WorldWideScience

Sample records for skid trailers

  1. Evaluation of pavement skid resistance using high speed texture measurement

    Directory of Open Access Journals (Sweden)

    Jay N. Meegoda

    2015-12-01

    Full Text Available Skid resistance is an important parameter for highway designs, construction, management, maintenance and safety. The purpose of this manuscript is to propose the correlation between skid resistance, which is measured as skid resistance trailer, and mean profile depth (MPD or the macro surface texture, which is measured by vehicle mounted laser, so that highway agencies can predict the skid resistance of pavement without the use of expensive and time consuming skid resistance trailer, which also causes disruption of traffic in use. In this research skid numbers and MPD from 5 new asphalt pavements and 4 old asphalt pavements were collected using a locked wheel skid trailer and a vehicle mounted laser. Using the data collected, a correlation between the skid number (SN40R collected by locked wheel skid tester and the texture data or MPD collected by a vehicle mounted laser operating at highway speeds was developed. The proposed correlation for new pavements was positive for MPD values less than 0.75 mm to reach a peak SN40R value, then there was a negative correlation as the MPD increases until the MPD value was equal to 1.1 mm and beyond the MPD value of 1.1 mm to the maximum value of 1.4 mm, SN40R value remained almost constant. There were significant data scatter for the MPD value of 0.8 mm. To explain these results, water film thickness during the friction test was calculated and the critical MPD was defined. The effect of sealed water pool on the SN40R was discussed. The test result showed a similar trend for older asphalt pavements, but with lower SN40R values due to the polishing of pavement micro-texture by traffic. Hence, a reduction factor was proposed for older pavements based on cumulative traffic volume for the above correlation to predict the skid resistance of older pavements.

  2. SUSTAINABLE TRAILER FLOORING

    OpenAIRE

    John Lu; Marc Chorney; Lowell Peterson

    2009-01-01

    Different trailer flooring materials, including wood-based, aluminum, steel, and synthetic plastic floors, were evaluated in accordance with their durability and sustainability to our natural environment. Wood-based trailer flooring is an eco-friendly product. It is the most sustainable trailer flooring material compared with fossil fuel-intensive steel, aluminum, and plastics. It is renewable and recyclable. Oak, hard maple, and apitong are strong and durable hardwood species that are curren...

  3. SUSTAINABLE TRAILER FLOORING

    Directory of Open Access Journals (Sweden)

    John Lu

    2009-05-01

    Full Text Available Different trailer flooring materials, including wood-based, aluminum, steel, and synthetic plastic floors, were evaluated in accordance with their durability and sustainability to our natural environment. Wood-based trailer flooring is an eco-friendly product. It is the most sustainable trailer flooring material compared with fossil fuel-intensive steel, aluminum, and plastics. It is renewable and recyclable. Oak, hard maple, and apitong are strong and durable hardwood species that are currently extensively used for trailer flooring. For manufacture, wood-based flooring is higher in energy efficiency and lower in carbon emission than steel, aluminum and plastics. Moreover, wood per se is a natural product that sequesters carbon. Accordingly, using more wood-based trailer flooring is effective to reduce global warming.

  4. LANL Skid Testing Summary

    Energy Technology Data Exchange (ETDEWEB)

    Dickson, Peter [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2014-04-09

    Our improved understanding of the processes occurring during complex drop / skid events has explained the previously observed scatter in skid and drop test data, and provided new insights into effective mitigation strategies. However, it has been perceived to undermine our current safety assumptions, which is inaccurate. We have no reason to believe that our safety margin from HEVR (the event of concern) is any different to that previously assumed – we just have a much better experimental and theoretical basis by which to measure it more accurately. Until this work is complete or, at least, more mature, we cannot draw any conclusions on whether we are more or less safe than we thought, but we know that use of cushioned surfaces, along with sensible housekeeping, mitigates the potential activation of the skid-grit mechanism.

  5. Portable exhausters POR-004 SKID B, POR-005 SKID C, POR-006 SKID D storage plan

    International Nuclear Information System (INIS)

    Nelson, O.D.; Keller, G.M.

    1997-01-01

    This document provides a storage plan for portable exhausters POR-004 SKID B, POR-005 SKID C, AND POR-006 SKID D. The exhausters will be stored until they are needed by the TWRS (Tank Waste Remediation Systems) Saltwell Pumping Program. The storage plan provides criteria for portable exhauster storage, periodic inspections during storage, and retrieval from storage

  6. The Demise of Skid Row.

    Science.gov (United States)

    Siegal, Harvey A.; Inciardi, James A.

    1982-01-01

    Describes the history and evolution of the American skid row; analyzes the changes it has undergone, particularly in the face of urban renewal; and speculates on its future. Includes opinions of the inhabitants of skid row which were obtained from interviews. (MJL)

  7. Work Zone Data Collection Trailer

    Data.gov (United States)

    Federal Laboratory Consortium — The Work Zone Data Collection Trailer was designed and constructed to enhance data collection and analysis capabilities for the "Evaluating Roadway Construction Work...

  8. Trailer steering control of a tractor-trailer Robot

    NARCIS (Netherlands)

    Ritzen, P.J.; Roebroek, E.J.W.; Van De Wouw, N.; Jiang, Z.P.; Nijmeijer, H.

    2016-01-01

    In this paper, we consider active trailer steering control as a means to improve the maneuverability of (long) truck-trailer combinations during cornering. Hereto, we formulate the problem of reducing the so-called swept path width during cornering and that of eliminating unsafe tail swing of the

  9. Becoming Trivial: The Book Trailer

    Directory of Open Access Journals (Sweden)

    Kati Voigt

    2013-12-01

    Full Text Available Despite the introduction of audiobooks and e-books, printed stories still are in high demand. However, in a globalized world which is more and more ruled by mass media and technology, it is increasingly difficult for writers and publishers to promote their books. The solution is almost ironic: popular media, which is assumed to decrease readership, is turned into a tool to increase the number of readers. In 2002 the book trailer emerged as a new web-based marketing strategy for the launch of new books. Since then the appearance of the book trailer has changed considerably. The article examines specific examples and highlights methods that establish the relationship between the content of the book and its representation in the book trailer. Although guidelines apply for the production of book trailers, such as constraints relating to time and content, there are no limitations for the imagination of the producers. A book trailer may be simple, supported only by music and pictures, but they may also be as complex as short films. Additionally, book trailers are not limited to the promotion of one specific genre or age group. Depending on the viral potential of social networks such as YouTube, Facebook, and Tumblr book trailers reach a global audience and, therefore, open up new markets. It can be argued, while book trailers have not yet reached the realm of the everyday, they will gradually come to the attention of academics and this article wants to present a starting point for this development.

  10. Online Movie Trailers - A Reception Analysis

    OpenAIRE

    Jensen, Frida Videbæk; Rozé, Caroline

    2014-01-01

    This project is a reception analysis of how a target group receive online movie trailers. It utilized a focus group as means of research with participants from the dormitories Kollibrien and Korallen. We concluded that the group we investigated were not interested in online movie trailers as anything else than a preview of a movie. They preferred to experience movie trailers in the cinema. Their opinion of specific movie trailers were also determined by whether or not they identified with the...

  11. Trailer-targeting a potential audience

    OpenAIRE

    Brůnová, Lada

    2013-01-01

    How can movie production companies speak to their potential audience thru movie trailers? Which means do they use and what is the public reception? How does a viewer interpret a movie trailer? What can we learn about viewers from movie trailers? This thesis is offering all the answers to questions mentioned above in two different parts - in the first part the concepts of movie trailers are introduced and explained, the second part analyses the outcomes of a research which studies the affects ...

  12. System design description for portable 1,000 CFM exhauster Skids POR-007/Skid E and POR-008/Skid F

    International Nuclear Information System (INIS)

    Nelson, O.D.

    1998-01-01

    The primary purpose of the two 1,000 CFM Exhauster Skids, POR-007-SKID E and POR-008-SKID F, is to provide backup to the waste tank primary ventilation systems for tanks 241-C-106 and 241-AY-102, and the AY-102 annulus in the event of a failure during the sluicing of tank 241-C-106 and subsequent transfer of sluiced waste to 241-AY-102. This redundancy is required since both of the tank ventilation systems have been declared as Safety Class systems

  13. Productivity and cost estimators for conventional ground-based skidding on steep terrain using preplanned skid roads

    Science.gov (United States)

    Michael D. Erickson; Curt C. Hassler; Chris B. LeDoux

    1991-01-01

    Continuous time and motion study techniques were used to develop productivity and cost estimators for the skidding component of ground-based logging systems, operating on steep terrain using preplanned skid roads. Comparisons of productivity and costs were analyzed for an overland random access skidding method, verses a skidding method utilizing a network of preplanned...

  14. Rehabilitation of a secondary network of forest traffic infrastructure (skid roads - skid trails

    Directory of Open Access Journals (Sweden)

    Bajrić Muhamed

    2015-01-01

    Full Text Available Forest transport infrastructure is the key segment of rational forest resource management. One of its constituent and inseparable segments are skid roads and skid trails whose network density significantly exceeds the primary network, i.e. truck roads. Skid road -skid trail network density in high economic forests of FB&H is most often between 40 and 100 m/ha. Simplified way of construction, non-existence of road construction, objects for surface water drainage as well as significant longitudinal inclination (up to 50% in which they are constructed, makes them subject to erosion processes. The lack of rehabilitation measures on skid roads - skid trails causes significant damages in post-exploitation period, and very often to the extent that the ones in the following exploitation round are unusable for skidding. Utilization of skid roads - skid trails damaged by erosion processes for forest operations often represents a significant expense. This paper considers rehabilitation measures efficient from the point of remedying erosion processes, and at the same time, acceptable from the point of financial expenditure for forest operations.

  15. Changes in soil bulk density resulting from construction and conventional cable skidding using preplanned skid trails

    Science.gov (United States)

    Jingxin Wang; Chris B. LeDoux; Pam Edwards

    2007-01-01

    A harvesting system consisting of chainsaw felling and cable skidder extraction was studied to determine soil bulk density changes in a central Appalachian hardwood forest site. Soil bulk density was measured using a nuclear gauge preharvest and postharvest systematically across the harvest site, on transects across skid trails, and for a subset of skid trail transects...

  16. Calculation of skid resistance from texture measurements

    Directory of Open Access Journals (Sweden)

    Andreas Ueckermann

    2015-02-01

    Full Text Available There is a wide range of routine skid resistance measurement devices on the market. All of them are measuring the friction force between a rubber wheel and the wetted road surface. Common to all of them is that they are relatively complex and costly because generally a truck carrying a large water tank is needed to wet the surface with a defined water layer. Because of the limited amount of water they can carry they are limited in range. Besides that the measurement is depending on factors like water film thickness, temperature, measurement speed, rubber aging, rubber wear and even road evenness and curviness. All of these factors will affect the skid resistance and are difficult to control. We present a concept of contactless skid resistance measurement which is based on optical texture measurement and consists of two components: measurement of the pavement texture by means of an optical measuring system and calculation of the skid resistance based on the measured texture by means of a rubber friction model. The basic assumptions underlying the theoretical approach and the model itself based on the theory of Persson are presented. The concept is applied to a laboratory device called Wehner/Schulze (W/S machine to prove the theoretical approach. The results are very promising. A strong indication could be provided that skid resistance could be measured without contact in the future.

  17. Acceptance for Beneficial Use Pumping Instrumentation and Control Skid ''M''

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This document is a Final Acceptance for Beneficial Use (ABU) for the readiness of Pumping Instrumentation and Control (PIC) skid ''M''. All the testing and documentation for PIC skid ''M'' is completed and the skid is ready for use in the field for pumping of tank U-102

  18. A statistical description of the types and severities of accidents involving tractor semi-trailers

    International Nuclear Information System (INIS)

    Clauss, D.B.; Wilson, R.K.; Blower, D.F.; Campbell, K.L.

    1994-06-01

    This report provides a statistical description of the types and severities of tractor semi-trailer accidents involving at least one fatality. The data were developed for use in risk assessments of hazardous materials transportation. Several accident databases were reviewed to determine their suitability to the task. The TIFA (Trucks Involved in Fatal Accidents) database created at the University of Michigan Transportation Research Institute was extensively utilized. Supplementary data on collision and fire severity, which was not available in the TIFA database, were obtained by reviewing police reports for selected TIFA accidents. The results are described in terms of frequencies of different accident types and cumulative distribution functions for the peak contact velocity, rollover skid distance, fire temperature, fire size, fire separation, and fire duration

  19. Portable exhauster POR-007/Skid E and POR-008/Skid F storage plan

    International Nuclear Information System (INIS)

    Nelson, O.D.

    1998-01-01

    This document provides storage requirements for 1,000 CFM portable exhausters POR-O07/Skid E and POR-008/Skid F. These requirements are presented in three parts: preparation for storage, storage maintenance and testing, and retrieval from storage. The exhauster component identification numbers listed in this document contain the prefix POR-007 or POR-008 depending on which exhauster is being used

  20. Acceptance for Beneficial Use Pumping Instrumentation and Control Skid N

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This is a final Acceptance for Beneficial Use (ABU) for Pumping and Instrumentation Control (PIC) skid ''N''. PIC skid ''N'' is ready for pumping tank U-109. All the testing and documentation has been completed as required on the AE3U checklist. This AE3U covers only the readiness of the PIC skid ''N''. Other U-farm preparations including dilution tank fabrication, portable exhauster readiness, leak detection, valve pit preparation, and the Operation Control Station readiness are not part of this ABU. PIC skid ''N'' is a new skid fabricated and tested at Site Fabrication Services. The skid controls the jet pump and monitors various instruments associated with the pumping operation. This monitoring includes leak detection along the waste transfer route and flammable gases in the pump pit. This Acceptance for Beneficial Use documents that Pumping Instrumentation and Control (PIC) skid ''N'' is ready for field use. This document does not cover the field installation or operational testing

  1. Acceptance for Beneficial Use Pumping Instrumentation and Control Skid L

    International Nuclear Information System (INIS)

    KOCH, M.R.

    1999-01-01

    This is a final Acceptance for Beneficial Use (ABU) for Pumping and Instrumentation Control (PIC) skid ''L''. PIC skid ''L'' is ready for pumping tank U-105. All the testing and documentation has been completed as required on the ABU checklist. This ABU covers only the readiness of the PIC skid ''L''. Other U-farm preparations including dilution tank fabrication, portable exhauster readiness, leak detection, valve pit preparation, and the Operation Control Station readiness are not part of this ABU. PIC skid ''L'' is a new skid fabricated and tested at Site Fabrication Services. The skid controls the jet pump and monitors various instruments associated with the pumping operation. This monitoring includes leak detection along the waste transfer route and flammable gases in the pump pit

  2. Factory Acceptance Test Procedure Westinghouse 100 ton Hydraulic Trailer

    International Nuclear Information System (INIS)

    Aftanas, B.L.

    1994-01-01

    This Factory Acceptance Test Procedure (FAT) is for the Westinghouse 100 Ton Hydraulic Trailer. The trailer will be used for the removal of the 101-SY pump. This procedure includes: safety check and safety procedures; pre-operation check out; startup; leveling trailer; functional/proofload test; proofload testing; and rolling load test

  3. 49 CFR 238.413 - End structures of trailer cars.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false End structures of trailer cars. 238.413 Section... II Passenger Equipment § 238.413 End structures of trailer cars. (a) Except as provided in paragraph (b) of this section, the end structure of a trailer car shall be designed to include the following...

  4. Analysis of a fictive active e- trailer

    NARCIS (Netherlands)

    Gudo Ebbers; ir. F.G. Rieck; Steven Boonstra

    2017-01-01

    Trucks, consume an enormous amount of diesel annually and contribute greatly to the total CO2 emission around the world. Electrification of these freight vehicles will lead to reduction of fuel consumption and CO2 emission. Trailers as part of heavy freight vehicles are a great opportunity for

  5. Diesel generator trailer acceptance test procedure

    International Nuclear Information System (INIS)

    Kostelnik, A.J.

    1994-01-01

    This Acceptance Test Procedure (ATP) will document compliance with the requirements of WHC-S-0252 Rev. 1 and ECNs 609271, and 609272. The equipment being tested is a 150KW Diesel Generator mounted on a trailer with switchgear. The unit was purchased as a Design and Fabrication procurement activity. The ATP was written by the Seller and will be performed by the Seller with representatives of the Westinghouse Hanford Company witnessing the test at the Seller's location

  6. Breathing air trailer acceptance test report

    International Nuclear Information System (INIS)

    Kostelnik, A.J.

    1996-01-01

    This Acceptance Test Report documents compliance with the requirements of specification WHC-S-0251, Rev.0 and ECNs 613530 and 606113. The equipment was tested according to WHC-SD-WM-ATP-104. The equipment tested is a Breathing Air Supply Trailer purchased as a design and fabrication procurement activity. The ATP was written by the Seller and was performed by the Seller with representatives of the Westinghouse Hanford Company witnessing portions of the test at the Seller's location

  7. Using a constructive pavement texture index for skid resistance screening

    Directory of Open Access Journals (Sweden)

    Chia-Pei Chou

    2017-07-01

    Full Text Available Skid resistance measurement is one of the major measurements used to assess road safety. Typical devices used for measuring skid resistance include single point checking type and continuous measurements type. However, conducting periodic full roadway network skid resistance survey can be a relatively time consuming and difficult task because of the limited water carrying capacity used by all kinds of devices, including the continuous types. On the contrary, measurement of pavement surface texture can be conducted easily and continuously by most profilers. This research investigates the relation between pavement skid resistance and surface texture. The focus is on the development of a texture index that can serve as a screening indicator to filter out the high-risk pavement sections for further skid resistance measurement. Two measuring devices, GripTester (GT and National Taiwan University laser profiler (NTU Profiler, were used to collect data on pavement skid resistance and texture in a network of 555 sections, respectively. The pavement texture index of the mean difference of elevation (MDE is calculated at a 1 mm profile interval, which is a very promising indicator to represent pavement skid resistance. Through a sensitivity study, the MDE threshold of 0.15 mm is observed to provide a relatively reasonable screening function that filters out 29.01% of the entire surveyed network for further skid resistance inspection. It averted more than 70% skid resistance measurement capacity of the entire network. The accuracy of correct judgment by the selected threshold is about 80%, only 3.78% of roadway sections considered for further inspection of the recommended list are not included. Keywords: Skid resistance, Pavement texture, Macrotexture, Laser profiler, GripTester

  8. STRENGTH ANALYSIS OF THE FRAME OF A TRAILER

    Directory of Open Access Journals (Sweden)

    Silvia MEDVECKÁ-BEŇOVÁ

    2017-09-01

    Full Text Available A trailer for carrying a small boat or water scooters was designed for a private sector company. It was a category O1 non-braked trailer with a gross weight up to 750 kg and a height-adjustable traction device. The frame must be designed and installed in such a way that, during its proposed lifetime, it will withstand all the loads and influences that may occur during construction and operation with an appropriate level of reliability. The designed frame of the trailer is a welded galvanized structure. The article is devoted to the problems related to the stress analysis of a trailer frame.

  9. Skidding accidents : considerations on road surface and vehicle characteristics : summary of the present situation. Provisional recommendation concerning skidding resistance of road surfaces investigation programme. Interim report of the SWOV Working Group "Tyres, road surfaces and skidding accidents"

    NARCIS (Netherlands)

    SWOV Working Group "Tyres, road surfaces and skidding accidents"

    1970-01-01

    This is the first report of SWOV Working Group "Tyres, road surfaces and skidding accidents". Skidding is considered to be an important contributory factor in traffic accidents. Skidding can in principle be prevented in two ways, viz: (1) reduction of the minimum necessary friction, and (2)

  10. Radioisotope Thermoelectric Generator Transport Trailer System

    International Nuclear Information System (INIS)

    Ard, K.E.; King, D.A.; Leigh, H.; Satoh, J.A.

    1994-01-01

    The Radioisotope Thermoelectric Generator (RTG) Transportation System, designated as System 100, comprises four major systems. The four major systems are designated as the Packaging System (System 120), Trailer System (System 140), Operations and Ancillary Equipment System system 160), and Shipping and Receiving Facility Transport System (System 180). Packaging System (System 120), including the RTG packaging is licensed (regulatory) hardware; it is certified by the US Department of Energy to be in accordance with Title 10, Code of federal Regulations, Part 71 (10 CFR 71). System 140, System 160, and System 180 are nonlicensed (nonregulatory) hardware

  11. Mickey’s Trailer and Environmental Thought

    DEFF Research Database (Denmark)

    Goddard, Joseph

    2016-01-01

    International Park, which promotes motor-tourism and automobile ownership, and Ben Sharpsteen’s other work for Walt Disney. The article also examines the ideas of physical and “illusional” zoning in the city, especially the way that they were applied in the mid-twentieth century. Physical zoning involved...... separating incompatible land uses, whereas illusional zoning entailed seeing what you wanted to see. What does Mickey’s Trailer say about how people can live, and can it inform where people choose to live? The essay muses that appreciations of nature and the environment are influenced by popular culture....

  12. Configuration Management Plan for Long Length Contaminated Equipment Receiver and Transport Trailers

    International Nuclear Information System (INIS)

    DALE, R.N.

    2000-01-01

    Long Length Contaminated Equipment Removal System Receiver Trailer and Transport Trailer require a configuration management plan for design, requirements and operations baseline documents. This report serves as the plan for the Trailers

  13. Cost of skid roads for arch logging in West Virginia

    Science.gov (United States)

    George R., Jr. Trimble; Carl R. Barr

    1960-01-01

    In the mountain hardwood country of the northern Appalachians, tree-length skidding with tractor and arch has proved to be economical logging. One essential part of this type of logging is that tree-length logs are winched to the skid roads: tractor and arch do not run around through the woods. Winching distance is commonly 200 to 300 feet; and occasionally an extra...

  14. Cementitious artificial aggregate particles for high-skid resistance pavements

    OpenAIRE

    DE LARRARD, François; MARTINEZ CASTILLO, Rafael; SEDRAN, Thierry; HAUZA, Philippe; POIRIER, Jean Eric

    2012-01-01

    For some critical road sections, a high skid resistance of wearing course is required to minimise the risk of traffic accidents. Nowadays this skid resistance is mainly brought by the use of special aggregates as calcined bauxite, a scarce and expensive material. The paper presents a patented technology, where a special high-performance mortar is produced and crushed at early age. These cementitious artificial aggregates (CAA) can display aggregate properties close to those of calcined bauxit...

  15. Validation of asphalt mixture pavement skid prediction model and development of skid prediction model for surface treatments.

    Science.gov (United States)

    2017-04-01

    Pavement skid resistance is primarily a function of the surface texture, which includes both microtexture and macrotexture. Earlier, under the Texas Department of Transportation (TxDOT) Research Project 0-5627, the researchers developed a method to p...

  16. Long Length Contaminated Equipment Retrieval System Receiver Trailer and Transport Trailer Operations and Maintenance Manual

    International Nuclear Information System (INIS)

    DALE, R.N.

    2000-01-01

    A system to accommodate the removal of long-length contaminated equipment (LLCE) from Hanford underground radioactive waste storage tanks was designed, procured, and demonstrated, via a project activity during the 1990s. The system is the Long Length Contaminated Equipment Removal System (LLCERS). LLCERS will be maintained and operated by Tank Farms Engineering and Operations organizations and other varied projects having a need for the system. The responsibility for the operation and maintenance of the LLCERS Receiver Trailer (RT) and Transport Trailer (TT) resides with the RPP Characterization Project Operations organization. The purpose of this document is to provide vendor supplied operating and maintenance (O and M) information for the RT and TT in a readily retrievable form. This information is provided this way instead of in a vendor information (VI) file to maintain configuration control of the operations baseline as described in RPP-6085, ''Configuration Management Plan for Long Length Contaminated Equipment Receiver and Transport Trailers''. Additional Operations Baseline documents are identified in RPP-6085

  17. Long Length Contaminated Equipment Retrieval System Receiver Trailer and Transport Trailer Operations and Maintenance Manual

    Energy Technology Data Exchange (ETDEWEB)

    DALE, R.N.

    2000-05-01

    A system to accommodate the removal of long-length contaminated equipment (LLCE) from Hanford underground radioactive waste storage tanks was designed, procured, and demonstrated, via a project activity during the 1990s. The system is the Long Length Contaminated Equipment Removal System (LLCERS). LLCERS will be maintained and operated by Tank Farms Engineering and Operations organizations and other varied projects having a need for the system. The responsibility for the operation and maintenance of the LLCERS Receiver Trailer (RT) and Transport Trailer (TT) resides with the RPP Characterization Project Operations organization. The purpose of this document is to provide vendor supplied operating and maintenance (O & M) information for the RT and TT in a readily retrievable form. This information is provided this way instead of in a vendor information (VI) file to maintain configuration control of the operations baseline as described in RPP-6085, ''Configuration Management Plan for Long Length Contaminated Equipment Receiver and Transport Trailers''. Additional Operations Baseline documents are identified in RPP-6085.

  18. Korelasi Skid Resistance dengan Kedalaman Tekstur pada Permukaan Perkerasan Lentur

    Directory of Open Access Journals (Sweden)

    Indra Jaya Pandia

    2016-12-01

    Full Text Available Skid Resistance is the force generated between the pavement surface and vehicle’s tires to resist the vehicle advance motion when braking. In this research the correlation between skid resistance value and texture depth on the pavement surface will be determined. The skid resistance value determined by using the British Pendulum Tester (BPT and to determine the texture depth used Sand Patch Method. The research is conducted directly on a macro textured surface with two methods. The first method is applied on Ngumban Surbakti Road where the samples tested with the same distance from the edge of the pavement along the road; The second method is applied on Jend. Sudirman Road where the samples tested with specific distances from the edge of the pavement until the median. From the results of the analysis, there are some conclusions: (1 there is a positive correlation between the texture depth and skid resistance with a coefficient of determination (R2 = 0.028 on Ngumban Surbakti Road and (R2 = 0.191 on  Jend. Sudirman Road;(2 the increase of skid resistance value is directly proportional to the increase of surface texture depth value; and (3 the different methods did not cause significant yield differences.

  19. Acceptance test report for the Westinghouse 100 ton hydraulic trailer

    International Nuclear Information System (INIS)

    Barrett, R.A.

    1995-01-01

    The SY-101 Equipment Removal System 100 Ton Hydraulic Trailer was designed and built by KAMP Systems, Inc. Performance of the Acceptance Test Procedure at KAMP's facility in Ontario, California (termed Phase 1 in this report) was interrupted by discrepancies noted with the main hydraulic cylinder. The main cylinder was removed and sent to REMCO for repair while the trailer was sent to Lampson's facility in Pasco, Washington. The Acceptance Test Procedure was modified and performance resumed at Lampson (termed Phase 2 in this report) after receipt of the repaired cylinder. At the successful conclusion of Phase 2 testing the trailer was accepted as meeting all the performance criteria specified

  20. Acceptance Test Procedure for New Pumping and Instrumentation Control Skid L

    International Nuclear Information System (INIS)

    KOCH, M.R.

    1999-01-01

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping and Instrumentation Control (PIC) skid designed as ''L''. The ATP will be performed after the construction of the PIC skid in the shop

  1. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid ''P''

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''P''. The ATP will be performed after the construction of the PIC skid in the fabrication shop

  2. Acceptance Test Procedure for New Pumping and Instrumentation Control Skid N

    International Nuclear Information System (INIS)

    KOCH, M.R.

    1999-01-01

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping and Instrumentation Control (PIC) skid designed as ''N''. The ATP will be performed after the construction of the PIC skid in the shop

  3. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid W

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''W''. The ATP will be performed after the construction of the PIC skid in the fabrication shop

  4. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid V

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control. (PIC) skid designed as ''V''. The ATP will be performed after the construction of the PIC skid in the fabrication shop

  5. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid ''V''

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designated as ''V''. The ATP will be performed after the construction of the PIC skid in the fabrication shop

  6. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid ''Q''

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''Q''. The ATP will be performed after the construction of the PIC skid in the fabrication shop

  7. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid ''T''

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designated as ''T''. The ATP will be performed after the construction of the PIC skid in the fabrication shop

  8. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid T

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This Acceptance Test Procedure (ATP) provides for the inspection and testing Of the new Pumping Instrumentation and Control (PIC) skid designed as ''T''. The ATP will be performed after the construction of the PIC skid in the fabrication shop

  9. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid R

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''R''. The ATP will be performed after the construction of the PIC skid in the fabrication shop

  10. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid ''U''

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''U''. The ATP will be performed after the construction of the PIC skid in the fabrication shop

  11. A decision algorithm for determining safe clearing limits for the construction of skid roads

    Science.gov (United States)

    Chris LeDoux

    2006-01-01

    The majority of the timber harvested in the United States is extracted by ground-based skidders and crawler/dozer systems. Ground-based systems generally require a primary transportation network (a network of skid trails/roads) throughout the area being harvested. Logs are skidded or dragged along these skid roads/trails as they are transported from where they were cut...

  12. X-Ray imager power source on distribution trailers

    International Nuclear Information System (INIS)

    Johns, B.R.

    1996-01-01

    This Acceptance for Beneficial Use documents the work completed on the addition of an X-ray cable reel on distribution trailer HO-64-3533 for core sampling equipment. Work and documentation remaining to be completed is identified

  13. Compressed air piping, 241-SY-101 hydraulic pump retrieval trailer

    International Nuclear Information System (INIS)

    Wilson, T.R.

    1994-01-01

    The following Design Analysis was prepared by the Westinghouse Hanford Company to determine pressure losses in the compressed air piping installed on the hydraulic trailer for the 241-SY-101 pump retrieval mission

  14. Audience reaction movie trailers and the Paranormal Activity franchise

    OpenAIRE

    Alexander Swanson

    2015-01-01

    This article addresses the concept and growing practice of audience reaction movie trailers, specifically for films in the horror genre. Popularized by the Paranormal Activity series of films, these trailers primarily utilize green night-vision video footage of a movie theater audience reacting to the film being advertised, yet also consist of webcam recordings of screaming fans, documentary-style B-roll footage of audiences filing into preview screenings with high levels of anticipation, and...

  15. Skidding with horses to thin young stands in western Washington.

    Science.gov (United States)

    Norman P. Worthington

    1957-01-01

    Increased use of commercial thinning to provide an additional source of needed raw material and to boost overall yields from forest lands has again brought horses into the northwest woods. They are particularly well adapted to skidding small logs under the light, frequent cuts typical of a thinning operation. Horses can, moreover, work at close quarters in a young...

  16. Acceptance test report for the Westinghouse 100 ton hydraulic trailer

    Energy Technology Data Exchange (ETDEWEB)

    Barrett, R.A.

    1995-03-06

    The SY-101 Equipment Removal System 100 Ton Hydraulic Trailer was designed and built by KAMP Systems, Inc. Performance of the Acceptance Test Procedure at KAMP`s facility in Ontario, California (termed Phase 1 in this report) was interrupted by discrepancies noted with the main hydraulic cylinder. The main cylinder was removed and sent to REMCO for repair while the trailer was sent to Lampson`s facility in Pasco, Washington. The Acceptance Test Procedure was modified and performance resumed at Lampson (termed Phase 2 in this report) after receipt of the repaired cylinder. At the successful conclusion of Phase 2 testing the trailer was accepted as meeting all the performance criteria specified.

  17. Fixing Trailer Hitch for Roof Rack of Cargos

    Directory of Open Access Journals (Sweden)

    Darina Matisková

    2017-02-01

    Full Text Available This article presents a new technical solution of fixing trailer hitch which serves as a connection between single track vehicle and cargo, mainly light trailer. They are manufactured from steel girder and nets which are constructed by point welding. They are designed to indicate the necessary solidity and the required load bearing capacity of the cargo. The application of roof racks is universal and these products are in great demand in the field of game management. There are a lot of trailer hitches which the manufacturers tailor to customers´ demands. The stated technical solution is subject of published industrial utility model at the Industrial property office of the Slovak republic.

  18. Proposal of a segmentation procedure for skid resistance data

    International Nuclear Information System (INIS)

    Tejeda, S. V.; Tampier, Hernan de Solominihac; Navarro, T.E.

    2008-01-01

    Skin resistance of pavements presents a high spatial variability along a road. This pavement characteristic is directly related to wet weather accidents; therefore, it is important to identify and characterize the skid resistance of homogeneous segments along a road in order to implement proper road safety management. Several data segmentation methods have been applied to other pavement characteristics (e.g. roughness). However, no application to skin resistance data was found during the literature review for this study. Typical segmentation methods are rather too general or too specific to ensure a detailed segmentation of skid resistance data, which can be used for managing pavement performance. The main objective of this paper is to propose a procedure for segmenting skid resistance data, based on existing data segmentation methods. The procedure needs to be efficient and to fulfill road management requirements. The proposed procedure considers the Leverage method to identify outlier data, the CUSUM method to accomplish initial data segmentation and a statistical method to group consecutive segments that are statistically similar. The statistical method applies the Student's t-test of mean equities, along with analysis of variance and the Tuckey test for the multiple comparison of means. The proposed procedure was applied to a sample of skid resistance data measured with SCRIM (Side Force Coefficient Routine Investigatory Machine) on a 4.2 km section of Chilean road and was compared to conventional segmentation methods. Results showed that the proposed procedure is more efficient than the conventional segmentation procedures, achieving the minimum weighted sum of square errors (SSEp) with all the identified segments statistically different. Due to its mathematical basis, proposed procedure can be easily adapted and programmed for use in road safety management. (author)

  19. Durability testing of the high-capacity GA-4/GA-9 trailer

    International Nuclear Information System (INIS)

    Zimmer, A.; Lyon, T.

    1995-01-01

    GA designed trailers to transport the GA-4 and GA-9 LWT from-reactor spent nuclear fuel shipping casks. GA designed and fabricated the GA-9 trailer to ANSI N14.30 requirements and is now performing a durability test at the AlliedSignal Automotive Proving Grounds. The trailer, simulated cask and tractor. The test program objective is to evaluate and improve, as necessary, the trailer's durability, reliability and performance

  20. The Skid Resistance Evaluation on the Longterm Monitored Road Sections

    Directory of Open Access Journals (Sweden)

    Kotek Peter

    2014-12-01

    Full Text Available The article deals with the analysis of the skid resistance results measured at the long-term monitored road sections in Slovakia in perspective of the possibility of the deterioration functions determination for the purposes of the pavement management system. There were 11 road sections evaluated, on which have been surface characteristics measured since 1998. The focus was on the evaluation of the longitudinal friction coefficient Mu measured by device Skiddometer BV11, which is the property of the Slovak Road Administration. Beside the Mu parameter, the test conditions were observed and evaluated, as well (measured speed, air and surface temperature, type of asphalts of the wearing course, traffic load, and the season (spring, autumn, respectively in which the skid resistance measurements were performed. In conclusion, there was reviewed a presumption of the possibility to determine a deterioration functions for skid resistance in point of view the quality of the data, which have been collected on the Slovak long-term monitored road sections.

  1. SmartWay Mark Signature Page: Tractors & Trailers

    Science.gov (United States)

    This SmartWay agreement is for companies and organizations who wish to comply with the SmartWay Graphic Standards and Usage Guide guidelines and requirements for using the SmartWay logos on SmartWay designated Tractors and Trailers.

  2. A New Skid Trail Pattern Design for Farm Tractors Using Linear Programing and Geographical Information Systems

    Directory of Open Access Journals (Sweden)

    Selcuk Gumus

    2016-12-01

    Full Text Available Farm tractor skidding is one of the common methods of timber extraction in Turkey. However, the absence of an optimal skidding plan covering the entire production area can result in time loss and negative environmental impacts. In this study, the timber extraction by farm tractors was analyzed, and a new skid trail pattern design was developed using Linear Programming (LP and Geographical Information Systems (GIS. First, a sample skidding operation was evaluated with a time study, and an optimum skidding model was generated with LP. Then, the new skidding pattern was developed by an optimum skidding model and GIS analysis. At the end of the study, the developed new skid trail pattern was implemented in the study area and tested by running a time study. Using the newly developed “Direct Skid Trail Pattern (DSTP” model, a 16.84% increase in working time performance was observed when the products were extracted by farm tractors compared to the existing practices. On the other hand, the average soil compaction value measured in the study area at depths of 0–5 cm and 5–10 cm was found to be greater in the sample area skid trails than in the control points. The average density of the skid trails was 281 m/ha, while it decreased to 187 m/ha by using the developed pattern. It was also found that 44,829 ton/ha of soil losses were prevented by using the DSTP model; therefore, environmental damages were decreased.

  3. Skid resistance determination for pavement management and wet-weather road safety

    Directory of Open Access Journals (Sweden)

    T.F. Fwa

    2017-09-01

    Full Text Available Road accidents during wet weather have been a topic of major concern of road engineers in regions of wet-tropical climate and in other parts of the world during the wet season of the year. Road safety studies indicate that approximately 20% of all road accidents occurred during wet weather, and that the skid resistance of wet pavements have a major influence on the occurrences of wet-weather accidents. Monitoring of wet pavement skid resistance has been an integral part of a typical pavement management system. However, because of the lack of prediction capability of pavement skid resistance under various rainfall intensities, the minimum skid resistance threshold for safe wet-weather driving has been specified by highway agencies based on either engineering judgement or past experience. It is shown in this paper that the single-point minimum skid resistance threshold is inadequate to offer a complete description of the skid resistance performance of the pavement sections in question for effective management of a road network. It is unable to assess the risk involved in an actual wet-weather condition where the pavement surface water-film thickness and vehicle speed are different from standard test conditions. This limitation of the current system of specifying a minimum skid resistance threshold can be overcome by adopting a theoretically sound approach to represent pavement skid resistance under different conditions of water-film thickness and vehicle speed. This paper describes the theoretical basis of the approach and the development of a mechanistically derived three-dimensional finite-element skid resistance simulation model to predict skid resistance. The application of the proposed approach and the skid resistance prediction procedure in pavement management system and wet-weather driving safety assessment is presented.

  4. Fake and fan film trailers as incarnations of audience anticipation and desire

    Directory of Open Access Journals (Sweden)

    Kathleen Amy Williams

    2012-03-01

    Full Text Available In the lead-up to the release of some feature films, fake and fan trailers are created by users and uploaded to YouTube and other Web sites. These trailers demonstrate that users are literate not only in the form of the trailer itself, but also in the Hollywood system and how it markets products to audiences. Circulating in a networked environment online, these texts, which play with the form of the trailer, perform and embody users' and fans' desire to see not just the feature film but also the official trailer itself. I discuss these fake and fan trailers in relation to cinematic anticipation and describe how they navigate both spatial and temporal bounds. Using the architectural concept of the desire line, I argue that spatial frameworks can be usefully employed to consider how users navigate online spaces, media, and concepts through the form of the trailer.

  5. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid ''P''

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This Test Plan provides a test method to dedicate the leak detection relays used on the new Pumping Instrumentation and Control (PIC) skids. The new skids are fabricated on-site. The leak detection system is a safety class system per the Authorization Basis

  6. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid Q

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This Test Plan provides a test method to dedicate the leak detection relays used on the new Pumping Instrumentation and Control (PIC) skids. The new skids are fabricated on-site. The leak detection system is a safety class system per the Authorization Basis

  7. Acceptance Test Procedure for New Pumping and Instrumentation Control Skid M

    International Nuclear Information System (INIS)

    KOCH, M.R.

    1999-01-01

    This Acceptance Test Procedure (ATP) verifies proper construction per the design drawings and tests for proper functioning of the Pumping and Instrumentation Control (PIC) skid ''M''. The Scope section lists the systems and functions to be checked. This ATP will be performed at the Site Fabrication Service's (SFS) shop upon completion of construction of the PIC skid

  8. Acceptance Test Procedure for New Pumping Instrumentation and Control Skid ''V''

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This Acceptance Test Procedure (ATP) verifies proper construction per the design drawings and tests for proper functioning of the Pumping Instrumentation and Control (PIC) skid ''V''. The scope section lists the systems and functions to be checked. This ATP will be performed at the Site Fabrication Services (SFS) shop upon completion of the construction of the PIC skid

  9. Tyre induced vibrations of the car-trailer system

    Science.gov (United States)

    Beregi, S.; Takács, D.; Stépán, G.

    2016-02-01

    The lateral and yaw dynamics of the car-trailer combination are analysed by means of a single track model. The equations of motion are derived rigorously by means of the Appell-Gibbs equations for constant longitudinal velocity of the vehicle. The tyres are described with the help of the so-called delayed tyre model, which is based on a brush model with pure rolling contact. The lateral forces and aligning torques of the tyre/road interaction are calculated via the instantaneous lateral deformations in the contact patches. The linear stability analysis of the rectilinear motion is performed via the analytically determined characteristic function of the system. Stability charts are constructed with respect to the vehicle longitudinal velocity and the payload position on the trailer. Self-excited lateral vibrations are detected with different vibration modes at low and at high longitudinal speeds of the vehicle. The effects of the tyre parameters are also investigated.

  10. Audience reaction movie trailers and the Paranormal Activity franchise

    Directory of Open Access Journals (Sweden)

    Alexander Swanson

    2015-03-01

    Full Text Available This article addresses the concept and growing practice of audience reaction movie trailers, specifically for films in the horror genre. Popularized by the Paranormal Activity series of films, these trailers primarily utilize green night-vision video footage of a movie theater audience reacting to the film being advertised, yet also consist of webcam recordings of screaming fans, documentary-style B-roll footage of audiences filing into preview screenings with high levels of anticipation, and close-up shots of spectator facial expressions, accompanied by no footage whatsoever from the film being advertised. In analyzing these audience-centric promotional paratexts, my aim is to reveal them as attempting to sell and legitimize the experiential, communal, and social qualities of the theatrical movie viewing experience while at the same time calling for increased fan investment in both physical and online spaces. Through the analysis of audience reaction trailers, this article hopes to both join and engender conversations about horror fan participation, the nature of anticipatory texts as manipulative, and the current state of horror gimmickry in the form of the promotional paratext.

  11. Reversing Control of a Car with a Trailer Using the Driver Assistance System

    Directory of Open Access Journals (Sweden)

    Jae Il Roh

    2011-06-01

    Full Text Available Passive trailer systems provide a variety of advantages in delivery and transportation applications. The transportation capacity of the truck with multiple trailers can be increased in proportion to the number of trailers. The cost of the car with trailers is much lower than the cost of multiple cars. However, the major drawback of the trailer system is that the control problem is difficult. We concentrate on the motion control problem of ʺpushingʺ trailers because pushing is much more difficult than ʺpullingʺ. In this paper, it is shown how the car with passive trailers can be easily controlled by the use of the proposed driver assist system and the motion control scheme. Since the keypad is the only additional device for the driver assist system, the proposed scheme can be implemented with the conventional trucks without many hardware modifications. The manual control strategy of pushing is established. The kinematic design of the passive trailer is adopted from the prior work (Park and Chung, 2004. The kinematic configuration design of the car with trailers is proposed for pushing control. The usefulness of the proposed scheme is experimentally verified with the small scale car with trailer system for the car parking problem. The parking control requires forward and reverse motion in narrow environment. It is shown that even beginners can easily control the pushing motion with the proposed scheme.

  12. Reversing Control of a Car with a Trailer Using the Driver Assistance System

    Directory of Open Access Journals (Sweden)

    Jae Roh

    2011-06-01

    Full Text Available Passive trailer systems provide a variety of advantages in delivery and transportation applications. The transportation capacity of the truck with multiple trailers can be increased in proportion to the number of trailers. The cost of the car with trailers is much lower than the cost of multiple cars. However, the major drawback of the trailer system is that the control problem is difficult. We concentrate on the motion control problem of “pushing” trailers because pushing is much more difficult than “pulling”. In this paper, it is shown how the car with passive trailers can be easily controlled by the use of the proposed driver assist system and the motion control scheme. Since the keypad is the only additional device for the driver assist system, the proposed scheme can be implemented with the conventional trucks without many hardware modifications. The manual control strategy of pushing is established. The kinematic design of the passive trailer is adopted from the prior work (Park and Chung, 2004. The kinematic configuration design of the car with trailers is proposed for pushing control. The usefulness of the proposed scheme is experimentally verified with the small scale car with trailer system for the car parking problem. The parking control requires forward and reverse motion in narrow environment. It is shown that even beginners can easily control the pushing motion with the proposed scheme.

