WorldWideScience

Sample records for machine works company

  1. THE EVALUATION OF EFFICIENCY OF THE USE OF MACHINE WORKING TIME IN THE INDUSTRIAL COMPANY – CASE STUDY

    Directory of Open Access Journals (Sweden)

    Edyta KARDAS

    2017-10-01

    Full Text Available In the paper the evaluation of efficiency of the use of machines in the selected production company was presented. The OEE method (Overall Equipment Effectiveness was used for the analysis. The selected company deals with the produc-tion of tapered roller bearings. The analysis of effectiveness was done for 17 automatic grinding lines working in the department of grinding rollers. Low level of efficiency of machines was affected by problems with the availability of ma-chines and devices. The causes of machine downtime on these lines was also analyzed. Three basic causes of downtime were identified: no kanban card, diamonding, no operator. Ways to improve the use of these machines were suggested. The analysis takes into account the actual results from the production process and covers the period of one calendar year.

  2. Company Leaders To Inspect Service Work

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    <正>Wu Nianzu, Party secretary, chairman and president of the Shanghai Airport Group Company, inspected the service work at Pudong Airport on August 28.A forum on service work was held with more than 90 persons attending, including Cao Huifang, general manager of the Shanghai Airport Co Ltd, and Zhu Jiyu, Party secretary of the company.

  3. 75 FR 41524 - Cranston Print Works Company, Webster Division, Webster, MA; Cranston Print Works Company...

    Science.gov (United States)

    2010-07-16

    ... Employment and Training Administration Cranston Print Works Company, Webster Division, Webster, MA; Cranston Print Works Company, Corporate Offices, Cranston, RI; Amended Certification Regarding Eligibility To... for Worker Adjustment Assistance on February 6, 2009, applicable to workers of Cranston Print...

  4. 75 FR 41894 - Wapakoneta Machine Company, Currently Known as EF Industrial Technologies, Inc., Wapakoneta, OH...

    Science.gov (United States)

    2010-07-19

    ... production of machine knives. New information shows that as of early 2010, Wapakoneta Machine Company is... Employment and Training Administration Wapakoneta Machine Company, Currently Known as EF Industrial..., 2010, applicable to workers of Wapakoneta Machine Company, Wapakoneta, Ohio. The notice was...

  5. Balancing Machine Work, Comfort Work, and Sentimental Work

    DEFF Research Database (Denmark)

    Pedersen, Maria Ie; Hansen, Magnus; Hertzum, Morten

    2011-01-01

    and attention. We investigate ambulance care in three of Denmark’s five healthcare regions, which staff ambulances with emergency medical technicians, paramedics, and physicians. Using the concept of illness trajectory we analyse how the ambulance crews balance machine work, which involves continuously...... work, but also that this has negative consequences. Equipment for use in ambulances should aim at supporting the ambulance crews in competently and dynamically balancing the different types of work and should, consequently, avoid binding the crew’s attention for unbroken periods of time....... monitoring the equipment, comfort work, which is actions taken to relieve the pain or discomfort of the patient, and sentimental work, which is care for the patient’s physical and mental well-being, often verbal in nature. The analysis shows that comfort and sentimental work often takes priority over machine...

  6. 77 FR 62265 - Long Elevator & Machine Company, Inc., Including Workers Whose Wages Were Reported Through Kone...

    Science.gov (United States)

    2012-10-12

    ... Elevator & Machine Company, Inc., Including Workers Whose Wages Were Reported Through Kone, Inc., Riverton... workers of Long Elevator & Machine Company, Inc., including workers whose wages were reported through Kone, Inc., Riverton, Illinois (hereafter referred to as Long Elevator & Machine Company or the subject...

  7. Organigraphs: drawing how companies really work.

    Science.gov (United States)

    Mintzberg, H; Van der Heyden, L

    1999-01-01

    Walk into any organization and you will get a snapshot of the company in action--people and products moving every which way. But ask for a picture of the company and you will be given the org chart, with its orderly little boxes showing just the names and titles of managers. Now there's a more revealing way to depict the people and operations within an organization--an approach called the organigraph. The organigraph is not a chart. It's a map that offers an overview of the company's functions and the ways that people organize themselves at work. Perhaps most important, an organigraph can help managers see untapped competitive opportunities. Drawing on the organigraphs they created for about a dozen companies, authors Mintzberg and Van der Heyden illustrate just how valuable a tool the organigraph is. For instance, one they created for Electrocomponents, a British distributor of electrical and mechanical items, led managers to a better understanding of the company's real expertise--business-to-business relationships. As a result of that insight, the company wisely decided to expand in Asia and to increase its Internet business. As one manager says, "It allowed the company to see all sorts of new possibilities." With traditional hierarchies vanishing and newfangled--and often quite complex--organizational forms taking their place, people are struggling to understand how their companies work. What parts connect to one another? How should processes and people come together? Whose ideas have to flow where? With their flexibility and realism, organigraphs give managers a new way to answer those questions.

  8. e-Learning Application for Machine Maintenance Process using Iterative Method in XYZ Company

    Science.gov (United States)

    Nurunisa, Suaidah; Kurniawati, Amelia; Pramuditya Soesanto, Rayinda; Yunan Kurnia Septo Hediyanto, Umar

    2016-02-01

    XYZ Company is a company based on manufacturing part for airplane, one of the machine that is categorized as key facility in the company is Millac 5H6P. As a key facility, the machines should be assured to work well and in peak condition, therefore, maintenance process is needed periodically. From the data gathering, it is known that there are lack of competency from the maintenance staff to maintain different type of machine which is not assigned by the supervisor, this indicate that knowledge which possessed by maintenance staff are uneven. The purpose of this research is to create knowledge-based e-learning application as a realization from externalization process in knowledge transfer process to maintain the machine. The application feature are adjusted for maintenance purpose using e-learning framework for maintenance process, the content of the application support multimedia for learning purpose. QFD is used in this research to understand the needs from user. The application is built using moodle with iterative method for software development cycle and UML Diagram. The result from this research is e-learning application as sharing knowledge media for maintenance staff in the company. From the test, it is known that the application make maintenance staff easy to understand the competencies.

  9. Working-life - A paradox in Knowledge-Intensive Companies

    DEFF Research Database (Denmark)

    Ipsen, Christine

    2004-01-01

    A Working-Life Paradox in Knowledge Intensive Companies Keywords: Knowledge work, knowledge management, working-life, consulting companies. The purpose of this article is to identify the influence knowledge-work has on working life of the personnel in knowledge-intensive companies, more precisely...

  10. Working-life - A paradox in Knowledge-Intensive Companies

    DEFF Research Database (Denmark)

    Ipsen, Christine

    2004-01-01

    A Working-Life Paradox in Knowledge Intensive Companies Keywords: Knowledge work, knowledge management, working-life, consulting companies. The purpose of this article is to identify the influence knowledge-work has on working life of the personnel in knowledge-intensive companies, more precisely...

  11. A proposed model for assessing service quality in small machining and industrial maintenance companies

    Directory of Open Access Journals (Sweden)

    Morvam dos Santos Netto

    2014-11-01

    Full Text Available Machining and industrial maintenance services include repair (corrective maintenance of equipments, activities involving the assembly-disassembly of equipments, fault diagnosis, machining operations, forming operations, welding processes, assembly and test of equipments. This article proposes a model for assessing the quality of services provided by small machining and industrial maintenance companies, since there is a gap in the literature regarding this issue and because the importance of small service companies in socio-economic development of the country. The model is an adaptation of the SERVQUAL instrument and the criteria determining the quality of services are designed according to the service cycle of a typical small machining and industrial maintenance company. In this sense, the Moments of Truth have been considered in the preparation of two separate questionnaires. The first questionnaire contains 24 statements that reflect the expectations of customers, and the second one contains 24 statements that measure perceptions of service performance. An additional item was included in each questionnaire to assess, respectively, the overall expectation about the services and the overall company performance. Therefore, it is a model that considers the interfaces of the client/supplier relationship, the peculiarities of the machining and industrial maintenance service sector and the company size.

  12. Basic machines and how they work

    CERN Document Server

    Education, Naval

    1997-01-01

    Only elementary math skills are needed to follow this manual, which covers many machines and their components, including hydrostatics and hydraulics, internal combustion engines, trains, and more. 204 black-and-white illustrations.

  13. NORMATIVE MEASUREMENTS OF NOISE AT CNC MACHINES WORK STATIONS

    Directory of Open Access Journals (Sweden)

    Dariusz Mika

    2016-06-01

    Full Text Available Minimisation of noise at a workstation is among fundamental tasks for maintaining safety at work, both in terms of health (the auditory system in particular as well as work comfort. Thus, it is very important to systematically monitor noise levels by carrying out reliable measurements at a workstation. The method of performing noise measurements at workstations of specific machines is normalised so the results of such measurements for different machines is comparable. This paper presents noise measurements for DMC 635 numerically controlled milling machine, performed in accordance with PN ISO 230-5:2002 norm. The results showed that the level of noise at the operator’s workstation significantly exceeds the norm at certain machining parameters. The results of tests are concluded as detailed recommendation for the CNC machine tool operator to use hearing protection when at work.

  14. Work for sustainability: Case studies of Brazilian companies.

    Science.gov (United States)

    Bolis, Ivan; Brunoro, Claudio M; Sznelwar, Laerte I

    2016-11-01

    The introduction of strategic corporate sustainability policies is expected to result in the improvement of several issues in companies. One of these issues is work, which should involve greater well-being for workers. Within the context of production engineering, this research connects sustainability and work-related issues, the latter seen in light of the discipline of ergonomics. Based on case studies conducted at four companies considered sustainability benchmarks, we examined how the introduction of the theme of sustainability has influenced work-related issues. The elements analyzed here were the corporate sustainability strategy, organizational practices for deploying the strategy, and the work design phase. The last element is the moment in which work is prescribed in the organization. The results show that, despite the announcement of the inclusion of changes in work, there is not any explicit evidence confirming that such changes are considered as a requirement for corporate sustainability projects. Copyright © 2015 Elsevier Ltd. All rights reserved.

  15. Analysis of accidents leading to amputations associated with operating with press machines, using Ishikawa and SCAT Combined method in a car manufacturing company

    Directory of Open Access Journals (Sweden)

    J. Nematolahi

    2015-12-01

      Conclusion: According to results, the main interfce causes of accidents leading to amputation due to operating with press machines is hurry at work because of increased production volume particularly by contractor companies. Furthermore, non-dynamic HSE system accompanied by ineffective supervision of personnel’s unsafe acts by the first layers of management are recognized as the basic causes of such accidents.

  16. The analysis of human error as causes in the maintenance of machines: a case study in mining companies

    Directory of Open Access Journals (Sweden)

    Kovacevic, Srdja

    2016-12-01

    Full Text Available This paper describes the two-step method used to analyse the factors and aspects influencing human error during the maintenance of mining machines. The first step is the cause-effect analysis, supported by brainstorming, where five factors and 21 aspects are identified. During the second step, the group fuzzy analytic hierarchy process is used to rank the identified factors and aspects. A case study is done on mining companies in Serbia. The key aspects are ranked according to an analysis that included experts who assess risks in mining companies (a maintenance engineer, a technologist, an ergonomist, a psychologist, and an organisational scientist. Failure to follow technical maintenance instructions, poor organisation of the training process, inadequate diagnostic equipment, and a lack of understanding of the work process are identified as the most important causes of human error.

  17. A Qualitative Study of Knowledge Exchange in an Indonesian Machine-Making Company

    Directory of Open Access Journals (Sweden)

    Indria Handoko

    2016-08-01

    Full Text Available In a supply chain, company’s ability to leverage knowledge that resides within the network of contracted and interacting firms is able to improve not only company performance but also the supply chain effectiveness as a whole. However, existing supply chain studies mostly discuss knowledge at company level, and rarely at internal-hierarchical levels. As a result, many things remain concealed, for example, how knowledge exchange between people across levels in a supply chain is influenced by the supply chain government. Moreover, most exsisting studies focus on a rigid hierarchical supply-chain mechanism, and hardly elaborate how interactions in a less-rigid mechanism. This article attempts to address these gaps, discussing how a supplier company that deals with innovation generation activities acquires knowledge that resides in its supply chain network. A qualitative case study about an Indonesian machine-making company has been chosen to represent one of supplier types in the automotive industry that deals with less-rigid mechanism. A social capital perspective is applied to shed light on how interactions between actors in a supply chain network influence knowledge exchange. The study finds out a positive relationship between social capital and knowledge exchange across levels and functions to help generate innovations, allowing the company to manage conflicting effect beliefs more effectively. The study also identifies a tendency of the company to regard intensive knowledge exchange as part of organizational learning process.

  18. Working capital, profitability, liquidity and solvency of healthcare insurance companies

    Directory of Open Access Journals (Sweden)

    André Luiz de Souza Guimarães

    2010-01-01

    Full Text Available The purpose of this study is to analyze the adequacy of a working capital management normative model, in terms of profitability, liquidity and solvency. Through an empirical and analytical research, the analysis of variance results (ANOVA of a sample containing financial information from 621 healthcare insurance companies for the year 2006 ,show that different working capital structures are associated with different levels of profitability, liquidity and solvency, suggesting a preference order different from the one theorized by Fleuriet / Braga. The results indicate that a certain structure - where financial current assets exceed onerous current liabilities, and cyclical current assets exceed cyclical current liabilities ¿ is associated with higher levels of profitability, liquidity and solvency. In addition, the study reiterates the importance of efficient management of working capital to the performance and survival of healthcare insurance companies.

  19. NUFACT02 MACHINE WORKING GROUP SUMMARY.

    Energy Technology Data Exchange (ETDEWEB)

    AUTIN,B.FERNOW,R.C.MACHIDA,S.HARRIS,D.A.

    2002-07-01

    At {nu}Fact'02, the muon-based neutrino factory was confronted with existing and planned neutrino facilities. When it was first discussed in 1999 in Lyon [1], it raised great enthusiasm, especially because it was thought to be the only machine capable of measuring CP violation in the leptonic sector. Since that time the pendulum has partially swung back. Two successive detailed studies [2, 3] have shown that a neutrino Factory and the needed R&D were both expensive. In terms of present experiments, neutrino oscillations have been confirmed at SuperK and SNO and results are soon expected from KamLAND. K2K, MniBOONE, MINOS and CNGS are going ahead and new perspectives have been opened by off-axis pion-based neutrino beams and the approval of the high intensity Japanese Hadron Facility. Crests and troughs of a wave are common in long term projects. They are even healthy because they force us to scrutinize the first ideas and sometimes to invent new ones to reach a realistic and affordable design. This analysis has been applied to target systems (section 2), RF capture and cooling of the muons (section 4) and accelerators (section 5). The new concept of pure electron neutrino or anti-neutrino beams produced by, {beta}-decay is discussed in section 3.

  20. Antecedents of work engagement in a multinational oil company

    Directory of Open Access Journals (Sweden)

    AL Olivier

    2007-03-01

    Full Text Available The objective of this study was to investigate the antecedents of work engagement. Stratified random samples (N=171 were taken of employees in a multinational oil company. The Work Engagement Scale and the Work Experiences Scale were administered. The results confirmed that psychological meaningfulness and psychological availability were significant predictors of work engagement. Psychological meaningfulness displayed the strongest positive relationship with engagement. The relationship of co-worker relations and work role fit with work engagement was mediated by the psychological condition of meaningfulness. Cognitive, emotional and physical resources had the strongest effect on psychological availability. Co-worker relations and co-worker norms predicted psychological safety. The relationship between resources and work engagement was mediated by the psychological condition of availability.

  1. Effects of payment method on work control, work risk and work-related musculoskeletal health among sewing machine operators

    Directory of Open Access Journals (Sweden)

    R. Nawawi

    2015-12-01

    Full Text Available Effects of payment method on work control, work risk and work-related musculoskeletal health among sewing machine operators R. Nawawi1, B.M. Deros1*, D.D.I. Daruis2, A. Ramli3, R.M. Zein4 and L.H. Joseph3 1Dept. of Mechanical and Materials Engineering Faculty of Engineering & Built Environment Universiti Kebangsaan Malaysia, Malaysia *Email: hjbaba@ukm.edu.my 2Faculty of Engineering, Universiti Pertahanan Nasional Malaysia, Malaysia 3Department of Physiotherapy Faculty of Science, Lincoln University College, Malaysia 4Department of Consultation, Research & Development, National Institute of Occupational Safety and Health (NIOSH, Malaysia ABSTRACT This study aimed to identify payment method and its effects on work control, work risk and work-related musculoskeletal health among Malaysian sewing machine operators. The study sample comprised 337 sewing machine operators (male, n=122, female, n=215; aged between 18-54 years old; mean 30.74±8.44 from four different garment-making companies in Malaysia. They were being paid via time rate wages (n=246 and piece rate wages (n=91. Data was collected through Nordic Musculoskeletal Questionnaire and pen-and-paper assessment via Rapid Upper Limb Assessment (RULA. From the study, the piece rate wage group was found to take fewer breaks, had high work production demands, worked at a faster pace and experienced more exhaustion and pressure due to increasing work demands as compared to the time rate group. They were also observed working with higher physical exposure such as repetitive tasks, awkward static postures, awkward grips and hand movements, pulling, lifting and pushing as compared to those in the time rate wage group. The final RULA scores was also higher from the piece rate wage group (72.53% RULA score 7 which indicated higher work risks among them. The study found that the type of wage payment was significantly associated with work risks (p=0.036, df=1 and WRMSD at the shoulder, lower back

  2. Working fluids and expansion machines for ORC

    Science.gov (United States)

    Richter, Lukáš; Linhart, Jiří

    2016-06-01

    This paper discusses the key technical aspects of the Organic Rankin - Clausius cycle (ORC), unconventional technology with great potential for the use of low-potential heat and the use of geothermal and solar energy, and in connection with the burning of biomass. The principle of ORC has been known since the late 19th century. The development of new organic substances and improvements to the expansion device now allows full commercial exploitation of ORC. The right choice of organic working substances has the most important role in the design of ORC, depending on the specific application. The chosen working substance and achieved operating parameters will affect the selection and construction of the expansion device. For this purpose the screw engine, inversion of the screw compressor, can be used.

  3. THEORETICAL CLARIFICATIONS REGARDING THE CONCEPT OF WORKING CAPACITY OF WOOD-WORKING MACHINE-TOOLS

    Directory of Open Access Journals (Sweden)

    Gavril BUDĂU

    2014-09-01

    Full Text Available Due to persisting confusions between the concepts “labor productivity” and “working capacity” of a machine-tool, equipment or production line, the authors considered it necessary to define and explain these terms. Starting by defining the notions “working cycle” and “functioning cycle”, the paper details: the theoretical, technological and real working capacity and also the term “working time norm” for wood-working machine-tools.

  4. [Preventive measures against tuberculosis in working facilities and companies].

    Science.gov (United States)

    Suzuki, Kiminori; Satou, Ken

    2007-03-01

    The health care program in working facilities and companies have played a significant part in prevention of tuberculosis. However, the ordinary national tuberculosis survey policy was abolished in April, 2005 and the tuberculosis survey for salary-earners is on the brink of drastic change. In this symposium the current status of the prevailing survey of tuberculosis in working facilities and companies was reviewed and the future direction of the tuberculosis survey in comparison to that in lung cancer survey was discussed. 1. Epidemiological trends of tuberculosis from the tuberculosis surveillance data: Masako OHMORI (Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association). The estimated rate of tuberculosis case discovery by periodical mass screening in the working facilities was 0.033% and it was higher than that in general adult population. The detection rate of tuberculosis in nurses who suffered from tuberculosis reached 40.4% by an aid of mass X-ray screening and 8.7% by contact tracing. The risk of onset of the disease was 4.3 times higher nurses than in general at the same years of age. The importance of infection control measures in the medical facilities was emphasized. 2. Current status and problems in tuberculosis control in a large-sized company: Yusuke NAKAOKA (Department of Occupational Health, Osaka Railway Hospital, West Japan Railway Company). Some preventive modalities against TB such as periodical medical check-up and awareness programs have been done for the purpose of prevention in our company. The prevalence of the disease has significantly reduced in number. The specific circumstances in large-sized company should be taken into consideration, and it is important for company workers and health professionals to recognize their roles in preventing the infectious disease. 3. Are there any differences between clinical cases and control people working for small-sized companies in the onset of tuberculosis?: Osamu NAKASHIMA, Kohei

  5. 75 FR 5145 - ThyssenKrupp Crankshaft Company, LLC, Fostoria Machining, a Subsidiary of ThyssenKrupp AG...

    Science.gov (United States)

    2010-02-01

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF LABOR Employment and Training Administration ThyssenKrupp Crankshaft Company, LLC, Fostoria Machining, a Subsidiary..., Fostoria Machining, a subsidiary of ThyssenKrupp AG, including on-site leased workers from Kelly...

  6. Women Working in Music Education: The War Machine

    Science.gov (United States)

    Gould, Elizabeth

    2009-01-01

    When women take up the work of music education, of the university, and become nomadic, engaging Deleuze and Guattari's war machine, all kinds of things happen. As nomads in music education, women traverse borders and boundaries that would otherwise limit and constrain them as they initiate alternative possibilities related to teaching and learning…

  7. ANALYSIS AND OPTIMISATION OF DYNAMIC STABILITY OF MOBILE WORKING MACHINES

    Directory of Open Access Journals (Sweden)

    Peter BIGOŠ

    2014-09-01

    Full Text Available This paper describes an investigation of the dynamic stability, which is specified for the mobile working machines. There are presented the basic theoretical principles of the stability theory together with an introduction of two illustrative examples of the dynamic stability analysis.

  8. Safety management system of subcontractors’ works in foundry companies

    Directory of Open Access Journals (Sweden)

    M. Rączka

    2010-07-01

    Full Text Available Most companies use the services of subcontractors, either in their core business, or to support the work – e.g. maintenance. This poses the need for effective and systematic monitoring of the work of subcontractors, especially if they perform it on the premises of an enterprise. In some industries such as construction, energy, petrochemicals, metallurgy and foundry additional system requirements appear, particularly with regard to safety and the environment, a compliance with which is necessary to obtain an order. Often, conformity with these requirements must be confirmed with a certificate. The article presents examples of standardised special requirements, such as SCC /VCA, SCT / VCU, SQAS used for sub-contractors of construction work, maintenance, scaffolding etc. in the European Union member states.

  9. Shaper and Milling Machine Operation, Machine Shop Work 2: 9555.04.

    Science.gov (United States)

    Dade County Public Schools, Miami, FL.

    The course outline has been prepared to assist the student in learning the basic skills and safety for shaper and milling operations. The course presents the various types of machines, work holding devices, cutting tools and feeds and speeds, and instruction designed to enable the student to obtain the manipulative skills and related knowledge…

  10. Research into Financial Position of Listed Companies following Classification via Extreme Learning Machine Based upon DE Optimization

    Directory of Open Access Journals (Sweden)

    Fu Yu

    2016-01-01

    Full Text Available By means of the model of extreme learning machine based upon DE optimization, this article particularly centers on the optimization thinking of such a model as well as its application effect in the field of listed company’s financial position classification. It proves that the improved extreme learning machine algorithm based upon DE optimization eclipses the traditional extreme learning machine algorithm following comparison. Meanwhile, this article also intends to introduce certain research thinking concerning extreme learning machine into the economics classification area so as to fulfill the purpose of computerizing the speedy but effective evaluation of massive financial statements of listed companies pertain to different classes

  11. Preferences among different Telecommunications companies working in Khartoum

    Directory of Open Access Journals (Sweden)

    Elrayah Mohamed I shag Osman

    2013-11-01

    Full Text Available Different cellular mobile service provides are working in Sudan, which is Zain, MTN, Sudani persons. They vary in their Preferences for preferring one company; sure there are many reasons behind that.This study was attempted to determine which factors for preferences. A sample had been taken in Khartoum for employees, students, businessmen and public. Also market seniority plays role in Preferences. The results reveal that there are many factors which explain 80% from the total variation one of them was connected to mobile phone using itself which is Associability , second was connected is showing up and imitation, others may connected to cost , Advertisement , net work strength and nationality . Lastly I think this can be applicable all round the universe.

  12. The impact of high performance work systems in Irish companies: an examination of company and employee outcomes

    OpenAIRE

    Mkamwa, Thadeus F.

    2010-01-01

    This study examines the impact of High Performance Work Systems (HPWS) on company and employee-level performance outcomes. At the company level, the study examines the outcomes of HPWS usage on innovation, productivity and turnover. The study uses data collected from 132 companies in Ireland who participated in a general manager (GM) and human resource (HR) manager survey conducted in 2006. This study shows that an extensive application ...

  13. WORK ETHICS IN ROMANIAN COMPANIES (I - EMPRIRICAL EVIDENCES

    Directory of Open Access Journals (Sweden)

    Pup Anca

    2012-07-01

    Full Text Available In many countries (e.g. Japan, China it has been proved that a key-driven factor in increasing their economical development consists on employees’ attitude toward work. Based on the assumption, the main objective of this article is to compound a descriptive image on drivers and barriers on work ethic in Romania, which illustrate the most frequent ethical issues in firm-employee relation. In this respect, the sense which I attributed to the term “work ethics” refers to specific attributes of relationship between two parts: employee and firm and in the second paper I will use this term based on Weber’s definition as a belief in the moral value of the work. The empirical evidences presented here are the results of a research based on an online survey which I applied to managers and/or persons in leading position in Romanian small and medium enterprises. Using this methodological instrument, I collect responses from 828 companies from 41 different Romanian counties land. The resultants indicates that the main source of the unethical practices is based upon a double phenomenon: employees fail to comply with their labor contract duties and management administration restricts employees’ rights to work (applying discriminatory practices and rights to a fair wage.

  14. Life cycle thinking in the design for environment aware work machines

    Energy Technology Data Exchange (ETDEWEB)

    Tonteri, H.; Vatanen, S.; Lahtinen, R.; Kuuva, M. [VTT Industrial Systems, Espoo (Finland)

    2003-07-01

    The report was prepared in the Design for Environment of Work Machines project. The following companies formed the project management group: Valtra Inc., Timberjack Oy, Ponsse Oyj, Rautaruukki Oyj, Sandvik Tamrock Corp., Kalmar Industries Oy Ab, Oy M-Filter Ab, Junkkari Muovi Oy and Kuusakoski Oy. The main objectives of Design for Environment (DFE) are to reduce negative environmental impacts during a product's life cycle, to save natural resources and to cut the amount of non-recyclable non-reusable waste. Achieving these targets calls for a variety of development actions which complement each other and cover the entire life cycle of a product. This report includes DFE solutions presented in literature and implemented by the companies taking part in the project. The project developed the idea of assessing different the recyclability of different materials during product design. More advanced knowledge of recyclability was achieved during the development of recyclability instructions by examining the most common materials found in work machines instead of different material groups. Existing information about the recyclability of materials was defined e.g. with the companies using scrap as raw material. Information about the mechanical properties of materials was included in the instructions in a bid to improve usability levels. The findings show that environmental declarations are little used and differ from each other. Environmental declarations are based on life cycle assessment and additional environmental information, which includes e.g. the amount of recycled material found in a product and information about poisonous substances such as pesticides found in textiles. Lately, also work machine manufacturers have published environmental declarations. Improving the usability of environmental information requires establishing comprehensive principles both for the production and presentation of such information. A more uniform way of presenting environmental

  15. WORK-LIFE BALANCE POLICIES IN JORDANIAN TELECOMMUNICATION COMPANIES

    Directory of Open Access Journals (Sweden)

    Mahmoud Abubaker

    2016-07-01

    Full Text Available No published work is available on work-life balance (WLB programs in Jordan. Drawing on the methodology of Critical Realism, interviews with ten senior managers, and case studies in two large telecommunication companies were undertaken. WLB practices had both similarities and differences from those in developed countries. WLB policy and practice was constructed within three main areas: social and cultural practices; financial practices; leave arrangements. In comparison with developed countries, social practices such as praying time, Hajj leave and Ramadan concessions reflected the culture and religion of Jordan as an Arabic, Islamic country. Flexible practices, such as compressed working and paternity leave did not exist. The absence of these practices was also linked to social and cultural factors, as well to levels of current economic development. However, part-time working was developed primarily to benefit employers, rather than employees, in contrast to most developed countries.Employers’ reasons for adopting WLB practices were the level of competition in the labour market, government regulations, social and culture norms of society, pressures from women in the workforce, and pressure from labour unions. Financial practices were linked to the competitive market, reflecting the need to retain well-qualified staff. Financial benefits including subsidized childcare, paid study leave, and family health insurance, were reported to have the strongest positive impact on organisational morale and staff retention.

  16. THE EFFECT OF IMPLEMENTATION MAINTENANCE CARDS IN PERFORMANCE OF MACHINES IN SELECTED PRODUCTION COMPANY

    Directory of Open Access Journals (Sweden)

    Michał ZASADZIEŃ

    2015-10-01

    Full Text Available Intelligent development should become an inherent part of the policy of each enterprise which wants to develop and maintain its position on the competitive market. The article presents investigations related to the implementation of one of Total Productive Maintenance system elements. Reasons for introducing a new procedure for circulating information about machine inspections and overhauls planned, the major element of which are work sheets for key machines taking part in the production process, have been presented. The effectiveness of the new procedure was subjected to analysis by comparing particular machines’ work times and downtimes before and after the implementation of new procedures. The conducted research revealed an increased effectiveness of machines’ work, which resulted from shortened down-times, especially the duration of a failure.

  17. THE EFFECTS OF MACHINES USED IN APPAREL COMPANIES TO THE PROFITABILITY

    Directory of Open Access Journals (Sweden)

    KONFEKSİYON İŞLETMELERİNDEKİ MAKİNELERİN ÜNAL

    2005-02-01

    Full Text Available There are strong competition conditions at the market of ready made garment products which has an important part of world trade. In this sector, the technology development and research facilities have an important place because of the quality and technology are at the priority position. In our country, Turkey, lots of manufacturers tend to added valued and profitable products instead of usual, low priced and low added valued products. In this situation, new technologies must be used. But the usage of this kind of tecnologies could not be suitable for every company. The sewing automat is a kind of system group that can do any kind of sewing operation by itself. These kinds of complex machines need less number but more skilfull of workers. Decreasing of order quantities, fastly changing product and production types are given necessary to the workers for suiting these changes. In this paper, increasing of production quantity without changing quality was researched. For this purpose, ideal production method was proposed with the comparision of classical sewing machines and sewing automats for the point of production methods view.

  18. Team work, performance generating element in the Romanian companies

    Directory of Open Access Journals (Sweden)

    Genoveva Buzamat

    2014-11-01

    Full Text Available 800x600 In this study we try to present some aspects related to the advantages and disadvantages of the team work. In present time, almost any work is performed in team and the results of the management are the same as the results of the team. We know today many methods to form a successful team but there is always place for improvement, therefor in our study we propose the evaluation of each employee from two points of view: competence and commitment to the company Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

  19. Work-related muscoskeletal symptoms and work impairment among workers in Turkish companies

    Directory of Open Access Journals (Sweden)

    Aliye Mandıracıoğlu

    2016-12-01

    Full Text Available Objective: Musculoskeletal disorders are major problems for the working population. The aims of study were to describe musculoskeletal symptoms (MSS and work impairment among workers and to analyze the relationships between these complaints and work related and individual factors. Method: This was a cross-sectional study. The study population consisted of 498 workers from four different companies in Izmir. A questionnaire including questions relating to socio-demographic characteristics, working conditions, lifestyle factors, body mass index, social relationships and job satisfaction was administered. The General Nordic Questionnaire for MSS was used to examine reported complaints over the past 12 months. Work activity impairment was evaluated by two items in this study. These attempted to determine whether health problems in the last 7 days affected daily life and working life. Results: Mean age was 35.3 ± 8.2 years (range 18-60 years; 79.2% of participants were male. 67.7% had experienced MSS in at least one body part during the past 12 months. Lower back pain was the most common MSS. There were no relationships between MSS and the following work-related factors: type of company, employment status, occupational category, career length, daily working hours, shift work, working overtime, night work, relationships with colleagues. Employees who were satisfied with their jobs and work conditions had a statistically significantly lower rate of complaints. There were significant correlations between poor posture and MSS. There was an association between MSS and work impairment. Conclusions: Musculoskeletal symptoms were a common problem among workers in the study population. An important risk was work-related poor posture.

  20. Company welfare and social work ethics: a space for social work? : A discussion based on cases from Norway and Tanzania.

    Directory of Open Access Journals (Sweden)

    Anne Ryen

    2015-03-01

    Full Text Available This article deals with company welfare and social work ethics. If social work is concerned with welfare and distributional issues, we would assume company welfare to be an issue of great relevance to social workers, so why do we not come across any social workers in our fieldwork? This calls for the simple question “where do social workers work?” or rather “how come social workers do not work in private companies?” We explore into the combination of social work and private companies with special reference to social work ethics to discuss private companies as a job arena for social workers. We argue that in a sector aiming at profit, social workers may trigger off employees enthusiasm, but employer scepticism. However, by avoiding a less stereotyped notion of private companies, company welfare and social work we claim that certain social work ethical principles would be of joint interest to the involved, but more so in certain contexts than in others.The article consists of six sections. After the introduction, we take a closer look at company welfare followed by a section on social work where we focus on ethical principles and work arenas for social workers. In section four we present our data from some private companies in Norway and Tanzania as a point of departure to our discussion in section five on private companies as a potential job arena for social workers. The complexity of company welfare does not call for simple answers. In the conclusions, section six, we therefore argue that the ethical principles of social work make it an interesting and relevant competence in managing company welfare, though not unproblematic in the homeland of profit. However, contextual complexity invites contextual responses.

  1. Integrated Environmental- and Working Environmental Activity in Danish Companies

    DEFF Research Database (Denmark)

    Pedersen, Elsebet Frydendal

    1998-01-01

    Description of in situ observations and consultive interactions in relation to environmental and workingenvironmental activities in a small Danish family owned company in a rual area. The procuction is cleaning of steel and plastic barrels.......Description of in situ observations and consultive interactions in relation to environmental and workingenvironmental activities in a small Danish family owned company in a rual area. The procuction is cleaning of steel and plastic barrels....

  2. Perceptions of work environment priorities: Are there any differences by company size? An ecological study.

    Science.gov (United States)

    Nordlöf, Hasse; Wijk, Katarina; Westergren, Karl-Erik

    2015-01-01

    Earlier studies suggest that the quality of handling occupational health and safety (OHS) activities differs between companies of different sizes. Company size is a proxy variable for other variables affecting OHS performance. The objective of this study was to investigate if there is an association between company size and perceptions of work environment prioritizations. Data from 106 small- and medium-sized Swedish manufacturing companies was collected. One manager and one safety delegate at each company rated different aspects of their companies' work environment prioritizations with a 43-item questionnaire. Ratings were aggregated to a summary statistic for each company before analysis. No significant differences in perceptions of priority were found to be associated with company sizes. This is in contrast to earlier studies of objective differences. The respondents in small companies, however, showed significantly greater consensus in their ratings. Company size does not appear to be associated with perceptions of work environment prioritizations. Company size is an important proxy variable to study in order to understand what factors enable and obstruct safe and healthy workplaces. The work presented here should be viewed as an initial exploration to serve as direction for future academic work.

  3. A Qualitative Study of Knowledge Exchange in an Indonesian Machine-Making Company (P.75-92

    Directory of Open Access Journals (Sweden)

    Indria Handoko

    2017-02-01

    Full Text Available In a supply chain, company’s ability to leverage knowledge that resides within the network of contracted and interacting firms is able to improve not only company performance but also the supply chain effectiveness as a whole. However, existing supply chain studies mostly discuss knowledge at company level, and rarely at internal-hierarchical levels. As a result, many things remain concealed, for example, how knowledge exchange between people across levels in a supply chain is influenced by the supply chain government. Moreover, most exsisting studies focus on a rigid hierarchical supply-chain mechanism, and hardly elaborate how  interactions in a less-rigid mechanism. This article attempts to address these gaps, discussing how a supplier company that deals with innovation generation activities acquires knowledge that resides in its supply chain network. A qualitative case study about an Indonesian machine-making company has been chosen to represent one of supplier types in the automotive industry that deals with less-rigid mechanism. A social capital perspective is applied to shed light on how interactions between actors in a supply chain network influence knowledge exchange. The study finds out a positive relationship between social capital and knowledge exchange across levels and functions to help generate innovations, allowing the company to manage conflicting effect beliefs more effectively. The study also identifies a tendency of the company to regard intensive knowledge exchange as part of organizational learning process. Keywords: social capital, knowledge exchange supply chain, qualitative study

  4. WORKING CAPITAL MANAGEMENT, PROFITABILITY AND RISK – ANALYSE OF COMPANIES LISTED ON THE WARSAW STOCK EXCHANGE

    OpenAIRE

    Bolek, Monika

    2014-01-01

    This paper presents the problem of working capital management, profitability and risk represented by working capital strategy. According to the theory the more working capital is engaged in the company resulting in higher liquidity the lower the profitability and risk connected to the liquidity. On the other hand we can expect that the lower the working capital level and hence the liquidity the higher the profitability and risk., The author decided to test companies listed on the Warsaw Stock...

  5. Health and safety at work in foundry companies

    Directory of Open Access Journals (Sweden)

    L. Wojtynek

    2011-07-01

    Full Text Available The article presents the identification and analysis of threats in the environment of the foundry at individual stages of the casts manufacturing process. A generalized model of the foundry was created in the system presentation including harmful and dangerous factors in the foundry technical workplace. This model can refer to an iron foundry and cast steel and small non-ferrous foundries, to modern foundries, with automatic moulding lines and to chill and pressure foundries where machines execute the majority of essential operations.

  6. SETTING OF TASK OF OPTIMIZATION OF THE ACTIVITY OF A MACHINE-BUILDING CLUSTER COMPANY

    Directory of Open Access Journals (Sweden)

    A. V. Romanenko

    2014-01-01

    Full Text Available The work is dedicated to the development of methodological approaches to the management of machine-building enterprise on the basis of cost reduction, optimization of the portfolio of orders and capacity utilization in the process of operational management. Evaluation of economic efficiency of such economic entities of the real sector of the economy is determined, including the timing of orders, which depend on the issues of building a production facility, maintenance of fixed assets and maintain them at a given level. Formulated key components of economic-mathematical model of industrial activity and is defined as the optimization criterion. As proposed formula accumulating profits due to production capacity and technology to produce products current direct variable costs, the amount of property tax and expenses appearing as a result of manifestations of variance when performing replacement of production tasks for a single period of time. The main component of the optimization of the production activity of the enterprise on the basis of this criterion is the vector of direct variable costs. It depends on the number of types of products in the current portfolio of orders, production schedules production, the normative time for the release of a particular product available Fund time efficient production positions, the current valuation for certain groups of technological operations and the current priority of operations for the degree of readiness performed internal orders. Modeling of industrial activity based on the proposed provisions would allow the enterprises of machine-building cluster, active innovation, improve the efficient use of available production resources by optimizing current operations at the high uncertainty of the magnitude of the demand planning and carrying out maintenance and routine repairs.

  7. How can context affect what strategies are effective in improving the working environment in small companies?

    DEFF Research Database (Denmark)

    Antonsson, Ann-Beth; Hasle, Peter

    2015-01-01

    working environment in small asbestos stripping companies and cleaning companies. Another example shows how integration with other areas such as the importance to avoid not only exposure to flour dust in bakeries but also to avoid spreading of flour dust in order to avoid the growth of bugs in bakeries...

  8. The 10 Million Best Companies to Work for in America.

    Science.gov (United States)

    Stamps, David

    1997-01-01

    The balancing act between work and life away from work has gotten so complicated that few are able to pull it off. Employers are blurring the lines between the two by offering day care for aged parents or children and flexible scheduling that allows some to work at home. (JOW)

  9. Taxonomy of Manufacturing Flexibility at Manufacturing Companies Using Imperialist Competitive Algorithms, Support Vector Machines and Hierarchical Cluster Analysis

    Directory of Open Access Journals (Sweden)

    M. Khoobiyan

    2017-04-01

    Full Text Available Manufacturing flexibility is a multidimensional concept and manufacturing companies act differently in using these dimensions. The purpose of this study is to investigate taxonomy and identify dominant groups of manufacturing flexibility. Dimensions of manufacturing flexibility are extracted by content analysis of literature and expert judgements. Manufacturing flexibility was measured by using a questionnaire developed to survey managers of manufacturing companies. The sample size was set at 379. To identify dominant groups of flexibility based on dimensions of flexibility determined, Hierarchical Cluster Analysis (HCA, Imperialist Competitive Algorithms (ICAs and Support Vector Machines (SVMs were used by cluster validity indices. The best algorithm for clustering was SVMs with three clusters, designated as leading delivery-based flexibility, frugal flexibility and sufficient plan-based flexibility.

  10. Machine Selection in A Dairy Product Company with Entropy and SAW Method Integration

    Directory of Open Access Journals (Sweden)

    Aşkın Özdağoğlu

    2017-07-01

    Full Text Available Machine selection is an important and difficult process for the firms, and its results may generate more problems than anticipated. In order to find the best alternative, managers should define the requirements of the factory and determine the necessary criteria. On the other hand, the decision making criteria in order to choose the right equipment may vary according to the type of the manufacturing facility, market requirements, and consumer assigned criteria. This study aims to find the best machine alternative  among  the three machine offerings according to twelve evaluation criteria by integrating entropy method with SAW method.

  11. THE EVALUATION OF WORKING CAPITAL IN AIRLINE COMPANIES WHICH PROCEED IN BIST

    Directory of Open Access Journals (Sweden)

    Selcuk Kendirli

    2016-03-01

    Full Text Available The working capital like cash and liquid assets runs the facilities and supports daily activities of firms. This kind of capital is essential to continuity of activities, increase of volume, maintain credibility, reduce impacts of risks and to overcome with extraordinary situation. The working capital management is very important for making profits from activities, especially for dynamic sectors like aviation. The aviation industry which airline companies operate is a very dynamic sector. In this sector working capital has to be managed very professionally and carefully by airline companies. This study aims to assess the airline companies’ working capital in terms of effectiveness. Airline companies which shares traded on BIST will be sample of this study.

  12. CPS Modeling of CNC Machine Tool Work Processes Using an Instruction-Domain Based Approach

    Directory of Open Access Journals (Sweden)

    Jihong Chen

    2015-06-01

    Full Text Available Building cyber-physical system (CPS models of machine tools is a key technology for intelligent manufacturing. The massive electronic data from a computer numerical control (CNC system during the work processes of a CNC machine tool is the main source of the big data on which a CPS model is established. In this work-process model, a method based on instruction domain is applied to analyze the electronic big data, and a quantitative description of the numerical control (NC processes is built according to the G code of the processes. Utilizing the instruction domain, a work-process CPS model is established on the basis of the accurate, real-time mapping of the manufacturing tasks, resources, and status of the CNC machine tool. Using such models, case studies are conducted on intelligent-machining applications, such as the optimization of NC processing parameters and the health assurance of CNC machine tools.

  13. What kind of knowledge do small companies need to improve their working environment?

    DEFF Research Database (Denmark)

    Antonsson, Ann-Beth; Hasle, Peter

    2015-01-01

    Background One of the main obstacles identified for small companies´ improvement of the working environment is lack of knowledge. Aim To discuss what kind of knowledge is required by small companies if they are to be able to improve their working environment and the pros and cons of different kinds...... with providing different kinds of knowledge will be discussed from a theoretical point of view. This question will be further scrutinized in the project SESAME, which aims at developing strategies to improve the working environment in SME:s....

  14. [Analysis of relationship between shift-work and occupational stress among workers from different companies].

    Science.gov (United States)

    Gu, Guizhen; Yu, Shanfa; Zhou, Wenhui; Wu, Hui

    2016-01-01

    To investigate the relationship between work in shifts and occupational stress. A total of 5338 employees from 13 companies were investigated by cluster sampling, and occupational stress measuring tools, job content questionnaire, and effort-reward imbalance questionnaire were used to investigate occupational stress factors, stress reaction, and the condition of work in shifts. The employees who worked in shifts accounted for 46.6%. The condition of work in shifts varied significantly across different companies, employees with different individual features (including sex, job title, degree of education, age, working years, smoking, and drinking), and employees with different weekly working times(Pwork in shifts(Pwork in shifts, those who worked in shifts had significantly lower scores of technology utilization, work control level, psychological need, reward, social support, and job satisfaction(PWork in shifts can affect health status, and is associated with occupational stress.

  15. Assignment of personnel to work in Switzerland by companies from the European Union / EFTA(1)

    CERN Document Server

    DG Unit

    2011-01-01

    Before performing any services at CERN, companies not established in Switzerland are required under the Swiss legislation in force to make a declaration to the Swiss Federal Office for Migration or to obtain work permits from the Geneva authorities for the employees they intend to assign to work on the Swiss part of the CERN Site. At the request of the Swiss authorities, CERN cannot register employees to whom this legislation applies except in the following circumstances: Case No. 1: Work lasting less than 90 days in the case of companies from the EU-25/EFTA; Case No. 2: Work lasting less than 90 days in the case of EU-2 companies (Bulgaria and Romania); Case No. 3: Work lasting more than 90 days in the case of companies from the EU-27/EFTA. In case No. 1, an attestation d’annonce (declaration certificate) must be obtained. The declaration must be made via the Internet, using the official declaration form, at least 8 days before the start of the services. It is required only if the company pe...

  16. Utilization of contribution margin in the costing system in production of components for wood working machines

    Directory of Open Access Journals (Sweden)

    Marek Potkány

    2009-06-01

    Full Text Available The aim of this paper is to propose optimization of costing method for planning a production-sales programme of the chosen engineering enterprise dealing with the production of components for wood working machines. This engineering company uses the calculation pattern methodology in the comprehensive cost accounting system. All costs components are absorbed by individual outputs in this cost calculation. The results of this calculation are not available for decision-making tasks. In order to solve the decision tasks relating to output assortment optimization, it is necessary to show separately variable costs influenced by changes in production volume and fixed costs not influenced by changes in production volume. For these reasons we propose a specific application of retrograde costing as a necessary condition for effective system of decision-making on the basis of contribution margin calculation. The contribution margin/standard hour is the criteria for the calculation in a critical place of production and this is very important information for developing an optimal production-sales programme.

  17. Managing Efficiency and Profitability Through Working Capital: an Empirical Analysis of BSE 200 Companies

    Directory of Open Access Journals (Sweden)

    Harsh Vineet Kaur

    2013-04-01

    Full Text Available Efficient management of working capital helps to avoid financial crises, thereby, increasing the profitability and enhances the firm value. The present study analyses the working capital performance of 164 manufacturing BSE 200 companies classified into 19 industries over the period of 2000-2010 based on working capital score calculated by using normalised values of Cash Conversion Efficiency, Days Operating Cycle and Days Working Capital. The study explores abundant scope to increase the efficiency of 145 companies by improving the parameters of analysis. The improvements are bound to generate increased profits and profitability of leading corporate of India. The study tests the relationship between the working capital score and profitability measured by Income to Current Assets and Income to Average Total Assets. The results of the study support earlier studies revealing that efficient management of working capital significantly affects profitability.

  18. Leadership, organization and health at work: a case study of a Swedish industrial company.

    Science.gov (United States)

    Eriksson, Andrea; Jansson, Bjarne; Haglund, Bo J A; Axelsson, Runo

    2008-06-01

    The application of knowledge on organization and leadership is important for the promotion of health at workplace. The purpose of this article is to analyse the leadership and organization, including the organizational culture, of a Swedish industrial company in relation to the health of the employees. The leadership in this company has been oriented towards developing and actively promoting a culture and a structure of organization where the employees have a high degree of control over their work situation. According to the employees, this means extensive possibilities for personal development and responsibility, as well as good companionship, which makes them feel well at work. This is also supported by the low sickness rate of the company. The results indicate that the leadership and organization of this company may have been conducive to the health of the employees interviewed. However, the culture of personal responsibility and the structure of self-managed teams seemed to suit only those who were able to manage the demands of the company and adapt to that kind of organization. Therefore, the findings indicate that the specific context of the technology, the environment and the professional level of the employees need to be taken into consideration when analysing the relation between leadership, organization and health at work.

  19. Assignment of personnel to work in Switzerland by companies from the European Union / EFTA(1)

    CERN Document Server

    DG Unit

    2011-01-01

      *** Obsolete information ***     Before performing any services at CERN, companies not established in Switzerland are required under the Swiss legislation in force to make a declaration to the Swiss Federal Office for Migration or to obtain work permits from the Geneva authorities for the employees they intend to assign to work on the Swiss part of the CERN Site. At the request of the Swiss authorities, CERN cannot register employees to whom this legislation applies except in the following circumstances: Case No. 1: Work lasting less than 90 days in the case of companies from the EU-25/EFTA; Case No. 2: Work lasting less than 90 days in the case of EU-2 companies (Bulgaria and Romania); Case No. 3: Work lasting more than 90 days in the case of companies from the EU-27/EFTA. In case No. 1, an attestation d’annonce (declaration certificate) must be obtained. The declaration must be made via the Internet, using the official declaration form, at le...

  20. Accidents at work and costs analysis: a field study in a large Italian company.

    Science.gov (United States)

    Battaglia, Massimo; Frey, Marco; Passetti, Emilio

    2014-01-01

    Accidents at work are still a heavy burden in social and economic terms, and action to improve health and safety standards at work offers great potential gains not only to employers, but also to individuals and society as a whole. However, companies often are not interested to measure the costs of accidents even if cost information may facilitate preventive occupational health and safety management initiatives. The field study, carried out in a large Italian company, illustrates technical and organisational aspects associated with the implementation of an accident costs analysis tool. The results indicate that the implementation (and the use) of the tool requires a considerable commitment by the company, that accident costs analysis should serve to reinforce the importance of health and safety prevention and that the economic dimension of accidents is substantial. The study also suggests practical ways to facilitate the implementation and the moral acceptance of the accounting technology.

  1. [Social companies and solidary economy: perspectives for the work inclusion of individuals with mental disorders].

    Science.gov (United States)

    Lussi, Isabela Aparecida de Oliveira; Pereira, Maria Alice Ornellas

    2011-04-01

    The psychiatric reform process requires the implementation of public policies that guarantee the work inclusion of individuals with mental disorders. To do this, work must be understood as a promoter of autonomy, emancipation and citizenship. The objective of this study is to reflect on the theoretical concepts related to social insertion through work, with the purpose of exploring the inclusion of individuals with mental disorders in the work market. The concepts social company and solidary economy where selected as fundamental for the study. In the social company, the subject is considered to be a social being, focusing on the development process towards emancipation. In solidary economy, the objective is to develop an economy that is more just, equal and solidary. Further discussions on these concepts should be developed to support the implementation of projects for social inclusion through work.

  2. Utilisation of Modeling, Stress Analysis, Kinematics Optimisation, and Hypothetical Estimation of Lifetime in the Design Process of Mobile Working Machines

    Science.gov (United States)

    Izrael, Gregor; Bukoveczky, Juraj; Gulan, Ladislav

    2011-12-01

    The contribution deals with several methods used in the construction process such as model creation, verification of technical parameters of the machine, and life estimation of the selected modules. Determination of life cycle for mobile working machines, and their carrying modules respectively by investigation and subsequent processing of results gained by service measurements. Machine life claimed by a producer is only relative, because life of these machines depends not only on the way of work on that particular machine but also the state of material which is manipulated by the machine and in great extent the operator, their observance of security regulations, and prescribed working conditions.

