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Het Utrechts Archief catalog number: 822562 Description (Dutch): Gezicht op de Brink te Werkhoven (gemeente Bunnik) met rechts de dorpspomp.
Topics: Boom, Eigendom, Stad
Glycidyl azide polymer (GAP) is under investigation as an energetic binder for several military applications. Hydroxy terminated GAP, where two, three, or four end groups per molecule are present has been studied for use in urethane cured formulations. A key to understanding the cure behavior in these systems is an accurate measure of hydroxy equivalent weight. NMR investigations of equivalent weights have been undertaken in our laboratory and we will briefly describe the results for several...
Topics: DTIC Archive, Nissan, R A, NAVAL AIR WARFARE CENTER WEAPONS DIV CHINA LAKE CA, *POLYMERS,...
International Journal of Intercultural Relations : IJIR Fall 1993: Volume 17 , Issue 4. Digitized from IA1646517-07 . Previous issue: sim_international-journal-of-intercultural-relations-ijir_summer-1993_17_3_0 . Next issue: sim_international-journal-of-intercultural-relations-ijir_1994_18_index_0 .
Topics: Sociology, Scholarly Journals, microfilm
Source: IA1646517-07
The Banner of Truth 1993-09: Volume 59 , Issue 9. Digitized from IA1586920-03 . Previous issue: sim_banner-of-truth_1993-08_59_8 . Next issue: sim_banner-of-truth_1993-10_59_10 .
Topics: Philosophy & Religion, Magazines, microfilm
Source: IA1586920-03
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Inside Sports 1993-09: Volume 15 , Issue 9. Digitized from IA1631415-06 . Previous issue: sim_inside-sports_1993-08_15 . Next issue: sim_inside-sports_1993-10_15_10 .
Topics: General Interest, Magazines, microfilm
Source: IA1631415-06
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Het Utrechts Archief catalog number: 822563 Description (Dutch): Afbeelding van enkele wandelaars, waarschijnlijk op de Achterdijk bij Werkhoven (gemeente Bunnik).
Topics: Boom, Natuurlijk landschap, Natuur
A tunable erbium doped fiber ring laser, pumped with a 980 nm diode laser was constructed. Output power as a function of pump power and output wavelength for a given fiber length was measured. Spectral and temporal analysis of the signal showed mode-locked pulses of short duration and broad frequency content, as well as a CW component confined to a relatively narrow optical frequency range. The mechanisms for this type of mode-locking are discussed as well as the limitations placed on the...
Topics: DTIC Archive, Teegarden, Kenneth J, KJT INC ROCHESTER NY, *OSCILLATORS, *RING LASERS, *LASER...
The U.S. Navy and U.S. Army together own over 5700 miles of railroad track that are vital to the mobilization and operational needs of the Department of Defense. Civilian local railroad companies control another 19,000 miles. Track managers need a method to assess current track conditions, predict future track conditions, establish track deterioration rates, formulate budgets, and determine and prioritize renewal projects. In response to this need, the U.S. Army Construction Engineering...
Topics: DTIC Archive, Uzarski, D R, CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL, *RAILROAD...
A readiness-based sparing (RBS) model for the repair and replenishment of repairable items is needed by the Navy which considers the aggregate inventory of repaired units and new ones. This thesis presents progress in the development of such a model. In contrast to other such current repairables models in the literature, it also allows for both batch repair and procurement. A theoretical model had been developed earlier at the Naval Postgraduate School for the probability distribution of...
Topics: DTIC Archive, Maher, Kevin J, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *REPAIR, *INVENTORY,...
The source selection process within the Department of Defense is one of the most time consuming activities for acquisition personnel. A source selection team typically consists of a technical team, management team and cost team. Team members are tasked with evaluating the competing contractor's proposals in their area of expertise (i.e. technical, management or cost). Currently the evaluation method for competitions is to select one contractor for award on the basis of which proposal represents...
