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Public Works and Government Services Canada is the department of the government of Canada with responsibility for the government's internal servicing and administration.The Minister of Public Works and Government Services is the Honourable Diane Finley.Branches of Public Works and Government Services Canada Accounting, Banking and Compensation Acquisitions Departmental Oversight Finance and Administration Human Resources Information Technology Services Integrated Services Legal Services Parliamentary Precinct Policy, Planning and Communications Real PropertySpecial Operating Agencies reporting to Public Works and Government Services Canada Shared Services Canada Translation BureauFormer Branches of Public Works and Government Services CanadaCommunication Canada The PWGSC is member of the Procurement G6, an informal group leading the use of framework agreements and e-procurement instruments in Public procurement. Wikipedia.

Yu Z.,Concordia University at Montreal | Fung B.C.M.,Concordia University at Montreal | Haghighat F.,Concordia University at Montreal | Yoshino H.,Tohoku University | Morofsky E.,Public Works and Government Services Canada
Energy and Buildings | Year: 2011

Efforts have been devoted to the identification of the impacts of occupant behavior on building energy consumption. Various factors influence building energy consumption at the same time, leading to the lack of precision when identifying the individual effects of occupant behavior. This paper reports the development of a new methodology for examining the influences of occupant behavior on building energy consumption; the method is based on a basic data mining technique (cluster analysis). To deal with data inconsistencies, min-max normalization is performed as a data preprocessing step before clustering. Grey relational grades, a measure of relevancy between two factors, are used as weighted coefficients of different attributes in cluster analysis. To demonstrate the applicability of the proposed method, the method was applied to a set of residential buildings' measurement data. The results show that the method facilitates the evaluation of building energy-saving potential by improving the behavior of building occupants, and provides multifaceted insights into building energy end-use patterns associated with the occupant behavior. The results obtained could help prioritize efforts at modification of occupant behavior in order to reduce building energy consumption, and help improve modeling of occupant behavior in numerical simulation. © 2011 Elsevier B.V. Source

Yu Zhun Jerry Z.J.,Concordia University at Montreal | Haghighat F.,Concordia University at Montreal | Fung B.C.M.,Concordia University at Montreal | Morofsky E.,Public Works and Government Services Canada | Yoshino H.,Tohoku University
Energy | Year: 2011

This paper reports the development of a methodology for identifying and improving occupant behavior in existing residential buildings. In this study, end-use loads were divided into two levels (i.e. main and sub-category), and they were used to deduce corresponding two-level user activities (i.e. general and specific occupant behavior) indirectly. The proposed method is based on three basic data mining techniques: cluster analysis, classification analysis, and association rules mining. Cluster analysis and classification analysis are combined to analyze the main end-use loads, so as to identify energy-inefficient general occupant behavior. Then, association rules are mined to examine end-use loads at both levels, so as to identify energy-inefficient specific occupant behavior. In order to demonstrate its applicability, this methodology was applied to a group of residential buildings in Japan, and one building with the most comprehensive household appliances was selected as the case building. The results show that, for the case building, the method was able to identify the behavior which needs to be modified, and provide occupants with feasible recommendations so that they can make required decisions. Also, a reference building can be identified for the case building to evaluate its energy-saving potential due to occupant behavior modification. The results obtained could help building occupants to modify their behavior, thereby significantly reducing building energy consumption. Moreover, given that the proposed method is partly based on the comparison with similar buildings, it could motivate building occupants to modify their behavior. © 2011 Elsevier Ltd. Source

Nassr A.A.,McMaster University | Razaqpur A.G.,McMaster University | Tait M.J.,McMaster University | Campidelli M.,McMaster University | Foo S.,Public Works and Government Services Canada
International Journal of Impact Engineering | Year: 2013

A Single-Degree-of-Freedom (SDOF) model is used to determine the effect of axial load on column strength and stability during a blast event. The model, which accounts for the axial load-bending interaction (P-δ effect) and strain rate effect on the column dynamic response, is validated by comparing its results with experimental data from blast tests on full scale steel columns and with the results of the finite element software LS-DYNA. Maximum displacements and moments obtained from SDOF analysis are also compared with the results of the interaction formulas recommended by the Unified Facilities Criteria (UFC 3-340-02) design manual for steel structures. It is shown that the UFC method overestimates the column capacity for ductility ratios μ greater than one, irrespective of the axial load to Euler elastic buckling load ratio (P/P e). Also for P/Pe > 0.5, even if μ < 1.0, the UFC method still overestimates the actual column capacity. For dealing with this problem in practical applications, non-dimensional beam column curves are developed to include the effects of the blast load and column properties on both its strength and stability. © 2012 Elsevier Ltd. All rights reserved. Source

Nassr A.A.,McMaster University | Razaqpur A.G.,McMaster University | Tait M.J.,McMaster University | Campidelli M.,McMaster University | Foo S.,Public Works and Government Services Canada
Nuclear Engineering and Design | Year: 2012

