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Topic: Yield (engineering)

    Note: these results are not from the primary (high quality) database.

Checkbiotech.org For example, it is estimated that approximately 90% of the United States land surface is exposed to various abiotic stresses and that the resulting yield losses of major crops amount to 50—80% of the maximum genetic potential yield(1). In this respect, transcription factors regulating stress-responsive gene expression are excellent targets of genetic engineering. The efficacy of "regulon engineering" in enhancing freezing and drought tolerance has been demonstrated for transcription factors of the ABA-independent stress-responsive genes(7,8). www.checkbiotech.org /root/index.cfm?fuseaction=news&doc_id=9207&start=1&control=221&page_start=1&page_nr=101&pg=1

Checkbiotech.org For example, it is estimated that approximately 90% of the United States land surface is exposed to various abiotic stresses and that the resulting yield losses of major crops amount to 50—80% of the maximum genetic potential yield(1). Enhancing stress tolerance by regulon engineering of aba-responsive genes The efficacy of "regulon engineering" in enhancing freezing and drought tolerance has been demonstrated for transcription factors of the ABA-independent stress-responsive genes(7,8). www.checkbiotech.org /root/index.cfm?fuseaction=news&doc_id=9207&start=1&control=221&page_start=1&page_nr=101&pg=1   (1403 words)

Yield - Psychology Central Yield (engineering), the permanent plastic deformation of a structure Yield strength, an engineering term for the strain that a material can undergo before plastic deformation Terminal yield, in formal language theory is the sequence of leaves encountered in an ordered walk of a tree structure psychcentral.com /psypsych/Yield   (287 words)

Yield strength - Wikipedia, the free encyclopedia Yield strength, or the yield point, is defined in engineering as the amount of strain that a material can undergo before moving from elastic deformation into plastic deformation. The yield point is often defined, due to the lack of a clear border between the elastic and plastic regions, by a 0.2% offset from the linear region. The point where this offset line intersects the stress-strain curve is the yield point. en.wikipedia.org /wiki/Yield_strength   (148 words)

Engineering Stress-strain Curve The yield strength obtained by an offset method is commonly used for design and specification purposes because it avoids the practical difficulties of measuring the elastic limit or proportional limit. The usual definition of this property is the offset yield strength determined by the stress corresponding to the intersection of the stress-strain curve and a line parallel to the elastic part of the curve offset by a specified strain (Fig. However, because of the long practice of using the tensile strength to determine the strength of materials, it has become a very familiar property, and as such it is a very useful identification of a material in the same sense that the chemical composition serves to identify a metal or alloy. www.keytosteel.com /Articles/Art43.htm   (1876 words)

What Is A Wiki - WikkiTikkiTavi Wikis yield the most fruit when they have a specific purpose and are maintained by interested parties in the purpose. Most decisions and actions are taken within the wiki, where no one has special power (outside the wiki, some people have a password or physical access to a machine, until someone develops RobustWiki). Surprisingly, there were few problems with people abusing wiki, but more often these days people are password protecting ones directly on the Internet due to spammers trying to up their pageranks in search engines. tavi.sourceforge.net /WhatIsAWiki   (283 words)

Finite Element Analysis of Structures Anybody with a degree in electrical engineering or experience in computer programming is propped up in the lounge for a few days just to see if he or she snaps out of it. The third Figure is the effective stress levels in the jacket gilding metal at 307,500 rpm and it shows that most of the cylindrical section of the bullet is stressed above the 15 KSI yield stress. Note that the high stressed region of the bolt is in compression and occurs at the area of contact with the action. www.varmintal.com /aengr.htm   (283 words)