  13. PLC and DTAM Software Programs for Pumping Instrumentation and Control Skid N

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This document describe the software programs for the Programmable Logic Controller and the Datable Access Module for Pumping Instrumentation and Control skid ''N''. The Appendices contains copies of the printouts of these software programs. This document describes the software programs for the Allen-Bradley SLC 500 programmable logic controller (PLC) and the Allen-Bradley DTAM PLUS operator interface module used on Pumping Instrumentation and Control (PIC) skid ''N''. The software programs for the SLC 500 and DTAM Plus are based on the core programs provided by Allen-Bradley. The PLC and DTAM software programs on skid ''D'' for SX-104 are the baseline programs. These baselines have been tailored for U-farm skids. The skid ''N'' program for U-109 is similar to the skid ''M'' program for U-102. An Acceptance Test Procedure (ATP) and an Operational Test Procedure (OTP) verify that the software programs meet the specific requirements for U-109 pumping. This document represents the final PLC and DTAM programs for PIC skid ''N'' at U-109. These programs were printed out after the performance of the OTP. The OTP acts as the final qualification test for the software programs. Functional requirements and details of the PLC ladder logic are described in this document. The final programs entered into the PLC and DTAM Plus are included as Appendices to this document

  14. Towards a typology of video game trailers: Between the ludic and the cinematic

    OpenAIRE

    Jan Švelch

    2015-01-01

    This paper explores video game trailers, their various forms and the roles they play within video game industry and culture. It offers an overview of the current practice of video game trailer differentiation and proposes a new typology of video game trailers based on their relation to ludic and cinematic aspects of a video game, combining the theory of paratexts, video game performance framework, the interface effect concept, as well as the concept of transmedia storytelling. This typology r...

  15. Towards a typology of video game trailers: Between the ludic and the cinematic

    Directory of Open Access Journals (Sweden)

    Jan Švelch

    2015-09-01

    Full Text Available This paper explores video game trailers, their various forms and the roles they play within video game industry and culture. It offers an overview of the current practice of video game trailer differentiation and proposes a new typology of video game trailers based on their relation to ludic and cinematic aspects of a video game, combining the theory of paratexts, video game performance framework, the interface effect concept, as well as the concept of transmedia storytelling. This typology reflects the historical evolution of a video game trailer and also takes into account current trends in the audiovisual paratexts of video games.

  16. Incidence of Trailer Frame Structure on Driver’s Safety during Log Transportation

    Directory of Open Access Journals (Sweden)

    Marco Manzone

    2017-11-01

    Full Text Available The frame structure of the trailer may influence both the traction and the tractor-trailer stability, especially along sloped paths. The aim of this research was to analyze a trailer overturning and the strains on the connected tractors (wheeled, or crawled during log transportation (loose or tied along a hillside. Two two-axle trailers were used: tandem and turntable steering. Three types of measurements were carried out during the field tests: (i the detachment from the ground of the rear upstream wheels (or crawler; (ii the transversal and longitudinal strains occurring when the trailer overturned (and released the hooking system of the tractor; (iii the lateral deviation of the rear wheels (or crawler of the tractor. The study highlighted that the two-axle trailer with turntable steering combined with the crawl tractor gave better results in terms of safety during trailer overturning. In addition, independent of the type of trailer, a tied load was found to be more dangerous than a load restrained only by steel struts, because when overturning, the load forms a single unit with the trailer mass which increases the strains.

  17. Sediment pathways in a tropical forest: effects of logging roads and skid trails

    Science.gov (United States)

    Sidle, Roy C.; Sasaki, Shozo; Otsuki, Mieko; Noguchi, Shoji; Rahim Nik, Abdul

    2004-03-01

    Significant erosion occurred from recently constructed forest logging roads and skid trails in a small headwater catchment in Peninsular Malaysia. Soil loss was estimated by measuring dimensions of all significant rills and gullies along the road, as well as by measuring height of preserved soil pedestals in sidecast and fill material and on skid trails. Estimates of surface erosion from logging roads and skid trails were 272 +/- 20 t ha-1 year-1 and 275 +/- 20 t ha-1 year-1 respectively. However, owing to lack of connectivity of skid trails to the stream, much of the sediment mobilized on skid trails was stored either on adjacent hillslopes or the trails themselves, rather than being transported to the stream system, as was the case for the road. Steeper skid trails (>20% gradient) had slightly higher erosion rates (320 +/- 24 t ha-1 year-1) than trails with gentler gradients (245-264 t ha-1 year-1). Some 60% of the soil loss on logging roads comes from erosion of the running surface. Disturbed cut and fill material along the road supplied the remaining 40% of the soil loss from roads. Roads and skid trails had no designed drainage systems; runoff discharged onto the hillslope at 25 major discharge nodes from the logging road (690 m total length) and at 34 nodes from skid trails (2300 m). Sediment pathways were either fully or moderately connected to headwater channels at 64% of the logging road nodes, but at only 26% of the nodes emanating from skid trails. A detailed sediment budget revealed that 78% of the soil loss from the road system (including log landings) was delivered to the stream in the first 16 months after logging began. Most (90%) of the deposition from skid trails occurred below just three discharge nodes. Runoff from and onto skid trails often exacerbated the sediment connectivity to channels. Clearly, sediment discharge from logging roads was more highly connected to the stream than discharge from skid trails. Once in the channel, much of this

  18. Acceptance test report for portable exhauster POR-007/Skid E

    International Nuclear Information System (INIS)

    Kriskovich, J.R.

    1998-01-01

    This document describes Acceptance Testing performed on Portable Exhauster POR-007/Skid E. It includes measurements of bearing vibration levels, pressure decay testing, programmable logic controller interlocks, high vacuum, flow and pressure control functional testing. The purpose of Acceptance testing documented by this report was to demonstrate compliance of the exhausters with the performance criteria established within HNF-0490, Rev. 1 following a repair and upgrade effort at Hanford. In addition, data obtained during this testing is required for the resolution of outstanding Non-conformance Reports (NCR), and finally, to demonstrate the functionality of the associated software for the pressure control and high vacuum exhauster operating modes provided for by W-320. Additional testing not required by the ATP was also performed to assist in the disposition and close out of receiving inspection report and for application design information (system curve). Results of this testing are also captured within this document

  19. DYNAMICS BASED CONTROL OF A SKID STEERING MOBILE ROBOT

    Directory of Open Access Journals (Sweden)

    Osama Elshazly

    2016-06-01

    Full Text Available In this paper, development of a reduced order, augmented dynamics-drive model that combines both the dynamics and drive subsystems of the skid steering mobile robot (SSMR is presented. A Linear Quadratic Regulator (LQR control algorithm with feed-forward compensation of the disturbances part included in the reduced order augmented dynamics-drive model is designed. The proposed controller has many advantages such as its simplicity in terms of design and implementation in comparison with complex nonlinear control schemes that are usually designed for this system. Moreover, the good performance is also provided by the controller for the SSMR comparable with a nonlinear controller based on the inverse dynamics which depends on the availability of an accurate model describing the system. Simulation results illustrate the effectiveness and enhancement provided by the proposed controller.

  20. PLC and DTAM Software Programs for Pumping Instrumentation and Control Skid ''M''

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This document describes the software programs for the Programmable Logic Controller and the Data Table Access Module for Pumping Instrumentation and Control skid ''M''. The Appendices contains copies of the printouts of these software programs

  1. PLC and DTAM Software Programs for Pumping Instrumentation and Control Skid P

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This document describe the software programs for the Programmable Logic Controller and the Datable Access Module for Pumping Instrumentation and Control skid ''P''. The Appendices contains copies of the printouts of these software programs

  2. PLC and DTAM Software Programs for Pumping Instrumentation and Control Skid M

    Energy Technology Data Exchange (ETDEWEB)

    KOCH, M.R.

    2000-02-14

    This document describes the software programs for the Programmable Logic Controller and the Data Table Access Module for Pumping Instrumentation and Control skid ''M''. The Appendices contains copies of the printouts of these software programs.

  3. PLC/DTAM Software Programs for Pumping Instrumentation and Control Skid L

    Energy Technology Data Exchange (ETDEWEB)

    KOCH, M.R.

    2000-01-03

    This document describes the software programs for the Programmable Logic Controller and the Data Table Access Module for Pumping Instrumentation and Control skid ''L''. The Appendices contains copies of the printouts of these software programs.

  4. PLC/DTAM Software Programs for Pumping Instrumentation and Control Skid ''L''

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This document describes the software programs for the Programmable Logic Controller and the Data Table Access Module for Pumping Instrumentation and Control skid ''L''. The Appendices contains copies of the printouts of these software programs

  5. Skid row alcoholism--an objective definition for use in detoxification and treatment planning.

    Science.gov (United States)

    Halikas, J A; Lyttle, M D; Morse, C L

    1984-05-01

    Objective criteria were used to separate skid row alcoholics from others in a public detoxification program. The two groups thus formed were found to have different characteristics, which could lead to more individualized and effective treatment planning in such settings.

  6. Advertising Citizen Science: A Trailer for the Citizen Sky Project

    Science.gov (United States)

    Wyatt, Ryan; Price, A.

    2012-01-01

    Citizen Sky is a multi-year, NSF funded citizen science project involving the bright and mysterious variable star epsilon Aurigae. The project was conceived by the IYA 2009 working group on Research Experiences for Students, Teachers, and Citizen-Scientists. Citizen Sky goes beyond simple observing to include a major data analysis component, introducing participants to the full scientific process from background research to paper writing for a peer-reviewed journal. As a means of generating interest in the project, the California Academy of Sciences produced a six-minute "trailer” formatted for both traditional and fulldome planetariums as well as HD and web applications. This talk will review the production process for the trailer as well as the methods of distribution via planetariums, social media, and other venues_along with an update on the Citizen Sky Project as a whole. We will show how to use a small, professionally-produced planetarium trailer to help spread word on a citizen science project. We will also show preliminary results on a study about how participation level/type in the project affects science learning.

  7. Establishing Trailer Ventilation (Boarding) Requirements for Finishing Pigs during Transport.

    Science.gov (United States)

    McGlone, John; Sapkota, Avi; Johnson, Anna; Kephart, Rebecca

    2014-08-19

    Specifically, this study aimed to establish the effects on mortality and morbidity of boarding levels (amount of side-wall trailer ventilation) for finishing pigs in mild weather (8.80 ± 0.30 °C, 71.70% ± 1.12% humidity). Pigs from commercial finishing sites were transported in 302 pot-bellied trailers to commercial processing plants. Measures collected at the processing plant were rates of dead on arrival (DOA), non-ambulatory, non-injured (NANI), non-ambulatory, injured (NAI), and total dead and down (D&D). Boarding levels (% that side walls were closed off with inserted boards) were divided into 3 bins: low, medium, and high, and outside temperature was divided into 4 bins 15 °C. Average rates of DOA, NANI, NAI, and D&D were approximately 0.30%, 0.12%, 0.04%, and 0.46%, respectively. The D&D was highest when boarding level was low with temperatures boarding level (medium and high boarding) in the temperature range of 5.10 °C to 23.30 °C did not affect pig losses.

  8. Design and energetical feasibility study of a refrigerated trailer with photovoltaic solar energy; Diseno y estudio de viabilidad energetica de un trailer refrigerado mediante energia solar fotovoltaica

    Energy Technology Data Exchange (ETDEWEB)

    Callen, S.; Ibanez, M.; Cabeza, L. F.

    2004-07-01

    In this study we have tried to show the energetic viability and the design of a refrigerated trailer, in which it has changed the traditional oil generator from the refrigeration system to a photovoltaic generator. Due to restrictions of design limited by trailer dimensions and the horizontal positions of modules, as one of the first conclusion has been necessary to reduce the refrigeration charge, to obtain the necessary energy savings to have technical viability of the project. The propositions to get the energy savings are to improve the thermal insulation of the trailer and to limit the kind and amount of products to transport. Finally, to apply the technology of solar refrigeration in the cooling unit of the trailer to optimise its performance. (Author)

  9. Generation of urban road dust from anti-skid and asphalt concrete aggregates.

    Science.gov (United States)

    Tervahattu, Heikki; Kupiainen, Kaarle J; Räisänen, Mika; Mäkelä, Timo; Hillamo, Risto

    2006-04-30

    Road dust forms an important component of airborne particulate matter in urban areas. In many winter cities the use of anti-skid aggregates and studded tires enhance the generation of mineral particles. The abrasion particles dominate the PM10 during springtime when the material deposited in snow is resuspended. This paper summarizes the results from three test series performed in a test facility to assess the factors that affect the generation of abrasion components of road dust. Concentrations, mass size distribution and composition of the particles were studied. Over 90% of the particles were aluminosilicates from either anti-skid or asphalt concrete aggregates. Mineral particles were observed mainly in the PM10 fraction, the fine fraction being 12% and submicron size being 6% of PM10 mass. The PM10 concentrations increased as a function of the amount of anti-skid aggregate dispersed. The use of anti-skid aggregate increased substantially the amount of PM10 originated from the asphalt concrete. It was concluded that anti-skid aggregate grains contribute to pavement wear. The particle size distribution of the anti-skid aggregates had great impact on PM10 emissions which were additionally enhanced by studded tires, modal composition, and texture of anti-skid aggregates. The results emphasize the interaction of tires, anti-skid aggregate, and asphalt concrete pavement in the production of dust emissions. They all must be taken into account when measures to reduce road dust are considered. The winter maintenance and springtime cleaning must be performed properly with methods which are efficient in reducing PM10 dust.

  10. Protecting the Home and Adequate Housing - Living in a Caravan or Trailer as a Human Right

    NARCIS (Netherlands)

    Donders, Y.

    2016-01-01

    Many Roma, gypsies and travellers live in caravans or trailers, sometimes in together trailer parks or camps. This article analyses how this specific lifestyle connected to their housing is protected under the various regimes and provisions of international human rights law. Home and adequate

  11. Cigarette smoking and perception of a movie character in a film trailer.

    Science.gov (United States)

    Hanewinkel, Reiner

    2009-01-01

    To study the effects of smoking in a film trailer. Experimental study. Ten secondary schools in Northern Germany. A sample of 1051 adolescents with a mean (SD) age of 14.2 (1.8) years. Main Exposures Participants were randomized to view a 42-second film trailer in which the attractive female character either smoked for about 3 seconds or did not smoke. Perception of the character was measured via an 8-item semantic differential scale. Each item consisted of a polar-opposite pair (eg, "sexy/unsexy") divided on a 7-point scale. Responses to individual items were summed and averaged. This scale was named "attractiveness." The Cronbach alpha for the attractiveness rating was 0.85. Multilevel mixed-effects linear regression was used to test the effect of smoking in a film trailer. Smoking in the film trailer did not reach significance in the linear regression model (z = 0.73; P = .47). Smoking status of the recipient (z = 3.81; P film trailer and smoking status of the recipient (z = 2.21; P = .03) both reached statistical significance. Ever smokers and never smokers did not differ in their perception of the female character in the nonsmoking film trailer. In the smoking film trailer, ever smokers judged the character significantly more attractive than never smokers. Even incidental smoking in a very short film trailer might strengthen the attractiveness of smokers in youth who have already tried their first cigarettes.

  12. Art of anticipation : the artistic status of the film trailer and its place in a wider cinematic culture

    OpenAIRE

    Hesford, Daniel William

    2013-01-01

    Close association with, and proximity to, a culture of commercialism means film trailers are often overlooked in academic analyses of cinema. Trailers are, for many audiences, simply adverts: disposable, consumable and not 'worthy' of the critical attention paid to the their feature-length antecedents. Yet trailers' undeniable impact on spectators generates a spectrum of reactions which contradicts the often dismissive and negative reception with which they are met. Trailers ...

  13. 78 FR 22941 - Sidump'r Trailer Company, Inc., Grant of Petition for Decision of Inconsequential Noncompliance

    Science.gov (United States)

    2013-04-17

    ...-28927; Notice 2] Sidump'r Trailer Company, Inc., Grant of Petition for Decision of Inconsequential...: Sidump'r Trailer Company, Inc. (Sidump'r) has determined that the rear impact guards on certain trailers...'r has filed an appropriate report pursuant to 49 CFR Part 573, Defect and Noncompliance...

  14. Characterization of pavement texture by means of height difference correlation and relation to wet skid resistance

    Directory of Open Access Journals (Sweden)

    Stefan Torbruegge

    2015-04-01

    We deduce within this article the correlation between classical surface roughness parameters and the parameter set of self-affine surfaces. These parameters allow for a detailed understanding of the relationship between pavement texture and its wet skid resistance. We present wet skid resistance measurements with the British pendulum and a linear friction tester device on different pavement textures. We demonstrate that the so-called estimated texture depth does not correlate to the surface skid resistance measured with the British pendulum. Finally, we deduce a dependency of wet skid resistance on pavement texture which is supported by current models for hysteresis friction.

  15. Traffic accidents and road surface skidding resistance : paper presented to the Second Internation Skid Prevention Conference, Columbus, Ohio, May 2-6, 1977.

    NARCIS (Netherlands)

    Schlösser, L.H.M.

    1999-01-01

    In this research a statistical relation was sought between the skidding resistance of road surfaces and the relative road risks. In the concept of accident quotient the number of accidents that occurs on a certain section of road within a certain period of time is related to the total number of

  16. Impact of Volcanic Ash on Road and Airfield Surface Skid Resistance

    Directory of Open Access Journals (Sweden)

    Daniel M. Blake

    2017-08-01

    Full Text Available Volcanic ash deposited on paved surfaces during volcanic eruptions often compromises skid resistance, which is a major component of safety. We adopt the British pendulum test method in laboratory conditions to investigate the skid resistance of road asphalt and airfield concrete surfaces covered by volcanic ash sourced from various locations in New Zealand. Controlled variations in ash characteristics include type, depth, wetness, particle size and soluble components. We use Stone Mastic Asphalt (SMA for most road surface experiments but also test porous asphalt, line-painted road surfaces, and a roller screed concrete mix used for airfields. Due to their importance for skid resistance, SMA surface macrotexture and microtexture are analysed with semi-quantitative image analysis, microscopy and a standardised sand patch volumetric test, which enables determination of the relative effectiveness of different cleaning techniques. We find that SMA surfaces covered by thin deposits (~1 mm of ash result in skid resistance values slightly lower than those observed on wet uncontaminated surfaces. At these depths, a higher relative soluble content for low-crystalline ash and a coarser particle size results in lower skid resistance. Skid resistance results for relatively thicker deposits (3–5 mm of non-vesiculated basaltic ash are similar to those for thin deposits. There are similarities between road asphalt and airfield concrete, although there is little difference in skid resistance between bare airfield surfaces and airfield surfaces covered by 1 mm of ash. Based on our findings, we provide recommendations for maintaining road safety and effective cleaning techniques in volcanic ash environments.

  17. Are double trailers cost effective for transporting forest biomass on steep terrain?

    Directory of Open Access Journals (Sweden)

    Rene Zamora-Cristales

    2015-07-01

    Full Text Available Transportation of forest biomass on steep terrain involves logistical challenges. Trucks with large single trailers are often unable to travel on forest roads due to their narrowness, tight curves, adverse grades and limited areas to turn around. A shorter trailer must be used but then transportation capacity is limited by the trailer volume due to the low bulk density of the processed biomass, particularly when the biomass is dry. With double trailers, transportation capacity can be limited by allowable legal weight based on axle number and spacing. We developed a simulation model that explores the economic feasibility of using double-trailer configurations to transport forest biomass to a bioenergy facility from the grinder at a landing or from a centralized yard in Washington, Oregon and California. Results show that double trailers can be a cost effective alternative to single trailers under limited conditions in Oregon and Washington, but they are not a competitive option in California due to the state's transportation regulations.

  18. Field investigation of skid resistance degradation of asphalt pavement during early service

    Directory of Open Access Journals (Sweden)

    Yinghao Miao

    2016-07-01

    Full Text Available This paper documents a field investigation into the skid resistance degradation of asphalt pavement during early service. Field tests were conducted 7 times during more than 2 years. There are 2 highway sections included in the field tests, which cover 4 asphalt surface types, i.e., dense asphalt concrete (DAC, rubber asphalt concrete (RAC, stone matrix asphalt (SMA, and ultra-thin wearing course (UTWC. Macrotexture and friction data were collected using the sand patch method and the dynamic friction tester respectively. The degradation of the mean texture depth (MTD and the friction coefficient at slip speed of 60 km/h (DFT60 were analyzed. The international friction index (IFI was also calculated using the friction coefficient at slip speed of 20 km/h (DFT20 with MTD to evaluate the skid resistance degradation. The UTWC has relatively good skid resistance even after 7.4 × 106 standard vehicle passes. The SMA has very stable friction performance which maintains almost the same friction level after 4.61 × 106 standard vehicle passes. The DAC and RAC have relatively poor friction performance while the RAC has better macrotexture. The changing trends of skid resistance with traffic wear can be fitted by a logarithmic model for all surface types. The SMA and UTWC have relatively clear relationship between DFT20 and MTD, while the RAC and the DAC show more complex. Keywords: Asphalt pavement, Skid resistance, Degradation, International friction index

  19. Research on Grooved Concrete Pavement Based on the Durability of Its Anti-Skid Performance

    Directory of Open Access Journals (Sweden)

    Mulian Zheng

    2018-05-01

    Full Text Available The objectives of the present study are to investigate the anti-skid performance of concrete pavement and to attempt to enhance its durability by two different methods: using a longitudinally-transversely grooved (LT form, and using a self-developed composite curing agent containing paraffin and Na2SiO3 as the main ingredients. The friction coefficient (μ was measured by self-developed equipment to evaluate the anti-skid performance of samples with three different groove forms (LT, longitudinally grooved (L, and transversely grooved (T. Abrasion tests were then carried out to evaluate the durability of the anti-skid performance. The results indicated that anti-skid performance of LT samples was approximately 46.2% greater than that of T samples, but its durability was not as significant as that of T samples. However, the resistance to abrasion could be improved by using the aforementioned curing agent. Comparisons were carried out between samples sprayed the curing agent and control samples without any curing agent under standard conditions. It was found that the application of the curing agent increased the anti-skid durability of concrete by 35.4%~47.8%, proving it to be a useful and promising technique.

  20. Saltwell PIC Skid Programmable Logic Controller (PLC) Software Configuration Management Plan

    International Nuclear Information System (INIS)

    KOCH, M.R.

    1999-01-01

    This document provides the procedures and guidelines necessary for computer software configuration management activities during the operation and maintenance phases of the Saltwell PIC Skids as required by LMH-PRO-309/Rev. 0, Computer Software Quality Assurance, Section 2.6, Software Configuration Management. The software configuration management plan (SCMP) integrates technical and administrative controls to establish and maintain technical consistency among requirements, physical configuration, and documentation for the Saltwell PIC Skid Programmable Logic Controller (PLC) software during the Hanford application, operations and maintenance. This SCMP establishes the Saltwell PIC Skid PLC Software Baseline, status changes to that baseline, and ensures that software meets design and operational requirements and is tested in accordance with their design basis

  1. Fleet Evaluation and Factory Installation of Aerodynamic Heavy Duty Truck Trailers

    Energy Technology Data Exchange (ETDEWEB)

    Beck, Jason; Salari, Kambiz; Ortega, Jason; Brown, Andrea

    2013-09-30

    The purpose of DE-EE0001552 was to develop and deploy a combination of trailer aerodynamic devices and low rolling resistance tires that reduce fuel consumption of a class 8 heavy duty tractor-trailer combination vehicle by 15%. There were 3 phases of the project: Phase 1 – Perform SAE Typed 2 track tests with multiple device combinations. Phase 2 – Conduct a fleet evaluation with selected device combination. Phase 3 – Develop the devices required to manufacture the aerodynamic trailer. All 3 phases have been completed. There is an abundance of available trailer devices on the market, and fleets and owner operators have awareness of them and are purchasing them. The products developed in conjunction with this project are at least in their second round of refinement. The fleet test undertaken showed an improvement of 5.5 – 7.8% fuel economy with the devices (This does not include tire contribution).

  2. Astronaut Neil Armstrong in Launch Complex 16 trailer during suiting up

    Science.gov (United States)

    1966-01-01

    Astronaut Neil A. Armstrong, command pilot of the Gemini 8 space flight, sits in the Launch Complex 16 trailer during suiting up operations for the Gemini 8 mission. Suit technician Jim Garrepy assists.

  3. Cost Analysis Of Replacement And Bearing Trailer Maintenance In Sugar Group Companies

    OpenAIRE

    Mastur, Mastur; Masyhuri, Masyhuri; Waluyati, Lestari Rahayu

    2017-01-01

    The purpose of this study are to understand (i) the costs and periods optimal of grease used for the replacement and maintenance bearing trailer in Sugar Group Companies (SGC), and (ii) the effect of a period and frequency of grease, lifetime bearing, frequency of replacement bearing in a year, unit trailer, brand bearing, and location of plant. The basic method used is descriptive and analytical. The location determined were in Workshop Division PT. ILP, PT. SIL, and PT. GPM. The analytical ...

  4. Trailers in between short video forms from digital games to movies and back

    OpenAIRE

    Gandolfi, Enrico; Semprebene, Roberto

    2017-01-01

    Promotional trailers represent a significant trend in most entertainment sectors. However, little efforts have been done in enlightening this expressive form when related to video games. This article aims to address such a lack by analyzing game/movie (inspired by digital games) trailers as a crossroad between digital entertainment and films. The main intent is to exploit a comparative lens to uncover leading traits of short videos according to the medium that that they are portraying. Theref...

  5. Traffic accidents and road surface skidding resistance : an investigation into the statistical relationship between the skidding resistance of the road surface and relative road risk. Summary of the research report of Sub-committee V of the Working Group on Tyres, Road Surfaces and Skidding Accidents of the Institute for Road Safety Research, SWOV

    NARCIS (Netherlands)

    Schlösser, L.H.M

    1975-01-01

    This study forms part of an extended research programme of the Working Group on Tyres, Road-surfaces and Skidding accidents. According to the terms of reference a statistical relationship had to be established between the skidding resistance of a road-surface and the number of accidents per million

  6. Comparison of contact skidded and skidless techniques which are used for surface roughness characterization

    Energy Technology Data Exchange (ETDEWEB)

    Tomov, Mite; Kuzinovski, Mikolaj [Faculty of Mechanical Engineering, ' Ss. Cyril and Methodius' University, Skopje (Macedonia, The Former Yugoslav Republic of); Cichosz, Piotr [Institute of Production Engineering and Automation of the Wroclaw University of Technology, Wroclw, (Poland)

    2014-07-01

    In this study included several dilemmas arising from the recommendations in the international standards referring to surface roughness measurement with using skidded and skidless measurement instruments. Also, this paper explained the role and the impact of the skid as mechanical reference in the construction of the surface roughness measuring instruments. In order to determine the impact from the different constructive performances of the measurement instruments on the surface roughness value, are measured more periodic and non-periodic etalon surfaces representative of various machining process (turning, milling, grinding and lapping). Comparative analysis of the values and differences for the roughness parameters and primary profile parameters are displayed. (Author)

  7. Highway pavement performance test for colored thin anti-skidding layers

    Science.gov (United States)

    Gao, Wei; Cui, Wei; Xu, Ming

    2018-03-01

    Based on the actual service condition of highway pavement colored thin anti-skidding layers, with materials of color quartz sand and two-component acrylic resin as basis, we designed such tests as the bond strength, shearing strength, tear strength, fatigue performance and aggregate polished value, and included the freeze-thaw cycle and de-icing salt and other factors in the experiment, connecting with the climate characteristics of circumpolar latitude and low altitude in Heilongjiang province. Through the pavement performance test, it is confirmed that the colored thin anti-skidding layers can adapt to cold and humid climate conditions, and its physical mechanical properties are good.

  8. High-capacity, high-strength trailer designs for the GA-4/GA-9 casks

    International Nuclear Information System (INIS)

    Rickard, N.D.; Kissinger, J.A.; Taylor, C.; Zimmer, A.

    1991-01-01

    General Atomics (GA) is developing final designs for two dedicated legal-weight trailers to transport the GA-4 and GA-9 Spent-Fuel Casks. The basic designs for these high-capacity, high-strength trailers are essentially identical except for small modifications to account for the differences in cask geometry. The authors are designing both trailers to carry a 55,000 lb (24,900 kg) payload and to withstand a 2.5 g vertical design load. The GA-4 and GA-9 trailers are designed for significantly higher loads than are typical commercial semitrailers, which are designed to loads in the range of 1.7 to 2.0 g. To meet the federal gross vehicle weight limit for legal-weight trucks, GA has set a target design weight for the trailers of 9000 lb (4080 kg). This weight includes the personnel barrier, cask tiedowns, and impact limiter removal and storage system. Based on the preliminary trailer designs, the final design weight will to be very close to this target weight

  9. High-capacity, high-strength trailer designs for the GA-4/GA-9 Casks

    International Nuclear Information System (INIS)

    Kissinger, J.A.; Rickard, N.D.; Taylor, C.; Zimmer, A.

    1991-01-01

    General Atomics (GA) is developing final designs for two dedicated legal-weight trailers to transport the GA-4 and GA-9 Spent-Fuel Casks. The basic designs for these high-capacity, high-strength trailers are essentially identical except for small modifications to account for the differences in cask geometry. We are designing both trailers to carry a 55,000 lb (24,900 kg) payload and to withstand a 2.5 g vertical design load. The GA-4 and GA-9 trailers are designed for significantly higher loads than are typical commercial semitrailers, which are designed to loads in the range of 1.7 to 2.0 g. To meet the federal gross vehicle weight limit for legal-weight trucks, GA has set a target design weight for the trailers of 9000 lb (4080 kg). This weight includes the personnel barrier, cask tiedowns, and impact limiter removal and storage system. Based on the preliminary trailer designs, the final design weight is expected to be very close to this target weight. 3 refs., 3 figs

  10. Test Report for Acceptance Test Procedure for Pumping Instrumentation and Control Skid ''P''

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This Acceptance Test Report (ATR) provides the test results for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''P''. The ATR summaries the results and provides a copy of the ATP and inspections in the Appendix

  11. Test Report for Acceptance Test Procedure for Pumping Instrumentation and Control Skid N

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This is a Test Report for Acceptance Test Procedure (ATP) RPP-5489. This test report provides the results of the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''N''. The ATP was successfully completed. A copy of the completed ATP is in the Appendix of this document

  12. Test Report for Acceptance Test Procedure for Pumping Instrumentation and Control Skid M

    International Nuclear Information System (INIS)

    KOCH, M.R.

    1999-01-01

    This is a Test Report for Acceptance Test Procedure (ATP) RPP-5073. This test report provides the results of the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''M''. The ATP was successfully completed. A copy of the completed ATP is in the Appendix of this document

  13. Economic comparisons of haul road construction versus forwarding versus longer skid distances

    Science.gov (United States)

    Michael D. Erickson; Curt C. Hassler; Chris B. LeDoux

    1992-01-01

    There currently exists no set of basic guidelines for Appalachian loggers to use in the decision making process for selecting the best way to harvest a tract of timber. Specifically, guidelines are needed for deciding between the alternatives of constructing truck haul roads to access an area or other alternatives such as skidding or forwarding timber longer distances...

  14. Durability of certain configurations for providing skid resistance on concrete pavements.

    Science.gov (United States)

    1974-01-01

    The main objective of this study was to establish the factors that influence the durability of the surface configurations that are used or can be used to provide high and long lasting skid resistance for portland cement concrete pavements. In the dev...

  15. Test Report for Acceptance Test Procedure for Pumping Instrumentation and Control Skid L

    Energy Technology Data Exchange (ETDEWEB)

    KOCH, M.R.

    1999-11-09

    This is a Test Report for Acceptance Test Procedure (ATP) RPP-5055. This test report provides the results of the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''L''. The ATP was successfully completed. A copy of the completed ATP is in the Appendix of this document.

  16. Productivity and cost of manual felling and cable skidding in central Appalachian hardwood forests

    Science.gov (United States)

    Jingxin Wang; Charlie Long; Joe McNeel; John Baumgras; John Baumgras

    2004-01-01

    A field production study was conducted for a manual harvesting system using a chainsaw and cable skidder in a central Appalachian hardwood forest site. A partial cut was performed on a 50-acre tract with an average slope of 25 percent. Felling time pre tree was most affected by diameter at breast height and the distance between harvested trees while skidding cycle time...

  17. Test Report for Acceptance Test Procedure for Pumping Instrumentation and Control Skid Q

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This Acceptance Test Report (ATR) provides the test results for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''Q''. The ATR summaries the results and provides a copy of the ATP and inspections in the Appendix

  18. An adaptable walking-skid for seabed ROV under strong current disturbance

    Science.gov (United States)

    Si, Jianting; Chin, Chengsiong

    2014-09-01

    This paper proposed a new concept of an adaptable multi-legged skid design for retro-fitting to a remotely-operated vehicle (ROV) during high tidal current underwater pipeline inspection. The sole reliance on propeller-driven propulsion for ROV is replaced with a proposed low cost biomimetic solution in the form of an attachable hexapod walking skid. The advantage of this adaptable walking skid is the high stability in positioning and endurances to strong current on the seabed environment. The computer simulation flow studies using Solidworks Flow Simulation shown that the skid attachment in different compensation postures caused at least four times increase in overall drag, and negative lift forces on the seabed ROV to achieve a better maneuvering and station keeping under the high current condition (from 0.5 m/s to 5.0 m/s). A graphical user interface is designed to interact with the user during robot-in-the-loop testing and kinematics simulation in the pool.

  19. Test Report for Acceptance Test Procedure for Pumping Instrumentation and Control Skid L

    International Nuclear Information System (INIS)

    KOCH, M.R.

    1999-01-01

    This is a Test Report for Acceptance Test Procedure (ATP) RPP-5055. This test report provides the results of the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''L''. The ATP was successfully completed. A copy of the completed ATP is in the Appendix of this document

  20. Socio-economic impact of ox skidding project to the surrounding ...

    African Journals Online (AJOL)

    The ox skidding project was initiated with the objective of using oxen for transporting logs from the stump sites to the landings. It was supposed to be a participatory research project aimed at integrating scientific knowledge with practical skills and resource base of the local farmers. Specifically the main objective of the ...

  1. Residual damage in different ground logging methods alongside skid trails and winching strips

    Czech Academy of Sciences Publication Activity Database

    Aysan Badraghi, Naghimeg; Erler, J.; Hosseini, S. A. O.

    2015-01-01

    Roč. 61, č. 12 (2015), s. 526-534 ISSN 1212-4834 Institutional support: RVO:67179843 Keywords : Long-length method (LLM) * Short-length method (SLM) * Skidding and winching operations * Tree-length method (TLM) Subject RIV: EF - Botanics

  2. Recovery of crown mass for energy with whole-tree skidding methods; Puupolttoaineen tuottaminen kokopuujuontomenetelmillae

    Energy Technology Data Exchange (ETDEWEB)

    Nousiainen, I. [Finntech Ltd Oy, Jyvaeskylae (Finland); Vesisenaho, T. [VTT Energy, Jyvaeskylae (Finland)

    1996-12-31

    The main aim of the project `Recovery of crown mass for energy with whole-tree skidding methods` was to develop the integrated harvesting method of wood raw material and wood fuel based on whole-tree skidding. The developed method gives also the possibility to deliver to sawmills raw material in the form of log section. In the harvesting chain under development whole-trees are felled and bunched with a normal one-grip harvester. The whole-trees are skidded to the roadside by a forwarder equipped with a clam bunk. At the roadside the trees are delimbed and cut with the one-grip harvester used for felling and bunching. According to the results of the field tests the harvesting costs of logging residues are in certain final cutting conditions even under 10 FIM/m{sup 3}, when the average stem size is over 0,500 m{sup 3}. In the developed method felling and bunching of whole trees with the one-grip harvester and skidding of whole-trees with the clam skidder succeeded well. The problems of the method concentrate on delimbing and bucking of whole-trees in landing site

  3. Recovery of crown mass for energy with whole-tree skidding methods; Puupolttoaineen tuottaminen kokopuujuontomenetelmillae

    Energy Technology Data Exchange (ETDEWEB)

    Nousiainen, I [Finntech Ltd Oy, Jyvaeskylae (Finland); Vesisenaho, T [VTT Energy, Jyvaeskylae (Finland)

    1997-12-31

    The main aim of the project `Recovery of crown mass for energy with whole-tree skidding methods` was to develop the integrated harvesting method of wood raw material and wood fuel based on whole-tree skidding. The developed method gives also the possibility to deliver to sawmills raw material in the form of log section. In the harvesting chain under development whole-trees are felled and bunched with a normal one-grip harvester. The whole-trees are skidded to the roadside by a forwarder equipped with a clam bunk. At the roadside the trees are delimbed and cut with the one-grip harvester used for felling and bunching. According to the results of the field tests the harvesting costs of logging residues are in certain final cutting conditions even under 10 FIM/m{sup 3}, when the average stem size is over 0,500 m{sup 3}. In the developed method felling and bunching of whole trees with the one-grip harvester and skidding of whole-trees with the clam skidder succeeded well. The problems of the method concentrate on delimbing and bucking of whole-trees in landing site

  4. Test Report for Acceptance Test Procedure for Pumping Instrumentation and Control Skid M

    Energy Technology Data Exchange (ETDEWEB)

    KOCH, M.R.

    1999-12-13

    This is a Test Report for Acceptance Test Procedure (ATP) RPP-5073. This test report provides the results of the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''M''. The ATP was successfully completed. A copy of the completed ATP is in the Appendix of this document.

  5. Effects of Frustration on the Response Rate of Skid Row Alcoholics on a Performance Task

    Science.gov (United States)

    Scorzelli, James F.; Reinke-Scorzelli, Mary

    1976-01-01

    Determines the changes that may occur in the response rates of 14 skid row alcoholics on a performance task after the introduction of a frustration operation. Results suggest a possible relationship between low frustration tolerance and the method by which these individuals tend to motivate themselves. (Author)

  6. Felling and skidding productivity and harvesting cost in southern pine forests

    Science.gov (United States)

    R.A. Kluender; B.J. Stokes

    1996-01-01

    Sixteen stands were harvested at various levels of basal area removed (intensity). Chainsaw felling productivity was more sensitive to stem diameter than harvest intensity. Skidding productivity was highest when removing large trees at high intensity. Harvesting cost was more sensitive to stem size than harvest intensity, although harvest intensity was a very important...

  7. PLC/DTAM Software Programs for Pumping Instrumentation and Control Skid X

    International Nuclear Information System (INIS)

    HORNER, T.M.

    2001-01-01

    This document describes the software programs for the Allen-Bradley SLC 500 programmable logic controller (PLC) and the Allen-Bradley DTAM PLUS operator interface module used on Pumping Instrumentation and Control (PIC) skid ''X''. The software programs for the SLC 500 and DTAM Plus are based on the core programs provided by Allen-Bradley. The PLC and DTAM software programs on skid ''D'' for SX-104 are the baseline programs. These baselines will be tailored for each individual BY-farm skid. An Acceptance Test Procedure (ATP) and an Operational Test Procedure (OTP) verify that the software programs meet the specific requirements for BY-105 pumping. This document represents the final PLC and DTAM programs for PIC skid ''X'' at BY-105. These programs were printed out after the performance of the OTP. The OTP acts as the final qualification test for the software programs. Functional requirements and details of the PLC ladder logic are described in this document. The final programs entered into the PLC and DTAM Plus are included as Appendices to this document

  8. Durability testing of the high-capacity GA-4/GA-9 trailer

    International Nuclear Information System (INIS)

    Zimmer, A.

    1993-01-01

    General Atomics (GA) is under contract to the US Department of Energy (DOE), Idaho Field Office, to develop two legal-weight truck from-reactor spent-fuel shipping casks with trailers. GA is developing these high capacity transport systems to support the Office of Civilian Radioactive Waste Management's (OCRWM) mission to transport spent fuel from reactors to a permanent disposal site. GA's goal is to maximize the number of fuel assemblies that the transport system can safely carry. The GA-4 Cask is being designed to transport four pressurized-water-reactor (PWR) spent-fuel assemblies, and the GA-9 Cask is being designed to transport nine boiling-water-reactor (BWR) spent-fuel assemblies. The use of these high-capacity transport systems will have a large benefit to-public safety since the number of legal-weight truck shipments will be reduced by at least a factor of four over existing spent-fuel shipping cask systems. Achieving these capacities requires that the weight of each component of the transport system. i.e., cask, trailer and tractor, be minimized. The weight of the trailer is of particular importance. With a high load-to-weight ratio, the durability and reliability of the trailer become significant factors in the success of the transport system. In order to verify that the trailer design will meet the durability and performance requirements to safely transport spent-fuel, GA has planned an extensive testing program. The testing program includes non-destructive examination (NDE) of the trailer welds, operational testing, a static load test, an over-the-road performance test, and a test to verify the durability of the trailer up to its 1,000,000-mile design life. Since a prototype cask will not be available for the testing, GA designed and built a dummy payload that simulates the correct weight distribution and approximates the dynamic response of the prototype cask

  9. Evaluation of Fine Aggregate Morphology by Image Method and Its Effect on Skid-Resistance of Micro-Surfacing

    Directory of Open Access Journals (Sweden)

    Yue Xiao

    2018-05-01

    Full Text Available Micro-surfacing is a widely used pavement preventive maintenance technology used all over the world, due to its advantages of fast construction, low maintenance cost, good waterproofness, and skid-resistance performance. This study evaluated the fine aggregate morphology and surface texture of micro-surfacing by AIMS (aggregate image measurement system, and explored the effect of aggregate morphology on skid-resistance of single-grade micro-surfacing. Sand patch test and British pendulum test were also used to detect skid-resistance for comparison with the image-based method. Wet abrasion test was used to measure skid-resistance durability for feasibility verification of single-grade micro-surfacing. The results show that the effect of Form2D on the skid-resistance of micro-surfacing is much stronger than that of angularity. Combining the feasibility analysis of durability and skid-resistance, 1.18–2.36 grade micro-surfacing meets the requirements of durability and skid-resistance at the same time. This study also determined that, compared with British pendulum test, the texture result obtained by sand patch test fits better with results of image method.

  10. Evaluation of Fine Aggregate Morphology by Image Method and Its Effect on Skid-Resistance of Micro-Surfacing.

    Science.gov (United States)

    Xiao, Yue; Wang, Feng; Cui, Peide; Lei, Lei; Lin, Juntao; Yi, Mingwei

    2018-05-29

    Micro-surfacing is a widely used pavement preventive maintenance technology used all over the world, due to its advantages of fast construction, low maintenance cost, good waterproofness, and skid-resistance performance. This study evaluated the fine aggregate morphology and surface texture of micro-surfacing by AIMS (aggregate image measurement system), and explored the effect of aggregate morphology on skid-resistance of single-grade micro-surfacing. Sand patch test and British pendulum test were also used to detect skid-resistance for comparison with the image-based method. Wet abrasion test was used to measure skid-resistance durability for feasibility verification of single-grade micro-surfacing. The results show that the effect of Form2D on the skid-resistance of micro-surfacing is much stronger than that of angularity. Combining the feasibility analysis of durability and skid-resistance, 1.18⁻2.36 grade micro-surfacing meets the requirements of durability and skid-resistance at the same time. This study also determined that, compared with British pendulum test, the texture result obtained by sand patch test fits better with results of image method.

  11. Drag Reduction CFD Simulations and Flow Visualization of Light Vehicle-Trailer Systems

    Science.gov (United States)

    Sigurdson, Lorenz; Boyer, Henry; Lange, Carlos F.

    2016-11-01

    Experiments and CFD were performed to study the effect a deflector had on the flow and drag force associated with a 2010 F-150 truck and cargo trailer Light Vehicle-Trailer System (LVTS). Image Correlation Velocimetry (ICV) on smokewire streaklines measured the velocity field on the model mid-plane. CFD estimated the drag reduction as 13% at a Re of 14,900 with a moving ground-plane, and 17% without. Experiments suggested that the low Re does not diminish the full-scale relevance of the drag reduction results. One low Re effect was the presence of a separation bubble on the hood of the tow vehicle whose size reduced with an increase in Re. Three other characteristic flow patterns were identified: separation off the lead vehicle cab, stagnation of the free-stream on the trailer face for the no-deflector case, and subsequent separation at the trailer front corner. Comparisons of the ICV and CFD results with no deflector indicated good agreement in the direction of the velocity vectors, and the smoke streaklines and CFD streamlines also agreed well. However, for the deflector case, the CFD found an entirely different topological solution absent in the experiment. A pair of vertically-oriented mid-plane vortices were wrapped around the front of the trailer. Support from the Canadian Natural Sciences and Engineering Research Council Grant 41747 is gratefully acknowledged.

  12. Enhanced methods for operating refueling station tube-trailers to reduce refueling cost

    Science.gov (United States)

    Elgowainy, Amgad; Reddi, Krishna

    2017-08-22

    A method and apparatus are provided for operating a refueling station including source tube-trailers and at least one compressor to reduce refueling cost. The refueling station includes a gaseous fuel supply source including a plurality of tanks on a tube trailer coupled to a first control unit, and high pressure buffer storage having predefined capacity coupled to a second control unit and the first tanks by a pressure control valve and the first control unit, and at least one compressor. The refueling station is operated at different modes depending on a state of the refueling station at the beginning of each operational mode. The refueling system is assessed at the end of each operational mode to identify the state of the system and select a next mode of operation. The operational modes include consolidating hydrogen, or any gaseous fuel, within the tubes mounted on the trailer.