Topics: DTIC Archive, Hibbard, Carol, NAVAL AIR SYSTEMS COMMAND ARLINGTON VA, *SELECTION, *CONTRACT...
We have written DosFs, a new file system for UNIX that uses MS-DOS data structures for permanent storage. DosFs can be used anywhere a traditional UNIX file system can be used, and it can mount disks written by MS-DOS as regular UNIX partitions. DosFs can be used as the root partition, and exported by an NFS server. Our motivation for this work was efficient disk space utilization; DosFs provides from 10% to 13% better disk utilization than the 4.3 BSD Fast File System (FFS). In addition, we...
Topics: DTIC Archive, Forin, Alessandro, CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF COMPUTER SCIENCE,...
This thesis presents a new technique for loop pipelining of perfectly-nested for-loop structures which is designed to optimize loop execution on VLIW machines. Previously implemented loop pipelining techniques provide limited performance because they explicitly include the constraints imposed by a loop's cyclic dependences in their loop pipelining process. Some loop pipelining techniques have also ignored the realistic constraint of finite resource availability in the creation of final...
Topics: Loop pipelining, Inter-iteration initiative interval, Modulo scheduling, Data dependence graph,...
Power loss in spacecraft solar cells due to radiation damage was investigated. The mechanisms behind the degradation and based on deep-level defects in the crystalline lattice structure of the solar cell. Through a process known as Deep Transient Spectroscopy (DLTS), a correlation can be made between damage/recovery and trap energy of the cell. Gallium (GaAs/Ge) and Indium Phosphide (InP) solar cells were subjected to 1 MeV electron irradiation, to fluences of 1E16 electrons/sq cm. Attempts at...
Topics: Radiation damage in solar cells, DLTS, Annealing, Heterojunction, Gallium arsenide, Indium phosphide
In 1990, the National Assessment of Educational Progress (NAEP) included a Trial State Assessment (TSA); for the first time in NAEP's history, voluntary state-by-state assessments were made. In 1992, the NAEP Program included an expanded TSA in fourth-grade reading. The 1992 reading assessment considered students' performance in situations that involved reading different kinds of materials for different purposes. The fourth-grade assessment measured two global purposes for reading--reading for...
Topics: ERIC Archive, Comparative Analysis, Grade 4, Intermediate Grades, National Competency Tests, Public...
This book provides the framework for the language arts core curriculum in Alabama's K-12 public schools. Course content, presented as student outcomes in the book, is minimum and required by state law. Student outcomes are specific but not exhaustive. In addition to the prescribed core program, the book contains an introduction; program goals and value statements; a conceptual framework and narrative; trends, issues, and position statements; course narratives; appendixes that include Alabama...
Topics: ERIC Archive, Elementary Secondary Education, Language Arts, Outcomes of Education, Program...
The low cost and availability of clusters of workstations have lead researchers to re-explore distributed computing using independent workstations. This approach may provide better cost/performance than tightly coupled multiprocessors. In practice, this approach often utilizes wasted cycles to run parallel jobs. The feasibility of such a non-dedicated parallel processing environment assuming workstation processes have preemptive priority over parallel tasks is addressed. An analytical model is...
Topics: NASA Technical Reports Server (NTRS), DISTRIBUTED PROCESSING, FEASIBILITY, PARALLEL PROCESSING...
Climate forcings and feedbacks vary over a wide range of time and space scales. The operation of non-linear feedbacks can couple variations at widely separated time and space scales and cause climatological phenomena to be intermittent. Consequently, monitoring of global, decadal changes in climate requires global observations that cover the whole range of space-time scales and are continuous over several decades. The sampling of smaller space-time scales must have sufficient statistical...
Topics: NASA Technical Reports Server (NTRS), ACCURACY, CLIMATE CHANGE, CLIMATOLOGY, DATA SAMPLING,...
This is the Space Station Freedom (SSF) Evolution Study 1993 Final Report, performed under NASA Contract NAS8-38783, Task Order 5.1. This task examined: (1) the feasibility of launching current National Space Transportation System (NSTS) compatible logistics elements on expendable launch vehicles (ELV's) and the associated modifications, and (2) new, non-NSTS logistics elements for launch on ELV's to augment current SSF logistics capability.
