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THE CALLING(SM) NETWORK - A GLOBAL WIRELESS COMMUNICATION-SYSTEM

INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS 1994年第1期12卷 45-61页

作者： TUCK, EF PATTERSON, DP STUART, JR LAWRENCE, MH Calling Communications Corporation. 1900 West Garvey Ave South. Suite 200 West Covina CA 91790 USA. Chairman of Calling Communications Corporation. He is also the Managing Director of Kinship Venture Management Inc. the general partner of Kinship Partners 11 and a General Partner of Boundary the general partner of The Boundary Fund. As a venture capitalist he has founded or participated in founding several telecommunications companies including Calling Communications Corporation Magellan Systems Corporation manufactures of Global Positioning System receivers Applied Digital Access manufacturer of DS-3 test access and network performance monitoring equipment Endgate Technology Corporation specialists in satellite phased array antennas and Poynting Systems Corporation. now a division of Reliance Corporation manufacturers of fibre optic transport equipment. He was a founder of Kebby Microwave Corporation where he invented the first solid-state. frequency-modulated commercial microwave link system. The company was acquired by ITT Corporation where he rose to the position of V.P. and Technical Director of ITT North America Telecommunications Inc. Subsequently he was V.P. of Marketing and Engineering at American Telecommunications Inc. (ATC). He was founding Director of American Telecom Inc. a joint venture between ATC and Fujitsu and has served on more than 20 boards of directors including those of three public companies. He has authored articles on microwave engineering and telephone signalling and was a contributor to Reference Data For Radio Engineers. He is a graduate of the University of Missouri at Rolla where he was later awarded an honorary Professional degree and serves on its Academy of Electrical Engineering. Mr Tuck is a Senior Member of the IEEE a Fellow of the Institution of Engineers (Australia) a Professional Member of the AIAA and a registered professional engineer in three states. More than 25 years of experience in the telecommunications industry where he has been responsibl

There is a very large demand for basic telephone service in developing nations, and remote parts of industrialized nations, which cannot be met by conventional wireline and cellular systems. This is the world's largest unserved market. We describe a system which uses recent advances in active phased arrays, fast-packet switching technology, adaptive routeing, and light spacecraft technology, in part based on the work of the Jet Propulsion Laboratory and on recently-declassified work done on the Strategic Defense Initiative, to make it possible to address this market with a global telephone network based on a large low-Earth-orbit constellation of identical satellites. A telephone utility can use such a network to provide the same modern basic and enhanced telephone services offered by telephone utilities in the urban centres of fully-industrialized nations. Economies of scale permit capital and operating costs per subscriber low enough to provide a service to all subscribers, regardless of location, at prices comparable to the same services in urban areas of industrialized nations, while generating operating profits great enough to attract the capital needed for its construction. The bandwidth needed to support the capacity needed to gain these economies of scale requires that the system use K(alpha)-band frequencies. This choice of frequencies places unusual constraints on the network design, and in particular forces the use of a large number of satellites. Global demand for basic and enhanced telephone service is great enough to support at least three networks of the size described herein. The volume of advanced components, and services such as launch services, required to construct and replace these networks is sufficient to propel certain industries to market leadership positions in the early 21st Century.

关键词： LOW EARTH ORBIT SATELLITE COMMUNICATIONS FAST PACKET SWITCHING EARTH FIXED CELLS ADAPTIVE ROUTEING LIGHT SPACECRAFT K(A) BAND PHASED-ARRAY ANTENNAS

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Juniper—The New U.S. Coast Guard Buoy Tender

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Naval Engineers Journal 1994年第3期106卷 132-149页

