检索结果-内蒙古大学图书馆

Recapitalizing the Navy through optimized manning and improved reliability

NAVAL ENGINEERS JOURNAL 1998年第6期110卷 61-72页

作者： Anderson, DE Malone, TB Baker, CC Mr. David E. Anderson:is a Navel Engineer with the Naval Sea Systems Command where he is currently assigmd to the HumanSystems Integration branch. Mr Anderson has a Bachelor of Science degree an Environmental Engineering from Flurida Technological University and a Master's in Environmental Engiwering from the University of Central Flurida. He currentEy is an HSI manager for a number oflvay R&D and skig acquisition efforts. Dr. Thomas B. Malone:received a Ph.D. in Experimental Psychology from Fordham University in 1964. He is President of Carlow International Incorporated an organization dedicated to human factors research and development with emphasis an mantime systems. He has directed over 350 programs and projects in his 33 year career and is responsible for overall management of all contract programs within the Corporation. He is a Past President of the Human Factors and E r g m i c s Society (HFES) of which he is a Fellow. He is also a Fellow of the Washington Academy of Sciences He was selected as a member of the N A S Space Sciences Technical Advisuiy Committee on Technoloo Requirements for Human Performance on Long Duration Space Missions in 2989 and 90. He was elected as the First Chair of the Systems Development Technical Group of the HFES. Dr Malone is currently managing eflorts to devehp and auto- mate standardized processes for canducting human systems integration (HSI) in the military weapon systems acquisition process and fov developing automated tools to facilitate fledormance of specific steps in the HSI process. Dr Malone also is currently occupied in applying human engineering to the DD 21 and is serving as the Chair ofthe System ManninglHuman Perfomzance Working IPT under the DD 21 ManninglHSI IPT chaired ty PMS 500M. Mr. Clifford Baker:has over 20 years experience in developing and applying human factors technology to complex systems. He holds a masters degree in psychology with a specialization in human factors engineering and he is a Board Certified Human Factors Engineering Profesional

Reduced manning is the process (and the result) of removing human functions from a system while retaining or improving system operability and effectiveness. Reliability and maintainability characterize a system's operability and effectiveness. Reduced manning impacts system reliability by changing the characteristics of (1) human error associated with system operation and maintenance, (2) time to repair failed components, and (3) mean-time-between-failures (MBTF) in a reduced manning environment. Simply reducing manning without compensating for system dependence on human involvement generally has a negative impact on system maintainability. Methods to address this include (1) human-system integration design of maintenance interfaces and (2) design of operations activities that are closely related to device failures. After demonstrating reliable performance through testing and operation, ship commanders can be assured that fewer people can effectively operate and maintain Navy ships and systems.

关键词： Naval vessels

来源：评论

学校读者我要写书评

暂无评论

The Microstructure and Electromigration Performance of Damascene-Fabricated Aluminum Interconnects

引用

MRS Online Proceedings Library 1997年第1期473卷 217-222页

作者： Paul R. Besser John E. Sanchez David P. Fields Shekhar Pramanick Kashmir Sahota Ad vaneed Process Development Advanced Micro Devices Inc. Sunnyvale Materials Science Department University of Michigan Ann Arbor TexSEM Laboratories Inc. Provo Technology Reliability Development Advanced Micro Devices Sunnyvale

Novel metal deposition stack and damascene processing methods have been used to fabricate electrically isolated parallel arrays of 1.0 µm deep aluminum-alloy interconnect trenches varying in width from 0.5 µm to 16 µm. The grain size and crystallographic texture of the Al in these trenches has been characterized using transmission electron microscopy (TEM) and local electron backscattered diffraction (EBSD), respectively. Narrow lines (0.5 and 1.0 µm wide) have a bamboo microstructure, intermediate widths (2.0 µm wide) are nearly bamboo, and wide lines (4.0 µm and wider) are polycrystalline. The <111> texture of the lines degrades with decreasing linewidth. A secondary <100> component is demonstrated and its origin proposed. The electromigration reliability of the narrow damascene Al lines was measured, and the observed enhancement of damascene Al interconnects compared to conventionally-fabricated Al interconnects is correlated with the microstructure.

