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MK 41 VERTICAL LAUNCHING system FLEET APPLICATION

NAVAL ENGINEERS JOURNAL 1985年第4期97卷 174-184页

作者： KULESZ, JJ USN The Author is currently program manager for the MK 41 vertical launching system (PMS 410). A native of Pittsburgh Pa he was commissioned in June 1961 at the United States Naval Academy. After serving as missile handling and third divirrion officer on the USS Little Rock until September 1963 he attended the United States Naval Destroyer School. In August 1945 he assumed duties as weapons officer for USS De Haven. Captain Kulesz received the degree of master of science in electrical engineering in 1969 from the Naval Postgraduate School in Monterey and the graduate of the command and staff course at the Naval War College of the National War College of the Republic of Germany. He served as commanding officer on the USS Conflict and as deputy combat systems engineer for the AEGIS project at Naval Sea Systems Command. Prior to assignment as program manager at PMS 410 Captain Kulesz was the AEGIS department head at the Naval Ship Weapons Systems Engineering Station Pt. Hueneme.

The unique physical construction and launch control system architecture of the MK 41 vertical launching system (VLS) makes it particularly adaptable to a variety of missiles and ship classes. The U.S. Navy began installing the MK 41 VLS in deep draft combatants early this year. system attributes such as increased firepower, reduced manning and training requirements, high reliability and low maintainability indicate the MK 41 will best answer the fleet's requirement for highly capable launchers at minimum life cycle cost. Several launcher variants can be readily configured from MK 41 launcher components. Two lengths have been developed and proved during land based and at-sea tests. These MK 41 derivatives retain all the benefits of the VLS while permitting a tailored defense capability throughout the surface fleet.

关键词： WARSHIPS

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OUT-OF-PRODUCTION MICRO-ELECTRONICS - AN ACHILLES HEEL OF DEFENSE systemS

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NAVAL ENGINEERS JOURNAL 1988年第5期100卷 69-72页

作者： MACKENZIE, CM WOOTTEN, R HOY, K NEELY, J KOSCO, D SMITH, W C. Malcolm Mackenzie:is the Materials and Parts Availability Control program manager at U.S. Army Laboratory Command Adelphi Md. Mr. Mackenzie has a B.S. degree in mechanical engineering from Northwestern University an M.S. degree in the same field from the University of Michigan and an M.B.A. from East Texas State University. Richard Wootten:is project officer of the U.S. Army Material Command's Materials and Parts Availability Control Information Data System Project Adelphi Md. Mr. Wootten holds an associate's degree in mechanical engineering from Northern Virginia Community College and a Bachelor of Science in Electronics Engineering from The University of Alabama. Kevin Hoy:is manager of the Microelectronics Obsolescence Management Program at the Naval Avionics Center Indianapolis. Mr. Hoy holds both bachelor and master of science degrees in mathematics from Purdue University. James Neely:is leader of the Materials Management Team Industrial Materials Division in the Directorate of Manufacturing Air Force Systems Command Dayton Ohio. Mr. Neely holds a bachelor's degree in political science from The University of Georgia and a master of science degree in public administration from The University of Missouri. Don Kosco:is an electronics engineer currently involved with introducing new technologies into weapons systems. He is in the Directorate of Reliability Maintainability and Technology Policy HQ Air Force Logistics Command Dayton Ohio. Mr. Kosco holds a bachelor of engineering degree from Widener University a master's in systems engineering from The Air Force Institute of Technology and an MBA from the University of Texas at San Antonio. William Smith:is head of the Plans Branch in the Office of Policy and Plans Defense Electronics Supply Center (DESC) Dayton Ohio. He was for many years manager ofDESC's Diminishing Manufacturing Sources (DMS) Program. Mr. Smith holds a bachelor of arts degree in political science from Indiana University.

Both the timely manufacture of defense systems and their subsequent on-line operability depend upon the availability of component parts. The growing problem of microelectronic component nonavailability is casting a shadow over logistics support to these systems. This paper will discuss the causes of the problem and provide some examples of cases confronted by the DoD logistics community. It will also identify some actions which have been taken in the past to manage the issue as well as initiatives now underway. Finally it will look at what lies ahead.

