Note: This page contains sample records for the topic design procurement construction from Science.gov.
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Last update: August 15, 2014.
1

Design, construction, and procurement methodology of magnets for the 7GeV Advanced Photon Source  

Microsoft Academic Search

All major magnets of the Advanced Photon Source (APS) have now been measured and installed in the facility. This paper describes the mechanical design, construction, procurement philosophy and methodology, and lessons learned from the construction and procurement of more than 1500 magnets for the APS storage ring, injector synchrotron ring, and positron accumulator ring

A. Gorski; J. Argyrakis; J. Biggs; E. Black; J. Humbert; J. Jaggert; K. Thompson

1995-01-01

2

13 CFR 305.6 - Allowable methods of procurement for construction services.  

Code of Federal Regulations, 2010 CFR

...of procurement for construction services. 305...Requirements for Approved Projects § 305.6 Allowable...of procurement for construction services. (a...design/build, construction management at risk and force...

2010-01-01

3

13 CFR 305.6 - Allowable methods of procurement for construction services.  

Code of Federal Regulations, 2010 CFR

...of procurement for construction services. 305...Requirements for Approved Projects § 305.6 Allowable...of procurement for construction services. (a...design/build, construction management at risk and force...

2009-01-01

4

Environmental consideration in procurement of construction contracts: current practice, problems and opportunities in green procurement in the Swedish construction industry  

Microsoft Academic Search

Research and initiatives concerning green procurement have to a great extent focused on products. This article, however, explores the current practice, problems and opportunities of green procurement of construction contracts. In particular, the application of environmental criteria for contract awarding is targeted. The findings of the study indicate that both public and private clients in the Swedish construction industry take

Annika Varns; Berit Balfors; Charlotta Faith-Ell

2009-01-01

5

44 CFR 150.6 - Design and procurement of awards.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Design and procurement of awards...SAFETY OFFICERS § 150.6 Design and procurement of awards...the Treasury and the Executive Office of the President in regard to the design and procurement of the...

2013-10-01

6

22 CFR 228.17 - Special procurement rules for construction and engineering services.  

Code of Federal Regulations, 2013 CFR

...procurement rules for construction and engineering services. 228.17 Section 228...procurement rules for construction and engineering services. Advanced developing countries...markets for construction services or engineering services are not eligible to...

2013-04-01

7

48 CFR 52.223-2 - Affirmative Procurement of Biobased Products Under Service and Construction Contracts.  

Code of Federal Regulations, 2013 CFR

...For example, all USDA-designated items are exempt from the preferred procurement requirement for the following: (i) Spacecraft system and launch support equipment. (ii) Military equipment, i.e. , a product or system designed or procured...

2013-10-01

8

Design and engineering analysis of material procurement mobile operation platform  

NASA Astrophysics Data System (ADS)

The material procurement mobile operation platform (MPMOP) consists of six modules, including network operation, truck transportation, remote communication, satellite positioning, power supply and environment regulation. The MPMOP is designed to have six major functions, including online procurement, command control, remote communication, satellite positioning, information management and auxiliary decision. The paper implements an engineering analysis on the MPMOP from three aspects, including transportation transfinite, centroid, and power dissipation.

Ding, H.; Li, J.

2014-03-01

9

How procurement options influence risk management in construction projects  

Microsoft Academic Search

Before proceeding with a project, a client has to choose an appropriate procurement option that facilitates an effective project organization in general and a thorough risk management process in particular. By identifying three procurement variables that have a major influence on risk management: project delivery method, form of payment, and use of collaboration or partnering arrangements, the effect of each

Ekaterina Osipova; Per Erik Eriksson

2011-01-01

10

Design and Procurement of the European Dipole (EDIPO) Superconducting Magnet  

Microsoft Academic Search

A 12.5 T superconducting dipole magnet (European DIPOle, EDIPO) has been designed by EFDA and it is now being procured within the framework of the European Fusion Programme in order to be installed in CRPP-PSI. This saddle-shaped magnet is designed to reach 12.5 T in a 100 times 150 mm rectangular bore over a length of about 1.5 m in

A. Portone; W. Baker; E. Salpietro; A. Vostner; P. Bruzzone; F. Cau; A. della Corte; A. Di Zenobio; E. Theisen; A. Baldini; P. Testoni; J. Lucas; M. Pinilla; G. Samuelli

2008-01-01

11

Reengineering of construction project procurement process on bill of quantities  

Microsoft Academic Search

The promulgation of The Code of Valuation with Bill of Quantities of Construction Works has resulted in a transformation and revolution in China construction industry. It's essential and crucial to perform BPR (Business Process Reengineering) for Chinese construction corporations to succeed, even survive. Managers must fundamentally rethink and radically redesign the structures of their organizations as well as the operating

Qi-jun Chen; Ji-feng Yang; Qi-hui Li

2011-01-01

12

Web-based Global procurement platform design and implementation  

Microsoft Academic Search

The competition in international commercial activities, especially in retailing and mechanical trades, is increasingly intense. In such a situation, there is not any wiser choice than the Global E-procurement system. However, large numbers of domestic enterprises encounter various problems when dealing with the system. So in this paper, a systematic solution to the E-procurement platform is presented. This solution is

Chai Chunlai

2008-01-01

13

23 CFR 636.109 - How does the NEPA process relate to the design-build procurement process?  

Code of Federal Regulations, 2010 CFR

...How does the NEPA process relate to the design-build procurement process? 636... ENGINEERING AND TRAFFIC OPERATIONS DESIGN-BUILD CONTRACTING General § 636...How does the NEPA process relate to the design-build procurement process?...

2010-04-01

14

23 CFR 636.109 - How does the NEPA process relate to the design-build procurement process?  

Code of Federal Regulations, 2010 CFR

...How does the NEPA process relate to the design-build procurement process? 636... ENGINEERING AND TRAFFIC OPERATIONS DESIGN-BUILD CONTRACTING General § 636...How does the NEPA process relate to the design-build procurement process?...

2009-04-01

15

System dynamics modeling of design and build construction projects  

Microsoft Academic Search

Design and build (D\\/B) construction methods have gained more importance in recent years for their potential advantages in improving project performance. There are, however, a number of problems that are commonplace in D\\/B procurement, which, when they interact with each other, can lead to project time and cost overrun problems. The most important among them are design changes, together with

S. Chritamara; S. O. Ogunlana; N. L. Bach

2002-01-01

16

Supply chain and material procurement for post disaster construction: the Boxing Day Tsunami reconstruction experience in Aceh, Indonesia  

Microsoft Academic Search

In order to accommodate the growing complexity of construction process, various management systems and methods have been developed through academic research and applied in industry practices. Among those, supply chain management (SCM), as a significant component in construction material procurement, becomes increasingly popular, especially within the context of broader cooperation, vertical disintegration and the viewpoint of a networked supply chain

Kelvin Zuo; Suzanne Wilkinson; Regan Potangaroa

17

Research on the Strategy of Construction Material Procurement When the Price Fluctuation Is Considered  

Microsoft Academic Search

Analyzed the contractor's material procurement process and management, and put forward that the contractor should use the quantitative order methods to order the material. Ensure the material supply timely, at the same time, also considered the impact of price fluctuations, and accordingly two kinds of procurement adjustment strategy are given, which can make the procurement cost and total inventory cost

Yang Gaosheng; Huang Ge; Gao Hui

2010-01-01

18

77 FR 69381 - Designation of Product Categories for Federal Procurement  

Federal Register 2010, 2011, 2012, 2013

...the minimum biobased content levels for designated...the minimum biobased contents are based on a single...today and if additional data on the biobased contents for products within...categories that contain the highest biobased content....

2012-11-19

19

75 FR 63695 - Designation of Biobased Items for Federal Procurement  

Federal Register 2010, 2011, 2012, 2013

...EPA-designated recovered content products may occur...product's biobased content and its profile against...item composed of the highest percentage of recovered materials content practicable. However...biobased content test data. In addition to...

2010-10-18

20

Model Construction for Configuration Design  

Microsoft Academic Search

In this paper, we motivate the use of the expressive description logic ALCQF(D) with acyclic TBoxes for configuration design of structural systems. A solution to the design problem is automatically constructed from problem-specific constraints given in the ABox and the persistent conceptual description about the structure and its behaviour in the TBox. Furthermore, we argue that the configuration design problem,

Michael Eisfeld

21

Linking construction fatalities to the design for construction safety concept  

Microsoft Academic Search

Research and practice have demonstrated that decisions made upstream from the construction site can influence construction worker safety. The design for construction safety concept is defined as the consideration of construction site safety in the design of a project. Globally, the concept has gained momentum as an intervention to improve worker safety. However, in the US construction industry, numerous barriers

Michael Behm

2005-01-01

22

Innovative Bridge Design/Construction Techniques to Expedite Construction.  

National Technical Information Service (NTIS)

This project examined various methods of innovative bridge design and construction techniques to expedite construction. The following methods have been identified as possible methods of reducing the time needed for bridge construction: (a) Precast substru...

R. A. Miller

2005-01-01

23

The evaluation of private prison design and construction submissions in Australia: prison operator responses  

Microsoft Academic Search

A number of Australian states have employed private correctional companies to both manage, and design and construct their own facilities. Such projects have employed alternative delivery methods from what had been traditionally procured state facilities. The study highlights private prison operators' responses to the evaluation of their Request for Proposal by state governments. The findings reveal that although the evaluation

Giustina G. S. Consoli

2004-01-01

24

Facility design, construction, and operation  

SciTech Connect

France has been disposing of low-level radioactive waste (LLW) at the Centre de Stockage de la Manche (CSM) since 1969 and now at the Centre de Stockage de l`Aube (CSA) since 1992. In France, several agencies and companies are involved in the development and implementation of LLW technology. The Commissariat a l`Energie Atomic (CEA), is responsible for research and development of new technologies. The Agence National pour la Gestion des Dechets Radioactifs is the agency responsible for the construction and operation of disposal facilities and for wastes acceptance for these facilities. Compagnie Generale des Matieres Nucleaires provides fuel services, including uranium enrichment, fuel fabrication, and fuel reprocessing, and is thus one generator of LLW. Societe pour les Techniques Nouvelles is an engineering company responsible for commercializing CEA waste management technology and for engineering and design support for the facilities. Numatec, Inc. is a US company representing these French companies and agencies in the US. In Task 1.1 of Numatec`s contract with Martin Marietta Energy Systems, Numatec provides details on the design, construction and operation of the LLW disposal facilities at CSM and CSA. Lessons learned from operation of CSM and incorporated into the design, construction and operating procedures at CSA are identified and discussed. The process used by the French for identification, selection, and evaluation of disposal technologies is provided. Specifically, the decisionmaking process resulting in the change in disposal facility design for the CSA versus the CSM is discussed. This report provides` all of the basic information in these areas and reflects actual experience to date.

NONE

1995-04-01

25

A project management prospective in achieving a sustainable supply chain for timber procurement in Banda Aceh, Indonesia  

Microsoft Academic Search

Purpose The purpose of this paper is to explore the alternative procurement procedures that will address the complexity of issues surrounding timber procurement for housing reconstruction after the Tsunami in Banda Aceh. It reviews construction supply chain management (SCM) and procurement philosophies with a project management (PM) perspective to facilitate the logistics of post-disaster reconstruction. Design\\/methodology\\/approach Based on

Kelvin Zuo; Regan Potangaroa; Suzanne Wilkinson; James O. B. Rotimi

2009-01-01

26

Embodied Design: Constructing Means for Constructing Meaning  

ERIC Educational Resources Information Center

Design-based research studies are conducted as iterative implementation-analysis-modification cycles, in which emerging theoretical models and pedagogically plausible activities are reciprocally tuned toward each other as a means of investigating conjectures pertaining to mechanisms underlying content teaching and learning. Yet this approach, even

Abrahamson, Dor

2009-01-01

27

Procurement Mechanism Design in a Two-Echelon Inventory System with Price-Sensitive Demand  

Microsoft Academic Search

This paper studies a buyer's procurement strategies in a two-stage supply chain with price-sensitive demand. The buyer procures a product from a supplier and then sells to the marketplace. Market demand is stochastic and depends on the buyer's selling price. The supplier's production cost is private information, and the buyer only knows the distribution of the cost. Both the buyer

Fuqiang Zhang

2010-01-01

28

CORRUPTION IN PUBLIC PROCUREMENT AUCTIONS: POSITIVE EQUILIBRIUM ANALYSIS, INCENTIVE MECHANISM DESIGN, AND EMPIRICAL STUDY  

Microsoft Academic Search

We study how poor quality of institution, such as corruption in public procurement auction, could hurt welfare. We show how competition effect could improve the cost-efficiency but not the quality of a public procurement auction with corruption. In fact, no incentive mechanism can be efficient in this auction if qualities are non-contractible. An empirical study suggests that increasing the number

Maria M. Wihardja

2010-01-01

29

Embodied design: constructing means for constructing meaning  

Microsoft Academic Search

Design-based research studies are conducted as iterative implementation-analysis-modification cycles, in which emerging theoretical\\u000a models and pedagogically plausible activities are reciprocally tuned toward each other as a means of investigating conjectures\\u000a pertaining to mechanisms underlying content teaching and learning. Yet this approach, even when resulting in empirically effective\\u000a educational products, remains under-conceptualized as long as researchers cannot be explicit about their

Dor Abrahamson

2009-01-01

30

Using an Energy Performance Based Design-Build Process to Procure a Large Scale Low-Energy Building: Preprint  

SciTech Connect

This paper will review a procurement, acquisition, and contract process of a large-scale replicable net zero energy (ZEB) office building. The owners developed and implemented an energy performance based design-build process to procure a 220,000 ft2 office building with contractual requirements to meet demand side energy and LEED goals. We will outline the key procurement steps needed to ensure achievement of our energy efficiency and ZEB goals. The development of a clear and comprehensive Request for Proposals (RFP) that includes specific and measurable energy use intensity goals is critical to ensure energy goals are met in a cost effective manner. The RFP includes a contractual requirement to meet an absolute demand side energy use requirement of 25 kBtu/ft2, with specific calculation methods on what loads are included, how to normalize the energy goal based on increased space efficiency and data center allocation, specific plug loads and schedules, and calculation details on how to account for energy used from the campus hot and chilled water supply. Additional advantages of integrating energy requirements into this procurement process include leveraging the voluntary incentive program, which is a financial incentive based on how well the owner feels the design-build team is meeting the RFP goals.

Pless, S.; Torcellini, P.; Shelton, D.

2011-05-01

31

NASA procurement report, FY 1993  

NASA Technical Reports Server (NTRS)

Summary data on all NASA procurement actions and detailed information on contracts, grants, agreements, and other procurements over $25,000 awarded by NASA during fiscal year 1993. The dollar value on procurements over $25,000 amounted to 97 percent of the total dollar value of procurement actions completed during fiscal year 1993. However, these larger procurements accounted for only 29 percent of the total actions. Procurement action, as used in this report, means contractural actions to obtain supplies, services, or construction which increase or decrease funds. A procurement action thus may be a new procurement, or modifications such as supplemental agreements, change orders, or terminations to an existing contract that change the total amount of funds obligated. An obligation is a contractual commitment to pay for supplies or services that are specified in the contract.

1993-01-01

32

Procurement under Superfund remedial cooperative agreements  

SciTech Connect

This document provides guidance on procuring services during remedial-response activities under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA), or Superfund, as amended by the Superfund Amendments and Reauthorization Act of 1986 (SARA). The topics covered in the guidance include procurement requirements; procurement of engineering services, including types of services provided; procurement of construction contractors; and subagreement administration.

Not Available

1988-06-01

33

Design as Knowledge Construction: Constructing Knowledge of Design  

ERIC Educational Resources Information Center

In this article, I present a model of instructional design that has evolved from analysis and reflection on the process of designing materials for constructivist learning environments. I observed how we addressed the critical questions for instructional design, comparing the process to traditional instructional design models and to my emerging

Cennamo, Katherine C.

2004-01-01

34

Annual Procurement Report, Fiscal Year 1997  

NASA Technical Reports Server (NTRS)

This report presents summary data on all NASA procurement actions and detailed information on contracts, grants, agreements, and other procurements over $25,000 awarded by NASA during Fiscal Year 1997. The dollar value on procurements over $25,000 amounted to 98 percent of the total dollar value of procurement actions completed during Fiscal Year 1997. However, these larger procurements accounted for only 43 percent of the total actions. Procurement action, as used in this report means contractual actions to obtain supplies, services or construction which increase or decrease funds. A procurement action thus may be a new procurement or modifications such as supplemental agreements, change orders, or termination's to an existing contract that change the total amount of funds obligated. An obligation is a contractual commitment to pay for supplies or services that are specified in the contract. The Annual Procurement Report is also available via the internet on the Procurement homepage.

1997-01-01

35

Study of Subway Station Design and Construction.  

National Technical Information Service (NTIS)

Due to the high cost of urban underground transit construction in recent years, construction practices used in other countries were reviewed to determine if construction methods which are commonly accepted there might be adapted to U.S. practice. Design a...

R. S. O'Neil J. S. Worrell P. Hopkinson R. H. Henderson

1977-01-01

36

Procurement of agricultural products using the CPFR approach  

Microsoft Academic Search

Purpose This paper seeks to apply a framework of collaborative planning, forecasting and replenishment (CPFR) to develop a procurement model for agricultural products. Design\\/methodology\\/approach Considering the biological nature, seasonality and perishable characteristics of agricultural raw materials and products, the paper revises the CPFR reference model. Then, the paper constructs a n-tier CPFR procurement model by extending a two-echelon

Xiao Fang Du; Stephen C. H. Leung; Jin Long Zhang; K. K. Lai

2009-01-01

37

Problem Based Learning in Constructed Textile Design  

ERIC Educational Resources Information Center

Staff observing undergraduate students enrolled on the BSc Hons Textile Design and Design Management programme in The School of Materials, The University of Manchester, identified difficulties with knowledge retention in the area of constructed textile design. Consequently an experimental pilot was carried out in seamless knitwear design using a

Sayer, Kate; Wilson, Jacquie; Challis, Simon

2006-01-01

38

Flat heat pipe design, construction, and analysis  

SciTech Connect

This paper details the design, construction and partial analysis of a low temperature flat heat pipe in order to determine the feasibility of implementing flat heat pipes into thermophotovoltaic (TPV) energy conversion systems.

Voegler, G.; Boughey, B.; Cerza, M.; Lindler, K.W.

1999-08-02

39

Design and Construction of Modern Curved Bridges.  

National Technical Information Service (NTIS)

The overall objectives of this project were to investigate and synthesize state-of-the-art practice for the efficient design and construction of curved bridges, and to identify research needs regarding strength and stability of curved bridges. The project...

J. S. Davidson R. S. Abdalla M. Madhavan

2002-01-01

40

42 CFR 137.377 - Do Federal procurement laws and regulations apply to construction project agreements performed...  

Code of Federal Regulations, 2012 CFR

...laws and regulations apply to construction project agreements performed... TRIBAL SELF-GOVERNANCE Construction Other § 137.377 Do...laws and regulations apply to construction project agreements...

2012-10-01

41

42 CFR 137.377 - Do Federal procurement laws and regulations apply to construction project agreements performed...  

Code of Federal Regulations, 2013 CFR

...laws and regulations apply to construction project agreements performed... TRIBAL SELF-GOVERNANCE Construction Other § 137.377 Do...laws and regulations apply to construction project agreements...

2013-10-01

42

Critical Incidents in the Procurement Process.  

National Technical Information Service (NTIS)

Designed to help federal procurement officers develop a repetoire of communication skills and techniques which will increase their effectiveness as procurement practitioners. Assumes that the users already have a basic knowledge of the negotiated procurem...

1994-01-01

43

Rethinking Educational Design in New School Construction.  

ERIC Educational Resources Information Center

Summarizes a study exploring the extent to which five Virginia school systems took advantage of building a new secondary school to address the need for fundamental educational change. Franklin County took greatest advantage of new construction, designing a technology and career-exploration center. Manassas Park designed a fairly innovative

Duke, Daniel L.; Bradley, William; Butin, Dan; Grogan, Margaret; Gillespie, Monica

1998-01-01

44

Learning through Building: Constructing Knowledge of Design  

ERIC Educational Resources Information Center

Build It Up! is an engaging activity that integrates science with mathematics through a process that encourages problem-solving, principles of design, creativity, and developing a sense of one's community. This activity, aimed at third- and fourth-grade students, allows students to use manipulatives to design, construct, and test buildings they

Deaton, Cynthia C. M.; Chessin, Debby; Coskey, Shawn

2012-01-01

45

49 CFR 192.163 - Compressor stations: Design and construction.  

Code of Federal Regulations, 2013 CFR

... Compressor stations: Design and construction. 192...FEDERAL SAFETY STANDARDS Design of Pipeline Components... Compressor stations: Design and construction. (a) Location of compressor building. Except for a...

2013-10-01

46

ProCure21+ should speed scheme starts.  

PubMed

This October saw the launch of the new ProCure21+ National Framework under which, the Department of Health (DH) team behind the new scheme claims, the NHS can potentially save a further pound 200 million of public money on top of the substantial sums saved under predecessor, ProCure21, via faster, more streamlined procurement, design, planning, and construction, of publicly-funded healthcare schemes. HEJ editor Jonathan Baillie discussed, with the DH's senior responsible officer (SRO) and P21+ team leader Peter Sellars, the background to the new Framework's introduction, the success of its forerunner, and the additional benefits that ProCure21 + (which is backed by organisations incuding HM Treasury, the National Audit Office, and the Office of Government Commerce) should bring to the entire healthcare building supply chain. PMID:21141235

Baillie, Jonathan

2010-11-01

47

Summary data on all NASA procurement actions  

NASA Technical Reports Server (NTRS)

This report presents summary data on all NASA procurement actions and detailed information on contracts, grants, agreements, and other procurements over $25,000 awarded by NASA during Fiscal Year 1992 (FY-92). The dollar value on procurements over $25,000 amounted to 97 percent of the total dollar value of procurement actions completed during FY-92. However, these larger procurements accounted for only 28 percent of the total actions. Procurement action, as used in this report, means contractual actions to obtain supplies, services, or construction which increase or decrease funds. A procurement action thus may be a new procurement or modifications such as supplemental agreements, change orders, or terminations to an existing contract that change the total amount of funds obligated. An obligation is a contractual commitment to pay for supplies or services that are specified in the contract.

1992-01-01

48

Procurement Via Sequential Search  

ERIC Educational Resources Information Center

Numerous design and repair services are nonstandard and have to be tailored to the needs of the individual buyers. Prospective sellers have to make preliminary efforts in order to come up with a plan, and buyers often consult a number of sellers before making a purchase. The literature on procurement studies such situations for the case of a large

Wolinsky, Asher

2005-01-01

49

Classifying and Coding Design and Construction Information  

Microsoft Academic Search

The search for new approaches to design-construction information integration through the use of computer-based systems is invariably hindered by the need to adopt appropriate representational schemes for the design information by several professions architects, structural engineers, service engineers, quantity surveyors, and by small groups of sub-constructors. Lack of developed coding, classifying and catalogue systems has the greatest impact on the

Nabil Dmaidi

2003-01-01

50

46 CFR 58.05-1 - Material, design and construction.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 false Material, design and construction. 58...58.05-1 Material, design and construction. (a) The material, design, construction, workmanship...Bureau of Shipping Rules for Building and Classing Steel...

2013-10-01

51

Design and construction of an impulse turbine  

NASA Astrophysics Data System (ADS)

Impulse turbine has been constructed to be used in the program of Hydraulic Machines, Faculty of Mechanical Engineering at the Universidad Pontificia Bolivariana, sede Bucaramanga. For construction of the impulse turbine (Pelton) detailed plans were drawn up taking into account the design and implementation of the fundamental equations of hydraulic turbomachinery. From the experimental data found maximum mechanical efficiency of 0.6 0.03 for a water flow of 2.1 l/s. The maximum overall efficiency was 0.23 0.02 for a water flow of 0.83 l/s. The design parameter used was a power of 1 kW, as flow regulator built a needle type regulator, which performed well, the model of the bucket or vane is built on a machine type CNC (Computer Numerical Control). For the construction of the impeller and blades was used aluminium because of chemical and physical characteristics and the casing was manufactured in acrylic.

Hernndez, E.

2013-11-01

52

Constructions for Children: Projects in Design Technology.  

ERIC Educational Resources Information Center

This book helps children develop the capability and confidence to design, construct, and evaluate working models. Projects in this book are suitable for students in grades K-4, but may be adapted for older students. Step-by-step explanations for each project are meant as guidelines and completion of the project is not limited to a single correct

Eichelberger, Barbara; Larson, Connie

53

Design and construction of shielded lunar outpost  

SciTech Connect

The construction of an outpost on the Moon in which humans can live and work for periods exceeding six months will require special countermeasures to adapt to the hostile environment present at the lunar surface. Various inherent dangers such as meteoroids, galactic cosmic radiation, solar proton events, and large thermal extremes will drive the design configuration of the outpost. Other considerations such as lunar soil mechanics, equipment performance, mass delivery, risk, reliability, and tele-operability act strongly as constraints that shape and control the design alternatives. Analysis of these fundamental relationships have resulted in lunar civil engineering guidelines, which are unique to this domain, and these in turn have pointed to research areas needing further attention. A preliminary design is presented for a lunar outpost shelter. Additionally, the design methodology is explored, and early enabling technologies are identified to facilitate an understanding of lunar shelter designs from an integrated system standpoint. 17 refs.

Jolly, S.D.; Happel, J.; Sture, S. [Univ. of Colorado, Boulder, CO (United States)

1994-10-01

54

Design and Construction of the Linn Cove Viaduct.  

National Technical Information Service (NTIS)

A documentation of the design and construction of Linn Cove Viaduct. A discussion of the environmental aspects, design specifications, design procedures, and details are included. The environmental restrictions dictated a design and construction methodolo...

J. M. Barker K. Hall G. Klinedinst

1985-01-01

55

The design of quality pricing in procurement settings via technology estimation  

Microsoft Academic Search

This paper shows how to design an optimal payment system for quality in a group of producers. It derives a pricing scheme depending on quality which allows to obtain the first-best. It then illustrates how to implement it empirically by a parametric estimation of the production technology via a restricted production function. The paper designs a pricing scheme for quality,

Angelo M. Zago

56

Price competition in procurement  

SciTech Connect

When creating a private market to provide a public good, government agencies can influence the market`s competitive characteristics. Markets have predictable, but often counterintuitive, behaviors. To succeed in applying available controls, and thereby reduce future costs, agencies must understand the behavior of the market. A model has been constructed to examine some issues in establishing competition for a structure in which there are economies of scale and government is obligated to purchase a fixed total quantity of a good. This model is used to demonstrate a way to estimate the cost savings from several alternative plans for a buyer exploring competitive procurement. The results are not and cannot be accurate for budgeting purposes; rather, they indicate the approximate magnitude of changes in cost that would be associated with changes in the market structure within which procurement occurs.

Keisler, J.M.; Buehring, W.A.

1996-07-01

57

77 FR 3070 - Electric Engineering, Architectural Services, Design Policies and Construction Standards  

Federal Register 2010, 2011, 2012, 2013

...unreimbursed compliance costs on Indian Tribal governments...construction, procurement, engineering services and architectural...recently revised in 1995. Cost increases and inflation...PART 1724--ELECTRIC ENGINEERING, ARCHITECTURAL SERVICES...contracts which will cost $5,000,000 or...

2012-01-23

58

Cryostat design and construction at the IRTF  

NASA Astrophysics Data System (ADS)

Over the past 6 years the instrumentation team at the NASA IR Telescope Facility (IRTF) has designed and built 3 major facility instruments, two cameras and a spectrometer, for use by the IR astronomical community. We will report on many new techniques for cryostat construction that have been developed that deviate from traditional practices. These include aluminum electron beam welded vacuum and cryogenic enclosures, rectangular cryostat formats, use of closed cycle coolers and their performance, use of all aluminum structures, optimization of cryogenic performance without super insulation, activated charcoal getters, and optomechanical mounting. Cryostat performance data and methods for estimating cryostat performance will also be included.

Toomey, Douglas W.; Stahlberger, Werner E.; Watanabe, Darryl

1994-06-01

59

Constructed wetland design: The first generation  

SciTech Connect

A recent inventory, sponsored by the U.S. EPA Risk Reduction Engineering Laboratory in Cincinnati, OH documented the presence of over 150 constructed wetlands systems in the U.S., for the treatment of municipal and industrial wastewaters. The total flow received by these systems is about 400,000 cu m/d (100 mgd). This paper summarizes some of the results from the inventory, including: location, type, vegetation, design flow, loading rates, and costs for wetland systems where this information was available. The paper also discusses some 'lessons learned' from site visits to several of the systems.

Reed, S.C.; Brown, D.S.

1992-01-01

60

Association for Bridge Construction and Design: Bridge Design Tips  

NSDL National Science Digital Library

The Association for Bridge Construction and Design was formed in response to "the bridge crisis" which leaves "only an extremely small percentage of bridges throughout the nation" receiving the attention they need. The goal of the Association is to educate bridge designers, constructors, federal, state, and local officials, as well as the general public in the vital role of safe bridges in our society; to improve the science of bridge design, construction and reconstruction through a professional forum; to provide technical information and assistance; and to educate and encourage public and private authorities to use new and improved techniques for testing and reconstruction. This section of the website provides a basic overview of bridge construction along with related drawings and pictures. By reading through the text and following the links, visitors are taken to a section that discusses ways to calculate the forces in your trusses and then use Java program to design trusses. Links to related articles and websites are available for further reading on the subject of bridge design. Although the website has not been updated recently, the resources are still relevant.

61

Y-12 Sustainable Design Principles for Building Design and Construction  

SciTech Connect

B&W Y-12 is committed to modernizing the Y-12 complex to meet future needs with a sustainable and responsive infrastructure and to integrating sustainability principles and practices into Y-12 work (Y72-001, B&W Y-12 Environmental, Safety and Health Policy). This commitment to sustainability and specifically sustainable design of buildings is also incorporated into Presidential Executive Orders (EO), DOE Orders (DOE O), and goals. Sustainable building design is an approach to design, construct, and operate facilities in an efficient and environmentally sound manner that will produce a healthful, resource-efficient and productive working environment that is inherently protective of the environment. The DOE has established the following 5 Guiding Principles for High Performance Sustainable Building (HPSB), and has issued directives that require Y-12 to incorporate the principles and a number of supporting specific practices and techniques into building design, construction and renovation projects: (1) Employ Integrated Design Principles; (2) Optimize Energy Performance; (3) Protect and Conserve Water; (4) Enhance Indoor Environmental Quality; and (5) Reduce Environmental Impact of Materials. The purpose of this document is to present the required sustainable building principles, practices and techniques, summarize the key drivers for incorporating them into Y-12 projects, and present additional recommendations and resources that can be used to support sustainable buildings to enhance the environmental and economic performance of the Y-12 Complex.

Jackson, J. G.

2008-11-01

62

Detailed project plan: Design, construction and operation of pilot scale Charfuel{reg_sign} process. Topical report, Task 2  

SciTech Connect

In this project, a pilot-scale facility for the flash hydropyrolysis of coal will be designed, built and operated to demonstrate the integrated operation of critical components of the CHARFUEL process and to obtain scale-up data for subsequent demonstration facility for the production of a clean coal slurry fuel. This report presents project plans which includes detailed construction plan; procurement of materials and equipment; construction, test and start-up; potential problems and solutions during operations; data collection and analysis; and feasibility analysis.

Not Available

1993-09-01

63

24 CFR 100.205 - Design and construction requirements.  

Code of Federal Regulations, 2010 CFR

...the following features of adaptable design: (i) An accessible route into...construct a 100 unit condominium apartment building with one elevator. In...compliance with the Fair Housing Act design and construction...

2009-04-01

64

24 CFR 100.205 - Design and construction requirements.  

Code of Federal Regulations, 2010 CFR

...the following features of adaptable design: (i) An accessible route into...construct a 100 unit condominium apartment building with one elevator. In...compliance with the Fair Housing Act design and construction...

2010-04-01

65

39 CFR 776.6 - Design requirements for construction.  

Code of Federal Regulations, 2010 CFR

...2009-07-01 2009-07-01 false Design requirements for construction. 776...ENVIRONMENTAL REGULATIONS FLOODPLAIN AND WETLAND PROCEDURES Floodplain Management § 776.6 Design requirements for construction. If...

2009-07-01

66

39 CFR 776.6 - Design requirements for construction.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false Design requirements for construction. 776...ENVIRONMENTAL REGULATIONS FLOODPLAIN AND WETLAND PROCEDURES Floodplain Management § 776.6 Design requirements for construction. If...

2010-07-01

67

21 CFR 211.42 - Design and construction features.  

Code of Federal Regulations, 2013 CFR

...2013-04-01 2013-04-01 false Design and construction features. 211...PRACTICE FOR FINISHED PHARMACEUTICALS Buildings and Facilities § 211.42 Design and construction features. (a) Any building or buildings used in the...

2013-04-01

68

A production system for design and construction with digital fabrication  

Microsoft Academic Search

A system that guides the physical production of building construction with one digital fabrication device is presented. It is a rule based system for wood frame construction that generates construction information for the production of design artifacts; as design models or full scale buildings. The goal of the research was preparation for an automated system that supports generative design production.

Lawrence Sass

69

24 CFR 941.402 - Project design and construction.  

Code of Federal Regulations, 2013 CFR

...2013-04-01 false Project design and construction. 941.402...Housing and Urban Development OFFICE OF ASSISTANT SECRETARY FOR...Development § 941.402 Project design and construction. (a...may certify that its proposed design and construction plans...

2013-04-01

70

23 CFR 652.13 - Design and construction criteria.  

Code of Federal Regulations, 2013 CFR

...2013-04-01 2013-04-01 false Design and construction criteria...AND PROJECTS § 652.13 Design and construction criteria...and acceptable to the division office of the FHWA, shall be used...standards for the construction and design of bicycle routes....

2013-04-01

71

ORNL engineering design and construction reengineering report  

SciTech Connect

A team composed of individuals representing research and development (R and D) divisions, infrastructure support organizations, and Department of Energy (DOE)-Oak Ridge Operations was chartered to reengineer the engineering, design, and construction (ED and C) process at Oak Ridge National Laboratory (ORNL). The team recognized that ED and C needs of both R and D customers and the ORNL infrastructure program have to be met to maintain a viable and competitive national laboratory. Their goal was to identify and recommend implementable best-in-class ED and C processes that will efficiently and cost-effectively support the ORNL R and D staff by being responsive to their programmatic and infrastructure needs. The team conducted process mapping of current and potential ED and C approaches, developed idealized versions of ED and C processes, and identified potential barriers to an efficient ED and C process. Eight subteams were assigned to gather information and to evaluate the significance of potential barriers through benchmarking, surveys, interviews, and reviews of key topical areas in order to determine whether the perceived barriers were real and important and whether they resulted from laws or regulations over which ORNL has no control.

McNeese, L.E.

1998-01-01

72

Construction of a designer chromosome in tobacco.  

PubMed

The tobacco (Nicotiana tabacum L.) breeding line NC 152 is a doubled haploid that possesses an addition chromosome from N. africana [Merxm. and Buttler]. A gene on this chromosome confers potyvirus resistance (Poty(R)). Our objective was to use the addition chromosome as a base on which to construct a designer chromosome containing a foreign gene linkage package. A mutant dhfr gene conferring resistance to methotrexate (Mtx) was inserted into NC 152-haploid (n = 25) leaf tissue via Agrobacterium tumefaciens-mediated transformation. After chromosome doubling, 135 NC 152dhfr transformants (2n = 50) were pollinated with the potyvirus-susceptible (Poty(S)) cultivar 'McNair 944' (2n = 48). Linkage analysis was performed in the BC1 generation. Two transformants, NC 152dhfr-996 and NC 152dhfr-1517 exhibited complete linkage between Mtx resistance (Mtx(R)) and Poty(R). Segregants from these two transformants which were Mtx(R) and Poty(R) possessed 49 chromosomes, while Mtx sensitive (Mtx(S)) and Poty(S) progeny possessed 48 chromosomes. Eighty percent of the NC 152dhfr transformants transmitted the dhfr gene as one locus. Other foreign genes can be directed to the addition chromosome through transformation followed by selection for single loci with linkage to Poty(R) or Mtx(R). The integrity of both the foreign-gene linkage package and the rest of the genome will be maintained because recombination between the N. africiana and the N. tabacum chromosomes has not been observed. PMID:24190470

Campbell, K G; Wernsman, E A; Fitzmurice, W P; Burns, J A

1994-02-01

73

77 FR 34025 - Procurement List; Addition  

Federal Register 2010, 2011, 2012, 2013

...to the Procurement List: Service Service Type/Locations: Janitorial Services, Engineering Research & Development Center (ERDC), Construction Engineering Research Lab (CERL), 2902 Newmark Drive, Champaign, IL. AT & T Building, 3001 Newmark...

2012-06-08

74

42 CFR 486.320 - Condition: Participation in Organ Procurement and Transplantation Network.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 false Condition: Participation in Organ Procurement and Transplantation Network. 486...Certification and Designation and Conditions for Coverage: Organ Procurement Organizations Organ Procurement Organization Process Performance...

2013-10-01

75

Idaho Procurement Outreach Program.  

National Technical Information Service (NTIS)

The Idaho Procurement Outreach Program contracted for the development of a training program on the Federal procurement system. The training was for economic development district staff so that they could advise local firms on accessing the Federal marketpl...

1986-01-01

76

42 CFR 482.100 - Condition of participation: Organ procurement.  

Code of Federal Regulations, 2013 CFR

... false Condition of participation: Organ procurement. 482.100 Section 482...482.100 Condition of participation: Organ procurement. The transplant center...has a written agreement for the receipt of organs with an OPO designated by the...

2013-10-01

77

76 FR 28333 - Electric Engineering, Architectural Services, Design Policies and Construction Standards  

Federal Register 2010, 2011, 2012, 2013

...construction, procurement, engineering services and architectural...recently revised in 1995. Cost increases and inflation...Utility Construction Costs in order to adjust for...PART 1724--ELECTRIC ENGINEERING, ARCHITECTURAL SERVICES...contracts which will cost $5,000,000 or...

2011-05-17

78

Double envelope house design, construction and operation  

Microsoft Academic Search

The double envelope concept of house construction has received recent interest due to claims of performance not backed by analytical or operational data along with questions in code compliance and building costs associated with the construction. This paper provides a compilation of information from around the country including problems and successes and initial review of technical data associated with instrumented

1980-01-01

79

Sustainable Design Principles in Construction Sector  

Microsoft Academic Search

Building construction affects each four topics of sustainable development that are ecological, economic, social and cultural development. Progress towards the sustainable construction requires novel technologies and policies; not only for the new buildings but also for the refurbishing processes. The industry has taken several steps to improve efficient use of resources, as well as the health and comfort of living

KOUKKARI Heli; BRAGANA Lus

80

A Smart Market for Industrial Procurement with Capacity Constraints  

Microsoft Academic Search

We address the problem of designing multi-item procurement auctions for a monopsonistic buyer in capacity-constrained environments. Using insights from classical auction theory, we construct an optimization-based auction mechanism (smart market) relying on the dynamic resolution of a linear program minimizing the buyer's cost under the suppliers' capacity constraints. Suppliers can modify their offers in response to the optimal allocation corresponding

Jrmie Gallien; Lawrence M. Wein

2005-01-01

81

Constructing Combinatorial Designs by Local Search.  

National Technical Information Service (NTIS)

Probabilistic search heuristics are used in search for covering designs, packing designs and t-designs. Each covering design gives an upper bound for C(sub lambda)(v,m,k,t), the minimum size of a t - (v,m,k,lambda) covering design, while each packing desi...

K. J. Nurmela

1993-01-01

82

24 CFR 100.205 - Design and construction requirements.  

Code of Federal Regulations, 2013 CFR

...2013-04-01 2013-04-01 false Design and construction requirements...Housing and Urban Development OFFICE OF ASSISTANT SECRETARY FOR...of Handicap § 100.205 Design and construction requirements...following features of adaptable design: (i) An accessible...

2013-04-01

83

[Application of subwet model in the design of constructed wetland].  