  13. Spatial Modeling of a New Technological Typification in Forestry Based on Multicriteria Evaluation of Skidding Technologies

    Directory of Open Access Journals (Sweden)

    Michal Synek

    2015-01-01

    Full Text Available The study describes a new system of technological typification in forestry based on multicriteria evaluation of environmentally friendly use of common skidding technologies. A farm tractor, skidder, cable system, forwarder, and forwarder in combination with harvester were selected as model skidding technologies. The proposed model determines one of the four categories in terms of their environmentally friendly use: 1 Fully suitable, 2 Suitable, 3 Unsuitable – not excluded and 4 Unsuitable for every forest stand and individual skidding technology. The Saaty matrix was used to define weights of input parameters for multicriteria evaluation. The selected input parameters included: slope inclination, ground bearing capacity, risk of logging-transportation erosion hazard, presence and size of obstacles, skidding distance, terrain shape and age of stands. Stocking and areal representation of selected tree species were added to the evaluation of forwarder-harvester combination. Different equipment (standard tires, low-pressure tires, wheel tracks and climatic conditions (dry, wet were also taken into account in the evaluation of the model. A multicriteria evaluation was carried out by means of GIS tools in SW ESRI ArcGIS Desktop. The model was applied to the selected experimental territory in the upper part of the basin of the Oskava river and it was verified in different forest stands and terrain conditions in the northern part of the Mendel University Training Forest Enterprise Křtiny. Verification of model results was carried out in randomly selected stands with the overall area representing more than 10% of the total forest area in the experimental territory and more than 8% of the total forest area in the verification territory.

  14. Operational Test Report (OTR) for U-105 Pumping and Instrumentation and Control (PIC) Skid

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    Attached is the completed Operation Test Procedure (OTP-200-004, Rev. A-18). OTP includes a print out of the Programmable Logic Controller (PLC) Ladder Diagram. Ladder Diagram was designed for installation in the PLC used to monitor and control pumping activity for Tank Farm 241-U-105. The completed OTP and OTR are referenced in the IS PIC Skid Configuration Drawing (H-2-829998)

  15. Catch me if you can: Comparing ballast water sampling skids to traditional net sampling

    Science.gov (United States)

    Bradie, Johanna; Gianoli, Claudio; Linley, Robert Dallas; Schillak, Lothar; Schneider, Gerd; Stehouwer, Peter; Bailey, Sarah

    2018-03-01

    With the recent ratification of the International Convention for the Control and Management of Ships' Ballast Water and Sediments, 2004, it will soon be necessary to assess ships for compliance with ballast water discharge standards. Sampling skids that allow the efficient collection of ballast water samples in a compact space have been developed for this purpose. We ran 22 trials on board the RV Meteor from June 4-15, 2015 to evaluate the performance of three ballast water sampling devices (traditional plankton net, Triton sampling skid, SGS sampling skid) for three organism size classes: ≥ 50 μm, ≥ 10 μm to Natural sea water was run through the ballast water system and untreated samples were collected using paired sampling devices. Collected samples were analyzed in parallel by multiple analysts using several different analytic methods to quantify organism concentrations. To determine whether there were differences in the number of viable organisms collected across sampling devices, results were standardized and statistically treated to filter out other sources of variability, resulting in an outcome variable representing the mean difference in measurements that can be attributed to sampling devices. These results were tested for significance using pairwise Tukey contrasts. Differences in organism concentrations were found in 50% of comparisons between sampling skids and the plankton net for ≥ 50 μm, and ≥ 10 μm to < 50 μm size classes, with net samples containing either higher or lower densities. There were no differences for < 10 μm organisms. Future work will be required to explicitly examine the potential effects of flow velocity, sampling duration, sampled volume, and organism concentrations on sampling device performance.

  16. Operational Test Report (OTR) for U-105 Pumping and Instrumentation and Control (PIC) Skid

    Energy Technology Data Exchange (ETDEWEB)

    KOCH, M.R.

    2000-02-28

    Attached is the completed Operation Test Procedure (OTP-200-004, Rev. A-18). OTP includes a print out of the Programmable Logic Controller (PLC) Ladder Diagram. Ladder Diagram was designed for installation in the PLC used to monitor and control pumping activity for Tank Farm 241-U-105. The completed OTP and OTR are referenced in the IS PIC Skid Configuration Drawing (H-2-829998).

  17. Operational Test Report (OTR) for U-102 Pumping and Instrumentation and Control (PIC) Skid

    Energy Technology Data Exchange (ETDEWEB)

    KOCH, M.R.

    2000-02-28

    Attached is the completed Operation Test Procedure (OTP-200-004, Rev. A-19 and Rev. A-20). OTP includes a print out of the Programmable Logic Controller (PLC) Ladder Diagram. Ladder Diagram was designed for installation in the PLC used to monitor and control pumping activity for Tank Farm 241-U-102. The completed OTP and OTR are referenced in the IS PIC Skid Configuration Drawing (H-2-829998).

  18. Operational Test Report (OTR) for U-103 Pumping and Instrumentation and Control (PIC) Skid

    Energy Technology Data Exchange (ETDEWEB)

    KOCH, M.R.

    2000-02-28

    Attached is the completed Operation Test Procedure (OTP-200-004, Rev. A-16). OTP includes a print out of the Programmable Logic Controller (PLC) Ladder Diagram. Ladder Diagram was designed for installation in the PLC used to monitor and control pumping activity for Tank Farm 241-U-103. The completed OTP and OTR are referenced in the 25 PIC Skid Configuration Drawing (H-2-829998).

  19. An assessment of the skid resistance effect on traffic safety under wet-pavement conditions.

    Science.gov (United States)

    Pardillo Mayora, José M; Jurado Piña, Rafael

    2009-07-01

    Pavement-tire friction provides the grip that is required for maintaining vehicle control and for stopping in emergency situations. Statistically significant negative correlations of skid resistance values and wet-pavement accident rates have been found in previous research. Skid resistance measured with SCRIM and crash data from over 1750km of two-lane rural roads in the Spanish National Road System were analyzed to determine the influence of pavement conditions on safety and to assess the effects of improving pavement friction on safety. Both wet- and dry-pavement crash rates presented a decreasing trend as skid resistance values increased. Thresholds in SCRIM coefficient values associated with significant decreases in wet-pavement crash rates were determined. Pavement friction improvement schemes were found to yield significant reductions in wet-pavement crash rates averaging 68%. The results confirm the importance of maintaining adequate levels of pavement friction to safeguard traffic safety as well as the potential of pavement friction improvement schemes to achieve significant crash reductions.

  20. Dynamic Arc Fitting Path Follower for Skid-Steered Mobile Robots

    Directory of Open Access Journals (Sweden)

    Peter Lepej

    2015-10-01

    Full Text Available Many applications, such as surveillance, inspection or search and rescue operations, can be performed with autonomous robots. Our aim is a control of modular autonomous systems in rescue robotics. One of the basic problems with autonomous robotics is the execution part where the control commands (translation and rotational velocities are produced for mobile bases. Therefore we have focused on this area because there is only a small amount of available path following software for skid-steered mobile robots. Our goal was to develop a velocity controller that could be used for multiple skid-steered mobile bases. We considered differential drive mobile bases such as tracked skid-steering mobile bases. Our approach is based on an arc fitting algorithm, which takes into account the robot constraints and kinematical model. It produces a continuous trajectory where fitting to the given path is adapted based on given parameters. Moreover, we have included orientation angle compensation while the mobile robot is moving and ground inclination compensation. Our rescue robot is described, together with the simulation setup and algorithm implementation. We compared our algorithm to the Hector-based software and curvature velocity approach. The results for the proposed algorithm are shown for the simulation results and the experiment.

  1. Video Book Trailers: Coming to a Library Near You! Spotlight Feature

    Science.gov (United States)

    Dopke-Wilson, MariRae

    2009-01-01

    This article features two library media specialists who discovered a way to motivate high school students to read. When most people go to the movies, the "coming attractions" or movie trailers are as anticipated as the popcorn! This Americana movie tradition hooks people again and again on what they will come back to see next. So, it's no surprise…

  2. Laser Safety and Hazard Analysis for the Trailer (B70) Based AURA Laser System

    International Nuclear Information System (INIS)

    AUGUSTONI, ARNOLD L.

    2003-01-01

    A laser safety and hazard analysis was performed for the AURA laser system based on the 2000 version of the American National Standards Institute's (ANSI) Standard Z136.1, for ''Safe Use of Lasers'' and the 2000 version of the ANSI Standard Z136.6, for ''Safe Use of Lasers Outdoors''. The trailer based AURA laser system is a mobile platform, which is used to perform laser interaction experiments and tests at various national test sites. The trailer (B70) based AURA laser system is generally operated on the United State Air Force Starfire Optical Range (SOR) at Kirtland Air Force Base (KAFB), New Mexico. The laser is used to perform laser interaction testing inside the laser trailer as well as outside the trailer at target sites located at various distances from the exit telescope. In order to protect personnel, who work inside the Nominal Hazard Zone (NHZ), from hazardous laser emission exposures it was necessary to determine the Maximum Permissible Exposure (MPE) for each laser wavelength (wavelength bands) and calculate the appropriate minimum Optical Density (OD min ) of the laser safety eyewear used by authorized personnel and the Nominal Ocular Hazard Distance (NOHD) to protect unauthorized personnel who may have violated the boundaries of the control area and enter into the laser's NHZ

  3. Using TRAILER tool for Managing Informal Learning in academic and professional contexts: the learners’ perspective

    NARCIS (Netherlands)

    Viegas, Maria C.; Marques, Maria A.; Alves, Gustavo R.; Zangrando, Valentina; Galanis, Nikolas; Brouns, Francis; Janssen, José; Waszkiewicz, Elwira; Mykowska, Alexandra; Conde, Miguel Á.; García-Holgado, Alicia; García-Peñalvo, Francisco J.

    2013-01-01

    Viegas, C., Marques, A., Alves, G., Zangrando, V., Galanis, N., Brouns, F., Janssen, J., Waszkiewicz, E., Mykowska, A., Gonzalez, M., Holgado, A., & García-Peñalvo, F. (2013). Using TRAILER tool for Managing Informal Learning in academic and professional contexts: the learners’ perspective. In F.

  4. Computational Analysis of a South African Mobile Trailer-Type Medium Sized Tyre Test Rig

    CSIR Research Space (South Africa)

    Sharma, Shikar

    2015-04-01

    Full Text Available To support the South African National Defence Force with their vehicle mobility needs, the CSIR has begun characterising tyres by using a medium, trailer-type, tyre test rig. Two different Pacejka tyre models were generated using two independent...

  5. Comparative injury, adipose fin mark quality, and tag retention of spring Chinook Salmon marked and coded wire tagged by an automated trailer and manual trailer at Carson National Fish Hatchery: October 2008

    Data.gov (United States)

    Department of the Interior — The United States Fish and Wildlife Service’s Columbia River Fisheries Program Office has been marking and tagging salmon with automated trailers consistently since...

  6. Influence of physical and chemical polymer-filler bonds on wet skid resistance and related properties of passenger car tire treads

    NARCIS (Netherlands)

    Cichomski, E.M.; Dierkes, Wilma K.; Noordermeer, Jacobus W.M.; Tolpekina, T.V.; Schultz, S.M.

    2012-01-01

    Knowledge about the influence of rubber – filler interactions on the wet skid behavior of tire treads is insufficient, in order to quickly develop new compounds with improved wet skid performance. The rubber compound used for a tire tread is in fact a composite material of which the dynamic

  7. Evaluation of Skid Resistance of Wearing Course Made Of Stone Mastic Asphalt Mixture in Laboratory Conditions

    Science.gov (United States)

    Wasilewska, Marta

    2017-10-01

    This paper presents the comparison of skid resistance of wearing course made of SMA (Stone Mastic Asphalt) mixtures which differ in resistance to polishing of coarse aggregate. Dolomite, limestone, granite and trachybasalt were taken for investigation. SMA mixtures have the same nominal size of aggregate (11 mm) and very similar aggregate particle-size distribution in mineral mixtures. Tested SMA11 mixtures were designed according to EN 13108-5 and Polish National Specification WT-2: 2014. Evaluation of the skid resistance has been performed using the FAP (Friction After Polishing) test equipment also known as the Wehner/Schulze machine. Laboratory method enables to compare the skid resistance of different types of mixtures under specified conditions simulating polishing processes. Tests were performed on both the specimens made of each coarse aggregate and SMA11 mixtures containing these aggregates. Measuring of friction coefficient μm was conducted before and during polishing process up to 180 0000 passes of polishing head. Comparison of the results showed differences in sensitivity to polishing among particular mixtures which depend on the petrographic properties of rock used to produce aggregate. Limestone and dolomite tend to have a fairly uniform texture with low hardness which makes these rock types susceptible to rapid polishing. This caused lower coefficient of friction for SMA11 mixtures with limestone and dolomite in comparison with other test mixtures. These significant differences were already registered at the beginning of the polishing process. Limestone aggregate had lower value of μm before starting the process than trachybasalt and granite aggregate after its completion. Despite the differences in structure and mineralogical composition between the granite and trachybasalt, slightly different values of the friction coefficient at the end of polishing were obtained. Images of the surface were taken with the optical microscope for better

  8. Effect of aggregate graining compositions on skid resistance of Exposed Aggregate Concrete pavement

    Science.gov (United States)

    Wasilewska, Marta; Gardziejczyk, Wladysław; Gierasimiuk, Pawel

    2018-05-01

    The paper presents the evaluation of skid resistance of EAC (Exposed Aggregate Concrete) pavements which differ in aggregate graining compositions. The tests were carried out on concrete mixes with a maximum aggregate size of 8 mm. Three types of coarse aggregates were selected depending on their resistance to polishing which was determined on the basis of the PSV (Polished Stone Value). Basalt (PSV 48), gabbro (PSV 50) and trachybasalt (PSV 52) aggregates were chosen. For each type of aggregate three graining compositions were designed, which differed in the content of coarse aggregate > 4mm. Their content for each series was as follows: A - 38%, B - 50% and C - 68%. Evaluation of the skid resistance has been performed using the FAP (Friction After Polishing) test equipment also known as the Wehner/Schulze machine. Laboratory method enables to compare the skid resistance of different types of wearing course under specified conditions simulating polishing processes. In addition, macrotexture measurements were made on the surface of each specimen using the Elatexure laser profile. Analysis of variance showed that at significance level α = 0.05, aggregate graining compositions as well as the PSV have a significant influence on the obtained values of the friction coefficient μm of the tested EAC pavements. The highest values of the μm have been obtained for EAC with the lowest amount of coarse aggregates (compositions A). In these cases the resistance to polishing of the aggregate does not significantly affect the friction coefficients. This is related to the large areas of cement mortar between the exposed coarse grains. Based on the analysis of microscope images, it was observed that the coarse aggregates were not sufficiently exposed. It has been proved that PSV significantly affected the coefficient of friction in the case of compositions B and C. This is caused by large areas of exposed coarse aggregate. The best parameters were achieved for the EAC pavements

  9. Computational Flow Modeling of a Simplified Integrated Tractor-Trailer Geometry

    International Nuclear Information System (INIS)

    Salari, K.; McWherter-Payne, M.

    2003-01-01

    For several years, Sandia National Laboratories and Lawrence Livermore National Laboratory have been part of a consortium funded by the Department of Energy to improve fuel efficiency of heavy vehicles such as Class 8 trucks through aerodynamic drag reduction. The objective of this work is to demonstrate the feasibility of using the steady Reynolds-Averaged Navier-Stokes (RANS) approach to predict the flow field around heavy vehicles, with special emphasis on the base region of the trailer, and to compute the aerodynamic forces. In particular, Sandia's computational fluid dynamics code, SACCARA, was used to simulate the flow on a simplified model of a tractor-trailer vehicle. The results are presented and compared with NASA Ames experimental data to assess the predictive capability of RANS to model the flow field and predict the aerodynamic forces

  10. Trailer microclimate and calf welfare during fall-run transportation of beef calves in Alberta.

    Science.gov (United States)

    Goldhawk, C; Janzen, E; González, L A; Crowe, T; Kastelic, J; Pajor, E; Schwartzkopf-Genswein, K S

    2014-11-01

    Twenty-four commercial loads of beef calves (BW 300 ± 52 kg, mean ± SD) were evaluated for associations among transportation factors, in-transit microclimate, and calf welfare. Transport factors evaluated included vehicle speed, space allowance, compartment within trailer, and transit duration. Calves were transported for 7 h 44 min ± 4 h 15 min, with space allowances ranging from 0.56 to 1.17 m(2)/animal. Compartment within trailer, space allowance, and vehicle speed did not affect the difference between compartment ceiling-level and ambient temperatures during a 30-min period of steady-state microclimate. During the steady-state period, a 1°C increase in ambient temperature above the mean of 5.6°C was associated with a 0.62°C decrease in the difference between ceiling-level and ambient temperature (P ratio; P profitability and calf welfare.

  11. Improvement of the directional stability of passenger car trailer couplings with actively controlled steering

    Science.gov (United States)

    Desens, Jens

    The stabilization of pendulum oscillations of passenger car trailer couplings, using active steering, was examined. A linear model of the couplings was presented. Each axle was provided with a controller. The controllers were optimized, with regard to necessary sensors, in order to minimize costs. The rear and the front axles were provided with a control unit in order to compute the potential prevailing in the active steering of several axles. It was shown that the passenger car rear axle was the most suitable for coupling stabilization. The experiment was simulated, using a complex coupling model. The developed controller allowed the passenger car trailer to be driven at a speed higher than 150 km per hour.

  12. Implementation of Virtual Reality in the Conceptual Design of a Tractor Trailer

    OpenAIRE

    Arunesh Chandra; Pankaj Chandna

    2014-01-01

    Virtual reality (VR) is a rapidly emerging computer interface that attempts to immerse the user completely within an experimental recreation; thereby, greatly enhancing the overall impact and providing a much more intuitive link between the computer and the human participants. The main objective of this study is to design tractor trailer capable of meeting the customers’ requirements and suitable for rough conditions to be used in combination with a farm tractor in India....

  13. REDUCTION OF FUEL CONSUMPTION BY USINGAERODYNAMIC DOOR TOP PROFILE ON TRAILERAND SEMI-TRAILER

    OpenAIRE

    Topçu, İlhan; Çolakoğlu, Gülsüm Yeşim; Keleş, Uğur

    2016-01-01

    Fuel efficiency in vehicles is the important issue that dwells on for recent years not only for consumed fuel cost but also for the reduction of pollution caused by emission. There are several factor which affect the fuel consumption. One of them is aerodynamic resistance. Any decrease in the aerodynamic resistance has a great importance at fuel consumption. Especially fuel consumption in tractor trailer combination is much more than other automobiles. The main purpose of this report is to ex...

  14. MODELLING AND VALIDATION OF A TESTING TRAILER FOR ABS AND TYRE INTERACTION ON ROUGH TERRAIN

    OpenAIRE

    Žuraulis, Vidas; van der Merwe, Nico A.; Scholtz, Odette; Els, P. Schalk

    2017-01-01

    The main purpose of a vehicle anti-lock braking system (ABS) is to prevent the tyres from locking-up in order to brake efficiently whilst maintaining steering control and stability. Sport utility vehicles (SUV) are designed to drive on various roads under different driving conditions, making it challenging to identify optimal operating conditions for ABS algorithms to be implemented. This paper describes the development and modelling of a testing trailer that is designed to benefit the res...

  15. Performance-based analysis of current South African semi-trailer designs

    CSIR Research Space (South Africa)

    Thorogood, R

    2009-07-01

    Full Text Available , performance based standards, dynamic stability, tractor semi- trailers, directional response, static rollover threshold Introduction South African heavy vehicles are currently designed according to prescriptive standards designed and enforced... productivity. These include Central Tyre Inflation (CTI), on-board weighing, new materials such as Domex and vehicle satellite tracking, all leading towards increased payloads and reduced costs. There have also been improvements in technology...

  16. TRAILER Project Overview. Tagging, Recognition and Acknowledgment of Informal Learning ExpeRiences

    NARCIS (Netherlands)

    García-Peñalvo, Francisco J.; Zangrando, Valentina; García Holgado, Alicia; Conde González, Miguel Ángel; Seoane Pardo, Antonio; Alier Forment, Marc; Janssen, José; Griffiths, Dai; Mykowska, Aleksandra; Ribeiro Alves, Gustavo; Minovic, Miroslav

    2012-01-01

    García-Peñalvo, F. J., Zangrando, V., García Holgado, A., Conde González, M. Á., Seoane Pardo, A. M., Alier Forment, M., Janssen, J., et al. (2012). TRAILER Project Overview. Tagging, Recognition and Acknowledgment of Informal Learning ExpeRiences. In F. J. García, L. Vicent, M. Ribó, A. Climent, J.

  17. Nonlinear dynamic model for skidding behavior of angular contact ball bearings

    Science.gov (United States)

    Han, Qinkai; Chu, Fulei

    2015-10-01

    A three-dimensional nonlinear dynamic model is proposed to predict the skidding behavior of angular contact ball bearings under combined load condition. The centrifugal and gyroscopic effects induced by ball rotation and revolution, Hertz contact between the ball and inner/outer races, discontinuous contact between the ball and cage and elastohydrodynamic lubrication are considered in the model. Through comparisons with the tested results of the reference, the dynamic model is verified. Based upon these, variations of ball slipping speed with time and space are discussed for the bearing under combined load condition. It is shown that radial load leads to the fluctuations in the slipping velocity of the ball contacting with inner/outer races, especially for the ball in load-decreasing regions. Adding the radial load would significantly increase the amplitude and range of slipping velocity, indicating that the skidding becomes more serious. As the ball still withstands contact load in the load-decreasing region, large slipping velocity would increase the temperature of both bearing and lubricant oil, intensify the wear and then might shorten the bearing service life. Therefore, the radial load should be considered carefully in the design and monitoring of rotating machinery.

  18. Analysis and experimental kinematics of a skid-steering wheeled robot based on a laser scanner sensor.

    Science.gov (United States)

    Wang, Tianmiao; Wu, Yao; Liang, Jianhong; Han, Chenhao; Chen, Jiao; Zhao, Qiteng

    2015-04-24

    Skid-steering mobile robots are widely used because of their simple mechanism and robustness. However, due to the complex wheel-ground interactions and the kinematic constraints, it is a challenge to understand the kinematics and dynamics of such a robotic platform. In this paper, we develop an analysis and experimental kinematic scheme for a skid-steering wheeled vehicle based-on a laser scanner sensor. The kinematics model is established based on the boundedness of the instantaneous centers of rotation (ICR) of treads on the 2D motion plane. The kinematic parameters (the ICR coefficient , the path curvature variable and robot speed ), including the effect of vehicle dynamics, are introduced to describe the kinematics model. Then, an exact but costly dynamic model is used and the simulation of this model's stationary response for the vehicle shows a qualitative relationship for the specified parameters and . Moreover, the parameters of the kinematic model are determined based-on a laser scanner localization experimental analysis method with a skid-steering robotic platform, Pioneer P3-AT. The relationship between the ICR coefficient and two physical factors is studied, i.e., the radius of the path curvature and the robot speed . An empirical function-based relationship between the ICR coefficient of the robot and the path parameters is derived. To validate the obtained results, it is empirically demonstrated that the proposed kinematics model significantly improves the dead-reckoning performance of this skid-steering robot.

  19. Tyres and road surfaces : paper presented to the Second Internation Skid Prevention Conference, Columbus, Ohio, May 2-6, 1977.

    NARCIS (Netherlands)

    Schlösser, L.H.M.

    1999-01-01

    The study concerning the contact between a tyre and a road surface was conducted by means of an experimental multifactor investigation. It was attempted not only to determine the effect of variables such as type of road surface and speed on the skid resistance but also interaction effects. In the

  20. THE EFFECTS OF CONTROLLED SKIDDING TECHNIQUE ON RESIDUAL STAND DAMAGE AND GROUND EXPOSURE IN SWAMP FOREST LOGGING

    Directory of Open Access Journals (Sweden)

    Sona Suhartana

    2004-11-01

    • The  average of ground  exposure  caused by controlled  skidding  technique  and conventionalskidding technique was respectively   16.06% and 18.4%.  The difference of 2.34%  was significant at 95%.

  1. Effect of tree thinning and skidding trails on hydrological connectivity in two Japanese forest catchments

    Science.gov (United States)

    López-Vicente, Manuel; Sun, Xinchao; Onda, Yuichi; Kato, Hiroaki; Gomi, Takashi; Hiraoka, Marino

    2017-09-01

    Land use composition and patterns influence the hydrological response in mountainous and forest catchments. In plantation forest, management operations (FMO) modify the spatial and temporal dynamics of overland flow processes. However, we found a gap in the literature focussed on modelling hydrological connectivity (HC) in plantation forest under different FMO. In this study, we simulated HC in two steep paired forest subcatchments (K2 and K3, 33.2 ha), composed of Japanese cypress (Chamaecyparis obtusa Endl.) and Japanese cedar (Cryptomeria japonica D. Don) plantations (59% of the total area) against a tree thinning intensity of 50% at different time. Additionally, construction of new skidding trails and vegetation recovery was simulated on five thinning-based scenarios that covered a 40-month test period (July 2010 - October 2013). As a future scenario, six check-dams located in the main streams were proposed to reduce sediment and radionuclide delivery. An updated version of Borselli's index of runoff and sediment connectivity was run, using the D-infinity flow accumulation algorithm and exploiting three 0.5-m resolution digital elevation models. On the basis of the pre-FMO scenario, HC increased at catchment scale owing to tree thinning and the new skidding trails. This change was more noticeable within the area affected by the FMO, where HC increased by 11.4% and 10.5% in the cypress and cedar plantations in K2 respectively and by 8.8% in the cedar plantation in K3. At hillslope plot and stream scales, the evolution in the values of HC was less evident, except the increment (by 5.4%) observed in the streams at K2 after the FMO. Progressive vegetation recovery after the FMO triggered a slight reduction of connectivity in all compartments of both subcatchments. Forest roads and especially skidding trails presented the highest values of HC, appearing as the most efficient features connecting the different vegetation patches with the stream network. The spatial

  2. An investigation of drag reduction for tractor trailer vehicles with air deflector and boattail. [wind tunnel tests

    Science.gov (United States)

    Muirhead, V. U.

    1981-01-01

    A wind tunnel investigation was conducted to determine the influence of several physical variables on the aerodynamic drag of a trailer model. The physical variables included: a cab mounted wind deflector, boattail on trailer, flow vanes on trailer front, forced transition on trailer, and decreased gap between tractor and trailer. Tests were conducted at yaw angles (relative wind angles) of 0, 5, 10, 20, and 30 degrees and Reynolds numbers of 3.58 x 10 to the 5th power 6.12 x 10 to the 5th power based upon the equivalent diameter of the vehicles. The wind deflector on top of the cab produced a calculated reduction in fuel consumption of about 5 percent of the aerodynamic portion of the fuel budget for a wind speed of 15.3 km/hr (9.5 mph) over a wind angle range of 0 deg to 180 deg and for a vehicle speed of 88.5 km/hr (55 mph). The boattail produced a calculated 7 percent to 8 percent reduction in fuel consumption under the same conditions. The decrease in gap reduced the calculated fuel consumption by about 5 percent of the aerodynamic portion of the fuel budget.

  3. Analytical approach to determine vertical dynamics of a semi-trailer truck from the point of view of goods protection

    Science.gov (United States)

    Pidl, Renáta

    2018-01-01

    The overwhelming majority of intercontinental long-haul transportations of goods are usually carried out on road by semi-trailer trucks. Vibration has a major effect regarding the safety of the transport, the load and the transported goods. This paper deals with the logistics goals from the point of view of vibration and summarizes the methods to predict or measure the vibration load in order to design a proper system. From these methods, the focus of this paper is on the computer simulation of the vibration. An analytical method is presented to calculate the vertical dynamics of a semi-trailer truck containing general viscous damping and exposed to harmonic base excitation. For the purpose of a better understanding, the method will be presented through a simplified four degrees-of-freedom (DOF) half-vehicle model, which neglects the stiffness and damping of the tires, thus the four degrees-of-freedom are the vertical and angular displacements of the truck and the trailer. From the vertical and angular accelerations of the trailer, the vertical acceleration of each point of the platform of the trailer can easily be determined, from which the forces acting on the transported goods are given. As a result of this paper the response of the full platform-load-packaging system to any kind of vehicle, any kind of load and any kind of road condition can be analyzed. The peak acceleration of any point on the platform can be determined by the presented analytical method.

  4. El book trailer en la promoción del relato

    OpenAIRE

    Tabernero Sala, Rosa

    2013-01-01

    El book trailer se está instaurando en el ámbito de la literatura infantil y juvenil, especialmente en lo que concierne al álbum y al libro ilustrado, como un instrumento de promoción del libro con unos recursos narrativos dignos de estudio en lo que concierne a la formación de lectores. Los objetivos de la investigación presentada son los siguientes: aislar y establecer las circunstancias de diversa procedencia que han originado la presencia de este recurso en el ámbito de la Literatura Infa...

  5. Social networks, time homeless, and social support: A study of men on Skid Row.

    Science.gov (United States)

    Green, Harold D; Tucker, Joan S; Golinelli, Daniela; Wenzel, Suzanne L

    2013-12-18

    Homeless men are frequently unsheltered and isolated, disconnected from supportive organizations and individuals. However, little research has investigated these men's social networks. We investigate the structure and composition of homeless men's social networks, vis-a-vis short- and long-term homelessness with a sample of men drawn randomly from meal lines on Skid Row in Los Angeles. Men continuously homeless for the past six months display networks composed of riskier members when compared to men intermittently homeless during that time. Men who report chronic, long-term homelessness display greater social network fragmentation when compared to non-chronically homeless men. While intermittent homelessness affects network composition in ways that may be addressable with existing interventions, chronic homelessness fragments networks, which may be more difficult to address with those interventions. These findings have implications for access to social support from network members which, in turn, impacts the resources homeless men require from other sources such as the government or NGOs.

  6. Astronauts Stefanyshyn-Piper, Lindsey and Currie greet First Lady Hillary Clinton at the Skid Strip

    Science.gov (United States)

    1999-01-01

    First Lady Hillary Rodham Clinton is greeted by Astronauts (from left) Heidemarie M. Stefanyshyn-Piper, Steven W. Lindsey, and Nancy Jane Currie upon Mrs. Clinton's arrival at the Skid Strip at Cape Canaveral Air Station. She and her daughter, Chelsea (far right) are here to view the launch of Space Shuttle mission STS- 93, scheduled for 12:36 a.m. EDT July 20. Much attention has been generated over the launch due to Commander Eileen M. Collins, the first woman to serve as commander of a Shuttle mission. The primary payload of the five-day mission is the Chandra X-ray Observatory, which will allow scientists from around the world to study some of the most distant, powerful and dynamic objects in the universe. The new telescope is 20 to 50 times more sensitive than any previous X-ray telescope and is expected to unlock the secrets of supernovae, quasars and black holes.

  7. INVESTIGATION OF SKID RESISTANCE PROPERTIES OF AGGREGATES USED IN AFYONKARAHISAR CITY PAVEMENTS

    Directory of Open Access Journals (Sweden)

    Cahit GÜRER

    2007-02-01

    Full Text Available For a safe driving, pavement surface aggregates must have superior physical and mechanical properties. Although high rate of accidents is mainly due to drivers errors, pavement surface properties affect significantly occurance of traffic accidents. The most important factor in the highways leading to traffic accidents are the skid resistance. In this study, adherence test with Vialit plate, Nicholson stripping test, accelerated polishing test (PSV were carried out on four aggregate samples which were used in seal coats and hot mix asphalt in Afyonkarahisar City. Results were compared with values of specification limits. The results showed that particularly limestone aggregates polishing stone values are poorer than volcanic aggregates sample. Especially, use of aggregates having a good polishing resistance, will be an important factor increasing driving safety.

  8. The Huygens probe is prepared for transport from the Skid Strip, CCAS

    Science.gov (United States)

    1997-01-01

    The Huygens probe, which will study the clouds, atmosphere and surface of Saturn's largest moon, Titan, as part of the Cassini mission to Saturn, is prepared for transport from the Skid Strip, Cape Canaveral Air Station (CCAS), after being off-loaded from a plane. The probe was designed and developed for the European Space Agency (ESA) by a European industrial consortium led by Aerospatiale as prime contractor. Over the past year, it was integrated and tested at the facilities of Daimler Benz Aerospace Dornier Satellitensysteme in Germany. The probe will be mated to the Cassini orbiter, which was designed and assembled at NASA's Jet Propulsion Laboratory in California. The Cassini launch is targeted for October 6 from CCAS aboard a Titan IVB/Centaur expendable launch vehicle. After arrival at Saturn in 2004, the probe will be released from the Cassini orbiter to slowly descend through the Titan atmosphere to the moon's surface.

  9. Piezoelectric-based actuators for improved tractor-trailer performance (Conference Presentation)

    Science.gov (United States)

    Menicovich, David; Amitay, Michael; Gallardo, Daniele

    2017-04-01

    The application of piezo-electrically-driven synthetic-jet-based active flow control to reduce drag on tractor-trailers and to improve thermal mixing in refrigerated trailers was explored on full-scale tests. The active flow control technique that is being used relies on a modular system comprised of distributed, small, highly efficient actuators. These actuators, called synthetic jets, are jets that are synthesized at the edge of an orifice by a periodic motion of a piezoelectric diaphragm(s) mounted on one (or more) walls of a sealed cavity. The synthetic jet is zero net mass flux (ZNMF), but it allows momentum transfer to flow. It is typically driven near diaphragm and/or cavity resonance, and therefore, small electric input [O(10W)] is required. Another advantage of this actuator is that no plumbing is required. The system doesn't require changes to the body of the truck, can be easily reconfigured to various types of vehicles, and consumes small amounts of electrical power from the existing electrical system of the truck. The actuators are operated in a closed feedback loop based on inputs received from the tractor's electronic control unit, various system components and environmental sensors. The data are collected and processed on-board and transmitted to a cloud-based data management platform for further big data analytics and diagnostics. The system functions as a smart connected product through the interchange of data between the physical truck-mounted system and its cloud platform.

  10. Analysis of the 241SY101 pump removal trailer and the 241SY101 strongback

    International Nuclear Information System (INIS)

    Coverdell, B.L.

    1995-09-01

    The purpose of the calculations contained in the attached appendix is to determine the vibrational stability of the following combination (The Combination); shipping container, strongback and trailer. The vibrational stability of The Combination will be determined with the shipping container and strongback in the upright position. If the natural frequency of The Combination coincides with the input frequency and no damping is present, resonance will occur. The result of this is that the natural frequency of the Combination must be calculated as well as the input frequency. The input frequency in this case is caused by wind. Due to their geometrical complexity the upper and lower hydraulic clevises were analyzed for structural adequacy by using finite-element analysis (FEA). The FEA software COSMOS/M version 1.70 was used to model the upper and lower hydraulic clevis. All designs are in accordance with Standard Architectural-Civil Design Criteria, Design Loads for Facilities (DOE-RL 1989) and are safety class 3. The design and fabrication of each component is in accordance with American Institute of Steel Construction, Manual of Steel Construction, (AISC, 1989). The analyses contained in this document reflects the as-built condition of the 241SY101 hydraulic trailer

  11. Enhanced fuel efficiency on tractor-trailers using synthetic jet-based active flow control

    Science.gov (United States)

    Amitay, Michael; Menicovich, David; Gallardo, Daniele

    2016-04-01

    The application of piezo-electrically-driven synthetic-jet-based active flow control to reduce drag on tractor-trailers was explored experimentally in wind tunnel testing as well as full-scale road tests. Aerodynamic drag accounts for more than 50% of the usable energy at highway speeds, a problem that applies primarily to trailer trucks. Therefore, a reduction in aerodynamic drag results in large saving of fuel and reduction in CO2 emissions. The active flow control technique that is being used relies on a modular system comprised of distributed, small, highly efficient actuators. These actuators, called synthetic jets, are jets that are synthesized at the edge of an orifice by a periodic motion of a piezoelectric diaphragm(s) mounted on one (or more) walls of a sealed cavity. The synthetic jet is zero net mass flux (ZNMF), but it allows momentum transfer to flow. It is typically driven near diaphragm and/or cavity resonance, and therefore, small electric input [O(10W)] is required. Another advantage of this actuator is that no plumbing is required. The system doesn't require changes to the body of the truck, can be easily reconfigured to various types of vehicles, and consumes small amounts of electrical power from the existing electrical system of the truck. Preliminary wind tunnel results showed up to 18% reduction in fuel consumption, whereas road tests also showed very promising results.

  12. Novel method for on-road emission factor measurements using a plume capture trailer.

    Science.gov (United States)

    Morawska, L; Ristovski, Z D; Johnson, G R; Jayaratne, E R; Mengersen, K

    2007-01-15

    The method outlined provides for emission factor measurements to be made for unmodified vehicles driving under real world conditions at minimal cost. The method consists of a plume capture trailer towed behind a test vehicle. The trailer collects a sample of the naturally diluted plume in a 200 L conductive bag and this is delivered immediately to a mobile laboratory for subsequent analysis of particulate and gaseous emissions. The method offers low test turnaround times with the potential to complete much larger numbers of emission factor measurements than have been possible using dynamometer testing. Samples can be collected at distances up to 3 m from the exhaust pipe allowing investigation of early dilution processes. Particle size distribution measurements, as well as particle number and mass emission factor measurements, based on naturally diluted plumes are presented. A dilution profile relating the plume dilution ratio to distance from the vehicle tail pipe for a diesel passenger vehicle is also presented. Such profiles are an essential input for new mechanistic roadway air quality models.

  13. Time consumption and productivity of skidding Silver fir (Abies alba Mill. round wood in reduced accessibility conditions: a case study in windthrow salvage logging form Romanian Carpathians

    Directory of Open Access Journals (Sweden)

    Stelian Alexandru Borz

    2013-11-01

    Full Text Available Natural calamities (especially windthrows may generate difficultwork conditions in timber harvesting operations. When associated with the reduced accessibility conditions, the work conditions become even harder. This study investigates the time consumptions on specific work elements in timber skidding, develops time prediction models for timber skidding work elements and assesses the production rates for timber skidding in reduced accessibility stands where windthrow salvage cuttings were applied.Following a time study done for two skidders (TAF 690 OP and TAF 657operating simultaneously in the same felling area, it has been found that, in average, in a delay free skidding cycle time, lateral winching accounted for a share of 26-33%, on-trail skidding accounted for a share of 64-71% and landing operations accounted for a share of 3%. Total delays accounted for 51% and 43% of the total work time in the case of TAF 690 OP skidder and TAF 657 skidder, respectively. Regression models for lateral winching(both skidders revealed that the winching distance and the number of logs were the relevant predictors for the time consumption estimation (p<0.01, whereas in the case of on-trail skidding only the skidding distance was relevant (p <0.01. For the overall skidding operation (excluding landingoperations winching and skidding distances were found as relevantpredictors (p <0.01 for 690 OP, whereas the number of logs became anadditional relevant predictor for 657. In conditions of an average winching distance of 19.90 m and an average on-trail skidding distance of 980.32 m, the time study yielded a net production rate of 7.70 m3 h-1 and a gross production rate of 3.75 m3 h-1 in the case of TAF 690 OP skidder. By comparison, in the case of TAF 657 skidder, for an average winching distance of 22.86 m and an average on-trail skidding distance of 871.00 m, the net and gross production rates were of 5.61 m3 h-1 and 3.20 m3 h-1 respectively.

  14. Time consumption and productivity of skidding Silver fir (Abies alba Mill. round wood in reduced accessibility conditions: a case study in windthrow salvage logging form Romanian Carpathians

    Directory of Open Access Journals (Sweden)

    Stelian Alexandru Borz

    2013-12-01

    Full Text Available Natural calamities (especially windthrows may generate difficult work conditions in timber harvesting operations. When associated with the reduced accessibility conditions, the work conditions become even harder. This study investigates the time consumptions on specific work elements in timber skidding, develops time prediction models for timber skidding work elements and assesses the production rates for timber skidding in reduced accessibility stands where windthrow salvage cuttings were applied. Following a time study done for two skidders (TAF 690 OP and TAF 657 operating simultaneously in the same felling area, it has been found that, in average, in a delay free skidding cycle time, lateral winching accounted for a share of 26-33%, on-trail skidding accounted for a share of 64-71% and landing operations accounted for a share of 3%.Total delays accounted for 51% and 43% of the total work time in the case of TAF 690 OP skidder and TAF 657skidder respectively. Regression models for lateral winching (both skidders revealed that the winching distance and the number of logs were the relevant predictors for the time consumption estimation (p<0.01, whereas in the case of on-trail skidding only the skidding distance was relevant (p<0.01. For the overall skidding operation (excluding landing operations winching and skidding distances were found as relevant predictors (p<0.01 in case of TAF 690 OP, whereas the number of logs became an additional relevant predictor in case of TAF 657.In conditions of an average winching distance of 19.90 m and an average on-trail skidding distance of 980.32 m, the time study yielded a net production rate of 7.70 m3h-1 and a gross production rate of 3.75 m3h-1 in the case of TAF 690 OP skidder. By comparison, in the case of TAF 657 skidder, for an average winching distance of 22.86 m and an average on-trail skidding distance of 871.00 m, the net and gross production rates were of 5.61 m3h-1 and 3.20 m3h-1 respectively.

  15. 41 CFR 302-7.20 - If my HHG shipment includes an item (e.g., boat, trailer, ultralight vehicle) for which a weight...

    Science.gov (United States)

    2010-07-01

    ... includes an item (e.g., boat, trailer, ultralight vehicle) for which a weight additive is assessed by the...) General Rules § 302-7.20 If my HHG shipment includes an item (e.g., boat, trailer, ultralight vehicle) for which a weight additive is assessed by the HHG carrier, am I responsible for payment? If your HHG...

  16. Corrective action investigation plan: Area 2 Photo Skid 16 Wastewater Pit, Corrective Action Unit 332. Revision 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-01-01

    This Corrective Action Investigation Plan (CAIP) contains a detailed description and plan for an environmental investigation of the Area 2 Photo Skid 16 Wastewater Pit. The site is located in Area 2 of the Nevada Test Site. The Photo Skid Wastewater Pit was used for disposal of photochemical process waste, and there is a concern that such disposal may have released photochemicals and metals to the soil beneath the pit and adjacent to it. The purpose of this investigation is to identify the presence and nature of contamination present in and adjacent to the wastewater pit and to determine the appropriate course of environmental response action for the site. The potential courses of action for the site are clean closure through remediation, closure in place (with or without remediation), or no further action.

  17. 49 CFR 579.24 - Reporting requirements for manufacturers of 5,000 or more trailers annually.

    Science.gov (United States)

    2010-10-01

    ... incident, and whether the incident involved a fire, coded as follows: 02 suspension, 03 service brake..., 16 structure, 17 latch, 19 tires, 20 wheels, 21 trailer hitch, 23 fire, 98 where a system or... with more than one type of service brake system (i.e., hydraulic and air), the information required by...

  18. Auxiliary brakes for trucks : research into the behaviour of a tractor-semi-trailer combination during emergency breaking.

    NARCIS (Netherlands)

    Dijks, A. Blijswijk, W.A.M. van Genugten, J. van Meeke, G.J.M. & Schlösser, L.H.M.

    1976-01-01

    The purpose of the research was to obtain an insight into various secondary braking systems for goods vehicles. Practical tests were carried out with a tractor- semi-trailer combination. The performance of various split braking systems as well as spring brake actuators are shown. With nearly all of

  19. 77 FR 17568 - Notice of Receipt of Petition for Decision That Nonconforming 2005 Ifor Williams LM85G Trailers...

    Science.gov (United States)

    2012-03-26

    ...-0030, Notice 1] Notice of Receipt of Petition for Decision That Nonconforming 2005 Ifor Williams LM85G... Safety Administration (NHTSA) of a petition for a decision that 2005 Ifor Williams LM85G trailers that... capable of being altered to comply with, all applicable FMVSS based on destructive test data or such other...

  20. Driver assistance system for passive multi-trailer vehicles with haptic steering limitations on the leading unit.

    Science.gov (United States)

    Morales, Jesús; Mandow, Anthony; Martínez, Jorge L; Reina, Antonio J; García-Cerezo, Alfonso

    2013-04-03

    Driving vehicles with one or more passive trailers has difficulties in both forward and backward motion due to inter-unit collisions, jackknife, and lack of visibility. Consequently, advanced driver assistance systems (ADAS) for multi-trailer combinations can be beneficial to accident avoidance as well as to driver comfort. The ADAS proposed in this paper aims to prevent unsafe steering commands by means of a haptic handwheel. Furthermore, when driving in reverse, the steering-wheel and pedals can be used as if the vehicle was driven from the back of the last trailer with visual aid from a rear-view camera. This solution, which can be implemented in drive-by-wire vehicles with hitch angle sensors, profits from two methods previously developed by the authors: safe steering by applying a curvature limitation to the leading unit, and a virtual tractor concept for backward motion that includes the complex case of set-point propagation through on-axle hitches. The paper addresses system requirements and provides implementation details to tele-operate two different off- and on-axle combinations of a tracked mobile robot pulling and pushing two dissimilar trailers.