关键词：

来源：评论

学校读者我要写书评

暂无评论

IC implementation challenges of a 2.4 GHz wireless LAN chipset

引用

Journal of VLSI Signal processing Systems for Signal, Image, and Video technology 1996年第2-3期13卷 143-163页

作者： Chian, M. Croft, G. Jost, S. Landy, P. Myers, B. Prentice, J. Schultz, Doug Harris Semiconductor Melbourne FL 32901 United States Integrated RF Solutions Palm Bay FL 32909 United States EE/CP Department FIT Department of Design Systems Advanced Process Development Group Mixed Signal Product Development Group Florida Institute of Technology

The recent introduction of IC technologies offering high frequency transistors with ft greater than 10 GHz has opened new opportunities for higher integration of wireless communication systems. Fast silicon IC devices...

The recent introduction of IC technologies offering high frequency transistors with f_t greater than 10 GHz has opened new opportunities for higher integration of wireless communication systems. Fast silicon IC devices make possible the integration of many RF subsystems on a single die and offer a total solution to mixed frequency (low frequency and RF) and mixed signal (analog and digital) systems. This paper describes IC implementation challenges of a 2.4 GHz wireless LAN chipset developed at Harris Semiconductor. © 1996 Kluwer Academic Publishers.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Measuring system for diffusion length of photoactive compound in post-exposure bake process

引用

ELECTRONICS AND COMMUNICATIONS IN JAPAN PART II-ELECTRONICS 1996年第9期79卷 70-77页

作者： Sekiguchi, A Sensu, Y Matsuzawa, T Minami, Y Lithotech Japan Corporation Kawaguchi Japan 332 Received his B.S. degree from Shibaura Institute of Technology in 1982 and joined Japan Chemitech in 1983 where he worked on the development of an electroless Au plating. He joined Sumitomo GCA in 1985 where he was engaged in the development of photoresist application systems and the development of analysis system for photoresist processing. He is currently with Lithotech Japan Corporation. He is a member of the Japan Society of Applied Physics. Graduated from the Aircraft Maintenance Division of Nakanihon Aeronautics in 1985 and joined Sumisho Electronic Systems Inc. the same year. Following the merger of Sumisho Electronic Systems with Sumitomo G.C.A. in 1986 he was transferred to the latter where he worked on the development of an automatic end-point detector as well as analysis systems for development processes and a resist profile simulator. Mr. Sensu has been with Lithotech Japan Corporation since 1993. Received his M.S. degree in Chemical Engineering from Tohoku University in 1975 and joined Central Research Laboratory of Hitachi Ltd. the same year. He received his Ph.D. degree in 1985 from Tohoku University. He was engaged in the development of advanced photolithography processes and simulation technologies. In 1988 he resigned from Hitachi to found Technofront Inc. and then Lithotech Japan Corporation in 1993. Dr. Matsuzawa is a member of the Japan Chemical Society the Japan Society of Applied Physics and IEEE. Received his B.S. degree from Tokyo Denki University in 1979 and then joined Process System Co. There he was involved in field service for GCA Co. USA. He joined Sumitomo GCA Co. in 1983 where he was engaged in the development of photoresist coating and development systems and systems to detect the end-point of photoresist development. He also developed a photoresist development analysis system. He is currently the company executive Lithotech Japan Corporation.

The post-exposure bake (FEB) characteristics of a photoresist can be examined with a method that estimates the diffusion length of a photoactive compound (PAC) in the photoresist FEB process. Diffusion lengths are estimated with development rate measurement equipment using FEB conditions at temperatures of 50 degrees C, 100 degrees C, 110 degrees C, and 120 degrees C. An ultrahigh-resolution i-line photoresist THMR-iP3000 is used in the research. The obtained values are input into 61 photolithography simulator PROLITH/2 to calculate photoresist profiles. Using a 365-nm wavelength, 0.5 NA, and 0.6-coherence factor conditions, resist profiles for a 0.4-mu m line space feature are calculated with varied focus. The simulated results are compared with SEM observations to evaluate the validity of the estimation method;they are found to be substantially consistent with experimental results, thus confirming the validity of the method.

