut fibre and PET bottle, these two materials can be recycle as raw material for manufacture of panel board. As for this study, the coconut fibre were used as the filler and PET bottle as outer lining of the panel board. Two types of coconut fibre were used which are grinding and un-grinding coconut fibre. At first, the coconut fibre are undergoes softening, grinding, drying and sieving process, while PET bottle was cleaning, shredding, sieving before compacted using hydraulic hot press machine. There are four types of testing that been carried out which are swelling, water absorption, Modulus of Elasticity (MOE) and Modulus of Rupture (MOR). The result show the conventional board has the highest value for MOE test, so it's indicate that the conventional board is less strength from the coconut fibre board. As for water absorption test, the average water absorption of coconut fibre based panel board is less than conventional board. Overall, the coconut fibre board is better than conventional panel board because coconut fibre board are less swelling, has low water absorption, high modulus of rupture and low modulus of elasticity. Based on the finding, this coconut fibre panel board has potential as a stronger and long-lasting panel board than the conventional board in the market. Other than that, the panel also have their own aesthetic value since the recycled plastic bottle used as outer lining is colourful and giving aesthetic value.

  10. Panel Board From Coconut Fibre And Pet Bottle

    Directory of Open Access Journals (Sweden)

    Ngadiman Norhayati

    2018-01-01

    Full Text Available The rate of global deforestation and its impact on the environment has led particle board manufacture to search for alternative feedstock, especially in countries where wood is less available compared to other cellulosic natural product. Based on the properties of coconut fibre and PET bottle, these two materials can be recycle as raw material for manufacture of panel board. As for this study, the coconut fibre were used as the filler and PET bottle as outer lining of the panel board. Two types of coconut fibre were used which are grinding and un-grinding coconut fibre. At first, the coconut fibre are undergoes softening, grinding, drying and sieving process, while PET bottle was cleaning, shredding, sieving before compacted using hydraulic hot press machine. There are four types of testing that been carried out which are swelling, water absorption, Modulus of Elasticity (MOE and Modulus of Rupture (MOR. The result show the conventional board has the highest value for MOE test, so it’s indicate that the conventional board is less strength from the coconut fibre board. As for water absorption test, the average water absorption of coconut fibre based panel board is less than conventional board. Overall, the coconut fibre board is better than conventional panel board because coconut fibre board are less swelling, has low water absorption, high modulus of rupture and low modulus of elasticity. Based on the finding, this coconut fibre panel board has potential as a stronger and long-lasting panel board than the conventional board in the market. Other than that, the panel also have their own aesthetic value since the recycled plastic bottle used as outer lining is colourful and giving aesthetic value.

  11. Defense Science Board Summer Study on Strategic Surprise

    Science.gov (United States)

    2015-07-01

    actions and hedges against changing priorities. The study focused on potential regrets in eight areas and provides recommendations to avoid ... avoid   potential  regrets  in 2024.  A Changing Context for Operations  The study explored current and future operational contexts. The study defined...hedge against these and similar surprises—and to  avoid   regretting  actions or lack  of action taken today—the study evaluated several key mission and

  12. Air crew exposure on board a subsonic aircraft studied with complex dosimetric sets

    International Nuclear Information System (INIS)

    Spurny, F.; Votockova, I.; Bottollier-Depois, J.F.

    1996-01-01

    Radiation fields on board a subsonic aircraft have been studied using a complex set of measuring instruments i.e. tissue equivalent proportional counter (TEPC), neutron rem-meter, environmental radiation dose rate meter, thermoluminescent detectors (TLDs), track etch detectors (TEDs) and bubble damage neutron detectors (BDNDs). The measurements have been realised on board the Airbus A310-300 during the flights Prague-Montreal and Montreal-Prague, in February 1995. The results obtained are presented, analysed and discussed both from the point of view of the detector responses and the general exposure levels. (authors). 23 refs., 1 fig., 4 tabs

  13. A Study of the Impact of the Lack of a Cost Accounting Standards Board.

    Science.gov (United States)

    1987-06-01

    California 00 ,: SE P 9 7 THESIS SE& A STUDY OF THE IMPACT OF THE LACK OF A COST ACCOUNTING STANDARDS BOARD by James F. Sumner, III June 1987 Thesis...O’ATON COSA1. CODES 16 SuB,*CT j’J.45 Comr~nue n- p.ono ol neeeterV ani denltiy by flO(k f1LrmbCr) E,) ROUP StA IRucost accounting , cost accounting ...thesis has two purposes. First, it attempts to determine whether the absence of the Cost Accounting Standards Board (CASB) has given rise to any areas

  14. The Impact of Inpatient Boarding on ED Efficiency: A Discrete-Event Simulation Study

    OpenAIRE

    Bair, Aaron E.; Song, Wheyming T.; Chen, Yi-Chun; Morris, Beth A.

    2009-01-01

    In this study, a discrete-event simulation approach was used to model Emergency Department’s (ED) patient flow to investigate the effect of inpatient boarding on the ED efficiency in terms of the National Emergency Department Crowding Scale (NEDOCS) score and the rate of patients who leave without being seen (LWBS). The decision variable in this model was the boarder-released-ratio defined as the ratio of admitted patients whose boarding time is zero to all admitted patients. Our analysis sho...

  15. Communicating Qualitative Research Study Designs to Research Ethics Review Boards

    Science.gov (United States)

    Ells, Carolyn

    2011-01-01

    Researchers using qualitative methodologies appear to be particularly prone to having their study designs called into question by research ethics or funding agency review committees. In this paper, the author considers the issue of communicating qualitative research study designs in the context of institutional research ethics review and offers…

  16. The impact of manufacturing complexity drivers on performance-a preliminary study

    Science.gov (United States)

    Huah Leang, Suh; Mahmood, Wan Hasrulnizzam Wan; Rahman, Muhamad Arfauz A.

    2018-03-01

    Manufacturing systems, in pursuit of cost, time and flexibility optimisation are becoming more and more complex, exhibiting a dynamic and nonlinear behaviour. Unpredictability is a distinct characteristic of such behaviour and effects production planning significantly. Therefore, this study was undertaken to investigate the priority level and current achievement of manufacturing performance in Malaysia’s manufacturing industry and the complexity drivers on manufacturing productivity performance. The results showed that Malaysia’s manufacturing industry prioritised product quality and they managed to achieve a good on time delivery performance. However, for other manufacturing performance, there was a difference where the current achievement of manufacturing performances in Malaysia’s manufacturing industry is slightly lower than the priority given to them. The strong correlation of significant value for priority status was observed between efficient production levelling (finished goods) and finish product management while the strong correlation of significant value for current achievement was minimised the number of workstation and factory transportation system. This indicates that complexity drivers have an impact towards manufacturing performance. Consequently, it is necessary to identify complexity drivers to achieve well manufacturing performance.

  17. Achievement report in fiscal 2000 on technical development to recycle waste building materials and glasses. Development of waste building material recycling technology (Research and development of wooden board manufacturing technology using demolished building lumbers); 2000 nendo kenchiku glass nado recycle gijutsu kaihatsu seika hokokusho. Kenhciku haizai recycle gijutsu kaihatsu (kenchiku kaitai mokuzai wo mochiita mokushitsu board seizo gijutsu no kenkyu kaihatsu)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-03-01

    Research and development has been made on a wooden board manufacturing technology re-utilizing demolished building lumbers and waste plastics with an intention of saving resources and reducing wastes. This paper summarizes the achievements in fiscal 2000. In developing the technology to re-use demolished building lumbers, a method for removing metals attached to demolished building lumbers was established by using a magnetic separator and a metal detector, with which it was verified that iron can be removed nearly 100%. With regard to waste plastics, simultaneous use of specific gravity separation utilizing centrifugal force and electrostatic separation provided a prospect that metals and plastics of high melting points can be removed from mixed resins in waste household electric appliances, and that polypropylene (PP), polystyrene (PS), and ABS can be classified at high accuracy. In manufacturing waste wood and waste plastic boards, pilot plants were built to use the 'melt spray method', 'melt blow method', and 'laminating method' as the means to spray molten resin onto wood raw materials, wherein trials were performed on mixing molten resins with wood flakes, and on board forming. (NEDO)

  18. Space station automation study. Automation requirements derived from space manufacturing concepts. Volume 1: Executive summary

    Science.gov (United States)

    1984-01-01

    The two manufacturing concepts developed represent innovative, technologically advanced manufacturing schemes. The concepts were selected to facilitate an in depth analysis of manufacturing automation requirements in the form of process mechanization, teleoperation and robotics, and artificial intelligence. While the cost effectiveness of these facilities has not been analyzed as part of this study, both appear entirely feasible for the year 2000 timeframe. The growing demand for high quality gallium arsenide microelectronics may warrant the ventures.

  19. Customer orientation and innovation : a comparative study of manufacturing and service firms

    OpenAIRE

    Wang, Qiang; Zhao, Xiande; Voss, Christopher

    2016-01-01

    This study investigates the effect of customer orientation on innovation performance in manufacturing and service firms by comparing their innovation mechanisms. Based on a sample of 1646 manufacturing firms and 686 service firms, our results indicate that customer orientation positively affects service innovativeness and product innovativeness in service firms and manufacturing firms, respectively, and that such effects are mediated by two important firm resources: supplier collaboration and...

  20. AN EXPLORATORY STUDY ON EMPLOYEE’S PERCEPTION TOWARDS LEAN MANUFACTURING SYSTEMS

    Directory of Open Access Journals (Sweden)

    Rajesh Kumar MEHTA

    2012-01-01

    Full Text Available Lean deals with generating more value for customers by eliminating factors that are merely considered waste. Lean Manufacturing is a systematic approach to identifying and eliminating waste through continuous improvement. Lean Manufacturing uses less of everything and attains its set objectives by excellent teamwork, communication, and competent use of available resources & continuous Improvement. The present paper is an attempt to study employee’s perception towards lean manufacturing systems in gear industry.

  1. An exploratory study of close supplier-manufacturer relationships

    OpenAIRE

    Goffin, Keith; Lemke, Fred; Szwejczewski, Marek

    2006-01-01

    Close relationships with selected suppliers can enable manufacturers to reduce costs, improve quality and enhance new product development. Although the advantages of close co-operation are widely acknowledged in the literature, the specific attributes of such relationships are not well understood. To address this gap, 39 managers responsible for purchasing were interviewed using a technique from psychology, which is particularly effective at uncovering the characteristics of...

  2. Tobacco price boards as a promotional strategy-a longitudinal observational study in Australian retailers.

    Science.gov (United States)

    Bayly, Megan; Scollo, Michelle; White, Sarah; Lindorff, Kylie; Wakefield, Melanie

    2017-07-22

    Price boards in tobacco retailers are one of the few forms of tobacco promotion remaining in Australia. This study aimed to examine how these boards were used to promote products over a period of rapidly rising taxes. Observations were made in a panel of 350 stores in Melbourne, Australia, in November of 2013 (just before) and in 2014 and 2015 (after 12.5% increases in tobacco duty). Fieldworkers unobtrusively noted the presence and characteristics of price boards, and the brand name, size and price of the product at the top of each board. Price boards were common in all store types apart from newsagent/lottery agents. The characteristics of the top-listed product changed notably over time: premium brands accounted for 66% of top-listed products in 2013, significantly declining to 43% in 2015, while packs of 20 cigarettes increased in prominence from 32% to 45%. The prevalence of packs of 20 cigarettes in budget market segments tripled from 2013 (13%) and 2014 (11%) to 32% in 2015, with no change in the proportion of packs that were under $A20 from 2014 (37%) to 2015 (36%). The rate of increase in the average price of the top-listed pack correspondingly flattened from 2014 to 2015 compared with 2013-2014. Price boards promote tobacco products in ways that undermine the effectiveness of tax policy as a means of discouraging consumption. Communication to consumers about prices should be restricted to information sheets provided to adult smokers on request at the point of sale. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  3. Assessing the operational life of flexible printed boards intended for continuous flexing applications : a case study.

    Energy Technology Data Exchange (ETDEWEB)

    Beck, David Franklin

    2011-01-01

    Through the vehicle of a case study, this paper describes in detail how the guidance found in the suite of IPC (Association Connecting Electronics Industries) publications can be applied to develop a high level of design assurance that flexible printed boards intended for continuous flexing applications will satisfy specified lifetime requirements.

  4. 75 FR 10261 - Request for Nominations to the EPA Human Studies Review Board

    Science.gov (United States)

    2010-03-05

    ... scientific and ethical aspects of human subjects research. The major objectives of the HSRB are to provide... of the following areas: Bioethics: expertise in the ethics of research with human subjects... EPA Human Studies Review Board AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY...

  5. A COMPARATIVE STUDY OF STATE LICENSING BOARDS FOR SCHOOL ADMINISTRATION AND OTHER SELECTED PROFESSIONS.

    Science.gov (United States)

    MOLINARI, RALPH G.; AND OTHERS

    COMPARISON OF THE COMPOSITION, CHARACTERISTICS, AND CURRENT LICENSING PRACTICES OF STATE LICENSING BOARDS FOR EDUCATIONAL ADMINISTRATION WITH LICENSING PROGRAMS FOR SEVEN OTHER PROFESSIONS, (ACCOUNTANCY, ARCHITECTURE, DENTISTRY, ENGINEERING, LAW, MEDICINE, AND NURSING) WAS THE PURPOSE OF THIS NATIONWIDE STUDY. THE RESEARCH PROCEDURES WERE DIVIDED…

  6. Florida SpringBoard® Schools Efficacy Study. Statistical Report 2015-1

    Science.gov (United States)

    Niu, Sunny; Li, Jun; Merriman, Jennifer; Matos-Elefonte, Haifa

    2015-01-01

    In this study, we compare SpringBoard® (SB) schools that had continuously used the SB English Language Arts (ELA) curriculum for at least three years with comparable non-SB schools. For high schools, the outcomes examined were school-level AP® participation and performance for a) all AP subjects, b) ELA and social science AP subjects, and c) ELA…

  7. 78 FR 18978 - Human Studies Review Board; Notification of a Public Webinar/Teleconference

    Science.gov (United States)

    2013-03-28

    ... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2013-0115; FRL 9794-8] Human Studies Review Board; Notification of a Public Webinar/ Teleconference AGENCY: U. S. Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The EPA Office of the Science Advisor announces a public Webinar/teleconference of the...

  8. 76 FR 2107 - Human Studies Review Board; Notice of Public Meeting

    Science.gov (United States)

    2011-01-12

    ... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2011-0970; FRL-9252-3] Human Studies Review Board; Notice of Public Meeting AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The U.S. Environmental Protection Agency (EPA or Agency) Office of the Science Advisor (OSA) announces a public meeting...

  9. 75 FR 32461 - Human Studies Review Board; Notice of Public Meeting

    Science.gov (United States)

    2010-06-08

    ... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2010-0381; FRL-9159-9] Human Studies Review Board; Notice of Public Meeting AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The U.S. Environmental Protection Agency's (EPA or Agency) Office of the Science Advisor (OSA) announces a public meeting...

  10. 76 FR 25686 - Human Studies Review Board (HSRB); Notification of a Public Teleconference

    Science.gov (United States)

    2011-05-05

    ... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2011-0418; FRL-9302-4] Human Studies Review Board (HSRB); Notification of a Public Teleconference AGENCY: Environmental Protection Agency (EPA). ACTION...) announces a public teleconference of the HSRB to discuss its draft report from the April 13-14, 2011 HSRB...

  11. 77 FR 15099 - Human Studies Review Board; Notification of a Public Webinar/Teleconference

    Science.gov (United States)

    2012-03-14

    ... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2012-0175; FRL-9647-2] Human Studies Review Board; Notification of a Public Webinar/ Teleconference AGENCY: U. S. Environmental Protection Agency. ACTION: Notice. SUMMARY: The EPA Office of the Science Advisor announces a public Webinar/teleconference of the HSRB to...

  12. 76 FR 77825 - Human Studies Review Board; Notification of a Public Teleconference

    Science.gov (United States)

    2011-12-14

    ... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2011-0953; FRL-9506-6] Human Studies Review Board; Notification of a Public Teleconference AGENCY: Environmental Protection Agency. ACTION: Notice. SUMMARY: The EPA Office of the Science Advisor announces a public teleconference of the HSRB to discuss its draft...

  13. 76 FR 17121 - Human Studies Review Board (HSRB); Notification of a Public Meeting

    Science.gov (United States)

    2011-03-28

    ... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2011-0124; FRL-9287-1] Human Studies Review Board (HSRB); Notification of a Public Meeting AGENCY: Environmental Protection Agency (EPA). ACTION: Notice... public meeting of the HSRB to advise the Agency on EPA's scientific and ethical reviews of research with...

  14. 75 FR 61748 - Human Studies Review Board; Notice of Public Meeting

    Science.gov (United States)

    2010-10-06

    ... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2010-0797' FRL-9211-1] Human Studies Review Board; Notice of Public Meeting AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The U.S. Environmental Protection Agency (EPA or Agency) Office of the Science Advisor (OSA) announces a public meeting...

  15. Improving airplane boarding time : A review, a field study and an experiment with a new way of hand luggage stowing

    NARCIS (Netherlands)

    Coppens, J.; Dangal, Sagar; Vendel, M.E.; Anjani, S.; Akkerman, Stefan; Hiemstra-van Mastrigt, S.; Vink, P.

    2018-01-01

    The airplane (de)boarding process is not organized optimally. The goal of this paper is to search for improvement possibilities. In this paper literature is reviewed, boarding characteristics are studied in a field study and a pilot study with a new way of hand luggage stowing is performed. Computer

  16. Sustainability issues in circuit board recycling

    DEFF Research Database (Denmark)

    Legarth, Jens Brøbech; Alting, Leo; Baldo, Gian Luca

    1995-01-01

    The resource recovery and environmental impact issues of printed circuit board recycling by secondary copper smelters are discussed. Guidelines concerning material selection for circuit board manufacture and concerning the recycling processes are given to enhance recovery efficiency and to lower...

  17. Efficient transformer study: Analysis of manufacture and utility data

    Energy Technology Data Exchange (ETDEWEB)

    Burkes, Klaehn [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL); Cordaro, Joe [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL); McIntosh, John [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL); McConnell, Benjamin [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL); Hammerstrom, Donald [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)

    2017-05-16

    Distribution transformers convert power from the distribution system voltage to the end-customer voltage, which consists of residences, businesses, distributed generation, campus systems, and manufacturing facilities. Amorphous metal distribution transformers (AMDT) are also more expensive and heavier than conventional silicon steel distribution transformers. This and the difficulty to measure the benefit from energy efficiency and low awareness of the technology have hindered the adoption of AMDT. This report presents the cost savings for installing AMDT and the amount of energy saved based on the improved efficiency.

  18. THE EFFECTS OF EARNINGS MANAGEMENT ON ACCOUNTING CONSERVATISM MODERATED BY CORPORATE GOVERNANCE MECHANISM (STUDY OF MANUFACTURING COMPANIES LISTEDON INDONESIA STOCK EXCHANGEIN 2008 – 2010

    Directory of Open Access Journals (Sweden)

    AMMAR AL ASYARI

    2013-07-01

    Full Text Available This study aimsto examine earnings management by companies manufacturing in Indonesia affect the choice of managers to implement aconservative accounting policy. With corporate governance mechanisms in influencing the relationship of Earning Management on Accounting Conservatism. Methods of analysis using multiple linear regression analysis with one independent variable, one dependent variable and two variables moderation. Corporate governance mechanismuses two characteristics as moderating variables, managerial ownership and board of commissioners. Size using the accrua lconservatism, according to those used by Givolyand Hayn (2002 and discretionary accruals as aproxy for earnings management is computed using the Modified Jones Model (Dechow etal., 1995. By using the purposive sampling method, the sample in this research consists of 23 manufacturing companies that listed on Indonesia Stock Exchange in 2008 – 2010. This research use secondary data which is collected from the firm’s annual report and financial statements. The result of this research shows that simultaneously, earning management, managerial ownership, and board of commissioners influence accounting conservatism. Partially, only earning management that significantly influences accounting conservatism. While managerial ownership and board of commissioners do not significantly influence the relationship of Earning Management on Accounting Conservatism.

  19. LEAN MANUFACTURING IN TWO SERBIAN FOOD COMPANIES - CASE STUDIES

    Directory of Open Access Journals (Sweden)

    Ilija Đekić

    2012-06-01

    Full Text Available This paper gives an overview of a 9 month experience in implementing lean manufacturing tools in two Serbian food companies. Both companies have certified quality and food safety management systems and are food exporters. One of them is a big producer with more than 1000 employees with a three shift serial production while the other is a small producer with one shift and batch oriented production. Results showed that six tools were chosen by both companies - Total productive maintenance, Poka yoke, batch reduction, layout improvement, standardization of work and visual management. The big company implemented also cellular and flow, Jidoka, quick changeovers and 5S. None of the companies expressed interest at implementing Just-In-Time, Kanban, Self-inspection and Value stream mapping at this stage of the project.

  20. A study on the polymer catalyst manufacturing technology

    International Nuclear Information System (INIS)

    Chung, Heung Seok; Lee, Han Soo; Kang, Hee Seok; Paek, Seung Uh; Kim, Kwang Rak; Koo, Jee Hyu; Chung, Yong Won; Sung, Ki Ung; Na, Jeong Won; Hwang, Seong Tae; Kim, Yong Ik; Choi, Yoon Dong

    1994-01-01

    Heavy water is used as moderator and coolant in Pressurized Heavy Water Power Plants. According to the governmental long-term plan for power supply, Korea is scheduled to construct new four pressurized heavy water power plants till the year 2006. Total heavy water demand for these plants would be 1988 Mg during the period 1992-2006. Reformed hydrogen processes is considered best suited to Korea. Hydrophobic catalysts for this process were manufactured and the performance of hydrogen isotope exchance was investigated. The overall mass transfer coefficients varied between 0.004 and 2.295 m 3 HD/m 3 Bed.sec. and heavy water separation processes using the catalysts were optimized. (Author)

  1. The effect of lean manufacturing (LM) on environmental performance: A review study

    Science.gov (United States)

    Alaa, A. S.; Shaiful, A. I. M.; Zuraidah, M. Z.; Khalaf, A. M.

    2017-09-01

    Nowadays, lean manufacturing strategy is very much used to eliminate waste on the manufacturing shop floor. Lean manufacturing has been formulated in response to the fluctuating and competitive business environment. Although it first started in the automotive industry, many organizations in different sectors are enthusiastic to adopt it in order to improve their performance in this competitive globalized market. The aim of this paper is to review the current level of implementation of lean manufacturing practices and the affects of these practices on organizational performances in a multitude of sectors in Malaysian industries. The study is carried out through a thorough review of the literature. It is observed that lean manufacturing is increasingly getting the appropriate attention in Malaysian industries. There are also many challenges in the way, of which numerous attempts are undertaken to overcome them.

  2. Bandwidth Study on Energy Use and Potential Energy Saving Opportunities in U.S. Chemical Manufacturing

    Energy Technology Data Exchange (ETDEWEB)

    Sabine Brueske, Caroline Kramer, Aaron Fisher

    2015-06-01

    Energy bandwidth studies of U.S. manufacturing sectors can serve as foundational references in framing the range (or bandwidth) of potential energy savings opportunities. This bandwidth study examines energy consumption and potential energy savings opportunities in U.S. chemical manufacturing. The study relies on multiple sources to estimate the energy used in the production of 74 individual chemicals, representing 57% of sector-wide energy consumption. Energy savings opportunities for individual chemicals and for 15 subsectors of chemicals manufacturing are based on technologies currently in use or under development; these potential savings are then extrapolated to estimate sector-wide energy savings opportunity.

  3. Conflict in the Boardroom: A Participant Observation Study of Non-Executive Board Dynamic

    OpenAIRE

    Heemskerk, E.M.; Heemskerk, K.; Wats, M.M.

    2017-01-01

    We develop a conflict-oriented model of board task performance and argue that a common framework, that is, a shared understanding of its role, helps boards to perform well. Conflict is the mediating effect through which this plays out. We posit that a common framework increases board task performance because it reduces intragroup relationship conflicts, increases task conflicts within the board, and reduces conflicts in the relationship between board and CEO. We explore the model through a co...

  4. Geometrical accuracy of metallic objects produced with additive or subtractive manufacturing: A comparative in vitro study.

    Science.gov (United States)

    Braian, Michael; Jönsson, David; Kevci, Mir; Wennerberg, Ann

    2018-04-06

    To evaluate the accuracy and precision of objects produced by additive manufacturing systems (AM) for use in dentistry and to compare with subtractive manufacturing systems (SM). Ten specimens of two geometrical objects were produced by five different AM machines and one SM machine. Object A mimics an inlay-shaped object, while object B imitates a four-unit bridge model. All the objects were sorted into different measurement dimensions (x, y, z), linear distances, angles and corner radius. None of the additive manufacturing or subtractive manufacturing groups presented a perfect match to the CAD file with regard to all parameters included in the present study. Considering linear measurements, the precision for subtractive manufacturing group was consistent in all axes for object A, presenting results of additive manufacturing groups had consistent precision in the x-axis and y-axis but not in the z-axis. With regard to corner radius measurements, the SM group had the best overall accuracy and precision for both objects A and B when compared to the AM groups. Within the limitations of this in vitro study, the conclusion can be made that subtractive manufacturing presented overall precision on all measurements below 0.050mm. The AM machines also presented fairly good precision, additive techniques are now being implemented. Thus all these production techniques need to be tested, compared and validated. Copyright © 2018 The Academy of Dental Materials. Published by Elsevier Inc. All rights reserved.

  5. Manufacturing strategies of Turkish firms: an empirical study on business environmental factors and competitive priorities

    OpenAIRE

    Ataseven, Çiğdem

    2006-01-01

    Cataloged from PDF version of article. There have been several studies that aim at exploring the relationships between business environment and strategy choices of firms in the literature. Cross country comparisons are provided when available to understand the differences between the manufacturing practices of the firms operating in different countries. This study analyzes the relationships between business environment, business strategy and manufacturing strategy by using t...

  6. How Nutrition Sensitive Are the Nutrition Policies of New Zealand Food Manufacturers? A Benchmarking Study.

    Science.gov (United States)

    Doonan, Rebecca; Field, Penny

    2017-12-19

    Nutrition sensitive policy addresses the underlying determinants of nutrition-related disease and is a powerful tool in reducing the incidence of non-communicable disease. Some members of the food industry have long standing commitments to health-oriented nutrition policies. The aim of this study was to develop and apply a balanced scorecard of nutrition sensitive indicators to the policies of influential New Zealand food and beverage manufacturers and explore factors affecting policy processes. The average nutrition sensitivity score of the twenty influential manufacturers policies was 42 against a benchmark of 75. Some manufacturers performed well whilst others had substantial scope for improvement, the largest variation was in policy development and implementation, whereas nutrition quality was relatively consistent. Manufacturers with written policy ( n = 11) scored on average three times higher than their counterparts with verbal policy. The value a manufacturer placed on nutrition influenced whether formal nutrition policies were developed. The reputational risk of failing to deliver on publicly declared nutrition commitments acted as an informal accountability mechanism. We conclude the balanced scorecard offers a useful tool for assessing the nutrition sensitivity of influential food and beverage manufacturers' policies. Our results provide a baseline for repeat assessments of the nutrition sensitivity of food manufacturers' policies.

  7. A study on the applications of AI in finishing of additive manufacturing parts

    Science.gov (United States)

    Fathima Patham, K.

    2017-06-01

    Artificial intelligent and computer simulation are the technological powerful tools for solving complex problems in the manufacturing industries. Additive Manufacturing is one of the powerful manufacturing techniques that provide design flexibilities to the products. The products with complex shapes are directly manufactured without the need of any machining and tooling using Additive Manufacturing. However, the main drawback of the components produced using the Additive Manufacturing processes is the quality of the surfaces. This study aims to minimize the defects caused during Additive Manufacturing with the aid of Artificial Intelligence. The developed AI system has three layers, each layer is trying to eliminate or minimize the production errors. The first layer of the AI system optimizes the digitization of the 3D CAD model of the product and hence reduces the stair case errors. The second layer of the AI system optimizes the 3D printing machine parameters in order to eliminate the warping effect. The third layer of AI system helps to choose the surface finishing technique suitable for the printed component based on the Degree of Complexity of the product and the material. The efficiency of the developed AI system was examined on the functional parts such as gears.

  8. Residual liquors of the pulp industries. 1. Lignohemicelluloses and silica from soda black liquors used as adjuvants in the manufacture of compact paper board

    Energy Technology Data Exchange (ETDEWEB)

    El-Saied, H; Nada, A A.M.; Ibrahem, A A

    1982-01-01

    Lignohemicellulosic materials and SiO/sub 2/ were recovered from black liquors from the pulping of rice straw. The lignohemicellulose improved the properties of compact cardboard from cotton stalk pulp more effectively than those of cardboard from rice straw pulp, while the effectiveness of the SiO/sub 2/ was in the opposite direction. The water resistance of cardboard from cotton stalk pulp made it suitable for both outdoor and indoor use, while cardboard from rice straw pulp could be used only indoors. The lignohemicellulose and SiO/sub 2/ could effectively replace more expensive phenolic resins in cardboard manufacture.

  9. EMPIRICAL STUDY ON THE ROLE OF COLLABORATION IN NEW PRODUCT DEVELOPMENT IN MANUFACTURING COMPANIES

    Directory of Open Access Journals (Sweden)

    Hao Anh Nguyen

    2018-06-01

    Full Text Available This paper provides new empirical evidence on the effects of internal collaboration (manufacturing involvement and external collaboration (supplier and customer involvement practices on NPD performance and success. Moreover, comparing the collaboration practices and their effects on NPD across 10 countries are provided. Data were collected from high-performance manufacturing (HPM project with the sample of 265 manufacturing companies from 10 countries across the world. Descriptive, variance, correlation and regression analysis were conducted by using SPSS 22.0. Significant linkage between three collaboration practices and NPD performance & NPD success was found by statistical analysis. In addition, the results of this study reveal the significant differences in the implementation of collaboration practices across countries and the effects of those practices on NPD performance and success among countries. This study suggests that high performance and high success rate of NPD process could be achieved by external and internal collaboration in manufacturing companies.

  10. Energy Innovation Clusters and their Influence on Manufacturing: A Case Study Perspective

    Energy Technology Data Exchange (ETDEWEB)

    Engel-Cox, Jill [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Hill, Derek [National Science Foundation (NSF), Washington, DC (United States)

    2017-09-12

    Innovation clusters have been important for recent development of clean energy technologies and their emergence as mature, globally competitive industries. However, the factors that influence the co-location of manufacturing activities with innovation clusters are less clear. A central question for government agencies seeking to grow manufacturing as part of economic development in their location is how innovation clusters influence manufacturing. Thus, this paper examines case studies of innovation clusters for three different clean energy technologies that have developed in at least two locations: solar PV clusters in California and the province of Jiangsu in China, wind turbine clusters in Germany and the U.S. Great Lakes region, and ethanol clusters in the U.S. Midwest and the state of Sao Paulo in Brazil. These case studies provide initial insight into factors and conditions that contribute to technology manufacturing facility location decisions.

  11. IMPACTS OF OWN BRANDS STRATEGY ON MANUFACTURER – RETAILER RELATIONSHIP: CASE STUDIES IN LARGE SIZE COMPANIES

    Directory of Open Access Journals (Sweden)

    Renato Telles

    2012-05-01

    Full Text Available The study of marketing and production strategy of own brand products requires an understanding of both the benefits gained by retailers and manufacturers involved in this activity and also the effects of this strategy on the relationship between these companies. According to this idea, a qualitative and descriptive work was conducted, based on six case studies, three of them on large product manufacturers and three on large retailers. The aim of this study is defined is threefold: (1 to analyze the expectations of manufacturers and retailers with their own brands’ current operations, (2 to analyze the expectations of manufacturers and retailers with their own brands’ future operations, and (3 to analyze the influence of the own brands adoption on the relationship between manufacturers and retailers. The results indicate that (a current operations are primarily based on economic reasons (market share, and use of spare capacity, (b future operations are perceived from a marketing perspective (survival, and (c the adoption of own brand strategy does not harm the relationship between the parties – both manufacturers and retailers –, unlike the earlier studies indicated.

  12. Numerical and experimental study of Ti6Al4V components manufactured using powder bed fusion additive manufacturing

    OpenAIRE

    Zielinski, J.; Mindt, H.-W.; Düchting, J.; Schleifenbaum, J.H.; Megahed, M.

    2017-01-01

    Powder bed fusion additive manufacturing of titanium alloys is an interesting manufacturing route for many applications requiring high material strength combined with geometric complexity. Managing powder bed fusion challenges, including porosity, surface finish, distortions and residual stresses of as-built material, is the key to bringing the advantages of this process to production main stream. This paper discusses the application of experimental and numerical analysis towards optimizing t...

  13. Supply chain risk management processes for resilience: A study of South African grocery manufacturers

    OpenAIRE

    Simon Simba; Wesley Niemann; Theuns Kotzé; Assilah Agigi

    2017-01-01

    Background: The supply chain risk management (SCRM) process is aimed at the implementation of strategies that assist in managing both daily and exceptional risks facing the supply chain through continuous risk assessment to reduce vulnerability and ensure continuity. Purpose: The purpose of the study was to determine whether the SCRM process enables supply chain resilience among grocery manufacturers in South Africa. The fast-moving consumer goods (FMCG)-manufacturing industry faces incre...

  14. Have U.S. Manufacturing Inventories Really Decreased? An Empirical Study

    OpenAIRE

    S. Rajagopalan; Arvind Malhotra

    2001-01-01

    Numerous normative models have been developed to determine optimal inventory levels, and several articles and case studies have been written about the concerted efforts and practices adopted by manufacturing firms in the United States to reduce inventories. But little is known about whether inventories have indeed decreased in U.S. manufacturing and whether such a decrease has been restricted to a few well-publicized firms or is true at an industry level. Using data published by the U.S. Cens...

  15. Work-Team Implementation and Trajectories of Manufacturing Quality: A Longitudinal Field Study

    OpenAIRE

    Rajiv D. Banker; Joy M. Field; Kingshuk K. Sinha

    2001-01-01

    The study examines the sustainability of manufacturing quality improvements following the implementation of work teams on production lines. We posit that the impact on manufacturing quality, measured as the defect rate trajectory, is monotonically nonincreasing over time and may, more specifically, assume the shape of an inverted S-curve. Employing a longitudinal research design, we investigate four work teams over a 28-month period in a field setting. Each team corresponds to one of the four...

  16. Bentonite in the repository - Manufacture of bentonite blocks. A literature study

    International Nuclear Information System (INIS)

    Hultgren, Aa.

    1995-09-01

    Activities in nuclear power countries are reviewed, concerning developments in the use of bentonite for backfilling in nuclear waste repositories, in particular regarding manufacture of bentonite-blocks. Only one report was found which in detail describes the manufacture of highly compacted blocks of bentonite. Use of bentonite for sealing boreholes etc in the oil- and gas industry was also covered in the literature study. 19 refs, 3 tabs

  17. A case study analysis of the application of design for manufacture principles by industrial design students

    OpenAIRE

    Marshall, R; Page, T

    2016-01-01

    This paper describes a case study evaluation of a module that engages students on product and industrial design programmes with the principles of Design for Manufacturing (DFM). The primary element of the module is to expose students to the constraints of a full design to manufacture process. The module explores the design of a small polymer promotional item, together with the means of mass producing that item. This is done through the process of injection moulding and students design an inje...

  18. Roughness study on homogeneous layer panels manufactured from treated wood waste

    Directory of Open Access Journals (Sweden)

    Maria Fátima do Nascimento

    2017-02-01

    Full Text Available Natural resource exploration is growing, highlighting woods and joinery waste, wood industries and the like. This study presents homogeneous particleboard (PPH roughness characterization manufactured from treated wood waste. Normative document with values of Brazilian Technical Standard Association ABNT NBR 8404 (1984, was adopted as a reference. The results show that the manufactured PPH showed roughness class N 10, with roughness values (Ra of less than 12.5 microns.

  19. A Longitudinal Study into Indicators of Mental Health, Strengths and Difficulties Reported by Boarding Students as They Transition from Primary School to Secondary Boarding Schools in Perth, Western Australia

    Science.gov (United States)

    Mander, David J.; Lester, Leanne

    2017-01-01

    This study examined indicators of mental health, as well as strengths and difficulties, as reported by same-age boarding and non-boarding students spanning four time points over a 2-year period as they transitioned from primary to boarding school in Western Australia (i.e., at the end of Grade 7, beginning of Grade 8, end of Grade 8, and end of…

  20. Energy Efficiency in Manufacturing Systems

    CERN Document Server

    Thiede, Sebastian

    2012-01-01

    Energy consumption is of great interest to manufacturing companies. Beyond considering individual processes and machines, the perspective on process chains and factories as a whole holds major potentials for energy efficiency improvements. To exploit these potentials, dynamic interactions of different processes as well as auxiliary equipment (e.g. compressed air generation) need to be taken into account. In addition, planning and controlling manufacturing systems require  balancing technical, economic and environmental objectives. Therefore, an innovative and comprehensive methodology – with a generic energy flow-oriented manufacturing simulation environment as a core element – is developed and embedded into a step-by-step application cycle. The concept is applied in its entirety to a wide range of case studies such as aluminium die casting, weaving mills, and printed circuit board assembly in order to demonstrate the broad applicability and the benefits that can be achieved.

  1. Analisis Preferensi Siswa Melanjutkan Studi Ke SMP Islamic Boarding School Babusalam Pekanbaru Tp. 2014/2015

    OpenAIRE

    Asmida, Titin Asmida Titin; Saam, Zulfan Saam Zulfan; Yakub, Elni Yakub Elni

    2015-01-01

    This research aims to: (a) Analyzeaspects ofthe internalfactorsthatbecomethe preferenceof studentschoosing islamic, (b) AnalyzeaspectsExternalfactorsthatbecomethe preferenceof studentschoosing islamic Boarding School, (c) Analyzingthe category ofinternal factorsthatbecomethe preferenceof studentschoosing islamic Boarding School, (d) Analyzingthe category ofexternal factorsintothe preferencesof studentschoosing islamic Boarding School. The method usedinthisstudyis adescriptivestudy, Samplingte...

  2. Conflict in the Boardroom : A Participant Observation Study of Non-Executive Board Dynamic

    NARCIS (Netherlands)

    Heemskerk, E.M.; Heemskerk, K.; Wats, M.M.

    We develop a conflict-oriented model of board task performance and argue that a common framework, that is, a shared understanding of its role, helps boards to perform well. Conflict is the mediating effect through which this plays out. We posit that a common framework increases board task

  3. Atlas pixel opto-board production and analysis and optolink simulation studies

    International Nuclear Information System (INIS)

    Nderitu, Simon Kirichu

    2007-01-01

    At CERN, a Large collider will collide protons at high energies. There are four experiments being built to study the particle properties from the collision. The ATLAS experiment is the largest. It has many sub detectors among which is the Pixel detector which is the innermost part. The Pixel detector has eighty million channels that have to be read out. An optical link is utilized for the read out. It has optical to electronic interfaces both on the detector and off the detector at the counting room. The component on the detector in called the opto-board. This work discusses the production testing of the opto-boards to be installed on the detector. A total of 300 opto-boards including spares have been produced. The production was done in three laboratories among which is the laboratory at the University of Wuppertal which had the responsibility of Post production testing of all the one third of the total opto-boards. The results are discussed in this work. The analysis of the results from the total production process has been done in the scope of this work as well. In addition to the production, a study by simulation of the communication links optical signal has been done. This has enabled an assessment of the sufficiency of the optical signal against the transmission attenuation and irradiation degradation. A System Test set up has been put up at Wuppertal to enhance general studies for better understanding of the Pixel read out system. Among other studies is the study of the timing parameters behavior of the System which has been done in this work and enhanced by a simulation. These parameters are namely the mark to space ratio and the fine delay and their relatedness during the optolink tuning. A bit error rate test based on the System has also been done which enabled assessment of the transmission quality utilizing the tools inbuilt in the System Test. These results have been presented in this work. (orig.)

  4. Board and card games for studying electrochemistry: Preliminary research and early design

    Science.gov (United States)

    Kurniawan, Rizmahardian Ashari; Kurniasih, Dedeh; Jukardi

    2017-12-01

    Games in the chemistry classroom can offer engaging and fun alternative method of learning. However, only a few games in chemistry, especially in electrochemistry subject are available commercially. In this research, we developed board and card games for studying electrochemistry. We surveyed chemistry teacher and students from 10 different senior high schools in Pontianak to decide content and characteristic of the game. We have designed the game that can be played by four students or four group of students, either as a specific instruction in the classroom or as a supplementary learning material. The game was designed to help students understanding the voltaic cell configuration and its voltaic potential.

  5. Final report of the Multiprogram Laboratory Panel Energy Research Advisory Board. Volume II. Support studies

    International Nuclear Information System (INIS)

    Spiewak, I.; Guthrie, M.P.; Nichols, J.P.; Preston, E.L.; West, C.D.; Wilbanks, T.J.; Wilkes, B.Y.; Zerby, A.C.

    1982-09-01

    Volume II - support studies for nine national laboratories include: report of statistical data on the multiprogram laboratories; examples of national laboratory use in foreign countries; domestic models for national laboratory utilization; relationships of laboratories with industry and universities; uses of laboratories for training industrial R and D personnel; legal mandates and constraints on the national laboratories; with appendices on facts about Harwell, CEN-Saclay, TNO, Studsvik, and JAERI-Tokai; the Requirements Boards of the United Kingdom Department of Industry; impact of President's FY 1983 budget; and the PNL experiment

  6. 77 FR 38269 - Approval for Expanded Manufacturing Authority; Foreign-Trade Subzone 7M; Amgen Manufacturing...

    Science.gov (United States)

    2012-06-27

    ... Manufacturing Authority; Foreign-Trade Subzone 7M; Amgen Manufacturing Limited (Biotechnology and Healthcare... the scope of manufacturing authority on behalf of Amgen Manufacturing Limited (Amgen), within Subzone..., the Board hereby orders: The application to expand the scope of manufacturing authority under zone...

  7. A CONFIRMATORY STUDY OF SUPPLY CHAIN PERFORMANCE AND COMPETITIVENESS OF INDIAN MANUFACTURING ORGANIZATIONS

    Directory of Open Access Journals (Sweden)

    Amit Kumar Marwah

    2014-03-01

    Full Text Available This paper presents finding of a study on Indian manufacturing organizations. A conceptual model is proposed based on a rigorous literature review. The model so developed undergoes through a confirmatory factor analysis (CFA using Structural Equation Modeling (SEM approach. The paper highlights various factors responsible for supply chain performance (SCP, subsequently leading to competitiveness. The survey involves 361 manufacturing organizations across India and the data is gathered using 5-point Likert scale. The study a ttempts to integrate various factors contributing to SCP in a single study. It is proposed to further test the model using exploratory factor analysis (EFA.

  8. Studies on treatment and manufacturing of industrial materials

    Energy Technology Data Exchange (ETDEWEB)

    Hong, Seung Woong; Kim, Chi Kwon; Hwang, Seon Kook [Korea Institute of Geology Mining and Materials, Taejon (Korea, Republic of)

    1995-12-01

    For the technical development on utilization of domestic unused resources, the study on the production and the process of industrial raw materials was carried out. This study is divided into five articles and their main results are summarized as follows. 1. The utilization of chromic oxide wastes: This study was carried out to develop the optimum process for recovering precious and valuable metals from chrome oxide wastes. The following subjects such as, feasibility on the recovery of precious and valuable metals, recovery rate of precious and valuable metals, purification of extracted precious and valuable metals, and environmental aspects of recovery process, were investigated. 2. The production of ultramarine from nonmetal minerals: The aims were the determination of the optimum conditions of calcination of raw materials and the investigation of the synthesis mechanism of ultramarine green and blue. 3. The synthesis in fine calcium carbonate powder and it`s characteristics: The transformation process of amorphous CaCO{sub 3} obtained from the reaction between aqueous solution of Ca(OH){sub 2} and CO{sub 2} at 10, 15, 20 and 25 degree was traced continuously by measuring the electrical conductivity of the reaction solution and the influences of reaction temperature, electrical conductivity value of the reaction solution on the products after transformation were examined by x-ray powder diffraction and electron microscopy. 4. Mineral processing technology for abrasive minerals: Buyeo Materials in Buyeogun, Choongnam province is a company producing feldspar concentrate, but does not yet utilize the garnet as abrasive material and other useful heavy minerals wasted out from the process of feldspar ore. This aimed to develop technology and process for the recovery of garnet concentrate. 5. Synthesis of nitride material by plasma method: DC plasma torch which is a non-transferred type was constructed and silicon nitride powders were produced. (Abstract Truncated)

  9. A Framework of Retailer-Manufacturer Cooperation and Coopetition: Consumer Durable Goods Retailers’ Case Studies

    Directory of Open Access Journals (Sweden)

    Marzanna Katarzyna Witek-Hajduk

    2017-03-01

    Full Text Available Objective: The purpose of this paper is to develop a framework of cooperation and coopetition between retailers and key manufacturers from a perspective of retailers offering consumer durables. Research Design & Methods: In order to answer the research questions semi-structured, in-depth and face-to-face interviews with managers of six SMEs or large retailers operating in Poland and offering consumer durables were carried out. Findings: The empirical studies confirm both cooperation and coopetition between retailers and manufacturers – suppliers of consumer durables depending on, among others, the category of consumer goods and the balance of power between retailers and manufacturers. The scope of cooperation is not too wide, and concerns only some of the value chain processes indicated in the literature. Implications & Recommendations: Conducted studies are exploratory and need to be deepen with the use of quantitative research that will help determine the impact of the balance of power between manufacturers and retailers and the strength of retailer-manufacturer relations on the range / areas and financial and non-financial performance of this cooperation. Contribution & Value Added: The originality of this work lies in studying some aspects of retailers’ relations with their key suppliers operating in consumer durables market.

  10. Supply chain risk management processes for resilience: A study of South African grocery manufacturers

    Directory of Open Access Journals (Sweden)

    Simon Simba

    2017-09-01

    Full Text Available Background: The supply chain risk management (SCRM process is aimed at the implementation of strategies that assist in managing both daily and exceptional risks facing the supply chain through continuous risk assessment to reduce vulnerability and ensure continuity. Purpose: The purpose of the study was to determine whether the SCRM process enables supply chain resilience among grocery manufacturers in South Africa. The fast-moving consumer goods (FMCG-manufacturing industry faces increased risk because of the nature of their products being perishable with a limited shelf life. Method: This study was conducted using a descriptive qualitative research design. Data were collected by means of 12 semi-structured interviews with senior supply chain practitioners within the South African grocery manufacturing industry. Findings: The study found that most firms informally implement SCRM processes of risk identification, assessment, mitigation and monitoring to mitigate disruptions. Furthermore, the findings indicate that the SCRM processes facilitate resilience among grocery manufacturers in South Africa. Conclusion: The managerial implications show that supply chain managers of grocery manufacturers should formalise the SCRM process and develop risk assessment scales to better prioritise risks in order to run a resilient supply chain. The research contributes to the supply chain management field by adding to the scarce literature relating to SCRM as an enabler of supply chain resilience in a South African context.

  11. Relationship between TQM Elements and Organizational Performance : An Empirical Study of Manufacturing Sector of Pakistan

    Directory of Open Access Journals (Sweden)

    Masood ul Hassan

    2013-05-01

    Full Text Available This study empirically reveals the influence of the TQM elements comprising leadership, people management, process management, customer focus, information & analysis and strategic planning on the organizational performance in the manufacturing sector of Pakistan. The data were collected through a questionnaire survey from the 160 managers and employees of the manufacturing firms. Results using SPSS support the hypotheses that there is a positive relationship between the TQM elements and performance of Pakistani manufacturing firms. Furthermore, it is also found that customer focus is perceived as a dominant TQM practice for enhancing quality performance. Moreover, this study also provides a valuable knowledge to the top managers. Practical implementations along with the limitations have also been discussed in this study.

  12. Study of Photosensitive Dry Films Absorption for Printed Circuit Boards by Photoacoustic Technique

    Science.gov (United States)

    Hernández, R.; Zaragoza, J. A. Barrientos; Jiménez-Pérez, J. L.; Orea, A. Cruz; Correa-Pacheco, Z. N.