Topics: NASA Technical Reports Server (NTRS), LAUNCH VEHICLES, LOGISTICS, SPACE STATION FREEDOM, SPACE...
The investigation of coherent backscatter of microwave signals from the ocean surface to better understand the effects of surface motion on synthetic aperture radar images. The objective is to analyze the behavior of coherent electromagnetic backscatter from the ocean surface for a dual frequency dual polarization radar. Frequency and polarization diversity provides a picture of the mechanisms involved in the microwave backscatter. In this study, data was obtained from various UMass radar...
Topics: DTIC Archive, McIntosh, Robert E, MASSACHUSETTS UNIV AMHERST DEPT OF ELECTRICAL AND COMPUTER...
The Computer Science Department at the Naval Postgraduate School in Monterey, California has developed a low-cost real-time interactive network based simulation system, known as NPSNET, that uses Silicon Graphics workstations. NPSNET has used non-standard protocols which constrains its participation in distributed simulation. DIS specifies standard protocols and is emerging as the international standard for distributed simulation. This research focused on the development of a robust,...
Topics: DTIC Archive, Zeswitz, Steven R, NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF COMPUTER SCIENCE,...
In response to the growing number of environmental laws and regulations worldwide, the Air Force adopted an environmental compliance program that identifies compliance problems before they are cited as violations by the U.S. Environmental Protection Agency (USEPA). Beginning in 1984, the U.S. Army Construction Engineering Research Laboratories, in cooperation with the Air Force Engineering and Services Center, began research on ECAMP. Federal, Department of Defense (DOD), and Air Force...
Topics: DTIC Archive, Schell, Donna J, CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL,...
This study identified possible sources of UV, IR and visible radiations that may cause an optical fire detector to false alarm and/or affect its fire detection performance. The spectral irradiances of JP-4 pan fires and a multitude of lamps, hot bodies, and other of radiation stimuli that an optical detector may be exposed to in any type of aircraft shelter, hanger, facility, or ground location, were determined. Knowing the spectral irradiances of the required fire size and distance to be...
Topics: DTIC Archive, Goedeke, A D, DONMAR LTD NEWPORT BEACH CA, *ULTRAVIOLET RADIATION, *FALSE ALARMS,...
In this thesis, the dynamic role of bottom topography in a Beta-plane channel is systematically studied in both linear homogeneous and stratified layer models in the presence of either wind stress or buoyancy forcing. In these studies, the structure of the geostrophic contour plays a fundamental role, and the role of bottom topography is looked at from two different angles. It is shown that blocking all the geostrophic contours leads to two different physical processes in which bottom...
Topics: DTIC Archive, Wang, Liping, WOODS HOLE OCEANOGRAPHIC INSTITUTION MA, *OCEAN CURRENTS, *OCEAN BOTTOM...
Nonequilibrium carrier distributions in microcavity lasers are computed by solution of a quantum Boltzmann equation that includes carrier- carrier-phonon, and carrier-photon scattering as well as the pump process. A significant heating of the carrier plasma is observed as a consequence of the Pauli blocking of carrier injection and the removal of cold carriers through the process of stimulated recombination.
Topics: DTIC Archive, Jahnke, F, ARIZONA UNIV TUCSON OPTICAL SCIENCES CENTER, *LASER CAVITIES,...
The research trip summarizes highlights from three conferences or workshops in which Dr. Wolfgang-Martin Boerner participated during the period of August and September 1993, in Japan. The three conference were: the 1993 International Geoscience and Remote Sensing Symposium, 18-21 Aug, Tokyo Japan; the XXIVth General Assembly of the international Union of Radio Science, 25 Aug - 2 Sept, Kyoto, Japan; and the First international workshop on Electromagnetic Phenomena Related to Earthquake...