作者： DANHIEUX, TIMOTHY J. LACOSSE, JAMES BENTGEN, BERNARD F. WILLIAMS, ROBERT E. Timothy J. Danhieux: chief naval architect Marinette Marine Corporation has been employed by Marinette Marine as a naval architect since 1982. He has been involved throughout Marinette Marine's WLB design effort and served as project engineer during the contract design. He received his BSE in naval architecture and marine engineering from the University of Michigan in 1978. Previous experience includes four years as a naval architect with Wesley D. Wheeler Associates Ltd. James LaCosse: ILS manager Marinette Marine Corporation moved to his present position after successfully serving as program manager of Marinette Marine's WLB contract design effort. Previous positions at Marinette Marine also include lead piping engineer and chief mechanical engineer. He received his BS in mechanical engineering from Michigan Technological University in 1980 and has worked at Bechtel Power Corporation and Gates Learjet Corporation. Bernard F. Bentgen: vice president operations Marinette Marine Corporation is a 1978 graduate of the University of Michigan School of Naval Architecture and Marine Engineering. His experience has included seven years with General Dynamics Quincy Shipbuilding Division as production engineer test engineer naval architect and engineering supervisor. He has been employed by Marinette Marine Corporation for the past eight years initially as chief naval architect and subsequently as product development manager and vice president of marketing. He is currently vice president of operations and has been involved in Marinette Marine's WLB design effort from its inception. Cdr. Robert E. Williams: USCG (Ret.) served the U.S. Coast Guard for over 39 years in both military and civilian capacities. He graduated from the Coast Guard Academy in 1945 and MIT in 1953. Sea duty on board nine cutters included deck and engineering assignments in two 180-foot buoy tenders engineer officer of high endurance cutters Spencer and Humboldt and the icebreaker Eastwind executive officer and commanding officer of Men

In early 1990, the U.S. Coast Guard embarked on a major program to replace its fifty‐year‐old seagoing buoy tender fleet by requesting proposals for designs that would meet the Circular of Requirements (COR) for the replacement cutter. Subsequently, three shipyards were awarded contracts to develop contract designs and specifications for the vessel. On 28 January 1993, Marinette Marine Corporation (MMC) was awarded a contract for construction of the Juniper, the lead ship of the new class of Coast Guard seagoing buoy tenders. From even a cursory examination of the COR, while buoy tending remains the Juniper's primary mission, she will serve as a multi‐mission vessel capable of recovering spilled oil, performing icebreaking, servicing fixed stations and other vessels with fuel, water and cargo, as well as conducting search and rescue and law enforcement operations. This paper lists the requirements and describes the resulting successful design that meets these requirements and has been designated the Juniper class by the U.S. Coast Guard. © 1994 by the American Society of Naval Engineers

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AN OVERVIEW OF IN-SITU AIR SPARGING

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GROUND WATER MONITORING AND REMEDIATION 1993年第4期13卷 127-135页

作者： JOHNSON, RL JOHNSON, PC MCWHORTER, DB HINCHEE, RE GOODMAN, I Dr. Richard L. Johnson is an associate professor in the Department of Environmental Science and Engineering at the Oregon Graduate Institute (P.O. Box 91000 Portland OR 97291). He is also the director of the OGI Center for Groundwater Research and the OGI Large Experimental Aquifer Program. Dr. Paul C. Johnson is a senior research engineer at Shell Development Co. (Westhollow Research Center P.O. Box 1380 Houston TX 77251). Dr. David B. McWhorter is a professor in the Department of Agricultural and Chemical Engineering at Colorado State University (Engineering Research Center Foothills Campus Fort Collins CO 80523). Dr. Robert Hinchee is a research leader in the Environmental Technology Department at Battelle Memorial Institute (505 King Ave. Columbus OH 43201). Iris Goodman is an environmental scientist with the Advanced Monitoring Systems Division at the U.S. EPA Environmental Monitoring Systems Laboratory (P.O. Box 93478 Las Vegas NV 89192).

In situ air sparging (IAS) is becoming a widely used technology for remediating sites contaminated by volatile organic materials such as petroleum hydrocarbons. Published data indicate that the injection of air into subsurface water saturated areas coupled with soil vapor extraction (SVE) can increase removal rates in comparison to SVE alone for cases where hydrocarbons are distributed within the water saturated zone. However, the technology is still in its infancy and has not been subject to adequate research, nor have adequate monitoring methods been employed or even developed. Consequently, most IAS applications are, designed, operated, and monitored based upon the experience of the individual practitioner. The use of in situ air sparging poses risks not generally associated with most practiced remedial technologies: air injection can enhance the undesirable off-site migration of vapors and ground water contamination plumes. Migration of previously immobile liquid hydrocarbons con also be induced. Thus, them is an added incentive to fully understand this technology prior to application. This overview of the current state of the practice of air sparging is a review of available published literature, consultation with practitioners, a range of unpublished data reports, as well as theoretical considerations. Potential strengths and weaknesses of the technology are discussed and recommendations for future investigations given.