关键词： Microelectronics

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Analysis of components in light tar and producer gas from the organic waste gasification process

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AIP Conference Proceedings 2024年第1期3115卷

作者： M. Faisal Ain Lubis Rochim Bakti Cahyono Ade Kurniawan Alinda Fitrotun Nisya Arief Budiman Master Program in System Engineering Universitas Gadjah Mada Jalan Teknika Utara 3 Yogyakarta 55281 Indonesia Department of Chemical Engineering Universitas Gadjah Mada Jalan Grafika 2 Yogyakarta 55284 Indonesia Department of Chemical Engineering Universitas Islam Indonesia Jalan Kaliurang km 145 Yogyakarta 55584 Indonesia

Indonesia, as a developing country with an ever-increasing population, has an increasing amount of municipal solid waste, most of which is organic. Organic waste with high, medium, and low moisture content was acquired from TPST Piyungan, Yogyakarta. Moisture content is a organic waste quality parameter that must be studied for its impact on the gasification process. Gasification produces products in the form of gas (producer gas), solid (char+ash), and liquid (heavy tar+light tar). The light tar is the most difficult to separate. The light tar component has a high moisture content and contains 1-6 ring aromatic carbon 46.91%, heterocyclic 42.61%, phenolic 1.68%, benzene 0.60%, and other 8.20%. Meanwhile, 52.05% of the medium is aromatic carbon rings 1-6, 39.02% is heterocyclic, 0.44% is phenolic, 0.63% is benzene, and 7.86% is other. The content of 1-6 rings at low moisture content is 39.00% aromatic carbon, 46.60% heterocyclic, 1.20% phenolic, and 13.20% others. Producer gas has a high moisture content for chemicals that contribute to calorific value: CO 49.27%, H2 2.49%, and CH4 4.23%. CO is 50.37%, H2 is 2.41%, and CH4 is 4.40% with medium moisture level; at low moisture content, CO is 53.82%, H2 is 2.55%, and CH4 is 4.70%. Light tar and producer gas are crucial products for determining the quality of the gasification process based on the quality of the organic waste. It is critical to determine the magnitude of the influence on the energy conversion equipment for waste power generation.

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Reconstructing Suspended Sediment Concentrations in the Mekong River Basin Via Semi-Supervised-Based Deep Neural Networks

SSRN

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SSRN 2024年

作者： Nguyen, Thi-Thu-Ha Vu, Duc Quang Doan, Ngoc Phu Thi Khanh Chi, Huynh Li, Peixin Van Binh, Doan An, Yimeng Tuan Dung, Pham Hoang, Tuan A. Thai Son, Mai Laboratory of Environmental Sciences and Climate Change Institute for Computational Science and Artificial Intelligence Van Lang University Ho Chi Minh City70000 Viet Nam Faculty of Environment School of Technology Van Lang University Ho Chi Minh City70000 Viet Nam Department of Computer Science and Information System Thai Nguyen University of Education Viet Nam School of Electronics Electrical Engineering and Computer Science Queen’s University Belfast United Kingdom College of Economics and Management Nanjing University of Aeronautics and Astronautics China Master program in Water Technology Reuse and Management Faculty of Engineering Vietnamese-German University Binh Duong Province Ben Cat Town820000 Viet Nam

The Mekong River Basin (MRB) is one of the highest biodiversity areas in the world and is the vital source of livelihoods for more than 60 millions of people over six countries in Southeast Asia. However, it is suffering from a severe sediment starvation problem caused by climate change and human activities, particularly dam constructions. Understanding long-term sediment changes thus plays a crucial role for management and contingency plans. Current sediment concentration data in the MRB are extremely sporadic, making it a non-trivial task to analyze them. This paper focuses on the sediment reconstruction to provide long-term reliable suspended sediment concentration (SSC) data using Machine Learning (ML) perspectives. In particular, a novel semi-supervised ML model, which can effectively deal with data sparsity, is introduced to predict/reconstruct missing sediment data. The key idea of this approach is to exploit abundant available hydroclimate data to reduce training overfitting rather than solely relying on sediment concentration data, thus enhancing the accuracy of the employed ML models. Extensive experiments on data obtained from 1979 to 2019 at the three main stations (i.e., Chiang Saen, Nong Khai, and Mukdahan) are conducted to demonstrate the performances of the proposed method compared to other state-of-the-art supervised techniques and traditional simulation methods commonly used in previous sediment forecasting/reconstruction studies. To the best of our knowledge, this approach is the first semi-supervised method to reconstruct sediment data in the field. Though this study focuses on the MRB, sediment sparsity is a very common problem in other river systems worldwide. Thus, this method can be widely applied for them for more effective sediment reconstruction/prediction in general. © 2024, The Authors. All rights reserved.