    2017-08-01

    In this work, the study of photosensitive dry-type films by photoacoustic technique is proposed. The dry film photoresist is resistant to chemical etching for printed circuit boards such as ferric chloride, sodium persulfate or ammonium, hydrochloric acid. It is capable of faithfully reproducing circuit pattern exposed to ultraviolet light (UV) through a negative. Once recorded, the uncured portion is removed with alkaline solution. It is possible to obtain good results in surface mount circuits with tracks of 5 mm. Furthermore, the solid resin films are formed by three layers, two protective layers and a UV-sensitive optical absorption layer in the range of 325 nm to 405 nm. By means of optical absorption of UV-visible rays emitted by a low-power Xe lamp, the films transform this energy into thermal waves generated by the absorption of optical radiation and subsequently no-radiative de-excitation occurs. The photoacoustic spectroscopy is a useful technique to measure the transmittance and absorption directly. In this study, the optical absorption spectra of the three layers of photosensitive dry-type films were obtained as a function of the wavelength, in order to have a knowledge of the absorber layer and the protective layers. These analyses will give us the physical properties of the photosensitive film, which are very important in curing the dry film for applications in printed circuit boards.

  13. MANAGING SMEs IN A TURBULENT CONTEXT: A CASE STUDY FROM A KOSOVAN MANUFACTURING COMPANY

    Directory of Open Access Journals (Sweden)

    Liridon Veliu

    2018-03-01

    Full Text Available The purpose of this paper is to present the influence of the management to the SMEs in the markets facing problems of economy consolidation. This paper seeks to explore how a particular manufacturing SME in Kosovo organizes its processes on the daily basis and the challenges that currently faces in a fragile competition. This research embraces a qualitative single case study methodology in the context of manufacturing SMEs. The data collection comprises fourteen interviews. We also conducted observation within the organization supplemented by analysing different documents in order to have triangulation that could increase validity and reliability. This study helps theorists to emphasize more upon the criticality of manufacturing SMEs in building a strong case for future frameworks in order to demystify the overwhelming ideas that only managerial levels should be involved in the research domain for the case analysis especially in the manufacturing industry. Particularly in Kosovo where SMEs in the manufacturing sector are still struggling to recover and create a solid infrastructure for growth where the need for a broader integration in the analysis is indispensable in understanding the challenges and future alternatives of this sector. We intend helping managers, employees and wider practitioners to understand the importance of mutual task responsibilities; developing an integrated cooperation process; emphasizing the criticality of avoiding the orthodox approach of a managerial leading style, and transforming it into a new orthopraxy of ensuring that an internal employee involvement and participation is the key to articulating the necessary efforts of organizational success.

  14. Study on Effect of Functional Competency on Performance of Indian Manufacturing Sector

    Directory of Open Access Journals (Sweden)

    Rameshwar Dubey

    2011-08-01

    Full Text Available India is one of the fastest emerging global manufacturing hub with a large number of firms shifting their manufacturing base to the country due to cheap labor and good supplier(s base. Over the years, India has the largest number of companies, outside of Japan, that have been recognized for excellence in quality. As many as 21 companies have received the Deming Excellence awards; 153 companies have achieved Total Productive Maintenance (TPM Excellence Award for their total productivity management practices by the Japan Institute of Plant Maintenance (JIPM committee (Source: IBEF, 2010. Here in this research article author(s conducted an empirical survey among Indian manufacturing firms to understand how manufacturing competency effect the firm performance. It has been observed that manufacturing competency has negative impact on firm performance which is contradicting with the so far empirical studies conducted in European, Japanese and American countries. Here in this study authors provides in depth analysis to explain this negative impact and how this can lead to positive impact.

  15. Use of the LITEE Lorn Manufacturing Case Study in a Senior Chemical Engineering Unit Operations Laboratory

    Science.gov (United States)

    Abraham, Nithin Susan; Abulencia, James Patrick

    2011-01-01

    This study focuses on the effectiveness of incorporating the Laboratory for Innovative Technology and Engineering Education (LITEE) Lorn Manufacturing case into a senior level chemical engineering unit operations course at Manhattan College. The purpose of using the case study is to demonstrate the relevance of ethics to chemical engineering…

  16. Noise exposure and cognitive performance: A study on personnel on board Royal Norwegian Navy vessels

    Directory of Open Access Journals (Sweden)

    Kaja Irgens-Hansen

    2015-01-01

    Full Text Available Prior research shows that work on board vessels of the Royal Norwegian Navy (RNoN is associated with noise exposure levels above recommended standards. Further, noise exposure has been found to impair cognitive performance in environmental, occupational, and experimental settings, although prior research in naval and maritime settings is sparse. The aim of this study was to evaluate cognitive performance after exposure to noise among personnel working on board vessels in the RNoN. Altogether 87 Navy personnel (80 men, 7 women; 31 ± 9 years from 24 RNoN vessels were included. Noise exposure was recorded by personal noise dosimeters at a minimum of 4 h prior to testing, and categorized into 4 groups for the analysis: 85.2 dB(A. The participants performed a visual attention test based on the Posner cue-target paradigm. Multivariable general linear model (GLM analyses were performed to analyze whether noise exposure was associated with response time (RT when adjusting for the covariates age, alertness, workload, noise exposure in test location, sleep the night before testing, use of hearing protection device (HPD, and percentage of errors. When adjusting for covariates, RT was significantly increased among personnel exposed to >85.2 dB(A and 77.1-85.2 dB(A compared to personnel exposed to <72.6 dB(A.

  17. Noise exposure and cognitive performance: A study on personnel on board Royal Norwegian Navy vessels.

    Science.gov (United States)

    Irgens-Hansen, Kaja; Gundersen, Hilde; Sunde, Erlend; Baste, Valborg; Harris, Anette; Bråtveit, Magne; Moen, Bente E

    2015-01-01

    Prior research shows that work on board vessels of the Royal Norwegian Navy (RNoN) is associated with noise exposure levels above recommended standards. Further, noise exposure has been found to impair cognitive performance in environmental, occupational, and experimental settings, although prior research in naval and maritime settings is sparse. The aim of this study was to evaluate cognitive performance after exposure to noise among personnel working on board vessels in the RNoN. Altogether 87 Navy personnel (80 men, 7 women; 31 ± 9 years) from 24 RNoN vessels were included. Noise exposure was recorded by personal noise dosimeters at a minimum of 4 h prior to testing, and categorized into 4 groups for the analysis: 85.2 dB(A). The participants performed a visual attention test based on the Posner cue-target paradigm. Multivariable general linear model (GLM) analyses were performed to analyze whether noise exposure was associated with response time (RT) when adjusting for the covariates age, alertness, workload, noise exposure in test location, sleep the night before testing, use of hearing protection device (HPD), and percentage of errors. When adjusting for covariates, RT was significantly increased among personnel exposed to >85.2 dB(A) and 77.1-85.2 dB(A) compared to personnel exposed to <72.6 dB(A).

  18. Institutional review board challenges related to community-based participatory research on human exposure to environmental toxins: A case study

    Directory of Open Access Journals (Sweden)

    Rudel Ruthann A

    2010-07-01

    Full Text Available Abstract Background We report on the challenges of obtaining Institutional Review Board (IRB coverage for a community-based participatory research (CBPR environmental justice project, which involved reporting biomonitoring and household exposure results to participants, and included lay participation in research. Methods We draw on our experiences guiding a multi-partner CBPR project through university and state Institutional Review Board reviews, and other CBPR colleagues' written accounts and conference presentations and discussions. We also interviewed academics involved in CBPR to learn of their challenges with Institutional Review Boards. Results We found that Institutional Review Boards are generally unfamiliar with CBPR, reluctant to oversee community partners, and resistant to ongoing researcher-participant interaction. Institutional Review Boards sometimes unintentionally violate the very principles of beneficence and justice which they are supposed to uphold. For example, some Institutional Review Boards refuse to allow report-back of individual data to participants, which contradicts the CBPR principles that guide a growing number of projects. This causes significant delays and may divert research and dissemination efforts. Our extensive education of our university Institutional Review Board convinced them to provide human subjects protection coverage for two community-based organizations in our partnership. Conclusions IRBs and funders should develop clear, routine review guidelines that respect the unique qualities of CBPR, while researchers and community partners can educate IRB staff and board members about the objectives, ethical frameworks, and research methods of CBPR. These strategies can better protect research participants from the harm of unnecessary delays and exclusion from the research process, while facilitating the ethical communication of study results to participants and communities.

  19. How Nutrition Sensitive Are the Nutrition Policies of New Zealand Food Manufacturers? A Benchmarking Study

    Science.gov (United States)

    Doonan, Rebecca

    2017-01-01

    Nutrition sensitive policy addresses the underlying determinants of nutrition-related disease and is a powerful tool in reducing the incidence of non-communicable disease. Some members of the food industry have long standing commitments to health-oriented nutrition policies. The aim of this study was to develop and apply a balanced scorecard of nutrition sensitive indicators to the policies of influential New Zealand food and beverage manufacturers and explore factors affecting policy processes. Results: The average nutrition sensitivity score of the twenty influential manufacturers policies was 42 against a benchmark of 75. Some manufacturers performed well whilst others had substantial scope for improvement, the largest variation was in policy development and implementation, whereas nutrition quality was relatively consistent. Manufacturers with written policy (n = 11) scored on average three times higher than their counterparts with verbal policy. The value a manufacturer placed on nutrition influenced whether formal nutrition policies were developed. The reputational risk of failing to deliver on publicly declared nutrition commitments acted as an informal accountability mechanism. We conclude the balanced scorecard offers a useful tool for assessing the nutrition sensitivity of influential food and beverage manufacturers’ policies. Our results provide a baseline for repeat assessments of the nutrition sensitivity of food manufacturers’ policies. PMID:29257049

  20. How Nutrition Sensitive Are the Nutrition Policies of New Zealand Food Manufacturers? A Benchmarking Study

    Directory of Open Access Journals (Sweden)

    Rebecca Doonan

    2017-12-01

    Full Text Available Nutrition sensitive policy addresses the underlying determinants of nutrition-related disease and is a powerful tool in reducing the incidence of non-communicable disease. Some members of the food industry have long standing commitments to health-oriented nutrition policies. The aim of this study was to develop and apply a balanced scorecard of nutrition sensitive indicators to the policies of influential New Zealand food and beverage manufacturers and explore factors affecting policy processes. Results: The average nutrition sensitivity score of the twenty influential manufacturers policies was 42 against a benchmark of 75. Some manufacturers performed well whilst others had substantial scope for improvement, the largest variation was in policy development and implementation, whereas nutrition quality was relatively consistent. Manufacturers with written policy (n = 11 scored on average three times higher than their counterparts with verbal policy. The value a manufacturer placed on nutrition influenced whether formal nutrition policies were developed. The reputational risk of failing to deliver on publicly declared nutrition commitments acted as an informal accountability mechanism. We conclude the balanced scorecard offers a useful tool for assessing the nutrition sensitivity of influential food and beverage manufacturers’ policies. Our results provide a baseline for repeat assessments of the nutrition sensitivity of food manufacturers’ policies.

  1. Study of additive manufactured microwave cavities for pulsed optically pumped atomic clock applications

    Science.gov (United States)

    Affolderbach, C.; Moreno, W.; Ivanov, A. E.; Debogovic, T.; Pellaton, M.; Skrivervik, A. K.; de Rijk, E.; Mileti, G.

    2018-03-01

    Additive manufacturing (AM) of passive microwave components is of high interest for the cost-effective and rapid prototyping or manufacture of devices with complex geometries. Here, we present an experimental study on the properties of recently demonstrated microwave resonator cavities manufactured by AM, in view of their applications to high-performance compact atomic clocks. The microwave cavities employ a loop-gap geometry using six electrodes. The critical electrode structures were manufactured monolithically using two different approaches: Stereolithography (SLA) of a polymer followed by metal coating and Selective Laser Melting (SLM) of aluminum. The tested microwave cavities show the desired TE011-like resonant mode at the Rb clock frequency of ≈6.835 GHz, with a microwave magnetic field highly parallel to the quantization axis across the vapor cell. When operated in an atomic clock setup, the measured atomic Rabi oscillations are comparable to those observed for conventionally manufactured cavities and indicate a good uniformity of the field amplitude across the vapor cell. Employing a time-domain Ramsey scheme on one of the SLA cavities, high-contrast (34%) Ramsey fringes are observed for the Rb clock transition, along with a narrow (166 Hz linewidth) central fringe. The measured clock stability of 2.2 × 10-13 τ-1/2 up to the integration time of 30 s is comparable to the current state-of-the-art stabilities of compact vapor-cell clocks based on conventional microwave cavities and thus demonstrates the feasibility of the approach.

  2. PEMANFAATAN IDEF0 UNTUK ANALISIS KINERJA SISTEM MANUFAKTUR (STUDI KASUS: THE ORDER HANDLING MANUFACTURING SYSTEMS

    Directory of Open Access Journals (Sweden)

    Slamet Budiarto

    2016-09-01

    Full Text Available The IDEF0 (Integration Definition Language 0 developed by Douglas T.Ross and SoftTech.Inc is a procedure for modeling functionality as part of the Air Force programmed on computer-aided-manufacturing which based on SADT (Structured Analisys and Design Technique. Wang and Smith (1988 suggested that IDEF0 could be combined with SSM. IDEF0 is used to analysis manufacture systems, in this case OHMS. Data from research (Budiarto, 2005 on Division of General Engineering at PT.PAL use OHMS further analyzed in this study. Data analysis shows that IDEF0 can be used to mapping activity system, both at the global as well as detail views, and performance indicators for each detail activities can be developed trough IDEF0. In addition IDEF0 can be used as a tool in providing recommendation of performance improvement of manufacturing systems.

  3. CIMOSA process classification for business process mapping in non-manufacturing firms: A case study

    Science.gov (United States)

    Latiffianti, Effi; Siswanto, Nurhadi; Wiratno, Stefanus Eko; Saputra, Yudha Andrian

    2017-11-01

    A business process mapping is one important means to enable an enterprise to effectively manage the value chain. One of widely used approaches to classify business process for mapping purpose is Computer Integrated Manufacturing System Open Architecture (CIMOSA). CIMOSA was initially designed for Computer Integrated Manufacturing (CIM) system based enterprises. This paper aims to analyze the use of CIMOSA process classification for business process mapping in the firms that do not fall within the area of CIM. Three firms of different business area that have used CIMOSA process classification were observed: an airline firm, a marketing and trading firm for oil and gas products, and an industrial estate management firm. The result of the research has shown that CIMOSA can be used in non-manufacturing firms with some adjustment. The adjustment includes addition, reduction, or modification of some processes suggested by CIMOSA process classification as evidenced by the case studies.

  4. A study on the mechanical properties of additive manufactured polymer materials

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Dong Bum; Lee, In Hwan; Cho, Hae Yong [Dept. of Mechanical Engineering, Chungbuk National University, Cheongju (Korea, Republic of)

    2015-08-15

    Traditionally, additive manufacturing (AM) technology has been used to fabricate prototypes in the early development phase of a product. This technology is being applied to release manufacturing of a product because of its low cost and fast fabrication. AM technology is a process of joining materials to fabricate a product from the 3D CAD data in a layer-by-layer manner. The orientation of a layer during manufacturing can affect the mechanical properties of the product because of its anisotropy. In this paper, tensile testing of polymer-based specimens were built with a typical AM process (FDM, PolyJet and SLA) to study the mechanical properties of the AM materials. The ASTM D 638 tensile testing standard was followed for building the specimens. The mechanical properties of the specimens were determined on the basis of stress-strain curves formed by tensile tests. In addition, the fracture surfaces of the specimens were observed by SEM to analyze the results.

  5. Reduction of adhesive stain defect in flexible printed circuit board on hot pressing process: A case study of electronic component factory

    Directory of Open Access Journals (Sweden)

    Sakulkaew Srisang

    2015-03-01

    Full Text Available The objective of this research is a reduction of an adhesive stain defect in flexible printed circuit board in hot pressing process, the electronic factory. The manufacturing have been processing by sheet type of products with ninety-six pieces of flexible printed circuit boards. Causes of the problem include the before and internal hot pressing process. In process beginning times, the most right row of products between the cooling plate and the hot pressing machine has temperature 71.2◦C that is higher than glass transition temperature (Tg 60◦C. Those products’ temperature lead to evaporate a polyimide adhesive before hot pressing process beginning. The internal hot pressing process include the preheat times and the pressure time. In the preheat time the problem is a gap between lower and upper plate, was under specification (Under 1 mm and leaded to adhesive polyimide stain. In the actuality this time requires temperature and low pressure that mean a gap within 1 – 2 mm (between lower and upper plate. In pressure times the hot pressing plate surface is not flat and products are pressed by insufficient force that it lead to generate an adhesive stain on flexible printed circuit boards. That force is measured by the pre-scale paper and a result, RGB color, is provided. And then color density (From standard color sample and RGB color (From pre-scale paper is found out the relation by Photoshop program and multiple regression theory using. The formula is applied to compare with defect so as to find out the suitable color density (Defects reducing. The solving solutions is provided including the gap reduced adjustment between cooling plate and hot pressing machine before hot pressing process, the plate adjustment within specification in the preheat time and the pressing plate polishing in the pressure time. Results of study and solving are provide defect reduction from 24.4 percentage to 7.2 percentage of total study product.

  6. A simulation study of capacity utilization to predict future capacity for manufacturing system sustainability

    Science.gov (United States)

    Rimo, Tan Hauw Sen; Chai Tin, Ong

    2017-12-01

    Capacity utilization (CU) measurement is an important task in a manufacturing system, especially in make-to-order (MTO) type manufacturing system with product customization, in predicting capacity to meet future demand. A stochastic discrete-event simulation is developed using ARENA software to determine CU and capacity gap (CG) in short run production function. This study focused on machinery breakdown and product defective rate as random variables in the simulation. The study found that the manufacturing system run in 68.01% CU and 31.99% CG. It is revealed that machinery breakdown and product defective rate have a direct relationship with CU. By improving product defective rate into zero defect, manufacturing system can improve CU up to 73.56% and CG decrease to 26.44%. While improving machinery breakdown into zero breakdowns will improve CU up to 93.99% and the CG decrease to 6.01%. This study helps operation level to study CU using “what-if” analysis in order to meet future demand in more practical and easier method by using simulation approach. Further study is recommended by including other random variables that affect CU to make the simulation closer with the real-life situation for a better decision.

  7. Manufacturing cost study on the ion sources for the Mirror Fusion Test Facility

    International Nuclear Information System (INIS)

    A study of the cost of manufacturing 48 ion sources for the Mirror Fusion Test Facility is described. The estimate is built up from individual part costs and assembly operation times for the 80 kV prototype source constructed by LLL and described by LLL drawings furnished during December 1978. Recommendations for cost reduction are made

  8. Wood Dust in Joineries and Furniture Manufacturing : An Exposure Determinant and Intervention Study

    NARCIS (Netherlands)

    Douwes, Jeroen; Cheung, Kerry; Prezant, Bradley; Sharp, Mark; Corbin, Marine; McLean, Dave; 't Mannetje, Andrea; Schlunssen, Vivi; Sigsgaard, Torben; Kromhout, Hans; LaMontagne, Anthony D; Pearce, Neil; McGlothlin, James D

    Objectives: To assess wood dust exposures and determinants in joineries and furniture manufacturing and to evaluate the efficacy of specific interventions on dust emissions under laboratory conditions. Also, in a subsequent follow-up study in a small sample of joinery workshops, we aimed to develop,

  9. A Bibliography of Empirical Studies of School Boards, 1952-1968.

    Science.gov (United States)

    Charters, W. W., Jr.

    This bibliography lists 223 journal articles, unpublished master's and doctoral dissertations, bulletins, books, and monographs on the behavior, attributes, attitudes, or interaction of school board members. Included are reports of investigations that offer bases for generalizable propositions regarding the local school board's part in district…

  10. Board game

    International Nuclear Information System (INIS)

    Brennan, N.S.

    1982-01-01

    A board game comprises a board, a number of counters and two dice. The board is marked to provide a central area, representing the nucleus of an atom, and six or more annular rings extending concentrically around the central area, the rings being divided into 2,8,18,32,48 and 72 squares. Each ring represents an electron shell, and some of the squares are numbered, the number representing the atomic number of different elements. (author)

  11. Feasibility study on the use of groupware support for NASA source evaluation boards

    Science.gov (United States)

    Bishop, Peter C.; Yoes, Cissy

    1991-01-01

    Groupware is a class of computer based systems that support groups engaged in a common task (or goal) and that provide an interface to a shared environment. A potential application for groupware is the source evaluation board (SEB) process used in the procurement of government contracts. This study was undertaken to (1) identify parts of the SEB process which are candidates for groupware supports; and (2) identify tools which could be used to support the candidate process. Two processes of the SEB were identified as good candidates for groupware support: (1) document generation - a coordination and communication process required to present and document the findings of an SEB; and (2) group decision making - a highly analytical and integrative decision process requiring a clear and supportable outcome.

  12. Applying Value Stream Mapping Technique for Production Improvement in a Manufacturing Company: A Case Study

    Science.gov (United States)

    Jeyaraj, K. L.; Muralidharan, C.; Mahalingam, R.; Deshmukh, S. G.

    2013-01-01

    The purpose of this paper is to explain how value stream mapping (VSM) is helpful in lean implementation and to develop the road map to tackle improvement areas to bridge the gap between the existing state and the proposed state of a manufacturing firm. Through this case study, the existing stage of manufacturing is mapped with the help of VSM process symbols and the biggest improvement areas like excessive TAKT time, production, and lead time are identified. Some modifications in current state map are suggested and with these modifications future state map is prepared. Further TAKT time is calculated to set the pace of production processes. This paper compares the current state and future state of a manufacturing firm and witnessed 20 % reduction in TAKT time, 22.5 % reduction in processing time, 4.8 % reduction in lead time, 20 % improvement in production, 9 % improvement in machine utilization, 7 % improvement in man power utilization, objective improvement in workers skill level, and no change in the product and semi finished product inventory level. The findings are limited due to the focused nature of the case study. This case study shows that VSM is a powerful tool for lean implementation and allows the industry to understand and continuously improve towards lean manufacturing.

  13. Prototype performance studies of a Full Mesh ATCA-based General Purpose Data Processing Board

    CERN Document Server

    Okumura, Yasuyuki; Liu, Tiehui Ted; Yin, Hang

    2013-01-01

    High luminosity conditions at the LHC pose many unique challenges for potential silicon based track trigger systems. One of the major challenges is data formatting, where hits from thousands of silicon modules must first be shared and organized into overlapping eta-phi trigger towers. Communication between nodes requires high bandwidth, low latency, and flexible real time data sharing, for which a full mesh backplane is a natural solution. A custom Advanced Telecommunications Computing Architecture data processing board is designed with the goal of creating a scalable architecture abundant in flexible, non-blocking, high bandwidth board to board communication channels while keeping the design as simple as possible. We have performed the first prototype board testing and our first attempt at designing the prototype system has proven to be successful. Leveraging the experience we gained through designing, building and testing the prototype board system we are in the final stages of laying out the next generatio...

  14. A case study on Simulation and Design optimization to improve Productivity in cooling tower manufacturing industry

    Science.gov (United States)

    Pranav Nithin, R.; Gopikrishnan, S.; Sumesh, A.

    2018-02-01

    Cooling towers are the heat transfer devices commonly found in industries which are used to extract the high temperature from the coolants and make it reusable in various plants. Basically, the cooling towers has Fills made of PVC sheets stacked together to increase the surface area exposure of the cooling liquid flowing through it. This paper focuses on the study in such a manufacturing plant where fills are being manufactured. The productivity using the current manufacturing method was only 6 to 8 fills per day, where the ideal capacity was of 14 fills per day. In this plant manual labor was employed in the manufacturing process. A change in the process modification designed and implemented will help the industry to increase the productivity to 14. In this paper, initially the simulation study was done using ARENA the simulation package and later the new design was done using CAD Package and validated using Ansys Mechanical APDL. It’s found that, by the implementation of the safe design the productivity can be increased to 196 Units.

  15. Dilemmas of Transfer Pricing Comparability Analysis in Manufacturing Entities. Polish-Czech Case Study

    Science.gov (United States)

    Sulik-Górecka, Aleksandra

    2018-06-01

    Modern manufacturing entities often operate in capital groups, and their role is sometimes limited to the function of cost centers. From the legal point of view, however, they are separate entities obliged to apply transfer pricing regulations. Meeting the requirements of the arm's length principle can be very difficult at this time, given the relationships and conflicts of interest in the capital group. Complexity increases in capital groups operating in different countries, due to differences in tax regulations. The main purpose of the paper is to demonstrate that the need to valuate the sale of finished goods to a manufacturing entity, which is a subject to a different tax jurisdiction, may lead to a problem of compliance with the arm's length principle. In addition, the paper proposes a methodology for comparability analysis that may be used by manufacturing entities to defend conditions of setting transfer pricing. The paper presents the different functional profiles of manufacturing entities and points out the difficulties that they may encounter when preparing the comparability analysis. It has also been noted that there are differences in transfer pricing regulations in different countries, for example by analyzing Polish and Czech regulations. The lack of uniform benchmarking legislation can cause inconsistencies in the selection of comparable data, resulting in differences in transfer pricing. The paper uses the method of legal regulation review and analysis of results of published studies concerning the scope of transfer pricing and comparability analysis. The paper also adopts a case study analysis.

  16. Adoption of Technology as a Response Strategy to Globalization: A Study of Manufacturing Firms in Kenya

    OpenAIRE

    Solomon Kinyanjui; Margaret A. Oloko; Hazel G. Gachunga; Beatrice G. Gathondu

    2014-01-01

    Globalization affects local and international firms in many ways. Studies have shown that factors in the internal as well as external environments of firms influence the rate to which globalization will affect them. On the local scene however, no known studies have been done on the response of manufacturing firms to counter globalization. In addition, since the concept of globalization is multidimensional and its influence is varied in nature, this study aimed at investigating how manufacturi...

  17. A comparative study of the economic effectiveness of Polish manufacturers of mushroom compost

    Directory of Open Access Journals (Sweden)

    Krzysztof Łobos

    2012-09-01

    Full Text Available In this study the results of the economic efficiency of manufacturers of mushroom compost have been presented. The economic efficiency is operationalized in the following research by selected indicators of efficiency, rotation, and synthetic indicator Z. The main purpose of the study is an analysis of the economic efficiency of companies in the branch development prediction context. The study uses data from the Official Journal of the Republic of Poland “Monitor Polski B”.

  18. Does Board Diversity Really Matter?

    DEFF Research Database (Denmark)

    Rose, Caspar; Munch-Madsen, Peter; Funch, Maja

    2013-01-01

    We study the impact of female board representation as well as citizenship on corporate performance based on a sample of the largest listed firms in the Nordic countries as well as Germany. We also seek to determine the variation of board structures using factor analysis. We find no support for any...... performance impact relating to female board representation. However, we find an impact of board citizenship on performance showing that board members with a background from common law have a significant positive influence on corporate performance measured as ROA, ROE and ROCE. Consistent with other studies we...... also document that large boards impact corporate performance negatively. Moreover we also show that data set on boards can be explained by four underlying factors. This article adds insight to board determinants of corporate performance as well as the classification of board variation. Specifically...

  19. Study on Manufacturing Process of Hollow Main Shaft by Open Die Forging

    International Nuclear Information System (INIS)

    Kwon, Yong Chul; Kang, Jong Hun; Kim, Sang Sik

    2016-01-01

    The main shaft is one of the key components connecting the rotor hub and gear box of a wind power generator. Typically, main shafts are manufactured by open die forging method. However, the main shaft for large MW class wind generators is designed to be hollow in order to reduce the weight. Additionally, the main shafts are manufactured by a casting process. This study aims to develop a manufacturing process for hollow main shafts by the open die forging method. The design of a forging process for a solid main shaft and hollow shaft was prepared by an open die forging process design scheme. Finite element analyses were performed to obtain the flow stress by a hot compression test at different temperature and strain rates. The control parameters of each forging process, such as temperature and effective strain, were obtained and compared to predict the suitability of the hollow main shaft forging process. Finally, high productivity reflecting material utilization ratio, internal quality, shape, and dimension was verified by the prototypes manufactured by the proposed forging process for hollow main shafts

  20. Study on Manufacturing Process of Hollow Main Shaft by Open Die Forging

    Energy Technology Data Exchange (ETDEWEB)

    Kwon, Yong Chul [Gyeongnam Technopark, Changwon (Korea, Republic of); Kang, Jong Hun [Jungwon Univ., Goisan (Korea, Republic of); Kim, Sang Sik [Gyeongsang Natiional Univ., Jinju (Korea, Republic of)

    2016-02-15

    The main shaft is one of the key components connecting the rotor hub and gear box of a wind power generator. Typically, main shafts are manufactured by open die forging method. However, the main shaft for large MW class wind generators is designed to be hollow in order to reduce the weight. Additionally, the main shafts are manufactured by a casting process. This study aims to develop a manufacturing process for hollow main shafts by the open die forging method. The design of a forging process for a solid main shaft and hollow shaft was prepared by an open die forging process design scheme. Finite element analyses were performed to obtain the flow stress by a hot compression test at different temperature and strain rates. The control parameters of each forging process, such as temperature and effective strain, were obtained and compared to predict the suitability of the hollow main shaft forging process. Finally, high productivity reflecting material utilization ratio, internal quality, shape, and dimension was verified by the prototypes manufactured by the proposed forging process for hollow main shafts.

  1. Snap-lock bags with red band: A study of manufacturing characteristics, thermal and chemical properties.

    Science.gov (United States)

    Sim, Yvonne Hui Ying; Koh, Alaric C W; Lim, Shing Min; Yew, Sok Yee

    2015-10-01

    Drug packaging is commonly submitted to the Forensic Chemistry and Physics Laboratory of the Health Sciences Authority, Singapore, for examination. The drugs seized are often packaged in plastic bags. These bags are examined for linkages to provide law enforcement with useful associations between the traffickers and drug abusers. The plastic bags submitted may include snap-lock bags, some with a red band located above the snap-lock closure and some without. Current techniques for examination involve looking at the physical characteristics (dimensions, thickness and polarising patterns) and manufacturing marks of these bags. In cases where manufacturing marks on the main body of the bags are poor or absent, the manufacturing characteristics present on the red band can be examined. A study involving approximately 1000 bags was conducted to better understand the variations in the manufacturing characteristics of the red band. This understanding is crucial in helping to determine associations/eliminations between bags. Two instrumental techniques, namely differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FT-IR) were explored to evaluate the effectiveness of examining the chemical composition to discriminate the bags. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  2. Study on the Melting Point Depression of Tin Nanoparticles Manufactured by Modified Evaporation Method

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Hyun Jin; Beak, Il Kwon; Kim, Kyu Han; Jang, Seok Pil [Korea Aerospace University, Goyang (Korea, Republic of)

    2014-08-15

    In the present study, the melting temperature depression of Sn nanoparticles manufactured using the modified evaporation method was investigated. For this purpose, a modified evaporation method with mass productivity was developed. Using the manufacturing process, Sn nanoparticles of 10 nm size was manufactured in benzyl alcohol solution to prevent oxidation. To examine the morphology and size distribution of the nanonoparticles, a transmission electron microscope was used. The melting temperature of the Sn nanoparticles was measured using a Differential scanning calorimetry (DSC) which can calculate the endothermic energy during the phase changing process and an X-ray photoelectron spectroscopy (XPS) used for observing the manufactured Sn nanoparticle compound. The melting temperature of the Sn nanoparticles was observed to be 129 ℃, which is 44 ℃ lower than that of the bulk material. Finally, the melting temperature was compared with the Gibbs Thomson and Lai's equations, which can predict the melting temperature according to the particle size. Based on the experimental results, the melting temperature of the Sn nanoparticles was found to match well with those recommended by the Lai's equation.

  3. A Study on Lean Manufacturing Practice Carried Out for Axle Housing Plant

    Directory of Open Access Journals (Sweden)

    Rishi J. P.

    2018-01-01

    Full Text Available Lean Manufacturing is a way to deal with the elimination of waste through persistent change within the system. The assembling units in India should likewise hope to take its preferences. The Industries are energetically following the Lean assembling strategies to reduce waste and cost. The present work is the study of a manufacturing process for axle housing and to decide how Lean manufacturing process carried out for axle housing plant to improve productivity. The new shot peening machine was installed in a heat treatment plant of a housing line in an automobile rear axle assembly plant and material handling time from storage to this new machine was more and this increased lead time subsequently. To reduce this Kaizens technique was employed and a direct gravity conveyor was chosen and installed between two work stations and the part was directly fed to the new machine installed and this reduces the material handling time considerably. A cost analysis was done to realize the benefits of implementing this lean technique. Therefore reducing lead time and increasing productivity is the Prime benefits of lean manufacturing practices like lean assembly.

  4. A comparative study of additive and subtractive manufacturing for dental restorations.

    Science.gov (United States)

    Bae, Eun-Jeong; Jeong, Il-Do; Kim, Woong-Chul; Kim, Ji-Hwan

    2017-08-01

    Digital systems have recently found widespread application in the fabrication of dental restorations. For the clinical assessment of dental restorations fabricated digitally, it is necessary to evaluate their accuracy. However, studies of the accuracy of inlay restorations fabricated with additive manufacturing are lacking. The purpose of this in vitro study was to evaluate and compare the accuracy of inlay restorations fabricated by using recently introduced additive manufacturing with the accuracy of subtractive methods. The inlay (distal occlusal cavity) shape was fabricated using 3-dimensional image (reference data) software. Specimens were fabricated using 4 different methods (each n=10, total N=40), including 2 additive manufacturing methods, stereolithography apparatus and selective laser sintering; and 2 subtractive methods, wax and zirconia milling. Fabricated specimens were scanned using a dental scanner and then compared by overlapping reference data. The results were statistically analyzed using a 1-way analysis of variance (α=.05). Additionally, the surface morphology of 1 randomly (the first of each specimen) selected specimen from each group was evaluated using a digital microscope. The results of the overlap analysis of the dental restorations indicated that the root mean square (RMS) deviation observed in the restorations fabricated using the additive manufacturing methods were significantly different from those fabricated using the subtractive methods (Padditive manufacturing methods (P=.466). Similarly, no significant differences were found between wax and zirconia, the subtractive methods (P=.986). The observed RMS values were 106 μm for stereolithography apparatus, 113 μm for selective laser sintering, 116 μm for wax, and 119 μm for zirconia. Microscopic evaluation of the surface revealed a fine linear gap between the layers of restorations fabricated using stereolithography apparatus and a grooved hole with inconsistent weak scratches

  5. Adversity Quotient in Mathematics Learning (Quantitative Study on Students Boarding School in Pekanbaru

    Directory of Open Access Journals (Sweden)

    Zubaidah Amir MZ

    2017-08-01

    Full Text Available The aim of this study is to analyze students’ Adversity Quotient (AQ in mathematics learning viewed from gender aspect. This study is quantitative survey study on students in MTs Al-Munawarah Boarding School, Pekanbaru. The subjects of study are 8th grade students consisting of  75 girls and 63 boys. Data are collected by AQ scale and analyzed with statistic descriptive and inferential (test-t. The indicator of AQ consist of control, origin, ownership, reach and endurance.  The result of descriptive analysis shows that there is difference in mean of each indicator for two groups, but analysis of test-t  shows that there is no difference in students’ mathematical AQ for two group of gender. Through variance test, students’ mathematical AQ in two groups is homogeneous. The indicator of AQ in boys which is categorized as high are endurance and reach. While, the indicator in girls is aspect of control. This study contributes to literature study in identifying students’ AQ and the effort done to enhance students’ AQ in mathematics learning.

  6. Corporate Social Responsibility in Malaysian Apparel Manufacturing Industry: A Study on Corporate Social Responsibility Website Reporting

    OpenAIRE

    Ramakrishnan, Suresh; Hishan, Sanil S.; Kanjanapathy, Malini

    2016-01-01

    ABSTRACT:A well planned and implemented Corporate Social Responsibility (CSR) programs could give any company a competitive advantage over its competitors. However, the way it is communicated to its stakeholders will be one of the deciding factors. This study examines how the WRAP certified apparel manufacturers in Malaysia communicate their CSR programs on their company website. This study identifies the dimensions of CSR they focus while they communicate their CSR initiatives to their stake...

  7. 75 FR 48683 - Human Studies Review Board (HSRB); Notification of a Public Teleconference To Review Draft Final...

    Science.gov (United States)

    2010-08-11

    ... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2010-0617; FRL-9188-3] Human Studies Review Board (HSRB); Notification of a Public Teleconference To Review Draft Final Report From the June 23, 2010 HSRB Meeting AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The EPA Human Studies...

  8. 75 FR 73078 - Human Studies Review Board (HSRB); Notification of a Public Teleconference To Review Draft Report...

    Science.gov (United States)

    2010-11-29

    ... ENVIRONMENTAL PROTECTION AGENCY [EPA-HQ-ORD-2010-0919; FRL-9232-5] Human Studies Review Board (HSRB); Notification of a Public Teleconference To Review Draft Report From the October 27-28, 2010 HSRB Meeting AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The EPA Human Studies...

  9. The Competitive edge: research priorities for U.S. manufacturing

    National Research Council Canada - National Science Library

    National Research Council Staff; Commission on Engineering and Technical Systems; Board on Manufacturing and Engineering Design; Division on Engineering and Physical Sciences; National Research Council; National Academy of Sciences

    1991-01-01

    ... Manufacturing Studies Board Commission on Engineering and Technical Systems National Research Council NATIONAL ACADEMY PRESS Washington, D.C. 1991 i Copyrightthe cannot be not from book, paper however, version for formatting, original authoritative the typesetting-specific the as from created publication files XML from other this and of...

  10. The competitive edge: research priorities for U.S. manufacturing

    National Research Council Canada - National Science Library

    National Research Council Staff; Commission on Engineering and Technical Systems; Board on Manufacturing and Engineering Design; Division on Engineering and Physical Sciences; National Research Council; National Academy of Sciences

    1991-01-01

    ... Manufacturing Studies Board Commission on Engineering and Technical Systems National Research Council NATIONAL ACADEMY PRESS Washington, D.C. 1991 i Copyrightthe cannot be not from book, paper however, version for formatting, original authoritative the typesetting-specific the as from created publication files XML from other this and of...

  11. DEVELOPMENT OF INFORMATION TECHNOLOGY STRATEGIC PLANNING FOR MANUFACTURING INDUSTRY (CASE STUDY: PT MCM

    Directory of Open Access Journals (Sweden)

    Leonardus Hardjo

    2013-10-01

    Full Text Available IT Department in PT MCM has to carry out the duties and functions of developing solution to support the business unit in their operation and gain some benefits which should be obtained by using IT in manufacturing such as increasing efficiency, improving the effectivity in making decision and helping to promote the products. This study aims to design information technology strategic planning in accordance with the strategic plan. The research method is using the IT Strategic Planning framework of Alex Cullen and Marc Cecere. This study uses SWOT and IT Balanced Scorecard to analyze the needs of IT at PT MCM. The results of this study are recommended strategic steps to optimize the implementation of IT in the company to improve the performance from IT division to obtain the benefits by implementing IT in manufacturing and to form IT Blueprint, which is part of the information technology strategic plan in PT MCM.

  12. The effectiveness of supervisory boards: an exploratory study of challenges in Dutch boardrooms

    NARCIS (Netherlands)

    Gregory Maassen; Pieter-Jan Bezemer; dr. Stefan Peij

    2012-01-01

    Triggered by highly publicised corporate scandals, changing societal expectations and the collapse of financial markets, the roles of boards of directors have changed significantly in safeguarding the interest of shareholders and other stakeholders. Yet, relatively little is known about contemporary

  13. On-board sound intensity tire-pavement noise study in North Carolina.

    Science.gov (United States)

    2011-12-01

    "This research investigated tire-pavement noise on various types of pavements across North Carolina by using On- : Board Sound Intensity (OBSI) method. To mitigate traffic noise, quieter pavement may provide advantages that : noise barriers cannot. T...

  14. Indoor Pollution Emissions from Building Materials; Case of Study: Gypsum Boards Indoor Pollution Emissions from Building Materials; Case of Study: Gypsum Boards

    Directory of Open Access Journals (Sweden)

    Silverio Hernández Moreno

    2012-02-01

    Full Text Available Este reporte presenta una evaluación de las emisiones de materiales de construcción, al interior de los edificios que pueden causar daño a la salud de los usuarios durante la ocupación, pues emiten sustancias tóxicas al interior de los edificios. Este reporte presenta un caso de studio que evalúa a los tableros de yeso, frecuentemente usados en la construcción de muros divisorios y falsos plafones. La parte experimental se basa en un espacio tridimensional el cual simula un cuarto de cualquier tipo de edificación; por ejemplo: un salón de clases u oficina. Las condiciones ambientales al interior, tales como: ventilación, temperatura y humedad, afectan directamente las emisiones de sustancias químicas por los materiales de construcción. La metodología se basa en la comparación de materiales convencionales y materiales alternativos con distinta composición y similares características, en donde usamos métodos de prueba, condiciones ambientales, instrumentos y herramientas similares. Este es un estudio muy importante para entender los problemas relacionadoscon la contaminación ambiental, específicamente del aire y sus efectos en el interior de los edificios, y que se relaciona directamente con la salud pública e indirectamente con los sistemas constructivos y la selección de materiales en los edificios. Las pruebas concluyen que los materiales alternativos (de contenido reciclado son mejores que los tradicionales, porque reducen la contaminación del aire al interior de los edificios. This report presents an evaluation of emissions from indoor building materials that may cause health damage to the people who occupy the building, since these materials emit toxic chemicals into the air and indoor surfaces. This report presents a case study which evaluates Gypsum Boards, frequently used in the construction of dividing walls and ceilings. The experimental part of this report is based on a three-dimensional space that simulates a

  15. Approaches to facilitate institutional review board approval of multicenter research studies.

    Science.gov (United States)

    Marsolo, Keith

    2012-07-01

    Gaining Institutional Review Board (IRB) approval for a multicenter research study can be a lengthy and time-consuming process. It can increase the complexity of consent forms, decreasing patient understanding and lowering recruitment numbers. It also leads to increased costs through the duplication of effort. This paper examines some of the strategies used to streamline the IRB review process for multicenter studies and provides examples used by 2 existing multicenter comparative effectiveness research networks. A literature search was conducted to identify sources that described the challenges and potential strategies to facilitate multicenter IRB approval. The most promising avenues were identified and included in this review. Phone interviews were conducted with the Principal Investigators and Project Managers of 2 successful multicenter research networks to learn their "keys to success" and their lessons learned. Three strategies were identified that held the most promise: working with IRBs before submission, the use of central and/or federated IRBs, and the establishment of an umbrella protocol. Each of these strategies was used to some degree by the case study projects. Although the approaches documented here can help streamline the IRB approval process, they are not a "silver bullet." Because some of these approaches are still relatively new, empirical data are sparse. However, it is believed that they will significantly reduce the administrative burden of the project as a whole and lead to a decrease in the overall time to protocol approval.

  16. A study on manufacturing and quality control technology of DUPIC fuel

    International Nuclear Information System (INIS)

    Yang, Myung Seung; Park, H. S.; Lee, Y. W.

    1997-09-01

    A series of experiments are performed to verify the manufacturability of DUPIC fuel and its performance by use of HANARO test reactor. Major works performed during this research period are : analysis of manufacturing process of DUPIC fuel, fabrication technology development such as development of disassembly and decladding method of spent PWR fuel, study on the OREOX process using simulated high burnup fuel, weldability of end cap weld, and development of fabrication equipment including the conceptual and detailed design of DUPIC equipment mainly for the powder preparation, pelletization and fuel element fabrication. A study on the material properties of DUPIC fuel and performance analysis method using irradiation of test fuel was also performed. (author). 91 refs., 274 tabs., 254 figs

  17. A study on manufacturing and quality control technology of DUPIC fuel

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Myung Seung; Park, H. S.; Lee, Y. W. [and others

    1997-09-01

    A series of experiments are performed to verify the manufacturability of DUPIC fuel and its performance by use of HANARO test reactor. Major works performed during this research period are : analysis of manufacturing process of DUPIC fuel, fabrication technology development such as development of disassembly and decladding method of spent PWR fuel, study on the OREOX process using simulated high burnup fuel, weldability of end cap weld, and development of fabrication equipment including the conceptual and detailed design of DUPIC equipment mainly for the powder preparation, pelletization and fuel element fabrication. A study on the material properties of DUPIC fuel and performance analysis method using irradiation of test fuel was also performed. (author). 91 refs., 274 tabs., 254 figs.

  18. Productivity improvement in the production line with lean manufacturing approach: case study PT. XYZ

    Directory of Open Access Journals (Sweden)

    diah Halimatussa’

    2018-01-01

    Full Text Available The increaseing productivity is one of the competitive strategies that can be applied in a company in order to survive in an intense competitive presure. PT. XYZ is a textile industry manufacturing golf gloves and caddy bag. Every day, the company has a production target of 600 pieces per line. However, the desired target is not achieved that it will affect the delay in delivery of products to customers. In this research, a case study on implementing value stream mapping and Kaizen as the lean manufacturing concept is reported. The purpose of this study is to map the current production line, analyse and design the future value stream mapping by eliminating waste occured. It is obtained a lead time reduction as much as 440.4 seconds through eliminating 17 non-value added activities. Then, the output can be increased up to 21% which is equal to 502 pieces.

  19. Environmental Management as a Strategic Capability: a Study on the Furniture Manufacturing Cluster of Southern Brazil

    Directory of Open Access Journals (Sweden)

    Janielen Pissolatto Deliberal

    2016-01-01

    Full Text Available The incorporation of company programs aimed at sustainability strategies contributes to a balance between economic growth and the use of natural resources. This issue is not exclusive for companies from developed markets. Companies from emerging markets also need to find a way to achieve sustainable practices and organizational performance at the same time. In this context, the aim of this study was to analyze whether environmental management can be considered as a strategic capability, contributing positively to the performance of the manufacturing companies belonging to the Furniture Manufacturing Cluster of Southern Brazil (FMCSB. In order to achieve our objective, we performed a quantitative study through a survey. The sample collected data from 162 companies. Based on univariate and multivariate analysis the results suggest that environmental management can be considered as a strategic capability for the FMCSB since environmental practices are significantly related to organizational performance.

  20. Printed Wiring Board Cleaner Technologies Substitutes Assessment: Making Holes Conductive

    Science.gov (United States)

    This document presents comparative risk, competitiveness, and resource requirements on technologies for performing the “making holes conductive” function during printed wiring board manufacturing.

  1. Manufacturing network evolution

    DEFF Research Database (Denmark)

    Yang, Cheng; Farooq, Sami; Johansen, John

    2011-01-01

    Purpose – This paper examines the effect of changes at the manufacturing plant level on other plants in the manufacturing network and also investigates the role of manufacturing plants on the evolution of a manufacturing network. Design/methodology/approach –The research questions are developed...... different manufacturing plants in the network and their impact on network transformation. Findings – The paper highlights the dominant role of manufacturing plants in the continuously changing shape of a manufacturing network. The paper demonstrates that a product or process change at one manufacturing...... by identifying the gaps in the reviewed literature. The paper is based on three case studies undertaken in Danish manufacturing companies to explore in detail their manufacturing plants and networks. The cases provide a sound basis for developing the research questions and explaining the interaction between...

  2. Studies on the Wood-Based Furniture, Leather Products and Footwear Manufacturing Industries in the Philippines

    OpenAIRE

    Poblador, Niceto; Solis, Adriano; Ybanez, Roy; Aragon, Bienvenido

    1983-01-01

    This paper aims to develop both the micro and macro data on the entire range of socioeconomic, managerial and technical issues faced by the wood-based furniture, footwear and leather tanning industry. The studies are intended to provide an initial base for policy formulation and implementation and to evolve a set of relevant guidelines for managerial and technical decisions. Findings show that the wood-based furniture industry is characterized by relative ease of entry that allows manufacture...