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Preferences for Decision‐Making Autonomy

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Image: the Journal of Nursing Scholarship 1993年第4期25卷 339-344页

作者： Blegen, Mary A. Goode, Colleen Johnson, Marion Maas, Meridean Chen, Lily Moorhead, Sue Mary A. Blegen RN PhD Gamma is Associate Professor University of Iowa College of Nursing. Colleen Coode RN MS Gamma is Associate Director of Nursing at the University of Iowa Hospitals and Clinics/ Interim Director of Nursing Iowa City Iowa. Marion Johnson RN PhD Gamma is Associate Professor University of Iowa College of Nursing. Meridean Maas RN PhD FAAN Gamma is Associate Professor of Nursing University of Iowa College of Nursing. Lily Chen RN MA Gamma is staff nurse at the University of Iowa Hospitals and Clinics Iowa City Iowa. Sue Moorhead RN PhD Gamma is a recent graduate of the doctoral program at the University of Iowa College of Nursing. The authors wish to acknowledge the valuable assistance of the following research team members: Joanne McCloskey Judy Anderson-Bruner Lisa Finn Vicki lbarra and Carol Winter. This study was supported in part by a grant from the Office for Nursing Research Development and Utilization University of Iowa. Correspondence to Dr. Blegen at University of Iowa 336 Nursing Building Iowa City IA 52242.

Nurses' lack of autonomy has been identified as a leading cause of job dissatisfaction, but attempts to increase satisfaction by increasing autonomy have not always been successful. This survey of 356 randomly selected staff nurses and 130 head nurses from 16 hospitals extends previous work by identifying the preferred level of involvement in 21 patient care and 21 unit operation decisions. Staff nurses agreed on 60 percent of the decisions and, in general, preferred independent decision‐making for patient care decisions and shared decision‐making for unit operations. Head nurses indicated that staff nurses should have a higher level of autonomy than the staff nurses indicated for themselves. Copyright © 1993, Wiley Blackwell. All rights reserved

关键词： autonomy staff nurses

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BEST VALUE CONTRACTING

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NAVAL ENGINEERS JOURNAL 1993年第6期105卷 59-68页

作者： ZACKS, MR DEMAS, TA Michael R. Zacks:attended Massachusetts Maritime Academy and received his bachelor of science in marine engineering degree in 1985. He is currently enrolled at the University of Maryland where he is working on a master's degree in general administration/financial management. Mr. Zacks is the assistant project manager for the Coastal Living Marine Resource Vessels in the National Oceanic Atmospheric Administration's (NOAA) Fleet Modernization and Replacement Program Office. His current responsibilities encompass providing technical and management support for the procurement construction testing and delivery of these ships. His previous jobs included working for the Naval Sea Systems Command's (NavSea) Combat Support Ocean Research and Surveillance Program Office (PMS 383) Ship Design and Engineering Directorate's Surface Launched Weapons Branch (56W3) and Research Analysis and Management (RAM) Corporation. Thomas A. Demas:received a bachelor of science degree in civil engineering from Old Dominion University and a master's degree in business administration from Averett College. He is a recent graduate from the NavSea Commander's Development Program (CDP). Mr. Demas is the assistant project manager for the AGOR-23 24 25 and National Oceanic and Atmospheric Administration's oceanographic research ships in NavSea's Combat Support Ocean Research and Surveillance Program Office. While participating in the CDP Mr. Demas worked in the following offices: OpNav OP321 as a FMP action officer CincPacFlt N43 as a maintenance officer ASN(RD&A) as director of maintenance and modernization and NavSea 56W14 as a branch head of closures and outfitting branch. Prior to the CDP he held a position with the Gas Turbine Surface Combatant Program Office as the West Coast project manager for DD-963 class destroyers. Before working for NavSea Mr. Demas was employed as a junior engineer with TRACOR and C-CUBED Corporation. His responsibilities included providing general systems engineering support to NavSea and the Nava

The best value concept is based on making decisions on an offeror's technical competence, proven past performance, management capability, life-cycle costs, and product quality. The evaluation of these factors should be structured to ensure consideration is given to determine the overall benefit associated with the offered price. This paper advocates using the best value concept as the method for developing and rating proposal evaluation factors for the procurement of new ships. It discusses methods for establishing evaluation factors, developing standards to evaluate, associated documentation, and weighting and scoring the factors. The information for this paper was obtained from personal interviews, hands-on experience developing and evaluating best value proposals, and documentation research. If properly executed, the best value concept will enable the Navy to improve ships while reducing operating costs.