关键词： Biodiversity

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Simplified simulation of glucose hydrolysis to levulinic acid for estimating kinetic parameters

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AIP Conference Proceedings 2024年第1期3073卷

作者： Meutia Ermina Toif Savitri Kamila Fatma Muslikhin Hidayat Rochmadi Rochmadi Arief Budiman LPP Agro Nusantara Jalan LPP No. 1 Yogyakarta 55222 Indonesia Department of Chemical Engineering Universitas Gadjah Mada Jalan Grafika No. 2 Yogyakarta 55281 Indonesia Master Program in System Engineering Universitas Gadjah Mada Jalan Teknika Utara No. 3 Yogyakarta 55281 Indonesia

Levulinic acid (LA) is a short-chain fatty acid with ketone and carboxylic acid group which gives it superior characteristics as a building-block chemical for producing various chemicals, such as: Ƴ-valerolactone (GVL), methyltetrahydrofuran (MTHF), diphenolic acid (DPA), delta-aminolevulinic acid (DALA), and levulinate ester. Levulinic acid can be synthesized from various kinds of biomass and its derivatives, one of which is glucose. The reaction route of glucose hydrolysis to LA generally involves intermediates such as fructose, levoglucosan, and HMF, depending on the type of catalyst used. In this study, simulation of the kinetics of the hydrolysis reaction of glucose into LA was performed by simplifying the reaction scheme from reference data. The variables studied were temperature (140-160 oC) and concentration of hydrochloric acid catalyst (0.5-1.5 M). The hydrolysis data were simulated with three different models using MATLAB 2018a. The function of ode45 was used to solve the differential equations and fminsearch tool was used to minimize the kinetic parameter values. Chang’s model produces a greatest mean R2 (closer to one), which is considered more suitable than Mikola and Liang’s model.

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Soliton system evaluations using fibers with dispersion and loss fluctuations

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ELECTRONICS AND COMMUNICATIONS IN JAPAN PART II-ELECTRONICS 1996年第4期79卷 77-84页

作者： Ishiba, K Komatsu, T Takahara, M Faculty of Engineering Yamanashi University Kofu Japan 400 Graduated in 1994 from the Department of Electronic and Information Engineering where he is currently in the Master's program. He has been engaged in research on optical fiber soliton transmission. Received his B.S. and M.S. degrees in 1993 and 1995 respectively from the Department of Electronic and Information Engineering Yamanashi University. He joined NTT in April 1995. He has been engaged in research on simulation of the optical fiber soliton transmission and on the transmission system with flexibility in transmission speed. Graduated from the Department of Electrical Engineering Yamanashi University in 1965 and received his M.S. degree in 1967. He received his Ph.D. degree later. In 1967 he became a Research Associate of the Department of Electronic Engineering Yamanashi University. In 1991 he became a Professor of Electronic and Information Engineering. He has been engaged in research on special function theory nonlinear circuits optical communication systems and LAN systems. In 1984 he received a Book Award from I.E.I.C.E. In 1990–91 he was on leave at Southampton University. He is a member of IEEE.