PubMed

The mechanism of horizontal subsurface-flow constructed wetland (HSSF CW) and its design guidelines were introduced for the design of a constructed wetland. A numerical model Subwet was proposed to aid the design of constructed wetland. The design of a horizontal subsurface-flow wetland was simulated by utilizing Subwet model. The treatment efficiency for a year round operation was obtained from the modelling. The factors which have effects on treatment efficiencies were analyzed and investigated in this study. The recommendations on optimizing and improving the HSSF CW design were provided. This case study of Subwet model demonstrated the applicability of this model in the design of constructed wetland. It can provide theoretical basis for the design of constructed wetland. PMID:24027992

Li, Hui-Feng; Huang, Jin-Hui; Lin, Chao

2013-07-01

84

Mass of materials: the impact of designers on construction ergonomics.  

PubMed

Many construction injuries are musculoskeletal related in the form of sprains and strains arising from the handling of materials, which are specified by designers. The paper presents the results of a study conducted among delegates attending two 'designing for H&S' (DfH&S) seminars using a questionnaire. The salient findings include: the level of knowledge relative to the mass and density of materials is limited; designers generally do not consider the mass and density of materials when designing structures and elements and specifying materials; to a degree designers appreciate that the mass and density of materials impact on construction ergonomics; designers rate their knowledge of the mass and density of materials as limited, and designers appreciate the potential of the consideration of the mass and density of materials to contribute to an improvement in construction ergonomics. Conclusions include: designers lack the requisite knowledge relative to the mass and density of materials; designers are thus precluded from conducting optimum design hazard identification and risk assessments, and tertiary built environment designer education does not enlighten designers relative to construction ergonomics. Recommendations include: tertiary built environment designer education should construction ergonomics; professional associations should raise the level of awareness relative to construction ergonomics, and design practices should include a category 'mass and density of materials' in their practice libraries. PMID:22317574

Smallwood, John

2012-01-01

85

Constructed Wetland Design: the First Generation.  

National Technical Information Service (NTIS)

A recent inventory, sponsored by the U.S. EPA Risk Reduction Engineering Laboratory in Cincinnati, OH documented the presence of over 150 constructed wetlands systems in the U.S., for the treatment of municipal and industrial wastewaters. The total flow r...

S. C. Reed D. S. Brown

1992-01-01

86

Progress in Design and Construction of the Optical Communications Laser Laboratory  

NASA Technical Reports Server (NTRS)

The deployment of advanced hyperspectral imaging and other Earth sensing instruments on board Earth observing satellites is driving the demand for high-data-rate communications. Optical communications meet the required data rates with small, low mass, and low-power communications packages. JPL, as NASA's lead center in optical communications, plans to construct a 1-m Optical Communications Telescope Laboratory (OCTL) at its Table Mountain Facility (TMF) complex in the San Gabriel Mountains of Southern California. The design of the building has been completed, and the construction contractor has been selected. Ground breaking is expected to start at the beginning of the 1999 TMF construction season. A request for proposal (RFP) has been issued for the procurement of the telescope system. Prior to letting the RFP we conducted a request for information with industry for the telescope system. Several vendors responded favorably and provided information on key elements of the proposed design. These inputs were considered in developing the final requirements in the RFP. Keywords: Free space optical communications, lasercom, telescopes, ground stations, adaptive optics, astrometry, Table Mountain Facility

Wilson, K. E.; Britcliffe, M.; Golshan, N.

1999-01-01

87

EIA and green procurement: Opportunities for strengthening their coordination  

SciTech Connect

EIA plays an important role in enhancing the environmental performance of the construction sector. In recent years, the construction sector has been developing green procurement practices. Green procurement is a process that involves the incorporation of environmental requirements during the procurement of services and products. However, discussion on green procurement is rarely seen during the EIA phase. This paper addresses possible opportunities for improving the coordination between EIA and green procurement within the construction sector. The linking of EIA and green procurement has been postulated in the paper as an aid to strengthen the coordination between project planning and implementation. The paper is based on a literature review and is an outcome of an on-going research project concerning EIA and green procurement. This study indicated that it would be appropriate to introduce green procurement during the pre-decision phase of an EIA. In the present study, the opportunities for integrating green procurement at the stage of EIA are associated with the integration of project planning and EIA. Future research should investigate the mechanism through which the link can be established. - Highlights: Black-Right-Pointing-Pointer This paper identifies opportunities to link EIA and green procurement. Black-Right-Pointing-Pointer Pre-decision phase of EIA could be appropriate for planning green procurement. Black-Right-Pointing-Pointer Future research should investigate the mechanism for establishing the link.

Uttam, Kedar, E-mail: kedar@kth.se [Department of Land and Water Resources Engineering, Royal Institute of Technology, Stockholm (Sweden); Faith-Ell, Charlotta, E-mail: charlotta.faith-ell@WSPGroup.se [WSP Sweden (Sweden); Balfors, Berit, E-mail: balfors@kth.se [Department of Land and Water Resources Engineering, Royal Institute of Technology, Stockholm (Sweden)

2012-02-15

88

The Business Case for Sustainable Design and Construction  

SciTech Connect

This paper discusses the challenges associated with developing a business case for sustainable design and construction, provides a framework for evaluating the benefits, and presents some preliminary data on costs of various sustainable design features.

Placet, Marylynn; Dyer, Beverly

2002-11-01

89

Design Step 5: Construct a Prototype  

NSDL National Science Digital Library

Students learn about the manufacturing phase of the engineering design process. They start by building prototypes, which is a special type of model used to test new design ideas. Students gain experience using a variety of simple building materials, such as foam core board, balsa wood, cardstock and hot glue. They present their prototypes to the class for user testing and create prototype iterations based on feedback. (Note: Conduct this activity in the context of a design project that students are working on; this activity is Step 5 in a series of six that guide students through the engineering design loop.)

Integrated Teaching And Learning Program

90

Constructed wetland design: The first generation  

Microsoft Academic Search

A recent inventory, sponsored by the U.S. EPA Risk Reduction Engineering Laboratory in Cincinnati, OH documented the presence of over 150 constructed wetlands systems in the U.S., for the treatment of municipal and industrial wastewaters. The total flow received by these systems is about 400,000 cu m\\/d (100 mgd). This paper summarizes some of the results from the inventory, including:

S. C. Reed; D. S. Brown

1992-01-01

91

Design, Construction and Operation of a Light Gas Gun  

Microsoft Academic Search

In order to conduct Richtmyer-Meshkov instability experiments in shock accelerated thin liquid sheets, a light gas gun was designed and constructed at Marquette University. This paper contains the basic predictions and construction techniques utilized in the design and operation of a double diaphragm light gas gun. The compressed air gas gun is used to accelerate a nylon projectile up to

John Borg

2005-01-01

92

Mobile Libraries, Design and Construction: A Survey of Current Practice.  

ERIC Educational Resources Information Center

Forty-one country libraries in Wales, Scotland and England were surveyed in 1970 in an attempt to establish current practice in the design and construction of mobile libraries. This report is the first step of the Branch and Mobile Libraries Group of the Library Association to establish standards for mobile library design and construction. The

Eastwood, C. R.; And Others

93

Design Methodology of Free Water Surface Constructed Wetlands  

Microsoft Academic Search

Simple criteria, guidelines and models are established for free water surface (FWS) constructed wetland selection and preliminary sizing. The analysis employs models for FWS constructed wetland design, considering simultaneously the removal requirements and the hydraulics of the system. On the basis of these models, a step-by-step methodology is developed outlining the design procedure for new and performance evaluation for existing

Maria A. Economopoulou; Vassilios A. Tsihrintzis

2004-01-01

94

Impact of Overhang Construction on Girder Design.  

National Technical Information Service (NTIS)

Economical constraints on the design of bridges usually necessitate the use of as few girders as possible across the bridge width. The girders are typically uniformly spaced transversely with the deck extending past the fascia girders, thereby resulting i...

J. Fasl M. Engelhardt R. Klingner S. Yang T. Helwig

2010-01-01

95

Graphic Interface Design and Deductive Proof Construction.  

ERIC Educational Resources Information Center

Presents graphic means of representing deductive proofs in a sentential system of symbolic logic. Provides students with performance data following a description of the rule set and the working backwards method. Shows that one interface design is superior to others in respect to working backwards. Draws some general conclusions concerning the

Croy, Marvin J.

1999-01-01

96

Design, construction, operation and evaluation of a prototype culm combustion boiler/heater unit  

NASA Astrophysics Data System (ADS)

The objectives of the program as well as the technical progress and problem areas encountered are presented. The progress on drawing preparation and procurement activity is discussed. Processing of the construction bid package and awarding of the contract is discussed. The prototype plant site was cleared and leveled, and boiler concrete foundations were installed. Stone roadways were completed.

1980-08-01

97

Hydrologic model for design and constructed wetlands  

Microsoft Academic Search

The Trinity River Mitigation Bank was proposed to develop and use a mature, contiguous, diverse riparian corridor along the\\u000a West Fork of the Trinity River near Dallas, Texas, USA. In the proposed wetland design, water would be diverted from Walker\\u000a Creek as necessary to maintain wetland function. Therefore, assessment of the magnitude and continuity of the flow from Walker\\u000a Creek

Jeffrey G. Arnold; Peter M. Allen; David S. Morgan

2001-01-01

98

A Computerized Tomography Phantom: Design and Construction  

NASA Astrophysics Data System (ADS)

A phantom for performance evaluation and quality assurance of CT scanners was designed and built in agreement with quality control requirements established by the Mexican Regulations (NOM-158-SSA1-1996). Phantom materials were chosen after experimental determination of their Hounsfield units. The phantom allows to perform the following tests: calibration, constancy and uniformity of the CT number, CT number dependence on the reconstruction algorithm, high and low contrast resolution, slice thickness and coincidence of the slice with the light system for patient alignment. We present and discuss the results of these test applied to two CT scanners.

Ruiz-Trejo, Csar G.; Chvez-Arenas, Cenobio; Mora, Luis A.

2004-09-01

99

Some reflections on designing construction kits for kids  

Microsoft Academic Search

In this paper, we present ten guiding principles for designing construction kits for kids, informed by our experiences over the past two decades:* Design for Designers* Low Floor and Wide Walls* Make Powerful Ideas Salient -- Not Forced* Support Many Paths, Many Styles* Make it as Simple as Possible -- and Maybe Even Simpler* Choose Black Boxes Carefully* A Little

Mitchel Resnick; Brian Silverman

2005-01-01

100

Benchmarking organ procurement organizations: a national study.  

PubMed Central

OBJECTIVE: An exploratory examination of the technical efficiency of organ procurement organizations (OPOs) relative to optimal patterns of production in the population of OPOs in the United States. DATA SOURCES: A composite data set with the OPO as the unit of analysis, constructed from a 1995 national survey of OPOs (n = 64), plus secondary data from the Association of Organ Procurement Organizations and the United Network for Organ Sharing. STUDY DESIGN: The study uses data envelopment analysis (DEA) to evaluate the technical efficiency of all OPOs. PRINCIPAL FINDINGS: Overall, six of the 22 larger OPOs (27 percent) are classified as inefficient, while 23 of the 42 smaller OPOs (55 percent) are classified as inefficient. Efficient OPOs recover significantly more kidneys and extrarenal organs; have higher operating expenses; and have more referrals, donors, extrarenal transplants, and kidney transplants. The quantities of hospital development personnel and other personnel, and formalization of hospital development activities in both small and large OPOs, do not significantly differ. CONCLUSIONS: Indications that larger OPOs are able to operate more efficiently relative to their peers suggest that smaller OPOs are more likely to benefit from technical assistance. More detailed information on the activities of OPO staff would help pinpoint activities that can increase OPO efficiency and referrals, and potentially improve outcomes for large numbers of patients awaiting transplants.

Ozcan, Y A; Begun, J W; McKinney, M M

1999-01-01

101

Medium Voltage Switchgear: Trends in Design and Construction Technology.  

National Technical Information Service (NTIS)

Substations construction technologies are reviewed with particular emphasis given to the improved design of switching apparatus and their safety charcateristics. Non-conventional use of SF(sub 6) is discussed with regard to requirements set by internation...

G. Catenacci

1986-01-01

102

An Evaluation of Bridge Approach Design and Construction Techniques.  

National Technical Information Service (NTIS)

An evaluation of bridge approach design and construction techniques was conducted. During the first phase of the project, bridge engineers were interviewed and a literature search was conducted. This resulted in a compendium of current knowledge and resea...

D. H. Timmerman

1976-01-01

103

39 CFR 776.6 - Design requirements for construction.  

Code of Federal Regulations, 2013 CFR

...POSTAL SERVICE ENVIRONMENTAL REGULATIONS FLOODPLAIN AND WETLAND PROCEDURES Floodplain Management § 776.6 Design requirements...are located in, or support development in a floodplain, construction must conform, at a...

2013-07-01

104

Laboratory Design, Construction, and Renovation: Participants, Process, and Product  

NSDL National Science Digital Library

Laboratory facilities are complex, technically sophisticated, and mechanically intensive structures that are expensive to build and to maintain. Hundreds of decisions must be made before and during new construction or renovation that will determine how successfully the facility will function when completed and how successfully it can be maintained once put into service. This book provides guidance on effective approaches for building laboratory facilities in the chemical and biochemical sciences. It contains both basic and laboratory-specific information addressed to the user community-the scientists and administrators who contract with design and construction experts. The book will also be important to the design and construction communities-the architects, laboratory designers, and engineers who will design the facility and the construction personnel who will build it-to help them communicate with the scientific community for whom they build laboratory facilities.

National Research Council (National Research Council Committee on Scientific and Humane Issues in the Use of Random Source Dogs and Cats for Research; Na)

2000-01-01

105

DESIGN AND CONSTRUCTION OF COVERS FOR SOLID WASTE LANDFILLS  

EPA Science Inventory

The report provides guidelines in selection, design, and construction of cover for management of municipal, industrial, and hazardous solid wastes (with the exception of radioactive waste). Natural soils as cover are the principal subject; however, synthetic membranes, chemicals,...

106

Design, Construction and Testing of an Autonomous Mine Hunter.  

National Technical Information Service (NTIS)

Landmine detection is a immense technological problem. A small low power metal detector would find application in concert with other search technologies. A detection circuit was designed and constructed consisting of a search coil and a CMOS exclusive OR ...

J. A. Schmidt

1997-01-01

107

REQUIREMENTS FOR HAZARDOUS WASTE LANDFILL DESIGN, CONSTRUCTION AND CLOSURE  

EPA Science Inventory

This publication contains edited versions of the material presented at ten Technology Transfer seminars conducted in 1988 on this subject. Sections are included on design of clay and flexible membrane liners, leachate collector systems, and landfill covers. Construction quality a...

108

DESIGN, CONSTRUCTION, AND EVALUATION OF A CHAMBER FOR AEROBIOLOGY  

EPA Science Inventory

A chamber was designed and constructed for aeromicrobiology applications. An ultraviolet (UV) radiation source was incorporated to sterilize the chamber between trials. Twelve bacterial species originally isolated from air samples and obtained from the American Type Culture Colle...

109

Design and Construction of "Synthetic Species"  

PubMed Central

Synthetic biology is an area of biological research that combines science and engineering. Here, I merge the principles of synthetic biology and regulatory evolution to create a new species with a minimal set of known elements. Using preexisting transgenes and recessive mutations of Drosophila melanogaster, a transgenic population arises with small eyes and a different venation pattern that fulfils the criteria of a new species according to Mayrs Biological Species Concept. The population described here is the first transgenic organism that cannot hybridize with the original wild type population but remains fertile when crossed with other identical transgenic animals. I therefore propose the term synthetic species to distinguish it from natural species, not only because it has been created by genetic manipulation, but also because it may never be able to survive outside the laboratory environment. The use of genetic engineering to design artificial species barriers could help us understand natural speciation and may have practical applications. For instance, the transition from transgenic organisms towards synthetic species could constitute a safety mechanism to avoid the hybridization of genetically modified animals with wild type populations, preserving biodiversity.

Moreno, Eduardo

2012-01-01

110

Architects' perspectives on construction waste reduction by design  

SciTech Connect

The construction, demolition and excavation waste arising in England was estimated at 91 million tonnes in 2003. The current thinking on construction waste minimisation is heavily focussed on several issues relating to physical construction waste and recycling guides. Indeed, much had been published on ways to improve on-site waste management and recycling activities but very few attempts made to address the effect of design practices on waste generation. However, there is a consensus in the literature that the architect has a decisive role to play in helping to reduce waste by focussing on designing out waste. This paper examines previous studies on architects' approach towards construction waste minimisation; and by means of a postal questionnaire, investigates: the origins of waste; waste minimisation design practices in the UK; and responsibilities and barriers within the UK architectural profession. The findings reveal that waste management is not a priority in the design process. Additionally, the architects seemed to take the view that waste is mainly produced during site operations and rarely generated during the design stages; however, about one-third of construction waste could essentially arise from design decisions. Results also indicate that a number of constraints, namely: lack of interest from clients; attitudes towards waste minimisation; and training all act as disincentives to a proactive and sustainable implementation of waste reduction strategies during the design process.

Osmani, M. [Department of Civil and Building Engineering, Loughborough University, Loughborough, Leicestershire LE11 3TU (United Kingdom)], E-mail: M.Osmani@lboro.ac.uk; Glass, J.; Price, A.D.F. [Department of Civil and Building Engineering, Loughborough University, Loughborough, Leicestershire LE11 3TU (United Kingdom)

2008-07-01

111

The constructal law and the evolution of design in nature.  

PubMed

The constructal law accounts for the universal phenomenon of generation and evolution of design (configuration, shape, structure, pattern, rhythm). This phenomenon is observed across the board, in animate, inanimate and human systems. The constructal law states the time direction of the evolutionary design phenomenon. It defines the concept of design evolution in physics. Along with the first and second law, the constructal law elevates thermodynamics to a science of systems with configuration. In this article we review the more recent work of our group, with emphasis on the advances made with the constructal law in the natural sciences. Highlighted are the oneness of animate and inanimate designs, the origin of finite-size organs on animals and vehicles, the flow of stresses as the generator of design in solid structures (skeletons, vegetation), the universality and rigidity of hierarchy in all flow systems, and the global design of human flows. Noteworthy is the tapestry of distributed energy systems, which balances nodes of production with networks of distribution on the landscape, and serves as key to energy sustainability and empowerment. At the global level, the constructal law accounts for the geography and design of human movement, wealth and communications. PMID:21683663

Bejan, Adrian; Lorente, Sylvie

2011-10-01

112

Design of an autonomous Lunar construction utility vehicle  

NASA Technical Reports Server (NTRS)

In order to prepare a site for a manned lunar base, an autonomously operated construction vehicle is necessary. A Lunar Construction Utility Vehicle (LCUV), which utilizes interchangeable construction implements, was designed conceptually. Some elements of the machine were studied in greater detail. Design of an elastic loop track system has advanced to the testing stage. A standard coupling device was designed to insure a proper connection between the different construction tools and the LCUV. Autonomous control of the track drive motors was simulated successfully through the use of a joystick and computer interface. A study of hydrogen-oxygen fuel cells has produced estimates of reactant and product size requirements and identified multi-layer insulation techniques. Research on a 100 kW heat rejection system has determined that it is necessary to house a radiator panel on a utility trailer. The impact of a 720 hr use cycle has produced a very large logistical support lien which requires further study.

Ash, Robert L.; Chew, Mason; Dixon, Iain (editor)

1990-01-01

113

The design and construction of the CAD-1 airship  

NASA Technical Reports Server (NTRS)

The background history, design philosophy and Computer application as related to the design of the envelope shape, stress calculations and flight trajectories of the CAD-1 airship, now under construction by Canadian Airship Development Corporation are reported. A three-phase proposal for future development of larger cargo carrying airships is included.

Kleiner, H. J.; Schneider, R.; Duncan, J. L.

1975-01-01

114

Nanotechnology Buildings: Design and Construction of Advanced Technology Facilities  

NSDL National Science Digital Library

NANObuildings.com provides technical information about advanced technology facilities. It includes relevant information about workshops, projects and other web links covering the design and construction of such projects. Simple in design, but providing a great deal of information, the site is easily accessible for almost all audiences. Overall, this is a great site for any person searching for information about nanotechnology.

2008-11-19

115

Design and Construction Guidance for Community Shelters. FEMA 361.  

ERIC Educational Resources Information Center

This manual presents guidance to engineers, architects, building officials, and prospective shelter owners concerning the design and construction of community shelters that will provide protection during tornado and hurricane events. The manual covers two types of community shelters: stand-alone shelters designed to withstand high winds and the

Federal Emergency Management Agency, Washington, DC.

116

Design, construction, and evaluation of an omegatron mass spectrometer  

Microsoft Academic Search

An omegatron mass spectrometer was designed and constructed using an electromagnet that was obsolete to nuclear magnetic resonance (NMR) investigations. The design of the analytical region differs from any published and consists of ``long'' rectangular plates with the detector positioned in the plane midway between them. There are no end plates or guard rings. In contrast to previous instruments, superior

Peter Vjekoslav Amerl

1998-01-01

117

Design and Construction of a Modular Lunar Base  

Microsoft Academic Search

DESIGN and CONSTRUCTION of a MODULAR LUNAR BASE Purpose: The Lunar Base Design Study is a concept for the return of humans from 2020 to the end of the century. Structure: The proposed lunar station is built of 6 cylindrical modules, each one 17 m long and 6 m in diameter. Each module is made of aluminium sheets and trapezoidal

Dipl. Ing Werner Grandl

2010-01-01

118

Design, construction, and field mapping of the HISTRAP prototype dipole  

SciTech Connect

HISTRAP is a proposed 2.67 T-m synchrotron-cooler-storage ring having eight 45/degree/, C-design dipole magnets. A prototype dipole has been designed, fabricated, and mapped. The magnet design utilizes curved and angled coil ends to compensate for end effects in the field. Construction of the prototype dipole has been completed by the FNAL magnet factory. The magnetic field has been mapped using a Hall-effect probe afixed to a newly constructed, PC-based, horizontal positioning system. Results of the field mapping are presented. 6 refs., 7 figs., 1 tabs.

Tatum, B.A.; Dowling, D.T.; Lord, R.S.; Mosko, S.W.; Olsen, D.K.

1989-01-01

119

41 CFR 102-76.15 - What are design and construction services?  

Code of Federal Regulations, 2013 CFR

...2013-07-01 false What are design and construction services? 102-76.15 Section 102-76...REGULATION REAL PROPERTY 76-DESIGN AND CONSTRUCTION Design and Construction § 102-76.15 What are design and...

2013-07-01

120

Principles of Good School Building Design. School Buildings Planning, Design, and Construction Series No. 3.  

ERIC Educational Resources Information Center

A school construction guide offers key personnel in school development projects information on the complex task of master planning and construction of schools in Australia. This chapter of the guide provides advice on school building design issues, such as the fundamentals of good design and designs that accommodate change, issues affecting

Odell, John H.

121

Design, construction, operation and evaluation of a Prototype Culm Combustion Boiler/Heater Unit. Quarterly technical progress report, July 1-September 30, 1980  

SciTech Connect

This report provides a summary of the work performed on the Prototype Culm Combustion Boiler/Heater Unit, Phase I - Engineering Design and Analysis and Phase II - Prototype Plant Construction during the period July 1, 1980, through September 30, 1980. The objectives of the program as well as the technical progress and problem areas encountered are presented. The final detail design effort was completed. Progress on procurement activity authorized by full Phase II release on March 20, 1980, is discussed. The construction bid package was completed, approved by DOE and issued for quotation. Construction quotations were received and bids tabulated resulting in the selection and recommendation to DOE of a construction contractor. F.W. George, subcontractor to E. Keeler Co. for boiler erection, has begun erection of the boiler supporting structure.

Not Available

1981-01-01

122

Design of an autonomous lunar construction utility vehicle  

NASA Technical Reports Server (NTRS)

In order to prepare a site for a lunar base, an autonomously operated construction vehicle is necessary. Discussed here is a Lunar Construction Utility Vehicle (LCUV), which uses interchangeable construction implements. Design of an elastic loop track system has advanced to the testing stage. A standard coupling device has been designed to insure a proper connection between the different construction tools and the LCUV. Autonomous control of the track drive motors was simulated successfully through the use of a joystick and a computer interface. A study of hydrogen-oxygen fuel cells produced estimates of reactant and product requirements and identified multilayer insulation needs. Research on the 100-kW heat rejection system determined that it is necessary to transport the radiator panel on a utility trailer. Extensive logistical support for the 720 hour use cycle requires further study.

1990-01-01

123

Design and construction of the astronautics refrigerator magnet  

NASA Astrophysics Data System (ADS)

This document reports on the design, construction, and testing of a 7-Tesla, 4-in. bore superconducting magnet for use in the Astronautics Refrigerator Experiment. The magnet is a single-strand, layer-wound, potted solenoid wound with Formvar-insulated SSC strands. The magnet was constructed by American Magnetics, Inc. of Oak Ridge and has been installed in the Astronautics Refrigerator Experiment at the Astronautics Technology Center in Madison, Wisconsin.

Dresner, L.

1994-05-01

124

The Advanced Technology Solar Telescope: design and early construction  

NASA Astrophysics Data System (ADS)

The National Solar Observatorys (NSO) Advanced Technology Solar Telescope (ATST) is the first large U.S. solar telescope accessible to the worldwide solar physics community to be constructed in more than 30 years. The 4-meter diameter facility will operate over a broad wavelength range (0.35 to 28 ?m ), employing adaptive optics systems to achieve diffraction limited imaging and resolve features approximately 20 km on the Sun; the key observational parameters (collecting area, spatial resolution, spectral coverage, polarization accuracy, low scattered light) enable resolution of the theoretically-predicted, fine-scale magnetic features and their dynamics which modulate the radiative output of the sun and drive the release of magnetic energy from the Suns atmosphere in the form of flares and coronal mass ejections. In 2010, the ATST received a significant fraction of its funding for construction. In the subsequent two years, the project has hired staff and opened an office on Maui. A number of large industrial contracts have been placed throughout the world to complete the detailed designs and begin constructing the major telescope subsystems. These contracts have included the site development, AandE designs, mirrors, polishing, optic support assemblies, telescope mount and coud rotator structures, enclosure, thermal and mechanical systems, and high-level software and controls. In addition, design development work on the instrument suite has undergone significant progress; this has included the completion of preliminary design reviews (PDR) for all five facility instruments. Permitting required for physically starting construction on the mountaintop of Haleakal?, Maui has also progressed. This paper will review the ATST goals and specifications, describe each of the major subsystems under construction, and review the contracts and lessons learned during the contracting and early construction phases. Schedules for site construction, key factory testing of major subsystems, and integration, test and commissioning activities will also be discussed.

McMullin, Joseph P.; Rimmele, Thomas R.; Keil, Stephen L.; Warner, Mark; Barden, Samuel; Bulau, Scott; Craig, Simon; Goodrich, Bret; Hansen, Eric; Hegwer, Steve; Hubbard, Robert; McBride, William; Shimko, Steve; Wger, Friedrich; Ditsler, Jennifer

2012-09-01

125

FUNDAMENTAL INVESTIGATION ON CONSTRUCTED WETLAND DESIGN FOR WASTE WATER PURIFICATION  

NASA Astrophysics Data System (ADS)

In designing a constructed wetland for water purification, a homogeneous vegetation bed is often adopted in order to prevent short circuit which reduces the efficiency of SS trapping. However, vegetation naturally becomes inhomogeneous under the action of water flow, causing unexpected short circuit. This paper discusses a possibility to design a channel for a "stable short circuit", which distributes SS to vegetation zones by large horizontal eddies between the channel and vegetation zones. A series of numerical experiments show that even one slightly bended channel can distribute a high ratio of SS supplied through the channel to vegetation zones with the aid of horizontal eddies. This fact suggests that hydraulic design of artificial short circuit can be an alternative strategy for design of constructed wetlands.

Ishikawa, Tadaharu; Gao, Shuang

126

46 CFR 195.11-10 - Design and construction of portable vans.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 false Design and construction of portable...Tanks § 195.11-10 Design and construction of portable vans. (a) The design and material selection...of escape, arrangement, interior construction, and...

2013-10-01

127

Transitioning from conceptual design to construction performance specification  

NASA Astrophysics Data System (ADS)

On successful completion of a conceptual design review by a funding agency or customer, there is a transition phase before construction contracts can be placed. The nature of this transition phase depends on the Project's approach to construction and the particular subsystem being considered. There are generically two approaches; project retention of design authority and issuance of build to print contracts, or issuance of subsystem performance specifications with controlled interfaces. This paper relates to the latter where a proof of concept (conceptual or reference design) is translated into performance based sub-system specifications for competitive tender. This translation is not a straightforward process and there are a number of different issues to consider in the process. This paper deals with primarily the Telescope mount and Enclosure subsystems. The main subjects considered in this paper are: Typical status of design at Conceptual Design Review compared with the desired status of Specifications and Interface Control Documents at Request for Quotation. Options for capture and tracking of system requirements flow down from science / operating requirements and sub-system requirements, and functional requirements derived from reference design. Requirements that may come specifically from the contracting approach. Methods for effective use of reference design work without compromising a performance based specification. Management of project team's expectation relating to design. Effects on cost estimates from reference design to actual. This paper is based on experience and lessons learned through this process on both the VISTA and the ATST projects.

Jeffers, Paul; Warner, Mark; Craig, Simon; Hubbard, Robert; Marshall, Heather

2012-09-01

128

Design and construction techniques for permeable reactive barriers  

Microsoft Academic Search

Adequate site characterization, bench-scale column testing, and hydrogeologic modeling formed the basis for the design and construction of permeable reactive barriers for groundwater remediation at various sites, such as Dover Air Force Base, DE and Naval Air Station, Moffett Field, CA. Dissolved chlorinated solvents, such as perchloroethylene (PCE) and trichloroethylene (TCE), have been the focus at many sites because the

Arun R. Gavaskar

1999-01-01

129

Experience with the design and construction of huge telescope pedestals  

Microsoft Academic Search

The projects for Extreme Large Telescopes are getting now into sizes, on which the radio telescope engineers are used since 50 years. Obviously, for the radio telescopes the requirements (accuracies, sensitivity of equipment against environmental influences etc.) are far less than for optical telescopes. But: there are a lot of design and construction features, which have similarities, and where existing

Hans J. Kaercher

2004-01-01

130

Design and construction of mini ice storage air conditioning system  

Microsoft Academic Search

To switch load duration curve and to decrease demand charge, a 20000 BTU ice storage air conditioning system used for room size 44 m2 is designed and constructed. Working time of ice storage system is divided into 2 processes. The first process is freeze mode, ice on coil, which is only produced by R22. This process takes approximately 11 hours,

P. Thiravasin; J. Sinthusonthichat; S. Potivejkul

1999-01-01

131

Power Systems Development Facility: Design, Construction, and Commissioning Status  

SciTech Connect

This paper will provide an introduction to the Power Systems Development Facility, a Department of Energy sponsored, engineering scale demonstration of two advanced coal-fired power technologies; and discuss current status of design, construction and commissioning of this facility. 28 viewgraphs, including 2 figs.

Powell, C.A.; Vimalchand; Hendrix, H.L.; Honeycut, P.M.

1996-12-31

132

Design and Construction of an Autonomous Fire Fighting Robot  

Microsoft Academic Search

The use of robots in situations that can be too dangerous for human intervention is growing. One such use is the deployment of robots for fire fighting. This paper is based on the construction of a robot for a contest aimed at simulating this real-world scenario. The paper will discuss the design of a fully autonomous fire fighting robot which

K. Altaf; A. Akbar; B. Ijaz

2007-01-01

133

The design and construction of magnetic fields for plasma research  

Microsoft Academic Search

The main problems arising during the design and construction of medium ; size air-core electromagnets are discussed. The basic equations are given ; relating magnetic field strength, magnetic field rise time, power input, ; electrodyramic forces, and thermal conditions, e.g., allowable temperature rise ; to give the detalied dimensions required for the electrical conductor and the ; cooling annuli. The

Michal Cryzinski; Marek Sadowski

1962-01-01

134

Design, construction and tests of the ICARUS T600 detector  

Microsoft Academic Search

We have constructed and operated the ICARUS T600 liquid argon (LAr) time projection chamber (TPC). The ICARUS T600 detector is the largest LAr TPC ever built, with a size of about 500tons of fully imaging mass. The design and assembly of the detector relied on industrial support and represents the applications of concepts matured in laboratory tests to the kton

S. Amerio; S. Amoruso; M. Antonello; P. Aprili; M. Armenante; F. Arneodo; A. Badertscher; B. Baiboussinov; M. Baldo Ceolin; G. Battistoni; B. Bekman; P. Benetti; E. Bernardini; M. Bischofberger; A. Borio di Tigliole; R. Brunetti; R. Bruzzese; A. Bueno; E. Calligarich; M. Campanelli; F. Carbonara; C. Carpanese; D. Cavalli; F. Cavanna; P. Cennini; S. Centro; A. Cesana; C. Chen; D. Chen; Y. Chen; R. Cid; D. B. Cline; K. Cieslik; A. G. Cocco; D. Corti; Z. Dai; C. De Vecchi; A. Di Cicco; R. Dolfini; A. Ereditato; M. Felcini; A. Ferella; A. Ferrari; F. Ferri; G. Fiorillo; S. Galli; D. Garcia Gamez; Y. Ge; D. Gibin; A. Gigli Berzolari; I. Gil-Botella; K. Graczyk; L. Grandi; A. Guglielmi; K. He; J. Holeczek; X. Huang; C. Juszczak; D. Kielczewska; J. Kisiel; T. Kozlowski; H. Kuna-Ciskal; M. Laffranchi; J. ?agoda; Z. Li; B. Lisowski; F. Lu; J. Ma; G. Mangano; G. Mannocchi; M. Markiewicz; A. Martinez de la Ossa; C. Matthey; F. Mauri; D. Mazza; A. J. Melgarejo; A. Menegolli; G. Meng; M. Messina; J. W. Mietelski; C. Montanari; S. Muraro; S. Navas-Concha; M. Nicoletto; J. Nowak; G. Nurzia; C. Osuna; S. Otwinowski; Q. Ouyang; O. Palamara; D. Pascoli; L. Periale; G. Piano Mortari; A. Piazzoli; P. Picchi; F. Pietropaolo; W. Plchlopek; M. Prata; T. Rancati; A. Rappoldi; G. L. Raselli; J. Rico; E. Rondio; M. Rossella; A. Rubbia; C. Rubbia; P. Sala; R. Santorelli; D. Scannicchio; E. Segreto; Y. Seo; F. Sergiampietri; J. Sobczyk; N. Spinelli; J. Stepaniak; R. Sulej; M. Szeptycka; M. Szarska; M. Terrani; G. Trinchero; R. Velotta; S. Ventura; C. Vignoli; H. Wang; X. Wang; J. Woo; G. Xu; Z. Xu; X. Yang; A. Zalewska; J. Zalipska; C. Zhang; Q. Zhang; S. Zhen; W. Zipper

2004-01-01

135

Design and construction of a multipurpose wideband anechoic chamber  

Microsoft Academic Search

An electromagnetic anechoic chamber has been constructed at the Multimedia University. It is designed to operate over a very wide frequency range from 30 MHz through 18 GHz. It can be used for electromagnetic compatibility (EMC) tests, antenna measurements, radar cross section (RCS) measurements, testing RF transceivers, calibration of scatterometers, and other electromagnetic research experiments. The geometry of the chamber

B. K. Chung; H. T. Chuah

2003-01-01

136

Design and construction of the astronautics refrigerator magnet.  

National Technical Information Service (NTIS)

This document reports on the design, construction, and testing of a 7-Tesla, 4-in. bore superconducting magnet for use in the Astronautics Refrigerator Experiment. The magnet is a single-strand, layer-wound, potted solenoid wound with Formvar-insulated SS...

L. Dresner

1994-01-01

137

The design and construction of a solar electric commuter car  

Microsoft Academic Search

A description is presented of the design and construction of a solar electric commuter car-a practical commuting vehicle whose primary energy source is solar. A Sebring fiberglass kit car on a Volkswagen Beetle chassis was chosen for conversion to an electric vehicle with solar recharging capability. The 1600 lb two-passenger vehicle was equipped with a 25 hp peak DC brushless

P. Singh; P. von Glahn; W. Koffke

1991-01-01

138

Cross-national research on contractor evaluation procedures in public works procurement  

NASA Astrophysics Data System (ADS)

Contractor evaluation methods in Japan's public works procurement, beginning with construction business licensure, going through biennial preliminary firm rating, up to project-by-project prequalification and comprehensive point rating, were developed during the period when public works were mostly procured through designated competitive bidding. It is essential to focus attention on contractor evaluation methods for introducing different types of procurement procedures which enhance the use of technological capabilities held by private businesses. An overall review of contractor evaluation procedures should be conducted in view of the present situation, where the open competitive bidding has become mainly used in combination with comprehensive evaluation, as well as to allow for further diversification of procurement methods. In Western countries, improvements have been made for the past several years in contractor evaluation procedures with more emphasis on "Value for Money." Advanced efforts made by these countries will be useful as a reference for overhauling Japan's contractor evaluation system. This study conducts a comparative review of contractor evaluation procedures for public procurement in Western countries such as the United States, the United Kingdom and France by identifying similarities and differences between those of Japan and the above mentioned countries. This reveals that a contractor's technical or professional ability is looked at separately from its economic and financial standing in those countries studied, and there is no case like Japan in which those two factors are integrated into one for evaluation.

Kinoshita, Seiya; Sato, Naoyoshi; Matsumoto, Naoya

139

Terrorism and its Impact on the Construction Industry.  

National Technical Information Service (NTIS)

This paper focuses on the impact that the 9/11 terrorist attacks have had on the U.S. construction industry. The paper breaks the construction project life cycle down into three phases -- Initiation, Design, and Procurement/Construction -- and examines th...

S. Kosnick

2005-01-01

140

23 CFR 172.5 - Methods of procurement.  

Code of Federal Regulations, 2013 CFR

...PAYMENT PROCEDURES ADMINISTRATION OF ENGINEERING AND DESIGN RELATED SERVICE CONTRACTS...of Federal-aid highway contracts for engineering and design related services shall...competitive negotiation for the procurement of engineering and design related services...

2013-04-01

141

Numerical modelling: a tool for better constructed wetland design?  

PubMed

There is a need for a simplified computer-based design tool for subsurface flow constructed wetlands (CWs) which is based on process-based numerical models. Parameters of existing design guidelines and rules have been derived from experiments under specific conditions. Therefore designing CWs using these parameters is limited to these conditions (i.e., temperature, wastewater composition, filter material, etc.). Process-based numerical models describe the main processes in CWs in detail. If the design of CWs is based on these models it will be possible to design CWs for a variety of different boundary conditions and therefore the main limitation of existing design guidelines and rules could be overcome. The use of process-based models is currently limited mainly due to their complexity in structure and use. To make numerical modelling a useful and applicable tool for design, a simplified computer-based design tool that does not require special knowledge of numerical modelling is needed. Additionally, simple models for pre- and post-treatments are also required. Besides allowing designs for various boundary conditions, design tools based on process-based models can also predict the dynamic behaviour of the designed system thus showing e.g., the higher robustness of CWs against fluctuating inflows and peak loads compared to other treatment solutions. Such a tool could increase the quality of CW design and the acceptance and use of CW simulation in practice. PMID:22053452

Langergraber, Guenter

2011-01-01

142

ENCOAL mild coal gasification project public design and construction report  

SciTech Connect

This Public Design Report describes the 1000 ton per day ENCOAL mild coal gasification demonstration plant now in operation at the Buckskin Mine near Gillette, Wyoming. The objective of the project is to demonstrate that the proprietary Liquids From Coal (LFC) technology can reliably and economically convert low Btu PRB coal into a superior, high-Btu solid fuel (PDF), and an environmentally attractive low-sulfur liquid fuel (CDL). The Project`s plans also call for the production of sufficient quantities of PDF and CDL to permit utility companies to carry out full scale burn tests. While some process as well as mechanical design was done in 1988, the continuous design effort was started in July 1990. Civil construction was started in October 1990; mechanical erection began in May 1991. Virtually all of the planned design work was completed by July 1991. Most major construction was complete by April 1992 followed by plant testing and commissioning. Plant operation began in late May 1992. This report covers both the detailed design and initial construction aspects of the Project.