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EPAS APPROACH TO VADOSE ZONE MONITORING AT RCRA FACILITIES

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GROUND WATER MONITORING AND REMEDIATION 1993年第1期13卷 151-158页

作者： DURANT, ND MYERS, VB ECCLES, LA Washington D.C. 20460) has worked as an environmental scientist in the RCRA corrective action program at EPA since 1989. After graduating from Colgate University in 1987 Durant worked for GeoTrans Inc. conducting hydrogeologic investigations at numerous waste disposal sites throughout the northeastern United States. At present Durant is pursuing an M.S. degree in environmental science from The Johns Hopkins University. His research is focused on enhancing in situ biodegradation of aromatic organic compounds in the subsurface. Washington D. C. 20460) graduated from The Johns Hopkins University in 1972 with a B.A. degree in natural sciences. Myers received a Ph.D. in oceanography from Florida State University in 1977. During 1978 he held a post doctoral fellowship at University of Florida in the Department of Environmental Engineering and Science. From 1979 to 1983 Myers was employed by the Florida Department of Environmental Regulation where he worked on environmental restoration projects. Since 1984 Myers has worked at EPA managing RCRA ground water monitoring and corrective action programs. Lawrence A. Eccles (U.S. Environmental Protection Agency Environmental Monitoring Systems Laboratory P.O. Box 93478 Las Vegas NV 89193–3478) is a hydrologist with the EPA Environmental Monitoring Systems Research Laboratory in Las Vegas Nevada. Eccles is responsible for the development of vadose zone and in situ monitoring techniques and guidelines. After graduating from Monmouth College with a B.S. degree in chemistry Eccles performed graduate work in chemical engineering at New Mexico State University. He received formal training in hydrology in 1969 from the U.S. Geological Survey in Denver and worked with that agency before joining EPA at Las Vegas in 1984. One of his co-authored articles was chosen for the Best Paper Award by the journal Ground Water in 1975 and another was the subject of a cover story for Water Well Journal in 1977.

The U.S. Environmental Protection Agency (EPA) recently proposed to amend federal regulations to require vadose zone monitoring at certain hazardous waste facilities. To support this proposal, EPA evaluated previous policy on vadose zone monitoring and examined advances in vadose zone monitoring technology. Changes in EPA vadose zone monitoring policy were driven by demonstrated advances in the available monitoring technology and improvements in understanding of vadose zone processes. When used under the appropriate conditions, currently available direct and indirect monitoring methods can effectively detect contamination that may leak from hazardous waste facilities into the vadose zone. Direct techniques examined include soil-core monitoring and soil-pore liquid monitoring. Indirect techniques examined include soil-gas monitoring, neutron moderation, complex resistivity, ground-penetrating radar, and electrical resistivity. Properly designed vadose zone monitoring networks can act as a complement to saturated zone monitoring networks at numerous hazardous waste facilities. At certain facilities, particularly those in arid climates where the saturated zone is relatively deep, effective vadose zone monitoring may allow a reduction in the scope of saturated zone monitoring programs.

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UNDERWATER INSPECTION FOR WELDING AND OVERHAUL

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NAVAL ENGINEERS JOURNAL 1993年第5期105卷 37-42页

作者： MITTLEMAN, J SWAN, L John Mittleman:is a mechanical engineer at the Naval Surface Warfare Center Dahlgren Division Coastal Systems Station in Panama City Florida. His Primary Responsibilities are in the development of underwater nondestructive testing equipment for use by fleet divers and inspectors. He also performs research in the characterization of metal microstructure through ultrasonic scattering measurements. Mr. Mittleman received his BS from Cornell University in 1969 and science master's in ocean engineering from the Massachusetts Institute of Technology in 1970. His research currently supports doctoral studies with Iowa State University. Mr. Mittleman received the American Society of Naval Engineer's Solberg Award in 1981 for his contributions to underwater ship hull inspection. Mr. Mittleman is a member of ASNE ASNT ASTM IoD Sigma Xi Tau Beta Pi and Phi Kappa Phi. Lisa Swan:is a mechanical engineer at the Naval Surface Warfare Center in Panama City Florida. She is involved in nondestructive testing engineering primarily in the underwater arena. Ms. Swan holds a bachelor of science in materials engineering from North Carolina State University. She is a graduate of the Federal Women's Executive Leadership Program. Ms. Swan is a member of ASNT.