Topics: DTIC Archive, Boerner, W., ASIAN OFFICE OF AEROSPACE RESEARCH AND DEVELOPMENT APO AP 96337-0007,...
During the Perth meeting of the Australian Education Council (AEC) on July 1-2, 1993, policy making power shifted from the AEC to the states and from Labor to non-Labor ministers. Labor ministerial power directed public education through much of the 1980s, when the rhetoric of national partnership was all-pervasive. At the July conference, the non-Labor State Ministers of Education ambushed the AEC policy processes and reasserted their constitutional rights. A balkanization of powers occurred...
Topics: ERIC Archive, Accountability, Decentralization, Educational Policy, Elementary Secondary Education,...
This study examined the separate and joint use of high school course grades, course work taken, and American College Testing Program (ACT) Assessment subject area scores for making course placement decisions. The data for this study were obtained from nine institutions through their participation in a pilot study of the ACT Course Placement Service. College courses included were remedial and standard mathematics courses, reading courses, and English courses. Sample sizes ranged from 26 to...
Topics: ERIC Archive, College Freshmen, Course Selection (Students), Decision Making, English, Grade Point...
A mathematical model of solidification, that simulates the formation of channel segregates or freckles, is presented. The model simulates the entire solidification process, starting with the initial melt to the solidified cast, and the resulting segregation is predicted. Emphasis is given to the initial transient, when the dendritic zone begins to develop and the conditions for the possible nucleation of channels are established. The mechanisms that lead to the creation and eventual growth or...
Topics: NASA Technical Reports Server (NTRS), FINITE ELEMENT METHOD, HIGH TEMPERATURE ENVIRONMENTS, LEAD...
Pressure distributions on three inlets having different cowl lengths were obtained in the Langley 16-Foot Transonic Tunnel. The cowl diameter ratio (highlight diameter to maximum diameter) was 0.85 and the cowl length ratios (cowl length to maximum diameter) were 0.337, 0.439, and 0.547. The cowls had identical nondimensionalized (with respect to cowl length) external geometry and identical internal geometry. The internal contraction ratio (highlight area to throat area) was 1.250. The inlets...
Topics: NASA Technical Reports Server (NTRS), ANGLE OF ATTACK, AXISYMMETRIC BODIES, COWLINGS, ENGINE...
The goal of the Benchmark Models Program is to provide data useful in the development and evaluation of aeroelastic computational fluid dynamics (CFD) codes. To that end, a series of three similar wing models are being flutter tested in the Langley Transonic Dynamics Tunnel. These models are designed to simultaneously acquire model response data and unsteady surface pressure data during wing flutter conditions. The supercritical wing is the second model of this series. It is a rigid semispan...
Topics: NASA Technical Reports Server (NTRS), AEROELASTICITY, DYNAMIC STRUCTURAL ANALYSIS, FLUTTER...
Free-to-roll tests were conducted in water and wind tunnels in an effort to investigate the mechanisms of wing rock on a NASP-type vehicle. The configuration tested consisted of a highly-slender forebody and a 78 deg swept delta wing. In the water tunnel test, extensive flow visualization was performed and roll angle histories were obtained. In the wind tunnel test, the roll angle, forces and moments, and limited forebody and wing surface pressures were measured during the wing rock motion. A...
Topics: NASA Technical Reports Server (NTRS), BLOWING, BODY-WING AND TAIL CONFIGURATIONS, DELTA WINGS, FLOW...
Intermetallic matrix composites develop residual stresses from the large thermal expansion mismatch (delta-alpha) between the fibers and matrix. This work was undertaken to: establish improved techniques to measure these thermal stresses in IMC's; determine residual stresses in a variety of IMC systems by experiments and modeling; and, determine the effect of residual stresses on selected mechanical properties of an IMC. X ray diffraction (XRD), neutron diffraction (ND), synchrotron XRD (SXRD),...
Topics: NASA Technical Reports Server (NTRS), MECHANICAL PROPERTIES, METAL MATRIX COMPOSITES,...