  1. Driver Assistance System for Passive Multi-Trailer Vehicles with Haptic Steering Limitations on the Leading Unit

    Directory of Open Access Journals (Sweden)

    Antonio J. Reina

    2013-04-01

    Full Text Available Driving vehicles with one or more passive trailers has difficulties in both forward and backward motion due to inter-unit collisions, jackknife, and lack of visibility. Consequently, advanced driver assistance systems (ADAS for multi-trailer combinations can be beneficial to accident avoidance as well as to driver comfort. The ADAS proposed in this paper aims to prevent unsafe steering commands by means of a haptic handwheel. Furthermore, when driving in reverse, the steering-wheel and pedals can be used as if the vehicle was driven from the back of the last trailer with visual aid from a rear-view camera. This solution, which can be implemented in drive-by-wire vehicles with hitch angle sensors, profits from two methods previously developed by the authors: safe steering by applying a curvature limitation to the leading unit, and a virtual tractor concept for backward motion that includes the complex case of set-point propagation through on-axle hitches. The paper addresses system requirements and provides implementation details to tele-operate two different off- and on-axle combinations of a tracked mobile robot pulling and pushing two dissimilar trailers.

  2. Least Limiting Water Range and Load Bearing Capacity of Soil under Types of Tractor-Trailers for Mechanical Harvesting of Green Sugarcane

    Directory of Open Access Journals (Sweden)

    Antonio Higino Frederico Pereira

    2015-12-01

    Full Text Available ABSTRACT The expansion of the sugarcane industry in Brazil has intensified the mechanization of agriculture and caused effects on the soil physical quality. The purpose of this study was to evaluate the limiting water range and soil bearing capacity of a Latossolo Vermelho distroférrico típico (Rhodic Hapludox under the influence of different tractor-trailers used in mechanical sugarcane harvesting. The experiment was arranged in a randomized block design with five replications. The treatments consisted of green sugarcane harvesting with: harvester without trailer (T1; harvester with two trailers with a capacity of 10 Mg each (T2; harvester with trailer with a capacity of 20 Mg (T3 and harvester and truck with trailer with a capacity of 20 Mg (10 Mg per compartment (T4. The least limiting water range and soil bearing capacity were evaluated. The transport equipment to remove the harvested sugarcane from the field (trailer at harvest decreased the least limiting water range, reducing the structural soil quality. The truck trailer caused the greatest impact on the soil physical properties studied. The soil load bearing capacity was unaffected by the treatments, since the pressure of the harvester (T1 exceeded the pre-consolidation pressure of the soil.

  3. Damages to soil and tree species by cable-skidding in Caspian forests of Iran

    International Nuclear Information System (INIS)

    Tavankar, Farzam; Bonyad, Amir E.; Nikooy, Mehrdad; Picchio, Rodolfo; Venanzi, Rachele; Calienno, Luca

    2017-01-01

    Aim of study: The main aims of this study were to determine of damage level to residual stand and soil disturbance from mechanized selection logging. Area of study: Mixed beech stands in Caspian forests, northern Iran. Material and methods: Point-transect and systematic plot sampling were used for assessing damages to soil and trees, respectively. Main results: 89% of forest soil area was undisturbed or shallow disturbed, and 5.2% was deep disturbed. Soil bulk density of top 10 cm in the winching corridors, ruts and skid trails were increased 10.7%, 20.6% and 32.1% respectively than controlled area. Frequency of damages to regeneration and trees were 12% and 11.2%. The frequency of damages to regeneration was increased with increasing of their heights, but frequency of damages to trees was decreased with increasing of their diameter. The most type of damages was bole wounds in sizes of 100 to 200 cm2 within 1 m from the ground level, and deep wounds. The frequency of damages was different in tree species (p = 0.001). The mean size of bole wounds was 174 cm2, and the mean height of bole wounds was 70 cm from ground level. The intensity of wounds on trees bole were decreased with increasing of their heights from ground level (p = 0.02), while their sizes were increased (p = 0.001). Research highlights: Winching of logs was the main cause of damages to soil and residual stand. The detailed planning strategy will reduce damage to level which is acceptable and predictable.

  4. Damages to soil and tree species by cable-skidding in Caspian forests of Iran

    Energy Technology Data Exchange (ETDEWEB)

    Tavankar, Farzam; Bonyad, Amir E.; Nikooy, Mehrdad; Picchio, Rodolfo; Venanzi, Rachele; Calienno, Luca

    2017-11-01

    Aim of study: The main aims of this study were to determine of damage level to residual stand and soil disturbance from mechanized selection logging. Area of study: Mixed beech stands in Caspian forests, northern Iran. Material and methods: Point-transect and systematic plot sampling were used for assessing damages to soil and trees, respectively. Main results: 89% of forest soil area was undisturbed or shallow disturbed, and 5.2% was deep disturbed. Soil bulk density of top 10 cm in the winching corridors, ruts and skid trails were increased 10.7%, 20.6% and 32.1% respectively than controlled area. Frequency of damages to regeneration and trees were 12% and 11.2%. The frequency of damages to regeneration was increased with increasing of their heights, but frequency of damages to trees was decreased with increasing of their diameter. The most type of damages was bole wounds in sizes of 100 to 200 cm2 within 1 m from the ground level, and deep wounds. The frequency of damages was different in tree species (p = 0.001). The mean size of bole wounds was 174 cm2, and the mean height of bole wounds was 70 cm from ground level. The intensity of wounds on trees bole were decreased with increasing of their heights from ground level (p = 0.02), while their sizes were increased (p = 0.001). Research highlights: Winching of logs was the main cause of damages to soil and residual stand. The detailed planning strategy will reduce damage to level which is acceptable and predictable.

  5. Hazardous Waste Treatment Facility and skid-mounted treatment systems at Los Alamos

    International Nuclear Information System (INIS)

    Lussiez, G.W.; Zygmunt, S.J.

    1994-01-01

    To centralize treatment, storage, and areas for hazardous wastes, Los Alamos National Laboratory has designed a 1115 m2 hazardous waste treatment facility. The facility will house a treatment room for each of four kinds of wastes: nonradioactive characteristic wastes, nonradioactive listed wastes, radioactive characteristic wastes, and radioactive listed wastes. The facility will be used for repacking labpacks; bulking small organic waste volumes; processing scintillation vials; treating reactives such as lithium hydride and pyrophoric uranium; treating contaminated solids such as barium sand; treating plating wastes and other solutions with heavy metals and oxidizing organics: Separate treatment rooms will allow workers to avoid mixing waste types and prevent cross-contamination. The ventilation air from the treatment areas may contain hazardous or radioactive dust. Gas may also leak from process equipment. The gas treatment process includes separating solids and gases and neutralization or adsorption of the hazardous gases. The ventilation air from each room will first be filtered before being scrubbed in a common gas caustic scrubber on an outside pad. There are two levels of exhaust in each treatment room, one for heavy gases and another for light gases. Several features help mitigate or eliminate hazards due to spills and releases: each treatment room is sealed and under slight negative pressure; each room has its own HEPA filtration; to avoid mixing of incompatible wastes and reagents, portable individual spill-containment trays are used for skids, to limit the danger of spills, the waste is directly transferred from outside storage to the treatment room; to mitigate the consequences of a gas release in the room, mobile hoods are connected to the exhaust-air treatment system; the floor, walls, ceilings, fixtures, ducts, and piping are made of acid-resistant material or are coated

  6. New non-skid chains for modern vehicles; Neue Gleitschutzketten fuer moderne Fahrzeuge

    Energy Technology Data Exchange (ETDEWEB)

    Deger, W. [RUD Kettenfabrik Rieger und Dietz GmbH und Co., Aalen (Germany)

    1998-12-31

    Despite continued improvement in winter-tyres and more use of electric devices for improved driving stability like traction control and ABS, non skid chains are a renowned quantity when talking about mobility on wintry roads and extreme cross country conditions. Driving on icy and snowy mountain roads and crossing boggy terrain is often only possible when using snow or traction chains. The fitting of snow or traction chains onto the tyre increases considerably the transmission of tractive forces in the contact area of the tyre due to additional chain elements between the tyre and road/track. The constructive design of a traction chain is continually optimised in order to respond to the ever increasing demands of the car industry and the customer with regard to driving dynamics, driving comfort, system integration and handling. Through intensive collaboration with the car industry and internally and externally conducted tests, the parameters required and expected from us are constantly adapted to the highest technical standards and requirements asked for by the market. (orig.) [Deutsch] Trotz staendig verbesserter Winterreifen und verstaerkt zum Einsatz kommender elektronischer Systeme zur Verbesserung der Fahrstabilitaet wie ASR und ABS sind Gleitschutzketten eine feste Groesse, wenn es um Mobilitaet unter winterlichen Strassen- und extremen Gelaendebedingungen geht. Das Befahren von vereisten und verschneiten Bergstrassen und das Durchqueren von schlammigem Gelaende wird durch Gleitschutzketten beziehungsweise Gelaendeketten oft erst moeglich. Durch das Auflegen von Gleitschutz- beziehungsweise Gelaendeketten auf den Reifen wird die Kraftuebertragung in der Reifenaufstandsflaeche, durch zusaetzliche Kettenelemente zwischen Reifen und Fahrbahn, entscheidend erhoeht. Der konstruktive Aufbau einer Gleitschutzkette unterliegt einer staendigen Optimierung, um den wachsenden Anforderungen der Automobilindustrie und des Kunden, hinsichtlich der Fahrdynamik, des

  7. Potential of the tractor-trailer and container segments as entry markets for a proposed refrigeration technology

    Energy Technology Data Exchange (ETDEWEB)

    Smith, S.A.; Davis, L.J.; Garrett, B.A.

    1987-05-01

    The refrigerated trailer and container segments of the transportation industry are evaluated as potential entry markets for a proposed absorption refrigeration technology. To perform this analysis the existing transportation refrigeration industry is characterized; this includes a description of the current refrigeration technology, rating systems, equipment manufacturers, maintenance requirements, and sales trends. This information indicates that the current transportation refrigeration industry is composed of two major competitors, Thermo King and Carrier. In addition, it has low profit potential, some barriers to entry and low growth potential. Data are also presented that characterize the transportation refrigeration consumers, specifically, major groups, market segmentation, consumer decision process, and buying criteria. This consumer information indicates that the majority of refrigerated trailer consumers are private carriers, and that the majority of refrigerated container consumers are shipping companies. Also, these consumers are primarily interested in buying reliable equipment at a low price, and are quite satisfied with existing refrigeration equipment.

  8. Trailer temperature and humidity during winter transport of cattle in Canada and evaluation of indicators used to assess the welfare of cull beef cows before and after transport.

    Science.gov (United States)

    Goldhawk, C; Janzen, E; González, L A; Crowe, T; Kastelic, J; Kehler, C; Siemens, M; Ominski, K; Pajor, E; Schwartzkopf-Genswein, K S

    2015-07-01

    The current study evaluated 17 loads of cull beef cows transported in Canadian winter conditions to assess in-transit temperature and humidity, evaluation of events during loading and unloading, and animal condition and bruising. Regardless of the use of boards to block ventilation holes in trailers, temperatures were higher within trailers than at ambient locations during both travel and stationary periods (P cow transport may be related to pretransport animal condition and management of unloading.

  9. Concept Design of Trailor Ferry Service to Carry 150 Trailers Between Jacksonville, FL and Bridgeport, CT of USA

    Science.gov (United States)

    Sindagi, S. C.; Sandhu, B. S.

    2015-04-01

    With the increased load on highways, today there is a need to develop alternate ways to transport goods within the sovereignty. The use of ships to transport goods has always been the primary method of transporting goods across the seas but it can also be used to transport goods within the country. This way we can reduce the load on highways which at this point of time serve as the primary method of transportation. Worldwide very few ferries are in operation which transports 100-150 Trailers between two ports. Catching on this opportunity for design, construction and operation of vessels, a survey for possible routes in United States of America which will transport 150 Trailers has been conducted by various authorities and organizations. The challenge here is to determine the parameters of the vessel and design a fleet of vessels that could carry trailers along with their tractors within the least possible time and in with least possible freight between Jacksonville, FL and Bridgeport, CT of United States of America. The primary aim of the work presented here is to propose a design with fleet in such a way that each day 150 trailers could be loaded and unloaded at each of the two mentioned ports. An analysis of the route between the ports brought out various primary parameters like the distance, weather, different load lines to be encountered and also several size constraints that the vessel needs to adhere to, in order to ply smoothly on this route. The vessel is designed as per the Guidelines for ships operating in international waters. The economic analysis of the project was performed spanning over 20 years and the best freight was found out which would be most profitable for the company as well as be a good value for money for the customers.

  10. Reducing heat transfer across the insulated walls of refrigerated truck trailers by the application of phase change materials

    International Nuclear Information System (INIS)

    Ahmed, Mashud; Meade, Oliver; Medina, Mario A.

    2010-01-01

    A general estimate shows that 80% of communities across the United States receive their goods exclusively by transport trucks, of which a significant number are climate-controlled because they carry perishable goods, pharmaceutical items and many other temperature-sensitive commodities. Keeping the inside of a truck trailer at a constant temperature and relative humidity requires exact amounts of heat and/or moisture management throughout the shipment period, which is regulated via small refrigeration units, placed outside the truck, that operate by burning fuel. These trucks, known as refrigerated truck trailers, are the focus of this paper. In the research presented herein, the conventional method of insulation of the refrigerated truck trailer was modified using phase change materials (PCMs). The limited research carried out in refrigerated transport compared to other refrigeration processes has left spaces for innovative solutions in this area. The research investigated the inclusion of paraffin-based PCMs in the standard trailer walls as a heat transfer reduction technology. An average reduction in peak heat transfer rate of 29.1% was observed when all walls (south, east, north, west, and top) were considered. For individual walls, the peak heat transfer rate was reduced in the range of 11.3-43.8%. Overall average daily heat flow reductions into the refrigerated compartment of 16.3% were observed. These results could potentially translate into energy savings, pollution abatement from diesel-burning refrigeration units, refrigeration equipment size reduction, and extended equipment operational life. The research and its results will help to better understand the scope of this technology.

  11. Effect of Uphill Flexible Pavements on The Damaging Effect Of Full-Trailer Trucks With Tandem Front Axles

    Directory of Open Access Journals (Sweden)

    Sabah Said Razouki

    2017-08-01

    Full Text Available The effect of traffic on flexible pavements can be expressed in terms of truck equivalence factors. This paper presents a study on the effect of uphill pavements on the damaging effect (truck equivalence factors of two types of full-trailer trucks with tandem front axles. Axle load and geometrical characteristics survey on the two types of full-trailer trucks were carried out for determining the data needed in this study. In addition, uphill slope survey in Kerbala city was done and the data of uphill slope of other Iraqi cities were obtained from previous surveys. The paper reveals that the uphill pavement gradient causes significant increase in truck equivalence factors. In addition, the research reveals that there are many factors affecting the truck equivalence factors on uphill flexible pavements, including the total weight of full-trailer, H/B ratio (height of center of gravity to the wheel base of the truck, magnitude of uphill slope, and the structural number (SN.This work shows the importance of considering the effect of uphill slope in the design of flexible pavements on steep uphill slopes.

  12. Thermoelastic analysis for the fuel claddings of the nuclear power reactor at Atucha in the skid's region

    International Nuclear Information System (INIS)

    Sanchez Sarmiento, Gustavo; Basombrio, F.G.

    1979-01-01

    For the fuel elements of the Nuclear Power Reactor at Atucha, a two-dimensional thermoelastic analysis has been made in the region of the skids of the fuel cladding, when the gap between them and the fuel rod separator's support becomes zero. In such a case the latter forces exert on the skids an elastic reaction opposite to the cladding's expansion. The internal pressure reaching the yield stress for the cladding material has been calculated, as a function of the initial gap; for several possible fuel rod locations within the separator; for the actual dimensions and also for reduced thickness of the cladding; with a given external pressure and, with a known temperature spatial distribution. The latter has been calculated by solving the heat conduction equation along the fuel element for a certain power level in the reactor. The calculations are made with two FORTRAN IV computer codes developed at C.A.B., using the finite-element method: the NOLICUARM, to solve the nonlinear quasi-harmonic equation, and the ELASTEF 3, for the solution of thermoelastic problems with plane symmetry. (author) [es

  13. Response of Runoff and Sediment on Skid Trails of Varying Gradient and Traffic Intensity over a Two-Year Period

    Directory of Open Access Journals (Sweden)

    Meghdad Jourgholami

    2017-12-01

    Full Text Available Compacted soil has lower water infiltration and hydraulic conductivity, which contributes to increased runoff and erosion on slopes. The aim of the present study was to assess runoff and sediment on three skidding trail longitudinal gradients (15%, 25%, and 35% and different levels of machine traffic (low, medium, and high, over a two-year period following the impact in the Hyrcanian forest, Iran. The results show that trail gradient and traffic intensity have a significant effect on soil bulk density and total porosity on the skid trails. The average runoff amount varied significantly among trail gradients and ranged from 1.59 mm on the 15% trail gradient and 2.76 mm on the 25% trail gradient, to 4.76 mm on the 35% trail gradient in the low traffic intensity. Average sediment also increased significantly with increasing trail gradient. Average sediment was 0.01 kg m−2, 0.03 kg m−2, and 0.05 kg m−2 on the low traffic intensity in the first year for the 15%, 25%, and 35% trail gradients, respectively. The largest runoff and sediment occurred in the first year and stressed the need for applying forestry Best Management Practices such as the use of brush mats during harvesting operations, as well as the installation of water diversion structures or seeding immediately after initial soil compaction and disturbance, in order to protect the bare soil from heavy rainfall.

  14. Thermodynamic Analysis on of Skid-Mounted Coal-bed Methane Liquefaction Device using Cryogenic Turbo-Expander

    Science.gov (United States)

    Chen, Shuangtao; Niu, Lu; Zeng, Qiang; Li, Xiaojiang; Lou, Fang; Chen, Liang; Hou, Yu

    2017-12-01

    Coal-bed methane (CBM) reserves are rich in Sinkiang of China, and liquefaction is a critical step for the CBM exploration and utilization. Different from other CBM gas fields in China, CBM distribution in Sinkiang is widespread but scattered, and the pressure, flow-rate and nitrogen content of CBM feed vary significantly. The skid-mounted liquefaction device is suggested as an efficient and economical way to recover methane. Turbo-expander is one of the most important parts which generates the cooling capacity for the cryogenic liquefaction system. Using turbo-expander, more cooling capacity and higher liquefied fraction can be achieved. In this study, skid-mounted CBM liquefaction processes based on Claude cycle are established. Cryogenic turbo-expander with high expansion ratio is employed to improve the efficiency of CBM liquefaction process. The unit power consumption per liquefaction mole flow-rate for CBM feed gas is used as the object function for process optimization, compressor discharge pressure, flow ratio of feed gas to turbo-expander and nitrogen friction are analyzed, and optimum operation range of the liquefaction processes are obtained.

  15. Long-term stand growth after helicopter and ground-based skidding in a tupelo-cypress wetland: 21-year results

    Science.gov (United States)

    D.E. Evans; W.M. Aust; J.A. Peterson

    2013-01-01

    Three disturbance treatments were implemented on a tupelo-cypress forested wetland in southwestern Alabama on the Tensaw River in 1986: (1) clearcutting with helicopter log removal (HELI), (2) HELI followed by rubber-tired skidder traffic simulation (SKID), and (3) HELI followed by removal of all vegetation during the first two growing seasons via glyphosate herbicide...

  16. Soil disturbance and 10-year growth response of coast Douglas-fir on nontilled and tilled skid trails in the Oregon Cascades.

    Science.gov (United States)

    Ronald Heninger; William Scott; Alex Dobkowski; Richard Miller; Harry Anderson; Steve Duke

    2002-01-01

    We (i) quantified effects of skidder yarding on soil properties and seedling growth in a portion of western Oregon, (ii) determined if tilling skid trails improved tree growth, and (iii) compared results with those from an earlier investigation in coastal Washington. Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings were hand planted at...

  17. Evolution of tyre/road noise research in India: Investigations using statistical pass-by method and noise trailer

    Directory of Open Access Journals (Sweden)

    Vivek Khan

    2018-05-01

    Full Text Available The objective of this research study was to investigate and analyze the acoustical characteristics of asphalt concrete and cement concrete surface types by two noise measurement techniques: statistical pass-by (SPB and Close Proximity (CPX methods. A noise trailer was devised and manufactured as part of the CPX methodology to evaluate tyre/pavement noise interaction at source. Two national highway test sections covering over 11 km of asphalt and cement concrete surfaces were selected to carry out the noise measurements, and the effects of vehicle speeds and/or sizes on the overall noise profiles were investigated. The major contribution of this first of its kind study in India was the utilization of sophisticated tools and techniques to measure the tyre/pavement interaction noise at source through CPX, which helped correlate the influence of road surfaces on the generation of overall road traffic noise using SPB technique. The SPB method noise profiles revealed that the noise pressure levels increased with increasing vehicle speeds and weights. The noise trailer CPX findings corroborated the results obtained from the SPB method in that cement concrete surface produced a higher noise at source than that of the asphalt concrete surface by about 5 dBA. Further, there was about 5 dBA differential in noise between SPB and CPX methods for cement concrete pavement sections; also, there was about 10 dBA differential in noise between the two methods for asphalt concrete pavement stretches. Keywords: Tyre/road noise, Statistical pass-by, Close proximity, Noise trailer, Asphalt concrete, Cement concrete

  18. Welfare of Pigs Being Transported over Long Distances Using a Pot-Belly Trailer during Winter and Summer

    Directory of Open Access Journals (Sweden)

    Jorge A. Correa

    2014-04-01

    Full Text Available A total of 2,145 pigs were transported for 8 h in summer (six trips and winter (five trips using a pot-belly trailer accommodating pigs in four locations (upper deck or UD, bottom-nose or BN, middle deck or MD and bottom deck or BD. Heart rate of pigs during loading and transportation and lactate and creatine kinase (CK concentrations in exsanguination blood were measured. Meat quality was evaluated in the Longissimus thoracis (LT, Semimembranosus (SM and Adductor (AD muscles. During summer, pigs loaded in the UD and MD had higher (P < 0.05 heart rate at loading compared to those located in the BD and BN. Blood lactate and CK concentrations were higher (P < 0.001 in winter than in summer. Lactate concentration was higher (P = 0.01 in the blood of pigs transported in the BN. Pigs transported in the BN had higher pHu values in the LT, SM and AD muscles (P = 0.02, P < 0.001 and P = 0.002, respectively and lower (P = 0.002 drip loss values in the SM muscle. This study confirms that some locations within the PB trailer have a negative impact on the welfare of pigs at loading and during transport with more pronounced effects in the winter due to the additive effect of cold stress.

  19. The design, fabrication and maintenance of semi-trailers employed in the highway transport of weight-concentrated radioactive loads

    Energy Technology Data Exchange (ETDEWEB)

    Huffman, D.S. [Allied-Signal Inc., Metropolis, IL (United States)

    1991-12-31

    Transportation of weight-concentrated radioactive loads by truck is an essential part of a safe and economical nuclear industry. This proposed standard presents guidance and performance criteria for the safe transport of these weight-concentrated radioactive loads. ANSI N14.30 will detail specific requirements for the design, fabrication, testing, in-service inspections, maintenance and certification of the semi-trailers to be employed in said service. Furthermore, guidelines for a quality assurance program are also enumerated. This standard would apply to any semi-trailer that may or may not be specifically designed to carry weight-concentrated loads. Equipment not suitable per the criteria established in the standard would be removed from service. The nature of the nuclear industry and the need for a positive public perception of the various processes and players, mandates that the highway transportation of weight-concentrated radioactive loads be standardized and made inherently safe. This proposed standard takes a giant step in that direction.

  20. Fuel Economy and Emissions Effects of Low Tire Pressure, Open Windows, Roof Top and Hitch-Mounted Cargo, and Trailer

    Energy Technology Data Exchange (ETDEWEB)

    Thomas, John F [ORNL; Huff, Shean P [ORNL; West, Brian H [ORNL

    2014-01-01

    To quantify the fuel economy (FE) effect of some common vehicle accessories or alterations, a compact passenger sedan and a sport utility vehicle (SUV) were subjected to SAE J2263 coastdown procedures. Coastdowns were conducted with low tire pressure, all windows open, with a roof top or hitch-mounted cargo carrier, and with the SUV pulling an enclosed cargo trailer. From these coastdowns, vehicle dynamometer coefficients were developed which enabled the execution of vehicle dynamometer experiments to determine the effect of these changes on vehicle FE and emissions over standard drive cycles and at steady highway speeds. The FE penalty associated with the rooftop cargo box mounted on the compact sedan was as high as 25-27% at higher speeds, where the aerodynamic drag is most pronounced. For both vehicles, use of a hitch mounted cargo tray carrying a similar load resulted in very small FE penalties, unlike the rooftop cargo box. The results for the SUV pulling a 3500 pound enclosed cargo trailer were rather dramatic, resulting in FE penalties ranging from 30%, for the city cycle, to 50% at 80 mph, at which point significant CO generation indicated protective enrichment due to high load. Low tire pressure cases resulted in negligible to 10% FE penalty depending on the specific case and test point. Driving with all four windows open decreased FE by 4-8.5% for the compact sedan, and 1-4% for the SUV.

  1. A small stem-loop structure of the Ebola virus trailer is essential for replication and interacts with heat-shock protein A8.

    Science.gov (United States)

    Sztuba-Solinska, Joanna; Diaz, Larissa; Kumar, Mia R; Kolb, Gaëlle; Wiley, Michael R; Jozwick, Lucas; Kuhn, Jens H; Palacios, Gustavo; Radoshitzky, Sheli R; J Le Grice, Stuart F; Johnson, Reed F

    2016-11-16

    Ebola virus (EBOV) is a single-stranded negative-sense RNA virus belonging to the Filoviridae family. The leader and trailer non-coding regions of the EBOV genome likely regulate its transcription, replication, and progeny genome packaging. We investigated the cis-acting RNA signals involved in RNA-RNA and RNA-protein interactions that regulate replication of eGFP-encoding EBOV minigenomic RNA and identified heat shock cognate protein family A (HSC70) member 8 (HSPA8) as an EBOV trailer-interacting host protein. Mutational analysis of the trailer HSPA8 binding motif revealed that this interaction is essential for EBOV minigenome replication. Selective 2'-hydroxyl acylation analyzed by primer extension analysis of the secondary structure of the EBOV minigenomic RNA indicates formation of a small stem-loop composed of the HSPA8 motif, a 3' stem-loop (nucleotides 1868-1890) that is similar to a previously identified structure in the replicative intermediate (RI) RNA and a panhandle domain involving a trailer-to-leader interaction. Results of minigenome assays and an EBOV reverse genetic system rescue support a role for both the panhandle domain and HSPA8 motif 1 in virus replication. Published by Oxford University Press on behalf of Nucleic Acids Research 2016. This work is written by (a) US Government employee(s) and is in the public domain in the US.

  2. TRAILER project (Tagging, recognition, acknowledgment of informal learning experiences). A Methodology to make learners’ informal learning activities visible to the institutions

    NARCIS (Netherlands)

    García-Peñalvo, Francisco J.; Conde, Miguel Á.; Zangrando, Valentina; García-Holgado, Alicia; Seoane, Antón M.; Alier, Marc; Galanis, Nikolas; Brouns, Francis; Vogten, Hubert; Griffiths, Dai; Mykowska, Aleksandra; Alves, Gustavo R.; Minović, Miroslav

    2013-01-01

    García-Peñalvo, F. J., Conde, M. Á, Zangrando, V., García-Holgado, A., Seoane, A. M., Alier, M., Galanis, N., Brouns, F., Vogten, H., Griffiths, D., Mykowska, A., Ribeiro-Alves, G., & Minović, M. (2013). TRAILER project (Tagging, recognition, acknowledgment of informal learning experiences). A

  3. Reduction of heat losses on the skid pipe system of reheating furnaces in the steel industry; Verringerung der Waermeverluste am Tragrohrsystem von Waermeoefen in der Stahlindustrie

    Energy Technology Data Exchange (ETDEWEB)

    Springer, Michael; Huegel, Frank [FBB Engineering GmbH, Moenchengladbach (Germany)

    2011-06-15

    New technology can improve the energy efficiency of thermo processing equipment, innovative technology can ultimately help to reduce CO{sub 2} emissions from existing facilities and simultaneously ensure that the equipment can also operate more economically. The result of consequent development at FBB ENGINEERING GmbH for insulation of skid pipe systems of reheating furnaces in steel industry (walking beam -, pusher type furnace) are efficient pre-fabricated shells made of ultra-light weight castable FLB-11/150-I1 with thermo technical optimized sandwich design that lead to significant and sustainable reduction of heat losses and are responsible for high energy saving potential. Thermo technical CFD simulations, laboratory tests, field trials and complete installations of skid pipe systems show that compared to dense castable heat loss in the skid pipe cooling systems can be reduced up to 30 % and more with pre-fabricated shells made of ultra-light weight castable FLB-11/150-I1. (orig.)

  4. A novel conceptual design of parallel nitrogen expansion liquefaction process for small-scale LNG (liquefied natural gas) plant in skid-mount packages

    International Nuclear Information System (INIS)

    He, Tianbiao; Ju, Yonglin

    2014-01-01

    The utilization of unconventional natural gas is still a great challenge for China due to its distribution locations and small reserves. Thus, liquefying the unconventional natural gas by using small-scale LNG plant in skid-mount packages is a good choice with great economic benefits. A novel conceptual design of parallel nitrogen expansion liquefaction process for small-scale plant in skid-mount packages has been proposed. It first designs a process configuration. Then, thermodynamic analysis of the process is conducted. Next, an optimization model with genetic algorithm method is developed to optimize the process. Finally, the flexibilities of the process are tested by two different feed gases. In conclusion, the proposed parallel nitrogen expansion liquefaction process can be used in small-scale LNG plant in skid-mount packages with high exergy efficiency and great economic benefits. - Highlights: • A novel design of parallel nitrogen expansion liquefaction process is proposed. • Genetic algorithm is applied to optimize the novel process. • The unit energy consumption of optimized process is 0.5163 kWh/Nm 3 . • The exergy efficiency of the optimized case is 0.3683. • The novel process has a good flexibility for different feed gas conditions

  5. Truck Rollover Characterization for Class-8 Tractor-Trailers Utilizing Standard Dual Tires and New-Generation Single Tires

    Energy Technology Data Exchange (ETDEWEB)

    Capps, Gary [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). National Transportation Research Center; Knee, Bill [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). National Transportation Research Center; Franzese, Oscar [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). National Transportation Research Center; Pollock, Paul [Dana Corporation, Kalamazoo, MI (United States). Commercial Vehicle Systems Division; Coleman, Daniel [Dana Corporation, Kalamazoo, MI (United States). Commercial Vehicle Systems Division; Janajreh, Ibrahim [Michelin Americas Research and Development Corporation, Greenville, SC (United States); Haas, Steven [Michelin Americas Research and Development Corporation, Greenville, SC (United States); Frey, Norm [Michelin Americas Research and Development Corporation, Greenville, SC (United States); Law, Harry [Clemson Univ., SC (United States). Fluor Daniel Engineering Innovation Building; Johnson, Eric [Clemson Univ., SC (United States). Fluor Daniel Engineering Innovation Building; Lawson, Robert [Clemson Univ., SC (United States). Fluor Daniel Engineering Innovation Building; Petrolino, Joe [National Transportation Research Center, Inc., Knoxville, TN (United States); Rice, Dave [National Transportation Research Center, Inc., Knoxville, TN (United States)

    2005-07-30

    The Heavy Truck Rollover Characterization Project is a major research effort conducted by the National Transportation Research Center, Inc. (NTRCI) in partnership with Oak Ridge National Laboratory (ORNL), Dana Corporation (Dana), Michelin Americas Research and Development Corporation (Michelin) and Clemson University (Clemson), under the NTRCIs Heavy Vehicle Safety Research Center (HVSRC) for the Federal Highway Administration (FHWA). ORNL provided the day-to-day management of the project. The expertise mix of this team coupled with complementary research needs and interests, and a positive can-do attitude provided an extremely positive experimental research opportunity for all involved. Furthermore, this team supplied significant and valuable resources that provided a strong positive benchmark regarding the ability to conduct research within a public-private partnership. The work conducted by this team focused on initial efforts to generate data and information on heavy truck rollover not currently available in the industry. It reflects efforts within Phases 1 and 2 of a longer-term four-phase research program. A 1999 Peterbilt 379 class-8 tractor and 2004 Wabash dry freight van trailer were the test vehicles utilized in this effort. Both were instrumented with a number of sensors to capture the dynamics of the tractor and trailer as it engaged in various testing maneuvers that included: an evasive maneuver, swept sine, constant radius, and a run-off-the-road maneuver. The run-off-the-road maneuver was discontinued because the test track could not safety accommodate such a maneuver. These maneuvers were carried out utilizing both standard dual tires and new-generation dual tires in six test series. Two test series also included the use of a wider-slider suspension. Outriggers were placed on the test vehicle to assure that an actual rollover would not occur, however, the tests were designed to generate lift-off of tires during the tests. One of the main objectives

  6. Radioisotope thermoelectric generator load and unload sequence from the licensed hardware package system and the trailer system

    International Nuclear Information System (INIS)

    Reilly, M.A.

    1995-01-01

    The Radioisotope Thermoelectric Generator Transportation System, designated as System 100, comprises four major systems. The four major systems are designated as the Packaging System (System 120), Trailer System (System 140), Operations and Ancillary Equipment System (System 160), including the Radioisotope Thermoelectric Generator Transportation System packaging is licensed (regularoty) hardware, certified by the U.S. Department of Energy to be in accordance with Title 10, Code of Federal Regulations, Part 71 (10 CFR 71). System 140, System 160, and System 180 are nonlicensed (nonregulatory) hardware. This paper focuses on the required interfaces and sequencing of events required by these systems and the shipping and receiving facilities in preparation of the Radioisotope Thermoelectric Generator for space flight. copyright 1995 American Institute of Physics

  7. Experience with ANSI N14.30 for in-service inspections of semi-trailer used for spent fuel shipments

    International Nuclear Information System (INIS)

    Hirtz, G.J.

    1998-05-01

    On July 18, 1996, the Oak Ridge National Laboratory (ORNL) resumed shipping spent fuel in interstate commerce after a 10 year suspension of this activity. This shipment was conducted using a Nuclear Regulatory Commission licensed spent fuel transport package purchased from General Electric Company by ORNL for the purpose of moving High Flux Isotope Reactor spent fuel to the Savannah River Site. The trailer, fabricated to the ANSI N14.30, Semi-Trailers Employed in the Highway Transport of Weight Concentrated Radioactive Loads Design, Fabrication, and Maintenance, has recently undergone its first scheduled in-service inspection. This paper presents the experience gained from interpretation and application of the ANSI N14.30 standard focusing on the in-service inspection for the structure of the trailer. Initially, the term weight concentrated is illustrated giving detail to the location and center of gravity of the 33,500 pound shipping container and forces induced by the tie down system. Basic information about the design stresses and initial testing provided by the manufacturer are used as a lead-in to the requirements of the standard. The task of examining the trailer structure provided many lessons and required considerable effort. All of the support personnel were provided by ORNL; the garage mechanics and the certified inspection engineers had never been involved in applying ANSI N14.30. Other obstacles were the lack of existing inspection procedures for this particular activity and the lack of a previous experience interpreting the standard with regard to repair work. Some of these questions were resolved by clarification received from the writers of the standard, and others were resolved by the teamwork between the manufacturer and ORNL. This experience illustrated the importance of the trailer manufacturer as a participant in the decisions made concerning in-service inspection and maintenance

  8. Beoordeling van de FSC 2000 als vervanger van de Leroux-meter voor het bepalen van de stroefheid van betonnen stalvloeren = Evaluation of the FSC 2000 as substitute for the Leroux apparatus for determination of skid resistance of concrete floors of animal houses

    NARCIS (Netherlands)

    Winkel, A.; Blanken, K.; Bokma, S.

    2010-01-01

    In this study the FSC 2000 is evaluated as a substitute for the Leroux apparatus for determination of skid resistance of concrete floors of animal houses. This study shows that the FSC 2000 is well suitable for measurements of skid resistance of concrete slats and solid floors of animal houses.

  9. Use of Liquefied Biomethane (LBM) as a Vehicle Fuel for Road Freight Transportation : A Case Study Evaluating Environmental Performance of Using LBM for Operation of Tractor Trailers

    OpenAIRE

    Shanmugam, Kavitha; Tysklind, Mats; Upadhyayula, Venkata K.K.

    2018-01-01

    The environmental performance of Liquefied Biomethane (LBM) and Diesel operated Tractor Trailer (TT) is compared using the Life Cycle Assessment (LCA) study. In this study we consider, raw biogas produced from an anaerobic digestion process of a Wastewater Treatment Plant (WWTP) in Umea, Sweden, which is then upgraded and liquefied to LBM and used as a fuel for TTs. Currently, the WWTP in Umea is utilizing biogas, produced onsite for cogeneration of heat and electricity, thereby meeting its e...

  10. Non-Model-Based Control of a Wheeled Vehicle Pulling Two Trailers to Provide Early Powered Mobility and Driving Experiences.

    Science.gov (United States)

    Sanders Td Vr, David A

    2018-01-01

    Non-model-based control of a wheeled vehicle pulling two trailers is proposed. It is a fun train for disabled children consisting of a locomotive and two carriages. The fun train has afforded opportunities for both disabled and able bodied young people to share an activity and has provided early driving experiences for disabled children; it has introduced them to assistive and powered mobility. The train is a nonlinear system and subject to nonholonomic kinematic constraints, so that position and state depend on the path taken to get there. The train is described, and then, a robust control algorithm using proportional-derivative filtered errors is proposed to control the locomotive. The controller was not dependent on an accurate model of the train, because the mass of the vehicle and two carriages changed depending on the number, size, and shape of children and wheelchair seats on the train. The controller was robust and stable in uncertainty. Results are presented to show the effectiveness of the approach, and the suggested control algorithm is shown to be acceptable without knowing the exact plant dynamics.

  11. Fuzzy Vector Field Orientation Feedback Control-Based Slip Compensation for Trajectory Tracking Control of a Four Track Wheel Skid-steered Mobile Robot

    Directory of Open Access Journals (Sweden)

    Xuan Vinh Ha

    2013-04-01

    Full Text Available Skid-steered mobile robots have been widely used in exploring unknown environments and in military applications. In this paper, the tuning fuzzy Vector Field Orientation (FVFO feedback control method is proposed for a four track wheel skid-steered mobile robot (4-TW SSMR using flexible fuzzy logic control (FLC. The extended Kalman filter is utilized to estimate the positions, velocities and orientation angles, which are used for feedback control signals in the FVFO method, based on the AHRS kinematic motion model and velocity constraints. In addition, in light of the wheel slip and the braking ability of the robot, we propose a new method for estimating online wheel slip parameters based on a discrete Kalman filter to compensate for the velocity constraints. As demonstrated by our experimental results, the advantages of the combination of the proposed FVFO and wheel slip estimation methods overcome the limitations of the others in the trajectory tracking control problem for a 4-TW SSMR.

  12. Area 2 Photo Skid Wastewater Pit corrective action decision document Corrective Action Unit Number 332: Part 1, and Closure report: Part 2

    International Nuclear Information System (INIS)

    1997-01-01

    The Area 2 Photo Skid Wastewater Pit, Corrective Action Site (CAS) Number 02-42-03, the only CAS in Corrective Action Unit (CAU) Number 332, has been identified as a source of unquantified, uncontrolled, and unpermitted wastewater discharge. The Photo Skid was used for photographic processing of film for projects related to weapons testing, using Kodak RA4 and GPX film processing facilities for black and white and color photographs. The CAU is located in Area 2 of the Nevada Test Site, Nye County, Nevada. The CAS consists of one unlined pit which received discharged photographic process wastewater from 1984 to 1991. The Corrective Action Decision Document (CADD) and the Closure Report (CR) have been developed to meet the requirements of the Federal Facility Agreement and Consent Order (FFACO, 1996). The CADD and the CR for this CAS have been combined because sample data collected during the site investigation do not exceed regulatory limits established during the Data Quality Objectives (DQO) process. The purpose of the CADD and the CR is to justify why no corrective action is necessary at the CAU based on process knowledge and the results of the corrective action investigation and to request closure of the CAU. This document contains Part 1 of the CADD and Part 2 of the CR

  13. Evaluation of filler effects on SBR in large shearing deformations 1. Utility of differential dynamic modulus as predictor for wet skid resistance

    International Nuclear Information System (INIS)

    Isono, Y.; Oyama, T.; Kawahara, S.

    2003-01-01

    Now the use of silica in tire tread applications is increasing. This is because of not so different rolling resistance for silica (Si) filled and carbon black (CB) filled rubbers, and of higher wet skid resistance for the former than the latter. Such difference should be attributed to the variation in viscoelasticity. It is, however, still unknown what viscoelastic function should be used as a predictor. At the place in contact with the road, a tire tread rubber undergoes a large deformation on which small oscillations are superposed. Hence differential dynamic modulus measured by intermittently superposing small oscillations on a large deformation may provide useful information. In this work, nonlinear viscoelastic properties of CB and Si (with coupling agent) filled SBR vulcanizates were studied in cycles of large shearing deformation (γ = 2) and recovery (γ = 0) on which small shear oscillations (γ osc = 0.005) were superposed. CB filled SBR showed different responses in deformed and recovered states: Values of tanδ are lower in deformed state than in recovered state. However, Si filled one showed no change in tanδ in the two states. In the deformed state, Si system showed higher tanδ than CB system. The results agree with our experience of higher wet skid resistance for Si than for CB, showing validity of differential loss tangent as the predictor. Copyright (2003) AD-TECH - International Foundation for the Advancement of Technology Ltd

  14. A Small Stem Loop Structure Of The Ebola Virus Trailer Is Essential For Replication And Interacts With Heat Shock Protein A8

    Science.gov (United States)

    2016-12-02

    Nucleic Acids Research , 2016 1–15 doi: 10.1093/nar/gkw825 A small stem -loop structure of the Ebola virus trailer is essential for replication and...is a single- stranded RNA that is linked to a stem -loop, as found in the region of the replication promoter element of the EBOV genomic leader (18...Kuhn4, Gustavo Palacios3, Sheli R. Radoshitzky3, Stuart F. J. Le Grice1,* and Reed F. Johnson2,* 1RT Biochemistry Section, Basic Research Laboratory

  15. Report of the investigation of the accident at the MIDAS MYTH/MILAGRO Trailer Park on Rainier Mesa at Nevada Test Site on February 15, 1984

    International Nuclear Information System (INIS)

    1984-01-01

    Fourteen persons were injured, one fatally, when the ground upon which they were working collapsed, forming a subsidence crater in the recording trailer park of the MIDAS MYTH/MILAGRO nuclear weapons effects test on Rainier Mesa at the US Department of Energy's Nevada Test Site on February 15, 1984. Those persons injured were contractor and laboratory employees from Reynolds Electrical and Engineering Co., Inc. (REECo), Pan American World Services, Inc. (PANAM), and the Los Alamos National Laboratory (LANL). This report presents the results of an investigation into the causes, effects, and response to the accident. 42 figures

  16. Reduction of heat losses on the skid pipe system of a pusher type furnace; Verringerung der Waermeverluste am Tragrohrsystem eines Stossofens

    Energy Technology Data Exchange (ETDEWEB)

    Hoffelner, Mario; Winter, Franz [voestalpine Grobblech GmbH, Linz (Austria); Springer, Michael; Huegel, Frank [FBB Engineering GmbH, Moenchengladbach (Germany); Buhr, Andreas [Almatis GmbH, Frankfurt (Germany); Kockegey-Lorenz, Rainer [Almatis GmbH, Ludwigshafen (Germany)

    2013-06-15

    This paper discusses how energy consumption and energy loss can be reduced in reheating furnaces of hot rolling mills by new lightweight refractory materials and a new modular lining concept for the skid pipe insulation using pre-fabricated shells. The target is to optimise the hot rolling process from an energy point of view, and to reduce the operational cost of the furnaces. The new lightweight pre-fabricated shells based on the microporous castable and a thermotechnical optimised sandwich design can significantly reduce the heat losses compared to dense castable. Industrial application of the new system in a 110 t/h pusher type furnace at voestalpine Grobblech GmbH in Linz, Austria, resulted in reduction of heat loss about 30 %. The annualised energy saving gives a cost reduction of more than Euro 200,000 a year. Costs for the complete new lining about Euro 170,000 result in a payback period of less than one year. (orig.)