Significant progress has been made in making underwater ultrasonic thickness gauging and magnetic particle inspections available to the fleet. Under sponsorship from the Naval Sea Systems Command, Director of Ocean Engineering, Underwater Ship Husbandry Division (NavSea 00C5), the Coastal Systems Station has developed complete hardware packages supporting these two nondestructive test methods, and has introduced them to military inspectors at a shore intermediate maintenance activity, a destroyer tender, and a naval shipyard. Performance trials conducted prior to taking the systems to the field have been accepted by NavSea, Ships' Concepts Group, Materials Subgroup, Metals Division (NavSea 5142) as evidence that these inspections can reliably be performed underwater. Avenues for certifying specially trained divers and inspectors are being developed;for the first time the Navy will have all of the elements in place for underwater inspections satisfying the requirements of Mil-Std-271 (Requirements for Nondestructive Testing Methods) and the Naval Ships' Technical Manual Chapter 074. Underwater ultrasonic thickness gauging has also been slated for use in the fleet, as data from laboratory and field trials have consistently shown that reliable results can be obtained by a team comprising a certified topside inspector and a diver. In tests performed at the Ship Repair Facility (SRF), Yokosuka, underwater readings were compared to those taken in dry dock by SRF inspectors, and independently by contract inspectors. On the basis of approximately 800 locations, differences between the data sets were found to be randomly distributed, with a standard deviation on the order of 0.02''. This level of accuracy is largely sufficient to distinguish plate which will need replacement during overhaul, or plate which is thick enough to weld on.

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CIRCULAR OVERMODED WAVE-GUIDE FOR SHIPBOARD USE

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NAVAL ENGINEERS JOURNAL 1993年第2期105卷 39-52页

作者： HUTING, WA WARREN, JW GARNER, PN KRILL, JA William A. Huting:received the B.S.E. degree in electrical engineering from Duke University in 1981 the M.S.E.E. degree from the Georgia Institute of Technology in 1982 and the Ph.D. degree in electrical engineering (electrophysics) from the University of Maryland in 1989. From September 1981 to December 1983 he was a graduate teaching assistant with Georgia Tech. Since January 1984 he has been with The Johns Hopkins University Applied Physics Laboratory where he has principally been involved with the development of circular overmoded waveguides and tapered waveguide transitions for use in naval radar systems. Dr. Huting is a member of the Institute of Electrical and Electronics Engineers. Jeffery W. Warren:received a B.S. degree in 1982 and an M.S. degree in 1984 both in electrical engineering from the University of South Carolina. His thesis research evaluated electro-optical measurements of surface charging of insulators in low-frequency fields. He joined The Johns Hopkins University Applied Physics Laboratory in 1984. Mr. Warren's activities include development and testing of electro-optical systems and the development of high-power low-loss overmoded waveguides. Mr. Warren is a member of the Institute of Electrical and Electronics Engineers. Paul N. Garner: Jr. received the B.S. degree in mathematics and the B.S. degree in mechanical engineering from the University of Maryland in 1973 and 1980 respectively and the M.B.A. degree from the Florida Institute of Technology in 1984. Since 1987 he has been involved with the Cooperative Engagement Capability Program as the lead mechanical engineer and since 1990 he has been with The Johns Hopkins University Applied Physics Laboratory where he is now a member of the Senior Professional Staff. Jerry A. Krill:received the B.S.E.E. and M.S.E.E. degrees from Michigan State University in 1973 and 1974 respectively and a Ph.D. in electrical engineering (electrophysics) from the University of Maryland in 1978. From 1973 to the present he has been with The Johns