  3. Technique of performing construction works by machines with hybrid: manual and remote control

    Directory of Open Access Journals (Sweden)

    Sevryugina Nadezhda

    2017-01-01

    Full Text Available The article discusses issues dealing with efficiency of construction work mechanization. It offers a mathematical model for assessment of mutual influence between the members of the ‘construction site-machine-operator’ system triad, that can give a quantitative assessment of how the efficiency of a technological task varies with more comprehensive use of operational capacities of the machine, while lower effect that limiting parameters of production environment and technical condition of the machine have on the operator. The article contains a constructive remote control solution for upgrade of the base machine. It describes the conditions for using the machines with hybrid: manual and remote control at construction sites. There is also an imitation model of operator’s scanning pattern and data experimental research that prove the efficiency of remotely controlled technological operations. The article proves that lower psychological load on the operator and better comfort contribute to positive economic effect and higher quality of the construction process.

  4. The Influence of Work Adjustment of Malaysian Expatriate Executives in Malaysian Construction Companies Overseas

    Directory of Open Access Journals (Sweden)

    Zainol H.

    2014-01-01

    Full Text Available The development of Malaysia’s economy gives the opportunities for companies to explore and operate overseas. A company has to ensure that the selected individuals are willing to work abroad, have high perseverance and always ready to meet challenges. The success of implementing the overseas assignment does not solely depend on technical expertise. It also depends on non-technical issues such as the ability to interact with colleagues at work, adaptability to the new environment and openness to the local culture. Past studies found 65% of the companies indicated that 5% of their expatriates returned prematurely from their assignment. This research, however, proved that non-technical factor such as work adjustment ought to be considered by the company. One of the non-technical factors that contribute to the failure is the expatriate’s inability to adapt to the new environment. This paper will also look into the factors that are faced by the expatriates during expatriation. The findings are obtained from empirical study and 64 respondents from Malaysian expatriate executives overseas. Suggestions and recommendations are given to improve the work adjustment of the expatriates.

  5. Radon in homes of the Portland, Oregon Area: Radon data from local radon testing companies collected by CRM (Continuous Radon Measurement) machines

    Science.gov (United States)

    Whitney, H.; Lindsey, K.; Linde, T.; Burns, S. F.

    2013-12-01

    Students from the Department of Geology at Portland State University paired up with the Oregon Health Authority to better understand radon gas values in homes of the Portland metropolitan area. This study focuses on radon values collected by continuous radon measurement (CRM) machines, taken by local radon testing companies. The local companies participating in this study include Alpha Environmental Services, Inc., Cascade Radon, Environmental Works, The House Detectives, LLC, and Soil Solutions Environmental Services, Inc. In total, 2491 radon readings spanning across 77 zip codes were collected from local companies in the Portland metropolitan area. The maximum value, average value, percentage of homes greater than 4 pCi/L and total rank sum was calculated and used to determine the overall radon potential for each zip code (Burns et al., 1998). A list and four maps were produced showing the results from each category. Out of the total records, 24 zip codes resulted in high radon potential and the average reading for the entire Portland Metropolitan area was 3.7 pCi/L. High potential zip codes are thought to be a result of sand and gravel (Missoula Flood deposits) and faults present in the subsurface. The CRM data was compared with both long-term and short-term data provided by the Oregon Health Authority to validate radon potentials in each zip code. If a home is located in a zip code with high or moderate radon potential across two types of data sets, it is recommended that those homes be tested for radon gas.

  6. Practices of corporate social responsibility and sustainable systems work in Peruvian companies issuing sustainability reports

    Directory of Open Access Journals (Sweden)

    María Angela Prialé

    2015-12-01

    Full Text Available Through a literature review, this exploratory study seeks to determine whether the practices related to its colaborators, who report as part of its action responsible Peruvian companies issuing sustainability reports can be considered sustainable management practices of human resources. To this end, it was used the approach of sustainable work systems as a general approach. It was found that some of the practices of responsible management of human resources that implement the analyzed companies address the human dimensions of sustainability, although not all dimensions are considered equally or similar depth.

  7. Employee preferences for work-life benefits in a large New Zealand construction company

    Directory of Open Access Journals (Sweden)

    Emily Morrison

    2012-02-01

    Full Text Available The construction industry is a challenging environment in which to work, with job characteristics that are linked to work-life conflict, and it is important for its future sustainability that initiatives to support employee work-life balance are undertaken. 121 head office and site-based employees within a large New Zealand construction company rated their preferences for work-life benefits, and the results were compared with those of a similar previous (Australian study. The most preferred work-life benefit factor (as for the previous Australian study was found to be ‘wellness and personal development’. Results suggest that company provision of a wide variety of work-life benefits from which employees can choose during different stages in their life and career is ideal. Qualitative results suggest some work-life conflict associated with working long hours and weekend work exists. It is proposed that to attract and retain valuable employees, the New Zealand construction industry must provide useful work-life benefits, reasonable working hours, and supportive workplace cultures in line with such initiatives. 

  8. Employee preferences for work-life benefits in a large New Zealand construction company

    Directory of Open Access Journals (Sweden)

    Emily Morrison

    2012-02-01

    Full Text Available The construction industry is a challenging environment in which to work, with job characteristics that are linked to work-life conflict, and it is important for its future sustainability that initiatives to support employee work-life balance are undertaken. 121 head office and site-based employees within a large New Zealand construction company rated their preferences for work-life benefits, and the results were compared with those of a similar previous (Australian study. The most preferred work-life benefit factor (as for the previous Australian study was found to be ‘wellness and personal development’. Results suggest that company provision of a wide variety of work-life benefits from which employees can choose during different stages in their life and career is ideal. Qualitative results suggest some work-life conflict associated with working long hours and weekend work exists. It is proposed that to attract and retain valuable employees, the New Zealand construction industry must provide useful work-life benefits, reasonable working hours, and supportive workplace cultures in line with such initiatives.

  9. Engaged work teams in healthy companies: drivers, processes, and outcomes of team work engagement

    OpenAIRE

    Torrente Barberà, Pedro

    2014-01-01

    This PhD thesis analyses work engagement in the context of work teams taking a collective, psychosocial perspective. Throughout this thesis, the following topics will be addressed: 1) the state-of-the-art in the topic of team work engagement, 2) the measurement of team work engagement, 3) the association of team work engagement with other relevant individual-level constructs and how it fits in traditional research models in the field of Positive Occupational Health Psychology, 4) the antecede...

  10. Effect of Quality of Work Life on Organizational Commitment by SEM (Case Study: OICO Company

    Directory of Open Access Journals (Sweden)

    Mohammad Reza Faghih Parvar

    2013-10-01

    Full Text Available Nowadays, according to the importance of human resources in advancing the goals of the organization, improving the quality of work life has become one of the main goals of the organizations. Main purpose of this study is to analyses the effect of quality of work life (adequate and fair compensation, safe and healthy environment, growth and security, development of human capabilities, the total life space, social integration, constitutionalism, social relevance on organizational commitment of employees of OICO company. Method of this study is path analyses with approach of SEM. Statistical society consists of all employees of OICO Company in SPGD 17 & 18 in year 2013 that are 130 people, out of this number, 97 people were selected through random sampling in proportion with society volume and questionnaires were distributed amongst them. The research results show a positive and significant effect of quality of work life on employee’s organizational commitment.

  11. [In-depth assessment of work-related stress in a major company undergoing restructuring].

    Science.gov (United States)

    Magrini, Andrea; Pelagalli, Maria Felicia; Pietroiusti, Antonio; Livigni, Lucilla; Guidi, Stefano; Moscatelli, Maurizia; Mascioli, Marco; D'Orsi, Fulvio; Zolla, Antonella; Bagnara, Sebastiano

    2015-07-08

    An in-depth assessment of work-related stress was conducted in a major national telecommunications company undergoing major changes. The assessment was made on three homogeneous groups of workers and covered a large representative sample of the corresponding populations. To identify the main sources of stress for the three populations of workers, stimulate a discussion on the possible corrective actions, and assess the impact of the on-going organizational changes on workers' health. The assessment started with an analysis of the objective stress indicators listed in the INAIL (National Insurance Institute for Occupational Diseases and Accidents) Checklist. This was followed by a combination of qualitative and quantitative investigations on work context and tasks and on the subjective perceptions of workers, which were carried out by using: semi-structured interviews with management, field observations of work tasks, focus groups and questionnaires (GHQ-12, HSE Indicator Tool, ad-hoc questionnaire). The assessment allowed identification of the critical areas to be addressed with specific interventions: relationship with the company, work performance, work organization, and equipment. the investigation allowed to identification of specific practical actions (improvement of technological tools; professional development through training courses) as well as strategic actions ( re-establish relationship of trust with the company) so as to mitigate the workers' level of stress. Analysis of the results also showed that the three targeted populations differed in the degree of acceptance and understanding of the organizational changes.

  12. Sewing machine operation : workstation adjustment, working posture, and workers’ perceptions

    NARCIS (Netherlands)

    Delleman, N.J.; Dul, J.

    2002-01-01

    At a traditional sewing machine workstation professional operators worked at ten different combined adjustments of table height, desk slope, and pedal position. Working posture and workers’ perceptions were measured. Two recommendations were formulated in order to minimize the load on the musculoske

  13. Biochemical Machines for the Interconversion of Mutual Information and Work

    Science.gov (United States)

    McGrath, Thomas; Jones, Nick S.; ten Wolde, Pieter Rein; Ouldridge, Thomas E.

    2017-01-01

    We propose a physically realizable information-driven device consisting of an enzyme in a chemical bath, interacting with pairs of molecules prepared in correlated states. These correlations persist without direct interaction and thus store free energy equal to the mutual information. The enzyme can harness this free energy, and that stored in the individual molecular states, to do chemical work. Alternatively, the enzyme can use the chemical driving to create mutual information. A modified system can function without external intervention, approaching biological systems more closely.

  14. Application of TPM indicators for analyzing work time of machines used in the pressure die casting

    Science.gov (United States)

    Borkowski, Stanisław; Czajkowska, Agnieszka; Stasiak-Betlejewska, Renata; Borade, Atul B.

    2014-05-01

    The article presents the application of total productive maintenance (TPM) to analyze the working time indicators of casting machines with particular emphasis on failures and unplanned downtime to reduce the proportion of emergency operation for preventive maintenance and diagnostics. The article presents that the influence of individual factors of complex machinery maintenance (TPM) is different and depends on the machines' modernity level. In an original way, by using correlation graphs, research findings on the impact of individual TPM factors on the castings quality were presented and interpreted. The examination results conducted for machines with varying modernity degrees allowed to determine changes within the impact of individual TPM factors depending on machine parameters. These results provide a rich source of information for the improvement processes on casting quality of the foundry industry that satisfies the automotive industry demand.

  15. Shift work and hypertension: Prevalence and analysis of disease pathways in a German car manufacturing company.

    Science.gov (United States)

    Ohlander, Johan; Keskin, Mekail-Cem; Stork, Joachim; Radon, Katja

    2015-05-01

    Hypertension and cardiovascular disease (CVD) may share a similar pathophysiology. Despite shift workers' CVD excess risk, studies on shift work and hypertension are inconclusive. Blood pressure and shift status for 25,343 autoworkers were obtained from medical check-ups and company registers. Cross-sectional associations modeling the total effect from shift work (day shifts, shift work without nights, rotating shift work with nights, and night shifts) on hypertension were assessed. By sequential adjustments, the influence of behavioral, psychosocial, and physiological factors on the total effect was examined, with subsequent mediation and moderation analyses. Adjusted for confounders, shift work without nights (vs. day shifts) was significantly associated with hypertension (OR 1.15, 95%CI 1.02-1.30). The total effect was mediated by BMI, physical inactivity, and sleep disorders. No moderation of the total effect by behaviors was found. The association between shift work and hypertension seems mainly attributable to behavioral mechanisms. © 2015 Wiley Periodicals, Inc.

  16. FLOW STRESS MODEL FOR HARD MACHINING OF AISI H13 WORK TOOL STEEL

    Institute of Scientific and Technical Information of China (English)

    H. Yan; J. Hua; R. Shivpuri

    2005-01-01

    An approach is presented to characterize the stress response of workpiece in hard machining,accounted for the effect of the initial workpiece hardness, temperature, strain and strain rate on flow stress. AISI H13 work tool steel was chosen to verify this methodology. The proposed flow stress model demonstrates a good agreement with data collected from published experiments.Therefore, the proposed model can be used to predict the corresponding flow stress-strain response of AISI H13 work tool steel with variation of the initial workpiece hardness in hard machining.

  17. Earth-moving equipment as base machines in forest work. Final report of an NSR project

    Energy Technology Data Exchange (ETDEWEB)

    Johansson, Jerry [ed.

    1997-12-31

    Excavators have been used for forest draining for a long time in the Nordic countries. Only during the 1980s they were introduced as base machines for other forest operations, such as mounding, processing, harvesting, and road construction and road maintenance. Backhoe loaders were introduced in forestry at a somewhat later stage and to a smaller degree. The number of this type of base machines in forestry is so far small and is increasing very slowly. The NSR project `Earth moving equipment as base machines in forest work` started in 1993 and the project ended in 1995. The objective of the project was to obtain an overall picture of this type of machines up to a point where the logs are at landing site, ready for transportation to the industry. The project should cover as many aspects as possible. In order to obtain this picture, the main project was divided into sub projects. The sub projects separately described in this volume are (1) Excavators in ditching operations and site preparation, (2) Backhoe loaders in harvesting operations, (3) Excavators in wood cutting operations, (4) Tracked excavators in forestry operations, (5) Crawler versus wheeled base machines for single-grip harvester, and (6) Soil changes - A comparison between a wheeled and a tracked forest machine

  18. Multicriteria ranking of workplaces regarding working conditions in a mining company.

    Science.gov (United States)

    Bogdanović, Dejan; Stanković, Vladimir; Urošević, Snežana; Stojanović, Miloš

    2016-12-01

    Ranking of workplaces with respect to working conditions is very significant for each company. It indicates the positions where employees are most exposed to adverse effects resulting from the working environment, which endangers their health. This article presents the results obtained for 12 different production workplaces in the copper mining and smelting complex RTB Bor - 'Veliki Krivelj' open pit, based on six parameters measured regularly which defined the following working environment conditions: air temperature, light, noise, dustiness, chemical hazards and vibrations. The ranking of workplaces has been performed by PROMETHEE/GAIA. Additional optimization of workplaces is done by PROMETHEE V with the given limits related to maximum permitted values for working environment parameters. The obtained results indicate that the most difficult workplace is on the excavation location (excavator operator). This method can be successfully used for solving similar kinds of problems, in order to improve working conditions.

  19. Company Policies on Working Hours and Night Work in Relation to Older Workers’ Work Ability and Work Engagement: Results From a Dutch Longitudinal Study with 2 Year Follow-Up

    NARCIS (Netherlands)

    Meer, L. van der; Leijten, F.R.; Heuvel, S.G. van den; Ybema, J.F.; Wind, A. de; Burdorf, A.; Geuskens, G.A.

    2016-01-01

    Purpose To longitudinally investigate (1) whether lower work ability and work engagement predict the use of company policies on reduced working hours and exemption from evening/night work among older workers, and (2) whether using such policies subsequently contribute to higher work ability and work

  20. Company Policies on Working Hours and Night Work in Relation to Older Workers’ Work Ability and Work Engagement: Results From a Dutch Longitudinal Study with 2 Year Follow-Up

    NARCIS (Netherlands)

    Meer, L. van der; Leijten, F.R.; Heuvel, S.G. van den; Ybema, J.F.; Wind, A. de; Burdorf, A.; Geuskens, G.A.

    2016-01-01

    Purpose To longitudinally investigate (1) whether lower work ability and work engagement predict the use of company policies on reduced working hours and exemption from evening/night work among older workers, and (2) whether using such policies subsequently contribute to higher work ability and work

  1. In stressful company – Changes in stress and work ties over time

    DEFF Research Database (Denmark)

    Waldstrøm, Christian; Parker, Andrew; Shah, Neha P.

    Recent research on stress and burnout has highlighted the collective aspects of stress symptoms, perceived stress, and coping mechanisms. Much of this work, however, is focused on group and team dynamics rather than how network factors shape individuals’ feelings of stress and burnout. We use...... a stress questionnaire and social network analysis at three time points in a Scandinavian biotechnology company to examine the interactions between stress and relationship development and maintenance over time. We show that individuals tend to form and maintain ties to people who are less stressed than...... they are, indicating that while misery might love company, stress does not. Given the longitudinal nature of the study, we’re able to disentangle the causal effects....

  2. Making War Work for Industry: The United Alkali Company's Central Laboratory During World War One.

    Science.gov (United States)

    Reed, Peter

    2015-02-01

    The creation of the Central Laboratory immediately after the United Alkali Company (UAC) was formed in 1890, by amalgamating the Leblanc alkali works in Britain, brought high expectations of repositioning the company by replacing its obsolete Leblanc process plant and expanding its range of chemical products. By 1914, UAC had struggled with few exceptions to adopt new technologies and processes and was still reliant on the Leblanc process. From 1914, the Government would rely heavily on its contribution to the war effort. As a major heavy-chemical manufacturer, UAC produced chemicals for explosives and warfare gases, while also trying to maintain production of many essential chemicals including fertilisers for homeland consumption. UAC's wartime effort was led by the Central Laboratory, working closely with the recently established Engineer's Department to develop new process pathways, build new plant, adapt existing plant, and produce the contracted quantities, all as quickly as possible to meet the changing battlefield demands. This article explores how wartime conditions and demands provided the stimulus for the Central Laboratory's crucial R&D work during World War One.

  3. Effect of working position on vertical motion straightness of open hydrostatic guideways in grinding machine

    Science.gov (United States)

    Zha, Jun; Wang, Zhiwei; Xue, Fei; Chen, Yaolong

    2016-08-01

    Hydrostatic guideways have various applications in precision machine tools due to their high motion accuracy. The analysis of motion straightness in hydrostatic guideways is generally ignoring the external load on the slider. A variation force also exists, caused by the different working positions, together with the dead load of the slider and that of other auxiliary devices. The effect of working position on vertical motion straightness is investigated based on the equivalent static model, considering the error averaging effort of pressured oil film in open hydrostatic guideways. Open hydrostatic guideways in LGF1000 are analyzed with this approach. The theoretical results show that the slider has maximum vertical motion straightness when the working position is closer the guiderail of Y axis. The vertical motion straightness reaches a minimum value as the working position is located at the center of the two guiderails on the Y axis. The difference between the maximum and minimum vertical motion straightness is 34.7%. The smaller vertical motion straightness is attributed to the smaller spacing of the two pads centers, along the Y direction. The experimental results show that the vertical motion straightness is 4.15 μm/1200 mm, when the working position is located in the middle of the X beam, and 5.08 μm/1200 mm, when the working position is approaching the Y guiderails, denoting an increase of 18.3%. The changing trends of the measured results validate the correctness of the theoretical model. The research work can be used to reveal the variation law of accuracy of the open hydrostatic guideways, under different working positions, to predict the machining precision, and provides the basis for an error compensation strategy for gantry type grinding machines.

  4. Effect of working position on vertical motion straightness of open hydrostatic guideways in grinding machine

    Science.gov (United States)

    Zha, Jun; Wang, Zhiwei; Xue, Fei; Chen, Yaolong

    2017-01-01

    Hydrostatic guideways have various applications in precision machine tools due to their high motion accuracy. The analysis of motion straightness in hydrostatic guideways is generally ignoring the external load on the slider. A variation force also exists, caused by the different working positions, together with the dead load of the slider and that of other auxiliary devices. The effect of working position on vertical motion straightness is investigated based on the equivalent static model, considering the error averaging effort of pressured oil film in open hydrostatic guideways. Open hydrostatic guideways in LGF1000 are analyzed with this approach. The theoretical results show that the slider has maximum vertical motion straightness when the working position is closer the guiderail of Y axis. The vertical motion straightness reaches a minimum value as the working position is located at the center of the two guiderails on the Y axis. The difference between the maximum and minimum vertical motion straightness is 34.7%. The smaller vertical motion straightness is attributed to the smaller spacing of the two pads centers, along the Y direction. The experimental results show that the vertical motion straightness is 4.15 μm/1200 mm, when the working position is located in the middle of the X beam, and 5.08 μm/1200 mm, when the working position is approaching the Y guiderails, denoting an increase of 18.3%. The changing trends of the measured results validate the correctness of the theoretical model. The research work can be used to reveal the variation law of accuracy of the open hydrostatic guideways, under different working positions, to predict the machining precision, and provides the basis for an error compensation strategy for gantry type grinding machines.

  5. Static and modal analyzing for the working table components of a machining center in ANSYS

    Institute of Scientific and Technical Information of China (English)

    XIA Lian; HU Chunyang; HAN Jiang

    2012-01-01

    In this paper, modal analysis theory, equivalent dynamic model of the joint surface of assembly and identification methods of joint surface parameters are the main theories. Static and modal analysis of the working table components of the FM6324 machining center is done. The three-dimensional model of the working table components is established using Pro E at first, then static characteristics is obtained through ANSYS contact analysis; finally, the dynamic model is established in ANSYS, and its dynamic characteristics is obtained through ANSYS modal analysis.

  6. Predicting Freeway Work Zone Delays and Costs with a Hybrid Machine-Learning Model

    Directory of Open Access Journals (Sweden)

    Bo Du

    2017-01-01

    Full Text Available A hybrid machine-learning model, integrating an artificial neural network (ANN and a support vector machine (SVM model, is developed to predict spatiotemporal delays, subject to road geometry, number of lane closures, and work zone duration in different periods of a day and in the days of a week. The model is very user friendly, allowing the least inputs from the users. With that the delays caused by a work zone on any location of a New Jersey freeway can be predicted. To this end, tremendous amounts of data from different sources were collected to establish the relationship between the model inputs and outputs. A comparative analysis was conducted, and results indicate that the proposed model outperforms others in terms of the least root mean square error (RMSE. The proposed hybrid model can be used to calculate contractor penalty in terms of cost overruns as well as incentive reward schedule in case of early work competition. Additionally, it can assist work zone planners in determining the best start and end times of a work zone for developing and evaluating traffic mitigation and management plans.

  7. MACHINABILTY OF SLEIPNER COLD WORK STEEL WITH WIRE ELECTRO DISCHARGE MACHINING

    Directory of Open Access Journals (Sweden)

    Iskender OZKUL

    2013-01-01

    Full Text Available Machining techniques in the industry generally, modern processing techniques, that come between wire discharging machine, especially mold, defense, aircraft and aerospace industry, is often used. Processing, which is difficult with conventional manufacturing methods, the complex surface forms, the different material types, hard and is capable of handling high dimensional accuracy and surface roughness [1]. This manufacturing technique were carried on Uddeholm Sleipner cold-work tool steel, variable parameters with On time duration, feed rate, and the current value, as fixed parameters off time duration, voltage, pressure of fluid circulation, velocity of wire, wire tension and wire diameter. Surface roughness of the surface was shown changes as a result of the experimental parameters, diameter and circularity deviation values were studied.

  8. From ergonomics to design specifications: contributions to the design of a processing machine in a tire company.

    Science.gov (United States)

    Moraes, A S P; Arezes, P M; Vasconcelos, R

    2012-01-01

    The development of ergonomics' recommendations, guidelines and standards are attempts to promote the integration of ergonomics into industrial contexts. Such developments result from several sources and professionals and represent the effort that has been done to develop healthier and safer work environments. However, the availability of large amount of data and documents regarding ergonomics does not guarantee their applicability. The main goal of this paper is to use a specific case to demonstrate how ergonomics criteria were developed in order to contribute to the design of workplaces. Based on the obtained results from research undertaken in a tire company, it was observed that the ergonomics criteria should be presented as design specifications in order to be used by engineers and designers. In conclusion, it is observed that the multiple constraint environment impeded the appliance of the ergonomics criteria. It was also observed that the knowledge on technical design and the acquaintance with ergonomic standards, the level of integration in the design team, and the ability to communicate with workers and other technical staff have paramount importance in integrating ergonomics criteria into the design process.

  9. Predictive Models of Work-Related Musculoskeletal Disorders (WMSDs Among Sewing Machine Operators in the Garments Industry

    Directory of Open Access Journals (Sweden)

    Carlos Ignacio P. Lugay

    2015-02-01

    Full Text Available The Philippine garments industry has been a driving force in the country’s economy, with apparel manufacturing firms catering to the local and global markets and providing employment opportunities for skilled Filipinos. Tight competition from neighboring Asian countries however, has made the industry’s situation difficult to flourish, especially in the wake of the Association of Southeast Asian Nations (ASEAN 2015 Integration. To assist the industry, this research examined one of the more common problems among sewing machine operators, termed as Work-related Musculoskeletal Disorders (WMSDs. These disorders are reflective in the frequency and severity of the pain experienced by the sewers while accomplishing their tasks. The causes of these disorders were identified and were correlated with the frequency and severity of pain in various body areas of the operator. To forecast pain from WMSDs among the operators, mathematical models were developed to predict the combined frequency and severity of the pain from WMSDs. Loss time or “unofficial breaktimes” due to pain from WMSDs was likewise forecasted to determine its effects on the firm’s production capacity. Both these predictive models were developed in order to assist garment companies in anticipating better the effects of WMSDs and loss time in their operations. Moreover, ergonomic interventions were suggested to minimize pain from WMSDs, with the expectation of increased productivity of the operators and improved quality of their outputs.

  10. OVERVIEW OF WORK PIECE TEMPERATURE MEASUREMENT TECHNIQUES FOR MACHINING OF Ti6Al4V#

    Directory of Open Access Journals (Sweden)

    P.J.T. Conradie

    2012-01-01

    Full Text Available

    ENGLISH ABSTRACT: Ti6Al4V is one of the most widely used titanium alloys in aerospace applications, but its machining remains a challenge. Comprehensive research has been done in the past, mainly investigating tool failure of various materials. Less research has been done to investigate the thermal effect of machining on work piece quality, including fatigue performance. Temperature measurement is considered to be a key enabling technology. This study presents an overview of current temperature measurement techniques for machined and tool surfaces. Two categories of methods were investigated: slower contact, and faster optical methods. Optical fibre two colour pyrometry experiments are reported that demonstrate the technique’s adequate response time. The infrared camera temperature measurement experiments synchronised temperature measurement with visual observation, aimed at mechanism analysis. The results corresponded with the literature.

    AFRIKAANSE OPSOMMING: Ti6Al4V is een van die mees gewilde lugvaart allooie, maar sy masjinering is ’n uitdaging. Bestaande navorsing dek beitelslytasie omvattend. Die termiese effek van masjinering op werkstuk integriteit, insluitend vermoeiingleeftyd, het egter veel minder dekking geniet. Temperatuurmeting wat in hierdie studie ondersoek word, word as ’n sleuteltegnologie beskou. Twee kategorië metodes is ondersoek, nl stadige kontakmetodes en optiese metodes met vinnige respons, wat die meting van oorgangsverskynsels moontlik maak. Eksperimentele werk wat beide optiese vesel tweekleurpirometrie en termiese kamera tegnieke insluit bewys die tegnieke as geskik vir die benodigde navorsing.

  11. Specific Features of Chip Making and Work-piece Surface Layer Formation in Machining Thermal Coatings

    Directory of Open Access Journals (Sweden)

    V. M. Yaroslavtsev

    2016-01-01

    of chip element formation are cycled. Fluctuations of the cutting force components completely repeat all the stages of local destruction and formation of individual chip elements. Studies have shown that with increased thickness of the cut-off layer the main crack develops below the cut-off line thus significantly affecting the quality of the machined surface: emerging cracks, cavities, chips, and other defects that significantly reduce the product performance.In machining the plasma-sprayed coatings, their high tendency to strengthening and rehardening because of the cutting action has a great impact on the surface quality. This is evident as a loss of the elastic equilibrium state stability and as a destruction of the work-piece surface layer (chipping, peeling, flaking. With increasing curvature of the machined surface (e.g., decreasing radius of cylindrical billet the surface layer is increasingly prone to destruction.Specific problems are cutting fluids used in grinding the plasma-sprayed coatings. Machining in this case comes with saturated liquid vapours formed in the surface layer of a billet under high pressure. With a pressure drop on the tool-side in cutting there is such an intensity of vaporization that micro- and macro-fractures of the machined work-piece surface can be initiated.

  12. ANALYSIS OF WORKING CAPITAL MANAGEMENT OF LEADING COMPANIES IN THE HUNGARIAN DAIRY SECTOR BETWEEN 2008 AND 2012

    Directory of Open Access Journals (Sweden)

    Dorisz Talas

    2014-07-01

    Full Text Available This study analyses trends in the working capital management of those Hungarian dairy companies that feature the highest levels of sales revenues in the domestic market and diversified product structures. In view of the significance of food industry in the national economy, a particularly important question to examine in this context is to see what impacts the economic crisis has had on the business operations of the dominant companies of the sector, what processes it has triggered in working capital management. In 2012, 44 of the 500 companies with the largest amounts of sales were operating in the food processing sector. Within the group of these 44 enterprises, dairy companies had an 11% share. On the other hand, 82% of the total sales revenues of the dairy industry was given by the 15 companies where the individual amounts of registered capital are over HUF 250 million, which reflects a strong sales revenue concentration. Therefore, it has been an interesting aspect to study how in such a concentrated sector the leading companies shape their working capital management, what processes can be observed in this respect. This study has relied on the annual reports, i.e. the balance sheets and profit & loss accounts of the companies for the fiscal period of 2008–2012. The research methodology of the analysis is based on the review of financial indicators internationally accepted and used in connection with working capital management. Moreover, the study determines a cash conversion cycle, and in this context the inventory and receivables turnover, as well as the payables turnover. It has been assessed what changes the above-mentioned indicators of the competitors belonging to the target group of analysis have undergone, if there has been a general tendency of changes to be identified. For outstanding values it has been analysed what the large-scale changes could have been caused by. Fundamentally, I have aspired to reveal whether there has been

  13. Sources and effects of work-related stress among employees in foreign-owned manufacturing companies in Ogun state, Nigeria

    Directory of Open Access Journals (Sweden)

    Ajibade David

    2016-12-01

    Full Text Available This study investigates the sources and effects of work-related stress among employees in foreign owned manufacturing companies in Ogun State, Nigeria. The study used cross sectional descriptive design and a total of three hundred and two (302 respondents were selected using stratified random sampling technique from five randomly selected foreign-owned manufacturing companies. Data were collected using questionnaire and statistically analysed using frequencies, percentages and weighted means. The study reveals factors such as unfavourable physical working conditions, job insecurity, poor career development, and long working hours fostering stress on employees in the sampled companies. The study further reveals that respondents suffered consequences such as restlessness, anxiety and nervous indigestion, headache, neck ache, and inability to concentrate. This study however has implication for management of foreign-owned manufacturing organization. Based on this, appropriate recommendations were made application of which will help to ensure enabling workplace environment and thus reduce the effects of stress on employees.

  14. An Overwhelming Climb: The Complexities of Combining College, Full-Time Work, and Company Tuition Assistance

    Science.gov (United States)

    Gagnon, Janelle L.; Packard, Becky Wai-Ling

    2012-01-01

    This paper examines the complex experiences of full-time employed adults trying to climb the career ladder in their company by making use of company tuition assistance to earn their first college degree. Guided by Savickas' (2005) career construction theory, emphasizing the personal agency and meaning-making within career development, we conducted…

  15. Analysis of satisfaction of final consumers: a study in a company of Vending Machines sector in the city of Santa Maria – RS

    Directory of Open Access Journals (Sweden)

    Maíra Nunes Piveta

    2016-06-01

    Full Text Available Organizations are inserted in a globalized competitive environment that suffers transformations and constantly advances. Given this scenario, the Alpha company, which sells coffee vending machines and supplies, adopted as a strategy to approach their final consumers. In this way, the overall objective of this study was to identify and assess the degree of satisfaction of the consumers of Alpha company with respect to the products and drinks and digital marketing in social media. The search can be classified as descriptive as to the nature with quantitative approach through the implementation of a research tool with a sample of 120 consumers of Alpha company at the points of sale. The survey results indicated that, in general, the satisfaction of consumers for products Alpha is great, except when it comes to price and quantity of sugar. Still, it was observed that the scope of the actions of Alpha digital marketing is low, being evidenced by means of low degrees of satisfaction justified by lack of consumer knowledge. Finally, opportunities and suggestions for improvement were presented.

  16. Company Policies on Working Hours and Night Work in Relation to Older Workers' Work Ability and Work Engagement: Results From a Dutch Longitudinal Study with 2 Year Follow-Up.

    Science.gov (United States)

    van der Meer, Laudry; Leijten, Fenna R M; Heuvel, Swenneke G; Ybema, Jan F; de Wind, Astrid; Burdorf, Alex; Geuskens, Goedele A

    2016-06-01

    Purpose To longitudinally investigate (1) whether lower work ability and work engagement predict the use of company policies on reduced working hours and exemption from evening/night work among older workers, and (2) whether using such policies subsequently contribute to higher work ability and work engagement. Methods In total 6922 employees (45-64 years) participating in the first three waves of the Study on Transitions in Employment, Ability and Motivation were included. Participants yearly filled out an online questionnaires. Regression analyses were applied to study the influence of baseline work ability and work engagement on the incident use of policies during the first year of follow-up, and the incident use of these policies on work ability and work engagement during the second year of follow-up. Results Employees with a higher work ability were less likely to start using the policy 'reduced working hours' [OR 0.91 (95 % CI 0.83-0.98)]. Starting to use this policy was in turn related to lower work ability 1 year later [B -0.28 (95 % CI -0.47 to -0.08)]. Starting to use the policy 'exemption from evening/night work' was related to higher work engagement 1 year later [B 0.23 (95 % CI 0.07-0.39)]. Conclusions Low work ability precedes the use of some company policies aiming to support sustainable employability of older workers. Further research is needed to explore whether company policies result in a (longstanding) improvement, or reduced deterioration, of older workers' employability.

  17. Accidents at Work and Costs Analysis: A Field Study in a Large Italian Company

    National Research Council Canada - National Science Library

    BATTAGLIA, Massimo; FREY, Marco; PASSETTI, Emilio

    2014-01-01

    ... to individuals and society as a whole. However, companies often are not interested to measure the costs of accidents even if cost information may facilitate preventive occupational health and safety management initiatives...

  18. ONBOARD MONITORING OF ENGINE OIL RESOURCE WORKING-OUT RATE IN WHEELED AND CATERPILLAR MACHINES

    Directory of Open Access Journals (Sweden)

    Yu. D. Karpievich

    2014-01-01

    Full Text Available An engine oil is capable reliably and longtime to perform specified functions only in the case when its properties correspond to those thermal, mechanical and chemical impacts to which the oil is subjected in the engine. Compatibility of the engine design, its uprate and oil properties is one of the main conditions for provision of high operational reliability. Type and properties of fuel, quality of an engine oil, engine type, its design, its health, its operational regime and conditions and a number of other factors influence on intensity of oil contamination in the operated engine. Oil quality is deteriorated due to accumulation of incomplete combustion products in it and this process is associated with the engine's health. This leads to reduction of viscosity, deterioration of lubrication ability, troubles in fluid friction mode. Combustion products have rather high amount of aggressive corrosive oxides.Service-life of engine oil prior to its change is determined not only by automobile mileage or tractor operating time but also by the period of time within which this work has been carried out. Corrosion processes are speeding up, protective processes are worsening, oil ageing is accelerating when vehicles have short daily and small mileages. So it is necessary to change oil at least annually.A new method for onboard monitoring of engine oil resource working-out rate in wheeled and caterpillar machines has been developed in the paper. Usage of fuel expended volume by engine while determining engine oil resource working-out rate makes it possible timely to assess a residual resource of the engine oil and also predict the date of its change at any operational period of wheeled and caterpillar machines.

  19. Measurement of the accuracy of dental working casts using a coordinate measuring machine

    Directory of Open Access Journals (Sweden)

    Potran Michal

    2016-01-01

    Full Text Available Background/Aim: Dental impressions present a negative imprint of intraoral tissues of a patient which is, by pouring in gypsum, transferred extraorally on the working cast. Casting an accurate and precise working cast presents the first and very important step, since each of the following stages contributes to the overall error of the production process, which can lead to inadequately fitting dental restorations. The aim of this study was to promote and test a new model and technique for in vitro evaluation of the dental impression accuracy, as well as to asses the dimensional stability of impression material depending on the material bulk, and its effect on the accuracy of working casts. Methods. Impressions were made by the monophasic technique using the experimental master model. Custom trays with spacing of 1, 2 and 3 mm were constructed by rapid prototyping. The overall of 10 impressions were made with each custom tray. Working casts were made with gypsum type IV. Measurement of working casts was done 24 h later using a co-ordinate measuring machine. Results. The obtained results show that the working casts of all the three custom trays were in most cases significantly different in the transversal and sagittal planes in relation to the master model. The height of abutments was mainly unaffected. The degree of convergence showed certain significance in all the three custom trays, most pronounced in the tray with 3 mm spacing. Conclusion. The impression material bulk of 1–3 mm could provide accurate working casts when using the monophasic impression technique. The increase of the distance between abutment teeth influences the accuracy of working casts depending on the material bulk. [Projekat Ministarstva nauke Republike Srbije, br. TR 35020: Research and development of modelling methods and approaches in manufacturing of dental recoveries with the application of modern technologies and computer aided systems

  20. Employee motivation and work performance: A comparative study of mining companies in Ghana

    Energy Technology Data Exchange (ETDEWEB)

    Kuranchie-Mensah, E.; Amponsah-Tawiah, K.

    2016-07-01

    The paper empirically compares employee motivation and its impact on performance in Ghanaian Mining Companies, where in measuring performance, the job satisfaction model is used. The study employed exploratory research design in gathering data from four large-scale Gold mining companies in Ghana with regards to their policies and structures in the effectiveness of motivational tools and strategies used by these companies. The study observed that, due to the risk factors associated with the mining industry, management has to ensure that employees are well motivated to curb the rate at which employees embark on industrial unrest which affect performance, and employees are to comply with health and safety rules because the industry contribute hugely to the Gross Domestic Product (GDP) of the country. Limitation to the present study include the researcher’s inability to contact other mining companies. However, the study suggests possibilities for future research including contacting other mining companies, expanding the sample size, managers ensuring that the safety and health needs of staff are addressed particularly those exposed to toxic and harmful chemicals. A lot of studies have been done on mining companies in the past. This paper fills a gap perceived that employees in this sector are highly motivated in spite of the challenges being faced by them, and knowing more about what keeps employees moving is still of national interest. (Author)

  1. Employee motivation and work performance: A comparative study of mining companies in Ghana

    Directory of Open Access Journals (Sweden)

    Elizabeth Boye Kuranchie-Mensah

    2016-04-01

    Full Text Available Purpose: The paper empirically compares employee motivation and its impact on performance in Ghanaian Mining Companies, where in measuring performance, the job satisfaction model is used. Design/methodology/approach: The study employed exploratory research design in gathering data from four large-scale Gold mining companies in Ghana with regards to their policies and structures in the effectiveness of motivational tools and strategies used by these companies. Findings: The study observed that, due to the risk factors associated with the mining industry, management has to ensure that employees are well motivated to curb the rate at which employees embark on industrial unrest which affect performance, and employees are to comply with health and safety rules because the industry contribute hugely to the Gross Domestic Product (GDP of the country. Research Limitations/Implications: Limitation to the present study include the researcher’s inability to contact other mining companies. However, the study suggests possibilities for future research including contacting other mining companies, expanding the sample size, managers ensuring that the safety and health needs of staff are addressed particularly those exposed to toxic and harmful chemicals. Originality/Value: A lot of studies have been done on mining companies in the past. This paper fills a gap perceived that employees in this sector are highly motivated in spite of the challenges being faced by them, and knowing more about what keeps employees moving is still of national interest.

  2. Work Engagement, Intrinsic Motivation and Job Satisfaction among Employees of A Coal Mining Company in South Borneo

    OpenAIRE

    2015-01-01

    This paper seeks to establish the relationships between three job characteristics constructs, namely work engagement, intrinsic motivation and job satisfaction in a workplace notorious for discord and conflict between workers and employers. A quantitative methodology was adopted using a cross-sectional survey. Respondents were selected from the workers at a mining company, with a final sample of 156 employees participating in the study. The Utrecht Work Engagement Scale, Intrinsic Mot...

  3. WORK STRESS AND SUBJECTIVE/PSYCHOLOGICAL WELL-BEING OF EMPLOYEES OF STATE HOLDING COMPANY IN TIMES OF CHANGE

    Directory of Open Access Journals (Sweden)

    Solveiga Blumberga

    2016-09-01

    Full Text Available State Holding Company makes a number of improvements, followed by a process of changes each year. This study was conducted to understand how the changes in the company affect the employees working in it and how the employees deal with the stress caused by such changes. The purpose of the study was to investigate the links between personnel work stress, subjective and psychological well-being of employees during changes in State Holding Company. The research undertakes issues such as: the levels of employee stress and subjective well-being, the levels of employee psychological well-being, links, if any, between subjective and psychological well-being and work stress, and the methods used in the research study. The survey was created with reference to works of other authors such as “Professional Life Stress Scale”, “Life Satisfaction Scale” and “Psychological Well-being Survey”. It was concluded that the employees had medium levels of stress, medium levels of life satisfaction, and medium levels of overall psychological well-being. There are statistically significant links between subjective well-being, psychological well-being and work stress. Recommendations were prepared for the Human Resources Department to reduce stress levels of personnel working and successful management of changes.

  4. In-line drivetrain and four wheel drive work machine using same

    Science.gov (United States)

    Hoff, Brian

    2008-08-05

    A four wheel drive articulated mine loader is powered by a fuel cell and propelled by a single electric motor. The drivetrain has the first axle, second axle, and motor arranged in series on the work machine chassis. Torque is carried from the electric motor to the back differential via a pinion meshed with the ring gear of the back differential. A second pinion oriented in an opposite direction away from the ring gear is coupled to a drive shaft to transfer torque from the ring gear to the differential of the front axle. Thus, the ring gear of the back differential acts both to receive torque from the motor and to transfer torque to the forward axle. The in-line drive configuration includes a single electric motor and a single reduction gear to power the four wheel drive mine loader.

  5. CONTROL OF METAL SURFACES MACHINED IN ACCORDANCE WITH THE DIAMOND NANOMACHINING TECHNOLOGY BASED ON THE ELECTRON WORK FUNCTION

    Directory of Open Access Journals (Sweden)

    G. V. Sharonov

    2015-01-01

    Full Text Available Dimensional machining technology is based on the use of integrated geometric parameters of machined surfaces. Technological impact of a pick results in oxidation processes and changes in physic-chemical parameters of surface. Control of only geometric parameters is insufficient to describe characteristics of machining and formation of ultra-smooth surfaces. The electron work function is therefore used. The aim of the work was to study electrophysical states of optic surfaces of non-ferrous metals and alloys in relation to geometric and physic-chemical parameters according to the distribution of the electron work function over the surface. We conducted the study on experimental metal samples made of copper and aluminum alloy, machined in accordance with the diamond nanomachining technology. The diamond nanomachining technology would be capable of ensuring the roughness of non-ferrous metals and alloys machined at the level of Ra ≤ 0,005 µm. Modernized Kelvin probe was used as the registration technique of the changes of the electron work function over the surface. Dependence between the electron work function value, as well as its alteration and the physicchemical and geometric parameters of a surface has been determined. It has been shown that the diamond nanomachining technology makes it possible to obtain electro-physically uniform optical surfaces on copper and aluminum alloy with the minimal range of the distribution of the electric potential over the surface. 

  6. Environmental Beneficiation of Machining Wastes-Part III: Effects of Metal Working Fluids on the Spontaneous Heating of Machining Swarf.

    Science.gov (United States)

    Kawatra, S Komar; Hess, Mathew J

    1999-05-01

    Machining swarf is a finely divided metal powder that is prone to spontaneous heating and, in some cases, spontaneous combustion. The fine particle size, large amount of particle surface area, and the presence of moisture all promote rapid oxidation. This hazard dramatically increases disposal costs for swarf and interferes with recycling efforts. A potential method for minimizing spontaneous heating and facilitating recycling of the swarf is to spray a fluid on the material that coats the particles and creates a barrier between the metal and oxygen. Surface coatings could be tested for their effects on the spontaneous heating potential of swarf by treating a sample of swarf with a fluid that would coat the particles, then monitoring its heating behavior. This paper describes the results of applying corrosion inhibitors and machining fluids to the swarf, and monitoring the spontaneous heating behavior using a testing method developed specifically for this purpose. The effects of different types of surfactants and the effects of surfactant concentration on the spontaneous heating of swarf are discussed.

  7. Work analysis of the machine Claas Jaguar 880 employed in short rotation coppice harvesting

    Directory of Open Access Journals (Sweden)

    Verani S

    2010-02-01

    Full Text Available Working times observed during different harvesting phases in a poplar short rotation coppice (second rotation were calculated. The main objective of the work was to evaluate the yard productivity and the economic gain in order to furnish good indications to the field operators about the harvesting planning. A comparisons between productivity and economic features was carried out on observed (experimental yard and optimized data (optimized yard, the latter characterized by the absence of the inproductive times due to suboptimal yard organization. The harvested gross time as a function of distance covered by machine was assessed using linear regressions methods. The observed average biomass in plantation was 47.32 t ha-1. The harvesting gross average productivity observed in experimental yard was 34.20 t h-1 and the optimized was 54.16 t h-1. The working ability was 0.76 and 1.18 ha h-1 for experimental and optimized yard, respectively. The final product (chips costs estimated was 9.81 euro t-1 and 444.46 euro ha-1 in the experimental yard. The optimized yard was 22-24% more efficient. This paper demonstrates the feasibilty to estimate harvesting times and costs per hectare using linear regressions with good approximation when the standing biomass in plantation is known.

  8. Maintenance Work, Maintenance Skills: The Case of a Major Water Company in the UK.

    Science.gov (United States)

    Cooke, Fang Lee

    2002-01-01

    A case study of a British water company found that technological change had only a moderate impact on technical skills but increased the need for diagnostic and information technology skills for the maintenance of electronic equipment. Organizational restructuring increased requirements for functional flexibility and interpersonal skills.…

  9. Precision machining, sheet-metal work and welding at the heart of CERN

    CERN Multimedia

    2001-01-01

    From the writing of specifications and the production of high-tech components, to technology transfer and call-out work on-site, the MF group in EST Division offers CERN users a wide variety of services. Its full range of activities is presented in a new brochure. In addition to its many physicists and engineers, CERN also has teams of mechanics, welders and sheet-metalworkers whose expertise is a precious asset for the Organization. Within the MF Group (Manufacturing Facilities, EST Division) these teams perform precision machining, sheet-metal work and welding. As an example, the Group has been responsible for producing radiofrequency accelerating cells to a precision of the order of 1/100th mm and with a surface roughness of only 0.1 micron. The Group's workshops also manufactured the stainless steel vacuum chamber for the brand new n-TOF experiment (Bulletin n°47/2000), a 200-m long cylindrical chamber with a diameter of just 800 millimetres! The MF Group is assisted in its task of providing me...

  10. Human factors issues for resolving adverse effects of human work underload and workload transitions in complex human-machine systems

    Energy Technology Data Exchange (ETDEWEB)

    Ryan, T.G.

    1995-10-01

    A workshop was conducted whose specific purpose was to build on earlier work of the United States National Research Council, United States Federal government agencies, and the larger human factors community to: (1) clarify human factors issues pertaining to degraded performance in advanced human-machine systems (e.g., nuclear production, transportation, aerospace) due to human work underload and workload transition, and (2) develop strategies for resolving these issues. Recent history demonstrates that: (1) humans often react adversely to their diminishing roles in advanced human-machine systems, and therefore (2) new allocation models and strategies are required if humans are to be willing and able to assume diminishing and shifting roles assigned to them in these systems, and are to accept new technologies making up these systems. Problems associated with theses diminishing and shifting human roles are characterized as work underload and workload transitions. The workshop affirmed that: (1) work underload and workload transition are issues that will have to be addressed by designers of advanced human-machine systems, especially those relying on automation, if cost, performance, safety, and operator acceptability are to be optimized, (2) human machine allocation models, standards, and guidelines which go beyond simple capability approaches will be needed to preclude or seriously diminish the work underload and workload transition problems, and (3) the 16 workload definition, measurement, situational awareness, and trust issues identified during the workshop, need resolution if these models, standards, and guidelines are to be achieved.

  11. The Relationship between Quality of Work Life with Staff Performance of Iranian Gas Engineering and Development Company

    Directory of Open Access Journals (Sweden)

    Manouchehr Jofreh

    2012-08-01

    Full Text Available In today's society with according to the importance of human resources in advancing the goals of the organization, improving the quality of work life become as one of the main goals of the organization. People can have high performance that will satisfy their needs partially. Given attention to the quality of work life can increase employee motivation and increase the performance of employees. If staff with their able and capabilities be considered as well, they can have a critical important role to achieve the organizational objectives. So, the use of different techniques and methods to improve the quality of working life can be effective. In this study, the relationship between quality of work life with the staff performance of the Iranian Gas Engineering and Development Company is considered and components of quality of working life and staff performance have priority.

  12. Enhancement in Evaluating Small Group Work in Courses with Large Number of Students. Machine Theory at Industrial Engineering Degrees

    Science.gov (United States)

    Jordi Nebot, Lluïsa; Pàmies-Vilà, Rosa; Català Calderon, Pau; Puig-Ortiz, Joan

    2013-01-01

    This article examines new tutoring evaluation methods to be adopted in the course, Machine Theory, in the Escola Tècnica Superior d'Enginyeria Industrial de Barcelona (ETSEIB, Universitat Politècnica de Catalunya). These new methods have been developed in order to facilitate teaching staff work and include students in the evaluation process.…

  13. Structural bionic design for high——speed machine tool working table based on distribution rules of leaf veins

    Institute of Scientific and Technical Information of China (English)

    XING DengHai; CHEN WuYi; ZHAO Ling; MA JianFeng

    2012-01-01

    High-speed machine tool working table restrains the machining accuracy and machining efficiency,so lightweight design of the table is an important issue.In nature,leaf has developed a plate structure that maximizes the surface-to-volume ratio.It can be seen as a plate structure stiffened by veins.Compared with a high-speed machine tool working table,leaf veins play a role of supporting part which is similar to that of stiffening ribs,and they can provide some new design ideas for lightweight design of the table.In this paper,distribution rules of leaf veins were investigated,and a structural bionic design for the table was achieved based on regulation of leaf veins.First,statistical analysis on geometric structure of leaf veins was carried out,and four distribution rules were obtained.Then,relevant mechanical models were developed and analyzed in finite element soft-ware.Based on the results from mechanical analysis on those relevant models,the four distribution rules were translated into the design rules and a structural bionic design for the working table was achieved.Both simulation and experimental verifications were carried out,and results showed that the average displacement of the working table was reduced by about 33.9%.

  14. Intensification of the Students' Self-Development Process When Performing Design and Settlement Works on the "Machine Parts" Course

    Science.gov (United States)

    Timerbaev, Rais Mingalievich; Muhutdinov, Rafis Habreevich; Danilov, Valeriy Fedorovich

    2015-01-01

    The article addresses issues related to the methodology of intensifying self-development process when performing design and settlement works on the "Machine Parts" course for the students studying in such areas of training as "Technology" and "Vocational Education" with the use of computer technologies. At the same…

  15. Experimental study on working parameters of earth pressure balance shield machine tunneling in soft ground

    Institute of Scientific and Technical Information of China (English)

    Hehua ZHU; Shaoming LIAO; Qianwei XU; Qizhen ZHENG

    2008-01-01

    Deep sedimentary deposits of soft clays are widely distributed in coastal areas as well as many interior major cities in China. In order to study the stratum adapt-ability of earth pressure balance (EPB) shield machine tunneling in such types of soft ground, model tests of tunneling excavation, using the running tunnel of the Shanghai Metro Line M8 as a background, are carried out with different over burden ratios, opening rates of cutter head, driving speeds and rotation speeds of screw conveyor. Based on the test results, the interrelationships between chamber pressure and mucking efficiency, muck-ing rate and driving speed, thrust force and torque are obtained. The influences of tunnel depth, opening rate of cutter head and driving speed on thrust force and tor-que are revealed. Such findings can not only facilitate establishing relationships between shield working para-meters and soil properties, but also serve as a guide for the design and construction of shield tunnel in soft ground.