NONE

1994-12-01

143

Mass customization in power plant design and construction  

SciTech Connect

This article describes how Bechtel`s PowerLine concept brings economies of scale and the fundamentals of mass production to plant design and construction. Privatization, globalization and commoditization will shape the power industry for decades to come. Diverse as these forces are, they are bound together by a common business imperative: the need for low-cost, high-quality energy that provides operators and developers with the great potential for a return on equity. One solution to this challenge is predicated chiefly on the design and construction of reliable, low-cost generating plants--the concept of mass customization. More than simply standardization, mass customization achieves the economies of mass production but also provides the flexibility needed by individual plants and owners. This process reaps the benefits of standardization and, at the same time, permits a degree of customization so the design will meet the differing needs of independents, utilities and other power producers.

Choi, K.C.; Jarboe, T.B.

1996-01-01

144

Improving Procurement through Process Redesign.  

National Technical Information Service (NTIS)

Advanced information technologies permit the gathering and coordination of procurement information through electronic data bases, networks, and workstations. However, before these technologies can be applied, procurement processes should be redesigned to ...

D. J. Drake

1992-01-01

145

Benchmarking in public procurement  

Microsoft Academic Search

Purpose This paper investigates the technique of benchmarking to improve the quality of the public procurement process and discusses the importance of benchmarking to overcome perceived weaknesses with these processes. This is followed by a case study of Sri-Lanka, exploring the difficulties faced by public sector employees in separating the daily business of government from the political influences of

Jeanette Raymond

2008-01-01

146

Experience with the design and construction of huge telescope pedestals  

NASA Astrophysics Data System (ADS)

The projects for Extreme Large Telescopes are getting now into sizes, on which the radio telescope engineers are used since 50 years. Obviously, for the radio telescopes the requirements (accuracies, sensitivity of equipment against environmental influences etc.) are far less than for optical telescopes. But: there are a lot of design and construction features, which have similarities, and where existing experience can be transferred. The interesting areas are: manufacturing, erection of stiffness driven space trusses (alidade and backup structure), main axes mechanisms (elevation, azimuth), environmental influences (temperature, wind), structural dynamics and active deformation control, management and cost issues. The paper reports on latest experience with the design and construction of the 50 m Large Millimeter Telescope LMT/GTM in Mexico and the 64 m Sardinia Radio Telescope SRT.

Kaercher, Hans J.

2004-07-01

147

Airborne electromagnetic and magnetic surveys for long tunnel construction design  

Microsoft Academic Search

Airborne geophysical surveys enable us to clarify three-dimensional subsurface structures in large and inaccessible areas. Therefore, they have been used recently to investigate large-scale landslides and volcanoes, as well as in mineral and hydrocarbon explorations. This paper describes a geological assessment for tunnel design and construction using helicopter-borne geophysical surveys.Airborne electromagnetic surveys using a grounded electric dipole source and magnetic

Kenji Okazaki; Toru Mogi; Mitsuru Utsugi; Yoshihiko Ito; Hideki Kunishima; Takashi Yamazaki; Yukitsugu Takahashi; Takeshi Hashimoto; Yusuke Ymamaya; Hisatoshi Ito; Hideshi Kaieda; Kazuhiro Tsukuda; Youichi Yuuki; Akira Jomori

148

General design, construction, and operation guidelines: Constructed wetlands wastewater treatment systems for small users including individual residences.  

National Technical Information Service (NTIS)

A constructed wetlands system (CW) treats wastewater through natural water quality improvement processes (physical, chemical and biological) that occur in natural wetlands. Proper design, construction and operation of a CW optimize the processes. Treatmen...

G. R. Steiner J. T. Watson K. D. Choate

1991-01-01

149

Design and Construction of Passively Articulated Ornithopter Wings  

NASA Astrophysics Data System (ADS)

Birds, bats, and insects are able to fly efficiently and execute impressive in-flight, landing, and takeoff maneuvers with apparent ease through actuation of their highly articulated wings. This contrasts the approach used to enable the flight of comparatively simple man-made rotary and fixed wing aircraft. The complex aerodynamics underlying flapping-based flight pose an everpresent challenge to scientists hoping to reveal the secrets of animal flight. Despite this, interest in engineering aircraft on the bird and insect scale is higher than ever. Herein, I present my attempt to design and construct bioinspired passively articulated ornithopter wings. Two different hinge-based joint design concepts are investigated across several design iterations. The advantages and disadvantages of each implementation are discussed. Finally, the necessary instrumentation to analyze the performance of the wings is designed and fabricated, followed by testing of the wings.

Mastro, Alexander Timothy

150

29 CFR 1926.66 - Criteria for design and construction of spray booths.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 false Criteria for design and construction of spray booths. 1926.66 Section... SAFETY AND HEALTH REGULATIONS FOR CONSTRUCTION Occupational Health and Environmental...1926.66 Criteria for design and construction of spray booths. (a)...

2013-07-01

151

46 CFR 160.133-23 - Procedure for approval of design, material, or construction change.  

Code of Federal Regulations, 2013 CFR

...for approval of design, material, or construction change. 160.133-23 Section...SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND...for approval of design, material, or construction change. (a) Each change in...

2013-10-01

152

46 CFR 160.156-23 - Procedure for approval of design, material, or construction change.  

Code of Federal Regulations, 2013 CFR

...for approval of design, material, or construction change. 160.156-23 Section...SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND...for approval of design, material, or construction change. (a) Each change in...

2013-10-01

153

Lessons learned in procuring a laser optical disk system  

SciTech Connect

This paper describes an effort to procure an optical disk storage system for the Hanford Radiological Records Program. The project manager evaluated technologies available and compatible to the existing computers. A feasibility study was initiated that incorporates special needs and system costs. A requirements analysis, system design, vendor selection and system implementation and testing are documented. Recommendations applicable to procurement in general are given.

Berndt, V.L.

1993-05-01

154

Design and Construction of the PT-1 Prototype Plasmoid Thruster  

NASA Astrophysics Data System (ADS)

The design and construction of a plasmoid thruster prototype is described. This thruster operates by expelling pre-detached plasmoids at high velocities. These plasmoids are field reversed configuration plasmas which are formed by reversing a magnetic flux frozen in an ionized gas inside a theta-pinch coil. The pinch coil is a unique multi-turn, multi-lead design chosen for optimization of inductance and field uniformity. The coil is wound around an alumina ceramic core and the operation of the thruster is completely electrode-less. The design of this thruster follows a series of experiments at NASA MSFC based on a single turn theta-pinch coil called the ``Plasmoid Thruster Experiment.'' Key issues are addressed which affect the efficiency of the PT-1. Testing of this device will begin in FY06 at the NASA MSFC Propulsion Research Center.

Eskridge, Richard H.; Fimognari, Peter J.; Martin, Adam K.; Lee, Michael H.

2006-01-01

155

Design and construction of the Discovery Channel Telescope enclosure  

NASA Astrophysics Data System (ADS)

The Discovery Channel Telescope (DCT) is a project of Lowell Observatory, undertaken with support from Discovery Communications, Inc., to design and construct a 4-meter class telescope and support facility on a site approximately 40 miles southeast of Flagstaff, Arizona. The Discovery Channel Telescope Enclosure was completed in November, 2009. The DCT Enclosure is an octagonal steel structure with insulated composite panel skin. The structure rotates on sixteen compliant bogie assemblies attached to the stationary facility. The shutter is composed of two independently actuated, bi-parting structures that provide a viewing aperture. To improve seeing, the skin is covered with adhesive aluminum foil tape and the enclosed observing area is passively ventilated via rollup doors. The observing area can also be actively ventilated using a downdraft fan, and there are provisions for upgrades to active air conditioning. The enclosure also includes operational equipment such as a bridge crane, personnel lift, and access platforms. This paper discusses some of the design trades as well as the construction challenges and lessons learned by the DCT Project, its designer M3 Engineering and Technology Corporation (M3), and its general contractor, Building and Engineering Contractors, Southwest (BEC Southwest).

Marshall, Heather K.; Teran, Jose U.; Bond, Kevin

2010-07-01

156

Design and construction of a prototype ACTS propagation terminal  

NASA Astrophysics Data System (ADS)

The launch schedule for the Advanced Communication Technology Satellite (ACTS) spacecraft did not leave sufficient time for completion of the prototype ACTS Propagation Terminals (APT) prior to initiation of the APT production phase. In fact, the approach used was to construct and test all subassemblies of the terminal with special emphasis on the technically challenging portions. These include the RF front end that uses a state-of-the-art down converter which integrates a low noise amplifier, mixer, post amplifier, filter, and local oscillator port frequency doubler into a single small package. In addition, a new digital receiver that uses the latest DSP technology was developed. Both of these subassemblies were thoroughly tested. The highest risk technology in the APT program was the digital receiver. Several candidate algorithms and DSP chips were investigated early on, primarily under JPL sponsorship. A receiver was constructed based on Texas Instruments chip. The final prototype digital receiver was one based on an Analog Devices chip. The design and test results are documented in a report prepared for this grant. A Primary Design Review (PDR) was conducted 30 May 1991, and a Critical Design Review was held 7 Jul. 1992. Final complete documentation of the APT's will appear in the form of three reports: a hardware description report, a report on the data collection code (ACTS VIEW), and a report on the preprocessing code.

Stutzman, Warren; Pratt, Tim; Nunnally, Charles; Nealy, Randall; Remaklus, Will; Sylvester, Bill; Predoehl, Andrew; Gaff, Doug

1993-04-01

157

Design and construction of a prototype ACTS propagation terminal  

NASA Technical Reports Server (NTRS)

The launch schedule for the Advanced Communication Technology Satellite (ACTS) spacecraft did not leave sufficient time for completion of the prototype ACTS Propagation Terminals (APT) prior to initiation of the APT production phase. In fact, the approach used was to construct and test all subassemblies of the terminal with special emphasis on the technically challenging portions. These include the RF front end that uses a state-of-the-art down converter which integrates a low noise amplifier, mixer, post amplifier, filter, and local oscillator port frequency doubler into a single small package. In addition, a new digital receiver that uses the latest DSP technology was developed. Both of these subassemblies were thoroughly tested. The highest risk technology in the APT program was the digital receiver. Several candidate algorithms and DSP chips were investigated early on, primarily under JPL sponsorship. A receiver was constructed based on Texas Instruments chip. The final prototype digital receiver was one based on an Analog Devices chip. The design and test results are documented in a report prepared for this grant. A Primary Design Review (PDR) was conducted 30 May 1991, and a Critical Design Review was held 7 Jul. 1992. Final complete documentation of the APT's will appear in the form of three reports: a hardware description report, a report on the data collection code (ACTS VIEW), and a report on the preprocessing code.

Stutzman, Warren; Pratt, Tim; Nunnally, Charles; Nealy, Randall; Remaklus, Will; Sylvester, Bill; Predoehl, Andrew; Gaff, Doug

1993-01-01

158

36 CFR 223.38 - Standards for road design and construction.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Standards for road design and construction. 223.38...Provisions § 223.38 Standards for road design and construction. Road...the sale contract provides for road design standards in excess of those...

2010-07-01

159

36 CFR 223.38 - Standards for road design and construction.  

Code of Federal Regulations, 2010 CFR

...2009-07-01 false Standards for road design and construction. 223.38...Provisions § 223.38 Standards for road design and construction. Road...the sale contract provides for road design standards in excess of those...

2009-07-01

160

DESIGN MANUAL: CONSTRUCTED WETLANDS AND AQUATIC PLANT SYSTEMS FOR MUNICIPAL WASTEWATER TREATMENT  

EPA Science Inventory

This publication is a compilation of all available design and operating criteria for the various constructed wetlands and aquatic plant systems. opics discussed include: aquatic treatment systems, environmental and health considerations, design of constructed wetlands, design of ...

161

40 CFR 125.99 - What are approved design and construction technologies?  

Code of Federal Regulations, 2012 CFR

...What are approved design and construction technologies? 125.99 Section 125.99 Protection...What are approved design and construction technologies? (a) The following technologies constitute approved design and...

2012-07-01

162

40 CFR 125.99 - What are approved design and construction technologies?  

Code of Federal Regulations, 2011 CFR

...What are approved design and construction technologies? 125.99 Section 125.99 Protection...What are approved design and construction technologies? (a) The following technologies constitute approved design and...

2011-07-01

163

40 CFR 125.99 - What are approved design and construction technologies?  

Code of Federal Regulations, 2010 CFR

...What are approved design and construction technologies? 125.99 Section 125.99 Protection...What are approved design and construction technologies? (a) The following technologies constitute approved design and...

2010-07-01

164

49 CFR 195.132 - Design and construction of aboveground breakout tanks.  

Code of Federal Regulations, 2013 CFR

...3 2013-10-01 2013-10-01 false Design and construction of aboveground breakout tanks...TRANSPORTATION OF HAZARDOUS LIQUIDS BY PIPELINE Design Requirements § 195.132 Design and construction of aboveground breakout...

2013-10-01

165

7 CFR 1792.103 - Seismic design and construction standards for new buildings.  

Code of Federal Regulations, 2010 CFR

... false Seismic design and construction standards for new buildings. 1792.103 Section...standards for new buildings. (a) In the design and construction of...ASCE) 7, Minimum Design Loads for Buildings and Other...

2010-01-01

166

7 CFR 1792.103 - Seismic design and construction standards for new buildings.  

Code of Federal Regulations, 2010 CFR

... false Seismic design and construction standards for new buildings. 1792.103 Section...standards for new buildings. (a) In the design and construction of...ASCE) 7, Minimum Design Loads for Buildings and Other...

2009-01-01

167

The Gemini Planet Imager: from science to design to construction  

NASA Astrophysics Data System (ADS)

The Gemini Planet Imager (GPI) is a facility instrument under construction for the 8-m Gemini South telescope. It combines a 1500 subaperture AO system using a MEMS deformable mirror, an apodized-pupil Lyot coronagraph, a high-accuracy IR interferometer calibration system, and a near-infrared integral field spectrograph to allow detection and characterization of self-luminous extrasolar planets at planet/star contrast ratios of 10-7. I will discuss the evolution from science requirements through modeling to the final detailed design, provide an overview of the subsystems and show models of the instrument's predicted performance.

Macintosh, Bruce A.; Graham, James R.; Palmer, David W.; Doyon, Ren; Dunn, Jennifer; Gavel, Donald T.; Larkin, James; Oppenheimer, Ben; Saddlemyer, Les; Sivaramakrishnan, Anand; Wallace, J. Kent; Bauman, Brian; Erickson, Darren A.; Marois, Christian; Poyneer, Lisa A.; Soummer, Remi

2008-07-01

168

The design, construction and performance of the MICE target  

NASA Astrophysics Data System (ADS)

The pion-production target that serves the MICE Muon Beam consists of a titanium cylinder that is dipped into the halo of the ISIS proton beam. The design and construction of the MICE target system are described along with the quality-assurance procedures, electromagnetic drive and control systems, the readout electronics, and the data-acquisition system. The performance of the target is presented together with the particle rates delivered to the MICE Muon Beam. Finally, the beam loss in ISIS generated by the operation of the target is evaluated as a function of the particle rate, and the operating parameters of the target are derived.

Booth, C. N.; Hodgson, P.; Howlett, L.; Nicholson, R.; Overton, E.; Robinson, M.; Smith, P. J.; Apollonio, M.; Barber, G.; Dobbs, A.; Leaver, J.; Long, K. R.; Shepherd, B.; Adams, D.; Capocci, E.; McCarron, E.; Tarrant, J.

2013-03-01

169

Composites design manual  

SciTech Connect

Composites -- Design Manual presents the information one needs to know in order to facilitate the design, and procurement of FRP, Graphite and Aramid Composites. The chapters include over 50 tables and 50 figures as well as examples to make life easier for those involved with the practicalities of composites. Everything from properties and processes to design and construction analysis are covered.

Quinn, J.A. (Royal Academy of Engineers, London (United Kingdom))

1999-01-01

170

Boat Building Design and Construction Techniques in the Architectural Design Studio.  

ERIC Educational Resources Information Center

Describes a model boat building project for architectural design studios. Working from traditional sailboat designs, students study the "lines" drawings of boats, make full-size drawings from scale drawings, and then construct model wooden boats. Available from Carfax Publishing Company, P.O. Box 25, Abindgon, Oxfordshire OX14 1RW England. (AM)

Smith, Richard A.

1982-01-01

171

How to procure cloud computing solutions: a manageable value network approach  

Microsoft Academic Search

Cloud computing research is currently dominated by technology and business-value driven approaches. Recently, the design of aligned procurement processes for cloud solutions in value networks has entered the scientific discourse. Especially in value networks, the implementation of procurement processes for cloud solutions, consisting of infrastructure-, platform - and software components, requires a holistic consideration of both procurement operations and the

Stefan Bensch

2011-01-01

172

Constructal design of pedestrian evacuation from an area  

NASA Astrophysics Data System (ADS)

Pedestrian movement occurs in evolutionary patterns the effect of which is to facilitate the access of people into and out of living spaces (areas, volumes). In this paper, we rely on the philosophy of Constructal design as applied physics, in order to uncover two fundamental features of evolutionary design for pedestrian evacuation from rectangular areas (e.g., lecture halls with seated occupants). First, the paper shows analytically that the aspect ratio of the floor area can be selected such that the total evacuation time is minimal. Second, the shape of the floor area of each aisle can be tapered such that the total evacuation time is decreased further. These two architectural features are confirmed by means of extensive and systematic numerical simulations of pedestrian evacuation, by using two numerical packages (Simulex and FDS + Evac).

Lui, C. H.; Fong, N. K.; Lorente, S.; Bejan, A.; Chow, W. K.

2013-01-01

173

Design and Construction of a Scaled Whirl Tower Facility  

NASA Astrophysics Data System (ADS)

Experimental development of helicopter rotors requires centrifugal testing before entry into a wind tunnel or flight test campaign. This centrifugal testing is performed on test rigs called whirl towers. These facilities are very rare, in fact there were none available in Canada at the time of writing this thesis, but they are very valuable experimental research tools. This thesis describes the design and construction of a whirl tower facility for the centrifugal testing of scaled helicopter rotors with actively controlled systems for reducing vibration. First, the trade-offs between the desired capabilities for the facility to be designed are reviewed, leading to the identification of a set of design requirements. Following this, various concepts for the drive system, frame, data acquisition, and safety infrastructure are proposed. From these, a final design is assembled, whose main advantage is its flexibility and robustness for developmental research. The whirl tower is capable of testing single or multi-bladed rotors (up to four blades), with blades between 1.0 and 1.6 m radius, up to 1,800 RPM frequency with no 'dead zones'. The whirl tower is equipped with a 60 HP, 575 V, AC motor, with flexible coupling and direct drive to the scaled rotor hub. The facility also features a digital telemetry system, slip rings for power and signal transmission for active control, interchangeable rotor heads with variable root distance, and a containment wall for protection from possible rotor blade failures. The manufacturing and construction of the facility, as well as its installation at the National Research Council in Ottawa, is described in detail.

Pickard, John Alexander

174

Design and construction of a precision cartilage reshaping device  

NASA Astrophysics Data System (ADS)

This manuscript describes the design and construction of device which controls the laser reshaping of cartilage specimens using dynamic measurements of changes in tissue optical properties and surface temperature as feedback control variables. Diffusely transmitted light from an amplitude modulated diode laser ((lambda) equals670 nm, 5 mW) was collected using a multimode optical fiber and measured with a silicon photoreceiver using lock in detection method. Surface temperature was measured with a thermopile. A jig was constructed to maintain porcine nasal septal cartilage specimens (25.0 x 10.0 x 2.0 mm) in deformation during photothermal heating. The jig and specimen were translated relative to a fixed laser spot using two motors controlled using LabView software and a motion control card. Software allowed implementation of several different modes of operation including closed-loop feedback control or open- loop (user defined) conditions. This device has allowed the systematic evaluation of the effect of laser dosimetry on the reshaping process. Design considerations are discussed along with suggestions for clinical device development.

Burden, Matt A.; Johansen, Elizabeth; Wong, Brian J.

2001-05-01

175

Design, construction, and performance of a post type cryogenic support  

SciTech Connect

A support member for superconducting magnets and other cryogenic devices has been designed, fabricated and structurally and thermally evaluated. The member is a cylindrical post constructed with fiber reinforced plastic (FRP) tubing and having metallic heat intercepts and end connections. All FRP to metal connections are made by mechanical shrink fitting and do not employ adhesives or fasteners. The post can operate in tension, compression and flexure or in combinations of these loads. The details of the design and construction are enumerated. Structural performance has been measured in tension and compression at 80 and 300 K and in flexure at 300 K. Creep effects on the shrink fit joint reliability are being evaluated. Thermal performance has been measured for a post with ends at 4.5 and 300 K and with heat intercepts at 10 and 80 K. The measured performance has been compared with the analytical predictions. Full scale, working, prototype posts have been successfully utilized in several model cryostats for the Superconducting Super Collider dipole magnet development program.

Niemann, R.C.; Gonczy, J.D.; Nicol, J.D.; Otavka, J.G.; Roman, M.W.

1985-09-01

176

Constructing Design Rainfall Hyetographs Using Trivariate Plackett Family of Copulas  

NASA Astrophysics Data System (ADS)

Multivariate stochastic analyses via copulas are receiving increasing attention in the hydrologic literatures due to the flexibility they offer in construction of joint distributions with various combinations of marginals and dependence structures. Among the many choices of dependence models, the Frank family of Archimedean copulas has been popular for many bivariate problems. However, there are limitations to extending the application of copulas to trivariate and higher dimensions, namely difficulties in preserving all lower-level mutual dependencies and the compatibility problem in multivariate statistics. In this study, we examine a non- Archimedean copula from the Plackett family that is founded on the theory of constant cross product ratio. It is found that the Plackett family not only performs well at the bivariate level, but also allows a hierarchical multivariate stochastic analysis where the lower-level dependencies between variables can be fully preserved. The feasible range of Plackett parameters that would result in valid (compatible) 3-copulas is determined numerically. This trivariate Plackett family of copulas is then applied to construct the design rainfall hyetograph for several stations in Indiana where the estimated parameters lie in the feasible region. Based on a given design rainfall depth and duration, conditional expectations of rainfall features such as expected peak intensity, time to peak, and percentage cumulative rainfall at 10% cumulative time increments are estimated. The results of this study suggest that the constant cross product ratio theory can be extended to continuous random variables, and that it provides further flexibility for multivariate stochastic analyses of rainfall.

Kao, S.; Govindaraju, R. S.

2007-12-01

177

Open system environment procurement  

NASA Technical Reports Server (NTRS)

Relationships between the request for procurement (RFP) process and open system environment (OSE) standards are described. A guide was prepared to help Federal agency personnel overcome problems in writing an adequate statement of work and developing realistic evaluation criteria when transitioning to an OSE. The guide contains appropriate decision points and transition strategies for developing applications that are affordable, scalable and interoperable across a broad range of computing environments. While useful, the guide does not eliminate the requirement that agencies posses in-depth expertise in software development, communications, and database technology in order to evaluate open systems.

Fisher, Gary

1994-01-01

178

7 CFR 1792.103 - Seismic design and construction standards for new buildings.  

Code of Federal Regulations, 2010 CFR

...Seismic Safety of Federally Assisted New Building Construction § 1792.103 Seismic design and...appropriate for federally assisted new building construction: (1) 2003 NFPA 5000 Building Construction and Safety Code. Copies of...

2012-01-01

179

7 CFR 1792.103 - Seismic design and construction standards for new buildings.  

Code of Federal Regulations, 2010 CFR

...Seismic Safety of Federally Assisted New Building Construction § 1792.103 Seismic design and...appropriate for federally assisted new building construction: (1) 2003 NFPA 5000 Building Construction and Safety Code. Copies of...

2007-01-01

180

7 CFR 1792.103 - Seismic design and construction standards for new buildings.  

Code of Federal Regulations, 2010 CFR

...false Seismic design and construction standards for new buildings. 1792.103 Section...Federally Assisted New Building Construction § 1792.103 Seismic...federally assisted new building construction: (1) 1997...

2006-01-01

181

7 CFR 1792.103 - Seismic design and construction standards for new buildings.  

Code of Federal Regulations, 2010 CFR

...Seismic Safety of Federally Assisted New Building Construction § 1792.103 Seismic design and...appropriate for federally assisted new building construction: (1) 2003 NFPA 5000 Building Construction and Safety Code. Copies of...

2011-01-01

182

7 CFR 1792.103 - Seismic design and construction standards for new buildings.  

Code of Federal Regulations, 2010 CFR

...false Seismic design and construction standards for new buildings. 1792.103 Section...Federally Assisted New Building Construction § 1792.103 Seismic...federally assisted new building construction: (1) 1997...

2005-01-01

183

7 CFR 1792.103 - Seismic design and construction standards for new buildings.  

Code of Federal Regulations, 2010 CFR

...Seismic Safety of Federally Assisted New Building Construction § 1792.103 Seismic design and...appropriate for federally assisted new building construction: (1) 2003 NFPA 5000 Building Construction and Safety Code. Copies of...

2008-01-01

184

Productivity improvement in the Indonesian construction industry  

Microsoft Academic Search

A sectoral analysis of the construction industry in Indonesia indicates that it has grown considerably in recent years. Efforts are under way to adapt to this new situation, including exploring ways to increase productivity. A survey of top contractors indicates that certain functions including procurement practices, cost control, scheduling and management integration need much improvement. A survey of top design

David Arditi; Krishna Mochtar

1996-01-01

185

Design, construction and evaluation of solarized airlift tubular photobioreactor  

NASA Astrophysics Data System (ADS)

An innovative photobioreactor is developed for growing algae in simulated conditions. The proposed design comprises of a continuous tubular irradiance loop and air induced liquid circulation with gas separation through air lift device. The unique features of air lift system are to ensure the shear free circulation of sensitive algal culture and induce light/dark cycles to the photosynthetic micro-organisms. The design strategy employs to model and construct a 20-liter laboratory scale unit using Boro-silicate glass tubing. The material is selected to ensure maximum photon transmission. All components of the device are designed to have flexibility to be replaced with an alternative design, providing fair chance of modification for future investigators. The principles of fluid mechanics are applied to describe geometrical attributes of the air lift system. Combination of LEDs and Florescent tube lights (Warm white) were used to illuminate the photosynthesis reaction area providing a possibility to control both illumination duration and light intensity. 200 Watt Solar PV system is designed to power up the device which included air pump (100 Watt) and illumination system (100 Watt). Algal strain Chlorella sp was inoculated in photobioreactor which was sparged with air and carbon dioxide. The growth was sustained in the batch mode with daily monitoring of temperature, pH and biomass concentration. The novel photobioreactor recorded a maximum experimental average yield of 0.65 g/l.day (11.3 g/m2.day) as compared to theoretical modeled yield of 0.82 g/l.day (14.26 g/m2.day), suggesting the device can be efficiently and cost-effectively employed in the production of algal biomass for biofuels, concomitantly mitigating CO2.

Bahadur, A.; Zubair, M.; Khan, M. B.

2013-06-01

186

Design and construction of multigenic constructs for plant biotechnology using the GoldenBraid cloning strategy.  

PubMed

GoldenBraid (GB) is an iterative and standardized DNA assembling system specially designed for Multigene Engineering in Plant Synthetic Biology. GB is based on restriction-ligation reactions using type IIS restriction enzymes. GB comprises a collection of standard DNA pieces named "GB parts" and a set of destination plasmids (pDGBs) that incorporate the multipartite assembly of standardized DNA parts. GB reactions are extremely efficient: two transcriptional units (TUs) can be assembled from several basic GBparts in one T-DNA less than 24 h. Moreover, larger assemblies comprising 4-5 TUs are routinely built in less than 2 working weeks. Here we provide a detailed view of the GB methodology. As a practical example, a Bimolecular Fluorescence Complementation construct comprising four TUs in a 12 kb DNA fragment is presented. PMID:24395362

Sarrion-Perdigones, Alejandro; Palaci, Jorge; Granell, Antonio; Orzaez, Diego

2014-01-01

187

Constructal method to optimize solar thermochemical reactor design  

SciTech Connect

The objective of this study is the geometrical optimization of a thermochemical reactor, which works simultaneously as solar collector and reactor. The heat (concentrated solar radiation) is supplied on a small peripheral surface and has to be dispersed in the entire reactive volume in order to activate the reaction all over the material. A similarity between this study and the point to volume problem analyzed by the constructal approach (Bejan, 2000) is evident. This approach was successfully applied to several domains, for example for the coupled mass and conductive heat transfer (Azoumah et al., 2004). Focusing on solar reactors, this work aims to apply constructal analysis to coupled conductive and radiative heat transfer. As a first step, the chemical reaction is represented by a uniform heat sink inside the material. The objective is to optimize the reactor geometry in order to maximize its efficiency. By using some hypothesis, a simplified solution is found. A parametric study provides the influence of different technical and operating parameters on the maximal efficiency and on the optimal shape. Different reactor designs (filled cylinder, cavity and honeycomb reactors) are compared, in order to determine the most efficient structure according to the operating conditions. Finally, these results are compared with a CFD model in order to validate the assumptions. (author)

Tescari, S.; Mazet, N. [PROMES-CNRS, Rambla de la Thermodynamique, Tecnosud, 66100 Perpignan (France); Neveu, P. [PROMES-CNRS, Rambla de la Thermodynamique, Tecnosud, 66100 Perpignan (France); Universite de Perpignan Via Domitia, 52 Avenue Paul Alduy, 66860 Perpignan (France)

2010-09-15

188

The BaBar superconducting coil: design, construction and test  

NASA Astrophysics Data System (ADS)

The BABAR Detector, located in the PEP-II B-Factory at the Stanford Linear Accelerator Center, includes a large 1.5 Tesla superconducting solenoid, 2.8 m bore and length 3.7 m. The two layer solenoid is wound with an aluminum stabilized conductor which is graded axially to produce a +/- 3% field uniformity in the tracking region. This paper summarizes the 3 year design, fabrication and testing program of the superconducting solenoid. The work was carried out by an international collaboration between INFN, LLNL and SLAC. The coil was constructed by Ansaldo Energia. Critical current measurements of the superconducting strand, cable and conductor, cool-down, operation with the thermo-siphon cooling, fast and slow discharges, and magnetic forces are discussed in detail.

Bell, R. A.; Berndt, M.; Burgess, W.; Craddock, W.; Dormicchi, O.; Fabbricatore, P.; Farinon, S.; Keller, L.; Moreschi, P.; Musenich, R.; O'Connor, T. G.; Penco, R.; Priano, C.; Shen, S.; Valente, P.

1999-08-01

189

White Oak Creek embayment sediment retention structure design and construction  

SciTech Connect

White Oak Creek is the major surface water drainage throughout the Department of Energy (DOE) Oak Ridge National Laboratory (ORNL). Samples taken from the lower portion of the creek revealed high levels of Cesium 137 and lower level of Cobalt 60 in near surface sediment. Other contaminants present in the sediment included: lead, mercury, chromium, and PCBs. In October 1990, DOE, US Environmental Protection Agency (EPA), and Tennessee Department of Environment and Conservation (TDEC) agreed to initiate a time critical removal action in accordance with the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) to prevent the transport of the contaminated sediments into the Clinch River system. This paper discusses the environmental, regulatory, design, and construction issues that were encountered in conducting the remediation work.

Van Hoesen, S.D.; Kimmell, B.L. [Oak Ridge National Lab., TN (United States); Page, D.G.; Wilkerson, R.B. [MK-Ferguson of Oak Ridge Co., TN (United States); Hudson, G.R. [USDOE Oak Ridge Field Office, TN (United States); Kauschinger, J.L. [Ground Engineering Services, Alpharetta, GA (United States); Zocolla, M. [Nashville District, US Army Corps of Engineers, Nashville, TN (United States)

1994-12-31

190

Using geotechnical engineering in pipeline design, construction. Part 3 (conclusion)  

SciTech Connect

The final part of this series extends the discussion of geotechnical engineering to the stress effects of backfill and soil cover on the pipeline. Some specific points covered include calculation of the pipe-soil interaction force and delineation of the backfill zone. For a given pipe-soil interaction force, an increase in the depth of soil cover is the most practical method of achieving the higher backfill resistance. A compacted sand backfill can be replaced by a pumpable cement-sand slurry behind pipe bends for construction expediency without any loss in the backfill strength. Anchor blocks designed on the basis of the maximum passive pressure determined by conventional theories may experience intolerable movements.

Ahmed, S.; McMickle, R.W.

1981-05-01

191

Heavy ion fusion (HIF) impulse injector design, construction, and checkout  

SciTech Connect

The following report describes the design, construction, and checkout of a high-voltage (HV) impulser built for the heavy ion fusion (HIF) project. The purpose of this impulser is to provide an adjustable diode voltage source of sufficient quality and level to allow the optimization of beam transport and accelerator sections of HIF. An elegant, low-impedance, high-energy storage capacitor circuit has been selected for this application. A retrofit to the diode region has been included to provide additional beam stability and a controlled rise time. The critical part of this circuit that is common to all candidates is the impedance matching component. The following report provides a description of the implemented circuit, the basic circuit variables for wave shaping, component screening techniques, resulting operating parameters, diode modifications, operating considerations, and fault protection.

Wilson, M. J., LLNL

1998-05-04

192

49 CFR 192.476 - Internal corrosion control: Design and construction of transmission line.  

Code of Federal Regulations, 2010 CFR

...2009-10-01 2009-10-01 false Internal corrosion control: Design and construction of transmission...FEDERAL SAFETY STANDARDS Requirements for Corrosion Control § 192.476 Internal corrosion control: Design and construction of...

2009-10-01

193

49 CFR 192.476 - Internal corrosion control: Design and construction of transmission line.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Internal corrosion control: Design and construction of transmission...FEDERAL SAFETY STANDARDS Requirements for Corrosion Control § 192.476 Internal corrosion control: Design and construction of...

2013-10-01

194

49 CFR 192.476 - Internal corrosion control: Design and construction of transmission line.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Internal corrosion control: Design and construction of transmission...FEDERAL SAFETY STANDARDS Requirements for Corrosion Control § 192.476 Internal corrosion control: Design and construction of...

2010-10-01

195

Chapter 9: The FTU Machine - Design Construction and Assembly  

SciTech Connect

The main design features and guidelines for the construction of the 8-T cryogenically cooled Frascati Tokamak Upgrade (FTU) are presented. The main features include the very compact toroidal magnets based on the concept of the 'Bitter' type of coil with wedge-shaped turns, utilized for the first time for the Alcator A and C magnets, and the original configuration of the vacuum vessel (VV) structure, which is fully welded in order to achieve the required high strength and electric resistivity. The present toroidal limiter has been installed following several years of operation, and this installation has required the development of specific remote-handling tools. The toroidal limiter consists of 12 independent sectors made of stainless steel carriers and molybdenum alloy (TZM) tiles. The main fabrication processes developed for the toroidal and poloidal coils as well as for the VV are described. It is to be noted that the assembly procedure has required very accurate machining of all the structures requiring several trials and steps. The machine has shown no problem in operating routinely at its maximum design values (8 T, 1.6 MA)

Pizzuto, A.; Annino, C.; Baldarelli, M.; Bettinali, L.; Brolatti, G.; Crescenzi, C.; Maddaluno, G.; Riccardi, B.; Righetti, G.B.; Roccella, M.; Semeraro, L. [Associazione EURATOM-ENEA sulla Fusione (Italy)

2004-05-15

196

Designing for construction workers occupational health and safety: a case study of socio-material complexity  

Microsoft Academic Search

Drawing upon an empirical analysis of the design and construction of a food processing facility, a theoretical understanding of the impact of design decision-making on the occupational health and safety (OHS) of construction workers is developed. It is argued that current policy and legislative approaches to Construction Hazard Prevention through Design (CHPtD) are inherently limited because they do not adequately

Helen Clare Lingard; Tracy Cooke; Nick Blismas

2012-01-01

197

Split Awards, Procurement, and Innovation  

Microsoft Academic Search

In many procurement settings, it is possible for a buyer to split a production award between suppliers. In this article, we develop a model of split-award procurement auctions in which the split choice is endogenous. We characterize the set of equilibrium bids and allocations for optimizing agents in an environment in which suppliers are fully informed about each other's costs.

James J. Anton; Dennis A. Yao

1989-01-01

198

Question 2: Gas procurement strategy  

Microsoft Academic Search

This article is a collection of responses from natural gas distribution company representatives to questions on how the start-up of the natural gas futures market has changed gas procurement strategies, identification of procurement problems related to pipeline capacity, deliverability, or pregranted abandonment of firm transportation, the competition of separate utility subsidiaries with brokers, marketers, and other gas suppliers who sell

J. A. Carrigg; J. R. Crespo; E. B. Jr. Davis; R. D. Farman; R. C. Jr. Green; R. W. Hale; J. J. Howard; W. T. Jr. McCormick; T. A. Page; W. F. Ryan; T. F. Schrader; J. A. Schuchart; J. F. Smith; R. D. Stys; J. A. Thorpe

1990-01-01

199

Safeguards design strategies: designing and constructing new uranium and plutonium processing facilities in the United States  

SciTech Connect

In the United States, the Department of Energy (DOE) is transforming its outdated and oversized complex of aging nuclear material facilities into a smaller, safer, and more secure National Security Enterprise (NSE). Environmental concerns, worker health and safety risks, material security, reducing the role of nuclear weapons in our national security strategy while maintaining the capability for an effective nuclear deterrence by the United States, are influencing this transformation. As part of the nation's Uranium Center of Excellence (UCE), the Uranium Processing Facility (UPF) at the Y-12 National Security Complex in Oak Ridge, Tennessee, will advance the U.S.'s capability to meet all concerns when processing uranium and is located adjacent to the Highly Enriched Uranium Materials Facility (HEUMF), designed for consolidated storage of enriched uranium. The HEUMF became operational in March 2010, and the UPF is currently entering its final design phase. The designs of both facilities are for meeting anticipated security challenges for the 21st century. For plutonium research, development, and manufacturing, the Chemistry and Metallurgy Research Replacement (CMRR) building at the Los Alamos National Laboratory (LANL) in Los Alamos, New Mexico is now under construction. The first phase of the CMRR Project is the design and construction of a Radiological Laboratory/Utility/Office Building. The second phase consists of the design and construction of the Nuclear Facility (NF). The National Nuclear Security Administration (NNSA) selected these two sites as part of the national plan to consolidate nuclear materials, provide for nuclear deterrence, and nonproliferation mission requirements. This work examines these two projects independent approaches to design requirements, and objectives for safeguards, security, and safety (3S) systems as well as the subsequent construction of these modern processing facilities. Emphasis is on the use of Safeguards-by-Design (SBD), incorporating Systems Engineering (SE) principles for these two projects.

Scherer, Carolynn P [Los Alamos National Laboratory; Long, Jon D [Los Alamos National Laboratory

2010-09-28

200

10 CFR 436.43 - Procurement planning.  

Code of Federal Regulations, 2010 CFR

... 2010-01-01 false Procurement planning. 436.43 Section 436.43 Energy...CONSERVATION FEDERAL ENERGY MANAGEMENT AND PLANNING PROGRAMS Agency Procurement of Energy...Efficient Products 436.43 Procurement planning. (a) Agencies should consider...

2010-01-01

201

42 CFR 121.6 - Organ procurement.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Organ procurement. 121.6 Section 121.6...SERVICES HEALTH RESOURCES DEVELOPMENT ORGAN PROCUREMENT AND TRANSPLANTATION NETWORK § 121.6 Organ procurement. The suitability of...

2013-10-01

202

Comparison of nitrogen elimination rates of different constructed wetland designs.  

