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Journal/Periodical
electronic text, v. : HTML, digital, PDF file.
Database topics
Economics and Business; Environmental Studies; Biology
"The Sustainability database explores the management of human use and conservation of the natural resource base, ensuring the attainment and continued satisfaction of human needs in the present as well as maintaining the potential to meet the needs and aspirations of future generations. This involves the maintenance of species diversity & genetic diversity within the species and protection of the habitat/ecosystem they rely upon. The economy is an important aspect of Sustainability and should be seen as "a means to an end" not an end in itself. Coverage includes relevant papers, reports, books and reviews from standard peer-reviewed scientific journals. To ensure comprehensive coverage, material from conference proceedings and hard-to-find gray literature has also been summarized"--CSA Sustainability Science Abstracts factsheet.
Book
iii, 45 p. ; cm.
Considers S. 2127, to provide free life insurance for members of the armed forces serving in combat zones.
Considers (89) S. 2127, (89) S. 2158.

5. Environment [1969 - ]

Journal/Periodical
v. ill. 28 cm.
Green Library, Engineering Library (Terman), SAL1&2 (on-campus shelving), SAL3 (off-campus storage)
Book
1 online resource.
Electromagnetic (E.M.) energy injection method and apparatus for producing and sustaining suprathermal ordered ions in a neutral, two-ion-species, toroidal, bulk equilibrium plasma. More particularly, the ions are produced and sustained in an ordered suprathermal state of existence above the average energy and velocity of the bulk equilibrium plasma by resonant rf energy injection in resonance with the natural frequency of one of the ion species. In one embodiment, the electromagnetic energy is injected to clamp the energy and velocity of one of the ion species so that the ion energy is increased, sustained, prolonged and continued in a suprathermal ordered state of existence containing appreciable stored energy that counteracts the slowing down effects of the bulk equilibrium plasma drag. Thus, selective deuteron absorption may be used for ion-tail creation by radio-frequency excitation alone. Also, the rf can be used to increase the fusion output of a two-component neutral injected plasma by selective heating of the injected deuterons.
Book
1 online resource ([3] volumes) : illustrations.
  • v. 1. Human performance guidelines
  • v. 2. Management guide
  • v. 3. Technical documentation.
Book
1 online resource.
A low voltage, electrically actuated, nonprimary explosive detonator is disclosed wherein said detonation is achieved by means of an explosive train in which a deflagration-to-detonation transition is made to occur. The explosive train is confined within a cylindrical body and positioned adjacent to low voltage ignition means have electrical leads extending outwardly from the cylindrical confining body. Application of a low voltage current to the electrical leads ignites a self-sustained deflagration in a donor portion of the explosive train which then is made to undergo a transition to detonation further down the train.
Book
1 online resource (viii, 242 pages) : illustrations.
  • Front Cover; Recent Advances in Animal Nutrition-1983; Copyright Page; PREFACE; Table of Contents; Part I: Evaluation of Nutritional Data; CHAPTER 1. THE NUMBER OF REPLICATES AND OTHER CONSIDERATIONS IN THE DESIGN OF FIELD TRIALS; Introduction; Control; Replication; Randomization; Number of replicates; Magnitude of experimental errors; Number of animals per experimental unit; Number of pens per house; Conclusions; References; CHAPTER 2. THE INTERPRETATION OF RESPONSE DATA FROM ANIMAL FEEDING TRIALS; Duncan's multiple range test; The bent stick; The parabola
  • The hyperbola (exponential and inverse polynomial models)The Reading model; Conclusions; References; CHAPTER 3. ERRORS IN MEASUREMENT AND THEIR IMPORTANCE IN ANIMAL NUTRITION; References; Part II: Pig Nutrition; CHAPTER 4. CEREAL REPLACERS AS ALTERNATIVE SOURCES OF ENERGY FOR PIGS; Cereal replacers in Northern Ireland; Cassava; Molasses; Silage effluent; Comparison of control diet with manufactured compounds; Conclusions; References; CHAPTER 5. PREDICTING THE ENERGY CONTENT OF PIG FEEDS; Predictors; Prediction of individual feedingstuffs; Prediction of mixed diets; References
  • CHAPTER 6. THE USE OF FAT IN SOW DIETSWhy is piglet mortality so high and what changes occur?; Does added fat improve piglet survival?; What factors are important?; Is adding fat economically advantageous?; Conclusion; References; CHAPTER 7. VITAMIN RESPONSIVE CONDITIONS IN BREEDING PIGS; Introduction; A model for the derivation of vitamin allowances; Vitamin requirements of breeding female pigs; Vitamin responses in breeding pigs; The response of the breeding female to additional biotin; Selection of parameters for measurement of a vitamin response; Possibility of responses to other vitamins
  • ConclusionsReferences; Part Ill: Calf Nutrition; CHAPTER 8. SYSTEMS OF CALF REARING; References; CHAPTER 9. MILK REPLACERS FOR CALVES; The digestive system of the newborn calf; Clotting and the digestion of milk; Nutrient requirements of the neonatal calf; Specification of a milk replacer diet; Alternatives to skim milk; Choice of ingredients in formulating a milk replacer; Acidified milk replacers; Conclusion; References; Part IV: Ruminant Nutrition; CHAPTER 10. NUTRIENT REQUIREMENT OF THE BREEDING EWE; Introduction; Targets for body condition; Nutrient requirement for early pregnancy
  • Nutrient requirement in mid pregnancyNutrient requirement in late pregnancy; Lactation; References; CHAPTER 11. GROWTH PROMOTERS AND THEIR IMPORTANCE IN RUMINANT LIVESTOCK PRODUCTION; Introduction; Efficiency of digestion in the rumen; The efficacy of antimicrobial feed additives with particular reference to beef production; Mode of action of growth promoting feed additives in ruminants; Conclusions; References; CHAPTER 12. SOME NUTRITIONAL ASPECTS OF HIGH YIELDING DAIRY HERDS; Introduction; 3000 Gallon Club high yield survey (HY survey); Nutrient requirements; Conclusions; Acknowledgements
