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Defense Technical Information Archive

4 4.0

DTIC ADA037799: Analysis of Demands on the Naval Air Rework Facility, North Island.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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In developing a system for allocating manpower resources in the Navy, major emphasis has been placed on the design of an input-output model to forecast the workload of shore activities, based on the size and distribution of the fleet. To determine the feasibility of an input-output analysis for operational use, a full-scale model of the 11th Naval District is being developed. The input-output analysis requires data on the work output of each shore activity and its destination in the fleet and...
Topics: DTIC Archive, Blanco,Thomas A, Rowe,Murray W, NAVY PERSONNEL RESEARCH AND DEVELOPMENT CENTER SAN...

Defense Technical Information Archive

8 8.0

DTIC ADA037798: Primate-Fixation Device for Retinal Photography and Experimental High Let Radiation Exposure.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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A fixation device for precise alignment of rhesus monkey eyes for photography and irradiation is presented. (Author)
Topics: DTIC Archive, Bonney,Charles H, Conley,Guy E, Hunter,David M, SCHOOL OF AEROSPACE MEDICINE BROOKS...

Defense Technical Information Archive

5 5.0

DTIC ADA037797: The Electronic Structure of Crystalline Solids: Their Surfaces and Interfaces.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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This project was designed to study accurate, non-empirical theoretical techniques which permit one to have a predictive theoretical capability for systems of interest in electronic devices of a solid state nature. Thus, the classes of materials of interest include insulator (principally oxides), semiconductors, and some metals. Properties of bulk crystalline solids are needed as are properties of surfaces and interfaces. It is desired to develop a unified technique for all classes of systems....
Topics: DTIC Archive, Kunz,A Barry, ILLINOIS UNIV AT URBANA-CHAMPAIGN DEPT OF PHYSICS, *CRYSTAL STRUCTURE,...

Defense Technical Information Archive

4 4.0

DTIC ADA037796: Temperature Compensated Piezoelectric Materials

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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In order to search for new temperature compensated materials for surface acoustic wave (SAW) devices with low ultrasonic attenuation and high electro-mechanical coupling, the following experimental and theoretical investigation were carried out. Extensive crystal growth investigations were carried out for Pb2KNb5O15, Li2SiO3, Ba2Si2TiO8, Ba2Ge2TiO8, and Bi2MoO5, using Czochralski or flux-pulling methods. Progress in reducing the cracking problem was made by improved temperature control during...
Topics: DTIC Archive, Barsch, G R, Spear, K E, PENNSYLVANIA STATE UNIV STATE COLLEGE MATERIALS RESEARCH...

Defense Technical Information Archive

4 4.0

DTIC ADA037795: Growth of Pure Single Crystals of Alkali Halides and Alkaline Earth Fluorides

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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This first semiannual technical report describes our progress on developing an ion exchange - reactive gas purification scheme for potassium bromide, strontium fluoride and barium fluoride. Measurements of the removal fraction of alkali ion impurity as a function of number of resin bed volumes and KBr concentration are given for the ion exchange resin Chelex 100. The design of a contamination-free reactive gas seal and the reactive gas manifold are discussed.
Topics: DTIC Archive, Fredericks, W J, OREGON STATE UNIV CORVALLIS DEPT OF CHEMISTRY, *ALKALINE EARTH...

Defense Technical Information Archive

4 4.0

DTIC ADA037794: VLF/LF Reflectivity of the Polar Ionosphere, 21 September 1975 - 3 January 1976,

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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This report provides a summary of high latitude ionospheric reflectivity as observed by the USAF high resolution VLF/LF ionosounder operating in northern Greenland. Ionospheric reflectivity parameters, including reflection coefficients and heights, are presented as a function of time of day. VLF long path propagation measurements, along with magnetometer and riometer data, are presented as supplemental information. (Author)
Topics: DTIC Archive, Rasmussen,John E, McLain,Ralph J, Turtle,John P, Klemetti,Wayne I, ROME AIR...

Defense Technical Information Archive

4 4.0

DTIC ADA037793: Research Study in Growth of Aluminum-Nitride on Sapphire Piezoelectric Films.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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The growth and characterization of aluminum nitride epitaxial films on R-plane sapphire has been investigated in an eighteen month program aimed at improving the quality and uniformity of the material for use in microwave bandpass filters. This report details the entire process of AlN film processing starting from the polishing of sapphire wafers and ending with the electrical characterization of the resultant films. The polishing of sapphire proved to be a major effort because the constraints...
Topics: DTIC Archive, Lakin,Kenneth M, Liu,James K, UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES...