  3. Women workers in male dominated industrial manufacturing organisations: Contrasting workplace case studies from Australia

    OpenAIRE

    Burgess, John; Henderson, Lindy; Strachan, Glenda

    2005-01-01

    This study compared women's roles, expectations and experiences in two comparable, male dominated industrial manufacturing companies in Australia. Both organisations are subject to legislated equal opportunity program and reporting requirements. The research was conducted to examinee the differences between what is submitted in their EEO reports and the experience of women workers in the organisations. Good jobs and poor jobs existed in the same legislative and industrial framework and in the...

  4. Flexural properties of laminated veneer lumber manufactured from ultrasonically rated red maple veneer : a pilot study.

    Science.gov (United States)

    Xiping Wang; Robert J. Ross; Brian K. Brashaw; Steven A. Verhey; John W. Forsman; John R. Erickson

    2003-01-01

    The study described in this report was conducted to examine the flexural properties of laminated veneer lumber (LVL) manufactured from red maple veneer. Ultrasonically rated veneer, which was peeled from low value red maple saw-logs, was fabricated into 1/2-in.-(1.3-cm-) and 2-in.-(5-cm-) thick LVL billets. The flexural properties of the billets and of corresponding...

  5. Mobile Manufacturer or Service provider? An Empirical Study on Consumers’ Adoption Intention

    OpenAIRE

    Feng Hu; Xiaoyi Du; Yong Liu

    2010-01-01

    As mobile manufacturers today seek to attract consumers by increasingly integrating mobile services into their products, little research is available regarding whether and to what degree this new feature of mobile phone would motivate consumers’ purchase intention.Concerning m-learning, this study investigates the relationship among users’ intentions to adopt mobile service, service-enabled-phone as well as intention to pay for the new phone functionality. Based on 209 useful responses, this ...

  6. Advances in clinical NK cell studies: Donor selection, manufacturing and quality control

    OpenAIRE

    Koehl, U.; Kalberer, C.; Spanholtz, J.; Lee, D. A.; Miller, J. S.; Cooley, S.; Lowdell, M.; Uharek, L.; Klingemann, H.; Curti, A.; Leung, W.; Alici, E.

    2015-01-01

    ABSTRACT Natural killer (NK) cells are increasingly used in clinical studies in order to treat patients with various malignancies. The following review summarizes platform lectures and 2013?2015 consortium meetings on manufacturing and clinical use of NK cells in Europe and United States. A broad overview of recent pre-clinical and clinical results in NK cell therapies is provided based on unstimulated, cytokine-activated, as well as genetically engineered NK cells using chimeric antigen rece...

  7. A Case Study Exploring the Use of GarageBand[TM] and an Electronic Bulletin Board in Preservice Music Education

    Science.gov (United States)

    Vratulis, Vetta; Morton, Charlene

    2011-01-01

    This qualitative research study is an exploration of the merit and shortcomings of using a combination of the music software GarageBand[TM] and an electronic bulletin board to facilitate musical and peer learning in a 3-month elementary music methods curriculum and instruction course. A pedagogical objective of this assignment was to increase the…

  8. Does the Glass Ceiling Exist? A Longitudinal Study of Women’s Progress on French Corporate Boards

    OpenAIRE

    Rey Dang; Duc Khuong Nguyen; Linh-Chi Vo

    2014-01-01

    In this article, we conduct a longitudinal study of women’s progress on French corporate boards of directors. We particularly focus on the extent to which women directors have circumvented the glass ceiling. Using a sample of SBF 120 companies over a 10

  9. Comparative study on copper leaching from waste printed circuit boards by typical ionic liquid acids.

    Science.gov (United States)

    Chen, Mengjun; Huang, Jinxiu; Ogunseitan, Oladele A; Zhu, Nengming; Wang, Yan-min

    2015-07-01

    Waste printed circuit boards (WPCBs) are attracting increasing concerns because the recovery of its content of valuable metallic resources is hampered by the presence of hazardous substances. In this study, we used ionic liquids (IL) to leach copper from WPCBs. [BSO3HPy]OTf, [BSO3HMIm]OTf, [BSO4HPy]HSO4, [BSO4HMim]HSO4 and [MIm]HSO4 were selected. Factors that affect copper leaching rate were investigated in detail and their leaching kinetics were also examined with the comparison of [Bmim]HSO4. The results showed that all six IL acids could successfully leach copper out, with near 100% recovery. WPCB particle size and leaching time had similar influences on copper leaching performance, while IL acid concentration, hydrogen peroxide addition, solid to liquid ratio, temperature, showed different influences. Moreover, IL acid with HSO4(-) was more efficient than IL acid with CF3SO3(-). These six IL acids indicate a similar behavior with common inorganic acids, except temperature since copper leaching rate of some IL acids decreases with its increase. The results of leaching kinetics studies showed that diffusion plays a more important role than surface reaction, whereas copper leaching by inorganic acids is usually controlled by surface reaction. This innovation provides a new option for recovering valuable materials such as copper from WPCBs. Copyright © 2015 Elsevier Ltd. All rights reserved.

  10. How body balance influences political party evaluations. A Wii balance board study.

    Directory of Open Access Journals (Sweden)

    Katinka eDijkstra

    2012-12-01

    Full Text Available Embodied cognition research has shown how actions or body positions may affect cognitive processes, such as autobiographical memory retrieval or judgments. The present study examined the role of body balance (to the left or the right in participants on their attributions to political parties. Participants thought they stood upright on a Wii™ Balance Board, while they were actually slightly tilted to the left or the right. Participants then ascribed fairly general political statements to one of ten political parties that are represented in the Dutch House of Representatives. Results showed a significant interaction of congruent leaning direction with left- or right wing party attribution. When the same analyses were performed with the political parties being divided into affiliations to the right, center, and left based on participants’ personal opinions rather than a ruling classification, no effects were found. The study provides evidence that conceptual metaphors are activated by manipulating body balance implicitly. Moreover, people’s judgments may be colored by seemingly trivial circumstances such as standing slightly out of balance.

  11. How body balance influences political party evaluations: a wii balance board study.

    Science.gov (United States)

    Dijkstra, Katinka; Eerland, Anita; Zijlmans, Josjan; Post, Lysanne S

    2012-01-01

    Embodied cognition research has shown how actions or body positions may affect cognitive processes, such as autobiographical memory retrieval or judgments. The present study examined the role of body balance (to the left or the right) in participants on their attributions to political parties. Participants thought they stood upright on a Wii(™) Balance Board, while they were actually slightly tilted to the left or the right. Participants then ascribed fairly general political statements to one of 10 political parties that are represented in the Dutch House of Representatives. Results showed a significant interaction of congruent leaning direction with left- or right-wing party attribution. When the same analyses were performed with the political parties being divided into affiliations to the right, center, and left based on participants' personal opinions rather than a ruling classification, no effects were found. The study provides evidence that conceptual metaphors are activated by manipulating body balance implicitly. Moreover, people's judgments may be colored by seemingly trivial circumstances such as standing slightly out of balance.

  12. QUALITY CONTROL IN PRECAST PRODUCTION A case study on Tunnel Segment Manufacture

    Directory of Open Access Journals (Sweden)

    Yee Weng Cheong

    2005-01-01

    Full Text Available Quality control forms an integral part of precast production. An efficient quality system is most critical in the mass production of precast components in any project. In this study, the quality control system implemented in a precast factory is discussed. The precast factory is set up for the manufacture of large quantity of tunnel segments under a contract. Processes in the precast manufacture are discussed with respect to the control procedures in the quality inspection plan. The standard tests involved, roles of inspectors and corrective actions on-site are highlighted. Critical issues pertaining to the productivity and quality of precast production are reviewed. These include the quality of staff and maintenance, which could potentially affect the efficiency of the quality system. Some considerations should also be given to improve the workflow and productivity of the plant.

  13. Total Factor Productivity and Energy Intensity in Indian Manufacturing: A Cross-Sectional Study

    Directory of Open Access Journals (Sweden)

    Santosh Kumar Sahu

    2011-01-01

    Full Text Available The objective of the paper is to estimate the transcendental logarithmic production function and further study the determinants of total factor productivity (TFP of Indian manufacturing industries. The estimation of TFP is based on four inputs model, where apart from labour and capital, material and energy are the other two inputs. The findings of the paper suggest that labour and material inputs play major role as compared to the capital and energy input. Age of the firm, ownership, energy intensity, embodied and disembodied technology imports, research and development and exports were considered as the possible determinants of the TFP in the second stage regression. The finding of the estimates suggest that age of the firm, export intensity and disembodied technology import are positively related to the TFP, where ownership, energy intensity, embodied technology import and R&D intensity are negatively related to the TFP of the firms for Indian manufacturing.

  14. Study of Internal Channel Surface Roughnesses Manufactured by Selective Laser Melting in Aluminum and Titanium Alloys

    Science.gov (United States)

    Pakkanen, Jukka; Calignano, Flaviana; Trevisan, Francesco; Lorusso, Massimo; Ambrosio, Elisa Paola; Manfredi, Diego; Fino, Paolo

    2016-08-01

    Interest in additive manufacturing (AM) has gained considerable impetus over the past decade. One of the driving factors for AM success is the ability to create unique designs with intrinsic characteristics as, e.g., internal channels used for hydraulic components, cooling channels, and heat exchangers. However, a couple of the main problems in internal channels manufactured by AM technologies are the high surface roughness obtained and the distortion of the channel shape. There is still much to understand in these design aspects. In this study, a cylindrical geometry for internal channels to be built with different angles with respect to the building plane in AlSi10Mg and Ti6Al4V alloys by selective laser melting was considered. The internal surfaces of the channels produced in both materials were analyzed by means of a surface roughness tester and by optical and electron microscopy to evaluate the effects of the material and design choices.

  15. A case study on implementing lean ergonomic manufacturing systems (LEMS) in an automobile industry

    Science.gov (United States)

    Srinivasa Rao, P.; Niraj, Malay

    2016-09-01

    Lean manufacturing is a business strategy developed in Japan. In the present scenario, the global market is developing new techniques for getting more and more production rate with a good quality under low cost. In this context, human factors have to be given importance to their working conditions. The study demonstrates the adoption of ergonomic conditions in lean manufacturing for the improvement of organizational performance of the industry. The aim of ergonomics is to adapt the new techniques to their work in efficient and safe ways in order to optimize the human health conditions and increasing the production rate. By conducting survey on various disciplines and showed how the production rate and human ergonomic conditions is affected.

  16. Study of secular equilibrium reinstatement on UO2 pellets manufactured by AUC route

    International Nuclear Information System (INIS)

    Carnaval, João Paulo R.; Beltran, Dalton J.M.C.; Oliveira, Carlos A.

    2017-01-01

    The fuel assemblies manufactured by INB for Angra-1 power plant has axial blanket fuel rods which must be inspected due the columns formed by different enrichment pellets. The equipment used for inspection is built with a group of BGO scintillators detectors which measurement principle is based on the absorption of gamma rays emitted from Uranium decay. The commercial grade UF 6 used by INB is stored into cylinders type 30B. The uranium inside these cylinders is in secular equilibrium before the processing. It has been found that the AUC route causes the loss of that equilibrium because the UF 6 is volatilized from the cylinder and the uranium daughters remain in the container. As AUC is converted to powder and pellets, the secular equilibrium is restored through time. The purpose of this work is to present a study of the secular equilibrium reinstatement on UO 2 pellets manufactured by AUC route before being inspected on Rod Scanner. (author)

  17. Fibre laser cutting of polycaprolactone sheet for stents manufacturing: A feasibility study

    Science.gov (United States)

    Guerra, Antonio J.; Farjas, Jordi; Ciurana, Joaquim

    2017-10-01

    The role of the stent is temporary and it is limited to the intervention and shortly thereafter. Bioresorbable polymer stents were introduced to overcome this problem, making the stent manufacturing process rather difficult considering the complexity of the material. The stent forecast sale makes constant technology development necessary on this field. The adaptation of the laser manufacturing industry to these new materials is costly, thus further studies employing different sorts of lasers are necessary. This paper aims to explore the feasibility of 1.08 μm wavelength fibre laser to cut polycaprolactone sheet, which is especially interesting for long-term implantable devices, such as stents. The laser cut samples were analysed by Differential Scanning Calorimetry (DSC), Tensile Stress Test, and Optical Microscopy in order to study the effects of the laser process over the workpiece. The parameters measured were: taper angle, dimensional precision, material structure changes and mechanical properties changes. Results showed a dimensional precision above 95.75% with a taper angle lower than 0.033°. The laser ablation process has exhibited a minor influence upon material properties. Results exhibit the feasibility of fibre laser to cut polycaprolactone, making the fibre laser an alternative to manufacture stents.

  18. Process for production of high density/high performance binderless boards from whole coconut husk: Part 2: Coconut husk morphology, composition and properties

    NARCIS (Netherlands)

    Dam, van J.E.G.; Oever, van den M.J.A.; Keijsers, E.R.P.; Putten, van der J.C.; Anayron, C.; Josol, F.; Peralta, A.

    2006-01-01

    For production of compression moulded boards from whole coconut husk the auto-adhesive properties are derived from the intrinsic high lignin content. Since the properties of manufactured boards for a large part will depend on the input husk material these properties are studied here. Husks of

  19. Leukaemia incidence among workers in the shoe and boot manufacturing industry: a case-control study

    Directory of Open Access Journals (Sweden)

    Forand Steven P

    2004-08-01

    Full Text Available Abstract Background Previous reports have indicated an excess of leukaemia in Broome County, New York, particularly in the Town of Union. Surveillance of cancer incidence data indicates that a large proportion of these cases occurred among males ages 65 and older. Shoe and boot manufacturing has been the largest single industry in this area throughout much of the past century. Occupational studies from Europe suggest a link between leukaemia and employment in the shoe and boot manufacturing industry. However, researchers have not found a positive association between leukaemia and employment in the shoe industry among workers in the United States. Methods A matched case-control study was conducted to investigate the association between leukaemia incidence among males 65 and older and employment in the shoe and boot manufacturing industry. Thirty-six cases of leukaemia occurring between 1981–1990; among males age 65 and older; residing in the town of Union met the study case criteria. Death certificates were obtained for each of the cases. These were matched to death certificates of 144 controls on date of death and date of birth +/- 1 year. Death certificates were then examined to determine the employer and occupation of each study subject. Conditional logistic regression was used to determine the risk of leukaemia among those working in the industry. Results The risk of both leukaemia (OR = 1.47; 95% CI 0.70, 3.09 and acute myeloid leukaemia (OR = 1.19; 95% CI 0.33, 4.28 were elevated among those employed in the shoe and boot manufacturing industry, however neither was statistically significant. Conclusion The results, though suggestive of an association between leukaemia and employment in the shoe and boot manufacturing industry, were not statistically conclusive due mainly to limited study power. Several additional limitations may also have prevented the observance of more conclusive findings. Better exposure assessment, information on

  20. How US institutional review boards decide when researchers need to translate studies.

    Science.gov (United States)

    Klitzman, Robert

    2014-03-01

    Informed consent is crucial in research, but potential participants may not all speak the same language, posing questions that have not been examined concerning decisions by institutional review boards (IRBs) and research ethics committees' (RECs) about the need for researchers to translate consent forms and other study materials. Sixty US IRBs (every fourth one in the list of the top 240 institutions by The National Institutes of Health funding) were contacted, and leaders (eg, chairs) from 34 (response rate=57%) and an additional 12 members and administrators were interviewed. IRBs face a range of problems about translation of informed consent documents, questionnaires and manuals-what, when and how to translate (eg, for how many or what proportion of potential subjects), why to do so and how to decide. Difficulties can arise about translation of specific words and of broader cultural concepts regarding processes of informed consent and research, especially in the developing world. In these decisions, IRBs weigh the need for autonomy (through informed consent) and justice (to ensure fair distribution of benefits and burdens of research) against practical concerns about costs to researchers. At times IRBs may have to compromise between these competing goals. These data, the first to examine when and how IRBs/RECs require researchers to translate materials, thus highlight a range of problems with which these committees struggle, suggesting a need for further normative and empirical investigation of these domains, and consideration of guidelines to help IRBs deal with these tensions.

  1. Leaching Studies for Copper and Solder Alloy Recovery from Shredded Particles of Waste Printed Circuit Boards

    Science.gov (United States)

    Kavousi, Maryam; Sattari, Anahita; Alamdari, Eskandar Keshavarz; Fatmehsari, Davoud Haghshenas

    2018-06-01

    Printed circuit boards (PCBs) comprise various metals such as Cu, Sn, and Pb, as well as platinum group metals. The recovery of metals from PCBs is important not only due to the waste treatment but also for recycling of valuable metals. In the present work, the leaching process of Cu, Sn, and Pb from PCBs was studied using fluoroboric acid and hydrogen peroxide as the leaching agent and oxidant, respectively. Pertinent factors including concentration of acid, temperature, liquid-solid ratio, and concentration of oxidizing agent were evaluated. The results showed 99 pct of copper and 90 pct solder alloy were dissolved at a temperature of 298 K (25 °C) for 180 minutes using 0.6 M HBF4 for the particle size range of 0.15 to 0.4 mm. Moreover, solid/liquid ratio had insignificant effect on the recovery of metals. Kinetics analysis revealed that the chemical control regime governs the process with activation energy 41.25 and 38.9 kJ/mol for copper and lead leaching reactions, respectively.

  2. Seroepidemiologic Study of Pandemic (H1N1) 2009 during Outbreak in Boarding School, England

    Science.gov (United States)

    Johnson, Sandra; Hardelid, Pia; Raphaely, Nika; Hoschler, Katja; Bermingham, Alison; Abid, Muhammad; Pebody, Richard; Bickler, Graham; Watson, John; O’Moore, Éamonn

    2011-01-01

    We conducted a seroepidemiologic study during an outbreak of pandemic (H1N1) 2009 in a boarding school in England. Overall, 353 (17%) of students and staff completed a questionnaire and provided a serum sample. The attack rate was 40.5% and 34.1% for self-reported acute respiratory infection (ARI). Staff were less likely to be seropositive than students 13–15 years of age (staff 20–49 years, adjusted odds ratio [AOR] 0.30; >50 years AOR 0.20). Teachers were more likely to be seropositive than other staff (AOR 7.47, 95% confidence interval [CI] 2.31–24.2). Of seropositive persons, 44.6% (95% CI 36.2%–53.3%) did not report ARI. Conversely, of 141 with ARI and 63 with influenza-like illness, 45.8% (95% CI 37.0%–54.0%) and 30.2% (95% CI 19.2%–43.0%) had negative test results, respectively. A weak association was found between seropositivity and a prophylactic dose of antiviral agents (AOR 0.55, 95% CI 0.30–0.99); prophylactic antiviral agents lowered the odds of ARI by 50%. PMID:21888793

  3. Leaching Studies for Copper and Solder Alloy Recovery from Shredded Particles of Waste Printed Circuit Boards

    Science.gov (United States)

    Kavousi, Maryam; Sattari, Anahita; Alamdari, Eskandar Keshavarz; Fatmehsari, Davoud Haghshenas

    2018-03-01

    Printed circuit boards (PCBs) comprise various metals such as Cu, Sn, and Pb, as well as platinum group metals. The recovery of metals from PCBs is important not only due to the waste treatment but also for recycling of valuable metals. In the present work, the leaching process of Cu, Sn, and Pb from PCBs was studied using fluoroboric acid and hydrogen peroxide as the leaching agent and oxidant, respectively. Pertinent factors including concentration of acid, temperature, liquid-solid ratio, and concentration of oxidizing agent were evaluated. The results showed 99 pct of copper and 90 pct solder alloy were dissolved at a temperature of 298 K (25 °C) for 180 minutes using 0.6 M HBF4 for the particle size range of 0.15 to 0.4 mm. Moreover, solid/liquid ratio had insignificant effect on the recovery of metals. Kinetics analysis revealed that the chemical control regime governs the process with activation energy 41.25 and 38.9 kJ/mol for copper and lead leaching reactions, respectively.

  4. Inhomogeneous deformation of aluminum alloy AA-2219 Rivet heads during manufacturing-A case study

    International Nuclear Information System (INIS)

    Ahmad, S.; Subhani, T.; Haq, A.U.

    2006-01-01

    AA -2219 aluminum alloy wire of diameter 4mm was used for the manufacturing of rivets used in aerospace industry. The problem arose as the heads of many of the rivets were inhomogenously deformed during manufacturing and were declared reject by the customer. Investigation was carried out to uncover the cause of the problem and to find its solution. Chemical analysis and mechanical testing were performed to ascertain the chemical composition and mechanical properties of the rivet wire. Metallographic examination was also carried out to study the macro and micro structural details. Metallographic and mechanical results were also compared with that of qualified rivets. It was revealed that the rivet wire was not annealed after wire drawing process- and was in hardened state, which gave rise to a non-uniform plastic flow during manufacturing. The presence of second phase coherent precipitates increased the hardness and tensile strength of rivet wire and was found to be the possible cause of inhomogenously deformed rivet heads; which was rectified by partial annealing the rivet wire at suitable temperature. (author)

  5. Energy paybacks of six-sigma: A case study of manufacturing industry in India

    Directory of Open Access Journals (Sweden)

    Prabhakar Kaushik

    2016-11-01

    Full Text Available Industries, nowadays, are concerned about energy consumption and ever narrowing rules of emissions by the governments. Therefore, a race to clean; green and less energy consuming manufacturing is going on throughout the world. But in authors’ perspective, the major part of energy exploitation lies in the production of a rejected product. Therefore alongside the use of energy saving processes and machinery, industry should primarily look for rejection reduction. This, apart from energy saving and profitability, will add to the moral responsibility of every person toward nature. Here in this paper, authors describe a case study in which the increased rejection rate of a part of cycle chain assembly is controlled by the application of Six Sigma. Six Sigma, from many years has proved to be an ultimate solution when it comes to the application part in manufacturing industries. It’s very generic and easily applicable methodology has drawn tremendous positive results throughout the world. A financial gain of INR 0.267 million was yielded by implying six-sigma approach. In a move toward energy saving, the money saved by the project was used for green manufacturing to promote energy conservation.

  6. Competitive Perception of Small Indian Manufacturers: A study of Punjab Units

    Directory of Open Access Journals (Sweden)

    Raj Kumar Gautam

    2011-09-01

    Full Text Available The paper aims at identifying the main competitors and competitive advantages of small scale manufacturers. The manufacturers were selected from four manufacturing industries producing textiles, bicycle and bicycle parts, food products and beverages and leather and leather products in the state of Punjab, India. The data were collected from 200 units out of which 173 units were considered for data analysis purposes. In this study, a number of statements indicating the relevant quality certification, competition and cluster association were developed and the respondents were asked to respond to the statement on a five-point likert scale. The Kruskal-Wallis test was applied to know the significant differences among the respondents with regards to different industries, age, and turnover groups with respect to the impact of cluster association. The test was applied at an assumed p-value =0.05. The statements with less than 0.05 p-value are considered significant and those with p-value more than the assumed p-value are considered to be insignificant. The weighted rankings were also calculated for the purpose of data analysis in respect to competitive advantages by assigning the weights 4, 3, 2 and 1 to ranks 1, 2, 3 and 4 respectively.

  7. Manufacturing study of Be, W and CFC bonded structures for plasma-facing components

    International Nuclear Information System (INIS)

    Onozuka, M.; Hirai, S.; Kikuchi, K.; Oda, Y.; Shimizu, K.

    2004-01-01

    A manufacturing study has been conducted for Be, W, and CFC bonded structures employed in plasma-facing components for the ITER. For Be tiles bonded to the Cu-Cr-Zr alloy heat sink with stainless-steel cooling pipes, a one-axis hot press with two heating processes has been used to bond the three materials. An Al-Si base interlayer has been used to bond Be to the Cu-alloy. The heating processes have been selected to match the required heat treatment conditions for the Cu-alloy. Because of the limited heat processes using a conventional hot press, the manufacturing cost can be minimized. For both the W and CFC tiles, the materials have been brazed at the same time to the Cu-alloy. Ni-Cu-Mn and Cu-Ti brazing materials have been used for the W and CFC tiles, respectively. Using the above bonding techniques, partial mockups of a blanket first-wall panel and divertor target have been successfully manufactured

  8. Manufacturing study of Be, W and CFC bonded structures for plasma-facing components

    Science.gov (United States)

    Onozuka, M.; Hirai, S.; Kikuchi, K.; Oda, Y.; Shimizu, K.

    2004-08-01

    A manufacturing study has been conducted for Be, W, and CFC bonded structures employed in plasma-facing components for the ITER. For Be tiles bonded to the Cu-Cr-Zr alloy heat sink with stainless-steel cooling pipes, a one-axis hot press with two heating processes has been used to bond the three materials. An Al-Si base interlayer has been used to bond Be to the Cu-alloy. The heating processes have been selected to match the required heat treatment conditions for the Cu-alloy. Because of the limited heat processes using a conventional hot press, the manufacturing cost can be minimized. For both the W and CFC tiles, the materials have been brazed at the same time to the Cu-alloy. Ni-Cu-Mn and Cu-Ti brazing materials have been used for the W and CFC tiles, respectively. Using the above bonding techniques, partial mockups of a blanket first-wall panel and divertor target have been successfully manufactured.

  9. Analysis of Agility Performance of Supply Chain: A Case Study on Indian Automotive Manufacturer

    Science.gov (United States)

    Routroy, S.; Sharma, S.; Bhardwaj, A.

    2018-04-01

    Manufacturing companies should understand the changing customer needs and expectations, access and defend the competitive pressure, anticipate and manage the uncertain demand and supply chain risk, and implement the appropriate technology to survive and excel in today’s marketplace. Therefore, they are moving away from mass production (i.e. lean supply chain) to one based on fast-responsiveness and flexibility, capitalizing on the rapid advancement in internet technologies and factory-on-demand mode of production (i.e. agile supply chain). It is observed that manufacturing companies in India in general and automotive supply chain in specific are compelled to cultivate supply chain agility for enhancing its performance level on continuous basis and comparing its supply chain agility performance with competitors to survive and sustain in the competitive business environment. Therefore, a methodology is proposed to evaluate the supply chain agility of a manufacturing supply chain and compare its performance level with competitors using Fuzzy Analytic Hierarchy Process and Taguchi Loss Function. A case study is developed and the proposed methodology is applied to Indian automotive supply chain for explaining the salient features of it.

  10. When Sound Bites Become the News: a Case Study on Manufacturing News in Croatia

    Directory of Open Access Journals (Sweden)

    Tena Perišin

    2017-06-01

    Full Text Available Media environment is rapidly changing and facing a widespread crisis in journalism. It is followed by the decline of audience trust and increasing market pressures. The main goal is to win the audience’s attention, very often by creating drama and producing ‘conflict’. The news is not based on something that really happened and that is relevant, but it is more often manufactured or artificially produced. In this case study we explore the curious life cycle of a sound bite from a passing remark by the then Croatian Prime Minister Zoran Milanović’s to the headlines, discussions and extensive reports which developed over the course of several days. This example shows how news could be manufactured and content blurred when it is built around a fragment without providing the context, in this case a political quote. For several days, politicians, experts, war veterans, but also ordinary citizens were involved in the manufactured news story without making a reference to the context. Consequently, the democratic debate was avoided. Drawing on a discussion of news fragmentation as isolation from context, we show that in this case, news values (what news is are increasingly blurred, preventing the news from becoming the source of information and discussion of the country’s key issues.

  11. RECYCLING OF PRINTED CIRCUIT BOARDS AIMING SILVER RECOVERY: A HYDROMETALLURGICAL ROUTE STUDY

    Directory of Open Access Journals (Sweden)

    Marcos Paulo Kohler Caldas

    2015-06-01

    Full Text Available The aim of this paper is characterize printed circuit board of computers and propose a hydrometallurgical route for silver recovery present in its composition. Initially, the printed circuit board was comminuted in both knife and hammer mills. The comminuted material was characterized by sieve analysis, chemical analysis by inductively coupled plasma optical emission spectrometry (ICP-OES and loss on ignition. Leaching tests were conducted in sulfuric acid, sulfuric acid in an oxidizing medium and nitric acid. The results indicated that the printed circuit board is mainly composed of copper (19.42%. Silver content of 0.045% was found. The route for silver recovery was leaching in sulfuric acid at 75°C for 18 hours. Then, leaching in sulfuric acid at 75°C in an oxidizing medium for 6 hours and nitric acid leaching at room temperature for 2 hours. Through of this route, 96.6% of silver was recovered.

  12. Manufacturing Initiative

    Data.gov (United States)

    National Aeronautics and Space Administration — The Advanced Manufacturing Technologies (AMT) Project supports multiple activities within the Administration's National Manufacturing Initiative. A key component of...

  13. Ocean Science for Decision-Making: Current Activities of the National Research Council's Ocean Studies Board

    Science.gov (United States)

    Roberts, S.; Glickson, D.; Mengelt, C.; Forrest, S.; Waddell, K.

    2012-12-01

    The National Research Council is a private, nonprofit organization chartered by Congress in 1916 as an expansion of the U.S. National Academy of Sciences. Its mission is to improve the use of science in government decision making and public policy, increase public understanding, and promote the acquisition and dissemination of knowledge in matters involving science, engineering, technology, and health. Within the National Research Council, the Ocean Studies Board (OSB) mission is to explore the science, policies, and infrastructure needed to understand, manage, and conserve coastal and marine environments and resources. OSB undertakes studies and workshops on emerging scientific and policy issues at the request of federal agencies, Congress, and others; provides program reviews and guidance; and facilitates communication on oceanographic issues among different sectors. OSB also serves as the U.S. National Committee to the international, nongovernmental Scientific Committee on Oceanic Research (SCOR). OSB has produced reports on a wide range of topics of interest to researchers and educators, the federal government, the non-profit sector, and industry. Recent reports have focused on ecosystem services in the Gulf of Mexico after the Deepwater Horizon oil spill, sea level rise on the U.S. west coast, scientific ocean drilling needs and accomplishments, requirements for sustained ocean color measurements, critical infrastructure for ocean research, tsunami warning and preparedness, ocean acidification, and marine and hydrokinetic power resource assessments. Studies that are currently underway include responding to oil spills in the Arctic, evaluating the effectiveness of fishery stock rebuilding plans, and reviewing the National Ocean Acidification Research Plan. OSB plays an important role in helping create policy decisions and disseminating important information regarding various aspects of ocean science.

  14. A Survey Study of Institutional Review Board Thought Processes in the United States and South Korea

    Directory of Open Access Journals (Sweden)

    Si-Kyung Jung

    2012-09-01

    Full Text Available Introduction: In the last several decades, South Korea has rapidly adopted Western customs and practices. Yet, cultural differences between South Korea and the United States exist. The purpose ofthis study was to identify and characterize potential cultural differences in the Korean and US institutional review board (IRB approach to certain topics.Methods: A qualitative analysis of a 9-item survey, describing 4 research study case scenarios, sent to IRB members from the United States and South Korea. The case scenarios involved the followingissues: (1 the need for consent for retrospective chart review when research subjects receive their care after the study is conceived; (2 child assent; (3 individual versus population benefit; and (4 exception from informed consent in emergency resuscitation research. The free-text responses were analyzed and abstracted for recurrent themes.Results: Twenty-three of the 45 survey recipients completed the survey, for an overall response rate of 51%. The themes that emerged were as follows: (1 the importance of parental authority among Korean participants versus the importance of child autonomy and child assent among US participants; (2 the recognition of the rights of a proxy or surrogate who can represent an individual’s values by all participants; and (3 the importance of the community, expressed by the Korean respondents, versus individualism, expressed by US respondents.Conclusion: Whereas US participants appear to emphasize the importance of the individual and the autonomy of a child, the Korean respondents stressed the importance of parental authority andbenefiting the community, above and beyond that of the individual person. However, there was substantial overlap in the themes expressed by respondents from both countries.

  15. Impact of Attitudinal Adaptation on Academic Achievement among Students: A Comparative Study of Boys and Girls in Boarding Secondary Schools in Meru County, Kenya

    Science.gov (United States)

    Murithi, Grace Gatune; Nyaga, Veronica Karimi; Barchok, Hillary K.

    2015-01-01

    This study sought to examine the impact of attitudinal adaptation on academic achievement among boys and girls in boarding secondary schools in Meru County in Kenya. The descriptive survey research design was adapted for the study whose sample size was 384 students, school counsellors and deputy principals in the boarding secondary schools. The…

  16. Board diligence, director business and corporate governance

    Directory of Open Access Journals (Sweden)

    Saibal Ghosh

    2007-11-01

    Full Text Available The paper examines the association between financial performance and boards of non-financial firms. Using data on over 200 listed manufacturing firms in India for 2005, the findings indicate that, after controlling for various firm-specific factors, board diligence as well as director busyness exerts a positive influence on corporate performance.

  17. Efficacy of the multidisciplinary tumor board conference in gynecologic oncology: A prospective study.

    Science.gov (United States)

    Lee, Banghyun; Kim, Kidong; Choi, Jin Young; Suh, Dong Hoon; No, Jae Hong; Lee, Ho-Young; Eom, Keun-Yong; Kim, Haeryoung; Hwang, Sung Il; Lee, Hak Jong; Kim, Yong Beom

    2017-12-01

    Evidence has shown that multidisciplinary tumor board conferences (MTBCs) improve patient management for various cancer types. However, few retrospective studies have investigated MTBC efficacy for patients with gynecologic cancers. Here, we prospectively aimed to evaluate how MTBCs influence patient management in gynecologic oncology. This prospective study included 85 consecutive cases that were presented at gynecologic oncology MTBCs in our tertiary university hospital between January 2015 and April 2016. The primary endpoint was treatment plan change rate, which included both major and minor changes. Major changes were defined as exchange, addition, or subtraction of treatment modality. Minor changes included all other, such as intramodality changes or treatment time changes. The secondary endpoints were the change rates of diagnosis, diagnostic work-up, and radiological and pathological findings.The treatment plan change rate, irrespective of changes in diagnostic work-up, was 27.1%, which included 10.6% major and 16.5% minor changes. Among the treatment plan changes, changes in the treatment plan change rate alone were noted in 16.5% of cases, and changes in diagnosis and radiological findings occurred in 7.1% and 3.5% of cases, respectively. Diagnosis and radiological findings, irrespective of changes in diagnostic work-up, were also changed in 9.4% and 10.6% of cases, respectively. However, there were no changes in pathological findings. Moreover, there was a change of diagnostic method for further work-up in 23.5% of cases. The implementation rate of MTBC-determined treatment changes was 91.8%. Gynecologic oncology MTBCs resulted in considerable changes in treatment plans. Diagnosis, diagnostic work-up, and radiological findings were influenced by MTBCs. The data emphasize the importance of adopting a multidisciplinary team approach for gynecologic cancer management.

  18. Rural School Superintendents: A National Study of Perspectives of Board Presidents.

    Science.gov (United States)

    Kennedy, Robert L.; Barker, Bruce O.

    1987-01-01

    Results of two surveys of 59 and 47 school board presidents from 26 and 21 different states, respectively, having district enrollments of 300 or smaller, indicated the most valued capabilities considered in hiring rural superintendents were interpersonal relations/communications skills, financial/organizational management skills, and good moral…

  19. Motivation, Engagement, and Social Climate: An International Study of Boarding Schools

    Science.gov (United States)

    Martin, Andrew J.; Papworth, Brad; Ginns, Paul; Malmberg, Lars-Erik

    2016-01-01

    Most educational climate research is conducted among (day school) students who spend the bulk of their young lives outside of school, potentially limiting the amount of climate variance that can be captured. Boarding school students, on the other hand, spend much of their lives at school and thus offer a potentially unique perspective on…

  20. Reduction of adhesive stain defect in flexible printed circuit board on hot pressing process: a case study of electronic component factory

    Directory of Open Access Journals (Sweden)

    Sakulkaew Srisang

    2014-09-01

    Full Text Available The objective of this research is a reduction of an adhesive stain defect in flexible printed circuit board in hot pressing process, the electronic factory. The manufacturing have been processing by sheet type of products with ninety-six pieces of flexible printed circuit boards. Causes of the problem include the before and internal hot pressing process. In process beginning times, the most right row of products between the cooling plate and the hot pressing machine has temperature 71.2◦C that is higher than glass transition temperature (Tg 60◦C. Those products’ temperature lead to evaporate a polyimide adhesive before hot pressing process beginning. The internal hot pressing process include the preheat times and the pressure time. In the preheat time the problem is a gap between lower and upper plate, was under specification(Under 1 mm and leaded to adhesive polyimide stain. In the actuality this time requires temperature and low pressure that mean a gap within 1 – 2 mm (between lower and upper plate. In pressure times the hot pressing plate surface is not flat and products are pressed by insufficient force that it lead to generate an adhesive stain on flexible printed circuit boards. That force is measured by the pre-scale paper and a result, RGB color, is provided. And then color density (From standard color sample and RGB color (From pre-scale paper is found out the relation by Photoshop program and multiple regression theory using. The formula is applied to compare with defect so as to find out the suitable color density (Defects reducing. The solving solutions is provided including the gap reduced adjustment between cooling plate and hot pressing machine before hot pressing process, the plate adjustment within specification in the preheat time and the pressing plate polishing in the pressure time. Results of study and solving are provide defect reduction from 24.4 percentage to 7.2 percentage of total study product.

  1. Lean manufacturing in the developing world methodology, case studies and trends from Latin America

    CERN Document Server

    Maldonado-Macías, Aidé; Cortes-Robles, Guillermo

    2014-01-01

    This book presents some definitions and concepts applied in Latin America on lean manufacturing (LM), the LM tools most widely used and human and cultural aspects that most matter in this field. The book contains a total of 14 tools used and reported by authors from different countries in Latin America, with definition, timeline with related research, benefits that have been reported in literature, and case studies implemented in Latin American companies. Finally, the book presents a list of softwares available to facilitate the tools' implementation, monitoring and improvement.

  2. Support for the Core Research Activities and Studies of the Computer Science and Telecommunications Board (CSTB)

    Energy Technology Data Exchange (ETDEWEB)

    Jon Eisenberg, Director, CSTB

    2008-05-13

    The Computer Science and Telecommunications Board of the National Research Council considers technical and policy issues pertaining to computer science (CS), telecommunications, and information technology (IT). The functions of the board include: (1) monitoring and promoting the health of the CS, IT, and telecommunications fields, including attention as appropriate to issues of human resources and funding levels and program structures for research; (2) initiating studies involving CS, IT, and telecommunications as critical resources and sources of national economic strength; (3) responding to requests from the government, non-profit organizations, and private industry for expert advice on CS, IT, and telecommunications issues; and to requests from the government for expert advice on computer and telecommunications systems planning, utilization, and modernization; (4) fostering interaction among CS, IT, and telecommunications researchers and practitioners, and with other disciplines; and providing a base of expertise in the National Research Council in the areas of CS, IT, and telecommunications. This award has supported the overall operation of CSTB. Reports resulting from the Board's efforts have been widely disseminated in both electronic and print form, and all CSTB reports are available at its World Wide Web home page at cstb.org. The following reports, resulting from projects that were separately funded by a wide array of sponsors, were completed and released during the award period: 2007: * Summary of a Workshop on Software-Intensive Systems and Uncertainty at Scale * Social Security Administration Electronic Service Provision: A Strategic Assessment * Toward a Safer and More Secure Cyberspace * Software for Dependable Systems: Sufficient Evidence? * Engaging Privacy and Information Technology in a Digital Age * Improving Disaster Management: The Role of IT in Mitigation, Preparedness, Response, and Recovery 2006: * Renewing U.S. Telecommunications

  3. A study of manufacturing tubes with nano/ultrafine grain structure by stagger spinning

    International Nuclear Information System (INIS)

    Xia, Qinxiang; Xiao, Gangfeng; Long, Hui; Cheng, Xiuquan; Yang, Baojian

    2014-01-01

    Highlights: • Proposing a method of manufacturing tubes with nano/ultrafine crystal. • Obtaining the refined ferritic grains with an size of 500 nm after stagger spinning. • Obtaining the equiaxial ferritic grains with an size of 600 nm after annealing. - Abstract: A new method of manufacturing tubes with nano/ultrafine grain structure by stagger spinning and recrystallization annealing is proposed in this study. Two methods of the stagger spinning process are developed, the corresponding macroforming quality, microstructural evolution and mechanical properties of the spun tubes made of ASTM 1020 steel are analysed. The results reveal that a good surface smoothness and an improved spin-formability of spun parts can be obtained by the process combining of 3-pass spinning followed by a 580 °C × 0.5 h static recrystallization and 2-pass spinning with a 580 °C × 1 h static recrystallization annealing under the severe thinning ratio of wall thickness reduction. The ferritic grains with an average initial size of 50 μm are refined to 500 nm after stagger spinning under the 87% thinning ratio of wall thickness reduction. The equiaxial ferritic grains with an average size of 600 nm are generated through re-nucleation and grain growth by subsequent recrystallization annealing at 580 °C for 1 h heat preservation. The tensile strength of spun tubes has been founded to be proportional to the reciprocal of layer spacing of pearlite (LSP), and the elongation is inversely proportional to the reciprocal of LSP. This study shows that the developed method of stagger power spinning has the potential to be used to manufacture bulk metal components with nano/ultrafine grain structure

  4. The Comparative Study of Art of Manufacturing Orosi and Stained Glass Windows in Iran and Europe

    Directory of Open Access Journals (Sweden)

    Zahra Sadat Abooei Mehrizi

    2017-12-01

    Full Text Available For a long time, glass manufacturing art has been globally common. There are certain similarities between Stained Glass and Orosi works. Based on historical texts, peak of Orosi art in Iran occurred during the reign of Safavid dynasty while its fall was after Qajar era. After introduction to churches after 12th century, Stained Glass manufacturing art was officially recognized. In contemporary era, Orosi art has almost faded away since it did not adapt to architecture. Similarly, Stained Glass art did not develop after it was introduced to Iran. The objectives of comparison between these arts are clarification of effects of the two arts on each other as well as better understanding of Orosi glass and Stained Glass arts. From methodological viewpoint, this study is descriptive-analytical in nature. In order to obtain better results, similar and available works of Orosi and Stained Glass arts were studied. The results of comparing these two arts suggested similar manufacturing methods and designs. In addition, a common application of the two arts is communication of greatness of the building to visitors’ minds. Stained Glass was mostly used for representation of Christ’s story while Orosi art was commonly used for depicting geometrical patterns. As a result, Orosi art was not initially influenced by Stained Glass art. In some cases, one could claim that Stained Glass art was influenced by Orosi art. Numerous factors played a role in creating differences between these two arts among which one could point to climatic conditions and patrons of such arts.

  5. Surveillance study of vector species on board passenger ships, Risk factors related to infestations

    Directory of Open Access Journals (Sweden)

    Hatzoglou Chrissi

    2008-03-01

    Full Text Available Abstract Background Passenger ships provide conditions suitable for the survival and growth of pest populations. Arthropods and rodents can gain access directly from the ships' open spaces, can be carried in shiploads, or can be found on humans or animals as ectoparasites. Vectors on board ships may contaminate stored foods, transmit illness on board, or, introduce diseases in new areas. Pest species, ship areas facilitating infestations, and different risk factors related to infestations were identified in 21 ferries. Methods 486 traps for insects and rodents were placed in 21 ferries. Archives of Public Health Authorities were reviewed to identify complaints regarding the presence of pest species on board ferries from 1994 to 2004. A detail questionnaire was used to collect data on ship characteristics and pest control practices. Results Eighteen ferries were infested with flies (85.7%, 11 with cockroaches (52.3%, three with bedbugs, and one with fleas. Other species had been found on board were ants, spiders, butterflies, beetles, and a lizard. A total of 431 Blattella germanica species were captured in 28 (9.96% traps, and 84.2% of them were nymphs. One ship was highly infested. Cockroach infestation was negatively associated with ferries in which Hazard Analysis Critical Control Point system was applied to ensure food safety on board (Relative Risk, RR = 0.23, p = 0.03, and positively associated with ferries in which cockroaches were observed by crew (RR = 4.09, p = 0.007, no cockroach monitoring log was kept (RR = 5.00, p = 0.02, and pesticide sprays for domestic use were applied by crew (RR = 4.00, p = 0.05. Cockroach infested ships had higher age (p = 0.03. Neither rats nor mice were found on any ship, but three ferries had been infested with a rodent in the past. Conclusion Integrated pest control programs should include continuing monitoring for a variety of pest species in different ship locations; pest control measures should be more

  6. Application of magnetic resonance imaging and spectroscopy in studying the biological effects of manufactured nanoparticles

    International Nuclear Information System (INIS)

    Lei Hao; Wei Li; Liu Maili

    2006-01-01

    With the rapid development of nanoscience and nanotechnology in recent years, growing research interest and efforts have been directed to study the biological effects of manufactured nanoparticles and substances alike. Despite the fact that significant progress has been made, this is still largely an uncharted field. Any advances in this field would certainly require thorough multi-disciplinary collaboration, in which the expertise and tools in nanoscience/nanotechnoloogy, physics, chemistry and biomedicine have to be combined. Due to their wide range of applications in physics, chemistry and biomedicine, magnetic resonance (MR) imaging and spectroscopy are among the most important and powerful research tools currently in use, mainly because these techniques can be used in situ and noninvasively to acquire dynamic and real-time information in various samples ranging from protein solution to the human brain. In this paper, the application of MR imaging and spectroscopy in studying the biological effects of manufactured nanoparticles is discussed. It is expected that these techniques will play important roles in 1) detecting the presence of nanoparticles in biological tissues and in vivo, 2) studying the interactions between the nanoparticles and biomolecules and 3) investigating the metabonomic aspect of the biological effects of nanoparticles. (authors)

  7. Draft Benzene Case Study Review - Second Prospective Report Study Science Advisory Board Review, March 2008

    Science.gov (United States)

    EPA developed a methodology for estimating the health benefits of benzene reductions and has applied it in a metropolitan-scale case study of the benefits of CAA controls on benzene emissions to accompany the main 812 analysis.

  8. Benzene Case Study Final Report - Second Prospective Report Study Science Advisory Board Review, July 2009

    Science.gov (United States)

    EPA developed a methodology for estimating the health benefits of benzene reductions and has applied it in a metropolitan-scale case study of the benefits of CAA controls on benzene emissions to accompany the main 812 analysis.

  9. Ceramic molar crown reproducibility by digital workflow manufacturing: An in vitro study.

    Science.gov (United States)

    Jeong, Ii-Do; Kim, Woong-Chul; Park, Jinyoung; Kim, Chong-Myeong; Kim, Ji-Hwan

    2017-08-01

    This in vitro study aimed to analyze and compare the reproducibility of zirconia and lithium disilicate crowns manufactured by digital workflow. A typodont model with a prepped upper first molar was set in a phantom head, and a digital impression was obtained with a video intraoral scanner (CEREC Omnicam; Sirona GmbH), from which a single crown was designed and manufactured with CAD/CAM into a zirconia crown and lithium disilicate crown (n=12). Reproducibility of each crown was quantitatively retrieved by superimposing the digitized data of the crown in 3D inspection software, and differences were graphically mapped in color. Areas with large differences were analyzed with digital microscopy. Mean quadratic deviations (RMS) quantitatively obtained from each ceramic group were statistically analyzed with Student's t-test (α=.05). The RMS value of lithium disilicate crown was 29.2 (4.1) µm and 17.6 (5.5) µm on the outer and inner surfaces, respectively, whereas these values were 18.6 (2.0) µm and 20.6 (5.1) µm for the zirconia crown. Reproducibility of zirconia and lithium disilicate crowns had a statistically significant difference only on the outer surface ( P <.001). The outer surface of lithium disilicate crown showed over-contouring on the buccal surface and under-contouring on the inner occlusal surface. The outer surface of zirconia crown showed both over- and under-contouring on the buccal surface, and the inner surface showed under-contouring in the marginal areas. Restoration manufacturing by digital workflow will enhance the reproducibility of zirconia single crowns more than that of lithium disilicate single crowns.

  10. A Qualitative Study into the Supplier Selection Decision-Making Process in the Malaysian SME Manufacturing Industry

    OpenAIRE

    Rahaman, F.J.

    2017-01-01

    In manufacturing, supplier selection is viewed as the foundation of supply chain management, as the choice of the supplier will inherently affect all other aspects of business. This study explores the supplier selection decision-making process within Malaysian manufacturing firms. Previous studies in supplier selection have focused on company performance and quality management. Preceding research in this field, offers evidence that the application of information technology tools, business int...