  17. Season, Transport Duration and Trailer Compartment Effects on Blood Stress Indicators in Pigs: Relationship to Environmental, Behavioral and Other Physiological Factors, and Pork Quality Traits

    Directory of Open Access Journals (Sweden)

    Roberta Sommavilla

    2017-02-01

    Full Text Available The objective of this study was to assess the effects of the season, travel duration and trailer compartment location on blood creatine-kinase (CK, lactate and cortisol concentrations in 384 pigs and assess their relationships with trailer temperature, heart rate and gastrointestinal tract temperature (GTT, behavior, carcass damage scores and meat quality. Blood CK was greater in pigs transported in summer (p = 0.02, after 18 h transportation (p < 0.001 and in pigs located in C4, C5 and C10 (p = 0.002. In winter, the concentration of blood lactate was higher (p = 0.04 in pigs transported for 6 h in C5. Pigs located in C10 showed higher (p = 0.01 concentration of cortisol than those transported for 18h in C4 in summer. The highest correlations were between blood cortisol and GTT (r = 0.53; p < 0.001, and between blood CK and GTT (r = 0.41; p < 0.001, truck temperature (r = 0.42; p < 0.001, and pHu in the longissimus muscle (r = 0.41; p < 0.001. In conclusion, although increased blood cortisol and CK levels appear to indicate a physical stress condition in transported pigs, the weak to moderate correlations with environmental and other animal welfare indicators suggest that blood stress parameters can only be used as a complementary measurement in the assessment of the pigs’ response to transport stress.

  18. Estimating survival rates of quagga mussel (Dreissena rostriformis bugensis veliger larvae under summer and autumn temperature regimes in residual water of trailered watercraft at Lake Mead, USA

    Directory of Open Access Journals (Sweden)

    Wook Jin Choi

    2013-01-01

    Full Text Available On 6 January 2007, invasive quagga mussels [Dreissena rostriformis bugensis (Andrusov, 1897] were discovered in the Boulder Basin ofLake Mead, Nevada, a popular site for recreational boating in the southwestern United States. Recreational watercraft are considered aprimary vector for overland dispersal of quagga mussel veliger larvae between water bodies. Thus, effective decontamination of veligers inresidual water carried by trailered recreation boats is critical to controlling this species’ spread. The survival rate of quagga mussel veligerswas measured during exposure to environmental temperature conditions mimicking those experienced in the residual water of traileredvessels during warm summer and cooler autumn months in the semi-arid southwestern United States. Under warm summer conditions,quagga mussel veligers survived approximately five days while under cooler autumn conditions they survived 27 days. When tested underautumn temperature conditions veliger survival times increased with increased level of larval development. The results suggested a greaterlikelihood of veliger transport in the residual water of trailered watercraft during autumn months. The results indicated that presentlyrecommended vessel quarantine times to kill all externally attached juvenile and adult dreissenid mussels prior to launching in an uninfested water body should be increased to generate 100% veliger mortality in residual water unable to be fully drained from the internal areas of watercraft.

  19. MELTER: A model of the thermal response of cargos transported in the Safe-Secure Trailer subject to fire environments for risk assessment applications

    International Nuclear Information System (INIS)

    Larsen, M.E.

    1994-08-01

    MELTER is an analysis of cargo responses inside a fire-threatened Safe-Secure Trailer (SST) developed for the Defense Program Transportation Risk Assessment (DPTRA). Many simplifying assumptions are required to make the subject problem tractable. MELTER incorporates modeling which balances the competing requirements of execution speed, generality, completeness of essential physics, and robustness. Input parameters affecting the analysis include those defining the fire scenario, those defining the cargo loaded in the SST, and those defining properties of the SST. For a specified fire, SST, and cargo geometry MELTER predicts the critical fire duration that will lead to a failure. The principal features of the analysis include: (a) Geometric considerations to interpret fire-scenario descriptors in terms of a thermal radiation boundary condition, (b) a simple model of the SST's wall combining the diffusion model for radiation through optically-thick media with an endothermic reaction front to describe the charring of dimensional, rigid foam in the SST wall, (c) a transient radiation enclosure model, (d) a one-dimensional, spherical idealization of the shipped cargos providing modularity so that cargos of interest can be inserted into the model, and (e) associated numerical methods to integrate coupled, differential equations and find roots

  20. Translational repression of the Drosophila nanos mRNA involves the RNA helicase Belle and RNA coating by Me31B and Trailer hitch.

    Science.gov (United States)

    Götze, Michael; Dufourt, Jérémy; Ihling, Christian; Rammelt, Christiane; Pierson, Stephanie; Sambrani, Nagraj; Temme, Claudia; Sinz, Andrea; Simonelig, Martine; Wahle, Elmar

    2017-10-01

    Translational repression of maternal mRNAs is an essential regulatory mechanism during early embryonic development. Repression of the Drosophila nanos mRNA, required for the formation of the anterior-posterior body axis, depends on the protein Smaug binding to two Smaug recognition elements (SREs) in the nanos 3' UTR. In a comprehensive mass spectrometric analysis of the SRE-dependent repressor complex, we identified Smaug, Cup, Me31B, Trailer hitch, eIF4E, and PABPC, in agreement with earlier data. As a novel component, the RNA-dependent ATPase Belle (DDX3) was found, and its involvement in deadenylation and repression of nanos was confirmed in vivo. Smaug, Cup, and Belle bound stoichiometrically to the SREs, independently of RNA length. Binding of Me31B and Tral was also SRE-dependent, but their amounts were proportional to the length of the RNA and equimolar to each other. We suggest that "coating" of the RNA by a Me31B•Tral complex may be at the core of repression. © 2017 Götze et al.; Published by Cold Spring Harbor Laboratory Press for the RNA Society.

  1. Dynamic analysis of an SDOF helicopter model featuring skid landing gear and an MR damper by considering the rotor lift factor and a Bingham number

    Science.gov (United States)

    Saleh, Muftah; Sedaghati, Ramin; Bhat, Rama

    2018-06-01

    The present study addresses the performance of a skid landing gear (SLG) system of a rotorcraft impacting the ground at a vertical sink rate of up to 4.5 ms‑1. The impact attitude is assumed to be level as per chapter 527 of the Airworthiness Manual of Transport Canada Civil Aviation and part 27 of the Federal Aviation Regulations of the US Federal Aviation Administration. A single degree of freedom helicopter model is investigated under different values of rotor lift factor, L. In this study, three SLG versions are evaluated: (a) standalone conventional SLG; (b) SLG equipped with a passive viscous damper; and (c) SLG incorporated a magnetorheological energy absorber (MREA). The non-dimensional solutions of the helicopter models show that the two former SLG systems suffer adaptability issues with variations in the impact velocity and the rotor lift factor. Therefore, the alternative successful choice is to employ the MREA. Two different optimum Bingham numbers for compression and rebound strokes are defined. A new chart, called the optimum Bingham number versus rotor lift factor ‘B{i}o-L’, is introduced in this study to correlate the optimum Bingham numbers to the variation in the rotor lift factor and to provide more accessibility from the perspective of control design. The chart shows that the optimum Bingham number for the compression stroke is inversely linearly proportional to the increase in the rotor lift factor. This alleviates the impact force on the system and reduces the amount of magnetorheological yield force that would be generated. On the contrary, the optimum Bingham number for the rebound stroke is found to be directly linearly proportional to the rotor lift factor. This ensures controllable attenuation of the restoring force of the linear spring element. This idea can be exploited to generate charts for different landing attitudes and sink rates. In this article, the response of the helicopter equipped with the conventional undamped, damped

  2. Desarrollo conceptual de un sistema integrado para el control de calidad en mediciones de resistencia al deslizamiento Conceptual development of an integrated system for quality control of skid resistance measurements

    Directory of Open Access Journals (Sweden)

    Hernán de Solminihac

    2012-01-01

    Full Text Available La seguridad es uno de los aspectos principales a considerar cuando se evalúa la calidad de servicio provista por un camino. Por lo tanto, la determinación precisa de la fricción superficial del pavimento adquiere suma importancia como parte de un plan de gestión de redes viales. Actualmente se emplean diversos equipos y procedimientos para medir la resistencia al deslizamiento en superficies de pavimento, tales como el Péndulo Británico, GripTester y SCRIM, entre otros. Con estos equipos se recopila información en terreno que se compara posteriormente respecto a valores umbrales que se consideran aceptables. Con el fin de asegurar una confiabilidad y nivel de calidad aceptables para esos resultados, se debe realizar un monitoreo constante a los procedimientos de medición, así como revisiones y calibración de los instrumentos. Este artículo propone una metodología general para el control de calidad en instrumentos y mediciones de resistencia al deslizamiento. Tal metodología ha sido diseñada usando listas de verificación y aplicando conceptos estadísticos de repetibilidad y reproducibilidad. La metodología fue aplicada para evaluar el nivel de calidad alcanzado por instrumentos y procedimientos de medición de resistencia al deslizamiento empleados en Chile, con buenos resultados. La calidad de los procedimientos de evaluación incluidos en dicha metodología también fue verificada, usando las técnicas de análisis estadísticos Seis-Sigma, lo que contribuyó significativamente a mejorar el sistema de control de calidad propuesto.Safety is one of the main issues that must be considered when evaluating the quality of service provided by a road. Therefore, skid resistance measurement procedures are quite important components of a road management system. Currently, many equipments and procedures are used to measure skid resistance in pavement surfaces, like British Pendulum, GripTester, SCRIM, among others. Skid resistance data

  3. Stabilization of backing-up operations of truck trailers and road trains by a control element; Stabilisierung der Rueckwaertsfahrt von LKW-Aufliegern und Gliederzuegen durch einen Regler

    Energy Technology Data Exchange (ETDEWEB)

    Schumacher, W. [Technische Univ. Braunschweig (Germany)

    2001-07-01

    Although modern trucks have many electronic systems, an integrated electronic steering system is still lacking. A demonstration model of an integrated, fully electronic powertrain - the X-by-wire system - was presented by DaimlerChrysler AG at the IAA Nutzfahrzeuge in September 2000. Among other functions, the system will facilitate backing-up of trucks with trailers or road trains. [German] Zahlreiche Systeme erleichtern LKW-Fahrern die Arbeit: z.B. Bremskraftverstaerker, Lenkkraftservos und elektronisch geschaltete Getriebe. Das grundsaetzliche Konzept der Fahrzeuglenkung bleibt jedoch erhalten: Der Fahrer greift auf einzelne Aggregate zu wie beispielsweise Motor, Bremse, Getriebe und Lenkung. Eine rein elektronische Steuerung ohne mechanische Verbindung, die eine gemeinsame Schnittstelle mehrerer oder aller Aggregate bereitstellen koennte, befindet sich gerade in der Entwicklung. Ein Demonstrationsmodell eines integrierten rein elektronisch ansteuerbaren Antriebsstrangs wurde von DaimlerChrysler AG auf der IAA Nutzfahrzeuge im September 2000 vorgestellt. Die X-by-wire Technologie eroeffnet voellig neue Moeglichkeiten fuer echte Fahrerassistenzsysteme, die nicht nur Kraftverstaerker sind, sondern auch Informationsverarbeitung betreiben. Ein Beispiel fuer ein solches System ist ein Rueckwaertsrangierassistent, der dem Fahrer bei der Rueckwaertsfahrt mit Auflieger oder Gliederzug die schwierige Aufgabe abnimmt, das ungewollte Einknicken des Zuges zu verhindern. Dazu ist es notwendig, dass der Lenkwinkel der Zugmaschine von einem Regler vorgegeben wird, der neben der vom Fahrer gewuenschten Kruemmung auch die Knickwinkel des Zuges mit einrechnet. Der Fahrer greift damit nicht mehr auf den Lenkwinkel zu, sondern gibt dem Regler einen Sollwert fuer die gewuenschte stabiliserte Bahnkruemmung des Zuges vor. Jeder, der schon einmal selber mit einem Anhaenger rueckwaerts rangiert hat oder zumindest ein solches Manoever beobachtet hat, weiss unmittelbar wieviel

  4. Your Brain on the Movies: A Computational Approach for Predicting Box-office Performance from Viewer’s Brain Responses to Movie Trailers

    Science.gov (United States)

    Christoforou, Christoforos; Papadopoulos, Timothy C.; Constantinidou, Fofi; Theodorou, Maria

    2017-01-01

    The ability to anticipate the population-wide response of a target audience to a new movie or TV series, before its release, is critical to the film industry. Equally important is the ability to understand the underlying factors that drive or characterize viewer’s decision to watch a movie. Traditional approaches (which involve pilot test-screenings, questionnaires, and focus groups) have reached a plateau in their ability to predict the population-wide responses to new movies. In this study, we develop a novel computational approach for extracting neurophysiological electroencephalography (EEG) and eye-gaze based metrics to predict the population-wide behavior of movie goers. We further, explore the connection of the derived metrics to the underlying cognitive processes that might drive moviegoers’ decision to watch a movie. Towards that, we recorded neural activity—through the use of EEG—and eye-gaze activity from a group of naive individuals while watching movie trailers of pre-selected movies for which the population-wide preference is captured by the movie’s market performance (i.e., box-office ticket sales in the US). Our findings show that the neural based metrics, derived using the proposed methodology, carry predictive information about the broader audience decisions to watch a movie, above and beyond traditional methods. In particular, neural metrics are shown to predict up to 72% of the variance of the films’ performance at their premiere and up to 67% of the variance at following weekends; which corresponds to a 23-fold increase in prediction accuracy compared to current neurophysiological or traditional methods. We discuss our findings in the context of existing literature and hypothesize on the possible connection of the derived neurophysiological metrics to cognitive states of focused attention, the encoding of long-term memory, and the synchronization of different components of the brain’s rewards network. Beyond the practical

  5. Your Brain on the Movies: A Computational Approach for Predicting Box-office Performance from Viewer's Brain Responses to Movie Trailers.

    Science.gov (United States)

    Christoforou, Christoforos; Papadopoulos, Timothy C; Constantinidou, Fofi; Theodorou, Maria

    2017-01-01

    The ability to anticipate the population-wide response of a target audience to a new movie or TV series, before its release, is critical to the film industry. Equally important is the ability to understand the underlying factors that drive or characterize viewer's decision to watch a movie. Traditional approaches (which involve pilot test-screenings, questionnaires, and focus groups) have reached a plateau in their ability to predict the population-wide responses to new movies. In this study, we develop a novel computational approach for extracting neurophysiological electroencephalography (EEG) and eye-gaze based metrics to predict the population-wide behavior of movie goers. We further, explore the connection of the derived metrics to the underlying cognitive processes that might drive moviegoers' decision to watch a movie. Towards that, we recorded neural activity-through the use of EEG-and eye-gaze activity from a group of naive individuals while watching movie trailers of pre-selected movies for which the population-wide preference is captured by the movie's market performance (i.e., box-office ticket sales in the US). Our findings show that the neural based metrics, derived using the proposed methodology, carry predictive information about the broader audience decisions to watch a movie, above and beyond traditional methods. In particular, neural metrics are shown to predict up to 72% of the variance of the films' performance at their premiere and up to 67% of the variance at following weekends; which corresponds to a 23-fold increase in prediction accuracy compared to current neurophysiological or traditional methods. We discuss our findings in the context of existing literature and hypothesize on the possible connection of the derived neurophysiological metrics to cognitive states of focused attention, the encoding of long-term memory, and the synchronization of different components of the brain's rewards network. Beyond the practical implication in

  6. Your Brain on the Movies: A Computational Approach for Predicting Box-office Performance from Viewer’s Brain Responses to Movie Trailers

    Directory of Open Access Journals (Sweden)

    Christoforos Christoforou

    2017-12-01

    Full Text Available The ability to anticipate the population-wide response of a target audience to a new movie or TV series, before its release, is critical to the film industry. Equally important is the ability to understand the underlying factors that drive or characterize viewer’s decision to watch a movie. Traditional approaches (which involve pilot test-screenings, questionnaires, and focus groups have reached a plateau in their ability to predict the population-wide responses to new movies. In this study, we develop a novel computational approach for extracting neurophysiological electroencephalography (EEG and eye-gaze based metrics to predict the population-wide behavior of movie goers. We further, explore the connection of the derived metrics to the underlying cognitive processes that might drive moviegoers’ decision to watch a movie. Towards that, we recorded neural activity—through the use of EEG—and eye-gaze activity from a group of naive individuals while watching movie trailers of pre-selected movies for which the population-wide preference is captured by the movie’s market performance (i.e., box-office ticket sales in the US. Our findings show that the neural based metrics, derived using the proposed methodology, carry predictive information about the broader audience decisions to watch a movie, above and beyond traditional methods. In particular, neural metrics are shown to predict up to 72% of the variance of the films’ performance at their premiere and up to 67% of the variance at following weekends; which corresponds to a 23-fold increase in prediction accuracy compared to current neurophysiological or traditional methods. We discuss our findings in the context of existing literature and hypothesize on the possible connection of the derived neurophysiological metrics to cognitive states of focused attention, the encoding of long-term memory, and the synchronization of different components of the brain’s rewards network. Beyond the

  7. Nitrogen trailer acceptance test report

    International Nuclear Information System (INIS)

    Kostelnik, A.J.

    1996-01-01

    This Acceptance Test Report documents compliance with the requirements of specification WHC-S-0249. The equipment was tested according to WHC-SD-WM-ATP-108 Rev.0. The equipment being tested is a portable contained nitrogen supply. The test was conducted at Norco's facility

  8. Measurements on Container Load Trailer

    DEFF Research Database (Denmark)

    Brincker, Rune; Hansen, Lars Pilegaard

    This report describes a series of measurements carried out for Danish Camp Supply (DCS), Nørre Sundby, Denmark during January and February 1990. The test series was departed into three sessions: the first pilot measurement session made on Friday 26. of January, the second pilot measurement made o...

  9. Trailer-loading of horses

    DEFF Research Database (Denmark)

    Hendriksen, Payana; Elmgreen, Katrine; Ladewig, Jan

    2011-01-01

    in mean HR (bpm) between the 2 groups (NR: 53.06 ± 11.73 bpm; PR: 55.54 ± 6.7 bpm, P > 0.05), but a Wilcoxon test showed a difference in the PR group between the baseline of HR and mean HR obtained during training sessions (baseline PR: 43 ± 8.83 bpm; PR: 55.54 ± 6.7 bpm, P

  10. Cálculo de estructuras para semirremolques de pasajeros de grandes dimensiones // Calculation of structures for semi - trailers of large dimensions using in passengers transportation

    Directory of Open Access Journals (Sweden)

    L Otero Pereiro

    1998-01-01

    .____________________________________________________________________AbstractThe Finite Elements Method (FEM developed until the present time is a powerful computerized calculation system applied inthe tensions and deformations analysis of solids and structures and much literature has been published on FEM as calculationmethod,The need of solving the problems of passengers transportation, mainly in Havana City, in the difficult conditions of Cubanspecial period, conducted to the development of a semi - trailer with the necessary characteristics to fulfil this function , whichby their attributes constitutes the only one in his gender for this purpose.It is, the first time that in our country is executed the calculation of a self - potable reticulated structure of similar magnitude,with satisfactory concrete results.It is approached the creation of a physic - mathematical model that simulates the real structure, conditioned to the limitations ofthe calculation program, offering a similar behavior in the efforts and deformations that are produced, with a study of thedifferent variants of results.In the work are obtained some results on the possible consequences the calculation of the complete structure or separating it bysections, being necessary the establishment of a methodical for the definition of those sections that they can be analyzedseparately, as well as the order of importance of this analysis.It was accomplished the experimental determination of the dynamic load coefficient, as well as the establishment of the physic- mathematical model adapted for the calculation of the structure of a semi - trailer for passengers transportation applying theFinite Elements Method.It was effected a test to statics load del frame to corroborate the validity of the physic - mathematical model of the structure.Additionally, It is proposed a technical solution within the technological possibilities of the constructing company to avoid thestructure breakage of the equipment.

  11. Branch-and-Price and Heuristic Column Generation for the Generalized Truck-and-Trailer Routing Problem || Branch-and-Price y generación heurística de columnas para el problema generalizado de rutas de trenes de carretera

    Directory of Open Access Journals (Sweden)

    Drexl, Michael

    2011-01-01

    Full Text Available The generalized truck-and-trailer routing problem (GTTRP constitutes a unified model for vehicle routing problems with trailers and a fixed lorry-trailer assignment. The GTTRP is a generalization of the truck-and-trailer routing problem (TTRP, which itself is an extension of the well-known vehicle routing problem (VRP. In the GTTRP, the vehicle fleet consists of single lorries and lorry-trailer combinations. Some customers may be visited only by a single lorry or by a lorry without its trailer, some may also be visited by a lorry-trailer combination. In addition to the customer locations, there is another relevant type of location, called transshipment location, where trailers can be parked and where a load transfer from a lorry to its trailer can be performed. In this paper, two mixed-integer programming (MIP formulations for the GTTRP are presented. Moreover, an exact solution procedure for the problem, a branch-and-price algorithm, and heuristic variants of this algorithm are described. Computational experiments with the algorithms are presented and discussed. The experiments are performed on randomly generated instances structured to resemble real-world situations and on TTRP benchmark instances from the literature. The results of the experiments show that instances of realistic structure and size can be solved in short time and with high solution quality by a heuristic algorithm based on column generation. || El problema generalizado de rutas de trenes de carretera (generalized truck-and-trailer routing problem, GTTRP constituye un modelo unificado para problemas de rutas de vehículos con remolques y asignación fija camión-remolque. El GTTRP es una generalización del truck-and-trailer routing problem (TTRP, que es una extensión del conocido problema de rutas de vehículos (vehicle routing problem, VRP. En el GTTRP, la flota de vehículos consiste en camiones sin remolque (camiones solos y trenes de carretera. Algunos clientes pueden

  12. Los epitextos virtuales en la difusión del libro infantil: Hacia una poética del book-trailer. Un modelo de análisis

    Directory of Open Access Journals (Sweden)

    Rosa Tabernero-Sala

    2016-01-01

    Full Text Available En el marco de la definición del book-trai - ler como epitexto virtual en la categoría de paratexto incorporado (Gray, 2010 o de lite - ratura digital en aumento (Unsworth, 2006, en este trabajo presentamos el análisis de las principales características del book-trai - ler partiendo del estudio de un corpus de 80 ejemplos seleccionados del material que apa - rece en la red. De este análisis se desprende - rá una serie de categorías que constituirán las referencias necesarias para analizar un book-trailer desde los parámetros de calidad y de la alfabetización multimodal. Asimismo ejemplificamos el modelo de análisis con el objeto de constatar su paradigma.

  13. Preventative maintenance plan for emergency pumping trailers

    International Nuclear Information System (INIS)

    Wiggins, D.D.

    1994-09-01

    The purpose/goal of this document is to identify the maintenance requirements and resources available to properly maintain the readiness and condition of the Emergency Pumping Equipment controlled by the Tank Waste Remediation System Tank Farms Plant Engineering and Tank Stabilization Operations. This equipment is intended to pump a single-shell tank (SST) that has been identified as an assumed leaking tank. The goal is to commence pumping (submersible or jet) as soon as safely possible after identifying a SST as an assumed leaking tank. Important information pertaining to the Emergency Pumping Equipment, Over-Ground Piping installation, and procedures is found in WHC-SD-WM-AP-005, ''Single Shell Tank Leak Emergency Pumping Guide.''

  14. Enhancing informal learning recognition through TRAILER project

    NARCIS (Netherlands)

    Conde, Miguel Á.; García-Peñalvo, Francisco J.; Zangrando, Valentina; García-Holgado, Alicia; Seoane-Pardo, Antonio M.; Alier, Marc; Galanis, Nikolas; Griffiths, Dai; Johnson, Mark; Janssen, José; Brouns, Francis; Vogten, Hubert; Finders, Anton; Sloep, Peter; Marques, Maria A.; Viegas, Maria C.; Alves, Gustavo R.; Waszkiewicz, Elwira; Mykowska, Aleksandra; Minovic, Miroslav; Milovanovic, Milos

    2013-01-01

    Conde, M. A., García-Peñalvo, F. J., Zangrando, V., García-Holgado, A., Seoane-Pardo, A. M., Alier, M., Galanis, N., Griffiths, D., Johnson, M., Janssen, J., Brouns, F., Vogten, H., Finders, A., Sloep, P. B., Marques, M. A., Viegas, M. C., Alves, G. R., Waszkiewicz, E., Mykowska, A., Minovic,

  15. 46 CFR Appendix A to Part 520 - Standard Terminology and Codes

    Science.gov (United States)

    2010-10-01

    ... cargo by American-flag common carriers. P Addition of a port or point. R Reduction. S Special Case... HH Hardtop HT Insulated IN Open Top OT Dry PC Platform PL Reefer RE Tank TC Top Loader TL Trailer TR... Carton CTN Cylinder CYL Dry Bulk DBK Double-length Rack DRK Drum DRM Double-length Skid DSK Double-length...

  16. Mobile lighting apparatus

    Science.gov (United States)

    Roe, George Michael; Klebanoff, Leonard Elliott; Rea, Gerald W; Drake, Robert A; Johnson, Terry A; Wingert, Steven John; Damberger, Thomas A; Skradski, Thomas J; Radley, Christopher James; Oros, James M; Schuttinger, Paul G; Grupp, David J; Prey, Stephen Carl

    2013-05-14

    A mobile lighting apparatus includes a portable frame such as a moveable trailer or skid having a light tower thereon. The light tower is moveable from a stowed position to a deployed position. A hydrogen-powered fuel cell is located on the portable frame to provide electrical power to an array of the energy efficient lights located on the light tower.

  17. Verification and validation interim report for portable 1,000 CFM exhauster skids POR-007/Skid E and POR-008/Skid F

    International Nuclear Information System (INIS)

    Nelson, O.D.

    1998-01-01

    This Verification and Validation (V/V) interim report summarizes to date the results of the V/V tasks performed in each of the following life cycle phases: concept, requirements, design, implementation, test, installation and checkout, and operation and maintenance. At the end of the installation and checkout phase, the V/V final report will be issued. This interim report contains or references the following for each phase: Description of V/V tasks performed; Summary of task results; Summary of anomalies and resolution; Assessment of system quality; Recommendations

  18. Radioisotope thermoelectric generator transportation system safety analysis report for packaging. Volumes 1 and 2

    Energy Technology Data Exchange (ETDEWEB)

    Ferrell, P.C.

    1996-04-18

    This SARP describes the RTG Transportation System Package, a Type B(U) packaging system that is used to transport an RTG or similar payload. The payload, which is included in this SARP, is a generic, enveloping payload that specifically encompasses the General Purpose Heat Source (GPHS) RTG payload. The package consists of two independent containment systems mounted on a shock isolation transport skid and transported within an exclusive-use trailer.

  19. Radioisotope thermoelectric generator transportation system safety analysis report for packaging. Volumes 1 and 2

    International Nuclear Information System (INIS)

    Ferrell, P.C.

    1996-01-01

    This SARP describes the RTG Transportation System Package, a Type B(U) packaging system that is used to transport an RTG or similar payload. The payload, which is included in this SARP, is a generic, enveloping payload that specifically encompasses the General Purpose Heat Source (GPHS) RTG payload. The package consists of two independent containment systems mounted on a shock isolation transport skid and transported within an exclusive-use trailer

  20. Pizza Boy vs the Highway Department

    Science.gov (United States)

    Ilyes, Mark A.; Filizzi, James M.

    2005-10-01

    Many physics teachers and physics education researchers have found that students are highly motivated by classroom or laboratory experiences involving practical, "real-life" scenarios. Rather than attempting to verify a known relationship, they are asked to use an existing relationship to solve some practical problem. The purpose of this experimental investigation is to determine the speed of a car prior to applying the brakes and skidding into a flatbed tractor-trailer.

  1. Acceptance test report for portable exhauster POR-008/Skid F

    International Nuclear Information System (INIS)

    Kriskovich, J.R.

    1998-01-01

    Portable Exhauster POR-008 was procured via HNF-0490, Specification for a Portable Exhausted System for Waste Tank Ventilation. Prior to taking ownership, acceptance testing was performed at the vendors. However at the conclusion of testing a number of issues remained that required resolution before the exhausters could be used by Project W-320. The purpose of acceptance testing documented by this report was to demonstrate compliance of the exhausters with the performance criteria established within HNF-O49O, Rev. 1 following a repair and upgrade effort at Hanford. In addition, data obtained during this testing is required for the resolution of outstanding Non-conformance Reports (NCR), and finally, to demonstrate the functionality of the associated software for the pressure control and high vacuum exhauster operating modes provided for by W-320. Additional testing not required by the ATP was also performed to assist in the disposition and close out of receiving inspection report and for application design information (system curve). Results of this testing are also captured within this document

  2. The energy betrayal. The 'Energie Wende' skids off the track

    International Nuclear Information System (INIS)

    Gay, Michel

    2014-01-01

    In a first article, the author criticizes the French programming bill for a new energy model. He states that this text does not comply with initially defined objectives by emphasizing renewable energies and by ignoring or reducing the critical role of nuclear energy in this transition. In two appendices, the author adds his own comments in the programming bill text and in a text defining energy transition and identifying the main associated leverages. A second article outlines the failure of the German energy policy (Energie Wende) which resulted in very costly supports to the photovoltaic and wind energy sectors in comparison with their actual energy production, but also resulted in an increase of greenhouse gas emissions during the last three years. The author outlines how the German example should inspire the French policy, but notices that it doesn't. In appendix, the author publishes e-mails he exchanged about this issue with an elected ecologist and with a representative of the French-German Office for renewable energies

  3. Mapping Asphaltic Roads’ Skid Resistance Using Imaging Spectroscopy

    Directory of Open Access Journals (Sweden)

    Nimrod Carmon

    2018-03-01

    Full Text Available The purpose of this study is to evaluate a realistic feasibility of using hyperspectral remote sensing (also termed imaging spectroscopy airborne data for mapping asphaltic roads’ transportation safety. This is done by quantifying the road-tire friction, an attribute responsible for vehicle control and emergency stopping. We engaged in a real-life operational scenario, where the roads’ friction was modeled against the reflectance information extracted directly from the image. The asphalt pavement’s dynamic friction coefficient was measured by a standardized technique using a Dynatest 6875H (Dynatest Consulting Inc., Westland, MI, USA Friction Measuring System, which uses the common test-wheel retardation method. The hyperspectral data was acquired by the SPECIM AisaFenix 1K (Specim, Spectral Imaging Ltd., Oulu, Finland airborne system, covering the entire optical range (350–2500 nm, over a selected study site, with roads characterized by different aging conditions. The spectral radiance data was processed to provide apparent surface reflectance using ground calibration targets and the ACORN-6 atmospheric correction package. Our final dataset was comprised of 1370 clean asphalt pixels coupled with geo-rectified in situ friction measurement points. We developed a partial least squares regression model using PARACUDA-II spectral data mining engine, which uses an automated outlier detection procedure and dual validation routines—a full cross-validation and an iterative internal validation based on a Latin Hypercube sampling algorithm. Our results show prediction capabilities of R2 = 0.632 for full cross-validation and R2 = 0.702 for the best available model in internal validation, both with significant results (p < 0.0001. Using spectral assignment analysis, we located the spectral bands with the highest weight in the model and discussed their possible physical and chemical assignments. The derived model was applied back on the hyperspectral image to predict and map the friction values of every road pixel in the scene. Combining the standard method with imaging spectroscopy may provide the required expansion of the available data to furnish decision makers with a full picture of the roads’ status. This technique’s limitations originate mainly in compositional variations between different roads, and the requirement for the application of multiple calibrations between scenes. Possible improvements could be achieved by using more spectral regions (e.g., thermal and additional remote sensing techniques (e.g., LIDAR as well as new platforms (e.g., UAV.

  4. Structural analysis of a friction stir-welded small trailer

    OpenAIRE

    Fabio Bermúdez-Parra; Fernando Franco-Arenas; Fernando Casanova-García

    2015-01-01

    En este artículo se analiza una estructura de remolque construida utilizando aleación de aluminio 6063-T5 y soldadura por fricciónagitación. El material base y la junta soldada fueron caracterizados mediante pruebas de tracción. Las cargas para el análisis estructural fueron obtenidas con pruebas de campo donde se midieron esfuerzos en puntos considerados críticos, en un remolque de 2.73 m de largo por 0.95 m de ancho mientras era conducido sobre una carretera irregular. Los esfuerzos en el r...

  5. Structural analysis of a friction stir-welded small trailer

    Directory of Open Access Journals (Sweden)

    Fabio Bermúdez-Parra

    2015-01-01

    Full Text Available En este artículo se analiza una estructura de remolque construida utilizando aleación de aluminio 6063-T5 y soldadura por fricciónagitación. El material base y la junta soldada fueron caracterizados mediante pruebas de tracción. Las cargas para el análisis estructural fueron obtenidas con pruebas de campo donde se midieron esfuerzos en puntos considerados críticos, en un remolque de 2.73 m de largo por 0.95 m de ancho mientras era conducido sobre una carretera irregular. Los esfuerzos en el remolque completo se obtuvieron utilizando un modelo de elementos finitos donde la junta con máximos esfuerzos fue identificada. Esta junta fue construida con un elemento tubular utilizando soldadura por fricción - agitación y posteriormente fue evaluada con pruebas de flexión. Utilizando el factor de impacto obtenido de las pruebas de campo, se realizó un análisis a fatiga de la junta. Se encontró que la resistencia de la junta es suficiente para soportar las cargas de operación del remolque.

  6. The Book Trailer Project: Media Production within an Integrated Classroom

    Science.gov (United States)

    Festa, Karen

    2017-01-01

    A special education co-teacher in an integrated elementary classroom describes key aspects of media literacy pedagogy for all students, including opportunities for critical analysis and creative media production. After elementary school students learned about author's craft, purpose, theme/message, three types of writing, and target audience, they…

  7. Can brain responses to movie trailers predict success?

    OpenAIRE

    Boksem, Maarten

    2015-01-01

    textabstractDecades of research have shown that much of our mental processing occurs at the subconscious level, including the decisions we make as consumers. These subconscious processes explain why we so often fail to accurately predict our own future choices. Often what we think we want has little or no bearing on the choices we actually make. Now a new study provides the first evidence that brain measures can provide significant added value to models for predicting consumer choice.

  8. Can brain responses to movie trailers predict success?

    NARCIS (Netherlands)

    M.A.S. Boksem (Maarten)

    2015-01-01

    textabstractDecades of research have shown that much of our mental processing occurs at the subconscious level, including the decisions we make as consumers. These subconscious processes explain why we so often fail to accurately predict our own future choices. Often what we think we want has

  9. Visual odometry for trailer off-tracking estimation

    CSIR Research Space (South Africa)

    De Saxe, Christopher

    2016-11-01

    Full Text Available utilises high precision RTK-GPS, an articulation angle sensor and a kinematic vehicle model. Helmick et al. (2004) proposed a visual odometry-based path-following system for a Mars rover in high-slip environments. Visual odometry data was merged...- dimensional scene. Advances in visual odometry algorithms have resulted in its widespread use in the areas of autonomous road vehicles and mobile robotics. Compared to other odometry systems such as wheel speed sensors and GPS, visual odometry offers high...

  10. Analysis of smoke trailers at individual classes of atmosphere stability

    International Nuclear Information System (INIS)

    Carach, V.; Macala, J.

    2007-01-01

    At the present most endangered element of the environment is currently atmosphere and its pollution that rapidly accrue. Pollutants are emitted from air pollution sources. The output of pollutant from air pollution source is creating so-called smoke screen. Smoke screens can be observed from point sources of air pollution - smokestacks, up-cast. The purpose of this article was to build theoretical models of smoke screens rise from point source at different meteorological conditions characterized with fifth classes of atmosphere stability. (authors)

  11. Streaming video - præsentation af trailere over internettet

    DEFF Research Database (Denmark)

    Jensen, Ole Riis; Forchhammer, Søren

    1998-01-01

    interaktiv tjeneste baseret på realtidsfremvisning af videotrailere, såkaldt streaming video og audio, og hvor brugeren kan få information om en film der tænkes udbudt på en pay-per-view kanal. Der i arbejdets forløb blevet opbygget en demo, der implementerer en sådan tjeneste.......Som et led i Tele Danmark Kabel TV's markedsføring ønsker man at kunne præsentere filmtrailere og andet materiale i form af levende billeder til kunderne via Wold Wide Web (WWW). Dette projekts hovedformål er at undersøge eksisterende metoder og udvikle redskaber til at præsentere en tilsvarende...

  12. National standards and code compliance for electrical equipment and instruments installed in hazardous locations for the cone penetrometer

    International Nuclear Information System (INIS)

    Bussell, J.H.

    1996-03-01

    The cone penetrometer is designed to measure the material properties of waste tank contents at the Hanford Site. The penetrometer system consists of a skid-mounted assembly, a penetrometer assembly (composed of a guide tube and a push rod), an active neutron moisture measurement probe, decontamination unit, and a support trailer containing a diesel-engine-driven hydraulic pump and a generator. The skid-mounted assembly is about 8 feet wide by 23 feet long and 15 feet high. Its nominal weight is about 40,000 pounds with the provisions to add up to 54,500 pounds of additional ballast. This document describes the cone penetrometer electrical instruments and how it complies with national standards

  13. Residual tree damage during selection cuts using two skidding systems in the Missouri Ozarks

    Science.gov (United States)

    Robert L. Ficklin; John P. Dwyer; Bruce E. Cutter; Tom Draper

    1997-01-01

    Today, there is an interest in using alternative silvicultural systems like selection and two-aged management, because the public finds these systems more acceptable than clearcutting. However, repeated entries into forest stands to remove timber increase the risk of residual stand damage. Harvest techniques are desirable that (1) reduce the risk of stand damage and (2...

  14. 76 FR 2309 - Consumer Information Regulations; Fees for Use of Traction Skid Pads

    Science.gov (United States)

    2011-01-13

    ... require motor vehicle and tire manufacturers and tire brand owners to label such tires with information... submissions.\\4\\ \\4\\ Optical character recognition (OCR) is the process of converting an image of text, such as...

  15. ATP for the portable 500 CFM exhauster POR-004 skid B

    International Nuclear Information System (INIS)

    Keller, C.M.

    1997-01-01

    This Acceptance Test Plan is for a 500 CFM Portable Exhauster POR-004 to be used for saltwell pumping. The Portable Exhauster System will be utilized to eliminate potential flammable gases that may exist within the dome space of the tank. This Acceptance Plan will test and verify that the exhauster meets the specified design criteria, safety requirements, operations requirements, and will provide a record of the functional test results

  16. ATP for the portable 500 CFM exhauster POR-006 skid D

    International Nuclear Information System (INIS)

    Keller, C.M.

    1997-01-01

    This Acceptance Test Plan is for a 500 CFM Portable Exhauster POR-006 to be used for saltwell pumping. The Portable Exhauster System will be utilized to eliminate potential flammable gases that may exist within the dome space of the tank. This Acceptance Plan will test and verify that the exhauster meets the specified design criteria, safety requirements, operations requirements, and will provide a record of the functional test results

  17. ATP for the portable 500 CFM exhauster POR-005 skid C

    International Nuclear Information System (INIS)

    Keller, C.M.

    1997-01-01

    This Acceptance Test Plan is for a 500 CFM Portable Exhauster POR-005 to be used for saltwell pumping. The Portable Exhauster System will be utilized to eliminate potential flammable gases that may exist within the dome space of the tank. This Acceptance Plan will test and verify that the exhauster meets the specified design criteria, safety requirements, operations requirements, and will provide a record of the functional test results

  18. Operational test procedure for pumping and instrumentation control skid SALW-6001B monitor and control system

    International Nuclear Information System (INIS)

    Garcia, M.F.

    1995-11-01

    This OTP shall verify and document that the monitor and control system comprised of PICS SALW-6001B PLC, 242S PLC, Operator Control Station, and communication network is functioning per operational requirements

  19. Wheel skid correction is a prerequisite to reliably measure wheelchair sports kinematics based on inertial sensors

    NARCIS (Netherlands)

    Van der Slikke, R.M.A.; Berger, M.A.M.; Bregman, D.J.J.; Veeger, H.E.J.

    2015-01-01

    Accurate knowledge of wheelchair kinematics during a match could be a significant factor in performance improvement in wheelchair basketball. To date, most systems for measuring wheelchair kinematics are not suitable for match applications or lack detail in key kinematic outcomes. This study

  20. The Air Force Weapons Laboratory Skid Resistance Research Program, 1969- 1974

    Science.gov (United States)

    1975-05-01

    M(d) The slope measuring device consists of a rectangular section of aluminum (10-ft lonq, 5/8-in thick, and 2-1/2-in high) with machinists levels...pipe lines, meters, weight buckets, spray bars, and other containers of flow lines. i. Thermometric Equipment, An armored thermometer with a range from...shall be further equipped with an approved dial-scale mercury-actuated thermometer, an electric pyrometer, or other approved thermometric instruments

  1. Design and performance of a skid-mounted portable compartment fire gas furnace and monitoring system

    Directory of Open Access Journals (Sweden)

    Mueller K.

    2013-09-01

    Full Text Available A custom, portable natural gas fire furnace was designed and constructed for use at the University of Notre Dame to experimentally investigate the out-of-plane behavior of full-scale reinforced concrete (RC bearing walls under fire. The unique aspects of this furnace allowed the application of large mechanical loads and non-contact optical response monitoring to be done while subjecting the wall to elevated temperatures. The performance of the experimental furnace, mechanical loading, and response monitoring system is reported using the results from the first two RC wall test specimens.

  2. Hazardous waste treatment facility and skid-mounted treatment systems at Los Alamos

    International Nuclear Information System (INIS)

    Lussiez, G.W.; Zygmunt, S.J.

    1993-01-01

    To centralize treatment, storage, and staging areas for hazardous wastes, Los Alamos National Laboratory has designed a 12,000-ft 2 hazardous waste treatment facility. The facility will house a treatment room for each of four kinds of wastes: nonradioactive characteristic wastes, nonradioactive listed wastes radioactive characteristic wastes, and radioactive listed wastes. The facility will be used for repacking labpacks, bulking small organic waste volumes, processing scintillation vials, treating reactives such as lithium hydride and pyrophoric uranium, treating contaminated solids such as barium sand, and treating plating wastes. The treated wastes will then be appropriately disposed of. This report describes the integral features of the hazardous waste treatment facility

  3. Validation of TxDOT flexible pavement skid prediction model : workshop : student guide.

    Science.gov (United States)

    2017-05-01

    Course Materials: : Background summary of Research Project 0-5627. : Short presentation of research tasks and findings from Research Project 0-6746. : Aggregate characterization with Aggregate Imaging Measurement System (AIMS) and Micro-D...

  4. Evaluation of skid measurements used by TxDOT : technical report.

    Science.gov (United States)

    2013-05-01

    Accurate estimates of wet roadway friction are critical to the safety of the traveling public, project selection, and for managing the wet weather accident reduction program. Currently, Texas is the only state that uses a one-channel, torque-type whe...

  5. 77 FR 4914 - Consumer Information Regulations; Fees for Use of Traction Skid Pads

    Science.gov (United States)

    2012-02-01

    ... controversy. Furthermore, NHTSA anticipates that any impact on the sale price of tires would be minimal...? If you have any responses to these questions, please write to us with your suggestions. J. Privacy... of an organization, business, labor union, etc.). You may review DOT's complete Privacy Act statement...

  6. Greasing the Skids of the Musical Mind: Connecting Music Learning to Mind Brain Education

    Science.gov (United States)

    Bugos, Jennifer A.

    2015-01-01

    Researchers suggest that musical training prepares the mind for learning; however, there are many obstacles to the implementation of research to practice in music education. The purpose of this article is to apply key principles of mind brain education to music education and to evaluate how music prepares the mind for learning. Practical teaching…

  7. Development of guidance system of an agricultural trailer for approaching to target position

    OpenAIRE

    Junyusen, Payungsak

    2005-01-01

    Large-scale farming requires comparatively large and heavy agricultural machinery.Because large implements are too heavy to be mounted, trailing implements are commonlyused for tillage, harrowing, spraying, and seeding operations. ...

  8. U08 : finite element analysis crash model of tractor-trailers (Phase B).

    Science.gov (United States)

    2009-08-01

    Improved understanding of truck-infrastructure crashes will enable the highway community to improve barrier design, to further reduce : the likelihood of vehicle-infrastructure fatalities and injuries, and to reduce highway congestion resulting from ...

  9. Aerodynamic Drag Reduction Technologies Testing of Heavy-Duty Vocational Vehicles and a Dry Van Trailer

    Energy Technology Data Exchange (ETDEWEB)

    Ragatz, Adam [National Renewable Energy Lab. (NREL), Golden, CO (United States); Thornton, Matthew [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2016-10-01

    This study focused on two accepted methods for quantifying the benefit of aerodynamic improvement technologies on vocational vehicles: the coastdown technique, and on-road constant speed fuel economy measurements. Both techniques have their advantages. Coastdown tests are conducted over a wide range in speed and allow the rolling resistance and aerodynamic components of road load force to be separated. This in turn allows for the change in road load and fuel economy to be estimated at any speed, as well as over transient cycles. The on-road fuel economy measurements only supply one lumped result, applicable at the specific test speed, but are a direct measurement of fuel usage and are therefore used in this study as a check on the observed coastdown results. Resulting coefficients were then used to populate a vehicle model and simulate expected annual fuel savings over real-world vocational drive cycles.