Defense Technical Information Archive

2 2.0

DTIC ADA037791: The Measurement of Microwave Multipath in an Airport Environment.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Multipath in an operating airport, and its impact on the performance of a Microwave Landing System (MLS) is an important aspect of the development of these systems. Test programs on the candidate MLS systems developed in the U.S. were conducted in areas that do not emulate large commercial airports. In order to better evaluate multipath in a realistic environment, measurements of reflected signals at the MLS operating frequency were performed, and the results used to develop or modify a...
Topics: DTIC Archive, Hubbard,R W, Pratt,L E, Hartman,W J, OFFICE OF TELECOMMUNICATIONS BOULDER COLO INST...

Defense Technical Information Archive

4 4.0

DTIC ADA037790: Airport Surface Traffic Control Tags Planning Alternatives and Cost/Benefit Analysis.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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The findings of a cost/benefit analysis of the deployment of a new airport ground surveillance system TAGS (Tower Automated Ground Surveillance) are presented. TAGS will provide a plan view display of aircraft on the airports taxiways and runways like ground surveillance radar (ASDE); but unlike ASDE, TAGS will perform in heavy precipitation and automatically acquire and display aircraft flight identity. The findings indicate that a TAGS deployment of between four and nine systems is...
Topics: DTIC Archive, Rempfer,Paul S, TRANSPORTATION SYSTEMS CENTER CAMBRIDGE MASS, *COST ANALYSIS, *AIR...

Defense Technical Information Archive

5 5.0

DTIC AD0037785: THE EFFECT OF ACCELERATION TIME ON PLASTIC DEFORMATION OF BEAMS UNDER TRANSVERSE IMPACT LOADING

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Topics: DTIC Archive, GREEN, D. S., BROWN UNIV PROVIDENCE RI DIV OF APPLIED MATHEMATICS, *ACCELERATION,...

Defense Technical Information Archive

5 5.0

DTIC AD0037784: THE GENERALIZED SIMPLE WAVE

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Topics: DTIC Archive, NAYLOR, D., BROWN UNIV PROVIDENCE RI DIV OF APPLIED MATHEMATICS, *COMPRESSIBLE FLOW,...

Defense Technical Information Archive

4 4.0

DTIC AD0037778: FUNDAMENTALS OF THE TRANSITION TEMPERATURE PHENOMENON IN STEEL

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Topics: DTIC Archive, BRITTAIN, J. O., GENSAMER, M., HENRY KRUMB SCHOOL OF MINES NEW YORK, *STEEL,...

Defense Technical Information Archive

3 3.0

DTIC ADA037778: The Adversarial Relationship between Government and Industry.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Data was obtained through a review of the literature and correspondence on the subject, and through interviews with procurement officials. It was determined that no specific government policy exists concerning adversarial relationships. However, the relationship is widespread in the defense arena. The relationship results from several immediate causes including the underpricing of contracts, a disproportionate government emphasis on curtailing profits, the nature of the government's procurement...
Topics: DTIC Archive, Patterson,Michael B, DEFENSE SYSTEMS MANAGEMENT COLL FORT BELVOIR VA, *GOVERNMENT...

Defense Technical Information Archive

5 5.0

DTIC ADA037777: A Review of the Management of Air Force Air-to-air Missiles Research, Development Testing, and Production Programs.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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This report reviews past and present Air Force AAM efforts with an emphasis placed upon management lessons learned. Future AAM developments in the Air Force will most likely also be joint-Service efforts and management will be an important key element in fulfilling Air Force AAM requirements.
Topics: DTIC Archive, Moruzzi,Frank David, DEFENSE SYSTEMS MANAGEMENT COLL FORT BELVOIR VA, *MANAGEMENT,...

Defense Technical Information Archive

4 4.0

DTIC ADA037776: Training Planning in the Acquisition Process Must Keep Pace with Changing Training Trends.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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The purpose of this study was to investigate the process for integrating training into the system acquisition process and the impact of changing training trends within the Army on the Project Manager. The report discusses the acquisition environment from the training standpoint and the need for a total systems view which includes the man-machine interface. The integrating process is presented as one of refining a general training plan toward specific outputs throughout the life cycle phases.
Topics: DTIC Archive, Wilson,Hogan M, DEFENSE SYSTEMS MANAGEMENT COLL FORT BELVOIR VA, *ARMY TRAINING,...