关键词： photoresist development rate diffusion length development parameter focus latitude profile simulation

来源：评论

学校读者我要写书评

暂无评论

ACCURATE DESIGN OF COMPACT FORWARD-COUPLED MICROSTRIP FILTERS USING AN INTEGRAL-EQUATION FIELD SOLVER

引用

INTERNATIONAL JOURNAL OF MICROWAVE AND MILLIMETER-WAVE COMPUTER-AIDED ENGINEERING 1995年第5期5卷 324-330页

作者： ZHANG, DW LIANG, GC SHIH, CF JOHANSSON, ME WITHERS, RS Conductus Inc. 969 W. Maude Avenue Sunnyvale California 94086 Mane E. Johansson received the BS degree in physics from University of Linkoping Sweden in 1986 where she is now finishing her graduate courses. She joined Conductus Inc. in July 1992. She is currently section head for the device processing group at Conductus. This includes responsibility for process development and production of microwave and MRI/NMR devices and laser deposition of YBCO thin films. She has developed reproducible wet- and dry-etching techniques and passivation methods for processing of these devices. From 1989 to 1991 as a guest researcher at the National Institute of Standards and Technology she developed a process for fabrication of SNS junctions using high temperature superconducting thin films. Ms. Johansson also performed deposition and characterization of these materials. From 1991 to 1992 she was employed at Advanced Fuel Research East Hartford (3 where she was responsible for establishing the processing of YBCO IR-detectors on silicon. Previously she was employed in the microwave technology group at the National Defense Research Institute (FOA) Linkoping Sweden from 1986 to 1989. She developed fabricated and characterized passive microwave devices (based on normal metals).

In this article, we present forward-coupled microstrip filters designed using an integral-equation-based field solver, and fabricated in high-temperature superconducting (HTS) thin films. Two designs were studied, one a nine-pole bandpass filter at 900 MHz with 25-MHz bandwidth, and the other a five-pole bandpass biter at 2 GHz with 24-MHz bandwidth and 10-Ohm resonator characteristic impedance. Both designs were fabricated using YBa2Cu3O7 (YBCO) HTS thin films. Measurements showed excellent agreements with the simulation predictions. For the nine-pole filter design, a measured insertion loss of 0.3 dB, and a measured return loss of 16 dB were achieved in the YBCO filter at 77 K. (C) 1995 John Wiley and Sons, Inc.

关键词： Microwave filters

来源：评论

学校读者我要写书评

暂无评论

Characterization of SiO2 by monoenergetic positron beams

引用

AIP Conference Proceedings 1994年第1期303卷 101-106页

作者： A. Uedono S. Watauchi Y. Ujihira L. Wei S. Tanigawa R. Suzuki H. Ohgaki T. Mikado H. Kametani H. Akiyama Y. Yamaguchi M. Komaru Research Center for Advanced Science and Technology University of Tokyo 4‐6‐1 Komaba Meguro‐ku Tokyo 153 Japan Institute of Materials Science University of Tsukuba Tsukuba Ibaraki 305 Japan Electrotechnical Laboratory 1‐1‐4 Umezono Tsukuba Ibaraki 305 Japan Advanced Process Research Laboratory Mitubishi Electric Corporation 1‐1 Tsukaguchi‐Honmachi Amagasaki Hyogo 661 Japan LSI Research and Development Laboratory Mitubishi Electric Corporation 4‐1 Mizuhara Itami Hyogo 664 Japan

Vacancy‐type defects in silicon‐on‐insulator (SOI) structures fabricated by the separation by implanted oxygen (SIMOX) process were studied by monoenergetic positron beams. From measurements of Doppler broadening profiles of the positron annihilation as a function of incident positron energy, it was found that a dominant defect species in as‐implanted specimens was identified as oxygen‐vacancy complexes. The formation of oxide films in the SOI structure were also studied by a pulsed monoenergetic positron beam.

