检索结果-内蒙古大学图书馆

A novel catalytic system for the oxidative destruction of toXIC ORGANIC COMPOUNDS IN INDUSTRIAL WASTEWATERS

Water and Environment Journal 2003年第1期17卷 13-18页

作者： Ishtchenko, V.V. Huddersman, K.D. Vitkovskaya, R.F. Tereschenko, L.Y. Romanova, E.P. Rumynskaya, I.G. Department of Engineering Chemistry and Industrial Ecology St. Petersburg State University of Technology and Design St. Petersburg Russian Federation Faculty of Applied Science De Montfort University Leicester United Kingdom

This work describes a novel heterogeneous oxidation catalyst which is analogous to the homogeneous-phase Fentons reagent for the successful destruction of a range of organic pollutants. The catalyst is a polyacrylonitrile fibre which was modified to incorporate ligatinggroups, resulting in a transition metal cation being firmly fixed onto the fibre. The novelty of the catalyst resides in its open-knit mesh structure. In the presence of hydrogen peroxide, the catalyst containing ferric ions (as the active site) is shown to rapidly decompose phenol in addition to (a) the anthraquinone dyes: acid blue 45, carminic acid and reactive blue 19, and (b) the azo-dye drimarine red K. B. The decomposition reaction was followed by ultraviolet spectroscopy, and the distribution of ferric ions on the external surface of the fibre was examined by a scanning electron microscope. The mechanical properties of the fibre were found to have decreased on modification but were still sufficient for the manufacture and commercial exploitation of the fibre. © 2003 Blackwell Publishing Ltd.

关键词： Catalytic oxidation Dyes Fibrous structure catalyst Industrial wastewater Phenols

来源：评论

学校读者我要写书评

暂无评论

Making plastics from garbage: A novel process for poly-L-lactate production from municipal food waste

引用

Journal of Industrial Ecology 2003年第3-4期7卷 63-74页

作者： Sakai, Kenji Taniguchi, Masayuki Miura, Shigenobu Ohara, Hitomi Matsumoto, Toru Shirai, Yoshihito Department of Applied Chemistry Faculty of Engineering Oita University Oita 870-1192 Japan Department of Applied Chemistry Faculty of Engineering Oita University Oita Japan Dept. of Mat. Science and Technology Faculty of Engineering Niigata University Niigata Japan Dept. of Musashino Chem. Laboratory LTD Tokyo Japan Toyota Biotech. Afforestation Lab. Toyota Motor Corporation Aichi Japan Dept. of Environmental Space Design Faculty of Environmental Engineering University of Kitakyushu Fukuoka Japan Grad. Sch. Life Sci. and Syst. Eng. Kyushu Institute of Technology Fukuoka Japan

We propose a novel recycling system for municipal food waste that combines fermentation and chemical processes to produce high-quality poly-L-lactate (PLLA) biodegradable plastics. The process consists of removal of endogenous D,L-lactic acid from minced food waste by a propionibacterium, L-lactic acid fermentation under semisolid conditions, L-lactic acid purification via butyl esterification, and L-lactic acid polymerization via LL-lactide. The total design of the process enables a high yield of PLLA with high optical activity (i.e., a high proportion of optical isomers) and novel recycling of all materials produced at each step, with energy savings and minimal emissions. Approximately 50% of the total carbon was removed, mostly as L-lactic acid, and 100 kg of collected food waste yielded 7.0 kg PLLA (about 34% of the total carbon). The physical properties of the PLLA yielded in this manner were comparable to those of PLLA generated from commercially available L-lactic acid. Evaluation of the process is also discussed from the viewpoints of material and energy balances and environmental impact.

关键词： Plastics

来源：评论

学校读者我要写书评

暂无评论

The Study of Neutron Irradiated 15Ch2MFA Reactor Pressure Vessel Steel

引用

Microscopy and Microanalysis 2003年第S3期9卷 324-325页

作者： Mária Dománková Juraj Bal'ák Vladimír Magula L'udovít Kupča Department of Materials Engineering Faculty of Materials Science and Technology STU 23 Bottova Street 917 24 Trnava Slovakia VÚJE Trnava Inc. - Engineering Design and Research Organization 5 Okružná Street 918 64 Trnava Slovakia IBOK Inc. 15 Pionierska Street 831 02 Bratislava Slovakia

来源：评论

学校读者我要写书评

暂无评论

A combined test structure with ring oscillator and inverter chain for evaluating optimum high-speed/low-power operation

A combined test structure with ring oscillator and inverter ...