  16. Sustainable machining

    CERN Document Server

    2017-01-01

    This book provides an overview on current sustainable machining. Its chapters cover the concept in economic, social and environmental dimensions. It provides the reader with proper ways to handle several pollutants produced during the machining process. The book is useful on both undergraduate and postgraduate levels and it is of interest to all those working with manufacturing and machining technology.

  17. Machine Learning for Security

    CERN Document Server

    CERN. Geneva

    2015-01-01

    Applied statistics, aka ‘Machine Learning’, offers a wealth of techniques for answering security questions. It’s a much hyped topic in the big data world, with many companies now providing machine learning as a service. This talk will demystify these techniques, explain the math, and demonstrate their application to security problems. The presentation will include how-to’s on classifying malware, looking into encrypted tunnels, and finding botnets in DNS data. About the speaker Josiah is a security researcher with HP TippingPoint DVLabs Research Group. He has over 15 years of professional software development experience. Josiah used to do AI, with work focused on graph theory, search, and deductive inference on large knowledge bases. As rules only get you so far, he moved from AI to using machine learning techniques identifying failure modes in email traffic. There followed digressions into clustered data storage and later integrated control systems. Current ...

  18. Parametric Optimization of Wire Electrical Discharge Machining of Powder Metallurgical Cold Worked Tool Steel using Taguchi Method

    Science.gov (United States)

    Sudhakara, Dara; Prasanthi, Guvvala

    2016-08-01

    Wire Cut EDM is an unconventional machining process used to build components of complex shape. The current work mainly deals with optimization of surface roughness while machining P/M CW TOOL STEEL by Wire cut EDM using Taguchi method. The process parameters of the Wire Cut EDM is ON, OFF, IP, SV, WT, and WP. L27 OA is used for to design of the experiments for conducting experimentation. In order to find out the effecting parameters on the surface roughness, ANOVA analysis is engaged. The optimum levels for getting minimum surface roughness is ON = 108 µs, OFF = 63 µs, IP = 11 A, SV = 68 V and WT = 8 g.

  19. The impact of breaks during foundry work of the pressure casting machine on casting quality

    Directory of Open Access Journals (Sweden)

    S. Borkowski

    2010-10-01

    Full Text Available The result in the appearance of the technical object damage are its failures, which are considered as the most important causes of productivity loss in the technical objects. The article introduces main types of losses resulting from the downtimes of a casting machine. The time impact analysis of the font mould failure and the remaining time of the machine's failures on the castings quality was conducted. The failure time structure of the font mould and other failures of the machine was presented.

  20. The Relation of Organizational Climate and Working Life Quality with Staff Productivity of Telecommunication Company of Tehran

    Directory of Open Access Journals (Sweden)

    Tahmoures Hasangholipoor Yasvari

    2014-03-01

    Full Text Available This study seeks to investigate the relationship of the organizational climate and the quality of working life with productivity of the staff of Telecommunication Company of Tehran. This study is a correlative descriptive research. The statistical universe comprises 588 people-all the regular and contractual employees. The sample including 234 employees was selected by a simple random sampling method. The data were collected through the organizational climate questionnaire, the quality of working life questionnaire and productivity questionnaire. To determine questionnaire reliability, Cronbach's alpha method was adopted and adequacy of all tools was approved. Data gathered by the Pearson Correlation Coefficient, Multiple Regression Analyses Correlation Coefficients and Route Analysis were analyzed. The results reveal a statistically positive and significant relationship between the organizational climate and productivity and between the quality of working life dimensions and productivity. Organizational climate is an effective variable on the quality of working life and has a direct effect on the productivity.

  1. An empirical study on the relationship between working capital management and profitability: A case study of Mehregan Sangesar Company

    Directory of Open Access Journals (Sweden)

    Khosro Faghani Makarani

    2013-03-01

    Full Text Available This study examines the relationship between the working capital management and profitability for a real-world case study in Iran over the period 2004-2012. There are three components associated with working capital including account payable period, inventory turnover period and receivable account period. The study uses cash conversion cycle to investigate the impacts of working capital management on profitability, simultaneously. We use Pearson correlation ratios as well as regression techniques to study different hypotheses. The result indicates an inverse relationship between variables of working capital and profitability. It means if account receipt, cash conversion cycle and period of debt payment increase, the profitability of this company will decrease so managers can create more value that is positive for shareholders by decreasing period of debt payment, period of inventory turnover and period of demand collection.

  2. Workers’ Self-management, Recovered Companies and the Sociology of Work

    Science.gov (United States)

    Croucher, Richard

    2014-01-01

    We analyse how far Argentina’s worker-recovered companies (WRCs) have sustained themselves and their principles of equity and workers’ self-management since becoming widespread following the country’s 2001–2 economic crisis. Specialist Spanish-language sources, survey data and documents are analysed through four key sociological themes. We find that the number of WRCs has increased in Argentina, and that they represent a viable production model. Further, they have generally maintained their central principles and even flourished. This occurred despite the global economic crisis, legal and financial pressures to adopt capitalist practices and management structures, the risk of market absorption and state attempts to coopt, demobilise and depoliticise the movement. We argue that today they function as a much-needed international beacon of an alternative vision for labour and that integration of their experience has potential to revitalise the field. PMID:25419009

  3. Workers' Self-management, Recovered Companies and the Sociology of Work.

    Science.gov (United States)

    Ozarow, Daniel; Croucher, Richard

    2014-10-01

    We analyse how far Argentina's worker-recovered companies (WRCs) have sustained themselves and their principles of equity and workers' self-management since becoming widespread following the country's 2001-2 economic crisis. Specialist Spanish-language sources, survey data and documents are analysed through four key sociological themes. We find that the number of WRCs has increased in Argentina, and that they represent a viable production model. Further, they have generally maintained their central principles and even flourished. This occurred despite the global economic crisis, legal and financial pressures to adopt capitalist practices and management structures, the risk of market absorption and state attempts to coopt, demobilise and depoliticise the movement. We argue that today they function as a much-needed international beacon of an alternative vision for labour and that integration of their experience has potential to revitalise the field.

  4. Dilemmas and Challenges in the Marketing of Hybrid Organizations: A Theoretical Exploration of Dutch Sheltered Work Companies

    Directory of Open Access Journals (Sweden)

    Lieske van der Torre

    2014-02-01

    Full Text Available This article explores the dilemmas and challenges that hybrid organizations face when developing marketing strategies. Hybrid organizations are organizations that combine tasks and characteristics of governmental organizations, private (for profit organizations, and non-profit organizations. In this article, we show that these organizations are confronted with different target groups, organizational identities and key images. In some instances, the key messages that need to be transmitted through marketing strategies may even be incompatible. Dutch sheltered work companies are illustrative examples of hybrid organizations. They compete with temp work agencies in providing employees to employers, they provide care for people with severe disabilities and they implement the Dutch Sheltered Work Act in their role of governmental agencies. This article theoretically identifies the challenges and dilemmas that may be involved in the marketing of these diverse activities and explores strategies that may be used to overcome these challenges and dilemmas.

  5. Working time flexibility components and working time regimes in Europe: using company-level data across 21 countries

    NARCIS (Netherlands)

    Chung, H.; Tijdens, K.

    2013-01-01

    Working time flexibility comprises a wide variety of arrangements, from part-time, overtime, to long-term leaves. Theoretical approaches to grouping these arrangements have been developed, but empirical underpinnings are rare. This article investigates the bundles that can be found for various

  6. Work Engagement, Intrinsic Motivation and Job Satisfaction among Employees of A Coal Mining Company in South Borneo

    Directory of Open Access Journals (Sweden)

    Hasan Sartono

    2015-08-01

    Full Text Available This paper seeks to establish the relationships between three job characteristics constructs, namely work engagement, intrinsic motivation and job satisfaction in a workplace notorious for discord and conflict between workers and employers. A quantitative methodology was adopted using a cross-sectional survey. Respondents were selected from the workers at a mining company, with a final sample of 156 employees participating in the study. The Utrecht Work Engagement Scale, Intrinsic Motivation Inventory and the Minnesota Job Satisfaction Questionnaire were used to collect data. The results of the study indicate positive relationships between job satisfaction, work engagement and intrinsic motivation among the workers. Age and marital status were found to be significant contributors to workers’ job satisfaction, intrinsic motivation and work engagement. Implications of these results are that human resource interventions are required in order to deal with enhancing work engagement, intrinsic motivation and job satisfaction. Furthermore, the results indicate that intrinsic motivation and work engagement can enhance job satisfaction. The current study adds to the research pointing at job satisfaction as a promising underlying mechanism for employees’ to be internally motivated and engaged at work.

  7. Liquidation of the company

    OpenAIRE

    Procházka, Michal

    2011-01-01

    This work deals with the liquidation of the company focusing on commercial companies. It describes whole process of liquidation from decision to liquidate to delete the company from the Commercial Register. The work also focuses on legal, accounting and tax site of liquidation. Accounting practices in the liquidation process are illustrated on the example of a fictive company.

  8. Assessment of Satisfaction Rate Among the Working Staff of Mazandaran University of Supplemental Insurance Company in 2005

    Directory of Open Access Journals (Sweden)

    R. Mohammadpour, Ph.D

    Full Text Available Background and purpose: The range of medical services is so large that rendering services under the support of medical insurance is not possible for the insurance companies. Many of the patients need the supplemental insurance, specially when this type of insurance completes the general medical insurance. Clients' consent with the health service center is undeniable nowadays. This study was performed to determine the rate of working staff's consent at Mazandaran University of Medical Sciences of the supplemental insurance company in Sari.Materials and Methods: In a descriptive study, 120 out patients and hospitalized patients who had benefitted from the supplemental insurance for once company underwent the study.Data collected by questionnaire were confirmed on account of P validity to be used in the pilot study. Also, data were analyzed in descriptive method with SPSS software.Results: The obtained results were as follows; 63 (%52.5 were male, 79 subjects aged 30-49 years (65.8%, 63 had higher education (52.5%, 90 were married (75%. 54 (%45 subjects were hospitalized with cardiovascular disease and digestive problems. Also 72 subjects (%60 had the history of 3 days hospitalization. Sonography was the method of treatment (43% that was used for %43 of them. Regarding the purpose of the study, many of the subjects under the study, (51.7%, were satisfied with the supplemental insurance company in terms of behavior, 64 subjects (%53.3 with insurance compancy's cooperation and finally 59 subjects (%49.2 were pleased with the organization's commitment to its responsibility.Conclusion: The X2 test showed that there is significant relationship among the age, education number of hospitalization, the reason of hospitalization, diagnostic procedures, and the rate of satisfactions p<0.001. This finding indicates knowledge, relation with the medical care centers, type and quality of rendered services.Therefore, it is suggested that a logical planning be

  9. Tribotechnical and Energy Assessment of Parts of Working Members of Cultivating Machines After Carburizing and Laser Hardening

    Science.gov (United States)

    Pyndak, V. I.; Novikov, A. E.

    2016-07-01

    Results of experimental studies of low-carbon steel 20 and high-carbon steels of types 70 and 65G after carburizing, heat treatment and laser hardening are presented. The variation of the microhardness of the surface layers of the steels and of their wear resistance due to different variants of hardening is determined. Optimum modes of treatment aimed at raising the strength and wear resistance are suggested for the steels used for working members of cultivating machines.

  10. WORK ETHICS IN ROMANIAN COMPANIES (II - A DESCRIPTIVE AND A NORMATIVE APPROACH

    Directory of Open Access Journals (Sweden)

    Pup Anca

    2012-07-01

    Full Text Available This article has as start point the following question: “Why do we work?” Indentifying at least three different answers, I consider that the attitude throughout work can be shaped based on these issue. At the first level, the value of work is based on the assumption that by work, the human being provides his living existence. On the second level, it is considered that the work supplies opportunities for self-expression, identity, drawing talent and enriching the personality. And on the last level, it is identified a new perspective upon work – as a reconciliation between private interest and public good. At each level, my aim is to present the status quo, but also the possible distresses when the value of work is bounded to one purpose, for example what happens if throughout our activity we are only absorbed to procure the supply basic needs or only to define our identity. If the attitude towards work specific for the first two levels is focused on "the desire to consumption", I consider that at the third level, the ethics governing employees shifted to “desire to production”. That means that workforce is not only interested in economic rewards nor the gratification of self fulfillment or professional accomplishment, - aspects relevant on what one can receive- but it is focused on how it can be help full for the organization or for society, being concern upon on what it can offer, making a reconciliation between private interest and public good.

  11. UX Design Innovation: Challenges for Working with Machine Learning as a Design Material

    DEFF Research Database (Denmark)

    Dove, Graham; Halskov, Kim; Forlizzi, Jodi

    2017-01-01

    Machine learning (ML) is now a fairly established technology, and user experience (UX) designers appear regularly to integrate ML services in new apps, devices, and systems. Interestingly, this technology has not experienced a wealth of design innovation that other technologies have, and this might...

  12. Learning Control: Sense-Making, CNC Machines, and Changes in Vocational Training for Industrial Work

    Science.gov (United States)

    Berner, Boel

    2009-01-01

    The paper explores how novices in school-based vocational training make sense of computerized numerical control (CNC) machines. Based on two ethnographic studies in Swedish schools, one from the early 1980s and one from 2006, it analyses change and continuity in the cognitive, social, and emotional processes of learning how to become a machine…

  13. Learning Control: Sense-Making, CNC Machines, and Changes in Vocational Training for Industrial Work

    Science.gov (United States)

    Berner, Boel

    2009-01-01

    The paper explores how novices in school-based vocational training make sense of computerized numerical control (CNC) machines. Based on two ethnographic studies in Swedish schools, one from the early 1980s and one from 2006, it analyses change and continuity in the cognitive, social, and emotional processes of learning how to become a machine…

  14. Working conditions and psychosocial risk factors of employees in French electricity and gas company customer support departments.

    Science.gov (United States)

    Chevalier, Anne; Dessery, Michel; Boursier, Marie-Françoise; Grizon, Marie Catherine; Jayet, Christian; Reymond, Catherine; Thiebot, Michelle; Zeme-Ramirez, Monique; Calvez, Thierry

    2011-01-01

    Little is known about the real impact of working conditions on the health of call center employees. The aim of this article is to describe the working conditions of French electricity and gas company customer service teams, especially those spending more than 75% of their working time handling calls in order to determine their subjective experience of their work and identify situations at risk of psychosocial constraints. A cross-sectional study using a self-completion questionnaire was conducted on a representative sample of 2,000 employees working in customer service centers. The questions focused on the variety of tasks performed, the organization of working time, the physical environment of the workstation, violent situations and psychosocial factors (Job Content Questionnaire). Multivariate statistical analyses were performed to identify factors associated with the wish to leave the sector and with a high level of psychosocial constraints. Women made up 66% of the sample. Despite a high educational level, the average socio-professional level of the employees was relatively low. Although the vast majority of employees had chosen this career (74%), just over half would like to leave. The main factors associated with iso-strain were inadequate breaks (odds ratio (OR) = 2.0), low perceived quality of work (OR = 2.4), high proportion of working time spent handling calls (≥75% of working time: OR = 5.9, between 50 and customers (often or very often: OR = 1.8) and an unsatisfactory workplace (OR = 2.0). Employees who spend more than 75% of their working time on the phone cumulate every factor linked with a high level of constraints, but all employees of the EDF and Gaz de France customer service centers are concerned. These workers share many characteristics with other call centers: predominantly female workforce; high educational level; wish to leave this sector despite the initial choice; high level of psychosocial risk factors.

  15. Sick company, stressed employee: analyzing the organizational health like influencing the work-related stress

    Directory of Open Access Journals (Sweden)

    Monize Sâmara Visentini

    2010-01-01

    Full Text Available This study investigated the perceived Organizational Health influence on workrelated stress at the restaurants employees in the Santa Maria-RS city. To that end, it was used a survey from employee of the three public and four private restaurants. There has been a factor analysis showed those five factors for work-related stress and four factors of organizational health. Through an examination of correlation showed the multidimensionality of these constructs. Given these results, to check the influence of the perception of organizational health on occupational stress, there was a regression analysis and found to be valid five models that serve the conditions necessary. However, these models have low power of explanation, indicating that the factors of occupational stress are not sufficient to explain the organizational health, should to investigate other aspects of the work environment that interfere in the perception of work-related stress

  16. THE MODEL OF WORK IN PROCESS INVENTORY MANAGEMENT OF RAIL CARS BUILDING COMPANY

    Directory of Open Access Journals (Sweden)

    Julia BULGAKOVA

    2013-12-01

    Full Text Available The necessity of work-in-process management of rail-cars production by intelligent decision support software, which is based on JIT and Kanban principles, is identified. The scheme of one type cargo-flow movement between two workshops with control by electronic and traditional kanban-card is offered. For simulation of rail-cars production cargo flows Markov chain of M/M/1/1 type was applied. Simulation shows the dependence of the work-in-process on the in-flow and out-flow intensity. To determine the high level of the optimal work-in-process the stochastic inventory management model is applied.

  17. In stressful company – Changes in stress and work ties over time

    DEFF Research Database (Denmark)

    Waldstrøm, Christian; Parker, Andrew; Shah, Neha P.

    Recent research on stress and burnout has highlighted the collective aspects of stress symptoms, perceived stress, and coping mechanisms. Much of this work, however, is focused on group and team dynamics rather than how network factors shape individuals’ feelings of stress and burnout. We use...

  18. Assessment of functional state and adaptation reserves of machine operators in agriculture with different work experience in the profession

    Directory of Open Access Journals (Sweden)

    S.S. Raikin

    2015-09-01

    Full Text Available The results of hemodynamic parameters’ evaluation (blood pressure, heart rate, minute volume of blood, total peripheral vascular resistance and adaptation (adaptive capacity of the circulatory system, the index of physical condition, body mass index to job strains in machine operators of agriculture with a different experience in the profession are presented. It was found that 27 % of the patients – machine operators were in a state of unsatisfactory adaptation and 18.8 % in the state of failure of adaptation options when functional body reserves were sharply reduced, indicating that the work in hazardous conditions resulted in a significant deterioration of the functional state of exhaustion and adaptation reserves. It was found that the professional experience of 10 years or more is a risk factor for the health of machine workers in agriculture, causing the violation of functional state and exhaustion of adaptive reserves of an organism, as evidenced by a statistically significant correlation between the indicators of functional status and work experience in the profession.

  19. The relationship between barriers to change and the work engagement of employees in a South African property management company

    Directory of Open Access Journals (Sweden)

    Elsabé Bell

    2011-03-01

    Full Text Available Orientation: For any organisational change initiative to have a successful outcome, people need to contribute and be engaged in the process. Research purpose: The main objective of the research was to determine the relationship between barriers to change and work engagement. The secondary objectives of the research were to determine whether there are significant relationships between barriers to change, work engagement and demographic variables. Motivation for the study: Exploring and understanding the relationship between barriers to change and work engagement amongst different demographic groups will help organisations to predict which working environments and jobs are amenable to organisational change and which will alleviate, and maybe even eliminate, the negative effects of change. Research design, approach and method: The researchers used a cross-sectional survey research design. They drew a convenience sample of 234 employees (N = 234 from a South African property management company. They administered the Barriers to Change Questionnaire and the Utrecht Work Engagement Scale. Main findings: The results showed a practically significant relationship, with a large effect, between barriers to change and work engagement. In addition, the results showed significant differences between barriers to change and demographic groupings based on home language, ethnicity and organisational level. The results also showed significant differences between work engagement and demographic groupings based on home language, ethnicity and level of education. Practical/managerial implications: Managing barriers to change can increase the work engagement of employees. Contribution/value-add: The research adds to the knowledge about the adverse effects of organisational change initiatives on people.

  20. English-Lithuanian-English Machine Translation lexicon and engine: current state and future work

    CERN Document Server

    Barisevičius, G

    2011-01-01

    This article overviews the current state of the English-Lithuanian-English machine translation system. The first part of the article describes the problems that system poses today and what actions will be taken to solve them in the future. The second part of the article tackles the main issue of the translation process. Article briefly overviews the word sense disambiguation for MT technique using Google.

  1. Diseases of worker in a peruvian company law enforcement safety and health at work

    Directory of Open Access Journals (Sweden)

    Henry L. Allpas Gómez

    2016-03-01

    Full Text Available Objective: To identify the most common diseases, according the workplace. Material and Methods: The research was descriptive, prospective, exploratory and cross-sectional. It was made at a factory in Lima, which was in the process of application to the law Safety and Health at Work. According to the selection criteria, 121 workers were admitted, which took part of the medical examination, and a file card for medical occupational data was applied. The descriptive statistical analysis (mean, standard deviation, and respective frequencies of 95 % was performed and a level of significance (p<0.05. The statistical package SPSS and Microsoft Excel were used. Results: The population of study was divided into two occupational areas: workers and administrative staff. The average age was 37.48 years and males represented 83.5%. The most frequent pathological characteristics were: Dyslipidemia (66.9% Hypertriglyceridemia, Hypercholesterolemia 64.5%, 37.2% uncorrected refractive error, 36.8% mild hearing loss and 57% overweight. According to the work area: manual workers showed a higher frequency of hearing problems, dyslipidemia, obesity and high blood pressure (HTA. The administrative staff had greater effects of dyslipidemia, uncorrected refractive error, Grade -I obesity and overweight. Conclusions: The most frequent occupational diseases in the two areas according to the group I: refractive errors and hearing loss. In group II: dyslipidemia and overweight.

  2. Work Posture and Back Pain Evaluation in a Malaysian Food Manufacturing Company

    Directory of Open Access Journals (Sweden)

    Baba M. Deros

    2010-01-01

    Full Text Available Problem statement: A cross-sectional study was conducted among workers at a processed food manufacturer in Malaysia. The main objective of the study was to determine the prevalence of back pain among workers who perform manual material handling. In addition, the study also investigated the effectiveness of the interventions provided by the employer to reduce the risk of back pain. Approach: A total of 60 workers had participated in the study. Socio-demographic information and back pain symptoms were obtained using Standardized Nordic Questionnaire (SNQ for analysis of musculoskeletal Symptoms. WinOWAS software was used to identify the respondent's working posture. Results: Study results showed that lifting posture contributed the highest percentage of upper extremities back pain (45% and lower extremities back pain (80%. There was a significant relationship at level p≤0.05 for posture working repeatedly and lifting weight above head level. The interventions provided by the employer showed 82% of the respondents gave a positive feedback for training provided. As for personal protective equipment and mechanical aid, both showed positive results at 84.61 and 100% respectively. Chi-square analysis results showed, respondents' age has significant effect on standing posture for 10 min (pConclusion: The study suggested that all manual handling activities should be replaced with mechanical aids to reduce prevalence of back pain.

  3. Assessing the Present in Perspective of the Past: Experiences from a Chronicle Workshop on Company-Level Work Disability Management

    Directory of Open Access Journals (Sweden)

    Ulrik Gensby

    2014-05-01

    Full Text Available Participatory approaches to jointly address development and change processes are increasingly applied in Nordic working life research. One approach, the Chronicle Workshop (CW, aims at facilitating collective history through collaborative exploration and joint analysis of organizational development and change processes to guide forthcoming change. This study presents the CW methodology as an interactive research process. The study examines how the CW can facilitate mutual understanding and explanation of sickness absence and return to work efforts in the healthcare workplace, and discuss the extent to which the CW methodology can inform researchers involved in organizational development and change to address some potential limitations that exist. The CW encouraged the expression of diverse perspectives, incorporating insight from different organizational levels, and identified various kinds of resources and dilemmas in mapping the collective history of company-level sickness absence and return to work efforts. More attention to consensus building and power relations, greater explicitness about theoretical groundings, researcher role, and follow-up action ought to be considered prospectively to develop the method further. Inspiration from action research principles and the combined use of critical realism and interactive research may guide future development of the CW methodology.

  4. Do Italian Companies Manage Work-Related Stress Effectively? A Process Evaluation in Implementing the INAIL Methodology

    Directory of Open Access Journals (Sweden)

    Cristina Di Tecco

    2015-01-01

    Full Text Available Studies on Intervention Process Evaluation are attracting growing attention in the literature on interventions linked to stress and the wellbeing of workers. There is evidence that some elements relating to the process and content of an intervention may have a decisive role in implementing it by facilitating or hindering the effectiveness of the results. This study aimed to provide a process evaluation on interventions to assess and manage risks related to work-related stress using a methodological path offered by INAIL. The final sample is composed of 124 companies participating to an interview on aspects relating to each phase of the INAIL methodological path put in place to implement the intervention. INAIL methodology has been defined as useful in the process of assessing and managing the risks related to work-related stress. Some factors related to the process (e.g., implementation of a preliminary phase, workers’ involvement, and use of external consultants showed a role in significant differences that emerged in the levels of risk, particularly in relation to findings from the preliminary assessment. Main findings provide information on the key aspects of process and content that are useful in implementing an intervention for assessing and managing risks related to work-related stress.

  5. Hearing loss associated with smoking and occupational noise exposure in a Japanese metal working company.

    Science.gov (United States)

    Nomura, Kyoko; Nakao, Mutsuhiro; Yano, Eiji

    2005-04-01

    The effects of smoking on hearing loss within the context of atherosclerosis was assessed, and the statistical interaction of occupational noise evaluated. A cross-sectional study was conducted in 397 Japanese males working at a metal factory, aged 21-66 years, in a periodical health checkup. The following information was obtained: two smoking indices of smoking status and Brinkman index, occupational noise exposures and atherosclerotic risk factors (body mass index, blood pressure, serum cholesterol, hemoglobin A1c, atherosclerosis index). Hearing acuity was measured at 4 kHz using a pure-tone audiometer in a quiet room. Among the total subjects, 55 (13.9%) were identified as having hearing loss at 4 kHz, and 151 (38.0%) were currently exposed to occupational noise. When adjusted for age and occupational noise exposure, odds ratios (95% confidence intervals) of hearing loss were 3.16 (1.04, 9.62) for past smokers and 3.39 (1.05, 11.01) for heavy smokers (Brinkman index >750 cigarettes per day x number of years), compared with never-smokers. Statistical interaction of occupational noise exposure was insignificant with the association between smoking and hearing loss. When including atherosclerotic risk factors in a multiple model, there were no significant associations between hearing loss and either smoking or any other factors (i.e., occupational noise and atherosclerotic factors). Smoking was found to be associated with hearing loss beyond occupational noise exposure, and this association seemed to be masked by atherosclerotic factors, suggesting that the direction of the atherosclerotic effect on the relationship might need to be explored between smoking and hearing impairment.

  6. Simple machines

    CERN Document Server

    Graybill, George

    2007-01-01

    Just how simple are simple machines? With our ready-to-use resource, they are simple to teach and easy to learn! Chocked full of information and activities, we begin with a look at force, motion and work, and examples of simple machines in daily life are given. With this background, we move on to different kinds of simple machines including: Levers, Inclined Planes, Wedges, Screws, Pulleys, and Wheels and Axles. An exploration of some compound machines follows, such as the can opener. Our resource is a real time-saver as all the reading passages, student activities are provided. Presented in s

  7. Companies study effects of heat : objective is to determine how long miners can work before suffering heat stress

    Energy Technology Data Exchange (ETDEWEB)

    Tollinsky, N.

    2008-09-15

    Despite the use of ventilation systems, mine workers are often forced to work in underground mines where temperatures can often reach up to 45 degrees C. This article provided details of a study that is currently investigating the effect of heat and physical exertion on miners. The aim of the study is to provide data for improved protocols and regulations in order to mitigate the risks of heat stress. The research is being conducted at a mine in Quebec's Abitibi region by researchers from Ottawa University's human kinetics department. The researchers are examining tasks performed by the miners using in situ time motion analyses. The miners have been fitted with sensors in order to measure body temperatures in order to determine the amounts of energy expended for each task and how long miners can work before they become overheated. Mining companies traditionally rely on ventilation systems to improve underground conditions for miners. It was concluded that this study will provide a better understanding of the risks associated with heat stress. 1 fig.

  8. Enhancement in evaluating small group work in courses with large number of students. Machine theory at industrial engineering degrees

    Directory of Open Access Journals (Sweden)

    Lluïsa Jordi Nebot

    2013-03-01

    Full Text Available This article examines new tutoring evaluation methods to be adopted in the course, Machine Theory, in the Escola Tècnica Superior d’Enginyeria Industrial de Barcelona (ETSEIB, Universitat Politècnica de Catalunya. These new methods have been developed in order to facilitate teaching staff work and include students in the evaluation process. Machine Theory is a required course with a large number of students. These students are divided into groups of three, and required to carry out a supervised work constituting 20% of their final mark. These new evaluation methods were proposed in response to the significant increase of students in spring semester of 2010-2011, and were pilot tested during fall semester of academic year 2011-2012, in the previous Industrial Engineering degree program. Pilot test results were highly satisfactory for students and teachers, alike, and met proposed educational objectives. For this reason, the new evaluation methodology was adopted in spring semester of 2011-2012, in the current bachelor’s degree program in Industrial Technology (Grau en Enginyeria en Tecnologies Industrials, GETI, where it has also achieved highly satisfactory results.

  9. Progress in development of coated indexable cemented carbide inserts for machining of iron based work piece materials

    Science.gov (United States)

    Czettl, C.; Pohler, M.

    2016-03-01

    Increasing demands on material properties of iron based work piece materials, e.g. for the turbine industry, complicate the machining process and reduce the lifetime of the cutting tools. Therefore, improved tool solutions, adapted to the requirements of the desired application have to be developed. Especially, the interplay of macro- and micro geometry, substrate material, coating and post treatment processes is crucial for the durability of modern high performance tool solutions. Improved and novel analytical methods allow a detailed understanding of material properties responsible for the wear behaviour of the tools. Those support the knowledge based development of tailored cutting materials for selected applications. One important factor for such a solution is the proper choice of coating material, which can be synthesized by physical or chemical vapor deposition techniques. Within this work an overview of state-of-the-art coated carbide grades is presented and application examples are shown to demonstrate their high efficiency. Machining processes for a material range from cast iron, low carbon steels to high alloyed steels are covered.

  10. Strategies to reduce safety violations for working from heights in construction companies: study protocol for a randomized controlled trial.

    Science.gov (United States)

    van der Molen, Henk F; Frings-Dresen, Monique H W

    2014-05-31

    Safety measures should be applied to reduce work-related fatal and non-fatal fall injuries. However, according to the labor inspectorate, more than 80% of Dutch construction sites violate safety regulations for working from heights. To increase compliance with safety regulations, employers and workers have to select, implement and monitor safety measures. To facilitate this behavioral change, stimulating knowledge awareness and personalized feedback are frequently advocated behavior change techniques. For this study, two behavior change strategies have been developed in addition to the announcement of safety inspections by the labor inspectorate. These strategies consist of 1) face-to-face contacts with safety consultants and 2) direct mail with access to internet facilities. The objective of this study is to evaluate the effectiveness of these two strategies on the safety violations for working from heights, the process and the cost measures. This study is a block randomized intervention trial in 27 cities to establish the effects of the face-to-face guidance strategy (N = 9), a direct mailing strategy (N = 9) and a control condition of no guidance (N = 9) on safety violations to record by labor inspectors after three months. A process evaluation for both strategies will be performed to determine program implementation (reach, dose delivered and dose received), satisfaction, knowledge and perceived safety behavior. A cost analysis will be performed to establish the financial costs for both strategies. The present study is in accordance with the CONSORT statement. This study increases insight into performing practice-based randomized controlled trials. The outcome will help to evaluate the effect of two guidance strategies on safety violations. If these strategies are effective, implementation of these strategies through the national institute of safety and health or labor inspectorate can take place to guide construction companies in complying with

  11. Working capital management and its impact on profitability:A study listed manufacturing companies in Sri Lanka

    Directory of Open Access Journals (Sweden)

    Balasundaram Nimalathasan

    2010-12-01

    Full Text Available Main purpose of the study is to identify the impact of working capital management on profitability of selected listed manufacturing companies from financial year 2003-2007. Correlation and regression analysis were performed. Results reveals that cash conversion cycle (CCC and return on assets (ROA are negatively correlated the value of -0.127 which is highly significant at 1 percent level of significance, which means that as the cash conversion cycle increases ROA decreases. In addition inventory conversion period (ICP is highly significant at 1 percent level. It indicates that with increasing level of ICP, ROA will be increased -0.065 levels. Further the coefficient of the CCC variable is negative at a value of -0.0503 and p value is 0.006. This implies that an increase in the number of day’s cash conversion cycle by 1 day is associated with a decline in ROA by 5.03%. The results suggest that managers can increase profitability of manufacturing firms by reducing the number of day’s inventories and accounts receivable

  12. ALGORITHMS FOR THE PROGRAMMING OF FOOTWEAR SOLES MOULDS ON WORKING POSTS OF INJECTION MACHINES

    Directory of Open Access Journals (Sweden)

    LUCA Cornelia

    2014-05-01

    Full Text Available The moulds stock necessary for realization in rhythmically conditions, a certain volume of footwear soles depends on some criterions such as: the range of soles for footwear volume daily realized, the sizes structure of those soles for footwear and, respectively, the sizes tally, the technological cycle for an used mould depending on the equipment efficiency, the provide necessity of spare moulds, the using and fixing conditions etc. From the efficiency point of view, the equipments may have two working posts, or more working posts (always, an even number, as 6, 12, 24, 40 posts. Footwear soles manufacturing takes into account the percentage distribution of the size numbers of the size series. When o portative assembly is used for the manufacturing of the footwear soles using the injection with “n” working posts, it is very important an optimum distribution of the working posts. The disadvantages of these equipments are the situations of the no equilibrium programming of the moulds, so that, in one time, some working posts spread out of the work. The paper presents some practical and theoretical solutions for moulds stock programming in portative assembly for footwear soles injection, so that an optimum equilibrium degree of the working posts will obtain

  13. CONCEPTUAL DESIGN FOR A RADICALLY SMALLER, HIGHLY ADAPTIVE AND APPLICATION-FLEXIBLE MINING MACHINE FOR UTILITY AND DEVELOPMENT WORK

    Energy Technology Data Exchange (ETDEWEB)

    Andrew H. Stern

    2004-12-20

    The aim of this research project was to develop a preliminary ''conceptual design'' for a radically smaller, highly adaptive and application-flexible underground coal mining machine, for performing non-production utility work and/or also undertake limited production mining for the recovery of reserves that would otherwise be lost. Whereas historically, mining philosophies have reflected a shift to increasing larger mechanized systems [such as the continuous miner (CM)], specific mining operations that do not benefit from the economy of the large mining equipment are often ignored or addressed with significant inefficiencies. Developing this prototype concept will create a new class of equipment that can provide opportunities to re-think the very structure of the mining system across a broad range of possibilities, not able to be met by existing machinery. The approach involved pooling the collective input from mining professionals, using a structured listing of desired inputs in the form of a questionnaire, which was used to define the range of desired design specifications. From these inputs, a conceptual specification was blended, by the author, to embody the general concurrence of mission concepts for this machine.

  14. Master Works of Aeschylus, Sophocles, and Euripides as Illuminated by Aristotle's "Poetics." Curriculum Projects, February 7-April 11, 1991. The Huntington Theatre Company's Master Works Study in Greek Drama.

    Science.gov (United States)

    Huntington Theatre Co., Boston, MA.

    Developed by the participants of the Huntington Theatre Company's Master Works Study in Greek drama, this collection presents lesson plans and curriculum projects for teaching the master works of Greek drama. The collection offers 22 lesson plans or curriculum projects (ranging from one day to several weeks) suitable for secondary school students…

  15. Cost Effective Machining Of Ceramics (CEMOC)

    Energy Technology Data Exchange (ETDEWEB)

    Barkman, W.E.

    1997-04-18

    The purpose of the CEMOC program was to support U.S. industry needs in fabricating precision components, from difficult to machine materials, while maintaining and enhancing the precision manufacturing skills of the Oak Ridge Complex. Oak Ridge and partner company personnel worked in a team relationship wherein each contributed equally to the success of the program. In general, Oak Ridge contributed a wider range of expertise to a given task while the companies provided operations-specific equipment and shop-floor services. Process control technologies, machining procedures and parameters, and coolant-related environmental tasks were the primary focus areas. The companies were very pleased with the results of the CRADAs and are planning on continuing the relationships. Finish machining operations contribute the majority of the costs associated with fabricating high quality ceramic products. These components are typically used in harsh environments such as diesel engines, defense machinery, and automotive components. The required finishing operations involve a variety of technologies including process controls, machine coolants, product certification, etc. and are not limited only to component grinding methods. The broad range of manufacturing problem solving expertise available in Oak Ridge provided resources that were far beyond what are typically available to the CRADA partners. These partners contributed equipment, such as state-of-the-art machine tools, and operation-specific experience base. In addition, addressing these challenging tasks enabled Oak Ridge personnel to maintain familiarity with rapidly advancing technologies, such as those associated with computer control systems.

  16. THE EFFECT OF ISLAMIC WORK ETHICS ON THE PERFORMANCE RESULT OF MUSLIM EMPLOYEES OF MARKETING SECTOR IN THE MULTINATIONAL COMPANIES

    Directory of Open Access Journals (Sweden)

    Mitra Hadisi

    2014-06-01

    Full Text Available This study investigates the effect of Islam on efficiency of Muslim employees in multinational companies. The findings of the studies conducted to date examining the potential and actual impact of Islam in multinational setting indicates that although it seems that religion has no significant effect on multinational companies, but its internal effects such as internal and interpersonal conflicts with the type of activity of companies may be intensified. Moreover, these effects would be different based on the department of individual employees. For example, when the religious orientations of Muslims increase, their activities, according to the type of the product or service provided, in marketing sector of multinational companies may be affected. As the products and services offered would have more moral dimensions and marketing activities would be based on general moral rules, not a particular religion, we may achieve more effective results and personal and interpersonal conflicts can be reduced.

  17. Just-in-time preemptive single machine problem with costs of earliness/tardiness, interruption and work-in-process

    Directory of Open Access Journals (Sweden)

    Mohammad Kazemi

    2012-04-01

    Full Text Available This paper considers preemption and idle time are allowed in a single machine scheduling problem with just-in-time (JIT approach. It incorporates Earliness/Tardiness (E/T penalties, interruption penalties and holding cost of jobs which are waiting to be processed as work-in-process (WIP. Generally in non-preemptive problems, E/T penalties are a function of the completion time of the jobs. Then, we introduce a non-linear preemptive scheduling model where the earliness penalty depends on the starting time of a job. The model is liberalized by an elaborately–designed procedure to reach the optimum solution. To validate and verify the performance of proposed model, computational results are presented by solving a number of numerical examples.

  18. The Machine within the Machine

    CERN Multimedia

    Katarina Anthony

    2014-01-01

    Although Virtual Machines are widespread across CERN, you probably won't have heard of them unless you work for an experiment. Virtual machines - known as VMs - allow you to create a separate machine within your own, allowing you to run Linux on your Mac, or Windows on your Linux - whatever combination you need.   Using a CERN Virtual Machine, a Linux analysis software runs on a Macbook. When it comes to LHC data, one of the primary issues collaborations face is the diversity of computing environments among collaborators spread across the world. What if an institute cannot run the analysis software because they use different operating systems? "That's where the CernVM project comes in," says Gerardo Ganis, PH-SFT staff member and leader of the CernVM project. "We were able to respond to experimentalists' concerns by providing a virtual machine package that could be used to run experiment software. This way, no matter what hardware they have ...

  19. Design of Demining Machines

    CERN Document Server

    Mikulic, Dinko

    2013-01-01

    In constant effort to eliminate mine danger, international mine action community has been developing safety, efficiency and cost-effectiveness of clearance methods. Demining machines have become necessary when conducting humanitarian demining where the mechanization of demining provides greater safety and productivity. Design of Demining Machines describes the development and testing of modern demining machines in humanitarian demining.   Relevant data for design of demining machines are included to explain the machinery implemented and some innovative and inspiring development solutions. Development technologies, companies and projects are discussed to provide a comprehensive estimate of the effects of various design factors and to proper selection of optimal parameters for designing the demining machines.   Covering the dynamic processes occurring in machine assemblies and their components to a broader understanding of demining machine as a whole, Design of Demining Machines is primarily tailored as a tex...

  20. Method of calculation and construction of arrangement sketchy of stone-working machine for the processing of geometrically-complex surfaces of wares of large gabarit

    OpenAIRE

    Чемоданов, Петро Арисович

    2016-01-01

    In the article the method of calculation of basic knots and arrangement sketchy of stone-working gantry milling mapping machine is offered with curvilinear working motion of light cart for the processing of geometrically-complex surfaces on the stoning purveyance of large gabarit.

  1. The deleuzian abstract machines

    DEFF Research Database (Denmark)

    Werner Petersen, Erik

    2005-01-01

    production. In Kafka: Toward a Minor Literature, Deleuze and Guatari gave the most comprehensive explanation to the abstract machine in the work of art. Like the war-machines of Virilio, the Kafka-machine operates in three gears or speeds. Furthermore, the machine is connected to spatial diagrams...

  2. Quantify work load and muscle functional activation patterns in neck-shoulder muscles of female sewing machine operators using surface electromyogram.

    Science.gov (United States)

    Zhang, Fei-Ruo; He, Li-Hua; Wu, Shan-Shan; Li, Jing-Yun; Ye, Kang-Pin; Wang, Sheng

    2011-11-01

    Work-related musculoskeletal disorders (WMSDs) have high prevalence in sewing machine operators employed in the garment industry. Long work duration, sustained low level work and precise hand work are the main risk factors of neck-shoulder disorders for sewing machine operators. Surface electromyogram (sEMG) offers a valuable tool to determine muscle activity (internal exposure) and quantify muscular load (external exposure). During sustained and/or repetitive muscle contractions, typical changes of muscle fatigue in sEMG, as an increase in amplitude or a decrease as a shift in spectrum towards lower frequencies, can be observed. In this paper, we measured and quantified the muscle load and muscular activity patterns of neck-shoulder muscles in female sewing machine operators during sustained sewing machine operating tasks using sEMG. A total of 18 healthy women sewing machine operators volunteered to participate in this study. Before their daily sewing machine operating task, we measured the maximal voluntary contractions (MVC) and 20%MVC of bilateral cervical erector spinae (CES) and upper trapezius (UT) respectively, then the sEMG signals of bilateral UT and CES were monitored and recorded continuously during 200 minutes of sustained sewing machine operating simultaneously which equals to 20 time windows with 10 minutes as one time window. After 200 minutes' work, we retest 20%MVC of four neck-shoulder muscles and recorded the sEMG signals. Linear analysis, including amplitude probability distribution frequency (APDF), amplitude analysis parameters such as roof mean square (RMS) and spectrum analysis parameter as median frequency (MF), were used to calculate and indicate muscle load and muscular activity of bilateral CES and UT. During 200 minutes of sewing machine operating, the median load for the left cervical erector spinae (LCES), right cervical erector spinae (RCES), left upper trapezius (LUT) and right upper trapezius (RUT) were 6.78%MVE, 6.94%MVE, 6

  3. When gender bumps into health and safety training: working conditions, readings and challenges drawn from a case study in an industrial chemicals company.

    Science.gov (United States)

    Vasconcelos, Ricardo; Teixeira, Sandra; Castelhano, Joana; Lacomblez, Marianne

    2012-01-01

    Health, safety and environmental issues are at present a social concern and an increasingly referred topic in the so called gender studies. This paper focuses on the relations between training, gender and risk perception in an industrial chemicals company, in Portugal, characterized by a mainly male population and by the presence of high occupational and environmental hazards. After characterizing the company and the training project that started up this reflection, the paper presents the reasons for its focus on gender followed by the essential methodological explanations: 14 interviews were made with male and female workers from the company; their content was transcribed from the audio recordings and it was systematically analyzed. A gender-attentive socio demographic analysis was also undertaken. Although at the beginning the company did not consider the gender issues as a problem nor was it the central topic of the training, which focused on the prevention of occupational and environmental hazards, the results reveal that the gender factor brought to light some working conditions, which so far have not been properly discussed within the group meetings. As a consequence, there is now room for the transformation of the representations on those working conditions.

  4. Evaluation of physical health and its relation with history of work accidents in workers of the Central Iron Ore Company of Iran

    Directory of Open Access Journals (Sweden)

    Gholam Hossein Halvani

    2013-01-01

    Full Text Available Aims: This study was conducted to determine the state of physical symptoms of the Iranian Central Iron Ore Company workers and its relation with history of work accidents. Materials and Methods: This cross-sectional descriptive study was performed at the Iranian Central Iron Ore Company and included 388 workers sampled randomly out of 2100 workers. Research tool was a two-part questionnaire that its reliability was determined by some of researchers. Data was analyzed by SPSS (Statistical Package for Social Science software and statistical tests included variance analysis and Pearson′ correlation tests. Results: According to the findings, 80.9% had favorable physical health conditions and there was a significant relationship between physical health condition, history of work accidents, cigarette smoking and type of work. Conclusion: Considering the strong relationship between physical health and history of work accidents, it is proposed that high-level managers of the Central Iron Ore Company of Iran should pay special attention to the improvement of physical health, psychological, social, and welfare levels.

  5. Virtual Machine Language Controls Remote Devices

    Science.gov (United States)

    2014-01-01

    Kennedy Space Center worked with Blue Sun Enterprises, based in Boulder, Colorado, to enhance the company's virtual machine language (VML) to control the instruments on the Regolith and Environment Science and Oxygen and Lunar Volatiles Extraction mission. Now the NASA-improved VML is available for crewed and uncrewed spacecraft, and has potential applications on remote systems such as weather balloons, unmanned aerial vehicles, and submarines.

  6. An Analysis of the Effect of the Implementation of an Integrated Management System (IMS) on Work Ergonomics in an O&M Power Plant Company

    OpenAIRE

    Dewi Permata Ifadiana; Juli Soemirat

    2016-01-01

    Ergonomics has developed significantly for the prevention of related accidents. Its implementation, however, depends on the existing management system within a company. The integrated management system (IMS) is frequently implemented in industry, which is an integration of ISO 9001, ISO 14001, and OHSAS 18001. The objectives of this research were to analyze the effects of IMS implementation on work ergonomics and to find the influencing factors. The methods used were the 4x4 method for invest...

  7. The psychological relationship between companies and freelancers: An empirical study of the commitment and the work-related expectations of freelancers

    OpenAIRE

    Süß, Stefan; Kleiner, Markus

    2007-01-01

    For some years now a tendency towards a more flexible shaping of employment has been observable. Little research, however, has been dedicated to the question of how relevant this is for the commitment of freelance employees. Therefore the present paper first reverts to the question as to whether - and if so, under what preconditions - freelancers are likely to feel commitment towards the company that employs them. Second, the paper identifies clusters of freelancers following their work-relat...

  8. Tribology in machine design

    CERN Document Server

    Stolarski, Tadeusz

    1999-01-01

    ""Tribology in Machine Design is strongly recommended for machine designers, and engineers and scientists interested in tribology. It should be in the engineering library of companies producing mechanical equipment.""Applied Mechanics ReviewTribology in Machine Design explains the role of tribology in the design of machine elements. It shows how algorithms developed from the basic principles of tribology can be used in a range of practical applications within mechanical devices and systems.The computer offers today's designer the possibility of greater stringen

  9. Surfactant/detergent titration analysis method and apparatus for machine working fluids, surfactant-containing wastewater and the like

    Science.gov (United States)

    Smith, D.D.; Hiller, J.M.

    1998-02-24

    The present invention is an improved method and related apparatus for quantitatively analyzing machine working fluids and other aqueous compositions such as wastewater which contain various mixtures of cationic, neutral, and/or anionic surfactants, soluble soaps, and the like. The method utilizes a single-phase, non-aqueous, reactive titration composition containing water insoluble bismuth nitrate dissolved in glycerol for the titration reactant. The chemical reaction of the bismuth ion and glycerol with the surfactant in the test solutions results in formation of micelles, changes in micelle size, and the formation of insoluble bismuth soaps. These soaps are quantified by physical and chemical changes in the aqueous test solution. Both classical potentiometric analysis and turbidity measurements have been used as sensing techniques to determine the quantity of surfactant present in test solutions. This method is amenable to the analysis of various types of new, in-use, dirty or decomposed surfactants and detergents. It is a quick and efficient method utilizing a single-phase reaction without needing a separate extraction from the aqueous solution. It is adaptable to automated control with simple and reliable sensing methods. The method is applicable to a variety of compositions with concentrations from about 1% to about 10% weight. It is also applicable to the analysis of waste water containing surfactants with appropriate pre-treatments for concentration. 1 fig.

  10. Surfactant/detergent titration analysis method and apparatus for machine working fluids, surfactant-containing wastewater and the like

    Science.gov (United States)

    Smith, Douglas D.; Hiller, John M.

    1998-01-01

    The present invention is an improved method and related apparatus for quantitatively analyzing machine working fluids and other aqueous compositions such as wastewater which contain various mixtures of cationic, neutral, and/or anionic surfactants, soluble soaps, and the like. The method utilizes a single-phase, non-aqueous, reactive titration composition containing water insoluble bismuth nitrate dissolved in glycerol for the titration reactant. The chemical reaction of the bismuth ion and glycerol with the surfactant in the test solutions results in formation of micelles, changes in micelle size, and the formation of insoluble bismuth soaps. These soaps are quantified by physical and chemical changes in the aqueous test solution. Both classical potentiometric analysis and turbidity measurements have been used as sensing techniques to determine the quantity of surfactant present in test solutions. This method is amenable to the analysis of various types of new, in-use, dirty or decomposed surfactants and detergents. It is a quick and efficient method utilizing a single-phase reaction without needing a separate extraction from the aqueous solution. It is adaptable to automated control with simple and reliable sensing methods. The method is applicable to a variety of compositions with concentrations from about 1% to about 10% weight. It is also applicable to the analysis of waste water containing surfactants with appropriate pre-treatments for concentration.

  11. Video Assemblages: ‘Machinic Animism’ and ‘Asignifying Semiotics’ in the Work of Melitopoulos and Lazzarato

    Directory of Open Access Journals (Sweden)

    Jay Hetrick

    2014-10-01

    Full Text Available In this paper I will analyse the theoretical background of a single video installation – co-created by Angela Melitopoulos and Maurizio Lazzarato – in order to unpack Deleuze and Guattari’s important but somewhat elusive concepts of ‘machinic animism’ and ‘asignifying semiotics.’ Assemblages (2010 is a three channel audio-visual documentary about the French philosopher and psychoanalyst Félix Guattari. I will argue that, in order to fully understand this work, we must interrogate the incredibly dense theoretical context it inhabits. In particular, I will explore the juncture between Guattari’s ethico-aesthetic ideas concerning a potential ‘ecosophy’ – or theory of the different relations between humans and nature that depends upon a new semiotics – and Lazzarato’s conception of ‘videophilosophy,’ which is grounded upon a politicised Bergsonian onto-aesthetics. I will conclude by criticizing Nicolas Bourriaud’s misappropriation of Guattari in his book Relational Aesthetics and propose that Assemblages demands quite a different and more radical gesture of relationality: one that follows an ecosophical logic that envelopes and imbricates the different levels of nature, the individual, and the social in a way that we might qualify with the term ‘unnatural participation.’