PubMed

In this paper the nitrogen elimination rates of different constructed wetland (CW) designs reported in literature are compared with those obtained for outdoor and indoor 2-stage vertical flow (VF) systems. The outdoor system is located about 150 km west of Vienna. Both stages are planted with Phragmites australis and the system has been operated for 4 years continuously. During this period the average value of the nitrogen elimination rate was 3.30 g N m(-2) d(-1). The indoor system comprises three parallel operated 2-stage VF systems and is located in the technical lab hall at BOKU University. The design of the indoor system resembles the outdoor system. However, there are a few differences: (1) the indoor systems are not planted, and (2) different filter media have been used for the main layer of the first stages. With the indoor system the highest nitrogen elimination rate achieved was 2.24 g N m(-2) d(-1) for the system with zeolite and impounded drainage layer. Similar results have been found in France for treating raw wastewater with VF and horizontal flow (HF) beds in series with nitrogen elimination rates of 1.89 and 2.82 g N m(-2) d(-1) for differently designed HF beds. The highest nitrogen elimination rates of 15.9 g N m(-2) d(-1) reported were for pilot-scale VF CWs treating high-strength synthetic wastewater (total nitrogen of 305 mg L(-1) in the influent) in Thailand. It has been shown that the outdoor two-stage VF CW system has one of the highest nitrogen elimination rates of CWs treating domestic wastewater. PMID:22214060

Canga, Eriona; Dal Santo, Sara; Pressl, Alexander; Borin, Maurizio; Langergraber, Guenter

2011-01-01

203

Managing the Construction Process. School Buildings Planning, Design, and Construction Series No. 6.  

ERIC Educational Resources Information Center

A school construction guide offers key personnel in school development projects information on the complex task of master planning and construction of schools in Australia. This chapter of the guide provides advice in the area of managing the construction process, covering such topics as consultant appointment and management, various contracting

Odell, John H.

204

Construction Methods and Materials. School Buildings Planning, Design, and Construction Series No. 5.  

ERIC Educational Resources Information Center

A school construction guide offers key personnel in school development projects information on the complex task of master planning and construction of schools in Australia. This chapter of the guide provides advice on the various types of construction that may be used, the materials available, and some elementary aspects of the services required

Odell, John H.

205

General design, construction, and operation guidelines: Constructed wetlands wastewater treatment systems for small users including individual residences  

Microsoft Academic Search

A constructed wetlands system (CW) treats wastewater through natural water quality improvement processes (physical, chemical and biological) that occur in natural wetlands. Proper design, construction and operation of a CW optimize the processes. Treatment by CW can be effective, reliable, simple and relatively inexpensive as compared to conventional systems. CW systems can be built for wide flow ranges, including sources

G. R. Steiner; J. T. Watson; K. D. Choate

1991-01-01

206

Design and Construction of a One Kilowatt Concentrator Photovoltaic System.  

National Technical Information Service (NTIS)

The construction details of a system which uses Fresnel lenses to concentrate sunlight on silicon solar cells are described. The cells are cooled either passively by convection or actively using a pumped fluid coolant. Construction and operation of the ar...

D. L. Marchi

1977-01-01

207

Engineer, design, construct, test, and evaluate a pressurized fluidized-bed pilot plant using high-sulfur coal for production of electric power. Phase III: pilot-plant construction. Quarterly report, June 1-August 31, 1980  

SciTech Connect

Technical progress during the period June 1 through August 31, 1980 included the following activities: The PSD permit approval was obtained from the US Environmental Protection Agency. The building permit was obtained from the Borough of Wood-Ridge. Installation designs incorporating modifications to the Total Energy System, Gas Turbine, Free Power Turbine and Waste Heat Boiler are in an advanced stage. Procurement has been initiated on all long lead material. The upper and lower PFB Vessel fabrication was started. Quotations for the Substructure Construction (Bid Package No. 1) are under review in preparation for issuing a purchase order in October 1980. Request for quotation on Structural Steelwork have been issued to potential bidders. Groundbreaking ceremonies took place on June 30, 1980 with the Assistant Secretary of the Department of Energy presiding and the Governor of New Jersey, a Congressional delegation and State Commissioner of Energy and Environment, Borough Officials among other dignitaries in attendance.

Not Available

1980-01-01

208

Managing EEE part standardisation and procurement  

NASA Astrophysics Data System (ADS)

This paper presents the development activities in space components selection and procurement dealing with a new data base tool implemented at Alcatel Space using TransForm softwaa re configurator developed by Techform S.A. Based on TransForm, Access Ingenierie has devv eloped a software product named OLG@DOS which facilitate the part nomenclatures analyses for new equipment design and manufacturing in term of ACCESS data base implementation. Hi-Rel EEE part type technical, production and quality information are collected and compiled usingproduction data base issued from production tools implemented for equipment definition, description and production based on Manufacturing Resource Planning (MRP II Control Open) and Parametric Design Manager (PDM Work Manager). The analysis of any new equipment nomenclature may be conducted through this means for standardisation purpose, cost containment program and management procurement activities as well as preparation of Component reviews as Part Approval Document and Declared Part List validation.

Serieys, C.; Bensoussan, A.; Petitmangin, A.; Rigaud, M.; Barbaresco, P.; Lyan, C.

2002-12-01

209

Progress In NCSX and QPS Design and Construction  

SciTech Connect

The National Compact Stellarator Experiment (NCSX) is being constructed at the Princeton Plasma Physics Laboratory (PPPL) in partnership with the Oak Ridge National Laboratory (ORNL). The stellarator core is designed to produce a compact 3-D plasma that combines stellarator and tokamak physics advantages. The engineering challenges of NCSX stem from its complex geometry. From the project's start in April, 2003 to September, 2004, the fabrication specifications for the project's two long-lead components, the modular coil winding forms and the vacuum vessel, were developed. An industrial manufacturing R&D program refined the processes for their fabrication as well as production cost and schedule estimates. The project passed a series of reviews and established its performance baseline with the Department of Energy. In September 2004, fabrication was approved and contracts for these components were awarded. The suppliers have completed the engineering and tooling preparations and are in production. Meanwhile, the project completed preparations for winding the coils at PPPL by installing a coil manufacturing facility and developing all necessary processes through R&D. The main activities for the next two years will be component manufacture, coil winding, and sub-assembly of the vacuum vessel and coil subsets. Machine sector sub-assembly, machine assembly, and testing will follow, leading to First Plasma in July 2009.

Reiersen, W.; Heitzenroeder, P.; Neilson, G. H.; Nelson, B.; Zarnstorff, M.; Brown, T.; Cole, M.; Chrzanowski, J.; Fogarty, P.; Goranson, P.; Lyon, J.; Schmidt, J.; Strykowsky, R.; Viola, M.; Williamson, D.

2005-10-20

210

LBT adaptive secondary units final design and construction  

NASA Astrophysics Data System (ADS)

The Large Binocular Telescope will perform its first level AO correction at visual wavelengths by the two Gregorian secondary mirrors. Each unit is made by a 911 mm diameter and 1.6 mm thick Zerodur shell which shape is controlled by 672 electromagnetic actuators at 1 kHz rate. The shape of each mirror is referred to a Zerodur 50 mm thick backplate through a set of capacitive sensors co-located with the actuators. Each adaptive secondary unit embeds its real time computer for actuator control and communication. Each unit is aligned into the secondary hub by a 6 d.o.f. hexapod system. The construction of the AO units started this year, while the hexapods have been completed in 2001. We present in this paper the final design of the adaptive secondary systems with particular emphasis on the modifications that we made based on the MMT adaptive secondary experience. We will also report the first results of the subsystems development tests.

Gallieni, Daniele; Anaclerio, Enzo; Lazzarini, Paolo G.; Ripamonti, Angelo; Spairani, Roberto; Del Vecchio, Ciro; Salinari, Piero; Riccardi, Armando; Stefanini, Paolo; Biasi, Roberto

2003-02-01

211

Design and Construction of a Radio Telescope for Undergraduate Research  

NASA Astrophysics Data System (ADS)

Radio telescopes provide a practical and economical alternative to optical observatories for astrophysics research and education at primarily undergraduate physics and astronomy institutions. Ithaca College is in the testing phase of development for a low cost, flexible frequency band radio telescope which I have developed as the research component of my undergraduate thesis. I have constructed a three-stage low noise superheterodyne radiometer on custom printed circuit boards for signal detection, which is mounted on a 3 meter parabolic antenna. Data collection and signal processing is achieved using custom software written in MATLAB. We are currently performing preliminary drift continuum observations of the Sun and Milky Way at Ku band frequencies. We expect that the receiver can also be easily adapted to measure spectral emission of neutral hydrogen and OH masers at L band. I present my design methods for the radiometer and printed circuit boards, including measured noise characteristics and SPICE simulations, as well as an overview of applied signal processing methods and a discussion of observable celestial sources.

Stathis, Christopher

2011-03-01

212

TFTR materials issues and problems during design and construction  

NASA Astrophysics Data System (ADS)

TFTR as well as its contemporaries, T15, JT60 and JET, have important contributions to make towards our understanding of plasma conditions In the thermonuclear regime. One of the main objectives of TFTR is to produce fusion power densities approaching those in a fusion reactor, 1 Wcm -3, at Q 1 - 2. TFTR will be the first tokamak to routinely use deuterium tritium, and produce 10 19 fusion neutrons per pulse. With startup of TFTR on December 24, 1982, the demonstration of physics feasibility of "breakeven" is close at hand. Since TFTR performance will be reactor relevant, the capability of materials/components to withstand the hostile effects of a plasma environment will be presented. It is Intended that designers of future fusion devices benefit from the materials technology developments and applications on TFTR. In an attempt to comply with this mandate, this paper will describe TFTR issues on materials, their developments, selections, problems and solutions. Special emphasis will be given, in particular, to the impurity control devices in TFTR, namely, the limiter and surface pumping system located inside the vacuum vessel. The plasma will interact with these components and they will be subjected to disruptions, a vacuum of 10 -6 to 10 -8 torr and a nominal temperatures of <250C. "Painful" materials development problems encountered will be reviewed, as well as important "lessons learned." A briefing on the materials of construction will be given, with some comments on the problems that developed and their solutions.

Sabado, M.; Little, R.

1984-05-01

213

Audit Report The Procurement of Safety Class/Safety-Significant Items at the Savannah River Site  

SciTech Connect

The Department of Energy operates several nuclear facilities at its Savannah River Site, and several additional facilities are under construction. This includes the National Nuclear Security Administration's Tritium Extraction Facility (TEF) which is designated to help maintain the reliability of the U.S. nuclear stockpile. The Mixed Oxide Fuel Fabrication Facility (MOX Facility) is being constructed to manufacture commercial nuclear reactor fuel assemblies from weapon-grade plutonium oxide and depleted uranium. The Interim Salt Processing (ISP) project, managed by the Office of Environmental Management, will treat radioactive waste. The Department has committed to procuring products and services for nuclear-related activities that meet or exceed recognized quality assurance standards. Such standards help to ensure the safety and performance of these facilities. To that end, it issued Departmental Order 414.1C, Quality Assurance (QA Order). The QA Order requires the application of Quality Assurance Requirements for Nuclear Facility Applications (NQA-1) for nuclear-related activities. The NQA-1 standard provides requirements and guidelines for the establishment and execution of quality assurance programs during the siting, design, construction, operation, and decommissioning of nuclear facilities. These requirements, promulgated by the American Society of Mechanical Engineers, must be applied to 'safety-class' and 'safety-significant' structures, systems and components (SSCs). Safety-class SSCs are defined as those necessary to prevent exposure off site and to protect the public. Safety-significant SSCs are those whose failure could irreversibly impact worker safety such as a fatality, serious injury, or significant radiological or chemical exposure. Due to the importance of protecting the public, workers, and environment, we initiated an audit to determine whether the Department of Energy procured safety-class and safety-significant SSCs that met NQA-1 standards at the Savannah River Site. Our review disclosed that the Department had procured and installed safety-class and safety-significant SSCs that did not meet NQA-1 quality standards. Specifically, we identified multiple instances in which critical components did not meet required quality and safety standards. For example: (1) Three structural components were procured and installed by the prime contractor at Savannah River during construction of the MOX Facility that did not meet the technical specifications for items relied on for safety. These substandard items necessitated costly and time consuming remedial action to, among other things, ensure that nonconforming materials and equipment would function within safety margins; (2) In six instances, items used in the construction of TEF failed to satisfy quality standards. In one of these situations, operating procedures had to be modified to ensure that the problem item did not compromise safety; and (3) Finally, at the ISP, one component that did not meet quality standards was procured. The failure of the item could have resulted in a spill of up to 15,000 gallons of high-level radioactive waste. Based on an extensive examination of relevant internal controls and procurement practices, we concluded that these failures were attributable to inadequate attention to quality assurance at Savannah River. Simply put, Departmental controls were not adequate to prevent and/or detect quality assurance problems. For example, Federal and prime contractor officials did not expressly require that subcontractors or lower-tiered vendors comply with quality assurance requirements. Additionally, management did not effectively communicate quality assurance concerns between the several Departmental program elements operating at Savannah River. The procurement and installation of these nonconforming components resulted in cost increases. For example, as of October 2008, the MOX Facility had incurred costs of more than $680,000 due to problems associated with the procurement of $11 million of nonconforming safety-class reinforcing steel.

None

2009-04-01

214

Design and Construction of a Modular Lunar Base  

NASA Astrophysics Data System (ADS)

DESIGN and CONSTRUCTION of a MODULAR LUNAR BASE Purpose: The Lunar Base Design Study is a concept for the return of humans from 2020 to the end of the century. Structure: The proposed lunar station is built of 6 cylindrical modules, each one 17 m long and 6 m in diameter. Each module is made of aluminium sheets and trapezoidal aluminium sheeting and has a weight (on earth) of approx.10.2 tonnes, including the interior equipment and furnishing. The outer wall of the cylinders is built as a double-shell system, stiffened by radial bulkheads. 8 astronauts or scientists can live and work in the station, using the modules as follows: -1 Central Living Module -2 Living Quater Modules, with private rooms for each person -1 Laboratory Module for scientific research and engineering -1 Airlock Module, containing outdoor equipment, space suits, etc. -1 Energy Plant Module, carrying solar panels a small nuclear reactor and antennas for communication. Shielding: To protect the astronauts micrometeorites and radiation, the caves between the two shells of the outer wall are filled with a 0.6 m thick layer or regolith in situ by a small teleoperated digger vehicle. Using lunar material for shielding the payload for launching can be minimized. Launch and Transport: For launching a modified ARIANE 5 launcher or similar US, Russian, Chinese or Indian rockets can be used. For the flight from Earth Orbit to Lunar Orbit a "Space-Tug", which is deployed in Earth Orbit, can be used. To land the modules on the lunar surface a "Teleoperated Rocket Crane" has been developed by the author. This vehicle will be assembled in lunar orbit and is built as a structural framework, carrying rocket engines, fuel tanks and teleoperated crawlers to move the modules on the lunar surface. To establish this basic stage of the Lunar Base 11 launches are necessary: -1 Lunar Orbiter, a small manned spaceship (3 astronauts) -1 Manned Lander and docking module for the orbiter -1 Teleoperated Rocket Crane -6 Lunar Base Modules -1 machinery, teleoperated digger and excavator vehicle, etc. -1 scientific equipment, Lunar Rover, etc. Future: Due to its modular design the LUNAR BASE can be enlarged in stages, finally becom-ing an "urban structure" for dozens of astronauts, scientists and even tourists, always using similar launchers and machinery with current technoloy. Werner Grandl

Grandl, Dipl. Ing Werner

215

Lessons Learned from the 200 West Pump and Treatment Facility Construction Project at the US DOE Hanford Site - A Leadership for Energy and Environmental Design (LEED) Gold-Certified Facility - 13113  

SciTech Connect

CH2M Hill Plateau Remediation Company (CHPRC) designed, constructed, commissioned, and began operation of the largest groundwater pump and treatment facility in the U.S. Department of Energy's (DOE) nationwide complex. This one-of-a-kind groundwater pump and treatment facility, located at the Hanford Nuclear Reservation Site (Hanford Site) in Washington State, was built to an accelerated schedule with American Recovery and Reinvestment Act (ARRA) funds. There were many contractual, technical, configuration management, quality, safety, and Leadership in Energy and Environmental Design (LEED) challenges associated with the design, procurement, construction, and commissioning of this $95 million, 52,000 ft groundwater pump and treatment facility to meet DOE's mission objective of treating contaminated groundwater at the Hanford Site with a new facility by June 28, 2012. The project team's successful integration of the project's core values and green energy technology throughout design, procurement, construction, and start-up of this complex, first-of-its-kind Bio Process facility resulted in successful achievement of DOE's mission objective, as well as attainment of LEED GOLD certification (Figure 1), which makes this Bio Process facility the first non-administrative building in the DOE Office of Environmental Management complex to earn such an award. (authors)

Dorr, Kent A.; Freeman-Pollard, Jhivaun R.; Ostrom, Michael J. [CH2M HILL Plateau Remediation Company, P.O. Box 1600, MSIN R4-41, 99352 (United States)] [CH2M HILL Plateau Remediation Company, P.O. Box 1600, MSIN R4-41, 99352 (United States)

2013-07-01

216

Lessons Learned From The 200 West Pump And Treatment Facility Construction Project At The US DOE Hanford Site - A Leadership For Energy And Environmental Design (LEED) Gold-Certified Facility  

SciTech Connect

CH2M Hill Plateau Remediation Company (CHPRC) designed, constructed, commissioned, and began operation of the largest groundwater pump and treatment facility in the U.S. Department of Energy's (DOE) nationwide complex. This one-of-a-kind groundwater pump and treatment facility, located at the Hanford Nuclear Reservation Site (Hanford Site) in Washington State, was built in an accelerated manner with American Recovery and Reinvestment Act (ARRA) funds and has attained Leadership in Energy and Environmental Design (LEED) GOLD certification, which makes it the first non-administrative building in the DOE Office of Environmental Management complex to earn such an award. There were many contractual, technical, configuration management, quality, safety, and LEED challenges associated with the design, procurement, construction, and commissioning of this $95 million, 52,000 ft groundwater pump and treatment facility. This paper will present the Project and LEED accomplishments, as well as Lessons Learned by CHPRC when additional ARRA funds were used to accelerate design, procurement, construction, and commissioning of the 200 West Groundwater Pump and Treatment (2W P&T) Facility to meet DOE's mission of treating contaminated groundwater at the Hanford Site with a new facility by June 28, 2012.

Dorr, Kent A. [CH2M HILL Plateau Remediation Company, Richland, WA (United States); Ostrom, Michael J. [CH2M HILL Plateau Remediation Company, Richland, WA (United States); Freeman-Pollard, Jhivaun R. [CH2M HILL Plateau Remediation Company, Richland, WA (United States)

2012-11-14

217

Lessons Learned from the 200 West Pump and Treatment Facility Construction Project at the US DOE Hanford Site - A Leadership for Energy and Environmental Design (LEED) Gold-Certified Facility  

SciTech Connect

CH2M Hill Plateau Remediation Company (CHPRC) designed, constructed, commissioned, and began operation of the largest groundwater pump and treatment facility in the U.S. Department of Energys (DOE) nationwide complex. This one-of-a-kind groundwater pump and treatment facility, located at the Hanford Nuclear Reservation Site (Hanford Site) in Washington State, was built to an accelerated schedule with American Recovery and Reinvestment Act (ARRA) funds. There were many contractual, technical, configuration management, quality, safety, and Leadership in Energy and Environmental Design (LEED) challenges associated with the design, procurement, construction, and commissioning of this $95 million, 52,000 ft groundwater pump and treatment facility to meet DOEs mission objective of treating contaminated groundwater at the Hanford Site with a new facility by June 28, 2012. The project teams successful integration of the projects core values and green energy technology throughout design, procurement, construction, and start-up of this complex, first-of-its-kind Bio Process facility resulted in successful achievement of DOEs mission objective, as well as attainment of LEED GOLD certification, which makes this Bio Process facility the first non-administrative building in the DOE Office of Environmental Management complex to earn such an award.

Dorr, Kent A.; Ostrom, Michael J.; Freeman-Pollard, Jhivaun R.

2013-01-11

218

Investigating the integration of design and construction from a lean perspective  

Microsoft Academic Search

Purpose Better integration of project processes has often been identified as the key issue regarding construction performance improvement. In some countries lean construction has become well-established, although there appears to be considerable diversity in the interpretation of the concept. Lean construction initially focused on production aspects, but gradually design issues have started to receive more attention and integrating construction

Bo Jrgensen; Stephen Emmitt

2009-01-01

219

A Model Partnership Between Penn State Harrisburgs Structural Design and Construction Engineering Technology Program and the Construction Industry  

NSDL National Science Digital Library

The goal of any engineering technology curriculum at a university is to provide the information and skills so that each student can be successful in his/her chosen career path. This is especially critical for a construction engineering technology program because of the high demand of jobs in the construction industry. The construction industry is constantly changing over the years and this means that university programs should also keep up with that change. That is why the program at Penn State Harrisburg is continuously planning, developing, and modifying its curriculum to keep abreast of the changes and advancements being made in the construction profession. The industrial relationships and partnerships that a program develops are critical elements to its success. The programs that foster and strengthen relationships with construction firms and professional associations will not only benefit the program but also those firms and associations. This paper will discuss the connection between Penn State Harrisburg's Structural Design and Construction Engineering Technology program and the construction industry. Various activities such as student organizations, career fairs, guest speakers, internships, capstone projects, field trips to construction sites, and professional meetings have revealed excellent examples of a winwin relationship for both the Construction Engineering Technology program at Penn State Harrisburg and its partners in the construction industry.

Cecere, Joseph J.; Vidalis, Sofia

2009-08-24

220

Appenices. School Buildings Planning, Design, and Construction Series No. 8.  

ERIC Educational Resources Information Center

A school construction guide offers key personnel in school development projects information on the complex task of master planning and construction of schools in Australia. This chapter presents the appendix for the complete guide and contains summary statements of important procedures outlined in the earlier chapters. Included are outlines of

Odell, John H.

221

The ALMA antenna procurement  

NASA Astrophysics Data System (ADS)

Visitors who come to the OSF at regular intervals find a growing population of antennas at various stages of assembly and testing. The long path from the start of the definition of antenna specifications to the start of science operations with the antennas was and still is a formidable endeavor. When completed, ALMA will comprise a 12-meter diameter antennas array, the bilateral interferometer array, of a minimum of fifty antennas and in addition, the ACA (Atacama Compact Array), composed of four 12-meter diameter antennas and twelve 7-meter diameter antennas. Out of the fifty antennas of the bilateral interferometer array, one-half are provided by the North American partners of ALMA, the other half by the European partners. The sixteen antennas that will comprise the ACA are provided by the East Asian Partners of ALMA. Here we review some key points of this challenging process and we provide a brief history and status of the ALMA antennas. Because of the length of the description, we will present this in a series of two articles. In this first part we concentrate mostly on the bilateral antenna procurement. A detailed description of the ACA will be presented in the next newsletter.

Stanghellini, S.; Zivick, Jeff; Inatani, Junji

2009-10-01

222

41 CFR 102-76.30 - What seismic safety standards must Federal agencies follow in the design and construction of...  

Code of Federal Regulations, 2013 CFR

...must Federal agencies follow in the design and construction of Federal facilities? 102-76.30 Section...REGULATION REAL PROPERTY 76-DESIGN AND CONSTRUCTION Design and Construction § 102-76.30 What seismic safety...

2013-07-01

223

Reimagining Game Design: Exploring the Design of Constructible Authentic Representations for Science Reasoning  

NASA Astrophysics Data System (ADS)

Video games have recently become a popular space for educational design due to their interactive and engaging nature and the ubiquity of the gaming experience among youth. Though many researchers argue video games can provide opportunities for learning, educational game design has focused on the classroom rather than the informal settings where games are typically played. Educational games have been moderately successful at achieving learning gains on standardized items, but have failed to show improvements on related but distal problems. In this dissertation I develop and assess a new design principle, called constructible authentic representations for creating informal gaming experiences that players will actively draw on when reasoning in formal and real world contexts. These games provide players with opportunities to engage in meaningful construction with components that integrate relevant concepts to create in-game representations that visually and epistemologically align with related tools and representations utilized in the target domain. In the first phase of the dissertation, I observed children playing popular video games to better understand what in-game representations children attend to and how interactions with these representations contribute to intuitive ideas of encountered STEM content. Results from this study fed into the iterative design of two prototype video games, FormulaT Racing and Particles!, intending to give players useful knowledge resources for reasoning about kinematics and the particulate nature of matter respectively. Designed games encourage players to utilize and refine intuitive ideas about target content through the construction of domain relevant representations. To assess the effectiveness of these designs I conducted two studies of children ages 7-14 playing prototype games in informal settings. An analysis of pre- and post-game clinical interviews, domain specific tasks, and video and logging data of gameplay suggests players developed useful knowledge resources, likely gained and/or refined from experiences in-game, that are employed to solve non-game problems and tasks. Furthermore, players utilized in-game representations as objects-to-think-with when explaining real world phenomena and formal concepts. The results suggest that games designed to include constructible authentic representations can provide players with powerful and useful knowledge resources accessible when thinking and reasoning in a variety of contexts.

Holbert, Nathan Ryan

224

Construction  

Cancer.gov

The Biomedical Research Extension Act of 1977 (P.L. 95-83) No statutory changes or report language affecting construction. The Health Program Extension Act of 1980 (P.L. 96-538) No statutory changes or report language affecting construction. The Health Omnibus Program Extension of 1988 (P.L. 100-607) There were no statutory changes to the construction provisions.

225

Procurement of Literature Searching Services.  

ERIC Educational Resources Information Center

A project for the cyclic review of the safety of food additives initiated by the Food and Drug Administration's Bureau of Foods is outlined, and contractual arrangements and procedures for procuring the necessary literature searches are discussed. (CWM)

Burgess, Jonathan G.; McCann, Anne

1979-01-01

226

Procurement Policy for Armored Vehicles.  

National Technical Information Service (NTIS)

Congresswoman Louise M. Slaughter requested that the Inspector General (IG), DoD review the DoD procurement history for body armor and armored vehicles and determine whether officials properly followed contracting policies. Congresswoman Slaughter also re...

B. A. Burton B. K. Schaefer D. L. Carros L. Truong R. B. Jolliffe

2007-01-01

227

Space station system analysis study. Part 3: Documentation. Volume 2: Technical report. [structural design and construction  

NASA Technical Reports Server (NTRS)

An analysis of construction operation is presented as well as power system sizing requirements. Mission hardware requirements are reviewed in detail. Space construction base and design configurations are also examined.

1977-01-01

228

Monitoring of the Fort Knox Industrialized BOQ Project--Design and Construction Phases.  

National Technical Information Service (NTIS)

This report presents results of the monitorship of the construction and design of a demonstration project of industrialized building applied to Department of the Army construction requirements. The project was a 250-man bachelor officers' quarters (BOQ) a...

J. C. Hamilton D. A. Bryant M. G. Carroll

1975-01-01

229

46 CFR 160.066-5 - Design, construction, and manufacturing requirements.  

Code of Federal Regulations, 2013 CFR

... EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL LIFESAVING EQUIPMENT Distress Signal for Boats, Red Aerial Pyrotechnic Flare § 160.066-5 Design, construction, and manufacturing requirements. (a) Each signal...

2013-10-01

230

Constructive Mentoring for Primary Science Teaching: Exploring and Designing Constructs for Sequencing Science Lessons.  

ERIC Educational Resources Information Center

Explains the strategies employed to constructively mentor a preservice teacher. Uses small group instruction to test different theories on the topics of floating and sinking. Includes a mentor feedback sheet. (YDS)

Hudson, Peter

2002-01-01

231

The Design and Construction of Thin Film Radiation Thermopiles.  

National Technical Information Service (NTIS)

Thin film radiation thermopiles promise substantial improvement in detector performance and construction cost over conventional solid-wire thermopiles when used in space simulation chambers for measuring simulated solar total irradiance. Three types of su...

D. F. Frazine

1966-01-01

232

Design and Construction of a Truck Arrester Bed Research Facility.  

National Technical Information Service (NTIS)

During the summer of 1984, an Arrester Bed Research Facility was constructed adjacent to the Pavement Durability Research Facility of the Pennsylvania Transportation Institute. The Arrester Bed Research Facility is to be used for experimentation in the me...

M. S. Trueblood

1984-01-01

233

Design, construction, and characterization of an electromagnetic small period undulator  

SciTech Connect

In this work a new concept for the construction of small period electromagnetic insertion devices is presented. The construction of a pulsed undulator with 2 mm gap and 8 mm magnetic period is described, as well as its pulser. The magnetic measurement system is presented and the obtained data is compared with the calculated field. Finally, the possible application of this device for synchrotron radiation production in LINAC's and a future cw superconducting version for storage rings is discussed.

Gomes, P.A.P.; Rafael, F.d.S. (Laboratorio Nacional de Luz Sincrotron-LNLS/CNPq, 13081 Campinas SP (Brazil)); Rodrigues, A.R.D. (Laboratorio Nacional de Luz Sincrotron-LNLS/CNPq, 13081 Campinas SP, Brazil and Universidade de Sao Paulo, Instituto de Fisica (USP/IFQSC/DFCM), Sao Paulo (Brazil))

1992-01-01

234

Risk analysis in fixed-price designbuild construction projects  

Microsoft Academic Search

Construction projects are being tendered and implemented under different contract systems and payment methods. Designbuild has been a popular contract system in recent years. It provides various advantages through entailing the contractor carrying out and being responsible for not only construction but also the design of the work. However, designbuild turns out to be a risky system for both owners

Ahmet zta?; nder kmen

2004-01-01

235

Feedwater heater procurement guidelines. Final report  

SciTech Connect

Reliability of closed feedwater heaters has become a subject of increasing interest to the electric power generation industry. A comprehensive design specification is an essential prerequisite to procuring a high quality heater. This report provides a generic document from which ''custom'' purchasing specifications for specific heaters can be developed. The logic and rationale of many provisions of the specification are explained in the ''sourcebook'' part of this report. The sourcebook is also intended to serve as a convenient reference material for many important design and fabrication topics in the field of heater technology. 34 refs., 114 figs., 22 tabs.

Holtz, M.J.; Singh, K.P.; Walsh, M.J.; Menuchin, Y.; Chhina, M.; McAnany, F.

1985-07-01

236

Design, analysis and construction of a composite camera gimbal  

Microsoft Academic Search

The design, FE analysis, deflection and strength optimisation, manufacture and physical testing of an all-composite camera mounting gimbal for airborne use was discussed. The existing magnesium design is considered too heavy and its metallic structure is both prone to harmonic oscillations and radar detection, thus a new composite design has been proposed. The use of finite element packages allowed the

C. J von Klemperer; V. E Verijenko

2001-01-01

237

Construct-a-Greenhouse. Science by Design Series.  

ERIC Educational Resources Information Center

This book is one of four books in the Science-by-Design Series created by TERC and funded by the National Science Foundation (NSF). This series presents directed instruction on how to successfully formulate and carry out product design. Students learn and apply concepts in science and technology to design and build a pair of insulated gloves, a

Lee, Felicia

238

Construct-a-Glove. Science by Design Series.  

ERIC Educational Resources Information Center

This book is one of four books in the Science-by-Design Series created by TERC and funded by the National Science Foundation (NSF). It offers high school students a challenging, hands-on opportunity to compare the function and design of many types of handwear from a hockey mitt to a surgical glove, and design and test a glove to their own

Pulis, Lee

239

Analysis of Procurement Processes and Development of Recommendations for Intelligent Transportation Systems (ITS) Procurements.  

National Technical Information Service (NTIS)

Traditional state procurement processes are not well-suited to the procurement of Intelligent Transportation System (ITS). The object of this study was to analyze Kentucky's existing procurement processes, identify strengths and weaknesses of each, and de...

C. W. Frost J. D. Crabtree J. M. Crossfield J. R. Walton

2007-01-01

240

Agent Technologies Designed to Facilitate Interactive Knowledge Construction  

ERIC Educational Resources Information Center

During the last decade, interdisciplinary researchers have developed technologies with animated pedagogical agents that interact with the student in language and other communication channels (such as facial expressions and gestures). These pedagogical agents model good learning strategies and coach the students in actively constructing knowledge

Graesser, Arthur C.; Jeon, Moongee; Dufty, David

2008-01-01

241

Design Piracy: Student Perceptions of a Constructive Controversy Activity  

ERIC Educational Resources Information Center

Optimal learning occurs when students are interested in the subject matter, are motivated with challenging and quality learning opportunities, and when immersed in atmospheres that make learning enjoyable. One technique to promote optimal learning is through the use of constructive controversies. The purpose of this study was to provide an example

Marcketti, Sara B.

2007-01-01

242

Chemistry and Biology Laboratories. Design--Construction--Equipment.  

ERIC Educational Resources Information Center

Guidelines for planning, building, and equipping the biological and chemical laboratory are revealed, along with construction methods for the modernization or building of new academic or industrial type laboratories. Building equipment, services, utilities, and materials data are given with rules concerning the dimensions and services of

Schramm, Werner

243

Integrated Constructed Wetlands: concept, design, site evaluation and performance  

Microsoft Academic Search

Integrated Constructed Wetlands' (ICW) are a joined-up approach to land and water management. Significant synergies were achieved by explicitly combining environmental, ecological and aesthetic objectives. Intercepted precipitation was found to be the main factor determining treatment efficacy. Soil infiltration and evapo-transpiration combined to enhance hydraulic residence time. A wetland area and configuration were the principal factors determining effluent water quality.

R. Harrington; P. Carroll; A. H. Carty; J. Keohane; C. Ryder

2007-01-01

244

Moisture problems in the design and construction phase  

Microsoft Academic Search

SUMMARY: In the construction phase a number of moisture problems occurs as for instance that materials will be wet from rain or leaking installation. Failure mode and effect analysis (FMEA) can make a list of problems and what can be done to solve them. The cost of repairing in the building phase is shown to be much cheaper than waiting

Anker Nielsen

245

The construction of VI design and modern enterprise culture image  

Microsoft Academic Search

Enterprise culture is a enterprise image, is the soul of an enterprise, employees, improve enterprise image shows the important embodiment of brand strategy, is the enterprise is one of the important tasks of management. This article discusses VI vision identification system as an important part of enterprise culture and the construction of enterprise culture plays an important role in image

Dong Lihua

2010-01-01

246

Design/Construction methods - Tunelling in Swelling rocks  

NSDL National Science Digital Library

Authors, Ch Amstad, Georgios Anagnostou and Kalman Kovari present a paper concerning laboratory tests and the monitoring of swelling rock as well as relevant case histories in tunnel construction. The site addresses many key issues in the field of rock mechanics.

Amstad, Ch.; Anagnostou, Georgios; Kovari, Kalman

2008-10-06

247

School Buildings: Planning, Design, and Construction Series 1-8.  

ERIC Educational Resources Information Center

This guide provides assistance to key personnel charged with developing an independent school construction process in New South Wales (Australia). The guide's eight booklets emphasize the importance of master plans; encourage cooperation of school staff, boards, and the surrounding community in building schools; and outline the planning process

Odell, John H.

248

Designing of dynamic labor inspection system for construction industry  

Microsoft Academic Search

Labor inspection services in many countries are not able to carry out their roles and functions. They are often understaffed, underequipped, undertrained and underpaid. In addition, workplaces vary enormously, especially in the construction industry. A labor inspectorate must build its policies and deploy its resources in accordance with the variations. Ranking workplaces from worst to best is perhaps the most

Chia-Wen Liao; Tsung-Lung Chiang

249

DESIGN AND CONSTRUCTION OF A MOBILE ACTIVATED CARBON REGENERATOR SYSTEM  

EPA Science Inventory

Activated carbon adsorption has become a standard procedure for the cleanup of contaminated water streams. To facilitate such cleanup at hazardous waste and spill sites, mobile carbon adsorption units have been constructed and are now in use. Their primary drawback is the logisti...

250

The role of the facility manager in new procurement routes  

Microsoft Academic Search

The private finance initiative (PFI) is a means of using private finance and skills to deliver capital investment projects traditionally provided by the public sector. Traditionally, public sector bodies have been responsible for the procurement, operation and regulation of capital assets. In PFI, the private sector has the primary role in the operation of constructed facilities, whereas the public sector

Mohamed A. El-Haram; Andrew Agapiou

2002-01-01

251

EVALUATION OF LARGE, MODERN WAREHOUSE STORAGES DESIGNED AND CONSTRUCTED FOR APPLICATION OF CARBON DIOXIDE  

Microsoft Academic Search

Warehouses for controlled CO 2 storage with a total capacity of 45,000 tonnes were constructed at Mianyang, where field experiments were successfully carried out. This paper describes the construction techniques, CO 2 supply and distribution system, auto-monitoring system, security and safety facilities, sealing materials, gastightness test techniques and field experiments. The results showed that design and construction techniques were reasonable.

GUO DAOLIN; TU JIE; LAN SHENGBIN; GAO YING; DING CHAOMING; WANG SHUANGLIN; ZHANG HUACHANG; YANG ZHAO; DING JIANWU; MA HONGLIN; HE QILE; CAO LEXIN; LIAO GUIYONG; MA ZHONGPING; LONG LIGUANG

252

Design and construction of septum magnets at the 7-GeV APS.  

National Technical Information Service (NTIS)

The mechanical design, construction, and assembly procedure of six different septum magnet designs used in the Advanced Photon Source (APS) facility will be described. This will include a positron accumulator ring (PAR) AC septum magnet, a synchrotrons th...

A. Gorski

1999-01-01

253

Design and Construction of Aquaculture Facilities in Dredged Material Containment Areas.  

National Technical Information Service (NTIS)

Aquaculture as a multiple use of dredged material containment areas (DMCA) has been investigated by the Containment Area Aquaculture Program (CAAP). This report describes design and construction of aquaculture pond facilities in DMCA, reviews design, cons...

J. Homziak C. D. Veal

1993-01-01

254

Construction of irradiated material examination facility-basic design.  

National Technical Information Service (NTIS)

The basic design of the hot cell facility which has the main purpose of doing mechanical and physical property tests of irradiated materials, the examination process, and the annexed facility has been made. Also basic and detall designs for the undergroun...

S. G. Ro E. K. Kim G. W. Hong Y. H. Herr K. P. Hong

1989-01-01

255

Construct-a-Boat. Science by Design Series.  

ERIC Educational Resources Information Center

This book is one of four books in the Science-by-Design Series created by TERC and funded by the National Science Foundation (NSF). It challenges high school students to investigate the physics of boat performance and work with systems and modeling. Through research, design, testing, and evaluation of a model boat, students experience the

Baroway, William

256

MINIMIZING THE ENVIRONMENTAL IMPACT OF CONSTRUCTION MATERIALS IN PLAYGROUND DESIGN  

EPA Science Inventory

We are a playground design team at Louisiana State University that has been involved with playground design projects for the past seven years. Playgrounds are extremely important to society because they promote the physical, mental, and social well being of children. ...

257

Design and Construction of a Wide Angle Ophthalmoscope and Camera.  

National Technical Information Service (NTIS)

The purpose of the project was to design a camera capable of photographing the entire fundus of the eye in a single exposure. One of the main design problems was the 'haze' created over the central part of the retinal image by reflections from crystalline...

O. Pomerantzeff

1975-01-01

258

On conversation and design: a socially constructed practice  

Microsoft Academic Search

This article is about how conversation becomes both instructional design process and reflexive narrative inquiry. The narrative is shaped around the story and restorying of a course redevelopment project in teacher education. Told in three parts, the Start of the Journey recalls the authors' individual beliefs and expectations about teaching and learning and the instructional design process; the Heart of

Katy Campbell; Susan Gibson; Catherine Gramlich

2005-01-01

259

Interior office design and visitor response: A constructive replication  

Microsoft Academic Search

Evaluated the relationships among 3 office design elements (desk placement, presence of status symbols, and tidiness) and visitor responses, using 100 undergraduates. In a repeated-measures design, Ss rated slides of a faculty office in terms of (1) their feelings of comfort and welcomeness and (2) 12 attributions of the office's occupant. Tidiness demonstrated the strongest effects, with an intermediary level

Paula C. Morrow; James C. McElroy

1981-01-01

260

NASA Procurement Career Development Program  

NASA Technical Reports Server (NTRS)

The NASA Procurement Career Development Program establishes an agency-wide framework for the management of career development activity in the procurement field. Within this framework, installations are encouraged to modify the various components to meet installation-specific mission and organization requirements. This program provides a systematic process for the assessment of and planning for the development, training, and education required to increase the employees' competence in the procurement work functions. It includes the agency-wide basic knowledge and skills by career field and level upon which individual and organizational development plans are developed. Also, it provides a system that is compatible with other human resource management and development systems, processes, and activities. The compatibility and linkage are important in fostering the dual responsibility of the individual and the organization in the career development process.