引用

IEEE International Conference on Microelectronic Test Structures

作者： T. Matsuda H. Iwata T. Ohzone K. Yamashita N. Koike K. Tatsuuma Department of Electronics and Informatics Toyama Prefectural University Imizu Toyama Japan Faculty of Computer Science and System Engineering Okayama Prefectural University Soja Okayama Japan WLSI Process Technology Development Center Semiconductor Company Matsushita Elecrric Indusrrial Company Limited Minami Kyoto Japan

A test structure combined with a ring oscillator, an inverter chain and an embedded monitor inverter, which allows accurate internal node access, is proposed. V/sub dd/ and well-bias dependence of gate delay and supply current measured by both ring oscillator and inverter chain scheme. V/sub T/ control method by well biasing, particularly to forward direction, is effective for high speed operation under low supply voltage. The new test structure can be utilized to evaluate optimum conditions for high-speed/low-power operations as well as high-reliability operations.

关键词： Ring oscillators Inverters Circuit testing MOSFET circuits Threshold voltage Voltage control Circuit optimization Electronic equipment testing Delay CMOS process

来源：评论

学校读者我要写书评

暂无评论

A decentralized real-time control for biped robot

A decentralized real-time control for biped robot

引用

7th International Workshop on Advanced Motion Control, AMC '02 - Proceedings

作者： Suzuki, Jun Ito, Daiki Kageyama, Takashi Morisawa, Mitsuharu Ohnishi, Kouhei Keio University Faculty of Science and Technology Department of System Design Engineering 3-14-1 Hiyoshi Kouhoku Yokohama Japan

This paper describes a structure of a decentralized control for a biped robot system. The biped robot is regarded as the aggregation of some subsystems. A biped walking is implemented by contacting an environment alternately. The environment consists of various objects with a dynamic characteristic. In other words, there are numerous modes in the environment. Therefore, the mode of the environment should be extracted properly in order to realize a stable walking. A certain mode acts on the COG (center of gravity) directly. It is necessary to communicate each mode to the subsystems which need its mode at hard real time on condition that there is no priority in information. This paper discusses a general structure of decentralized control which information is required to communicate at hard real time. The performance of proposed method is confirmed by the developed simulator. ©2002 IEEE.

关键词： Robots

来源：评论

学校读者我要写书评

暂无评论

40th EASD Annual Meeting of the European Association for the Study of Diabetes : Munich, Germany, 5-9 September 2004