UPGRADE: Vol. V, Issue no. 2, April 2004 (UML and Model Engineering) Model Engineering is an area which is becoming increasingly more important both in academia and industry; there are already a great many software development environments which incorporate model transformation tools. The increasing importance of model engineering has prompted research into such areas as model quality and evaluation, profile definition, formal transformation approaches, and the development of transformation tools. The language should also yield models that are readable both by persons (the main users) and by computers (to allow automatic code generation). www.upgrade-cepis.org /issues/2004/2/upgrade-vol-V-2.html   (283 words)

memetic engineering This tedium, when accurately charted, will yield to us a map of memetic control and countermemetic opportunity; for every meme, there is a countermeme. If what we have to do is engineer a new paradigm, we must use the uniformity of the society that capitalism has created to our advantage, else it will smother us prematurely. As the absurdity of this causal connection dawns on the population - an easy task for radicals to achieve by memetic means - perhaps the entire paradigm used by capitalism and the State will collapse. www.unamerican.com /ideas/memes.htm   (1222 words)

Mechanical Engineering Department Mechanical engineers possess a firm understanding of science, mathematics and engineering needed to carry out these complex tasks which are so important to a modern technological society. Mechanical engineers are employed in a wide range of industries such as manufacturing, transportation, energy, food, and biomedical application. Ordinary and partial differential equations with constant and variable coefficients; orthogonal functions; conformal mapping; potential theory; engineering applications. www.fullerton.edu /catalog/academic_departments/egme.asp   (3933 words)

Utilco - Reference: Engineering Handbook for Electrical Connectors For the aluminum alloys the yield strength in tension and compression are approximately the same. Adequate strength of the connector to prevent creep loss in the connection from exceeding the creep loss of the conductor. The maximum tensile load which a material is capable of withstanding under gradually and uniformly applied loading, divided by the original cross-sectional area in the minimum plane perpendicular to the direction of loading. www.ilsco.com /newweb/IlscoHome.nsf/Utilco/Engineering+Handbook   (1922 words)

Stainless Steel - Mechanical Properties As engineering design calculations are frequently made on yield criterion the low yield strength of austenitic stainless steels may well mean that their design load cannot be higher than that of mild steel, despite the tensile strength being substantially higher. Weaving wires are supplied in a variety of tensile strengths carefully chosen so that the finished woven screen will have adequate strength to withstand the service loads, and yet soft enough to be crimped and to be formed into the screen satisfactorily. Spring wire has the highest tensile strength of the wire generally manufactured; it must be suitable for coiling into tension or compression springs without breaking during forming. www.azom.com /details.asp?ArticleID=1181   (817 words)

PRCI - L51738 Weld Metal Yield Strength Testing of Girth Welds Weld metal yield strength is also a key element in girth weld defect engineering critical assessments. The development of a reliable test procedure for determining the actual transverse weld metal yield strength in both under-matching and overmatching welds is therefore needed. Result: The objective of the present investigation was to develop a testing procedure which could be used to measure the weld metal yield strength in the transverse direction and which would have technical advantages over any commonly used test for measuring weld metal yield strength. www.prci.com /publications/L51738.htm   (306 words)

Yield Strength and Solution Composition Effects on Aqueous Environmental Cracking of Ti-8V-6Cr-4Zr-4Mo-3Al (Beta C) - Storming Media Yield Strength and Solution Composition Effects on Aqueous Environmental Cracking of Ti-8V-6Cr-4Zr-4Mo-3Al (Beta C) Authors: Brian P. Somerday; Jennifer A. Grandle; Richard P. Gangloff; VIRGINIA UNIV CHARLOTTESVILLE DEPT OF MATERIALS SCIENCE AND ENGINEERING Yield Strength and Solution Composition Effects on Aqueous Environmental Cracking of Ti-8V-6Cr-4Zr-4Mo-3Al (Beta C) - Storming Media Lower strength solution treated Beta C resists EAC in both pure NaCl and acidic sulfur-species-bearing chloride solutions, where fracture is by transgranular microvoid formation. www.stormingmedia.us /27/2701/A270133.html   (221 words)

Barbara J.W. Cole The wood chemistry program at UMaine provides undergraduate and graduate students with a unique opportunity to study in a multidisciplinary field, which involves organic and medicinal chemistry, forestry, pulp and paper technology, chemical and environmental engineering, biochemistry, and microbiology. Wood chemistry is a broad, interdisciplinary field focusing on the chemical and biochemical aspects of trees and products such as pulp and paper that are derived from trees. The wood chemistry program is the only such program in a chemistry department in the United States. chemistry.umeche.maine.edu /cole.html   (934 words)