The Tropical Rainfall Measuring Mission (TRMM) concept originated in 1984. Its overall goal is to produce datasets that can be used in the improvement of general circulation models. A primary objective is a multi-year data stream of monthly averages of rain rate over 500 km boxes over the tropical oceans. Vertical distributions of the hydrometers, related to latent heat profiles, and the diurnal cycle of rainrates are secondary products believed to be accessible. The mission is sponsored...
Topics: NASA Technical Reports Server (NTRS), ATMOSPHERIC GENERAL CIRCULATION MODELS, ENVIRONMENTAL...
The Workshop on Unstructured Grid Generation Techniques and Software was conducted for NASA to assess its unstructured grid activities, improve the coordination among NASA centers, and promote technology transfer to industry. The proceedings represent contributions from Ames, Langley, and Lewis Research Centers, and the Johnson and Marshall Space Flight Centers. This report is a compilation of the presentations made at the workshop.
Topics: NASA Technical Reports Server (NTRS), COMPUTATIONAL FLUID DYNAMICS, COMPUTER PROGRAMS, CONFERENCES,...
We introduce an algorithm for path planning (long duration) paths of dynamical systems, given a persistent object store containing suitable collections of short duration trajectory segments. We also describe experimental results from a proof-of-concept implementation of the algorithm. The basic idea is to interpret a path planning algorithm as a suitable query on a persistent object store consisting of short duration trajectory segments. The query returns a concatenation of short duration...
Topics: NASA Technical Reports Server (NTRS), TRAJECTORY ANALYSIS, TRAJECTORY PLANNING, ALGORITHMS,...
Because of its large variety of aspects, the symbiotic phenomenon is not very suitable for a statistical treatment. It is also not clear whether symbiotic stars really represent a homogeneous group of astrophysical objects or a collection of objects of different natures but showing similar phenomena. However we are especially interested in the symbiotic phenomenon, i.e., in those physical processes occurring in the atmosphere of each individual object and in their time dependence. Such a...
Topics: NASA Technical Reports Server (NTRS), ANDROMEDA CONSTELLATION, ASTROPHYSICS, CYGNUS CONSTELLATION,...
Our final report for Phase 1 addressed the future space transportation needs and requirements based on the current assets, at the time, and their evolution through technology/advanced development using a path and schedule that supported the world leadership role of the United States in a responsible and realistic financial forecast. Always, and foremost, the recommendations placed high values on the safety and success of missions both manned and unmanned through a total quality management...
Topics: NASA Technical Reports Server (NTRS), LAUNCH VEHICLES, LUNAR BASES, ORBIT TRANSFER VEHICLES,...
This study examines the elements of "work and play" as they are conceptualized by the children of the Showmen's Guild of Australasia. Recreation and work are semantically distinct, but this distinction can be blurred in particular contexts and according to differing individual perceptions. As part of a study evaluating a distance education program, interviews conducted with parents, children, home tutors, and itinerant teachers included a series of questions about work and play. It...
Topics: ERIC Archive, Childhood Attitudes, Elementary Secondary Education, Foreign Countries, Leisure Time,...
Downsizing the Army has the effect of reducing the level of involvement of corporations in the defense contracting environment; thus, the size of the industrial base decreases. The paper analyzes the cost impacts of the shrinking industrial base with a discussion of the cause/effect issues involved in relating industrial base size to cost. In addition, the paper studies trends in the size of the industrial base over the past several years. Corporate data is used to determine the amount of...
Topics: DTIC Archive, DiCesare, Ron, ARMY TANK-AUTOMOTIVE COMMAND WARREN MI DIRECTORATE FOR SYSTEMS AND...
A class of approximations (S(sub N,M)) to a periodic function f which uses the ideas of Pade, or rational function, approximations based on the Fourier series representation of f, rather than on the Taylor series representation of f, is introduced and studied. Each approximation S(sub N,M) is the quotient of a trigonometric polynomial of degree N and a trigonometric polynomial of degree M. The coefficients in these polynomials are determined by requiring that an appropriate number of the...