  12. From Technical Transplant to Technical Integration:Taking Nanjing Aotacar Refrigeration Machine Limited Company as Case Study%从技术移植到技术整合--来自南京奥特加的案例分析

    Institute of Scientific and Technical Information of China (English)

    龚毅; 杨利锋

    2014-01-01

    The paper introduces how Nanjing Aotacar Refrigeration Machine Limited Company is developed from technical transplant to technical integration. Then the paper analyzes the basic approach of technology and the secondary innovation. And the inspiration and research conclusion are put forward based on this case study.%本文阐述了南京奥特加冷机有限公司实施技术战略发展的基本过程,重点对其从技术移植到技术整合的技术创新过程中的基本做法进行了分析研究。在案例分析的基础上,得出了相关启示和借鉴。

  13. View of the moving head of the gantry machine and the working area containingthe supply and assembly platforms (trays in green).

    CERN Multimedia

    Alan Honma

    1999-01-01

    The robotic assembly machine consists of the gantry positioning systemoutfitted with pickup tooling heads and camera+microscope for accurateposition measurements. The procedure is to place the components onthe working platforms and the machine applies glue, picks and placesthe silicon sensors and front-end hybrids onto the frames. The components are held in place by vacuum to prevent movement untilthe glue has cured. Up to four modules can be assembled at one time.The platforms are removable allowing assembly to continue on a newset of modules.

  14. Representational Machines

    DEFF Research Database (Denmark)

    Petersson, Dag; Dahlgren, Anna; Vestberg, Nina Lager

    to the enterprises of the medium. This is the subject of Representational Machines: How photography enlists the workings of institutional technologies in search of establishing new iconic and social spaces. Together, the contributions to this edited volume span historical epochs, social environments, technological...

  15. Historical and Epistemological Reflections on the Culture of Machines around the Renaissance: How Science and Technique Work?

    Directory of Open Access Journals (Sweden)

    Raffaele Pisano

    2014-10-01

    Full Text Available This paper is divided into two parts, this being the first one. The second is entitled ‘Historical and Epistemological Reflections on the Culture of Machines around Renaissance: Machines, Machineries and Perpetual Motion’ and will be published in Acta Baltica Historiae et Philosophiae Scientiarum in 2015. Based on our recent studies, we provide here a historical and epistemological feature on the role played by machines and machineries. Ours is an epistemological thesis based on a series of historical examples to show that the relations between theoretical science and the construction of machines cannot be taken for granted, a priori. Our analysis is mainly based on the culture of machines around 15th and 17th centuries, namely the epoch of Late Renaissance and Early Modern Age. For this is the period of scientific revolution and this age offers abundant interesting material for researches into the relations of theoretical science/construction of machines as well. However, to prove our epistemological thesis, we will also exploit examples of machines built in other historical periods. Particularly, a discussion concerning the relationship between science theory and the development of science art crafts produced by non-recognized scientists in a certain historical time is presented. The main questions are: when and why did the tension between science (physics, mathematics and geometry give rise to a new scientific approach to applied discipline such as studies on machines and machineries? What kind of science was used (if at all for projecting machines and machineries? Was science at the time a necessary precondition to build a machine? In the first part we will focus on the difference between Aristotelian-Euclidean and Archimedean approaches and we will outline the heritage of these two different approaches in late medieval and Renaissance science. In the second part, we will apply our reconstructions to some historical and epistemological

  16. Building a Successful Machine Safeguarding Program

    Energy Technology Data Exchange (ETDEWEB)

    McConnell, S

    2003-03-06

    Safeguarding hazards associated with machines is a goal common to all health and safety professionals. Whether the individual is new to the safety field or has held associated responsibilities for a period of time, safeguarding personnel who work with or around machine tools and equipment should be considered an important aspect of the job. Although significant progress has been made in terms of safeguarding machines since the era prior to the organized safety movement, companies continue to be cited by the Occupational Safety and Health Administration (OSHA) and workers continue to be injured, even killed by machine tools and equipment. In the early 1900s, it was common practice to operate transmission machinery (gears, belts, pulleys, shafting, etc.) completely unguarded. At that time, the countersunk set screw used on shafting had not been invented and projecting set screws were involved in many horrific accidents. Manufacturers built machines with little regard for worker safety. Workers were killed or seriously injured before definitive actions were taken to improve safety in the workplace. Many states adopted legislation aimed at requiring machine guarding and improved injury reduction. The first patent for a machine safeguard was issued in 1868 for a mechanical interlock. Other patents followed. As methods for safeguarding machinery and tools were developed, standards were written and programs were set up to monitor factories for compliance. Many of those standards continue to govern how we protect workers today. It is common to see machine tools built in the forties, fifties and sixties being used in machine shops today. In terms of safeguarding, these machines may be considered poorly designed, improperly safeguarded or simply unguarded. In addition to the potential threat of an OSHA citation, these conditions expose the operator to serious hazards that must be addressed. The safety professional can help line management determine workable solutions for

  17. PENERAPAN KEBIJAKAN PENJADWALAN ULANG PADA RUANG LINGKUP SINGLE MACHINE UNTUK MEMINIMASI TOTAL TARDINESS (Studi Kasus di PT. Indonesia Steel Tube Works

    Directory of Open Access Journals (Sweden)

    Denny Nurkertamanda

    2012-02-01

    Full Text Available Customer satisfaction is the most important thing to be considered to keep the customer trust of a productor even of a company. Giving the satisfaction to the customer can be achieved by several ways and on timedelivery product is one of them. It is true that some problems can often occur during that achievement andmay hinder the on time delivery fulfillment. One of the major elements that hold the key role of on timedelivery fulfillment is production scheduling. The implementation of appropriate production schedulingpolicy will determine the accomplishment of on time delivery fulfillment in some ways. This statement isalso works for Indonesia Steel Tube Works Ltd., as a company that always cares about the customersatisfaction on quality and on time delivery. If we observe the production scheduling records of IndonesiaSteel Tube Works Ltd. we can find some lateness problems that in some case happened in an extensiveinterval of tardiness. The company only runs the production scheduling based on the group of pipediameter. This policy seems cannot well handle the rush orders that often emerge on every schedulingperiod and effect in tardiness problems. The company needs to consider the rescheduling policy with theaim of reducing the tardiness that often emerges because of the rush order disruption.

  18. Evaluating work and training within an intercommunicating process of change: reflections drawn from a case study on a chemicals industrial company in Portugal.

    Science.gov (United States)

    Vasconcelos, Ricardo; Silva, Daniel; Pinto, Ricardo; Duarte, Sérgio

    2012-01-01

    The new challenges in the field of Health and Safety at Work require the implementation of more comprehensive and participatory interventions, in order to have a real impact on the working conditions. Matriosca Model has sought over the years to involve workers in the construction of new working conditions, promoting transformation through training and recreating training from the transformation. This article seeks to present some of the results of the implementation of the Matriosca Model on a chemicals industrial company regarding the many changes that it promoted, how these changes have evolved through time, how the dimensions of training and transformation interact and what the participants' perception of the intervention was. The conclusions drawn allow a richer evaluation of the process, which can enhance the intercommunicating nature between training and transformation, and what impact this has on the actual work.

  19. On machines and instruments (II: The world of the eye in the work of E.T.A. Hoffmann

    Directory of Open Access Journals (Sweden)

    Montiel, Luis

    2008-12-01

    Full Text Available Continuing with the subject of the previous work, this article considers the whole series of problems connected to the question of the vision provoked by the mere existence of the body of the automaton. The eyes of the android and, above all, the reactions aroused by looking at these human- shaped machines are the object of Hoffman’s reflections, from a viewpoint apparently firmly set within the Goethean concept of the «world of the eye» — Welt des Auges. Similarly, there is also an in-depth analysis from this same perspective of the instrumental approach to natural reality as it had been perceived in science since the seventeenth century.

    Continuando con lo desarrollado en el trabajo precedente se estudia en éste el conjunto de problemas vinculados al tema de la visión que suscita la mera existencia del cuerpo del autómata. Los ojos del androide y, sobre todo, las reacciones suscitadas por la contemplación de estas máquinas de aspecto humano, son objeto de la reflexión de Hoffmann desde una postura que parece instalarse en la noción goetheana de un «mundo del ojo» —Welt des Auges—. Desde esta perspectiva se despliega así mismo una aguda crítica del abordaje instrumental de la realidad natural tal como, desde el siglo XVII, venía planteándose en la ciencia.

  20. Quantify work load and muscle functional activation patterns in neck-shoulder muscles of female sewing machine operators using surface electromyogram

    Institute of Scientific and Technical Information of China (English)

    ZHANG Fei-ruo; HE Li-hua; WU Shan-shan; LI Jing-yun; YE Kang-pin; WANG Sheng

    2011-01-01

    Background Work-related musculoskeletal disorders (WMSDs) have high prevalence in sewing machine operators employed in the garment industry.Long work duration,sustained low level work and precise hand work are the main risk factors of neck-shoulder disorders for sewing machine operators.Surface electromyogram (sEMG) offers a valuable tool to determine muscle activity (internal exposure) and quantify muscular load (external exposure).During sustained and/or repetitive muscle contractions,typical changes of muscle fatigue in sEMG,as an increase in amplitude or a decrease as a shift in spectrum towards lower frequencies,can be observed.In this paper,we measured and quantified the muscle load and muscular activity patterns of neck-shoulder muscles in female sewing machine operators during sustained sewing machine operating tasks using sEMG.Methods A total of 18 healthy women sewing machine operators volunteered to participate in this study.Before their daily sewing machine operating task,we measured the maximal voluntary contractions (MVC) and 20%MVC of bilateral cervical erector spinae (CES) and upper trapezius (UT) respectively,then the sEMG signals of bilateral UT and CES were monitored and recorded continuously during 200 minutes of sustained sewing machine operating simultaneously which equals to 20 time windows with 10 minutes as one time window.After 200 minutes' work,we retest 20%MVC of four neck-shoulder muscles and recorded the sEMG signals.Linear analysis,including amplitude probability distribution frequency (APDF),amplitude analysis parameters such as roof mean square (RMS) and spectrum analysis parameter as median frequency (MF),were used to calculate and indicate muscle load and muscular activity of bilateral CES and UT.Results During 200 minutes of sewing machine operating,the median load for the left cervical erector spinae (LCES),right cervical erector spinae (RCES),left upper trapezius (LUT) and right upper trapezius (RUT) were 6.78%MVE,6.94

  1. On machines and instruments (I: The automaton’s body in the work of E.T.A. Hoffmann

    Directory of Open Access Journals (Sweden)

    Montiel, Luis

    2008-06-01

    Full Text Available Immediately after becoming interested in animal magnetism, and undoubtedly as a result of this interest, E.T.A. Hoffmann used automata as the central characters in some of his most notable works. This paper aims to show how this interest reveals the author’s critical attitude towards a conception of the human being which, developing in parallel to anatomy-based medicine, had led in the eighteenth century to a doctrine whose most complete expression is to be found in L'homme machine, by J. O. De La Mettrie. Nowadays we can see these tales, like those dedicated to animal magnetism, as a cry of alarm against one of the consequences of such a mechanical conception of a human being: the growth of «biopower», or of «biopolitics», terms coined by Foucault in his last works; but also against the risks entailed by the Promethean drive of modernity.

    Inmediatamente después de interesarse por el magnetismo animal, y seguramente como consecuencia de dicho interés, E.T.A. Hoffmann hizo de los autómatas personajes centrales en algunas de sus obras más notables. El presente trabajo pretende mostrar cómo este interés revela la actitud crítica del escritor hacia un modo de concebir al ser humano que, desarrollándose paralelamente a una medicina basada en la anatomía, había desembocado en el siglo XVIII en un estado de opinión que tiene su más acabada expresión en L’homme machina, de J. O. De La Mettrie. Estos relatos, como los dedicados al magnetismo animal, nos parecen hoy un grito de alerta frente a una de las consecuencias de esa concepción mecánica del ser humano: el despliegue del «biopoder», o de la «biopolítica», conceptos formulados por Foucault en sus últimas obras; pero también frente a los riesgos que entraña la voluntad prometeica de la modernidad.

  2. MORAL HARASSMENT AT WORK: A STUDY OF PRACTICES FOR THE PREVENTION AND FIGHTING OF THE PHENOMENON IN COMPANIES IN THE NORTH OF PARANÁ

    Directory of Open Access Journals (Sweden)

    Rubens de França Teixeira

    2013-12-01

    Full Text Available Moral Harassment, besides being a great challenge for the field of people management, is considered a serious problem within organizations, because it indicates, in most cases, the structural failures resulting from deliberate action or omission from the responsible managers. The discussion of the matter is of great importance, since it allows for stimulating debate about the causes of the incidence of moral harassment in the workplace as well as possible strategies to prevent the problem. Accordingly, this study aimed to conduct a survey of companies operating in the north of Paraná, in order to have a parameter of how they are experiencing moral harassment and how they are trying to fight it. To examine the raised issues, we opted for a non-probabilistic intentional sample, composed of five major companies that received awards in recent years directed to their people management policies. This criterion was relevant as companies sought to possess Human Resources policies that have proven effective along with explicit concern for the quality of life of employees and their working environment. The results showed that these organizations have a range of policies that address the relationships among employees in the workplace and these are considered strong instruments for the prevention of moral harassment. However, they do not have specific policies to fight the discussed phenomenon.

  3. Issues for resolving adverse effects on the safety culture of human work underload and workload transitions in complex human-machine systems

    Energy Technology Data Exchange (ETDEWEB)

    Ryan, T.G.

    1996-08-01

    A workshop was conducted whose specific purpose was to build on earlier work of the US National Research Council, US federal government agencies, and the larger human factors community to: (1) clarify human factors issues pertaining to degraded safety performance in advanced human-machine systems(e.g., nuclear production, transportation, aerospace) due to human work underload and workload transition, and (2) develop strategies for resolving these issues. The workshop affirmed that: (1) work underload and workload transition are issues that will have to be addressed by designers of advanced human-machine systems, especially those relying on automation, if cost, performance, safety, and operator acceptability are to be optimized, (2) human machine allocation models, standards and guidelines which go beyond simple capability approaches will be needed to preclude or seriously diminish the work underload and workload transition problems, and (3) the 16 workload definition, measurement, situational awareness, and trust issues identified during the workshop, need resolution if these models, standards, and guidelines are to be achieved.

  4. An industrial sewing machine variable speed controller

    Science.gov (United States)

    Estes, Christa; Spiggle, Charles; Swift, Shannon; Vangeffen, Stephen; Youngner, Frank

    The apparel industry is attempting to move in a new direction in the coming decade. Since the invention of an electrically powered sewing machine, the operator has been seated. Today, companies are switching from a sit down operation to a stand up operation involving modular stations. The old treadle worked well with the sitting operator, but problems have been found when trying to use the same treadle with a standing operator. This report details a new design for a treadle to operate an industrial sewing machine that has a standing operator. Emphasis is placed on the ease of use by the operator, as well as the ergonomics involved. Procedures for testing the design are included along with possible uses for the treadle in other applications besides an industrial sewing machine.

  5. An Analysis of the Effect of the Implementation of an Integrated Management System (IMS on Work Ergonomics in an O&M Power Plant Company

    Directory of Open Access Journals (Sweden)

    Dewi Permata Ifadiana

    2016-05-01

    Full Text Available Ergonomics has developed significantly for the prevention of related accidents. Its implementation, however, depends on the existing management system within a company. The integrated management system (IMS is frequently implemented in industry, which is an integration of ISO 9001, ISO 14001, and OHSAS 18001. The objectives of this research were to analyze the effects of IMS implementation on work ergonomics and to find the influencing factors. The methods used were the 4x4 method for investigating accidents; interviews; and a questionnaire for workers and managers at an electricity company. The subjects were divided into three levels, namely: top management, middle management, and workers. Logistic regression was used to analyze and estimate the effects of one or more management variables on ergonomics related accidents. The results showed that the implementation of IMS has supported work ergonomics very well based on the average scores, which ranged from 2.99 to 3.38. The logistic regression showed that the most influential IMS on work ergonomics was the Do (D of Deming’s PDCA cycle, whereas the most influential parameter for ergonomics accident prevention was Policy (P and Do (D at the top management level.

  6. Development of Web-based Virtual Training Environment for Machining

    Science.gov (United States)

    Yang, Zhixin; Wong, S. F.

    2010-05-01

    With the booming in the manufacturing sector of shoe, garments and toy, etc. in pearl region, training the usage of various facilities and design the facility layout become crucial for the success of industry companies. There is evidence that the use of virtual training may provide benefits in improving the effect of learning and reducing risk in the physical work environment. This paper proposed an advanced web-based training environment that could demonstrate the usage of a CNC machine in terms of working condition and parameters selection. The developed virtual environment could provide training at junior level and advanced level. Junior level training is to explain machining knowledge including safety factors, machine parameters (ex. material, speed, feed rate). Advanced level training enables interactive programming of NG coding and effect simulation. Operation sequence was used to assist the user to choose the appropriate machining condition. Several case studies were also carried out with animation of milling and turning operations.

  7. Impact of increasing productivity on work content and psychosocial work characteristics in Chaku-Chaku assembly lines - a follow-up study in a German automotive manufacturing company.

    Science.gov (United States)

    Enríquez-Díaz, José-Alonso; Kotzab, Daniel; Sytch, Alina; Frieling, Ekkehart

    2012-01-01

    The current study aims at evaluating the reorganization of work processes on the basis of studies of three assembly lines in a well known component manufacture of the German automotive industry. It is of particular interest to evaluate the impact of the introduction of Chaku-Chaku assembly lines on the production goals, distribution of activities during one typical work day and psychosocial characteristics of the work environment. Findings indicate that the Chaku-Chaku assembly lines could represent a successful production strategy in order to enhance the output levels of work systems. However, the data show that interviewed assembly workers have spent more time on value added activities than before. The intensive perception of the time spent on main work activities (direct value added activities) and a simultaneous decrease of available discretionary time between work tasks seem to be related to the low level of the reported psychosocial work characteristics.

  8. Choice of material and development of technology to manufacture the working parts of a rotor operating in machine for turning of triangular heaps

    Directory of Open Access Journals (Sweden)

    W. Uhl

    2008-07-01

    Full Text Available The theoretical part of the study discloses the genesis of the research which originated from a possibility of replacing the so far used expensive machine parts with parts cheaper and yet offering similar quality and performance life. A short characteristic of the machine was given where the main operating parts made so far from steel were replaced with parts made from cast iron. The equipment and its main applications were described.In the research part of the study several types of alloys were proposed. Their use is expected to ensure the required performance life of parts combined with price reduction. A short characteristic of the proposed material was given. A technology of making moulds for the said machine parts was developed. Using this technology, the respective moulds were made and poured next with three cast alloys.One of the proposed materials was subjected to four types of the heat treatment, two alloys used as reference materials were left in as-cast state. The castings were fettled and weighed. The hardness of the cast materials was measured.The working (turning parts were delivered for operation to a sewage-treatment plant where, after assembly in a turning machine, the performance tests were conducted.

  9. Investigation of the starting modes of the low-temperature refrigerating machines working on the mixtures of refrigerants

    Energy Technology Data Exchange (ETDEWEB)

    Rozhentsev, Andrey; Naer, Vjacheslav [Odessa State Academy of Refrigeration, Dvorjanskaya Str. 1/3, 65082 Odessa (Ukraine)

    2009-08-15

    The starting mode of a small low-temperature Joule-Thomson refrigerating machine is in focus of the experimental investigation reported here. The refrigerating machine operates by the Linde cycle. A mixture of hydrocarbons - isobutane/ethane/methane - is used as a refrigerant. The object of cooling is a small testing chamber to be cooled down and thermostabilized at the temperature level of (-70,.., -80) C. The starting modes were studied under heavy-duty heat load on the system resulting from the initial thermal equilibrium between the whole system and ambience. The experimental data demonstrate a crucial effect of the low-boiling mixture components condensation in the refrigerant high-pressure flow on the machine starting performance. Excessive values of the discharge pressure, compression ratio and compressor input power have been observed during the start-up process which may last for tens of minutes affecting the refrigerating machine reliability. Some probable causes of the phenomena and countermeasures are pointed out. (author)

  10. Energy companies in the Netherlands work on sustainable use of natural gas. Manifesto; Nederlandse bedrijven werken aan duurzame gasinzet. Manifest

    Energy Technology Data Exchange (ETDEWEB)

    Ten Berge, J.B.M. [ENECO Energie, Rotterdam (Netherlands); Boersma, M.A.M. [Essent, Arnhem (Netherlands); Dijkgraaf, H.G. [Nederlandse Gasunie, Groningen (Netherlands); Platenkamp, R.J. [Nederlandse Aardolie Maatschappij NAM, Assen (Netherlands)

    2004-06-29

    This manifesto concerns the vision of several Dutch energy companies with regard to sustainable use of natural gas in the Netherlands. The aim is to realize innovations in the field of efficient supply of natural gas, improving the efficiency of gas appliances, use of natural gas in transportation, development of 'virtual power plants', and experimental applications for 'green' gas and hydrogen. [Dutch] Dit manifest beschrijft de visie en ambitie die wij hebben ten aanzien van de verduurzaming van het gasgebruik in Nederland. Met onze ondertekening maken wij als spelers op de Nederlandse gasmarkt ons gezamenlijke streven kenbaar om innovaties te realiseren die bedoeld zijn als gerichte stappen op weg naar een duurzame gas- en energieinzet. De acties richten zich op de volgende terreinen: verdere verhoging van de leveringsefficientie in de aardgasketen als totaal (van put naar pit), verhoging van de efficientie van aardgastoepassingen, inzet van aardgas voor transportdoeleinden, de ontwikkeling van 'virtual power plants' en experimentele toepassingen voor 'groen gas' en waterstof.

  11. Work improvement factors for the amelioration of work ability, with a focus on individual capacity to deal with stress in an IT company.

    Science.gov (United States)

    Ohta, Masanori; Higuchi, Yoshiyuki; Kumashiro, Masaharu; Yamato, Hiroshi; Sugimura, Hisamichi

    2015-03-01

    The aim of this study was to explore factors that ameliorate work ability by focusing on workers' capacity to deal with stress.The subjects were 1,330 workers from the Japanese information technology (IT) sector. Each subject completed questionnaires in 2011 and 2012 that consisted of the work ability index (WAI), the three-item sense of coherence (SOC), and the Mental Health Improvement and Reinforcement Research of Recognition (MIRROR). The results of the WAI were also obtained in 2013. The median SOC score in 2011 was used to divide the subjects into two groups, the Low SOC group and the High SOC group, then we verified the factors that contributed to improved work ability in both of these groups over a two-year period. Results indicate that an improvement in work ability in the Low SOC group could be predicted by giving workers opportunities for education or training, by making efforts to reduce the stress of commuting, by clarifying their assignments, and by establishing support systems when troubles occur. For the High SOC group, such improvements could be predicted by giving workers job control, by giving education or training for the promotion of their abilities, and by establishing a system for assuming responsibility. In conclusion, improvements in the work environment can increase the work ability of Japanese IT workers in conformity with their capacity to deal with stress.

  12. 基于机床做功量的监控系统开发%Development of Monitoring System Based on the Work Load of Machine Tool

    Institute of Scientific and Technical Information of China (English)

    李平; 黄泽森

    2013-01-01

    在分析机床维护保养不良是影响机床可靠性的关键因素的基础上,将一种新的可靠性思想——用户监控维护方法引入数控机床可靠性研究领域中.提出了机床定功维护的概念,并以丝杆螺母副维护保养为例,建立了丝杆螺母副与电机做功关系的数学模型.给出了主轴电机功率的获取方法,并通过对数控系统西门子840D进行二次编程,开发了基于用户角度来提高机床可靠性的用户监控维护系统.该系统在数控机床上的成功应用为机床可靠性的研究提供了一种新的思路和方法.%On the basis of poor maintenance of NC machine tool is the key factor of influencing the machine tool reliability, a new method which called User Monitor and Maintenance was introduced, and a creational concept of maintenance based on work to the field of NC machine reliability research was put forward. By the example of maintenance of ball screw and nut, the math model between the ball screw and nut, and the work of electromotor was established. The method of obtaining power of main spindle motor was given, and the System of User Monitor and Maintenance based on secondary development of NC Simens 840D system by users to improve the reliability of NC machine tool was developed. The successful application of the system on the NC machine tool provides a new method and idea for the research of NC machine tool's reliability.

  13. Institutional limits to the internalization of work systems : A comparative study of three Japanese multinational companies in the UK

    NARCIS (Netherlands)

    Saka, A

    2002-01-01

    This study adopts a multilevel comparative approach to investigating the degree to which Japanese work systems are implemented and internalized in the UK business system. The focus is on the limits to accepting the continuous improvement schemes of Japanese multinational corporations. The article ad

  14. When Machines Design Machines!

    DEFF Research Database (Denmark)

    2011-01-01

    Until recently we were the sole designers, alone in the driving seat making all the decisions. But, we have created a world of complexity way beyond human ability to understand, control, and govern. Machines now do more trades than humans on stock markets, they control our power, water, gas...... and food supplies, manage our elevators, microclimates, automobiles and transport systems, and manufacture almost everything. It should come as no surprise that machines are now designing machines. The chips that power our computers and mobile phones, the robots and commercial processing plants on which we...... depend, all are now largely designed by machines. So what of us - will be totally usurped, or are we looking at a new symbiosis with human and artificial intelligences combined to realise the best outcomes possible. In most respects we have no choice! Human abilities alone cannot solve any of the major...

  15. Quantum machine learning.

    Science.gov (United States)

    Biamonte, Jacob; Wittek, Peter; Pancotti, Nicola; Rebentrost, Patrick; Wiebe, Nathan; Lloyd, Seth

    2017-09-13

    Fuelled by increasing computer power and algorithmic advances, machine learning techniques have become powerful tools for finding patterns in data. Quantum systems produce atypical patterns that classical systems are thought not to produce efficiently, so it is reasonable to postulate that quantum computers may outperform classical computers on machine learning tasks. The field of quantum machine learning explores how to devise and implement quantum software that could enable machine learning that is faster than that of classical computers. Recent work has produced quantum algorithms that could act as the building blocks of machine learning programs, but the hardware and software challenges are still considerable.

  16. Effect of working capital and financial decision making management on profitability of listed companies in Tehran’s securities exchange

    OpenAIRE

    SHAHNAZI, Masoomeh; AZADI, Keyhan

    2015-01-01

    Abstract. Working capital management is one important part of financial management, because it directly affects corporate profitability and its goal is to establish a critical equivalence between maintaining liquidity for supporting daily operations and maximization of short- term investment opportunities. So, managers should consider decisions related to finance and effects that these factors have on capital structure up to can acquire enough earnings for securing appropriate return for inve...

  17. ASPECTS OF THE ASSOCIATION OF EFFECTIVE TEAM RELATED VARIABLES IN THE MANAGEMENT OF INTERCULTURAL WORK TEAMS IN MULTINATIONAL COMPANIES

    Directory of Open Access Journals (Sweden)

    BIBU Nicolae

    2013-07-01

    Full Text Available Various phenomena generated by the new context of globalization have focused our research interest towards studying in what ways management of Intercultural Work teams (IWT could and should contribute to the increase of their performance at work. Despite the recognition of the fact that many MNCs fail in the management of IWTs, there is still a significant knowledge gap about their non-functionalities. Managerial literature „blames” national and organizational culture differences for the failure of this process. This is because each member brings his own style of work, with his own way of ensuring effective cooperation, making difficult to identify a clear recipe of a team organization and management in intercultural context. Teamwork, managing work teams made the subject of numerous researchers from many fields, denoting so difficult exercise in practice. However, we have identified high performance IWTs whose members are from different countries. Therefore, we assume that their management identified and used methods and instruments able to ensuring IWT performance. If we look at international research, intercultural teams management models have a reductionist and not holistic approach, namely stochastic in terms of selection of specific cultural dimensions cultural models specific to the interest of the researcher. In contrast, in Romania, intercultural management and intercultural management teams performance is less studied. The research presented below is set up to be a part of a pilot study, an exploratory research of how intercultural management assigned dimensions are directly related to the concept of EIA performance dimensions assigned. Our assumption for the empirical research is the following: work team performance (effective, efficient, with a high degree of satisfaction of its members is the result of application performance management in the context of a particular style of interaction specific team. Because the dependent

  18. Continual Improvement In Small Soaps Company

    Directory of Open Access Journals (Sweden)

    Borget Alfred Anoye

    2015-08-01

    Full Text Available Abstract In this paper using quality management tools we track root causes and principal causes of the rising manufacturing cost of the bar soaps and propose solution to solve the problem. First we identify and analyze the roots causes of problem with the Fishbone Diagram. We use multivoting approach to reduce roots causes to main causes from which we identify classify and analyze principal causes using the Pareto Diagram. We then perform a deep analysis of these principal causes using the 5 whys analysis technique. Three principal causes were found amp61480high level of overtime poor machine performance and poor employees performanceamp61481 and were weighing 55 of the problem. For that reason working on these areas was necessary to address the problem of the rising manufacturing cost of the bar soaps. With the result we then use the PDCA 7 steps of TQM method to solve the problem of the rising manufacturing cost by testing whether expanding production capacity leads to performance improvements of these areas. We decide to expand production capacity by adding two more machine groups. Six months after implementation of the proposed solution the result shows an enhanced workload and schedule an increased production capacity an elimination of the overtime issue an increased machines performance and an improved workers performance. Two main savings were achieved as wage costs and maintenance costs. As a result while competitors bar soaps prices increased the company bar soaps price decreased by 50 making the company bar soaps more attractive on market as this performance permitted the company to apply price reduction at the retailer level.

  19. A novel triple-actuating mechanism of an active air mount for vibration control of precision manufacturing machines: experimental work

    Science.gov (United States)

    Kim, Hyung-Tae; Kim, Cheol-Ho; Choi, Seung-Bok; Moon, Seok-Jun; Song, Won-Gil

    2014-07-01

    With the goal of vibration control and isolation in a clean room, we propose a new type of air mount which consists of pneumatic, electromagnetic (EM), and magnetorheological (MR) actuators. The air mount is installed below a semiconductor manufacturing machine to reduce the adverse effects caused by unwanted vibration. The proposed mechanism integrates the forces in a parallel connection of the three actuators. The MR part is designed to operate in an air spring in which the EM part is installed. The control logic is developed with a classical method and a switching mode to avoid operational mismatch among the forces developed. Based on extended microprocessors, a portable, embedded controller is installed to execute both nonlinear logic and digital communication with the peripherals. The pneumatic forces constantly support the heavy weight of an upper structure and maintain the level of the air mount. The MR damper handles the transient response, while the EM controller reduces the resonance response, which is switched mutually with a threshold. Vibration is detected by laser displacement sensors which have submicron resolution. The impact test results of three tons load weight demonstrate practical feasibility by showing that the proposed triple-actuating mechanism can reduce the transient response as well as the resonance in the air mount, resulting in accurate motion of the semiconductor manufacturing machine.

  20. Shell Measuring Machine. History and Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Birchler, Wilbur D. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Fresquez, Philip R. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2000-06-01

    Commercialization of the Ring Rotacon Shell Measuring Machine project is a CRADA (NO. LA98C10358) between The University of California (Los Alamos National Laboratory) and Moore Tool Company, Bridgeport, CT. The actual work started on this CRADA in December of 1998. Several meetings were held with the interested parties (Los Alamos, Oak Ridge, Moore Tool, and the University of North Carolina). The results of these meetings were that the original Ring Rotacon did not measure up to the requirements of the Department of Energy and private industry, and a new configuration was investigated. This new configuration (Shell Measuring Machine [SMM]) much better fits the needs of all parties. The work accomplished on the Shell Measuring Machine in FY 99 includes the following; Specifications for size and weight were developed; Performance error budgets were established; Designs were developed; Analyses were performed (stiffness and natural frequency); Existing part designs were compared to the working SMM volume; Peer reviews were conducted; Controller requirements were studied; Fixture requirements were evaluated; and Machine motions were analyzed. The consensus of the Peer Review Committee was that the new configuration has the potential to satisfy the shell inspection needs of Department of Energy as well as several commercial customers. They recommended that more analyses be performed on error budgets, structural stiffness, natural frequency, and thermal effects and that operational processes be developed. Several design issues need to be addressed. They are the type of bearings utilized to support the tables (air bearings or mechanical roller type bearings), the selection of the probes, the design of the probe sliding mechanisms, and the design of the upper table positioning mechanism. Each item has several possible solutions, and more work is required to obtain the best design. This report includes the background and technical objectives; minutes of the working

  1. Research on Strategies of Ideological and Political Work in Oilfield Companies%油田企业思想政治工作探析

    Institute of Scientific and Technical Information of China (English)

    孙慧君

    2014-01-01

    This paper analyzes the basic situation of the current deological and political work of Oilfield companies .There still exist many problems and disadvantages in the work such as the simplification of management model ,the obsolescence of the operation mechanism ,the lag of working method and the weakening of its positive function .The thesis presents that the reasons for these problems and disadvantages includes changes in the thought of the staff ,in the content and operating mecha-nism and the adjustment of the work's management system ,as well as the lack of work team .The specific and targeted strate-gies will be put forward to solve these problems from the Leading mechanism ,the operating system the innovation of work pat-tern and personnel construction .%油田企业思想政治工作经过多年的探索和积累,成效显著,在油田发展中发挥了巨大作用。但随着油田面临的形势、任务和环境的变化,思想政治工作必须与时俱进,在工作思路、方法和模式上进行适当调整,克服管理模式单一、运行机制陈旧、工作方式滞后、应有作用逐渐削弱的矛盾和问题,应从领导机制、运行体系、方式方法、政工队伍等方面加强和改进。

  2. Justification for parameters of a dynamic stabilizer of the experimental stand mobile unit in studying of active rotational working tools of tiller machines

    Directory of Open Access Journals (Sweden)

    Vladimir F. Kupryashkin

    2017-03-01

    Full Text Available Introduction: The article deals with design options and technological modes of the dynamic stabilizer of the experimental stand mobile unit for studying tillage machine active rotating work tools. Based on theoretical and experimental studies, the possibility the movable module instability was discovered. This negatively affects on implementing the experiment program trough the especific method. The need in engineering solutions for the defect correction is shown. In addition, the authors consider the structural features and characteristics of the used devices for providing the stabilization of the movable module in the study of active rotating work tools of tillage machines. An electromagnetic brake dynamic stabilizer in the structure of the existing rolling module was proposed as an engineering device. Materials and Methods: A theoretical study of rolling module stability, based on synthesis of basic regulations and laws of mechanics related to active rotating work tools was conducted. As a result of the theoretical research, a design scheme of movable module loading was created. This scheme includes the design features and structural power factors. Results: A database representing the settings of power specification in the motion stability determining the mobile unit was created. Further use of the database values allow supporting the most optimal location of the electromagnetic brake with its design options. Discussion and Conclusions: The research of the electromagnetic brake in a mobile unit promoted stabilizing the unit movement, increased the frequency of its use and provided data that are more precise during experiments.

  3. Parametric Design Based on SolidWorks for Industrial Sewing Machine Casing%基于 SolidWorks 的工业平缝机机壳参数化设计

    Institute of Scientific and Technical Information of China (English)

    郭莹; 曹巨江; 张科宇

    2016-01-01

    以面向对象的VB 6.0为开发平台,结合Access建立的标准数据库,控制服务端SolidWorks二次开发接口的A PI函数,调用对象、属性、方法,实现对工业平缝机机壳参数化模块的二次开发。用该方法可以快速、准确、高效地设计出符合用户要求的工业平缝机机壳的三维模型。%The paper proposes a parametric design method of industrial sewing machine casing by use of SolidWorks .This method is based on the object-oriented VB language platform and the standard database established by Access ,to accomplish the secondary development of the parametric design module of the industrial sewing machine casing through controlling API function offered by secondary development interface of server SolidWorks and calling object ,attribute and method .The proposed method can quickly establish the three-dimensional model of the industrial sewing machine casing and it is accurate and efficient to meet the requirements of the user .

  4. The concurrent validity of the technical test battery as an indicator of work performance in a telecommunications company

    Directory of Open Access Journals (Sweden)

    Marelize Barnard

    2005-10-01

    Full Text Available The purpose of this study was to assess the concurrent validity of the Technical Test Battery (TTB in a South African telecommunications institution. The Technical Test Battery (TTB was administered to a sample of 107 technical officers. Their test scores were compared to the scores obtained from a job performance rating scale specifically designed for this position on the basis of a thorough job analysis. The TTB demonstrated high concurrent validity as an indicator of work performance for technical posts in the telecommunications environment. These results suggest that the TTB may have a high predictive validity for performance in technical positions. The findings and implications of the study are discussed. Opsomming Die doel van hierdie studie was om die samevallende geldigheid van die “Technical Test Battery (TTB�? in ’n Suid-Afrikaanse telekommunikasie instansie te bepaal. Die TTB is op ’n steekproef van 107 tegniese personeel toegepas. Die toetstellings is in verband gebring met die tellings van ’n werksprestasiemaatstaf wat spesifiek vir die pos ontwikkel is op grond van ’n deeglike posanalise. Daar is bevind dat die TTB ’n hoë samevallende geldigheid as aanduider van werksprestasie vir tegniese poste in the telekommunikasiebedryf toon. Dié resultate dui op ’n sterk moontlikheid dat die TTB ’n goeie voorspeller van werksprestasie vir tegniese beroepe kan wees. Die bevindinge en implikasies van die studie word bespreek.

  5. Simulation Modeling and Analysis of Operator-Machine Ratio

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Based on a simulation model of a semiconductor manufacturer, operator-machine ratio (OMR) analysis is made using work study and time study. Through sensitivity analysis, it is found that labor utilization decreases with the increase of lot size.Meanwhile, it is able to identify that the OMR for this company should be improved from 1∶3 to 1∶5. An application result shows that the proposed model can effectively improve the OMR by 33%.

  6. Working capital in mergers and acquisitions in the oil industry: issues and impacts over the company valuation; Capital de giro em aquisicoes de empresas na industria do petroleo: consideracoes e impactos sobre o valor do negocio

    Energy Technology Data Exchange (ETDEWEB)

    Soares, Fabio Maia; Junior, Ewerton R.W.P. [PETROBRAS, Rio de Janeiro, RJ (Brazil); Mendes, Andre P. A. [Banco Nacional de Desenvolvimento Economico e Social (BNDES), Rio de Janeiro, RJ (Brazil)

    2008-07-01

    The necessary working capital required to maintain a sustainable company operation could be relevant in the oil industry, specially in high prices times. Their proper consideration in companies valuation contribute for economic model accuracy, providing reliable information to the investment decision. This article has the objective of discussing the general concept of working capital, taking into account peculiar characteristics concerning their applicability in economic analysis of mergers and acquisition. Aspects related to the forecast cash flow, perpetuity, besides issues concerning its financing are discussed. Further, it is also spotted the necessary concerns during the elaboration of prices proposals, regulatory and management factors influence, over its adequate dimensioning, and also the methodological simplifications usually used in forecasting. Lastly, the work aim to emphasize the importance of the working capital changes in all economic evaluation developed by the discounted cash flow methodology, in order to guarantee methodological consistency in the company valuation. (author)

  7. Company analysis

    DEFF Research Database (Denmark)

    Jenster, Per V.; Hussey, David

    This volume looks at the company appraisal as a whole, examining the continuing need to appraise companies as part of the continuing strategy process. Building from a sound basis of theory, the text aims to be practical and to give guidance to senior managers and others involved in the strategy p...

  8. Design of Fruit Sorting Machine of Weighing Type Based on SolidWorks%基于SolidWorks的称重式水果分选机设计

    Institute of Scientific and Technical Information of China (English)

    葛纪帅; 黄文倩; 张弛; 密雅荣

    2012-01-01

    称重式水果分选机在水果分级市场应用最为广泛,对其传统的研究方法是以二维平面图来设计其结构,抽象且很难修改.因此利用SolidWorks软件设计了一种新型称重式水果分选机,通过SolidWorks实现了对托盘称重式水果分选机支架、托盘、传动系统和链轮轴的设计,建立了电动机减速器和轴承座的三维模型,最终实现了称重式水果分选机的整体装配,系统的对分选机零件进行三维建模、虚拟装配、干涉分析和初步的有限元分析.结果表明,SolidWorks有助于新型农业机械的设计,缩短了其开发周期,提高其设计的质量.%Fruit sorting machine of weighing type was used most widely in fruit grading market, which study on its structure adopting traditional 2D plan method is too abstract to modify hardly.The re fore a new weighing type of fruit sorting machine was designed using SolidWorks, through which the design for stents,tray institutions ,transmission system and sprocket shaft of the sorting machine was realized,and 3D model for the motor reducer and bearing socket was built so that the overall assembly for the fruit sorting machine was achieved-Afterwards ,3D modeling,virtual assembly as well as compute clash and primary FEM analysis were carried out for parts of machine. The application results show that Solidworks is beneficial to new agricultural machinery design,which shall shorten the development cycle and improve the design quality

  9. Principal Components of Superhigh-Dimensional Statistical Features and Support Vector Machine for Improving Identification Accuracies of Different Gear Crack Levels under Different Working Conditions

    Directory of Open Access Journals (Sweden)

    Dong Wang

    2015-01-01

    Full Text Available Gears are widely used in gearbox to transmit power from one shaft to another. Gear crack is one of the most frequent gear fault modes found in industry. Identification of different gear crack levels is beneficial in preventing any unexpected machine breakdown and reducing economic loss because gear crack leads to gear tooth breakage. In this paper, an intelligent fault diagnosis method for identification of different gear crack levels under different working conditions is proposed. First, superhigh-dimensional statistical features are extracted from continuous wavelet transform at different scales. The number of the statistical features extracted by using the proposed method is 920 so that the extracted statistical features are superhigh dimensional. To reduce the dimensionality of the extracted statistical features and generate new significant low-dimensional statistical features, a simple and effective method called principal component analysis is used. To further improve identification accuracies of different gear crack levels under different working conditions, support vector machine is employed. Three experiments are investigated to show the superiority of the proposed method. Comparisons with other existing gear crack level identification methods are conducted. The results show that the proposed method has the highest identification accuracies among all existing methods.

  10. Machine learning in image steganalysis

    CERN Document Server

    Schaathun, Hans Georg

    2012-01-01

    "The only book to look at steganalysis from the perspective of machine learning theory, and to apply the common technique of machine learning to the particular field of steganalysis; ideal for people working in both disciplines"--

  11. ELASTIC NONLINEAR DYNAMICS OF MOTION OF SLIDE OF VERTICAL TURNING MACHINE FOR WORKING OF SOLID-ROLLED RAILWAY WHEELS

    Directory of Open Access Journals (Sweden)

    R. P. Pogrebnyak

    2017-08-01

    Full Text Available Purpose. The article is aimed to determine the conditions of a dynamic error formation of contour machine cutting of surface of the real railway wheel flange by the cup-tip tool and propose the ways of reducing the errors. Methodology. The problem was solved by the creation of dynamic nonlinear and elastic calculation model with further modeling of its loading by the external force factors. The values of forces were obtained by analytical and experimental methods. The calculation scheme of the equilibrium support is a nonlinear two-mass system, a dynamic model of slide - single-mass with one degree of freedom. The basis of the mathematical description of technological loads is the results of factory experiments, as well as analytical generalizations obtained as a result of the comparison of several schemes of the formation of the wheel flange. Analytical determination of the components of the cutting force takes into account the changes in the kinematic parameters of the cutting mode when the profiling is done using a shaped tool. Findings. During processing of the wheel flange the radial and axial components of the cutting forces that load slide and slide-block of machine are alternating. There are conditions in drive of slide and slide-block when the gaps appear, and it is possible at any profile geometry of the wheel. The peculiarities of loading of the slide and slide-block forming a flange (with biharmonic allowance cause the occurrence of the processing areas where the gaps increase many times in drives of mechanical transmissions and error of forms increases. The dynamic system of the drive is quite tough and high-frequency and it is sensitive to the presence of gaps. Originality. The author created elastic nonlinear dynamic models of support and slide. In accordance with the model it is written and solved equations of motion of the masses and loading of the connections. The conditions of the stable motion were found. Practical value. It

  12. IMPLEMENTATION OF QUALITATIVE RULES IN COMPANY`S INFORMATION MANAGEMENT

    Directory of Open Access Journals (Sweden)

    Anna WOLNOWSKA

    2012-07-01

    Full Text Available In the article there were presented chosen issues of quality management. Important role of information and work processes in companies were emphasized . Based on eight rules of quality management, TQM standards and ideas of discipline pioneers like Deming, Juran, Crosby and Shewart, author has constructed way of using chosen rules and assumptions to company`s information circulation. Analogy, suggested by author, has not only emphasized importance of information as a company`s resource, but also has pointed to possibility of improving ways of managing this information.

  13. Understanding and Writing G & M Code for CNC Machines

    Science.gov (United States)

    Loveland, Thomas

    2012-01-01

    In modern CAD and CAM manufacturing companies, engineers design parts for machines and consumable goods. Many of these parts are cut on CNC machines. Whether using a CNC lathe, milling machine, or router, the ideas and designs of engineers must be translated into a machine-readable form called G & M Code that can be used to cut parts to precise…

  14. Understanding and Writing G & M Code for CNC Machines

    Science.gov (United States)

    Loveland, Thomas

    2012-01-01

    In modern CAD and CAM manufacturing companies, engineers design parts for machines and consumable goods. Many of these parts are cut on CNC machines. Whether using a CNC lathe, milling machine, or router, the ideas and designs of engineers must be translated into a machine-readable form called G & M Code that can be used to cut parts to precise…

  15. Chaotic Boltzmann machines.

    Science.gov (United States)

    Suzuki, Hideyuki; Imura, Jun-ichi; Horio, Yoshihiko; Aihara, Kazuyuki

    2013-01-01

    The chaotic Boltzmann machine proposed in this paper is a chaotic pseudo-billiard system that works as a Boltzmann machine. Chaotic Boltzmann machines are shown numerically to have computing abilities comparable to conventional (stochastic) Boltzmann machines. Since no randomness is required, efficient hardware implementation is expected. Moreover, the ferromagnetic phase transition of the Ising model is shown to be characterised by the largest Lyapunov exponent of the proposed system. In general, a method to relate probabilistic models to nonlinear dynamics by derandomising Gibbs sampling is presented.

  16. Electrical machines & drives

    CERN Document Server

    Hammond, P

    1985-01-01

    Containing approximately 200 problems (100 worked), the text covers a wide range of topics concerning electrical machines, placing particular emphasis upon electrical-machine drive applications. The theory is concisely reviewed and focuses on features common to all machine types. The problems are arranged in order of increasing levels of complexity and discussions of the solutions are included where appropriate to illustrate the engineering implications. This second edition includes an important new chapter on mathematical and computer simulation of machine systems and revised discussions o

  17. Touch Glaciem : The Touch Screen for Soft Ice Machines

    OpenAIRE

    Sunnegårdh, Sandra; Svensson, Thea

    2012-01-01

    The Chinese company Ocean Power manufactures and exports soft ice cream machines to companies worldwide. Their machines have high functionality and robust design that enables a low-cost manufacturing. All machines have a control panel where settings of the machine and the ice cream can be ranged. The control panel is at present designed in accordance with an old indigenous design tradition. With increasing international influence and contact, the need of functionality and design is changing. ...

  18. Studies on working mechanism of tearing machine for washing rice straw%稻草水洗撕裂机撕裂机理研究

    Institute of Scientific and Technical Information of China (English)

    陈义厚; 贺金满; 雷金华

    2011-01-01

    With development of straw mushroom as edible fungus production of culturing materials in the mushroom industry,the lack of appropriate equipment is found.An equipment for producing bacteria-based edible mushroom is designed by taking rice straw as raw materials-tearing machine for washing rice straw,in which the structure, working principles of the machine were introduced and the working mecha-nism was explored as well.Meanwhile the working process of the tearing knife was introduced, and a geo metrical model for sliding-cutting angle of the knife was established.In addition the motion of the straw in side the machine was analyzed,which results show that the structure is reasonable,the component design is correct,the movement is practica.Thus it is possible to produce edible mushroom with rice straw.%以稻草作为食用菌培养料生产食用菌在食用菌行业早已发展起来,但缺少相应的设备.设计了一种以稻草为原料生产食用菌菌基的设备—稻草水洗撕裂机,对稻草水洗撕裂机的结构、工作原理作了介绍,对稻草水洗撕裂机的撕裂机理进行了探讨,对撕裂刀的工作过程进行了说明,建立了撕裂刀片等滑切角几何模型,并对稻草在撕裂机内的运动进行了分析.结果表明稻草水洗撕裂机结构合理、零部件设计正确、运动过程符合实际,使以稻草为原料生产食用菌成为可能.

  19. Company Development Through the Employees

    DEFF Research Database (Denmark)

    Møller, Niels; Hvenegaard, Hans; Limborg, Hans Jørgen

    2003-01-01

    Human Deveoplment and Working Life - Work for Welfare explores whether the development of human resources at company level can improve individuals' quality of life, companies' possibilities of development, and welfare and democracy in society. Chapter four documents the the proces and results...

  20. Company Development Through the Employees

    DEFF Research Database (Denmark)

    Møller, Niels; Hvenegaard, Hans; Limborg, Hans Jørgen

    2003-01-01

    Human Deveoplment and Working Life - Work for Welfare explores whether the development of human resources at company level can improve individuals' quality of life, companies' possibilities of development, and welfare and democracy in society. Chapter four documents the the proces and results of ...... of changes at the workplace level....

  1. Constructing Control Charts in A Printery Company for Monitoring Paper Thickness and Color Shifts( Bir Basımevinde Kağıt Kalınlığı ve Renk Kaymalarının İzlenmesi İçin Kontrol Kartı Oluşturulması

    Directory of Open Access Journals (Sweden)

    Aşkın ÖZDAĞOĞLU

    2011-01-01

    Full Text Available Assuring the quality of a product is a big problem for all companies. Statistical process control is the main quantitative tool used in TQM. For monitoring the process some statistical process control techniques are used. The most important tool for monitoring the process is quality control chart. Control charts are used in analysis of process changes. Main subject of this study is to construct a quality control chart for offset printing machine in a printery company. Because of the fact that there are some problems in the machines with respect to the color shifting and paper thickness in the output, this study aims at analyzing the production process for decreasing the shifts and the variation in paper thickness. An offset printing machine in the company is selected for constructing the quality control chart. This work focuses on 54*72 Heidelberg offset printing (2 Colors brand printing machine and paper thickness in Advertising and Printing Company.

  2. The work of Otto Fischer and the historical development of his method of principal vectors for mechanism and machine science

    NARCIS (Netherlands)

    Wijk, van der Volkert; Herder, Just L.; Koetsier, T.; Ceccarelli, M.