Defense Technical Information Archive

4 4.0

DTIC ADA037775: Human Factors Programs in Navy Systems Acquisition.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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This report examined the role that human factors programs play in Navy systems acquisition. It focused upon the conceptual and validation (advanced development) phases of the acquisition process since it is during this period when the great majority of system design decisions are made. Based upon previous analyses, interview data and the author's personal experience, human factors program activities appropriate to the conceptual and validation phases were identified and discussed relative to...
Topics: DTIC Archive, Merriman,Stephen C, DEFENSE SYSTEMS MANAGEMENT COLL FORT BELVOIR VA, *HUMAN FACTORS...

Defense Technical Information Archive

4 4.0

DTIC ADA037774: Photocounting Image Tracking of Fluctuating Targets

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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A theory of estimation of angular position and other attributes of optically rough and smooth targets with a monopulse laser radar is developed. It applies to systems deriving information about the target position by sensing its image with an array of noncoherent detectors. The theory develops quantitative formulations of the fundamental limitations imposed upon measurement accuracy by the shot noise arising from both the target return and the background radiation, by the detector dark current,...
Topics: DTIC Archive, Elbaum, Marek, RIVERSIDE RESEARCH INST NEW YORK, *LASER TRACKING, *OPTICAL RADAR,...

Defense Technical Information Archive

5 5.0

DTIC ADA037773: Lightweight Lighted Buoy Development for use as Discrepancy NAVAIDS.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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This report presents the development of the Coast Guard discrepancy buoys. A discrepancy buoy is used as a temporary floating aid to navigation while the normal aid is not available due to storm damage, collision, or failure. The discrepancy buoys are also used for special aids such as the temporary marking of wrecks or the control of boats at regattas. The 190-pound prototype discrepancy buoy has survived storms with wind velocities of up to 68 mph and waves in excess of five feet. The buoy...
Topics: DTIC Archive, Colburn,W E, Thompson,W R, COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CONN,...

Defense Technical Information Archive

4 4.0

DTIC ADA037772: Saturation, Heu, And Normalized Color: Calculation, Digitization Effects, and Use.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Three transformations used in the analysis of tricolor natural scenes are analyzed. All have nonremovable singularities, near which they are highly unstable. Given digital input, the distribution of their transformed balues is highly nonuniform, characterized by spurious modes and gaps. These effects are quantified and illustrated. In addition, a significantly faster algorithm for hue is derived. Image segmentation techniques of edge detection, region growing cluster, and region splitting are...
Topics: DTIC Archive, Kender,John R, CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF COMPUTER SCIENCE, *COMPUTER...

Defense Technical Information Archive

4 4.0

DTIC ADA037771: Production System Conflict Resolution Strategies.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Production systems designed to function and grow in environments that make large numbers of different, sometimes competing, and sometimes unexpected demands require support from their interpreters that is qualitatively different from the support required by systems that can be carefully hand crafted to function in constrained environments. This paper explores the role of conflict resolution in rpoviding such support. Using criteria developed in the paper, both individual conflict resolution...
Topics: DTIC Archive, McDermott,J, Forgy,C, CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF COMPUTER SCIENCE,...

Defense Technical Information Archive

3 3.0

DTIC ADA037770: Focus of Attention in the Hearsay-II Speech Understanding System

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Hearsay-2 is a complex, distributed-logic system for speech understanding developed at Carnegie-Mellon University. Processing is performed by independent, data-directed knowledge source processes that examine and alter values in a global data base representing hypothesized phonetic segments, syllables, words, and phrases, as well as the hypothetical temporal and logical relationships among them. The question of how the numerous potential activities of the knowledge sources should be scheduled...
Topics: DTIC Archive, Hayes-Roth, Frederick, Lesser, Victor, CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF...