  10. Fuzzy Controller for Automatic Steering in Heavy Vehicle Semi-Trailers

    Directory of Open Access Journals (Sweden)

    Herrera-Ruíz G.

    2013-01-01

    Full Text Available Los camiones con semi-remolques son ampliamente utilizados para el transporte de mercancías debido a su bajo costo de operación, sino inherentes a estos vehículos son algunos problemas como una mala maniobrabilidad. Para minimizar los efectos de esta desventaja, entre otras soluciones, la incorporación de ejes orientables en los semirremolques se ha propuesto. Este artículo presenta una ecuación de dirección, y un controlador de lógica difusa para un semi-remolque automático forzado sistema de dirección para reducir al mínimo el apagado de seguimiento y la anchura total en curva, lo que resulta en una mejora de la maniobrabilidad del vehículo a baja velocidad. Para lograr esto, el algoritmo de control propuesto considera el ángulo de articulación y parámetros tales como la velocidad y dirección del vehículo. El sistema se probó en un instrumentada experimental semi-remolque durante varias maniobras de prueba predeterminados.

  11. Innovative on-site treatment cuts frac flowback water costs

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2011-11-15

    Water is an essential component of the drilling and hydraulic fracturing or fracking process and so the natural gas industry is a heavy user of water. Learning from other industries, gas producers are now employing mobile service providers with the latest integrated treatment systems (ITS) to clean flowback and produced water from fracturing operations at the wellhead. This paper presents a novel on-site treatment for frac water. ITS are pre-fabricated on moveable skids or a truck trailer with all the necessary controls, piping, valves, instrumentation, pumps, mixers and chemical injection modules. They remove oil and other hydrocarbons, suspended solids, and dissolved metals from the frac water using the tightly controlled chemistry, separation and filtration technology. This method can cut the average cost of treating produced water by 50%, simultaneously allowing drillers to maximize their efforts and manpower on generating oil and gas profits, rather than on water treatment.

  12. Identification of aggregates for Tennessee bituminous surface courses

    Science.gov (United States)

    Sauter, Heather Jean

    Tennessee road construction is a major venue for federal and state spending. Tax dollars each year go to the maintenance and construction of roads. One aspect of highway construction that affects the public is the safety of its state roads. There are many factors that affect the safety of a given road. One factor that was focused on in this research was the polish resistance capabilities of aggregates. Several pre-evaluation methods have been used in the laboratory to predict what will happen in a field situation. A new pre-evaluation method was invented that utilized AASHTO T 304 procedure upscaled to accommodate surface bituminous aggregates. This new method, called the Tennessee Terminal Textural Condition Method (T3CM), was approved by Tennessee Department of Transportation to be used as a pre-evaluation method on bituminous surface courses. It was proven to be operator insensitive, repeatable, and an accurate indication of particle shape and texture. Further research was needed to correlate pre-evaluation methods to the current field method, ASTM E 274-85 Locked Wheel Skid Trailer. In this research, twenty-five in-place bituminous projects and eight source evaluations were investigated. The information gathered would further validate the T3CM and find the pre-evaluation method that best predicted the field method. In addition, new sources of aggregates for bituminous surface courses were revealed. The results of this research have shown T3CM to be highly repeatable with an overall coefficient of variation of 0.26% for an eight sample repeatability test. It was the best correlated pre-evaluation method with the locked wheel skid trailer method giving an R2 value of 0.3946 and a Pearson coefficient of 0.710. Being able to predict field performance of aggregates prior to construction is a powerful tool capable of saving time, money, labor, and possibly lives.

  13. 21. century drilling rigs -- Tesco introduces new modular design

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    1998-10-01

    Development of a modular, hydraulic, self-elevating drilling rig, dubbed the `21. century drilling rig` was announced by the Tesco Corporation. The rig equipment is housed in 8 by 20 by 8.5 feet high sea containers that can be handled by a 20-ton oilfield picker. These containers, weighing about 15,000 to 20,000 pounds on average, eliminate the need for heavy and bulky standard oilfield skid buildings, besides avoiding costly over-width and over-weight permits. The containers can be easily shipped around the world at a fraction of the cost of shipping standard oilfield skid buildings. Time for shipping on land is comparable to conventional rigs, but with the added advantage of smaller and lighter loads, promising fewer transportation problems during spring breakup. Tesco also designed and built an 85-foot long, triple-axle, 24-wheel catwalk trailer to transport the top drive, drawworks and double telescoping mast as one unit. Another novel characteristic of this unit is that the hydraulic system is capable of selectable distribution of power to the main functions such as the top drive, drawworks, or mud pump, similar to the electric SCR rig. The rig also features a computerized control system managed by programmable logic controllers. The split crown and split block to facilitate wireline work, are other innovative features worthy of note.

  14. 19 CFR 10.41a - Lift vans, cargo vans, shipping tanks, skids, pallets, and similar instruments of international...

    Science.gov (United States)

    2010-04-01

    ... imported cargo to a point where export cargo is to be loaded or to an exterior port of departure by a... section 402, Tariff Act of 1930 (19 U.S.C. 1401a), as amended by the Trade Agreements Act of 1979 (TAA...

  15. The Association Between Law Enforcement Encounters and Syringe Sharing Among IDUs on Skid Row: A Mixed Methods Analysis

    Science.gov (United States)

    Simon-Freeman, Rebecca; Bluthenthal, Ricky N.

    2013-01-01

    The legal environment is one factor that influences injection drug users' (IDUs) risk for HIV and other bloodborne pathogens such as hepatitis C virus (HCV). We examined the association between law enforcement encounters (i.e., arrests and citations) and receptive syringe sharing among IDUs in the context of an intensified policing effort. We conducted a mixed methods analysis of 30 qualitative and 187 quantitative interviews with IDUs accessing services at a Los Angeles, CA syringe exchange program from 2008 to 2009. Qualitative findings illustrate concerns related to visibility, drug withdrawal, and previous history of arrest/incarceration. In quantitative analysis, the number of citations received, current homelessness, and perceiving that being arrested would be a “big problem” were independently associated with recent syringe sharing. Findings illustrate some of the unintended public health consequences associated with intensified street-level policing, including risk for HIV and HCV transmission. PMID:23620243

  16. Final Environmental Assessment for the Skid Strip Area Development Plan at Cape Canaveral Air Force Station Florida

    Science.gov (United States)

    2009-07-01

    Canada, Japan, Mexico and the former Soviet Union for the protection of migratory birds. Under the Act, taking, killing or possessing migratory...species (i.e. pigeons, European starlings, etc.) found on CCAFS are on this list. Multiple species of birds, such as mockingbirds , grackles and...the continued existence of the listed species or modify their critical habitat. Migratory Bird Treaty Act. Under this Act, taking, killing , or

  17. The Effects of Digital Control on Longitudinal Autopilots for Bank-to-Turn and Skid-Turn Missiles.

    Science.gov (United States)

    1985-12-01

    Control of Dynamic Systems Addison-Wesley Publishing Company, 1961. 7. Karadimas , C., Design and Analysis of Discrete Lateral Autogilots for BTT...GREECE 8. LT Karadimas , Christos H.N 1 Kolokotroni 156 Piraeus GREECE ’-- 138 ............-.... *9. LT Karadimt trf s, Antont os HRN 201 Glenwood Circle

  18. The broken trailer fallacy: seeing the unseen effects of government policies in post-Katrina New Orleans

    OpenAIRE

    Stringham, Edward; Snow, Nicholas

    2008-01-01

    Purpose – The purpose of this paper is to analyze some of the unseen negative effects of the post-Katrina government policies dealing with housing in New Orleans. Design/methodology/approach – Since Hurricane Katrina, the government, along with private for profit and not-for-profit organizations, has worked to rebuild the city of New Orleans. This effort is most evident in the response to the housing crisis that followed the storm. The government has spent billions of dollars and brought ...

  19. The Effects of Using a Ramp and Elevator to Load and Unload Trailers on the Behavior and Physiology of Piglets

    Directory of Open Access Journals (Sweden)

    John McGlone

    2014-09-01

    Full Text Available Transport is an inevitable process in the modern U.S. swine industry. The loading process is a novel and potentially stressful experience. This study uses behavior, heart rate and leukocyte counts to compare stress one hour before, during and after loading via ramp or elevator. Piglets were held in a home pen (control (CON, walked up and down an aisle (handled (HAN, or walked to a truck and loaded via elevator (ELE or ramp (RAM. Sitting, feeding and blood parameters did not show a significant treatment by time effect (p > 0.05. Standing behavior did not differ between CON and HAN piglets nor between RAM and ELE piglets (p > 0.05; however, CON and HAN piglets stood more than RAM and ELE piglets during treatment (p < 0.05. After treatment, drinking behavior was increased in RAM piglets (p < 0.05. The heart rate of ELE piglets decreased 6.3% after treatment; whereas the heart rate of RAM piglets remained elevated 2.4% (p < 0.05. In terms of heart rate, loading by elevator appears to be less stressful than loading by ramp.

  20. The Effects of Using a Ramp and Elevator to Load and Unload Trailers on the Behavior and Physiology of Piglets.

    Science.gov (United States)

    McGlone, John; Sapkota, Avi

    2014-09-11

    Transport is an inevitable process in the modern U.S. swine industry. The loading process is a novel and potentially stressful experience. This study uses behavior, heart rate and leukocyte counts to compare stress one hour before, during and after loading via ramp or elevator. Piglets were held in a home pen (control (CON)), walked up and down an aisle (handled (HAN)), or walked to a truck and loaded via elevator (ELE) or ramp (RAM). Sitting, feeding and blood parameters did not show a significant treatment by time effect (p > 0.05). Standing behavior did not differ between CON and HAN piglets nor between RAM and ELE piglets (p > 0.05); however, CON and HAN piglets stood more than RAM and ELE piglets during treatment (p elevated 2.4% (p elevator appears to be less stressful than loading by ramp.

  1. PWR simplified fuel element simulation using calculation trailer ANSYS CFX and PARCS including pressure drop and turbulence in the spacer

    International Nuclear Information System (INIS)

    Pena-Monferrer, C.; Chiva, S.; Miro, R.; Barrachina, T.; Pellacani, F.; Macian-Juan, R.

    2012-01-01

    With the recent development of a new computational tool for calculations of nuclear reactors based on the coupling between the PARCS neutron transport code and computational fluid dynamics commercial code (CFD) ANSYS CFX opens new possibilities in the fuel element design that contributes to a better understanding and a better simulation of the processes of heat transfer and specific phenomena of fluid dynamics as the c rossflow .

  2. Operation and maintenance manual for septic holding tank system for project W-519, two double-wide construction support trailers

    International Nuclear Information System (INIS)

    MORTIMER, C.S.

    1999-01-01

    This manual was prepared to provide detailed information for the operation and maintenance of the sanitary wastewater holding system. It sets forth system operation and maintenance as well as failure response procedures

  3. 49 CFR 571.120 - Tire selection and rims and motor home/recreation vehicle trailer load carrying capacity...

    Science.gov (United States)

    2010-10-01

    ... industry or manufacturer's designation for a rim by style or code. Weather side means the surface area of... CFR 1.50) [42 FR 7144, Feb. 7, 1977] Editorial Note: For Federal Register citations affecting § 571...

  4. 49 CFR 571.110 - Tire selection and rims and motor home/recreation vehicle trailer load carrying capacity...

    Science.gov (United States)

    2010-10-01

    ... of manufacturer's designation for a rim by style or code. Rim width means nominal distance between... Note: For Federal Register citations affecting § 571.111 see the List of CFR Sections Affected which...

  5. 75 FR 81711 - Notice of Receipt of Petition for Decision That Nonconforming 1991 Rice Beaufort Double Trailers...

    Science.gov (United States)

    2010-12-28

    ... submitting comments. Mail: Docket Management Facility: U.S. Department of Transportation, 1200 New Jersey... by Docket Management at the address and times given above. You may also view the documents from the.... Standard No. 120 Tire Selection and Rims for Motor Vehicles Other than Passenger Cars: installation of a...

  6. 78 FR 65759 - Notice of Receipt of Petition for Decision That Nonconforming 2012 Ahlm SBT 16-25 Trailers Are...

    Science.gov (United States)

    2013-11-01

    ... . Follow the online instructions for submitting comments. Mail: Docket Management Facility: U.S. Department... to the Docket: You may read the comments received by Docket Management at the address and times given.... Standard No. 120 Tire Selection and Rims for Motor Vehicles Other Than Passenger Cars: The vehicle will...

  7. 76 FR 73763 - Parts and Accessories Necessary for Safe Operation; Grant of Temporary Exemption for Innovative...

    Science.gov (United States)

    2011-11-29

    ... an exemption to allow commercial motor vehicle operators to use trailer-mounted electric brake... commercial motor vehicle operators to tow trailers equipped with trailer-mounted electric brake controllers... vehicle weight (GVW) of a trailer equipped with a trailer-mounted electric brake controller may be used...

  8. A Reading Theorist's World View through the Lens of Terrence Malick: The "Poem" Created from Transacting "the Tree of Life" Trailer

    Science.gov (United States)

    Malich, John; Kehus, Marcella J.

    2012-01-01

    In our essay we discuss Louise Rosenblatt's transactional theory of a reading event. Second, we summarize Carole Cox and Joyce Many who applied the transactional theory and designed a 1-5 point continuum to stories and films. Third, we summarize film theorists David Bordwell's constructivism; Richard Wollheim's central imagining and…

  9. A Benchmark of Tractor Trailer Operator Training Between the United States Army’s 37th Transportation Command and a Selected Civilian Industry Leader

    Science.gov (United States)

    1993-09-01

    against Japanese competitors (Camp, 1989:6; Geber , 1990:38). Due to their incredible success in controlling costs, Xerox adopted the technique company...important first step to benchmarking outside the organization ( Geber , 1990:40). Due to availability of information and cooperation of partners, this is...science ( Geber , 1990:42). Several avenues can be pursued to find best-in-class companies. Search business publications for companies frequently

  10. PWR.2 - the unique transportation

    International Nuclear Information System (INIS)

    Howell, G.E.; Wills, L.I.

    1987-01-01

    Design studies of the prototype machinery and installation of same to be used for test and evaluation of a new design of nuclear power plant for submarines, showed that there were advantages if large units could be fitted out entirely at the manufacturer's base in Barrow-in-Furness. However, they had then to be shipped to the customer at the Vulcan Naval Reactor Test Establishment in Caithness, Scotland. The transportation of the loads involved is described. The main loads were the primary unit which weighed 1300 tonnes and the secondary unit which was transported as five separate assemblies, the largest two of which weighed 151 and 43 tonnes. Five basic transportation methods were used: skidding on PTFE pads, sea passage with barge on submersible barge, rolling on airbags, skating on water skates and lifting and rolling on multi-wheeled trailers. By careful planning the primary unit was moved in 16 days and the secondary unit in 19 days. The route and methods used are described and illustrated. (U.K.)

  11. Mobile systems capability plan

    International Nuclear Information System (INIS)

    1996-09-01

    This plan was prepared to initiate contracting for and deployment of these mobile system services. 102,000 cubic meters of retrievable, contact-handled TRU waste are stored at many sites around the country. Also, an estimated 38,000 cubic meters of TRU waste will be generated in the course of waste inventory workoff and continuing DOE operations. All the defense TRU waste is destined for disposal in WIPP near Carlsbad NM. To ship TRU waste there, sites must first certify that the waste meets WIPP waste acceptance criteria. The waste must be characterized, and if not acceptable, subjected to additional processing, including repackaging. Most sites plan to use existing fixed facilities or open new ones between FY1997-2006 to perform these functions; small-quantity sites lack this capability. An alternative to fixed facilities is the use of mobile systems mounted in trailers or skids, and transported to sites. Mobile systems will be used for all characterization and certification at small sites; large sites can also use them. The Carlsbad Area Office plans to pursue a strategy of privatization of mobile system services, since this offers a number of advantages. To indicate the possible magnitude of the costs of deploying mobile systems, preliminary estimates of equipment, maintenance, and operating costs over a 10-year period were prepared and options for purchase, lease, and privatization through fixed-price contracts considered

  12. Installation report on porous friction course hot plant mix.

    Science.gov (United States)

    1972-01-01

    An investigation was initiated in the spring of 1972 to develop surface mixes with high skid resistance for use at special locations. The porous friction course will hopefully provide high skid coefficients where water drainage and hydroplaning may b...

  13. Skidder load capacity and fuel consumption HP-41C program

    Science.gov (United States)

    Ross A. Phillips

    1983-01-01

    This program gives the log weight that the skidder can move and gives fuel consumption either in liters or gallons per turn. Slope of the skid trail, skidder weight, and skid distance must be entered into the program.

  14. Video Abstracting at a Semantical Level

    OpenAIRE

    von Wenzlawowicz, Till

    2018-01-01

    One the most common form of a video abstract is the movie trailer. Contemporary movie trailers share a common structure across genres which allows for an automatic generation and also reflects the corresponding moviea s composition. In this thesis a system for the automatic generation of trailers is presented. In addition to action trailers, the system is able to deal with further genres such as Horror and comedy trailers, which were first manually analyzed in order to identify their basic st...

  15. 46 CFR 163.003-13 - Construction.

    Science.gov (United States)

    2010-10-01

    ... (1/8 in.) deep cut in a diamond pattern so that water runs off the edge of the step. Non-skid grit is... least 115 mm (41/2 in.) wide with a non-skid surface that does not retain water. Adhesive non-skid...

  16. Road - scaled Magic Formula for braking performance of cars

    NARCIS (Netherlands)

    Hogt, R.M.M.; Oosten, J.J.M. van

    2000-01-01

    Ths skid resistance of the road surface is one of the parameters that influence the active vehicle safety and consequently the traffic safety. Up till now, in the Netherlands skid resistance has been evaluated by means of of a statistical relation between the skid resistance value and accident risk.

  17. Slipongevallen : beschouwingen over eigenschappen van wegdekken en voertuigen. Eerste interimrapport van de SWOV-werkgroep banden, wegdekken en slipongevallen.

    NARCIS (Netherlands)

    SWOV-werkgroep banden, wegdekken en slipongevallen

    1969-01-01

    This is the first report of SWOV Working Group "Tyres, road surfaces and skidding accidents". Skidding is considered to be an important contributory factor in traffic accidents. Skidding can in principle be prevented in two ways, viz: (1) reduction of the minimum necessary friction, and (2)

  18. The role of research and development work on the production costs of logging residue chips

    International Nuclear Information System (INIS)

    Nousiainen, I.

    1998-01-01

    Purchase of logging residue chips in the early 80s was mainly based on production chains in which the residues were collected with load-carrying tractors at the road-side storage, from which it was chipped or crushed directly into the trailer of a waiting lorry. Six new production chains were developed in the national Bioenergy Research Programme. Three of these are now commercial. Kotimaiset Energiat Pekka Lahti Ky has developed, on the basis of a traditional logging residue production chain, a high-efficiency EVOLUTION intermediate storage chipper, suitable for chipping of logging residues. Oy Logset Ab has developed a new type of lot-chipping chip-harvester, the LOGSET 536C. Nested containers have also been developed for the lot-chipping method. MOHA multi-purpose chipper, in which the chipping and lorry-transportation of chips have been integrated, has also been developed as a part of the research programme. In addition to these, a chipper-container lorry combination, transportation of complete logging residues, and whole- tree skidding have been developed in the project for production of logging residue chips. In the beginning of the 80s the production costs of logging residues at the place of utilization were about 52 FIM/MWh, and the average transportation distance 50 km. In 1992 the production costs, 64 FIM/MWh at the distance of 100 km, was significantly higher than the price of alternative fuels. The lowest production cost level, obtainable by the developed methods is 46 FIM/MWh

  19. Wood chip production technology and costs for fuel in Namibia

    Energy Technology Data Exchange (ETDEWEB)

    Leinonen, A.

    2007-12-15

    This work has been done in the project where the main target is to evaluate the technology and economy to use bush biomass for power production in Namibia. The project has been financed by the Ministry for Foreign Affairs of Finland and the Ministry of Agriculture, Water and Forestry of the Republic of Namibia. The target of this study is to calculate the production costs of bush chips at the power plant using the current production technology and to look possibilities to develop production technology in order to mechanize production technology and to decrease the production costs. The wood production costs are used in feasibility studies, in which the technology and economy of utilization of wood chips for power generation in 5, 10 and 20 MW electric power plants and for power generation in Van Eck coal fired power plant in Windhoek are evaluated. Field tests were made at Cheetah Conservation Farm (CCF) in Otjiwarongo region. CCF is producing wood chips for briquette factory in Otjiwarongo. In the field tests it has been gathered information about this CCF semi-mechanized wood chip production technology. Also new machines for bush biomass chip production have been tested. A new mechanized production chain has been designed on the basis of this information. The production costs for the CCF semi-mechanized and the new production chain have been calculated. The target in the moisture content to produce wood chips for energy is 20 w-%. In the semi-mechanized wood chip production chain the work is done partly manually, and the supply chain is organized into crews of 4.8 men. The production chain consists of manual felling and compiling, drying, chipping with mobile chipper and manual feeding and road transport by a tractor with two trailers. The CCF production chain works well. The chipping and road transport productivity in the semimechanized production chain is low. New production machines, such as chainsaw, brush cutter, lawn mover type cutter, rotator saw in skid

  20. 26 CFR 48.4061(a)-3 - Definitions.

    Science.gov (United States)

    2010-04-01

    ...” includes automobile buses, and truck and bus trailers and semitrailers. (b) Other automobile. The term... semitrailers suitable for use in connection with passenger automobiles, but does not include house trailers. (c...

  1. The Short Readings Project: A CALL Reading Activity Utilizing Vocabulary Recycling

    Science.gov (United States)

    Johnson, Andrew; Heffernan, Neil

    2006-01-01

    In 2003 multimedia-based English Trailers (www.english-trailers.com) joined the vast array of web sites dedicated to language learning enabling students, either autonomously or in a CALL classroom, to study English via movie commercials. To assist students in comprehending 10 trailers found on the site, the authors created the Short Readings…

  2. Experimental and Numerical Analysis of Bridge Response due to Modular Combination Vehicle Systems

    DEFF Research Database (Denmark)

    Kirkegaard, Poul Henning; Bang, R.

    2004-01-01

    Articulated vehicles composed of a tractor and a semi-trailer are dominant in international traffic within the EU. Also road trains can be obtained as an extended articulated vehicle by adding a trailer. A dolly carrying a semi-trailer may replace a road train in the same situation. The present...

  3. COST TU0702: Real-time monitoring, surveillance and control of road networks under adverse conditions

    OpenAIRE

    DO, Minh Tan

    2012-01-01

    Contribution au chapitre 1: Pavement surface conditions during adverse weather. Effects of adverse weather conditions on pavement surface conditions are assessed by measuring the effect of water and snow/ice on skid resistance. Skid resistance is defined as the contribution of the road surface to the tire/road friction. Water alters skid resistance by masking the top of the road surface. The tire tread pattern and the road macro/microtexture can help to evacuate the water film. However,...

  4. Numerical Simulation of Tire-Pavement Interaction

    NARCIS (Netherlands)

    Srirangam, S.K.

    2015-01-01

    Good skid resistance of a pavement surface is essential for road safety. Loss of skid resistance can lead to property damage and loss of lives. Ever increasing need of driver safety poses challenges to the highway authorities to evaluate pavement conditions even more precisely under different

  5. 77 FR 21662 - Amendment of Class D Airspace; Cocoa Beach, FL

    Science.gov (United States)

    2012-04-11

    ...-0099; Airspace Docket No. 12-ASO-11] Amendment of Class D Airspace; Cocoa Beach, FL AGENCY: Federal... Class D airspace at Cape Canaveral Skid Strip, Cocoa Beach, FL, by correcting the geographic coordinates... of Cape Canaveral Skid Strip, Cocoa Beach, FL. Also, the geographic coordinates for the airport need...

  6. Effects of soil compaction on residual stand growth in central Appalachian hardwood forest: a preliminary case study

    Science.gov (United States)

    Jingxin Wang; Chris LeDoux; Michael Vanderberg; Li Yaoxiang

    2006-01-01

    A preliminary study that quantified the impacts of soil compaction on residual tree growth associated with ground-based skidding traffic intensity and turn payload size was investigated in the central Appalachian hardwood forest. The field study was carried out on a 20-acre tract of the West Virginia University Research Forest. Skid trails were laid out in 170' -...

  7. Commercial Grade Item (CGI) Dedication for Leak Detection Relays

    International Nuclear Information System (INIS)

    KOCH, M.R.; JOHNS, B.R.

    1999-01-01

    This Test Plan provides a test method to dedicate the leak detection relays used on the new Pumping and Instrumentation Control (PIC) skids. The new skids are fabricated on-site. The leak detection system is a safety class system per the Authorization Basis

  8. Logging costs and cutting methods in young-growth ponderosa pine in California

    Science.gov (United States)

    Philip M. McDonald; William A. Atkinson; Dale O. Hall

    1969-01-01

    Mixed-conifer stands at the Challenge Experimental Forest, Calif., were cut to four specifications: seed-tree, group selection, single tree selection, and clearcut. Logging costs and production rates were compared and evaluated. Cutting method had little effect on felling or skidding production; felling ranged from 1,802 to 2,019 bd ft per hour, and skidding from 3,138...

  9. The relation between surface texture of asphalt pavements and ...

    African Journals Online (AJOL)

    Traffic conditions, road variables, skid resistance, texture depth, and accident data for the period 2000 - 2004 were analysed to develop models to establish the inter-relationships between skid resistance, macrotexture and incidence of accidents. Poisson regression relating to accident frequency and exposure variables ...

  10. Soil response to skidder trafficking and slash application

    Science.gov (United States)

    Brian M. Parkhurst; W. Michael Aust; M. Chad Bolding; Scott M. Barrett; Emily A. Carter

    2018-01-01

    Ground-based timber harvesting systems are common in the United States. Harvesting machinery can negatively influence soils by increasing erosion and decreasing site productivity. Skid trails can become compacted and erosive. Slash applications to skid trails are effective for erosion control, yet few investigations have examined effects of slash on soil physical...

  11. Forestry best management practices and sediment control at skidder stream crossings

    Science.gov (United States)

    Laura R. Wear; W. Michael Aust; M. Chad Bolding; Brian D. Strahm; Andrew C. Dolloff

    2015-01-01

    Stream crossings for skid trails have high sediment delivery ratios. Forestry Best Management Practices (BMPs) have proven to be effective for erosion control, but few studies have quantified the impact of various levels of BMPs on sedimentation. In this study, three skid-trail stream-crossing BMP treatments were installed on nine operational stream crossings (three...

  12. 2007 Global Demilitarization Symposium and Exhibition

    Science.gov (United States)

    2007-05-17

    Directorate Design Development - Cryofracture Subsystem - • Munitions Preparation Trailer – Munition loading fixtures to ensure proper orientation – Conveyor ...in cryobath – Empty fixture return heater – Conveyor to transfer munitions to Cryofracture Press Trailer • Cryofracture Press Trailer – 3.0 lbs. (TNT...diverters to separate fracture munitions into four feed chutes – Press munitions loader robot to transfer munitions to press Energetics, Warheads

  13. Structural analysis of hatch cover plates on Fuels and Materials Examination Facility high bay mezzanine

    International Nuclear Information System (INIS)

    Dixson, G.E.

    1997-01-01

    In order to move the Idaho National Engineering Laboratory (INEL) Light Duty Utility Arm (LDUA) trailer into position for testing on the Fuels and Materials Examination Facility (FMEF) 42 ft level mezzanine one of the trailer's wheels will have to sit on a circular hatch cover fabricated from one-inch thick steel plate. The attached calculations verify that the hatch cover plate is strong enough to support the weight of the INEL LDUA trailer's wheel

  14. Mobile emergency response unit

    International Nuclear Information System (INIS)

    Kadi, W.J.; Trolan, R.T.; Becker, J.F.

    1979-01-01

    The Hotspot quick-response unit was the solution to a requirement to find, identify, and control areas of radioactive contamination at the scene of a nuclear weapons accident. The unit consists of two trucks and two trailers, and is designed to be transported by one U.S. Air Force C-141. One truck (generator truck) carries a 40 kW generator-heater-air conditioner combination, spare tires, and accessories. The other (water truck) carries supplies and a 250-gal water tank. One trailer (counting trailer) contains detecting, counting, and recording equipment. The other (decontaminating trailer) contains a shower, sink, 30-gal hot water tank, and supplies

  15. Long Length Contaminated Equipment Maintenance Plan

    International Nuclear Information System (INIS)

    ESVELT, C.A.

    2000-01-01

    The purpose of this document is to provide the maintenance requirements of the Long Length Contaminated Equipment (LLCE) trailers and provide a basis for the maintenance frequencies selected. This document is applicable to the LLCE Receiver trailer and Transport trailer assembled by Mobilized Systems Inc. (MSI). Equipment used in conjunction with, or in support of, these trailers is not included. This document does not provide the maintenance requirements for checkout and startup of the equipment following the extended lay-up status which began in the mid 1990s. These requirements will be specified in other documentation

  16. 29 CFR 779.320 - Partial list of establishments whose sales or service may be recognized as retail.

    Science.gov (United States)

    2010-07-01

    .... Confectionery stores. Crematories. Dance halls. Delicatessen stores. Department stores. Drapery stores. Dress.... Stationery stores. Taxidermists. Theatres. Tourist homes. Trailer camps. Undertakers. Variety shops. Watch...

  17. 15 CFR 30.38 - Exemption from the requirements for reporting complete commodity information.

    Science.gov (United States)

    2010-01-01

    ... personal adornment, toilet articles, medicinal supplies, food, souvenirs, games, and similar personal... vehicles, such as passenger cars, station wagons, trucks, trailers, motorcycles, bicycles, tricycles, baby...

  18. Kuusalus saab rattad alla autotreileritööstus / Peep Talimaa

    Index Scriptorium Estoniae

    Talimaa, Peep

    2008-01-01

    OÜ-le Trucks & Trailers kuuluvast Kuusalu treileritehasest. Lisa: Kuusalu treileritehase ajalugu ja eellugu; Autotreileri valmimine; Üldandmeid treilerite kohta; Kuusalu treileritehase ajalugu ja eellugu

  19. Tyres and road surfaces : experimental multifactor investigation of the factors affecting the brake and side way forces between car tyres and wet road surfaces : summary, conclusions and recommendations from the study by Sub-Committee I of the Working Group on "Tyres, Road Surfaces and Skidding Accidents".

    NARCIS (Netherlands)

    1976-01-01

    The study concerning the contact between a tyre and the road surface was conducted in three phases. In the first phase the first and second-order factors were separated. The factors: type of road surface, tyre type, tread depth, water depth, tyre pressure and tyre load were included in an

  20. NASA diagonal-braked test vehicle evaluation of traction characteristics of grooved and ungrooved runway surfaces at Miami International Airport, Miami, Florida, 8-9 May 1973

    Science.gov (United States)

    Horne, W. B.

    1977-01-01

    Two runways were evaluated under artificially wetted conditions with the NASA diagonal-braked vehicle (DBV). Results of the evaluation which included a pavement drainage analysis, a pavement skid resistance analysis, and a DBV wet/dry stopping distance ratio analysis indicated that the ungrooved runway surfaces had poor water drainage characteristics and poor skid resistance under wet conditions at high speeds especially in rubbercoated areas of the runways. Grooving runways to a transverse 1-1/4 x 1/4 x 1/4 inch pattern greatly improved both the water drainage and pavement skid resistance capability of these asphaltic concrete surfaces.

  1. Fundamentos para la determinación de la capacidad de carga de un remolque cañero durante su proceso de diseño // Basics for the determination of load capacity of a sugar cane trailer during its design process.

    Directory of Open Access Journals (Sweden)

    V. Álvarez-Sánchez

    2009-05-01

    Full Text Available En este trabajo se muestra como determinar el valor racional de la capacidad de carga de unremolque cañero durante su proceso de diseño, de modo que en el momento de su explotación losgastos de la actividad de transporte tiendan a un mínimo.El principio que se ha seguido para ello es el de modelar matemáticamente su requerimientofuncional fundamental, capacidad de carga, en función de los gastos de explotación con los que sevincula, que son los costos del combustible y los gastos de amortización.Como restricciones del modelo se analizaron: La potencia efectiva del motor (Ne, el tiemposumario de traslado (Ttras y la fuerza tangencial de tracción máxima (Pφ.Palabras claves: diseño, remolque cañero, eficiencia, capacidad de carga, costos mínimos._____________________________________________________________________________AbstractIn this work it is shown how to determine the rational value of load capacity in a CANE trolleyduring its design process, so at the exploitation moment the transportation costs are minimized.The principle followed in this research was the mathematical modeling of their fundamentalfunctional requirement (load capacity as a function of the exploitation and other related expenses.For the restrictions of the model the following aspects were considered: The effective power of theengine (Ne, the summary time of transfer of the sugar cane (Ttras and the maximum tangentialforce of traction (Pφ.Key words: design, sugar cane trolley, efficiency, load capacity, minimum costs

  2. PWR simplified fuel element simulation using calculation trailer ANSYS CFX and PARCS including pressure drop and turbulence in the spacer; Simulacion de un elemento combustible PWR simplicificado mediante el calculo acoplado ANSYS CFX y PARCS incluyendo caida de presion y turbulencia en el espaciador

    Energy Technology Data Exchange (ETDEWEB)

    Pena-Monferrer, C.; Chiva, S.; Miro, R.; Barrachina, T.; Pellacani, F.; Macian-Juan, R.

    2012-07-01

    With the recent development of a new computational tool for calculations of nuclear reactors based on the coupling between the PARCS neutron transport code and computational fluid dynamics commercial code (CFD) ANSYS CFX opens new possibilities in the fuel element design that contributes to a better understanding and a better simulation of the processes of heat transfer and specific phenomena of fluid dynamics as the {sup c}rossflow{sup .}.

  3. 49 CFR 174.200 - Special handling requirements.

    Science.gov (United States)

    2010-10-01

    ...) materials may not be loaded in a truck body or trailer equipped with any type of lighted heater or any automatic heating or refrigerating apparatus when such truck bodies or trailers are loaded on flatcars... (flammable gas) materials only if: (1) The lading space is not equipped with any electrical apparatus that is...

  4. Collision loads on bridge piers : phase 2, report of guidelines for designing bridge piers and abutments for vehicle collisions

    Science.gov (United States)

    2011-03-01

    An instrumented, simulated bridge pier was constructed, and two full-scale collisions with an : 80,000-lb van-type tractor-trailer were performed on it. The trailer was ballasted with bags of sand on : pallets. The simulated pier was 36 inches in dia...

  5. 76 FR 54290 - Decision That Certain Nonconforming Motor Vehicles Are Eligible for Importation

    Science.gov (United States)

    2011-08-31

    ... modified to conform to all applicable FMVSS in effect on its date of manufacture. Moreover, such a vehicle...-0173: Nonconforming Vehicles: 1991 Rice Beaufort Double trailers. Substantially Similar U.S. Certified Vehicles: 1991 Rice Beaufort Double trailers. Notice of Petition: Published at: 75 FR 81711 (December 28...

  6. 77 FR 37957 - Guizhou Tyre Corporation; Receipt of Petition for Decision of Inconsequential Noncompliance

    Science.gov (United States)

    2012-06-25

    ...'') has determined that certain Samson and Advance brand ST trailer Tires, do not fully comply with... involved: Affected are approximately 4,291 size ST235/ 85R16/14 ply Samson and Advance brand ST Trailer..., although there is no limit to the length of necessary attachments to the comments. If comments are...

  7. 75 FR 68854 - JCA Corporation, Receipt of Petition for Decision of Inconsequential Noncompliance

    Science.gov (United States)

    2010-11-09

    ... Corporation (JCA) \\1\\ has determined that certain Trail America brand Special Trailer ``ST'' tires that it... merits of the petition. JCA estimates that approximately 899,804 Trail America brand Special Trailer ``ST... attachments to the comments. If comments are submitted in hard copy form, please ensure that two copies are...

  8. 49 CFR 376.12 - Written lease requirements.

    Science.gov (United States)

    2010-10-01

    ... contractor or an employee of the authorized carrier lessee. An independent contractor relationship may exist... how these devices, other than those painted directly on the equipment, will be returned to the carrier... assume the risks and costs of fines for overweight and oversize trailers when the trailers are pre-loaded...

  9. 78 FR 12828 - Guizhou Tyre Corporation; Grant of Petition for Decision of Inconsequential Noncompliance

    Science.gov (United States)

    2013-02-25

    ...'') has determined that certain Samson and Advance brand ST trailer Tires, do not fully comply with..., and all supporting documents log onto the Federal Docket Management System (FDMS) Web site at: http... Advance brand ST Trailer Tires manufactured from December 4, 2011 through March 31, 2012. Noncompliance...

  10. 75 FR 68663 - Federal Motor Vehicle Safety Standards; Rear Impact Guards; Rear Impact Protection; Technical...

    Science.gov (United States)

    2010-11-08

    ... nationwide downward trend in fatalities when a passenger vehicle rear-ends a tractor- trailer--neither in... total crashes. The Fatality Accident Reporting System does not list the model year of the trailer. In... submitted on behalf of an association, business, labor union, etc.). You may review DOT's complete Privacy...

  11. Keeping Students Safe: Introducing the Monolithic Dome

    Science.gov (United States)

    Lanham, Carol

    2009-01-01

    The tiny town of Niangua, Missouri, made national headlines in 2008 when a rare cluster of winter tornadoes tore across the state on an unseasonably warm January night. The twisters killed a Niangua woman in her trailer home and destroyed numerous other structures. News photos of the trailer debris were a sobering reminder of the vulnerability of…

  12. 78 FR 15920 - Federal Motor Vehicle Safety Standards; Tire Selection and Rims

    Science.gov (United States)

    2013-03-13

    ... [Docket No. NHTSA-2013-0030] RIN 2127-AL24 Federal Motor Vehicle Safety Standards; Tire Selection and Rims... Safety Standard (FMVSS) No. 110 to make it clear that special trailer (ST) tires are permitted to be... also proposes to exclude these trailers from a vehicle testing requirement that a tire must be retained...

  13. 36 CFR 7.43 - Natchez Trace Parkway.

    Science.gov (United States)

    2010-07-01

    ...) Trailers. Trailers are permitted when used non-commercially to transport baggage, camping equipment, horses... written permission when transporting people for special recreational or educational purposes. (7) Towed... exceed 55 feet in length. (d) Beer and alcoholic beverages. The possession of beer or any alcoholic...

  14. U10 : Trusted Truck(R) II (phase B).

    Science.gov (United States)

    2009-01-01

    Phase B of the Trusted Truck II project built on the system developed in Phase A (or Year 1). For the implementation portion of the project, systems were added to the trailer to provide additional diagnostic trailer data that can be sent to the TTM...

  15. 36 CFR 7.65 - Assateague Island National Seashore.

    Science.gov (United States)

    2010-07-01

    ... the registration box for the blinds. (11) The hunting of upland game shall not be conducted within 300..., That towed travel trailers may travel no farther south than the northern limits of the Big Fox Levels... unless one member of the party is actively engaged in fishing at all times. Towed travel trailers used as...

  16. 49 CFR 570.57 - Air brake system and air-over-hydraulic brake subsystem.

    Science.gov (United States)

    2010-10-01

    ... the drain cocks in the service and supply reservoir on the truck or truck-tractor. Note the pressure.... Close the drain cocks, and, with the trailer(s) uncoupled, check air pressure buildup at the... brakes fully applied. (b) Air brake system hoses, tubes and connections. Air system tubes, hoses and...

  17. Avionics System Development for a Rotary Wing Unmanned Aerial Vehicle

    National Research Council Canada - National Science Library

    Greer, Daniel

    1998-01-01

    .... A helicopter with sufficient lift capability was selected and a lightweight aluminum structure was built to serve as both an avionics platform for the necessary equipment and also as a landing skid...

  18. Antiskid braking system

    Science.gov (United States)

    Pazdera, J. S.

    1974-01-01

    Published report describes analytical development and simulation of braking system. System prevents wheels from skidding when brakes are applied, significantly reducing stopping distance. Report also presents computer simulation study on system as applied to aircraft.

  19. Surface friction measurements of fine-graded asphalt mixtures : final report, June 2008.

    Science.gov (United States)

    2008-06-01

    Skid resistance is generated by the development of friction between the vehicle tire and : roadway surface, and is partially dependent upon the characteristics of the pavement : texture. Microtexture and macrotexture are the critical components of pa...

  20. EPA Nonregulatory Nonroad Duty Cycles

    Science.gov (United States)

    EPA nonregulatory, nonroad duty cycles for equipment such as agricultural tractors, backhoe loaders,crawlers tractors, excavators, arc welding skid steer loaders, and wheel loaders. Also,test procedures, laboratory methods, and emissions for this equipmen

  1. "Mon cousin Kankrine" / Валерия Бобылева

    Index Scriptorium Estoniae

    Бобылева, Валерия, 1945-

    2006-01-01

    Perekondlikest seostest järgmiste suguvõsade vahel: Sjöbergid - Hannibalid - Muravjovid - Puškinid - Gontšarovid - Zagrjažskid - Liphartid - Possed - Smittenid - Barclay de Tollyd - Leviz of Menarid

  2. North Slope mobile technology and its application to spill response

    International Nuclear Information System (INIS)

    Mabile, N.J.; Helinski, R.

    1992-01-01

    At ARCO Alaska's Prudhoe Bay operation, improved preparedness for oil spill response has been achieved by applying mobile technology according to an innovative concept. To ensure safe and efficient deployment of resources during a spill response, a rapid deployment equipment delivery system was developed. This multi-functional, modularized system was based on a previously developed chemical delivery system consisting of a primary transport truck equipped with a Dempsey Dumpster Dinosaur skid. This same modularized concept was used for spill response with the substitution of function-specific spill response vans in place of chemical transport tanks. Within this concept, skid-mounted mission-specific vans are rapidly deployed to multiple sites in a fire brigade type of response. Skid-mounted units include land and water containment, recovery, boom deployment, command center, generator skid, restroom facility, and skimmer units. 4 figs

  3. A pavement management research program for Oregon highways : final report.

    Science.gov (United States)

    1989-12-01

    An extensive program was developed to measure pavement deflection skid resistance, and rideability throughout Oregon. The data from those "objective" measures were then evaluated for correlations with observed pavement distress and traffic factors. :...

  4. Tire-to-Surface Friction-Coefficient Measurements with a C-123B Airplane on Various Runway Surfaces

    Science.gov (United States)

    Sawyer, Richard H.; Kolnick, Joseph J.

    1959-01-01

    An investigation was conducted to obtain information on the tire-to-surface friction coefficients available in aircraft braking during the landing run. The tests were made with a C-123B airplane on both wet and dry concrete and bituminous pavements and on snow-covered and ice surfaces at speeds from 12 to 115 knots. Measurements were made of the maximum (incipient skidding) friction coefficient, the full-skidding (locked wheel) friction coefficient, and the wheel slip ratio during braking.

  5. Project W-320, 241-C-106 sluicing HVAC calculations, Volume 1

    International Nuclear Information System (INIS)

    Bailey, J.W.

    1998-01-01

    This supporting document has been prepared to make the FDNW calculations for Project W-320, readily retrievable. The report contains the following calculations: Exhaust airflow sizing for Tank 241-C-106; Equipment sizing and selection recirculation fan; Sizing high efficiency mist eliminator; Sizing electric heating coil; Equipment sizing and selection of recirculation condenser; Chiller skid system sizing and selection; High efficiency metal filter shielding input and flushing frequency; and Exhaust skid stack sizing and fan sizing

  6. Flightfax - Army Aviation Risk-Management Information. Volume 25, Number 11, August 1997. Snow

    Science.gov (United States)

    1997-08-01

    but why haven’t Loach that would ensure our surviving a multiple- you been acknowledging the radio calls?" A quick wire strike. check confirmed that...helicopter upright with only the collective and Loach on post with skid shoes, the skid cleats would pedals. have snagged the middle wire and flipped...is more cost effective to overhaul until because masking violated FAA Mr. Ken Muzzo, DSN 490-2257 (314-260- the retirement life is reached. The

  7. Project W-320, 241-C-106 sluicing HVAC calculations, Volume 1

    Energy Technology Data Exchange (ETDEWEB)

    Bailey, J.W.