Several future Navy combat systems under development require efficient delivery of high power microwave energy from remote transmitters to array antennas. To achieve this requirement, a family of microwave components has been developed and tested. Progress is described in the design and testing of an overmoded circular TE01 mode waveguide applicable to special shipboard needs. Because such a waveguide had originally been developed for low power millimeter band trunkline communications between cities, new theoretical, design, and fabrication techniques had to be developed to meet our specific performance requirements. Moreover, in order to fulfill the combat system requirements, the waveguide would have to withstand harsh military requirements. Over several years the obstacles to the application of overmoded technology to Navy combat systems have been systematically eliminated. The effort has resulted in the invention of several new components, the development and validation of a new computer aided design package, and the implementation of new microwave measurement techniques. The first application of an overmoded waveguide to a combat system element was recently achieved in the successful demonstration of the prototype Cooperative Engagement Capability, and steps toward a production military version of the waveguide have been initiated.

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Researching and evaluating model geriatric mental health programs part III: Statistical analysis issues

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Archives of Psychiatric Nursing 1992年第3期6卷 151-162页

作者： Russell, Daniel W. Buckwalter, Kathleen C. Department of Psychology the Graduate Program in Hospital and Health Administration University of Iowa United States Office of Nursing Research Development and Utilization College of Nursing University of lowa United States

The third and final article in this three-part series on researching and evaluating geriatric mental health programs focuses on statistical analysis issues. Analysis of data from experimental and quasi-experimental studies is discussed involving inferential statistical techniques such as t test, analysis of variance, chi-square, and analysis of covariance, and interrupted time series techniques. © 1992.

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CAD CAM GOES TO SEA - THE SAAR-5 DESIGN AND CONSTRUCTION

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NAVAL ENGINEERS JOURNAL 1992年第3期104卷 148-155页

作者： LINDGREN, JR SOLITARIO, WA MOORE, AP STREIFF, MA John R. Lindgren Jr:. is vice president for engineering at Ingalls Shipbuilding Inc. a Division of Litton Industries in Pascagoula Miss. He joined Ingalls in 1958 and has held various positions in the Engineering Division and participated in the design of numerous merchant ships drill rigs submarines and surface combatants and auxiliary support ships. Mr. Lindgren is a 1958 graduate of the University of Southwest Louisiana. His degree is in mechanical engineering and he is also a licensed professional engineer. William A. Solitario:is the director of advanced technology at Ingalls Shipbuilding Inc. in Pascagoula Miss. He received his B.S. degree in chemical engineering from the City University of New York and has 28 years experience in marine engineering and design. His current responsibilities include the direction of Ingalls' IRAD programs and several Navy-funded R&D programs to improve ship's performance and reduce ship's operating costs. He is a member of the Society of Naval Architects and Marine Engineers and past chairman of the Gulf Section East Area. Arnold P. Moore:is the director design engineering at Ingalls Shipbuilding where he is responsible for all new construction design and engineering activities. Prior to promotion to his current position Mr. Moore served as chief naval architect at Ingalls. He has 24 years experience in ship design construction and repair. Mr. Moore holds the professional degree of ocean engineer as well as a master's degree in naval architecture and marine engineering from MIT. He also earned a bachelor's degree in naval science from the U.S. Naval Academy and is a registered professional engineer. Mr. Moore served as an engineering duty officer in the U.S. Navy and is currently a captain in the Naval Reserve. He is a past chairman of the Gulf Section of the Society of Naval Architects and Marine Engineers and a member of the American Society of Naval Engineers and Sigma Xi. Michel A. Streiff:is the manager of CAD/CAM applications at Ingalls Shipbuilding Inc. His

The SA'AR-5 Corvette program is the first major warship construction to be entirely accomplished using a 3-dimensional, interference checked computer based design. This paper discusses the organization and approach used to create the design models which form the basis for interference checking as well as the source of extracted production data. The design or product model is the nucleus of the computer data base that defines the configuration of the entire ship. The data base includes geometry, weight, and material, as well as production control data. The ability of the computer to link such diverse information is the key to maintaining configuration control during the course of the design and construction. The ease with which formatted manufacturing data (both N.C. fabrication and installation) can be extracted enables the preparation of detailed packages containing the desired geometry as well as the associated material and sequencing data, thus assuring the producibility of the design. The SA'AR-5 design is CAD/CAM's state of the art in U.S. shipbuilding.

关键词： Warships

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