    2012-01-01

    This article gives an overview of the distinctive work of Otto Fischer (1861-1916) on the motion of the human musculoskeletal system. In order to be able to derive the individual muscle forces for human in motion, he invented the method of principal vectors to describe the motion of the centers-of-m

  3. The Experimental Investigation of The Effect of Machining Parameters on Burr Formation in Drilling of AISI D2 and AISI D3 Cold Work Steels

    Directory of Open Access Journals (Sweden)

    Yavuz Kaplan

    2011-06-01

    Full Text Available In this study, the effect of changing processing parameters on the burr formation ats the exit end of hole during the drilling process in milling machines of CNC (Computer Numerical Control was examined. . In experimental studies, cold work tool steels (AISI D2, 20 HRC and AISI D3, 28 HRC were drilling by HSS cutting tools with four different lengths in two different diameters (Ø 8 mm and Ø 10 mm. Three different cutting speeds (5 m/min, 10 m/min, 15 m/min and three different feed rates values (0.04 mm/rev, 0.05 mm/rev, 0.06 mm/rev were used in experiments. According to outcomes of the experiment, it was detected that burr height decreases depending on feed rates increase and burr height increases depending on the number of holes, cutting speed and material hardness.

  4. Advanced Analysis of Nontraditional Machining

    CERN Document Server

    Tsai, Hung-Yin

    2013-01-01

    Nontraditional machining utilizes thermal, chemical, electrical, mechanical and optical sources of energy to form and cut materials. Advanced Analysis of Nontraditional Machining explains in-depth how each of these advanced machining processes work, their machining system components, and process variables and industrial applications, thereby offering advanced knowledge and scientific insight. This book also documents the latest and frequently cited research results of a few key nonconventional machining processes for the most concerned topics in industrial applications, such as laser machining, electrical discharge machining, electropolishing of die and mold, and wafer processing for integrated circuit manufacturing. This book also: Fills the gap of the advanced knowledge of nonconventional machining between industry and research Documents latest and frequently cited research of key nonconventional machining processes for the most sought after topics in industrial applications Demonstrates advanced multidisci...

  5. Machining strategy choice: performance VIEWER

    CERN Document Server

    Tapie, Laurent; Anselmetti, Bernard

    2009-01-01

    Nowadays high speed machining (HSM) machine tool combines productivity and part quality. So mould and die maker invested in HSM. Die and mould features are more and more complex shaped. Thus, it is difficult to choose the best machining strategy according to part shape. Geometrical analysis of machining features is not sufficient to make an optimal choice. Some research show that security, technical, functional and economical constrains must be taken into account to elaborate a machining strategy. During complex shape machining, production system limits induce feed rate decreases, thus loss of productivity, in some part areas. In this paper we propose to analyse these areas by estimating tool path quality. First we perform experiments on HSM machine tool to determine trajectory impact on machine tool behaviour. Then, we extract critical criteria and establish models of performance loss. Our work is focused on machine tool kinematical performance and numerical controller unit calculation capacity. We implement...

  6. Hybrid machining processes perspectives on machining and finishing

    CERN Document Server

    Gupta, Kapil; Laubscher, R F

    2016-01-01

    This book describes various hybrid machining and finishing processes. It gives a critical review of the past work based on them as well as the current trends and research directions. For each hybrid machining process presented, the authors list the method of material removal, machining system, process variables and applications. This book provides a deep understanding of the need, application and mechanism of hybrid machining processes.

  7. Metalworking and machining fluids

    Science.gov (United States)

    Erdemir, Ali; Sykora, Frank; Dorbeck, Mark

    2010-10-12

    Improved boron-based metal working and machining fluids. Boric acid and boron-based additives that, when mixed with certain carrier fluids, such as water, cellulose and/or cellulose derivatives, polyhydric alcohol, polyalkylene glycol, polyvinyl alcohol, starch, dextrin, in solid and/or solvated forms result in improved metalworking and machining of metallic work pieces. Fluids manufactured with boric acid or boron-based additives effectively reduce friction, prevent galling and severe wear problems on cutting and forming tools.

  8. CHECKING THE TIRES AS MEASURE OF EFFICIENCY INCREASE AND REDUCING WORKING COSTS OF FORKLIFTS - CASE STUDY OF COMPANY MERCATOR-S

    National Research Council Canada - National Science Library

    Marko Vlahović; Mila Kavalić; Ljiljana Radovanović; Darko Baðok; Arben Lunjić

    2017-01-01

    .... In order to try to reduce the cost of tires and increase transport efficiency within their logistics and distribution centers, the company Mercator-S has made an internal decision on additional quality control measures...

  9. Machine Translation

    Institute of Scientific and Technical Information of China (English)

    张严心

    2015-01-01

    As a kind of ancillary translation tool, Machine Translation has been paid increasing attention to and received different kinds of study by a great deal of researchers and scholars for a long time. To know the definition of Machine Translation and to analyse its benefits and problems are significant for translators in order to make good use of Machine Translation, and helpful to develop and consummate Machine Translation Systems in the future.

  10. Work.

    Science.gov (United States)

    Haines, Annette M.

    2003-01-01

    Draws upon Maria Montessori's writings to examine work as a universal human tendency throughout life. Discusses the work of adaptation of the infant, work of "psycho-muscular organism" for the preschooler, work of the imagination for the elementary child, community work of the adolescent, and work of the adult. Asserts that…

  11. Company analysis

    DEFF Research Database (Denmark)

    Jenster, Per V.; Hussey, David

    This volume looks at the company appraisal as a whole, examining the continuing need to appraise companies as part of the continuing strategy process. Building from a sound basis of theory, the text aims to be practical and to give guidance to senior managers and others involved in the strategy...... process. It is thus a book primarily aimed at managers, but should also be useful for MBA students undertaking strategy assignments It provides helpful, practical guidance and identifies weaknesses of traditional methods. It also presents a variety of tools which may be used in the appraisal process...

  12. 基于SolidWorks的机械加工应用%SolidWorks based on the machining applications

    Institute of Scientific and Technical Information of China (English)

    何志静; 徐静

    2013-01-01

      科学技术的不断发展带动了计算机技术的广泛应用,SolidWorks作为计算机辅助设计的一种三维建模软件在工程设计人员中的应用越来越普及。本文主要讨论了该软件的使用优点,及通过三维实体建模装配实例来表明SolidWorks在当今的机械产业加工中有无穷的应用潜力。%The continuous development of science and technology has led to the extensive use of computer technology, SolidWorks as computer-aided design of a three-dimensional modeling software is becoming increasingly popular in the engineering staff. This paper discusses the advantages of the use of the software, and to indicate that the SolidWorks 3D solid modeling assembly instances endless application potential in today’s machinery industry processing.

  13. 基于Solidworks和ADAMS的切割机虚拟样机设计与仿真分析%Virtual Prototype Design and Simulation Analysis of the Cutting Machine based on the SolidWorks and ADAMS

    Institute of Scientific and Technical Information of China (English)

    袁安富; 陆杨

    2013-01-01

    Based on the function requirements of the cutting machine, the model of the cutting machine is built by using SolidWorks software, and then it is imported into the ADAMS software. The simulation analysis of the transmission system of cutting machine is carried out and a theoretical basis for transmission system design and subsequent manufacture of cutting machine is provided.%根据切割机的功能要求,运用Solidworks软件对切割机进行建模,然后将其导入ADAMS软件中,运用ADAMS软件对其传动系统进行仿真分析,为切割机的传动系统的设计及后续的制造提供一定的理论基础.

  14. Micro Machining Enhances Precision Fabrication

    Science.gov (United States)

    2007-01-01

    Advanced thermal systems developed for the Space Station Freedom project are now in use on the International Space Station. These thermal systems employ evaporative ammonia as their coolant, and though they employ the same series of chemical reactions as terrestrial refrigerators, the space-bound coolers are significantly smaller. Two Small Business Innovation Research (SBIR) contracts between Creare Inc. of Hanover, NH and Johnson Space Center developed an ammonia evaporator for thermal management systems aboard Freedom. The principal investigator for Creare Inc., formed Mikros Technologies Inc. to commercialize the work. Mikros Technologies then developed an advanced form of micro-electrical discharge machining (micro-EDM) to make tiny holes in the ammonia evaporator. Mikros Technologies has had great success applying this method to the fabrication of micro-nozzle array systems for industrial ink jet printing systems. The company is currently the world leader in fabrication of stainless steel micro-nozzles for this market, and in 2001 the company was awarded two SBIR research contracts from Goddard Space Flight Center to advance micro-fabrication and high-performance thermal management technologies.

  15. Company profile

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ Datacon was founded in 1986 and, since the beginning of 2005, has been part of the Dutch Besi group (BE Semiconductor Industries N.V.), an international group of companies operating in the semiconductor industry. Besi is a leading manufacturer of semiconductor die sorting, die bonding, packaging and plating equipment and provides the most cost efficient solution for RFID inlay production.

  16. Influence of Surface Position along the Working Range of Conoscopic Holography Sensors on Dimensional Verification of AISI 316 Wire EDM Machined Surfaces

    Directory of Open Access Journals (Sweden)

    Pedro Fernández

    2014-03-01

    Full Text Available Conoscopic holography (CH is a non-contact interferometric technique used for surface digitization which presents several advantages over other optical techniques such as laser triangulation. Among others, the ability for the reconstruction of high-sloped surfaces stands out, and so does its lower dependence on surface optical properties. Nevertheless, similarly to other optical systems, adjustment of CH sensors requires an adequate selection of configuration parameters for ensuring a high quality surface digitizing. This should be done on a surface located as close as possible to the stand-off distance by tuning frequency (F and power (P until the quality indicators Signal-to-Noise Ratio (SNR and signal envelope (Total meet proper values. However, not all the points of an actual surface are located at the stand-off distance, but they could be located throughout the whole working range (WR. Thus, the quality of a digitized surface may not be uniform. The present work analyses how the quality of a reconstructed surface is affected by its relative position within the WR under different combinations of the parameters F and P. Experiments have been conducted on AISI 316 wire EDM machined flat surfaces. The number of high-quality points digitized as well as distance measurements between different surfaces throughout the WR allowed for comparing the metrological behaviour of the CH sensor with respect to a touch probe (TP on a CMM.

  17. [Fraud in the health-care system from the perspective of the public health insurance companies. Empirical findings on the work of anti-fraud agencies].

    Science.gov (United States)

    Meier, B D; Homann, D

    2010-07-01

    The article summarises the results of a study on the activities of the German public health insurance companies to fight fraudulent behaviour in the system. The study is based on the analysis of 140 activity reports of the years 2004 and 2005 which the companies had to deliver to the Federal Social Insurance Authority as well as on the results of an additional survey. The article deals with the number of cases, the phenomenology of the delinquent acts, the referral of the suspicious cases to the law enforcement agencies, and the cooperation with other insurance companies. Finally, the article presents some considerations on an improved prevention of fraud in the public health care system. Copyright Georg Thieme Verlag KG Stuttgart . New York.

  18. Tool management in manufacturing systems equipped with CNC machines

    Directory of Open Access Journals (Sweden)

    Giovanni Tani

    1997-12-01

    Full Text Available This work has been carried out for the purpose of realizing an automated system for the integrated management of tools within a company. By integrating planning, inspection and tool-room functions, automated tool management can ensure optimum utilization of tools on the selected machines, guaranteeing their effective availability. The first stage of the work consisted of defining and developing a Tool Management System whose central nucleus is a unified Data Base for all of the tools, forming part of the company's Technological Files (files on machines, materials, equipment, methods, etc., interfaceable with all of the company departments that require information on tools. The system assigns code numbers to the individual components of the tools and file them on the basis of their morphological and functional characteristics. The system is also designed to effect assemblies of tools, from which are obtained the "Tool Cards" required for compiling working cycles (CAPP, for CAM programming and for the Tool-room where the tools are physically prepared. Methods for interfacing with suitable systems for the aforesaid functions have also been devised

  19. Perpetual Motion Machine

    Directory of Open Access Journals (Sweden)

    D. Tsaousis

    2008-01-01

    Full Text Available Ever since the first century A.D. there have been relative descriptions of known devices as well as manufactures for the creation of perpetual motion machines. Although physics has led, with two thermodynamic laws, to the opinion that a perpetual motion machine is impossible to be manufactured, inventors of every age and educational level appear to claim that they have invented something «entirely new» or they have improved somebody else’s invention, which «will function henceforth perpetually»! However the fact of the failure in manufacturing a perpetual motion machine till now, it does not mean that countless historical elements for these fictional machines become indifferent. The discussion on every version of a perpetual motion machine on the one hand gives the chance to comprehend the inventor’s of each period level of knowledge and his way of thinking, and on the other hand, to locate the points where this «perpetual motion machine» clashes with the laws of nature and that’s why it is impossible to have been manufactured or have functioned. The presentation of a new «perpetual motion machine» has excited our interest to locate its weak points. According to the designer of it the machine functions with the work produced by the buoyant force

  20. Gamification in a Consulting Company

    NARCIS (Netherlands)

    Blaauw, Frank; Bazylevska, L.; Aiello, M.

    2014-01-01

    Gamification refers to the use of game-design elements in a non-gaming context. The consulting company Capgemini has set up a rudimentary Gamification platform to help motivating the people to do extra work for the company in their spare time. In order to re- ward people for this effort, they can re

  1. Gamification in a Consulting Company

    NARCIS (Netherlands)

    Blaauw, Frank; Bazylevska, L.; Aiello, M.

    2014-01-01

    Gamification refers to the use of game-design elements in a non-gaming context. The consulting company Capgemini has set up a rudimentary Gamification platform to help motivating the people to do extra work for the company in their spare time. In order to re- ward people for this effort, they can re

  2. Developmental Work

    DEFF Research Database (Denmark)

    Møller, Niels; Hvid, Helge; Kristensen, Tage Søndergaard

    2003-01-01

    Human Deveoplment and Working Life - Work for Welfare explores whether the development of human resources at company level can improve individuals' quality of life, companies' possibilities of development, and welfare and democracy in society. Chapter two discuss the concept "developmental work...

  3. Developmental Work

    DEFF Research Database (Denmark)

    Møller, Niels; Hvid, Helge; Kristensen, Tage Søndergaard;

    2003-01-01

    Human Deveoplment and Working Life - Work for Welfare explores whether the development of human resources at company level can improve individuals' quality of life, companies' possibilities of development, and welfare and democracy in society. Chapter two discuss the concept "developmental work...

  4. Fundamentals of machine design

    CERN Document Server

    Karaszewski, Waldemar

    2011-01-01

    A forum of researchers, educators and engineers involved in various aspects of Machine Design provided the inspiration for this collection of peer-reviewed papers. The resultant dissemination of the latest research results, and the exchange of views concerning the future research directions to be taken in this field will make the work of immense value to all those having an interest in the topics covered. The book reflects the cooperative efforts made in seeking out the best strategies for effecting improvements in the quality and the reliability of machines and machine parts and for extending

  5. Machine Learning in Medicine.

    Science.gov (United States)

    Deo, Rahul C

    2015-11-17

    Spurred by advances in processing power, memory, storage, and an unprecedented wealth of data, computers are being asked to tackle increasingly complex learning tasks, often with astonishing success. Computers have now mastered a popular variant of poker, learned the laws of physics from experimental data, and become experts in video games - tasks that would have been deemed impossible not too long ago. In parallel, the number of companies centered on applying complex data analysis to varying industries has exploded, and it is thus unsurprising that some analytic companies are turning attention to problems in health care. The purpose of this review is to explore what problems in medicine might benefit from such learning approaches and use examples from the literature to introduce basic concepts in machine learning. It is important to note that seemingly large enough medical data sets and adequate learning algorithms have been available for many decades, and yet, although there are thousands of papers applying machine learning algorithms to medical data, very few have contributed meaningfully to clinical care. This lack of impact stands in stark contrast to the enormous relevance of machine learning to many other industries. Thus, part of my effort will be to identify what obstacles there may be to changing the practice of medicine through statistical learning approaches, and discuss how these might be overcome.

  6. mlpy: Machine Learning Python

    CERN Document Server

    Albanese, Davide; Merler, Stefano; Riccadonna, Samantha; Jurman, Giuseppe; Furlanello, Cesare

    2012-01-01

    mlpy is a Python Open Source Machine Learning library built on top of NumPy/SciPy and the GNU Scientific Libraries. mlpy provides a wide range of state-of-the-art machine learning methods for supervised and unsupervised problems and it is aimed at finding a reasonable compromise among modularity, maintainability, reproducibility, usability and efficiency. mlpy is multiplatform, it works with Python 2 and 3 and it is distributed under GPL3 at the website http://mlpy.fbk.eu.

  7. mlpy: Machine Learning Python

    OpenAIRE

    Albanese, Davide; Visintainer, Roberto; Merler, Stefano; Riccadonna, Samantha; Jurman, Giuseppe; Furlanello, Cesare

    2012-01-01

    mlpy is a Python Open Source Machine Learning library built on top of NumPy/SciPy and the GNU Scientific Libraries. mlpy provides a wide range of state-of-the-art machine learning methods for supervised and unsupervised problems and it is aimed at finding a reasonable compromise among modularity, maintainability, reproducibility, usability and efficiency. mlpy is multiplatform, it works with Python 2 and 3 and it is distributed under GPL3 at the website http://mlpy.fbk.eu.

  8. Mi Primer Libro de Maquinas Simples: Trabajo y Fuerza. Escuela Intermedia Grados 7, 8 y 9 (My First Book of Simple Machines: Work and Force. Intermediate School Grades 7, 8, and 9).

    Science.gov (United States)

    Alvarado, Patricio R.; Montalvo, Luis

    This is the first book in a five-book physical science series on simple machines. The books are designed for Spanish-speaking junior high school students. This volume defines force and work by suggesting experiments and posing questions concerning drawings in the book which illustrate scientific principles. Answers to the questions are provided;…

  9. Prediction of Machine Tool Condition Using Support Vector Machine

    Science.gov (United States)

    Wang, Peigong; Meng, Qingfeng; Zhao, Jian; Li, Junjie; Wang, Xiufeng

    2011-07-01

    Condition monitoring and predicting of CNC machine tools are investigated in this paper. Considering the CNC machine tools are often small numbers of samples, a condition predicting method for CNC machine tools based on support vector machines (SVMs) is proposed, then one-step and multi-step condition prediction models are constructed. The support vector machines prediction models are used to predict the trends of working condition of a certain type of CNC worm wheel and gear grinding machine by applying sequence data of vibration signal, which is collected during machine processing. And the relationship between different eigenvalue in CNC vibration signal and machining quality is discussed. The test result shows that the trend of vibration signal Peak-to-peak value in surface normal direction is most relevant to the trend of surface roughness value. In trends prediction of working condition, support vector machine has higher prediction accuracy both in the short term ('One-step') and long term (multi-step) prediction compared to autoregressive (AR) model and the RBF neural network. Experimental results show that it is feasible to apply support vector machine to CNC machine tool condition prediction.

  10. SAFER - Company Snapshot - SAFER - Company Snapshot

    Data.gov (United States)

    Department of Transportation — The Company Snapshot is a concise electronic record of company identification, size, commodity information, and safety record, including the safety rating (if any),...

  11. Perspex machine: VII. The universal perspex machine

    Science.gov (United States)

    Anderson, James A. D. W.

    2006-01-01

    -linear perspex-machine which is very much easier to program than the original perspex-machine. We then show how to map the whole of perspex space into a unit cube. This allows us to construct a fractal of perspex machines with the cardinality of a real-numbered line or space. This fractal is the universal perspex machine. It can solve, in unit time, the halting problem for itself and for all perspex machines instantiated in real-numbered space, including all Turing machines. We cite an experiment that has been proposed to test the physical reality of the perspex machine's model of time, but we make no claim that the physical universe works this way or that it has the cardinality of the perspex machine. We leave it that the perspex machine provides an upper bound on the computational properties of physical things, including manufactured computers and biological organisms, that have a cardinality no greater than the real-number line.

  12. Of machines and men ...

    CERN Multimedia

    CERN; Daniel Boileau

    1990-01-01

    Engineering and construction at LEP. Committed work and physicists motivation to work on this type of machine. With Guido Altarelli Theory Division Physicist, Ugo Amaldi Delphi Experiment Spokesman, Oscar Barbalat Head of Industry and Technology Liaison Office, Jonathan Ellis Head of Theory Division.

  13. Electric machine

    Science.gov (United States)

    El-Refaie, Ayman Mohamed Fawzi [Niskayuna, NY; Reddy, Patel Bhageerath [Madison, WI

    2012-07-17

    An interior permanent magnet electric machine is disclosed. The interior permanent magnet electric machine comprises a rotor comprising a plurality of radially placed magnets each having a proximal end and a distal end, wherein each magnet comprises a plurality of magnetic segments and at least one magnetic segment towards the distal end comprises a high resistivity magnetic material.

  14. VISIONARY THINKER: LEADERSHIP AND MANAGEMENT IN WORKS OF MARY P. FOLLETT – LONG-TERM PERSPECTIVE IN THE COMPANIES OF THE REPUBLIC OF SERBIA

    OpenAIRE

    Srdjan Nikezic; Radmila Mikovic; Dejana Prodanovic

    2014-01-01

    In her lectures, Mary P. Follett pointed to key moments of leadership, management, group membership, coordination and participation as relevant elements for the exploration of human relations that are of interest today in the same way as they were eighty years ago. Model of thinking applied by Mary P. Follett is deeply linked to current strong needs for the creation of leadership and management professions that are linked to changes and long term strategic goals of big companies and world eco...

  15. New Banana Planting Open Pit Machine Working Principle and Analysis%新型香蕉种植开坑机器的工作原理及结构分析

    Institute of Scientific and Technical Information of China (English)

    谢炳光; 马俊生; 汤华飞; 刘硕; 马桂香; 刘子良; 梁甲; 黄珍章

    2016-01-01

    针对大规模香蕉种植开坑机器的研发比较缺乏,设计了一种新型香蕉种植开坑机器,其具有开坑质量高、成本低及能适应不同挖坑要求的特点.同时,分析了新型香蕉种植开坑机器的工作原理,对螺旋式刀盘及重要零件利用Inventor自带应力分析模块建立了有限元模型.有限元分析的结果表明:新型香蕉种植开坑机器能够满足工作要求,且各零件满足刚度和强度的要求可为其他类似农作物开坑器的研制提供参考.%For large banana plantations of relative lack of research and development of the open pit machine, designed a new type of banana planting machine open pit.This machine has high quality open pit Lower cost, and can adapt to dif-ferent digging holes requirements analysis of the characteristics of a new type of banana planting the working principle of the open pit machine for spiral cutter disc and important parts of the finite element model is established by finite element analysis results show that a new type of banana planting open pit machine can meet the job requirements, and the parts meet the requirement of stiffness and strength.A new type of banana planting the development of the open pit machine can be used as crop other similar open pit machine developed to provide the reference.

  16. Program Design Report of the CNC Machine Tool(II)

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jong Kiun; Youm, K. U.; Kim, K. S.; Lee, I. B.; Yoon, K. B.; Lee, C. K.; Youm, J. H

    2007-06-15

    The application of CNC machine tool being widely expanded according to variety of machine work method and rapid promotion of machine tool, cutting tool, for high speed efficient machine work. In order to conduct of the project of manufacture and maintenance of laboratory equipment, production design and machine work technology are continually developed, especially the application of CNC machine tool is very important for the improvement of productivity, quality and clearing up a manpower shortage. We publish technical report which it includes CNC machine tool program and drawing, it contributes to the systematic development of CNC program design and machine work technology.

  17. Building Company Loyalty System

    OpenAIRE

    Haniková, Alžběta

    2010-01-01

    The thesis discusses the importance of loyal customers, and loyalty system as a tool for building loyalty. It defines loyalty and customer satisfaction, it deals with the issue of customer retention. It describes the history and types of loyalty programs, important factors for deciding on their implementation and problems associated with them. The practical part is concerned with the clothing market, Orsay company and its Orsay Club loyalty systeme. The work also includes a survey of the loya...

  18. Building Company Loyalty System

    OpenAIRE

    Haniková, Alžběta

    2010-01-01

    The thesis discusses the importance of loyal customers, and loyalty system as a tool for building loyalty. It defines loyalty and customer satisfaction, it deals with the issue of customer retention. It describes the history and types of loyalty programs, important factors for deciding on their implementation and problems associated with them. The practical part is concerned with the clothing market, Orsay company and its Orsay Club loyalty systeme. The work also includes a survey of the loya...

  19. Modelling of series of types of automated trenchless works tunneling

    Science.gov (United States)

    Gendarz, P.; Rzasinski, R.

    2016-08-01

    Microtunneling is the newest method for making underground installations. Show method is the result of experience and methods applied in other, previous methods of trenchless underground works. It is considered reasonable to elaborate a series of types of construction of tunneling machines, to develop this particular earthworks method. There are many design solutions of machines, but the current goal is to develop non - excavation robotized machine. Erosion machines with main dimensions of the tunnels which are: 1600, 2000, 2500, 3150 are design with use of the computer aided methods. Series of types of construction of tunneling machines creating process was preceded by analysis of current state. The verification of practical methodology of creating the systematic part series was based on the designed erosion machines series of types. There were developed: method of construction similarity of the erosion machines, algorithmic methods of quantitative construction attributes variant analyzes in the I-DEAS advanced graphical program, relational and program parameterization. There manufacturing process of the parts will be created, which allows to verify the technological process on the CNC machines. The models of designed will be modified and the construction will be consulted with erosion machine users and manufacturers like: Tauber Rohrbau GmbH & Co.KG from Minster, OHL ZS a.s. from Brna,. The companies’ acceptance will result in practical verification by JUMARPOL company.

  20. INNOVATION MANAGER AND HIS POSITION IN COMPANY

    Directory of Open Access Journals (Sweden)

    KATEŘINA HRAZDILOVÁ BOČKOVÁ

    2010-12-01

    Full Text Available The presented paper deals with the importance of innovation manager in company. It analyses the actual state of definition of innovation manager in companies, it is dealing with their qualities and qualities of ideal innovation manager. The paper solves the placement of position of innovation manager into the company organization structure. It recommends the ideal placement of innovation manager position in the organization structure in company working in “Production, sale and operation of amusement and gaming technology”.

  1. Innovation manager and his position in company

    Directory of Open Access Journals (Sweden)

    Kateřina Hrazdilová Bočková

    2011-04-01

    Full Text Available The presented paper deals with the importance of innovation manager in company. It analyses the actual state of definition of innovation manager in companies, it is dealing with their qualities and qualities of ideal innovation manager. The paper solves the placement of position of innovation manager into the company organization structure. It recommends the ideal placement of innovation manager position in the organization structure in company working in “Production, sale and operation of amusement and gaming technology”.

  2. VISIONARY THINKER: LEADERSHIP AND MANAGEMENT IN WORKS OF MARY P. FOLLETT – LONG-TERM PERSPECTIVE IN THE COMPANIES OF THE REPUBLIC OF SERBIA

    Directory of Open Access Journals (Sweden)

    Srdjan Nikezic

    2014-06-01

    Full Text Available In her lectures, Mary P. Follett pointed to key moments of leadership, management, group membership, coordination and participation as relevant elements for the exploration of human relations that are of interest today in the same way as they were eighty years ago. Model of thinking applied by Mary P. Follett is deeply linked to current strong needs for the creation of leadership and management professions that are linked to changes and long term strategic goals of big companies and world economy as a whole.

  3. Machine Learning

    CERN Document Server

    CERN. Geneva

    2017-01-01

    Machine learning, which builds on ideas in computer science, statistics, and optimization, focuses on developing algorithms to identify patterns and regularities in data, and using these learned patterns to make predictions on new observations. Boosted by its industrial and commercial applications, the field of machine learning is quickly evolving and expanding. Recent advances have seen great success in the realms of computer vision, natural language processing, and broadly in data science. Many of these techniques have already been applied in particle physics, for instance for particle identification, detector monitoring, and the optimization of computer resources. Modern machine learning approaches, such as deep learning, are only just beginning to be applied to the analysis of High Energy Physics data to approach more and more complex problems. These classes will review the framework behind machine learning and discuss recent developments in the field.

  4. Mastering machine learning with scikit-learn

    CERN Document Server

    Hackeling, Gavin

    2014-01-01

    If you are a software developer who wants to learn how machine learning models work and how to apply them effectively, this book is for you. Familiarity with machine learning fundamentals and Python will be helpful, but is not essential.

  5. Petition Processing and Stability Work for Power Supply Company under the New Situation%新形势下供电公司信访稳定工作探析

    Institute of Scientific and Technical Information of China (English)

    虞亮

    2015-01-01

    At present , the petition processing and stability work for power supply company is faced with the situations such as the petitioner diversity , complex problems , and prominent illegal petition .To do a good job in the petition processing and stability work for power supply company must complete the petition processor team construction , the perfect petition processing mechanism , the petition processing work con-sciousness cultivation , the petition processing control , the petition processing work specification , internal coordination, etc.%当前供电公司信访稳定工作面临信访主体多元、问题复杂、违规上访突出等形势,要做好供电公司信访稳定工作必须下大工夫做好信访干部队伍建设、信访机制完善、信访工作意识培养、信访调控、信访工作规范、内部协调等方面的工作.

  6. Technological Level of Machines in Production Process of Screws

    Directory of Open Access Journals (Sweden)

    Ingaldi Manuela

    2014-12-01

    Full Text Available The article focuses on analysing one of the elements of technological level in a company using the ABC method. The technological modernity of a machine used during the production process of screws was evaluated. In average, this machine was assigned the score 3.4, meaning that most parts of the machine were manufactured using more complex technologies requiring technical skills and knowledge, and many of them also with modern technologies. This means that the machine examined was quite modern

  7. Experimental Research and Analysis on the Working Quality of Tobacco Mulching Machine%烟草覆膜机作业质量的试验研究与分析

    Institute of Scientific and Technical Information of China (English)

    吴睿; 席云廷; 郑俊; 徐阳; 马豪; 朱云

    2015-01-01

    在云南烟草生产中,覆膜机的作业质量影响了其使用和推广。为此,进行了烟草覆膜机的性能测试试验,分别测定了23种型号的烟草覆膜机的每公顷油耗、作业效率、实际作业幅宽、覆膜后垄高、覆膜后垄基宽、膜边覆土宽度、透光面宽、漏覆率和覆膜破损率9个试验指标,并对它们的作业质量进行分析。试验结果表明:所测试的机型在覆膜后垄高、覆膜破损率、漏覆率和覆膜后垄基宽方面,能较好地满足烟草农艺要求。但是,所测试机型基本不能满足覆膜后透光面宽和膜边覆土宽度的农艺要求。同时,通过对试验结果的分析,得出了4种作业质量较好的覆膜机型。%The working quality of tobacco mulching machine affected the use and promotion of it about tobacco production in Yunnan, as it, we carried out performance test of tobacco mulching machine, 23 types of tobacco mulching machine were measured on fuel consumption per hectare, work efficiency, the actual working width, the filmed ridge height, the filmed ridge base width, the soil covering width, the width of going through light, covering leakage rate and breakage rate of 9 test indexes, and were analyzed on the working quality.The experimental results showed that:the experimental to-bacco mulching machine could match the agronomic requirements on the filmed ridge height, breakage rate, covering leakage rate and the filmed ridge base width basically.However, the experimental tobacco mulching machine could not meet the width of going through light and the soil covering width of the agronomic requirements.And through the analysis on the experimental results, 4 types of tobacco mulching machine were selected by better working quality.

  8. A support vector machine approach to detect financial statement fraud in South Africa: A first look

    CSIR Research Space (South Africa)

    Moepya, SO

    2014-04-01

    Full Text Available Auditors face the difficult task of detecting companies that issue manipulated financial statements. In recent years, machine learning methods have provided a feasible solution to this task. This study develops support vector machine (SVM) models...

  9. FORMATION OF BUSINESS PROCESS MANAGEMENT ENGINEERING COMPANY

    OpenAIRE

    Khatskevich, L.; Shishkin, I.

    2012-01-01

    In the proposed paper the relevance of management on the basis of machine-building enterprise business process management, building management systems business process engineering company, based on individual organizational functions. Business-process approach is based on rethinking the concept of middle management, where leadership is fundamental to middle managers

  10. LEADERSHIP DEVELOPMENTS IN SLOVENIAN COMPANIES

    Directory of Open Access Journals (Sweden)

    Andrej Kohont

    2016-04-01

    Full Text Available In this paper we study the relationship between the company and the leaders. We are interested what is characteristic of leadership in the best Slovenian companies. We used standardised employee questionnaire and data gathered in the Golden thread project. We observe the situation in these companies in the period between 2007 and 2014 to find out if there are any significant changes in leadership developments. Special attention in leadership observation is devoted to 1. The fundamental relationship between the company and the leaders, 2. The role and quality of leaders work, 3. Organizational culture, climate and relationships, 4. Entrepreneurship and innovation, 5. The quality of the working environment, 6. The personal growth and development and 7. Emotional commitment. The analysis represents an insight into current leadership situation and shows that the recent developments were heavily marked by the economic crisis, especially in 2009.

  11. MANAGER AND LEADERSHIP OF COMPANY

    OpenAIRE

    Rožič, Marko

    2014-01-01

    In my diploma work I presented a manager as the leading person in a company, who has the task of realizing the goals set and is along with employees creating a better tomorrow. Without a good manager, who knows what to do and how to reach good results, an company cannot be successful and cannot develop. I wanted to present a manager, who has the power to help create a story of success in an company. However without the support and cooperation of colleagues that goal cannot be fulfilled. There...

  12. Belt storage and transportation machine research and application in coal mine tunneling working face%带式储运机在煤矿掘进工作面的研究与应用

    Institute of Scientific and Technical Information of China (English)

    李新海; 徐兴民; 刘仕磊

    2014-01-01

    Based on practical needs,Zhaizhen Coal Mine designed and developed a new belt storage and transportation machine to adapt to the coal mine excavation working face. Construc-tion,working principle and equipment characteristics are introduced. Applicating the belt storage and transportation machine can improve efficiency,austerity and reduce consumption.%根据翟镇煤矿实际需要,自行设计研发了适应煤矿井下掘进工作面应用的带式储运机。对结构、工作原理、设备特点进行了介绍。应用后实现了矿井提速提效、节支降耗。

  13. Soziale Arbeit in guter Gesellschaft? Gesellschaftliche Modernisierung und die "Normalisierung" der Sozialpadagogik (Social Work in Good Company? Social Modernization and the "Normalization" of Social Pedagogics).

    Science.gov (United States)

    Schaarschuch, Andreas

    1996-01-01

    Confronts the thesis that Germany is witnessing a process of "normalization" of social work, substantiated by the expansion of the fields of action of social work, with findings of a sociocultural "division of society." Inquires into the consequences of these findings for clients and objectives of social work. (DSK)

  14. Man and Machines: Three Criticisms.

    Science.gov (United States)

    Schneider, Edward F.

    As machines have become a more common part of daily life through the passage of time, the idea that the line separating man and machine is slowly fading has become more popular as well. This paper examines three critics of change through their most famous works. One of the most popular views of Mary Shelley's "Frankenstein" is that it is a…

  15. The Machine Scoring of Writing

    Science.gov (United States)

    McCurry, Doug

    2010-01-01

    This article provides an introduction to the kind of computer software that is used to score student writing in some high stakes testing programs, and that is being promoted as a teaching and learning tool to schools. It sketches the state of play with machines for the scoring of writing, and describes how these machines work and what they do.…

  16. 适应锚机工况要求的开关磁阻电机调速系统的研究%On Switched Reluctance Driver System to Meet Anchor Machine Working Requirements

    Institute of Scientific and Technical Information of China (English)

    张芊; 胡猛; 李元栋

    2012-01-01

    The components of switched reluctance driver system are described in this essay. The SRD system hardware is required under the anchor machine conditions. Control strategies at differents stages of the system are described according to the anchor machine working requirements. The application of STD in marine anchor machine control system can achieve automotive control of anchor machine, so that ship electrical automation, ship intelligence, information level are raised to some extent.%介绍了开关磁阻电机调速系统(SRD)的基本组成。根据锚机工作条件提出SRD系统硬件要求,针对锚机工况要求阐述了在不同阶段系统的控制策略。将SRD用于船用锚机控制系统有助于实现锚机的自动控制,并在一定程度上提升了船舶电气自动化、智能化和信息化水平。

  17. Job-Ticket system for Tehohydro company

    OpenAIRE

    Barabas, Ladislav; Draska, Bronislav; Stonawski, Jakub

    2013-01-01

    This bachelor thesis discusses a technical task, which was connected with the real company located in Lappeenranta. The objective of the work was to design and create a new information system used for management and administration inside the company. The idea about implementation of the new system was a response to the old one, which had several improvement needs. The work was commissioned by Tehohydro company. The system has been developed with the help of Microsoft technologies. The deve...

  18. Machine Learning

    Energy Technology Data Exchange (ETDEWEB)

    Chikkagoudar, Satish; Chatterjee, Samrat; Thomas, Dennis G.; Carroll, Thomas E.; Muller, George

    2017-04-21

    The absence of a robust and unified theory of cyber dynamics presents challenges and opportunities for using machine learning based data-driven approaches to further the understanding of the behavior of such complex systems. Analysts can also use machine learning approaches to gain operational insights. In order to be operationally beneficial, cybersecurity machine learning based models need to have the ability to: (1) represent a real-world system, (2) infer system properties, and (3) learn and adapt based on expert knowledge and observations. Probabilistic models and Probabilistic graphical models provide these necessary properties and are further explored in this chapter. Bayesian Networks and Hidden Markov Models are introduced as an example of a widely used data driven classification/modeling strategy.

  19. Internationalization plan for software company

    OpenAIRE

    Närhi, Heikki

    2017-01-01

    Construction business has not traditionally been in the forefront of innovation. Most of project management work is made in traditional way using computer, pen and paper and working from the office instead of the field conditions using mobile devises. Modern way to work is to use mobile project management software to ease the work load of project management, site management and control. During the recent couple years many software companies have risen in Finland and abroad to tackle the m...

  20. Social companies

    NARCIS (Netherlands)

    drs. Frans van den Reep

    2009-01-01

    The Internet is changing the way we organize work. It is shifting the requirement for what we call the ‘schedule push’ and the hierarchical organisation that it implies, and therefore it is removing the type of control that is conventionally used to match resources to tasks, and customer demand to

  1. Social companies

    NARCIS (Netherlands)

    Reep, Frans van der

    2009-01-01

    The Internet is changing the way we organize work. It is shifting the requirement for what we call the ‘schedule push’ and the hierarchical organisation that it implies, and therefore it is removing the type of control that is conventionally used to match resources to tasks, and customer demand to s

  2. VIRTUAL MACHINES IN EDUCATION – CNC MILLING MACHINE WITH SINUMERIK 840D CONTROL SYSTEM

    Directory of Open Access Journals (Sweden)

    Ireneusz Zagórski

    2014-11-01

    Full Text Available Machining process nowadays could not be conducted without its inseparable element: cutting edge and frequently numerically controlled milling machines. Milling and lathe machining centres comprise standard equipment in many companies of the machinery industry, e.g. automotive or aircraft. It is for that reason that tertiary education should account for this rising demand. This entails the introduction into the curricula the forms which enable visualisation of machining, milling process and virtual production as well as virtual machining centres simulation. Siemens Virtual Machine (Virtual Workshop sets an example of such software, whose high functionality offers a range of learning experience, such as: learning the design of machine tools, their configuration, basic operation functions as well as basics of CNC.

  3. The live well collaborative: a new model for universities and companies to work together to meet the needs of 50+ consumers.

    Science.gov (United States)

    Vogel, Craig M

    2008-01-01

    A new opportunity has emerged for universities and corporations to align in response to the global trend of countries with significant percentages of their population over the age of 50. This trend is driven by the dramatic increase in the birth rate starting in 1945 after World War II and ending in 1965 (a population commonly referred to in the United States as "baby boomers"). As they reach retirement, this age cohort has a unique expectation of a continued high quality of life in spite of the emerging health challenges they face. The boomer's lifestyle expectation has tremendous impact on the design of new products and services in every sector of the economy. To achieve effective translational research (from laboratory to marketable products), universities and companies must integrate the qualitative innovation processes used by design fields like industrial design into the quantitative research techniques embraced by medicine and engineering. The University of Cincinnati is one of the few universities in the United States with all the necessary components in place to respond to this opportunity. P&G with global headquarters in Cincinnati is the right corporate partner to define this new university-corporate relationship.

  4. An art history of machines?

    Directory of Open Access Journals (Sweden)

    Daniel Bridgman

    2016-12-01

    Full Text Available A toast offered in honor of Donald Preziosi on the cusp of his seventy-fifth birthday, this essay considers a range of machine metaphors, their art historical settings, and their implications. Addressing the mythography of Daedalus and his wonder machines in relation to art history’s machinic enterprises, an ancient art-archaeology seminar Preziosi directed at UCLA (in 1988 and the book, Rethinking Art History: Meditations on a Coy Science (1989 form the focus of my thinking about Preziosi’s work. At issue across the essay is the work of recursion, when machines make machines and in so doing create a recessive subjectivity for the maker. The essay ends with the speculation that art history’s disciplinary machinery may owe its generative strength to a perpetual need for replacement parts.

  5. Control technology assessment of hazardous waste disposal operations in chemicals manufacturing: in-depth survey report of E. I. Du Pont de Nemours and Company, Chambers Works incinerator, Deepwater, New Jersey

    Energy Technology Data Exchange (ETDEWEB)

    Anastas, M.Y.

    1984-01-01

    An in depth survey was conducted to assess control technology of hazardous waste disposal operations at the Chamber Works incinerator, Du Pont de Nemours and Company (SIC-2800), Deepwater, New Jersey, in October 1982. Area and breathing zone samples were analyzed for toluene (108883), ortho-chloronitrobenzene (88733), and para-chloronitrobenzene (100005). All concentrations were well below the relevant standards. Control and safety instrumentation consisted of an electrically operated interlock system that sensed process disturbances and shut down the furnace. Wastes were burned directly from tank trailers. Trailer vents were connected to a spot scrubbing system. The hose connections included a recirculation line that prevented the plugging of process and trailer discharge lines with dirt particles. Waste pumps were provided with explosion proof motors and double mechanical seals. The company had programs for worker education and evaluation of on the job performance. Air monitoring of selected air contaminants was done routinely. Minimum protective equipment required for working in the incinerator area included rubber gloves, hard hat, and butyl rubber covers for shoes. The author concludes that a state of the art hazard control system is in place at the facility.

  6. THE EFFECTS OF INCOME, GENDER, AGE, EDUCATION, WORKING PERIOD, INSURANCE, TRAINING, AND WORKER STATUS ON OUTSOURCED AND WORKERS PERFORMANCE IN SOUTH SUMATERA IN MANUFACTURING COMPANIES

    Directory of Open Access Journals (Sweden)

    Ratna Juwita

    2017-06-01

    Full Text Available This research investigated the effects of income, gender, age, education, working period, insurance, training and workers’ status (outsourcing or permanent on performance. The result showed that gender, education, insurance, training and status had positive and significant effect on performace. Income had significant and negative effect on performance, the increased income would decrease performance. Age had positive but not significant effect, the increased age would decrease performance. Working period had negative but not significsnt effect on performance, the short working period would decrease performance.

  7. Thriving in the shadow of giants : Golosky Group demonstrates elbow work pays off

    Energy Technology Data Exchange (ETDEWEB)

    Ednie, H.

    2005-10-01

    This feature article described how the Golosky Group, founded by Metis born Doug Golosky, landed its first contract with major oil sands operators around Fort McMurray. His business strategy for gaining the interests in all the major operations in the region was discussed. The Golosky Group is an amalgamation of 9 companies, each operating as a separate economic unit, but working together. Most of the 9 companies are located in Fort McMurray, but 2 are based in Edmonton and 1 in Howick, Quebec. Clearwater, the main company, is a welding and fabrication shop with contracts with TransAlta, Albian Sands, and Syncrude for mine maintenance and with Suncor for process piping. Golosky Trucking is another company within the Group which provides transportation services to the industries of the Wood Buffalo region. Matrix, another company within the Group, collaborated with the University of Waterloo to design and manufacture a machine for hard surfacing of tailings pipes. The company provides a Chromium Carbide overlay into a 40 to 80 foot pipe without welding joints or splicing. It also manufactures the sizer teeth for the Canadian diamond mines. The Golosky Group also upgraded Brospec's equipment and integrated it into their business. The administration for the various companies is centralized with weekly reports submitted from each company. The company currently employs 1,200 people, but is faced with a lack of trained people in Fort McMurray. Golosky works with local apprenticeship programs and with high schools to attract and train people. The workforce shortage has actually prompted Golsosky to invest in new technologies such as an automated hard surfacing machine, lathe, and CNC milling machines. Golosky emphasizes a good relationship with employees and is dedicated to furthering Aboriginal business opportunities in Canada. In 1994, he helped start the Northern Alberta Aboriginal Business Association which today has about 150 Aboriginal businesses as members. 9

  8. Diagnosis of the Computer-Controlled Milling Machine, Definition of the Working Errors and Input Corrections on the Basis of Mathematical Model

    Science.gov (United States)

    Starikov, A. I.; Nekrasov, R. Yu; Teploukhov, O. J.; Soloviev, I. V.; Narikov, K. A.

    2016-10-01

    Manufactures, machinery and equipment improve of constructively as science advances and technology, and requirements are improving of quality and longevity. That is, the requirements for surface quality and precision manufacturing, oil and gas equipment parts are constantly increasing. Production of oil and gas engineering products on modern machine tools with computer numerical control - is a complex synthesis of technical and electrical equipment parts, as well as the processing procedure. Technical machine part wears during operation and in the electrical part are accumulated mathematical errors. Thus, the above-mentioned disadvantages of any of the following parts of metalworking equipment affect the manufacturing process of products in general, and as a result lead to the flaw.

  9. Investigation of an experimental ejector refrigeration machine operating with refrigerant R245fa at design and off-design working conditions. Part 1. Theoretical analysis

    KAUST Repository

    Shestopalov, K.O.

    2015-07-01

    © 2015 Elsevier Ltd and IIR.All rights reserved. The ejector refrigeration machine (ERM) offers several advantages over other heat-driven refrigeration machine, including simplicity in design and operation, high reliability and low installation cost, which enable its wide application in the production of cooling. In this paper the theoretical analysis of ejector design and ejector refrigeration cycle performance is presented. It is shown that ERM performance characteristics depend strongly on the operating conditions, the efficiency of the ejector used, and the thermodynamic properties of the refrigerant used. A 1-D model for the prediction of the entrainment ratio ω, and an optimal design for ejectors with cylindrical and conical-cylindrical mixing chambers are presented in this paper. In order to increase ERM performance values, it is necessary first of all to improve the performance of the ejector.

  10. Machine testning

    DEFF Research Database (Denmark)

    De Chiffre, Leonardo

    This document is used in connection with a laboratory exercise of 3 hours duration as a part of the course GEOMETRICAL METROLOGY AND MACHINE TESTING. The exercise includes a series of tests carried out by the student on a conventional and a numerically controled lathe, respectively. This document...

  11. [Medical visits before return to work, after a long lasting absence, above 60 days, for injuries or common diseases in a public transport company. Analysis and discussions of utility and consequences in term of evaluation of fitness to specific job].

    Science.gov (United States)

    Verga, A; Bordini, L; Ricci, M G; Di Lucca, P; Todaro, A

    2012-01-01

    The aim of this study is to evaluate the opportunity to do medical visits before return to work, after a long continuous absence, above 60 days, for injuries (occupational and non-occupational) or common diseases. We have examined medical records of 403 workers, in 2010 and 2011, occupied in a public transport company, in order to control the following variables: job, age, clinical conditions related to the absences, classification of the absence as injuries or common disease and conclusions about medical fitness to specific job. Our findings have shown an equal percentage of causes of absences in term of injuries or common diseases. The main cause of absence and of non fit to specific job, after medical evaluation, is depending on orthopaedic post-traumatic diseases. This evidence support the importance to do medical visits after long-lasting absence from work, particularly in case of jobs (bus, tram, subway drivers) at risk for other people.

  12. The moderating role of personality traits in the relationship between work and salivary cortisol: a cross-sectional study of 401 employees in 34 Canadian companies.

    Science.gov (United States)

    Parent-Lamarche, Annick; Marchand, Alain

    2015-12-14

    The objective of this study was to evaluate the contribution of personality traits in explaining the relationship between workplace stressors and variations in salivary cortisol concentrations. Multilevel regression analyses were performed on a sample of 401 employees from 34 Quebec firms. Saliva samples were collected five times a day (on awakening, 30 min after awakening, and at 2 p.m., 4 p.m., and bedtime). Sample collection was repeated on three days (1 rest day, 2 working days). Work-related variables comprised skill utilization, decision authority, psychological demands, physical demands, job insecurity, irregular schedule, number of working hours, and social support from coworkers and supervisors. Personality traits comprised self-esteem, locus of control, and the Big Five. Cortisol levels at awakening and 30 min later were significantly higher for work days than for days off. Psychological demands and job insecurity were associated with lower cortisol levels at bedtime. Also, self-esteem moderated the relationship between physical demands and cortisol levels at awakening and 4 p.m. Agreeableness was associated with lower cortisol levels at awakening and at 2 p.m. and further moderated the relationship between number of hours worked and cortisol at 2 p.m. Neuroticism moderated the relationship between coworker support and cortisol at bedtime. Specific working conditions and certain personality traits are associated with variations in salivary cortisol concentrations. In addition, certain personality traits moderate the relationship between stressors and salivary cortisol concentrations. In conclusion, salivary cortisol concentrations at work seem to be modulated in part by personality traits.

  13. Finishing aeronautical planetary herringbone gear wheels in container vibrating smoothing machine

    Directory of Open Access Journals (Sweden)

    Jacek MICHALSKI

    2015-12-01

    Full Text Available The paper presents the technological process of abrasive-chemical machining wheel bearing surface of the cylindrical herringbone gears planetary gear in vibrating container smoothing machine according to Isotropic Finishing ISF® technology of the REM Chemicals Inc. company. Gear wheels are made of stainless Pyrowear 53 and subjected to carburizing, hardening, cold working and low tempering. The change in value of deviation indicators for the kinematic accuracy, smoothness and geometric structure of the machined surfaces of the gear teeth after smoothing compared with the contoured grinding were analyzed. The findings are different a characteristic performance on the surface of the tooth side along the outline, especially with a higher value at the head of the tooths. This creates a need for appropriate modification of the lateral surface of the teeth in the process of contoured grinding. The results of the mechanical strength of the samples gear wheel after the smoothing process and evaluating the hydrogen embrittlement are presented.

  14. Numerical Investigation of an Absorption-Diffusion Cooling Machine Using C3H8/C9H20 as Binary Working Fluid Étude numérique d’une machine frigorifique à absorption-diffusion utilisant le couple C3H8/C9H20

    Directory of Open Access Journals (Sweden)

    Dardour H.

    2013-05-01

    Full Text Available This paper is concerned with the analysis and the simulation of a heat-driven absorption-diffusion cooling machine which can operate with low-grade heat sources. The simplified configuration of the heat-powered absorption-diffusion refrigerating machine considered in this study is based on the Platen-Munters single pressure refrigerators principle [Platen B.C.V. and Munters C.G. (1928 Refrigerator, US Patent 1, 685-764J. Three working fluids are used, nonane as an absorbent, propane as a refrigerant and hydrogen as the inert auxiliary gas. The designed cooling capacity of the machine is 1 kW which is suitable for a domestic use for refrigeration purposes. We restricted the maximum temperature of the driving heat supplied to the generator to 130 °C, a temperature achievable with evacuated-tube solar collectors. The simulations are carried out using a commercially available flow sheeting software with the PengRobinson equation of state as property prediction method. In this paper, we analyze the heat and mass transfer characteristics in all relevant machine components (absorber, condenser, generator and solution heat exchangers. The simulations results allow determining the values of different parameters of the systems such as the refrigerant and the solvent temperatures in various points of the machine, the liquid and the vapor flow rates and compositions. The system performances were parametrically analyzed using the flow sheeting software. Performance characteristics were determined for a wide range of operating conditions allowing investigating and evaluating the effect of various design parameters. Ce papier est consacré à l’étude et l’analyse d’une machine frigorifique à absorption-diffusion. La machine est actionnée grâce à une source de chaleur de température modérée. La configuration et le principe de fonctionnement de l’appareil obéissent au modèle de Platen Munters [Platen B.C.V. and Munters C.G. (1928 Refrigerator

  15. Adding machine and calculating machine

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    In 1642 the French mathematician Blaise Pascal(1623-1662) invented a machine;.that could add and subtract. It had.wheels that each had: 1 to 10 marked off along its circumference. When the wheel at the right, representing units, made one complete circle, it engaged the wheel to its left, represents tens, and moved it forward one notch.