1987-01-01

261

Construction of a 21-Component Layered Mixture Experiment Design  

SciTech Connect

This paper describes the solution to a unique and challenging mixture experiment design problem involving: (1) 19 and 21 components for two different parts of the design, (2) many single-component and multi-component constraints, (3) augmentation of existing data, (4) a layered design developed in stages, and (5) a no-candidate-point optimal design approach. The problem involved studying the liquidus temperature of spinel crystals as a function of nuclear waste glass composition. The statistical objective was to develop an experimental design by augmenting existing glasses with new nonradioactive and radioactive glasses chosen to cover the designated nonradioactive and radioactive experimental regions. The existing 144 glasses were expressed as 19-component nonradioactive compositions and then augmented with 40 new nonradioactive glasses. These included 8 glasses on the outer layer of the region, 27 glasses on an inner layer, 2 replicate glasses at the centroid, and one replicate each of three existing glasses. Then, the 144 + 40 = 184 glasses were expressed as 21-component radioactive compositions and augmented with 5 radioactive glasses. A D-optimal design algorithm was used to select the new outer layer, inner layer, and radioactive glasses. Several statistical software packages can generate D-optimal experimental designs, but nearly all require a set of candidate points (e.g., vertices) from which to select design points. The large number of components (19 or 21) and many constraints made it impossible to generate the huge number of vertices and other typical candidate points. JMP(R) was used to select design points without candidate points. JMP uses a coordinate-exchange algorithm modified for mixture experiments, which is discussed in the paper.

Piepel, Gregory F.; Cooley, Scott K.; Jones, Bradley

2004-09-22

262

Being an Effective, Engaged Owner during a Design and Construction Project  

ERIC Educational Resources Information Center

This article explains how a project owner can be an active participant during the design and construction of his/her facility. The author discusses the two levels of participation the project owner needs to actively work with the design and construction team. And he further states that a project owner can enrich his/her personal experience and

Kalina, David

2007-01-01

263

A neutral object data model for integrated building design and construction environment  

Microsoft Academic Search

Construction and civil engineering projects include large numbers of design elements, materials, activities, in addition to a diversity of data types and complex relationships. The need to adopt appropriate representational schemes and database technologies that can handle complex data types and relationships continue to hinder the search for solutions to an integrated design-construction environment. This paper describes a scheme that

M. S. Kiwan; A. K. Munns

1996-01-01

264

Electronic Procurement Systems: An integrative model to explain Procurement Performance  

Microsoft Academic Search

Although electronic procurement systems (EPS) may foster superior company-level performance, their complexity and an accompanying need for commitment of a substantive amount of firms resources necessitate great care in their development and in the implementation process. Indeed, poorly managed implementation process could result in underachievement of the expected benefits. Our study focuses on fostering an effective EPS implementation processes through

A. M. Aguiar; K. Ramamurthy; A. P. Reis

2008-01-01

265

General design, construction, and operation guidelines: Constructed wetlands wastewater treatment systems for small users including individual residences  

SciTech Connect

A constructed wetlands system (CW) treats wastewater through natural water quality improvement processes (physical, chemical and biological) that occur in natural wetlands. Proper design, construction and operation of a CW optimize the processes. Treatment by CW can be effective, reliable, simple and relatively inexpensive as compared to conventional systems. CW systems can be built for wide flow ranges, including sources having relatively small flows (e.g., individual homes, small businesses and schools). A CW is an alternative for a small system where conventional on-site methods are ineffective due to poor site conditions (e.g., low soil percolation, shallow soils, high groundwater table, Karst topography). 4 figs.

Steiner, G.R.; Watson, J.T.; Choate, K.D.

1991-03-01

266

Designing WebQuests for an English for Construction Course  

Microsoft Academic Search

A WebQuest is one of the possible activities of Project Based Learning (PBL), based on constructivist approaches to learning. Project-based learning and the use of authentic tasks give the learning situation a purpose and meaning, especially when supplemented with technology. It is the aim of this paper to analyze the design of WebQuests and to present the design of a

Concepcin Orna Montesinos

267

Design and construction of a circular intensity differential scattering instrument  

SciTech Connect

An instrument has been designed and built which can measure the differential scattering of circularly polarized light as a function of angle about the scattering volume. The rationale for making these measurements is to investigate the long-range structure of large chiral, optically active molecules, or chiral aggregates of molecules. The design is based on the principle of electro-optic modulation and synchronous demodulation to recover scattered intensities from incident left and right circularly polarized laser light. Preliminary reproducible results that have been obtained on cholesteric liquid crystals are presented.

Katz, J.E.; Wells, S.; Ussery, D.; Bustamante, C.; Maestre, M.F.

1984-10-01

268

Using geotechnical engineering in pipeline design, construction. Part 1  

SciTech Connect

Geotechnical engineering plays a crucial role in any pipeline project in the areas of route selection, pipe-stress analysis, crossing design, and backfill selection. Early determination of the character of the rock, soil, swamp, and manmade-fill areas results in a safer, more economical pipeline system. Geologic faults, seismic activity, and groundwater conditions are all important project-planning considerations. Geotechnical exploration also identifies soil settlement and heave problems that could affect the design of facility foundations, pipe joints, flanges, and crossings.

Ahmed, S.; McMickle, R.W.

1981-02-01

269

The design and construction of a scour monitoring system  

NASA Astrophysics Data System (ADS)

A study is presented to investigate a magnetostrictive flow sensor for use in a scour monitoring system. Using a thin Galfenol "whisker" a sensor is constructed to detect the presence of water flow. Due to the desire for the whisker to respond dynamically rather than with just a quasi-static deflection when in a steady stream of flowing water, two configurations of the sensor are tested, one in which only the bare whisker is exposed to the water flow and one in which an unstable airfoil is fixed to the whisker. Three primary conclusions are inferred. First, the study confirms that Galfenol has the structural properties necessary to create a tactile sensor. Second it has been demonstrated that this tactile sensor is capable of being sensitive to water flow. Finally, it has been determined that alterations to the geometry of the whisker, specifically the addition of an unstable airfoil, can create the necessary dynamic response required for such a sensor.

Day, Steven R.; Flatau, Alison; Na, Suok Min; Swartz, R. A.

2014-04-01

270

Design and Construction of a Dense Plasma Focus Device.  

National Technical Information Service (NTIS)

This paper deals with the design of a dense plasma focus device as an engineering project. Essentially this approach can be summarized as follows: First, an introduction dealing with a general discussion of plasma devices focusing on the role of a dense p...

C. D. Hendricks D. L. Willenborg

1976-01-01

271

Design and Construction of a Realistic Digital Brain Phantom  

Microsoft Academic Search

After conception and implementation of any new medical image processing algorithm, validation is an important step to ensure that the procedure fulfils all requirements set forth at the initial design stage. Although the algorithm must be evaluated on real data, a comprehensive validation requires the additional use of simulated data since it is impossible to establish ground truth with in

D. Louis Collins; Alex P. Zijdenbos; Vasken Kollokian; John G. Sled; N. J. Kabani; Colin J. Holmes; Alan C. Evans

1998-01-01

272

Interdisciplinary approaches to job design: A constructive replication with extensions  

Microsoft Academic Search

This study replicated Campion and Thayefs (1985) research, which drew from many disciplines (e.g., psychology, engineering, human factors, physiology) to demonstrate four approaches to job design and their corresponding outcomes: motivational approach with satisfaction outcomes, mech- anistic approach with efficiency outcomes, biological approach with comfort outcomes, and percep- tual\\/motor approach with reliability outcomes. This study extended the research in five

Michael A. Campion

1988-01-01

273

Design and construction of a biominilab for biomedical research  

Microsoft Academic Search

The authors report the design of an integrated electronic system that supplies the necessary functions of biomedical research. The equipment comprises the following modules: an amplifier of bioelectrical signals with rechargeable batteries as the power source, an electric current injector, a clamp system, a cassette recorder converted to modulate frequency, a multiplexor for four-channel recording of slow bioelectrical signals, an

A. R. Zapata-Ferrer; C. Moncada-Jimenez; M. A. Aguillon-Pantaleon; F. Marquez-Cruz; J. M. Hernandez-J

1989-01-01

274

Magnetostatics Analysis, Design, and Construction of a Loudspeaker  

ERIC Educational Resources Information Center

Making a loudspeaker is a very rewarding hands-on activity that can be used to teach about electro-magnetism and sound waves. Several loudspeaker designs have been described in this magazine. The simplest loudspeaker has only a magnet, a coil, and three plastic cups. The simpler devices require a powerful amplified output, e.g., from a boom box.

Galeriu, Calin

2010-01-01

275

Design and Construction of a Wall-Climbing Robot.  

National Technical Information Service (NTIS)

The purpose of the paper is to design a Wall-Climbing Robot. The robot would use compressed air to achieve a safe attachment to vertical, curved surfaces. The robot would perform certain tasks including inspection of the aircraft fuselage in very hard to ...

S. M. Maari B. Bahr

1990-01-01

276

Design and Construction of a Wall-Climbing Robot.  

National Technical Information Service (NTIS)

A Wall-Climbing Robot was designed. The robot uses compressed air to achieve a safe attachment to vertical, curved surfaces. The robot performs certain tasks including inspection of the aircraft fuselage in very hard to reach areas by the human workers, r...

S. M. Maari

1990-01-01

277

Comparison of Constructed Wetland Mesocosms Designed for Treatment of Copper-Contaminated Wastewater  

Microsoft Academic Search

This study compared the performance of two constructed wetland mesocosms used to model a full-scale wetland system designed for treatment of copper-contaminated wastewater. One mesocosm (designated site-specific) was built near the construction site of the full-scale wetland using on-site soil, commercially available vegetation [Scirpus californicus (C.A. Meyer) Steud.], and water from the targeted wastestream. A second mesocosm (designated generic) was

Gladden

2001-01-01

278

Procurement and Evaluation of an Anechoic Chamber.  

National Technical Information Service (NTIS)

This report discusses methods to evaluate and to calibrate an anechoic chamber (indoor antenna range) and brings out the pitfalls that can be encountered in the procurement of an anechoic chamber. Procurement specifications for an anechoic chamber are als...

B. D. Rethmeyer W. A. Price

1964-01-01

279

Integrated Procurement Management System, Version II  

NASA Technical Reports Server (NTRS)

Integrated Procurement Management System, Version II (IPMS II) is online/ batch system for collecting developing, managing and disseminating procurementrelated data at NASA Johnson Space Center. Portions of IPMS II adaptable to other procurement situations.

Collier, L. J.

1985-01-01

280

Procurement Share versus Industry Share.  

National Technical Information Service (NTIS)

The study tested the hypothesis that the disparity between the small firm Federal procurement share and the small firm share of total sales was the result of a mix of goods and services purchased by the Federal Government which is skewed toward large busi...

J. G. Faucett J. Skolnik H. J. Chmelynski

1986-01-01

281

eProcurement for Industrial Maintenance Services  

Microsoft Academic Search

E-procurement solutions can deliver great cost-saving potential for purchasing. But services have not generally been considered\\u000a as a part of these cost-saving measures. The process of service procurement is often argued to be more complex and less standardized\\u000a than material procurement. In this paper we propose solutions and standards for service procurement.

Maik Herfurth; Axel Meinhardt; Jrg Schumacher; Peter Wei

2009-01-01

282

Working It out by Hand: Construction as a Creative Act--Most Students Are More Creative in Their Solutions without Seeing Materials or Examples First  

ERIC Educational Resources Information Center

In the world of project execution, "design/build" is the convention. With its emphasis on the benefits of early involvement (integration of design, engineering execution, design-build, procurement, and construction decisions), it has become the dominant mode (Rothman, 2004). In this project, students explore the design/build principle of

Luescher, Andreas; Kutz, K. Scott

2005-01-01

283

Design, construction, alignment, and calibration of a compact velocimetry experiment  

SciTech Connect

A velocimetry experiment has been designed to measure shock properties for small, cylindrical, metal targets (8 mm diameter 2 mm thick). A target is accelerated by high explosives, caught, then retrieved for later inspection. The target is expected to move at a velocity of 0.1 to 3 km/sec. The complete experiment canister is ~105 mm in diameter and 380 mm long. Optical velocimetry diagnostics include the Velocity Interferometer System for Any Reflector (VISAR) and photon Doppler velocimetry (PDV). The packaging of the velocity diagnostics is not allowed to interfere with the foam catchment or an X-ray imaging diagnostic. Using commercial lenses, a single optical relay collects Doppler-shifted light for both VISAR and PDV. The use of fiber optics allows measurement of point velocities on the target surface for accelerations lasting for 3 mm of travel. Operating at 532 nm, the VISAR has separate illumination fibers requiring alignment. The PDV diagnostic operates at 1550 nm but is aligned and calibrated at 670 nm. VISAR and PDV diagnostics are complimentary measurements that image spots in close proximity on the target surface. Because the optical relay uses commercial glass, optical fibers axial positions are offset to compensate for chromatic aberrations. The optomechanical design requires careful attention to fiber management, mechanical assembly and disassembly, foam catchment design, and X-ray diagnostic field of view.Calibration and alignment data are archived at each assembly sequence stage. The photon budgets for the VISAR and PDV diagnostics are separately estimated.

Kaufman, Morris I.; Malone, Robert M.; Frogget, Brent C.; Romero, Vincent T.; Esquibel, David L.; Iverson, Adam; Lare, Gregory A.; Briggs, Bart; DeVore, Douglas; Cata, Brian; McGillivray, Kevin; Palagi, Martin; et al.,

2007-08-31

284

Construction of aided design system of land consolidation planning on platform extended graph-element  

NASA Astrophysics Data System (ADS)

According to the actual situation of aided design system of land consolidation, the shortcomings of the traditional aided design software of land consolidation are concluded in the paper. And with the development of the technology of the computer aided design and software, the aided design system of land consolidation on the platform extended graph-element, which adopts the mature and advanced technologies of extended graph-element as well as parametric design, and displays geospatial phenomenon to the users by the interactive design technology with CAD, is constructed to improve the speed and quality of the design. Considering about the main problems of the current land consolidation aided design, following the practical and systematic design idea, functional modules of the land consolidation aided design are constructed, and the composition and the working process of each function module is described in details.

Liu, Li; Zou, Fengya; Zhou, Yu

2009-10-01

285

Design, construction and performance of a small, low cost anechoic measuring system for research applications  

Microsoft Academic Search

A low cost anechoic measuring system has been designed, constructed and evaluated. It consists of a small anechoic chamber, designed specifically for measurements of high performance feed horns within the range 18-30 GHz, and a simple antenna positioner. The chamber features hinged sides to ease relocation and improve access and is characterised by a simple aid low cost design in

D. Green; D. Smith

1995-01-01

286

Investigating the Effectiveness of Equating Designs for Constructed-Response Tests in Large-Scale Assessments  

ERIC Educational Resources Information Center

Using data from a large-scale exam, in this study we compared various designs for equating constructed-response (CR) tests to determine which design was most effective in producing equivalent scores across the two tests to be equated. In the context of classical equating methods, four linking designs were examined: (a) an anchor set containing

Kim, Sooyeon; Walker, Michael E.; McHale, Frederick

2010-01-01

287

EVALUATION OF DESIGN AND CONSTRUCTION PRACTICES OF REINFORCED CONCRETE BUILDINGS IN SAUDI ARABIA  

Microsoft Academic Search

The evaluation of design and construction practices is an essential step in the development of design code for reinforced concrete buildings in the Kingdom. This study was conducted specially for this purpose and comprise two major programs: (1) a survey program which covers the design and consultative practices offered by engineering offices, and quality control procedures adopted by ready-mix concrete

A. M. Arafah; R. Al-Zaid; M. Al-Haddad; G. H. Siddiqi; G. Al-Sulimani; F. Wafa

288

ITER Construction--Plant System Integration  

SciTech Connect

This brief paper introduces how the ITER will be built in the international collaboration. The ITER Organization plays a central role in constructing ITER and leading it into operation. Since most of the ITER components are to be provided in-kind from the member countries, integral project management should be scoped in advance of real work. Those include design, procurement, system assembly, testing, licensing and commissioning of ITER.

Tada, E. [ITER Organization Cadarache Center, 13108 St Paul lez Durance (France); Matsuda, S. [Japan Atomic Energy Research Agency, 100-0011, Chiyoda-ku, Tokyo (Japan)

2009-02-19

289

Semiconductor heterojunction photocatalysts: design, construction, and photocatalytic performances.  

PubMed

Semiconductor-mediated photocatalysis has received tremendous attention as it holds great promise to address the worldwide energy and environmental issues. To overcome the serious drawbacks of fast charge recombination and the limited visible-light absorption of semiconductor photocatalysts, many strategies have been developed in the past few decades and the most widely used one is to develop photocatalytic heterojunctions. This review attempts to summarize the recent progress in the rational design and fabrication of heterojunction photocatalysts, such as the semiconductor-semiconductor heterojunction, the semiconductor-metal heterojunction, the semiconductor-carbon heterojunction and the multicomponent heterojunction. The photocatalytic properties of the four junction systems are also discussed in relation to the environmental and energy applications, such as degradation of pollutants, hydrogen generation and photocatalytic disinfection. This tutorial review ends with a summary and some perspectives on the challenges and new directions in this exciting and still emerging area of research. PMID:24841176

Wang, Huanli; Zhang, Lisha; Chen, Zhigang; Hu, Junqing; Li, Shijie; Wang, Zhaohui; Liu, Jianshe; Wang, Xinchen

2014-07-01

290

Design, construction, alignment, and calibration of a compact velocimetry experiment  

NASA Astrophysics Data System (ADS)

A velocimetry experiment has been designed to measure shock properties for small cylindrical metal targets (8-mm-diameter by 2-mm thick). A target is accelerated by high explosives, caught, and retrieved for later inspection. The target is expected to move at a velocity of 0.1 to 3 km/sec. The complete experiment canister is approximately 105 mm in diameter and 380 mm long. Optical velocimetry diagnostics include the Velocity Interferometer System for Any Reflector (VISAR) and Photon Doppler Velocimetry (PDV). The packaging of the velocity diagnostics is not allowed to interfere with the catchment or an X-ray imaging diagnostic. A single optical relay, using commercial lenses, collects Doppler-shifted light for both VISAR and PDV. The use of fiber optics allows measurement of point velocities on the target surface during accelerations occurring over 15 mm of travel. The VISAR operates at 532 nm and has separate illumination fibers requiring alignment. The PDV diagnostic operates at 1550 nm, but is aligned and focused at 670 nm. The VISAR and PDV diagnostics are complementary measurements and they image spots in close proximity on the target surface. Because the optical relay uses commercial glass, the axial positions of the optical fibers for PDV and VISAR are offset to compensate for chromatic aberrations. The optomechanical design requires careful attention to fiber management, mechanical assembly and disassembly, positioning of the foam catchment, and X-ray diagnostic field-of-view. Calibration and alignment data are archived at each stage of the assembly sequence.

Kaufman, Morris I.; Malone, Robert M.; Frogget, Brent C.; Esquibel, David L.; Romero, Vincent T.; Lare, Gregory A.; Briggs, Bart; Iverson, Adam J.; Frayer, Daniel K.; DeVore, Douglas; Cata, Brian; Holtkamp, David B.; Wilke, Mark D.; King, Nick S. P.; Furlanetto, Michael R.; Briggs, Matthew E.; Furnish, Michael D.

2007-09-01

291

Design, Construction, Alignment, and Calibration of a Compact Velocimetry Experiment  

SciTech Connect

A velocimetry experiment has been designed to measure shock properties for small cylindrical metal targets (8-mm-diameter by 2-mm thick). A target is accelerated by high explosives, caught, and retrieved for later inspection. The target is expected to move at a velocity of 0.1 to 3 km/sec. The complete experiment canister is approximately 105 mm in diameter and 380 mm long. Optical velocimetry diagnostics include the Velocity Interferometer System for Any Reflector (VISAR) and Photon Doppler Velocimetry (PDV). The packaging of the velocity diagnostics is not allowed to interfere with the catchment or an X-ray imaging diagnostic. A single optical relay, using commercial lenses, collects Doppler-shifted light for both VISAR and PDV. The use of fiber optics allows measurement of point velocities on the target surface during accelerations occurring over 15 mm of travel. The VISAR operates at 532 nm and has separate illumination fibers requiring alignment. The PDV diagnostic operates at 1550 nm, but is aligned and focused at 670 nm. The VISAR and PDV diagnostics are complementary measurements and they image spots in close proximity on the target surface. Because the optical relay uses commercial glass, the axial positions of the optical fibers for PDV and VISAR are offset to compensate for chromatic aberrations. The optomechanical design requires careful attention to fiber management, mechanical assembly and disassembly, positioning of the foam catchment, and X-ray diagnostic field-of-view. Calibration and alignment data are archived at each stage of the assembly sequence.

Kaufman, Morris I.; Malone, Robert M.; Frogget, Brent C.; Esquibel, David L.; Romero, Vincent T.; Lare, Gregory A.; Briggs, Bart; Iverson, Adam J.; Frayer, Daniel K.; DeVore, Douglas; Cata, Brian

2007-09-21

292

Safety and environmental process for the design and construction of the National Ignition Facility  

SciTech Connect

The National Ignition Facility (NIF) is a U.S. Department of Energy (DOE) laser fusion experimental facility currently under construction at the Lawrence Livermore National Laboratory (LLNL). This paper describes the safety and environmental processes followed by NIF during the design and construction activities.

Brereton, S.J., LLNL

1998-05-27

293

The SOUDAN 2 detector The design and construction of the tracking calorimeter modules  

Microsoft Academic Search

SOUDAN 2 is a 960-ton tracking calorimeter which has been constructed to search for nucleon decay and other phenomena. The full detector consists of 224 calorimeter modules each weighing 4.3 tons. The design and construction of the modules are described. The modules consist of finely segmented iron instrumented with 1 m long drift tubes of 15 mm internal diameter. The

W. W. M. Allison; G. J. Alner; I. Ambats; D. S. Ayres; L. J. Balka; G. D. Barr; W. L. Barrett; D. Benjamin; C. Bode; P. M. Border; C. B. Brooks; J. H. Cobb; D. J. A. Cockerill; K. Coover; R. J. Cotton; H. Courant; B. B. Dahlin; U. Dasgupta; J. W. Dawson; D. M. Demuth; V. W. Edwards; B. Ewen; T. H. Fields; C. Garcia-Garcia; H. M. Gallagher; R. H. Giles; G. L. Giller; M. C. Goodman; R. N. Gray; S. Heppelmann; N. Hill; J. H. Hoftiezer; D. J. Jankowski; K. Johns; T. Joyce; T. Kafka; S. M. S. Kasahara; L. M. Kirby-Gallagher; J. Kochocki; W. Leeson; P. J. Litchfield; N. P. Longley; F. V. Lopez; M. J. Lowe; W. A. Mann; M. L. Marshak; E. N. May; D. Maxam; L. McMaster; R. Milburn; W. H. Miller; C. P. Minor; N. Mondal; L. Mualem; A. Napier; E. M. Nelson; R. Nickson; W. Oliver; G. F. Pearce; D. H. Perkins; E. A. Peterson; L. E. Price; D. M. Roback; D. B. Rosen; K. Ruddick; B. Saitta; D. J. Schmid; J. Schlereth; J. Schneps; M. H. Schub; R. V. Seidlein; P. D. Shield; M. A. Shupe; S. Spear; A. Stassinakis; N. Sundaralingam; M. A. Thomson; J. L. Thron; V. Vassiliev; G. Villaume; S. P. Wakely; D. Wall; E. W. G. Wallis; L. Weems; S. J. Werkema; U. Wielgosz; C. A. Woods; S. Yarker

1996-01-01

294

Design, construction, prototype tests and performance of a vertex chamber for the MAC detector  

Microsoft Academic Search

The design considerations, construction techniques, prototype tests and performance characteristics of a pressurized drift chamber used in the MAC detector at PEP are described. The chamber consists of 324 aluminized mylar tubes of 6.9 mm diameter with wall thickness of 100 mum. With appropriate shielding it operates successfully at 4.6 cm from the beam line. It was simple to construct

W. W. Ash; H. R. Band; E. D. Bloom; M. Bosman; T. Camporesi; G. B. Chadwick; M. C. Delfino; R. de Sangro; W. T. Ford; M. W. Gettner; G. P. Goderre; G. L. Godfrey; D. E. Groom; R. B. Hurst; J. R. Johnson; K. H. Lau; T. L. Lavine; R. E. Leedy; I. Lippi; T. Maruyama; R. L. Messner; J. H. Moromisato; L. J. Moss; F. Muller; H. N. Nelson; I. Peruzzi; M. Piccolo; R. Prepost; J. Pyrlik; N. Qi; A. L. Read; D. M. Ritson; L. J. Rosenberg; W. D. Shambroom; J. C. Sleeman; J. G. Smith; J. P. Venuti; P. G. Verdini; E. von Goeler; H. B. Wald; R. Weinstein; D. E. Wiser; R. W. Zdarko

1987-01-01

295

DESIGN AND CONSTRUCTION OF A REINFORCEMENT FREE CONCRETE BRIDGE DECK ON PRECAST BULB TEE GIRDERS  

Microsoft Academic Search

This presentation describes the concepts involved in design and construction of a reinforcement-free bridge deck intended to provide cost effective, durable and more rapid construction for highway bridges. The new wide flanged or bulb tee precast prestressed concrete girder sections currently used in bridges allow for a shorter effective span for the bridge deck because of the wide girder flanges.

Michael G. Oliva; Lawrence C. Bank; Jeffrey S. Russell; James W. Carter; Scot Becker

296

Design, construction and performance prediction of integrated solar roof collectors using finite element analysis  

Microsoft Academic Search

An integrated roof solar collector was designed to achieve ease of construction, energy efficiency, functional integration, composite behavior, sustainability, reliability, flexibility, and cost effectiveness. A construction strategy was developed for the collector to ensure quality, ease and repeatability of manufacturing. Three-dimensional (3D) finite element models were then developed to evaluate the thermal performance of the integrated roof solar collector. The

Marwa M. Hassan; Yvan Beliveau

2007-01-01

297

Precision resistors: a review of material characteristics, resistor design, and construction practices  

Microsoft Academic Search

An understanding of the properties of resistance materials and of the effects on resistor characteristics of construction practice is necessary to assure optimum application. Reviewed are some of the characteristics of moderate-precision film resistors, the nature of the principal high performance resistance alloys and the design and construction of high-precision resistors. The effects of resistor termination and terminals are also

David W. Braudaway

1999-01-01

298

Current views of health care design and construction: Practical implications for safer, cleaner environments  

Microsoft Academic Search

Infection preventionists (IP) play an increasingly important role in preventing health care-associated infection in the physical environment associated with new construction or renovation of health care facilities. The Guidelines for Design and Construction of Hospital and Healthcare Facilities, 2010, formerly known as ''AIA Guidelines'' was the origin of the ''infection control risk assess- ment'' now required by multiple agencies. These

Judene M. Bartley; Russell N. Olmsted; Janet Haas

2010-01-01

299

Demonstration Project 103: Design and Construction Monitoring of Soil Nail Walls. Project Summary Report.  

National Technical Information Service (NTIS)

The purpose of Demonstration Project 103 was to introduce the concept of soil nailing use into the American transportation construction practice. The Manual for Design and Construction Monitoring of Soil Nail Walls (FHWA-SA-96-069R) and Soil Nailing Field...

S. Singla

1999-01-01

300

Surface Rehabilitation Techniques: State of the Practice Design, Construction and Performance of Micro-Surfacing.  

National Technical Information Service (NTIS)

This document is a comprehensive overview of the terminology, design, construction, application, and performance of micro-surfacing paving technology. This technology consists of polymer-modified asphalt emulsion, 100 percent crushed aggregate, mineral fi...

1994-01-01

301

46 CFR 162.027-2 - Design, construction, testing and marking requirements.  

Code of Federal Regulations, 2010 CFR

...ENGINEERING EQUIPMENT Combination Solid Stream and Water Spray Firehose Nozzles § 162.027-2 Design, construction, testing...requirements. (a) Each combination solid stream and water spray firehose nozzle required to be approved under the provisions of...

2009-10-01

302

46 CFR 162.027-2 - Design, construction, testing and marking requirements.  

Code of Federal Regulations, 2010 CFR

...ENGINEERING EQUIPMENT Combination Solid Stream and Water Spray Firehose Nozzles § 162.027-2 Design, construction, testing...requirements. (a) Each combination solid stream and water spray firehose nozzle required to be approved under the provisions of...

2010-10-01

303

Design and Construction of the NMSU (New Mexico State University) Geothermally Heated Greenhouse Research Facility.  

National Technical Information Service (NTIS)

The report describes the design, construction and performance of the New Mexico State University (NMSU) Geothermal Greenhouse Research Facility. Two 6,000-square-foot greenhouses were built on the NMSU campus and supplied with geothermal energy for heatin...

R. Schoenmackers

1988-01-01

304

Forensic Science Laboratories: Handbook for Facility Planning, Design, Construction, and Relocation.  

National Technical Information Service (NTIS)

This revised handbook is intended to serve as a resource for laboratory directors, designers, consultants, and other stakeholders involved in the construction or major renovation of forensic science laboratories. Each laboratory will have its own unique n...

2013-01-01

305

46 CFR 161.010-2 - Design, construction, and test requirements.  

Code of Federal Regulations, 2013 CFR

...AND MATERIALS: SPECIFICATIONS AND APPROVAL ELECTRICAL EQUIPMENT Floating Electric Waterlight § 161.010-2 Design, construction, and test requirements. Each floating electric waterlight shall meet the requirements of ANSI/UL...

2013-10-01

306

Design and construction of 1064-nm liquid-crystal laser cavity end mirrors  

SciTech Connect

We describe the design and construction of cholesteric liquid-crystal elements for laser cavity end mirror applications and we give the Jones matrix (J. Opt. Soc. Am. {bold 31}, 488 (1941)) representation of these devices.

Lee, J.; Jacobs, S.D. (Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623-1299 (USA))

1990-12-15

307

Fire Safety in Housing. A Manual of Recommended Design and Construction Practice.  

National Technical Information Service (NTIS)

Recommended design and construction practices to eliminate fire hazards in housing are described. The applicability of the recommended practices is limited to single - family and multifamily residences; housing for the elderly, motels and hotels, and dorm...

1975-01-01

308

Design, Construction and Testing of a Self-Powered Neutron Detector.  

National Technical Information Service (NTIS)

The design, construction and testing of a self-powered neutron detector (SPN) and associated electronics are described. Several tests were performed giving information about dielectrical properties of detector and cable, gamma spectra induced in the detec...

R. F. Correa

1987-01-01

309

Design, construction and evaluation of universal friction tester  

NASA Astrophysics Data System (ADS)

Many different types of friction testers are currently available for testing specific frictional applications. Of these machines very few have versatility, and of the ones that do, the amount of versatility is limited. Since friction is a property specific to each system, all operating parameters need to match the specific application as closely as possible in order to obtain accurate data. This requires many research facilities to have several specific friction testers in order to provide the necessary testing capabilities. The goal of this project was to design a Universal Friction Tester (UFT) with enough versatility to reproduce most types of sliding friction situations. This was accomplished by providing a wide range of testing capabilities through the use of interchangeable system components. Results show that the UFT provides quality data over its entire operating range. It was shown that normal pressure, sliding speed, temperature and system stiffness all have drastic effects on frictional performance. By using a borosilicate glass disc, the friction surface was viewed in-situ during testing. This allowed insights into true surface temperature and contact area. In conclusion, the UFT can successfully take the place of several friction testers and thus provide many friction research capabilities while requiring fewer resources. The wide range of testing capabilities will allow the UFT to be used as a research tool for many types of advanced friction studies. Some of these may include true surface temperatures, true contact area, influence of conditions on stick-slip phenomenon, and thermo-elastic instabilities.

Boone, Jacob

310

Design and construction of CPW fed circular microstrip patch antennas  

NASA Astrophysics Data System (ADS)

In this paper, we present feeding approaches of coplanar waveguide fed (CPW) circular microstrip patch antennas, with and without defected ground structure (DGS)`. The antenna feeding impedance is proposed as 50 ohms, built over FR4, a high dielectric constant substrate to obtain broad impedance bandwidth along with stability of the radiation patterns. The antenna with defected ground structure is designed to have band-notched characteristics at 3.5 GHz (for Wi-MAX band-3.3 to 3.7 GHz), at 8.2 GHz (for ITU band-8.025 GHz to 8.4 GHz) so as to avoid interference from these. The FR4 is used as dielectric with value of dielectric loss tangent constant as 0.002 and relative permittivity with 4.4. After applying DGS in ground of the proposed antenna there were improvements concerning bandwidth, and also a small increase in gain was noticed. These antennas are of small sizes with dimensions; 30 mm X 43 mm X 1.6 mm, cheap, compact and easy to fabricate, and achieve good radiation characteristics with higher return loss. This first antenna can have wide application in a great variety of wireless communication and second can operate well as UWB antenna with band notched characteristics. The performance of two antennas is compared in respect to gain, VSWR, return loss and impedance matching.

Vyas, Kirti; Singhal, P. K.; Sharma, A. K.; Pal, Manisha

2013-01-01

311

Farmers' perceptions of local food procurement, Mississippi, 2013.  

PubMed

We sought to understand the experiences and perceptions of food producers regarding food procurement programs for local institutions. A total of 72 (45%) Mississippi fruit and vegetable growers completed a mailed survey, and of those that reported selling to local businesses and institutions (54%), few were selling to schools (13%). The primary motivations to sell to institutions were to increase profits (67%) and to improve nutrition within their communities (57%), while the most commonly reported barrier was a lack of knowledge about how to sell to institutions (39%). Farm to institution programs must develop evidence-based practices designed to address barriers to producers' participation in local institutional food procurement programs. PMID:24967828

Rosenberg, Nathan; Truong, Nhan L; Russell, Tyler; Abdul-Haqq, Deja; Gipson, June A; Hickson, DeMarc A

2014-01-01

312

Farmers' Perceptions of Local Food Procurement, Mississippi, 2013  

PubMed Central

We sought to understand the experiences and perceptions of food producers regarding food procurement programs for local institutions. A total of 72 (45%) Mississippi fruit and vegetable growers completed a mailed survey, and of those that reported selling to local businesses and institutions (54%), few were selling to schools (13%). The primary motivations to sell to institutions were to increase profits (67%) and to improve nutrition within their communities (57%), while the most commonly reported barrier was a lack of knowledge about how to sell to institutions (39%). Farm to institution programs must develop evidence-based practices designed to address barriers to producers participation in local institutional food procurement programs.

Rosenberg, Nathan; Truong, Nhan L.; Russell, Tyler; Abdul-Haqq, Deja; Gipson, June A.

2014-01-01

313

Design and Construction of the Final Focus Quadrupole R&D Magnet for Super-KEKB  

Microsoft Academic Search

For upgrading the electron-positron collider KEKB, the final focusing magnet system in the beam interaction region has been studied. The designed magnet system consists of five su- perconductingandthreepermanentquadrupolemagnets.Asuper- conducting quadrupole magnet has been constructed as the R&D of this system. In this paper, design and construction of this R&D magnet are reported. Index TermsDirect winding coil, final focus quadrupole, inter-

Norihito Ohuchi; Kiyosumi Tsuchiya; Masafumi Tawada; Norio Higashi; Masako Iwasaki; Zhanguo Zong

2011-01-01

314

Model-based design of horizontal subsurface flow constructed treatment wetlands: a review  

Microsoft Academic Search

The increasing application of constructed wetlands for wastewater treatment coupled with increasingly strict water quality standards is an ever growing incentive for the development of better process design tools. This paper reviews design models for horizontal subsurface flow constructed treatment wetlands, ranging from simple rules of thumb and regression equations, to the well-known first-order k-C* models, Monod-type equations and more

Diederik P. L. Rousseau; Peter A. Vanrolleghem; Niels De Pauw

2004-01-01

315

Design and Construction of Wetlands for Aqueous Transfers and Transformations of Selected Metals  

Microsoft Academic Search

Two pilot-scale wetland cells (6.1 30.5 m) were integratively designed and constructed to emphasize and enhance transfers and transformations of selected metals (Cu, Pb, and Zn) in an aqueous matrix. A series of preliminary experiments and analyses were conducted to select macrofeatures (hydroperiod, hydrosoil, and vegetation) of the constructed wetland system. These wetland cells were designed to operate in

W. Bradley Hawkins; John H. Rodgers; W. B. Gillespie; A. W. Dunn; P. B. Dorn; M. L. Cano

1997-01-01

316

Toward a Framework for Dynamic Service Binding in E-Procurement  

NASA Astrophysics Data System (ADS)

In an online environment, an E-Procurement process should be able to react and adapt in near real-time to changes in suppliers, requirements, and regulations. WS-BPEL is an emerging standard for process automation, but is oriented towards design-time binding of services. This missing issue can be resolved through designing an extension to WS-BPEL to support automation of flexible e-Procurement processes. Our proposed framework will support dynamic acquisition of procurement services from different suppliers dealing with changing procurement requirements. The proposed framework is illustrated by applying it to health care where different health insurance providers could be involved to procure the medication for patients.

Ashoori, Maryam; Eze, Benjamin; Benyoucef, Morad; Peyton, Liam

317

A Theoretical Construct of Serious Play and the Design of a Tangible Social Interface  

NASA Astrophysics Data System (ADS)

To construct is to creatively invent one's world by engaging in creative decision-making, problem solving, and negotiation. The metaphor of construction is used to demonstrate how a simple artifact - a building blockw can be used to facilitate the exploration of personal narratives. This chapter presents an argument for the development of tangible social interfaces and interaction design practices that are informed by the premises of twentieth century philosophical and cultural theories. Specifically, this chapter explores the historical notion of the role of play in constructing a civic society. The constructed narratives' electronic construction kit is introduced as an example of research and development of a critical creative technology built on a wireless ad hoc 802.15.4 network platform. The game is designed to support collaborative play and learning.

Jennings, Pamela L.

318

Design, construction and testing of a liquid-heating flat-plate solar collector  

SciTech Connect

The purpose of this study was to design, construct, and test a liquid-heating flat-plate solar collector. From the literature search, information was gathered concerning the basic components of the collector, the different processes and materials that can be used in the construction of these components, and their advantages and disadvantages. The literature search also revealed a method used to measure the performance of the collector in terms of efficiency and heat output. Design considerations were then listed for each of the major components as well as the collector as a single unit. Then, each component was designed, taking into consideration the final assembly of the completed unit. Detailed designs were required for the absorber plate and the box and frame assembly because of their complexity in construction and assembly. Once the components were designed, the construction details were arranged in a logical sequence, again considering the final assembly of the unit. The collector was then carefully constructed and assembled following the design details. After the solar collector was assembled completely, tests were made, data were obtained and recorded, and a collector performance curve was developed.

Tuttle, R E

1980-02-01

319

Design and Construction of Simple, Nitrogen-Laser-Pumped, Tunable Dye Lasers  

ERIC Educational Resources Information Center

The basic physical principles of dye lasers are discussed and used to analyze the design and operation of tunable dye lasers pumped by pulsed nitrogen lasers. Details of the design and construction of these dye lasers are presented. Some simple demonstration experiments are described. (BB)

Hilborn, Robert C.

1978-01-01

320

Renewable Energy Technologies for Designing and Constructing Low-Energy Commercial Buildings.  

National Technical Information Service (NTIS)

The Thermal Test Facility (TTF) at the National Renewable Energy Laboratory (NREL) in Golden, Colorado, was designed and constructed using a whole-building energy design approach. This approach treats a building as a single unit, not as a shell containing...

S. J. Hayter M. M. Jenior R. Judkoff M. S. Ketcham P. A. Torcellini

1998-01-01

321

Cyclone-Resistant Rural Primary School Construction - A Design Guide. Educational Building Report 7.  

ERIC Educational Resources Information Center

One of a series of documents on design of disaster-resistant buildings, this publication treats construction of rural primary schools to resist destruction by wind and water from cyclones. Also appropriate for other buildings, material is aimed at rural primary schools because they are less likely to be professionally designed or supervised; the

Sinnamon, Ian T.; Loo, G. A. van't

322

Getting Students REALLY Involved in Design and Construction--Are You Mad?  