引用

Diabetologia 2004年第SUPPL 1期47卷 A1-A464页

作者： Veitenhansl, M. Stegner, K. Hierl, F.-X. Dieterle, C. Feldmeier, H. Gutt, B. Landgraf, R. Garrow, A. P. Vileikyte, L. Findlow, A. Waterman, C. Boulton, A. J. M. Shankhdhar, K. Shankhdhar, L. Shankhdhar, U. Petrova, N. L. Foster, A. V. M. Edmonds, M. E. Ferraresi, R. Caravaggi, C. De Giglio, R. Cavaiani, P. Pogliaghi, I. Sommariva, E. Katz, I. A. Harlan, A. Miranda-Palma, B. Prieto-Sanchez, L. Armstrong, D. G. Bowker, J. H. Mizel, M. S. Cernea, S. Wohlgelernter, J. Kidron, M. Modi, P. Raz, I. Arbit, E. Nosek, L. Kapitza, C. Beckett, P. Gelfand, R. Goldberg, M. Heise, T. Testa, M. A. Turner, R. R. Hayes, J. F. Scranton, R. E. Simonson, D. C. Yang, Y.-W. Hsu, Y.-J. Naujok, O. Francini, F. Jörns, A. Tiedge, M. Lenzen, S. Abdel-Wahab, Y. H. A. Marenah, L. Orr, D. F. Shaw, C. Flatt, P. R. Chokkalingam, K. Mansell, P. I. Clausen, P. Ekbom, P. Damm, P. Feldt-Rasmussen, U. Nielsen, B. Mathiesen, E. R. Feldt-Rasmussen, B. Dewan, S. Da Silva, N. Ternan, P. Mc Leong, K. S. Wilding, J. P. H. Asatiani, N. Kurashvili, R. Dundua, M. Shelestova, E. Pagava, K. Ramazashvili, M. Hod, M. Smirnov, S. Petersen, J. L. A. Justesen, T. I. Ringholm Nielsen, L. Müller, C. Højlund, K. Wensaas, A. Kase, E. T. Aas, V. Rustan, A. C. Thoresen, G. H. Levin, K. Beck-Nielsen, H. Gaster, M. Im, S.-S. Kang, S.-Y. Kim, S.-Y. Ahn, Y.-H. Lihn, A. S. Schmoll, D. Werner, T. Kienitz, A. Meyer, M. Barthel, A. Ailett, F. Sutherland, C. Walther, R. Grempler, R. Sasson, S. Reich, R. Tenenbaum, T. Alpert, E. Anfossi, G. Russo, I. Traversa, M. Massucco, P. Mattiello, L. Doronzo, G. Trovati, M. Lally, S. Tan, C. Y. Owens, D. Tomkin, G. H. Porchay, I. Péan, F. Bellili, N. Betoulle, D. Balkau, B. Tichet, J. Marre, M. Fumeron, F. Chatellier, G. Alhenc-Gelas, F. Nichols, G. A. Brown, J. B. Hayes, R. P. Bowman, L. Drexel, H. Saely, C. H. Marte, T. Benzer, W. Langer, P. Hoefle, G. Moll, W. Aczel, S. Karagiannis, E. Lübben, G. Urquhart, R. Edwards, G. Bruce, S. Howlett, H. S. C. Cugnardey, N. Turner, K. C. Park, J.-S. Fiedorek, F. T. Avogaro, A. Gallo, A. Pinton, P. Riz Innenstadt Klinikum der Universität München München Germany Diabetes Center Medizinische Klinik München Germany Medicine The University of Manchester Manchester UK Medicine University of Manchester Manchester UK Podiatry The University of Salford Manchester UK Department of Medicine/Division of Endocrinology Diabetes and Metabolism University of Miami Miami USA Department of Medicine Manchester Royal Infirmary Manchester UK Podiatry L.K.Diabetes Centre Lucknow India Diabetology L.K.Diabetes Centre Lucknow India Medical Nutrition L.K.Diabetes Centre Lucknow India Diabetic Foot Clinic King’s College Hospital London UK Haemodinamic Department - Cardiovascular Division Magenta Hospital Milan Italy Center for the Study and Treatment of Diabetic Foot Pathology Abbiategrasso Hospital Milan Italy Center for the Study and Treatment of Diabetic Foot Pathology Abbiategrasso Hospital Abbiategrasso Italy Department of Orthopedics University of Miami Miami USA Department of Surgery Southern Arizona Veterans Affairs Medical Center Tucson USA Surgery Southern Arizona VA Medical Center Tucson USA Podiatric Medicine and Surgery Rosalind Franklin University School of Medicine and Science North Chicago USA Diabetes Department Center of Diabetes Nutrition and Metabolic Disorders Clug-Napoca Romania Diabetes Unit Hadassah University Hospital Jerusalem Israel Diabetes Unit Hadassah Hebrew University Hospital Jerusalem Israel Research Department Generex Biotechnology Corporation Toronto Canada Hadassah Hebrew University Hospital Jerusalem Israel Medical Research Emisphere Technologies Inc. New York USA Profil Institut fuer Stoffwechselforschung GmbH Neuss Germany Profil Institute for Metabolic Research Neuss Germany Management Profil Inst. für Stoffwechselforschung Düsseldorf Germany Institute for Metabolic Research Profil Neuss Germany Biostatistics Harvard School of Public Health Boston USA Clinical Research Phase V Technologies Wellesley Hills US

来源：评论

学校读者我要写书评

暂无评论

Connection design for motion control system

Connection design for motion control system

引用

International Workshop on Advanced Motion Control (AMC)