  16. Do individual characteristics matter? The quality of work during the implementation of a workflow management system in a Dutch social insurance company.

    NARCIS (Netherlands)

    Waal, B.M.E. de; Breman, P.; Batenburg, R.

    2012-01-01

    Do individual characteristics influence how the quality of work is related to the use of a workflow management system (WFM) in a Dutch social insurance organisation? This key question is addressed in this paper. Building upon DeLone and McLean’s model, we investigated the effects of gender, age, edu

  17. Do individual characteristics matter? The quality of work during the implementation of a workflow management system in a Dutch social insurance company

    NARCIS (Netherlands)

    Waal, Benny de; Breman, Paul; Batenburg, Ronald

    2012-01-01

    Do individual characteristics influence how the quality of work is related to the use of a workflow management system (WFM) in a Dutch social insurance organisation? This key question is addressed in this paper. Building upon DeLone and McLean’s model, we investigated the effects of gender, age, edu

  18. Occupational noise in printing companies.

    Science.gov (United States)

    Mihailovic, Aleksandra; Grujic, Selena D; Kiurski, Jelena; Krstic, Jelena; Oros, Ivana; Kovacevic, Ilija

    2011-10-01

    The extent of noise in five printing companies in Novi Sad, Serbia, was determined using TES-1358A Sound Analyzer with RS-232 Interface. The data on equivalent A-level (dBA), as well as, maximum and minimum sound pressure levels were collected. It was found that folders and offset printing units are the predominant noise sources, with the average L (eq) levels of 87.66 and 82.7 dBA, respectively. Forty percent of the machines produced noise levels above the limiting threshold level of 85 dBA, allowed by law. The noise in all printing companies was dominated by higher frequency noise, and the maximum level mostly appeared at 4,000 Hz. For offset printing machines and folders, the means of L (eq) levels exceeded the permissible levels given by NR-80 curve at higher frequencies. There are no published studies of occupational noise and hearing impairment of workers exposed to hazardous noise in printing industry in Serbia. More extensive studies are needed to determine the exact impact of noise on the workers. Technical and organizational measures in order to control noise and prevent noise exposure, and general hearing conservation program to protect workers, should be introduced in printing industry.

  19. Human factors model concerning the man-machine interface of mining crewstations

    Science.gov (United States)

    Rider, James P.; Unger, Richard L.

    1989-01-01

    The U.S. Bureau of Mines is developing a computer model to analyze the human factors aspect of mining machine operator compartments. The model will be used as a research tool and as a design aid. It will have the capability to perform the following: simulated anthropometric or reach assessment, visibility analysis, illumination analysis, structural analysis of the protective canopy, operator fatigue analysis, and computation of an ingress-egress rating. The model will make extensive use of graphics to simplify data input and output. Two dimensional orthographic projections of the machine and its operator compartment are digitized and the data rebuilt into a three dimensional representation of the mining machine. Anthropometric data from either an individual or any size population may be used. The model is intended for use by equipment manufacturers and mining companies during initial design work on new machines. In addition to its use in machine design, the model should prove helpful as an accident investigation tool and for determining the effects of machine modifications made in the field on the critical areas of visibility and control reach ability.

  20. Genesis machines

    CERN Document Server

    Amos, Martyn

    2014-01-01

    Silicon chips are out. Today's scientists are using real, wet, squishy, living biology to build the next generation of computers. Cells, gels and DNA strands are the 'wetware' of the twenty-first century. Much smaller and more intelligent, these organic computers open up revolutionary possibilities. Tracing the history of computing and revealing a brave new world to come, Genesis Machines describes how this new technology will change the way we think not just about computers - but about life itself.

  1. Hemodialysis machine technology: a global overview.

    Science.gov (United States)

    Polaschegg, Hans-Dietrich

    2010-11-01

    The market for hemodialysis machines, the background, the current products of manufacturers and the features of hemodialysis machines are described in this article. In addition to the established companies and their products, Chinese manufacturers, and new developments for home hemodialysis, are outlined based on publications available on the internet and patent applications. Here, a critical review of the state of the art questions the medical usefulness of high-tech developments, compared with the benefits of more frequent and/or longer dialysis treatment with comparable simple machines.

  2. Photonometers for coating and sputtering machines

    Directory of Open Access Journals (Sweden)

    Václavík J.

    2013-05-01

    Full Text Available The concept of photonometers (alternative name of optical monitor of a vacuum deposition process for coating and sputtering machines is based on photonometers produced by companies like SATIS or HV Dresden. Photometers were developed in the TOPTEC centre and its predecessor VOD (Optical Development Workshop of Institut of Plasma Physics AS CR for more than 10 years. The article describes current status of the technology and ideas which will be incorporated in next development steps. Hardware and software used on coating machines B63D, VNA600 and sputtering machine UPM810 is presented.

  3. Machinability of Stellite 6 hardfacing

    Science.gov (United States)

    Benghersallah, M.; Boulanouar, L.; Le Coz, G.; Devillez, A.; Dudzinski, D.

    2010-06-01

    This paper reports some experimental findings concerning the machinability at high cutting speed of nickel-base weld-deposited hardfacings for the manufacture of hot tooling. The forging work involves extreme impacts, forces, stresses and temperatures. Thus, mould dies must be extremely resistant. The aim of the project is to create a rapid prototyping process answering to forging conditions integrating a Stellite 6 hardfacing deposed PTA process. This study talks about the dry machining of the hardfacing, using a two tips machining tool and a high speed milling machine equipped by a power consumption recorder Wattpilote. The aim is to show the machinability of the hardfacing, measuring the power and the tip wear by optical microscope and white light interferometer, using different strategies and cutting conditions.

  4. Machinability of Stellite 6 hardfacing

    Directory of Open Access Journals (Sweden)

    Dudzinski D.

    2010-06-01

    Full Text Available This paper reports some experimental findings concerning the machinability at high cutting speed of nickel-base weld-deposited hardfacings for the manufacture of hot tooling. The forging work involves extreme impacts, forces, stresses and temperatures. Thus, mould dies must be extremely resistant. The aim of the project is to create a rapid prototyping process answering to forging conditions integrating a Stellite 6 hardfacing deposed PTA process. This study talks about the dry machining of the hardfacing, using a two tips machining tool and a high speed milling machine equipped by a power consumption recorder Wattpilote. The aim is to show the machinability of the hardfacing, measuring the power and the tip wear by optical microscope and white light interferometer, using different strategies and cutting conditions.

  5. Company as mediator for sustainable development: work in the TRANSPETRO nearest community of Chacaras Douradinho for public policy of Uberlandia, MG-Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Boloni, Leonardo [WBS Empreendimentos Ltda., Salvador, BA (Brazil); Vidal, Marlon; Castro, Newton Camelo de [PETROBRAS Transporte S.A. (TRANSPETRO), Rio de Janeiro, RJ (Brazil)

    2009-07-01

    In this paper we will present the experience of relationship between the team of keeping track of pro pipelines and TRANSPETRO and the Chacaras Douradinho community, particularly in this community approach to public bodies of the city of Uberlandia, MG, in view of the population's access to public policies available in the region. Through these links with public agencies and also with an association of residents, has been made, more intensively between 2006 and 2008, activities of environmental in nature Chacaras Douradinho, a community across the range of Pipeline Sao Paulo - Brazil - OSBRA situated in rural area of the city and still is considered by the local mayor as an irregular. This impossible to receive the various services offered by municipal authorities. Chacaras Douradinho residing in approximately 200 families, most low-income, who do not have documentation of their land, living in temporary work, family agriculture and the resources that they possess. The proposed work aligns with the concept of sustainability, based on the National Program of Social and Environmental Responsibility TRANSPETRO. (author)

  6. Práxis de comunidade orgânica no trabalho: uma estratégia que melhora a performance da empresa / Praxis for community organic at work: a strategiy that improvies performance of the company

    Directory of Open Access Journals (Sweden)

    Jacir Leonir Casagrande

    2013-05-01

    Full Text Available Esta pesquisa, de abordagem qualitativa e do tipo estudo de caso, teve como objetivo compreender a práxis de comunidade orgânica desenvolvida no ambiente de trabalho de uma empresa brasileira e a relação com a qualidade de vida de seus trabalhadores. Os dados foram coletados no ambiente laboral, junto a 125 trabalhadores, por meio de observação participante e entrevistas. A análise dos dados, seguindo diretrizes qualitativas, foi conduzida pela técnica de identificação de categorias. A primeira análise mostra a dinâmica do ambiente laboral como uma práxis que é construída no cotidiano das diversas interações de trabalho. O processo de análise-reflexão-síntese dessa práxis evidencia um conjunto de categorias de dimensão técnico-humanística, que se caracteriza como um “construto de comunidade orgânica”. Essa práxis repercute na melhoria da qualidade de vida dos trabalhadores, no ambiente laboral e fora dele, e também na vida da própria empresa. As concepções teórico-metodológicas evidenciadas no estudo se constituem como um referencial para análise de contextos de trabalho, com vistas a diagnosticar as condições do ambiente laboral e também a gerar reflexões no contexto acadêmico e organizacional, visando a suscitar pesquisas sobre a temática e a aplicação do construto de comunidade orgânica no cotidiano de organizações com a finalidade de promover a saúde da população envolvida.Qualitative approach research, case-study, whose objective was to understand the organic community praxis performed in the workplace of a Brazilian company, and its relationship towards the quality of life of their employees. The data were collected from 125 employees of the company through participating observation and interview. The data analysis, following qualitative guidelines, was conducted with the aid of a class identification technique. The first analysis shows the dynamics of the work atmosphere as a praxis built

  7. Simulating Turing machines on Maurer machines

    NARCIS (Netherlands)

    Bergstra, J.A.; Middelburg, C.A.

    2008-01-01

    In a previous paper, we used Maurer machines to model and analyse micro-architectures. In the current paper, we investigate the connections between Turing machines and Maurer machines with the purpose to gain an insight into computability issues relating to Maurer machines. We introduce ways to

  8. Future database machine architectures

    OpenAIRE

    Hsiao, David K.

    1984-01-01

    There are many software database management systems available on many general-purpose computers ranging from micros to super-mainframes. Database machines as backened computers can offload the database management work from the mainframe so that we can retain the same mainframe longer. However, the database backend must also demonstrate lower cost, higher performance, and newer functionality. Some of the fundamental architecture issues in the design of high-performance and great-capacity datab...

  9. Environmentally Friendly Machining

    CERN Document Server

    Dixit, U S; Davim, J Paulo

    2012-01-01

    Environment-Friendly Machining provides an in-depth overview of environmentally-friendly machining processes, covering numerous different types of machining in order to identify which practice is the most environmentally sustainable. The book discusses three systems at length: machining with minimal cutting fluid, air-cooled machining and dry machining. Also covered is a way to conserve energy during machining processes, along with useful data and detailed descriptions for developing and utilizing the most efficient modern machining tools. Researchers and engineers looking for sustainable machining solutions will find Environment-Friendly Machining to be a useful volume.

  10. HMI-Design of System Solutions in Control Rooms. Description of a Working Process from a Human-Machine Perspective; MMI-design av systemloesningar i kontrollrum. Arbetsprocess foer utformning utifraan ett maenniska-maskinperspektiv

    Energy Technology Data Exchange (ETDEWEB)

    Bligaard, Lars-Ola; Andersson, Jonas; Thunberg, Anna; Osvalder, Anna-Lisa

    2008-01-15

    To stay competitive, the process industry of today faces increasing demands of continuous development for efficient use of both technical and human resources. An important step is to create new useful technical solutions, which also bring demands on functionality and usability. Functionality means that the new technology fulfils its purpose, while usability means that the human operator knows how to handle the new technology. If any of these two components are inferior, the potential of new technology will never be fully utilized. Today, a growing amount of advanced information technology is being used in supervisory control, at the same time as the process complexity is increasing. The technology has thereby become more difficult to understand, supervise and control, when processes, connections and logics are not visible in the same way as earlier. An increased level of automation together with reduced work force is also a contributing factor. Due to this, human-machine interaction (HMI) has become a more important aspect of quality in the development of new technology. From the operators' point of view, it is important that the development takes place with an increased transparency of the technical system, as well as reduction of the amount of information that has to be processed by the operator. To achieve a good human-machine interaction, it has to be considered during all phases in the development process of control room design. It is important that relevant hand-books and guidelines are used, but also a working process, which describes how the development work should be performed and the relationship between different parts in the process. The aim of this project was to present a general report in Swedish, which describes a working process for development of useful operator interfaces, work tasks, instructions, and working environments. The report is primarily aimed for the process industry, but can be useful in all other areas including interaction

  11. Global electricity company profiles

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    Global Electricity Company Profiles examines the operations and strategies of 60 of the leading electricity companies in the world. Through its analysis of the key players, the report provides a comprehensive review of the current state of the global electricity industry. Using electricity sales as its criteria, the most successful companies are compared in terms of their national, regional and global importance. Global Electricity Company Profiles provides an outline of each company, its structure and operations, as well as key financial data. The detailed performance benchmarking and review of expectations for future development for each individual company provide a wealth of invaluable strategic information not available elsewhere. (author)

  12. Computer a history of the information machine

    CERN Document Server

    Campbell-Kelly, Martin; Ensmenger, Nathan; Yost, Jeffrey R

    2013-01-01

    This history of the computer explores the roots of the industry's development, tracing not only the development of the machine itself--beginning with Charles Babbage's 1833 mechanical prototype--but also chronicling the effects of manufacturing and sales innovations by companies that made the boom possible.

  13. Jack Sewing Machine Co.,Ltd.

    Institute of Scientific and Technical Information of China (English)

    2004-01-01

    Jack Sewing Machine Co., Ltd. has a staff of over 1000, of which 83 personals engaged in the development and research,accounting for 8.3% of the total staff. In 2002, the company established a comprehensive center for research and development,integrating the design, sourcing of parts, and the design and manufacturing of uniform together with installation and experiment.

  14. Machine Learning for Medical Imaging.

    Science.gov (United States)

    Erickson, Bradley J; Korfiatis, Panagiotis; Akkus, Zeynettin; Kline, Timothy L

    2017-01-01

    Machine learning is a technique for recognizing patterns that can be applied to medical images. Although it is a powerful tool that can help in rendering medical diagnoses, it can be misapplied. Machine learning typically begins with the machine learning algorithm system computing the image features that are believed to be of importance in making the prediction or diagnosis of interest. The machine learning algorithm system then identifies the best combination of these image features for classifying the image or computing some metric for the given image region. There are several methods that can be used, each with different strengths and weaknesses. There are open-source versions of most of these machine learning methods that make them easy to try and apply to images. Several metrics for measuring the performance of an algorithm exist; however, one must be aware of the possible associated pitfalls that can result in misleading metrics. More recently, deep learning has started to be used; this method has the benefit that it does not require image feature identification and calculation as a first step; rather, features are identified as part of the learning process. Machine learning has been used in medical imaging and will have a greater influence in the future. Those working in medical imaging must be aware of how machine learning works. (©)RSNA, 2017.

  15. Machine Transliteration

    CERN Document Server

    Knight, K; Knight, Kevin; Graehl, Jonathan

    1997-01-01

    It is challenging to translate names and technical terms across languages with different alphabets and sound inventories. These items are commonly transliterated, i.e., replaced with approximate phonetic equivalents. For example, "computer" in English comes out as "konpyuutaa" in Japanese. Translating such items from Japanese back to English is even more challenging, and of practical interest, as transliterated items make up the bulk of text phrases not found in bilingual dictionaries. We describe and evaluate a method for performing backwards transliterations by machine. This method uses a generative model, incorporating several distinct stages in the transliteration process.

  16. Learning with Support Vector Machines

    CERN Document Server

    Campbell, Colin

    2010-01-01

    Support Vectors Machines have become a well established tool within machine learning. They work well in practice and have now been used across a wide range of applications from recognizing hand-written digits, to face identification, text categorisation, bioinformatics, and database marketing. In this book we give an introductory overview of this subject. We start with a simple Support Vector Machine for performing binary classification before considering multi-class classification and learning in the presence of noise. We show that this framework can be extended to many other scenarios such a

  17. 企业员工轮班作业与职业应激关系分析%Analysis of relationship between shift-work and occupational stress among workers from different companies

    Institute of Scientific and Technical Information of China (English)

    谷桂珍; 余善法; 周文慧; 吴辉

    2016-01-01

    Objective To investigate the relationship between work in shifts and occupational stress.Methods A total of 5338 employees from 13 companies were investigated by cluster sampling,and occupational stress measuring tools,job content questionnaire,and effort-reward imbalance questionnaire were used to investigate occupational stress factors,stress reaction,and the condition of work in shifts.Results The employees who worked in shifts accounted for 46.6%.The condition of work in shifts varied significantly across different companies,employees with different individual features (including sex,job title,degree of education,age,working years,smoking,and drinking),and employees with different weekly working times (P<0.01 or P< 0.05);health status was associated with work in shifts (P<0.01);compared with the employees who did not work in shifts,those who worked in shifts had significantly lower scores of technology utilization,work control level,psychological need,reward,social support,and job satisfaction (P<0.01 or P<0.05),as well as significantly higher scores of physical demands,effort,depressive symptoms,and negative affectivity (P<0.01).Conclusion Work in shifts can affect health status,and is associated with occupational stress.%目的 探讨轮班作业及其与职业应激关系.方法 采取整群抽样的方法对13家企业5 338名工人进行调查,用职业紧张测量工具、工作内容问卷和付出-回报失衡问卷等调查工人的职业紧张因素、紧张反应和轮班情况.结果 轮班作业人数占46.6%,不同企业、不同个体特征(包括性别、岗位、文化程度、年龄、工龄、吸烟、饮酒情况)和不同周工作时间组间轮班作业情况有差异,差异有统计学意义(P<0.01或P<0.05);健康状况与轮班作业相关(P<0.01);轮班作业组的技术利用、工作控制水平、心理需求、回报、社会支持、工作满意感评分均低于非轮班作业

  18. Work ability and stress in a bus transportation company in Belo Horizonte, Brazil Avaliação da capacidade para o trabalho e estresse em uma empresa de transporte coletivo de Belo Horizonte, Brasil

    Directory of Open Access Journals (Sweden)

    Rosana Ferreira Sampaio

    2009-02-01

    Full Text Available Demographic, occupational and psychosocial characteristics affect the health and occupational performance of workers. The objective of the present study was to elaborate a profile of the work ability and factors that affect it in a bus transportation company in Belo Horizonte, Brazil. The instruments used included a socio-demographic and occupational questionnaire, the Work Ability Index and the Job Stress Scale. Demographic information revealed that 85.7% of the 126 employees of the company were active workers, 98% were males, with an average of 39 years of age (SD= 10 and 79 months working in the company (SD= 68; more than half reported having a low schooling level. In terms of personal habits, 88% were exposed to one or more risk factors, especially a sedentary lifestyle. The average strain value (as a consequence of stress was 0.78 (SD= 0.2 and 75.3% reported episodes of violence at the workplace. The work ability was good to excellent among 89% of the workers. Results from the logistic regression analysis showed that strain was the only significant variable in relation to the Work Ability Index, (estimated odds ratio of 0.02. The results suggest that psychosocial factors presented the greatest association with work ability, and preventive and/or corrective measures should be implemented.Características demográficas, ocupacionais e psicossociais afetam a saúde e o desempenho dos trabalhadores. O objetivo deste estudo foi elaborar um perfil da capacidade para o trabalho e fatores que a afetam em uma empresa de transporte coletivo de Belo Horizonte, Brasil. Os instrumentos utilizados foram o Índice de Capacidade para o Trabalho, a Job Stress Scale e um questionário sociodemográfico e ocupacional. Dos 126 trabalhadores, 14,3% estavam aposentados ou afastados, todos por doença. Entre os ativos, a maioria era do sexo masculino (98%, com idade média de 39 anos (DP=10, baixa escolaridade (acima de 50% e tempo médio na empresa de 79 meses

  19. Mobbing in Company: Levels and Typology

    Directory of Open Access Journals (Sweden)

    Arnejčič Beno

    2016-12-01

    Full Text Available Background and purpose: The individual is exposed to ever more covert psychological violence or mobbing in workplace within companies. The aim of this study is to analyse the level and the types of psychological violence within a company in which the individual works in their daily lives.

  20. Machine Protection

    CERN Document Server

    Schmidt, R

    2014-01-01

    The protection of accelerator equipment is as old as accelerator technology and was for many years related to high-power equipment. Examples are the protection of powering equipment from overheating (magnets, power converters, high-current cables), of superconducting magnets from damage after a quench and of klystrons. The protection of equipment from beam accidents is more recent. It is related to the increasing beam power of high-power proton accelerators such as ISIS, SNS, ESS and the PSI cyclotron, to the emission of synchrotron light by electron–positron accelerators and FELs, and to the increase of energy stored in the beam (in particular for hadron colliders such as LHC). Designing a machine protection system requires an excellent understanding of accelerator physics and operation to anticipate possible failures that could lead to damage. Machine protection includes beam and equipment monitoring, a system to safely stop beam operation (e.g. dumping the beam or stopping the beam at low energy) and an ...

  1. 基于行动导向的《数控加工工艺与手工编程》课程开发%Vocational Courses Development of CNC Machining Technology and Manual Programming Based on Working Process

    Institute of Scientific and Technical Information of China (English)

    王艳宜

    2011-01-01

    从基于行动导向课程开发基础流程、相关概念及行动领域分析-情境设计-课程实施等几个方面介绍了《数控加工工艺与手工编程》课程的开发,对《数控加工工艺与手工编程》课程教学如何实现基于工作过程导向的教学改革进行了探索与实践。%According to the working process of a systematic curriculum development based on the basic processes, concepts and actions related to the field of situational analysis of the design - Team - building project of the teaching materials development and other aspects, the aper introduces the development of "CNC machining technology and manual programming "course development, this paper discusses how to implement the pedagogical reforms based on working process for NC programing and machining curriculum teaching.

  2. Returning to Work

    Science.gov (United States)

    ... when work tasks can be upgraded to full duty. What can a person returning to work do? ... to-work program that includes transitional work for employees is an important component of a company's healthy ...

  3. ANALYSIS OF DECREASE MACHINABILITY POSSIBLE CAUSES FOR CLAIMED ALLOY

    Directory of Open Access Journals (Sweden)

    Nataša Náprstková

    2016-09-01

    Full Text Available The Faculty of Production Technology and Management is often asked by companies with a request to solve a specific technical task. One of these tasks was the analysis of aluminum alloy worsened machinability when the rods from this alloy exhibited against assumption significantly worse (longer chips during machining. The alloy was complaint and, of course, it created economic damage. Obviously, the company was interested in the causes of this alloy behavior change that could possibly generate future complaints procedures to defend itself better, or to avoid mistakes in the production of the material. At the faculty analysis that could contribute to identifying the cause of the worsened machinability were done.

  4. Analysis of machining and machine tools

    CERN Document Server

    Liang, Steven Y

    2016-01-01

    This book delivers the fundamental science and mechanics of machining and machine tools by presenting systematic and quantitative knowledge in the form of process mechanics and physics. It gives readers a solid command of machining science and engineering, and familiarizes them with the geometry and functionality requirements of creating parts and components in today’s markets. The authors address traditional machining topics, such as: single and multiple point cutting processes grinding components accuracy and metrology shear stress in cutting cutting temperature and analysis chatter They also address non-traditional machining, such as: electrical discharge machining electrochemical machining laser and electron beam machining A chapter on biomedical machining is also included. This book is appropriate for advanced undergraduate and graduate mechani cal engineering students, manufacturing engineers, and researchers. Each chapter contains examples, exercises and their solutions, and homework problems that re...

  5. The Balanced Company

    DEFF Research Database (Denmark)

    Controlling the sustainability of production processes and ethical employment of the work force in suppliers' production facilities far away from the home country has resulted in new challenges for managers. They now have to consider how important it is for customers, investors and employees to see...... that a company is respected in wider society and behaves according to ethical standards. Strategists and Leaders need to make balanced choices about long-term goals and the allocation of resources. They need to analyse, understand and adjust strategies to market, political, value and technology related changes...... in their environments. Communication specialists need to make balanced decisions which take the different value systems and assumptions of stakeholders into consideration. Change specialists need to balance the need for continuity and change. Managers need to make balanced decisions about whether to achieve goals...

  6. Chemical-to-mechanical energy conversion in biomacromolecular machines: a plasmon and optimum control theory for directional work. 1. General considerations.

    Science.gov (United States)

    Starikov, Evgeni B; Panas, Itai; Nordén, Bengt

    2008-07-17

    To rationalize coherence and mechanochemical aspects of proteins acting as molecular machines, a plasmon concept for dealing with protein nonequilibrium dynamics is introduced and tested with respect to thermodynamic consistency. A stochastic optimum-control theory for protein conformational diffusion is developed and the corresponding stochastic Newton's second law derived for optimum-controlled conformational diffusion in proteins. The plasmon concept is shown to be consistent with this theory, in that optical plasmons can pump entropy out of (or into) the protein, decreasing (or increasing) its conformational diffusion and, at the same time, help decrease intra- and intermolecular friction, as well as (potentially) break the symmetry of the latter. Instead, acoustic plasmons may break the spatial symmetry of a protein's "potential of mean force", thus converting it into an effective Brownian ratchet potential by applying quasistatic deformational corrections to the former. These concepts seem to be of rather general applicability and might also be useful when studying, for example, intercalation of cationic dyes into DNA duplexes, positively charged oligopeptide transduction through cell membranes, or even DNA translocation through nanopores.

  7. Engineering molecular machines

    Science.gov (United States)

    Erman, Burak

    2016-04-01

    Biological molecular motors use chemical energy, mostly in the form of ATP hydrolysis, and convert it to mechanical energy. Correlated thermal fluctuations are essential for the function of a molecular machine and it is the hydrolysis of ATP that modifies the correlated fluctuations of the system. Correlations are consequences of the molecular architecture of the protein. The idea that synthetic molecular machines may be constructed by designing the proper molecular architecture is challenging. In their paper, Sarkar et al (2016 New J. Phys. 18 043006) propose a synthetic molecular motor based on the coarse grained elastic network model of proteins and show by numerical simulations that motor function is realized, ranging from deterministic to thermal, depending on temperature. This work opens up a new range of possibilities of molecular architecture based engine design.

  8. MERGER ACCOUTING FOR COMPANIES

    Directory of Open Access Journals (Sweden)

    SUCIU GHEORGHE

    2014-05-01

    Full Text Available Companies, especially nowadays, are characterized through great mobility, fast circulation of capital, occurring in their chase for profit. In this context, companies look for alliances, economical and political assistance. These objectives can materialize through merging of companies. The merger can be internal (between Romanian companies or transboundary, which includes foreign companies. In order to correctly reflect these events, the merger operations must be regulated and must respect national and international regulations. One important request concerning the merger operations is that the accounting values of the assets, debts and ownership equity must be brought to the present financial value.

  9. Quantum-Enhanced Machine Learning.

    Science.gov (United States)

    Dunjko, Vedran; Taylor, Jacob M; Briegel, Hans J

    2016-09-23

    The emerging field of quantum machine learning has the potential to substantially aid in the problems and scope of artificial intelligence. This is only enhanced by recent successes in the field of classical machine learning. In this work we propose an approach for the systematic treatment of machine learning, from the perspective of quantum information. Our approach is general and covers all three main branches of machine learning: supervised, unsupervised, and reinforcement learning. While quantum improvements in supervised and unsupervised learning have been reported, reinforcement learning has received much less attention. Within our approach, we tackle the problem of quantum enhancements in reinforcement learning as well, and propose a systematic scheme for providing improvements. As an example, we show that quadratic improvements in learning efficiency, and exponential improvements in performance over limited time periods, can be obtained for a broad class of learning problems.

  10. Quantum-Enhanced Machine Learning

    Science.gov (United States)

    Dunjko, Vedran; Taylor, Jacob M.; Briegel, Hans J.

    2016-09-01

    The emerging field of quantum machine learning has the potential to substantially aid in the problems and scope of artificial intelligence. This is only enhanced by recent successes in the field of classical machine learning. In this work we propose an approach for the systematic treatment of machine learning, from the perspective of quantum information. Our approach is general and covers all three main branches of machine learning: supervised, unsupervised, and reinforcement learning. While quantum improvements in supervised and unsupervised learning have been reported, reinforcement learning has received much less attention. Within our approach, we tackle the problem of quantum enhancements in reinforcement learning as well, and propose a systematic scheme for providing improvements. As an example, we show that quadratic improvements in learning efficiency, and exponential improvements in performance over limited time periods, can be obtained for a broad class of learning problems.

  11. Putting Your Company's Whole Brain to Work.

    Science.gov (United States)

    Leonard, Dorothy; Straus, Susaan

    1997-01-01

    Managers who foster innovation succeed in getting different approaches to grate against one another in a productive process called creative abrasion. They nurture and know how to use a cognitively diverse environment. (JOW)

  12. Putting Your Company's Whole Brain to Work.

    Science.gov (United States)

    Leonard, Dorothy; Straus, Susaan

    1997-01-01

    Managers who foster innovation succeed in getting different approaches to grate against one another in a productive process called creative abrasion. They nurture and know how to use a cognitively diverse environment. (JOW)

  13. 航空无刷同步电机起动发电系统电动运行励磁特性%Excitation Characteristic for Starter/Generator System Working on Starting Process of Brushless Synchronous Machine

    Institute of Scientific and Technical Information of China (English)

    李岩; 张超; 王冬梅

    2012-01-01

    对航空无刷同步电机起动发电系统电动运行的励磁特性进行了理论分析,提出了交直流混合励磁方案,建立了系统的MATLAB/SIMULINK仿真模型。仿真结果表明,主发电机励磁电流平均值随励磁机励磁频率的升高而减小,且主发电机励磁电流脉动率随转速升高有唯一极小值点,该点可作为交直流励磁的切换点。%The excitation characteristic for starter/generator system working on starting process of brushless synchronous machine was analyzed in this paper first,and then a new excitation method is given,it was AC an DC excitation.Based on MATLAB/SIMULINK,the simulation model for the system was built.Simulation results state that the average current of main machine would decrease with the increase of excitation frequency and the rate of variation for excitation current had only one minimum value with the increase of speed,and the value just could be used for switching.

  14. Automation of printing machine

    OpenAIRE

    Sušil, David

    2016-01-01

    Bachelor thesis is focused on the automation of the printing machine and comparing the two types of printing machines. The first chapter deals with the history of printing, typesettings, printing techniques and various kinds of bookbinding. The second chapter describes the difference between sheet-fed printing machines and offset printing machines, the difference between two representatives of rotary machines, technological process of the products on these machines, the description of the mac...

  15. Identifying Motivational Factors within a Multinational Company

    OpenAIRE

    Daniela Bradutanu

    2011-01-01

    The aim of the study is to identify the main motivational factors within a multinational company. The first objective is to identify work functions, formulated on Abraham Maslow’s pyramid, following the identification of the key characteristics that motivate an employee at the work place and last, but not least, the type of motivation that employees focus, intrinsic or extrinsic. The research method targeted a questionnaire based survey, including various company employees and an interv...

  16. Laser applications in machining slab materials

    Science.gov (United States)

    Zhang, Xiaoping

    1990-10-01

    Since the invention of the laser back in 1960, laser technology has been extensively applied in many fields of science and technology. These has been a history of nearly two decades of using lasers as an energy source in machining materials, such as cutting, welding, ruling and boring, among other operations. With the development of flexible automation in production, the advantages of laser machining have has grown more and more obvious. The combination of laser technology and computer science further promotes the enhancement and upgrading of laser machining and related equipment. At present, many countries are building high quality laser equipment for machining slab materials, such as the Coherent and Spectra Physics corporations in the United States, the Trumpf Corporation in West Germany, the Amada Corporation in Japan, and the Bystronic Corporation in Switzerland, among other companies.

  17. Open Source Telecommunication Companies

    Directory of Open Access Journals (Sweden)

    Peter Liu

    2007-08-01

    Full Text Available Little is known about companies whose core business is selling telecommunications products that lever open source projects. Open source telecommunications (OST companies operate in markets that are very different from typical software product markets. The telecommunications market is regulated, vertically integrated, and proprietary designs and special chips are widely used. For a telecommunications product to be useful, it must interact with both access network products and core network products. Due to specifications in Service Agreements Levels, penalties for failures of telecommunications products are very high. This article shares information that is not widely known, including a list of OST companies and the open source projects on which they depend, the size and diversity of venture capital investment in OST companies, the nature of the commercial product-open source software and company-project relationships, ways in which OST companies make money, benefits and risks of OST companies, and competition between OST companies. Analysis of this information provides insights into the ways in which companies can build business models around open source software. These findings will be of interest to entrepreneurs, top management teams of incumbent companies that sell telecommunications products, and those who care about Ontario's ability to compete globally.

  18. Machine musicianship

    Science.gov (United States)

    Rowe, Robert

    2002-05-01

    The training of musicians begins by teaching basic musical concepts, a collection of knowledge commonly known as musicianship. Computer programs designed to implement musical skills (e.g., to make sense of what they hear, perform music expressively, or compose convincing pieces) can similarly benefit from access to a fundamental level of musicianship. Recent research in music cognition, artificial intelligence, and music theory has produced a repertoire of techniques that can make the behavior of computer programs more musical. Many of these were presented in a recently published book/CD-ROM entitled Machine Musicianship. For use in interactive music systems, we are interested in those which are fast enough to run in real time and that need only make reference to the material as it appears in sequence. This talk will review several applications that are able to identify the tonal center of musical material during performance. Beyond this specific task, the design of real-time algorithmic listening through the concurrent operation of several connected analyzers is examined. The presentation includes discussion of a library of C++ objects that can be combined to perform interactive listening and a demonstration of their capability.

  19. Cultura trabajo- familia y compromiso organizacional en empresa de servicios Cultura trabalho-família e compromisso organizacional numa empresa de serviços Work-family culture and organizational commitment in a services company

    Directory of Open Access Journals (Sweden)

    Andrés Eduardo Jiménez Figueroa

    2009-12-01

    financial services company located in the region of Maule ( Chile , responded three instruments of measurement. There was a significant relationship between work-family culture variables and organizational commitment, where the culture appears strongly associated to the commitment (r = 0,483, p = 0.05. While most executive support from the company is perceived by workers, the greater the commitment to them with company, particularly with its normative (r =0,417, p< 0,000 and affective commitment (r = 0,347, p < 0,000.

  20. Electrochemical Discharge Machining Process

    Directory of Open Access Journals (Sweden)

    Anjali V. Kulkarni

    2007-09-01

    Full Text Available Electrochemical discharge machining process is evolving as a promising micromachiningprocess. The experimental investigations in the present work substantiate this trend. In the presentwork, in situ, synchronised, transient temperature and current measurements have been carriedout. The need for the transient measurements arose due to the time-varying nature of the dischargeformation and time varying circuit current. Synchronised and transient measurements revealedthe discrete nature of the process. It also helped in formulating the basic mechanism for thedischarge formation and the material removal in the process. Temperature profile on workpieceand in electrochemical discharge machining cell is experimentally measured using pyrometer,and two varieties of K-type thermocouples. Surface topography of the discharge-affected zoneson the workpiece has been carried out using scanning electron microscope. Measurements andsurface topographical studies reveal the potential use of this process for machining in micronregime. With careful experimental set-up design, suitable supply voltage and its polarity, theprocess can be applied for both micromachining and micro-deposition. It can be extended formachining and or deposition of wide range of materials.

  1. Behind the machines

    CERN Document Server

    Laëtitia Pedroso

    2010-01-01

    One of the first things we think about when someone mentions physics is the machines. But behind the machines, there are the men and women who design, build and operate them. In an exhibition at the Thinktank planetarium’s art gallery in Birmingham (UK), Claudia Marcelloni and her husband Neal Hartman—she is a photographer and Outreach Officer for ATLAS, while he is an engineer working on the ATLAS pixel detector—explore the human side of scientists.   The exhibition at the Thinktank Planetarium art gallery, Birmingham (UK). It all began two years ago with the publication of Exploring the mystery of matter, a book about ATLAS. “A Norwegian physicist friend, Heidi Sandaker, saw my photographs and suggested that I display them in a museum. I thought this was an interesting idea, except that the photos consisted entirely of depictions of machinery, with human beings completely absent. For me, showing the people who are behind the machines and the fascination ...

  2. The Danish East India Company

    DEFF Research Database (Denmark)

    Sørensen, Karsten Engsig

    2005-01-01

    The article analysis the first Danish East India Company incorporated in 1616, which was the first Danish Stock Company and which has impacts even on modern Danish company la......The article analysis the first Danish East India Company incorporated in 1616, which was the first Danish Stock Company and which has impacts even on modern Danish company la...

  3. Machine speech and speaking about machines

    Energy Technology Data Exchange (ETDEWEB)

    Nye, A. [Univ. of Wisconsin, Whitewater, WI (United States)

    1996-12-31

    Current philosophy of language prides itself on scientific status. It boasts of being no longer contaminated with queer mental entities or idealist essences. It theorizes language as programmable variants of formal semantic systems, reimaginable either as the properly epiphenomenal machine functions of computer science or the properly material neural networks of physiology. Whether or not such models properly capture the physical workings of a living human brain is a question that scientists will have to answer. I, as a philosopher, come at the problem from another direction. Does contemporary philosophical semantics, in its dominant truth-theoretic and related versions, capture actual living human thought as it is experienced, or does it instead reflect, regardless of (perhaps dubious) scientific credentials, pathology of thought, a pathology with a disturbing social history.

  4. STABILITY OF MOTION OF MOBILE MODULE OF EXPERIMENTAL SETUP IN THE STUDY OF ACTIVE ROTARY WORKING OF MACHINES FOR SOIL TREATMENT

    Directory of Open Access Journals (Sweden)

    Vladimir F. Kupryashkin

    2016-06-01

    Full Text Available Introduction. The paper is devoted to the theoretical study of stability of movement of the movable unit of the experimental setup intended for the exploration of the active rotational working organs of the car for soil treatment. This takes into account the design features of the mobile unit and features active rotary force interaction of working bodies with the soil. From the analysis of previously conducted both theoretical and experimental studies of this type of working bodies noted the possibility of breaking the stability of the mobile stroke unit, which in turn will have a negative impact on the enforcement of a given method of the experiment program. From the analysis of previous studies shows that the assumptions under which they were made, not allow you to fully take into account the nature of the effect occurring dynamic processes of interaction of active rotary working bodies with the soil on the experimental setup truck driving stability. Materials and Methods. To address the shortcomings in the research, based on a synthesis of the main provisions and laws of mechanics and the experimental data of active rotary force interaction of working bodies with the soil, carried out theoretical studies of stability of movement of the movable unit of the experimental setup in view of its design features and conditions of the experiment. Results. A theoretical study was composed of loading trolley design scheme of the experimental setup with regard to its design features and power factors acting on its working elements, namely, the wheel bearing and studied active rotary working bodies. Processing results of the study allowed the weary twist zone of stable and unstable movement of the movable unit Expo tal installation. The presence of unstable movement zone carts at-leads to a breach of the conditions set by the plan of experimental-governmental research and a negative impact on their quality and purity. Discussion and Conclusions. All of

  5. Rapid Response Small Machining NNR Project 703025

    Energy Technology Data Exchange (ETDEWEB)

    Kanies, Tim

    2008-12-05

    This project was an effort to develop a machining area for small sized parts that is capable of delivering product with a quick response time. This entailed focusing efforts on leaning out specific work cells that would result in overall improvement to the entire machining area. This effort involved securing the most efficient available technologies for these areas. In the end, this incorporated preparing the small machining area for transformation to a new facility.

  6. New approach to training support vector machine

    Institute of Scientific and Technical Information of China (English)

    Tang Faming; Chen Mianyun; Wang Zhongdong

    2006-01-01

    Support vector machine has become an increasingly popular tool for machine learning tasks involving classification, regression or novelty detection. Training a support vector machine requires the solution of a very large quadratic programming problem. Traditional optimization methods cannot be directly applied due to memory restrictions. Up to now, several approaches exist for circumventing the above shortcomings and work well. Another learning algorithm, particle swarm optimization, for training SVM is introduted. The method is tested on UCI datasets.

  7. Superconducting Electric Machines for Ship Propulsion.

    Science.gov (United States)

    1977-02-14

    ship propulsion applications. These concepts evolved from previous work at MIT on superconducting AC machines. The superconducting machines considered were: (1) multipole, low-speed motors, (2) torque compensated motors, (3) high-speed generator, (4) rotating air-gap armature induction motor, (5) thyristor switched AC motors. The first four machine types were studied theoretically while experimental models were constructed of the last two. Preliminary designs were completed...of the five mahcines for an appropriate ship ... propulsion application. In

  8. Active Control of Machine Tool Chatter

    OpenAIRE

    Håkansson, Lars; Claesson, Ingvar; Lagö, Thomas L.

    1999-01-01

    In the turning operation chatter or vibration is a frequent problem, which affects the result of the machining, and, in particular, the surface finish. Tool life is also influenced by vibration. Severe acoustic noise in the working environment frequently occurs as a result of dynamic motion between the cutting tool and the workpiece. By proper machine design, e.g. improved stiffness of the machine structure, the problem of relative dynamic motion between cutting tool and workpiece may be part...

  9. Transferencia y cambio de sistema de trabajo a través de las fronteras: una empresa danesa va a Brasil Transference and change of work system across borders: a Danish company goes to Brazil

    Directory of Open Access Journals (Sweden)

    Robson Rocha

    2010-10-01

    Full Text Available En base a una investigación cualitativa, este artículo explora la transferencia y el cambio de sistemas de trabajo entre fronteras nacionales en una Empresa Multi-Nacional (EMN de Dinamarca. El estudio cualitativo longitudinal recoge el caso de dos factorías pertenecientes a la misma EMN en donde se estudiaron los procesos de transformación del sistema de trabajo. El caso presentado es original al representar un caso no muy estudiado: los problemas que una empresa escandinava encuentra al internacionalizarse en un sistema empresarial bastante diferente. El principal objeto del análisis es las negociaciones en torno a los  cambios en el sistema de organización del trabajo de los dos centros de producción. Se argumenta que las instituciones y las tradiciones de las relaciones entre empleado y directivo del país receptor tienen una fuerte influencia en la forma en que el sistema de trabajo fue adoptado y negociado. La diferente  intepretación de las instituciones nacionales por parte de lo actores organizativos hizo difícil la implantación del sistema de trabajo de Dinamarca a Brasil.Based on qualitative research, this paper explores the transference and change of work systems across national borders in a Danish Multinational Corporation (MNC. A qualitative longitudinal study was made of two factories belonging to the same MNC and the processes of transforming the work system were analyzed. The paper presents a case that has not been subject to a great deal of research: the problems faced by a Scandinavian company when internationalizing into a quite distinct business system. The main object of analysis was the negotiation of the changes in the work systems at the two sites. The host country institutions and worker/manager traditions are shown to have a strong influence on the way  the work system was translated and negotiated. The organizational actors had an understanding of quite different national institutions and made it

  10. Electrical machines mathematical fundamentals of machine topologies

    CERN Document Server

    Gerling, Dieter

    2015-01-01

    Electrical Machines and Drives play a powerful role in industry with an ever increasing importance. This fact requires the understanding of machine and drive principles by engineers of many different disciplines. Therefore, this book is intended to give a comprehensive deduction of these principles. Special attention is given to the precise mathematical derivation of the necessary formulae to calculate machines and drives and to the discussion of simplifications (if applied) with the associated limits. The book shows how the different machine topologies can be deduced from general fundamentals, and how they are linked together. This book addresses graduate students, researchers, and developers of Electrical Machines and Drives, who are interested in getting knowledge about the principles of machine and drive operation and in detecting the mathematical and engineering specialties of the different machine and drive topologies together with their mutual links. The detailed - but nevertheless compact - mat...

  11. Design and manufacturing of abrasive jet machine for drilling operation

    Directory of Open Access Journals (Sweden)

    Mittal Divyansh

    2016-01-01

    Full Text Available Wide application of Abrasive Jet Machine (AJM is found in machining hard and brittle materials. Machining of brittle materials by AJM is due to brittle fracture and removal of micro chips from the work piece. Embedment of the abrasive particles in the brittle materials results in decrease of machining efficiency. In this paper design and manufacturing of AJM has been presented. Various parts of AJM have been designed using ANSYS 16.2 software. The parts are then manufactured indigenously as per designed parameters. The machine fabricated in this work will be used further for process optimization of AJM parameters for machining of glass and ceramics.

  12. SIMULATED MACHINES FOR SOIL TREATMENT FOR FELLING AND SLASH AREAS

    Directory of Open Access Journals (Sweden)

    Alekseev A. E.

    2013-10-01

    Full Text Available The article presents the results of a simulation of functioning machines for tillage in AutoCAD Mechanical environment, the algorithm of machine work and the results of numerical experiments on the developed model

  13. Study on Simulation of Machining Errors Caused by Cutting Force

    Institute of Scientific and Technical Information of China (English)

    SHAO Xiaodong; ZHANG Liu; LIN Zhaoxu

    2006-01-01

    Machining errors caused by cutting force are studied in this paper, and an algorithm to simulate errors is putted forward. In the method, continuous machining process is separated into many machining moments. The deformation of work-piece and cutter at every moment is calculated by finite element method. The machined work-piece is gained by Boolean operation between deformed work-piece and cutter. By analyzing data of final work-piece, machining errors are predicted. The method is proved true by experiment.

  14. Laser machining of advanced materials

    CERN Document Server

    Dahotre, Narendra B

    2011-01-01

    Advanced materialsIntroductionApplicationsStructural ceramicsBiomaterials CompositesIntermetallicsMachining of advanced materials IntroductionFabrication techniquesMechanical machiningChemical Machining (CM)Electrical machiningRadiation machining Hybrid machiningLaser machiningIntroductionAbsorption of laser energy and multiple reflectionsThermal effectsLaser machining of structural ceramicsIntrodu

  15. Psychological empowerment in a recruitment company / Suzette Hartmann

    OpenAIRE

    Hartmann, Suzette

    2003-01-01

    People are without a doubt our most important asset. It is imperative that companies develop their people to unleash their full potential, which will in turn be a benefit to the company. The future of successful, competitive companies will depend on the work force of that company. The context that organisations operate within has undergone a change from a hierarchical structure to one of building of human capital. This means that organisations need leadership as a vehicle to ensure successful...

  16. Social Capital, ICT Use and Company Performance

    DEFF Research Database (Denmark)

    Steinfield, Charles; Scupola, Ada; López-Nicolás, Carolina

    2009-01-01

    to information and opportunity predicted company performance, particularly for small start-up companies. The pattern of results complements prior work that establishes the importance of social capital in regional business clusters by demonstrating how ICT use complements personal relationships to enhance......This study explores how some kinds of ICT uses, as well as social capital and other means of access to knowledge resources, are related to company performance in a knowledge-intensive business cluster. Data were collected through a survey of companies in the Medicon Valley biotech region located...... in Denmark and Southern Sweden. Responding companies included established producers of biotechnology-related products as well as small biotechnology start-up firms emphasizing research and development.  The results suggest that when ICT use was aimed at accessing and enhancing human and intellectual capital...

  17. International company restructuring and the effects on high-skilled employees in lead companies

    DEFF Research Database (Denmark)

    Hansen, Nana Wesley

    2016-01-01

    insulated from international restructuring processes. However, effects on wage and working conditions vary dependent on the motivation for restructuring, and as companies learn to take advantage of pools of skilled employees abroad. Continued international restructuring appear to challenge the insulation......International company restructuring involving knowledge intensive jobs causes increasing concern about the effect on the globalization of high-skilled employees. Drawing on case studies in four Danish-based companies, this article argues that high-skilled employees in lead companies are rarely...

  18. Virtual Design of Mechanical Button Hole Machine based on Solid Works%基于Solid Works的机械扣眼机的虚拟设计

    Institute of Scientific and Technical Information of China (English)

    张爱荣

    2012-01-01

    针对广告行业户外喷绘布面扣眼安装的现状,采用虚拟设计技术,在Solid Works 2010环境下采取整体建模、虚拟装配及检验、有限元分析和生成工程图4个步骤,完成了广告行业用机械扣眼机的虚拟设计,缩短了开发周期,提高了产品品质.

  19. Learning as a Machine: Crossovers between Humans and Machines

    Science.gov (United States)

    Hildebrandt, Mireille

    2017-01-01

    This article is a revised version of the keynote presented at LAK '16 in Edinburgh. The article investigates some of the assumptions of learning analytics, notably those related to behaviourism. Building on the work of Ivan Pavlov, Herbert Simon, and James Gibson as ways of "learning as a machine," the article then develops two levels of…

  20. Conclusion: The balanced company

    DEFF Research Database (Denmark)

    2013-01-01

    This concluding chapter brings together the various research findings of the book "The balanced company - organizing for the 21st Century" and develops a general overview of their implications for our understanding of the balancing processes unfolding in companies and organizations....

  1. Virtual Company and Modelbank

    DEFF Research Database (Denmark)

    Thorsteinsson, Uffe

    1996-01-01

    Ansøgning til Socrates programmet vedr. Tematisk netværk inden for området Virtual Company and Modelbank......Ansøgning til Socrates programmet vedr. Tematisk netværk inden for området Virtual Company and Modelbank...

  2. Allocation for manufacturing companies

    Directory of Open Access Journals (Sweden)

    2010-06-01

    Full Text Available Assuring a high material availability for production is while reducing sourcing costs remains a major logistical challenge for producing companies. Lean economic processes, flexibility and responsiveness - beneficial both for the customer and for the supplier - are characteristics of an excellent customer-supplier relationship. Standard sourcing models offer a field-tested approach for setting up across company boarders processes.

  3. 基于VxWorks的人机界面图形开发系统设计%Design of Human-Machine Interface Library Based on VxWorks

    Institute of Scientific and Technical Information of China (English)

    刘东涛; 肖峰

    2011-01-01

    针对当前嵌入式实时系统VxWorks图形界面开发支持较弱的缺点,结合海军多功能标准台项目,分析了VxWorks实时操作系统下国内外主流图形开发系统的设计原理,采用了基于控件技术的层次化设计和面向对象的设计方法,实现了一种在VxWorks实时操作系统下具有自主知识产权的人机界面图形开发系统JARI EGK.通过多个项目中的应用验证,JARI EGK在功能和性能方面能够满足基于VxWorks实时系统的窗口图形界面开发要求.%According to the disadvantages of graphics interface design under the real-time embedded operation systems VxWorks, and combining with the Multifunction Console projects, this paper analyzes the design principle of graphical user interface library at home and abroad, and adopts the architecture of hierarchical design and object-oriented programming. One kind of graphical user interface library(JARI_EGK) which possesses independent intellectual property rights is realized and used successfully. Through applied to many projects, JARI_EGK is proved to satisfy the requirement of developing graphical interfaces based on Vx Works real-time system.