    1998-08-07

    This supporting document has been prepared to make the FDNW calculations for Project W-320, readily retrievable. The report contains the following calculations: Exhaust airflow sizing for Tank 241-C-106; Equipment sizing and selection recirculation fan; Sizing high efficiency mist eliminator; Sizing electric heating coil; Equipment sizing and selection of recirculation condenser; Chiller skid system sizing and selection; High efficiency metal filter shielding input and flushing frequency; and Exhaust skid stack sizing and fan sizing.

  8. Piecewise affine control for fast unmanned ground vehicles

    OpenAIRE

    Benine Neto , André; Grand , Christophe

    2012-01-01

    International audience; Unmanned ground vehicles (UGV) may experience skidding when moving at high speeds, and therefore have its safety jeopardized. For this reason the nonlinear dynamics of lateral tire forces must be taken into account into the design of steering controllers for autonomous vehicles. This paper presents the design of a state feedback piecewise affine controller applied to an UGV to coordinate the steering and torque distribution inputs in order to reduce vehicle skidding on...

  9. Tire-Pavement Friction Characteristics with Elastic Properties of Asphalt Pavements

    OpenAIRE

    Miao Yu; Guoxiong Wu; Lingyun Kong; Yu Tang

    2017-01-01

    The skid-resisting performance of pavement is a critical factor in traffic safety. Recent studies primarily analyze this behavior by examining the macro or micro texture of the pavement. It is inevitable that skid-resistance declines with time because the texture of pavement deteriorates throughout its service life. The primary objective of this paper is to evaluate the use of different asphalt pavements, varying in resilience, to optimize braking performance on pavement. Based on the systema...

  10. Pengaruh Penyaradan terhadap Kerusakan Tegakan Tinggal pada Berbagai Tingkat Kelerengan

    OpenAIRE

    Dulsalam, Dulsalam; Sukanda, Sukanda

    1988-01-01

    An investigation or the effect of skidding to residual stand damage on several slope degrees has been done at PT Sumpol Timber in South Kalimantan in 1987. The purpose of this investigation is to seek information on the residual stand damage caused by skidding on several slope degrees. The investigation took place in three different slope degrees: i.e.: 0 - 20 %, 20 - 40 %, and > 40%. Sample plots were selected with completely randomized ...

  11. High Tonnage Forest Biomass Production Systems from Southern Pine Energy Plantations

    Energy Technology Data Exchange (ETDEWEB)

    Taylor, Steve [Auburn Univ., AL (United States); McDonald, Timothy [Auburn Univ., AL (United States); Fasina, Oladiran [Auburn Univ., AL (United States); Gallagher, Tom [Auburn Univ., AL (United States); Smidt, Mathew [Auburn Univ., AL (United States); Mitchell, Dana [US Dept. of Agriculture (USDA) Forest Service, Washington, DC (United States); Klepac, John [US Dept. of Agriculture (USDA) Forest Service, Washington, DC (United States); Thompson, Jason [US Dept. of Agriculture (USDA) Forest Service, Washington, DC (United States); Sprinkle, Wes [US Dept. of Agriculture (USDA) Forest Service, Washington, DC (United States); Carter, Emily [US Dept. of Agriculture (USDA) Forest Service, Washington, DC (United States); Grace, Johnny [US Dept. of Agriculture (USDA) Forest Service, Washington, DC (United States); Rummer, Robert [US Dept. of Agriculture (USDA) Forest Service, Washington, DC (United States); Corley, Frank [Corley Land Services, Chapman, AL (United States); Somerville, Grant [Tigercat, Brantford, ON (Canada)

    2014-09-01

    buncher is now a production machine for Tigercat and is being sold in their current product line. The high-speed felling system was paired with a Tigercat 630D skidder and high-capacity grapple; one that could match the felling productivity when pulling small stems. The harvesting system minimized hourly costs using a single, high-capacity skidder (with a single operator), rather than two smaller ones, which is the traditional practice. The skidder itself can be considered a mid-range size and had an engine no larger than other machines in its class, but it incorporated a very large capacity 25 ft2 grapple. The large grapple is well suited to grabbing and hauling a large bunch of small-diameter trees, as produced by the high tonnage feller buncher. The grapple worked effectively in larger stems as well, but its ability to carry large numbers of small stems meant the average payload did not drop as stand DBH decreased. Tests with the machine indicated its travel speeds were nearly the same as, or perhaps slightly better than, conventionally equipped skidders, but grapple capacity was 75% larger. Productivity and cost per ton of the new skidder were better than conventional skidders for average skid distances of any length greater than 100 feet. Measured skidder productivity was as high as 143 gt/PMH. Its productivity exceeded that of the high-capacity feller buncher for skid distances out to nearly 700 feet, so system productivity could be expected to remain high for stands of a size typical in the southern U.S. The Tigercat 630D skidder is a production machine for Tigercat and the large grapple can now be ordered by customers using it for small diameter trees. When the feller buncher and skidder are analyzed as a two-machine system, overall productivity is fixed at the level of the least productive machine. Results from a set of side-by-side tests in the same density stand with conventional feller bunchers and skidders showed that the high tonnage system produced 97 gt

  12. A new type-B cask design for transporting 252Cf

    International Nuclear Information System (INIS)

    Simmons, C.M.

    2000-01-01

    plus the associated equipment is collectively called the NAC Californium Transport System (CTS) and consists of the cask, impact limiter, and transport skid, which is designed to mate with and provide tiedowns to a dedicated trailer. The Safety Analysis Report for Packaging (SARP) was presented to DOE regulators in late March of 1999. The questions raised by the DOE regulators are currently being evaluated by NAC and ORNL. After DOE approves the SARP and issues a Certificate of Compliance (CoC) for the cask design, NRC will start its evaluation. Fabrication will not begin until all certifications (DOE and NRC CoCs, as well as an International Atomic Energy Agency Certificate of Competent Authority for international transport) have been obtained. This project is extremely challenging because of the complexity of the design and the certification and fabrication processes. The certification process is complicated by the necessity to obtain CoCs from two different regulatory agencies

  13. Software Verification and Validation Report for the 244-AR Vault Interim Stabilization Ventilation System

    International Nuclear Information System (INIS)

    YEH, T.

    2002-01-01

    This document reports on the analysis, testing and conclusions of the software verification and validation for the 244-AR Vault Interim Stabilization ventilation system. Automation control system will use the Allen-Bradley software tools for programming and programmable logic controller (PLC) configuration. The 244-AR Interim Stabilization Ventilation System will be used to control the release of radioactive particles to the environment in the containment tent, located inside the canyon of the 244-AR facility, and to assist the waste stabilization efforts. The HVAC equipment, ducts, instruments, PLC hardware, the ladder logic executable software (documented code), and message display terminal are considered part of the temporary ventilation system. The system consists of a supply air skid, temporary ductwork (to distribute airflow), and two skid-mounted, 500-cfm exhausters connected to the east filter building and the vessel vent system. The Interim Stabilization Ventilation System is a temporary, portable ventilation system consisting of supply side and exhaust side. Air is supplied to the containment tent from an air supply skid. This skid contains a constant speed fan, a pre-filter, an electric heating coil, a cooling coil, and a constant flow device (CFD). The CFD uses a passive component that allows a constant flow of air to pass through the device. Air is drawn out of the containment tent, cells, and tanks by two 500-cfm exhauster skids running in parallel. These skids are equipped with fans, filters, stack, stack monitoring instrumentation, and a PLC for control. The 500CFM exhaust skids were fabricated and tested previously for saltwell pumping activities. The objective of the temporary ventilation system is to maintain a higher pressure to the containment tent, relative to the canyon and cell areas, to prevent contaminants from reaching the containment tent

  14. Tire-Pavement Friction Characteristics with Elastic Properties of Asphalt Pavements

    Directory of Open Access Journals (Sweden)

    Miao Yu

    2017-11-01

    Full Text Available The skid-resisting performance of pavement is a critical factor in traffic safety. Recent studies primarily analyze this behavior by examining the macro or micro texture of the pavement. It is inevitable that skid-resistance declines with time because the texture of pavement deteriorates throughout its service life. The primary objective of this paper is to evaluate the use of different asphalt pavements, varying in resilience, to optimize braking performance on pavement. Based on the systematic dynamics of tire-pavement contact, and analysis of the tire-road coupled friction mechanism and the effect of enlarging the tire-pavement contact area, road skid resistance was investigated by altering the elastic modulus of asphalt pavement. First, this research constructed the kinetic contact model to simulate tire-pavement friction. Next, the following aspects of contact behaviors were studied when braking: tread deformation in the tangential pavement interface, actual tire-pavement contact in the course, and the frictional braking force transmitted from the pavement to the tires. It was observed that with improvements in pavement elasticity, the actual tire-pavement contact area increased, which gives us the ability to effectively strengthen the frictional adhesion of the tire to the pavement. It should not be overlooked that the improvement in skid resistance was caused by an increase in pavement elasticity. This research approach provides a theoretical basis and design reference for the anti-skid research of asphalt pavements.

  15. Small timber harvesting on slopes using the small winch and modified Goldberg methods

    Energy Technology Data Exchange (ETDEWEB)

    Fritzsche, W; Sagowski, H

    1981-01-01

    Results are summarized of work studies in 1980 during thinnings in 50- to 60-yr-old beech stands in Forest District Rinteln (Lower Saxony) involving: (a) one-man working using a chain saw and a NORDFOR small (0.8 t) winch to skid 1-2 logs (4-6 m long) to skidding lane, followed by forwarder transport; or (b) 2-man working (in rotation) using a chain saw and a 65 hp tractor/Schlang and Reichart double-drum winch combination to skid 8-15 trimmed tree lengths to goods road or stacking area. Average log volume (cubic m) was 0.18 (a), 0.24 (b); skidding distance (m) was 200-400 (a), average 110 (b). Performance was superior in (b), even in the optimal log volume range of (a), especially at skidding distances less than 200 m. Costs in (a) were 45 DM/0.18 cubic m, in (b) 30DM/0.25 cubic m. Work performance standards and wage calculation factors are given. In both methods, net profit (average 20 DM/cubic 3) was greater and damage to main crop (less than 5%) was lower than for preparation of long industrial wood using the conventional HET/EST wage rate systems. (Refs. 2).

  16. Program overview

    International Nuclear Information System (INIS)

    Anon.

    1977-01-01

    The program overview describes the following resources and facilities; laser facilities, main laser room, target room, energy storage, laboratory area, building support systems, general plant project, and the new trailer complex

  17. 18 CFR 367.3920 - Account 392, Transportation equipment.

    Science.gov (United States)

    2010-04-01

    ...) Electrical vehicles. (5) Motor trucks. (6) Motorcycles. (7) Repair cars or trucks. (8) Tractors and trailers. (9) Other transportation vehicles. .... (a) This account must include the cost of transportation vehicles used for service company purposes...

  18. 77 FR 38381 - Qualification of Drivers; Exemption Applications; Vision

    Science.gov (United States)

    2012-06-27

    ... weeks, accumulating 7,500 miles, and tractor-trailer combinations for 5 years, accumulating 323,000... moving violations in a CMV. Jeffrey Macysyn Mr. Macysyn, 35, has complete loss of vision in his right eye...

  19. DEMONSTRATION BULLETIN: COLLOID POLISHING FILTER METHOD - FILTER FLOW TECHNOLOGY, INC.

    Science.gov (United States)

    The Filter Flow Technology, Inc. (FFT) Colloid Polishing Filter Method (CPFM) was tested as a transportable, trailer mounted, system that uses sorption and chemical complexing phenomena to remove heavy metals and nontritium radionuclides from water. Contaminated waters can be pro...

  20. 9 CFR 88.1 - Definitions.

    Science.gov (United States)

    2010-01-01

    ... profit via conveyance on any highway or public road. Conveyance. Trucks, tractors, trailers, or... incidental to his or her principal activity of production agriculture (production of food or fiber). Owner...

  1. 75 FR 22317 - Federal Motor Vehicle Safety Standards; Small Business Impacts of Motor Vehicle Safety

    Science.gov (United States)

    2010-04-28

    ... 1300 [Docket No. NHTSA-2010-0054] Federal Motor Vehicle Safety Standards; Small Business Impacts of Motor Vehicle Safety AGENCY: National Highway Traffic Safety Administration (NHTSA), Department of..., multipurpose passenger vehicles, trucks, buses, trailers, incomplete vehicles, motorcycles, and motor vehicle...

  2. Final report : mobile surveillance and wireless communication systems field operational test. Volume 1, Executive summary

    Science.gov (United States)

    1999-03-01

    This study focused on assessing the application of traffic monitoring and management systems which use transportable surveillance and ramp meter trailers, video image processors, and wireless communications. The mobile surveillance and wireless commu...

  3. Railroad Terminals and Stations - INTERMODAL_TERMINAL_NTAD_IN: Intermodal Terminal Facilities in Indiana (Bureau of Transportation Statistics, 1:100,000 Point Shapefile)

    Data.gov (United States)

    NSGIC State | GIS Inventory — BTS metadata states – “The Intermodal Terminal Facilities data set contains geographic data for trailer-on-flatcar (TOFC) and container-on-flatcar (COFC) highway...

  4. Longer combination vehicles : an estimation of their benefits and public perception of their use.

    Science.gov (United States)

    2012-03-01

    Longer Combination Vehicles (LCVs) are able to carry more freight than conventional single trailer trucks. As a result, these trucks can increase : efficiencies and benefits for freight movements as less fuel and less labor is used per ton of cargo. ...

  5. Fire science at LLNL: A review

    Energy Technology Data Exchange (ETDEWEB)

    Hasegawa, H.K. (ed.)

    1990-03-01

    This fire sciences report from LLNL includes topics on: fire spread in trailer complexes, properties of welding blankets, validation of sprinkler systems, fire and smoke detectors, fire modeling, and other fire engineering and safety issues. (JEF)

  6. 78 FR 11728 - Pilot Project on NAFTA Trucking Provisions

    Science.gov (United States)

    2013-02-19

    ... that listed the bumper; engine; cabin floor; fuel tank; cab; tires; drive shaft; muffler; chassis; rear door; air tanks; trailer; 5th wheel; and seal/tiedowns, but did not list service brakes, including the...

  7. 78 FR 3077 - Qualification of Drivers; Exemption Applications; Epilepsy and Seizure Disorders

    Science.gov (United States)

    2013-01-15

    ... consciousness that resulted from a known medical condition (e.g., drug reaction, high temperature, acute... truck driving school and drive tractor trailer with his wife, as she is a long haul driver. Victor...

  8. 15 CFR 740.14 - Baggage (BAG).

    Science.gov (United States)

    2010-01-01

    ... of personal adornment, toilet articles, medicinal supplies, food, souvenirs, games, and similar..., trucks, trailers, motorcycles, bicycles, tricycles, perambulators, and their containers. (4) Tools of... business activities that involve the transmission and use of the technology authorized under this license...

  9. 49 CFR 393.118 - What are the rules for securing dressed lumber or similar building products?

    Science.gov (United States)

    2010-10-01

    ... plywood, gypsum board or other materials of similar shape. Lumber or building products which are not... the middle tier that must be secured may not exceed 6 feet about the deck of the trailer; or (ii...

  10. 78 FR 28287 - Volkswagen Group of America, Incorporated, Grant of Petition for Decision of Inconsequential...

    Science.gov (United States)

    2013-05-14

    ... Standard (FMVSS) No. 110, Tire selection and rims and motor home/recreation vehicle trailer load carrying... Federal Docket Management System (FDMS) Web site at: http://www.regulations.gov/ . Then follow the online...

  11. 78 FR 38443 - Chrysler Group, LLC, Grant of Petition for Decision of Inconsequential Noncompliance

    Science.gov (United States)

    2013-06-26

    ... (FMVSS) No. 110, Tire selection and rims and motor home/recreation vehicle trailer load carrying capacity... all supporting documents log onto the Federal Docket Management System (FDMS) Web site at: http://www...

  12. 78 FR 46613 - Deluxe Laboratories, Inc., a Division of Deluxe Entertainment Services Group, Inc., Hollywood...

    Science.gov (United States)

    2013-08-01

    ... separations are attributable to decreased demand for movies and trailers that are printed on 35mm film. With... the eligibility requirements of the Trade Act of 1974, as amended. Conclusion After careful review of...

  13. 40 CFR Appendix II to Subpart S of... - As-Received Testing Vehicle Rejection Criteria

    Science.gov (United States)

    2010-07-01

    ... (CONTINUED) General Compliance Provisions for Control of Air Pollution From New and In-Use Light-Duty... vehicle has been used for severe duty (trailer towing for passenger cars, snow plowing, racing) 4. The...

  14. A Framework for Evidence-Based Licensure of Adaptive Autonomous Systems: Technical Areas

    Science.gov (United States)

    2016-03-01

    autonomous tractor-trailer, the natural next evolution of the self - driving cars under development today. The tractor-trailer must be able to drive safely...letting other teens drive the vehicle , etc.) In this example, gradual permission for additional licensure and extended autonomous driving privileges under...to achieve a quasi-structured goal such as landing an airplane or driving a vehicle . This kind of autonomous system begins with core

  15. 1998 Army Modernization Plan

    Science.gov (United States)

    1998-01-01

    Biological (CB) Protective Duty Uniform (STO) • Biometrics (SRO) • Nanoscience (SRO) • Millimeter Wave Material and Dissemination Technology... Biometrics and Nanoscience SROs will enable the development of advanced NBC detection and characterization systems, including the exploitation of biologically...Requirements Trailers • Procure HEMAT Trailers Figure K-23 K-19 //;<?. U.S. Army 1997Modernization Plan This final fleet assessment, made against the

  16. Conceptual design for PSP mounting bracket

    Energy Technology Data Exchange (ETDEWEB)

    Ransom, G.; Stein, R. [Martin Marietta Energy Systems, Inc., Piketon, OH (United States)

    1991-12-31

    Protective structural packages (PSP`s or overpacks) used to ship 2 1/2-ton UF{sub 6} product cylinders are bolted to truck trailers. All bolts penetrate two longitudinal rows of wooden planks. Removal and replacement is required at various intervals for maintenance and routine testing. A conceptual design is presented for mounting brackets which would securely attach PSP`s to trailer frames, reduce removal and replacement time, and minimize risk of personnel injury.

  17. Photovoltaic Power System and Power Distribution Demonstration for the Desert RATS Program

    Science.gov (United States)

    Colozza, Anthony; Jakupca, Ian; Mintz, Toby; Herlacher, Mike; Hussey, Sam

    2012-01-01

    A stand alone, mobile photovoltaic power system along with a cable deployment system was designed and constructed to take part in the Desert Research And Technology Studies (RATS) lunar surface human interaction evaluation program at Cinder Lake, Arizona. The power system consisted of a photovoltaic array/battery system. It is capable of providing 1 kW of electrical power. The system outputs were 48 V DC, 110 V AC, and 220 V AC. A cable reel with 200 m of power cable was used to provide power from the trailer to a remote location. The cable reel was installed on a small trailer. The reel was powered to provide low to no tension deployment of the cable. The cable was connected to the 220 V AC output of the power system trailer. The power was then converted back to 110 V AC on the cable deployment trailer for use at the remote site. The Scout lunar rover demonstration vehicle was used to tow the cable trailer and deploy the power cable. This deployment was performed under a number of operational scenarios, manned operation, remote operation and tele-robotically. Once deployed, the cable was used to provide power, from the power system trailer, to run various operational tasks at the remote location.

  18. Analisis Stabilitas Arah Mobil Toyota Agya G dengan Variasi Jumlah Penumpang, Kecepatan Belok, Sudut Belok dan Kemiringan Melintang Jalan

    Directory of Open Access Journals (Sweden)

    Faisal Rahman

    2017-03-01

    Full Text Available Mobil jenis Low Cost Green Car (LCGC semakin banyak digunakan masyarakat karena harganya yang murah dan ramah lingkungan. Meski termasuk kendaraan dengan biaya produksi yang rendah, adanya analisis perilaku arah kendaraan tetap diperlukan untuk menjamin kenyamaan dan keamanan pengemudi. Pada penelitian ini, analisa slip, skid dan guling dilakukan untuk mengetahui stabilitas kendaraan jenis LCGC, yaitu Toyota Agya. Pengaruh jumlah penumpang, kecepatan, sudut belok dan kemiringan melintang jalan terhadap slip, skid dan guling juga diperhitungkan. Sebagai komparatif studi, uji jalan dilakukan untuk mendapatkan koefisien understeer dan mengetahui kecepatan kendaraan dalam kondisi skid. Hasil penelitian menunjukkan bahwa mobil Toyota Agya mengalami kondisi stabilitas paling baik ketika dinaiki oleh 2 orang penumpang dengan sudut kemiringan melintang jalan 5.7°. Sedangkan kecepatan maksimum kendaraan tidak terguling terjadi pada kecepatan 94,987 km/jam untuk sudut belok 5° dan pada kecepatan 46,585 km/jam sudut belok 25°.

  19. The SNS Resonance Control Cooling System Control Valve Upgrade Performance

    International Nuclear Information System (INIS)

    Williams, Derrick C.; Schubert, James Phillip; Tang, Johnny Y.

    2008-01-01

    The normal-conducting linac of the Spallation Neutron Source (SNS) uses 10 separate Resonance Control Cooling System (RCCS) water skids to control the resonance of 6 Drift Tube Linac (DTL) and 4 Coupled Cavity Linac (CCL) accelerating structures. The RCCS water skids use 2 control valves; one to regulate the chilled water flow and the other to bypass water to a chilled water heat exchanger. These valves have hydraulic actuators that provide position and feedback to the control system. Frequency oscillations occur using these hydraulic actuators due to their coarse movement and control of the valves. New pneumatic actuator and control positioners have been installed on the DTL3 RCCS water skid to give finer control and regulation of DTL3 cavity temperature. This paper shows a comparison of resonance control performance for the two valve configurations.

  20. Modeling of traction-coupling properties of wheel propulsor

    Science.gov (United States)

    Sakhapov, R. L.; Nikolaeva, R. V.; Gatiyatullin, M. H.; Makhmutov, M. M.

    2017-12-01

    In conditions of operation of aggregates on soils with low bearing capacity, the main performance indicators of their operation are determined by the properties of retaining the functional qualities of the propulsor. Therefore, the parameters of the anti-skid device can not be calculated by only one criterion. The equipment of propellers with anti-skid devices, which allow to reduce the compaction effect of the propulsion device on the soil, seems to be a rational solution to the problem of increasing traction and coupling properties of the driving wheels. The mathematical model is based on the study of the interaction of the driving wheel with anti-skid devices and a deformable bearing surface, which takes into account the wheel diameter, skid coefficient, the parameters of the anti-skid device, the physical and mechanical properties of the soil. As a basic mathematical model that determines the dependence of the coupling properties on the wheel parameters, the model obtained as a result of integration and reflecting the process of soil deformation from the shear stress is adopted. The total value of the resistance forces will determine the force of the hitch pressure on the horizontal soil layers, and the value of its deformation is the degree of wheel slippage. When the anti-skid devices interact with the soil, the traction capacity of the wheel is composed of shear forces, soil shear and soil deformation forces with detachable hooks. As a result of the interaction of the hook with the soil, the latter presses against the walls of the hook with the force equal to the sum of the hook load and the resistance to movement. During operation, the linear dimensions of the hook will decrease, which is not taken into account by the safety factor. Abrasive wear of the thickness of the hook is approximately proportional to the work of friction caused by the movement of the hook when inserted into the soil and slipping the wheel.

  1. Project W-320, 241-C-106 sluicing civil/structural calculations, Volume 7

    International Nuclear Information System (INIS)

    Bailey, J.W.

    1998-01-01

    The structural skid supporting the Process Building and equipment is designed based on the criteria, codes and standards, referenced in the calculation. The final members and the associated elements satisfy the design requirements of the structure. Revision 1 incorporates vendor data for the weight of the individual equipment components. The updated information does not affect the original conclusion of the calculation, since the overall effect is a reduction in the total weight of the equipment and a nominal relocation of the center of gravity for the skid assembly

  2. Applying modular concepts to process and authorization basis issues for plutonium residue stabilization

    International Nuclear Information System (INIS)

    Hildner, R.A.; Zygmunt, S.J.

    1996-01-01

    A recent study completed for the Rocky Flats Environmental Technology Site proved that it is feasible to use modular, skid-mounted processes for disposition of Category 1 quantities of nuclear materials. This would allow personnel to assemble, test, and authorize the processes outside of the nuclear material management area. Besides having cost and schedule advantages, this technology reduces the uncertainty and risk in applications involving disposition of materials and facilities. This paper explains the previous research into modular skid-mounted processes and suggests various future applications of the technology

  3. Project W-320, 241-C-106 sluicing civil/structural calculations, Volume 7

    Energy Technology Data Exchange (ETDEWEB)

    Bailey, J.W.

    1998-07-24

    The structural skid supporting the Process Building and equipment is designed based on the criteria, codes and standards, referenced in the calculation. The final members and the associated elements satisfy the design requirements of the structure. Revision 1 incorporates vendor data for the weight of the individual equipment components. The updated information does not affect the original conclusion of the calculation, since the overall effect is a reduction in the total weight of the equipment and a nominal relocation of the center of gravity for the skid assembly.

  4. Observations of market pigs following transport to a packing plant.

    Science.gov (United States)

    Kephart, K B; Harper, M T; Raines, C R

    2010-06-01

    A field study was conducted to record observations of 41,744 market-weight pigs upon arrival at a commercial abattoir to evaluate the relationships between various independent factors and open-mouth breathing, skin discoloration, lameness, unloading time, and mortality during transport. Observations were recorded from 242 trailer loads on 46 separate days over a period of 14 mo. Travel time (or=2.5 h), wait time before unloading (or=20 min), loading pressure (space or >or=260 kg of BW/m(2) trailer floor space), ambient temperature while unloading (or=17 degrees C), and trailer type [potbelly (PB); straight-deck with conventional unloading doors (SDC); or straight-deck with wide unloading doors (SDW)] were recorded for each load. Open-mouth breathing was more prevalent in pigs when transported on PB trailers compared with that of SDC or SDW trailers (P or=17 degrees C, P or=17 degrees C. Lameness was more prevalent (P travel times at greater loading pressure compared with shorter travel times at decreased loading pressure. Unloading time for PB trailers was longer (P 0.10) relationships between mortality and any independent variable tested. Wait time before unloading was not associated (P > 0.10) with any of the dependent variables included in the statistical model. In conclusion, warmer ambient temperatures (>or=17 degrees C) and the use of PB trailers are associated with an increased incidence of open-mouth breathing and skin discoloration, and longer unloading times after the transport of market pigs.

  5. Removal of Inorganic, Microbial, and Particulate Contaminants from a Fresh Surface Water: Village Marine Tec. Expeditionary Unit Water Purifier, Generation 1

    Science.gov (United States)

    The Village Marine Tec. Generation 1 Expeditionary Unit Water Purifier (EUWP) is a mobile skid-mounted system employing ultrafiltration (UF) and reverse osmosis (RO) to produce drinking water from a variety of different water quality sources. The UF components were evaluated to t...

  6. 77 FR 28243 - Amendment of Class D Airspace; Cocoa Beach, FL

    Science.gov (United States)

    2012-05-14

    ...-0099; Airspace Docket No. 12-ASO-11] Amendment of Class D Airspace; Cocoa Beach, FL AGENCY: Federal... Federal Register on April 11, 2012 that amends Class D airspace at Cocoa Beach, FL. DATES: Effective 0901...), amends Class D airspace at Cape Canaveral Skid Strip, Cocoa Beach, FL. A typographical error was made in...

  7. Tightening the Purchasing Process: Superintendents Get More Involved in Buying Policies

    Science.gov (United States)

    Rivero, Victor

    2009-01-01

    Over the last 18 months, school district purchasing offices across the country have been tightening the reins like never before while more top-level administrators get involved in the budget process. "When the economy really hit the skids, states got hit hard, so a lot of school districts were forced to make severe budget cuts," says John Musso,…

  8. Estimating Soil Displacement from Timber Extraction Trails in Steep Terrain: Application of an Unmanned Aircraft for 3D Modelling

    Directory of Open Access Journals (Sweden)

    Marek Pierzchała

    2014-06-01

    Full Text Available Skid trails constructed for timber extraction in steep terrain constitute a serious environmental concern if not well planned, executed and ameliorated. Carrying out post-harvest surveys in monitoring constructed trails in such terrain is an onerous task for forest administrators, as hundreds of meters need to be surveyed per site, and the quantification of parameters and volumes is largely based on assumptions of trail symmetry and terrain uniformity. In this study, aerial imagery captured from a multi-rotor Unmanned Aerial Vehicle was used in generating a detailed post-harvest terrain model which included all skid trails. This was then compared with an Airborne Laser Scanning derived pre-harvest terrain model and the dimensions, slopes and cut-and-fill volumes associated with the skid trails were determined. The overall skid trail length was 954 m, or 381 m·ha−1 with segments varying from 40–60 m, inclinations from 3.9% to 9.6%, and cut volumes, from 1.7 to 3.7 m3 per running meter. The methods used in this work can be used in rapidly assessing the extent of disturbance and erosion risk on a wide range of sites. The multi-rotor Unmanned Aerial Vehicle (UAV was found to be highly suited to the task, given the relatively small size of harvested stands, their shape and their location in the mountainous terrain.

  9. Technical assessment of forest road network using Backmund and surface distribution algorithm in a hardwood forest of Hyrcanian zone

    Energy Technology Data Exchange (ETDEWEB)

    Parsakhoo, P.

    2016-07-01

    Aim of study: Corrected Backmund and Surface Distribution Algorithms (SDA) for analysis of forest road network are introduced and presented in this study. Research was carried out to compare road network performance between two districts in a hardwood forest. Area of study: Shast Kalateh forests, Iran. Materials and methods: In uncorrected Backmund algorithm, skidding distance was determined by calculating road density and spacing and then it was designed as Potential Area for Skidding Operations (PASO) in ArcGIS software. To correct this procedure, the skidding constraint areas were taken using GPS and then removed from PASO. In SDA, shortest perpendicular distance from geometrical center of timber compartments to road was measured at both districts. Main results: In corrected Backmund, forest openness in district I and II were 70.3% and 69.5%, respectively. Therefore, there was little difference in forest openness in the districts based on the uncorrected Backmund. In SDA, the mean distance from geometrical center of timber compartments to the roads of districts I and II were 199.45 and 149.31 meters, respectively. Forest road network distribution in district II was better than that of district I relating to SDA. Research highlights: It was concluded that uncorrected Backmund was not precise enough to assess forest road network, while corrected Backmund could exhibit a real PASO by removing skidding constraints. According to presented algorithms, forest road network performance in district II was better than district I. (Author)

  10. 3-D Transient Heat Transfer Analysis of Slab Heating Characteristics in a Reheating Furnace in Hot Strip Mills

    Science.gov (United States)

    Jang, J. Y.; Lee, Y. W.; Lin, C. N.; Wang, C. H.

    2016-05-01

    A three-dimensional mathematical transient heat transfer model for the prediction of temperature distribution within the slab has been developed by considering the thermal radiation in the walking-beam-type reheating furnace chamber. The steel slabs are heated up through the non-firing, preheating, 1st-heating, 2nd-heating, and soaking zones in the furnace, respectively, where the furnace wall temperature is function of time. Comparison with the in-situ experimental data from Steel Company in Taiwan shows that the present heat transfer model works well for the prediction of thermal behavior of the slab in the reheating furnace. The effects of different skid button height (H=60mm, 90mm, and 120mm) and different gap distance between two slabs (S=50mm, 75mm, and 100mm) on the slab skid mark formation and temperature profiles are investigated. It is found that the skid mark severity decreases with an increase in the skid button height. The effect of gap distance is important only for the slab edge planes, while it is insignificant for the slab central planes.

  11. Understanding the Influence of oligomeric resins on traction and rolling resistance of silica tire treads

    NARCIS (Netherlands)

    Vleugels, N.; Pille-Wolf, W.; Dierkes, Wilma K.; Noordermeer, Jacobus W.M.

    2015-01-01

    This study concerns the silica reinforcement of styrene–butadiene rubber compounds for passenger car tire treads, with the objective of gaining greater insight into the beneficial effects of oligomeric resins. The major tire performance factors predicted are rolling resistance and (wet) skid

  12. Effect of Weight Transfer on a Vehicle's Stopping Distance.

    Science.gov (United States)

    Whitmire, Daniel P.; Alleman, Timothy J.

    1979-01-01

    An analysis of the minimum stopping distance problem is presented taking into account the effect of weight transfer on nonskidding vehicles and front- or rear-wheels-skidding vehicles. Expressions for the minimum stopping distances are given in terms of vehicle geometry and the coefficients of friction. (Author/BB)

  13. A unique concept for automatically controlling the braking action of wheeled vehicles during minimum distance stops

    Science.gov (United States)

    Barthlome, D. E.

    1975-01-01

    Test results of a unique automatic brake control system are outlined and a comparison is made of its mode of operation to that of an existing skid control system. The purpose of the test system is to provide automatic control of braking action such that hydraulic brake pressure is maintained at a near constant, optimum value during minimum distance stops.

  14. 49 CFR Appendix to Subpart G of... - Required Knowledge and Skills-Sample Guidelines

    Science.gov (United States)

    2010-10-01

    ... contained in parts 391 and 395 of this title. (b) Commercial motor vehicle safety control systems. Proper use of the motor vehicle's safety system, including lights, horns, side and rear-view mirrors, proper... situation, e.g., skids and loss of brakes. (c) Safe vehicle control—(1) Control systems. The purpose and...

  15. TITAN Legal Weight Truck cask preliminary design report

    International Nuclear Information System (INIS)

    1990-04-01

    The Preliminary Design of the TITAN Legal Weight Truck (LWT) Cask System and Ancillary Equipment is presented in this document. The scope of the document includes the LWT cask with fuel baskets; impact limiters, and lifting and tiedown features; the cask support system for transportation; intermodal transfer skid; personnel barrier; and cask lifting yoke assembly. 75 figs., 48 tabs

  16. Forest access roads: design, maintenance, and soil loss

    Science.gov (United States)

    Lloyd W. Swift

    1988-01-01

    The Regional Guide for,the South (United States Department of Agriculture 1984b) recognizes that roads and skid trails are the major sources of sediment from forestry-related activities. The overall environmental impact statement for Region 8 (United States Department of Agriculture 1984a) estimates an existing national forest road network of 56,300 km (3 1,000 miles)...

  17. Study of Hydroplaning Risk on Rolling and Sliding Passenger Car

    NARCIS (Netherlands)

    Kumar, S.S.; Anupam, K.; Scarpas, A.; Kasbergen, C.

    2012-01-01

    Hydroplaning speed is known to vary over a range of tire slipping conditions from free rolling to completely skidding. An attempt has been made to simulate two extreme conditions of hydroplaning i.e. when the tire is completely rolling (0% slip) and a completely locked tire (100% slip). ASTM

  18. Soil bulk density changes caused by mechanized harvesting: A case study in central Appalachia

    Science.gov (United States)

    Jingxin Wang; Chris B. LeDoux; Pam Edwards; Mark Jones; Mark Jones

    2005-01-01

    A mechanized harvesting system consisting of a feller-buncher and a grapple skidder was examined to quantify soil bulk density changes in a central Appalachian hardwood forest site. Soil bulk density was measured using a nuclear gauge pre-harvest and post-harvest systematically across the harvest unit and on transects across skid trails. Bulk density also was measured...

  19. Effectiveness of best management practices for sediment reduction at operation forest stream crossings

    Science.gov (United States)

    Laura R. Wear; Michael W. Aust; M. Chad Bolding; Brian D. Strahm; C. Andrew Dolloff

    2013-01-01

    Temporary skid trail stream crossings have repeatedly been identified as having considerable potential to introduce sediment to streams. Forestry Best Management Practices (BMPs) have proven to be effective for controlling erosion and subsequent sedimentation, yet few studies have quantified sedimentation associated with various levels of BMPs for skidder stream...

  20. Pyrolysis of blended animal manures to produce combustible gas and value-added charcoal adsorbent

    Science.gov (United States)

    Blended swine solids, chicken litter, and rye grass were pyrolyzed using a skid-mounted sytem. Produced gas composition was analyzed for major hydrocarbons and S-containing compounds. Charcoal was analyzed for its surface functional groups, contact angles, HHV, and total element contents. Some of th...

  1. Project W-320, 241-C-106 sluicing HVAC calculations, Volume 4

    Energy Technology Data Exchange (ETDEWEB)

    Bailey, J.W.

    1998-07-30

    This supporting document has been prepared to make the FDNW calculations for Project W-320, readily retrievable. The report contains the following design calculations: Cooling load in pump pit 241-AY-102; Pressure relief seal loop design; Process building piping stress analysis; Exhaust skid maximum allowable leakage criteria; and Recirculation heat, N509 duct requirements.

  2. Logging costs and production rates for the group selection cutting method

    Science.gov (United States)

    Philip M. McDonald

    1965-01-01

    Young-growth, mixed-conifer stands were logged by a group-selection method designed to create openings 30, 60, and 90 feet in diameter. Total costs for felling, limbing, bucking, and skidding on these openings ranged from $7.04 to $7.99 per thousand board feet. Cost differences between openings were not statistically significant. Logging costs for group selection...

  3. Harvesting costs and production rates for seed-tree removal in young-growth, mixed-conifer stands

    Science.gov (United States)

    Philip M. McDonald

    1969-01-01

    Ponderosa pine seed trees left from a previous cutting on the Challenge Experimental Forest, California, were removed in October 1963. Logging costs and production rates were compared with those for a seed-tree cutting on an area nearby. Production rates for seed-tree removal greatly exceeded those for the operation as a whole. Skidding production increased by 38...

  4. 29 CFR 1926.153 - Liquefied petroleum gas (LP-Gas).

    Science.gov (United States)

    2010-07-01

    ..., Containers—All vessels, such as tanks, cylinders, or drums, used for transportation or storing liquefied... outlet piping of settling shall be guarded against by a flexible connection or special fitting. (h... known in the industry as “skid tanks”) shall be designed, installed, and used in accordance with these...

  5. Ponderosa pine growth response to soil strength in the volcanic ash soils of central Oregon.

    Science.gov (United States)

    R.T. Parker; D.A. Maguire; D.D. Marshall; P. Cochran

    2007-01-01

    Mechanical harvesting and associated logging activities have the capacity to compact soil across large portions of harvest units. Two thinning treatments (felled only versus felled and skidded) in 70- to 80-year-old ponderosa pine stands were replicated at three sites with volcanic soils in central Oregon. Growth in diameter, height, and volume of residual trees were...

  6. The use of multiplicative models for analysis of road safety data.

    NARCIS (Netherlands)

    Oppe, S.

    1978-01-01

    Accident ratios are analysed with regard to the variables road surface skidding resistance and hourly traffic volume. In a first analysis the additive conjoint measurement model (acm) is used to investigate to what extent the accident ratios can be described as a result of independent contributions

  7. Cradle-to-gate life cycle impacts of redwood forest resource harvesting in northern California

    Science.gov (United States)

    Han-Sup Han; Elaine Oneil; Richard D. Bergman; Ivan L. Eastin; Leonard R. Johnson

    2015-01-01

    The first life cycle impact assessment for redwood (Sequoia sempervirens) forest management activities (i.e. a cradle-to-sawmill gate input) including the growing, harvesting, and hauling of redwood sawlogs to a sawmill was completed. In the stump-to-truck timber harvesting analysis, primary transport activities such as skidding and yarding consumed...

  8. Setting analyst: A practical harvest planning technique

    Science.gov (United States)

    Olivier R.M. Halleux; W. Dale Greene

    2001-01-01

    Setting Analyst is an ArcView extension that facilitates practical harvest planning for ground-based systems. By modeling the travel patterns of ground-based machines, it compares different harvesting settings based on projected average skidding distance, logging costs, and site disturbance levels. Setting Analyst uses information commonly available to consulting...

  9. Channel incision and suspended sediment delivery at Caspar Creek, Mendocino County, California

    Science.gov (United States)

    Nicholas J. Dewey; Thomas E. Lisle; Leslie M. Reid

    2003-01-01

    Tributary and headwater valleys in the Caspar Creek watershed,in coastal Mendocino County, California,show signs of incision along much of their lengths.An episode of incision followed initial-entry logging which took place between 1860 and 1906. Another episode of incision cut into skid-trails created for second-entry logging in the 1970's.

  10. Performance of thin bonded epoxy overlays on asphalt and concrete bridge deck surfaces.

    Science.gov (United States)

    2014-06-01

    This study is the evaluation of two thin bonded epoxy overlays: SafeLane (marketed by Cargill), and Flexogrid : (developed by PolyCarb). SafeLane is advertised as an anti-skid/anti-icing overlay that stores deicing chemicals for : release during wint...

  11. 46 CFR 160.042-3 - Construction.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 6 2010-10-01 2010-10-01 false Construction. 160.042-3 Section 160.042-3 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL LIFESAVING EQUIPMENT Skids, Liferaft, for Merchant Vessels § 160.042-3 Construction...

  12. Reactive processing of silica-reinforced tire rubber : new insight into the time- and temperature-dependence of silica rubber interaction

    NARCIS (Netherlands)

    Mihara, S.

    2009-01-01

    In recent years, silica has become one of the most important fillers used in tire tread compounds due to its contribution to a better environment. Silica is capable of not only reducing the rolling resistance but also improving the wet skid resistance of tires, compared to carbon black as a filler.

  13. Climbers and logging in the Forêt Classée du Haut Sassandra, Côte d'Ivoire.

    NARCIS (Netherlands)

    Kouamé, F.N.; Bongers, F.J.J.M.; Poorter, L.; Traoré, D.

    2004-01-01

    In this study we compare climber abundance and size in centres of post-logging skid tracks and log loading areas to their adjacent relatively undisturbed border zones, in a selectively logged forest in the west-centre of Me d'Ivoire. We also evaluate the effect of time after logging (age) on these

  14. Logging damage using an individual tree selection practice in Appalachian hardwood stands

    Science.gov (United States)

    Neil I. Lamson; H. Clay Smith; Gary W. Miller

    1985-01-01

    Four West Virginia hardwood stands, managed using individual-tree selection for the past 30 years, were examined after the third and, in one instance, the fourth periodic harvest to determine the severity of logging damage. On existing skid roads, trees were removed with a rubber-tired skidder or a crawler tractor with a rubber-tired arch. Logging damage reduced...

  15. Logging damage to residual trees following commercial harvesting to different overstory retention levels in a mature hardwood stand in Tennessee

    Science.gov (United States)

    Wayne K. Clatterbuck

    2006-01-01

    Partial cutting in mature hardwood stands often causes physical damage to residual stems through felling and skidding resulting in a decline in bole quality and subsequent loss of tree value. This study assessed the logging damage to residual trees following commercial harvesting in a fully stocked, mature oak-hickory stand cut to three overstory basal area retention...

  16. SCaN Transportable Communication Platform (STCP)

    Science.gov (United States)

    Haddad, George; Tanger, Thomas; Pleva, David; Schoenholz, Bryan; Nam, Connor

    2017-01-01

    NASA Glenn Research Center required a satellite communication trailer that served dual purposes; 24/7 Emergency Communication Services (ECS) in the event of a natural or manmade disaster that disrupted conventional communications, and a Ka Band NASA TDRS capability providing a research capability for over the air evaluations/characterizations. The trailer was to be field deployable, environmentally controlled and self-contained providing local area networks (LANs) and Wide Area Networks (WAN's) with user access both wired (Ethernet) and wireless (802.11) supporting VoIP, Internet Web access and Email. The TDRSS terminal included a 200W TWT amplifier mounted on the feed boom, individual up and down converters, and custom integrated waveguide and a supporting feed system. Other features such as a mast, generator, electrical, lighting, surveillance, and storage capabilities were also required. The Trailer was developed and demonstrated these original requested capabilities. New Requirements are defined and the trailer is now being evolved and upgraded to be a backup for the Near- Earth Network (NEN) Stations at KSC that will support the launch phase of EM-1. This paper presents the current and future capabilities of the trailer and additional options that will make it a valuable deployable asset to support remote operations from any launch from location.