关键词：

来源：评论

学校读者我要写书评

暂无评论

LASER CLADDING REFURBISHMENT OF CATAPULT TROUGH COVERS

引用

NAVAL ENGINEERS JOURNAL 1993年第6期105卷 69-75页

作者： DENNEY, PE LOWRY, RW Paul E. Denney:has been involved with high-powered laser materials processing for over eight years. Mr. Denney received both his BS and MS degrees in metallurgy from MIT in 1980. He was employed for one year by CF&I Steel of Pueblo Colo. before joining the Naval Research Laboratory in Washington D.C. where he was involved with failure analyses and laser materials processing. From 1985 to 1988 Mr. Denney conducted laser materials processing at the Westinghouse Research and Development Center in Pittsburgh Pa. Since 1988 he has been at the Applied Research Laboratory at Pennsylvania State University (ARL Penn State) where he has assisted in the development of the laser metalworking technology transfer facility (in Johnstown Pa.) and the laser processing group within the ARL Penn State Manufacturing Science Department. Mr. Denney directs laser and other advanced thermal processing programs for the Navy Army and many private industrial sponsors. Robert W. Lowry:graduated from Virginia Polytechnic and State University with BS and MS degrees in metallurgical engineering in 1967. He has worked at the Naval Surface Warfare Center for 30 years and has been involved with laser process technology since 1979. Mr. Lowry has worked in fragmentation studies failure analysis materials testing and been associated with such Navy programs as Vertical Launch Standard Missile Guided Projectile and the In-Service Manufacturing Technology Advisory Group (MTAG) Metals Subcommittee. He has submitted two patent applications in laser processing and is current manager of NSWC's high power laser facility. Current emphasis is on laser welding for missile structures. Mr. Lowry has recently been selected as a participant in the Navy Science Advisory Program (NSAP) as a technical advisor at CinCLantFlt Norfolk for fleet maintenance.

A laser cladding process has been developed and is now in production for the cladding of new aircraft carrier catapult components. The Service Life Extension Program (SLEP) Office of Naval Sea Systems Command (NavSea) suggested that this process be utilized for the refurbishment of catapult tracks. Early experiments were conducted by the Naval Surface Warfare Center in conjunction with the IIT Research Institute. The program was then transitioned to the Applied Research Laboratory, Pennsylvania State University (ARL Penn State) under the sponsorship of the Naval Air Systems Command (NavAir)/Navy MANTECH program, thus providing an effective solution to a NavSea/NavAir interface hardware problem. ARL Penn State was responsible for the production and evaluation of six laser clad aircraft carrier catapult tracks as part of a program sponsored and funded by NavAir Code 5512. Six catapult tracks that had been taken out of service because of excessive wear were laser clad at the Westinghouse Electric Research and development Center (Now ''Science and technology Center'') for ARL Penn State. The composition of the clads was Inconel 625, Stellite 6/Stainless Steel 304, and Ferrelium 255. The tracks were machined and installed on the USS Constellation. Wear measurements were taken for the laser clad tracks and standard tracks ahead and behind the clad tracks. After 7,161 launches, the tracks were removed and returned to ARL Penn State for evaluation. The evaluation indicated that impact damage was observed on one track. No additional defects related to operations were found. Wear data indicated that the wear rate for it was 25%-50% less than non-clad. The results indicated that rejectable tracks (and one piece trough covers) could be successfully laser clad for extended operating life at acceptable costs. With emphasis for the future on a more affordable Navy, the need for viable refurbishment processes will be necessary for extending life and performance for the 21st century

关键词：

来源：评论

学校读者我要写书评

暂无评论

THE AMERICAN SOCIETY OF NAVAL ENGINEERS takes great pleasure in presenting: THE GOLD MEDAL AWARD FOR 1991

引用

Naval Engineers Journal 1992年第4期104卷

作者： CAPTAIN CLARK GRAHAM USN Captain Clark “Corky” Graham throughout his naval career has been a major force in the pursuit of a technology-based vision of the Navy of the future and the development of an engineering bridge to turn the vision into a reality. After an already distinguished naval career he was assigned to NavSea as Ship Design Manager and Technical Director for the Navy's newest destroyer the USSArleigh Burke(DDG-51). He was a major contributor to the many technical innovations that made this ship one of the most effective combatants in the Fleet. Upon return to MIT as a teacher and head of the Navy Program he continued to espouse the virtues of systems engineering instilling in his students the need to continually question old paradigms and to examine and assess the merits of new and innovative approaches to ship design. During his tour as Commander of the David Taylor Research Center he established a broad-based strategic planning process for exploring technology options and issues for the fleet of the future. He stimulated the Center's technologists and managers to challenge current paradigms and to make ships and ship systems more affordable without sacrifice in mission capabilities. He provided a collaborative systems oriented culture that addressed long range fleet operational and affordability goals. This led to the development of a battleforce design incorporating a multi-purpose modular ship concept called Carrier of Large Objects (CLO) double-hull structural concepts and an emphasis on technologies and processes to enhance the affordability of future ships. He also waged a successful campaign to convince higher authority of the merits of an integrated electric drive for ships. This ultimately led to his present assignment as Manager of NavSea's Advanced Surface Ship Machinery Program. Capt. Graham has laid a technological foundation for the Navy to meet the challenges of the future in a world of profound geopolitical change. Perhaps of even greater importance he articulated his ideas and philosophy to a