  4. Study of on-machine error identification and compensation methods for micro machine tools

    Science.gov (United States)

    Wang, Shih-Ming; Yu, Han-Jen; Lee, Chun-Yi; Chiu, Hung-Sheng

    2016-08-01

    Micro machining plays an important role in the manufacturing of miniature products which are made of various materials with complex 3D shapes and tight machining tolerance. To further improve the accuracy of a micro machining process without increasing the manufacturing cost of a micro machine tool, an effective machining error measurement method and a software-based compensation method are essential. To avoid introducing additional errors caused by the re-installment of the workpiece, the measurement and compensation method should be on-machine conducted. In addition, because the contour of a miniature workpiece machined with a micro machining process is very tiny, the measurement method should be non-contact. By integrating the image re-constructive method, camera pixel correction, coordinate transformation, the error identification algorithm, and trajectory auto-correction method, a vision-based error measurement and compensation method that can on-machine inspect the micro machining errors and automatically generate an error-corrected numerical control (NC) program for error compensation was developed in this study. With the use of the Canny edge detection algorithm and camera pixel calibration, the edges of the contour of a machined workpiece were identified and used to re-construct the actual contour of the work piece. The actual contour was then mapped to the theoretical contour to identify the actual cutting points and compute the machining errors. With the use of a moving matching window and calculation of the similarity between the actual and theoretical contour, the errors between the actual cutting points and theoretical cutting points were calculated and used to correct the NC program. With the use of the error-corrected NC program, the accuracy of a micro machining process can be effectively improved. To prove the feasibility and effectiveness of the proposed methods, micro-milling experiments on a micro machine tool were conducted, and the results

  5. The mortality of companies

    Science.gov (United States)

    Daepp, Madeleine I. G.; Hamilton, Marcus J.; West, Geoffrey B.; Bettencourt, Luís M. A.

    2015-01-01

    The firm is a fundamental economic unit of contemporary human societies. Studies on the general quantitative and statistical character of firms have produced mixed results regarding their lifespans and mortality. We examine a comprehensive database of more than 25 000 publicly traded North American companies, from 1950 to 2009, to derive the statistics of firm lifespans. Based on detailed survival analysis, we show that the mortality of publicly traded companies manifests an approximately constant hazard rate over long periods of observation. This regularity indicates that mortality rates are independent of a company's age. We show that the typical half-life of a publicly traded company is about a decade, regardless of business sector. Our results shed new light on the dynamics of births and deaths of publicly traded companies and identify some of the necessary ingredients of a general theory of firms. PMID:25833247

  6. Chip breaking system for automated machine tool

    Science.gov (United States)

    Arehart, Theodore A.; Carey, Donald O.

    1987-01-01

    The invention is a rotary selectively directional valve assembly for use in an automated turret lathe for directing a stream of high pressure liquid machining coolant to the interface of a machine tool and workpiece for breaking up ribbon-shaped chips during the formation thereof so as to inhibit scratching or other marring of the machined surfaces by these ribbon-shaped chips. The valve assembly is provided by a manifold arrangement having a plurality of circumferentially spaced apart ports each coupled to a machine tool. The manifold is rotatable with the turret when the turret is positioned for alignment of a machine tool in a machining relationship with the workpiece. The manifold is connected to a non-rotational header having a single passageway therethrough which conveys the high pressure coolant to only the port in the manifold which is in registry with the tool disposed in a working relationship with the workpiece. To position the machine tools the turret is rotated and one of the tools is placed in a material-removing relationship of the workpiece. The passageway in the header and one of the ports in the manifold arrangement are then automatically aligned to supply the machining coolant to the machine tool workpiece interface for breaking up of the chips as well as cooling the tool and workpiece during the machining operation.

  7. Machinic Deconstruction : literature/ politics/ technics

    NARCIS (Netherlands)

    Ieven, Bram Koen

    2007-01-01

    Taking its cue from Jacques Derrida’s concept of différance, Machinic Deconstruction: Literature / Politics / Technics addresses the question whether it is possible to conceive of a work of technics that is operative at the same quasi-ontological level as différance itself. To do so, this study deve

  8. COMPUTER SIMULATION OF A STIRLING REFRIGERATING MACHINE

    Directory of Open Access Journals (Sweden)

    V.V. Trandafilov

    2015-10-01

    Full Text Available In present numerical research, the mathematical model for precise performance simulation and detailed behavior of Stirling refrigerating machine is considered. The mathematical model for alpha Stirling refrigerating machine with helium as the working fluid will be useful in optimization of these machines mechanical design. Complete non-linear mathematical model of the machine, including thermodynamics of helium, and heat transfer from the walls, as well as heat transfer and gas resistance in the regenerator is developed. Non-dimensional groups are derived, and the mathematical model is numerically solved. Important design parameters are varied and their effect on Stirling refrigerating machine performance determined. The simulation results of Stirling refrigerating machine which include heat transfer and coefficient of performance are presented.

  9. Improvement in microstructure and superconducting properties of single-filament powder-in-tube MgB2 wires by cold working with a swaging machine

    Science.gov (United States)

    Saito, Yusuke; Murakami, Masato; Matsumoto, Akiyoshi; Kumakura, Hiroaki

    2017-06-01

    We investigated the influence of the mechanical deformation method of wire fabrication on the microstructure and superconducting properties of single-filament in situ powder-in-tube (PIT) MgB2 wires. We employed three deformation methods to fabricate the wires: only swaging, groove rolling + roller drawing, and groove rolling + conventional drawing. We found that cold working by swaging has three advantages over the groove rolling + drawing method: (1) improved uniformity of the MgB2 core along the longitudinal direction; (2) higher mass density of the Mg + B (MgB2) core before (after) heat treatment (HT); and (3) well-developed fiber structures of Mg (MgB2) before (after) HT. These three factors greatly enhanced the critical current density (J c) values of PIT MgB2 wires. The highest J c values were obtained through mechanical deformation by swaging for both pure and carbon-doped wires. A J c value of 3.5 × 104 A cm-2 and an engineering critical current density (J e) of 1.1 × 104 A cm-2 were recorded at 4.2 K and 10 T for a swaged wire of 4.5%-carbon-coated boron powder heat-treated at 600 °C for 1 h.

  10. Resultados percibidos obtenidos por las empresas asociados al uso de las prácticas de alta implicación (HIWP (perceived results obtained by companies associated to the use of high involvement work practices

    Directory of Open Access Journals (Sweden)

    Graziela Conci

    2012-06-01

    Full Text Available El objetivo principal de este artículo es investigar las relaciones entre las prácticas de alta implicación (HIWP y los resultados percibidos por los mandos de las empresas. En la investigación identificamos los metaanalisis y revisiones de literatura realizados en los últimos 25 años. Aportamos una revisión de literatura de los artículos publicados en los años no contenidos en las revisiones anteriores (del 2007 al 2011 y que analizan la asociación de los indicadores de productividad, satisfacción, calidad, competitividad o atención al cliente como resultados de la aplicación de las HIWP. Como principal conclusión podemos indicar que la adopción de las HIWP, en general, aporta resultados positivos a las organizaciones. (The main goal of this article is to investigate the relationships between high involvement work practices (HIWP and the results perceived by managers of the companies using them. In the research we identify both the meta-analyses and the literature reviews done in the last 25 years. We present a revision of the literature of the articles published in the years not included in the previous revisions (from 2007 to 2011 and that analyze the association of productivity, satisfaction, quality, competitiveness or customer care indicators, as a result of the use of HIWP. As a main conclusion we can show that the adoption of HIWP, in general, contribute with positive results to the organizations.

  11. Semantic Vector Machines

    CERN Document Server

    Vincent, Etter

    2011-01-01

    We first present our work in machine translation, during which we used aligned sentences to train a neural network to embed n-grams of different languages into an $d$-dimensional space, such that n-grams that are the translation of each other are close with respect to some metric. Good n-grams to n-grams translation results were achieved, but full sentences translation is still problematic. We realized that learning semantics of sentences and documents was the key for solving a lot of natural language processing problems, and thus moved to the second part of our work: sentence compression. We introduce a flexible neural network architecture for learning embeddings of words and sentences that extract their semantics, propose an efficient implementation in the Torch framework and present embedding results comparable to the ones obtained with classical neural language models, while being more powerful.

  12. Experimental Investigation of Machining Parameters in Drilling Operation Using Conventional and CNC Machines on Titanium Alloy

    Directory of Open Access Journals (Sweden)

    B.Suresh kumar

    2014-05-01

    Full Text Available Titanium alloy is one of the newer materials in manufacturing industries due to its high strength to weight ratio and corrosion resistance properties. Making a hole on this component is very difficult task due to its poor machinability. Hence, the machining parameter investigation on titanium alloy material is very important for predicting the drilling performance characteristics. In addition, the modern manufacturing industries are used the conventional drilling machine and CNC drilling machines for making a hole. In the sense, the main aim of this work is to investigate the machining parameters on vibration, thrust force, torque, machining time, burr dimension, tool wear and surface roughness occurrences when drilling titanium alloy with conventional and CNC machines. The effects of spindle speed and feed rate on these responses were reported.

  13. Diamond Measuring Machine

    Energy Technology Data Exchange (ETDEWEB)

    Krstulic, J.F.

    2000-01-27

    The fundamental goal of this project was to develop additional capabilities to the diamond measuring prototype, work out technical difficulties associated with the original device, and perform automated measurements which are accurate and repeatable. For this project, FM and T was responsible for the overall system design, edge extraction, and defect extraction and identification. AccuGem provided a lab and computer equipment in Lawrence, 3D modeling, industry expertise, and sets of diamonds for testing. The system executive software which controls stone positioning, lighting, focusing, report generation, and data acquisition was written in Microsoft Visual Basic 6, while data analysis and modeling were compiled in C/C++ DLLs. All scanning parameters and extracted data are stored in a central database and available for automated analysis and reporting. The Phase 1 study showed that data can be extracted and measured from diamond scans, but most of the information had to be manually extracted. In this Phase 2 project, all data required for geometric modeling and defect identification were automatically extracted and passed to a 3D modeling module for analysis. Algorithms were developed which automatically adjusted both light levels and stone focus positioning for each diamond-under-test. After a diamond is analyzed and measurements are completed, a report is printed for the customer which shows carat weight, summarizes stone geometry information, lists defects and their size, displays a picture of the diamond, and shows a plot of defects on a top view drawing of the stone. Initial emphasis of defect extraction was on identification of feathers, pinpoints, and crystals. Defects were plotted color-coded by industry standards for inclusions (red), blemishes (green), and unknown defects (blue). Diamonds with a wide variety of cut quality, size, and number of defects were tested in the machine. Edge extraction, defect extraction, and modeling code were tested for

  14. 缝纫女工颈肩部肌肉的表面肌电研究%A field study on the work load and muscle fatigue at neck-shoulder in female sewing machine operators by using surface electromyography

    Institute of Scientific and Technical Information of China (English)

    张非若; 王生; 何丽华; 张颖; 武珊珊; 李静芸; 胡广义; 叶康平

    2011-01-01

    Objective To study neck and shoulder work-related muscle fatigue of female sewing machine operators. Methods 18 health female sewing machine operators without musculoskeletal disorders work in Beijing garment industry factory as volunteers in participate of this study. The maximal voluntary contraction (MVC) and 20% MVC of bilateral upper trapezium and cervical erectors spinae was tested before sewing operations, then the whole 20 time windows (ltime window=10 min) sewing machine operations was monitored and the surface electromyography( sEMG ) signals simultaneously was recorded after monitoring the 20%MVC was tested. Use amplitude analysis method to reduction recorded EMG signals. Results During work,the median load for the left cervical erector spinae (LCES), right cervical erector spinae (RCES), left upper trapezium(LUT) and right upper trapezium(RUT) respectively was 6.78±1.05, 6.94±1.12, 5.68±2.56 and 6.47±3.22, work load of right is higher than the left; static load analysis indicated the value of RMS20%MVC before work was higher than that value after work, the increase of right CES and UT RMS20%MVC was more; the largest 20%MVE of bilateral CES occurred at 20th time window, and that of bilateral UT happened at 16th. Conclusions The work load of female sewing machine operators is sustained "static" load, and work load of right neck-shoulder is higher than left, right neck-shoulder muscle is more fatigable and much serious once fatigued.%目的 研究缝纫女工颈肩部工作负荷和肌肉疲劳情况.方法 使用表面肌电图技术现场测量并记录18名健康的无肌肉骨骼疾患的缝纫机操作女工日常工作期间200 min(每时段10 min,20个时段)双侧颈竖脊肌(CES)和斜方肌上支(UT)的肌电信号.现场测定之前,分别测定被测试者双侧CES和UT的最大随意自主收缩和20%最大随意自主收缩(the maximal voluntary contraction,MVC)时的肌电信号;被测试者工作结束后测量其双侧CES和UT的20

  15. The Mechanism of Company Accounts Receivable Management

    Directory of Open Access Journals (Sweden)

    Halyna Yamnenko

    2017-02-01

    Full Text Available The relevance of the accounts receivable management is caused by its ability to influence on the filling of the company working capital. Therefore it is necessary to create a specific mechanism for management of accounts receivable in the company. The article analyses the components of the mechanism and the influence of factors that significantly affect the operation. The result of the functioning of the accounts receivable management is to receive funds and to minimize accounts receivable.

  16. Towards green lubrication in machining

    CERN Document Server

    Liew Yun Hsien, Willey

    2014-01-01

    The book gives an overview of environmental friendly gaseous and vapour, refrigerated compressed gas, solid lubricant, mist lubrication, minimum quantity lubrication (MQL) and vegetable oils that can be used as lubricants and additives in industrial machining applications. This book introduces vegetable oils as viable and good alternative resources because of their environmental friendly, non-toxic and readily biodegradable nature.  The effectiveness of various types of vegetables oils as lubricants and additives in reducing wear and friction is discussed in this book. Engineers and scientist working in the field of lubrication and machining will find this book useful.

  17. Improving Energy Efficiency in CNC Machining

    Science.gov (United States)

    Pavanaskar, Sushrut S.

    We present our work on analyzing and improving the energy efficiency of multi-axis CNC milling process. Due to the differences in energy consumption behavior, we treat 3- and 5-axis CNC machines separately in our work. For 3-axis CNC machines, we first propose an energy model that estimates the energy requirement for machining a component on a specified 3-axis CNC milling machine. Our model makes machine-specific predictions of energy requirements while also considering the geometric aspects of the machining toolpath. Our model - and the associated software tool - facilitate direct comparison of various alternative toolpath strategies based on their energy-consumption performance. Further, we identify key factors in toolpath planning that affect energy consumption in CNC machining. We then use this knowledge to propose and demonstrate a novel toolpath planning strategy that may be used to generate new toolpaths that are inherently energy-efficient, inspired by research on digital micrography -- a form of computational art. For 5-axis CNC machines, the process planning problem consists of several sub-problems that researchers have traditionally solved separately to obtain an approximate solution. After illustrating the need to solve all sub-problems simultaneously for a truly optimal solution, we propose a unified formulation based on configuration space theory. We apply our formulation to solve a problem variant that retains key characteristics of the full problem but has lower dimensionality, allowing visualization in 2D. Given the complexity of the full 5-axis toolpath planning problem, our unified formulation represents an important step towards obtaining a truly optimal solution. With this work on the two types of CNC machines, we demonstrate that without changing the current infrastructure or business practices, machine-specific, geometry-based, customized toolpath planning can save energy in CNC machining.

  18. Machine tool structures

    CERN Document Server

    Koenigsberger, F

    1970-01-01

    Machine Tool Structures, Volume 1 deals with fundamental theories and calculation methods for machine tool structures. Experimental investigations into stiffness are discussed, along with the application of the results to the design of machine tool structures. Topics covered range from static and dynamic stiffness to chatter in metal cutting, stability in machine tools, and deformations of machine tool structures. This volume is divided into three sections and opens with a discussion on stiffness specifications and the effect of stiffness on the behavior of the machine under forced vibration c

  19. SICHUAN GEOPHYSICAL COMPANY

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    Sichuan Geophysical Company (abbreviated as SCGC below), originally named Sichuan Geophysical Company of CNPC Sichuan Petroleum, was founded in 1956 and is a subsidiary of CNPC Chuanqing Drilling Engineering Company Limited. With more than 50 years' development, SCGC now owns almost 3800 employees and has become a big oil & gas seismic exploration engineering service enterprise with the characteristic mountain seismic exploration techniques, and its annual business turnover reaches nearly 2 billion RMB. It can provide the integrated seismic exploration engineering service including seismic data acquisition, processing, interpretation, and geological comprehensive evaluation in various complex regions for clients at home and abroad.

  20. Valuation of Companies

    Directory of Open Access Journals (Sweden)

    J. Lisník

    2007-01-01

    Full Text Available This paper deals with valuating telecommunications companies. Six groups operating mainly in the European countries are compared. The comparison is based on financial and techno-economic indicators.These indicators are used to value the company by the DCF method. However, many companies have only a very short history. To value these, classical methods like DCF or real options are not suitable. In this case, methods based on market confrontation seem to be efficient. A further exploration of these methods is also the topic of my graduate studies 

  1. European works councils

    DEFF Research Database (Denmark)

    Knudsen, Herman Lyhne

    2003-01-01

    The theme adressed by this paper is the opportunities for European Works Councils (EWCs) of gaining influence on corporate decisions in multinational companies.......The theme adressed by this paper is the opportunities for European Works Councils (EWCs) of gaining influence on corporate decisions in multinational companies....

  2. European works councils

    DEFF Research Database (Denmark)

    Knudsen, Herman Lyhne

    2004-01-01

    The theme addressed by this artcle is the opportunities for European Works Councils of gaining influence on corporate decisions in multinational companies.......The theme addressed by this artcle is the opportunities for European Works Councils of gaining influence on corporate decisions in multinational companies....

  3. European works councils

    DEFF Research Database (Denmark)

    Knudsen, Herman Lyhne

    2003-01-01

    The theme adressed by this paper is the opportunities for European Works Councils (EWCs) of gaining influence on corporate decisions in multinational companies.......The theme adressed by this paper is the opportunities for European Works Councils (EWCs) of gaining influence on corporate decisions in multinational companies....

  4. European works councils

    DEFF Research Database (Denmark)

    Knudsen, Herman Lyhne

    2004-01-01

    The theme addressed by this artcle is the opportunities for European Works Councils of gaining influence on corporate decisions in multinational companies.......The theme addressed by this artcle is the opportunities for European Works Councils of gaining influence on corporate decisions in multinational companies....

  5. 78 FR 11638 - Michigan Consolidated Gas Company, DTE Gas Company, DTE Gas Company; Notice of Petition

    Science.gov (United States)

    2013-02-19

    ... Energy Regulatory Commission Michigan Consolidated Gas Company, DTE Gas Company, DTE Gas Company; Notice... Docket Nos. PR13-29-000, and PR13-30-000 (not consolidated), Michigan Consolidated Gas Company (MichCon) and DTE Gas Company (DTE Gas) filed to institute a name change to both itself from MichCon to DTE...

  6. 75 FR 13524 - Northern Natural Gas Company, Southern Natural Gas Company, Florida Gas Transmission Company, LLC...

    Science.gov (United States)

    2010-03-22

    ... Energy Regulatory Commission Northern Natural Gas Company, Southern Natural Gas Company, Florida Gas... of Application March 16, 2010. Take notice that on March 5, 2010, Northern Natural Gas Company... other owners, Southern Natural Gas Company, Florida Gas Transmission Company, LLC, Transcontinental...

  7. Build your own time machine

    CERN Document Server

    Clegg, Brian

    2012-01-01

    There is no physical law to prevent time travel nothing in physics to say it is impossible. So who is to say it can't be done? In Build Your Own Time Machine, acclaimed science writer Brian Clegg takes inspiration from his childhood heroes, Doctor Who and H. G. Wells, to explain the nature of time. How do we understand it and why measure it the way we do? How did the theories of one man change the way time was perceived by the world? Why wouldn't H. G. Wells's time machine have worked? And what would we need to do to make a real one? Build Your Own Time Machine explores the amazing possib

  8. Single Bacteria as Turing Machines

    Science.gov (United States)

    Bos, Julia; Zang, Qiucen; Vyawahare, Saurabh; Austin, Robert

    2014-03-01

    In Allan Turing's famous 1950 paper on Computing Machinery and Intelligence, he started with the provocative statement: ``I propose to consider the question, `Can machines think?' This should begin with definitions of the meaning of the terms `machine' and `think'.'' In our own work on exploring the way that organisms respond to stress and evolve, it seems at times as if they come to remarkably fast solutions to problems, indicating some sort of very clever computational machinery. I'll discuss how it would appear that bacteria can indeed create a form of a Turing Machine, the first example of a computer, and how they might use this algorithm to do rapid evolution to solve a genomics problem.

  9. Aerosols generated during beryllium machining.

    Science.gov (United States)

    Martyny, J W; Hoover, M D; Mroz, M M; Ellis, K; Maier, L A; Sheff, K L; Newman, L S

    2000-01-01

    Some beryllium processes, especially machining, are associated with an increased risk of beryllium sensitization and disease. Little is known about exposure characteristics contributing to risk, such as particle size. This study examined the characteristics of beryllium machining exposures under actual working conditions. Stationary samples, using eight-stage Lovelace Multijet Cascade Impactors, were taken at the process point of operation and at the closest point that the worker would routinely approach. Paired samples were collected at the operator's breathing zone by using a Marple Personal Cascade Impactor and a 35-mm closed-faced cassette. More than 50% of the beryllium machining particles in the breathing zone were less than 10 microns in aerodynamic diameter. This small particle size may result in beryllium deposition into the deepest portion of the lung and may explain elevated rates of sensitization among beryllium machinists.

  10. Knowledge work and work-related stress

    OpenAIRE

    Ipsen, Christine

    2006-01-01

    Work-related stress is an increasing problem in Europe. Earlier studies have stated that knowledge-work comprises working conditions which reflect a good psychosocial environment. Recent Danish studies, however, point at stress being an increasing problem in knowledge-intensive companies. These companies employ highly educated and com-petent people who apply their personal knowledge to generate new knowledge in close relationship with both custom-ers and colleagues. The employees are self-man...

  11. Teleoperators: Man's Machine Partners

    Energy Technology Data Exchange (ETDEWEB)

    Corliss, William R.

    1972-01-01

    This booklet is about teleoperators, a class of machines that augment man rather than replace him. Teleoperators have the ability to add to man's strength, his reach, and his ability to work in hostile environments.

  12. FSW of Aluminum Tailor Welded Blanks across Machine Platforms

    Energy Technology Data Exchange (ETDEWEB)

    Hovanski, Yuri; Upadhyay, Piyush; Carlson, Blair; Szymanski, Robert; Luzanski, Tom; Marshall, Dustin

    2015-02-16

    Development and characterization of friction stir welded aluminum tailor welded blanks was successfully carried out on three separate machine platforms. Each was a commercially available, gantry style, multi-axis machine designed specifically for friction stir welding. Weld parameters were developed to support high volume production of dissimilar thickness aluminum tailor welded blanks at speeds of 3 m/min and greater. Parameters originally developed on an ultra-high stiffness servo driven machine where first transferred to a high stiffness servo-hydraulic friction stir welding machine, and subsequently transferred to a purpose built machine designed to accommodate thin sheet aluminum welding. The inherent beam stiffness, bearing compliance, and control system for each machine were distinctly unique, which posed specific challenges in transferring welding parameters across machine platforms. This work documents the challenges imposed by successfully transferring weld parameters from machine to machine, produced from different manufacturers and with unique control systems and interfaces.

  13. Trends in Wire Electrical Discharge Machining (WEDM: A Review

    Directory of Open Access Journals (Sweden)

    Ms. Sharanya S. Nair

    2014-12-01

    Full Text Available The exponential growth of manufacturing industries and production and the increased need of accuracy and precision throws the spotlight on the nontraditional machining processes. The machining of metals and nonmetals having special properties like high strength, high hardness and toughness is done by non- conventional machining methods. Wire electrical discharge machining is one of the earliest non-traditional machining processes. This machining process competes with conventional machining such as milling, broaching, grinding etc. However, its ability to cut extremely intricate and delicate shapes with utmost accuracy makes this process most suitable among all other processes. The otherwise hard to be machined materials like carbides, tungsten, zirconium etc. can be easily machined using this process. This paper reviews notable work done in the field of WEDM by various researchers.

  14. [Greatness and tribulations of Zeiss and Leitz, two famous German optic companies III. Zeiss Ikon and elimination of Emanuel Goldberg].

    Science.gov (United States)

    Gilgenkrantz, Simone

    2011-05-01

    Gathering archival documents to trace the history of the Zeiss company presents no difficulty : they are abundant… except for a period from 1932 to 1945, systematically ignored, and that corresponds to the Nazi period. On the website Zeiss Historica, among the outstanding personalities of the Zeiss company, we note that, for Professor Emanuel Goldberg, the web page « is still under development but an early picture of the professor is available. ». But fortunately, Mickael Buckland, a Professor at the UC Berkeley School of Information brought the life and the work of Emanuel Goldberg to light. Thanks to him, his works and innovations, who had disappeared from our cultural and scientific heritage, return to light after being erased during fifty years. Goldberg had published dozens of articles, obtained patents, developed cameras, microdots, movie cameras, and he designed what he called a "Statistical Machine ", the first electronic document retrieval machine. In France, if this rediscovery was made known to the world of information science, it has not had the impact it deserved in the scientific world. Therefore it is time to reconstruct his career and his work, and to analyse the reasons why some attempted to erase definitively his name and memory.

  15. Interaction with Machine Improvisation

    Science.gov (United States)

    Assayag, Gerard; Bloch, George; Cont, Arshia; Dubnov, Shlomo

    We describe two multi-agent architectures for an improvisation oriented musician-machine interaction systems that learn in real time from human performers. The improvisation kernel is based on sequence modeling and statistical learning. We present two frameworks of interaction with this kernel. In the first, the stylistic interaction is guided by a human operator in front of an interactive computer environment. In the second framework, the stylistic interaction is delegated to machine intelligence and therefore, knowledge propagation and decision are taken care of by the computer alone. The first framework involves a hybrid architecture using two popular composition/performance environments, Max and OpenMusic, that are put to work and communicate together, each one handling the process at a different time/memory scale. The second framework shares the same representational schemes with the first but uses an Active Learning architecture based on collaborative, competitive and memory-based learning to handle stylistic interactions. Both systems are capable of processing real-time audio/video as well as MIDI. After discussing the general cognitive background of improvisation practices, the statistical modelling tools and the concurrent agent architecture are presented. Then, an Active Learning scheme is described and considered in terms of using different improvisation regimes for improvisation planning. Finally, we provide more details about the different system implementations and describe several performances with the system.

  16. Force, motion & simple machines big book

    CERN Document Server

    Graybill, George

    2007-01-01

    Our Combined resource includes all the required fundamentals for teaching Force, Motion & Simple Machines. Give your students a kick start on learning with our resource that has simplified language and vocabulary. We begin with a look at force, motion and work, with examples of simple machines in daily life. Discover what a force is, and different kinds of forces that work on contact and at a distance.

  17. Applied machining technology

    CERN Document Server

    Tschätsch, Heinz

    2010-01-01

    Machining and cutting technologies are still crucial for many manufacturing processes. This reference presents all important machining processes in a comprehensive and coherent way. It includes many examples of concrete calculations, problems and solutions.

  18. Machining with abrasives

    CERN Document Server

    Jackson, Mark J

    2011-01-01

    Abrasive machining is key to obtaining the desired geometry and surface quality in manufacturing. This book discusses the fundamentals and advances in the abrasive machining processes. It provides a complete overview of developing areas in the field.

  19. Women, Men, and Machines.

    Science.gov (United States)

    Form, William; McMillen, David Byron

    1983-01-01

    Data from the first national study of technological change show that proportionately more women than men operate machines, are more exposed to machines that have alienating effects, and suffer more from the negative effects of technological change. (Author/SSH)

  20. Machine medical ethics

    CERN Document Server

    Pontier, Matthijs

    2015-01-01

    The essays in this book, written by researchers from both humanities and sciences, describe various theoretical and experimental approaches to adding medical ethics to a machine in medical settings. Medical machines are in close proximity with human beings, and getting closer: with patients who are in vulnerable states of health, who have disabilities of various kinds, with the very young or very old, and with medical professionals. In such contexts, machines are undertaking important medical tasks that require emotional sensitivity, knowledge of medical codes, human dignity, and privacy. As machine technology advances, ethical concerns become more urgent: should medical machines be programmed to follow a code of medical ethics? What theory or theories should constrain medical machine conduct? What design features are required? Should machines share responsibility with humans for the ethical consequences of medical actions? How ought clinical relationships involving machines to be modeled? Is a capacity for e...

  1. Brain versus Machine Control.

    Directory of Open Access Journals (Sweden)

    Jose M Carmena

    2004-12-01

    Full Text Available Dr. Octopus, the villain of the movie "Spiderman 2", is a fusion of man and machine. Neuroscientist Jose Carmena examines the facts behind this fictional account of a brain- machine interface

  2. Languages for computer-controlled machines

    OpenAIRE

    MUCHKA, Martin

    2012-01-01

    The work deals with the options and describing the languages of computer-controlled machine tools. In the introductory part is the history and development of numerical control and the description of certain control systems with an emphasis on learning the concept with the possibility of use as a study of the text. The next section describes the school's CNC milling machine, both hardware and software, and example theses on the CNC machine in practice. In the context of the work of a well-orga...

  3. Article Details Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited. Analyzing Virtual Machine Live Migration in Application Data Context

    Directory of Open Access Journals (Sweden)

    Mutiullah Shaikh

    2016-05-01

    Full Text Available Virtualization plays a very vital role in the big cloud federation. Live and Real-time virtual machine migration is always a challenging task in virtualized environment, different approaches, techniques and models have already been presented and implemented by many re- searchers. The aim of this work is to investigate various parameters of Real-time and live data migration of virtual machines in stateful and data context at the application level. The migration of one virtual machine to another requires some time depending on the network bandwidth, guest availability, hardware limitation overcomes, resource allocation, server reallocation, hypervisor compatibility and many more. To enhance and ensure the performance and optimization of the time this work presents the some analysis in the form of different time stacks in multiple piece of data stored in the virtual machines. To optimize the migration time virtual machine checkpoints are used in order to achieve the better results by using the xen hypervisor memory technique which dynamically allows the migration of the configured memory while the allocated memory could be discarded for a while. By this the bad memory remains un-migrated only the good memory consisting the used data would be migrated by means of Real-time.

  4. Managing virtual machines with Vac and Vcycle

    Science.gov (United States)

    McNab, A.; Love, P.; MacMahon, E.

    2015-12-01

    We compare the Vac and Vcycle virtual machine lifecycle managers and our experiences in providing production job execution services for ATLAS, CMS, LHCb, and the GridPP VO at sites in the UK, France and at CERN. In both the Vac and Vcycle systems, the virtual machines are created outside of the experiment's job submission and pilot framework. In the case of Vac, a daemon runs on each physical host which manages a pool of virtual machines on that host, and a peer-to-peer UDP protocol is used to achieve the desired target shares between experiments across the site. In the case of Vcycle, a daemon manages a pool of virtual machines on an Infrastructure-as-a-Service cloud system such as OpenStack, and has within itself enough information to create the types of virtual machines to achieve the desired target shares. Both systems allow unused shares for one experiment to temporarily taken up by other experiements with work to be done. The virtual machine lifecycle is managed with a minimum of information, gathered from the virtual machine creation mechanism (such as libvirt or OpenStack) and using the proposed Machine/Job Features API from WLCG. We demonstrate that the same virtual machine designs can be used to run production jobs on Vac and Vcycle/OpenStack sites for ATLAS, CMS, LHCb, and GridPP, and that these technologies allow sites to be operated in a reliable and robust way.

  5. LASER CUTTING MACHINES FOR 3-D THIN SHEET PARTS

    Directory of Open Access Journals (Sweden)

    Miroslav RADOVANOVIC

    2012-11-01

    Full Text Available Laser cutting machines are used for precise contour cutting thin sheet. In industrial application nowadays various types and construction of laser cutting machines can be met. For contour cutting 3-D thin sheet parts laser cutting machines with rotation movements and laser robots are used. Laser generates the light beam, that presents a tool in working process. Application of laser cutting machines made possible good quality of products, flexibility of production and enlargement of economy

  6. A Universal Reactive Machine

    DEFF Research Database (Denmark)

    Andersen, Henrik Reif; Mørk, Simon; Sørensen, Morten U.

    1997-01-01

    Turing showed the existence of a model universal for the set of Turing machines in the sense that given an encoding of any Turing machine asinput the universal Turing machine simulates it. We introduce the concept of universality for reactive systems and construct a CCS processuniversal...

  7. Enterprise Architecture in the Company Management Framework

    Directory of Open Access Journals (Sweden)

    Bojinov Bojidar Violinov

    2016-11-01

    Full Text Available The study aims to explore the role and importance of the concept of enterprise architecture in modern company management. For this purpose it clarifies the nature, scope, components of the enterprise architecture and relationships within it using the Zachman model. Based on the critical analysis of works by leading scientists, there presented a definition of enterprise architecture as a general description of all elements of strategic management of the company combined with description of its organizational, functional and operational structure, including the relationship between all tangible and intangible resources essential for its normal functioning and development. This in turn enables IT enterprise architecture to be defined as a set of corporate IT resources (hardware, software and technology, their interconnection and integration within the overall architecture of the company, as well as their formal description, methods and tools for their modeling and management in order to achieve strategic business goals of the organization. In conclusion the article summarizes the significance and role of enterprise architecture for strategic management of the company in today’s digital economy. The study underlines the importance of an integrated multidisciplinary approach to the work of a contemporary company, and the need for adequate matching and alignment of IT with business priorities and objectives of the company.

  8. TOTAL REWARDS MODEL IN ROMANIAN COMPANIES

    Directory of Open Access Journals (Sweden)

    Elena-Sabina HODOR

    2014-04-01

    Full Text Available Total Rewards Management is a subject of major importance for companies, because, by using models for this, firms can achieve their objectives of high performance. In order to analyse a validated total rewards model in Romanian Accounting and Consulting Companies, it is used The WorldatWork Total Rewards Model, which depict what contributes to applicant attraction and employee motivation and retention. Thus, the methodology of the previous survey is adjusted to the local context. The conclusions for the methodological aspects illustrate that the present research involves three strategic steps in order to achieve the objectives presented: the analysis of organizational environment of the companies from the sample, checking if Total Rewards Model proposed in the previous research is applicable for the same romanian companies from the previous survey, the analysing of the differences between results, and, if necessary, the adaptation of the model for Romania.

  9. TOTAL REWARDS MODEL IN ROMANIAN COMPANIES

    Directory of Open Access Journals (Sweden)

    Elena-Sabina HODOR

    2014-04-01

    Full Text Available Total Rewards Management is a subject of major importance for companies, because, by using models for this, firms can achieve their objectives of high performance. In order to analyse a validated total rewards model in Romanian Accounting and Consulting Companies, it is used The WorldatWork Total Rewards Model, which depict what contributes to applicant attraction and employee motivation and retention. Thus, the methodology of the previous survey is adjusted to the local context. The conclusions for the methodological aspects illustrate that the present research involves three strategic steps in order to achieve the objectives presented: the analysis of organizational environment of the companies from the sample, checking if Total Rewards Model proposed in the previous research is applicable for the same romanian companies from the previous survey, the analysing of the differences between results, and, if necessary, the adaptation of the model for Romania.

  10. Mechanics of Wood Machining

    CERN Document Server

    Csanády, Etele

    2013-01-01

    Wood is one of the most valuable materials for mankind, and since our earliest days wood materials have been widely used. Today we have modern woodworking machine and tools; however, the raw wood materials available are continuously declining. Therefore we are forced to use this precious material more economically, reducing waste wherever possible. This new textbook on the “Mechanics of Wood Machining” combines the quantitative, mathematical analysis of the mechanisms of wood processing with practical recommendations and solutions. Bringing together materials from many sources, the book contains new theoretical and experimental approaches and offers a clear and systematic overview of the theory of wood cutting, thermal loading in wood-cutting tools, dynamic behaviour of tool and work piece, optimum choice of operational parameters and energy consumption, the wear process of the tools, and the general regularities of wood surface roughness. Diagrams are provided for the quick estimation of various process ...

  11. Developing Virtual CD-ROM Collections: The Voyager Company Publications

    Directory of Open Access Journals (Sweden)

    Geoffrey Brown

    2012-12-01

    Full Text Available Over the past 20 years, many thousands of CD-ROM titles were published; many of these have lasting cultural significance, yet present a difficult challenge for libraries due to obsolescence of the supporting software and hardware, and the consequent decline in the technical knowledge required to support them. The current trend appears to be one of abandonment – for example, the Indiana University Libraries no longer maintain machines capable of accessing early CD-ROM titles.In previous work, we proposed an access model based upon networked ‘virtual collections’ of CD-ROMs which can enable consortia of libraries to pool the technical expertise necessary to provide continued access to such materials for a geographically sparse base of patrons, who may have limited technical knowledge.In this paper, we extend this idea to CD-ROMs designed to operate on ‘classic’ Macintosh systems with an extensive case study – the catalog of the Voyager Company publications, which was the first major innovator in interactive CD-ROMs. The work described includes emulator extensions to support obsolete CD formats and to enable networked access to the virtual collection.

  12. Automating Construction of Machine Learning Models With Clinical Big Data: Proposal Rationale and Methods

    Science.gov (United States)

    Stone, Bryan L; Johnson, Michael D; Tarczy-Hornoch, Peter; Wilcox, Adam B; Mooney, Sean D; Sheng, Xiaoming; Haug, Peter J; Nkoy, Flory L

    2017-01-01

    Background To improve health outcomes and cut health care costs, we often need to conduct prediction/classification using large clinical datasets (aka, clinical big data), for example, to identify high-risk patients for preventive interventions. Machine learning has been proposed as a key technology for doing this. Machine learning has won most data science competitions and could support many clinical activities, yet only 15% of hospitals use it for even limited purposes. Despite familiarity with data, health care researchers often lack machine learning expertise to directly use clinical big data, creating a hurdle in realizing value from their data. Health care researchers can work with data scientists with deep machine learning knowledge, but it takes time and effort for both parties to communicate effectively. Facing a shortage in the United States of data scientists and hiring competition from companies with deep pockets, health care systems have difficulty recruiting data scientists. Building and generalizing a machine learning model often requires hundreds to thousands of manual iterations by data scientists to select the following: (1) hyper-parameter values and complex algorithms that greatly affect model accuracy and (2) operators and periods for temporally aggregating clinical attributes (eg, whether a patient’s weight kept rising in the past year). This process becomes infeasible with limited budgets. Objective This study’s goal is to enable health care researchers to directly use clinical big data, make machine learning feasible with limited budgets and data scientist resources, and realize value from data. Methods This study will allow us to achieve the following: (1) finish developing the new software, Automated Machine Learning (Auto-ML), to automate model selection for machine learning with clinical big data and validate Auto-ML on seven benchmark modeling problems of clinical importance; (2) apply Auto-ML and novel methodology to two new

  13. Automating Construction of Machine Learning Models With Clinical Big Data: Proposal Rationale and Methods.

    Science.gov (United States)

    Luo, Gang; Stone, Bryan L; Johnson, Michael D; Tarczy-Hornoch, Peter; Wilcox, Adam B; Mooney, Sean D; Sheng, Xiaoming; Haug, Peter J; Nkoy, Flory L

    2017-08-29

    To improve health outcomes and cut health care costs, we often need to conduct prediction/classification using large clinical datasets (aka, clinical big data), for example, to identify high-risk patients for preventive interventions. Machine learning has been proposed as a key technology for doing this. Machine learning has won most data science competitions and could support many clinical activities, yet only 15% of hospitals use it for even limited purposes. Despite familiarity with data, health care researchers often lack machine learning expertise to directly use clinical big data, creating a hurdle in realizing value from their data. Health care researchers can work with data scientists with deep machine learning knowledge, but it takes time and effort for both parties to communicate effectively. Facing a shortage in the United States of data scientists and hiring competition from companies with deep pockets, health care systems have difficulty recruiting data scientists. Building and generalizing a machine learning model often requires hundreds to thousands of manual iterations by data scientists to select the following: (1) hyper-parameter values and complex algorithms that greatly affect model accuracy and (2) operators and periods for temporally aggregating clinical attributes (eg, whether a patient's weight kept rising in the past year). This process becomes infeasible with limited budgets. This study's goal is to enable health care researchers to directly use clinical big data, make machine learning feasible with limited budgets and data scientist resources, and realize value from data. This study will allow us to achieve the following: (1) finish developing the new software, Automated Machine Learning (Auto-ML), to automate model selection for machine learning with clinical big data and validate Auto-ML on seven benchmark modeling problems of clinical importance; (2) apply Auto-ML and novel methodology to two new modeling problems crucial for care

  14. Asynchronized synchronous machines

    CERN Document Server

    Botvinnik, M M

    1964-01-01

    Asynchronized Synchronous Machines focuses on the theoretical research on asynchronized synchronous (AS) machines, which are "hybrids” of synchronous and induction machines that can operate with slip. Topics covered in this book include the initial equations; vector diagram of an AS machine; regulation in cases of deviation from the law of full compensation; parameters of the excitation system; and schematic diagram of an excitation regulator. The possible applications of AS machines and its calculations in certain cases are also discussed. This publication is beneficial for students and indiv

  15. Precision machine design

    CERN Document Server

    Slocum, Alexander H

    1992-01-01

    This book is a comprehensive engineering exploration of all the aspects of precision machine design - both component and system design considerations for precision machines. It addresses both theoretical analysis and practical implementation providing many real-world design case studies as well as numerous examples of existing components and their characteristics. Fast becoming a classic, this book includes examples of analysis techniques, along with the philosophy of the solution method. It explores the physics of errors in machines and how such knowledge can be used to build an error budget for a machine, how error budgets can be used to design more accurate machines.

  16. The Emerging Web of Social Machines

    CERN Document Server

    Meira, Silvio R L; Nascimento, Leandro M; de Figueiredo, Elaine G M; Neto, Misael; Encarnação, Bruno P; Garcia, Vinícius

    2010-01-01

    We define a notion of social machine and envisage an algebra that can describe networks of such. To start with, social machines are defined as tuples of input, output, processes, constraints, state, requests and responses; apart from defining the machines themselves, the algebra defines a set of connectors and conditionals that can be used to describe the interactions between any number of machines in a multitude of ways, as a means to represent real machines interacting in the real web, such as Twitter, Twitter running on top of Amazon AWS, mashups built using Twitter and, obviously, other social machines. This work is not a theoretical paper as yet; but, in more than one sense, we think we have found a way to describe web based information systems and are starting to work on what could be a practical way of dealing with the complexity of this emerging web of social machines that is all around us. This version should be read as work in progress and comments, observations, bugs... are most welcome and should ...

  17. Laser-assisted machining of difficult-to-machine materials

    Energy Technology Data Exchange (ETDEWEB)

    Incropera, F.P.; Rozzi, J.C.; Pfefferkorn, F.E.; Lei, S.; Shin, Y.C.

    1999-07-01

    Laser-assisted machining (LAM) is a hybrid process for which a difficult-to-machine material, such as a ceramic or super alloy, is irradiated by a laser source prior to material removal by a cutting tool. The process has the potential to significantly increase material removal rates, as well as to improve the geometry and properties of the finished work piece. Features and limitations of theoretical and experimental procedures for determining the transient thermal response of a work piece during LAM are described, and representative results are presented for laser-assisted turning of sintered silicon nitride. Significant physical trends are revealed by the calculations, as are guidelines for the selection of appropriate operating conditions.

  18. The lean service machine.

    Science.gov (United States)

    Swank, Cynthia Karen

    2003-10-01

    Jefferson Pilot Financial, a life insurance and annuities firm, like many U.S. service companies at the end of the 1990s was looking for new ways to grow. Its top managers recognized that JPF needed to differentiate itself in the eyes of its customers, the independent life-insurance advisers who sell and service policies. To establish itself as these advisers' preferred partner, it set out to reduce the turnaround time on policy applications, simplify the submission process, and reduce errors. JPF's managers looked to the "lean production" practices that U.S. manufacturers adopted in response to competition from Japanese companies. Lean production is built around the concept of continuous-flow processing--a departure from traditional production systems, in which large batches are processed at each step. JPF appointed a "lean team" to reengineer its New Business unit's operations, beginning with the creation of a "model cell"--a fully functioning microcosm of JPF's entire process. This approach allowed managers to experiment and smooth out the kinks while working toward an optimal design. The team applied lean-manufacturing practices, including placing linked processes near one another, balancing employees' workloads, posting performance results, and measuring performance and productivity from the customer's perspective. Customer-focused metrics helped erode the employees' "My work is all that matters" mind-set. The results were so impressive that JPF is rolling out similar systems across many of its operations. To convince employees of the value of lean production, the lean team introduced a simulation in which teams compete to build the best paper airplane based on invented customer specifications. This game drives home lean production's basic principles, establishing a foundation for deep and far-reaching changes in the production system.

  19. Oil Companies Climb Global List

    Institute of Scientific and Technical Information of China (English)

    JESSY ZHANG

    2006-01-01

    @@ Backed by the huge market size,China's energy companies have been ranked in the group of the world's largest industry players. On September 6th,eight companies from the Chinese mainland and six companies from Hong Kong SAR were included in this year's Platts Top 250 Energy Companies List.

  20. [Psychic experience of pathological machine gamblers].

    Science.gov (United States)

    Avtonomov, D A

    2011-01-01

    The author presents results of the psychopathological phenomena and subjective experience study of 38 patients with the verified diagnosis "Pathological addiction to gambling" (F63.0) without psychotic disorders. In 84,2% cases, the patients preferred slot machine gambling. The causes of such preferences were analyzed. The phenomenology of the psychic experience of the patients who are slot machine gamblers is presented. With the formation of the addiction, the gamblers began to think about slot machines as human beings (creatures), feel attachment to them, see the individuality in them, and experience slot machines as live and real partners in imaginative or even verbal dialogs. Two main "forms of contact" with slot machines were elicited and described: verbal and non-verbal. The gambler has been gradually depleted the image of himself and experiences the "loss of contact" with his own features, qualities, wishes, and intentions. The data obtained may be helpful in psychotherapeutic and rehabilitative work with such patients.

  1. EVALUATION OF THE MACHINE MODERNITY IN THE MOTOR INDUSTRY

    Directory of Open Access Journals (Sweden)

    Manuela Krystyna Ingaldi

    2014-12-01

    Full Text Available Most manufacturing companies realize its technologies, implemented through concrete machinery parts. They differ in terms of importance, the relevance of their selection and the level of their modernity. The purpose of this article is to analyse the chosen production machine in terms of its modernity. The ABC technology method was chosen do this research. All parts of the machine were divided into three groups: parts of main subassembly A, parts of supportive subassembly B, parts of collateral subassembly C. Then each of these parts was evaluated in the Parker's five-point scale. From the conducted analysis it results that most parts of the research machine were manufactured with more complex technologies, requiring technical skills and knowledge or with unchanging technologies used for years. It means that the research machine is not a modern machine. Perhaps company managers should take a decision on the change of the machine for the newer one. This would allow for improvement of the technical parameters of the products, increase in production efficiency and reduction of the amount of nonconforming products. Therefore, it can be concluded that a properly selected and correctly applied parts of the subassemblies contribute to the improvement in quality of products and the efficiency of the machine.

  2. Captive insurance companies.

    Science.gov (United States)

    Strauss, Peter

    2014-01-01

    The landscape of the business world is changing; and now, more than ever, business owners are recognizing that life is filled with risks: known risk, calculated risk, and unexpected risk. Every day, businesses thrive or fail based on understanding the risk of owning and operating their business, and business owners are recognizing that there are alternative risk financing mechanisms other than simply taking out a basket of standard coverage as recommended by your friendly neighborhood agent. A captive insurance company is an insurance company established to provide a broad range of risk management capabilities to affiliated companies. The captive is owned by the business owner and can provide insurance to the business for potential future losses, whether or not the losses are already covered by a commercial carrier or are "self-insured." The premiums paid by your business are tax deductible. Meanwhile, the premiums that your captive collects are tax-free up to $1.2 million annually.

  3. Companies as "Cyborgs"?

    DEFF Research Database (Denmark)

    Thompson, Grahame

    This paper investigates the legal and commercial consequences of companies being considered as both an entity and a person in law – hence the notion of ‘cyborg’ in its title. It concentrates upon legal personhood and relates this particular feature to the issue of corporate citizenship. In turn...... corporate citizenship provides a link to considering the political role of companies, since in claiming citizenship they are implicitly at least claiming a particular set of political rights consequent upon that status, and announcing a particular politically constrained context associated...... with their operational characteristics. But what would be involved in granting companies full citizenship rights in the image of natural person citizenship? The paper explores this issue in connection to the differences between corporate social responsibility and an earlier idea of the socially responsible corporation...

  4. The Potential Application of Gasification for Biomass Power Generation in Isolated Area from National Electricity Company in Indonesia

    Directory of Open Access Journals (Sweden)

    Kiman Siregar

    2016-01-01

    Full Text Available Indonesia has renewable energy source very large, as biomass. Installed capacity power plants of Indonesia now 53,585 MW, where the potential energy biomass is the largest of renewable sources of energy that owned by Indonesia. The machine of gasification is designed to produce combustible gas (CO, H2, CH4. These combustible gas are produced to replace fossil fuel as engine fuel to generate electricity. However, the properties and characteristics of these combustible gas should meet the characteristic of the engine as every engine has its own specific characteristic. In this research, Biomass Power Generation (BPG which work more properly with CO was used. High level of tar contained in produced combustible gas contaminates the engine filter rapidly. Therefore, the machine cannot be operated at a longer time. The objective of this research was to study the potential application of downdraft gasification machine with high content of CO and low production of tar. Downdraft gasification machine which designed in this research had installed capacity as much as 50 kW with reactor diameter and height were 900 mm and 1000 mm, respectively. The testing result showed that power generated from this machine was 40 kW, efficiency 80 % and can be operated for 6 hours. The optimum combustible gas produced by this machine occurred at CO, H2 and CH4 content were 21.75 %, 13.12 % and 1.12 %, respectively. Besides of using active carbon, tar removal was carried out using dust trap system (wet scrubber. The potential reduction of value of greenhouse gases emission is about 37 until 67 %. Based on an analysis calculation of financial , a test performance of gasification, and analysis of environmental impact, the use of system gasification can be used on a system a power plant in the isolated area from national electricity company in Indonesia.

  5. Machine-to-machine communications architectures, technology, standards, and applications

    CERN Document Server

    Misic, Vojislav B

    2014-01-01

    With the number of machine-to-machine (M2M)-enabled devices projected to reach 20 to 50 billion by 2020, there is a critical need to understand the demands imposed by such systems. Machine-to-Machine Communications: Architectures, Technology, Standards, and Applications offers rigorous treatment of the many facets of M2M communication, including its integration with current technology.Presenting the work of a different group of international experts in each chapter, the book begins by supplying an overview of M2M technology. It considers proposed standards, cutting-edge applications, architectures, and traffic modeling and includes case studies that highlight the differences between traditional and M2M communications technology.Details a practical scheme for the forward error correction code designInvestigates the effectiveness of the IEEE 802.15.4 low data rate wireless personal area network standard for use in M2M communicationsIdentifies algorithms that will ensure functionality, performance, reliability, ...