ERIC Educational Resources Information Center

Involve students in the design and construction stages of new schools?--"Are you serious?" "Leave it to the experts", "We don't have time--the programme is very tight", "What do they know?", "They'll get in the way!", "It's not our job!" are still responses from some involved with design and build of new learning spaces. However, experience shows

Long, Gareth; Watson, Alison

2011-01-01

323

Risk Analysis for Design-Build Construction Projects: A Simplified Approach  

Microsoft Academic Search

Construction Projects are being implemented under different contract systems in the Midwest. Negotiated design-build has been a popular contract system in recent years. It provides various advantages through entailing the contractor to be responsible for the whole project. However, design-build turns out to be risky system for both owners and contractors unless the risks are identified, quantified and analyzed through

Mohamed El-Gafy

324

Surface Rehabilitation Techniques: Design, Construction, and Performance of Micro-Surfacing. Instructor's Guide.  

National Technical Information Service (NTIS)

This instructor's guide is designed for a 2 to 4 hour long workshop on design, construction, and performance of micro-surfacing. This workshop will be useful to Federal Highway Administration (FHWA), State, and local highway agency engineers who require k...

H. Raza

1994-01-01

325

The design, construction, and operation of the Integrated Radwaste Treatment System (IRTS) Drum Cell  

Microsoft Academic Search

This report describes the design, construction, and the operation of the Integrated Radwaste Treatment Systems (IRTS) Drum Cell at the West Valley Demonstration Project (WVDP), West Valley, New York. The IRTS Drum Cell was designed to provide a shielded, secure storage area for the remote handling and placement of low-level Class C radioactive waste produced in the IRTS. The Drum

B. Landau; A. Russillo; D. Frank; D. Garland

1989-01-01

326

Design and construction of earth retaining walls for deep excavation a risk management process  

Microsoft Academic Search

TR26: 2010: Technical Reference for Deep Excavation requires a detailed assessment of buildings in proximity to the site. The requirement is an important part of a risk management process for the design of temporary works for deep excavations. This paper will present the key elements of the risk management process for design and construction. It will demonstrate that the risk

Paul Fok; Bian Hong Neo; Dazhi Wen; Chepurthy Veeresh

2012-01-01

327

Constructed wetlands for river reclamation: Experimental design, start-up and preliminary results  

Microsoft Academic Search

The use of constructed wetlands for the treatment of secondary effluents, to allow for safe river discharge, was the subject of a research project carried out at the Alexander River basin in Israel. Four pilot-scale units, each about 100 m2, were built: two were designed for subsurface flow with gravel as the medium and two units were designed for free

Michal Green; Iris Safray; Moshe Agami

1996-01-01

328

RADON PREVENTION IN THE DESIGN AND CONSTRUCTION OF SCHOOLS AND OTHER LARGE BUILDINGS  

EPA Science Inventory

The paper discusses radon prevention in the design and construction of schools and other large buildings. ased on studies in progress for the past 3 years, the U.S. EPA's Office of Research and Development (ORD) has started incorporating radon control measures into the design and...

329

Analysis of knowledge-based expert systems as tools for construction design  

NASA Astrophysics Data System (ADS)

Because construction costs are continuously rising, Congress mandated that those within the respective branches of military service who are responsible for planning and executing construction programs develop policies and procedures that ensure that the individual projects are designed, bid, and constructed as rapidly as possible. This requires an approach that demands maximum efficiency from the design process. Reviews are necessary to ensure that designs meet all requirements, but the reviews themselves must be conducted in the least amount of time so as to preclude delays. Design tools that increases efficiency are knowledge-based expert systems which are interactive computer programs that incorporate judgement, experience, rules of thumb, and other expertise, so as to provide knowledgeable advice about a specific domain. They mimic the thought process employed by a human expert in solving a problem.

Cole, Arthur N.

1991-03-01

330

A review on removing pharmaceutical contaminants from wastewater by constructed wetlands: design, performance and mechanism.  

PubMed

This paper presents a comprehensive review of the current state of research activities on the application of constructed wetlands for removing pharmaceutical contaminants from wastewater. The focus of the review was placed on the application of constructed wetlands as an alternative secondary wastewater treatment system or as a wastewater polishing treatment system. The design parameters of the reported constructed wetlands including the physical configuration, hydraulic mode, vegetation species, and targeting pharmaceuticals were summarized. The removal efficiencies of pharmaceuticals under different conditions in the wetlands were evaluated at the macroscopic level. In addition, the importance of the three main components of constructed wetlands (substrate, plants and microbes) for pharmaceutical removal was analyzed to elucidate the possible removal mechanisms involved. There is a general consensus among many researchers that constructed wetlands hold great potential of being used as an alternative secondary wastewater treatment system or as a wastewater polishing treatment system for the removal of pharmaceuticals, but relevant reported studies are scarce and are not conclusive in their findings. Current knowledge is limited on the removal efficiencies of pharmaceuticals in constructed wetlands, the removal mechanisms involved, the toxicity to constructed wetlands caused by pharmaceuticals, and the influences of certain important parameters (configuration design, hydraulic mode, temperature and seasonality, pH, oxygen and redox potential, etc.). This review promotes further research on these issues to provide more and better convincing evidences for the function and performance of larger laboratory-scale, pilot-scale or full-scale constructed wetlands. PMID:24091118

Li, Yifei; Zhu, Guibing; Ng, Wun Jern; Tan, Soon Keat

2014-01-15

331

International overview of hospital procurement.  

PubMed

This article was written by four French hospital director students at the Ecole des Hautes Etudes en Sant Publique (EHESP-School of Public Health) from a study conducted jointly with students at the Grenoble School of Management to present an international overview of hospital procurement methods in ten countries. An analysis of these methods showed that there was a general trend towards group purchasing, with some common aims in terms of costs and performance and some differences in legislation (competition), size of the public sector and centralization or decentralization. PMID:21675632

Ferrier, Maud; Lariviere, David; Laurent, Claire; Roque, Eric

2011-01-01

332

Public Procurement Auctions and Competition in Turkey  

Microsoft Academic Search

This paper empirically investigates the effect of the competitive environment (number of participants) on the cost of procurement.\\u000a We use a unique dataset provided by the Public Procurement Authority (PPA) of Turkey that covers all of the government procurement auctions for the years 20042006. First, after controlling for possible endogeneity, we show\\u000a that the number of bidders significantly and negatively

?lke Onur; Rasim zcan; Bedri Kamil Onur Ta?

2012-01-01

333

Hydrogen production by high temperature, high pressure water electrolysis. III - Design and construction of test plant  

Microsoft Academic Search

The design and construction of a test plant of hydrogen capacity 4 cu Nm\\/hour based on high-temperature, high-pressure water electrolysis which was built to obtain technical data for the construction of a 20-cu Nm\\/hour pilot plant are outlined. The test plant is a forced circulation system comprised of an electrolyzer, electrolyte circulation line, gas-liquid separator, hydrogen\\/oxygen production gas line, measurement

Y. Kajiwara; S. Maezawa; K. Matsunaga

1981-01-01

334

40 CFR 35.6565 - Procurement methods.  

Code of Federal Regulations, 2013 CFR

...LOCAL ASSISTANCE Cooperative Agreements and Superfund State Contracts for Superfund Response Actions Procurement Requirements Under...necessarily constitute an emergency under the EPA Superfund program's criteria); (iii) The...

2013-07-01

335

Understanding public drug procurement in India: a comparative qualitative study of five Indian states  

PubMed Central

Objective To perform an initial qualitative comparison of the different procurement models in India to frame questions for future research in this area; to capture the finer differences between the state models through 53 process and price parameters to determine their functional efficiencies. Design Qualitative analysis is performed for the study. Five states: Tamil Nadu, Kerala, Odisha, Punjab and Maharashtra were chosen to ensure heterogeneity in a number of factors such as procurement type (centralised, decentralised or mixed); autonomy of the procurement organisation; state of public health infrastructure; geography and availability of data through Right to Information Act (RTI). Data on procurement processes were collected through key informant analysis by way of semistructured interviews with leadership teams of procuring organisations. These process data were validated through interviews with field staff (stakeholders of district hospitals, taluk hospitals, community health centres and primary health centres) in each state. A total of 30 actors were interviewed in all five states. The data collected are analysed against 52 process and price parameters to determine the functional efficiency of the model. Results The analysis indicated that autonomous procurement organisations were more efficient in relation to payments to suppliers, had relatively lower drug procurement prices and managed their inventory more scientifically. Conclusions The authors highlight critical success factors that significantly influence the outcome of any procurement model. In a way, this study raises more questions and seeks the need for further research in this arena to aid policy makers.

Singh, Prabal Vikram; Tatambhotla, Anand; Kalvakuntla, Rohini; Chokshi, Maulik

2013-01-01

336

Design and Construction Solutions in the Accurate Realization of NCSX Magnetic Fields  

SciTech Connect

The National Compact Stellarator Experiment, NCSX, is being constructed at the Princeton Plasma Physics Laboratory (PPPL) in partnership with the Oak Ridge national Laboratory. The goal of NCSX is to provide the understanding necessary to develop an attractive, disruption free, steady state compact stellaratorbased reactor design. This paper describes the recently revised designs of the critical interfaces between the modular coils, the construction solutions developed to meet assembly tolerances, and the recently revised trim coil system that provides the required compensation to correct for the as built conditions and to allow flexibility in the disposition of as-built conditions. In May, 2008, the sponsor decided to terminate the NCSX project due to growth in the projects cost and schedule estimates. However significant technical challenges in design and construction were overcome, greatly reducing the risk in the remaining work to complete the project.

Heitzenroeder, P.; Dudek, Lawrence E.; Brooks, Arthur W.; Viola, Michael E.; Brown, Thomas; Neilson, George H.; Zarnstorff, Michael C.; Rej, Donald; Cole,Michael J.; Freudenberg, Kevin D.; Harris J. H.; McGinnis, Gary

2008-09-29

337

Designable DNA-binding domains enable construction of logic circuits in mammalian cells.  

PubMed

Electronic computer circuits consisting of a large number of connected logic gates of the same type, such as NOR, can be easily fabricated and can implement any logic function. In contrast, designed genetic circuits must employ orthogonal information mediators owing to free diffusion within the cell. Combinatorial diversity and orthogonality can be provided by designable DNA- binding domains. Here, we employed the transcription activator-like repressors to optimize the construction of orthogonal functionally complete NOR gates to construct logic circuits. We used transient transfection to implement all 16 two-input logic functions from combinations of the same type of NOR gates within mammalian cells. Additionally, we present a genetic logic circuit where one input is used to select between an AND and OR function to process the data input using the same circuit. This demonstrates the potential of designable modular transcription factors for the construction of complex biological information-processing devices. PMID:24413461

Gaber, Rok; Lebar, Tina; Majerle, Andreja; ter, Branko; Dobnikar, Andrej; Ben?ina, Mojca; Jerala, Roman

2014-03-01

338

Advanced insulations for refrigerator/freezers: The potential for new shell design incorporating polymer barrier construction  

NASA Astrophysics Data System (ADS)

The report examines domestic refrigerator/freezer (R/F) design alternatives which may offer greater increase in thermal performance than is possible with panel/foam composites. (NOTE: Current efforts to design and build R/Fs with high performance insulation technology are directed at using vacuum panels in a composite with polymer foam to improve performance; however, certain restrictions generally enable only relatively small improvement in thermal resistance using these techniques.) These design alternatives involve basic redesign of the R/F and use of alternative materials of construction. One design alternative includes use of a polymer outer shell material component that incorporates in its construction an advanced insulation technology that reduces thermal bridging and edge losses. Computer modelling of a R/F door incorporating the concept shows a doubling of effective thermal resistance over conventional R/F designs. The report also addresses materials and manufacturing technologies needed to fabricate polymer barrier advanced insulation components for R/Fs.

Griffith, B.; Arasteh, D.

1993-01-01

339

Design and construction of a remote piloted flying wing. B.S. Thesis  

NASA Technical Reports Server (NTRS)

Currently, there is a need for a high-speed, high-lift civilian transport. Although unconventional, a flying wing could fly at speeds in excess of Mach 2 and still retain the capacity of a 747. The design of the flying wing is inherently unstable since it lacks a fuselage and a horizontal tail. The project goal was to design, construct, fly, and test a remote-piloted scale model flying wing. The project was completed as part of the NASA/USRA Advanced Aeronautics Design Program. These unique restrictions required us to implement several fundamental design changes from last year's Elang configuration including wing sweepback and wingtip endplates. Unique features such as a single ducted fan engine, composite structural materials, and an electrostatic stability system were incorporated. The result is the Banshee '94. Our efforts will aid future projects in design and construction techniques so that a viable flying wing can become an integral part of the aviation industry.

Costa, Alfred J.; Koopman, Fritz; Soboleski, Craig; Trieu, Thai-Ba; Duquette, Jaime; Krause, Scott; Susko, David; Trieu, Thuyba

1994-01-01

340

Design and implementation of an identification system in construction site safety for proactive accident prevention.  

PubMed

Identifying accident precursors using real-time identity information has great potential to improve safety performance in construction industry, which is still suffering from day to day records of accident fatality and injury. Based on the requirements analysis for identifying precursor and the discussion of enabling technology solutions for acquiring and sharing real-time automatic identification information on construction site, this paper proposes an identification system design for proactive accident prevention to improve construction site safety. Firstly, a case study is conducted to analyze the automatic identification requirements for identifying accident precursors in construction site. Results show that it mainly consists of three aspects, namely access control, training and inspection information and operation authority. The system is then designed to fulfill these requirements based on ZigBee enabled wireless sensor network (WSN), radio frequency identification (RFID) technology and an integrated ZigBee RFID sensor network structure. At the same time, an information database is also designed and implemented, which includes 15 tables, 54 queries and several reports and forms. In the end, a demonstration system based on the proposed system design is developed as a proof of concept prototype. The contributions of this study include the requirement analysis and technical design of a real-time identity information tracking solution for proactive accident prevention on construction sites. The technical solution proposed in this paper has a significant importance in improving safety performance on construction sites. Moreover, this study can serve as a reference design for future system integrations where more functions, such as environment monitoring and location tracking, can be added. PMID:22664682

Yang, Huanjia; Chew, David A S; Wu, Weiwei; Zhou, Zhipeng; Li, Qiming

2012-09-01

341

Design and construction of large-panel concrete structures. Report 6: Design methodology  

Microsoft Academic Search

The structural integrity of large panel concrete buildings under abnormal conditions is considered with emphasis on the importance of the design strengths of large panel structures and their individual elements. Topics covered include the scope, limitations, and definitions involved in the design methodology; some general considerations of analysis and design; and minimum requirements for integrity. Foundations, floor and roof elements,

D. M. Schultz

1979-01-01

342

Review of Qualitative Approaches for the Construction Industry: Designing a Risk Management Toolbox  

PubMed Central

Objectives This paper presents the framework and protocol design for a construction industry risk management toolbox. The construction industry needs a comprehensive, systematic approach to assess and control occupational risks. These risks span several professional health and safety disciplines, emphasized by multiple international occupational research agenda projects including: falls, electrocution, noise, silica, welding fumes, and musculoskeletal disorders. Yet, the International Social Security Association says, "whereas progress has been made in safety and health, the construction industry is still a high risk sector." Methods Small- and medium-sized enterprises (SMEs) employ about 80% of the world's construction workers. In recent years a strategy for qualitative occupational risk management, known as Control Banding (CB) has gained international attention as a simplified approach for reducing work-related risks. CB groups hazards into stratified risk 'bands', identifying commensurate controls to reduce the level of risk and promote worker health and safety. We review these qualitative solutions-based approaches and identify strengths and weaknesses toward designing a simplified CB 'toolbox' approach for use by SMEs in construction trades. Results This toolbox design proposal includes international input on multidisciplinary approaches for performing a qualitative risk assessment determining a risk 'band' for a given project. Risk bands are used to identify the appropriate level of training to oversee construction work, leading to commensurate and appropriate control methods to perform the work safely. Conclusion The Construction Toolbox presents a review-generated format to harness multiple solutions-based national programs and publications for controlling construction-related risks with simplified approaches across the occupational safety, health and hygiene professions.

Spee, Ton; Gillen, Matt; Lentz, Thomas J.; Garrod, Andrew; Evans, Paul; Swuste, Paul

2011-01-01

343

Intentions, practices and aspirations: Understanding learning in design  

Microsoft Academic Search

This paper is about learning in design and how can we measure this learning. The work reported here is based on a study of the actual practice of procurement, design and construction of a number of clients who repeatedly commission work of a similar nature. The paper sets out the background of a project entitled LEAF (Learning from ExperienceApplying Feedback)

B. Lawson; M. Bassanino; M. Phiri; J. Worthington

2003-01-01

344

Comparison of Constructed Wetland Mesocosms Designed for Treatment of Copper-Contaminated Wastewater  

SciTech Connect

This study compared the performance of two constructed wetland mesocosms used to model a full-scale wetland system designed for treatment of copper-contaminated wastewater. One mesocosm (designated site-specific) was built near the construction site of the full-scale wetland using on-site soil, commercially available vegetation [Scirpus californicus (C.A. Meyer) Steud.], and water from the targeted wastestream. A second mesocosm (designated generic) was constructed at Clemson University using local soil, cultured S. californicus, and local municipal water amended with CuSO{sub 4}. Performance objectives were to achieve 22 m g/L total copper and no toxicity (Ceriodaphnia dubia Richard, 7-d/static/ renewal) in wetland outflows. Total inflow copper to the site-specific and generic mesocosms ranged from non-detect to 87 {micro} g/L and from 27 to 68 {micro} g/L, respectively. Overall total copper removal was 40% ({+-}33) for the site-specific mesocosm and 73% ({+-}14) for the generic mesocosm. In seven of nine monthly toxicity tests, C. dubia reproduction was significantly decreased ({alpha} = 0.05) in outflow of the site-specific mesocosm. No outflow toxicity was observed for the generic mesocosm. Although performance of the two mesocosms differed, both studies contributed to full-scale design by highlighting critical aspects of wetland function and augmenting operation and maintenance plans, enhancing overall constructed wetland design.

Gladden, J.B.

2001-02-15

345

Handbook for preparation of Individual Procurement Action Report  

SciTech Connect

The Procurement and Assistance Data System (PADS) provides a mechanism for collecting, assembling, organizing, and presenting acquisition and assistance data for the Department of Energy (DOE). This handbook and associated documents establish a uniform system to report acquisition/assistance data to PADS for the collection, processing, and dissemination of official statistical data on the Department`s acquisition and assistance actions. The data provides, based on information available at the time of request, a basis for any recurring and special reports to the senior procurement executive, Congress, General Accounting Office (GAO), Federal executive agencies, Office of management and Budget (OMB), and the general public. It provides information for measuring and assessing the extent to which small business firms and small disadvantages business enterprises are sharing in DOE placement, and for other acquisition and assistance policy and management control purposes. The Handbook for the Preparation of the Individual Procurement Action Report (IPAR) has been designed in two sections; Procurement and Financial Assistance to support the individual forms.

NONE

1996-10-01

346

The interpretation construction design model for teaching science and its applications to Internet-based instruction in Taiwan  

Microsoft Academic Search

This paper uses the Interpretation Construction Design Model proposed by Black and McClintock (1996) [An interpretation construction approach to constructivist design. In: Wilson, B. (Ed.), Constructivist Learning Environments. Educational Technology Publications, Englewood Cliffs, NJ] to illustrate constructivist science teaching. The author discusses eight principles for constructivist-oriented science instruction, including observations in authentic activities, interpretation construction, contextualizing prior knowledge, cognitive conflict,

Chin-Chung Tsai

2001-01-01

347

42 CFR 486.304 - Requirements for designation.  

Code of Federal Regulations, 2013 CFR

...Designation and Conditions for Coverage: Organ Procurement Organizations Requirements...under the Medicare and Medicaid programs for organ procurement costs attributable to payments...an agreement with CMS in order for the organ procurement costs attributable to the...

2013-10-01

348

48 CFR 227.7107-1 - Architectural designs and data clauses for architect-engineer or construction contracts.  

Code of Federal Regulations, 2013 CFR

... 227.7107-1 Architectural designs and data clauses for architect-engineer...to obtain a unique architectural design of a building, a monument, or construction...control of the data pertaining to the design by including the clause at...

2013-10-01

349

Design and construction of a ?7 low-concentration photovoltaic system based on compound parabolic concentrators  

Microsoft Academic Search

We report on the design, construction, and initial performance measurements of a low-concentration photovoltaic system base on compound parabolic concentrators (CPCs). The system is approximately a 7 concentration system and uses commercially available laser-groove buried contact (LGBC) monocrystalline silicon photovoltaic cells. The CPCs are fabricated using a second-surface aluminized acrylic mirror with proven weather durability. The asymmetric CPC optical design

Mark A. Schuetz; Scott A. Brown; Kara A. Shell; Gregory S. Reinbolt; Roger H. French; Robert J. Davis

2011-01-01

350

[Design and construction of artificial biological systems for complex natural products biosynthesis].  

PubMed

Natural products (NPs) are important drug pools for human disease prevention and treatment. The great advances in synthetic biology have greatly revolutionized the strategies of NPs development and production. This review entitled with design and construction of artificial biological systems for complex NPs biosynthesis, mainly introduced the progresses in artificial design of synthetic biological parts, naturally mining novel synthetic parts of NPs, the assembly & adaption of the artificial biological modules & systems. PMID:24364351

Wang, Jianfeng; Meng, Hailin; Xiong, Zhiqiang; Wang, Yong

2013-08-01

351

Design, Construction, and First Season's Operation of M. V. Kalvik and M. V. Terry Fox  

Microsoft Academic Search

This paper describes the design, construction and first season's operation of the sister ships M. V. Kalvik and M.V. Terry Fox, the most powerful privately owned icebreakers in the world. These multi-purpose Arctic Class IV vessels are designed to support BeauDril Limited's Arctic Drilling Units in the areas of ice management, towing, anchor handling and supply. In order to achieve

R. P. Browne; J. E. Carter; P. C. Kimmerly

1984-01-01

352

Annual Procurement and Financial Report, FY 1988.  

National Technical Information Service (NTIS)

The procurement and financial assistance activity of the Department of Energy (DOE) is unique in the Federal Government. DOE is generally not a consumer of the technology it develops, nor does it procure production quantities of hardware for its own use. ...

1989-01-01

353

Competitive Procurement of Integrated Library Systems.  

ERIC Educational Resources Information Center

Describes the competitive bidding process used by California State University to successfully procure integrated library systems for 5 of its 19 campuses during 1 fiscal year. The procurements demonstrated that competitive bidding not only reduces overall cost of library systems, but also allows the buyer to achieve favorable contract provisions.

Reader, Evan A.

1989-01-01

354

78 FR 45183 - Procurement List Additions  

Federal Register 2010, 2011, 2012, 2013

...COMMITTEE FOR PURCHASE FROM PEOPLE WHO ARE BLIND OR SEVERELY DISABLED Procurement List...Committee for Purchase From People Who Are Blind or Severely Disabled. ACTION: Additions...SUMMARY: This action adds a products and services to the Procurement List that...

2013-07-26

355

Feasibility, Design and Construction of a Small Hydroelectric Power Generation Station as a Student Design Project.  

ERIC Educational Resources Information Center

An undergraduate capstone engineering design project now provides hydroelectric power to a remote wilderness location. Students investigated the feasibility of designing, building, and installing a 4kW hydroelectric system to satisfy the need for electric power to support the research and teaching functions of Taylor Ranch, a university facility

Peterson, James N.; Hess, Herbert L.

356

The Enabler: A reevaluation of design concepts and construction of a scaled model  

NASA Astrophysics Data System (ADS)

The basic objective of the student's work this quarter was to make an in depth examination of the design concepts used on the lunar vehicle 'The Enabler'. Several changes were made to the vehicle including a redesigned wheel, a more compact boom and a reduced articulation angle. The vehicle's final dimensions were determined through an optimization process by defining mathematical equations for several of the vehicle's defined objectives. These included the ability to scale a one meter object, traverse a one meter crevice, and maintain a wheel-to-wheel clearance of three inches while at maximum articulation. The final dimensions of the vehicle were used to construct an approximate 1/4 scale model of the chassis and wheels. The boom, however, was constructed on a 1/5 scale (from the original design). This was due to the redesign of the boom and the limitations of the constructing material and PVC fittings.

Bess, David; Fye, Stephen; Gale, Thomas; Haldopolous, Dean; Looney, Michael; Milam, Ken; Smith, Dan; Sosebee, Frank

1992-06-01

357

The Enabler: A reevaluation of design concepts and construction of a scaled model  

NASA Technical Reports Server (NTRS)

The basic objective of the student's work this quarter was to make an in depth examination of the design concepts used on the lunar vehicle 'The Enabler'. Several changes were made to the vehicle including a redesigned wheel, a more compact boom and a reduced articulation angle. The vehicle's final dimensions were determined through an optimization process by defining mathematical equations for several of the vehicle's defined objectives. These included the ability to scale a one meter object, traverse a one meter crevice, and maintain a wheel-to-wheel clearance of three inches while at maximum articulation. The final dimensions of the vehicle were used to construct an approximate 1/4 scale model of the chassis and wheels. The boom, however, was constructed on a 1/5 scale (from the original design). This was due to the redesign of the boom and the limitations of the constructing material and PVC fittings.

Bess, David; Fye, Stephen; Gale, Thomas; Haldopolous, Dean; Looney, Michael; Milam, Ken; Smith, Dan; Sosebee, Frank

1992-01-01

358

Case study of restaurant successfully designed, constructed, and operated for excellent dining acoustics  

NASA Astrophysics Data System (ADS)

Prior to the construction of La Provence Restaurant in Roseville, California in 2004, the owner, Stephen Des Jardins, traveled with his cook, architect, and engineer to the Provence Region of France to study the cuisine, architecture, and acoustics of the local restaurants. This information was incorporated into the design, construction, and operation of his restaurant, with acoustical design assistance provided by the author, Paul Bollard. The result of the owner's painstaking attention to detail is a restaurant which has received very positive reviews for its architecture, quality of food, service, and acoustic ambience. This paper documents the measures included in the construction of the restaurant to ensure that the building acoustics enhance the dining experience, rather than detract from it. Photographs of acoustic treatments are included, as are reverberation time (RT60) test results and ambient noise level measurement results.

Bollard, Paul; Des Jardins, Stephen

2005-09-01

359

A worksite prevention program for construction workers: design of a randomized controlled trial  

PubMed Central

Background A worksite prevention program was developed to promote the work ability of construction workers and thereby prolong a healthy working life. The objective of this paper is to present the design of a randomized controlled trial evaluating the effectiveness of that intervention program compared with usual care for construction workers. Methods The study is designed as a randomized controlled trial with a follow-up of one year. Employees eligible for this study are construction workers performing actual construction work. The worksite intervention will be compared with usual care. This intervention was developed by using the Intervention Mapping approach and consists of the following components: (1) two individual training sessions of a physical therapist to lower the physical workload, (2) a Rest-Break tool to improve the balance between work and recovery, and (3) two empowerment training sessions to increase the influence of the construction workers at the worksite. Outcome measures are assessed at baseline, 3, 6, and 12 months. The primary outcome measures of this study are work ability and health-related quality of life. Secondary outcome measures include need for recovery, musculoskeletal complaints, work engagement and self efficacy. Cost-effectiveness will be evaluated from the company perspective. Moreover, a process evaluation will be conducted. Discussion The feasibility of the intervention and the study has been enhanced by creating an intervention program that explicitly appeals to construction workers and will not interfere too much with the ongoing construction. The feasibility and effectiveness of this worksite prevention program will be investigated by means of an effect- and a process evaluation. If proven effective, this worksite prevention program can be implemented on a larger scale within the construction industry. Trial Registration NTR1278

2010-01-01

360

Design and construction of a modular pilot plant for the treatment of oil-containing wastewaters  

Microsoft Academic Search

A modular pilot size plant involving coagulation\\/flocculation, centrifugation, ultrafiltration and sorption processes has been designed and constructed. The pilot plant can be used for the treatment of different water-based coolants and oily wastewaters, generated in metalworking processes and steel cold rolling operations. Different treatments are considered depending on the nature of the oily waste emulsion. The main advantage of the

JosManuel Benito; Guillermo Ros; Enrique Ortea; Eva Fernndez; Angel Cambiella; Carmen Pazos; Jos Coca

2002-01-01

361

Multicell Fluidized-Bed Boiler Design, Construction and Test Program. Interim Report, July 1974--June 1975.  

National Technical Information Service (NTIS)

Design, construction and test program of a 300,000 lbs/hr steam generation capacity multicell fluidized-bed boiler (MFB), as a pollution-free method of burning high-sulfur coal, or highly corrosive coals without excessive problems, is being carried out. T...

J. E. Mesko R. R. Reed J. Malik R. L. Gamble F. R. Warshany

1975-01-01

362

Windmill design, development, construction, and performance. (Latest citations from Fluidex). Published Search  

SciTech Connect

The bibliography contains citations concerning the design, development, construction, and performance of windmills and associated systems, subsystems, and components. Both aerodynamic and structural performance characteristics are discussed. Included are references to siting characteristics, power production and windmill efficiency, and specific system descriptions. (Contains 250 citations and includes a subject term index and title list.)

Not Available

1994-01-01

363

Windmill design, development, construction, and performance. (Latest citations from Fluidex data base). Published Search  

SciTech Connect

The bibliography contains citations concerning the design, development, construction, and performance of windmills and associated systems, subsystems, and components. Both aerodynamic and structural performance characteristics are discussed. Included are references to siting characteristics, power production and windmill efficiency, and specific system descriptions. (Contains 250 citations and includes a subject term index and title list.)

Not Available

1992-05-01

364

Windmill design, development, construction, and performance. (Latest citations from fluidex). Published Search  

SciTech Connect

The bibliography contains citations concerning the design, development, construction, and performance of windmills and associated systems, subsystems, and components. Both aerodynamic and structural performance characteristics are discussed. Included are references to siting characteristics, power production and windmill efficiency, and specific system descriptions. (Contains 250 citations and includes a subject term index and title list.)

NONE

1995-02-01

365

Windmill design, development, construction, and performance. (Latest citations from Fluidex (Fluid Engineering Abstracts) database). Published Search  

SciTech Connect

The bibliography contains citations concerning the design, development, construction, and performance of windmills and associated systems, subsystems, and components. Both aerodynamic and structural performance characteristics are discussed. Included are references to siting characteristics, power production and windmill efficiency, and specific system descriptions. (Contains 250 citations and includes a subject term index and title list.)

Not Available

1993-10-01

366

Hydrokinetic turbine blades: Design and local construction techniques for remote communities  

Microsoft Academic Search

The design and construction of a hydrokinetic turbine intended for off-grid remote communities in Sarawak, Malaysia, are demonstrated and explained in this paper. By estimating the power required by a single remote home, knowing the average velocity of a nearby river, and making reasonable assumptions for the efficiency of the turbine, transmission and generator, the turbine diameter and hence blade

Martin Anyi; Brian Kirke

2011-01-01

367

Improvement of Sand Filter and Constructed Wetland Design using an Environmental Decision Support System  

Microsoft Academic Search

With the aim of improving effl uent quality of waste stabilization ponds, diff erent designs of vertical fl ow constructed wetlands and intermittent sand fi lters were tested on an experimental full-scale plant within the framework of a European project. Th e information extracted from this study was completed and updated with heuristic and bibliographic knowledge. Th e data and

Cludia Turon; Joaquim Comas; Antonina Torrens; Pascal Molle; Manel Poch

2008-01-01

368

Tool integration and construction using generated graph-based design representations  

Microsoft Academic Search

In this paper we present a new data model for tool integration that extends existing data models by an abstract graph model. We provide a framework service based on this model which generates implementations of graph-based design representations from a conceptual schema. In two case studies we use them for rapid construction of a high-level synthesis tool and for easy

Ansgar Bredenfeld; Raul Camposano

1995-01-01

369

Design and Construction of a Closed Loop High Pressure Turbine Meter Calibration Facility  

Microsoft Academic Search

This paper describes the design and construction challenge of a closed-loop high pressure turbine meter proving facility. Both the conventional method and a novel approach using alternate test fluids for turbine meter proving will be explored. A comparison of meter test data based on different gas media will be examined.

Paul W. Tang

2008-01-01

370

The Lifting Scheme: A Custom-Design Construction of Biorthogonal Wavelets  

Microsoft Academic Search

We present the lifting scheme, a new idea for constructing compactly supported wavelets with compactly supported duals. The lifting scheme uses a simple relationship between all multiresolution analyses with the same scaling function. It isolates the degrees of freedom remaining after fixing the biorthogonality relations. Then one has full control over these degrees of freedom to custom design the wavelet

Wim Sweldens

1996-01-01

371

Design and Construction of a High-Speed Magnetic Tape Duplicator.  

ERIC Educational Resources Information Center

Engineering procedures used in the design and construction of a high-speed, multichannel magnetic tape duplicator are described. The completed duplicator, a common mandrel duplicator, in which a single drive motor turns a common capstan shaft at high speeds and moves both master and copy tapes simultaneously, performs satisfactorily yet suggests

Hoskin, Richard K.

372

Design and construction of a full-thickness guarded hot plate test system  

Microsoft Academic Search

The need to determine the thermal performance of thick, light-density fibrous insulating materials at full manufactured thickness has necessitated the design and construction of new, large test equipment. The technical challenges imposed by thicker, high R-value insulation test samples and longer system time constants have increased the stability and precision measurement requirements of all system parameters. This paper describes the

Messmer

1983-01-01

373

Design, Construction, and Calibration of a Portable Short Wave Infrared Spectroradiometer  

Microsoft Academic Search

This dissertation describes the design, construction, and calibration of a portable short wave infrared (SWIR) spectroradiometer. The main use for the instrument is the collection of ground reflectance and radiance data for the radiometric calibration of operational and proposed high spectral resolution remote-sensing systems, such as the Airborne Visible and Infrared Imaging Spectrometer (AVIRIS), the Moderate Resolution Imaging Spectroradiometer (MODIS),

Mark William Smith

1992-01-01

374

Developing a master set of contract forms for design and construction.  

PubMed

The planning, design and construction process of a health care facility is constantly in motion. Contracts are involved in all phases, whether they be short and simple or detailed and comprehensive. This document examines the various contract forms available, and when their use is appropriate. PMID:10159299

Carey, K E

1996-03-01

375

A project management approach to design and construction of a new generation Arctic drilling system  

SciTech Connect

A second generation drilling system for the Arctic offshore has been designed and constructed by Gulf Canada Resources Inc. This paper describes the decision process that resulted in the implementation of project management approach to the undertaking. A brief description of the organizational structure and control mechanisms used are presented.

Loh, J.K.S.

1984-05-01

376

A Project Management Approach to Design andConstruction of a New Generation Arctic Drilling System  

Microsoft Academic Search

A second generation drilling system for the Arctic offshore has been designed and constructed by Gulf Canada Resources Inc. This paper describes the decision process that resulted in the implementation of project management approach to the undertaking. A brief description of the organizational structure and control mechanisms used are presented.

J. Loh; J. K. S

1984-01-01

377

Application of entropy in design risk management of the large-scale construction project  

Microsoft Academic Search

It is no doubt that design risk management(DRM) plays an important role in safety, quality, schedule and cost of the large-scale construction project, with complex and special surroundings and control objects, more efficient and quantitative methods are urgently required to analyze and predict the focus of DRM which need to be controlled. Simplifying and processing these complex parameters in DRM

Liang Sun; Guangbin Fu; Minna Wang

2010-01-01

378

Effectivity of Risk Management for Design & Construct Projects of Large Contractors  

Microsoft Academic Search

This paper presents an evaluation on the risk analysis and risk management of a contractor for large Design and Construct projects. Risk management and risk analysis are vital tools to secure project profitability. The evaluation of individual projects brings to surface some discrepancies that obstruct the learning-cycle for today's projects. Therefore recommendations are made to increase effectiveness of risk management

J. G. Vastert

379

A Student-Designed Grammar Quiz on the Web: A Constructive Mode of Grammar Instruction  

ERIC Educational Resources Information Center

The World Wide Web has frequently been incorporated into second/foreign language (L2 hereafter) course instruction during the past decade. However, many teaching methods essentially employed it as a reactive mode of L2 instruction. Many other methods have been designed to facilitate constructive L2 production. They are, however, limited in their

Fukushima, Tatsuya

2006-01-01

380

Mechanical Design Philosophy and Construction of the Amsterdam Pulse Stretcher Ring AmPS.  

National Technical Information Service (NTIS)

The design philosophy and the construction of the Amsterdam Pulse Stretcher (AmPS) are described with emphasis on the vacuum components as well as on the alignment system and on the supports for the magnets and the monitors. The AmPS ring is a 900 MeV ele...

A. P. Kaan J. A. Heemskerk J. Touw J. Bijleveld H. B. Rookhuizen

1992-01-01

381

Multicell Fluidized-Bed Boiler Design, Construction and Test Program. Monthly Progress Status Report No. 56.  

National Technical Information Service (NTIS)

The design, construction and test program of a 300,000 lbs/hr steam generation capacity multicell fluidized-bed boiler (MFB), as a pollution-free method of burning high-sulfur coal, or highly corrosive coals without excessive problems, is being carried ou...

J. E. Mesko

1977-01-01

382

From Concept to Commissioning: Planning, Design, and Construction of Campus Facilities.  

ERIC Educational Resources Information Center

To address the growing interest in campus planning, design, and construction projects, this anthology compiles articles previously published in "Facilities Manager." The beginning chapters focus on campus architecture, master planning, and project planning. The mid-section of the book offers information on the critical issues of time management,

Guckert, Donald, Ed.

383

FINDINGS OF INTERNATIONAL REVIEW OF SOIL COVER DESIGN AND CONSTRUCTION PRACTICES FOR MINE WASTE CLOSURE1  

Microsoft Academic Search

Selected results of an international review of soil cover design and construction practices and performance is presented in this paper. The review, which was carried out in 2003, initially included 177 case studies in 14 countries. This has subsequently been updated to include more than 200 individual case studies. The case studies include soil covers for tailings impoundments, waste rock

Maritz Rykaart; Daryl Hockley; Michel Noel; Michael Paul

384

Design, construction and study of a hybrid solar food processor in the climate of Costa Rica  

Microsoft Academic Search

During the last 25 years, the author has designed, constructed, studied and promoted solar oven, hybrid solar\\/electric oven, solar oven cum drier, solar cooker cum water heater and solar still. In different parts of the world, solar cookers have been made, studied, patented, however, their real uses are very limited due to many reasonsunstable climate, economic, cultural, social and single

Shyam S. Nandwani

2007-01-01

385

DESIGN AND CONSTRUCTION OF A LOW-COST STREAM-MONITORING SHELTER  

EPA Science Inventory

The design and construction of a low-cost stream-monitoring shelter are discussed. urrently in use on the Fernow Experimental Forest in West Virginia, the shelter creates an environment for efficient sampling and chemical monitoring of small streams while protecting expensive equ...

386

Design and construction of new central and forward muon counters for CDF II  

Microsoft Academic Search

New scintillation counters have been designed and constructed for the upgradation of the CDF detector at the Fermilab Tevatron in order to complete the muon coverage of the central detector and to extend it to a larger pseudorapidity interval. A novel light collection technique using wavelength shifting fibers, together with high-quality polystyrene-based scintillator resulted in compact counters with good and

A. Artikov; J. Budagov; I. Chirikov-Zorin; D. Chokheli; V. Kolomoets; M. Lyablin; O. Pukhov; A. Sissakian; G. Bellettini; F. Cervelli; M. Incagli; A. Menzione; F. Palmonari; A. Scribano; A. Stefanini; D. Cauz; H. Grassmann; G. Pauletta; L. Santi; G. Introzzi; A. Penzo; M. Iori; B. Grinyov; V. Lagutin; V. Lebedev; V. Lyubynskiy; V. Senchyshyn; V. Kovtun; I. Zaljubovsky; I. Fedorko; S. Tokar; V. Giakoumopoulou; N. Giokaris; A. Manousakis-Katsikakis

2005-01-01

387

Evaluation of the Design, Construction and Operation of a Gas Fueled Engine Driven Heat Pump.  

National Technical Information Service (NTIS)

The design, construction, testing, and evaluation of a gas fueled engine driven heat pump are considered. The heat pump, using air as its source of heat is driven by a 360 cc single cylinder marine engine converted to run on natural gas. The unit was buil...