来源：评论

学校读者我要写书评

暂无评论

STRAIN SELECTION, MEDIUM development AND SCALE-UP OF TOYOCAMYCIN PRODUCTION BY STREPTOMYCES-CHRESTOMYCETICUS

引用

BIOprocess ENGINEERING 1990年第4期5卷 143-153页

作者： FLICKINGER, MC GREENSTEIN, M BREMMON, C CONLIN, J Frederick USA Institute for Advanced Studies in Biological Process Technology 240 Gortner Laboratories University of Minnesota St. Paul Lederle Laboratories American Cyanamid Co. New York Pharmaceutical Research and Development Division Bristol Myers Co. Evansville USA

The batch productivity (QTM) of the production of the nucleoside antibiotic toyocamycin (TM) by Streptomyces chrestomyceticus was increased ten-fold by selection of a UV generated mutant, optimization of pH, increasing incubation temperature from ***.C to ***.C, and addition of soy oil. Initial high oxygen transfer rates stimulated QTM maxima two-fold. Antibiotic production by the mutant strain, U190, however, appeared more shear sensitive than the parent culture FCRF 341 with maximum antibiotic titer being inversely related to impellor tip velocity, Tv. For this reason, scale-up could not be done at constant P/V or constant volumetric oxygen transer. Instead, programming of impellar speed was evaluated in order to maintain optimal impeller tip velocity during scale-up. It was found that a low constant Tv maintained in scale up in geometrically similar vessels was most beneficial for duplication of optimal antibiotic productivity, QTM. Pilot fermentations (120 dm3 scale) were used to determine coefficients of QTM variation from oxygen uptake rate (OUR) and total CO2 evolution data for monitoring of QTM variation during scale-up to the 12,000 dm3 scale. This technique allowed for on-line prediction of antibiotic titer and QTM from fermentor exhaust gas data.

关键词：

来源：评论

学校读者我要写书评

暂无评论

A study of flame arrestors in piping systems. Even officially approved flame arrestors must be used only under the exact conditions for which they were tested and approved

引用

process Safety Progress 1983年第1期2卷 5-12页

作者： G. L. Broschka I. Ginsburgh R. A. Mancini R. G. Will Amoco Oil Co. Naperville Ill. Gregory L. Broschka is currently a Specialist in Industry Supply Analysis with the Standard Oil Company (Indiana). He holds an M.S. degree in Chemical Engineering from Northwestern University and has been employed by Standard or its subsidiary companies for 8 years. While he was with the Amoco Oil Company Research Department he conducted research in flammability and flame propagation synthetic fuels and leak detection technology. Irwin Ginsburgh is a Senior Research Associate with the Amoco Oil Company Research and Development Department with whom he has been employed for 31 years. He holds a PhD in Physics from Rutgers University and has conducted extensive research in gas phase detonations and static electricity. Current research interests include unconfined vapor cloud explosions vapor recovery and advanced energy sources. He holds 42 patents has been awarded four IR 100 awards and has published numerous articles and one book. Robert A. Mancini is a Research Supervisor and Process Safety Specialist with the Amoco Oil Company Research and Development Department. He holds a PhD in Chemical Engineering from Northwestern University and has conducted research in reaction kinetics process safety environmental conservation and probability analysis related to process safety and equipment reliability. He is a member of the Static Electricity and Fire Safety Engineering Subcommittees of the American Petroleum Institute Committee on Safety and Fire Protection and is a member of the NFPA Explosion Protection Systems Technical Committee. Robert G. Will is Director of the Engineering and Environmental Research Division of Amoco Oil Company Research and Development Department and has been employed by Amoco Oil or its subsidiary companies for 29 years. He is a mechanical engineering graduate from Purdue University and has conducted research in oil spill control process safety and burner design. He holds five patents has been awarded an IR 100 award and is a Registered Profession

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：