  11. A study on the effectiveness of task manager board game as a training tool in managing project

    Science.gov (United States)

    Yusof, Shahrul Azmi Mohd; Radzi, Shanizan Herman Md; Din, Sharifah Nadera Syed; Khalid, Nurhafizah

    2016-08-01

    Nowadays, games have become one of the useful tools in training. Many instructors choose to use games to enhance the way of delivering the subject. Failure to apply the suitable tool in training will lead to discouragement in learning and causing waste to the resources. An effective game will help the student understand the concept quickly. It can also help students to get involve in experiential learning where the student can manage and solve the problem as in the actual situation. This study will focus on the effectiveness of board game as a training tool for managing projects. This game has 4 tasks to be completed by students. They will be divided into a group of 4 or 5. Two methods are used in this study, pilot test, and post-test. These methods are chosen to analyze the effectiveness of using Task Manager Board Game as a teaching tool and the improvement of student's knowledge in project management. Three sub-components assessed were motivation, user experience and learning using case studies on Kirkpatrick's level one base on the perception of the students. The result indicated that the use of Task Manager board game as a training tool for managing project has a positive impact on students. It helps students to experience the situation of managing projects. It is one of the easiest ways for improving time management, human resources and communication skill.

  12. A Case Study Investigation into Creating a Joint Physical Evaluation Board

    Science.gov (United States)

    2011-04-01

    technologies with the purpose of broadening the use of telecommuting for all PDBR members. Medical professionals are a critical asset to this work...Services to relinquish power and control , even with the promise of equal 24 contribution. This is especially true when it comes to making... control of the fit/unfit decision from the individual Service. There were a number of reasons voiced for this concern. Primarily, board members

  13. An exploratory study of the board composition of European incumbent telecommunication operators

    OpenAIRE

    Whalley, Jason; Garrett, Janette; Vialle, Pierre

    2015-01-01

    While Internet executives such as Jeff Bezos or Mark Zuckerberg have achieved widespread recognition beyond the business pages, this is not the case for the chairman or chief executive officers of telecommunication servicer providers. However, they are responsible for the provision and then management of a key infrastructure that we increasingly rely upon in the information intensive economy that is emerging. An extensive literature has emerged examining the composition of company boards and ...

  14. Investigation of musculoskeletal symptoms in a manufacturing company in Brazil: a cross-sectional study.

    Science.gov (United States)

    Hembecker, Paula K; C Reis, Diogo; Konrath, Andréa C; A Gontijo, Leila; D Merino, Eugenio A

    Musculoskeletal disorders are prevalent and represent the most common health problem among the working population in industrially-developing countries, with considerable costs and impact on quality of life. Despite the high incidence of disability insurance claims among Brazilian manufacturing-sector workers, only a few studies assessed musculoskeletal disorders prevalence. To provide information on the prevalence of musculoskeletal disorders among manufacturing-sector workers and to explore the relationship between musculoskeletal disorders and sociodemographic and occupational characteristics in a medium metallurgical company located in Brazil. A cross-sectional study was carried out. Data was collected through the use of a specifically-designed questionnaire and the items used to collect musculoskeletal disorders data were based on the Nordic Musculoskeletal Questionnaire. Descriptive statistics were used and multivariate logistic regression analysis (plogistic regression analysis showed that company experience (p=0.02), presence of sleep disorders (p=0.00), self-reported general health state (p=0.00) and perform work pause (p=0.00) were significant risk factors for development of musculoskeletal disorders. Sociodemographic and work-related aspects are influential risk factors for musculoskeletal disorders. These results add comprehension about musculoskeletal disorders prevalence and suggest a need for greater emphasis on prevention strategies. Copyright © 2017 Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia. Publicado por Elsevier Editora Ltda. All rights reserved.

  15. Green Manufacturing

    Energy Technology Data Exchange (ETDEWEB)

    Patten, John

    2013-12-31

    Green Manufacturing Initiative (GMI): The initiative provides a conduit between the university and industry to facilitate cooperative research programs of mutual interest to support green (sustainable) goals and efforts. In addition to the operational savings that greener practices can bring, emerging market demands and governmental regulations are making the move to sustainable manufacturing a necessity for success. The funding supports collaborative activities among universities such as the University of Michigan, Michigan State University and Purdue University and among 40 companies to enhance economic and workforce development and provide the potential of technology transfer. WMU participants in the GMI activities included 20 faculty, over 25 students and many staff from across the College of Engineering and Applied Sciences; the College of Arts and Sciences' departments of Chemistry, Physics, Biology and Geology; the College of Business; the Environmental Research Institute; and the Environmental Studies Program. Many outside organizations also contribute to the GMI's success, including Southwest Michigan First; The Right Place of Grand Rapids, MI; Michigan Department of Environmental Quality; the Michigan Department of Energy, Labor and Economic Growth; and the Michigan Manufacturers Technical Center.

  16. The Application of Lean Manufacturing for Operation Improvement: A Case Study of Black Cough Medicine Production in Indonesia

    Directory of Open Access Journals (Sweden)

    Pramadona Pramadona

    2013-09-01

    Full Text Available Nowadays, the pharmaceutical industry has a market tends to be unstable and volatile in meeting customer needs. This is due to the economic crisis that occurred in different parts of the world. The pharmaceutical industry currently uses good manufacturing practices (cGMP to ensure that products are consistently produced and controlled according to the required standards. Pharmaceutical industry slowly started to move from cGMP to lean manufacturing that focused on reducing operating costs while ensuring compliance. The purpose of this paper is to analyze the usage of lean manufacturing instead of the usage of cGMP to eliminate wastes. To conduct this study, literature review and company visit has been done. This analysis was applied by using value stream mapping (VSM and 7-wastes methodology to analyze the problems in the OBH (Black Cough Medicine production line one of the pharmaceutical industry in Bandung, Indonesia. For the improvement, the lean manufacturing approach has been carried out and the future VSM has been developed. Finding reveals that the application of lean manufacturing in the cGMP environment helps the company to eliminate wastes in reducing lead time and cycle time in the manufacturing process. Keywords: pharmaceutical industry, cGMP, lean manufacturing, value stream mapping, 7-wastes.

  17. Manufacturing engineering and technology

    CERN Document Server

    Kalpakjian, Serope; Vijai Sekar, K S

    2014-01-01

    For courses in manufacturing processes at two- or four-year schools. An up-to-date text that provides a solid background in manufacturing processes. Manufacturing Engineering and Technology, SI Edition, 7e, presents a mostly qualitative description of the science, technology, and practice of manufacturing. This includes detailed descriptions of manufacturing processes and the manufacturing enterprise that will help introduce students to important concepts. With a total of 120 examples and case studies, up-to-date and comprehensive coverage of all topics, and superior two-color graphics, this text provides a solid background for manufacturing students and serves as a valuable reference text for professionals. Teaching and Learning Experience To provide a better teaching and learning experience, for both instructors and students, this program will: * Apply Theory and/or Research: An excellent overview of manufacturing conceptswith a balance of relevant fundamentals and real-world practices. * Engage Students: E...

  18. Working conditions in the engine department - A qualitative study among engine room personnel on board Swedish merchant ships.

    Science.gov (United States)

    Lundh, Monica; Lützhöft, Margareta; Rydstedt, Leif; Dahlman, Joakim

    2011-01-01

    The specific problems associated with the work on board within the merchant fleet are well known and have over the years been a topic of discussion. The work conditions in the engine room (ER) are demanding due to, e.g. the thermal climate, noise and awkward working postures. The work in the engine control room (ECR) has over recent years undergone major changes, mainly due to the introduction of computers on board. In order to capture the impact these changes had implied, and also to investigate how the work situation has developed, a total of 20 engine officers and engine ratings were interviewed. The interviews were semi-structured and Grounded Theory was used for the data analysis. The aim of the present study was to describe how the engine crew perceive their work situation and working environment on board. Further, the aim was to identify areas for improvements which the engine crew consider especially important for a safe and effective work environment. The result of the study shows that the design of the ECR and ER is crucial for how different tasks are performed. Design which does not support operational procedures and how tasks are performed risk inducing inappropriate behaviour as the crew members' are compelled to find alternative ways to perform their tasks in order to get the job done. These types of behaviour can induce an increased risk of exposure to hazardous substances and the engine crew members becoming injured. Copyright © 2010 Elsevier Ltd and The Ergonomics Society. All rights reserved.

  19. Effect of Performance Deficiencies on Graduation and Board Certification Rates: A 10-yr Multicenter Study of Anesthesiology Residents.

    Science.gov (United States)

    Turner, Judi A; Fitzsimons, Michael G; Pardo, Manuel C; Hawkins, Joy L; Huang, Yue Ming; Rudolph, Maria D D; Keyes, Mary A; Howard-Quijano, Kimberly J; Naim, Natale Z; Buckley, Jack C; Grogan, Tristan R; Steadman, Randolph H

    2016-07-01

    This multicenter, retrospective study was conducted to determine how resident performance deficiencies affect graduation and board certification. Primary documents pertaining to resident performance were examined over a 10-yr period at four academic anesthesiology residencies. Residents entering training between 2000 and 2009 were included, with follow-up through February 2016. Residents receiving actions by the programs' Clinical Competency Committee were categorized by the area of deficiency and compared to peers without deficiencies. A total of 865 residents were studied (range: 127 to 275 per program). Of these, 215 residents received a total of 405 actions from their respective Clinical Competency Committee. Among those who received an action compared to those who did not, the proportion graduating differed (93 vs. 99%, respectively, P graduating dropped to 55%. When more than three Accreditation Council for Graduate Medical Education Core Competencies were deficient, the proportion graduating also dropped significantly. Overall graduation and board certification rates were consistently high in residents with no, or isolated, deficiencies. Residents deficient in an Essential Attribute, or multiple competencies, are at high risk of not graduating or achieving board certification. More research is needed on the effectiveness and selective deployment of remediation efforts, particularly for high-risk groups.

  20. Effect of Performance Deficiencies on Graduation and Board Certification Rates: A 10-Year Multicenter Study of Anesthesiology Residents

    Science.gov (United States)

    Turner, Judi A.; Fitzsimons, Michael G.; Pardo, Manuel C.; Hawkins, Joy L.; Huang, Yue Ming; Rudolph, Maria D. D.; Keyes, Mary A.; Howard-Quijano, Kimberly J.; Naim, Natale Z.; Buckley, Jack C.; Grogan, Tristan R.; Steadman, Randolph H.

    2016-01-01

    Background This multi-center, retrospective study was conducted to determine how resident performance deficiencies affect graduation and board certification. Methods Primary documents pertaining to resident performance were examined over a 10-year period at four academic anesthesiology residencies. Residents entering training between 2000 and 2009 were included, with follow-up through February 2016. Residents receiving actions by the programs’ Clinical Competency Committee were categorized by the area of deficiency and compared to peers without deficiencies. Results A total of 865 residents were studied (range: 127–275 per program). Of these, 215 residents received a total of 405 actions from their respective Clinical Competency Committee. Among those who received an action compared to those who did not, the proportion graduating differed (93% versus 99%, respectively, Pgraduating dropped to 55%. When more than three Accreditation Council for Graduate Medical Education core competencies were deficient, the proportion graduating also dropped significantly. Conclusions Overall graduation and board certification rates were consistently high in residents with no, or isolated, deficiencies. Residents deficient in an Essential Attribute, or multiple competencies, are at high risk of not graduating or achieving board certification. More research is needed on the effectiveness and selective deployment of remediation efforts, particularly for high-risk groups. PMID:27119434

  1. PLYWOOD MANUFACTURE FROM FIVE SPECIES OF TROPICAL PINE

    Directory of Open Access Journals (Sweden)

    Setsuo Iwakiri

    2010-08-01

    Full Text Available This research was developed aiming at evaluating the feasibility of the use of 5 species of tropical pine to plywood manufacture. The following species were studied: Pinus caribaea, Pinus chiapensis, Pinus maximinoi, Pinus oocarpa, Pinus tecunumannii and Pinus taeda, being the last used as the referential species. Plywood were manufactured with 5 plies, bonded with urea-formaldheyde and fenol-formaldheyde resin. The results of thickness sweeling and recovering were the same for all species studied, with exception to thickness sweeling for the boards glued with fenol-formaldheyde resin. The boards made from Pinus maximinoi and Pinus oocarpa, showed the higher values in modulus of elasticity. The boards  of Pinus maximinoi, Pinus oocarpa and Pinus taeda, glued with fenol-formaldheyde resin, resulted in higher values of the modulus of rupture, in comparison to other species. For the glue line strength, the boards of Pinus maximinoi, Pinus taeda and Pinus chiapensis, showed the better results. Based on the general results of this research it, could be said that the Pinus maximinoi and Pinus oocarpa present the high potentiality to plywood manufacture.

  2. Study of secular equilibrium reinstatement on UO{sub 2} pellets manufactured by AUC route

    Energy Technology Data Exchange (ETDEWEB)

    Carnaval, João Paulo R.; Beltran, Dalton J.M.C.; Oliveira, Carlos A., E-mail: joaocarnaval@inb.gov.br, E-mail: daltonbeltran@inb.gov.br, E-mail: carlossilva@inb.gov.br [Indústrias Nucleares do Brasil S.A. (INB), Resende, RJ (Brazil)

    2017-07-01

    The fuel assemblies manufactured by INB for Angra-1 power plant has axial blanket fuel rods which must be inspected due the columns formed by different enrichment pellets. The equipment used for inspection is built with a group of BGO scintillators detectors which measurement principle is based on the absorption of gamma rays emitted from Uranium decay. The commercial grade UF{sub 6} used by INB is stored into cylinders type 30B. The uranium inside these cylinders is in secular equilibrium before the processing. It has been found that the AUC route causes the loss of that equilibrium because the UF{sub 6} is volatilized from the cylinder and the uranium daughters remain in the container. As AUC is converted to powder and pellets, the secular equilibrium is restored through time. The purpose of this work is to present a study of the secular equilibrium reinstatement on UO{sub 2} pellets manufactured by AUC route before being inspected on Rod Scanner. (author)

  3. Development of an Adaptive Forecasting System: A Case Study of a PC Manufacturer in South Korea

    Directory of Open Access Journals (Sweden)

    Chihyun Jung

    2016-03-01

    Full Text Available We present a case study of the development of an adaptive forecasting system for a leading personal computer (PC manufacturer in South Korea. It is widely accepted that demand forecasting for products with short product life cycles (PLCs is difficult, and the PLC of a PC is generally very short. The firm has various types of products, and the volatile demand patterns differ by product. Moreover, we found that different departments have different requirements when it comes to the accuracy, point-of-time and range of the forecasts. We divide the demand forecasting process into three stages depending on the requirements and purposes. The systematic forecasting process is then introduced to improve the accuracy of demand forecasting and to meet the department-specific requirements. Moreover, a newly devised short-term forecasting method is presented, which utilizes the long-term forecasting results of the preceding stages. We evaluate our systematic forecasting methods based on actual sales data from the PC manufacturer, where our forecasting methods have been implemented.

  4. Leveraging Lean in construction: A case study of a BIM-based HVAC manufacturing process

    Directory of Open Access Journals (Sweden)

    Colin J. Conway

    2014-12-01

    Full Text Available The impetus towards efficiency in the AECO (Architecture, Engineering, Construction & Operations sector is driving the implementation of Lean practices. BIM technologies and BIM processes provide methods by which this can be achieved. Major clients of building services contractors have begun to mandate the use of BIM and some are using BIM preparedness/experience as pre-tender qualification criteria. In this case study, an initial review has been conducted of the achievements of a major Irish M&E contractor in implementing BIM. The firm purpose-built a facility for the off-site manufacture of building services components. The operations of the plant are efficient and quality assured through the use of an appropriately skilled workforce at all stages of manufacture, and tracking software that has developed as the knowledge of the contractor grew. Standardised processes have been developed which have resulted in greater efficiencies and lower costs for the contractor as a result of fewer requirements for onsite modifications (such as those caused by clashes, less waste, and greater flexibility. Despite some initial objections, the employees of the company are now more satisfied with their working conditions and are, as a result, more productive. Through investment in BIM-based, Lean processes, the contractor can now better compete when tendering for large-scale projects in Ireland and worldwide, including the rapidly-increasing number where BIM experience and preparedness is mandated.

  5. A STUDY ON THE IDENTIFICATION OF FIRE HAZARDS ON BOARD: A CASE STUDY

    Directory of Open Access Journals (Sweden)

    Reyhan Ozsoysal

    2017-01-01

    Full Text Available The RoRo ship MS UND ADRIYATIK was wrecked in February 2008 by a catastrophic fire. The causes of the accident included a combination of human, technical and organizational factors. In this study, the authors describe the accident, its chronology, and the dependencies involved. They then examine some of the erroneous series of human’s operations, design and technical errors that led to the disaster and their organizational roots at the time of the accident. Risk-reduction measures can be costly, though; priorities must be set based on costs and benefits. This research suggests ways to support fire prevention efforts. Nine possible reasons were determined to perform a survey suitable for AHP technique. The purpose of this survey is to determine the order of possible explanations for this fire accident and possible provisions and precautions to be taken.

  6. A Study on the Manufacturing Properties of Crack Self-Healing Capsules Using Cement Powder for Addition to Cement Composites

    OpenAIRE

    Choi, Yun-Wang; Oh, Sung-Rok; Choi, Byung-Keol

    2017-01-01

    We fabricated crack self-healing capsules using cement powder for mixing into cement composites and evaluated the properties of the capsule manufacturing process in this study. The manufacture of the self-healing capsules is divided into core production processing of granulating cement in powder form and a coating process for creating a wall on the surfaces of the granulated cement particles. The produced capsules contain unhardened cement and can be mixed directly with the cement composite m...

  7. Factors associated with high-severity disciplinary action by a state medical board: a Texas study of medical license revocation.

    Science.gov (United States)

    Cardarelli, Roberto; Licciardone, John C

    2006-03-01

    There has been an increase in research evaluating factors associated with disciplinary action of physicians by state medical boards. However, factors related to the severity of disciplinary action are lacking. By investigating these factors while controlling for the type of violation, the authors sought to determine whether physician characteristics influenced the process of disciplinary action by state medical boards. Physicians disciplined by the Texas Medical Board between January 1, 1989, and December 31, 1998, were included in this case-controlled study (N=1129). Multivariate logistic regression analysis was used to compute odds ratios (ORs) and 95% confidence intervals (CIs) for factors associated with license revocation, the most severe disciplinary action, compared with all other forms of disciplinary action combined. Anesthesiologists (OR, 2.45; 95% CI, 1.05-5.74), general practitioners (OR, 1.80; 95% CI, 1.01-3.19), and psychiatrists (OR, 2.68; 95% CI, 1.41-5.13), as well as those with multiple disciplinary actions (OR, 1.91; 95% CI, 1.29-2.83) were most susceptible to license revocation. The more years a disciplined physician was in practice, the greater risk he or she had of license revocation (OR, 1.05; 95% CI, 1.04-1.07). Factors associated with a greater likelihood of license revocation for physicians are: primary medical specialty, number of years in practice, and a history of multiple disciplinary actions.

  8. Home-based balance training programme using Wii Fit with balance board for Parkinsons's disease: a pilot study.

    Science.gov (United States)

    Esculier, Jean-Francois; Vaudrin, Joanie; Bériault, Patrick; Gagnon, Karine; Tremblay, Louis E

    2012-02-01

    To evaluate the effects of a home-based balance training programme using visual feedback (Nintendo Wii Fit game with balance board) on balance and functional abilities in subjects with Parkinson's disease, and to compare the effects with a group of paired healthy subjects. Ten subjects with moderate Parkinson's disease and 8 healthy elderly subjects. Subjects participated in a 6-week home-based balance training programme using Nintendo Wii Fit and balance board. Baseline measures were taken before training for the Sit-to-Stand test (STST), Timed-Up-and-Go (TUG), Tinetti Performance Oriented Mobility Assessment (POMA), 10-m walk test, Community Balance and Mobility assessment (CBM), Activities-specific Balance and Confidence scale (ABC), unipodal stance duration, and a force platform. All measurements were taken again after 3 and 6 weeks of training. The Parkinson's disease group significantly improved their results in TUG, STST, unipodal stance, 10-m walk test, CBM, POMA and force platform at the end of the 6-week training programme. The healthy subjects group significantly improved in TUG, STST, unipodal stance and CBM. This pilot study suggests that a home-based balance programme using Wii Fit with balance board could improve static and dynamic balance, mobility and functional abilities of people affected by Parkinson's disease.

  9. Friend or foe? An exploratory study of Australian parents' use of asynchronous discussion boards in childhood obesity.

    Science.gov (United States)

    Appleton, Jessica; Fowler, Cathrine; Brown, Nicola

    2014-01-01

    The use of Internet and social media is increasing in every area of life. Parents are increasingly using online mediums to seek information about their children's health. Therefore, this is becoming an increasingly important topic area for health professionals to acknowledge. Developing an understanding about the dissemination of child health information through these online mediums will assist health professional to continue to engage and support parents to seek and share accurate and safe child health information. To explore parents' use of asynchronous online discussion boards for child health information seeking, advice and social support. A qualitative descriptive approach using an a priori template analysis was used to explore 34 discussions threads sampled from two Australian based online parenting discussion forums. To contain the scope of this study the threads chosen focused on childhood obesity in the Australian context. Four major themes related to parents' use of asynchronous online discussion boards were found. These were seeking advice, sharing advice, social support and making judgement. This final theme of making judgements included parents' perceptions of health professionals' advice. Asynchronous online discussion boards are online mediums being utilised for seeking and sharing child health related information and support between parents. The notion

  10. Study on the Transformation and Upgrade of E-Commerce Application in Manufacturing Industry

    OpenAIRE

    Zhao Liang; Feng Mengzhao

    2017-01-01

    Under the Internet thinking, manufacturing management mode is changed, it is not depend on the scale, but in the user as the center, more dependent on the reaction rate of user requirements. As the big data, cloud computing, Internet of things technology such as the development of technology, manufacturing is from automatic to intelligent evolution, on the user's personalized customization is possible. Using Internet thinking positive development manufacturing enterprise electronic commerce a...

  11. Measuring the Leanness of Manufacturing system Using Fuzzy TOPSIS : A Case Study of Parizan Sanat Company

    Directory of Open Access Journals (Sweden)

    Akram, Rasoul

    2013-11-01

    Full Text Available The implementation of lean manufacturing concepts has had a significant impact on various industries. Many companies around the world have attempted to implement lean manufacturing, but the lack of an obvious understanding of lean measurement and its performance has caused its implementation to fail. This paper presents an innovative approach by using fuzzy TOPSIS to measure the production leanness of manufacturing systems, as a paradigm. This approach is applied to the Parizan Sanat company.

  12. MANAGERIAL OPTIMISM AND DEBT FINANCING: CASE STUDY ON INDONESIA MANUFACTURING LISTED FIRMS

    Directory of Open Access Journals (Sweden)

    Gesti Memarista

    2016-10-01

    Full Text Available Managerial’s psychology can affect financial decision in the company. This paper analyzes the influence of managerial optimism on the debt financing by using regression analysis. The dependent variable in this paper is debt financing. The independent variable is managerial optimism and the control variable are firm value, firm size, and firm performance that are occurred in the previous period. The sample used in this study is manufacturing companies that listed in Indonesian stock exchange during 2010-2014. The result on this study shows that managerial optimism, firm value, and firm size that are occurred in the previous period have positive significantly impact on debt financing, whereas firm performance in the previous period has negative significantly impact on debt financing.

  13. Coevolution of Interorganizational Psychological Contract and Interorganizational Relationship: A Case Study of Manufacturing Company in China

    Directory of Open Access Journals (Sweden)

    Wei He

    2017-01-01

    Full Text Available As the belief of the beholder in an exchange about the obligations that another party should have, interorganizational psychological contract (IPC from a micro perspective provides a new angle to study interorganizational relationship (IOR. This paper studies the interrelation and coevolution of IORs and IPCs by building a system dynamics (SD model. Firstly based on the structural analysis of the interrelations of IPC and IOR, this paper builds the qualitative causal loop diagram of the interrelations. Based on investigation of 55 manufacturing enterprises in China we further draw the stock and flow diagram. Then we apply the data of Jiangxi Motors Co., Ltd., to simulate the model. The results reveal the development and evolution of IORs and IPCs and their interrelations. Furthermore, the sensitivity analysis is conducted and the influences of trust on IORs and IPCs are discussed. Finally managerial implications and some recommendations are provided for the decision-making of developing IORs.

  14. Cost Study for Manufacturing of Solid Oxide Fuel Cell Power Systems

    Energy Technology Data Exchange (ETDEWEB)

    Weimar, Mark R. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Chick, Lawrence A. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Gotthold, David W. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Whyatt, Greg A. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2013-09-30

    Solid oxide fuel cell (SOFC) power systems can be designed to produce electricity from fossil fuels at extremely high net efficiencies, approaching 70%. However, in order to penetrate commercial markets to an extent that significantly impacts world fuel consumption, their cost will need to be competitive with alternative generating systems, such as gas turbines. This report discusses a cost model developed at PNNL to estimate the manufacturing cost of SOFC power systems sized for ground-based distributed generation. The power system design was developed at PNNL in a study on the feasibility of using SOFC power systems on more electric aircraft to replace the main engine-mounted electrical generators [Whyatt and Chick, 2012]. We chose to study that design because the projected efficiency was high (70%) and the generating capacity was suitable for ground-based distributed generation (270 kW).

  15. EFFECTIVENESS OF A NEW BALANCE TRAINING PROGRAM ON ROCKER BOARD IN SITTING IN STROKE SUBJECTS A PILOT STUDY

    Directory of Open Access Journals (Sweden)

    Sandesh Rayamajhi

    2014-06-01

    Full Text Available Background: Stroke has been considered to be the most common cause of neurological disability with very high prevalence rate. The recovery of independence following stroke is a complex process requiring the reacquisition of many skills. Since controlling the body’s position in space is essential part of functional skills, restoration of balance is a critical part of the recovery of ability after stroke. Most of the work done regarding balance training in stroke subjects has focused on task-oriented activities and training under varied sensory input and found them to be effective. Studies have also compared the effect of stable and unstable surfaces on balance in stroke subjects and found that balance training on unstable surfaces is more effective in improving static and dynamic balance. There has not been any study till date investigating the effectiveness of balance training program on rocker board which is specific for stroke subjects who have difficulty in standing. Since balance training on rocker board in sitting has proved to be effective in improving balance in subjects with spinal cord injury who have difficulty in standing, there is a need to find out if similar balance training program on rocker board in sitting is also effective for improving balance of stroke subjects. Method: A Pilot study was performed on 10 stroke subjects selected through purposive sampling. Subjects were divided into two groups by randomization as control (CG and experimental group (EG. EG received balance training on a rocker board along with conventional physiotherapy program. The CG received only conventional physiotherapy program. Results: Post-intervention Berg balance scale score of EG and the CG was statistically significant (p < 0.05 in both the groups as compared to pre-treatment depicted through Wilcoxon signed rank analysis within the groups. Greater improvement was observed in the EG compared to the CG post-treatment, analysed through Mann

  16. Study on the Transformation and Upgrade of E-Commerce Application in Manufacturing Industry

    Directory of Open Access Journals (Sweden)

    Zhao Liang

    2017-01-01

    Full Text Available Under the Internet thinking, manufacturing management mode is changed, it is not depend on the scale, but in the user as the center, more dependent on the reaction rate of user requirements. As the big data, cloud computing, Internet of things technology such as the development of technology, manufacturing is from automatic to intelligent evolution, on the user's personalized customization is possible. Using Internet thinking positive development manufacturing enterprise electronic commerce application mode of transformation and upgrading of manufacturing industry plays an important role. Promoting the continued ascent of manufacturing industry informatization level, promote the transformation of the manufacturing production mode, provide greater profit space for the export of products. In industrial 4.0 mode, the user is the core of the enterprise, C2B model will be the mainstream of future manufacturing e-commerce application mode. This paper to present the sorted out the basic model of manufacturing enterprise electronic commerce application, point out the existing problems, and the computing technology, communication technology, the constant development of storage technology, such as background, puts forward the corresponding countermeasure, points out that the C2B model is the development direction of manufacturing enterprise electronic commerce application mode.

  17. Space station automation study: Automation requriements derived from space manufacturing concepts,volume 2

    Science.gov (United States)

    1984-01-01

    Automation reuirements were developed for two manufacturing concepts: (1) Gallium Arsenide Electroepitaxial Crystal Production and Wafer Manufacturing Facility, and (2) Gallium Arsenide VLSI Microelectronics Chip Processing Facility. A functional overview of the ultimate design concept incoporating the two manufacturing facilities on the space station are provided. The concepts were selected to facilitate an in-depth analysis of manufacturing automation requirements in the form of process mechanization, teleoperation and robotics, sensors, and artificial intelligence. While the cost-effectiveness of these facilities was not analyzed, both appear entirely feasible for the year 2000 timeframe.

  18. Challenges in conducting post-authorisation safety studies (PASS): A vaccine manufacturer's view.

    Science.gov (United States)

    Cohet, Catherine; Rosillon, Dominique; Willame, Corinne; Haguinet, Francois; Marenne, Marie-Noëlle; Fontaine, Sandrine; Buyse, Hubert; Bauchau, Vincent; Baril, Laurence

    2017-05-25

    Post-authorisation safety studies (PASS) of vaccines assess or quantify the risk of adverse events following immunisation that were not identified or could not be estimated pre-licensure. The aim of this perspective paper is to describe the authors' experience in the design and conduct of twelve PASS that contributed to the evaluation of the benefit-risk of vaccines in real-world settings. We describe challenges and learnings from selected PASS of rotavirus, malaria, influenza, human papillomavirus and measles-mumps-rubella-varicella vaccines that assessed or identified potential or theoretical risks, which may lead to changes to risk management plans and/or to label updates. Study settings include the use of large healthcare databases and de novo data collection. PASS methodology is influenced by the background incidence of the outcome of interest, vaccine uptake, availability and quality of data sources, identification of the at-risk population and of suitable comparators, availability of validated case definitions, and the frequent need for case ascertainment in large databases. Challenges include the requirement for valid exposure and outcome data, identification of, and access to, adequate data sources, and mitigating limitations including bias and confounding. Assessing feasibility is becoming a key step to confirm that study objectives can be met in a timely manner. PASS provide critical information for regulators, public health agencies, vaccine manufacturers and ultimately, individuals. Collaborative approaches and synergistic efforts between vaccine manufacturers and key stakeholders, such as regulatory and public health agencies, are needed to facilitate access to data, and to drive optimal study design and implementation, with the aim of generating robust evidence. Copyright © 2017 GSK Biologicals SA. Published by Elsevier Ltd.. All rights reserved.

  19. Study of mandible reconstruction using a fibula flap with application of additive manufacturing technology.

    Science.gov (United States)

    Tsai, Ming-June; Wu, Ching-Tsai

    2014-05-06

    This study aimed to establish surgical guiding techniques for completing mandible lesion resection and reconstruction of the mandible defect area with fibula sections in one surgery by applying additive manufacturing technology, which can reduce the surgical duration and enhance the surgical accuracy and success rate. A computer assisted mandible reconstruction planning (CAMRP) program was used to calculate the optimal cutting length and number of fibula pieces and design the fixtures for mandible cutting, registration, and arrangement of the fibula segments. The mandible cutting and registering fixtures were then generated using an additive manufacturing system. The CAMRP calculated the optimal fibula cutting length and number of segments based on the location and length of the defective portion of the mandible. The mandible cutting jig was generated according to the boundary surface of the lesion resection on the mandible STL model. The fibular cutting fixture was based on the length of each segment, and the registered fixture was used to quickly arrange the fibula pieces into the shape of the defect area. In this study, the mandibular lesion was reconstructed using registered fibular sections in one step, and the method is very easy to perform. The application of additive manufacturing technology provided customized models and the cutting fixtures and registered fixtures, which can improve the efficiency of clinical application. This study showed that the cutting fixture helped to rapidly complete lesion resection and fibula cutting, and the registered fixture enabled arrangement of the fibula pieces and allowed completion of the mandible reconstruction in a timely manner. Our method can overcome the disadvantages of traditional surgery, which requires a long and different course of treatment and is liable to cause error. With the help of optimal cutting planning by the CAMRP and the 3D printed mandible resection jig and fibula cutting fixture, this all

  20. Buddy Board

    DEFF Research Database (Denmark)

    Enggaard, Helle; Moselund, Lene

    2015-01-01

    Projekt ’BuddyBoard’ er kommet i stand via et samarbejde mellem Frederikshavn kommune, Bunker43 og Lab. X. Afdeling en ’Havly’ på Sæby Ældrecenter fungerer som living lab, hvilket betyder, at det udgør et levende laboratorium for udvikling og afprøvning af teknologi (Schultz, 2013). Projektet er....... Bunker43 har udviklet en teknologi (BuddyBoard) til hurtig formidling af billeder fra pårørende og personale til beboere på institutioner. Pårørende og personale uploader billeder via en APP eller en hjemmeside og har mulighed for at tilføje en kort forklarende tekst til hvert billede. Beboeren ser...... billederne via en tablet. Systemet bygger på et simpelt og brugervenligt design, så ældre med kognitive og/eller fysiske funktionsnedsættelser kan anvende teknologien. BuddyBoard fungerer via internettet, og billederne gemmes på en sikret server hos udbyderen, som er Bunker43. Intentionerne med BuddyBoard er...

  1. Solving the Big Data (BD) Problem in Advanced Manufacturing (Subcategory for work done at Georgia Tech. Study Process and Design Factors for Additive Manufacturing Improvement)

    Energy Technology Data Exchange (ETDEWEB)

    Clark, Brett W. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Diaz, Kimberly A. [Georgia Inst. of Technology, Atlanta, GA (United States); Ochiobi, Chinaza Darlene [Georgia Inst. of Technology, Atlanta, GA (United States); Paynabar, Kamran [Georgia Inst. of Technology, Atlanta, GA (United States)

    2015-09-01

    3D printing originally known as additive manufacturing is a process of making 3 dimensional solid objects from a CAD file. This ground breaking technology is widely used for industrial and biomedical purposes such as building objects, tools, body parts and cosmetics. An important benefit of 3D printing is the cost reduction and manufacturing flexibility; complex parts are built at the fraction of the price. However, layer by layer printing of complex shapes adds error due to the surface roughness. Any such error results in poor quality products with inaccurate dimensions. The main purpose of this research is to measure the amount of printing errors for parts with different geometric shapes and to analyze them for finding optimal printing settings to minimize the error. We use a Design of Experiments framework, and focus on studying parts with cone and ellipsoid shapes. We found that the orientation and the shape of geometric shapes have significant effect on the printing error. From our analysis, we also determined the optimal orientation that gives the least printing error.

  2. Comparative study of electromagnetic compatibility methods in printed circuit board design tools

    International Nuclear Information System (INIS)

    Marinova, Galia

    2002-01-01

    The paper considers the state-of-the art in electromagnetic compatibility (EMC) oriented printed circuit board (PCB) design. A general methodology of EMC oriented PCB design is synthesized. The main CAD tools available today are estimated and compared for their abilities to treat EMC oriented design. To help non experts a knowledge-base containing more than 50 basic rules for EMC-oriented PCB design is proposed. It can be applied in the PCB design CAD tools that possess rule-builders or it can help interactive design. Trends in this area of EMC-oriented PCB design are deduced. (Author)

  3. A stability-study of expired ampoules manufactured more than 40 years ago.

    Science.gov (United States)

    Zilker, Markus; Sörgel, Fritz; Holzgrabe, Ulrike

    2018-02-20

    Pharmaceutical manufacturers have to study the stability of drug products before marketing according to ICH guideline Q1A(R2); data of those investigations aim to set expiry dates. The expiry date on the container of a remedy assures the physician and the patient a stability of the drug in its formulation i.e. within a specification of 95-105%. Only few studies show that shelf-lives of pharmaceutical products are often longer than expiration dates. The objective of the study presented here was determining the content of nine expired ampoules manufactured in the last century and identifying the impurity profile by means of HPLC-UV and HPLC-MS, respectively. The ampoules are part of the "PEAK-collection" of long expired finished pharmaceutical products at IBMP, Nürnberg-Heroldsberg, and consists among others of epinephrine (Suprarenin and Adrenalin in Oil), etilefrine (Effortil ® ), synephrine (Sympatol ® ), caffeine and procaine (Impletol), caffeine and sodium salicylate (Caffeinum Salicylicum), dipyridamole (Persantin ® ), furosemide (Lasix ® ), and metamizole (Novalgin ® ). For chromatographic investigations methods of the European Pharmacopoeia for related substances were used; for determining the content, they were validated for linearity, precision, and accuracy. The results were compared to current reference ampoules. Five out of nine ampoules were still within the specified content limits. In Suprarenin and Adrenalin in Oil, both containing epinephrine, Impletol (procaine), and Persantin ® (dipyridamole) contents were decreased to 70%, 74%, 79%, and 86%, respectively, and therefore out of specification. Copyright © 2017 Elsevier B.V. All rights reserved.

  4. Industrial assessment of radiofrequency and microwave radiations: case study at electronic manufacturing industries in Penang

    International Nuclear Information System (INIS)

    Mohd Zaid Abdullah

    1996-01-01

    In electronic manufacturing industry, the applications of an equipment emitting radiofrequency radiation (RFR) are numerous and Increasing. It is known that exposure to RFR at sufficiently high intensity and duration can produce a variety of adverse health effects. This paper presents some results from an extensive studies in the RFR field measurements at frequency range from 100 MHz to 1 GHz. All measurements were performed inside factories located at the Penang Free Trade Zone. In this case, the factories chosen are those that manufacture the electronic components whereby the applications of RFR equipment are likely to be intensive compared to other type of industries. The measurement system used in this study are the portable spectrum-analyzer, the passive log-periodic antenna and a desktop computer for data analysis. Results from this study have indicated that the RFR exposure levels in most factories are in the range of 7.7 x 10 sup -4 - 4.31 x 10 sup -3 Wm sup -2 and 0.01 - 0. 741 Vm sup -1 for power density and electric strength measurement respectively. These ranges are at least 100 times lower compared to the RFR protection guidelines proposed by the American National Standard Institute (ANSI). However, the exposure levels inside the factory are consistently 10 sup -3 - 10 sup -4 higher than the levels caused by natural sources and is about 10 sup 2 - 10 sup 6 higher than the levels measured at a distance of 30 m from a low-power output mobile phone transmitter. In the case of the health effect assessment, no sufficient evidence has been found to indicate the potential consequences resulting from excessive RFR exposure. Nonetheless, many factories surveyed are unaware of the existence of the international guidelines and codes on the safe use of radiofrequency energy even though, some measures are being taken to protect their employees against RFR

  5. FACTORS INFLUENCING THE SUCCESS OF TECHNOLOGY ADOPTION: A CASE STUDY OF INDONESIAN MANUFACTURING FIRMS

    Directory of Open Access Journals (Sweden)

    Lena Ellitan

    2002-01-01

    Full Text Available To date, the role of technology management as a factor of success in technological innovation has been a subject of significant interest among practitioners and academicians. Despite the plethora of attention given to the numerous issues of management of new technology adoption and implementation, many organizations still fail to manage their technology efficiently, effectively, and strategically. This paper is based on a field investigation via face to face interviews with top management in East Java involving medium and large manufacturing companies from the tobacco, plastic, pulp, furniture, textile, cable and plywood sectors. This research seeks to investigate the extent of technology adoption and its management in medium and large Indonesian manufacturing companies. Further, this study investigates the technology benefits perceived by respondents. The study found that: (1 Indonesian manufacturing companies still lack a strategic perspective when adopting technologies and they are more concerned with short-term issues; (2 they face problems related to people, organizational issues, limited budgets and lack of government support; (3 these problems limit the choice of technologies and together with the national economic situation, reinforces the short-term mindset of top management. In addition, the investigation of critical success factors and inhibitors of technology adoption is necessary for identification of a proper vision and strategic viewpoint of managing new technology. Abstract in Bahasa Indonesia : Sampai sekarang, peranan manajemen teknologi sebagai factor keberhasilan dalam inovasi teknologi menjadi topik yang menarik perhatian para praktisis maupun akademisi. Walaupun masalah-masalah manajemen teknologi dan implementasinya telah banyak diperhatikan, masih ada banyak perusahaan yang belum mampu mengatur teknologi secara efisien, secara efektif atau dengan strategi yang tepat. Makalah ini dibuat berdasarkan survei lapangan yang

  6. Study of skin and mucous membrane disorders among workers engaged in the sodium dichromate manufacturing industry and chrome plating industry.

    Science.gov (United States)

    Singhal, Vijay Kumar; Deswal, Balbir Singh; Singh, Bachu Narayan

    2015-01-01

    Inhalation of dusts and fumes arising during the manufacture of sodium dichromate from chrome ore, chromic acid mist emitted during electroplating, and skin contact with chromate produce hazards to workers. (1) To elucidate the prevalence of skin and mucous membrane disorders among the workers engaged in the sodium dichromate manufacturing industry and chrome plating industry. (2) To know the relationship of prevalence with the duration of exposure to chrome mist, dust, and fumes. A cross-sectional study was conducted among all the workers engaged in sodium dichromate manufacturing and chrome plating from several industries situated near the Delhi-Haryana border in the districts of Faridabad and Sonepat of Haryana, India from January 01, 2014 to December 31, 2014. All the workers available from the concerned industries for the study were interviewed and medically examined after obtaining their informed consent. A total of 130 workers comprising 66 workers from the sodium dichromate manufacturing industry and 64 workers from the chrome plating industry were examined on a pretested schedule. Descriptive statistical methods (proportions, relative risk, and Chi-square test of significance with P value analyzed using Epi Info version 7). All the workers were found to be males and of the adult age group. Out of the total examined, 69.69% and 56.22% of the workers had disorders of the nasal mucous membrane in the sodium dichromate manufacturing industry and the chrome plating industry, respectively. 42.42% and 28.22% of the workers had perforation of the nasal septum in the sodium dichromate manufacturing industry and chrome plating industry, respectively. 6.06% and 3.12% workers had skin ulcers in the sodium dichromate manufacturing industry and chrome plating industry, respectively. Nasal irritation and rhinorrhea were the most commonly found symptoms in both the processes. 48.48% and 90.52% of the workers were using hand gloves in the sodium dichromate manufacturing

  7. Space station automation study: Automation requirements derived from space manufacturing concepts. Volume 1: Executive summary

    Science.gov (United States)

    1984-01-01

    The electroepitaxial process and the Very Large Scale Integration (VLSI) circuits (chips) facilities were chosen because each requires a very high degree of automation, and therefore involved extensive use of teleoperators, robotics, process mechanization, and artificial intelligence. Both cover a raw materials process and a sophisticated multi-step process and are therfore highly representative of the kinds of difficult operation, maintenance, and repair challenges which can be expected for any type of space manufacturing facility. Generic areas were identified which will require significant further study. The initial design will be based on terrestrial state-of-the-art hard automation. One hundred candidate missions were evaluated on the basis of automation portential and availability of meaning ful knowldege. The design requirements and unconstrained design concepts developed for the two missions are presented.

  8. Advanced Material Studies for Additive Manufacturing in terms of Future Gear Application

    Directory of Open Access Journals (Sweden)

    Jan Bräunig

    2014-06-01

    Full Text Available Additive manufacturing by laser beam melting is predestined for complex component geometry like integrated cooling channels without enormous posttreatment processing. To investigate the influence of build-up direction in terms of later tooth excitation of gear-wheels, first fundamental material analyses were accomplished in this publication. Therefore, additively produced specimens were used to determine the build-up direction dependent elastic properties of the material in all three spatial directions based on tensile and torsion tests. The anisotropies of elastic limits and breaking points of previous studies were confirmed in this paper. Furthermore, torsion values were also determined depending on build-up direction. Laser beam melted X3NiCoMoTi18-9-5 (hot-work tool steel was shown to exhibit extremely high performance under shear loading in comparison to conventionally processed steel. The influence of build-up direction on torsional strength was also shown.

  9. Comparison Study on Additive Manufacturing (AM) and Powder Metallurgy (PM) AlSi10Mg Alloys

    Science.gov (United States)

    Chen, B.; Moon, S. K.; Yao, X.; Bi, G.; Shen, J.; Umeda, J.; Kondoh, K.

    2018-02-01

    The microstructural and mechanical properties of AlSi10Mg alloys fabricated by additive manufacturing (AM) and powder metallurgy (PM) routes were investigated and compared. The microstructures were examined by scanning electron microscopy assisted with electron-dispersive spectroscopy. The crystalline features were studied by x-ray diffraction and electron backscatter diffraction. Room-temperature tensile tests and Vickers hardness measurements were performed to characterize the mechanical properties. It was found that the AM alloy had coarser Al grains but much finer Si precipitates compared with the PM alloy. Consequently, the AM alloy showed more than 100% increment in strength and hardness compared with the PM alloy due to the presence of ultrafine forms of Si, while exhibiting moderate ductility.

  10. TQM in Construction and Manufacturing Companies of Pakistan: A Case Study

    Directory of Open Access Journals (Sweden)

    Nafees Ahmed Memon

    2013-04-01

    Full Text Available The role of construction quality and continuous improvement is vital in the development of construction industry of developing countries. Construction quality and continuous improvement is linked with the adoption of quality management systems in construction companies. This paper highlights the importance of TQM (Total Quality Management and presents the benefits of TQM gained by construction organizations in worldwide construction sector. It examines and contrasts the level of acceptance and execution of TQM in construction and manufacturing sector of Pakistan. The paper also identifies the barriers in adoption of TQM and advantages of implementing TQM in construction sector of Pakistan. In the end, the paper presents some suggestions and steps for the implementation of TQM in construction companies of Pakistan. The findings and recommendations of the study are not only beneficial for the construction sector of Pakistan but also these will be helpful to other developing countries having similar scenarios.

  11. Empowerment: estudo de casos em empresas manufatureiras Empowerment: a case study in manufacturing companies

    Directory of Open Access Journals (Sweden)

    Claudia Heloisa Ribeiro Rodrigues

    2004-08-01

    Full Text Available O objetivo deste artigo é analisar o desenvolvimento do empowerment em duas empresas manufatureiras. Empowerment é uma abordagem de projeto de trabalho que objetiva a delegação de poder de decisão, autonomia e participação dos funcionários na administração das empresas. Analisa-se o desenvolvimento do empowerment por meio dos estágios evolutivos das áreas de gestão, das configurações organizacionais, das estratégias competitivas, da gestão de recursos humanos e da qualidade. Apresenta-se um estudo de casos em duas empresas manufatureiras do interior de São Paulo, a fim de se analisar o grau de participação dos funcionários de acordo com o estágio evolutivo de suas áreas de gestão. Nas conclusões, discutem-se os fatores favoráveis, as particularidades e limitações do empowerment com base nos estudos de casos.An analysis is made here of the empowerment implementation process in two manufacturing companies. Empowerment is a work design approach aimed at delegating decision making, autonomy and employee participation in company management. The development of empowerment is analyzed through the evolutionary stages of management areas, organizational configurations, competitive strategies, and human resources and quality management. A case study of two manufacturing companies in the state of São Paulo was conducted to analyze the degree of employee participation according to the stages of evolution of their management areas. The conclusions section of this article discusses the favorable factors, peculiarities and limitations of empowerment revealed during these case studies.

  12. Case Study on Lean Manufacturing System Implementation in Batch Printing Industry Malaysia

    Directory of Open Access Journals (Sweden)

    Tang Saihong

    2016-01-01

    Full Text Available Lean Manufacturing is a popular tool to be implemented in printing industry fields for the purpose of achieving the successful production goals and it is a well-organized method used to eliminate the waste or non-value added activities. Lean Manufacturing consists of several tools like 5S, TPM, Kanban, Kaizen and others. In this paper, the researcher is focus on TPM (Total Productive Maintenance. TPM is a concept used for maintaining plants and equipment with the involvement of all employees in the company in order to increase the overall equipment effectiveness (OEE. In this paper, the researcher will identify the problem faced in company’s production line and then implement lean tools in order to improve the productivity. Afterward, the researcher will carry out time study on company’s production line. The purpose of time study is to getting the result for OEE and the time taken for producing one piece of product. The researcher is then designed and suggested one-piece flow system to the management with showing the result on simulation that getting improvement in productivity. The result was simulated by using Flexsim and shows that 7.59 seconds was saved in producing one piece of calendar. At the end, the result shows that OEE increase from 34.3% to 60% and the company total save around 6 hours per month by implement one-piece flow. At last, by verifying the distribution of collected data, the researcher will perform Anderson Darling Normality test to ensure the distribution of data are normal.