  17. Analisa Perilaku Arah Kendaraan dengan Variasi Posisi Titik Berat, Sudut Belok dan Kecepatan Pada Mobil Formula Sapuangin Speed 3

    Directory of Open Access Journals (Sweden)

    Tjahyadi Rizky Pradana

    2017-01-01

    Full Text Available Pada tahun 2015, ITS Team Sapuangin untuk ketiga kalinya mengikuti lomba Student Formula Japan yang diadakan oleh Japan Society of Automotive Enginee (JSAE. Target Team Sapuangin yaitu menjuarai skid-pad. Namun kenyataannya ITS Team Sapuangin hanya mampu menyelesaikan skid-pad dengan waktu 5,73 detik. Pada perlombaan ini, TU Graz adalah tim yang berhasil menjuarai perlombaan skid-pad ini dengan waktu 5,03 detik. Kendala yang dialami Sapuangin Speed 3 adalah sulit dikendalikan dan mengalami understeer maupun oversteer. Permasalahan ini akan dicoba dianalisa penyebabnya agar pada tahun berikutnya mobil Sapuangin Speed 4 bisa tampil dengan baik. Dalam tugas akhir ini, dilakukan analisa tentang perilaku arah kendaraan pada mobil formula Sapuangin Speed 3 dengan variasi posisi titik berat dan kecepatan di lintasan skid pad. Pada awalnya, menentukan posisi titik berat untuk dianalisa, kemudian menghitung gaya-gaya yang terjadi pada ban yang mampu mempengaruhi perilaku arah pada kendaraan, lalu divariasikan dengan kecepatan tertentu hingga mampu memperoleh waktu yang optimal. Sedangkan pada steering system yaitu meneliti sudut belok agar mencapai kondisi ideal (Ackermann. Dari penelitian yang telah dilakukan, diperoleh posisi titik berat yang optimal yaitu tepat ditengah (50% : 50% dengan Kus 0,0678 pada radius 8,982 m. Kemudian dari analisa skid kendaraan mengalami oversteer pada yaw rate sebesar 2,2677. Dari analisa steering Pengaturan steering pada Sapuangin Speed 3, settingan yang cocok yaitu menggunakan settingan bawah. Karena mobil Sapuangin Speed 3 cenderung mengalami understeer, namun mobil Sapuangin Speed 3 mengalami oversteer akibat yaw rate settingan atas merupakan settingan terbaik karena untuk mengatasi oversteer yang berlebih.

  18. An electromyographic and kinematic comparison between an extendable conveyor system and an articulating belt conveyor used for truck loading and unloading tasks.

    Science.gov (United States)

    Lavender, Steven A; Nagavarapu, Shasank; Allread, W Gary

    2017-01-01

    Many retail distribution centers (DCs) manually load and unload boxes into or out of trailers and shipping containers. This study investigated whether an articulating belt conveyor with a height adjustable platform, positioned at the end of an extendable conveyor, significantly reduces shoulder and back muscle loading and the spine kinematics associated with these tasks. Electromyographic and kinematic data were collected from eight volunteer employees as trailers at a shoe DC were unloaded and from nine volunteer employees as trailers at an apparel DC were loaded. Participants in this repeated measures study handled boxes with a conventional powered extendable conveyor system and with the articulating belt conveyor positioned at the end of the extendable conveyor. Bilaterally the normalized activation levels of the erector spinae and anterior deltoid muscles were reduced when loading and unloading boxes with the articulating belt conveyor. Spine movement speeds were also reduced with the articulating conveyor. Copyright © 2016 Elsevier Ltd. All rights reserved.

  19. Combined Aero and Underhood Thermal Analysis for Heavy Duty Trucks

    Energy Technology Data Exchange (ETDEWEB)

    Vegendla, Prasad [Argonne National Lab. (ANL), Argonne, IL (United States); Sofu, Tanju [Argonne National Lab. (ANL), Argonne, IL (United States); Saha, Rohit [Cummins Inc., Columbus, IN (United States); Madurai Kumar, Mahesh [Cummins Inc., Columbus, IN (United States); Hwang, L. K [Cummins Inc., Columbus, IN (United States)

    2017-01-31

    Aerodynamic analysis of the medium-duty delivery truck was performed to achieve vehicle design optimization. Three dimensional CFD simulations were carried out for several improved designs, with a detailed external component analysis of wheel covers, side skirts, roof fairings, and rounded trailer corners. The overall averaged aerodynamics drag reduction through the design modifications were shown up to 22.3% through aerodynamic considerations alone, which is equivalent to 11.16% fuel savings. The main identified fuel efficiencies were based on second generation devices, including wheel covers, side skirts, roof fairings, and rounded trailer corners. The important findings of this work were; (i) the optimum curvature radius of the rounded trailer edges found to be 125 mm, with an arc length of 196.3 mm, (ii) aerodynamic drag reduction increases with dropping clearance of side skirts between wheels and ground, and (iii) aerodynamic drag reduction increases with an extension of front bumper towards the ground.

  20. Investigation of Tractor Base Bleeding for Heavy Vehicle Aerodynamic Drag Reduction

    Energy Technology Data Exchange (ETDEWEB)

    Ortega, J; Salari, K; Storms, B

    2007-10-25

    One of the main contributors to the aerodynamic drag of a heavy vehicle is tractor-trailer gap drag, which arises when the vehicle operates within a crosswind. Under this operating condition, freestream flow is entrained into the tractor-trailer gap, imparting a momentum exchange to the vehicle and subsequently increasing the aerodynamic drag. While a number of add-on devices, including side extenders, splitter plates, vortex stabilizers, and gap sealers, have been previously tested to alleviate this source of drag, side extenders remain the primary add-on device of choice for reducing tractor-trailer gap drag. However, side extenders are not without maintenance and operational issues. When a heavy vehicle pivots sharply with respect to the trailer, as can occur during loading or unloading operations, the side extenders can become crushed against the trailer. Consequently, fleet operators are forced to incur additional costs to cover the repair or replacement of the damaged side extenders. This issue can be overcome by either shortening the side extenders or by devising an alternative drag reduction concept that can perform just as effectively as side extenders. To explore such a concept, we investigate tractor base bleeding as a means of reducing gap drag. Wind tunnel measurements are made on a 1:20 scale heavy vehicle model at a vehicle width-based Reynolds number of 420,000. The tractor bleeding flow, which is delivered through a porous material embedded within the tractor base, is introduced into the tractor-trailer gap at bleeding coefficients ranging from 0.0-0.018. To determine the performance of tractor base bleeding under more realistic operating conditions, computational fluid dynamics simulations are performed on a full-scale heavy vehicle within a crosswind for bleeding coefficients ranging from 0.0-0.13.

  1. Bollywood Movie Corpus for Text, Images and Videos

    OpenAIRE

    Madaan, Nishtha; Mehta, Sameep; Saxena, Mayank; Aggarwal, Aditi; Agrawaal, Taneea S; Malhotra, Vrinda

    2017-01-01

    In past few years, several data-sets have been released for text and images. We present an approach to create the data-set for use in detecting and removing gender bias from text. We also include a set of challenges we have faced while creating this corpora. In this work, we have worked with movie data from Wikipedia plots and movie trailers from YouTube. Our Bollywood Movie corpus contains 4000 movies extracted from Wikipedia and 880 trailers extracted from YouTube which were released from 1...

  2. Double-shell tank annulus pumping alternative evaluation

    International Nuclear Information System (INIS)

    RIESENWEBER, S.D.

    1999-01-01

    This engineering evaluation compares five alternative schemes for maintaining emergency annulus pumping equipment in a reliable condition. The five schemes are: (1) continue status quo; (2) periodic pump removal and run-in; (3) periodic in-place limited maintenance; (4) uninstalled ready spares; and (5) expanded mission of Single-Shell Tank Emergency Pumping Trailer. Each alternative is described, the pros and cons identified, and rough order of magnitude life-cycle costs computed. The alternatives are compared using weighted evaluation criteria. The evaluation concludes that staging adjustable length submersible pumps in the Single-Shell Tank Emergency Pumping Trailer has the best cost-benefit characteristics

  3. Power unit-cargo space link in transport

    Directory of Open Access Journals (Sweden)

    Radmilović Zoran R.

    2005-01-01

    Full Text Available This paper deals with transportation technology regarding links between power unit and cargo space. These links can be divided into two groups: rigid and flexible. Rigid link, established between power unit and cargo space, is dominant in maritime and road transport (sea ships and trucks, and occasionally in transport on inland waterways (self- propelled barges. Flexible link is used in the railroad transport (systems with trailers and semi trailers, and in inland waterway transport (push - towing and pulling systems, and combinations of the systems. The main goal of this research is determination of possible link types and organization of the means of transportation.

  4. A Combinatorial Benders’ Cuts Algorithm for the Local Container Drayage Problem

    Directory of Open Access Journals (Sweden)

    Zhaojie Xue

    2015-01-01

    Full Text Available This paper examines the local container drayage problem under a special operation mode in which tractors and trailers can be separated; that is, tractors can be assigned to a new task at another location while trailers with containers are waiting for packing or unpacking. Meanwhile, the strategy of sharing empty containers between different customers is also considered to improve the efficiency and lower the operation cost. The problem is formulated as a vehicle routing and scheduling problem with temporal constraints. We adopt combinatorial benders’ cuts algorithm to solve this problem. Numerical experiments are performed on a group of randomly generated instances to test the performance of the proposed algorithm.

  5. 22 CFR 89.1 - Prohibitions on Longshore work by U.S. nationals; listing by country.

    Science.gov (United States)

    2010-04-01

    ..., when done in relation to ship safety, ship operation, or supervisory work to ensure that stevedoring is... of ship's gear. Malaysia (a) All longshore activities. (b) Exceptions: (1) Operation of cargo related... required for safety reasons, (7) Placing of trailers and similar material in parking areas when done before...

  6. Screening of the fruit pulp extract of Momordica balsamina for anti ...

    African Journals Online (AJOL)

    AJB SERVER

    2007-01-04

    Jan 4, 2007 ... Momordica Balsamina also refers to as balsam fruit or apple belongs to the family of cucurbitacea. It is a plant commonly used by local poultry farmers in Plateau State,. Nigeria for general well being of birds (Mgbojikwe et al.,. 2002). The Balsam apple is a climber or trailer with annuals stems attaining 4-5 m ...

  7. Los Sentimientos, Luchas, y Esperanzas de Cinco Familias Mexicana: The Sentiments, Struggles, and Hopes of Five Mexican Families

    Science.gov (United States)

    Dueñas, Gilbert

    2015-01-01

    Within the everyday space of their modest trailer homes, I observed compelling environments in the households of 5 Mexican families. In their homes, there existed "los padres con sus hijos" (parents with their children) who intuitively expressed "cariño," or love, for one another, conversed in multiple languages, practiced…

  8. 75 FR 28861 - Walking-Working Surfaces and Personal Protective Equipment (Fall Protection Systems)

    Science.gov (United States)

    2010-05-24

    ... address a significant risk and to reduce this risk significantly. (See Industrial Union Dep't v. American... trucks (including tractor trailer trucks, tank trucks, and hopper trucks). For the purposes of this rule, the term ``motor vehicle'' does not include powered industrial trucks. OSHA is specifically seeking...

  9. Potential for shared log transport services

    Science.gov (United States)

    Tim McDonald; Steve Taylor; Jorge Valenzuela

    2001-01-01

    A simulation model of a log transport logistics network was developed. The model could be structured to either share truck capacity among a group of loggers, or to assign a fixed number of trucks to individual loggers. Another variation of the model allowed the use of a staging yard to set out loaded trailers and deliver them to destinations using dedicated shuttle...

  10. Leaving home and entering the housing market.

    NARCIS (Netherlands)

    Clark, W.A.V.; Mulder, C.H.

    2000-01-01

    We use a multinomial choice model of owning a home, owning a trailer, or renting to examine the housing-market entry of young adults in the USA after they have left the parental home. We also model the choice between renting independently and sharing with roommates. We show that the likelihood of

  11. 77 FR 28372 - South Carolina Public Service Authority; Notice of Application for Amendment of License and...

    Science.gov (United States)

    2012-05-14

    ... documents may be filed electronically via the Internet. See, 18 CFR 385.2001(a)(1)(iii) and the instructions... marina, fuel and sewage pump-out services, restrooms, parking, shops, restaurant, swimming pool, rental cottages, boardwalk, wooden deck, and remote parking for boat trailers. l. Locations of the Application: A...

  12. Soil decontamination at Rocky Flats

    International Nuclear Information System (INIS)

    Olsen, R.L.; Hayden, J.A.; Alford, C.E.; Kochen, R.L.; Stevens, J.R.

    1979-01-01

    A soils decontamination project was initiated, to remove actinides from soils at Rocky Flats. Wet screening, attrition scrubbing with Calgon at high pH, attrition scrubbing at low pH, and cationic flotation were investigated. Pilot plant studies were carried out. Conceptual designs have been generated for mounting the process in semi-trailers

  13. Compressed gas system operates semitrailer brakes during winching operation

    Science.gov (United States)

    Tupper, W. E.

    1964-01-01

    To move van-type semi-trailers into and out of confined spaces, an auxiliary braking system is mounted on a standard dolly converter. Compressed nitrogen is used to actuate the brakes which are used in conjunction with a power winch.

  14. 7 CFR 1755.509 - Mobile homes.

    Science.gov (United States)

    2010-01-01

    ... homes, motor homes, truck campers, travel trailers, and all forms of recreational vehicles. Customer... ® for a mobile home depends on how the electric power is installed at the mobile home and it can involve considerable judgment on the part of the telecommunications installer. The National Electrical Code ® and NEC...

  15. 49 CFR 393.40 - Required brake systems.

    Science.gov (United States)

    2010-10-01

    ... subpart. (2) Air brake systems. Buses, trucks and truck-tractors equipped with air brake systems and..., and 393.52 of this subpart. (4) Electric brake systems. Motor vehicles equipped with electric brake..., trucks and truck tractors manufactured on or after March 1, 1975, and trailers manufactured on or after...

  16. 49 CFR 399.207 - Truck and truck-tractor access requirements.

    Science.gov (United States)

    2010-10-01

    .... Exception. If air and electrical connections necessary to couple or uncouple a truck-tractor from a trailer... 49 Transportation 5 2010-10-01 2010-10-01 false Truck and truck-tractor access requirements. 399... Vehicles § 399.207 Truck and truck-tractor access requirements. (a) General rule. Any person entering or...

  17. Mutagenicity in Salmonella of a Simulated Urban-Smog Atmosphere Generated Using a Mobile Reaction Chamber

    Science.gov (United States)

    The EPA Mobile Reaction Chamber (MRC) is a 24-foot trailer containing a 14.3-m3 Teflon lined photochemical chamber used to generate simulated urban atmospheres. Photochemistry in the MRC is catalyzed by 120 fluorescent bulbs evenly mixed with black light bulbs and UV bulbs (300 &...

  18. 49 CFR 393.11 - Lamps and reflective devices.

    Science.gov (United States)

    2010-10-01

    ... dolly obscures the turn signals at the rear of the towing vehicle. Footnote—6Pole trailers shall be... signals and the two rear signals to flash simultaneously as a vehicular traffic signal warning, required... vehicle, exclusive of the signal lamps, marker lamps, outside rearview mirrors, flexible fender extensions...

  19. Preliminary Feasibility Report Stage II, Lorain Small-Boat Harbor, Lorain, Ohio. Revision.

    Science.gov (United States)

    1982-03-01

    frequently trailered, increasing numbers of auxillary powered sailboats and smaller, non- auxillary powered sailboats are creating excess demand for faci...in/outboards, 8 percent inboards, 16 percent sailboats, 8 percent auxillary sailboats, and 40 percent cruisers. The projected fleet mix by size is

  20. 75 FR 33664 - Hours of Service of Drivers: RockTenn, Application for Exemption

    Science.gov (United States)

    2010-06-14

    ... company cannot load or transport trailers with finished goods due to the absence of the drivers... ``work short,'' creating on-time delivery issues for other employees in the department, as they are not... the same work schedule as other RockTenn employees on their shift, and will be able to take advantage...

  1. Multiple application coded switch development report

    International Nuclear Information System (INIS)

    Bernal, E.L.; Kestly, J.D.

    1979-03-01

    The development of the Multiple Application Coded Switch (MACS) and its related controller are documented; the functional and electrical characteristics are described; the interface requirements defined, and a troubleshooting guide provided. The system was designed for the Safe Secure Trailer System used for secure transportation of nuclear material

  2. 76 FR 12694 - The 2010 Census Count Question Resolution Program

    Science.gov (United States)

    2011-03-08

    ...--A table containing data that shows information on total population, sex, age, race, Hispanic or... facilities, correctional facilities for adults and juveniles, and residential schools for people with... homes or trailers, groups of rooms, or a single room that is occupied as a separate living quarters, or...

  3. Forecasting the student–professor matches that result in unusually effective teaching

    Science.gov (United States)

    Gross, Jennifer; Lakey, Brian; Lucas, Jessica L; LaCross, Ryan; R Plotkowski, Andrea; Winegard, Bo

    2015-01-01

    Background Two important influences on students' evaluations of teaching are relationship and professor effects. Relationship effects reflect unique matches between students and professors such that some professors are unusually effective for some students, but not for others. Professor effects reflect inter-rater agreement that some professors are more effective than others, on average across students. Aims We attempted to forecast students' evaluations of live lectures from brief, video-recorded teaching trailers. Sample Participants were 145 college students (74% female) enrolled in introductory psychology courses at a public university in the Great Lakes region of the United States. Methods Students viewed trailers early in the semester and attended live lectures months later. Because subgroups of students viewed the same professors, statistical analyses could isolate professor and relationship effects. Results Evaluations were influenced strongly by relationship and professor effects, and students' evaluations of live lectures could be forecasted from students' evaluations of teaching trailers. That is, we could forecast the individual students who would respond unusually well to a specific professor (relationship effects). We could also forecast which professors elicited better evaluations in live lectures, on average across students (professor effects). Professors who elicited unusually good evaluations in some students also elicited better memory for lectures in those students. Conclusions It appears possible to forecast relationship and professor effects on teaching evaluations by presenting brief teaching trailers to students. Thus, it might be possible to develop online recommender systems to help match students and professors so that unusually effective teaching emerges. PMID:24953773

  4. 76 FR 58142 - Defense Federal Acquisition Regulation Supplement; Passive Radio Frequency Identification (DFARS...

    Science.gov (United States)

    2011-09-20

    ... following commodities, when shipped in rail tank cars, tanker trucks, trailers, other bulk wheeled... during shipment and storage. It can be a unit pack or a container with a combination of unit packs or... tag means a tag that reflects energy from the reader/interrogator or that receives and temporarily...

  5. Antimicrobial activity of ethyl acetate extract of Citrullus lanatus seeds

    African Journals Online (AJOL)

    on ethnomedicinal use of the plants [2]. Citrullus lanatus is a plant species that belongs to the family, Cucurbitaceae. It is a vine-like. (scrambler and trailer) flowering plant which originated from West Africa and often cultivated for its fruits. This species has two cultivars namely, watermelons (C. lanatus (Thunb.) var lanatus).

  6. DEFINITION OF OUTPUT ENERGY PARAMETERS OF A VEHICLE WITH AIR MOTOR

    Directory of Open Access Journals (Sweden)

    Voronkov, A.

    2013-06-01

    Full Text Available It was made trailer-speed motion analysis of minibus GAZ-2217 with air motor instead of the internal combustion engine and recommendations allowing to determine the output power of the power plant parameters for vehicle movement at low speed in urban cycle.

  7. 40 CFR 86.1920 - What in-use testing information must I report to EPA?

    Science.gov (United States)

    2010-07-01

    ... type or application (such as delivery, line haul, or dump truck). Also, identify the type of trailer... (CONTINUED) AIR PROGRAMS (CONTINUED) CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES (CONTINUED) Manufacturer-Run In-Use Testing Program for Heavy-Duty Diesel Engines § 86.1920 What in-use...

  8. 7 CFR 980.117 - Import regulations; onions.

    Science.gov (United States)

    2010-01-01

    ... inspection service. The Federal or the Federal-State Inspection Service, Food Safety and Quality Service, U.S... Vegetable Quality Division, Food Safety and Quality Service, Washington, D.C. 20250. Phone 202-447-5870 3 (4... railroad car initials and number, the truck and trailer license number, the name of the vessel, or other...

  9. 7 CFR 3300.4 - Definitions.

    Science.gov (United States)

    2010-01-01

    ... limited to, railcars, trucks, trailers, semitrailers, and intermodal freight containers that have an.... Perishable foodstuffs means the quick deep-frozen and frozen food products listed in Annex 2, and the chilled food products listed in Annex 3 to the ATP. Reference equipment means a unit of equipment which has...

  10. 7 CFR 980.1 - Import regulations; Irish potatoes.

    Science.gov (United States)

    2010-01-01

    ... Division, Plant Products Directorate, Canadian Food Inspection Agency, and which are subsequently used as... the Food of Plant Origin Division, Plant Products Directorate, Canadian Food Inspection Agency, are... initials and number, the truck and trailer number, the name of the vessel, or other identification of the...

  11. 7 CFR 980.212 - Import regulations; tomatoes.

    Science.gov (United States)

    2010-01-01

    ... the Federal-State Inspection Service, Food Safety and Quality Service, United States Department of.... 33 1 All other points Chief, Fresh Products Branch, Fruit and Vegetable Quality Division, Food Safety... number, the truck and trailer license number, the name of the vessel, or other identification of the...

  12. The experimental assessment of dynamic tire handling performance

    NARCIS (Netherlands)

    Pauwelussen, J.P.

    1999-01-01

    Testing of steady state tire handling performance is nowadays common practice with slip angle sweeps and breaking being simulated in the laboratory with drum or flat belt, or on the road with a test trailer. In recent years, more emphasis is put on dynamic tire models, motivated by ride comfort

  13. 75 FR 76692 - Federal Motor Vehicle Safety Standards; Small Business Impacts of Motor Vehicle Safety

    Science.gov (United States)

    2010-12-09

    ..., 510, 511, 512, 520, 523, 525, 526, and 571 [Docket No. NHTSA-2010-0159] Federal Motor Vehicle Safety Standards; Small Business Impacts of Motor Vehicle Safety AGENCY: National Highway Traffic Safety... that specifically relate to passenger cars, multipurpose passenger vehicles, trucks, buses, trailers...

  14. Power Product Equipment Technician: Outboard-Engine Boat Systems. Teacher Edition [and] Student Edition.

    Science.gov (United States)

    Hilley, Robert

    This curriculum guide contains teacher and student materials for a course on outboard-engine boat systems for power product equipment technician occupations. The course contains the following three units of instruction: (1) Orientation to Outboard-Engine Boat Systems and Rigging; (2) Trailers and Safe Towing and Boat Operation; and (3) Seasonal…

  15. High Resolution Trichromatic Road Surface Scanning with a Line Scan Camera and Light Emitting Diode Lighting for Road-Kill Detection

    Directory of Open Access Journals (Sweden)

    Gil Lopes

    2016-04-01

    Full Text Available This paper presents a road surface scanning system that operates with a trichromatic line scan camera with light emitting diode (LED lighting achieving road surface resolution under a millimeter. It was part of a project named Roadkills—Intelligent systems for surveying mortality of amphibians in Portuguese roads, sponsored by the Portuguese Science and Technology Foundation. A trailer was developed in order to accommodate the complete system with standalone power generation, computer image capture and recording, controlled lighting to operate day or night without disturbance, incremental encoder with 5000 pulses per revolution attached to one of the trailer wheels, under a meter Global Positioning System (GPS localization, easy to utilize with any vehicle with a trailer towing system and focused on a complete low cost solution. The paper describes the system architecture of the developed prototype, its calibration procedure, the performed experimentation and some obtained results, along with a discussion and comparison with existing systems. Sustained operating trailer speeds of up to 30 km/h are achievable without loss of quality at 4096 pixels’ image width (1 m width of road surface with 250 µm/pixel resolution. Higher scanning speeds can be achieved by lowering the image resolution (120 km/h with 1 mm/pixel. Computer vision algorithms are under development to operate on the captured images in order to automatically detect road-kills of amphibians.

  16. High Resolution Trichromatic Road Surface Scanning with a Line Scan Camera and Light Emitting Diode Lighting for Road-Kill Detection.

    Science.gov (United States)

    Lopes, Gil; Ribeiro, A Fernando; Sillero, Neftalí; Gonçalves-Seco, Luís; Silva, Cristiano; Franch, Marc; Trigueiros, Paulo

    2016-04-19

    This paper presents a road surface scanning system that operates with a trichromatic line scan camera with light emitting diode (LED) lighting achieving road surface resolution under a millimeter. It was part of a project named Roadkills-Intelligent systems for surveying mortality of amphibians in Portuguese roads, sponsored by the Portuguese Science and Technology Foundation. A trailer was developed in order to accommodate the complete system with standalone power generation, computer image capture and recording, controlled lighting to operate day or night without disturbance, incremental encoder with 5000 pulses per revolution attached to one of the trailer wheels, under a meter Global Positioning System (GPS) localization, easy to utilize with any vehicle with a trailer towing system and focused on a complete low cost solution. The paper describes the system architecture of the developed prototype, its calibration procedure, the performed experimentation and some obtained results, along with a discussion and comparison with existing systems. Sustained operating trailer speeds of up to 30 km/h are achievable without loss of quality at 4096 pixels' image width (1 m width of road surface) with 250 µm/pixel resolution. Higher scanning speeds can be achieved by lowering the image resolution (120 km/h with 1 mm/pixel). Computer vision algorithms are under development to operate on the captured images in order to automatically detect road-kills of amphibians.

  17. 26 CFR 41.4482(b)-1 - Definition of taxable gross weight.

    Science.gov (United States)

    2010-04-01

    ... Motor Vehicles § 41.4482(b)-1 Definition of taxable gross weight. (a) Actual unloaded weight—(1) In... general. The taxable gross weight of a highway motor vehicle is the sum of the actual unloaded weight of the vehicle fully equipped for service, the actual unloaded weight of any semitrailers or trailers...

  18. Familiar faces from abroad: Diaspora tourism in the Caribbean ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2012-03-02

    Mar 2, 2012 ... In other words, a great many people and institutions have an interest in ... rather than explore the country, and to favour indigenous cuisine and shopping. ... accommodation and to book outings related to history and heritage. ... Trailer of Forward Home on Youtube, also available with French subtitles.

  19. 49 CFR 393.43 - Breakaway and emergency braking.

    Science.gov (United States)

    2010-10-01

    ... ACCESSORIES NECESSARY FOR SAFE OPERATION Brakes § 393.43 Breakaway and emergency braking. (a) Towing vehicle protection system. Every motor vehicle, if used to tow a trailer equipped with brakes, shall be equipped with... brake systems installed on towed vehicles shall be so designed, by the use of “no-bleed-back” relay...

  20. 76 FR 32019 - Notice of Receipt of Petition for Decision That Nonconforming 2008-2010 M&V GmbH Siegmar Fzb...

    Science.gov (United States)

    2011-06-02

    ... achieve compliance with the standard. Standard No. 121 Air brake systems: The ABS braking diagnostic... Fzb trailers that were not originally manufactured to comply with all applicable Federal Motor Vehicle... search the Docket for new material. FOR FURTHER INFORMATION CONTACT: Coleman Sachs, Office of Vehicle...

  1. 75 FR 51521 - Federal Motor Vehicle Safety Standards; Air Brake Systems; Technical Report on the Effectiveness...

    Science.gov (United States)

    2010-08-20

    ....121) mandates antilock braking systems (ABS) on all new air-braked vehicles with a GVWR of 10,000...-0116] Federal Motor Vehicle Safety Standards; Air Brake Systems; Technical Report on the Effectiveness of Antilock Braking Systems in Heavy Truck Tractors and Trailers AGENCY: National Highway Traffic...

  2. VDTT removal system functional design criteria

    International Nuclear Information System (INIS)

    Legare, D.E.

    1996-01-01

    Two Velocity Density Temperature Trees (H-2-815016) are to be removed from risers 14A and 1B of tank 241-SY-101. This document provides functional design criteria for the removal system. The removal system consists of a Liquid Removal Tool, Flexible Receiver (H-2-79216), Burial Container, Transport Trailers, and associated equipment

  3. Fort Hood Building and Landscape Inventory with WWII and Cold War Context

    Science.gov (United States)

    2007-03-01

    barracks, 1970s (NARA)........................................................... 112 Figure 37. Palmer Movie Theater (NARA...revised 1953) showing layout of Hood Village and trailer park (Fort Hood...arms ammunition storage building #92012 (ERDC-CERL, 2004). ......... 260 Figure 163: Radio reception building #92063 (ERDC-CERL, 2004

  4. Army Sustainment. Volume 42, Issue 6, November-December 2010

    Science.gov (United States)

    2010-12-01

    movie theaters, internet cafés, and libraries, are...ping points; reception , staging, and onward integration yards; and airfields. Task force base support battalions provide direct sup- port to the units...vehicles. With approximately 3,500 vehicles, trailers , and generators, we needed a maintenance plan customized specifically to match our unique blend

  5. Air Force Research Laboratory Technology Milestones 2010

    Science.gov (United States)

    2010-01-01

    101 MUPI Conference Reception Features Keynote on AFRL Opportunities...adjustment, user markup annotation, screen capture, distance calculator, manual tracking, and movie creation—enabling users to exploit the...Manufacturing, Inc., nurse trailer (equipped with dust-control spray nozzles to provide water in the absence of a water vehicle at the site

  6. With Courage: The U.S. Army Air Forces in World War II,

    Science.gov (United States)

    1994-01-01

    SHAKESPEARE , Henry V Act I11, scene 1 Contents Foreword .......... ................... v Preface ........... .................. vii A Weapon and an Idea...reconnaissance pilot brought back film that revealed two large rockets lying on trailers at a research center in the Baltic hamlet of Peenemiinde. On the night of

  7. Wood Products Consumption for Industrial Markets in the United States, Testing a New Research Method

    Science.gov (United States)

    Craig Adair; David B. McKeever

    2013-01-01

    In early 2012, APA-The Engineered Wood Association conducted studies of three industries: institutional furniture, motor homes, and travel trailers and campers. The survey procedure was the same as that used by APA for many years. Lists of individual manufacturers were purchased, a telephone interviewing company was hired to administer a questionnaire, and APA...

  8. OCRWM Bulletin: Westinghouse begins designing multi-purpose canister

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-09-01

    This publication consists of two parts: OCRWM (Office of Civilian Radioactive Waste Management) Bulletin; and Of Mountains & Science which has articles on the Yucca Mountain project. The OCRWM provides information about OCRWM activities and in this issue has articles on multi-purpose canister design, and transportation cask trailer.

  9. Soil precompression stress, penetration resistance and crop yields in relation to differently-trafficked, temperate-region sandy loam soils

    DEFF Research Database (Denmark)

    Schjønning, Per; Lamandé, Mathieu; Munkholm, Lars Juhl

    2016-01-01

    . Undisturbed soil cores were used for quantifying the precompression stress (spc) of non-compacted soil. Tractor-trailer combinations for slurry application with wheel loads of 3, 6 and 8 Mg (treatments M3, M6, M8) were used for the experimental traffic in the spring at field-capacity. For one additional...

  10. OCRWM Bulletin: Westinghouse begins designing multi-purpose canister

    International Nuclear Information System (INIS)

    1995-01-01

    This publication consists of two parts: OCRWM (Office of Civilian Radioactive Waste Management) Bulletin; and Of Mountains ampersand Science which has articles on the Yucca Mountain project. The OCRWM provides information about OCRWM activities and in this issue has articles on multi-purpose canister design, and transportation cask trailer

  11. 49 CFR Appendix A to Part 375 - Your Rights and Responsibilities When You Move

    Science.gov (United States)

    2010-10-01

    ... all services performed. 5. You may request from your mover the availability of guaranteed pickup and... delays. This premium service is often subject to minimum weight requirements. High-Value Article—These... household goods in containers or trailers that are entirely loaded and unloaded by an individual other than...

  12. 26 CFR 1.103-10 - Exemption for certain small issues of industrial development bonds.

    Science.gov (United States)

    2010-04-01

    ... issuance of the issue in question on its books or records with respect to the issue. The term “books or... warehouse terminal in the same city at a cost of $250,000 and tractor-trailers and other automotive...

  13. Analysis of an Affordability Index Model for Marine Corps Ground Combat Equipment

    Science.gov (United States)

    2004-12-01

    percentage of sales at standard price • Inventory turns Readiness and Sustainability Perspectives: • Upside production flexibility In addition to the...400 Gal, M149A2 D0881 35 Trailer, Ribbon, MK18 /A1 D1001 30 Truck, Ambulance, 4 Litter, Armored, 1 1/4-Ton, HMMWV, M997 D1002 30 Truck

  14. Street-Legal Bike Pusher Introduces EV Technology

    Science.gov (United States)

    Moore, Tim

    2011-01-01

    The electric bicycle pusher is a legal bicycle trailer on wheels that can push a bicycle at speeds of up to 35 mph. People across the country are buying small electric cars that go no faster than that--and paying five times more than what one pays to make an electric bicycle pusher. In this article, the author provides some information on electric…

  15. 29 CFR 1926.914 - Definitions applicable to this subpart.

    Science.gov (United States)

    2010-07-01

    ..., including but not limited to trucks, trailers, rail cars, barges, and vessels. (i) Detonating cord—A... caps, electric blasting caps, delay electric blasting caps, and nonelectric delay blasting caps. (k) Electric blasting cap—A blasting cap designed for and capable of detonation by means of an electric current...

  16. Adspots and Green Eyes: 'National' Identity in Irish TV Commercials and Other 'Marginal' Areas of Irish Television.

    Science.gov (United States)

    McBride, Stephanie

    This paper discusses the relationship between national identity and the so-called "marginal" areas of Irish television, i.e., advertisements, continuity announcements, and promotional trailers. The following issues are considered: (1) how these "spaces" between television programs compare in terms of use and influence to…

  17. Travelling inside the SPS tunnel

    CERN Multimedia

    1974-01-01

    The golf cart proved to be a very useful form of transport around the 7 km circumference of the machine. It could carry four passengers and pull light equipment in its trailer. Here Peter Zettwoch is the driver along a mock-up tunnel for installation tests. (see photo 7401011X and Photo Archive 7401018)

  18. Advantages and disadvantages of untrimmed wood in the supply chain

    Science.gov (United States)

    Jason Thompson; Dana Mitchell; John. Klepac

    2014-01-01

    Very few companies that purchase forest products accept untrimmed trees (whole-trees including limbs and tops). Those that do accept untrimmed trees have been doing so for decades. A potential benefit of hauling untrimmed trees is higher in-woods productivity due to less processing of the trees. Disadvantages for the logging contractor can include specialized trailers...

  19. 77 FR 59829 - List of Nonconforming Vehicles Decided To Be Eligible for Importation

    Science.gov (United States)

    2012-10-01

    ... Cimarron 2006-2007 ..... ..... 37 trailer. Chevrolet 400SS 1995 150 ..... ..... Chevrolet Astro Van... ..... ..... Harley Davidson (MC)......... FX, FL, XL & VR 2004 422 ..... ..... Series. Harley Davidson (MC)......... FX, FL, XL & VR 2008 517 ..... ..... Series. Harley Davidson (MC)......... FX, FL, XL & VR 2009 522...

  20. 49 CFR Appendix A to Part 593 - List of Vehicles Determined To Be Eligible for Importation

    Science.gov (United States)

    2010-10-01

    ... 900 1999 444 Carrocerias Cimarron trailer 2006-2007 37 Chevrolet 400SS 1995 150 Chevrolet Astro Van... Freightliner FTLD112064SD 1991-1996 178 GMC Suburban 1992-1994 134 Harley Davidson (MC) FX, FL, XL Series 1998 253 Harley Davidson (MC) FX, FL, XL Series 1999 281 Harley Davidson (MC) FX, FL, XL Series 2000 321...

  1. 76 FR 59578 - List of Nonconforming Vehicles Decided To Be Eligible for Importation

    Science.gov (United States)

    2011-09-27

    ... Carrocerias Cimarron trailer........ 2006-2007 37 Chevrolet 400SS 1995 150 Chevrolet Astro Van 1997 298... Davidson (MC) FX, FL, XL Series....... 1998 253 Harley Davidson (MC) FX, FL, XL Series....... 1999 281 Harley Davidson (MC) FX, FL, XL Series....... 2000 321 Harley Davidson (MC) FX, FL, XL Series....... 2001...

  2. 75 FR 69079 - Notice of Agreements Filed

    Science.gov (United States)

    2010-11-10

    ... World Liner Data Agreement. Parties: A.P. Moller-Maersk A/S; CMA CGM S.A.; Compania Chilena de... from ports in Mexico to the U.S. Atlantic ports. Agreement No.: 012110. Title: Trailer Bridge/HLUSA...

  3. Leachate storage transport tanker loadout piping

    International Nuclear Information System (INIS)

    Whitlock, R.W.

    1994-01-01

    This report contains schematic drawings for the pipe fittings for the Hanford waste tanks. Included are the modifications to the W-025 trench number-sign 31 leachate loadout piping, and also the modifications to the tanker trailers. The piping was modified to prevent spillage to the environment. The tankers were modified for loading and unloading purposes

  4. A Pro-Forma approach to Car-Carrier Design

    CSIR Research Space (South Africa)

    Benade, R

    2016-11-01

    Full Text Available In this work a pro-forma approach is developed for assessing truck and centre-axle tag-trailer or 50/50 car-carrier designs in terms of their compliance with the South African Performance-Based Standards (PBS) pilot project requirements. First...

  5. 40 CFR 610.64 - Track test procedures.

    Science.gov (United States)

    2010-07-01

    ... truck or trailer. (4) Fuel economy will be determined by either a gravimetric or volumetric method. (c... dynamometer except that fuel economy will be measured by gravimetric or volumetric methods. ... either a volumetric or gravimetric procedure approved by the Administrator. (5) Vehicle speed and...

  6. Transfer of Department of Defense Managed Sustainment Programs in Iraq to Department of State Control

    Science.gov (United States)

    2013-05-22

    responsible for conducting Reception , Staging, Onward movement, and Integration of personnel and equipment, the distribution management of supplies...temperature refrigerated containers or leased refrigerated containers on semi- trailers . Class III Distribution As the DoD executive agent, DLA is...quantitative approach involves the investigation of a human or social problem, and tests the theory based on the collection of variables, numerically

  7. Invoering van contourmarkering voor het bestaande vrachtwagenpark : effecten en kosteneffectiviteit van retrofit in Nederland en in Europa.

    NARCIS (Netherlands)

    Wijnen, W. Bax, C.A. Stipdonk, H.L. Wegman, R.W.N. & Bos, N.M.

    2015-01-01

    Retrofit introduction of contour marking for lorries. The Netherlands has an annual number of approximately 300 fatal or serious injury crashes involving lorries (rigid lorries, articulated lorries and trailers). European Commission CARE data indicates that in 2010 around 5000 people died on EU

  8. Fuzzy Logic Based Control of the Lateral Stability of Tractor Semitrailer Vehicle

    Directory of Open Access Journals (Sweden)

    Xiujian Yang

    2015-01-01

    Full Text Available A novel control scheme is proposed to improve the yaw stability of a tractor semitrailer vehicle in critical situations. The control scheme is a two-layer structure consisting of an upper yaw moment controller and a lower brake force distributor. The tractor and the trailer are, respectively, stabilized by two independent fuzzy logic based yaw moment controllers. The controllers for the tractor and the trailer are, respectively, designed to track the reference yaw rate of the tractor and the hitch angle between the tractor and the trailer while considering the variation of the hitch angular rate at the same time. The corrective yaw moments determined by the corresponding upper fuzzy yaw moment controllers are realized by active wheel braking. The performance of the proposed control scheme is evaluated by simulations on a nonlinear vehicle model. The results demonstrate that the proposed control scheme is robust and effective in stabilizing the severe instabilities such as jackknife and trailer oscillation in the chosen simulation scenarios. It is believed that this control scheme is robust to the variation of road adhesion conditions.

  9. 78 FR 13755 - Notice of Receipt of Petition for Decision That Nonconforming 2003 Jeep Wrangler Multi-Purpose...

    Science.gov (United States)

    2013-02-28

    .... Mail: Docket Management Facility: U.S. Department of Transportation, 1200 New Jersey Avenue SE., West... Read Comments submitted to the Docket: You may read the comments received by Docket Management at the... mirror. Standard No. 110 Tire Selection and Rims and Motor Home/Recreation Vehicle Trailer Load Carrying...

  10. 77 FR 40092 - License Amendment To Increase the Maximum Reactor Power Level, Florida Power & Light Company, St...

    Science.gov (United States)

    2012-07-06

    ... canal. In addition, FPL's IWFP permit requires FPL to monitor aquatic organism entrapment in the intake... mitigate such entrapment. The predicted 3 [deg]F (1.7 [deg]C) temperature increase from the diffusers and... homes, apartments, mobile homes, and camper-trailers. The 2010 American Community Survey 1-year estimate...

  11. 25 CFR 247.1 - What definitions apply to this part?

    Science.gov (United States)

    2010-04-01

    ... Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE USE OF COLUMBIA RIVER... processing fish. Abandoned property may include: (1) Vehicles; (2) Mobile trailers; (3) Campers; (4) Tents..., destroy, cut, chop, girdle, dig, excavate, kill or in any way harm or disturb. Secretary means the...

  12. Radioactive materials transportation by motorbike in entire Brazil territory

    International Nuclear Information System (INIS)

    2006-09-01

    This Regulation refers to the interpretation of the term vehicle in the Chapter 3 of the CNEN-NE.5.01 'Vehicle: road vehicle (including articulated vehicle, i.e., combination of tractor and semi-trailer), car or railway wagon. Each wagon should be considered a separate vehicle'. This definition does not include the possibility of radioactive material transportation by motorbike

  13. Amphibious Ready Group/Marine Expeditionary Unit Readiness Training Final Environmental Assessment

    Science.gov (United States)

    2003-04-11

    highway and non-road. Highway vehicles range in size from gasoline -powered motorcycles and cars to large diesel-powered tractor-trailers. USEPA has...Panama City, Florida. Miller, K., G.C. Packard, and M.J. Packard. 1987. Hydric conditions during incubation influence locomotor performance of hatchling

  14. 26 CFR 41.4481-1 - Imposition of tax.

    Science.gov (United States)

    2010-04-01

    ... of an overpayment of tax under section 4481(a) due to destruction or theft of the vehicle shall be... TAXES EXCISE TAX ON USE OF CERTAIN HIGHWAY MOTOR VEHICLES Tax on Use of Certain Highway Motor Vehicles... registered highway motor vehicle that (together with the semitrailers and trailers customarily used in...

  15. 78 FR 12296 - Procurement List; Proposed Additions

    Science.gov (United States)

    2013-02-22

    ... services are proposed for addition to the Procurement List for production by the nonprofit agencies listed... and Trailer Wash, 55 GL NSN: 7930-00-NIB-0649--Cleaner/Degreaser, Heavy Duty, Biodegradable, Car and Trucks, 5 GL NSN: 7930-00-NIB-0650--Cleaner/Degreaser, Heavy Duty, Biodegradable, Car and Trucks, 55 GL...

  16. Over-the-road tests of nuclear materials package response to normal environments

    International Nuclear Information System (INIS)

    Gwinn, K.W.; Glass, R.E.; Edwards, K.R.

    1991-12-01

    In support of the development of American National Standards Institute standards for the transport of radioactive materials, Sandia has a program to characterize the normal transport environment. This program includes both analytical modeling of package and trailer responses, and over-the-road tests to measure those responses. This paper presents the results of a series of over-the-road tests performed using Chem-Nuclear equipment in the Barnwell, SC, area. The test events included a variety of road types such as rough concrete, shock events such as railroad grade crossings, and driver responses such as sharp turns. The response of the package and trailer to these events was measured with accelerometers at various locations to determine the inertial loads. Either load cells or strain gages were used to measure tiedown response. These accelerations and loads were measured on systems with flexible and ''rigid'' tiedowns. The results indicated that while significant accelerations occur on the trailer bed, these do not translate into equivalent loads in either the package or the tiedown system. This indicates that trailer-bed response should not be used in determining the load factor for fatigue calculations of the package components or in determining design loads for tiedowns

  17. 12 CFR Supplement I to Part 226 - Official Staff Interpretations

    Science.gov (United States)

    2010-01-01

    ...) is mandatory for marketing occurring on or after February 14, 2010. Compliance with the final rules... §§ 226.2(a)(24), 226.15, and 226.23. 2. Use as a residence. Mobile homes, boats, and trailers are...

  18. 76 FR 7623 - Parts and Accessories Necessary for Safe Operation; Brakes; Application for Exemption From...

    Science.gov (United States)

    2011-02-10

    ... potential significant market penetration in commercial trailers equipped with electric brakes. Consequently... current definition of a surge brake. DATES: Comments must be received on or before March 14, 2011... originally submitted, and suggested that the definition of surge brakes may someday require modification. For...

  19. Warfighter Support: Army Has Taken Steps to Improve Reset Process, but More Complete Reporting of Equipment and Future Cost Is Needed

    Science.gov (United States)

    2012-05-01

    asphalt spreaders ), other semi-trucks and trailers, palletized loading systems, and heavy equipment transports. As table 3 shows, the actual reset...Copies of GAO Reports and Testimony Order by Phone Connect with GAO To Report Fraud, Waste, and Abuse in Federal Programs Congressional Relations Public Affairs Please Print on Recycled Paper.

  20. Evaluation of the Reformation of Navy Personally Procured Transportation

    Science.gov (United States)

    2010-12-01

    but also has multiple categories of items such as desks and dressers /chests. There is little explanation or definition of the categories, which may...rents a large truck/trailer for a cross -country trip. To receive the 60 percent advance on the monetary incentive, service members must go to the