  6. RESTRUCTURING COMPANIES UNDER CRISIS

    Directory of Open Access Journals (Sweden)

    Hezi Aviram SHAYB

    2016-12-01

    Full Text Available Nobody is planning to fail, but many companies are failing because of lack of planning. Real business experience showed during the years that crisis can be prevented, avoided or limited. If detected in time, the risks associated with the crisis can be mitigated and the effects can be diminished, with the condition that the actions required are done fast, in a sharp and accurate manner. When it comes, a crisis brings an intense level of pressure and under these conditions there is no time or room for mistakes. Delays, losing focus and lack of planning will bring a company one step away from failure. The right way to deal with crisis, if required measures are not done in time, is to minimize the losses and reposition in the best way possible. Analysing the success stories of some of the biggest and strongest companies in the world, led to an important conclusion: the majority of these companies were in the situation to face huge crises which threatened their ability to survive in certain moments, on their way to success. With the right planning and by setting a proper organisational structure, the negative aspects of the crisis can be turned into benefits and opportunities for the company. The most critical challenge for management is to assess the level of exposure to risk of the company and identify the key points to focus on in order to overcome the crisis and create value. In order to set up a strong plan in dealing with crisis, a business organisation needs reliable, efficient and effective tools and this is what this article is all about.

  7. RESTRUCTURING COMPANIES UNDER CRISIS

    Directory of Open Access Journals (Sweden)

    Hezi Aviram SHAYB

    2016-12-01

    Full Text Available Nobody is planning to fail, but many companies are failing because of lack of planning. Real business experience showed during the years that crisis can be prevented, avoided or limited. If detected in time, the risks associated with the crisis can be mitigated and the effects can be diminished, with the condition that the actions required are done fast, in a sharp and accurate manner. When it comes, a crisis brings an intense level of pressure and under these conditions there is no time or room for mistakes. Delays, losing focus and lack of planning will bring a company one step away from failure. The right way to deal with crisis, if required measures are not done in time, is to minimize the losses and reposition in the best way possible. Analysing the success stories of some of the biggest and strongest companies in the world, led to an important conclusion: the majority of these companies were in the situation to face huge crises which threatened their ability to survive in certain moments, on their way to success. With the right planning and by setting a proper organisational structure, the negative aspects of the crisis can be turned into benefits and opportunities for the company. The most critical challenge for management is to assess the level of exposure to risk of the company and identify the key points to focus on in order to overcome the crisis and create value. In order to set up a strong plan in dealing with crisis, a business organisation needs reliable, efficient and effective tools and this is what this article is all about.

  8. Temperature based Restricted Boltzmann Machines.

    Science.gov (United States)

    Li, Guoqi; Deng, Lei; Xu, Yi; Wen, Changyun; Wang, Wei; Pei, Jing; Shi, Luping

    2016-01-13

    Restricted Boltzmann machines (RBMs), which apply graphical models to learning probability distribution over a set of inputs, have attracted much attention recently since being proposed as building blocks of multi-layer learning systems called deep belief networks (DBNs). Note that temperature is a key factor of the Boltzmann distribution that RBMs originate from. However, none of existing schemes have considered the impact of temperature in the graphical model of DBNs. In this work, we propose temperature based restricted Boltzmann machines (TRBMs) which reveals that temperature is an essential parameter controlling the selectivity of the firing neurons in the hidden layers. We theoretically prove that the effect of temperature can be adjusted by setting the parameter of the sharpness of the logistic function in the proposed TRBMs. The performance of RBMs can be improved by adjusting the temperature parameter of TRBMs. This work provides a comprehensive insights into the deep belief networks and deep learning architectures from a physical point of view.

  9. Mechanical characterization of Cu-Zn wire electrode base used in EDM and study of influence of the process of machining on its properties

    Energy Technology Data Exchange (ETDEWEB)

    Sedjal, H., E-mail: hasedjal@yahoo.fr; Amirat, B. [Département of Mechanical engineering, University of M.MAMMERI, Tizi Ouzou (Algeria); Aichour, M.; Marouf, T.; Chitroub, M. [Engineering and Material Sciences Laboratory, Department of Metallurgy, Polytechnic national school, Algiers (Algeria)

    2015-03-30

    This work is part of a Research National project (PNR) carried out by the group of research of the engineering and material sciences laboratory of the polytechnic national school at Algiers in collaboration with company BCR, which relates to “the characterization of the wire intended for the EDM of matrices metal. The goal of this work is to bring metallographic explanations on the wire electrode used by the machine ROBOFIL 290P, mechanically characterized this wire as of knowing of advantage about the process of its manufacturing (wiredrawing, .) The methods of studies used are it micro Vickers pyramid hardness, the tensile test, optical microscopy and scan electronic microscopy SEM.

  10. PREVENTION OF COMPANY RISKS

    Directory of Open Access Journals (Sweden)

    SUCI U GHEORGHE

    2014-10-01

    Full Text Available A company’s manager has to create and maintain a healthy internal control system. An efficient internal control system implies the implementation in the company of risk management. Each company, but also each individual, who tries to attain certain objectives, establishes the activities which lead to the achievement of goals and, at the same time, tries to identify as many “threats” as possible, in order to take the necessary measures to eliminate them. Thus, even if one is not familiar with the concepts of risk and risk management, one acts, consciously or not, for that purpose.

  11. Competitor Analysis : Company X

    OpenAIRE

    Valkama, Suvi

    2014-01-01

    The purpose of the thesis was to create a competitor analysis of the market of stainless steel swimming pools for the commissioner Company X, a company that will be set up in the near future. The thesis aimed at finding out the commissioner’s assets in producing stainless steel swimming pools as well as defining its competitive advantage. This was done by identifying the relative strengths and weaknesses of the main competitors named by the commissioner. Moreover, the purpose of the thesis wa...

  12. COMPANY ACTIVITY FINANCIAL RISK

    Directory of Open Access Journals (Sweden)

    Caruntu Genu Alexandru

    2012-12-01

    Full Text Available In economic and financial activity, risk is an inherent financial decisions, encountered in daily agenda of managers of companies. Unexpected changes in the price of a product development not only affect the financial results of a company, but can cause even bankruptcy. In fact, the nature of financial decisions involve uncertainty. Financial decisions are made based on cash flows under future contracts, which are par excellence incerte.Activitatea an enterprise that holds any weight in the industry is subject to risks, since it can not predict with certainty different components of its outcome (cost, quantity, price and operating cycle (purchase, processing, sales.

  13. Dynamic thermal analysis of machines in running state

    CERN Document Server

    Wang, Lihui

    2014-01-01

    With the increasing complexity and dynamism in today’s machine design and development, more precise, robust and practical approaches and systems are needed to support machine design. Existing design methods treat the targeted machine as stationery. Analysis and simulation are mostly performed at the component level. Although there are some computer-aided engineering tools capable of motion analysis and vibration simulation etc., the machine itself is in the dry-run state. For effective machine design, understanding its thermal behaviours is crucial in achieving the desired performance in real situation. Dynamic Thermal Analysis of Machines in Running State presents a set of innovative solutions to dynamic thermal analysis of machines when they are put under actual working conditions. The objective is to better understand the thermal behaviours of a machine in real situation while at the design stage. The book has two major sections, with the first section presenting a broad-based review of the key areas of ...

  14. Bionic machines and systems

    Energy Technology Data Exchange (ETDEWEB)

    Halme, A.; Paanajaervi, J. (eds.)

    2004-07-01

    of bio-structures. Today's robotics research is directed towards solving the problems of the third generation intelligent robots. Most of them are not any more intended for working in production lines, as their second generation predecessors do, but for serving in different tasks related to natural environment or urban structures. Many of them are supposed to work in close cooperation with humans as a member of their community. One of the basic features needed is mobility, capability to go to the work, because works are not any more coming to the machine - as they do in factories - but the machines have to move. This, in turn, implies need for other primary functions, such as localization and navigation. Further, because the environment and details of the task are usually not known beforehand, the control system of the robot has to relay on perceptive information through sensors and senses in order to complete satisfactorily the task. Biological species have developed a large variety of solutions for all these primary functions. The variety in motion control methods provides also many interesting solutions, like walking, swimming and flying, which all are worth of mimicking in robotics. Learning is still in its infancy in intelligent robotics, especially regarding skilled tasks done with hands or tools. Biological research offers many interesting results on animal learning, which, while being a complex process in its own right, is still simpler than the corresponding human learning and thus easier to mimic. The report is based on the presentations given by the participants. The material has been collected from published references in literature and Web. Besides written material, also a video file archive has been collected and is available as an appendix to this report. The presentation order follows in a way bottom up hierarchy of subsystems in biological machines. Chapter 2 introduces the background of biological energy. Chapter 3 deals with motions, motion

  15. Machine vision theory, algorithms, practicalities

    CERN Document Server

    Davies, E R

    2005-01-01

    In the last 40 years, machine vision has evolved into a mature field embracing a wide range of applications including surveillance, automated inspection, robot assembly, vehicle guidance, traffic monitoring and control, signature verification, biometric measurement, and analysis of remotely sensed images. While researchers and industry specialists continue to document their work in this area, it has become increasingly difficult for professionals and graduate students to understand the essential theory and practicalities well enough to design their own algorithms and systems. This book directl

  16. Exit strategies of Pharmaceutical multinational companies from Portugal and the successful implementation of new Portuguese companies

    OpenAIRE

    Pinheiro, Catarina Quelhas dos Santos da Costa

    2014-01-01

    A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics In 2001 and 2004, two multinational companies (MNC) of the pharmaceutical industry, respectively Bayer and Janssen, left its manufacture operations in Portugal. From its exit, other two Portuguese small and medium enterprises (SME) were born: Bluepharma and Lusomedicamenta. These companies have been highly successful due to the representativ...

  17. Design of Waste Shredder Machine

    Directory of Open Access Journals (Sweden)

    Asst. Prof. S.Nithyananth

    2014-03-01

    Full Text Available The conventional agro-waste disposal is a traditional and oldest method of waste disposal in which agriculture wastes are dumped as it is to degrade in a particular place for decomposing. As the wastes are dumped as such, it takes more time to degrade and it causes environmental pollution. The waste shredder machine aims to reduce the agro waste and convert it into useful nourishing fertilizer. It decreases the man work making the farm neat and clean. Also it reduces the heap amount of pollution, disease causing agro-wastes and produces a better fertilizer with vermin compost. The waste shredder machine is an attachment as like a ploughing attachment. In the shredder attachment input power and rigid support is provided by a KAMCO Tera-trac 4W tractor by means of PTO (power take off shaft and three point linkage. PTO shaft of the tractor acts as a basic power input and the three point linkage provide a rigid support to the machine. Various kinds of blades are used for chipping and powdering operations like sawing blades, rotatory blades, and triangular shape blades. The blades are mounted on the shaft. The power is transmitted to another shaft by means of pulley and belt. For designing waste shredder machine, Creo parametric 1.0 software is used.

  18. Factores de riesgo para enfermedad cardiovascular en aspirantes a una empresa de obras civiles en Yopal - Casanare, 2010 Risk factors for cardiovascular disease in applicants to a civil works company in Yopal-Casanare, 2010

    Directory of Open Access Journals (Sweden)

    Mónica A Calderón

    2012-12-01

    Full Text Available Introducción: en Colombia, según estadísticas recientes, las enfermedades cardiovasculares representan la segunda causa de mortalidad. En tal sentido, para Casanare, en 2009, la mortalidad fue de 54,3%. Objetivo: determinar la prevalencia de factores de riesgo cardiovascular y establecer el riesgo coronario a diez años, en aspirantes a ingresar a una empresa de obras civiles atendidos por salud ocupacional/laboral en una Institución Prestadora de Servicios de Salud en Yopal-Casanare, durante 2010. Métodos: estudio descriptivo transversal a partir del total de historias clínicas de personal masculino con exámenes de laboratorio. Análisis con Epi-Info-3.3.2® y SPSS-15.0® mediante medidas de frecuencia-dispersión-tendencia central, asociación: Χ2, razón de verosimilitudes, odds ratio (OR y riesgo coronario según tabla de Framingham. Resultados: se revisaron 142 historias clínicas, con edad promedio de 34,7 (rango= 19-66 años; factores de riesgo cardiovascular 98,6%, sobrepeso/obesidad 48,6%, hipercolesterolemia 43,7%, hipertrigliceridemia 57,0%, colesterol-HDL 17,6%, hiperglucemia 7,0%, dislipidemia 28,9%, hipertensión 8,5%. Prevalencia de hábito de fumar 9,9%, consumo de alcohol 31,7%, sedentarismo 81,7%. Antecedentes familiares: hipertensión 7,7%, diabetes 5,6%, enfermedad coronaria 1,4%. Relación entre fumar/hipercolesterolemia-OR=3,77 (IC 95%=1,01-15,22, actividad-física/colesterol-HDL-OR=0,3 (IC 95%=0,1-0,88, fumar/riesgo-cardiovascular-OR=34,64 (IC 95%=2,79-947,4. Estimación según Framingham, bajo riesgo coronario Introduction: according to recent statistics, in Colombia cardiovascular diseases represent the second cause of mortality. In Casanare, mortality in 2009 due to cardiovascular disease was 54.3%. Objective: to determine the prevalence of cardiovascular risk factors and establish coronary risk at ten years in applicants aspiring to join a civil works company cared by an occupational health service institution

  19. UK biotechnology companies lead the way for Europe

    Energy Technology Data Exchange (ETDEWEB)

    1984-05-01

    A number of new well-structured biotechnology companies have been launched in Britain over the last few years, e.g. Imperial Biotechnology, IQ(Bio) and Celltech, while Wellcome and Searle (U.K.) are established firms, keeping up with the new technology. Imperial Biotechnology, with its accent on development rather than research and making products not in anyone else's catalogue, has produced a whole range of enzymes, biopolymers, antibiotics, and human proteins under contract. Its long term objective is to develop its own bioproducts. IQ(Bio) is poised to enter the diagnostic big league with its enzyme-linked immunoassay (Aelia) technology and intends to pursue opportunities where there is a strict regulatory climate prohibiting the growth of radioimmunoassays, e.g. France and Japan. It plans to produce kits that a doctor can use simply and give results in less than 30 minutes. Celltech has a culture products division which supplies large quantities of monoclonal antibodies, it has a diagnostics and health care research section, a speciality chemicals area and an industrial microbiology sector. Wellcome Biotechnology has an interferon programme which includes a broad range of chemical trials in the anticancer and antiviral areas. The company could supply the entire world market for interferon using cell culture and produces a very large range of conventional vaccines. Searle uses biotechnology as just another means of producing new drugs as they have a large drug development machine in place. A considerable amount of process development work has focused on Searle's artificial sweetener, aspartame, and they are looking at all the technical approaches to aspartame production.

  20. Appropriateness of creation of corporate culture in the company

    Directory of Open Access Journals (Sweden)

    T.A. Bashuk A.N. Zholudeva

    2011-03-01

    Full Text Available The article is devoted to the interpretation of the corporate culture as an efficient element of motivation system in the company. This work examines thoroughly the approach determination of value paradigms, which should be the basis of corporate culture. We also study herein the algorithm of culture implementation in the company starting from the analysis of internal condition of the company up to the maintaining of high level of the corporate culture.

  1. The Link between Multinational Companies and Intellectual Capital

    OpenAIRE

    Panczel Zoltan Tibor

    2010-01-01

    Nowadays it seems to be widely accepted that a multinational company has many different environmental, economic or social impacts on a territory. Moreover, every region has the right to aim to achieve sustainable development. For those reasons, this work proposes a tool based on the territory’s intangible assets. This tool allows the management of the sustainable development of a region where a multinational company has located, paying special attention to the way that this type of company ca...

  2. Appropriateness of creation of corporate culture in the company

    OpenAIRE

    T.A. Bashuk A.N. Zholudeva

    2011-01-01

    The article is devoted to the interpretation of the corporate culture as an efficient element of motivation system in the company. This work examines thoroughly the approach determination of value paradigms, which should be the basis of corporate culture. We also study herein the algorithm of culture implementation in the company starting from the analysis of internal condition of the company up to the maintaining of high level of the corporate culture.

  3. Marketing Situational Analysis of a chosen Company

    OpenAIRE

    Doležal, Ondřej

    2014-01-01

    The aim of this work is the proposal to improve the current situation on the basis of marketing situational analysis of the company which is engaged in the providing services. The company DOPRAVA ZÁRUBA M&K Ltd. provides tire services, vehicle servicing, petrol station, testing centers and emission. The main activity of the company is international road transport. The theoretical part deals with concepts such as the definition of marketing and the marketing environment, marketing mix and SWOT...

  4. The value of e-customer satisfaction to internet companies

    OpenAIRE

    Lozano Gutierrez, María del Carmen; Martínez María Dolores, Soledad María; Fuentes Martín, Federico

    2007-01-01

    The objective of the present work is to analyse Internet-based Company customer satisfaction with the purpose of incorporating a measurement of this intangible asset to the value of the company. This analysis begins with the relation of attributes of greater presence or importance in the generation of satisfaction for the average customer. A fuzzy treatment to the assigned valuations of importance for a concrete list of attributes in a selected company is applied, with the p...

  5. The complexity of small universal Turing machines: a survey

    CERN Document Server

    Neary, Turlough

    2011-01-01

    We survey some work concerned with small universal Turing machines, cellular automata, tag systems, and other simple models of computation. For example it has been an open question for some time as to whether the smallest known universal Turing machines of Minsky, Rogozhin, Baiocchi and Kudlek are efficient (polynomial time) simulators of Turing machines. These are some of the most intuitively simple computational devices and previously the best known simulations were exponentially slow. We discuss recent work that shows that these machines are indeed efficient simulators. In addition, another related result shows that Rule 110, a well-known elementary cellular automaton, is efficiently universal. We also discuss some old and new universal program size results, including the smallest known universal Turing machines. We finish the survey with results on generalised and restricted Turing machine models including machines with a periodic background on the tape (instead of a blank symbol), multiple tapes, multipl...

  6. Work Stress

    OpenAIRE

    Roeters, Anne

    2014-01-01

    Most of us agree that stress is a growing problem within organizations. We hear about the postal workers who had killed fellow employees and supervisors, and then hear that a major cause of tension is at work. Friends tell us that they are stressed due to increased workload and he has to work overtime because the company is restructured. We read the polls that employees complain about the stress in trying to balance family life with the work. Stress is a dynamic condition in which an individu...

  7. Smart customers, dumb companies.

    Science.gov (United States)

    Locke, C

    2000-01-01

    Customers today are being bombarded with an overwhelming array of choices. To alleviate customer frustration, say Steven Cristol and Peter Sealey in Simplicity Marketing, companies should stop creating new brands and product extensions. Better to consolidate product and service functions by following a four R approach: replace, repackage, reposition, and replenish. That's an outmoded, dictatorial view of markets, says Christopher Locke. Far from being stymied by choices, customers are rapidly becoming smarter than the companies that pretend to serve them. In this networked economy, people are talking among themselves, and that changes everything. Locke predicts we'll see a growing number of well-defined micromarkets--groups of customers converging in real time around entertaining and knowledgeable voices--such as NPR's car guys and the Motley Fool investment site. "Micromedia" Web sites will replace traditional advertising because they'll provide credible user-supplied news about products and services. Locke contends that an open exchange of information solves the "problem" of choice much better than manipulative strategies like simplicity or even permission marketing. Companies can participate in micromarkets through what Locke dubs "gonzo marketing." If Ford, for example, discovers that a subset of its employees are organic gardeners, it may offer support to a big independent organic-gardening Web site with donations and employee volunteers. This marketing effort would be driven not by advertising managers but by people with genuine interest in each micromarket, so it would have credibility with customers. With gonzo marketing, both companies and their markets will benefit.

  8. Pork in good company?

    DEFF Research Database (Denmark)

    Verbeke, Wim; Perez-Cueto, Federico J.; de Barcellos, Marcia D.

    2013-01-01

    (odds ratio=1.30) as side dishes to pork meat. Substantial cross-cultural differences were revealed in line with typical pork consumption and meal composition habits in the respective countries. Finally, this study found that the company of family plays a significant role when choosing side dishes...

  9. Building machine learning systems with Python

    CERN Document Server

    Richert, Willi

    2013-01-01

    This is a tutorial-driven and practical, but well-grounded book showcasing good Machine Learning practices. There will be an emphasis on using existing technologies instead of showing how to write your own implementations of algorithms. This book is a scenario-based, example-driven tutorial. By the end of the book you will have learnt critical aspects of Machine Learning Python projects and experienced the power of ML-based systems by actually working on them.This book primarily targets Python developers who want to learn about and build Machine Learning into their projects, or who want to pro

  10. Modal Analysis of Drilling Machine Derrick

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    In this paper, the finite element analysis software ( ANSYS ) is applied to the modal analysis of a ZJ30/1700CZ 's drilling machine derrick under a natural condition and a loaded condition, respectively. The preceding nine step natural frequencies and the corresponding mode shapes of the derrick are calculated. By means of the comparison of the natural frequency of the derrick with the design work frequency of the drilling machine and the analysis of the step mode shape of the derrick, the drilling machine derrick structure design is proved to be correct.

  11. BADMINTON TRAINING MACHINE WITH IMPACT MECHANISM

    OpenAIRE

    B.F. Yousif; KOK SOON YEH

    2011-01-01

    In the current work, a newly machine was designed and fabricated for badminton training purpose. In the designing process, CATIA software was used to design and simulate the machine components. The design was based on direct impact method to launch the shuttle using spring as the source of the impact. Hook’s law was used theoretically to determine the initial and the maximum lengths of the springs. The main feature of the machine is that can move in two axes (up and down, left and right). For...

  12. Non-equilibrium quantum heat machines

    Science.gov (United States)

    Alicki, Robert; Gelbwaser-Klimovsky, David

    2015-11-01

    Standard heat machines (engine, heat pump, refrigerator) are composed of a system (working fluid) coupled to at least two equilibrium baths at different temperatures and periodically driven by an external device (piston or rotor) sometimes called the work reservoir. The aim of this paper is to go beyond this scheme by considering environments which are stationary but cannot be decomposed into a few baths at thermal equilibrium. Such situations are important, for example in solar cells, chemical machines in biology, various realizations of laser cooling or nanoscopic machines driven by laser radiation. We classify non-equilibrium baths depending on their thermodynamic behavior and show that the efficiency of heat machines powered by them is limited by the generalized Carnot bound.

  13. 高频X线机管电压调整电路的工作原理及故障分析%Working Principle and Fault Analysis of Tube Voltage Adjustment Circuit for High-frequency X-ray Machine

    Institute of Scientific and Technical Information of China (English)

    赵祥坤; 于广浩; 李永生

    2013-01-01

    High frequency X-ray machine and power frequency X-ray machine differ from voltage adjusting circuit. SCM TL594 is the core device in voltage adjusting circuit of high -frequency X -ray machine. Its application has a strong representation in high frequency X -ray machine's tube voltage adjustment. The tube voltage and frequency of high frequency X-ray machine are controlled by the output pulse width and frequency of TL594 .The understanding of the operating principle of TL594 not only has certain theory significance for high frequency machine teaching but also practical significance for the high frequency machine troubleshooting.%高频X线机区别于工频X线机的主要电路是管电压调整电路,而单片机TL594又是管电压调整电路中的核心器件,它的应用在高频机管电压调节中具有较强的代表性.TL594是通过改变输出脉宽和频率,直接控制高频X线机X线管电压的高低和频率的大小通过对TL594每一个管脚功能的深入探讨,研究TL594在高频X线管电压调节中的工作原理,将不仅对高频机教学具有一定的理论意义,而且在高频机故障排除中具有较强的实践意义.

  14. Machinability of advanced materials

    CERN Document Server

    Davim, J Paulo

    2014-01-01

    Machinability of Advanced Materials addresses the level of difficulty involved in machining a material, or multiple materials, with the appropriate tooling and cutting parameters.  A variety of factors determine a material's machinability, including tool life rate, cutting forces and power consumption, surface integrity, limiting rate of metal removal, and chip shape. These topics, among others, and multiple examples comprise this research resource for engineering students, academics, and practitioners.

  15. Pattern recognition & machine learning

    CERN Document Server

    Anzai, Y

    1992-01-01

    This is the first text to provide a unified and self-contained introduction to visual pattern recognition and machine learning. It is useful as a general introduction to artifical intelligence and knowledge engineering, and no previous knowledge of pattern recognition or machine learning is necessary. Basic for various pattern recognition and machine learning methods. Translated from Japanese, the book also features chapter exercises, keywords, and summaries.

  16. Support vector machines applications

    CERN Document Server

    Guo, Guodong

    2014-01-01

    Support vector machines (SVM) have both a solid mathematical background and good performance in practical applications. This book focuses on the recent advances and applications of the SVM in different areas, such as image processing, medical practice, computer vision, pattern recognition, machine learning, applied statistics, business intelligence, and artificial intelligence. The aim of this book is to create a comprehensive source on support vector machine applications, especially some recent advances.

  17. Machining of titanium alloys

    CERN Document Server

    2014-01-01

    This book presents a collection of examples illustrating the resent research advances in the machining of titanium alloys. These materials have excellent strength and fracture toughness as well as low density and good corrosion resistance; however, machinability is still poor due to their low thermal conductivity and high chemical reactivity with cutting tool materials. This book presents solutions to enhance machinability in titanium-based alloys and serves as a useful reference to professionals and researchers in aerospace, automotive and biomedical fields.

  18. Design of an electrochemical micromachining machine

    OpenAIRE

    Spieser, A; Ivanov, A.

    2014-01-01

    Electrochemical micromachining (μECM) is a non-conventional machining process based on the phenomenon of electrolysis. μECM became an attractive area of research due to the fact that this process does not create any defective layer after machining and that there is a growing demand for better surface integrity on different micro applications including microfluidics systems, stress-free drilled holes in automotive and aerospace manufacturing with complex shapes, etc. This work presents the des...

  19. Implementing Machine Learning in the PCWG Tool

    Energy Technology Data Exchange (ETDEWEB)

    Clifton, Andrew; Ding, Yu; Stuart, Peter

    2016-12-13

    The Power Curve Working Group (www.pcwg.org) is an ad-hoc industry-led group to investigate the performance of wind turbines in real-world conditions. As part of ongoing experience-sharing exercises, machine learning has been proposed as a possible way to predict turbine performance. This presentation provides some background information about machine learning and how it might be implemented in the PCWG exercises.

  20. Methods and systems for micro machines

    Science.gov (United States)

    Stalford, Harold L.

    2017-04-11

    A micro machine may be in or less than the micrometer domain. The micro machine may include a micro actuator and a micro shaft coupled to the micro actuator. The micro shaft is operable to be driven by the micro actuator. A tool is coupled to the micro shaft and is operable to perform work in response to at least motion of the micro shaft.

  1. A chaotic agricultural machines production growth model

    OpenAIRE

    Jablanović, Vesna D.

    2011-01-01

    Chaos theory, as a set of ideas, explains the structure in aperiodic, unpredictable dynamic systems. The basic aim of this paper is to provide a relatively simple agricultural machines production growth model that is capable of generating stable equilibrium, cycles, or chaos. A key hypothesis of this work is based on the idea that the coefficient π = 1 + α plays a crucial role in explaining local stability of the agricultural machines production, where α is an autonomous growth rate of the ag...

  2. Method of fabricating a micro machine

    Science.gov (United States)

    Stalford, Harold L

    2014-11-11

    A micro machine may be in or less than the micrometer domain. The micro machine may include a micro actuator and a micro shaft coupled to the micro actuator. The micro shaft is operable to be driven by the micro actuator. A tool is coupled to the micro shaft and is operable to perform work in response to at least motion of the micro shaft.

  3. Analysis on the Financing Structure of Working Capital of Listed Companies in China’s Western Region in 2011%2011年西部地区上市公司营运资金融资结构分析

    Institute of Scientific and Technical Information of China (English)

    韩建新

    2012-01-01

      融资结构是企业风险收益权衡的最终结果,是管理者意识和管理能力的体现,营运资金融资结构作为其中的重要部分,直接关系到企业的运营效率和风险。西部地区是中国相对不发达地区,通过对其营运资金融资结构分析,得出结论是西部地区重视风险管理和资金运用,具有发展潜力。%  The financing structure is the final result of risk-return trade-off and the reflection of the managers’ awareness and management capacity in a company. The working capital, as an important component of financing structure, is directly related to the operational efficiency and risk of a corporate. The western region is relatively underdeveloped area in China. After analyzing the financing structure of the working capital of listed companies in China’s western area, this paper concludes that the listed companies attach great importance to risk management and the use of funds, so they have potentials for growth.

  4. Being@: keep company with electronic evidence!

    NARCIS (Netherlands)

    Kooistra, J.; Hopstaken, Kees

    2000-01-01

    The title heading this paper Being@ keep company with electronic evedence is referring to an university training on the Internet which is processing insight into how science 'works' (in the active sense of the word) under the articulation of information- and communication technology (ICT) and pursui

  5. A LITERATURE REVIEW OF COMPANIES CASH HOLDINGS

    Directory of Open Access Journals (Sweden)

    Iuliana Oana Mihai

    2015-05-01

    Full Text Available The purpose of this article is to investigate the scientific literature related to cash holdings of non-financial companies. We concentrated in our work on motives, determinants and theories of cash holding. The result of this study will enhance understanding of cash holding determinants and relevance of postulated theories in Romanian context. The main objective is to.

  6. Rotating electrical machines

    CERN Document Server

    Le Doeuff, René

    2013-01-01

    In this book a general matrix-based approach to modeling electrical machines is promulgated. The model uses instantaneous quantities for key variables and enables the user to easily take into account associations between rotating machines and static converters (such as in variable speed drives).   General equations of electromechanical energy conversion are established early in the treatment of the topic and then applied to synchronous, induction and DC machines. The primary characteristics of these machines are established for steady state behavior as well as for variable speed scenarios. I

  7. Debugging the virtual machine

    Energy Technology Data Exchange (ETDEWEB)

    Miller, P.; Pizzi, R.

    1994-09-02

    A computer program is really nothing more than a virtual machine built to perform a task. The program`s source code expresses abstract constructs using low level language features. When a virtual machine breaks, it can be very difficult to debug because typical debuggers provide only low level machine implementation in formation to the software engineer. We believe that the debugging task can be simplified by introducing aspects of the abstract design into the source code. We introduce OODIE, an object-oriented language extension that allows programmers to specify a virtual debugging environment which includes the design and abstract data types of the virtual machine.

  8. Machine learning with R

    CERN Document Server

    Lantz, Brett

    2013-01-01

    Written as a tutorial to explore and understand the power of R for machine learning. This practical guide that covers all of the need to know topics in a very systematic way. For each machine learning approach, each step in the process is detailed, from preparing the data for analysis to evaluating the results. These steps will build the knowledge you need to apply them to your own data science tasks.Intended for those who want to learn how to use R's machine learning capabilities and gain insight from your data. Perhaps you already know a bit about machine learning, but have never used R; or

  9. Induction machine handbook

    CERN Document Server

    Boldea, Ion

    2002-01-01

    Often called the workhorse of industry, the advent of power electronics and advances in digital control are transforming the induction motor into the racehorse of industrial motion control. Now, the classic texts on induction machines are nearly three decades old, while more recent books on electric motors lack the necessary depth and detail on induction machines.The Induction Machine Handbook fills industry's long-standing need for a comprehensive treatise embracing the many intricate facets of induction machine analysis and design. Moving gradually from simple to complex and from standard to

  10. Micro machining techniques commonly used in manufacturing field

    Directory of Open Access Journals (Sweden)

    Adem Çiçek

    2011-06-01

    Full Text Available Developing technology and the need for high-precision parts in manufacturing industry has revealed the micro-machining. Machine tools and work pieces are miniaturized through micro-machining, materials and power consumption reduced to a minimum level. High productiveness in the use of resources and time can be obtained through this rapidly growing industry around the world. In this paper, different micro-machining techniques have been classified revising the investigations recently performed in the field of micro-machining and discussed their contributions to manufacturing process.

  11. THE INFLUENCE SEWING MACHINE ON FOOTWEAR MOCCASIN ECONOMIC INDICATORS AI ASSEMBLY OPERATIONS

    Directory of Open Access Journals (Sweden)

    MALCOCI Marina

    2014-05-01

    Full Text Available With the evolution of time changes, grows and improves, construction, form, rationality and argumentation usefulness of various types of footwear, namely machines. In the present paper analyzes a number of sewing machines, bound for achieving moccasin shoes. With sewing machines can perform a wide variety of stitches, they create an aesthetically pleasing, but all at once enable product diversification with minimum expenses. Sewing machines moccasins are distinguished by technological parameters, number of stitches, design and affordability. Sewing operation carried out in these machines is carried out within 72 seconds to manual operation - 22 minutes. A flow diagram mechanical requires a reduced number of workers (e.g., 3 workers, to a manual flow diagram - 38 workers. Labour productivity in the use of sewing machines increase by 10 times, and operation cost decreases from 3,7 to 5,7 lei. Regardless of the sewing moccasins construction company helps to increase productivity, quality completion of the operation, ie products, reducing the time required to manufacture the products, shortening manufacturing cycle. Among the cars analyzed, the most recommended sewing machine as OS 7700 P Global company because it represents the best technical features. Sewing machines for manufacturing footwear moccasin were implemented in Moldova in 2010, at the "Cristina Mold Rom Simpex" in Chisinau. Because, company management understood beneficial role of sewing moccasins on quality operation, but also on other economic indicators. Currently the majority of footwear enterprises in Moldova sewing moccasins are done manually. One problem is the high price of sewing machines moccasins.

  12. Virtual machine vs Real Machine: Security Systems

    Directory of Open Access Journals (Sweden)

    Dr. C. Suresh Gnana Das

    2009-08-01

    Full Text Available This paper argues that the operating system and applications currently running on a real machine should relocate into a virtual machine. This structure enables services to be added below the operating system and to do so without trusting or modifying the operating system or applications. To demonstrate the usefulness of this structure, we describe three services that take advantage of it: secure logging, intrusion prevention and detection, and environment migration. In particular, we can provide services below the guest operating system without trusting or modifying it. We believe providing services at this layer are especially useful for enhancing security and mobility. This position paper describes the general benefits and challenges that arise from running most applications in a virtual machine, and then describes some example services and alternative ways to provide those services.

  13. Setup reduction approaches for machining

    Energy Technology Data Exchange (ETDEWEB)

    Gillespie, L.K.

    1997-04-01

    Rapid setup is a common improvement approach in press working operations such as blanking and shearing. It has paid major dividends in the sheet metal industry. It also has been a major improvement thrust for high-production machining operations. However, the literature does not well cover all the setup operations and constraints for job shop work. This review provides some insight into the issues involved. It highlights the floor problems and provides insights for further improvement. The report is designed to provide a quick understanding of the issues.

  14. Marketing company profile: Consumer-led company features

    Directory of Open Access Journals (Sweden)

    Kovačević Ivana

    2005-01-01

    Full Text Available Starting point in defining modern company profile is its absolute orientation to customers. So called Customer-led companies are those which all their activities put toward customers instead of product which is offered. These companies try to make all their sectors to be oriented toward customers.

  15. New developments in occupational health and safety management in Danish companies

    DEFF Research Database (Denmark)

    Seim, Rikke; Poulsen, Signe; Broberg, Ole

    2014-01-01

    This paper identifies potential impacts of recent legislative OHS reforms in Denmark on OHS management in companies; the focus being how this shift in legislation has manifested itself in the companies' organization and daily work with OHS...

  16. HUMAN MACHINE COOPERATIVE TELEROBOTICS

    Energy Technology Data Exchange (ETDEWEB)

    William R. Hamel; Spivey Douglass; Sewoong Kim; Pamela Murray; Yang Shou; Sriram Sridharan; Ge Zhang; Scott Thayer; Rajiv V. Dubey

    2003-06-30

    The remediation and deactivation and decommissioning (D&D) of nuclear waste storage tanks using telerobotics is one of the most challenging tasks faced in environmental cleanup. Since a number of tanks have reached the end of their design life and some of them have leaks, the unstructured, uncertain and radioactive environment makes the work inefficient and expensive. However, the execution time of teleoperation consumes ten to hundred times that of direct contact with an associated loss in quality. Thus, a considerable effort has been expended to improve the quality and efficiency of telerobotics by incorporating into teleoperation and robotic control functions such as planning, trajectory generation, vision, and 3-D modeling. One example is the Robot Task Space Analyzer (RTSA), which has been developed at the Robotics and Electromechanical Systems Laboratory (REMSL) at the University of Tennessee in support of the D&D robotic work at the Oak Ridge National Laboratory and the National Energy Technology Laboratory. This system builds 3-D models of the area of interest in task space through automatic image processing and/or human interactive manual modeling. The RTSA generates a task plan file, which describes the execution of a task including manipulator and tooling motions. The high level controller of the manipulator interprets the task plan file and executes the task automatically. Thus, if the environment is not highly unstructured, a tooling task, which interacts with environment, will be executed in the autonomous mode. Therefore, the RTSA not only increases the system efficiency, but also improves the system reliability because the operator will act as backstop for safe operation after the 3-D models and task plan files are generated. However, unstructured conditions of environment and tasks necessitate that the telerobot operates in the teleoperation mode for successful execution of task. The inefficiency in the teleoperation mode led to the research

  17. 77 FR 46943 - Airworthiness Directives; The Boeing Company Airplanes

    Science.gov (United States)

    2012-08-07

    ... thread between ST Aerospace and The Boeing Company was forwarded to the FAA by The Boeing Company as an.... \\1\\ Depending on work package. Authority for This Rulemaking Title 49 of the United States Code... Code 25, Equipment/Furnishings. (e) Unsafe Condition This AD was prompted by a report of an...

  18. The Boeing Company's Manufacturing Technology Student Internship. Evaluation Report.

    Science.gov (United States)

    Owens, Thomas R.

    The Boeing Company contracted with the Northwest Regional Educational Laboratory to evaluate its student internship program, part of a "school-to-work" effort modeled after the nationally recognized Tech Prep initiative. The company's involvement in the Tech Prep Program has been implemented in three phases: (1) the initial phase helped…

  19. Motivation and Evaluation of Employees in a Selected Company

    OpenAIRE

    ŠVIHÁLKOVÁ, Klára

    2015-01-01

    This work is focused on an analysis and evaluation of the real state in the sphere of motivation and evaluation of employees in a selected company. The aim of the research was to determine whether the company uses a proper employee evaluation system and if it can motivate their employees effectively.

  20. The System of Compensation in a Chosen Company

    OpenAIRE

    Klein, Robert

    2016-01-01

    The bachelor thesis evaluates the system of compensation in a company and suggests improvements, which could help the company to make rewarding of employees more functional. It was proposed to add motivational part of wage for the employees to increase sales of goods, change occupational pension scheme and increase extra money for working at night.

  1. Analysis of motivation of employees in some company

    OpenAIRE

    Dvořáková, Pavla

    2008-01-01

    The diploma paper is devided into the theoretical and practical part. Theoretical part is describing the motivation and motivation of work. In the practical part there is a analysis of the motivation of employees in the company I chose. The outcome of this diploma is the motivation program for this company.

  2. OPTIMIZATION OF THE OIL EXTRACTING COMPANY MANAGEMENT SERVICES

    Directory of Open Access Journals (Sweden)

    R.H. Bahitova

    2005-12-01

    Full Text Available The conceptual model of management of the service in company with a view of maintenance of its steady development is discussed in the work. The organizational structure of the financial system, which is the base element of all control system of the company and which is carrying out processes of budgeting and the control is considered.

  3. The use of the Job Satisfaction Scale in Slovenian companies

    Directory of Open Access Journals (Sweden)

    Vid Pogačnik

    2000-12-01

    Full Text Available The Job Satisfaction Scale was applied to a representative sample of 5.094 employees in 54 Slovenian companies. Appropriate metric characteristics and the possibility of insight into global job satisfaction as well as into its 15 aspects, speak for usefulness of this instrument. The quality of work life in Slovenian companies is also briefly described.

  4. New Comer Orientation Training in Manufacturing Industry: A Comparison Analysis Between Indonesian Company and Japanese Company

    Directory of Open Access Journals (Sweden)

    Wen-Chih Liao

    2011-01-01

    Full Text Available Problem statement: Organization must constantly expands their knowledge, skills and behavior to meet customer need and compete in today’s demanding and rapidly changing business environment. As there are many foreign company in Indonesia, this research is attempt to understand how the Japanese ownership companies in Indonesia makes its new comer orientation training program differ with original Indonesian company. Approach: The research is qualitative research using case study research by interviewing General Manager and Human Resources manager in Company in Indonesia. Case study research excels at bringing us to an understanding of a complex issue or object and can extend experience or add strength to what is already known through previous research. Results: Different perspective on valuing employee and the different characteristic in the ownership of the company has given different style on its orientation training for new comer and reflected in its content of the training. Finally, new comer orientations can result in different effects. Most Japanese Company has more structures and formal orientation training for new comer than Indonesian Company. The higher the level of Japan ownership, the more the orientation are aim to provide new comer with fundamental philosophy and basic thinking of the company. They are preparing new comer to have the right attitude, knowing the basic rules and regulations. Conclusion: The contribution of this study is to gain deeper understanding from different points of views on new comer orientation training program by studying case studies in 4 companies located in Indonesia. A formal and structured new comer orientation program can reduce the turnover rate, give stability for human resources assurance and win the competition in the market. Indonesian companies will in the future trying to match with others company who’s think their employee as an assets. Employee will more willing to work and contribute in the

  5. Why good companies go bad.

    Science.gov (United States)

    Sull, D N

    1999-01-01

    One of the most common business phenomena is also one of the most perplexing: when successful companies face big changes, they often fail to respond effectively. Many assume that the problem is paralysis, but the real problem, according to Donald Sull, is active inertia--an organization's tendency to persist in established patterns of behavior. Most leading businesses owe their prosperity to a fresh competitive formula--a distinctive combination of strategies, relationships, processes, and values that sets them apart from the crowd. But when changes occur in a company's markets, the formula that brought success instead brings failure. Stuck in the modes of thinking and working that have been successful in the past, market leaders simply accelerate all their tried-and-true activities. In attempting to dig themselves out of a hole, they just deepen it. In particular, four things happen: strategic frames become blinders; processes harden into routines; relationships become shackles; and values turn into dogmas. To illustrate his point, the author draws on examples of pairs of industry leaders, like Goodyear and Firestone, whose fates diverged when they were forced to respond to dramatic changes in the tire industry. In addition to diagnosing the problem, Sull offers practical advice for avoiding active inertia. Rather than rushing to ask, "What should we do?" managers should pause to ask, "What hinders us?" That question focuses attention on the proper things: the strategic frames, processes, relationships, and values that can subvert action by channeling it in the wrong direction.

  6. Precision forming machine with rolling plate cross wedge rolling

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    Roller cross wedge rolling(CWR)machines have high rigidity, but sector dies are difficult to process. Plate CWR machines have low rigidity and need large floor space, but plate dies are easy to process. Neither roller CWR machine nor plate CWR machine can produce larger workpieces. Based on the above conclusions, this paper presents the mechanical principle of the precision forming machine with rolling plate CWR. Then, its design principle and machine construction are presented. There are a top press roller above the upper sliding plate and a bottom press roller under the lower sliding plate. The press rollers make rolling contact with the sliding plates. The plate dies are mounted on the upper and lower sliding plates, respectively. Furthermore, the axes of both press rollers and centerline of work-piece always keep in the identical vertical plane during forming process. These make the machine retain advantages of high rigidity for roller CWR machine and simpleness of manufacturing dies for plate CWR machine, and abandon defects of poor rigidity for plate CWR machine and difficulty of manufac-turing dies for roller CWR machine. Moreover, the machine can produce larger workpieces.

  7. Precision forming machine with rolling plate cross wedge rolling

    Institute of Scientific and Technical Information of China (English)

    SONG YuQuan; LI ZhiGang; WANG MingHui; GUAN XiaoFang

    2009-01-01

    Roller cross wedge rolling (CWR) machines have high rigidity, but sector dies are difficult to process.Plate CWR machines have low rigidity and need large floor space, but plate dies are easy to process.Neither roller CWR machine nor plate CWR machine can produce larger workpieces.Based on the above conclusions, this paper presents the mechanical principle of the precision forming machine with rolling plate CWR.Then, its design principle and machine construction are presented.There are a top press roller above the upper sliding plate and a bottom press roller under the lower sliding plate.The press rollers make rolling contact with the sliding plates.The plate dies are mounted on the upper and lower sliding plates, respectively.Furthermore, the axes of both press rollers and centerline of work-piece always keep in the identical vertical plane during forming process.These make the machine re-tain advantages of high rigidity for roller CWR machine and simpleness of manufacturing dies for plate CWR machine, and abandon defects of poor rigidity for plate CWR machine and difficulty of manufac-turing dies for roller CWR machine.Moreover, the machine can produce larger workpieces.

  8. Design of Maritime Satellite Navigation Equipment Man-Machine Interactive Software Based on ReWorks Operating System%基于ReWorks操作系统海用卫星导航设备人机交互软件开发

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    针对海用卫星导航设备人机交互软件,引入了ReWorks操作系统,研究了基于ReWorks的应用软件开发方法,使用ReDe开发环境和DirectX工具实现了海用卫星导航设备人机交互软件的设计开发,最后工程实践表明其正确性和有效性。%According to maritime satellite navigation equipment man-machine interactive software, ReWorks operating system is introduced, software development methods Based on ReWorks operating system is studied, maritime satellite navigation equipment man-machine interactive software design is realized by using the development environment of ReDe and DirectX tool. The final project application proved its correctness and effectiveness.

  9. enjoy the company of

    Institute of Scientific and Technical Information of China (English)

    柳延延

    2004-01-01

    @@ 请先读一段文字: John is a clean-cut, great-looking guy who likes his father and mother, who frowns on drugs, who takes his profession seriously, who likes to have a good time, who enjoys the company of the opposite sex, and who has his own goals and values. He's a boy with no surprise up in his sleeve.

  10. Machine learning a probabilistic perspective

    CERN Document Server

    Murphy, Kevin P

    2012-01-01

    Today's Web-enabled deluge of electronic data calls for automated methods of data analysis. Machine learning provides these, developing methods that can automatically detect patterns in data and then use the uncovered patterns to predict future data. This textbook offers a comprehensive and self-contained introduction to the field of machine learning, based on a unified, probabilistic approach. The coverage combines breadth and depth, offering necessary background material on such topics as probability, optimization, and linear algebra as well as discussion of recent developments in the field, including conditional random fields, L1 regularization, and deep learning. The book is written in an informal, accessible style, complete with pseudo-code for the most important algorithms. All topics are copiously illustrated with color images and worked examples drawn from such application domains as biology, text processing, computer vision, and robotics. Rather than providing a cookbook of different heuristic method...

  11. Differentially Private Support Vector Machines

    CERN Document Server

    Sarwate, Anand; Monteleoni, Claire

    2009-01-01

    This paper addresses the problem of practical privacy-preserving machine learning: how to detect patterns in massive, real-world databases of sensitive personal information, while maintaining the privacy of individuals. Chaudhuri and Monteleoni (2008) recently provided privacy-preserving techniques for learning linear separators via regularized logistic regression. With the goal of handling large databases that may not be linearly separable, we provide privacy-preserving support vector machine algorithms. We address general challenges left open by past work, such as how to release a kernel classifier without releasing any of the training data, and how to tune algorithm parameters in a privacy-preserving manner. We provide general, efficient algorithms for linear and nonlinear kernel SVMs, which guarantee $\\epsilon$-differential privacy, a very strong privacy definition due to Dwork et al. (2006). We also provide learning generalization guarantees. Empirical evaluations reveal promising performance on real and...

  12. Progress of Sintering Technology in Handan Iron and Steel Company

    Institute of Scientific and Technical Information of China (English)

    LIU Zheng-ping; WANG Yi-fang; WU Jin-bo

    2004-01-01

    As one of the biggest iron and steel companies in China, Handan Iron and Steel Co has made a substantial progress in the sintering process. The mini-pellet sintering technology has been successfully applied based on lab investigation and industrial trials. Equipment enlargement was realized through replacing small sintering strands with the construction of huge sintering machine with a grate area of 400 m2. The productivity, iron content and the metallurgical properties of sintering process have been improved.

  13. Stirling machine operating experience

    Energy Technology Data Exchange (ETDEWEB)

    Ross, B. [Stirling Technology Co., Richland, WA (United States); Dudenhoefer, J.E. [Lewis Research Center, Cleveland, OH (United States)

    1994-09-01

    Numerous Stirling machines have been built and operated, but the operating experience of these machines is not well known. It is important to examine this operating experience in detail, because it largely substantiates the claim that stirling machines are capable of reliable and lengthy operating lives. The amount of data that exists is impressive, considering that many of the machines that have been built are developmental machines intended to show proof of concept, and are not expected to operate for lengthy periods of time. Some Stirling machines (typically free-piston machines) achieve long life through non-contact bearings, while other Stirling machines (typically kinematic) have achieved long operating lives through regular seal and bearing replacements. In addition to engine and system testing, life testing of critical components is also considered. The record in this paper is not complete, due to the reluctance of some organizations to release operational data and because several organizations were not contacted. The authors intend to repeat this assessment in three years, hoping for even greater participation.

  14. Machine Intelligence and Explication

    NARCIS (Netherlands)

    Wieringa, Roelf J.

    1987-01-01

    This report is an MA ("doctoraal") thesis submitted to the department of philosophy, university of Amsterdam. It attempts to answer the question whether machines can think by conceptual analysis. Ideally. a conceptual analysis should give plausible explications of the concepts of "machine" and "inte

  15. Microsoft Azure machine learning

    CERN Document Server

    Mund, Sumit

    2015-01-01

    The book is intended for those who want to learn how to use Azure Machine Learning. Perhaps you already know a bit about Machine Learning, but have never used ML Studio in Azure; or perhaps you are an absolute newbie. In either case, this book will get you up-and-running quickly.

  16. Reactive Turing machines

    NARCIS (Netherlands)

    Baeten, J.C.M.; Luttik, B.; Tilburg, P.J.A. van

    2013-01-01

    We propose reactive Turing machines (RTMs), extending classical Turing machines with a process-theoretical notion of interaction, and use it to define a notion of executable transition system. We show that every computable transition system with a bounded branching degree is simulated modulo diverge

  17. Machine Intelligence and Explication

    NARCIS (Netherlands)

    Wieringa, Roel

    1987-01-01

    This report is an MA ("doctoraal") thesis submitted to the department of philosophy, university of Amsterdam. It attempts to answer the question whether machines can think by conceptual analysis. Ideally. a conceptual analysis should give plausible explications of the concepts of "machine" and "inte

  18. Coordinate measuring machines

    DEFF Research Database (Denmark)

    De Chiffre, Leonardo

    This document is used in connection with three exercises of 2 hours duration as a part of the course GEOMETRICAL METROLOGY AND MACHINE TESTING. The exercises concern three aspects of coordinate measuring: 1) Measuring and verification of tolerances on coordinate measuring machines, 2) Traceability...

  19. Simple Machine Junk Cars

    Science.gov (United States)

    Herald, Christine

    2010-01-01

    During the month of May, the author's eighth-grade physical science students study the six simple machines through hands-on activities, reading assignments, videos, and notes. At the end of the month, they can easily identify the six types of simple machine: inclined plane, wheel and axle, pulley, screw, wedge, and lever. To conclude this unit,…

  20. Human Machine Learning Symbiosis

    Science.gov (United States)

    Walsh, Kenneth R.; Hoque, Md Tamjidul; Williams, Kim H.

    2017-01-01

    Human Machine Learning Symbiosis is a cooperative system where both the human learner and the machine learner learn from each other to create an effective and efficient learning environment adapted to the needs of the human learner. Such a system can be used in online learning modules so that the modules adapt to each learner's learning state both…