Topics: NASA Technical Reports Server (NTRS), FOURIER SERIES, PADE APPROXIMATION, RATIONAL FUNCTIONS,...
Chilton's Automotive Marketing 1993-09: Volume 22 , Issue 9. Digitized from IA1532724-07 . Previous issue: sim_automotive-marketing_1993-08_22_8 . Next issue: sim_automotive-marketing_1993-10_22_10 .
Topics: Engineering & Technology, Trade Journals, microfilm
Source: IA1532724-07
AAHE Bulletin 1993-09: Volume 46 , Issue 1. Digitized from IA1534302-06 . Previous issue: sim_american-association-for-higher-education-aahe-bulletin_1993-06_45_10 . Next issue: sim_american-association-for-higher-education-aahe-bulletin_1993-10_46_2 .
Topics: Education, Trade Journals, microfilm
Source: IA1534302-06
Welding Design & Fabrication 1993-09: Volume 66 , Issue 9. Digitized from IA1629918-03 . Previous issue: sim_welding-design-fabrication_1993-08_66_8 . Next issue: sim_welding-design-fabrication_1993-10_66_10 .
Topics: Metallurgy-Welding, Trade Journals, microfilm
Source: IA1629918-03
Journal of Financial Services Research 1993-09: Volume 7 , Issue 3. Digitized from IA1518711-04 . Previous issue: sim_journal-of-financial-services-research_1993-06_7_2 . Next issue: sim_journal-of-financial-services-research_1993-12_7_4 .
Topics: Business And Economics--Banking And Finance, Insurance, Real Estate, Scholarly Journals, microfilm
Source: IA1518711-04
73 Amateur Radio's Technical Journal 1993-09: Volume None , Issue 396. Digitized from IA1627913-04 . Previous issue: sim_73-amateur-radio-today_1993-08_395 . Next issue: sim_73-amateur-radio-today_1993-10_397 .
Topics: Communication & Information Sciences, Trade Journals, microfilm
Source: IA1627913-04
Bank of Canada Review Autumn 1993: Volume None , Issue None. Digitized from IA1574721-02 . Previous issue: sim_bank-of-canada-review_1993-09_supplement . Next issue: sim_bank-of-canada-review_1993-11_supplement .
Topics: Business And Economics--Banking And Finance, Trade Journals, microfilm
Source: IA1574721-02
The Society of Chartered Property and Casualty Underwriters. CPCU Journal 1993-09: Volume 46 , Issue 3. Digitized from IA1628711-02 . Previous issue: sim_society-of-chartered-property-and-casualty-underwriters_1993-06_46_2 . Next issue: sim_society-of-chartered-property-and-casualty-underwriters_1993-12_46_4 .
Topics: Insurance, Trade Journals, microfilm
Source: IA1628711-02
There is general agreement that a high degree of variability exists between subjects in their autonomic nervous system responses to motion sickness stimulation. Additionally, a paucity of data exists that examines the variability within an individual across repeated motion sickness tests. Investigators have also examined the relationship of autonomic responses to motion sickness development. These investigations have used analyses at discrete points in time to describe this relationship. This...
Topics: NASA Technical Reports Server (NTRS), AEROSPACE MEDICINE, AUTONOMIC NERVOUS SYSTEM, MOTION...
The work done by Thermacore, Inc., Lancaster, Pennsylvania, for the Phase 1, 1992 SBIR National Aeronautics and Space Administration Contract, 'Insoluble Coatings for Stirling Engine Heat Pipe Condenser Surfaces' is described. The work was performed between January 1992 and July 1992. Stirling heat engines are being developed for electrical power generation use on manned and unmanned earth orbital and planetary missions. Dish Stirling solar systems and nuclear reactor Stirling systems are two...
Topics: NASA Technical Reports Server (NTRS), ALUMINIDES, CORROSION PREVENTION, HEAT ENGINES, HEAT PIPES,...