BioMatNet Item: AIR1-CT92-0205 - Engineering Stress Tolerance in Maize (ESTIM) The damage caused by low-temperature stress occurs primarly in the chloroplasts, leading to an early inhibition of photosynthesis, photobleaching of pigments, and considerable losses in quality and yield. Since maize originates from tropical regions it is particularly sensitive to low-temperature stress, explaining why stress tolerance has become a major selection criteria in maize breeding programmes. Finally transgenic lines with a higher tolerance to low-temperature stress will be evaluated in field conditions. www.biomatnet.org /secure/Air/S296.htm   (408 words)

BioMatNet Item: AIR1-CT92-0205 - Engineering Stress Tolerance in Maize (ESTIM) The damage caused by low-temperature stress occurs primarly in the chloroplasts, leading to an early inhibition of photosynthesis, photobleaching of pigments, and considerable losses in quality and yield. Since maize originates from tropical regions it is particularly sensitive to low-temperature stress, explaining why stress tolerance has become a major selection criteria in maize breeding programmes. To this end, transgenic maize plants will be generated which over express in the chloroplasts both a superoxide dismutase and an enzyme implicated in hydrogen peroxide scavenging (ascorbate peroxidase, glutathione peroxidase, catalase, glutathione reductase, or glutathione synthetase). www.biomatnet.org /secure/Air/S296.htm   (408 words)

SRI International - Product Engineering and Production Our regulatory and technical staff works with clients to develop comprehensive device development plans with engineering milestones and timeline management. Develop advanced manufacturing processes that can reduce cost, improve yield and make a new product possible Our diverse group of engineers has an unmatched capability for developing innovative solutions and enabling technologies to support a wide range of new concepts, from high-volume shrink—wrap consumer and medical products to complex, custom, industrial processes. www.sri.com /esd/pep.html   (279 words)

Complete Optical Solutions Design, develop and implement solutions to optical engineering challenges faced by client organizations. Designed optics for high-bandwidth, 10 Gbps, NIR laser-based optical communication links, FSO (free space optics) lens systems for both transmitter and receiver optics, improving range, beam uniformity and manufacturability. Piloted diffractive optical elements into volume manufacturing (10,000 units per year). www.completeoptical.com   (1343 words)

Human Systems: Metabolic Engineering This program targets fundamental understanding of metabolic processes in unicellular marine organisms that yield new processes, novel materials or unique capabilities. The exploitation of cells for their novel or unique metabolic features is a keystone for biotechnology. This program area supports this approach with particular emphasis on the fundamental research needed for the development of non-invasive technologies (particularly post-transcriptional) for following and/or reporting metabolic transformations and process control in marine organisms. www.onr.navy.mil /sci_tech/personnel/341/bbb_metabolic.asp   (1343 words)

CERA Journal Special Issue: A Complex Systems Perspective on Concurrent Engineering describe how we can use complex systems models to help understand and improve the emergent dynamics of concurrent engineering processes. This is due to the increased complexity of engineering products and processes, on one hand, and the lack of corresponding CE models and tools, on the other hand. Concurrent Engineering and Design Oscillations in Complex Engineering Projects necsi.org /postdocs/sayama/ceraj2.html   (1343 words)

Advanced Materials Engineering Junjie Wu and Paul Buckley, in collaboration with former colleague Professor John O'Connor (former Director, Oxford Orthopaedic Engineering Centre), have identified the origin of fusion defects in UHMWPE and developed a means of computer-aided process design to minimise the problem at the manufacturing stage. At Oxford we have made a detailed study of the effects of varying molecular length and orientation on the yield, plastic flow and crazing of a glassy polymer — polystyrene near its glass transition temperature (ca 100C). The goal is to enable molecular tailoring of these materials, to optimise their performance in a variety of practical situations. www.eng.ox.ac.uk /World/Research/Summary/B-Materials.html   (1731 words)