  13. The application of Quick Response Manufacturing practices in Brazil, Europe, and the USA : An exploratory study

    NARCIS (Netherlands)

    Godinho Filho, Moacir; Marchesini, Antonio Gilberto; Riezebos, Jan; Vandaele, Nico; Devos Ganga, Gilberto Miller

    2017-01-01

    This research investigates the application of Quick Response Manufacturing (QRM) practices by enterprises in Brazil, Europe, and the USA. QRM is a management concept that focuses on time as the key factor in competitive manufacturing, particularly in customer-oriented Engineer and Make to Order

  14. U.S. Competitiveness Study: How Furniture and Cabinet Manufacturers Compare

    Science.gov (United States)

    Urs Buehlmann; Matthew Bumgardner; Al Schuler; Rich Christianson

    2003-01-01

    A disturbing 37.2%, of the 341 manufacturing executives participating in the U.S. Wood Competitiveness Survey either strongly agreed or agreed "that by the end of the decade, little will remain of domestic wood furniture and other wood products manufacturing in the United States."

  15. The extent of knowledge of Quick Response Manufacturing principles : an exploratory transnational study

    NARCIS (Netherlands)

    Godinho Filho, Moacir; Marchesini, Antonio Gilberto; Riezebos, Jan; Vandaele, Nico; Devos Ganga, Gilberto Miller

    2017-01-01

    The main goal of this research is to identify whether companies that have implemented the Quick Response Manufacturing (QRM) approach have full knowledge of the QRM principles or have merely applied the elements ( principles and tools) that have a close relationship with Lean Manufacturing. Based on

  16. Gatekeeping African studies: A preliminary insight on what do editorial boards indicate about the nature and structure of research brokerage

    Energy Technology Data Exchange (ETDEWEB)

    Mendonça, S.; Pereira, J.; Ferreira, M.E.

    2016-07-01

    Issues of inequality and distribution of different sorts constitute salient aspects in the agenda of development studies. As globalisation unfolds new indicators are needed in order to update the capacity identify, capture, and interpret its dynamics and asymmetries. Notwithstanding the many changes in the world’s socio-economic landscape, Africa, in particular, remains a marginal geographical and cognitive space. This research deals with a particular segment of the development studies “academic value chain”. Unlike much of the contemporary work on scientometrics, this paper does not primarily analyse publications or citations. Our data regards the composition and characteristics of editorial boards in the field under analysis. (Author)

  17. Precision manufacturing

    CERN Document Server

    Dornfeld, David

    2008-01-01

    Today there is a high demand for high-precision products. The manufacturing processes are now highly sophisticated and derive from a specialized genre called precision engineering. Precision Manufacturing provides an introduction to precision engineering and manufacturing with an emphasis on the design and performance of precision machines and machine tools, metrology, tooling elements, machine structures, sources of error, precision machining processes and precision process planning. As well as discussing the critical role precision machine design for manufacturing has had in technological developments over the last few hundred years. In addition, the influence of sustainable manufacturing requirements in precision processes is introduced. Drawing upon years of practical experience and using numerous examples and illustrative applications, David Dornfeld and Dae-Eun Lee cover precision manufacturing as it applies to: The importance of measurement and metrology in the context of Precision Manufacturing. Th...

  18. Mental health status among Burmese adolescent students living in boarding houses in Thailand: a cross-sectional study.

    Science.gov (United States)

    Akiyama, Takeshi; Win, Thar; Maung, Cynthia; Ray, Paw; Sakisaka, Kayako; Tanabe, Aya; Kobayashi, Jun; Jimba, Masamine

    2013-04-12

    In Tak province of Thailand, a number of adolescent students who migrated from Burma have resided in the boarding houses of migrant schools. This study investigated mental health status and its relationship with perceived social support among such students. This cross-sectional study surveyed 428 students, aged 12-18 years, who lived in boarding houses. The Hopkins Symptom Checklist (HSCL)-37 A, Stressful Life Events (SLE) and Reactions of Adolescents to Traumatic Stress (RATS) questionnaires were used to assess participants' mental health status and experience of traumatic events. The Medical Outcome Study (MOS) Social Support Survey Scale was used to measure their perceived level of social support. Descriptive analysis was conducted to examine the distribution of sociodemographic characteristics, trauma experiences, and mental health status. Further, multivariate linear regression analysis was used to examine the association between such characteristics and participants' mental health status. In total, 771 students were invited to participate in the study and 428 students chose to take part. Of these students, 304 completed the questionnaire. A large proportion (62.8%) indicated that both of their parents lived in Myanmar, while only 11.8% answered that both of their parents lived in Thailand. The mean total number of traumatic events experienced was 5.7 (standard deviation [SD] 2.9), mean total score on the HSCL-37A was 63.1 (SD 11.4), and mean total score on the RATS was 41.4 (SD 9.9). Multivariate linear regression analysis revealed that higher number of traumatic events was associated with more mental health problems. Many students residing in boarding houses suffered from poor mental health in Thailand's Tak province. The number of traumatic experiences reported was higher than expected. Furthermore, these traumatic experiences were associated with poorer mental health status. Rather than making a generalized assumption on the mental health status of

  19. Learning and Study Strategies Inventory subtests and factors as predictors of National Board of Chiropractic Examiners Part 1 examination performance.

    Science.gov (United States)

    Schutz, Christine M; Dalton, Leanne; Tepe, Rodger E

    2013-01-01

    This study was designed to extend research on the relationship between chiropractic students' learning and study strategies and national board examination performance. Sixty-nine first trimester chiropractic students self-administered the Learning and Study Strategies Inventory (LASSI). Linear trends tests (for continuous variables) and Mantel-Haenszel trend tests (for categorical variables) were utilized to determine if the 10 LASSI subtests and 3 factors predicted low, medium and high levels of National Board of Chiropractic Examiners (NBCE) Part 1 scores. Multiple regression was performed to predict overall mean NBCE examination scores using the 3 LASSI factors as predictor variables. Four LASSI subtests (Anxiety, Concentration, Selecting Main Ideas, Test Strategies) and one factor (Goal Orientation) were significantly associated with NBCE examination levels. One factor (Goal Orientation) was a significant predictor of overall mean NBCE examination performance. Learning and study strategies are predictive of NBCE Part 1 examination performance in chiropractic students. The current study found LASSI subtests Anxiety, Concentration, Selecting Main Ideas, and Test Strategies, and the Goal-Orientation factor to be significant predictors of NBCE scores. The LASSI may be useful to educators in preparing students for academic success. Further research is warranted to explore the effects of learning and study strategies training on GPA and NBCE performance.

  20. FINANCE BOARD, MANAGEMENT BOARD AND COLLABORATION BOARD

    CERN Multimedia

    M. Della Negra

    Common Meeting FB/MB/CB (FMC20) Electronics Issues The key dates for the Low Voltage Power distribution were presented. It is critical that the uninterruptible power supply be installed. There is a programme of installation underground leading up to the start of commissioning underground in March 2007, when all detectors should be read out underground. The overall status of the Electronics production was presented. The Low Voltage power supplies remain a concern and close cooperation with the manufacturers will be essential to have deliveries as needed. The failure of some components are mostly understood now. There are new proposals for the SLHC machine parameters, where it is essential that CMS give feed-back. A CMS Expression of Interest is almost complete and will be circulated to the Collaboration the following week. It will be submitted to the LHCC in December 2006. The Letter of Intent, a larger document, will be submitted in summer 2007. Technical Issues The main issue is the schedule, which h...

  1. LEMBAGA PENDIDIKAN ISLAM AKHIR ABAD XX Studi Pendidikan Muhammadiyah Sekolah Umum Plus dan Boarding School

    Directory of Open Access Journals (Sweden)

    Heni Listiana

    2015-12-01

    Full Text Available Abstract: Modernization of Islamic education institutions in Indonesia was preceded by  Muhammadiyah movement that rised the idea of extra public schools or so called "HIS met de Qur'an". This school model became the forerunner of modern Islamic education institutions in the 20th century. This school model is, then, disseminated to other reformist movements. ‘Plus’ Public Schools  has become a new phenomenon of modern educational institutions to acomodate the needs of Muslims to modern education. In addition to the developing Extra Public Schools, Muhammadiyah also developed "boarding School" (Dormitory education system which was initially criticized to address the needs of the Muslim community towards education. Keywords: islamic education institutions, muhammadiyah, 20th century

  2. Outside directors and the Japanese board room: An in-depth study

    Directory of Open Access Journals (Sweden)

    Ralf Bebenroth

    2007-07-01

    Full Text Available The purpose of this paper is to investigate the performance impact at the board level in the corporate governance of Japanese companies. We investigated the composition of outside directors and outside auditors for three years and found evidence, that a higher outside ratio leads to a better performance. As a second step, we cluster Japanese companies into three groups, companies without outside directors, companies which appointed outside directors and companies who apply to the “US-style system.” Companies without outside directors every single year show the weakest performance and US-style Japanese companies the strongest what leads to the conclusion that Japanese companies might be better off having a high ratio of outside directors and outside auditors.

  3. The Role of Business Sustainability in Human Resource Management: A Study on Indian Manufacturing Companies

    Directory of Open Access Journals (Sweden)

    Vasantha Lakshmi R

    2017-05-01

    Full Text Available Business sustainability from the point of view of human resource management (HRM is a management and leadership philosophy about how people are most enable to contribute to success at their work by minimizing the negative impactof their work on the environmental and social factors and at the same timeimproving the financial factors in the organizations. This study is an empiricalstudy conducted on 233 Indian manufacturing firms operating in the Karnatakaregion to investigate the role for HRM in business sustainability. The role for HRMin business sustainability is studied with the construct HRM strategic integrationin business sustainability strategy. Further, this study focuses on the way HRMincorporates sustainability in its practices in the organization and its impact onthe organizational performance. The data are analyzed using SEM, and the resultsrevealed the significance of the relationship of the HRM strategic integration ofsustainability strategy with the organizational performance. The organizationalperformance studied with respect to the three factors of business sustainability viz.,profit, people, and planet. Further, these relationships are tested with contingencyfactors, age of the firm, and the number of employees for its significance in thisrelation. The empirical evidence of the study shows a significant positive relationof organizational performance when HRM has strategic integration in businesssustainability strategy. Model I4C is derived to show the role for HRM in business sustainability. 

  4. Stimuli of Collaboration in Product Development: A Case Study in a Project Manufacturing Company

    Directory of Open Access Journals (Sweden)

    Jääskeläinen Aki

    2017-12-01

    Full Text Available There is already a wide acceptance on the importance of involving supplier and customer companies in product development. Decent understanding prevails on the relationship-oriented approach to product development including various collaboration forms. However, there is less research on the factors explaining the decision of attending to joint product development. In addition, less studies have examined the integrated role of both suppliers and customers in product development initiatives. This study searches answers to the following research questions: 1. What is the role of different actors in product development initiatives? 2. What factors motivate suppliers and customers to participate in product development? The research is carried out as an in-depth qualitative single case study in a large project manufacturing company. It takes the perspective of a focal company striving for product improvements. The first part of the empirical study consists of 15 semi-structured interviews. The second part includes two discursive workshops and builds upon the results of the interviews. This study contributes to the existing research by explaining the challenges and conditions facilitating joint product development with supplier and purchaser companies. The results highlight the role of customers in improving the effectiveness of product development. As a practical contribution, the paper reports the application of workshop method as a facilitator of collaboration between supplier, purchaser (focal company and customer companies.

  5. Bandwidth Study on Energy Use and Potential Energy Saving Opportunities in U.S. Pulp and Paper Manufacturing

    Energy Technology Data Exchange (ETDEWEB)

    Sabine Brueske, Caroline Kramer, Aaron Fisher

    2015-06-01

    Energy bandwidth studies of U.S. manufacturing sectors can serve as foundational references in framing the range (or bandwidth) of potential energy savings opportunities. This bandwidth study examines energy consumption and potential energy savings opportunities in U.S. pulp and paper manufacturing. The study relies on multiple sources to estimate the energy used in six individual process areas, representing 52% of sector-wide energy consumption. Energy savings opportunities for individual processes are based on technologies currently in use or under development; the potential savings are then extrapolated to estimate sector-wide energy savings opportunity

  6. Bandwidth Study on Energy Use and Potential Energy Saving Opportunities in U.S. Iron and Steel Manufacturing

    Energy Technology Data Exchange (ETDEWEB)

    Keith Jamison, Caroline Kramer, Sabine Brueske, Aaron Fisher

    2015-06-01

    Energy bandwidth studies of U.S. manufacturing sectors can serve as foundational references in framing the range (or bandwidth) of potential energy savings opportunities. This bandwidth study examines energy consumption and potential energy savings opportunities in U.S. iron and steel manufacturing. The study relies on multiple sources to estimate the energy used in six individual process areas and select subareas, representing 82% of sector-wide energy consumption. Energy savings opportunities for individual processes and subareas are based on technologies currently in use or under development; the potential savings are then extrapolated to estimate sector-wide energy savings opportunity.

  7. An Empirical Study on the Manufacturing Firm’s Strategic Choice for Sustainability in SMEs

    Directory of Open Access Journals (Sweden)

    Chang Juck Suh

    2018-02-01

    Full Text Available To survive in the current competitive, unpredictable business environment, it is significant for firms to search and enforce capabilities that lead them to adapt and cope with dynamic changes of environment for their sustainability. We try to connect operation issues with sustainability in this paper. From the perspective of the dynamic capabilities of the firm, this study suggests a conceptual model that presents relationships among supply chain visibility, modular design, supply chain flexibility, and agility. We do not focus on the module buyer but on the small and middle-sized enterprises (SMEs. An empirical study is performed to verify the relationships proposed, using datasets collected from 232 manufacturing SMEs as module suppliers in South Korea. We used SPSS to analyze data and structural equation modeling to verify the hypotheses of the research model. The important contributions of this study are as follows. Firstly, we suggest relationships among supply chain visibilities and a modular design for supply chain flexibility and agility in sustainable performance. Secondly, we show that supply chain visibility directly leads firms to implement modular design in sustainable development. Thirdly, we verify the importance of supply chain visibility, not for module buyers, but for module suppliers by switching views in terms of SMEs’ sustainability. Lastly, this study shows that the suppliers’ modular design affects supply chain flexibility and agility, which is consistent with the findings presented in the literature.

  8. Motives and Power of School Board Members: Implications for School Board-Superintendent Relationships

    Science.gov (United States)

    Mountford, Meredith

    2004-01-01

    The qualitative study presented in this article explores motivations for school board membership and conceptions of power held by school board members. The findings of the study suggest a relationship exists between the way board members define power and the type of motivation board members have for service. The implications of these findings for…

  9. The Perceptions of Georgia School Board Members' Need for Training on School Board Governance

    Science.gov (United States)

    Nutt, Pamela Studdard

    2010-01-01

    This study explored the perceptions of training needs of school board members in Georgia. The study examined perceptions of school board chairs, board members with 1 to 5 years experience, members with 6 to 10 years experience, members with 11 to 15 years experience and board members with 16 plus years experience in the areas of school board…

  10. Sustainability in Small and Medium-Sized Manufacturing Enterprises: An Empirical Study

    Directory of Open Access Journals (Sweden)

    I. Garbie

    2016-06-01

    Full Text Available The main goal of this paper is to analyze and investigate sustainable practices in small and medium-sized manufacturing enterprises (SMEs. A comprehensive analysis and a mathematical framework are used to assess the sustainability indexes (SDIs of each aspect/issue and pillar/dimension, and of the whole manufacturing enterprise. Sustainability in the whole manufacturing enterprise is represented by the sustainable development index (SDI. The results show that there is a significant difference in SDIs between aspects and dimensions, with economic sustainability representing the highest percentage in the SDI. Also, the results show that industrial companies are adopting sustainable practices and applying them to most of the issues/aspects of the dimensions, and they can direct manufacturing companies in the industrial sector to develop strategies for sustainability. This paper introduces a new understanding of the practices and implementation of sustainability/sustainable development by SMEs through assessing the SDIs.

  11. Feasibility Study of Nanoscale Semiconductor Manufacture Using Thermal Dip Pen Nanolithography

    National Research Council Canada - National Science Library

    King, William P

    2006-01-01

    ...) for the purpose of nanoscale electronics manufacturing. In this project, we have demonstrated that using the thermal DPN technique that both indium metal, and semiconducting organic materials (PDDT, PVDF...

  12. Comparative study of manufacturing condyle implant using rapid prototyping and CNC machining

    Science.gov (United States)

    Bojanampati, S.; Karthikeyan, R.; Islam, MD; Venugopal, S.

    2018-04-01

    Injuries to the cranio-maxillofacial area caused by road traffic accidents (RTAs), fall from heights, birth defects, metabolic disorders and tumors affect a rising number of patients in the United Arab Emirates (UAE), and require maxillofacial surgery. Mandibular reconstruction poses a specific challenge in both functionality and aesthetics, and involves replacement of the damaged bone by a custom made implant. Due to material, design cycle time and manufacturing process time, such implants are in many instances not affordable to patients. In this paper, the feasibility of designing and manufacturing low-cost, custom made condyle implant is assessed using two different approaches, consisting of rapid prototyping and three-axis computer numerically controlled (CNC) machining. Two candidate rapid prototyping techniques are considered, namely fused deposition modeling (FDM) and three-dimensional printing followed by sand casting The feasibility of the proposed manufacturing processes is evaluated based on manufacturing time, cost, quality, and reliability.

  13. A study of internal structure in components made by additive manufacturing process using 3 D X-ray tomography

    International Nuclear Information System (INIS)

    Raguvarun, K.; Balasubramaniam, Krishnan; Rajagopal, Prabhu; Palanisamy, Suresh; Nagarajah, Romesh; Kapoor, Ajay; Hoye, Nicholas; Curiri, Dominic

    2015-01-01

    Additive manufacturing methods are gaining increasing popularity for rapidly and efficiently manufacturing parts and components in the industrial context, as well as for domestic applications. However, except when used for prototyping or rapid visualization of components, industries are concerned with the load carrying capacity and strength achievable by additive manufactured parts. In this paper, the wire-arc additive manufacturing (AM) process based on gas tungsten arc welding (GTAW) has been examined for the internal structure and constitution of components generated by the process. High-resolution 3D X-ray tomography is used to gain cut-views through wedge-shaped parts created using this GTAW additive manufacturing process with titanium alloy materials. In this work, two different control conditions for the GTAW process are considered. The studies reveal clusters of porosities, located in periodic spatial intervals along the sample cross-section. Such internal defects can have a detrimental effect on the strength of the resulting AM components, as shown in destructive testing studies. Closer examination of this phenomenon shows that defect clusters are preferentially located at GTAW traversal path intervals. These results highlight the strong need for enhanced control of process parameters in ensuring components with minimal defects and higher strength

  14. A study of internal structure in components made by additive manufacturing process using 3 D X-ray tomography

    Energy Technology Data Exchange (ETDEWEB)

    Raguvarun, K., E-mail: prajagopal@iitm.ac.in; Balasubramaniam, Krishnan, E-mail: prajagopal@iitm.ac.in; Rajagopal, Prabhu, E-mail: prajagopal@iitm.ac.in [Centre for NDE, Indian Institute of Technology Madras, Chennai 600036, Tamilnadu (India); Palanisamy, Suresh [Swinburne University of Technology, Faculty of Engineering, Science and Technology, Hawthorn, Victoria 3122 Australia and Defence Materials Technology Centre, Hawthorn, Victoria 3122 (Australia); Nagarajah, Romesh; Kapoor, Ajay [Swinburne University of Technology, Faculty of Engineering, Science and Technology, Hawthorn, Victoria 3122 (Australia); Hoye, Nicholas; Curiri, Dominic [University of Wollongong, Faculty of Engineering, New South Wales 2522, Australia and Defence Materials Technology Centre, Hawthorn, Victoria 3122 (Australia)

    2015-03-31

    Additive manufacturing methods are gaining increasing popularity for rapidly and efficiently manufacturing parts and components in the industrial context, as well as for domestic applications. However, except when used for prototyping or rapid visualization of components, industries are concerned with the load carrying capacity and strength achievable by additive manufactured parts. In this paper, the wire-arc additive manufacturing (AM) process based on gas tungsten arc welding (GTAW) has been examined for the internal structure and constitution of components generated by the process. High-resolution 3D X-ray tomography is used to gain cut-views through wedge-shaped parts created using this GTAW additive manufacturing process with titanium alloy materials. In this work, two different control conditions for the GTAW process are considered. The studies reveal clusters of porosities, located in periodic spatial intervals along the sample cross-section. Such internal defects can have a detrimental effect on the strength of the resulting AM components, as shown in destructive testing studies. Closer examination of this phenomenon shows that defect clusters are preferentially located at GTAW traversal path intervals. These results highlight the strong need for enhanced control of process parameters in ensuring components with minimal defects and higher strength.

  15. IMPLEMENTATION OF LEAN MANUFACTURING IN FISH CANNING COMPANY: A CASE STUDY OF A CANNED SARDINES PRODUCTION COMPANY IN MOROCCO

    Directory of Open Access Journals (Sweden)

    I. Idrıssi

    2015-12-01

    Full Text Available Lean is a powerful tool, which can bring significant benefit to manufacturing industries by creating value through reduction of waste. Although the lean concept has become very popular in mass production industries such as the automotive industry, more recently the concept has been adopted in different batch processing industries and service sectors. The application of lean tools into the food processing industry has not received the same level of attention compared to the traditional manufacturing industries. The paper discusses how the lean concept could be applied to a fish manufacturing company. The paper first presents the lean concept tools. The empirical section discusses how a case company, operating as a contract manufacturer in the food industry, has applied the lean production concept and tools. In the case study, three analysis tools are examined and the structures of demand chains of different customers are presented. The delivery times will decrease and more flexibility will be needed from the contract manufacturer. The case study shows that much movement is possible toward the lean supply chain and partnership-based cooperation. By implementing the lean concept, food companies can increase customer value through cost reduction or through provision of additional value-enhanced services.

  16. The relationship between mentoring on healthy behaviors and well-being among Israeli youth in boarding schools: a mixed-methods study.

    Science.gov (United States)

    Agmon, Maayan; Zlotnick, Cheryl; Finkelstein, Anat

    2015-02-15

    Although 10% of Israeli youth live in boarding schools, few studies, except for those focusing on mental health, have examined the well-being of this population subgroup. Thus, the aims of this study were to explore: (1) the prevalence rates of five aspects of well-being (i.e., healthy habits, avoidance of risky behaviors, peer relationships, adult relationships, and school environment) in youth residing at Israeli boarding schools; (2) the relationships between youth well-being and youth perception of their mentor; and (3) the different subgroups of youth with higher rates of risky and healthy behaviors. This study used a mixed-methods approach including a quantitative survey of youth (n = 158) to examine the association between youth behaviors and perception of their mentor; and a qualitative study consisting of interviews (n = 15) with boarding school staff to better understand the context of these findings. Greater proportions of boarding school youth, who had positive perceptions of their mentor (the significant adult or parent surrogate), believed both that their teachers thought they were good students (p boarding school had very similar healthy habits compared to other youth living in Israel; however, youth in the general population, compared to those in the boarding schools, were eating more sweets (OR = 1.39, 95% CI = 1.02-1.90) and engaging in higher levels of television use (OR = 2.64, 95% CI = 1.97-3.54). Mentors, the significant adult for youth living in residential education environments, have a major influence on school performance, the major focus of their work; mentors had no impact on healthy behaviors. Overall, there were many similarities in healthy behaviors between youth at boarding schools and youth in the general population; however, the differences in healthy habits seemed related to policies governing the boarding schools as well as its structural elements.

  17. The Determinants of FDI in the Manufacturing Industry in China - Case Studies of Taiwanese SMEs

    OpenAIRE

    Chao, Pin-Ching

    2011-01-01

    Due to the trend of economic globalisation and Taiwan’s deteriorating business environment, Taiwanese manufacturers have lost their competitive advantages in cost production to international rivals; this impact is especially strong for small and medium sized enterprises (SMEs). Along with the theories and empirical evidence developed by previous scholars, this research examines the significant determinants of FDI practices and the timely entry of Taiwanese manufacturing SMEs. In addition, the...

  18. Study on domestic material purchasing in MSR manufacture of conventional island

    International Nuclear Information System (INIS)

    Xie Zhengmao

    2010-01-01

    Combining the real case of Dongfang Electric (Guangzhou) Heavy Machinery Co., Ltd. trying to purchase the domestic sealing gasket as needed in the MSR of the conventional island, this paper describes the trends and relevant experience about nuclear power equipment manufacturers purchasing materials in the domestic market, and provides a reference to broadening the procurement channels of the purchasing departments of nuclear equipment manufacturers. (author)

  19. Industrial waste management within manufacturing: a comparative study of tools, policies, visions and concepts

    OpenAIRE

    Shahbazi, Sasha; Kurdve, Martin; Bjelkemyr, Marcus; Jönsson, Christina; Wiktorsson, Magnus

    2013-01-01

    Industrial waste is a key factor when assessing the sustainability of a manufacturing process or company. A multitude of visions, concepts, tools, and policies are used both academically and industrially to improve the environmental effect of manufacturing; a majority of these approaches have a direct bearing on industrial waste. The identified approaches have in this paper been categorised according to application area, goals, organisational entity, life cycle phase, and waste hierarchy stag...

  20. Feasibility Study on 3-D Printing of Metallic Structural Materials with Robotized Laser-Based Metal Additive Manufacturing

    Science.gov (United States)

    Ding, Yaoyu; Kovacevic, Radovan

    2016-07-01

    Metallic structural materials continue to open new avenues in achieving exotic mechanical properties that are naturally unavailable. They hold great potential in developing novel products in diverse industries such as the automotive, aerospace, biomedical, oil and gas, and defense. Currently, the use of metallic structural materials in industry is still limited because of difficulties in their manufacturing. This article studied the feasibility of printing metallic structural materials with robotized laser-based metal additive manufacturing (RLMAM). In this study, two metallic structural materials characterized by an enlarged positive Poisson's ratio and a negative Poisson's ratio were designed and simulated, respectively. An RLMAM system developed at the Research Center for Advanced Manufacturing of Southern Methodist University was used to print them. The results of the tensile tests indicated that the printed samples successfully achieved the corresponding mechanical properties.

  1. Board members’ contribution to strategy: The mediating role of board internal processes

    Directory of Open Access Journals (Sweden)

    Carmen Barroso-Castro

    2017-05-01

    Full Text Available This study aims to explore what directors do on the board, to what extent the processes occurring in the board allow the sharing and integrating of the existing knowledge, thus facilitating the board members’ contributions to strategy. We adopt the view that the internal board processes increase the impact of the cognitive resources on board performance. Using survey data from 200 large Spanish companies we demonstrate that directors’ level of knowledge of the firm and board job-related diversity positively influence the degree of the board's strategic involvement. Additionally, the internal processes that take place within the board – particularly Cognitive Conflict, the Critical and Independent Approach and the Comprehensive Discussion Process – influence the board's strategic involvement and play a partial mediating role on the aforementioned relationships. However, our results show no evidence for a positive relationship between Board Meeting Dynamics and the board's strategic involvement.

  2. Manufacturing economics of plant-made biologics: case studies in therapeutic and industrial enzymes.

    Science.gov (United States)

    Tusé, Daniel; Tu, Tiffany; McDonald, Karen A

    2014-01-01

    Production of recombinant biologics in plants has received considerable attention as an alternative platform to traditional microbial and animal cell culture. Industrially relevant features of plant systems include proper eukaryotic protein processing, inherent safety due to lack of adventitious agents, more facile scalability, faster production (transient systems), and potentially lower costs. Lower manufacturing cost has been widely claimed as an intuitive feature of the platform by the plant-made biologics community, even though cost information resides within a few private companies and studies accurately documenting such an advantage have been lacking. We present two technoeconomic case studies representing plant-made enzymes for diverse applications: human butyrylcholinesterase produced indoors for use as a medical countermeasure and cellulases produced in the field for the conversion of cellulosic biomass into ethanol as a fuel extender. Production economics were modeled based on results reported with the latest-generation expression technologies on Nicotiana host plants. We evaluated process unit operations and calculated bulk active and per-dose or per-unit costs using SuperPro Designer modeling software. Our analyses indicate that substantial cost advantages over alternative platforms can be achieved with plant systems, but these advantages are molecule/product-specific and depend on the relative cost-efficiencies of alternative sources of the same product.

  3. The study of production performance of water heater manufacturing by using simulation method

    Science.gov (United States)

    Iqbal, M.; Bamatraf, OAA; Tadjuddin, M.

    2018-02-01

    In industrial companies, as demand increases, decision-making to increase production becomes difficult due to the complexity of the model systems. Companies are trying to find the optimum methods to tackle such problems so that resources are utilized and production is increased. One line system of a manufacturing company in Malaysia was considered in this research. The Company produces several types of water heater and each type went into many processes, which was divided into twenty six sections. Each section has several operations. The main type of the product was 10G water heater which is produced most compare to other types, hence it was taken under consideration to be studied in this research. It was difficult to find the critical section that could improve the productions of the company. This research paper employed Delmia Quest software, Distribution Analyser software and Design of Experiment (DOE software) to simulate one model system taken from the company to be studied and to find the critical section that will improve the production system. As a result, assembly of inner and outer tank section were found to be the bottleneck section. Adding one section to the bottleneck increases the production rate by four products a day. The buffer size is determined by the experiment was six items.

  4. Manufacturing Economics of Plant-Made Biologics: Case Studies in Therapeutic and Industrial Enzymes

    Directory of Open Access Journals (Sweden)

    Daniel Tusé

    2014-01-01

    Full Text Available Production of recombinant biologics in plants has received considerable attention as an alternative platform to traditional microbial and animal cell culture. Industrially relevant features of plant systems include proper eukaryotic protein processing, inherent safety due to lack of adventitious agents, more facile scalability, faster production (transient systems, and potentially lower costs. Lower manufacturing cost has been widely claimed as an intuitive feature of the platform by the plant-made biologics community, even though cost information resides within a few private companies and studies accurately documenting such an advantage have been lacking. We present two technoeconomic case studies representing plant-made enzymes for diverse applications: human butyrylcholinesterase produced indoors for use as a medical countermeasure and cellulases produced in the field for the conversion of cellulosic biomass into ethanol as a fuel extender. Production economics were modeled based on results reported with the latest-generation expression technologies on Nicotiana host plants. We evaluated process unit operations and calculated bulk active and per-dose or per-unit costs using SuperPro Designer modeling software. Our analyses indicate that substantial cost advantages over alternative platforms can be achieved with plant systems, but these advantages are molecule/product-specific and depend on the relative cost-efficiencies of alternative sources of the same product.

  5. [A study on comparison of learning effects between a board game and a lecture about infection control].

    Science.gov (United States)

    Kawamura, Hitomi; Kishimoto, Keiko; Matsuda, Toshiyuki; Fukushima, Noriko

    2014-01-01

      In order to provide an opportunity for community pharmacists to actively learn about infection control, this study created learning materials through a board game format and verified characteristics of learning by determining and comparing evaluation according to viewpoint and motivational effects between a lecture and the game. To create the board game, we collected cases of infection from 30 community pharmacists. The game was created using collected and created case studies, and we held a workshop on infection control. Participants were assigned to a lecture (n=32) or game group (n=27) and completed a questionnaire before and after the workshop. The questionnaire included the evaluation according to viewpoint based on the ministry's curriculum guidelines and the motivational effect of Keller's ARCS motivation model. In the evaluation according to viewpoint, the lecture group scores were significantly higher on "knowledge and understanding" than the game group scores. In the comparison of the motivational effects, the game group was significantly higher in three out of the four items of the ARCS motivation model, "Attention", "Relevance", and "Satisfaction". These results indicate that learning through the game aroused the curiosity of the learners, increased the learning outcome, and maintained certain levels of motivation. In addition, the evaluation according to viewpoint showed that the lecture group understood the key concepts and knowledge regarding infection control, whereas there was a possibility that the game group required additional motivational factors for learning and maintaining motivation level.

  6. (Q)SAR tools for priority setting: A case study with printed paper and board food contact material substances.

    Science.gov (United States)

    Van Bossuyt, Melissa; Van Hoeck, Els; Raitano, Giuseppa; Manganelli, Serena; Braeken, Els; Ates, Gamze; Vanhaecke, Tamara; Van Miert, Sabine; Benfenati, Emilio; Mertens, Birgit; Rogiers, Vera

    2017-04-01

    Over the last years, more stringent safety requirements for an increasing number of chemicals across many regulatory fields (e.g. industrial chemicals, pharmaceuticals, food, cosmetics, …) have triggered the need for an efficient screening strategy to prioritize the substances of highest concern. In this context, alternative methods such as in silico (i.e. computational) techniques gain more and more importance. In the current study, a new prioritization strategy for identifying potentially mutagenic substances was developed based on the combination of multiple (quantitative) structure-activity relationship ((Q)SAR) tools. Non-evaluated substances used in printed paper and board food contact materials (FCM) were selected for a case study. By applying our strategy, 106 out of the 1723 substances were assigned 'high priority' as they were predicted mutagenic by 4 different (Q)SAR models. Information provided within the models allowed to identify 53 substances for which Ames mutagenicity prediction already has in vitro Ames test results. For further prioritization, additional support could be obtained by applying local i.e. specific models, as demonstrated here for aromatic azo compounds, typically found in printed paper and board FCM. The strategy developed here can easily be applied to other groups of chemicals facing the same need for priority ranking. Copyright © 2017 Elsevier Ltd. All rights reserved.

  7. a Study of Using Hydrogen Gas for Steam Boiler in CHOLOR- Alkali Manufacturing

    Science.gov (United States)

    Peantong, Sasitorn; Tangjitsitcharoen, Somkiat

    2017-06-01

    Main products of manufacturing of Cholor - Alkali, which commonly known as industrial chemical, are chlorine gas (Cl2), Sodium Hydroxide (NaOH) and hydrogen gas (H2). Chorine gas and sodium hydroxide are two main products for commercial profit; where hydrogen gas is by product. Most industries release hydrogen gas to atmosphere as it is non-profitable and less commercial scale. This study aims to make the most use of hydrogen as a substitute energy of natural gas for steam boiler to save energy cost. The second target of this study is to reduce level of CO2 release to air as a consequence of boiler combustion. This study suggests to install boiler that bases on hydrogen as main power with a high turndown ratio of at least 1:6. However, this case study uses boiler with two mode such as natural gas (NG) mode and mixed mode as they need to be flexible for production. Never the less, the best boiler selection is to use single mode energy of hydrogen. The most concerned issue about hydrogen gas is explosion during combustion stage. Stabilization measures at emergency stop is introduced to control H2 pressure to protect the explosion. This study varies ratio of natural gas to hydrogen gas to find the optimal level of two energy sources for boiler and measure total consumption through costing model; where CO2 level is measured at the boiler stack. The result of this study shows that hydrogen gas can be a substitute energy with natural gas and can reduce cost. Natural gas cost saving is 248,846 baht per month and reduce level of NOx is 80 ppm 7% O2 and 2 % of CO2 release to air as a consequence of boiler combustion.

  8. Comparative Study of Crosstalk Reduction Techniques in RF Printed Circuit Board Using FDTD Method

    Directory of Open Access Journals (Sweden)

    Rajeswari Packianathan

    2015-01-01

    Full Text Available Miniaturization of the feature size in modern electronic circuits results from placing interconnections in close proximity with a high packing density. As a result, coupling between the adjacent lines has increased significantly, causing crosstalk to become an important concern in high-performance circuit design. In certain applications, microstriplines may be used in printed circuit boards for propagating high-speed signals, rather than striplines. Here, the electromagnetic coupling effects are analyzed for various microstrip transmission line structures, namely, microstriplines with a guard trace, double stub microstriplines, and parallel serpentine microstriplines using the finite-difference time-domain method. The numerical results are compared with simulation results, where the variants are simulated using an Ansoft high-frequency structure simulator. The analysis and simulation results are experimentally validated by fabricating a prototype and establishing a good correspondence between them. Numerical results are compared with simulation and experimental results, showing that double stub microstriplines reduce the far end crosstalk by 7 dB and increase the near end crosstalk by about 2 dB compared with the parallel microstriplines. Parallel serpentine microstriplines reduce the far end crosstalk by more than 10 dB and also reduce more than 15 mV of peak far end crosstalk voltage, compared with parallel microstriplines.

  9. Study on characteristics of printed circuit board liberation and its crushed products.

    Science.gov (United States)

    Quan, Cui; Li, Aimin; Gao, Ningbo

    2012-11-01

    Recycling printed circuit board waste (PCBW) waste is a hot issue of environmental protection and resource recycling. Mechanical and thermo-chemical methods are two traditional recycling processes for PCBW. In the present research, a two-step crushing process combined with a coarse-crushing step and a fine-pulverizing step was adopted, and then the crushed products were classified into seven different fractions with a standard sieve. The liberation situation and particle shape in different size fractions were observed. Properties of different size fractions, such as heating value, thermogravimetric, proximate, ultimate and chemical analysis were determined. The Rosin-Rammler model was applied to analyze the particle size distribution of crushed material. The results indicated that complete liberation of metals from the PCBW was achieved at a size less than 0.59 mm, but the nonmetal particle in the smaller-than-0.15 mm fraction is liable to aggregate. Copper was the most prominent metal in PCBW and mainly enriched in the 0.42-0.25 mm particle size. The Rosin-Rammler equation adequately fit particle size distribution data of crushed PCBW with a correlation coefficient of 0.9810. The results of heating value and proximate analysis revealed that the PCBW had a low heating value and high ash content. The combustion and pyrolysis process of PCBW was different and there was an obvious oxidation peak of Cu in combustion runs.

  10. Erica the Rhino: A Case Study in Using Raspberry Pi Single Board Computers for Interactive Art

    Directory of Open Access Journals (Sweden)

    Philip J. Basford

    2016-06-01

    Full Text Available Erica the Rhino is an interactive art exhibit created by the University of Southampton, UK. Erica was created as part of a city wide art trail in 2013 called “Go! Rhinos”, curated by Marwell Wildlife, to raise awareness of Rhino conservation. Erica arrived as a white fibreglass shell which was then painted and equipped with five Raspberry Pi Single Board Computers (SBC. These computers allowed the audience to interact with Erica through a range of sensors and actuators. In particular, the audience could feed and stroke her to prompt reactions, as well as send her Tweets to change her behaviour. Pi SBCs were chosen because of their ready availability and their educational pedigree. During the deployment, ‘coding clubs’ were run in the shopping centre where Erica was located, and these allowed children to experiment with and program the same components used in Erica. The experience gained through numerous deployments around the country has enabled Erica to be upgraded to increase reliability and ease of maintenance, whilst the release of the Pi 2 has allowed her responsiveness to be improved.

  11. Effect of Board Type on Some Properties of Bamboo Strandboard

    Directory of Open Access Journals (Sweden)

    Ihak Sumardi

    2015-03-01

    Full Text Available The objective of this study was to evaluate the properties of bamboo strandboard (OSB by comparing different board types and strand-lengths. Bamboo strandboards with nominal dimensions of 37 mm by 37 mm by 12 mm and target density 0.65 g/cm3 were manufactured using moso bamboo (Pyllostachys pubescent Mezel and MDI resin to produce two types of strandlength. Two types of strand length and MDI resin were used to produce three types of strandboard. The bending properties and dimensional stability of the strandboards were evaluated according to the Japanese Industrial Standard (JIS for particleboard. The results of this experiment indicate that the bending properties and internal bond strength were affected by both board type and strand-length. The distribution of resin inside the 80 mm strandboard was less homogenous than in the 50 mm strandboard, which affects the internal bond strength. Thickness swelling of the RAND board was the highest and linear stability was affected substantially by strand alignment. The RAND board and cross-oriented 3LAY board effectively restrained linear expansion in the direction perpendicular to the strand alignment. A cross-oriented core may be the most effective way to reduce dimensional change and bending property values in perpendicular directions.

  12. Manufacturing knowledge management strategy

    OpenAIRE

    Shaw , Duncan; Edwards , John

    2006-01-01

    Abstract The study sought to understand the components of knowledge management strategy from the perspective of staff in UK manufacturing organisations. To analyse this topic we took an empirical approach and collaborated with two manufacturing organisations. Our main finding centres on the key components of a knowledge management strategy, and the relationships between it and manufacturing strategy and corporate strategy. Other findings include: the nature of knowledge in manufact...

  13. New Whole-House Solutions Case Study: Northwest Energy Efficient Manufactured Housing Program High-Performance Test Homes - Pacific Northwest

    Energy Technology Data Exchange (ETDEWEB)

    None

    2015-05-01

    This project represents the third phase of a multi-year effort to develop and bring to market a High Performance Manufactured Home (HPMH). In this project, the Northwest Energy Efficient Manufactured Housing Program worked with Building America Partnership for Improved Residential Construction and Bonneville Power Administration to help four factory homebuilders build prototype zero energy ready manufactured homes, resulting in what is expected to be a 30% savings relative to the Building America Benchmark. (The actual % savings varies depending on choice of heating equipment and climate zone). Previous phases of this project created a HPMH specification and prototyped individual measures from the package to obtain engineering approvals and develop preliminary factory construction processes. This case study describes the project team's work during 2014 to build prototype homes to the HPMH specifications and to monitor the homes for energy performance and durability. Monitoring is expected to continue into 2016.

  14. Studies estimating the dermal bioavailability of polynuclear aromatic hydrocarbons from manufactured plant tar-contaminated soils

    International Nuclear Information System (INIS)

    Roy, T.A.; Krueger, A.J.; Taylor, B.B.; Mauro, D.M.; Goldstein, L.S.

    1998-01-01

    In vitro percutaneous absorption studies were performed with contaminated soils or organic extracts of contaminated soils collected at manufactured gas plant (MGP) sites. The MGP tar contaminated soils were found to contain a group of targeted polynuclear aromatic hydrocarbons (PAH) at levels ranging from 10 to 2400 mg/kg. The soil extracts contained target PAH at levels ranging from 12 000 - 34 000 mg/kg. Dermal penetration rates of target PAH from the MGP tar-contaminated soils/soil extracts were determined experimentally through human skin using 3 H-benzo(a)pyrene (BaP) as a surrogate. Results from three MGP sites showed reductions of 2-3 orders of magnitude in PAH absorption through human skin from the most contaminated soils in comparison to the soil extracts. Reduction in PAH penetration can be attributed to PAH concentration and (soil) matrix properties. PAH dermal flux values are used to determine site-specific dermally absorbed dose (DAD) and chronic daily intake (CDI) which are essential terms required to estimate risk associated with human exposure to MGP tar and MGP tar-contaminated soils. 21 refs., 4 figs., 3 tabs

  15. Justification of RFID Implementation. A Case Study of White Goods Manufacturer

    Directory of Open Access Journals (Sweden)

    Gladysz Bartlomiej

    2017-12-01

    Full Text Available Radio Frequency Identification (RFID is a rapidly emerging technology with a wide range of impact and still not fully exploited potential applications. The impact of RFID is not limited to the area of its direct application. There are many possible benefits to be gained from RFID application, but it must be preceded with careful analysis as its implementation is not always reasonable. A new method for an assessment of RFID technology was presented and explained on the case of a white goods manufacturer. There was a lack of such a method allowing for relatively quick and flexible assessment, which is important for decision makers, who do not want to become involved in very sophisticated and time-consuming analysis at the early stage of decision making. The method supports early phases of decision making related to RFID implementation. Conclusions derived from the analysis of the case study confirmed that the method applied allows for rationalizing decision making and answers whether RFID could generate strategic advantage, in which area RFID should be applied, how RFID-supported processes will be executed and what benefits would be expected. previous papers focused only on answering specific questions from the above list, without showing a holistic approach. the approach to answer questions about execution of processes and benefits was not considered earlier at all. The paper illustrates details of using a new method of an assessment of RFID technology (ART using a real industrial example.

  16. Case study of fly ash brick manufacturing units at Kota in Rajasthan

    Science.gov (United States)

    Sharma, Y.; Saxena, B. K.; Rao, K. V. S.

    2018-03-01

    Kota Super Thermal Power Station of 1240 MW is located at Kota in Rajasthan, India. The quantity of fly ash generated by it is about 1.64 to 2.03 million tonnes per year. This fly ash is being utilized for making bricks, tiles, portland pozzolana cement, construction of highways, and other purposes. 1.79 million tonnes of fly ash was utilized for different applications in one year duration from April 01st, 2015 to March 31st, 2016. Out of this total utilization, 0.6439 million tonnes (36.06 %) of fly ash was used for making bricks, blocks, and tiles. In this paper, a case study of two fly ash brick manufacturing units using fly ash produced from Kota Super Thermal Power Station is described. These units produce about 15,000 and 20,000 bricks respectively by employing 10 and 16 workers each and are making a profit of about Rs. 6,000 and Rs. 8,000 per day in one shift.

  17. STUDY REGARDING THE STITCHING STRENGTH OF MATERIALS USED FOR FOOTWEAR UPPERS MANUFACTURING

    Directory of Open Access Journals (Sweden)

    HARNAGEA Florentina

    2016-05-01

    Full Text Available The shoes manufacturing implies the use of various types of leathers, leather substitutes and fabric. The sewing plays a very important role in shoe making, having an impact both in terms of functionality and outlook. One of the most important indicators of the sewed products quality is seam strength, which is influenced by a series of technological parameters such as: the shape of the needle’s top, the needle’s diameter, the seam thickness, the number of seams, the gauge of the thread, the type of seam and the material type. This paper studies the stitching strength of the full grain leather and full grain leather shiny surface used for footwear uppers, in order to improve productivity and seam quality.The experimental researches obtained for the stitching strength allow calculating the weakening coefficient of the material in the process of sewing (a= 0.33-0.48. The “a” coefficient is dependent on the stitch density, the shape of the needle’s top and the joined materials. In terms of stitching strength, the results indicate that the full grain leather obtains higher values than the full grain leather shiny surface.

  18. A new study of the kinetics of curd production in the process of cheese manufacture.

    Science.gov (United States)

    Muñoz, Susana Vargas; Torres, Maykel González; Guerrero, Francisco Quintanilla; Talavera, Rogelio Rodríguez

    2017-11-01

    We studied the role played by temperature and rennet concentration in the coagulation process for cheese manufacture and the evaluation of their kinetics. We concluded that temperature is the main factor that determines the kinetics. The rennet concentration was unimportant probably due to the fast action of the enzyme chymosin. The Dynamic light scattering technique allowed measuring the aggregate's size and their formation kinetics. The volume fraction of solids was determined from viscosity measurements, showing profiles that are in agreement with the size profiles. The results indicate that the formation of the aggregates for rennet cheese is strongly dependent on temperature and rennet concentration. The results revealed that at 35·5 °C the volume fraction of solids has the maximum slope, indicating that at this temperature the curd is formed rapidly. The optimal temperature throughout the process was established. Second-order kinetics were obtained for the process. We observed a quadratic dependence between the rennet volume and the volume fraction of solids (curd), thereby indicating that the kinetics of the curd production should be of order two.

  19. LANGUAGE USE AT AL-AMIN CHILDREN ISLAMIC BOARDING SCHOOL IN SUKOHARJO, CENTRAL JAVA (A CASE STUDY

    Directory of Open Access Journals (Sweden)

    Qanitah Masykuroh

    2017-07-01

    Full Text Available This paper is abstracted from the findings of a case study aimed at describing the codes used by children at Al-Amin Children Islamic Boarding School in Sukoharjo, Central Java. The majority of children at this Children Islamic Boarding School are bilinguals. They use javanese as their first language and Indonesian as their second language. However; they live in a specific language condition in which they should only use Indonesian in their daily activities. The analysis shows that the codes used by children are in the form of language (Indonesian and Javanese, speech level (ngoko, madya and krama, and style (formal, informal and brief. The differentiation of function between Indonesian and Javanese is not quite clear. Frequently, children use both Indonesian and Javanese in many occassions. As a result, there amny code switching and code mixing in their speech. Code swicthing occured in their speech to function: (1 count (2 think aloud (3 show annoyance (4 give emphasis (5 give reinforcement (6 give respect, and (7 make quotation. The result also shows that code mixing indicates that children's mastery of Indonesian and Javanese is still lacking. Besides, it also indicates that they get confused with language function. Key words: code forms, code function, code switching, and code mixing

  20. Additive manufacturing.

    Science.gov (United States)

    Mumith, A; Thomas, M; Shah, Z; Coathup, M; Blunn, G

    2018-04-01

    Increasing innovation in rapid prototyping (RP) and additive manufacturing (AM), also known as 3D printing, is bringing about major changes in translational surgical research. This review describes the current position in the use of additive manufacturing in orthopaedic surgery. Cite this article: Bone Joint J 2018;100-B:455-60.