Defense Technical Information Archive

4 4.0

DTIC ADA037769: Working Papers in Acquisition of Knowledge for Image Understanding Research.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Use of knowledge has facilitated comples problem solving in many areas of research. However, in the Image Understanding area, we do not have any systematic treatment and codification of knowledge that is useful in image perception. Further, we do not eveh have adequate tools for acquiring the necessary knowledge base. In this report we present an experimental paradigm for knowledge acquisition, discuss an analysis technique, and illustrate the different types of knowledge that seem to be useful...
Topics: DTIC Archive, Akin,Omer, Reddy,Raj, Ohlander,Ronald, Schultz,Marty, CARNEGIE-MELLON UNIV PITTSBURGH...

Defense Technical Information Archive

8 8.0

DTIC ADA037768: Abstraction and Verification in Alphard: A Symbol Table Example.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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The design of the Alphard programming language has been strongly influenced by ideas from the areas of programming methodology and formal program verification. In this paper we design, implement, and verify a general symbol table mechanism. This example is rich enough to allow us to illustrate the use as well as the definition of programmer-defined abstractions. The verification illustrates the power of the form to simplify proofs by providing strong specifications of such abstractions. (Author)
Topics: DTIC Archive, London,Ralph L, Shaw,Mary, Wulf,Wm A, CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF...

Defense Technical Information Archive

4 4.0

DTIC ADA037767: HYDRA Basic Kernel Reference Manual.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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This document is a reference manual for the Hydra Kernel. It contains a minimal amount of tutorial information. Readers who are not familiar with the ideas behind the capability-based protection systems so vital to Hydra are encouraged to read first the Hydra article in the CACM (Wu74), and the collection of papers given at the Fifth Symposium on Operating Systems Principles, particularly the paper by Cohen (Coh75). There is a default user environment, consisting of the Hydra kernel and a...
Topics: DTIC Archive, Cohen,Ellis, Corwin,Bill, Jefferson,Dave, Lane,Tom, Levin,Roy, CARNEGIE-MELLON UNIV...

Defense Technical Information Archive

6 6.0

DTIC ADA037766: Convergence and Remainder Terms in Linear Rank Statistics.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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A new approach to the asymptotic normality of simple linear rank statistics for the regression case is provided along with the estimation of the remainder terms in the approximation to normality.
Topics: DTIC Archive, Bergstrom,Harold, Puri,Madan L, INDIANA UNIV BLOOMINGTON DEPT OF MATHEMATICS,...

Defense Technical Information Archive

2 2.0

DTIC ADA037765: Problems of Association for Bivariate Circular Data and a New Test of Independence.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Measures of association and regression suggested thus far in connection with bivariate circular data, have been briefly reviewed. A new test statistic for testing coordinate independence of observations on a torus, is proposed and its asymptotic null distribution derived using Fourier analysis methods. (Author)
Topics: DTIC Archive, Puri,Madan L, Rao,J S, INDIANA UNIV BLOOMINGTON DEPT OF MATHEMATICS, *BIVARIATE...

Defense Technical Information Archive

4 4.0

DTIC ADA037764: Likelihood Ratios for Time-Continuous Data Models: The White Noise Approach.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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This document develops a formula for likelihood functionals for signals in additive noise in the time-continuous case using a white noise approach. It is shown that the formula differs from the well-known formula in the Wiener process version by the appearance of an additional term corresponding to the conditional mean square filtering error.
Topics: DTIC Archive, Balakrishnan,A V, CALIFORNIA UNIV LOS ANGELES DEPT OF SYSTEM SCIENCE, *SIGNAL...

Defense Technical Information Archive

3 3.0

DTIC ADA037763: Minmax Control of Systems with Uncertainty in the Initial State and in the State Equations.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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This paper investigates optimal control problems where there is uncertainty in the initial state measurement or where there are uncertain parameters in the state equations. It is assumed that nature will choose the uncertainty to maximize the cost which the controller is attempting to minimize. Thus a minmax control is sought. Sufficient conditions for a control to be a minmax control are presented. These conditions suggest methods for finding the minmax control and such techniques are...
Topics: DTIC Archive, Schmitendorf,W E, NORTHWESTERN UNIV EVANSTON IL DEPT OF MECHANICAL ENGINEERING,...

Defense Technical Information Archive

4 4.0

DTIC ADA037762: The Application of Theoretical Results in the Design of Safe Shelters in Rock.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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A review is given of an approach used to describe the propagation of shock waves in rock. Its application in the design of safe shelters is discussed and the results are confronted with those from other sources.
Topics: DTIC Archive, Persen,Leif N, PERSON (LEIF N) TRONDHEIM (NORWAY), *SHELTERS, *SHOCK WAVES, *SAFETY...