C. A. Phillips

1981-01-01

388

Actors, Domains, and Constraints in the Design and Construction of Controlled Vocabularies  

Microsoft Academic Search

Classification schemes, thesauri, taxonomies, and other controlled vocabularies play important roles in the or- ganization and retrieval of information in many different environments. While the design and construction of controlled vo- cabularies have been prescribed at the technical level in great detail over the past decades, the methodological level has been somewhat neglected. However, classification research has in recent years

Jens-Erik Mai

2008-01-01

389

Solar Energy System Performance Evaluation, Design Construction, Bigfork, Montana, October 1979-April 1980.  

National Technical Information Service (NTIS)

The Design Construction site is a single-family residence in Bigfork, Montana equipped with an active solar energy system. The solar energy system consists of an array of 792 square feet of Revere, Sun Roof flat-plate, liquid (water drain-down) collectors...

M. L. Brauch

1980-01-01

390

DESIGN AND CONSTRUCTION OF A FLUIDIZED-BED COMBUSTION SAMPLING AND ANALYTICAL TEST RIG  

EPA Science Inventory

The report describes the design, construction, and installation of a fluidized-bed coal combustion sampling and analytical test rig in the High Bay Area (Wing G) of EPA's Industrial Environmental Research Laboratory (IERL), Research Triangle Park, North Carolina. The rig, to be u...

391

DESIGN AND CONSTRUCTION OF EDDY CURRENT SENSORS WITH RECTANGULAR PLANAR COILS  

Microsoft Academic Search

Eddy current sensors with rectangular planar coils were designed, constructed and characterized. The rectangular planar coils have a maximum testing area of 2.25 cm2 and an output impedance in the range of the entrance impedance of normal commercial equipment (5 to 200 Ohm). Two out of eight different windings have been studied so far, their electrical properties have been measured

J. Fava; A. E. Obrutsky; M. Ruch

392

Optimal design for hydraulic efficiency performance of free-water-surface constructed wetlands  

Microsoft Academic Search

This study aims to provide the optimal design of different free-water-surface constructed wetlands (FWS CWs) according to hydraulic efficiency index (?). This index is mainly determined by the position and distribution of the hydraulic retention time (HRT) curve of a wetland. HRT can be defined as the period during which each portion of fluid remains in the wetland under the

Tsung-Min Su; Sheng-Chi Yang; Shang-Shu Shih; Hong-Yuan Lee

2009-01-01

393

Enhancing commonly used model predictions for constructed wetland performance: as-built design considerations  

Microsoft Academic Search

Successful performance management of constructed wetlands for water treatment requires that mathematical interactions between influent surface water and the water balance be predictable and consistent. Water inflows and outflows, as quantified by a water balance model, form the baseline for pollutant loadings of solutes and nutrients. These flows, coupled with the induced ecological and chemical interactions, affect the design and

Renee Kincanon; A. Steve McAnally

2004-01-01

394

Alternative Shear Panel Configurations for Light Wood Construction. Development, Seismic Performance, and Design Guidance  

Microsoft Academic Search

Shear panels are used in light wood construction to resist lateral loads resulting from earthquakes or strong winds. These panels are typically made of wooden sheathing nailed to building frame members, but this standard panel design interferes with the installation of sheet insulation. A non-insulated shear panel conducts heat between the building interior and exterior wasting considerable amounts of energy.

James Wilcoski; Chad Fischer; Tim Allison; Kelly Jo Malach

2002-01-01

395

The construction way of industrial design color tool based on Ostwald's color system  

Microsoft Academic Search

The paper study the construction principle of Ostwald's color system according as color theory and knowledge of industrial design (ID), realize the visual model of Ostwald's color solid applying the OpenGL technology, then realize color's selection through the method of lower dimension display, at the same time, according to the theory of color harmony, build up the idiographic technology course

Dengkai Chen; Xian Zhou; Changde Lu

2006-01-01

396

RADON PREVENTION IN THE DESIGN & CONSTRUCTION OF SCHOOLS & OTHER LARGE BUILDINGS  

EPA Science Inventory

It is typically easier and much less expensive to design and construct a new building with radon-resistant and/or easy-to-mitigate features, than to add these features after the building is completed and occupied. Therefore, when building in an area with the potential for elevate...

397

Trench design and construction techniques for low-level radioactive waste disposal. [Shallow land burial  

Microsoft Academic Search

This document provides information on trench design and construction techniques which can be used in the disposal of LLW by shallow land burial. It covers practices currently in use not only in the LLW disposal field, but also methods and materials being used in areas of hazardous and municipal waste disposal which are compatible with the performance objectives of 10

1983-01-01

398

Het Konstruktieve Ontwerp van de FACT-Rotor (Construction Design of the FACT-Rotor),  

National Technical Information Service (NTIS)

The report describes the construction design of a windmill wing with a tip vane. The diameter of the rotor is about 9 meters and equipped with a flexbeam. This flexbeam results in low wing bending rigidity from the rotor plane and low torsion rigidity aro...

P. A. Joosse

1986-01-01

399

14 CFR 1201.400 - NASA procurement program.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 2010-01-01 true NASA procurement program. 1201.400 Section... General Information 1201.400 NASA procurement program. (a) The Office...central point of control and contact for NASA procurements. Although the...

2011-01-01

400

14 CFR 1201.400 - NASA procurement program.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 2010-01-01 false NASA procurement program. 1201.400 Section... General Information 1201.400 NASA procurement program. (a) The Office...central point of control and contact for NASA procurements. Although the...

2010-01-01

401

14 CFR 1201.400 - NASA procurement program.  

...2014-01-01 2014-01-01 false NASA procurement program. 1201.400 Section... General Information 1201.400 NASA procurement program. (a) The Office...central point of control and contact for NASA procurements. Although the...

2014-01-01

402

48 CFR 404.602 - Federal Procurement Data System.  

Code of Federal Regulations, 2013 CFR

...Federal Procurement Data System. (a) Contracting...Federal Procurement Data System in accordance with the instructions issued or distributed by the SPE. (b) The...Federal Procurement Data System shall begin with the...

2013-10-01

403

International Building Design Management and Project Performance: Case Study in So Paulo, Brazil  

Microsoft Academic Search

The decline in construction demand in developed countries has led to the search for business opportunities overseas and the entry of foreign companies into emerging markets. Recent advances in information and communication technologies have also favoured the procurement of architecture, engineering and construction services on a global basis, and have led to the establishment of international design teams. The employment

Leonardo Grilo; Slvio Melhado; Srgio Alfredo Rosa Silva; Peter Edwards; Cliff Hardcastle

2007-01-01

404

A supermolecular building approach for the design and construction of metal-organic frameworks.  

PubMed

In this review, we describe two recently implemented conceptual approaches facilitating the design and deliberate construction of metal-organic frameworks (MOFs), namely supermolecular building block (SBB) and supermolecular building layer (SBL) approaches. Our main objective is to offer an appropriate means to assist/aid chemists and material designers alike to rationally construct desired functional MOF materials, made-to-order MOFs. We introduce the concept of -coded building units (-cBUs), where precise embedded geometrical information codes uniquely and matchlessly a selected net, as a compelling route for the rational design of MOFs. This concept is based on employing pre-selected 0-periodic metal-organic polyhedra or 2-periodic metal-organic layers, SBBs or SBLs respectively, as a pathway to access the requisite -cBUs. In this review, inspired by our success with the original -MOF, we extrapolated our strategy to other known MOFs via their deconstruction into more elaborate building units (namely polyhedra or layers) to (i) elucidate the unique relationship between edge-transitive polyhedra or layers and minimal edge-transitive 3-periodic nets, and (ii) illustrate the potential of the SBB and SBL approaches as a rational pathway for the design and construction of 3-periodic MOFs. Using this design strategy, we have also identified several new hypothetical MOFs which are synthetically targetable. PMID:25009001

Guillerm, Vincent; Kim, Dongwook; Eubank, Jarrod F; Luebke, Ryan; Liu, Xinfang; Adil, Karim; Lah, Myoung Soo; Eddaoudi, Mohamed

2014-07-21

405

Main Features of JSME Design and Construction Code for Fast Reactors  

SciTech Connect

Since its foundation in 1997, the Main Committee on Power Generation Facility Codes, MC-PGFC, of the Japan Society of Mechanical Engineers, JSME, has issued a number of nuclear codes including the rules on design and construction and the rules on fitness-for-service for nuclear power plants. Some of these JSME nuclear codes have been endorsed by the regulatory body, and are now utilized in the regulatory processes of the actual plants. Among these nuclear codes recently published is the 'rules on design and construction for fast reactors'. It includes as its main body design rules on class 1 components for elevated temperature services. This paper overview the main features of the code. (authors)

Masaki Morishita [Japan Atomic Energy Agency (Japan); Masayuki Sukekawa [Hitachi, Ltd. (Japan); Tomomi Otani [Mitubishi Heavy Industries, Ltd. (Japan)

2006-07-01

406

The design and construction of a high temperature linear electromagnetic actuator  

NASA Astrophysics Data System (ADS)

This article is concerned with the design and construction of a bidirectional linear actuator capable of operating in ambient temperatures of up to 800 C with a rated force of 300 N and a stroke of +/-0.5 mm. The electromagnetic design synthesis strategy employed is described with particular emphasis on those aspects most markedly affected by the high operating temperature, viz. the selection of an appropriate actuator topology and the relative merits of candidate soft magnetic alloys. The key role of detailed thermal modeling, particularly the importance of radiation as a heat transfer mechanism in such high temperature applications, is illustrated during the design synthesis. The construction of a prototype actuator is discussed, including the use of tape would conductors with ceramic insulation and Inconel 600 disk springs as bearing elements.

Sidell, N.; Jewell, G. W.

1999-04-01

407

Tools for laser spectroscopy: The design and construction of a Faraday isolator  

NASA Astrophysics Data System (ADS)

We discuss the design and construction of a Faraday isolator for diode laser spectroscopy using commercially available components. The design involves modelling the magnetic field of an assembly of cylindrical magnets and verifying the predictions using a sensor. We obtain an isolation ratio for optical feedback of similar to 35 dB at a wavelength of 780 nm. The cost is approximately one-fourth the cost of an equivalent commercially available device. We expect that the design can be widely used in experiments in laser spectroscopy and in advanced undergraduate laboratory experiments.

Winter, S.; Mok, C.; Kumarakrishnan, A.

2006-09-01

408

Energy-efficiency design and inspection guides for affordable housing construction  

SciTech Connect

This paper focuses on the general methods used in guides developed for the energy efficient design and inspection of new and revitalized housing projects for military family housing. The methods and guides can also benefit the wider market of public and other housing. Inspections performed on military and public housing units were used to identify energy deficiencies. The most common problems found were related to disconnected and deteriorated forced air distribution duct work and poor system design resulting in significant air leakage. Design and inspection guides are summarized for new construction and revitalization projects. 7 refs., 7 figs.

Ternes, M.P.; Livengood, S.E.; Wendt, R.L.

1997-12-01

409

Design And Construction of a W-Band Sheet Beam Klystron  

SciTech Connect

The design and construction of a 100 kW peak power, 2% duty, PCM focused, Wband sheet beam klystron is discussed. The elliptical cross section beam is produced by a new electron gun design using a cylindrical cathode and a racetrack shaped focus electrode. The multi-gap cavities produce acceptable values of R/Q and are designed to produce a uniform electric field over the width of the 12:1 aspect ratio beam. The prototype cavities are produced using normal machining however, LIGA will be used to fabricate the cavities in production versions.

Scheitrum, G.; /SLAC

2006-02-14

410

A Conduction Cooled High Temperature Superconductor Quadrupolar Superferric Magnet, Design and Construction  

NASA Astrophysics Data System (ADS)

The paper presents the prototype of an YBCO superferric quadrupolar magnet for high gradient magnetic field generation, design and construction. The temperature of the superconducting coil has to be kept within safe limits or the HTS would exit the superconductive state. Of particular concern is the "warm" beam tube that passes through the magnet. Cryogenic conduction cooling with a closed cycle G-M Cooler may ensure the removal of the ambient heat influx. Numerical simulation results on the magnetic field and heat transfer problems are then discussed. The computational domain is abstracted out of the CAD design of the system. The design solution is presented and compared with the numerical simulations results.

Dobrin, I.; Morega, A. M.; Nedelcu, A.; Morega, M.; Neamtu, J.

2014-05-01

411

UMTRA Project value engineering plan. [Design and construction of stabilized tailings embankments  

SciTech Connect

The objective of value engineering (VE) on the Uranium MILL Tailings Remedial Action (UMTRA) Project is to ensure that remedial action at the UMTRA Project sites is performed to meet the US Environmental Protection Agency (EPA) standards for inactive uranium mill tailings sites at the lowest cost, while maintaining a high quality of work. Through review of designs and consideration of reasonable, less expensive alternatives, VE can be an effective cost reduction tool and a means to improve the design. The UMTRA Project products are the design and construction of stabilized tailings embankments.

Not Available

1990-06-01

412

Construction of "small-intelligent" focused mutagenesis libraries using well-designed combinatorial degenerate primers.  

PubMed

Site-saturation mutagenesis is a powerful tool for protein optimization due to its efficiency and simplicity. A degenerate codon NNN or NNS (K) is often used to encode the 20 standard amino acids, but this will produce redundant codons and cause uneven distribution of amino acids in the constructed library. Here we present a novel "small-intelligent" strategy to construct mutagenesis libraries that have a minimal gene library size without inherent amino acid biases, stop codons, or rare codons of Escherichia coli by coupling well-designed combinatorial degenerate primers with suitable PCR-based mutagenesis methods. The designed primer mixture contains exactly one codon per amino acid and thus allows the construction of small-intelligent mutagenesis libraries with one gene per protein. In addition, the software tool DC-Analyzer was developed to assist in primer design according to the user-defined randomization scheme for library construction. This small-intelligent strategy was successfully applied to the randomization of halohydrin dehalogenases with one or two randomized sites. With the help of DC-Analyzer, the strategy was proven to be as simple as NNS randomization and could serve as a general tool to efficiently randomize target genes at positions of interest. PMID:22401547

Tang, Lixia; Gao, Hui; Zhu, Xuechen; Wang, Xiong; Zhou, Ming; Jiang, Rongxiang

2012-03-01

413

Design, construction, and first commissioning results of superconducting source for ions at NSCL/MSU  

NASA Astrophysics Data System (ADS)

A new electron cyclotron resonance ion source (ECRIS) was constructed at the NSCL/MSU to replace the existing SC-ECRIS. This ECRIS operates at 18+14.5 GHz microwave frequencies with a planned upgrade to 24-28 GHz in the second phase of commissioning. A superconducting hexapole coil system produce the radial magnetic field; the axial trapping is produced with six superconducting solenoid coils enclosed in an iron yoke to allow the optimization of the distance between the plasma electrode and the resonant zone in the plasma. We report the details of the design, construction, and initial commissioning results of this new ECRIS.

Zvodszky, P. A.; Arend, B.; Cole, D.; Dekamp, J.; Doleans, M.; Machicoane, G.; Marti, F.; Miller, P.; Moskalik, J.; Nurnberger, W.; Ottarson, J.; Vincent, J.; Wu, X.; Zeller, A.

2008-02-01

414

Infection control considerations in critical care unit design and construction: a systematic risk assessment.  

PubMed

When contemplating major renovation or new construction of a critical care unit (CCU), the use of systematic infection control risk assessment (ICRA) provides guidance to limit infectious perils for patients and to reduce occupational hazards for employees in this environment. The nursing representative and other members of the multidisciplinary planning and design team must routinely address infection control factors throughout the project and assist administration in understanding the rationale for the floor plan, equipment, and furnishings required to support sound infection control practices. Collaborative team skills, articulate communication techniques, and frequent rounds are integral throughout the construction. PMID:11858557

Bartley, J; Bjerke, N B

2001-11-01

415

Constructing a modern cytology laboratory: A toolkit for planning and design  

PubMed Central

Introduction: Constructing or renovating a laboratory can be both challenging and rewarding. UAB Cytology (UAB CY) recently undertook a project to relocate from a building constructed in 1928 to new space. UAB CY is part of an academic center that provides service to a large set of patients, support training of one cytotechnology program and one cytopathology fellowship training program and involve actively in research and scholarly activity. Our objectives were to provide a safe, aesthetically pleasing space and gain efficiencies through lean processes. Methods: The phases of any laboratory design project are Planning, Schematic Design (SD), Design Development (DD), Construction Documents (CD) and Construction. Lab personnel are most critical in the Planning phase. During this time stakeholders, relationships, budget, square footage and equipment were identified. Equipment lists, including what would be relocated, purchased new and projected for future growth ensure that utilities were matched to expected need. A chemical inventory was prepared and adequate storage space was planned. Regulatory and safety requirements were discussed. Tours and high level process flow diagrams helped architects and engineers understand the laboratory daily work. Future needs were addressed through a questionnaire which identified potential areas of growth and technological change. Throughout the project, decisions were driven by data from the planning phase. During the SD phase, objective information from the first phase was used by architects and planners to create a general floor plan. This was the basis of a series of meetings to brainstorm and suggest modifications. DD brings more detail to the plans with engineering, casework, equipment specifics, finishes. Design changes should be completed at this phase. The next phase, CD took the project from the lab purview into purely technical mode. Construction documents were used by the contractor for the bidding process and ultimately the Construction phase. Results: The project fitted out a total of 9,000 square feet; 4,000 laboratory and 5,000 office/support. Lab space includes areas for Prep, CT screening, sign out and Imaging. Adjacent space houses faculty offices and conferencing facilities. Transportation time was reduced (waste removal) by a Pneumatic Tube System, specimen drop window to Prep Lab and a pass thru window to the screening area. Open screening and prep areas allow visual management control. Efficiencies were gained by ergonomically placing CT Manual and Imaging microscopes and computers in close proximity, also facilitating a paperless workflow for additional savings. Logistically, closer proximity to Surgical Pathology maximized the natural synergies between the areas. Conclusions: Lab construction should be a systematic process based on sound principles for safety, high quality testing, and finance. Our detailed planning and design process can be a model for others undertaking similar projects

Roberson, Janie; Wrenn, Allison; Poole, John; Jaeger, Andrew; Eltoum, Isam A.

2013-01-01

416

Design and construction of models for the National Transonic Facility, part 1  

NASA Technical Reports Server (NTRS)

The design and construction of models for the National Transonic Facility (NTF) has resulted in significant technology developments in many areas. This lecture covers the development of design criteria and major research and development work that has contributed to the successful design and fabrication models for testing at full scale Reynolds number the NTF. Emphasis is placed on the materials aspect of the design and fabrication proces, including metallic materials, mechanical properties characterization, new steel alloy development, fracture toughness enhancement, and identification of fillers and solders suitable for use in cryogenic models. Quantitative data are provided which will be of value to the potential user of NTF or for application to the design and fabrication of model systems for other cryogenic wind tunnels.

Young, C. P., Jr.

1985-01-01

417

LADES: A Software for Constructing and Analyzing Longitudinal Designs in Biomedical Research  

PubMed Central

One of the most important steps in biomedical longitudinal studies is choosing a good experimental design that can provide high accuracy in the analysis of results with a minimum sample size. Several methods for constructing efficient longitudinal designs have been developed based on power analysis and the statistical model used for analyzing the final results. However, development of this technology is not available to practitioners through user-friendly software. In this paper we introduce LADES (Longitudinal Analysis and Design of Experiments Software) as an alternative and easy-to-use tool for conducting longitudinal analysis and constructing efficient longitudinal designs. LADES incorporates methods for creating cost-efficient longitudinal designs, unequal longitudinal designs, and simple longitudinal designs. In addition, LADES includes different methods for analyzing longitudinal data such as linear mixed models, generalized estimating equations, among others. A study of European eels is reanalyzed in order to show LADES capabilities. Three treatments contained in three aquariums with five eels each were analyzed. Data were collected from 0 up to the 12th week post treatment for all the eels (complete design). The response under evaluation is sperm volume. A linear mixed model was fitted to the results using LADES. The complete design had a power of 88.7% using 15 eels. With LADES we propose the use of an unequal design with only 14 eels and 89.5% efficiency. LADES was developed as a powerful and simple tool to promote the use of statistical methods for analyzing and creating longitudinal experiments in biomedical research.

Vazquez-Alcocer, Alan; Garzon-Cortes, Daniel Ladislao; Sanchez-Casas, Rosa Maria

2014-01-01

418

Design and construction of an improved, portable, air-ion counter  

NASA Astrophysics Data System (ADS)

The widespread use of artificial air-ion generators in home, office and research laboratory has made the accurate measurement of ion concentration essential, but the necessary ion counters are rare, and the usual two-electrode type has serious shortcomings. The design and construction of a portable, battery-operated ion counter is described. It selects positive or negative small air-ions, and covers the natural range 100 10,000 ions/ml on an internal meter, and the research range of 10 100,000 ions/ml on an external meter, or chart recorder. Because of its three-electrode construction it will measure one polarity of ion in the presence of a one-thousandfold higher concentration of oppositely polarised ions. The apparatus is inexpensive, and may be readily constructed in any small workshop.

Moody, N. F.

1984-09-01

419

Alternative Shear Panel Configurations for Light Wood Construction. Development, Seismic Performance, and Design Guidance  

NASA Astrophysics Data System (ADS)

Shear panels are used in light wood construction to resist lateral loads resulting from earthquakes or strong winds. These panels are typically made of wooden sheathing nailed to building frame members, but this standard panel design interferes with the installation of sheet insulation. A non-insulated shear panel conducts heat between the building interior and exterior wasting considerable amounts of energy. Several alternative shear panel designs were developed to avoid this insulation-mounting problem and sample panels were tested according to standard cyclic test protocols. One of the alternative designs consisted of diagonal steel straps nailed directly to the structural framing. Several others consisted of sheathing nailed to 2 x 4 framing then set into a larger 2 x 6 structural frame in such a way that no sheathing protruded beyond the edge of the 2 x 6 members. Also samples of industry-standard shear panels were constructed and tested in order to establish a performance baseline. Analytical models were developed to size test panels and predict panel behavior. A procedure was developed for establishing design capacities based on both test data and established baseline panel design capacity. The behavior of each panel configuration is documented and recommended design capacities are presented.

Wilcoski, James; Fischer, Chad; Allison, Tim; Malach, Kelly Jo

2002-04-01

420

Design, construction, activation, and operation of a high intensity acoustic test chamber  

NASA Astrophysics Data System (ADS)

The design philosophy, construction, integration, and activation of the high intensity acoustic test chamber for production acceptance testing of satellites are discussed. The 32,000 cubic-foot acoustic test cell consists of a steel reinforced concrete chamber with six electropneumatic noise generators. One of the innovative features of the chamber is a unique quarter horn assembly that acoustically couples the noise generators to the chamber. Design concepts, model testing, and evaluation results are presented. Considerations such as nitrogen versus compressed air source, digital closed loop spectrum control versus manual equalizers, and microprocessor based interlock systems are included. Construction difficulties, anomalies encountered, and their resolution are also discussed. Results of the readiness testing are highlighted.

Kamel, L. T.

421

Multicell fluidized-bed boiler design, construction and test program. Interim report, July 1974June 1975  

Microsoft Academic Search

Design, construction and test program of a 300,000 lbs\\/hr steam generation capacity multicell fluidized-bed boiler (MFB), as a pollution-free method of burning high-sulfur coal, or highly corrosive coals without excessive problems, is being carried out. The concept involves burning fuels, such as coal, in a fluidized-bed of limestone particles that react with the sulfur compounds formed during combustion, to reduce

J. E. Mesko; R. R. Reed; J. Malik; R. L. Gamble; F. R. Warshany

1975-01-01

422

Design and construction of the NMSU Geothermally Heated Greenhouse Research Facility: Final technical report  

Microsoft Academic Search

This report describes the design, construction, and performance of the New Mexico State University (NMSU) Geothermal Greenhouse Research Facility. Two 6000-square-foot greenhouses were built on the NMSU campus and supplied with geothermal energy for heating. The geothermal water is pumped from one of three wells producing water at temperatures from 141\\/degree\\/F to 148\\/degree\\/F. Heat is delivered to the greenhouse space

Schoenmackers

1988-01-01

423

Design, construction, and properties of the large plasma research device - The LAPD at UCLA  

Microsoft Academic Search

The large plasma research device (LAPD), a large, linear plasma research device designed to study space plasma processes, has been constructed at UCLA over the past four years. The LAPD has a 0.50.5 m2 oxide-coated cathode as a source which produces a 10-m-long plasma column with densities up to the mid 1012\\/cm3 range. The linear machine is surrounded by a

W. Gekelman; H. Pfister; Z. Lucky; J. Bamber; D. Leneman; J. Maggs

1991-01-01

424

The design, construction and performance of the MICE scintillating fibre trackers  

NASA Astrophysics Data System (ADS)

Charged-particle tracking in the international Muon Ionisation Cooling Experiment (MICE) will be performed using two solenoidal spectrometers, each instrumented with a tracking detector based on 350 ?m diameter scintillating fibres. The design and construction of the trackers is described along with the quality-assurance procedures, photon-detection system, readout electronics, reconstruction and simulation software and the data-acquisition system. Finally, the performance of the MICE tracker, determined using cosmic rays, is presented.

Ellis, M.; Hobson, P. R.; Kyberd, P.; Nebrensky, J. J.; Bross, A.; Fagan, J.; Fitzpatrick, T.; Flores, R.; Kubinski, R.; Krider, J.; Rucinski, R.; Rubinov, P.; Tolian, C.; Hart, T. L.; Kaplan, D. M.; Luebke, W.; Freemire, B.; Wojcik, M.; Barber, G.; Clark, D.; Clark, I.; Dornan, P. J.; Fish, A.; Greenwood, S.; Hare, R.; Jamdagni, A.; Kasey, V.; Khaleeq, M.; Leaver, J.; Long, K. R.; McKigney, E.; Matsushita, T.; Rogers, C.; Sashalmi, T.; Savage, P.; Takahashi, M.; Tapper, A.; Yoshimura, K.; Cooke, P.; Gamet, R.; Sakamoto, H.; Kuno, Y.; Sato, A.; Yano, T.; Yoshida, M.; MacWaters, C.; Coney, L.; Hanson, G.; Klier, A.; Cline, D.; Yang, X.; Adey, D.

2011-12-01

425

Design and Construction of Deep Tubesheet Crevice Devices for Producing Intergranular Attack of Heat-Transfer Tubing. Final Report (PWR).  

National Technical Information Service (NTIS)

This topical report describes the design and construction of two Tubesheet Crevice Simulation Apparatus (TCSA's) which were built to reproduce intergranular attack of steam-generator heat-transfer tubing. The units include several design features renderin...

J. J. Krupowicz B. W. Kinyon L. M. Russell

1983-01-01

426

Design, construction, and evaluation of an inhalation system for exposing experimental animals to environmental tobacco smoke.  

PubMed

An inhalation system was designed to expose experimental animals to aged and diluted sidestream smoke (ADSS), used as a surrogate for environmental tobacco smoke (ETS). The construction of the smoke generator and of the smoke dilution systems is described. Target ADSS concentrations in a 90-day inhalation study were 0.1, 1, and 10 mg/m3 of respirable suspended particulates (RSP). Data is presented on the physical and chemical composition of the smoke presented to animals at or near these target RSP concentrations. The design of the inhalation laboratory was shown to result in highly reproducible respirable aerosols that were effective surrogates of ETS. PMID:7942514

Ayres, P H; Mosberg, A T; Coggins, C R

1994-09-01

427

Design and Construction of a Preparative-Scale Dynamic Field Gradient Focusing Apparatus  

PubMed Central

A linear model is used to show that dynamic field gradient focusing (DFGF) can be scaled to preparative capacity, ~O (10 mgs). This paper explains how the preparative-scale DFGF apparatus was designed and fabricated. Scaled-down experiments and mathematical modeling guided material selection and design changes during construction to increase the probability that the prototype preparative-scale DFGF apparatus would perform as intended. The finished prototype successfully focused bovine hemoglobin from an initial concentration of 6.82 to 15 mg/mL and allowed for 86% recovery of injected protein.

Tracy, Noah I.; Huang, Zheng; Ivory, Cornelius F.

2010-01-01

428

Construction and calibration of a new design of fiber optic respiratory plethysmograph (FORP)  

NASA Astrophysics Data System (ADS)

The Fiber Optic Respiratory Plethysmograph (FORP) is a non-invasive instrument for respiratory and heart monitoring in humans, based on the design of the Respiratory Inductive Plethysmograph (RIP. The FORP uses two sensors at thoracic and abdominal levels that measure circumferences rather than the cross sectional areas measured by the RIP. Each sensor is made of a specifically looped optical fiber that responds to elongation with variation in light transmission, via the macrobending loss effect. The design and construction of the original version of the FORP has been reported previously 1. This paper presents the results of a new figure-of-eight construction for the fiber loops. The resulting system shows greater signal range, increased linearity and less hysteresis than former constructions. Results are presented detailing the calibration of the respiratory measurements against a spirometer using a range of calibration protocols, one based on isovolume breathing and others on a Least Mean Square (LMS) fit. Additional improvements to signal processing and the increased sensitivity of the new design now make it practicable to detect torso motion arising from cardiac activity. This paper also presents results showing the simultaneous monitoring of respiratory and cardiac signals, using only the FORP transducers.

Maletras, Francois-Xavier; Augousti, Andreas T.; Mason, Julian

2001-11-01

429

[Principles and methodology for ecological rehabilitation and security pattern design in key project construction].  

PubMed

Global ecological security becomes increasingly important with the intensive human activities. The function of ecological security is influenced by human activities, and in return, the efficiency of human activities will also be affected by the patterns of regional ecological security. Since the 1990s, China has initiated the construction of key projects "Yangtze Three Gorges Dam", "Qinghai-Tibet Railway", "West-to-East Gas Pipeline", "West-to-East Electricity Transmission" and "South-to-North Water Transfer" , etc. The interaction between these projects and regional ecological security has particularly attracted the attention of Chinese government. It is not only important for the regional environmental protection, but also of significance for the smoothly implementation of various projects aimed to develop an ecological rehabilitation system and to design a regional ecological security pattern. This paper made a systematic analysis on the types and characteristics of key project construction and their effects on the environment, and on the basis of this, brought forward the basic principles and methodology for ecological rehabilitation and security pattern design in this construction. It was considered that the following issues should be addressed in the implementation of a key project: 1) analysis and evaluation of current regional ecological environment, 2) evaluation of anthropogenic disturbances and their ecological risk, 3) regional ecological rehabilitation and security pattern design, 4) scenario analysis of environmental benefits of regional ecological security pattern, 5) re-optimization of regional ecological system framework, and 6) establishment of regional ecosystem management plan. PMID:17552212

Chen, Li-Ding; Lu, Yi-He; Tian, Hui-Ying; Shi, Qian

2007-03-01

430

Economic analysis for military construction design. Concepts, techniques, and applications for the analyst. Student's manual  

SciTech Connect

The manual is the class workbook for a five-day course, 'Economic Analysis for Military Construction Design: Concepts, Techniques, and Applications for the Analyst'. The course equips design professionals to conduct, document, and review economic studies of building and facility design alternatives in accordance with Army and Air Force requirements. It demonstrates a variety of applications through realistic examples and case studies. The workbook covers 16 training modules; including orientation, pre and post tests, aids to learning, time value of money, mathematical operations, general economic studies, energy conservation studies, data, computer software, and uncertainty and risk analysis. Each of the technical modules lists learning objectives and summarizes key points. The manual is designed not as a stand-alone tutorial, but as a working document for a course taught by an instructor who provides additional information.

Ruegg, R.T.; Fuller, S.K.

1991-09-01

431

42 CFR 137.376 - Are design and construction projects performed by Self-Governance Tribes under section 509 of the...  

Code of Federal Regulations, 2012 CFR

...2012-10-01 false Are design and construction projects performed by Self-Governance...SERVICES TRIBAL SELF-GOVERNANCE Construction Other § 137.376 Are design and construction projects performed by...

2012-10-01

432

7 CFR 220.16 - Procurement standards.  

Code of Federal Regulations, 2012 CFR

...Agriculture (Continued) FOOD AND NUTRITION SERVICE, DEPARTMENT OF AGRICULTURE CHILD NUTRITION PROGRAMS SCHOOL BREAKFAST PROGRAM § 220.16 Procurement...a) General. State agencies and school food authorities shall...

2014-01-01

433

48 CFR 23.204 - Procurement exemptions.  

Code of Federal Regulations, 2010 CFR

...REGULATION SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE...WORKPLACE Energy and Water Efficiency and Renewable Energy 23.204 Procurement exemptions....

2010-10-01

434

48 CFR 23.204 - Procurement exemptions.  

Code of Federal Regulations, 2012 CFR

...REGULATION SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE...WORKPLACE Energy and Water Efficiency and Renewable Energy 23.204 Procurement exemptions....

2012-10-01

435

48 CFR 1323.204 - Procurement exemptions.  

Code of Federal Regulations, 2010 CFR

...COMMERCE SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE...WORKPLACE Energy and Water Efficiency and Renewable Energy 1323.204 Procurement exemptions....

2010-10-01

436

48 CFR 1323.204 - Procurement exemptions.  

Code of Federal Regulations, 2012 CFR

...COMMERCE SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE...WORKPLACE Energy and Water Efficiency and Renewable Energy 1323.204 Procurement exemptions....

2012-10-01

437

48 CFR 23.204 - Procurement exemptions.  

Code of Federal Regulations, 2011 CFR

...REGULATION SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE...WORKPLACE Energy and Water Efficiency and Renewable Energy 23.204 Procurement exemptions....

2011-10-01

438

48 CFR 1323.204 - Procurement exemptions.  

Code of Federal Regulations, 2011 CFR

...COMMERCE SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE...WORKPLACE Energy and Water Efficiency and Renewable Energy 1323.204 Procurement exemptions....

2011-10-01

439

76 FR 43988 - Procurement List; Additions  

Federal Register 2010, 2011, 2012, 2013

...impact on a substantial number of small entities. The major factors considered for this certification were: 1. The action will...should not add this project to the Procurement List for several reasons including (1) Financial impact on the current...

2011-07-22

440

77 FR 41377 - Procurement List; Additions  

Federal Register 2010, 2011, 2012, 2013

...services are added to the Procurement List: Products NSNs: MR 1169--Set, Bowl and Lid, Blue, 4 Piece. MR 1168--Carrier, Cake and Cupcake, Collapsible. NPA: Industries for the Blind, Inc., West Allis, WI. Contracting Activity: Defense...

2012-07-13

441

77 FR 19263 - Procurement List; Proposed Deletions  

Federal Register 2010, 2011, 2012, 2013

...products are proposed for deletion from the Procurement List: Products NSN: 8920-00-823-7221--Cake Mix NSN: 8920-00-823-7223--Cake Mix NSN: 8920-01-250-9522--Pancake Mix NPA: Advocacy and Resources Corporation,...

2012-03-30

442

49 CFR 19.44 - Procurement procedures.  

Code of Federal Regulations, 2010 CFR

...Transportation 1 2010-10-01 2010-10-01 false Procurement...contract modification changes the scope of a contract...and section 9129 of the Aviation Safety and Capacity Expansion...Chapter I, section...

2010-10-01

443

78 FR 23542 - Procurement List Additions  

Federal Register 2010, 2011, 2012, 2013

...following products and services are added to the Procurement List: Products NSN: 7045-00-NIB-0393--Privacy Filter, LCD Monitor, 16:9 Aspect Ratio, 24 Widescreen NPA: Wiscraft, Inc., Milwaukee, WI Contracting Activity: Federal...

2013-04-19

444

Standard Procurement System Use and User Satisfaction.  

National Technical Information Service (NTIS)

The audit was performed in response to concerns expressed by the Chairman, House of Representatives Committee on Budget that DoD was not effectively spending Federal funds to acquire the Standard Procurement System (SPS) and SPS lacked needed functionalit...

2001-01-01

445

77 FR 23665 - Procurement List Additions  

Federal Register 2010, 2011, 2012, 2013

...following product and service are added to the Procurement List: Product NSN: 6510-00-786-3736--Pad, Isopropyl Alcohol Impregnated, 1'' x 1.375''. NPA: Lighthouse of Central Florida, Orlando, FL. Contracting Activity:...

2012-04-20

446

77 FR 11072 - Procurement List; Proposed Additions  

Federal Register 2010, 2011, 2012, 2013

...Procurement List for production by the nonprofit agencies listed: Product NSN: 6510-00-786-3736--Pad, Isopropyl Alcohol Impregnated, 1'' x 1.375''. NPA: Lighthouse Central Florida, Orlando, FL. Contracting Activity:...

2012-02-24

447

76 FR 34063 - Procurement List; Additions  

Federal Register 2010, 2011, 2012, 2013

...Certification Accordingly, the following products and services are added to the Procurement List: Products NSN: MR 899--Slicer, Pineapple, Stainless; NSN: MR 1136--Mug, Seasonal; NSN: MR 1135--Set, Spreader, 4Pc; NPA: Industries for the...

2011-06-10

448

76 FR 14943 - Procurement List; Proposed Additions  

Federal Register 2010, 2011, 2012, 2013

...proposed for addition to Procurement List for production by the nonprofit agency listed: Products NSN: MR 899--Slicer, Pineapple, Stainless NSN: MR 1135--Set, Spreader, 4Pc NSN: MR 1136--Mug, Seasonal NPA: Industries for the Blind,...

2011-03-18

449

21 CFR 1403.36 - Procurement.  

Code of Federal Regulations, 2010 CFR

... Food and Drugs OFFICE OF NATIONAL DRUG CONTROL POLICY UNIFORM ADMINISTRATIVE...Any arbitrary action in the procurement process. (2) Grantees and subgrantees...pertaining to patent rights with respect to any discovery or invention which arises or is...

2010-04-01

450

21 CFR 1403.36 - Procurement.  

Code of Federal Regulations, 2010 CFR

... Food and Drugs OFFICE OF NATIONAL DRUG CONTROL POLICY UNIFORM ADMINISTRATIVE...Any arbitrary action in the procurement process. (2) Grantees and subgrantees...pertaining to patent rights with respect to any discovery or invention which arises or is...

2009-04-01

451

76 FR 22680 - Procurement List; Proposed Addition  

Federal Register 2010, 2011, 2012, 2013

...ARE BLIND OR SEVERELY DISABLED Procurement List; Proposed...Are Blind or Severely Disabled. ACTION: Proposed...Are Blind or Severely Disabled, Jefferson Plaza 2...Contact Center Service. Human Resources Command Contact...

2011-04-22

452

42 CFR 121.6 - Organ procurement.  

Code of Federal Regulations, 2012 CFR

...suitability of organs donated for transplantation shall be determined as follows: (a) Tests. An OPTN member procuring an organ shall assure that laboratory tests and clinical examinations of potential organ donors are performed to determine...

2012-10-01

453

76 FR 9555 - Procurement List; Proposed Deletions  

Federal Register 2010, 2011, 2012, 2013

...following products are proposed for deletion from the Procurement List: Products NSN: 5350-00-229-3081--Cloth, Abrasive. NPA: Louisiana Association for the Blind, Shreveport, LA. NSN: 7930-01-512-7758--Food Service Cleaner....

2011-02-18

454

Green Procurement: Army Progress, Installation Challenges.  

National Technical Information Service (NTIS)

The purpose is to provide information on the status of new initiatives for the advancement of the Army Green Procurement Program (GPP). The presentation contains the following sections: Army Policy Update, Army Strategy Document, Installation GPP Developm...