  1. Manufacturing technologies

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-09-01

    The Manufacturing Technologies Center is an integral part of Sandia National Laboratories, a multiprogram engineering and science laboratory, operated for the Department of Energy (DOE) with major facilities at Albuquerque, New Mexico, and Livermore, California. Our Center is at the core of Sandia`s Advanced Manufacturing effort which spans the entire product realization process.

  2. Board Task Performance

    DEFF Research Database (Denmark)

    Minichilli, Alessandro; Zattoni, Alessandro; Nielsen, Sabina

    2012-01-01

    identify three board processes as micro-level determinants of board effectiveness. Specifically, we focus on effort norms, cognitive conflicts and the use of knowledge and skills as determinants of board control and advisory task performance. Further, we consider how two different institutional settings....... The findings show that: (i) Board processes have a larger potential than demographic variables to explain board task performance; (ii) board task performance differs significantly between boards operating in different contexts; and (iii) national context moderates the relationships between board processes...... and board task performance....

  3. Magnetic field on board

    International Nuclear Information System (INIS)

    Estevez Radio, H.; Fernandez Arenal, C.A.

    1995-01-01

    Here, the calculation of the magnetic field on board ships is performed, using matrix calculus, in a similar way as when the magnetic field in matter is studied. Thus the final formulas are written in a more compact form and they are obtained through a simpler way, more suitable for the university education. (Author)

  4. Validated Feasibility Study of Integrally Stiffened Metallic Fuselage Panels for Reducing Manufacturing Costs

    Science.gov (United States)

    Pettit, R. G.; Wang, J. J.; Toh, C.

    2000-01-01

    The continual need to reduce airframe cost and the emergence of high speed machining and other manufacturing technologies has brought about a renewed interest in large-scale integral structures for aircraft applications. Applications have been inhibited, however, because of the need to demonstrate damage tolerance, and by cost and manufacturing risks associated with the size and complexity of the parts. The Integral Airframe Structures (IAS) Program identified a feasible integrally stiffened fuselage concept and evaluated performance and manufacturing cost compared to conventional designs. An integral skin/stiffener concept was produced both by plate hog-out and near-net extrusion. Alloys evaluated included 7050-T7451 plate, 7050-T74511 extrusion, 6013-T6511 extrusion, and 7475-T7351 plate. Mechanical properties, structural details, and joint performance were evaluated as well as repair, static compression, and two-bay crack residual strength panels. Crack turning behavior was characterized through panel tests and improved methods for predicting crack turning were developed. Manufacturing cost was evaluated using COSTRAN. A hybrid design, made from high-speed machined extruded frames that are mechanically fastened to high-speed machined plate skin/stringer panels, was identified as the most cost-effective manufacturing solution. Recurring labor and material costs of the hybrid design are up to 61 percent less than the current technology baseline.

  5. Practice and Impact of Multidisciplinary Tumor Boards on Patient Management: A Prospective Study

    Directory of Open Access Journals (Sweden)

    Raghid N. Charara

    2017-06-01

    Full Text Available Purpose: Multidisciplinary tumor boards (MTBs have become commonplace. The use, attendance, and function of MTBs need continued assessment and improvement. Methods: We prospectively recorded and assessed all cases presented at MTBs between October 2013 and December 2014. Data were collected before and during each MTB. Data were analyzed using SPSS for Windows version 23 (SPSS, Chicago, IL. Results: Five hundred three cases were presented: 234 cases (46% at GI cancer MTBs, 149 cases (29.6% at breast cancer MTBs, 69 cases (13.7% at thoracic/head and neck cancer MTBs, and 51 cases (10.7% at neuro-oncology MTBs. A total of 86.7% of MTB cases were presented to make plans for management. Plans for upfront management were made in 67% of the breast cancer cases, 63% of GI cases, 59% of thoracic/head and neck cases, and 49% of neuro-oncology cases. Three hundred ninety-four cases (78.3% were presented by medical oncologists, whereas only 74 cases (14.7% were presented by surgeons, and 10 cases (2% were presented by radiation oncologists. The majority of MTBs, with the exception of the neurosurgery MTBs, were led by medical oncologists. Surgeons presented the least number of cases but attended the most, and their contributions to discussions and decision making were essential. Conclusion: MTBs enhance the multidisciplinary management of patients with cancer. Upfront multidisciplinary decision making should be considered as an indicator of benefit from MTBs, in addition to changes in management plans made at MTBs. Increasing the contributions of surgeons to MTBs should include bringing more of their own cases for discussion.

  6. Dialogue for emergent order : an empirical study of the development of the organisational mind in a Dutch manufacturing firm

    NARCIS (Netherlands)

    Eijnatten, van F.M.; Dijkstra, L.; van Galen, M.C.; Boiset, M.

    2001-01-01

    This paper contains an empirical study about the introduction of dialogue as a new mode of communication in a Dutch capital-equipment manufacturing firm. The goal of the project is to increase levels of self-organisation, self-reference, and self-transcendence in the company. Over a period of one

  7. Electronic business model for small- and medium-sized manufacturing enterprises (SME): a case study

    Science.gov (United States)

    Yuen, Karina; Chung, Walter W.

    2001-10-01

    This paper identifies three essential factors (information infrastructure, executive information system and a new manufacturing paradigm) that are used to support the development of a new business model for competitiveness. They facilitate changes in organization structure in support of business transformation. A SME can source a good manufacturing practice using a model of academic-university collaboration to gain competitive advantage in the e-business world. The collaboration facilitates the change agents to use information systems development as a vehicle to increase the capability of executives in using information and knowledge management to gain higher responsiveness and customer satisfaction. The case company is used to illustrate the application of a web-based executive information system to interface internal communications with external operation. It explains where a good manufacturing practice may be re-applied by other SMEs to acquire skills as a learning organization grows in an extended enterprise setting.

  8. Laser additive manufacturing of multimaterial tool inserts: a simulation-based optimization study

    DEFF Research Database (Denmark)

    Mohanty, Sankhya; Hattel, Jesper Henri

    2017-01-01

    laser additive manufacturing. The physical handling of multi-material in a SLM setup continues to be a primary challenge along with the selection of process parameters/plan to achieve the desired results – both challenges requiring considerable experimental undertakings. Consequently, numerical process...... which a layer of steel has been deposited using cold-spraying technique, such as to protect the microstructure of Ni during selective laser melting. The process modelled thus entails additively manufacturing a steel tool insert around the multi-material specimen with a goal of achieving a dense product......Selective laser melting is fast evolving into an industrially applicable manufacturing process. While components produced from high-value materials, such as Ti6Al4V and Inconel 718 alloys, are already being produced, the processing of multi-material components still remains to be achieved by using...

  9. A study on the applicability of just-in-time in manufacturing of ethanol

    Directory of Open Access Journals (Sweden)

    Marcelo Giroto Rebelato

    2012-08-01

    Full Text Available The aim of this paper is to analyze the applicability of the Just-in-Time (JIT System in manufacturing of ethanol. For this, were selected from the specialized literature the requirements that make up the JIT System so that each requirement identified was confronted to the characteristics and peculiarities of the process and current technology of producing ethanol. We conclude that, although the most significant requirement of the JIT system, manufacturing in the rhythm of "customer pull" is not possible in the manufacture of ethanol given the peculiar characteristic of its main raw material, sugarcane, we conclude that JIT is applicable to the ethanol production system and can bring real benefits to companies that adopt it.

  10. The Expedited Remedial Action Program: A case study. The Alhambra Front Street manufactured gas plant site

    Energy Technology Data Exchange (ETDEWEB)

    Padleschat, J.A.; McMahon, T.D.

    1996-12-31

    Early in 1995, the Department of Toxic Substances Control asked Southern California Gas Company (SoCalGas) to enter one of its manufactured gas plant (MGP) sites into the new Expedited Remedial Action Program (ERAP). SoCalGas initially was not enthusiastic about the new program. Nevertheless, SoCalGas submitted an application for its Alhambra MGP site to be selected for the ERAP. The Alhambra Site was accepted into ERAP in November 1995, and was the first ERAP site to have orphan shares. MGP sites are well suited to the ERAP. They often involve few potentially responsible parties and can be expected to have the same primary contaminants: polycyclic aromatic hydrocarbons (PAH), which are a byproduct of the gas manufacturing process, and petroleum hydrocarbons from the crude oil feedstock used to manufacture the gas.

  11. INTRODUCTION OF LEAN MANUFACTURING PHILOSOPHY BY KAIZEN EVENT: CASE STUDY ON A METALMECHANICAL INDUSTRY

    Directory of Open Access Journals (Sweden)

    Vinicius Mitsuo Kojima Campos

    2016-03-01

    Full Text Available The competitive scenario requires organizational strategies increasingly elaborated, creating the need of companies to structure their management models in order to absorb these conflicts generated by competition. The manufacturing area is financially affecting deeply the company's results, thus process improvement comes as the organization's survival guideline, and the rationalization of waste without the need for high investments, shown a great competitive alternative. The application of Kaizen event seeks to measure the benefits generated by the implementation of the philosophy of lean manufacturing, working setup aspects of machinery, the manufacturing process flow, reduced delivery lead-time and inventory process. The Kaizen Blitz was applied in a production cell of stamping and spirt processes. The obtained major improvements have been the reduction of machine setup time, reducing lead-time of item processing, the material flow within the production cell, and creating conditions for a more flexible management of the production schedule.

  12. Quantifying the robustness of process manufacturing concept – A medical product case study

    DEFF Research Database (Denmark)

    Boorla, Srinivasa Murthy; Troldtoft, M.E.; Eifler, Tobias

    2017-01-01

    Product robustness refers to the consistency of performance of all of the units produced. It is often the case that process manufactured products are not designed concurrently, so by the end of the product design phase the Process Manufacturing Concept (PMC) has yet to be decided. Allocating...... the unit-to-unit robustness of an early-stage for a PMC is proposed. The method uses variability and adjustability information from the manufacturing concept in combination with sensitivity information from products' design to predict its functional performance variation. A Technology maturation factor...... process capable tolerances to the product during the design phase is therefore not possible. The robustness of the concept (how capable it is to achieve the product specification), only becomes clear at this late stage and thus after testing and iteration. In this article, a method for calculating...

  13. Manufacturing tungsten monocrystal tubes by electro-spark machining and study of machined surface structure

    International Nuclear Information System (INIS)

    Abdukarimov, Eh.T.; Ismailov, L.R.; Krakhmalev, V.A.; Fershtat, L.N.

    1981-01-01

    A technique to manufacture tubes from tungsten monocrystals with low consumption of electrodes has been developed. Regimes of obtaining deep and through holes of different diameters with the productivity of 1 mm/min and with the minimum deviation from cylindrical shape are worked out using a specially designed electric pulse installation. X-ray and metallographical analyses have shown that as a result of electrospark machining a cold hardened layer is formed up to hundreds micrometers thick, pierced by the network of microcracks. Simultaneous use of electrospark and electrochemical machining permitted to manufacture tubes from tungsten monocrystals with non-distorted monocrystal surface and without a network of microcracks

  14. Prevalence and severity of dental erosion among jeep battery manufacturing workers at Metagalli, Mysore: A cross-sectional study

    Directory of Open Access Journals (Sweden)

    Jyothi Chavan

    2017-01-01

    Full Text Available Introduction: Majority of people employed in various industries are exposed to hazardous environment. Exposure to chemical agents in the workplace can result in adverse effects on workers. This exposure deteriorates the general and oral health of people, working in industries for long hours. Aim: The aim is to assess the prevalence and severity of dental erosion among battery manufacturing factory workers at Metagalli, Mysore, Karnataka, India. Materials and Methods: A total of 175 jeep battery manufacturing factory workers were enrolled and divided into study and comparison groups based on acid exposure. Demographic details of workers were recorded. Severity of dental erosion was calculated using Smith and Knight tooth wear index. The data were analyzed using Statistical Package for the Social Sciences version 17.0 software. Chi-square test was used to compare the categorical variables. Results: The prevalence of dental erosion among the jeep battery manufacturing factory workers was 80%. Majority of the participants in the study group had severe degree of dental erosion (scores of 3 and 4 when compared to the comparison group. Conclusion: Dental erosion was more prevalent among the jeep battery manufacturing factory workers. Study participants were the more affected group with dental erosion when compared to comparison group.

  15. Quantifying the Water Footprint of Manufactured Products: A Case Study of Pitcher Water Filters

    Directory of Open Access Journals (Sweden)

    Ashley Barker

    2012-01-01

    Full Text Available Fresh water is a finite resource that is critically needed bysociety for a variety of purposes. The demand for freshwater will grow as the world population and global livingstandard increase, and fresh water shortages will becomemore commonplace. This will put significant stress onsociety. It has been argued that fresh water may becomethe next oil, and efforts have to be made to better manageits fresh water consumption by agricultural and domesticusers. Industry also uses large amounts. Surprisingly, onlyrecently is serious attention being directed toward waterrelatedissues. This effort to quantify the water footprint ofa manufactured product represents one of the first initiativesto characterize the role of water in a discrete good.This study employed a life cycle assessment methodologyto determine the water footprint of a pitcher water filter.This particular product was selected because many waterintensivematerials and processes are needed to produceits major components: for example, agricultural processesused to produce activated carbon and petrochemicalprocesses used to produce the polypropylene casing. Inaddition, a large amount of water is consumed during theproduct’s use phase. Water data was obtained from theEcoinvent 2.1 database and categorized as either beingassociated with blue or green water.The blue water footprint (surface water consumption forthe pitcher water filter was 76 gallons per filter: 10 gallonsconsumed for materials extraction, 15 gallons for themanufacturing stage, and 50 gallons during the use phase.The green water footprint (precipitation was associatedwith the cultivation of the coconut tree; activated carbonis obtained from the coconut shells. The green waterfootprint was calculated to be 164 gallons per filter.The overall water footprint was 240 gallons per filter;the filter footprint is heavily dominated by green water(68% rather than blue water (32%. Future studies mayinvestigate how the production and

  16. Analysis of manual material handling activity to increase work productivity (Case study: manufacturing company

    Directory of Open Access Journals (Sweden)

    Suryoputro Muhammad Ragil

    2018-01-01

    Full Text Available Manual material handling is one of work activities that have an effect on the physical aspect of workers in manufacturing industry, it is necessary to do the analysis of the risks from such activities. Analysis was performed on worker when performing manual lifting activity and when using two tools (Automatic Handlift and Manual Handlift. In addition to analyse in ergonomics aspect, time study analysis and productivity measurement were carried out to determine the effects of the equipment. Nordic Body Map (NBM questionnaire on worker using Automatic Handlift showed declining level of musculoskeletal disorders by 22%. REBA method obtained score of 10 and was declined to 4 after using these tool. The results of MPL method showed declining of Fc value from 4756.37 N to 1346.56 N. The results of RWL method showed declining of LI value (Lifting Index origin and destination from 1.84 and 1.18 to 1.12 and 0.89 respectively. As for worker using Manual Handlift, NBM questionnaire result shows declining level of musculoskeletal disorders by 57%. REBA method obtained scores of 8 and was reduced to 5. For MPL methode result, the Fc value is 4906.99 N and reduced to 2047.88 N. RWL method results showed declining of LI value (Lifting Index origin and destination from 1.02 and 0.67 to 0.74 and 0.58. The results of time study analysis showed declining of Standard Time when use the two tools and make the increasing productivity of 9% by worker using Automatic Hadlift and 4% by worker using Manual Handlift.

  17. Nurturing a service orientated paradigm of management within a traditionally manufacturing enterprise: A South African case study

    Directory of Open Access Journals (Sweden)

    Richard Weeks

    2011-12-01

    Full Text Available Purpose: The purpose of this paper is to analyse and draw a correlation between service science theory and practice as it relates to the complexity of engendering a services orientated paradigm of management within a traditionally manufacturing enterprise. It is suggested that the traditional manufacturing paradigm is founded on scientific management principles whereas that of service science is far more multidisciplinary and complex in nature. It would seem that the service science paradigm is directed at co-creational value in contrast to a transactional paradigm of management that form the foundation of the manufacturing era. Problem investigated: With the emergence of an essentially services orientated global economy, manufacturing enterprises are increasing adding a range of services to the value offerings they make available to clients. The first part of this paper constitutes a literature study directed at gaining a theoretical understanding and insight into the underlying principles of management involved in moving from an essentially manufacturing management setting to one that incorporates services and in some instances where services assume the dominant paradigm of management. The second part of the paper attempts to correlate the theoretical insights gain from the literature study with relation to that of practice by means of a case study undertaken at a South African manufacturing enterprise that has implemented a servitization strategy. Methodology: A multidisciplinary literature review and analysis is undertaken to gain an insight of contemporary management theory and practice, as it relates to servitization or the transition from an essentially manufacturing to a services inclusive operational setting. With the insights gained from the literature research serving as a source of information and reference a case study was undertaken at a South African enterprise to determine if a correlation exists between theory as expressed in

  18. 78 FR 69373 - Board of Overseers of the Malcolm Baldrige National Quality Award

    Science.gov (United States)

    2013-11-19

    ..., manufacturing, nonprofit, education, and health care industries. The Board includes members familiar with the..., small businesses, health care providers, and educational institutions. Members are also chosen who have...

  19. Meeting of the ITER CTA Project Board

    International Nuclear Information System (INIS)

    2001-01-01

    Full text: A preparatory meeting of the Co-ordinated Technical Activities (CTA) Project Board took place in Vienna on 16 July 2001. The Board Members of Canada, EU, Japan, RF and of the CTA International Team participated in the Meeting, which was chaired by Acad. E. Velikhov. The major item on the Meeting Agenda was the discussion of the scope of the CTA. In this discussion the following comments were expressed: One of the prime objectives during the CTA is to develop technical specifications for procurement of critical items (magnets, vacuum vessel, and buildings). It was noted that the discussions with potential suppliers should confirm manufacturing processes in details in order to explore possible schedule reduction strategies. Safety analysis and licensing preparation should proceed on all proposed sites up to the preferred site designation, to ensure the overall implementation schedule is minimized and to resolve major technical issues needed for licensing. Several R and D issues remain to be further developed during the CTA. Special attention should be given by the Participants to two areas: Diagnostics; Heating and Current Drive Systems. Arrangements for continuation of the ITER Physics Expert Groups activities should be provided. To this end a new framework, called International Tokamak Physics Activity, is being planned. The Board encouraged the Participants' Representatives in the Co-ordinating committee of this activity to support the preparation for urgent Topical Group Meetings. The Board agreed that the Design Authority will be invested in the International Team and that proposals for site specific design changes should be agreed upon by the International Team Leader before being studied in detail. The Meeting agreed on some arrangements which will remain from the EDA, namely the ITER EDA Council Office in Moscow as Office of the PB Chair, and the ITER Office located at the IAEA in Vienna as agreed by the IAEA. The Board recommended that effective

  20. Hospital board effectiveness: relationships between board training and hospital financial viability.

    Science.gov (United States)

    Molinari, C; Morlock, L; Alexander, J; Lyles, C A

    1992-01-01

    This study examined whether hospital governing boards that invest in board education and training are more informed and effective decision-making bodies. Measures of hospital financial viability (i.e., selected financial ratios and outcomes) are used as indicators of hospital board effectiveness. Board participation in educational programs was significantly associated with improved profitability, liquidity, and occupancy levels, suggesting that investment in the education of directors is likely to enhance hospital viability and thus increase board effectiveness.

  1. Payments by US pharmaceutical and medical device manufacturers to US medical journal editors: retrospective observational study

    Science.gov (United States)

    Bell, Chaim M; Matelski, John J; Detsky, Allan S; Cram, Peter

    2017-01-01

    Objective To estimate financial payments from industry to US journal editors. Design Retrospective observational study. Setting 52 influential (high impact factor for their specialty) US medical journals from 26 specialties and US Open Payments database, 2014. Participants 713 editors at the associate level and above identified from each journal’s online masthead. Main outcome measures All general payments (eg, personal income) and research related payments from pharmaceutical and medical device manufacturers to eligible physicians in 2014. Percentages of editors receiving payments and the magnitude of such payments were compared across journals and by specialty. Journal websites were also reviewed to determine if conflict of interest policies for editors were readily accessible. Results Of 713 eligible editors, 361 (50.6%) received some (>$0) general payments in 2014, and 139 (19.5%) received research payments. The median general payment was $11 (£8; €9) (interquartile range $0-2923) and the median research payment was $0 ($0-0). The mean general payment was $28 136 (SD $415 045), and the mean research payment was $37 963 (SD $175 239). The highest median general payments were received by journal editors from endocrinology ($7207, $0-85 816), cardiology ($2664, $0-12 912), gastroenterology ($696, $0-20 002), rheumatology ($515, $0-14 280), and urology ($480, $90-669). For high impact general medicine journals, median payments were $0 ($0-14). A review of the 52 journal websites revealed that editor conflict of interest policies were readily accessible (ie, within five minutes) for 17/52 (32.7%) of journals. Conclusions Industry payments to journal editors are common and often large, particularly for certain subspecialties. Journals should consider the potential impact of such payments on public trust in published research. PMID:29074628

  2. Wood Dust in Joineries and Furniture Manufacturing: An Exposure Determinant and Intervention Study.

    Science.gov (United States)

    Douwes, Jeroen; Cheung, Kerry; Prezant, Bradley; Sharp, Mark; Corbin, Marine; McLean, Dave; 't Mannetje, Andrea; Schlunssen, Vivi; Sigsgaard, Torben; Kromhout, Hans; LaMontagne, Anthony D; Pearce, Neil; McGlothlin, James D

    2017-05-01

    To assess wood dust exposures and determinants in joineries and furniture manufacturing and to evaluate the efficacy of specific interventions on dust emissions under laboratory conditions. Also, in a subsequent follow-up study in a small sample of joinery workshops, we aimed to develop, implement, and evaluate a cost-effective and practicable intervention to reduce dust exposures. Personal inhalable dust (n = 201) was measured in 99 workers from 10 joineries and 3 furniture-making factories. To assess exposure determinants, full-shift video exposure monitoring (VEM) was conducted in 19 workers and task-based VEM in 32 workers (in 7 joineries and 3 furniture factories). We assessed the efficacy of vacuum extraction on hand tools and the use of vacuum cleaners instead of sweeping and dry wiping under laboratory conditions. These measures were subsequently implemented in three joinery workshops with 'high' (>4 mg m-3) and one with 'low' (joinery and furniture making were 2.5 mg m-3 [geometric standard deviations (GSD) 2.5] and 0.6 mg m-3 (GSD 2.3), respectively. In joinery workers cleaning was associated with a 3.0-fold higher (P joineries, a borderline statistically significant (P joinery workers and (to a lesser extent) furniture makers with frequent use of hand tools and cleaning being key drivers of exposure. Vacuum extraction on hand tools and alternative cleaning methods reduced workplace exposures substantially, but may be insufficient to achieve compliance with current occupational exposure limits. © The Author 2017. Published by Oxford University Press on behalf of the British Occupational Hygiene Society.

  3. Building Lean Supply Chain and Manufacturing Skills through an Interactive Case Study

    Science.gov (United States)

    Ozelkan, Ertunga C.; Teng, S. Gary; Johnson, Thomas; Benson, Tom; Nestvogel, Dean

    2007-01-01

    With the ongoing global pressure to cut costs and focus on quality, many companies have been implementing "lean manufacturing" concepts to survive in the competitive marketplace. Thus it is imperative that engineering and business graduates are equipped with the lean principles, and are ready to take ownership of lean initiatives as they enter the…

  4. Does Lean Production Sacrifice Learning in a Manufacturing Environment? An Action Learning Case Study.

    Science.gov (United States)

    Scott, Fiona M.; Butler, Jim; Edwards, John

    2001-01-01

    An action learning program was implemented by a manufacturer using lean production practices. Action learning practices were accommodated during times of stability, but abandoned in times of crisis. The meaning of work in this organizational culture excluded all practices, such as reflection, that were not visible and targeted at immediate…

  5. Study of flow stress and spall strength of additively manufactured Ti-6-4 alloy

    Science.gov (United States)

    Cohen, Amitay; Paris, Vitaly; Yosef-Hai, Arnon; Gudinetsky, Eli; Tiferet, Eitan

    2017-06-01

    The use of additive manufacturing (AM) by Electron Beam Melting (EBM) or Selective Laser Melting (SLM) has extensively grown in the past few years. A major goal in AM is to manufacture materials with mechanical properties at least as good as traditionally manufactured materials. In this work we present results of planar impact tests and Split Hopkinson Pressure Bar tests (SHPB) on Ti-6-4 manufactured by EBM and SLM processes. Results of planar impact tests on SLM samples display slightly higher spall strength compared to EBM while the stress at Hugoniot elastic limit (HEL) is practically the same. Stress strain curves based on SHPB measurements at two different strain rates present similar plastic flow stresses for SLM and EBM processed Ti-6-4 alloy, while the flow stress is about 20% higher than reported for commercial reference material. The strain to failure of both materials shows considerable strain rate sensitivity. The results of post-mortem analysis of spall fracture will also be presented.

  6. Manufacturing of the ISO 25178-70 material measures with direct laser writing: a feasibility study

    Science.gov (United States)

    Eifler, M.; Hering, J.; von Freymann, G.; Seewig, J.

    2018-06-01

    The standard ISO 25178-70 defines material measures for the calibration of 2D- and 3D-topography measurement devices. Some of the suggested material measures are established within the industrial application for a long time while others have not yet been extensively researched regarding their practical abilities. This paper describes a holistic and systematic investigation of the ISO 25178-70 material measures. The manufacturing of the suggested geometries is executed with two-photon laser lithography, alias direct laser writing (DLW). Since this manufacturing process is not yet frequently used in a material measures context, it is examined regarding its suitability for the fabrication of the ISO 25178-70 material measures. With DLW, it is possible to manufacture multiple material measures on one sample in order to enable a comprehensive calibration of optical topography measurement devices. The manufactured ISO 25178-70 geometries are examined using different 3D-topography measuring devices. In doing so, their abilities regarding the calibration of the devices can be evaluated and the practical feasibility of their industrial application is assessed. For the review of this practical usefulness, varying calibration and evaluation strategies are taken into account.

  7. International manufacturing and logistics: application of a design method in five case studies

    NARCIS (Netherlands)

    Vos, G.C.J.M.

    1993-01-01

    International manufacturing and logistics has become an important topic for an increasing number of industrial firms. In this paper, a design method will be described which is aimed at supporting managers in decisions regarding the (re)design of international logistic structures. The heart of this

  8. Madagascar : Incentives and Obstacles to Trade - Lessons from Manufacturing Case Studies

    OpenAIRE

    Olivier Cadot; John Nasir

    2002-01-01

    Despite fiscal and administrative reforms pursued by the Government of Madagascar since the mid 1980s, to prod economic and financial liberalization, contributing to steady GDP growth rates, manufacturing production however, still represents a relatively small share of value added. And, the development of import-substituting (IS) firms has been considerably slower, showing stagnating signs...

  9. Case Study: Commercialization of sweet sorghum juice clarification for large-scale syrup manufacture

    Science.gov (United States)

    The precipitation and burning of insoluble granules of starch from sweet sorghum juice on heating coils prevented the large scale manufacture of syrup at a new industrial plant in Missouri, USA. To remove insoluble starch granules, a series of small and large-scale experiments were conducted at the...

  10. A study on the real-time reliability of on-board equipment of train control system

    Science.gov (United States)

    Zhang, Yong; Li, Shiwei

    2018-05-01

    Real-time reliability evaluation is conducive to establishing a condition based maintenance system for the purpose of guaranteeing continuous train operation. According to the inherent characteristics of the on-board equipment, the connotation of reliability evaluation of on-board equipment is defined and the evaluation index of real-time reliability is provided in this paper. From the perspective of methodology and practical application, the real-time reliability of the on-board equipment is discussed in detail, and the method of evaluating the realtime reliability of on-board equipment at component level based on Hidden Markov Model (HMM) is proposed. In this method the performance degradation data is used directly to realize the accurate perception of the hidden state transition process of on-board equipment, which can achieve a better description of the real-time reliability of the equipment.

  11. Manufacturing studies of double wall components for the ITER EC H and CD upper launcher

    International Nuclear Information System (INIS)

    Spaeh, P.; Aiello, G.; Goldmann, A.; Kleefeldt, K.; Kroiss, A.; Meier, A.; Obermeier, C.; Scherer, T.; Schreck, S.; Serikov, A.; Strauss, D.; Vaccaro, A.

    2012-01-01

    Highlights: ► Double wall manufacturing technologies for ITER In-vessel components. ► Rigid and safe accommodation of ECRH heating and current drive systems. ► Thermo hydraulic analysis of coolant flow in double-wall structures. - Abstract: To counteract plasma instabilities, Electron Cyclotron Launchers will be installed in four of the ITER Upper Ports. The structural system of an EC Upper Launcher accommodates the MM-wave-components and has to meet strong demands on alignment, removal of nuclear heat loads, mechanical strength and nuclear shielding. The EC Upper Launcher has successfully undergone the Preliminary Design Review in 2009 and is now in the final design phase. Nuclear heat loads from 0.1 W/cm 3 up to 0.8 W/cm 3 will affect the front area of the launcher main frame. To guarantee save and homogenous removal of those heat loads, the front part of the launcher main frame is designed as a double wall steel-casing with cooling channels inside the shell structure. To finalize the design of this double wall component, the main emphasis is now to define the cooling channels geometry and to identify the optimum manufacturing route to assure adequate flow of coolant and sufficient mechanical strength in compliance with required dimension tolerances and quality of the welds. Several manufacturing options have been investigated and were evaluated by computational analysis and fabrication of pre-prototypes. To come to a final design, the most promising route will be chosen to manufacture a full-size mock-up of the double wall main frame. It will be tested at the KIT Launcher Handling Test facility to check the compliance with the design goals related to geometrical accuracy and thermo-hydraulic characteristics. This paper describes the design and the manufacturing routes of the prototypic double wall main frame.

  12. Manufacturing studies of double wall components for the ITER EC H and CD upper launcher

    Energy Technology Data Exchange (ETDEWEB)

    Spaeh, P., E-mail: peter.spaeh@kit.edu [Institute for Applied Materials, Karlsruhe Institute of Technology, P.O. Box 3640, D-76021 Karlsruhe (Germany); Aiello, G. [Institute for Applied Materials, Karlsruhe Institute of Technology, P.O. Box 3640, D-76021 Karlsruhe (Germany); Goldmann, A. [MAN Diesel and Turbo, D-94452 Deggendorf, P.O. Box 3640, D-76021 Karlsruhe (Germany); Kleefeldt, K. [Institute for Applied Materials, Karlsruhe Institute of Technology, P.O. Box 3640, D-76021 Karlsruhe (Germany); Kroiss, A. [MAN Diesel and Turbo, D-94452 Deggendorf, P.O. Box 3640, D-76021 Karlsruhe (Germany); Meier, A. [Institute for Applied Materials, Karlsruhe Institute of Technology, P.O. Box 3640, D-76021 Karlsruhe (Germany); Obermeier, C. [MAN Diesel and Turbo, D-94452 Deggendorf, P.O. Box 3640, D-76021 Karlsruhe (Germany); Scherer, T.; Schreck, S. [Institute for Applied Materials, Karlsruhe Institute of Technology, P.O. Box 3640, D-76021 Karlsruhe (Germany); Serikov, A. [Institute for Neutron Physics and Reactor Technology, Karlsruhe Institute of Technology, P.O. Box 3640, D-76021 Karlsruhe (Germany); Strauss, D.; Vaccaro, A. [Institute for Applied Materials, Karlsruhe Institute of Technology, P.O. Box 3640, D-76021 Karlsruhe (Germany)

    2012-08-15

    Highlights: Black-Right-Pointing-Pointer Double wall manufacturing technologies for ITER In-vessel components. Black-Right-Pointing-Pointer Rigid and safe accommodation of ECRH heating and current drive systems. Black-Right-Pointing-Pointer Thermo hydraulic analysis of coolant flow in double-wall structures. - Abstract: To counteract plasma instabilities, Electron Cyclotron Launchers will be installed in four of the ITER Upper Ports. The structural system of an EC Upper Launcher accommodates the MM-wave-components and has to meet strong demands on alignment, removal of nuclear heat loads, mechanical strength and nuclear shielding. The EC Upper Launcher has successfully undergone the Preliminary Design Review in 2009 and is now in the final design phase. Nuclear heat loads from 0.1 W/cm{sup 3} up to 0.8 W/cm{sup 3} will affect the front area of the launcher main frame. To guarantee save and homogenous removal of those heat loads, the front part of the launcher main frame is designed as a double wall steel-casing with cooling channels inside the shell structure. To finalize the design of this double wall component, the main emphasis is now to define the cooling channels geometry and to identify the optimum manufacturing route to assure adequate flow of coolant and sufficient mechanical strength in compliance with required dimension tolerances and quality of the welds. Several manufacturing options have been investigated and were evaluated by computational analysis and fabrication of pre-prototypes. To come to a final design, the most promising route will be chosen to manufacture a full-size mock-up of the double wall main frame. It will be tested at the KIT Launcher Handling Test facility to check the compliance with the design goals related to geometrical accuracy and thermo-hydraulic characteristics. This paper describes the design and the manufacturing routes of the prototypic double wall main frame.

  13. Micro Manufacturing

    DEFF Research Database (Denmark)

    Hansen, Hans Nørgaard

    2003-01-01

    Manufacturing deals with systems that include products, processes, materials and production systems. These systems have functional requirements, constraints, design parameters and process variables. They must be decomposed in a systematic manner to achieve the best possible system performance....... If a micro manufacturing system isn’t designed rationally and correctly, it will be high-cost, unreliable, and not robust. For micro products and systems it is a continuously increasing challenge to create the operational basis for an industrial production. As the products through product development...... processes are made applicable to a large number of customers, the pressure in regard to developing production technologies that make it possible to produce the products at a reasonable price and in large numbers is growing. The micro/nano manufacturing programme at the Department of Manufacturing...

  14. Smart Manufacturing.

    Science.gov (United States)

    Davis, Jim; Edgar, Thomas; Graybill, Robert; Korambath, Prakashan; Schott, Brian; Swink, Denise; Wang, Jianwu; Wetzel, Jim

    2015-01-01

    Historic manufacturing enterprises based on vertically optimized companies, practices, market share, and competitiveness are giving way to enterprises that are responsive across an entire value chain to demand dynamic markets and customized product value adds; increased expectations for environmental sustainability, reduced energy usage, and zero incidents; and faster technology and product adoption. Agile innovation and manufacturing combined with radically increased productivity become engines for competitiveness and reinvestment, not simply for decreased cost. A focus on agility, productivity, energy, and environmental sustainability produces opportunities that are far beyond reducing market volatility. Agility directly impacts innovation, time-to-market, and faster, broader exploration of the trade space. These changes, the forces driving them, and new network-based information technologies offering unprecedented insights and analysis are motivating the advent of smart manufacturing and new information technology infrastructure for manufacturing.

  15. Automated microfluidic platform for systematic studies of colloidal perovskite nanocrystals: towards continuous nano-manufacturing.

    Science.gov (United States)

    Epps, Robert W; Felton, Kobi C; Coley, Connor W; Abolhasani, Milad

    2017-11-21

    Colloidal organic/inorganic metal-halide perovskite nanocrystals have recently emerged as a potential low-cost replacement for the semiconductor materials in commercial photovoltaics and light emitting diodes. However, unlike III-V and IV-VI semiconductor nanocrystals, studies of colloidal perovskite nanocrystals have yet to develop a fundamental and comprehensive understanding of nucleation and growth kinetics. Here, we introduce a modular and automated microfluidic platform for the systematic studies of room-temperature synthesized cesium-lead halide perovskite nanocrystals. With abundant data collection across the entirety of four orders of magnitude reaction time span, we comprehensively characterize nanocrystal growth within a modular microfluidic reactor. The developed high-throughput screening platform features a custom-designed three-port flow cell with translational capability for in situ spectral characterization of the in-flow synthesized perovskite nanocrystals along a tubular microreactor with an adjustable length, ranging from 3 cm to 196 cm. The translational flow cell allows for sampling of twenty unique residence times at a single equilibrated flow rate. The developed technique requires an average total liquid consumption of 20 μL per spectra and as little as 2 μL at the time of sampling. It may continuously sample up to 30 000 unique spectra per day in both single and multi-phase flow formats. Using the developed plug-and-play microfluidic platform, we study the growth of cesium lead trihalide perovskite nanocrystals through in situ monitoring of their absorption and emission band-gaps at residence times ranging from 100 ms to 17 min. The automated microfluidic platform enables a systematic study of the effect of mixing enhancement on the quality of the synthesized nanocrystals through a direct comparison between single- and multi-phase flow systems at similar reaction time scales. The improved mixing characteristics of the multi-phase flow

  16. 78 FR 52171 - State Energy Advisory Board (STEAB)

    Science.gov (United States)

    2013-08-22

    ... EERE with the Clean Energy Manufacturing Initiative and other proposed programs, provide an update to...; reasonable provision will be made to include requested topic(s) on the agenda. The Chair of the Board is...

  17. 78 FR 44943 - State Energy Advisory Board (STEAB)

    Science.gov (United States)

    2013-07-25

    ... to assist EERE with the Clean Energy Manufacturing Initiative and other proposed programs, provide an... be made to include requested topic(s) on the agenda. The Chair of the Board is empowered to conduct...

  18. Ergonomic study of biorhythm effect on the 62 occurrence of human errors and accidents in automobile manufacturing industry

    OpenAIRE

    2012-01-01

    Background and Aim: According to the biorhythm theory when the phase shift from positive to negative and vice versa people experience a critical an unstable day that prone them to error and accident. The purpose of this study is to determine this relationship in one of the automobile manufacturing industry. . Materials and Methods: At first 1280 person incident entered the study was reviewed and then the critical days of each biological cycle was determined using the software Easy Biorh...

  19. CNES studies for on-board implementation via HLS tools of a cloud-detection module for selective compression

    Science.gov (United States)

    Camarero, R.; Thiebaut, C.; Dejean, Ph.; Speciel, A.

    2010-08-01

    Future CNES high resolution instruments for remote sensing missions will lead to higher data-rates because of the increase in resolution and dynamic range. For example, the ground resolution improvement has induced a data-rate multiplied by 8 from SPOT4 to SPOT5 [1] and by 28 to PLEIADES-HR [2]. Innovative "smart" compression techniques will be then required, performing different types of compression inside a scene, in order to reach higher global compression ratios while complying with image quality requirements. This socalled "selective compression", allows important compression gains by detecting and then differently compressing the regions-of-interest (ROI) and non-interest in the image (e.g. higher compression ratios are assigned to the non-interesting data). Given that most of CNES high resolution images are cloudy [1], significant mass-memory and transmission gain could be reached by just detecting and suppressing (or compressing significantly) the areas covered by clouds. Since 2007, CNES works on a cloud detection module [3] as a simplification for on-board implementation of an already existing module used on-ground for PLEIADES-HR album images [4]. The different steps of this Support Vector Machine classifier have already been analyzed, for simplification and optimization, during this on-board implementation study: reflectance computation, characteristics vector computation (based on multispectral criteria) and computation of the SVM output. In order to speed up the hardware design phase, a new approach based on HLS [5] tools is being tested for the VHDL description stage. The aim is to obtain a bit-true VDHL design directly from a high level description language as C or Matlab/Simulink [6].

  20. Model studies of migration from paper and board into fruit and vegetables and into Tenax as a food simulant.

    Science.gov (United States)

    Bradley, E L; Castle, L; Speck, D R

    2014-01-01

    Four samples of paper and board (P/B) of a type used for packaging dry foods were subjected to migration tests using mushrooms, apples, potatoes and bananas, and using the polymeric powder Tenax as a food simulant. The P/B samples contained only low levels of diisopropylnaphthalene (DiPN) and diisobutyl phthalate (DiBP) and so the experiments were conducted after impregnating the P/B with added model substances. These were o-xylene, acetophenone, dodecane, benzophenone, DiPN and DiBP. Migration levels depended strongly on the nature of the substance and on the nature of the food and much less on the characteristics of the P/B, except insofar as they affected the contact area - flexible papers giving more extensive contact with the food than thick rigid board. Migration into Tenax was at least a factor of 10 higher than migration into the fresh fruit and vegetables. The food samples were placed in contact with the P/B and then overwrapped loosely with aluminium foil and so this correction factor will tend to be conservative compared with a more open storage of the packed foods. Washing, peeling or cooking the fruits and vegetables after contact with the P/B had a surprisingly small effect on contaminant levels in general, and no one processing step was effective in giving a significant reduction of all the types of chemicals studied. This was because either they had penetrated into the food (so resisting peeling), or were not freely water-soluble (so resisting washing) or were not particularly volatile (so resisting loss by evaporation during cooking).

  1. Cleaner Technology in the Hard Disk Drive Manufacturing Industry: A Case Study

    Science.gov (United States)

    Moolla, Premchai; Chompu-inwai, Rungchat

    2010-10-01

    The objectives of this research are to improve raw material and energy consumption efficiency, as well as reduce defects and the use of chemicals in the arm coil assembly process of hard disk drive manufacturing in the case study company by applying the Cleaner Technology concepts. The four main sequential steps used in this research were: (1) pre-assessment, (2) assessment, (3) feasibility study, and (4) implementation. In the first step, raw data, such as process flows, raw material usage and defects data were collected. In the second step, the loss during production and causes of loss were analyzed. Opportunities to reduce raw material, chemical and energy wastage could then be recommended. The next step was to evaluate the feasibility and potential benefits of a particular Cleaner Technology opportunity. Finally, in the last step, after a thorough evaluation and implementation of the opportunities to apply Cleaner Technology, the results showed that arm coil defects could be reduced by improving the production process using the ECRS technique. ECRS stands for Eliminate, Combine, Rearrange and Simplify. This improvement reduced arm coil defect rates from 0.48% to 0.15%, thus saving approximately 139,638 Thai Baht per month. In addition, production stoppage decision made by workers was used to increase employee involvement in defect detection. Allowing workers to participate in such a decision was an effective way to reduce defect rate and could motivate workers to produce a better quality job. This resulted in arm coil defects reducing from 0.41% to 0.025%, with about 74,562 Thai Baht per month saving. Additionally, an increase in the efficiency of electricity consumption occurred, by increasing the speed of the infrared oven conveyor belt, improving average productivity from 533 pieces/hour to 560 pieces/hour, without adversely affecting product costs and quality, thus producing products of up to the value of 206,242 Thai Baht per month. Furthermore, the new

  2. Potential of Using Recycled Low-Density Polyethylene in Wood Composites Board

    Directory of Open Access Journals (Sweden)

    A. C. Igboanugo

    2011-03-01

    Full Text Available The aim of this study was to investigate the suitability of using recycled low density polyethylene (RLDPE in wood board manufacturing. The composite board was produced by compressive moulding by increasing the percentage LDPE from 30 to 50wt% with interval of 10wt% at a temperatures of 140 and 180oC, pressure of 30-40 Kg/cm2 and pressing time 7-13minutes. The microstructure and mechanical properties: modulus of rupture (MOR, modulus of elasticity (MOE, Tensile strength, impact strength properties of boards were determined. The results showed that high modulus of rupture of 20.31N/mm2and MOE of 1363N/mm2 were obtained from board produced at 140oC, 60/40wt% wood particles/LDPE content. The uniform distribution of the particles and the recycled LDPE in the microstructure of the composites board is the major factor responsible for the improvement in the mechanical properties. The results showed that the MOE, MOR meets the minimum requirements of the European standards, for general purpose. The boards produced had tensile strength that is within the requirement. Hence this LDPE can be used in board production for general purpose applications.

  3. Study on the Key Factor Parameters to Increase Productivity in Construction and Manufacturing Industries.

    Science.gov (United States)

    Almazyed, K.; Alaswad, A.; Olabi, A. G.

    2016-02-01

    Proper management of human and non-human resources in construction and manufacturing projects can give-in considerable savings in time and cost. Construction and Manufacturing industry faces issues in connection with problems related with productivity and the problems are usually connected with performance of employees. The performance of employees is affected by many factors. In this paper a survey was made on respondents who are employed various projects of Saudi Arabia. The researcher developed a theoretical framework from the existing research which was used as a Model to collect and analyze the field data to test the hypothesis. In this research activity three predictors (commitment, job satisfaction and job performance) for determining the change in productivity. The results highlight that commitment and job performance (respectively) are the two predictors which are explaining 37% of variation in the productivity of the companies. The results also show that Job Satisfaction has no role in the prediction of productivity.

  4. The study and design of a national supply chain for the aerospace titanium components manufacturing industry

    Directory of Open Access Journals (Sweden)

    Lene van der Merwe

    2012-11-01

    Full Text Available Titanium’s strength-to-density ratio, corrosion resistance and high thermal compatibility makes it the perfect metal for aerospace. Titanium is for instance used for the structural airframe, seat tracks, engine components and landing gear of aircraft. The Boeing 787 that had its test flight in 2009 is one of the latest aircraft designs that incorporates a substantially higher percentage of parts manufactured from titanium due to the weight benefit. Titanium’s extensive use in aerospace applications ensures that the aerospace market is the main driver of titanium metal demand. South Africa is the second largest titanium producer in the world after Australia. The abundance of titanium in South Africa together with the growing demand has led it to be identified as a beneficiation priority in a collaborative government initiative, called Titanium Beneficiation Initiative (TBI. The purpose of this paper is to develop a supply chain model for the anticipated South African titanium component manufacturing industry.

  5. The Balance Sheet As an Earnings Management Constraint (Case Study In Indonesia Manufacture Company

    Directory of Open Access Journals (Sweden)

    Dwi Sudaryati

    2015-11-01

    Full Text Available This research has the purpose to examine the balance sheet existence as an earnings management constraint. This research use the secondary which it is taken from the quarterly financial statement of manufacture companies listed on Indonesia Stock Exchange (IDX during 2008-2009 periods. This research used 68 manufacture companies as its sample. Then, the obtained data has regression analyzed by Generalized Ordered Logit Model. The Output of regression indicates that there is significant relation between net assets with the earnings surprise. The reporting earnings surprise smaller negative or larger positive decrease when the value of net asset is overstated. So, it can be concluded that balance sheet is as an earnings management constraint.

  6. Case Study Analysing Potentials to Improve Material Efficiency in Manufacturing Supply Chains, Considering Circular Economy Aspects

    Directory of Open Access Journals (Sweden)

    Anja T. Braun

    2018-03-01

    Full Text Available In order to decouple economic growth from global material consumption it is necessary to implement material efficiency strategies at the level of single enterprises and their supply chains, and to implement circular economy aspects. Manufacturing firms face multiple implementation challenges like cost limitations, competition, innovation and stakeholder pressure, and supplier and customer relationships, among others. Taking as an example a case of a medium-sized manufacturing company, opportunities to realise material efficiency improvements within the company borders—on the supply chain and by using circular economy measures—are assessed. Deterministic calculations and simulations, performed for the supply chain of this company, show that measures to increase material efficiency in the supply chain are important. However, they need to be complemented by efforts to return waste and used products to the economic cycle, which requires rethinking the traditional linear economic system.

  7. Trade Liberalization and Productivity-A Panel Study of the Mexican Manufacturing Industry

    OpenAIRE

    Talan Iscan

    1998-01-01

    In recent years there has been a revival of interest in the trade-growth nexus. A number of authors have suggested that regional economic integration and liberalization of international trade are likely to have positive effects not only on productivity levels but also on long-term productivity growth rates in developing countries. Using a panel of Mexican manufacturing industries, this paper examines several alternative mechanisms through which trade contributes positively to productivity lev...