Defense Technical Information Archive

4 4.0

DTIC ADA037761: Experimental Simulation of Parametric Instabilities in Laser-Plasma Interactions.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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There is currently a great interest in the mechanisms by which intense electromagnetic radiation interacts with plasmas. A major impetus for this interest has been the laser-pellet fusion program. The process whereby the incident electromagnetic wave gives up energy to the plasma can be much more complex than simple binary collisional damping by electronion collisions. (Author)
Topics: DTIC Archive, Luhmann,N C , Jr, CALIFORNIA UNIV LOS ANGELES DEPT OF ELECTRICAL SCIENCES AND...

Defense Technical Information Archive

5 5.0

DTIC ADA037760: Research in Materials Science

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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The quaternary semiconductor In(1-x)Ga(x)p(1-z)As(Z) has been exploited to construct light emitting and laser diodes with selective emission from the yellow of the visible spectrum to the infrared. The properties of deep traps which affect the performance of silicon devices has been characterized. Molecular interactions and fast atomic motion has been investigated in liquids, liquid crystals, organic semiconductors, ionic superconductors, layered dichalcogenides and superconductor alloys.
Topics: DTIC Archive, Maurer, Robert J, ILLINOIS UNIV AT URBANA MATERIALS RESEARCH LAB, *LIGHT EMITTING...

Defense Technical Information Archive

4 4.0

DTIC ADA037759: Monotone Dependence.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Random variables X and Y are mutually completely dependent if there exists a one-to-one function g for which P(Y=g(X)) = 1. An example is presented of a pair of random variables which are mutually completely dependent, but 'almost' independent. This example motivates considering a new concept of dependence, called monotone dependence, in which g above is now required to be monotone. Finally, this monotone dependence concept leads to defining and studying the properties of a new numerical...
Topics: DTIC Archive, Kimeldorf,George, Sampson,Allan R, FLORIDA STATE UNIV TALLAHASSEE DEPT OF STATISTICS,...

Defense Technical Information Archive

7 7.0

DTIC AD0037757: DEVELOPMENT OF A NEW DRY TYPE FACSIMILE PAPER

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Topics: DTIC Archive, DANA, HOMER J., WASHINGTON STATE INST OF TECH PULLMAN ENGINEERING EXPERIMENT STATION,...

Defense Technical Information Archive

4 4.0

DTIC ADA037757: General Purpose Computer Acquisition.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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The paper is divided into four major chapters, each of which takes the reader through a series of steps which are essential to the task of evaluating and selecting a computer system. Report concentrates on general purpose commercially available (non-embedded) computers. The inquiry was conducted by means of library research. The emphasis on topic selection is that of the author and is by no means either all-inclusive or exhaustive. The attempt was to review current literature pertaining to ADP...
Topics: DTIC Archive, Marr,Francis C, DEFENSE SYSTEMS MANAGEMENT COLL FORT BELVOIR VA, *DATA PROCESSING,...

Defense Technical Information Archive

4 4.0

DTIC ADA037756: Presentation of Missile Flight Information

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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The information presented in this document is an aid to all ranges in determining which systems may have merit for their application and to provide some insight into future applications of display systems; determine the type of display systems currently in use at the various ranges and the data being presented to the Range Safety Officer. The Range Safety Officer will maintain surveillance during flight to insure compliance with established safety criteria.
Topics: DTIC Archive, RANGE COMMANDERS COUNCIL WHITE SANDS MISSILE RANGE NM RANGE SAFETY GROUP, *IMPACT...

Defense Technical Information Archive

4 4.0

DTIC ADA037755: Principles and Applications of Adaptive Filters: A Tutorial Review,

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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This report reviews the characteristics of a class of adaptive filters useful in signal processing and other applications where the properties of the signal are unknown or variable with time. The basic element of these filters is the adpative linear combiner, which weights (adjusts the gain of) and sums a set of input signals to form a single output signal. The weighting process is governed by a recursive algorithm that seeks to minimize the mean square of the difference between the combiner's...
Topics: DTIC Archive, McCool,John M, Widrow,Bernard, NAVAL UNDERSEA CENTER SAN DIEGO CALIF, *SIGNAL...