作者： M. Morisawa K. Ohnishi Faculty of Science and Technology Department of System Design Engineering Keio University Japan

Up to now, much effort has been concentrated on the control of a single control of motion system. However future machine or robots will be spread out in our society and they will make their motion in an open environment. Since such an environment has a lot of modes, a design methodology of a motion controller for such a motion system is required. At first, the paper shows a novel viewpoint to abstract the modes from the environment. Two examples of an abstraction using a Hadamard matrix are shown. One is a friction free drive and the other is a control of a paddle foot. Modal transmission from the environment to the final motion should change adoptively according to the situation. If the system becomes complex, it is necessary to design the variable network from the modes to the motion via motion controllers. The paper secondarily shows a methodology to design the network of the motion system based on the hard real-time manner. The connection matrix and reachable matrix are used for the design of a variable network. Thirdly, since the total performance of the motion system depends on the performance of a single motion controller, a design method for the robust control with the feedforward loop is proposed. There are numerical and experimental examples in the paper. They show the viability of novel approach to the complex motion.

关键词： Motion control Service robots Orbital robotics design methodology Foot Humanoid robots Control systems Robust control Friction design engineering

来源：评论

学校读者我要写书评

暂无评论

Trajectory planning and environment recognition for unknown environment

Trajectory planning and environment recognition for unknown ...

引用

International Workshop on Advanced Motion Control (AMC)

作者： A. Kato T. Murakami K. Ohnishi Department of System Design Engineering Faculty of Science and Technology Keio University Japan

This paper deals with robots which can move in an unknown environment. Convenient robots can only move and work in a structured environment. This paper proposes a novel method. In the proposed method, the robot recognizes the unknown environment using a camera. Based on the visual information, robots construct a 3-D map to move and work in an unknown environment. The trajectory planning, communication with robots and other activities of the robots are based on the 3-D map. A simple example based on the method is simulated. The viability of the proposed method is confirmed by the simulated results.

关键词： Trajectory Robot vision systems Cameras Robot sensing systems Orbital robotics Buildings Humans Motion control Motion planning Image processing

来源：评论

学校读者我要写书评

暂无评论

Network resource allocation method for communicating control systems

Network resource allocation method for communicating control...

引用

International Workshop on Advanced Motion Control (AMC)

作者： N. Nagai T. Yakoh Department of System Design Engineering Faculty of Science and Technology Keio University Yokohama Japan

In order to realize distributed control systems, it is required to tie up plural distributed subsystems through a network, and the fusion of control engineering and realtime communication technology is also required. In this article, a new network resource allocation method is proposed. This is based on a traffic control queuing mechanism called ALTQ. To fill the delay time constraints for each flow, an online measurement mechanism of each packet transmission time in a router is introduced into a conventional ALTQ to limit the number of flows. This article shows the design and the implementation of the measurement mechanism. Also some experimental results shows the efficiency of the proposed method.

关键词： Resource management Control systems Communication system control Distributed control Control engineering Communications technology Traffic control Delay effects Time factors Fluid flow measurement

来源：评论

学校读者我要写书评

暂无评论

Position and force control of flexible manipulator with position sensitive device

Position and force control of flexible manipulator with posi...

引用

International Workshop on Advanced Motion Control (AMC)

作者： J. Suzuki T. Murakami K. Ohnishi Faculty of Science and Technology Department of System Design Engineering Keio University Yokohama Japan

This paper presents a position and force control of a flexible manipulator with PSD (position sensitive device). If this method is used, the arm approaches an object exactly, and pushes it by a desired force although the object is unknown. The position control is based on the resonance ratio control, When the reaction torque is estimated by the reaction torque observer, a friction model is used in this observer. However, the friction model differs from the real friction. The response is deteriorated. To improve this issue, the reaction torque is estimated by PSD. This observer does not need the friction model. In the result, the proposed method is better than the conventional method. The force control is a new method. It is based on the resonance ratio and it takes environment into account. The validity of the proposed method is shown by simulations and experiments.

关键词： Force control Torque Friction Manipulator dynamics Resonance Position control Frequency estimation Force feedback Parameter estimation design engineering

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：