This paper presents detailed analysis of the results of field tests on 13 full scale wide flange steel beams subjected to blast loads generated by the detonation of up to 250 kg of ANFO explosive. The experimental results are analyzed using an equivalent Single-Degree-of-Freedom (SDOF) model of a beam, which includes material nonlinearity and strain rate effects. To account for strain rate effect on beam stiffness and strength, its full moment-curvature response is determined by dividing its cross-section into a number of layers and a strain rate-dependent stress-strain relationship, based on the Cowper-Symonds strain rate model, is used to capture the nonlinear stress distribution over the section. To determine the effects of higher modes of vibration and the variation of beam mechanical properties along its length on its dynamic response, the test beams are also analyzed using a Multi-Degree-of-Freedom (MDOF) model involving beam finite elements. Each element has two nodes and three degrees of freedom and is again divided into a number of layers to capture the strain rate effect and nonlinear stress distribution over its depth. The predicted displacements and strains by the two models are compared with the corresponding experimental data and the results show that for the given beams, the time-dependant deformations, internal forces, and moments can be adequately predicted by either model because the first mode of vibration is found to dominate their response; however, the use of a constant strain rate through the so-called Dynamic Increase Factor (DIF) can lead to highly conservative estimate of the actual strength of such members. © 2011 Elsevier B.V. All rights reserved. Source

News Article
Site: http://www.labdesignnews.com/rss-feeds/all/rss.xml/all

The International Institute for Sustainable Laboratories (I2SL) is pleased to acknowledge the winners of the 2015 Go Beyond Awards. Go Beyond Award winners demonstrate their commitment to excellence in sustainability in lab and other high-tech facility projects by going beyond the facility itself to consider shared resources, infrastructure, services and neighboring communities; and contribute to increased use of energy-efficient and environmentally sustainable designs, systems and products. The 2015 Go Beyond Awards were presented during a special luncheon ceremony at the 2015 I2SL Annual Conference on Monday, September 21, 2015, in San Diego, Calif. I2SL presented four 2015 Go Beyond Awards in two categories: Individual and Project. James Dykes, Sustainable Labs Canada James Dykes, a recently retired architect from Public Works and Government Services Canada (PWGSC), received an Individual Go Beyond Award for his many years of commitment to making sustainability a key factor in lab design. Dykes is the Founding President of, and driving force behind, Sustainable Labs Canada (SLCan), a non-profit organization that promotes sustainable design and operation practices in labs and other high-tech facilities. Dykes developed and strengthened relationships between SLCan and the Real Property Institute of Canada (RPIC), I2SL and other organizations in Europe with similar goals. As a member of the RPIC Board of Directors, Dykes acted as the lab business sector representative from PWGSC, ensuring content included lab-focused issues in the RPIC Real Property National Workshop Program. Over the course of his career, Dykes has served on numerous volunteer boards, delivered conference presentations on lab design, guest lectured at several universities and colleges and was an Assistant Adjunct Professor with the Univ. of Calgary for 12 years. He worked with the Labs21 program for most of its existence, and continues to participate in I2SL’s Global Sustainable Laboratory Network. Allison Paradise, My Green Lab The second Individual Award was presented to Allison Paradise, Executive Director of My Green Lab, a non-profit organization that promotes safe, sustainable practices and equipment in labs. Paradise has been a passionate champion and advocate for sustainable lab practices since before she began the My Green Lab program several years ago. Through My Green Lab, Paradise partners with organizations to implement energy reduction, water reduction, waste management and green chemistry programs; and connects lab personnel with sustainable procurement opportunities. Working with utility providers in California, Paradise prepared the “Market Assessment of Energy Efficiency Opportunities in Laboratories,” which involved a survey of equipment use and energy efficiency that was given to almost 1,200 scientists and lab operators across the U.S. The survey identified energy-efficiency opportunities in labs that Paradise is helping to drive forward through the creation of the Center for Energy Efficient Laboratories. Jackson Laboratory for Genomic Medicine, Farmington, Conn. One of this year’s Project Awards was presented to the Jackson Laboratory for Genomic Medicine, a global leader in considering the environmental impact of its facilities and operations. The Jackson Laboratory combines inviting collegial space with efficient labs, while using a variety of energy conservation measures to maximize building performance. The lab maximizes daylight while limiting peak solar loads, and utilizes high-efficiency equipment and an improved thermal envelope. To ensure indoor air quality, the lab also has a monitoring system and occupancy sensors with the ability to reduce outdoor air during unoccupied times. The building water use is more than 30% better than code compliance. Water-saving measures include the installation of water-efficient fixtures, rainwater harvesting, bioswales and native plantings. Through these measures, the lab has also reduced the amount of stormwater runoff at the property. In addition to the ongoing energy and water savings, more than 97% of construction waste was diverted from landfill throughout the project. National Univ. of Ireland, Galway Biosciences Research Building, Galway, Ireland The second Project Award was presented to the National Univ. of Ireland, Galway, Biosciences Research Building (BRB), a research lab for regenerative medicine, chem-bio and cancer. The BRB represents a “minimum energy” approach. Through careful planning and high-/low-energy zoning, the BRB integrates traditional building techniques with innovative energy-conservation solutions, resulting in an energy savings of about 70% annually against a baseline of comparable projects. The high-/low-energy zoning strategy wraps the perimeter of the building with the lowest energy use spaces, allowing for maximum daylighting and natural ventilation, while the high-energy use spaces are zoned within the “thermal sweater” of the lower use spaces, using a double wall system to separate ventilation systems and optimizing building-wide energy use. The 2015 Go Beyond Award winners can also be found on I2SL’s Website at www.i2sl.org/conference/2015/awards.html. I2SL plans to hold the Go Beyond Awards again in 2016. A call for nominations will be sent in summer 2016 and awards will be presented at the 2016 I2SL Annual Conference, taking place September 25 through 27 in Kansas City, Mis. Learn more about the I2SL Annual Conference by visiting I2SL’s Website www.i2sl.org.

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