Defense Technical Information Archive

5 5.0

DTIC ADA037754: Thermal Radiative Losses from Graphite Calorimeters Used in Pulsed Electron Beam Experiments.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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A study to analytically model the thermal behavior of a graphite calorimeter block subjected to an initially non-uniform temperature profile has been conducted. The model allows prediction of the amount of energy lost from the block by the time a uniform temperature profile is achieved. It is assumed that the only means of energy loss to the surroundings is that of thermal radiation; the effects of convection and thermal conduction to the surroundings are neglected. In addition, it is assumed...
Topics: DTIC Archive, MacFarlane,John A, AIR FORCE WEAPONS LAB KIRTLAND AFB N MEX, *HEAT TRANSFER,...

Defense Technical Information Archive

3 3.0

DTIC ADA037753: Investigation of Defects and Impurities in Silicon-on-Sapphire.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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With the use of silicon-on-sapphire (SOS) in the manufacture of MOS/LSI circuitry rapidly approaching reality for military applications, the problem of nonuniform and inconsistent quality from lot-to lot and wafer-to wafer in commercially available SOS material must be dealt with. The first phase of this program examines the relationship between defects and impurities in the sapphire starting material and the quality of devices fabricated in silicon films grown on the sapphire. The quality of...
Topics: DTIC Archive, Williams,Ross A, Maurits,Jan E A, Peel,J L, Mittelbach,Frieda F, ROCKWELL...

Defense Technical Information Archive

4 4.0

DTIC ADA037752: Planar CMOS/SOS Array Development.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Three techniques for planarizing silicon-on-sapphire epitaxial islands are investigated. These three approaches are thermal oxidation isolation, ion-implantation isolation, and SIS (silicon-in-sapphire). N-channel MOS transistors fabricated using thermal oxidation isolation exhibit large edge leakage currents and are bias-temperature unstable. Stable p-channel MOS transistors can be fabricated if the field oxide is grown below 950 C in HCl steam. Test transistors fabricated using...
Topics: DTIC Archive, Weitzel,Charles E, RCA LABS PRINCETON N J, *METAL OXIDE SEMICONDUCTORS,...

Defense Technical Information Archive

12 12

DTIC ADA037751: Manufacturing Methods and Technology (MMTE) Measure for Fabrication of Low Voltage Start Sealed Beam Arc Lamps.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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A program is in progress to establish a production capability for the purpose of meeting estimated military needs for the X6335, a 1kW sealed beam xenon arc lamp with low voltage starting mechanism. In accordance with the requirements of the contract, the first engineering sample lamp was delivered. A modification was made in the structual design of the Second Engineering Sample to correct a dimension problem on the First Engineering Sample. Additional refinements have been implemented to the...
Topics: DTIC Archive, Chan,Edwin, Bell,Tim, EIMAC SAN CARLOS CALIF, *ARC LAMPS, *XENON LAMPS, *INFRARED...

Defense Technical Information Archive

4 4.0

DTIC ADA037750: Acute Toxicity of Diisopropylmethyl Phosphonate and Dicyclopentadiene to Aquatic Organisms.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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The acute toxicity of diisopropylmethyl phosphonate (DIMP) and dicyclopentadiene (DCPD) was studied utilizing aquatic organisms representing several trophic levels in an aquatic ecosystem. DCPD was found to be approximately 10X more toxic than DIMP. The eggs and 7-day old fry of the fathead minnow were the life stages least susceptible to DCPD and DIMP, respectively. Increasing hardness and pH 8.0 appeared to decrease slightly the toxicity of DIMP while the toxicity of DCPD was not...
Topics: DTIC Archive, Bently,Robert E, LeBlanc,Gerald A, Hollister,Terry A, Sleight,Bevier H , III, EG AND...

Defense Technical Information Archive

5 5.0

DTIC ADA037749: Laboratory Evaluation of the Toxicity of Nitrocellulose to Aquatic Organisms

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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The acute toxicity of nitrocellulose was studied utilizing aquatic organisms representing several different trophic levels in aquatic ecosystems. No acutely toxic effects of nitrocellulose were observed among any of the fish, invertebrate or algal species tested except with the green alga Selenastrum capricornutum. Studies with sediments containing nitrocellulose indicated no adverse effects among chironomid populations expoded to 540 mg nitrocellulose/kg of sediment over two generations. Based...
Topics: DTIC Archive, Bentley, Robert E., LeBlanc, Gerald A., Hollister, Terry A., Sleight, III, Bevier H.,...