B. Martin

2011-01-01

455

Factors influencing global antiretroviral procurement prices  

PubMed Central

Background Antiretroviral medicines (ARVs) are one of the most costly parts of HIV/AIDS treatment. Many countries are struggling to provide universal access to ARVs for all people living with HIV and AIDS. Although substantial price reductions of ARVs have occurred, especially between 2002 and 2008, achieving sustainable access for the next several decades remains a major challenge for most low- and middle-income countries. The objectives of the present study were twofold: first, to analyze global ARV prices between 2005 and 2008 and associated factors, particularly procurement methods and key donor policies on ARV procurement efficiency; second, to discuss the options of procurement processes and policies that should be considered when implementing or reforming access to ARV programs. Methods An ARV-medicines price-analysis was carried out using the Global Price Reporting Mechanism from the World Health Organization. For a selection of 12 ARVs, global median prices and price variation were calculated. Linear regression models for each ARV were used to identify factors that were associated with lower procurement prices. Logistic regression models were used to identify the characteristics of those countries which procure below the highest and lowest direct manufactured costs. Results Three key factors appear to have an influence on a country's ARV prices: (a) whether the product is generic or not; (b) the socioeconomic status of the country; (c) whether the country is a member of the Clinton HIV/AIDS Initiative. Factors which did not influence procurement below the highest direct manufactured costs were HIV prevalence, procurement volume, whether the country belongs to the least developed countries or a focus country of the United States President's Emergency Plan For AIDS Relief. Conclusion One of the principal mechanisms that can help to lower prices for ARV over the next several decades is increasing procurement efficiency. Benchmarking prices could be one useful tool to achieve this.

2009-01-01

456

Implementing automated procurement engineering at BG&E  

Microsoft Academic Search

Baltimore Gas and Electric's (BG&E's) approach to implementing an automated procurement engineering process is presented. The process emphasizes part safety classification, procurement specification, and warehouse description standardization, of a limited population of the most frequently procured parts (stocked replacement items for safety-related systems, structures, and components). Logical grouping of over 10000 stock items resulted in consolidation to 275 automated procurement

K. B. Cellars; J. A. Spina; M. A. Elzey; E. F. McGinn; M. R. Winsor

1992-01-01

457

Design and construction of a series of compact humanoid robots and development of biped walk control strategies  

Microsoft Academic Search

Design and construction of compact body humanoid robots and various biped locomotion control strategies implemented onto them in the ESYS humanoid project at the Engineering Systems Laboratory are presented. Design concepts and hardware specifications of the constructed compact size humanoid robots from Mk.1 to Mk.5 are discussed. As for the biped walk control, four biped locomotion control strategies all of

Takayuki Furuta; Tetsuo Tawara; Yu Okumura; Masaharu Shimizu; Ken Tomiyama

2001-01-01

458

In silico design, construction and cloning of Trastuzumab humanized monoclonal antibody: A possible biosimilar for Herceptin  

PubMed Central

Background: There is a novel hypothesis in that antibodies may have specificity for two distinct antigens that have been named dual specificity. This hypothesis was evaluated for some defined therapeutic monoclonal antibodies (mAbs) such as Trastuzumab, Pertuzumab, Bevacizumab, and Cetuximab. In silico design and construction of expression vectors for trastuzumab monoclonal antibody also in this work were performed. Materials and Methods: First, in bioinformatics studies the 3D structures of concerned mAbs were obtained from the Protein Data Bank (PDB). Three-dimensional structural alignments were performed with SIM and MUSTANG softwares. AutoDock4.2 software also was used for the docking analysis. Second, the suitable genes for trastuzumab heavy and light chains were designed, synthesized, and cloned in the prokaryotic vector. These fragments individually were PCR amplified and cloned into pcDNA 3.3-TOPO and pOptiVEC TOPO shuttle vectors, using standard methods. Results: First, many bioinformatics tools and softwares were applied but we did not meet any new dual specificity in the selected antibodies. In the following step, the suitable expression cascade for the heavy and light chains of Trastuzumab therapeutic mAb were designed and constructed. Gene cloning was successfully performed and created constructs were confirmed using gene mapping and sequencing. Conclusions: This study was based on a recently developed technology for mAb expression in mammalian cells. The obtained constructs could be successfully used for biosimilar recombinant mAb production in CHO DG44 dihydrofolate reductase (DHFR) gene deficient cell line in the suspension culture medium.

Akbarzadeh-Sharbaf, Soudabeh; Yakhchali, Bagher; Minuchehr, Zarrin; Shokrgozar, Mohammad Ali; Zeinali, Sirous

2012-01-01

459

Design and Construction of an Optical Computed Tomography Scanner for Polymer Gel Dosimetry Application  

PubMed Central

Polymer gel dosimeter is the only accurate three dimensional (3D) dosimeter that can measure the absorbed dose distribution in a perfect 3D setting. Gel dosimetry by using optical computed tomography (OCT) has been promoted by several researches. In the current study, we designed and constructed a prototype OCT system for gel dosimetry. First, the electrical system for optical scanning of the gel container using a Helium-Neon laser and a photocell was designed and constructed. Then, the mechanical part for two rotational and translational motions was designed and step motors were assembled to it. The data coming from photocell was grabbed by the home-built interface and sent to a personal computer. Data processing was carried out using MATLAB software. To calibrate the system and tune up the functionality of it, different objects was designed and scanned. Furthermore, the spatial and contrast resolution of the system was determined. The system was able to scan the gel dosimeter container with a diameter up to 11 cm inside the water phantom. The standard deviation of the pixels within water flask image was considered as the criteria for image uniformity. The uniformity of the system was about 0.05%. The spatial resolution of the system was approximately 1 mm and contrast resolution was about 0.2%. Our primary results showed that this system is able to obtain two-dimensional, cross-sectional images from polymer gel samples.

Zakariaee, Seyed Salman; Mesbahi, Asghar; Keshtkar, Ahmad; Azimirad, Vahid

2014-01-01

460

Design and construction of an optical computed tomography scanner for polymer gel dosimetry application.  

PubMed

Polymer gel dosimeter is the only accurate three dimensional (3D) dosimeter that can measure the absorbed dose distribution in a perfect 3D setting. Gel dosimetry by using optical computed tomography (OCT) has been promoted by several researches. In the current study, we designed and constructed a prototype OCT system for gel dosimetry. First, the electrical system for optical scanning of the gel container using a Helium-Neon laser and a photocell was designed and constructed. Then, the mechanical part for two rotational and translational motions was designed and step motors were assembled to it. The data coming from photocell was grabbed by the home-built interface and sent to a personal computer. Data processing was carried out using MATLAB software. To calibrate the system and tune up the functionality of it, different objects was designed and scanned. Furthermore, the spatial and contrast resolution of the system was determined. The system was able to scan the gel dosimeter container with a diameter up to 11 cm inside the water phantom. The standard deviation of the pixels within water flask image was considered as the criteria for image uniformity. The uniformity of the system was about 0.05%. The spatial resolution of the system was approximately 1 mm and contrast resolution was about 0.2%. Our primary results showed that this system is able to obtain two-dimensional, cross-sectional images from polymer gel samples. PMID:24761377

Zakariaee, Seyed Salman; Mesbahi, Asghar; Keshtkar, Ahmad; Azimirad, Vahid

2014-04-01

461

Improvement of sand filter and constructed wetland design using an environmental decision support system.  

PubMed

With the aim of improving effluent quality of waste stabilization ponds, different designs of vertical flow constructed wetlands and intermittent sand filters were tested on an experimental full-scale plant within the framework of a European project. The information extracted from this study was completed and updated with heuristic and bibliographic knowledge. The data and knowledge acquired were difficult to integrate into mathematical models because they involve qualitative information and expert reasoning. Therefore, it was decided to develop an environmental decision support system (EDSS-Filter-Design) as a tool to integrate mathematical models and knowledge-based techniques. This paper describes the development of this support tool, emphasizing the collection of data and knowledge and representation of this information by means of mathematical equations and a rule-based system. The developed support tool provides the main design characteristics of filters: (i) required surface, (ii) media type, and (iii) media depth. These design recommendations are based on wastewater characteristics, applied load, and required treatment level data provided by the user. The results of the EDSS-Filter-Design provide appropriate and useful information and guidelines on how to design filters, according to the expert criteria. The encapsulation of the information into a decision support system reduces the design period and provides a feasible, reasoned, and positively evaluated proposal. PMID:18574198

Turon, Cludia; Comas, Joaquim; Torrens, Antonina; Molle, Pascal; Poch, Manel

2008-01-01

462

Design criteria for a printed tissue engineering construct: a mathematical homogenization approach.  

PubMed

Cartilage tissue repair procedures currently under development aim to create a construct in which patient-derived cells are seeded and expanded ex vivo before implantation back into the body. The key challenge is producing physiologically realistic constructs that mimic real tissue structure and function. One option with vast potential is to print strands of material in a 3D structure called a scaffold that imitates the real tissue structure; the strands are composed of gel seeded with cells and so provide a template for cartilaginous tissue growth. The scaffold is placed in the construct and pumped with nutrient-rich culture medium to supply nutrients to the cells and remove waste products, thus promoting tissue growth. In this paper we use asymptotic homogenization to determine the effective flow and transport properties of such a printed scaffold system. These properties are used to predict the distribution of nutrient/waste products through the construct, and to specify design criteria for the scaffold that will optimize the growth of functional tissue. PMID:19361531

Shipley, R J; Jones, G W; Dyson, R J; Sengers, B G; Bailey, C L; Catt, C J; Please, C P; Malda, J

2009-08-01

463

Design and construction of a demonstration residence utilizing natural thermal storage  

SciTech Connect

The Brookhaven House is an energy conserving residence which demonstrates how thermal mass combined with solar energy can be used to reduce heating costs in a conventional single-family house. The purpose of the project was to develop a prototypical house design that could result in immediate energy savings by being an acceptable, attractive design to developers, builders, and home buyers. Investigations were limited to only materials and methods of construction that were considered presently available and of Natural Thermal Storage design. Natural thermal storage is simply the heat storage obtained through architectural application of massive building materials integrated into the living space and structure of a residence. The research work involved analyzing many buildable configurations of thermal mass and combining their potential benefit with a variety of energy sources. It has been concluded that relatively thin mass walls of masonry directly irradiated through a multiglazed south facing aperture can significantly reduce annual heating requirements.

Jones, R.F.; Ghaffari, H.T.

1981-01-01

464

Design and construction of Spatial Decision Support System database based on metadata  

NASA Astrophysics Data System (ADS)

The Spatial Decision Support System (SDSS), as an emerging field of science and technology, is combined by Geographic Information System (GIS) and decision support system (DSS). Nowadays, more and more attentions have been paid to the technology of SDSS, and the construction of geographic database in SDSS has been a hot-spot for many years. One of the commonly used methods in geographical data management is directly entry spatial and attributes information into the relational database (generally used the Oracle relational database). Metadata plays an important role in process of building and in spatial data management. A case study is introduced. The Beijing Rural Resource Management Geographical Information System (BJRMGIS) is designed for the Beijing Agricultural Research Center, aiming for rural spatial decision support to facilitate its analysis operations. The paper mainly contains two parts from the viewpoint of database, that is, the design of database metadata table and the function of database maintenance. (1) The frame of metadata. According to report of needs analysis, the data in BJRMGIS are classified into four categories: fundamental data, remotely sensed image data, statistical data and multimedia data. Moreover, the map is a special form of data. (2) The database maintenance functions include three modules, that is, user management, database import and database management. This paper put forward the metadata-based database management decision support system model, and process from the practical problems to solve the applications. Also, the construction provides a reference for designing of other similar SDSS systems.

Huang, Wenli; Liu, Huiping; Luan, Qingzu; Liu, Junping; Liu, Hua

2009-10-01

465

Mechanical design and construction new transport reactor system. Second quarterly progress report, January--March 1995  

SciTech Connect

During the last quarter, the detailed mechanical design of the new reactor system was completed and construction of the unit was well underway. The new design includes a mixing zone, riser reactor, cyclone, and downcomer as well as instrumentation, heating elements, insulation, and a structural system for supporting the unit. Design modifications were also made to the hydrocarbon feed system. There were no changes required for the downstream sections which cool and condition the reactor product gas, recover liquid products (if any), and measure product gas make. Construction of the unit is expected to be completed by early May, with shakedown runs beginning immediately after. Installation of the electrical windings, insulation of the unit, erection, hook-up, and checkout are the main items yet to be completed. It is expected that the unit will be ready for test work in the latter part of May. The initial tests planned are both pyrolysis runs and partial oxidation runs using a simulated aromatic naphtha feed. Later this year, heavier hydrocarbon feeds will be tested.

NONE

1995-04-01

466

The design and construction of a pulsed beam generation system based on high intensity cyclotron  

NASA Astrophysics Data System (ADS)

In order to perform the studies on a pulsed beam generation system based on a high intensity cyclotron, a test beam line with a pulsed beam generation for a 10 MeV compact cyclotron (CYCIAE-10) has been designed and constructed at China Institute of Atomic Energy (CIAE). A 70 MHz continuous H-beam can be pulsed to the pulse length of less than 10 ns with a repetition rate of 4.4 MHz. The sine waveform with a frequency of 2.2 MHz is adopted for the chopper and a mesh structure with single drift and dual gaps is used for the 70 MHz buncher. A helical resonator is designed and constructed based on simulations and experiments on the RF matching for the chopper. A helical inductance loop that is exceptionally large of its kind and equipped with water cooling for the resonator has been successfully wound and a 500 W solid RF amplifier has been manufactured. A special measuring device has been designed, which can be used to measure both the DC beam and the pulsed beam. The required pulsed beam was obtained after pulsed beam tuning.

An, ShiZhong; Yin, ZhiGuo; Li, PengZhan; Song, GuoFang; Wu, LongCheng; Guan, FengPing; Xie, HuaiDong; Jia, XianLu; Lu, YinLong; Zhang, TianJue

2011-12-01

467

Design, construction, and initial operation of the Los Alamos National Laboratory salt-gradient solar pond  

SciTech Connect

A 232 m/sup 2/ solar pond was constructed at Los Alamos National Laboratory for the purpose of studying pond hydrodynamics on a large scale and to complement the flow visualization and one-dimensional pond simulator experiments that are ongoing at the Laboratory. Design methods and construction techniques, some of which are unique to this pond, are described in detail. The pond was excavated from a soft volcanic rock known as tuff; such rock forms a large fraction of the Los Alamos area surface geology. Because tuff has a small thermal conductivity, little insulation was required to reduce perimeter energy losses. In addition, the strength of tuff permitted the pond to be built with vertical side walls; this design eliminated local side wall convection in the gradient zone that is possible with sloping side walls. Instrumentation in the pond consists of traversing and fixed rakes of thermometers and salinity probes, an underwater pyranometer, and a weather station. The traversing rake is a wheeled trolley driven vertically on a rectangular rail. Installed on the trolley are coplanar platinum RTDs, a point conductivity probe, and an induction salinometer. The stationary rake supports 28 thermocouples and 28 sample-fluid withdrawal taps located every 10 cm. About 127 T of sodium chloride has been introduced and is nearly dissolved. A 120-cm-thick salinity gradient was established and the pond is heating. Preliminary results indicate a lower-convective-zone heating rate of 1.2/sup 0/C/day during the pond's first month of operation. Recommendations on pond design, construction, and instrumentation are presented.

Jones, G.F.; Meyer, K.A.; Hedstrom, J.C.; Dreicer, J.S.; Grimmer, D.P.

1983-01-01

468

Design, construction, and validation of an MRI-compatible vibrotactile stimulator intended for clinical use.  

PubMed

Vibrotactile stimulation has been used successfully to activate the human somatosensory pathway in functional magnetic resonance imaging (fMRI) experiments. The design and characterization of these devices are of particular interest in frequency discrimination tasks and investigations of the somatopic organization of sensory areas. However, few have investigated the utility of vibrotactile stimulation in a clinical context. We have previously demonstrated that vibrotactile stimulation can provide robust activations in areas targeted in stereotactic functional neurosurgical procedures used for tumour resection (i.e.: primary and secondary somatosensory areas) and subcortical targets for thalamic pain and movement disorders (i.e.: sensory thalamus). The main contribution of this manuscript is the presentation of the design, materials, construction, and validation of a novel vibrotactile stimulator intended for clinical use. The thalamic activations are also compared to a digital atlas in order to evaluate anatomical localization. The proposed stimulator was constructed entirely from non-ferromagnetic parts, uses compressed air to deliver stimulation using computer control, and stimulates the entirety of the hand and fingers to ensure robust somatosensory activations. In addition, this stimulator is constructed entirely from "off-the-shelf" parts and would be easily replicated due to the simplicity of design and the relatively small expense of the parts required. The device was tested by stimulating the right hand of 10 normal controls (5 females, 5 males, all right handed; age range: 25-42 years, mean: 30.9 years, standard deviation: 5.2 years) during an fMRI experiment. The results demonstrate significant single subject activations of primary and secondary somatosensory cortices and of the sensory thalamus. PMID:19631690

Chakravarty, M Mallar; Broadbent, Scott; Rosa-Neto, Pedro; Lambert, Casey M; Collins, D Louis

2009-10-30

469

Design and construction of a tensile tester for the testing of simple composites  

NASA Technical Reports Server (NTRS)

The following is a design for a tensile tester which will be used to test the tensile strength and anisotropic properties of simple composites. These simple composites are suspected to be anisotropic primarily in a single plane. When the composites undergo a tensile force, they will undergo deformation, causing movement either to the left or right. The composites are suspect due to their method of construction. Each sample has a single layer of unidirectional continuous fibers embedded in a rubbery resin. It has been well established that a serious limitation of unidirectional fiber composites is the very large in-plane anisotropy. The design presented here incorporates a single degree of freedom such that distortion (to the left or right) due to anisotropic tendencies may be measured. The device will spend the vast majority of its time in an undergraduate materials lab. As a result, ease of use and durability are valued more highly than research grade accuracy. Additional concerns focus on the fact that this machine will be built as a student project. Issues which are dealt with during this design include: specimen configuration or shape; a method of applying consistent, linear tension force; a method of gripping specimen without affecting its overall properties; a method of collecting data; repeatability of data; ease of use; ease of construction; and cost. After the device has been constructed, it will be used to test the simple composites which were fabricated in house. A comparison will be made between composites manufactured using aluminum screening as the strengthening fibers and those manufactured using fiberglass screening.

Borst, Mark A.; Spiegel, F. Xavier

1994-01-01

470

Design and construction of pre-stressed piezoelectric unimorph for trailing edge flap actuation  

NASA Astrophysics Data System (ADS)

This paper presents a trailing edge flap actuation mechanism using a novel pre-stressed piezoelectric unimorph, PUMPS (Piezoelectric Unimorph with Mechanically Pre-stressed Substrate). Experimental evaluation of actuation performance such as force-displacement characteristics of PUMPS actuators showed that the performance of PUMPS satisfied the requirements for trailing edge flap actuation. Subsequently, flap actuation mechanisms were designed and constructed with several slot types in the flaps, and stacked PUMPS actuators were applied to the flap actuation mechanisms. Experimental study of the test wing models with four flaps was accomplished, and the flap angle was achieved up to +/-5.5 within 15Hz under maximum applicable voltage.

Kang, Lae-Hyong; Lee, Jong-Won; Han, Jae-Hung

2009-07-01

471

Initial Design and Construction of a Mobil Regenerative Fuel Cell System  

NASA Technical Reports Server (NTRS)

The design and initial construction of a mobile regenerative power system is described. The main components of the power system consists of a photovoltaic array, regenerative fuel cell and electrolyzer. The system is mounted on a modified landscape trailer and is completely self contained. An operational analysis is also presented that shows predicted performance for the system at various times of the year. The operational analysis consists of performing an energy balance on the system based on array output and total desired operational time.

Colozza, Anthony J.; Maloney, Thomas; Hoberecht, Mark (Technical Monitor)

2003-01-01

472

Design and construction of a prototype in situ geotechnical testing system: Final progress report  

SciTech Connect

This progress report documents significant accomplishments related to the completion of the subject project. Current activities, difficulties which have been encountered and solutions to these difficulties are discussed and a near-term outlook is provided. The goal of the subject project is to construct a laboratory prototype of a proposed in situ geotechnical testing system for determining cyclic and dynamic properties of soil deposits. Such properties are often needed for the earthquake resistant design of critical energy-related facilities (offshore oil production platforms and islands, power plants, dams, etc.). 5 figs.

Not Available

1988-11-20

473

Comparing the Planning and Performance of Direct Labour and Design-Bid-Build Construction Projects in Nigeria  

Microsoft Academic Search

This study compares the levels of planning and the outcome of projects procured by direct labour and traditional contract procurement options. For this comparison, a survey of 130 projects was carried out. Data were collected using structured questionnaires and analysed using percentage, mean and t-test. The study discovers that whereas the levels of conception and overall planning done in projects

Godwin Iroroakpo Idoro

2012-01-01

474

General Services Administration Streamlines the Procurement of Construction Services.  

National Technical Information Service (NTIS)

The General Services Administration (GSA) Heartland Region is implementing a best value process (which minimizes time and cost deviations 98% of the time) and which minimizes the need for client's decision making, transfers the risk and control of a proje...

D. T. Kashiwagi J. Kashiwagi J. Meyer S. R. Witt

2010-01-01

475

Soil Property Database for Design, Construction, Operation and Management of Agricultural Water Management Systems for Irrigation, Constructed Wetlands, Drainage, and Environmental Considerations  

Microsoft Academic Search

A comprehensive soil property database is being developed as a major component of the Ohio Agricultural Water Management Guide. The soil property database includes soil physical and chemical parameters required for the evaluation, design, construction, and operation and management of agricultural water management systems and their components for the central concept of all of the state's soil series. Focal areas

L. Tornes; B. C. Atherton; L. C. Brown; R. M. Gehring; B. Slater; J. R. Steiger; M. DeBrock

476

DESIGN, CONSTRUCTION, AND STATUS OF ALL NIOBIUM SUPERCONDUCTING PHOTOINJECTOR AT BNL.  

SciTech Connect

We present here the design and construction of an all niobium superconducting RF injector to generate high average current, high brightness electron beam. A 1/2 cell superconducting cavity has been designed, built, and tested. A cryostat has been built to cool the cavity to {approx}2 K. The RF system can deliver up to 500 W at 1.3 GHz to the cavity. A mode-locked Nd:YVO{sub 4} laser, operating at 266 nm with 0.15 W average power, phase locked to the RF, will irradiate a laser cleaned Nb surface at the back wall of the cavity. Description of critical components and their status are presented in the paper. Based on DC measurements, QE of up to 10{sup 4} can be expected from such cavity.

SRINIVASAN-RAO,T.BEN-ZVI,I.BURRILL,A.CITVER,G.ET AL.

2004-05-12

477

Design and construction of a large aperture, quadrupole electromagnet prototype for ILSE  

SciTech Connect

We are currently constructing a prototype quadrupole electromagnet for the proposed Induction Linac Systems Experiment (ILSE) at LBL. ILSE will address many physi and engineering issues relevant to the design of a heavy-ion fusion driver accelerator. The pulsed electromagnet has two layers of current windings and will produce a field gradient exceeding 25 T/m at a repetition rate of 1 Hz steady-state. In this paper, we discuss how the interaction of various concerns such as maximum dynamic aperture, short lattice period, field quality, iron yoke weight, heat transfer, and voltage standoff have led to our particular design choices. We also present 2- and 3-D numerical calculations concerning field topography and the results of transport simulations of space-charge dominated ion beams with ILSE parameters.

Stuart, M.; Faltens, A.; Fawley, W.M.; Peters, C.; Vella, M.C.

1995-04-01

478

Design and construction of a large aperture quadrupole electromagnet for ILSE  

SciTech Connect

We are currently constructing a prototype quadrupole electromagnet for the proposed Induction Linac Systems Experiment (ILSE) at LBNL. ILSE will address many physics and engineering issues relevant to the design of a heavy-ion fusion driver accelerator. The pulsed electromagnet has two layers of current windings and will produce a field gradient of 28 T/m, wi a usable aperture of 6 cm. It operates at a repetition rate of 1 Hz, steady-state. In this paper, we discuss how the interaction of various concerns such as maximum dynamic aperture, short lattice period, field quality, iron yoke weight, heat transfer, and voltage standoff have led to our particular design choices. We also present 2- and 3-D numerical calculations concerning field topography and the results of transport simulations of space-charge dominated ion beams with ILSE parameters.

Fawley, W.M.; Vella, M.C.; Peters, C.; Stuart, M.; Faltens, A.

1995-08-01

479

Development of guidelines for design and construction of hospitals and health care facilities.  

PubMed

The Guidelines for Design and Construction of Hospitals and Health Care Facilities is the most widely referred to design document in the USA and is influential throughout the world. The Facility Guidelines Institute (FGI) was founded to provide continuity in the guidelines revision process. FGI functions as a contractual, fundraising, and coordinating entity to develop and enhance the content and format of guidelines publications and of ancillary services that encourage and improve their application and use. The Guidelines and the methodology for revising them have been, and still are, in an evolutionary process. It is the desire of the AIA/AAH and FGI to see that the process continues to change and improve with each passing cycle. PMID:14963892

Sprague, Joseph G

2003-01-01

480

Design and construction of a metal matrix composite ultra-lightweight optical system  

NASA Astrophysics Data System (ADS)

Significant reduction in weight of optomechanical systems is possible through the use of three new technologies: metal matrix composite materials, Meinel type telescope structures, and shape optimization of mirror substrates. These technologies are successfully employed in a 400 mm aperture f/1.5 dual channel visible/infrared catadioptric telescope system designed and built at the Optical Science Center, University of Arizona. This system is designed for remote control and is operated in an environment characterized by wide temperature shifts as well as severe mechanical vibration. The telescope is a 400 mm aperture f/5 Ritchey-Chretien, with a 1 degree field of view. A Meinel type telescope structure is employed in combination with a single arch sandwich mirror to reduce telescope weight to about 7 kg. An aluminum reinforced with silicon carbide metal matrix composite is used thorughout the telescope, with a metal matrix composite foam as the shear core of the sandwich primary mirror. The dual channel optical bench employs a high performance focal reducer and is constructed of the same type of metal matrix composite used in the telescope. A passive athermalization scheme provides optical aberration correction over a wide range of temperatures, and is combined with a motorized internal focus to avoid moving the telescope secondary. Design and construction of the telescope was facilitated by a process of interactive optical design, computer aided mechanical layout, and finite element analysis. System performance was successfully simulated prior to final assembly using results from actual optical tests. The final system displayed good performance and represents a successful first use of a number of technologies, including the foam core single arch metal matrix composite primary mirror.

Vukobratovich, Daniel; Valente, Tina M.; Ma, Guo Lin

1995-09-01

481

Design and construction of a guarded hot plate apparatus operating down to liquid nitrogen temperature.  

PubMed

A double-sided guarded hot plate apparatus (GHP) is specifically designed, fabricated, and constructed for the measurement of thermal conductivities of insulation specimens operated down to liquid nitrogen temperature (-196 C), at different controlled pressures from 0.005 Pa to 0.105 MPa. The specimens placed in this apparatus are 300 mm in diameter at various thicknesses ranging from 4 mm to 40 mm. The apparatus is different from traditional GHP in terms of structure, supporting and heating method. The details of the design and construction of the hot plate, the cold plates, the suspensions, the clampings, and the vacuum chamber of the system are presented. The measurement methods of the temperatures, the input power, the meter area, and the thickness of the specimens are given. The apparatus is calibrated with teflon plates as sample and the maximum deviation from the published data is about 6% for thermal conductivity. The uncertainties for the measurement are also discussed in this paper. PMID:22852723

Li, Manfeng; Zhang, Hua; Ju, Yonglin

2012-07-01

482

DisMeta - a Meta Server for Construct Design and Optimization  

PubMed Central

Summary Intrinsically disordered or unstructured regions in proteins are both common and biologically important, particularly in regulation, signaling and modulating intermolecular recognition processes. From a practical point of view, however, such disordered regions often can pose significant challenges for crystallization. Disordered regions are also detrimental to NMR spectral quality, complicating the analysis of resonance assignments and three-dimensional protein structures by NMR methods. The DisMeta Server has been used by Northeastern Structural Genomics Consortium (NESG) as a primary tool for construct design and optimization in preparing samples for both NMR and crystallization studies. It is a meta-server that generates a consensus analysis of eight different sequence-based disorder predictors to identify regions that are likely to be disordered. DisMeta also identifies predicted secretion signal peptides, trans-membrane segments, and low complexity regions. Identification of disordered regions, by either experimental or computational methods, is an important step in the NESG structure production pipeline, allowing the rational design of protein constructs that have improved expression and solubility, improved crystallization, and better quality NMR spectra.

Huang, Yuanpeng Janet; Acton, Thomas B.; Montelione, Gaetano T.

2014-01-01

483

Design, Construction, and Analysis of an Ultra-Low Expansion Quartz Resonant Cavity Passive Ring Resonator Laser Gyroscope.  

National Technical Information Service (NTIS)

The purpose of this research is to design and build a Passive Ring Resonator Laser Gyroscope (PRLG) that is small in size, constructed from a thermally stable material, and utilizes a laser cavity--resonant cavity mode match design. The small size design ...

K. A. Pugh

1982-01-01

484

Construction Planning and Design. Grade 11-12. Course #8146 (Semester). Technology Education Course Guide. Industrial Arts/Technology Education.  

ERIC Educational Resources Information Center

This guide is intended for use in teaching a course in construction planning and design. During the course, students learn how to use the project delivery process to design low-rise buildings and civil projects, simulate working in an architecture/engineering office that is organized into design teams, and use various management tools to monitor

North Carolina State Dept. of Public Instruction, Raleigh. Div. of Vocational Education.

485

Design and construction of a compact microwave proton source for a proton linac  

NASA Astrophysics Data System (ADS)

A 100 MeV, 20 mA proton linear accelerator is being developed by the Proton Engineering Frontier Project at the Korea Atomic Energy Research Institute. 20 MeV acceleration system using radio frequency quadrupole and drift tube linac was already developed and has been tested. To operate this acceleration system with a long time, more reliable proton source is needed. A compact microwave proton source was proposed and has been designed and constructed as a prototype ion source for the 100 MeV proton linear accelerator. The design of microwave power injection system is based on the microwave proton injector at LANL and CEA. The wave power from a 2.45 GHz, 2 kW magnetron source is introduced into a compact plasma chamber with 7 cm diameter and 5 cm length through a standard tapered, double-ridged waveguide (WRD250) and a quartz window. The microwave power supply is installed on high voltage platform. Axial magnetic fields up to 1 kG can be provided with a water-cooled solenoid coil. A single-hole three electrode extraction system is designed for an extraction current up to 30 mA at a 50 kV extraction voltage. The design and initial operations of the proton source are presented.

Hong, I. S.; Park, B. S.; Jang, J. H.; Kwon, H. J.; Cho, Y. S.; Hwang, Y. S.

2010-02-01

486

Design and construction of a compact microwave proton source for a proton linac.  

PubMed

A 100 MeV, 20 mA proton linear accelerator is being developed by the Proton Engineering Frontier Project at the Korea Atomic Energy Research Institute. 20 MeV acceleration system using radio frequency quadrupole and drift tube linac was already developed and has been tested. To operate this acceleration system with a long time, more reliable proton source is needed. A compact microwave proton source was proposed and has been designed and constructed as a prototype ion source for the 100 MeV proton linear accelerator. The design of microwave power injection system is based on the microwave proton injector at LANL and CEA. The wave power from a 2.45 GHz, 2 kW magnetron source is introduced into a compact plasma chamber with 7 cm diameter and 5 cm length through a standard tapered, double-ridged waveguide (WRD250) and a quartz window. The microwave power supply is installed on high voltage platform. Axial magnetic fields up to 1 kG can be provided with a water-cooled solenoid coil. A single-hole three electrode extraction system is designed for an extraction current up to 30 mA at a 50 kV extraction voltage. The design and initial operations of the proton source are presented. PMID:20192335

Hong, I S; Park, B S; Jang, J H; Kwon, H J; Cho, Y S; Hwang, Y S

2010-02-01

487

Design and construction of a compact microwave proton source for a proton linac  

SciTech Connect

A 100 MeV, 20 mA proton linear accelerator is being developed by the Proton Engineering Frontier Project at the Korea Atomic Energy Research Institute. 20 MeV acceleration system using radio frequency quadrupole and drift tube linac was already developed and has been tested. To operate this acceleration system with a long time, more reliable proton source is needed. A compact microwave proton source was proposed and has been designed and constructed as a prototype ion source for the 100 MeV proton linear accelerator. The design of microwave power injection system is based on the microwave proton injector at LANL and CEA. The wave power from a 2.45 GHz, 2 kW magnetron source is introduced into a compact plasma chamber with 7 cm diameter and 5 cm length through a standard tapered, double-ridged waveguide (WRD250) and a quartz window. The microwave power supply is installed on high voltage platform. Axial magnetic fields up to 1 kG can be provided with a water-cooled solenoid coil. A single-hole three electrode extraction system is designed for an extraction current up to 30 mA at a 50 kV extraction voltage. The design and initial operations of the proton source are presented.

Hong, I. S.; Park, B. S.; Jang, J. H.; Kwon, H. J.; Cho, Y. S. [Proton Engineering Frontier Project, Korea Atomic Energy Research Institute, Daejeon 305-353 (Korea, Republic of); Hwang, Y. S. [Department of Nuclear Engineering, Seoul National University, Seoul 151-744 (Korea, Republic of)

2010-02-15

488

Design and Construction of State Highway 157 From State Highway 119, North of the City of Boulder, Colorado.  

National Technical Information Service (NTIS)

The project concerns design and construction of State Highway 157 from State Highway 119 north of the City of Boulder, Colorado to either State Highway 93 or U.S. 36 south of the city. Construction of any of the proposed alignments will affect traffic mov...

1973-01-01

489

NEW HOUSE EVALUATION OF POTENTIAL BUILDING DESIGN AND CONSTRUCTION FOR THE CONTROL OF RADON IN MARION AND ALACHUA COUNTIES, FLORIDA  

EPA Science Inventory

The report gives results of a new house evaluation of potential building design and construction for the control of radon in Marion and Alachua Counties, Florida. During the project, which began in March 1992, the construction of 14 new houses, built in accordance with the Draft ...

490

Design and Construction of the NMSU (New Mexico State University) Geothermally Heated Greenhouse Research Facility: Final Technical Report.  

National Technical Information Service (NTIS)

This report describes the design, construction, and performance of the New Mexico State University (NMSU) Geothermal Greenhouse Research Facility. Two 6000-square-foot greenhouses were built on the NMSU campus and supplied with geothermal energy for heati...

R. Schoenmackers

1988-01-01

491

Design and Construction of Residential Slabs-on-Ground: State of the Art. Volume II: Literature Survey.  

National Technical Information Service (NTIS)

The literature survey concerning design and construction of residential slabs - on - ground on which this annotated bibliography is based was conducted by searching three separate data files in two data banks: the National Technical Information Service Fi...

1979-01-01

492

Design, construction and Programming of a Microcontroller-Based Testbench Suitable for Radiation Testing of Microelectronic Circuits.  

National Technical Information Service (NTIS)

This thesis describes the design, construction, and programming of a microcontroller- based testbench suitable for radiation testing microelectronic integrated circuits. It will be used to test circuits fabricated using the Low Temperature Gallium Arsenid...

J. A. Thompson

1997-01-01

493

Specifically Designed Constructed Wetlands: A Novel Treatment Approach for Scrubber Wastewater. (Final report, September 1, 2004-September 1, 2005).  

National Technical Information Service (NTIS)

A pilot-scale wetland treatment system was specifically designed and constructed at Clemson University to evaluate removal of mercury, selenium, and other constituents from flue gas desulfurization (FGD) wastewater. Specific objectives of this research we...

J. H. Rodgers J. W. Castle C. Arrington D. Eggert M. Iannacone

2005-01-01

494

Implementation of Sustainable and Green Design and Construction Practices for Bridges. Final Report 10/1/2010-9/30/2012.  

National Technical Information Service (NTIS)

The focus of this research is to develop a framework for more sustainable design and construction processes for new bridges, and sustainable maintenance practices for existing bridges. The framework includes a green rating system for bridges. The green ra...

2012-01-01

495

Constructal law: Pleasure, golden ratio, animal locomotion and the design of pedestrian evacuation. Comment on The emergence of design in pedestrian dynamics: Locomotion, self-organization, walking paths and the constructal law by A. Miguel  

NASA Astrophysics Data System (ADS)

Pedestrian flow belongs to the design of animal movement, covered by the constructal law of design (animate, inanimate) in nature. Walking and running, like water waves, are forms of falling-forward movement, with speeds in accord with the constructal law. Travel on an area is a balanced combination of long and fast and short and slow. Bodies moving on an area are a balanced combination of few large and many small. Comfort, beauty (golden ratio) and pleasure guide human movement to greater access, in accord with the constructal law.

Bejan, Adrian

2013-06-01

496

Detailed design and construction of the hull of a floating, production, storage and off-loading (FPSO) unit  

Microsoft Academic Search

This study presents the ways and means of detailed design and construction of an on-going 2,000,000 BBLS floating, production, storage and off-loading (FPSO) unit installed in the near offshore area of Nigeria. First, we explain the overall procedure of a hull of FPSO unit from detailed design to construction and lessons learned from the hull of FPSO, contributing to successful

John-Kyu Hwang; Myung-Il Roh; Kyu-Yeul Lee

2010-01-01

497

Department of the Air Force Justification of Estimates for Fiscal Years 1990/1991 Biennial Budget Estimates Submitted to Congress January 1989. Missile Procurement, Air Force.  

National Technical Information Service (NTIS)

This document contains statistical data pertaining to construction, procurement, and modification of missiles, spacecraft, rockets, and related equipment, including spare parts and accessories therefore, ground handling equipment, and training devices; ex...

1989-01-01

498

Tissue microarray design and construction for scientific, industrial and diagnostic use  

PubMed Central

Context: In 2013 the high throughput technology known as Tissue Micro Array (TMA) will be fifteen years old. Its elements (design, construction and analysis) are intuitive and the core histopathology technique is unsophisticated, which may be a reason why has eluded a rigorous scientific scrutiny. The source of errors, particularly in specimen identification and how to control for it is unreported. Formal validation of the accuracy of segmenting (also known as de-arraying) hundreds of samples, pairing with the sample data is lacking. Aims: We wanted to address these issues in order to bring the technique to recognized standards of quality in TMA use for research, diagnostics and industrial purposes. Results: We systematically addressed the sources of error and used barcode-driven data input throughout the whole process including matching the design with a TMA virtual image and segmenting that image back to individual cases, together with the associated data. In addition we demonstrate on mathematical grounds that a TMA design, when superimposed onto the corresponding whole slide image, validates on each and every sample the correspondence between the image and patient's data. Conclusions: High throughput use of the TMA technology is a safe and efficient method for research, diagnosis and industrial use if all sources of errors are identified and addressed.

Pilla, Daniela; Bosisio, Francesca M.; Marotta, Roberto; Faggi, Stefano; Forlani, Paolo; Falavigna, Maurizio; Biunno, Ida; Martella, Emanuele; De Blasio, Pasquale; Borghesi, Simone; Cattoretti, Giorgio

2012-01-01

499

Design and Construction of a Versatile Dual Volume Heteronuclear Double Resonance Microcoil NMR Probe  

PubMed Central

Improved NMR detection of mass limited samples can be obtained by taking advantage of the mass sensitivity of microcoil NMR, while throughput issues can be addressed using multiple, parallel sample detection coils. We present the design and construction of a double resonance 300-MHz dual volume microcoil NMR probe with thermally-etched 440-nL detection volumes and fused silica transfer lines for high-throughput stopped-flow or flow-through sample analysis. Two orthogonal solenoidal detection coils and the novel use of shielded inductors allowed the construction of a probe with negligible radio-frequency cross talk. The probe was resonated at 1H2D (upper coil) and 1H13C (lower coil) frequencies such that it could perform 1D and 2D experiments with active locking frequency. The coils exhibited line widths of 0.8 to 1.1 Hz with good mass sensitivity for both 1H and 13C NMR detection. 13C directly detected 2D HETCOR spectra of 5% v/v 13C labeled acetic acid were obtained in less than 5 min. Demonstration of the probe characteristics as well as applications of the versatile two-coil double resonance probe are discussed.

Kc, Ravi; Henry, Ian D.; Park, Gregory H. J.; Raftery, Daniel

2009-01-01

500

22 CFR 201.22 - Procurement under public sector procedures.  

Code of Federal Regulations, 2013 CFR

... Procurement under public sector procedures. 201.22 Section 201.22...INTERNATIONAL DEVELOPMENT RULES AND PROCEDURES APPLICABLE TO COMMODITY TRANSACTIONS FINANCED BY USAID Procurement Procedures; Responsibilities of Importers...

2013-04-01