Construction of lycopene-overproducing E. coli strains by combining systematic and combinatorial gene knockout targets - Nature Biotechnology Identification of genes that affect the product accumulation phenotype of recombinant strains is an important problem in industrial strain construction and a central tenet of metabolic engineering. Exhaustive exploration of all possible combinations of the above gene sets yielded a unique set of 64 knockout strains spanning the metabolic landscape of systematic and combinatorial gene knockout targets. We show that these two search strategies yield two distinct gene sets, which affect product synthesis either through an increase in precursor availability or through (largely unknown) kinetic or regulatory mechanisms, respectively. www.nature.com /doifinder/10.1038/nbt1083   (1731 words)

The Traffic Group Inc.-Derek B. Joost, PE, PTOE As a traffic engineer, he conducted numerous traffic impact studies and conducted research into the state of the art and practices of textured shoulders, the state of the art and practice of Arrow Panel usage, and assisted in developing guidelines for converting STOP to YIELD control at intersections. Joost served as a civil engineer and traffic engineering consultant with private engineering firms. Joost has over 20 years experience in transportation planning, traffic engineering, highway design, research and construction. www.trafficgroup.com /about/resume/resdj.html   (1731 words)

Software Engineering Tools: Compatibility and Integration We outline both the mathematical and engineering challenges in building inference modules that can be composed to yield effective deductive tools. The TMO (Time-triggered Message-triggered Object) programming and specification scheme is intended to facilitate RT distributed programming and software engineering in a form which software engineers in the vast business software field can adapt to with relatively small efforts. In the bottom-up white box approach to integration, modules of existing (or proposed) tools are generalized and made into robust reusable components. www-step.stanford.edu /Vienna/abstracts.html   (4857 words)

Correlation of the scope of sub- \mathbfT_g molecular motion with the ductility of polymers based on SBI The results suggest that in order for the polymers to yield, cooperative motion involving at least a couple of structural units may be necessary. Main chain sub- \mathrmT_g molecular motion is strongly correlated with the toughness of polymeric materials. Correlation of the scope of sub- \mathbfT_g molecular motion with the ductility of polymers based on SBI flux.aps.org /meetings/YR99/CENT99/abs/S5087194.html   (227 words)

Reason It should be noted that a 1995 study of the Department of Defense's STAR GATE remote viewing program done by the American Institutes for Research concluded: "[T]he information provided by remote viewing is vague and ambiguous, making it difficult, if not impossible, for the technique to yield information of sufficient quality and accuracy...for actionable intelligence. Research into paranormal phenomena is still ongoing at places like Princeton University and the University of Edinburgh, as well as various institutes like the Rhine Research Institute in Durham, North Carolina. Most studies of paranormal effects, then, find that they are not very robust; research results are often on the knife-edge of statistical significance, and can appear and disappear capriciously. www.reason.com /rb/rb031704.shtml   (852 words)

NOAA History - Profiles in Time/Giants of Science/Cleveland Abbe The following year, 1859, he was an assistant professor of Engineering in the Michigan Agricultural college; and later, 1859-‘60, tutor in Engineering at the University of Michigan, where he found in Professor Brunnow an inspiring instructor in Astronomy, the Science whose marvelous revelations had, above all others, aroused and directed his youth ful aspirations. A final report is to be ready by the first of next month.’ Unfortunately Nature does not yield her secrets in response to orders, and there were naturally many failures to ‘get results’ on time. He had a singularly full and complete knowledge of the state of the science of meteorology in all parts of the world, and was continually suggesting problems that he thought demanded attention. www.history.noaa.gov /giants/abbe.html   (5901 words)

An Investigation of the Electrical Conductivity in Highly Oriented Graphite Intercalation Compounds - Storming Media SbF5, which acts as an acceptor in graphite intercalation compounds has been observed to yield compounds having a axis conductivity comparable to that of copper. Abstract: It was the possibility of making a lightweight, practical conductor of electricity that led to the research reported here. An Investigation of the Electrical Conductivity in Highly Oriented Graphite Intercalation Compounds www.stormingmedia.us /93/9356/A935641.html   (5901 words)

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