In the development of practical multimedia systems, greater capacity is desired in a long-distance large-capacity transmission system. A number of studies have been undertaken to develop a long-distance large-capacity system. Several long-distance transmission experiments for high-density transmission by wavelength demultiplexing method (WDM) have been reported recently. However, more of the experimental examples have reported on soliton transmission than on WDM systems. Hence, the former is considered more advanced. It is necessary to prepare a fiber of a length of approximately 10,000 km for ultralong-distance transmission experiment. Since this is difficult to obtain, repetitive experiments are often the case. However, such an experiment does not disclose the effects of dispersion and loss fluctuation in the fiber. In this paper, the effect of fluctuation in dispersion and loss in the fiber is studied by simulation so that the resilience of the soliton to the variations of the fiber characteristics is evaluated.

关键词： optical soliton dispersion fluctuation loss fluctuation Gordon-Haus jitter

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Alert and Response of Earthquake and Tsunami for Community Based Disaster Risk Reduction

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Journal of Physics: Conference Series 2021年第1期1811卷

作者： Rr M I Retno Susilorini Andre Kurniawan Pamudji Ridwan Sanjaya Amrizarois Ismail Ardhito Hayyu Amasto Department of Infrastructure and Environmental Engineering Faculty of Environmental Science and Technology Soegijapranata Catholic University Semarang Master Program of Environmental and Urban Studies Faculty of Environmental Science and Technology Soegijapranata Catholic University Semarang Department of Information System Faculty of Computer Science Soegijapranata Catholic University Semarang

Indonesia had been suffered by earthquake and tsunami for many centuries. Since many lives have taken by tsunami strikes, alert and response system are very important as important part of Disaster Risk Reduction, especially in area with high population density. This research conducted in Kangkung fishing village in Bandar Lampung coastal area which is an earthquake and tsunami prone area. The aim of the research is to study alert and response of Community Based Disaster Risk Reduction. The research conducted by qualitative method and purposive-descriptive approach. There were 53 respondents which participated in the survey and interview. It is reported that 'Smart Resilient City' model suitable for community needs of alert and response of earthquake and tsunami disaster. This research meets conclusion that 'Smart Resilient City' model may become a great solution in Community Based Disaster Risk Reduction to cope with the hazard of earthquake and tsunami comprehensively and sustainably.

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Operational systems, logistics engineering and technology insertion

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NAVAL ENGINEERS JOURNAL 1997年第3期109卷 205-220页

作者： Grubb, MJ Skolnick, A Michael J. Grubb:has perfomzed naval engineering at the Crane Division Naval Surface Warfare Center (NSWC) for more than twenty-five years. He currently the program manager for the Sustainable Hardware and Affordable Readiness Practice Program (SHARP). is a Navy-wide logistics research and development prgram aimed at the successful transiton of proved technologies inot the fleet. SHARP focuses on reducing acquisition performance capability reliability maintainability and readiness of these systems. Mr. Grubb has served as a department director for the past eleven years. His most recent assignment was as director of the Tactical Computer Resources and Test Equipment Department. This organization provided acquisition and in-service engineering support of the Navy's tectical embedded computers priphirals displays and mass memory storage devices. The organization also provided a complete range of product engineering and metrology engineerig services for SSP NevSeaSysCom and the Trident Program. Prior to this appointment Mr. Grubb was deptuy director psysical security programs department and site responsible for program management and system integration of ashore integrated security systems. Mr. Grubb holds a B.S. degree in industrial engineering from Iowa State Universtiy an M.S. degree in industrial engineering from Purdue University and has copleted the course work (Dec.'96 for a master's degree in public and environment affairs at Indiana University-Purdue Univeristy Indianapolis. Dr. Alfred Skolnick operates System Science Consultants (SSC) specilizing in strategic planning technical program definiton technology assessment and engineering analyses on selected matters of national interest. He has taught physics mathematics and management sciences at University of Virginia and Marymount University and is currently adjunct professor of mathematics at Northern Virginia Community College. Form 1985 to 1989 he was president of the American Society of Noval Engineers. Dr. Skolnick served at Applied Physic