Defense Technical Information Archive

8 8.0

DTIC AD0037748: RELATIVISTIC ION OPTICS OF A CYLINDRICAL ELECTROSTATIC ANALYZER

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Topics: DTIC Archive, HONNOLD, V. R., MILLER, W. C., NOTRE DAME UNIV IN, *DEUTERIUM, *RADIOACTIVE ISOTOPES,...

Defense Technical Information Archive

5 5.0

DTIC ADA037748: Reliability Estimating Procedures for Electric and Thermochemical Propulsion Systems. Volume 2

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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A family of computer programs provide the capability to examine life and uncertainty distributions at levels ranging from a specific failure mode of an individual device to a complete system of substantial complexity. All of the programs were written in the BASIC language (as implemented on the CDC Cybernet/ Kronos time sharing system) in order to provide interactive-mode capabilities.
Topics: DTIC Archive, BOOZ-ALLEN APPLIED RESEARCH BETHESDA MD, *THERMOCHEMICAL PROPULSION, *ELECTRIC...

Defense Technical Information Archive

8 8.0

DTIC AD0037747: PHOTODISINTEGRATION THRESHOLDS OF DEUTERIUM AND BERYLLIUM

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Topics: DTIC Archive, Noyes, J. C., VanHoomissen, J. E., Miller, W. C., Waldman, B., NOTRE DAME UNIV IN,...

Defense Technical Information Archive

15 15

DTIC ADA037747: Seismic Structural Design/Analysis Guidelines for Buildings.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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This report presents interim guidelines for the seismic structural design/analysis of the lateral-force-resisting systems of permanent military buildings. These guidelines are intended to enable critical, high-loss- and low-loss-potential buildings to withstand their respective design earthquakes without unacceptable loss of function or structural damage. Modal analysis procedures are advocated for critical buildings and high-loss-potential buildings with irregular shapes, large differences in...
Topics: DTIC Archive, Prendergast,J D, Fisher,W E, CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN...

Defense Technical Information Archive

4 4.0

DTIC AD0037746: ENERGY DETERMINATION OF CS137 K CONVERSION ELECTRONS

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Topics: DTIC Archive, BHATTACHERJEE, S. K., WALDMAN, B., MILLER, W. C., NOTRE DAME UNIV IN, *RADIOACTIVE...

Defense Technical Information Archive

12 12

DTIC ADA037746: Organizational and Individual Characteristics, Organizational Climate, and Job Attitudes: A Multivariate Investigation of Responses at Individual and Group Levels of Analysis.

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Questionnaire data were gathered from 396 employees in 15 stores of a large retail merchandising organization. The questionnaire included demographic and organizational position items, an organizational climate measure and a job attitude instrument. The individual data were aggregated at the work group level to form group summary variables for 87 work groups. Canonical analyses were conducted to examine relationships between positional, demographic, climate, and attitudinal variables. These...
Topics: DTIC Archive, Katerberg,Ralph , Jr, Herman,Jeanne B, Hulin,Charles L, ILLINOIS UNIV AT...

Defense Technical Information Archive

3 3.0

DTIC AD0037745: THE FORCES AND MOMENTS EXPERIENCED BY A TRAILING SHIP MOVING IN THE WAKE OF A LEADING SHIP

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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Topics: DTIC Archive, STRANDHAGEN, ADOLF G., KOBAYASHI, FRANCIS M., NOTRE DAME UNIV IN, *SHIPS, *TOWED...

Defense Technical Information Archive

4 4.0

DTIC ADA037745: Reliability Estimating Procedures for Electric and Thermochemical Propulsion Systems. Volume 1

Jun 30, 2016 06/16

Jun 30, 2016 Defense Technical Information Center

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The primary objective of this study was to develop a sound standardized basis for reliability comparisons of thermochemical and electric propulsion concepts applicable to Air Force satellite, spacecraft, and upper- stage mission requirements. A corollary objective was the identification of those propulsion system components which are currently the major contributors to propulsion system failures. Nearly one hundred component level and failure mode level models were developed in the course of...
Topics: DTIC Archive, BOOZ-ALLEN APPLIED RESEARCH BETHESDA MD, *THERMOCHEMICAL PROPULSION, *ELECTRIC...

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