  8. Challenges to Lean Six Sigma Implementation - A Case Study of a Manufacturing Facility in Singapore

    OpenAIRE

    Teo, I Jyn Alvin

    2009-01-01

    Companies today constantly seek to lower costs, maintain high level of quality and improve delivery for both manufactured products and services to achieve and sustain competitive advantage. Most companies seek to achieve all this through the implementation of continuous improvement initiatives. Amongst the various continuous improvement initiatives, Lean and Six Sigma have been the most popular and widely adopted. In recent years, the term Lean Six Sigma has been used to describe a management...

  9. A Study of Job Attitudes in the Manufacturing, Contracting, and Acquisition Officer Career Fields

    Science.gov (United States)

    1990-09-01

    natural incentives. The government, therefore, must create an environment in which both government employees and contractors have self-evident reasons for...in a hierarchical order. The five main needs listed in order are: physiological, safety, belongingness and love, esteem, 25 and self-actualization...the lower needs, then needs such as belongingness , self-esteem, and self-actualization could be the ones that are troubling manufacturing officers. The

  10. Application of Lean Focus onManufacturing Process : A Case Study of an American Furniture Company

    OpenAIRE

    ZHAO, QIAN; ZHOU, BOWEN

    2010-01-01

    Introduction: To improvement the target company’s manufacturing process by applyinglean principles, including using and analyzing the internal value stream mapping. Asmore and more companies have paid attention to implement lean thinking in theirmanufacturing process, the value stream mapping played an important role for manycompanies to make a transition from their traditional production systems to lean systems.The content and resources of this master thesis come from an American furnitureco...

  11. ANALISIS PEMBOROSAN PERUSAHAAN MEBEL DENGAN PENDEKATAN LEAN MANUFACTURING (Studi Kasus PT “X” Indonesia

    Directory of Open Access Journals (Sweden)

    Sri Hartini

    2012-02-01

    Full Text Available Lean Manufacturing merupakan pendekatan untuk mengefisienkan system dengan mereduksi pemborosan. Pendekatan ini dilakukan dengan memahami gambaran umum perusahaan melalui aliran informasi dan material di lantai produksi dengan membuat value stream mapping. Aktivitas ini dikelompokkan dalam value added, non value added, dan necessary non value added. Penelitian ini menghasilkan value stream mapping (VSM perusahaan yang meliputi aliran material dan informasi. Dari VSM diketahui peta aktivitas-aktivitas pemborosan di lantai pabrik. Penelitian ini berhasil merinci besar value-adding activity rata-rata sebesar 50.30%, non value-adding activity sebesar 21.83% dan necessary non value-adding activity sebesar 26.36%. Dari PMEA diketahui nilai RPN terbesar pada aktivitas yang berhubungan dengan jig. Untuk mereduksi pemborosan perlu dilakukan management jig yang lebih baik. Kata kunci: fishbone diagram, FMEA, lean manufacturing, value stream mapping.     Lean Manufacturing is an approach to make system more efficient by reducing waste. This approach is done by understanding the general outlook of company using value stream mapping of information and material flow in production line. These activities are classified by value added activities, non-value added activities, and necessary value added activities. This research delivers value stream mapping (VSM of company including material and information flow.  VSM shows the map of wasting activities in production line. The result of this research is details of activities, that value-adding activity in average 50.30%, non value-adding activity in average 21.83%, and necessary non value-adding activity in average 26.36 %. FMEA shows that the biggest value of RPN is activity that related to jig. Better jig management need to do to reduce waste. Keywords : fishbone diagram, FMEA, lean manufacturing, value stream mapping

  12. STUDY OF THE VIBRATION LEVEL IN CASE OF MANUFACTURING ON A CNC MACHINE-TOOL

    Directory of Open Access Journals (Sweden)

    Ioan Călin ROȘCA

    2015-12-01

    Full Text Available The paper presents the results of an experimental research performed on a CNC machine tool type ISEL-GFV considering the vibration level developed during the manufacturing of different pieces of particleboard at six processing regimes. There were recorded signals on both time and frequency domains on the three main directions. Based on recorded data there are presented the main conclusions referring to the level of vibrations and the frequencies associated to the highest levels.

  13. Cultural differences and board gender diversity

    OpenAIRE

    Carrasco , Amélia; Francoeur , Claude; Réal , Isabelle; Laffarga , Joaquina; Ruiz-Barbadillo , Emiliano

    2012-01-01

    International audience; As evidence of the continuing interest raised by "board gender diversity", major studies (Catalyst, 2008; World Economic Forum, 2010; European Board Diversity Analysis, 2010) were recently carried out and have all led to reports confirming the imbalance of women on boards and the need to address this issue. Moreover, our analysis of these reports indicates that the low proportion of women observed on corporate boards varies across countries, which raises the question a...

  14. A randomised controlled study to evaluate the effectiveness of targeted occupational health and safety consultation or inspection in Ontario manufacturing workplaces.

    Science.gov (United States)

    Hogg-Johnson, Sheilah; Robson, Lynda; Cole, Donald C; Amick, Benjamin C; Tompa, Emile; Smith, Peter M; van Eerd, Dwayne; Mustard, Cameron

    2012-12-01

    From 2004 to 2008, the prevention system in Ontario, Canada ran the High Risk Firm Initiative, an injury-experience based targeted consultation or inspection programme. Our objective was to establish whether prevention system targeting of firms was effective in improving injury outcomes. Randomised controlled parallel groups. Population included all manufacturing firms registered with the Ontario Workplace Safety & Insurance Board in 2005. Firms ranked between the 2nd and 10th percentile on a composite measure of occupational health and safety performance were randomised to three study arms in 2006: targeted for Health & Safety Association (HSA) consultation, targeted for Ministry of Labour (MOL) inspection, or services as usual. Data included firm characteristics (sector, size, years in business, region, branches), work injury claims 2002-2008 and measures of consulting and inspecting activity. Negative binomial generalised estimating equations modelled claim and disability day rates by study arm and year, controlling for firm characteristics. Among 2153 firms, firm characteristics and 2002-2005 rates of work injury claims and disability days were similar across arms. Firm outcomes were significantly different from year to year, but study arm by year interactions were insignificant indicating similar trends for all three study arms. 83% of HSA targeted firms were contacted and 63% engaged while 75% of MOL targeted firms were inspected with orders written in 56%. Consultation and enforcement programmes as implemented were not sufficient to reduce work injury outcomes over 21 month follow-up. Lack of benefit could be due to non-specific firm selection methods, limited firm participation in interventions, low intervention intensity or insensitivity of available outcomes.

  15. Extended FMEA for Sustainable Manufacturing: An Empirical Study in the Non-Woven Fabrics Industry

    Directory of Open Access Journals (Sweden)

    Thanh-Lam Nguyen

    2016-09-01

    Full Text Available Failure modes and effects analysis ( F M E A substantially facilitates the efforts of industrial manufacturers in prioritizing failures that require corrective actions to continuously improve product quality. However, the conventional approach fails to provide satisfactory explanation of the aggregate effects of a failure from different perspectives such as technical severity, economic severity, and production capacity in some practical applications. To fulfill the existing gap in the F M E A literature, this paper proposes an extension by considering associated quality cost and the capability of failure detection system as additional determinants to signify the priority level for each failure mode. The quality cost and capacity are considered as key factors for sustainable survival and development of an industrial manufacturer in the fierce competition market these days. The performance of the extended scheme was tested in an empirical case at a non-woven fabrics manufacturer. Analytical results indicate that the proposed approach outperforms the traditional one and remarkably reduces the percentage of defective fabrics from about 2.41% before the trial period to 1.13%,thus significantly reducing wastes and increasing operation efficiency, thereby providing valuable advantages to improve organizational competition power for their sustainable growth.

  16. Payments by US pharmaceutical and medical device manufacturers to US medical journal editors: retrospective observational study.

    Science.gov (United States)

    Liu, Jessica J; Bell, Chaim M; Matelski, John J; Detsky, Allan S; Cram, Peter

    2017-10-26

    Objective  To estimate financial payments from industry to US journal editors. Design  Retrospective observational study. Setting  52 influential (high impact factor for their specialty) US medical journals from 26 specialties and US Open Payments database, 2014. Participants  713 editors at the associate level and above identified from each journal's online masthead. Main outcome measures  All general payments (eg, personal income) and research related payments from pharmaceutical and medical device manufacturers to eligible physicians in 2014. Percentages of editors receiving payments and the magnitude of such payments were compared across journals and by specialty. Journal websites were also reviewed to determine if conflict of interest policies for editors were readily accessible. Results  Of 713 eligible editors, 361 (50.6%) received some (>$0) general payments in 2014, and 139 (19.5%) received research payments. The median general payment was $11 (£8; €9) (interquartile range $0-2923) and the median research payment was $0 ($0-0). The mean general payment was $28 136 (SD $415 045), and the mean research payment was $37 963 (SD $175 239). The highest median general payments were received by journal editors from endocrinology ($7207, $0-85 816), cardiology ($2664, $0-12 912), gastroenterology ($696, $0-20 002), rheumatology ($515, $0-14 280), and urology ($480, $90-669). For high impact general medicine journals, median payments were $0 ($0-14). A review of the 52 journal websites revealed that editor conflict of interest policies were readily accessible (ie, within five minutes) for 17/52 (32.7%) of journals. Conclusions  Industry payments to journal editors are common and often large, particularly for certain subspecialties. Journals should consider the potential impact of such payments on public trust in published research. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a

  17. Improving Project Manufacturing Coordination

    Directory of Open Access Journals (Sweden)

    Korpivaara Ville

    2014-09-01

    Full Text Available The objective of this research is to develop firms’ project manufacturing coordination. The development will be made by centralizing the manufacturing information flows in one system. To be able to centralize information, a deep user need assessment is required. After user needs have been identified, the existing system will be developed to match these needs. The theoretical background is achieved through exploring the literature of project manufacturing, development project success factors and different frameworks and tools for development project execution. The focus of this research is rather in customer need assessment than in system’s technical expertise. To ensure the deep understanding of customer needs this study is executed by action research method. As a result of this research the information system for project manufacturing coordination was developed to respond revealed needs of the stakeholders. The new system improves the quality of the manufacturing information, eliminates waste in manufacturing coordination processes and offers a better visibility to the project manufacturing. Hence it provides a solid base for the further development of project manufacturing.

  18. Applying the institutional review board data repository approach to manage ethical considerations in evaluating and studying medical education.

    Science.gov (United States)

    Thayer, Erin K; Rathkey, Daniel; Miller, Marissa Fuqua; Palmer, Ryan; Mejicano, George C; Pusic, Martin; Kalet, Adina; Gillespie, Colleen; Carney, Patricia A

    2016-01-01

    Medical educators and educational researchers continue to improve their processes for managing medical student and program evaluation data using sound ethical principles. This is becoming even more important as curricular innovations are occurring across undergraduate and graduate medical education. Dissemination of findings from this work is critical, and peer-reviewed journals often require an institutional review board (IRB) determination. IRB data repositories, originally designed for the longitudinal study of biological specimens, can be applied to medical education research. The benefits of such an approach include obtaining expedited review for multiple related studies within a single IRB application and allowing for more flexibility when conducting complex longitudinal studies involving large datasets from multiple data sources and/or institutions. In this paper, we inform educators and educational researchers on our analysis of the use of the IRB data repository approach to manage ethical considerations as part of best practices for amassing, pooling, and sharing data for educational research, evaluation, and improvement purposes. Fostering multi-institutional studies while following sound ethical principles in the study of medical education is needed, and the IRB data repository approach has many benefits, especially for longitudinal assessment of complex multi-site data.

  19. Study of energy consumption in agriculture. An project commissioned by the Board of Agriculture; Kartlaeggning av jordbrukets energianvaendning. Ett projekt utfoert paa uppdrag av Jordbruksverket

    Energy Technology Data Exchange (ETDEWEB)

    Baky, Andras; Sundberg, Martin; Brown, Nils

    2010-07-01

    JTI has, on behalf of the Swedish Board of Agriculture, conducted a study on energy consumption in agriculture. The study also proposes measures to reduce the energy use and includes an outlook towards the future of the Swedish agricultural development. The study is limited to the use of fuel and electricity used for field-work and in farm work and energy for heating. Energy for heating of residential buildings and drying is not included in the mandate. The Swedish agricultural uses about 3.11 TWh of energy in the form of gas, electricity, oil and biofuels, not including drying and greenhouses. In addition, approx. 3.64 TWh of energy are consumed indirectly, 2.31 TWh of which from fertilizer use. The Swedish agriculture is moving towards fewer but larger farms. The number of enterprises has decreased from 26000 in year 2005 to 21700 in 2009. Increased energy production, both as a supplier of raw materials and recipients of products means that energy use is affected. In the future energy use will probably be affected by an increase in farm-based production of energy, primarily biogas for cogeneration. The variations in estimates of energy use are large, and agriculture's total energy use can vary between 1.64 TWh to 4.04 TWh, depending on the data sets used. Since the use of diesel dominate over the use of electricity, it is interesting to focus on reducing diesel consumption. Field work and harvest are the activities where the largest consumption of diesel is made. Measures can be taken are primarily farmers are running in a more energy efficient way. Other measures are: Reduced tillage; Replacing transport with tractor-trailer by truck; Transport of manure with other equipment than their own spreader; Livestock use of energy is primarily electricity for lighting, ventilation, distribution, cleaning, feeding, etc. The largest variations in energy use are associated with animal husbandry. It is difficult to generally comment on actions in order to reduce energy

  20. Prevalence and drivers of human scabies among children and adolescents living and studying in Cameroonian boarding schools.

    Science.gov (United States)

    Kouotou, Emmanuel Armand; Nansseu, Jobert Richie N; Kouawa, Michèle K; Zoung-Kanyi Bissek, Anne-Cécile

    2016-07-19

    The dire lack of information concerning the epidemiology of human scabies in Cameroon, especially in school milieus brought us to undertake the present study which aimed to determine the prevalence and associated factors of scabies in Cameroonian boarding schools. A cross-sectional study was conducted from February to March 2015 in four boarding schools in Yaoundé and Buea (Cameroon). Participants were students currently residing in one of the study sites, volunteering to participate in the study and whose parents or guardians had given their consent in this respect. The diagnosis was based on clinical assessment independently performed by two dermatologists. A total of 1,902 students were recruited (50.5 % boys), with a mean age of 14.3 ± 2.5 years. Overall, 338 participants (17.8 %) were diagnosed with scabies. Age ≤ 15 years, male sex, number of students in the school > 500, no access to the school infirmary, sleeping with others, sharing beddings, clothes or toilet stuffs, pruritus in the close entourage and complaining of pruritus were significantly associated with the presence of mites in univariable logistic regression analyses. On the other hand, at least two baths per day, usage of soap for baths and finger nails always cut short appeared as protective factors. After multivariable analysis, male sex (adjusted OR (aOR) 2.06, 95 % CI: 1.40-3.01, P < 0.0001), first cycle level of education (aOR 1.67, 95 % CI: 1.02-2.71, P = 0.040), number of students per dormitory ≤ 10 (aOR 6.99, 95 % CI: 3.34-14.71, P < 0.0001), no access to the school infirmary (aOR 1.62, 95 % CI: 1.12-2.32, P = 0.009) and complaining of pruritus (aOR 93.37, 95 % CI: 60.04-145.19, P < 0.0001) were the independent factors associated with scabies. The prevalence of scabies was 17.8 %. The male sex, first cycle level of education, a number of students per dormitory ≤ 10, no access to the school infirmary and complaining of pruritus were

  1. Applying advanced analytics to guide emergency department operational decisions: A proof-of-concept study examining the effects of boarding.

    Science.gov (United States)

    Andrew Taylor, R; Venkatesh, Arjun; Parwani, Vivek; Chekijian, Sharon; Shapiro, Marc; Oh, Andrew; Harriman, David; Tarabar, Asim; Ulrich, Andrew

    2018-01-04

    Emergency Department (ED) leaders are increasingly confronted with large amounts of data with the potential to inform and guide operational decisions. Routine use of advanced analytic methods may provide additional insights. To examine the practical application of available advanced analytic methods to guide operational decision making around patient boarding. Retrospective analysis of the effect of boarding on ED operational metrics from a single site between 1/2015 and 1/2017. Times series were visualized through decompositional techniques accounting for seasonal trends, to determine the effect of boarding on ED performance metrics and to determine the impact of boarding "shocks" to the system on operational metrics over several days. There were 226,461 visits with the mean (IQR) number of visits per day was 273 (258-291). Decomposition of the boarding count time series illustrated an upward trend in the last 2-3 quarters as well as clear seasonal components. All performance metrics were significantly impacted (pstudy regarding the use of advanced analytics in daily ED operations, time series analysis provided multiple useful insights into boarding and its impact on performance metrics. Copyright © 2018. Published by Elsevier Inc.

  2. A TOTAL MANUFACTURING SOLUTIONS TECHNIQUE TO SELECT APPROPRIATE IMPROVEMENT STRATEGY: CASE STUDY OF A FOOTWEAR FACTORY

    Directory of Open Access Journals (Sweden)

    Gezahegn Tesfaye

    2014-09-01

    Full Text Available The Government of Ethiopia is promoting the manufacturing sector to join the global market in a large scale. Due to its comparative advantages, the Ethiopian leather and leather products industry have been given due attention. To fully utilize such advantages, the country shifted its export items from hides/skins to footwear products. Nevertheless, the performance of the leather sector in general and footwear sub-sector in particular is far below the desired standards. The improvement strategies applied hitherto were mainly to tackle a small portion of their total problems. If the Ethiopian footwear companies have to become globally competitive, their entire business spectrum has to be assessed and appropriate improvement strategies must be selected. In this research, we used a Total manufacturing solutions (TMS technique to identify areas of improvement and improvement strategy of one of Ethiopian footwear companies. For this purpose, we conducted two surveys using structured questionnaire. The first survey was to test the TMS technique against the context of footwear industry. The result proved that the original TMS model can be used to measure the performance of footwear companies. The second survey was done to identify company's total problems, map its current position and select appropriate improvement strategy. The result revealed that the company has company-wide problems and its current position is a plodder. For plodders which have company-wide problems, the improvement strategy must include aggressive application of BPR; and the implementation of best practices to develop workers skills that encourages networking and promotion, a market-led manufacturing strategy, employee involvement and team work cultures. According to the findings of this research, we suggested that a BPR technique followed by a continuous improvement programme could be an appropriate improvement strategy for this company. The company requires long-term improvement

  3. Concerning of Defects in Design and Manufacture of the Products. Case Study: Redesign of the Citrus Juicer

    Directory of Open Access Journals (Sweden)

    Bogdan BUCUR

    2015-12-01

    Full Text Available Industrial products market is marked by a series of mistakes resulting from their design and manufacture. These defects are due to a superficial conceptual analysis, with emphasis on manufacturing to lower cost price, without a few aspects like: functional, ergonomic, aesthetic and cultural in product development. This analysis is important because it combines all these aspects and which aim the final solution of the optimized product. This paper proposes a method of study that identifies those aspects of the analysis of a product on the market that is a citrus juicer. Redesigning the product is made using AutoCAD and Inventor Autodesk design environment. The method proposed in this paper it will be applied to any industrial product, respecting their particularities.

  4. Case study of manufactured gas plant site remediations using thermal desorption

    Energy Technology Data Exchange (ETDEWEB)

    Vogel, R.G.; Hayes, T.; Slimon, K.F.; Unites, D. [Southern California Gas Company, Los Angeles, CA (United States)

    1995-12-31

    Southern California Gas Company (SoCal Gas) has recently remediated five of its former manufactured gas plant (MGP) sites using on-site and off-site thermal desorption. This technology has proven effective in the treatment of PAH-contaminated soils with widely variable concentrations. At two of the five sites, MGP-contaminated materials were excavated and thermally treated on site. At the other sites, MGP-contaminated materials were excavated and transported directly to an off-site thermal desorber. Much of the production was of oil-gas, giving lampblack contamination, but some coal tar was also present.

  5. Texas Manufacturing Technology Center feasibility study for the Inland Regional Industrial Technology Institute

    International Nuclear Information System (INIS)

    1994-01-01

    This document presents the Texas Manufacturing Technology Center (TMTC) Business Plan to convert the Central Facility of the Superconducting Super Collider project to alternate uses. The plan is divided into six sections: (1) Executive Summary, (2) Market and Benefit Analysis, (3) Marketing Strategy, (4) Services, (5) Organization and Operations Overview, and (6) Financial Plan. Each area is supported by separate documents that address individual opportunities and challenges associated with transitioning the facility, and its asset base to new uses for benefit of the locality, state, region and nation

  6. Detailed mechanical design and manufacturing study for the ITER reference breeding blanket

    International Nuclear Information System (INIS)

    Zacchia, F.; Daenner, W.; Stefanis, L. de; Ferrari, M.; Gerber, A.; Mustoe, J.

    1998-01-01

    This papers relates on the detailed mechanical design, manufacturing feasibility and assembly analysis of a water-cooled solid breeding blanket concept, selected as the ITER reference design. This breeding blanket design is characterised by: i) pressurised water flowing inside flat steel panels for cooling of the internals; each panel is welded along its contour onto the first wall structure and to the rear shield plate after closure of the module (last assembly step). ii) Beryllium (neutronic multiplier) in the form of micro-spheres filling the volume between parallel flat coolant panels. iii) Breeder pebbles enclosed in rods, which form bundles and are themselves embedded inside the Beryllium micro-spheres. (authors)

  7. Implementation Of 5S Quality Tool In Manufacturing Company A Case Study

    Directory of Open Access Journals (Sweden)

    Vibhor Kakkar

    2015-02-01

    Full Text Available Abstract 5S system is a technique which maintains the quality of working conditions in the organization. Amongst various available Lean resources 5S is a powerful technique that can bolster objectives of the organization to get continuous improvement in performance and productivity. This paper presents the implementation of 5S in a manufacturing company amp 5S rating system was used to audit all changes in the company which enhanced the efficiency of the workers amp ultimately the productivity of the company is enhanced to 91 .

  8. Potential Co-Generation of Electrical Energy from Mill Waste: A Case Study of the Malaysian Furniture Manufacturing Industry

    Directory of Open Access Journals (Sweden)

    Jegatheswaran Ratnasingam

    2016-04-01

    Full Text Available Furniture manufacturing in Malaysia is an established industry driven primarily by the availability of raw materials and labor. However, the industry suffers from the low-recovery rate of its materials, as it produces a substantial amount of waste during the manufacturing process. Although smaller waste fragments, or off-cuts, are recovered for other purposes, the splinters, shavings, and coarse dust have little economic value and are often discarded. Because wood is a well-established source of bioenergy, this study investigated the potential use of mill waste from the furniture-manufacturing industry for electrical energy generation. Waste from the rubberwood, bamboo, and rattan furniture industries was evaluated for its potential electrical energy generation, and the amount was compared with the electrical energy that was consumed by the furniture industry. The study also compared the emission of greenhouse gases from the combustion of these waste materials against fossil fuels used to generate electricity to assess its potential in terms of the environmental benefits. In conclusion, such mill waste could be utilized as substitute for fossil fuel to generate energy in the furniture industry.

  9. Accuracy Evaluation of 19 Blood Glucose Monitoring Systems Manufactured in the Asia-Pacific Region: A Multicenter Study.

    Science.gov (United States)

    Yu-Fei, Wang; Wei-Ping, Jia; Ming-Hsun, Wu; Miao-O, Chien; Ming-Chang, Hsieh; Chi-Pin, Wang; Ming-Shih, Lee

    2017-09-01

    System accuracy of current blood glucose monitors (BGMs) in the market has already been evaluated extensively, yet mostly focused on European and North American manufacturers. Data on BGMs manufactured in the Asia-Pacific region remain to be established. In this study, we sought to assess the accuracy performance of 19 BGMs manufactured in the Asia-pacific region. A total of 19 BGMs were obtained from local pharmacies in China. The study was conducted at three hospitals located in the Asia-Pacific region. Measurement results of each system were compared with results of the reference instrument (YSI 2300 PLUS Glucose Analyzer), and accuracy evaluation was performed in accordance to the ISO 15197:2003 and updated 2015 guidelines. Radar plots, which is a new method, are described herein to visualize the analytical performance of the 19 BGMs evaluated. Consensus error grid is a tool for evaluating the clinical significance of the results. The 19 BGMs resulted in a satisfaction rate between 83.5% and 100.0% within ISO 15197:2003 error limits, and between 71.3% and 100.0% within EN ISO 15197:2015 (ISO 15197:2013) error limits. Of the 19 BGMs evaluated, 12 met the minimal accuracy requirement of the ISO 15197:2003 standard, whereas only 4 met the tighter EN ISO 15197:2015 (ISO 15197:2013) requirements. Accuracy evaluation of BGMs should be performed regularly to maximize patient safety.

  10. Effects of a giant exercising board game intervention on ambulatory physical activity among nursing home residents: a preliminary study.

    Science.gov (United States)

    Mouton, Alexandre; Gillet, Nicolas; Mouton, Flore; Van Kann, Dave; Bruyère, Olivier; Cloes, Marc; Buckinx, Fanny

    2017-01-01

    This study examined the effects of a giant (4×3 m) exercising board game intervention on ambulatory physical activity (PA) and a broader array of physical and psychological outcomes among nursing home residents. A quasi-experimental longitudinal study was carried out in two comparable nursing homes. Ten participants (aged 82.5±6.3 and comprising 6 women) meeting the inclusion criteria took part in the 1-month intervention in one nursing home, whereas 11 participants (aged 89.9±3.1 with 8 women) were assigned to the control group in the other nursing home. The giant exercising board game required participants to per-form strength, flexibility, balance and endurance activities. The assistance provided by an exercising specialist decreased gradually during the intervention in an autonomy-oriented approach based on the self-determination theory. The following were assessed at baseline, after the intervention and after a follow-up period of 3 months: PA (steps/day and energy expenditure/day with ActiGraph), cognitive status (mini mental state examination), quality of life (EuroQol 5-dimensions), motivation for PA (Behavioral Regulation in Exercise Questionnaire-2), gait and balance (Tinetti and Short Physical Performance Battery), functional mobility (timed up and go), and the muscular isometric strength of the lower limb muscles. In the intervention group, PA increased from 2,921 steps/day at baseline to 3,358 steps/day after the intervention (+14.9%, P =0.04) and 4,083 steps/day (+39.8%, P =0.03) after 3 months. Energy expenditure/day also increased after the intervention (+110 kcal/day, +6.3%, P =0.01) and after 3 months (+219 kcal/day, +12.3%, P =0.02). Quality of life ( P <0.05), balance and gait ( P <0.05), and strength of the ankle ( P <0.05) were also improved after 3 months. Such improvements were not observed in the control group. The preliminary results are promising but further investigation is required to confirm and evaluate the long-term effectiveness

  11. The Use of Mood Boards to Study Housing Needs of Nursing Home Residents with Dementia

    NARCIS (Netherlands)

    Joost van Hoof; M.R. Sprong; B.M. Janssen; H.R. Marston

    2015-01-01

    Nursing home residents with dementia face challenges in adapting to a new living environment and feeling at home. Due to communicative limitations, people with dementia after often left out of design processes. The aim of this study is to investigate the housing needs in relation to the interior

  12. Belonging to "Chinatown": A Study of Asian Boarders in a West Australian Private Boarding School

    Science.gov (United States)

    Yeo, Wee Loon

    2010-01-01

    The invaluable use of ethnography in researching educational settings has been demonstrated through many studies and furthered by many passionate researchers. One of such leading lights is Geoffrey Walford. In this paper, Walford's discussion of groups in two public schools, as depicted in his book "Life in public schools", serves as a…

  13. 40 CFR 26.1603 - Operation of the Human Studies Review Board.

    Science.gov (United States)

    2010-07-01

    ... appropriate for the scientific and ethical review of human research, including research ethics, biostatistics... scientific and ethical aspects of research proposals and reports of completed research with human subjects... 40 Protection of Environment 1 2010-07-01 2010-07-01 false Operation of the Human Studies Review...

  14. How body balance influences political party evaluations: A wii balance board study

    NARCIS (Netherlands)

    K. Dijkstra (Katinka); A. Eerland (Anita); J.M. Zijlmans (Mark); L.S. Post (Lysanne)

    2012-01-01

    textabstractEmbodied cognition research has shown how actions or body positions may affect cognitive processes, such as autobiographical memory retrieval or judgments. The present study examined the role of body balance (to the left or the right) in participants on their attributions to political

  15. 75 FR 34988 - Federal Advisory Committee; Defense Science Board 2010 Summer Study on Enhancing Adaptability of...

    Science.gov (United States)

    2010-06-21

    ... 2010 Summer Study on Enhancing Adaptability of Our Military Forces AGENCY: Department of Defense (DoD... Enhancing Adaptability of our Military Forces will meet in closed session from August 2-13, 2010, in... establish defining metrics and identifying fundamental attributes of an architecture to enhance adaptability...

  16. LEAN Manufacturing

    DEFF Research Database (Denmark)

    Bilberg, Arne

    . The mission with the strategy is to obtain competitive production in Denmark and in Western Europe based on the right combination of manufacturing principles, motivated and trained employees, level of automation, and cooperation with suppliers and customers worldwide. The strategy has resulted in technical...

  17. Texas Affordable Baccalaureate Program: A Collaboration between the Texas Higher Education Coordinating Board, South Texas College, and Texas A&M University-Commerce. CBE Case Study

    Science.gov (United States)

    Klein-Collins, Rebecca; Glancey, Kathleen

    2015-01-01

    This case study is part of a series on newer competency-based degree programs that have been emerging in recent years. In January 2014, the Texas Higher Education Coordinating Board (THECB), South Texas College (STC), and Texas A&M University-Commerce (A&M Commerce) launched the Texas Affordable Baccalaureate Program, the state's first…

  18. Innovation That Sticks Case Study Report: Ottawa Catholic School Board. Leading and Learning for Innovation, A Framework for District-Wide Change

    Science.gov (United States)

    Canadian Education Association, 2016

    2016-01-01

    A Canadian Education Association (CEA) Selection Jury chose the Ottawa Catholic School Board (OCSB) out of 35 School District applicants from across Canada to participate in the 2015 "Innovation that Sticks" Case Study Program. From September to December 2015--through an Appreciative Inquiry interview process--the CEA researched how the…

  19. Study of values and interpersonal perception in cosmonauts on board of international space station

    Science.gov (United States)

    Vinokhodova, A. G.; Gushin, V. I.

    2014-01-01

    The increased heterogeneity of International Space Station (ISS) crews' composition (in terms of nationality, profession and gender) together with stressful situations, due to space flight, can have a significant impact on group interaction and cohesion, as well as on communications with Mission Control Center (MCC) and the success of the mission as a whole. Culturally related differences in values, goals, and behavioral norms could influence mutual perception and, thus, cohesive group formation. The purpose of onboard "Interaction-Attitudes" experiment is to study the patterns of small group (space crew) behavior in extended space flight. Onboard studies were performed in the course of ISS Missions 19-30 with participation of twelve Russian crewmembers. Experimental schedule included 3 phases: preflight training and Baseline Data Collection; inflight activities once in two weeks; post-flight measurement. We used Personal Self-Perception and Attitudes (PSPA) software for analyzing subjects' attitudes toward social environment (crewmembers and MCC). It is based on the semantic differential and the repertory grid technique. To study the content of interpersonal perception we used content-analysis with participation of the experts, independently attributing each construct to the 17 semantic categories, which were described in our previous study. The data obtained demonstrated that the system of values and personal attitudes in the majority of participated cosmonauts remained mostly stable under stress-factors of extended space flight. Content-analysis of the important criteria elaborated by the subjects for evaluation of their social environment, showed that the most valuable personal traits for cosmonauts were those that provided the successful fulfillment of professional activity (motivation, intellectual level, knowledge, and self-discipline) and good social relationships (sociability, friendship, and tolerance), as well. Post-flight study of changes in perceptions

  20. A CRITICAL STUDY AND COMPARISON OF MANUFACTURING SIMULATION SOFTWARES USING ANALYTIC HIERARCHY PROCESS

    Directory of Open Access Journals (Sweden)

    ASHU GUPTA

    2010-03-01

    Full Text Available In a period of continuous change in global business environment, organizations, large and small, are finding it increasingly difficult to deal with, and adjust to the demands for such change. Simulation is a powerful tool for allowing designers imagines new systems and enabling them to both quantify and observe behavior. Currently the market offers a variety of simulation software packages. Some are less expensive than others. Some are generic and can be used in a wide variety of application areas while others are more specific. Some have powerful features for modeling while others provide only basic features. Modeling approaches and strategies are different for different packages. Companies are seeking advice about the desirable features of software for manufacturing simulation, depending on the purpose of its use. Because of this, the importance of an adequate approach to simulation software evaluation and comparison is apparent. This paper presents a critical evaluation of four widely used manufacturing simulators: NX-IDEAS, Star-CD, Micro Saint Sharp and ProModel. Following a review of research into simulation software evaluation, an evaluation and comparison of the above simulators is performed. This paper illustrates and assesses the role the Analytic Hierarchy Process (AHP played in simulation software evaluation and selection. The main purpose of this evaluation and comparison is to discover the suitability of certain types of simulators for particular purposes.

  1. Methodology for designing and manufacturing complex biologically inspired soft robotic fluidic actuators: prosthetic hand case study.

    Science.gov (United States)

    Thompson-Bean, E; Das, R; McDaid, A

    2016-10-31

    We present a novel methodology for the design and manufacture of complex biologically inspired soft robotic fluidic actuators. The methodology is applied to the design and manufacture of a prosthetic for the hand. Real human hands are scanned to produce a 3D model of a finger, and pneumatic networks are implemented within it to produce a biomimetic bending motion. The finger is then partitioned into material sections, and a genetic algorithm based optimization, using finite element analysis, is employed to discover the optimal material for each section. This is based on two biomimetic performance criteria. Two sets of optimizations using two material sets are performed. Promising optimized material arrangements are fabricated using two techniques to validate the optimization routine, and the fabricated and simulated results are compared. We find that the optimization is successful in producing biomimetic soft robotic fingers and that fabrication of the fingers is possible. Limitations and paths for development are discussed. This methodology can be applied for other fluidic soft robotic devices.

  2. Load bearing and stiffness tailored NiTi implants produced by additive manufacturing: a simulation study

    Science.gov (United States)

    Rahmanian, Rasool; Shayesteh Moghaddam, Narges; Haberland, Christoph; Dean, David; Miller, Michael; Elahinia, Mohammad

    2014-03-01

    Common metals for stable long-term implants (e.g. stainless steel, Titanium and Titanium alloys) are much stiffer than spongy cancellous and even stiffer than cortical bone. When bone and implant are loaded this stiffness mismatch results in stress shielding and as a consequence, degradation of surrounding bony structure can lead to disassociation of the implant. Due to its lower stiffness and high reversible deformability, which is associated with the superelastic behavior, NiTi is an attractive biomaterial for load bearing implants. However, the stiffness of austenitic Nitinol is closer to that of bone but still too high. Additive manufacturing provides, in addition to the fabrication of patient specific implants, the ability to solve the stiffness mismatch by adding engineered porosity to the implant. This in turn allows for the design of different stiffness profiles in one implant tailored to the physiological load conditions. This work covers a fundamental approach to bring this vision to reality. At first modeling of the mechanical behavior of different scaffold designs are presented as a proof of concept of stiffness tailoring. Based on these results different Nitinol scaffolds can be produced by additive manufacturing.

  3. Self-audit of lockout/tagout in manufacturing workplaces: A pilot study.

    Science.gov (United States)

    Yamin, Samuel C; Parker, David L; Xi, Min; Stanley, Rodney

    2017-05-01

    Occupational health and safety (OHS) self-auditing is a common practice in industrial workplaces. However, few audit instruments have been tested for inter-rater reliability and accuracy. A lockout/tagout (LOTO) self-audit checklist was developed for use in manufacturing enterprises. It was tested for inter-rater reliability and accuracy using responses of business self-auditors and external auditors. Inter-rater reliability at ten businesses was excellent (κ = 0.84). Business self-auditors had high (100%) accuracy in identifying elements of LOTO practice that were present as well those that were absent (81% accuracy). Reliability and accuracy increased further when problematic checklist questions were removed from the analysis. Results indicate that the LOTO self-audit checklist would be useful in manufacturing firms' efforts to assess and improve their LOTO programs. In addition, a reliable self-audit instrument removes the need for external auditors to visit worksites, thereby expanding capacity for outreach and intervention while minimizing costs. © 2017 Wiley Periodicals, Inc.

  4. Exploring manufacturing solutions for SMEs

    DEFF Research Database (Denmark)

    Radziwon, Agnieszka; Blichfeldt, Henrik; Bilberg, Arne

    This exploratory study provides an overview over current state of manufacturing solutions in small and medium sized enterprises (SMEs) in region of Southern Denmark. Building on manufacturing paradigms, this paper reveals relevant aspects for the development and implementation of improving SMEs...... of manufacturing solutions, which are required to increase their competitiveness and assure sustainable growth....

  5. An agenda for board research

    Directory of Open Access Journals (Sweden)

    Sandra Guerra

    2008-01-01

    Full Text Available Scholarly investigations on the board of directors, although intense from the mid-1990s onward, did not lead to entirely convincing results. This study proposes discussion on building a multidisciplinary and integrated theoretical framework able to capture the complexity and distinctive dimensions of the board as a group decision-making process. This is achieved through an essay developed from analytical and descriptive review of the literature. A synthesis on board research is presented, aiming to understand theoretical models lenses used to study corporate governance issues. The strengths and weaknesses of these models are pointed out, and their influence on board investigation is observed. This essay concludes by proposing a research agenda that considers the addition of psychological and sociological approaches to economic models of the analysis of group decision-making

  6. Studies to overcome the manufacturing problems in blast furnace tap hole clay of Integrated Steel Plants: Experimental approach

    Science.gov (United States)

    Siva kumar, R.; Mohammed, Raffi; Srinivasa Rao, K.

    2018-03-01

    Integrated Steel Plants commonly uses Blast Furnace route for iron production which accounts for over 60 % of the world iron output. Blast Furnace runs for ten to twenty years without repairing hearth walls and Tap Hole (TH). Tap hole is an outlet for hot metal produced in a Blast Furnace and run from the shell of the furnace into the interior allowing access to the molten material. Tapping is the term used for drilling a hole through the tap hole which allows the molten iron and slag to flow out. In Iron making process, removal of liquid iron from furnace and sending it for steel making is known as cast house practice. For tapping liquid iron and operating the tap hole requires a special type of clay. Tap hole clay (THC) used to stop the flow of liquid iron and slag from the blast furnace. Present work deals with the study on manufacturing of THC at Visakhapatnam Steel Plant and problems related to manufacturing. Experiments were conducted to solve the identified problems and results are furnished in detail. The findings can improve the manufacturing process and improve the productivity of tap hole clay.

  7. Additive technology of soluble mold tooling for embedded devices in composite structures: A study on manufactured tolerances

    Science.gov (United States)

    Roy, Madhuparna

    Composite textiles have found widespread use and advantages in various industries and applications. The constant demand for high quality products and services requires companies to minimize their manufacturing costs, and delivery time in order to compete in general and niche marketplaces. Advanced manufacturing methods aim to provide economical methods of mold production. Creation of molding and tooling options for advanced composites encompasses a large portion of the fabrication time, making it a costly process and restraining factor. This research discusses a preliminary investigation into the use of soluble polymer compounds and additive manufacturing to fabricate soluble molds. These molds suffer from dimensional errors due to several factors, which have also been characterized. The basic soluble mold of a composite is 3D printed to meet the desired dimensions and geometry of holistic structures or spliced components. The time taken to dissolve the mold depends on the rate of agitation of the solvent. This process is steered towards enabling the implantation of optoelectronic devices within the composite to provide sensing capability for structural health monitoring. The shape deviation of the 3D printed mold is also studied and compared to its original dimensions to optimize the dimensional quality to produce dimensionally accurate parts. Mechanical tests were performed on compact tension (CT) resin samples prepared from these 3D printed molds and revealed crack propagation towards an embedded intact optical fiber.

  8. Manufacturing process of ion source cone for SF cyclotron of Institute of Nuclear Study, University of Tokyo

    International Nuclear Information System (INIS)

    1982-01-01

    The manufacturing process of the complicated structural cone elements for the low energy ion source of the SF cyclotron of Institute of Nuclear Study, University of Tokyo, is reported. The drawing for manufacture is shown. This cone has a cylindrical part with 16 mm diameter and 60 mm length, a conical part with 50 mm large diameter and 62 deg conical angle, and many holes and notches, and is made of copper. The manufacturing process of the cone elements is as follows: providing the material by sawing a bar, cutting both end surfaces and drilling centering holes on a lathe, machining multiple outer surface utilizing an index on a milling machine, marking work on end and side surfaces, drilling centering holes for gas passage, water passage and bolt holes utilizing a circular table on a milling machine, spot facing and drilling centering holes for oblique gas and water passages on the outer surface utilizing an angle gauge on a milling machine, drilling gas and water passages on a drilling machine, brazing of plugs, machining of inner and outer surfaces on a lathe, machining of outer surface on a milling machine, finishing by hand work and so on. These process steps are shown in photographs. (Nakai, Y.)

  9. Manufacture of disposal canisters

    International Nuclear Information System (INIS)

    Nolvi, L.

    2009-12-01

    The report summarizes the development work carried out in the manufacturing of disposal canister components, and present status, in readiness for manufacturing, of the components for use in assembly of spent nuclear fuel disposal canister. The disposal canister consist of two major components: the nodular graphite cast iron insert and overpack of oxygen-free copper. The manufacturing process for copper components begins with a cylindrical cast copper billet. Three different manufacturing processes i.e. pierce and draw, extrusion and forging are being developed, which produce a seamless copper tube or a tube with an integrated bottom. The pierce and draw process, Posiva's reference method, makes an integrated bottom possible and only the lid requires welding. Inserts for BWR-element are cast with 12 square channels and inserts for VVER 440-element with 12 round channels. Inserts for EPR-elements have four square channels. Casting of BWR insert type has been studied so far. Experience of casting inserts for PWR, which is similar to the EPR-type, has been got in co-operation with SKB. The report describes the processes being developed for manufacture of disposal canister components and some results of the manufacturing experiments are presented. Quality assurance and quality control in manufacture of canister component is described. (orig.)

  10. Green Manufacturing Fundamentals and Applications

    CERN Document Server

    2013-01-01

    Green Manufacturing: Fundamentals and Applications introduces the basic definitions and issues surrounding green manufacturing at the process, machine and system (including supply chain) levels. It also shows, by way of several examples from different industry sectors, the potential for substantial improvement and the paths to achieve the improvement. Additionally, this book discusses regulatory and government motivations for green manufacturing and outlines the path for making manufacturing more green as well as making production more sustainable. This book also: • Discusses new engineering approaches for manufacturing and provides a path from traditional manufacturing to green manufacturing • Addresses regulatory and economic issues surrounding green manufacturing • Details new supply chains that need to be in place before going green • Includes state-of-the-art case studies in the areas of automotive, semiconductor and medical areas as well as in the supply chain and packaging areas Green Manufactu...

  11. The study of a plasma jet injected by an on-board plasma thruster

    International Nuclear Information System (INIS)

    Grebnev, I.A.; Ivanov, G.V.; Khodnenko, V.P.

    1981-01-01

    The injection of a steady plasma jet into the ionosphere results in interactions which were studied in experiments conducted onboard two Meteor satellites in 1977-1979. The jet parameters at the propulsion system output were as follows: propulsive mass: Xe Xe (+) ion density at the nozzle section 3 x 10 to the 11th per cu cm plasma stream divergence: 20 degrees jet velocity: 10-12 km/cm ion energy: 130 eV electron temperature: 1 + 3 eV. A Bennett-type modified radio-frequency mass-spectrometer and a two-channel electromagnetic wave analyzer were used for the measurements. It was found that (1) the injected plasma jet propagation depends on the jet injection pitch angle (2) when the plasma jet was injected along the magnetic field, impactless jet spreading took place without considerable interaction with the ionospheric plasma (3) when the plasma jet was injected across the magnetic field, considerable interaction was observed between the plasma jet/ionospheric plasma and the earth's magnetic field and (4) electromagnetic fields were generated near the satellite by plasma jet interaction

  12. Preliminary Study on a Reduced Scaled Model Regarding the Air Diffusion inside a Crew Quarter on Board of the ISS

    Science.gov (United States)

    Sandu, Mihnea; Nastase, Ilinca; Bode, Florin; Croitoru, CristianaVerona; Tacutu, Laurentiu

    2018-02-01

    The paper focus on the air quality inside the Crew Quarters on board of the International Space Station. Several issues to improve were recorded by NASA and ESA and most important of them are the following: noise level reduction, CO2 accumulation reduction and dust accumulation reduction. The study in this paper is centred on a reduced scaled model used to provide simulations related to the air diffusion inside the CQ. It is obvious that a new ventilation system is required to achieve the three issues mentioned above, and the solutions obtained by means of numerical simulation need to be validated by experimental approach. First of all we have built a reduced scaled physical model to simulate the flow pattern inside the CQ and the equipment inside the CQ has been reproduced using a geometrical scale ratio. The flow pattern was considered isothermal and incompressible. The similarity criteria used was the Reynolds number to characterize the flow pattern and the length scale was set at value 1/4. Water has been used inside the model to simulate air. Velocity magnitude vectors have been obtained using PIV measurement techniques.

  13. Preliminary Study on a Reduced Scaled Model Regarding the Air Diffusion inside a Crew Quarter on Board of the ISS

    Directory of Open Access Journals (Sweden)

    Sandu Mihnea

    2018-01-01

    Full Text Available The paper focus on the air quality inside the Crew Quarters on board of the International Space Station. Several issues to improve were recorded by NASA and ESA and most important of them are the following: noise level reduction, CO2 accumulation reduction and dust accumulation reduction. The study in this paper is centred on a reduced scaled model used to provide simulations related to the air diffusion inside the CQ. It is obvious that a new ventilation system is required to achieve the three issues mentioned above, and the solutions obtained by means of numerical simulation need to be validated by experimental approach. First of all we have built a reduced scaled physical model to simulate the flow pattern inside the CQ and the equipment inside the CQ has been reproduced using a geometrical scale ratio. The flow pattern was considered isothermal and incompressible. The similarity criteria used was the Reynolds number to characterize the flow pattern and the length scale was set at value 1/4. Water has been used inside the model to simulate air. Velocity magnitude vectors have been obtained using PIV measurement techniques.

  14. Semiconductor Manufacturing equipment introduction

    International Nuclear Information System (INIS)

    Im, Jong Sun

    2001-02-01

    This book deals with semiconductor manufacturing equipment. It is comprised of nine chapters, which are manufacturing process of semiconductor device, history of semiconductor manufacturing equipment, kinds and role of semiconductor manufacturing equipment, construction and method of semiconductor manufacturing equipment, introduction of various semiconductor manufacturing equipment, spots of semiconductor manufacturing, technical elements of semiconductor manufacturing equipment, road map of technology of semiconductor manufacturing equipment and semiconductor manufacturing equipment in the 21st century.

  15. Developing and Managing Cross-Functional Teams: A Multi-Case Study of Brazilian Manufacturing Companies

    Directory of Open Access Journals (Sweden)

    Márcio Lopes Pimenta

    2014-06-01

    Full Text Available The growth of industries and the strong economic base in Brazil require improvements and adaptations in business processes. Cross-functional teams (CFT may help to companies achieve these improvements. This research looks at characterizing CFT according to application processes, structures, objectives and impacts, considering the context of demand planning and related processes. In-depth interviews with 22 managers were performed in three Brazilian manufacturing companies. A framework to characterize CFT and respective impacts is proposed, including elements such as: procedures, context and goals, power distribution, impacts on cross-functional integration, impacts on teams' performance and on organization's performance. One significant managerial finding is that effective and efficient CFTs need balanced distribution of power among members by effectively establishing and structuring the team. By doing this, managers may observe positive impacts on inter-functional integration and in firm's results. Moreover, teams should permanently perform joint planning to predict unfavorable situations, improve communication and mutual understanding.