In an era of fiscal austerity, downsizing and unforgiving pressure upon human and economic capital, it is an Augean task to identify resources for fresh and creative work. The realities of the day and the practical demands of more immediate fleet needs can often dictate higher priorities. Yet, the Navy must avoid eating its seed corn. Exercising both technical insight and management foresight, the fleet, the R&D community, the Office of the Chief of Naval Operations (OpNav) and the product engineering expertise of the Naval Surface Warfare Center (NSWC) are joined and underway with integrated efforts to marry new, fully demonstrated technologies and operational urgencies. Defense funding today cannot sponsor all work that can be mission-justified over the long term because budgets are insufficient to support product maturation within the classical development cycle. However, by rigorous technical filtering and astute engineering of both marketplace capabilities and currently available components, it is possible in a few select cases to compress and, in effect, integrate advanced development (6.3), engineering development (6.4), weapon procurement (WPN), ship construction (SCN), operation and maintenance (O&M,N) budgetary categories when fleet criticalities and technology opportunities can happily meet. In short, 6.3 funds can be applied directly to ''ripe gateways'' so modern technology is inserted into existing troubled or aging systems, sidestepping the lengthy, traditional development cycle and accelerating practical payoffs to recurrent fleet problems. To produce such constructive results has required a remarkable convergence of sponsor prescience and engineering workforce excellence. The paper describes, extensively, the philosophy of approach, transition strategy, polling of fleet needs, technology assessment, and management team requirements. The process for culling and selecting specific candidate tasks for SHARP sponsorship (matching operational need with t

关键词： Naval vessels

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Analysis of user readiness toward ICT usage at small medium enterprise in south tangerang

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Journal of Physics: Conference Series 2018年第1期1007卷

作者： D Napitupulu M Syafrullah R Rahim D. Abdullah MI Setiawan Research Center for Quality System & Testing Technology Indonesian Institute of Sciences Tangerang Selatan Banten Indonesia Program of Master of Computer Science Universitas Budi Luhur Indonesia School of Computer and Communication Engineering Universiti Malaysia Perlis Malaysia Department of Informatics Universitas Malikussaleh Aceh Indonesia Department of Civil Engineering Narotama University Surabaya Indonesia

Utilization of Information and Communication Technology (ICT) is still relatively low in the level of SMEs due to various limitations ranging from access to capital, till the marketing network. ICT is present to provide the ability for SMEs in improving the benefits and competitive advantage of the organization. This study aims to determine the level of readiness of SMEs in utilizing technology, especially ICT. The methodology used is a survey to see the technology readiness of 107 SMEs in South Tangerang selected by purposive sampling. The approach used is TRI (Technology Readiness Index) which is the individual perception of technology based on four criteria that is optimism, innovativeness, discomfort and insecurity. The results showed that the optimism and innovativeness variables significantly positively influence the technology readiness while the variables of discomfort and insecurity also significantly positively influence the readiness of ICT.

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Analysis of e-learning implementation readiness based on integrated elr model

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Journal of Physics: Conference Series 2018年第1期1007卷

作者： K Adiyarta D Napitupulu R Rahim D. Abdullah MI Setiawan Program of Master of Computer Scocience Universitas Budi Luhur Indonesia Research Center for Quality System & Testing Technology Indonesian Institute of Sciences Tangerang Selatan Banten Indonesia School of Computer and Communication Engineering Universiti Malaysia Perlis Malaysia Department of Informatics Universitas Malikussaleh Aceh Indonesia Department of Civil Engineering Narotama University Surabaya Indonesia

E-learning nowadays has become a requirement for institutions to support their learning activities. To adopt e-learning, an institution requires a large strategy and resources for optimal application. Unfortunately, not all institutions that have used e-learning got the desired results or expectations. This study aims to identify the extent of the level of readiness of e-learning implementation in institution X. The degree of institutional readiness will determine the success of future e-learning utilization. In addition, institutional readiness measurement are needed to evaluate the effectiveness of strategies in e-learning development. The research method used is survey with questionnaire designed based on integration of 8 best practice ELR (e-learning readiness) model. The results showed that from 13 factors of integrated ELR model being measured, there are 3 readiness factors included in the category of not ready and needs a lot of work. They are human resource (2.57), technology skill (2.38) and content factors (2.41). In general, e-learning implementation in institutions is in the category of not ready but needs some of work (3.27). Therefore, the institution should consider which factors or areas of ELR factors are considered still not ready and needs improvement in the future.

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