Recent Advances in Animal Nutrition-1983 is a collection of papers that tackles the nutritional concerns of raising livestock. The text presents 14 studies that are organized into four parts. The first part covers the evaluation of nutritional data. This part discusses the interpretation of response data from animal feeding trials and errors in measurement and their importance in animal nutrition. Next, the book deals with topics relevant to pig nutrition, such as predicting the energy content of pig feeds and the use of fat in sow diets. Part III discusses the systems of calf rearing and milk.
Book
1 online resource.
An induction plasma tube having a segmented, fluid-cooled internal radiation shield is disclosed. The individual segments are thick in cross-section such that the shield occupies a substantial fraction of the internal volume of the plasma enclosure, resulting in improved performance and higher sustainable plasma temperatures. The individual segments of the shield are preferably cooled by means of a counterflow fluid cooling system wherein each segment includes a central bore and a fluid supply tube extending into the bore. The counterflow cooling system results in improved cooling of the individual segments and also permits use of relatively larger shield segments which permit improved electromagnetic coupling between the induction coil and a plasma located inside the shield. Four embodiments of the invention, each having particular advantages, are disclosed.
Book
1 online resource.
A method and apparatus for generating a measurable natural crack includes forming a primary notch in the surface of a solid material. A non-sustained single pressure pulse is then generated in the vicinity of the primary notch, resulting in the formation of a shock wave which travels through the material. The shock wave creates a measurable natural crack within the material which extends from the primary notch. The natural crack formed possesses predictable geometry, location and orientation.
Book
1 online resource.
This invention relates to a new method and new apparatus for determining fluid mass flowrate and density. In one aspect of the invention, the fluid is passed through a straight cantilevered tube in which transient oscillation has been induced, thus generating Coriolis damping forces on the tube. The decay rate and frequency of the resulting damped oscillation are measured, and the fluid mass flowrate and density are determined therefrom. In another aspect of the invention, the fluid is passed through the cantilevered tube while an electrically powered device imparts steady-state harmonic excitation to the tube. This generates Coriolis tube-damping forces which are dependent on the mass flowrate of the fluid. Means are provided to respond to incipient flow-induced changes in the amplitude of vibration by changing the power input to the excitation device as required to sustain the original amplitude of vibration. The fluid mass flowrate and density are determined from the required change in power input. The invention provides stable, rapid, and accurate measurements. It does not require bending of the fluid flow.
Book
1 online resource.
Refractory metal nitrides are synthesized during a self-propagating combustion process utilizing a solid source of nitrogren. For this purpose, a metal azide is employed, preferably NaN.sub.3. The azide is combusted with Mg or Ca, and a metal oxide is selected from Groups III-A, IV-A, III-B, IV-B, or a rare earth metal oxide. The mixture of azide, Ca or Mg and metal oxide is heated to the mixture's ignition temperature. At that temperature the mixture is ignited and undergoes self-sustaining combustion until the starter materials are exhausted, producing the metal nitride.
Book
1 online resource.
A wire chamber radiation detector (11) has spaced apart parallel electrodes (16) and grids (17, 18, 19) defining an ignition region (21) in which charged particles (12) or other ionizing radiations initiate brief localized avalanche discharges (93) and defining an adjacent memory region (22) in which sustained glow discharges (94) are initiated by the primary discharges (93). Conductors (29, 32) of the grids (18, 19) at each side of the memory section (22) extend in orthogonal directions enabling readout of the X-Y coordinates of locations at which charged particles (12) were detected by sequentially transmitting pulses to the conductors (29) of one grid (18) while detecting transmissions of the pulses to the orthogonal conductors (36) of the other grid (19) through glow discharges (94). One of the grids (19) bounding the memory region (22) is defined by an array of conductive elements (32) each of which is connected to the associated readout conductor (36) through a separate resistance (37). The wire chamber (11) avoids ambiguities and imprecisions in the readout of coordinates when large numbers of simultaneous or near simultaneous charged particles (12) have been detected. Down time between detection periods and the generation of radio frequency noise are also reduced.
Book
1 online resource.
Acoustic energy is propagated through earth material between an electro-acoustic generator and a receiver which converts the received acoustic energy into electrical signals. A closed loop is formed by a variable gain amplifier system connected between the receiver and the generator. The gain of the amplifier system is increased until sustained oscillations are produced in the closed loop. The frequency of the oscillations is measured as an indication of the acoustic propagation velocity through the earth material. The amplifier gain is measured as an indication of the acoustic attenuation through the earth materials. The method is also applicable to the non-destructive testing of structural materials, such as steel, aluminum and concrete.

18. Gatekeeper series [1987 - ]

Book
v. ; 30 cm.

19. Gatekeeper series [1987 - ]

Book
v. ; 30 cm.
Book
1 online resource.
An apparatus useful in the prediction of the damage threshold of various optical devices, the location of weak spots on such devices and the location, identification, and elimination of optical surface impurities comprising, a focused and pulsed laser, an photo electric detector/imaging means, and a timer. The weak spots emit photoelectrons when subjected to laser intensities that are less than the intensity actually required to produce the damage. The weak spots may be eliminated by sustained exposure to the laser beam.

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