  16. Comparative study originated photoneutrons different energy linear accelerators, manufacturer and model

    International Nuclear Information System (INIS)

    Exposito, M. R.; Terron, J. A.; Domingo, C.; Amgarou, K.; Garcia-Fuente, M. J.; Gonzalez-Soto, J.; Legares, J. I.; Gomez, F.; Sanchez-Doblado, F.

    2011-01-01

    Pollution neutron radiotherapy with photon beams of energy greater than 10 MV represents a major inconvenience for patients in treatment, given the increased likelihood of developing a second radiation-induced cancer. Most of these neutrons are generated in the accelerator head as a result of the interaction of photons with heavy metals. As a result, knowledge of the effect on patients in the fields of neutrons from the accelerator should lead to improvements in design and selection of components from manufacturers. For this purpose, we have performed comparative measurements of the neutron fields present in both the patient (represented by an anthropomorphic phantom) and in the treatment room, considering almost all types of machines currently operating in the world.

  17. Lean manufacturing comes to China: a case study of its impact on workplace health and safety.

    Science.gov (United States)

    Brown, Garrett D; O'Rourke, Dara

    2007-01-01

    Lean manufacturing, which establishes small production "cells," or teams of workers, who complete an entire product from raw material processing through final assembly and shipment, increases health and safety hazards by mixing previously separated exposures to various chemicals (with possible additive and cumulative effects) and noise. The intensification of work leads to greater ergonomic and stress-related adverse health effects, as well as increased safety hazards. The standard industrial hygiene approach of anticipation, recognition, evaluation, and hazard control is applicable to lean operations. A focus on worker participation in identifying and solving problems is critical for reducing negative impacts. A key to worker safety in lean production operations is the development of informed, empowered, and active workers with the knowledge, skills, and opportunity to act in the workplace to eliminate or reduce hazards.

  18. Shop Floor-Level Control of Manufacturing Companies: An Interview Study in Finland

    Directory of Open Access Journals (Sweden)

    Tokola Henri

    2015-02-01

    Full Text Available This paper publishes the results of interviews regarding shop-floor-level control of 18 Finnish manufacturing companies. The interviews had 17 open questions relating to demand characteristics, shop floor-level control issues, production flexibility, inventory control, and potential development areas. In order to get insights from the interviews, this paper analyses the answers from the interviews and categorises them into typical answers. The companies that were interviewed are also categorised as small companies with their own end products, subcontractors, or large companies with their own end products, and the emphasis of the analysis is on how companies differ in their shop floor-level control. The results show that different types of companies have different characteristics. Small companies are characterised by constant workflow, seasonal trends in demand, and the use of forecasts. Subcontractors have great daily variation in their demand and processing times. Large companies tend to focus on inventory issues.

  19. Study of strength of Dsub(y)150 gate valve case, manufactured by centrifugal casting

    International Nuclear Information System (INIS)

    Umanskaya, L.G.; Semenov, P.V.; Tinyakov, V.G.; Babkina, R.I.; Khatuntsev, Eh.V.

    1982-01-01

    A process for manufacturing centrifugal-cast gate valve body is developed. Structural strength of such items, homogeneity, ductile and strength properties over the cross section as well as the metal susceptibility to embrittlement have been investigated. Three cast gate valve bodies have been taken: one - of 20GSL steel - for hydraulic testing, and two - of 15Kh1MFL steel - for investigation into the metal properties across the valve thickness. The strength properties of the centrifugal-cast gate valve body of 15Kh1M1FL steel are stated to meet the specifications. The gate valve metal ductility (delta and PSI) is twice as high as that of a sand-cast valve. The microstructure, strength and ductility are uniform both over wall thickness and over different body cross sections

  20. Study on the Reasons and Countermeasures for Loss of Listed Companies in Manufacturing Industry

    Institute of Scientific and Technical Information of China (English)

    Yong; DU; Jun; DU; Bo; YAN

    2013-01-01

    In combination with the data of loss-making listed companies in manufacturing industry at capital market in 2008-2010,this paper analyzed the characteristics of loss of listed companies.Major reasons include the blind investment of management personnel,low operation and management level,blind pursuit of diversified operation,improper stock right structure,weak supervision of government,and imperfect delisting system.Finally,it came up with some countermeasures,including improving quality of management personnel,management personnel selecting proper investment projects,strengthening internal management of enterprise,implementing effective asset rearrangement,setting up effective incentive and restrictive mechanism,bringing into play regulation function of banks,improving delisting mechanism,reducing centralization of state owned stock right,and establishing and improving market information disclosure system.

  1. A Case Study of Analysis of Natural Frequency Variability Related to Manufacturing Process

    Directory of Open Access Journals (Sweden)

    T. Uhl

    2010-01-01

    Full Text Available One of the important challenges present nowadays in the automotive industry is minimizing of a car components design time. Traditional manufacturing of a prototype is usually a time and a cost consuming process. Alternatively, rapid prototyping techniques can be used in such a case. In the reported research a brake caliper was investigated, since it is an example of an element, which should have very strictly defined structural dynamic properties. As a technique of rapid prototyping of the considered caliper the 3D printing of a mould was selected. A process of the caliper casting with the use of the "prototype" mould is different than the one with the use of the metal form. Thus it is very likely that the both considered types of the caliper would possess different properties from the point of view of structural dynamics.

  2. Ergonomic assessment for the task of repairing computers in a manufacturing company: A case study.

    Science.gov (United States)

    Maldonado-Macías, Aidé; Realyvásquez, Arturo; Hernández, Juan Luis; García-Alcaraz, Jorge

    2015-01-01

    Manufacturing industry workers who repair computers may be exposed to ergonomic risk factors. This project analyzes the tasks involved in the computer repair process to (1) find the risk level for musculoskeletal disorders (MSDs) and (2) propose ergonomic interventions to address any ergonomic issues. Work procedures and main body postures were video recorded and analyzed using task analysis, the Rapid Entire Body Assessment (REBA) postural method, and biomechanical analysis. High risk for MSDs was found on every subtask using REBA. Although biomechanical analysis found an acceptable mass center displacement during tasks, a hazardous level of compression on the lower back during computer's transportation was detected. This assessment found ergonomic risks mainly in the trunk, arm/forearm, and legs; the neck and hand/wrist were also compromised. Opportunities for ergonomic analyses and interventions in the design and execution of computer repair tasks are discussed.

  3. Nonclinical comparability studies of recombinant human arylsulfatase A addressing manufacturing process changes.

    Science.gov (United States)

    Wright, Teresa; Li, Aiqun; Lotterhand, Jason; Graham, Anne-Renee; Huang, Yan; Avila, Nancy; Pan, Jing

    2018-01-01

    Recombinant human arylsulfatase A (rhASA) is in clinical development for the treatment of patients with metachromatic leukodystrophy (MLD). Manufacturing process changes were introduced to improve robustness and efficiency, resulting in higher levels of mannose-6-phosphate and sialic acid in post-change (process B) compared with pre-change (process A) rhASA. A nonclinical comparability program was conducted to compare process A and process B rhASA. All doses were administered intrathecally. Pharmacodynamic comparability was evaluated in immunotolerant MLD mice, using immunohistochemical staining of lysosomal-associated membrane protein-1 (LAMP-1). Pharmacokinetic comparability was assessed in juvenile cynomolgus monkeys dosed once with 6.0 mg (equivalent to 100 mg/kg of brain weight) process A or process B rhASA. Biodistribution was compared by quantitative whole-body autoradiography in rats. Potential toxicity of process B rhASA was evaluated by repeated rhASA administration at doses of 18.6 mg in juvenile cynomolgus monkeys. The specific activities for process A and process B rhASA were 89 U/mg and 106 U/mg, respectively, which were both well within the target range for the assay. Pharmacodynamic assessments showed no statistically significant differences in LAMP-1 immunohistochemical staining in the spinal cord and in most of the brain areas assessed between process A and B rhASA-dosed mice. LAMP-1 staining was reduced with both process A and B rhASA compared with vehicle, supporting its activity. Concentration-time curves in cerebrospinal fluid and serum of cynomolgus monkeys were similar with process A and B rhASA. Process A and B rhASA were similar in terms of their pharmacokinetic parameters and biodistribution data. No process B rhASA-related toxicity was detected. In conclusion, manufacturing process changes did not affect the pharmacodynamic, pharmacokinetic or safety profiles of process B rhASA relative to process A rhASA.

  4. Ergonomic study of biorhythm effect on the 62 occurrence of human errors and accidents in automobile manufacturing industry

    Directory of Open Access Journals (Sweden)

    2012-03-01

    Conclusion: This study showed that the frequency of accidents in critical days and negative section of physical cycle was more than expected. Also the frequency of accidents in critical days and negative section of emotional and intellectual cycle was less than expected. Due to the physical nature of the work activities in the automobile manufacturing industry can be stated that the study showed that in physical work activities, frequency of accidents in critical days and negative section of physical cycle in which the person is not physically ready to do the job was more than expected.

  5. A qualitative study of institutional review board members' experience reviewing research proposals using emergency exception from informed consent.

    Science.gov (United States)

    McClure, Katie B; Delorio, Nicole M; Schmidt, Terri A; Chiodo, Gary; Gorman, Paul

    2007-05-01

    Emergency exception to informed consent regulation was introduced to provide a venue to perform research on subjects in emergency situations before obtaining informed consent. For a study to proceed, institutional review boards (IRBs) need to determine if the regulations have been met. To determine IRB members' experience reviewing research protocols using emergency exception to informed consent. This qualitative research used semistructured telephone interviews of 10 selected IRB members from around the US in the fall of 2003. IRB members were chosen as little is known about their views of exception to consent, and part of their mandate is the protection of human subjects in research. Interview questions focused on the length of review process, ethical and legal considerations, training provided to IRB members on the regulations, and experience using community consultation and notification. Content analysis was performed on the transcripts of interviews. To ensure validity, data analysis was performed by individuals with varying backgrounds: three emergency physicians, an IRB member and a layperson. Respondents noted that: (1) emergency exception to informed consent studies require lengthy review; (2) community consultation and notification regulations are vague and hard to implement; (3) current regulations, if applied correctly, protect human subjects; (4) legal counsel is an important aspect of reviewing exception to informed-consent protocols; and (5) IRB members have had little or no formal training in these regulations, but are able to access materials needed to review such protocols. This preliminary study suggests that IRB members find emergency exception to informed consent studies take longer to review than other protocols, and that community consultation and community notification are the most difficult aspect of the regulations with which to comply but that they adequately protect human subjects.

  6. Home-based balance training using the Wii balance board: a randomized, crossover pilot study in multiple sclerosis.

    Science.gov (United States)

    Prosperini, Luca; Fortuna, Deborah; Giannì, Costanza; Leonardi, Laura; Marchetti, Maria Rita; Pozzilli, Carlo

    2013-01-01

    To evaluate the effectiveness of a home-based rehabilitation of balance using the Nintendo Wii Balance Board System (WBBS) in patients affected by multiple sclerosis (MS). In this 24-week, randomized, 2-period crossover pilot study, 36 patients having an objective balance disorder were randomly assigned in a 1:1 ratio to 2 counterbalanced arms. Group A started a 12-week period of home-based WBBS training followed by a 12-week period without any intervention; group B received the treatment in reverse order. As endpoints, we considered the mean difference (compared with baseline) in force platform measures (i.e., the displacement of body center of pressure in 30 seconds), 4-step square test (FSST), 25-foot timed walking test (25-FWT), and 29-item MS Impact Scale (MSIS-29), as evaluated after 12 weeks and at the end of the 24-week study period. The 2 groups did not differ in baseline characteristics. Repeated-measures analyses of variance showed significant time × treatment effects, indicating that WBBS was effective in ameliorating force platform measures (F = 4.608, P = .016), FSST (F = 3.745, P = .034), 25-FWT (F = 3.339, P = .048), and MSIS-29 (F = 4.282, P = .023). Five adverse events attributable to the WBSS training (knee or low back pain) were recorded, but only 1 patient had to retire from the study. A home-based WBBS training might potentially provide an effective, engaging, balance rehabilitation solution for people with MS. However, the risk of WBBS training-related injuries should be carefully balanced with benefits. Further studies, including cost-effectiveness analyses, are warranted to establish whether WBBS may be useful in the home setting.

  7. Eucalyptus grandis AND Eucalyptus dunnii USE FOR WOOD-CEMENT PANELS MANUFACTURING

    Directory of Open Access Journals (Sweden)

    Setsuo Iwakiri

    2008-03-01

    Full Text Available This research evaluated the potential use of Eucalyptus grandis and Eucalyptus dunnii wood for wood-cement panelsmanufacturing. The boards were manufactured at the density of 1,20 g/cm³, using portland cement as mineral bonding and woodfurnish without treatment, treated in cold water and hot water. The wood furnish of Pinus taeda was used as control. The resultsindicated that it is not necessary to treat E. grandis and E. dunni wood for wood-cement board manufacturing. In relation to woodspecies, the board manufactured with E. dunnii showed lower values of mechanical properties. However, boards manufactured of E.grandis wood showed satisfactory results in comparison to boards of P. taeda and the referenced values of BISON process and otherproducts cited in the pertnent literature, indicating the high potential for wood-cement board manufacture of this tree species.

  8. Relationship of duration of work exposure and feeling of subjective fatigue: A case study on jewelry manufacturing workers in India

    Directory of Open Access Journals (Sweden)

    Urmi Ravindra Salve

    2017-01-01

    Full Text Available Aims: Fatigue can be defined in various conditions. In literature it has been defined and explored by various researches through different aspects. This study was conducted to establish the relationship between the duration of work exposure and feeling of subjective fatigue. Materials and Methods: Twenty-one jewelry manufacturing workers as study group and 27 students as control group participated with their signed informed consent. The daily diary method and feeling of subjective fatigue evaluation questionnaire were used as a tool in this study. Three categories of feeling of subjective fatigue were considered in this study. The study was conducted mainly in the middle of the week. The data regarding feeling of subjective fatigue were collected before starting of work and after completion of the work day. Results: The results showed that The time spent on the job by the workers engaged in jewelry manufacturing was 670 min and were in four slots with the longest work period being 240 min. Sleeping time was found to be around 480 min. Conclusion: The study revealed that all three dimensions (general, mental, and physical were affected by the whole day work exposure. Among three types of fatigues, general fatigue was observed at the beginning and end of the work shift.

  9. The emotional process from diagnosis to birth following a prenatal diagnosis of fetal anomaly: A qualitative study of messages in online discussion boards.

    Science.gov (United States)

    Carlsson, Tommy; Starke, Veronica; Mattsson, Elisabet

    2017-05-01

    to explore written statements found in online discussion boards where parents currently expecting, or with previous experience of expecting, a child with a prenatally diagnosed congenital anomaly communicate about their emotional process from diagnosis to birth. cross-sectional qualitative study of messages in public online discussion boards. Swedish public discussion boards about reproductive subjects. ten pregnant women and eight parents (of children with prenatal diagnoses) who had written 852 messages in five threads in Swedish online discussion boards identified via systematic searches. three phases were identified in the process of moving from the diagnosis to the birth: shock, existential crisis, and life remodeling. The people posting message ('posters') moved from initial shock to existential crisis and, lastly, a phase of remodeling life later in the pregnancy. During the pregnancy, considerable worries about both antenatal and postnatal aspects were expressed. To cope with their situation, the posters distanced themselves from the diagnoses, vented their feelings, sought control, and obtained practical support from friends and relatives. expectant parents faced with a prenatal diagnosis move from initial shock to a phase of life remodeling and acceptance. Burdened with considerable worries, expectant parents cope with their situation through informational, emotional, and instrumental support from health professionals, family, friends, and peers. health professionals should make sure that expectant parents feel involved in planning their children's postnatal care, that they are offered sufficient information, and that they have access to emotional and instrumental support structures. Copyright © 2017. Published by Elsevier Ltd.

  10. Departmental Appeals Board Decisions

    Data.gov (United States)

    U.S. Department of Health & Human Services — Decisions issued by the Chair and Board Members of the Departmental Appeals Board concerning determinations in discretionary, project grant programs, including...

  11. Pilot Boarding Areas

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Pilot boarding areas are locations at sea where pilots familiar with local waters board incoming vessels to navigate their passage to a destination port. Pilotage is...

  12. MEDICAL MANUFACTURING INNOVATIONS

    Directory of Open Access Journals (Sweden)

    Cosma Sorin Cosmin

    2015-02-01

    Full Text Available The purpose of these studies was to improve the design and manufacturing process by selective laser melting, of new medical implants. After manufacturing process, the implants were measured, microscopically and mechanical analyzed. Implants manufactured by AM can be an attractive option for surface coatings to improve the osseointegration process. The main advantages of customized implants made by AM process are: the precise adaptation to the region of implantation, better cosmesis, reduced surgical times and better performance over their generic counterparts. These medical manufacturing changes the way that the surgeons are planning surgeries and engineers are designing custom implant. AM process has eliminated the constraints of shape, size, internal structure and mechanical properties making it possible for fabrication of implants that conform to the physical and mechanical requirements of implantation according to CT images. This article will review some custom implants fabricated in DME using biocompatible titanium.

  13. 15 CFR 400.33 - Restrictions on manufacturing and processing activity.

    Science.gov (United States)

    2010-01-01

    ...-TRADE ZONES BOARD Manufacturing and Processing Activity-Reviews § 400.33 Restrictions on manufacturing and processing activity. (a) In general. In approving manufacturing or processing activity for a zone... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Restrictions on manufacturing and...

  14. 76 FR 16379 - Foreign-Trade Zone 177-Evansville, IN; Application for Manufacturing Authority, Best Chair, Inc...

    Science.gov (United States)

    2011-03-23

    ...--Evansville, IN; Application for Manufacturing Authority, Best Chair, Inc. d/b/a Best Home Furnishings... Zones Board (the Board) by the Ports of Indiana, grantee of FTZ 177, requesting manufacturing authority on behalf of Best Chair, Inc. d/b/a Best Home Furnishings (Best Home), to manufacture upholstered...

  15. Relationships between study habits, burnout, and general surgery resident performance on the American Board of Surgery In-Training Examination.

    Science.gov (United States)

    Smeds, Matthew R; Thrush, Carol R; McDaniel, Faith K; Gill, Roop; Kimbrough, Mary K; Shames, Brian D; Sussman, Jeffrey J; Galante, Joseph M; Wittgen, Catherine M; Ansari, Parswa; Allen, Steven R; Nussbaum, Michael S; Hess, Donald T; Knight, David C; Bentley, Frederick R

    2017-09-01

    The American Board of Surgery In-Training Examination (ABSITE) is used by programs to evaluate the knowledge and readiness of trainees to sit for the general surgery qualifying examination. It is often used as a tool for resident promotion and may be used by fellowship programs to evaluate candidates. Burnout has been associated with job performance and satisfaction; however, its presence and effects on surgical trainees' performance are not well studied. We sought to understand factors including burnout and study habits that may contribute to performance on the ABSITE examination. Anonymous electronic surveys were distributed to all residents at 10 surgical residency programs (n = 326). Questions included demographics as well as study habits, career interests, residency characteristics, and burnout scores using the Oldenburg Burnout Inventory, which assesses burnout because of both exhaustion and disengagement. These surveys were then linked to the individual's 2016 ABSITE and United States Medical Licensing Examination (USMLE) step 1 and 2 scores provided by the programs to determine factors associated with successful ABSITE performance. In total, 48% (n = 157) of the residents completed the survey. Of those completing the survey, 48 (31%) scored in the highest ABSITE quartile (≥75th percentile) and 109 (69%) scored less than the 75th percentile. In univariate analyses, those in the highest ABSITE quartile had significantly higher USMLE step 1 and step 2 scores (P shop compared with at home; P < 0.04), and used active rather than passive study strategies (P < 0.04). Gender, marital status, having children, and debt burden had no correlation with examination success. Backward stepwise multiple regression analysis identified the following independent predictors of ABSITE scores: study location (P < 0.0001), frequency of reading (P = 0.0001), Oldenburg Burnout Inventory exhaustion (P = 0.02), and USMLE step 1 and 2 scores (P = 0.007 and 0

  16. In Defense of Boards

    NARCIS (Netherlands)

    B. Visser (Bauke); S. Dominguez Martinez (Silvia); O.H. Swank (Otto)

    2007-01-01

    textabstractIt is often assumed that bad corporate performance means a bad CEO. The task of a board of directors is then simple: dismiss the executive. If it fails to do so, the board is said to be indolent. We take a kinder approach to observed board behaviour and point to the problems even

  17. ISO in the Construction and Manufacturing Companies: A Case Study from the Construction Industry of Hyderabad and Karachi, Pakistan

    Directory of Open Access Journals (Sweden)

    Nafees Ahmed Memon

    2011-04-01

    Full Text Available Construction industry plays very important role in development of any country. The development of construction industry depends to a larger extent on quality of construction productions and projects. Quality of construction productions and projects is linked with the implementation of QMS (Quality Management System in construction organizations. ISO certification is one of the QMS which has been adopted in manufacturing and construction industry at the global level. The construction companies of developing countries have reaped many advantages from the effective implementation of ISO standards. The rate of adoption of ISO standards has remained slow in the construction sector of some developing countries like Pakistan. This paper presents the literature review of ISO in global construction industry. It highlights the advantages, disadvantages and barriers faced by construction companies in the implementation of ISO standards. This study also investigates the level of adoption of ISO standards in construction and manufacturing companies of Pakistan through a questionnaire survey. It presents the comparison of ISO standards\\\\\\' adoption in both construction and manufacturing sectors. The paper puts forward some suggestions and recommendation for the better adoption and improvement of ISO implementation in the construction sector of Pakistan. This study emphasizes that construction companies of Pakistan should learn from the benefits reaped by the construction companies of developed countries and take appropriate measures for implementing ISO standards. It also suggests that public sector clients should make it obligatory for the contractors and consultants to have ISO certification before awarding the works in order to enhance the the adoption of ISO standards in construction sector.

  18. How two-tier boards can be more effective

    NARCIS (Netherlands)

    dr. Stefan Peij; Pieter-Jan Bezemer; Laura de Kruijs; Gregory Maassen

    2014-01-01

    Purpose – This study seeks to explore how non-executive directors address governance problems on Dutch two-tier boards. Within this board model, challenges might be particularly difficult to address due to the formal separation of management boards' decision-management from supervisory boards'

  19. Six-sigma application in tire-manufacturing company: a case study

    Science.gov (United States)

    Gupta, Vikash; Jain, Rahul; Meena, M. L.; Dangayach, G. S.

    2017-09-01

    Globalization, advancement of technologies, and increment in the demand of the customer change the way of doing business in the companies. To overcome these barriers, the six-sigma define-measure-analyze-improve-control (DMAIC) method is most popular and useful. This method helps to trim down the wastes and generating the potential ways of improvement in the process as well as service industries. In the current research, the DMAIC method was used for decreasing the process variations of bead splice causing wastage of material. This six-sigma DMAIC research was initiated by problem identification through voice of customer in the define step. The subsequent step constitutes of gathering the specification data of existing tire bead. This step was followed by the analysis and improvement steps, where the six-sigma quality tools such as cause-effect diagram, statistical process control, and substantial analysis of existing system were implemented for root cause identification and reduction in process variation. The process control charts were used for systematic observation and control the process. Utilizing DMAIC methodology, the standard deviation was decreased from 2.17 to 1.69. The process capability index (C p) value was enhanced from 1.65 to 2.95 and the process performance capability index (C pk) value was enhanced from 0.94 to 2.66. A DMAIC methodology was established that can play a key role for reducing defects in the tire-manufacturing process in India.

  20. Pendekatan Konsep Lean Manufacturing untuk Meminimasi Waste pada Sistem Produksi (Studi Kasus PT. XYZ

    Directory of Open Access Journals (Sweden)

    Rakhmawati Rakhmawati

    2017-03-01

    Full Text Available Every company wishes to provide the best possible service to their customers bydelivering their products on time, for which quality and production lead time are the key factorsthat need continuous improvements by way of adopting the right internal strategy. This researchapplies the concept of lean manufacturing to identity wastes along the value stream to find outnon added value activities. In the initial stage, Big Picture Mapping is used to describe thewhole stream entirely, than Process Activity Mapping is used to find value added, non valueadded and necessary-but-non-value added activities, whilst Quality Filter Mapping is used tofind the defects of the quality of defect type. In the last stage, Total Product Maintenance(TPM is applied to minimize defects by means of Overall Equipment Effectiveness (OEE. TheOEE Sensitivity analysis is applied to the operating time, cycle time and defects to find out themost influential factor for the improvement of OEE. The result of this research has identifiedcycle time as the influential factor that affects the OEE value. The 10% decrease in cycle timewill improve OEE by 10,20%

  1. Software for improving the quality of project management, a case study: international manufacture of electrical equipment

    Science.gov (United States)

    Preradović, D. M.; Mićić, Lj S.; Barz, C.

    2017-05-01

    Production conditions in today’s world require software support at every stage of production and development of new products, for quality assurance and compliance with ISO standards. In addition to ISO standards such as usual metrics of quality, companies today are focused on other optional standards, such as CMMI (Capability Maturity Model Integrated) or prescribing they own standards. However, while there is intensive progress being made in the PM (project management), there is still a significant number of projects, at the global level, that are failures. These have failed to achieve their goals, within budget or timeframe. This paper focuses on checking the role of software tools through the rate of success in projects implemented in the case of internationally manufactured electrical equipment. The results of this research show the level of contribution of the project management software used to manage and develop new products to improve PM processes and PM functions, and how selection of the software tools affects the quality of PM processes and successfully completed projects.

  2. MODELING BILL-OF-MATERIAL WITH TREE DATA STRUCTURE: CASE STUDY IN FURNITURE MANUFACTURER

    Directory of Open Access Journals (Sweden)

    Toni Prahasto

    2012-02-01

    Full Text Available This paper presents a modeling of Bill-of-Material with tree data structure. The BOM represents wooden furniture products. The management of BOM is incorporated into an MRP software which is specially built for a furniture manufacturer. The tree data structure is approached with an object oriented programming to provide the creation and modification of the data. The tree object is designed so that a downstream programmer can create an application with high productivity, using the BOM object of course. Legality of the development is ensured by adapting open source resources, i.e. MySQL database engine, PHP server script, and client-side Javascript. The BOM object is used extensively in the MRP software that is being developed. A couple of screenshots are presented to demonstrate the ease of creation and manipulation of Bill-of-Material. The proper approach of modeling BOM with tree structure allows the programmer to reach high productivity during the development of the aforementioned MRP customized software. Keyword : Modeling, Bill of Material, Tree Data Structure

  3. A labour market study of the manufacturing, oil and gas, and business services industries in Calgary

    International Nuclear Information System (INIS)

    1994-06-01

    A survey was conducted in Calgary in spring 1994 of 861 firms in the manufacturing, oil and gas, and service industries. The main objective of the survey was to collect labor market information to assist in making career and educational decisions. A total of 543 employment vacancies were identified, with the largest number of vacancies reported for electrical contractors, computer operators, petroleum engineers, geologists, and geological technicians. A total of 1,129 new personnel were planned to be hired in the near future. Of the employees covered by the survey, 57.1% were reported as having some post-secondary qualifications. Over 88% of reported employment was listed as full-time. Of the firms surveyed, 56.2% indicated that they would provide training to their employees over the next six months. Of the three industries surveyed, the oil and gas sector reported the largest increase in employment within the past six months. Improved profitability and sales in natural gas was a major factor for the reported increase of 1,648 employees in the oil and gas sector. 16 figs., 17 tabs

  4. Design for Manufacture and Assembly for Product Development (Case study : Emergency Lamp)

    Science.gov (United States)

    Ngatilah, Y.; Pulansari, F.; Ernawati, Dira; Pujiastuti, C.; Parwati, C. I.; Prasetyo, B.

    2018-01-01

    Community needs that are not primary but important in everyday life are lights for lighting. State electricity company (PLN) is experiencing limitations in supplying electricity for this puIDRose. Therefore emergency lights (emergency lights) are already marketed in the community, which limited function only illuminate a very limited space. Therefore we developed the design of energy saving lamps using “Light Emitting Diode” (LED) which can illuminate the whole house as well as functioning as mobile phone charger (HP). The method used is Design for Manufacture and Assembly (DFMA), with the result of design development The percentage increase in assembly efficiency (E) is 0.01071 - 0.00645 = 0.00426 or = 39.76%. The decrease in material costs is IDR 234,000 - IDR 214,000 = IDR 20,000 or = 8.54% .Development design is received because of more assembly efficiency than the initial design. Power usage on previous products with series and designs of the original product can last only 4-5 hours non-stop, while the development of the design can survive 9-10 hours 2x more energy efficient.

  5. Study into the feasibility of manufacturing liquid glass using resource-saving technology

    Directory of Open Access Journals (Sweden)

    Mizyuryaev Sergey

    2017-01-01

    Full Text Available The authors’ views on the problem of resource-saving in the production of building materials are outlined, with three main modes of resource-saving indicated: the use of cheap raw materials, a reduction in the production costs, and an increase in the efficiency of the produced materials and products. The research provides information on the production and use of liquid glass in industry, including the construction industry. The theoretical substantiation of the possibility of developing a resource-saving technology for the production of liquid glass for construction purposes is given. The work provides information on promising alternative raw material components - diatomite, natural rock and black ash, industrial waste. Their properties are given as well as the justification of their effective use as raw materials. The method of preparation of the components and their mixtures, the preparation of sodium silicate through roasting, and the identification of the suitability of the obtained product for the manufacture of efficient building materials are described. Conclusions are made in regards to the feasibility of producing liquid glass using resource-saving technology.

  6. Regression with Small Data Sets: A Case Study using Code Surrogates in Additive Manufacturing

    Energy Technology Data Exchange (ETDEWEB)

    Kamath, C. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Fan, Y. J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2017-04-11

    There has been an increasing interest in recent years in the mining of massive data sets whose sizes are measured in terabytes. While it is easy to collect such large data sets in some application domains, there are others where collecting even a single data point can be very expensive, so the resulting data sets have only tens or hundreds of samples. For example, when complex computer simulations are used to understand a scientific phenomenon, we want to run the simulation for many different values of the input parameters and analyze the resulting output. The data set relating the simulation inputs and outputs is typically quite small, especially when each run of the simulation is expensive. However, regression techniques can still be used on such data sets to build an inexpensive \\surrogate" that could provide an approximate output for a given set of inputs. A good surrogate can be very useful in sensitivity analysis, uncertainty analysis, and in designing experiments. In this paper, we compare different regression techniques to determine how well they predict melt-pool characteristics in the problem domain of additive manufacturing. Our analysis indicates that some of the commonly used regression methods do perform quite well even on small data sets.

  7. Board of Directors or Supervisory Board

    DEFF Research Database (Denmark)

    Werlauff, Erik

    2009-01-01

    The article analyses the legal consequences of the choice now available to Danish public limited companies, which can now opt for a two-tier management structure, in which the management board undertakes both the day-to-day and the overall management, while a supervisory board exercises control...... over the management board, including its appointment and dismissal. The article considers which companies a two-tier structure may be relevant for, and reviews the consequences for the composition, election and functioning of the company organs....

  8. Competitive manufacturing strategies for the manufacturing industries in Turkey

    OpenAIRE

    Ulusoy, Gündüz; Ulusoy, Gunduz

    2003-01-01

    In this study, results of the research into competitive manufacturing strategies of companies in four different sector studies covering 82 companies from the electronics, cement, automotive manufacturers, and appliances part and component suppliers in Turkey are presented. The data used in the study are gathered by conducting four sector surveys in 1997 and 1998 using a questionnaire supported by some follow-up interviews and site visits. A competitive manufacturing strategy is represented he...

  9. Prevalence and risk factors of contact dermatitis among clothing manufacturing employees in Beijing: A cross-sectional study.

    Science.gov (United States)

    Chen, Yu-Xin; Cheng, Hai-Yan; Li, Lin-Feng

    2017-03-01

    Little is known about the epidemiology of contact dermatitis (CD) in the Chinese clothing industry. This study aimed to investigate the prevalence and some risk factors of contact dermatitis among clothing manufacturing employees in Beijing.This cross-sectional study was conducted by interview using self-administered questionnaires and skin examination between May and August in 2016. Five-hundred twenty-nine employees who had worked at sewing, ironing, and as managers at 12 clothing manufacturing factories were studied.The overall 1-year prevalence of CD among the clothing employees was 28.5% (151/529 employees), with significantly higher prevalence among ironing workers (50%) and sewers (31.7%) compared with managers (12.7%; P garment materials (leather and feather), dry skin, allergic rhinitis, age, and smoking.Among employees in Chinese clothing industry, sewers and ironing workers had a higher 1-year prevalence of CD than managers. It is noteworthy that exposure to leather and feather materials and the types of manual work are associated with CD, as well as dry skin and allergic rhinitis.

  10. Challenges with the introduction of radio-frequency identification systems into a manufacturer's supply chain - a pilot study

    Science.gov (United States)

    Kumar, Sameer; Kadow, Brooke B.; Lamkin, Melissa K.

    2011-05-01

    As radio-frequency identification (RFID) implementation becomes more widespread it is important for managers to consider if this technology is right for their businesses. This study examines challenges of RFID implementation along with a cost-benefit analysis of a pharmaceuticals manufacturer's supply chain. Research was gathered from a variety of sources on the topic of RFID to provide an in-depth analysis of challenges and benefits found with RFID systems. Furthermore, the study reviews the real case applications of the RFID technology in healthcare and customer services. Many of the challenges with RFID stem from improper planning of the synchronisation of the supply chain and the integration of RFID technology into facilities and software systems. Customer privacy, excess information and obsolete technology are also of concern to companies considering RFID. Benefits such as increased information sharing, product visibility and real-time information help to offset these challenges. In addition, pharmaceuticals manufacturer real case application showed cost savings from reducing labour and decreased opportunities for lost product counteract the expense to implement an RFID system. This study will be of value to managers who are attempting to implement RFID technology in their companies. It is intended that readers, both academics and practitioners, will be able to identify possible challenges and mitigate them as the RFID technology is put into practice.

  11. Roadmap for Lean implementation in Indian automotive component manufacturing industry: comparative study of UNIDO Model and ISM Model

    Science.gov (United States)

    Jadhav, J. R.; Mantha, S. S.; Rane, S. B.

    2015-06-01

    The demands for automobiles increased drastically in last two and half decades in India. Many global automobile manufacturers and Tier-1 suppliers have already set up research, development and manufacturing facilities in India. The Indian automotive component industry started implementing Lean practices to fulfill the demand of these customers. United Nations Industrial Development Organization (UNIDO) has taken proactive approach in association with Automotive Component Manufacturers Association of India (ACMA) and the Government of India to assist Indian SMEs in various clusters since 1999 to make them globally competitive. The primary objectives of this research are to study the UNIDO-ACMA Model as well as ISM Model of Lean implementation and validate the ISM Model by comparing with UNIDO-ACMA Model. It also aims at presenting a roadmap for Lean implementation in Indian automotive component industry. This paper is based on secondary data which include the research articles, web articles, doctoral thesis, survey reports and books on automotive industry in the field of Lean, JIT and ISM. ISM Model for Lean practice bundles was developed by authors in consultation with Lean practitioners. The UNIDO-ACMA Model has six stages whereas ISM Model has eight phases for Lean implementation. The ISM-based Lean implementation model is validated through high degree of similarity with UNIDO-ACMA Model. The major contribution of this paper is the proposed ISM Model for sustainable Lean implementation. The ISM-based Lean implementation framework presents greater insight of implementation process at more microlevel as compared to UNIDO-ACMA Model.

  12. Mechanical Failure of Endocrowns Manufactured with Different Ceramic Materials: An In Vitro Biomechanical Study.

    Science.gov (United States)

    Aktas, Guliz; Yerlikaya, Hatice; Akca, Kivanc

    2018-04-01

    To evaluate the effect of different silica-based ceramic materials on the mechanical failure behavior of endocrowns used in the restoration of endodontically treated mandibular molar teeth. Thirty-six intact mandibular molar teeth extracted because of a loss of periodontal support received root canal treatment. The teeth were prepared with a central cavity to support the endocrowns, replacing the occlusal surface with mesial-lingual-distal walls. Data acquisition of the prepared tooth surfaces was carried out digitally with a powder-free intraoral scanner. Restoration designs were completed on manufactured restorations from three silicate ceramics: alumina-silicate (control), zirconia-reinforced (Zr-R), and polymer-infiltrated (P-I). Following adhesive cementation, endocrowns were subjected to thermal aging, and then, each specimen was obliquely loaded to record the fracture strength and define the mechanical failure. For the failure definition, the fracture type characteristics were identified, and further analytic measurements were made on the fractured tooth and ceramic structure. Load-to-fracture failure did not differ significantly, and the calculated mean values were 1035.08 N, 1058.33 N, and 1025.00 N for control, Zr-R, and P-I groups, respectively; however, the stiffness of the restoration-tooth complex was significantly higher than that in both test groups. No statistically significant correlation was established in paired comparisons of the failure strength, restorative stiffness, and fractured tooth distance parameters. The failure mode for teeth restored with zirconia-reinforced glass ceramics was identified as non-restorable. The resin interface in the control and P-I groups presented similar adhesive failure behavior. Mechanical failure of endocrown restorations does not significantly differ for silica-based ceramics modified either with zirconia or polymer. © 2016 by the American College of Prosthodontists.

  13. Study on manufacturing technique of synthetic shock-absorbers for underground disposal of high-level radioactive wastes

    International Nuclear Information System (INIS)

    Iwasaki, Takashi; Onodera, Yoshio; Hayashi, Hiromichi; Ebina, Takeo; Nagase, Takako; Torii, Kazuo

    1997-01-01

    On the cse of underground disposal of high level radioactive wastes, natural bentonite is planned to be used for artificial barrier shock-absorber. This is due to expectation of sealing water or adsorbing nuclear materials using swelling and ion-exchanging capacities of smectite, which is a main component of bentonite. In this study, some swelling laminar compounds with various compositions and structures are synthesized to investigate their water sealing and nuclear adsorbing properties. And, according to their results, an optimum material is selected to develop its economic manufacturing method and investigate its alternative possibility for natural bentonite. From such reason, following two titled studies have been executed; 1) Synthesis of the swelling laminar compounds, and 2) Development of manufacturing technique of artificial shock-absorber. In 1995 FY, 1) Detail investigation on synthetic condition of double octahedral type smectite and 2) modeling of the smectite and stability of same type displacement for base of inducing the computer simulation for estimating creation process of optimum materials, were conducted. (G.K.)

  14. A Method for Manufacturing Oncological Phantoms for the Quantification of 18F-FDG PET and DW-MRI Studies

    Directory of Open Access Journals (Sweden)

    Francesca Gallivanone

    2017-01-01

    Full Text Available The aim of this work was to develop a method to manufacture oncological phantoms for quantitation purposes in 18F-FDG PET and DW-MRI studies. Radioactive and diffusion materials were prepared using a mixture of agarose and sucrose radioactive gels. T2 relaxation and diffusion properties of gels at different sucrose concentrations were evaluated. Realistic oncological lesions were created using 3D-printed plastic molds filled with the gel mixture. Once solidified, gels were extracted from molds and immersed in a low-radioactivity gel simulating normal background tissue. A breast cancer phantom was manufactured using the proposed method as an exploratory feasibility study, including several realistic oncological configurations in terms of both radioactivity and diffusion. The phantom was acquired in PET with 18F-FDG, immediately after solidification, and in DW-MRI the following day. Functional volumes characterizing the simulated BC lesions were segmented from PET and DW-MRI images. Measured radioactive uptake and ADC values were compared with gold standards. Phantom preparation was straightforward, and the time schedule was compatible with both PET and MRI measurements. Lesions appeared on 18F-FDG PET and DW-MRI images as expected, without visible artifacts. Lesion functional parameters revealed the phantom’s potential for validating quantification methods, in particular for new generation hybrid PET-MRI systems.

  15. A Study on the Manufacturing Properties of Crack Self-Healing Capsules Using Cement Powder for Addition to Cement Composites

    Directory of Open Access Journals (Sweden)

    Yun-Wang Choi

    2017-01-01

    Full Text Available We fabricated crack self-healing capsules using cement powder for mixing into cement composites and evaluated the properties of the capsule manufacturing process in this study. The manufacture of the self-healing capsules is divided into core production processing of granulating cement in powder form and a coating process for creating a wall on the surfaces of the granulated cement particles. The produced capsules contain unhardened cement and can be mixed directly with the cement composite materials because they are protected from moisture by the wall material. Therefore, the untreated cement is present in the form of a capsule within the cement composite, and hydration can be induced by moisture penetrating the crack surface in the event of cracking. In the process of granulating the cement, it is important to obtain a suitable consistency through the kneading agent and to maintain the moisture barrier performance of the wall material. We can utilize the results of this study as a basis for advanced self-healing capsule technology for cement composites.

  16. Study of thermo-fluidic behavior of micro-droplet in inkjet-based micro manufacturing processes

    Science.gov (United States)

    Das, Raju; Mahapatra, Abhijit; Ball, Amit Kumar; Roy, Shibendu Shekhar; Murmu, Naresh Chandra

    2017-06-01

    Inkjet printing technology, a maskless, non-contact patterning operation, which has been a revelation in the field of micro and nano manufacturing for its use in the selective deposition of desired materials. It is becoming an exciting alternative technology such as lithography to print functional material on to a substrate. Selective deposition of functional materials on desired substrates is a basic requirement in many of the printing based micro and nano manufacturing operations like the fabrication of microelectronic devices, solar cell, Light-emitting Diode (LED) research fields like pharmaceutical industries for drug discovery purposes and in biotechnology to make DNA microarrays. In this paper, an attempt has been made to design and develop an indigenous Electrohydrodynamic Inkjet printing system for micro fabrication and to study the interrelationships between various thermos-fluidic parameters of the ink material in the printing process. The effect of printing process parameters on printing performance characteristics has also been studied. And the applicability of the process has also been experimentally demonstrated. The experimentally found results were quite satisfactory and accordance to its applicability.

  17. Studies of Standard Heat Treatment Effects on Microstructure and Mechanical Properties of Laser Net Shape Manufactured INCONEL 718

    Science.gov (United States)

    Qi, H.; Azer, M.; Ritter, A.

    2009-10-01

    Laser net shape manufacturing (LNSM) is a laser cladding/deposition based technology, which can fabricate and repair near-net-shape high-performance components directly from metal powders. Characterizing mechanical properties of the laser net shape manufactured components is prerequisite to the applications of LNSM in aircraft engine industrial productions. Nickel-based superalloys such as INCONEL 718 are the most commonly used metal materials in aircraft engine high-performance components. In this study, the laser deposition process is optimized through a set of designed experiments to reduce the porosity to less than 0.03 pct. It is found that the use of plasma rotating electrode processed (PREP) powder and a high energy input level greater than 80 J/mm are necessary conditions to minimize the porosity. Material microstructure and tensile properties of laser-deposited INCONEL 718 are studied and compared under heat treatment conditions of as deposited, direct aged, solution treatment and aging (STA), and full homogenization followed by STA. Tensile test results showed that the direct age heat treatment produces the highest tensile strength equivalent to the wrought material, which is followed by the STA-treated and the homogenization-treated tensile strengths, while the ductility exhibits the reverse trend. Finally, failure modes of the tensile specimens were analyzed with fractography.

  18. Methodology for systematic analysis and improvement of manufacturing unit process life cycle inventory (UPLCI) CO2PE! initiative (cooperative effort on process emissions in manufacturing). Part 2: case studies

    DEFF Research Database (Denmark)

    Kellens, Karel; Dewulf, Wim; Overcash, Michael

    2012-01-01

    industrial data and engineering calculations for energy use and material loss. This approach is illustrated by means of a case study of a drilling process.The in-depth approach, which leads to more accurate LCI data as well as the identification of potential for environmental improvements...... for environmental improvement based on the in-depth analysis of individual manufacturing unit processes. Two case studies illustrate the applicability of the methodology.......This report presents two case studies, one for both the screening approach and the in-depth approach, demonstrating the application of the life cycle assessment-oriented methodology for systematic inventory analysis of the machine tool use phase of manufacturing unit processes, which has been...

  19. Study of an alternative method for inspection of rods with UO{sub 2} pellets early manufactured

    Energy Technology Data Exchange (ETDEWEB)

    Carnaval, João Paulo R.; Oliveira, Carlos A.; Beltran, Dalton J.M.C., E-mail: joaocarnaval@inb.gov.br, E-mail: carlossilva@inb.gov.br, E-mail: daltonbeltran@inb.gov.br [Indústrias Nucleares do Brasil S.A. (INB), Resende, RJ (Brazil). Gerência de Engenharia do Produto e Gerência de Análise do Combustível

    2017-07-01

    The inspection of the fuel rods manufactured at INB, for production of fuel assemblies, is based on a group of scintillators detectors in series scanning the products. These detectors capture the gamma rays emitted on the decay of uranium isotopes (passive measurement) and determine the enrichment level ({sup 235}U weight percent) of the UO{sub 2} pellets inside the fuel rods. During the inspection of fuel rods for Angra-1 21{sup st} Reload, it was found that the 2.6% {sup 235}U and 4.15% {sup 235}U pellets stacks behave as 2.6% {sup 235}U only. The investigation of this event allowed to conclude that the measurement of enrichment may be affected by the loss of the secular equilibrium among uranium isotopes and their decay products caused by the AUC precipitation during the UO{sub 2} powder and pellet fabrication. Therefore, the spectrum background created by Compton scattering, inside Rod Scanner detectors, from high energies of {sup 238}U products decay affect the {sup 235}U% measurement. After continuous measurements, the 2.6% {sup 235}U and 4.15% {sup 235}U pellets stacks became distinguished and the results were used to calculate an 'equilibrium factor'. It was concluded that after 35 days the UO{sub 2} powder should reach approximately 60% of secular equilibrium reinstatement and the rods assembled with the pellets produced from this powder would be adequate for inspection on Rod Scanner. It was concluded that would be possible to achieve the equilibrium factor by blending a lot of UO{sub 2} powder manufactured a long time ago (old powder) with another lot early manufactured (young powder) resulting in a lot which would provide pellets and, consequently, rods adequate for inspection by Rod Scanner. This work presents a study of an alternative method to perform the inspection of fuel rods with UO{sub 2} pellets early manufactured aiming to provide quality assurance for the product. (author)

  20. Pulmonary function, respiratory symptoms, and dust exposures among workers engaged in early manufacturing processes of tea: a cohort study.

    Science.gov (United States)

    Shieh, Tzong-Shiun; Chung, Jui-Jung; Wang, Chung-Jing; Tsai, Perng-Jy; Kuo, Yau-Chang; Guo, How-Ran

    2012-02-13

    To evaluate pulmonary function and respiratory symptoms in workers engaged in the early manufacturing processes of tea and to identify the associated factors, we conducted a study in a tea production area in Taiwan. We recruited tea workers who engaged in the early manufacturing process in the Mountain Ali area in Taiwan and a comparison group of local office workers who were matched for age, gender, and smoking habits. We performed questionnaire interviews, pulmonary function tests, skin prick tests, and measurement of specific IgE for tea on the participants and assessed tea dust exposures in the tea factories. The 91 participating tea workers had higher prevalence of respiratory symptoms than the comparison group (32 participants). Among tea workers, ball-rolling workers had the highest prevalence of symptoms and the highest exposures of inhalable dusts. At baseline, tea workers had similar pulmonary functions as the comparison group, but compared to the other tea workers ball-rolling workers had a lower ratio of the 1-second forced expiratory volume to forced vital capacity (FEV1/FVC) and a lower maximal mid-expiratory flow rate expressed as% of the predicted value--MMF (%pred). A total of 58 tea workers participated in the on-site investigation and the cross-shift lung function measurements. We found ball-rolling yielded the highest inhalable dust level, panning yielded the highest respirable dust level, and withering yielded the lowest levels of both dusts. Ball-rolling also yielded the highest coarse fraction (defined as inhalable dusts minus respirable dusts), which represented exposures from nose to tracheobronchial tract. During the shift, we observed significant declines in pulmonary function, especially in ball-rolling workers. Multiple regressions showed that age, height, work tasks, coarse fraction, and number of months working in tea manufacturing each year were independent predictors of certain pulmonary function parameters in tea workers. Tea