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Acta Mathematicae Applicatae Sinica 1992年第1期8卷 59-72页

作者：郭柏灵 Institute of Applied Physics and Computational Mathematics Beijing 100083 Chinahe existence and uniqueness of the global smooth solution to the initial-boundary valueproblem of a system of multi-dimensions SRWE are proved. The sufficient conditions of "blowingup" of the solution are given.

The existence and uniqueness of the global smooth solution to the initial-boundary valueproblem of a system of multi-dimensions SRWE are proved. The sufficient conditions of 'blowingup' of the solution are given.

关键词： BLOW UP PHENOMENON FOR A SYSTEM OF MULTI DIMENSIONAL SYMMETRIC REGULARIZED WAVE EQUATIONS THE EXISTENCE OF GLOBAL solution AND

A Proposal of a Spline Filter that Achieves Both Robustness and Lower Compatibility

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Nanomanufacturing and Metrology 2021年第2期4卷 77-85页

作者： Yuki Kondo Munetoshi Numada Keiya Takahashi Ichiro Yoshida Hiroyasu Koshimizu HOSEI University 3-7-2 Kajino-choKoganei-shiTokyo184-8584Japan Chukyo University 101-2 Yagotohonmati Showa-kuNagoyaAichi466-8666Japan yyc solution 3-102-3F Kamiyashiro Meito-kuNagoyaAichi465-0025Japan

A spline filter is used to extract roughness profiles for the measurement of surface texture and is useful when sufficient sections before and after a primary profile could not be *** is because a spline filter could prevent the end effect,which is the fluctuation of output data that occurs around both ends of the primary profile and depends on the width of the weighting function of a *** spline filter is based on the calculation of an inverse matrix instead of the convolution of the weighting function of the *** input data include outliers,the output of a spline filter greatly *** solve this problem,we propose a robust spline ***,output of the robust spline is not in agreement with that of the spline filter when input data do not include ***,the robust spline filter has no lower *** this paper,the"Fast M-estimation Spline Filter(FMSF)"is *** uses the fast M-estimation *** performs robust to input data including outliers,and gives the same output as that of general spline filters to input data without *** value estimated by this method is in agreement with that estimated by the least squares method if no outlier *** order to apply the fast M-estimation method to the spline filter,convolution of weight function is used instead of the inverse *** the input geometry with shear and point-symmetric extensions is pre-processed to prevent the end effect.

关键词： Surface roughness Spline filter Robustness Lower compatibility End effect M-estimation method

Verification of Characteristics of Gaussian Filter Series for Surface Roughness in ISO and Proposal of Filter Selection Guidelines

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Nanomanufacturing and Metrology 2021年第2期4卷 97-108页

作者： Yuki Kondo Ichiro Yoshida Dan Nakaya Munetoshi Numada Hiroyasu Koshimizu HOSEI University 3-7-2 Kajino-choKoganei-shiTokyo184-8584Japan Chukyo University 101-2 Yagotohonmati Showa-kuNagoyaAichi466-8666Japan yyc solution 3-102-3F Kamiyashiro Meito-kuNagoyaAichi465-0025Japan

In surface roughness measurement,if spikes are included in the primary profile,a problem occurs wherein the Gaussian filter(GF)is unable to extract the shape *** address this problem,the use of a robust filter is ***,ISO16610-31:Gaussian regression filters(GRF)only provide a single method and a few examples,and does not specify the conditions under which the primary profile can be ***,the data presented in the example on robustness in ISO16610-31 do not contain roughness *** actual roughness measurements,no primary profile exists that does not include a roughness *** the characteristics of GRFs are unknown,it is not yet clear which filter should be used for which primary profile,and this is an issue that has been raised at ISO and JIS *** addition,the establishment of filter selection guidelines is necessary at measurement ***,this paper clarifies the characteristics of GF-series filters,summarizes the points to be considered when using them,and identifies the filter that should be selected according to different *** on the results,a figure that visualizes the characteristics of filters and a flowchart regarding which filter should be used are created;these tools,to the best of the authors’knowledge,did not exist prior to this *** is believed that these results will help fulfil the needs of measuring job sites and also aid in filter selection.

关键词： Surface roughness Gaussian filter Robust filter M-estimation method Fast M-estimation method

E-Forms in E-Business

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Wuhan University Journal of Natural Sciences 2001年第Z1期6卷 121-125页

作者： Ju De hua 1,Sheng Hao lin 2,Shen Bei jun 3 1.Application solution & Technologies,Inc Shanghai,Shanghai 200233, China 2.Application solution & Technologies,Inc USA,MD 20852, USA 3.East China University of Science & Technology,Shanghai 2002 Application solution & Technologies Inc Shanghai Shanghai China Application solution & Technologies Inc USA USA East China University of Science & Technology Shanghai China

The form based application framework is proposed as a straight solution for E business applications. A Rapid Application Development (RAD) tool FormNet is designed for developing complex enterprise network applications. Its main features and a comparison with Microsoft Windows Forms are presented in this paper. The tool can be also perfectly applied to the government form applications.

关键词： E business E forms Internet/Intranet/Extranet applications RAD tools

Microstructure and properties of alumina-silicon carbide nanocomposites fabricated by pressureless sintering and post hot-isostatic pressing

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Transactions of Nonferrous Metals Society of China 2011年第A01期21卷 1-6页

作者： Young-Keun JEONG Koichi NIIHARA National Core Research Center for Hybrid Materials solution Pusan National University Nagaoka University of Technology

A1203/5%SIC nanocomposites were fabricated by pressureless sintering using MgO as a sintering aid and then post hot-isostatic pressed （HIP）, which can subsequently break through the disadvantage of hot-pressing process. The MgO additive was able to promote the densification of the composites, but could not induce the grain growth of A1203 matrix due to the grain growth inhibition by nano-sized SiC particles. After HIP treatment, A12OJSiC nanocomposites achieved full densification and homogeneous distribution of nano-sized SiC particles. Moreover, the fracture morphology of HIP treated specimens was identical with that of the hot-pressed A1203/SiC nanocomposites showing complete transgranular fracture. Consequently, high fracture strength of 1 GPa was achieved for the A1203/5%SIC nanocomposites by pressureless sintering and post HIP process.

关键词： nanocomposite pressureless sintering fracture strength

Synthesis of MoO_3 by glow discharge in contact with water

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Plasma Science and Technology 2019年第2期21卷 97-104页

作者： A V KHLYUSTOVA N A SIROTKIN A S KRAYEV V A TITOV A V AGAFONOV Laboratory of Chemistry of Carbohydrate Coordination Compounds and Supermolecular System G.A.Krestov Institute of Solution Chemistry of RAS

An atmospheric pressure glow discharge was ignited between a molybdenum anode and the water surface of a cathode for the synthesis of MoO_3 powders. The action of glow discharge leads to the non-equilibrium evaporation of water, sputtering of the metal anode and formation of molybdenum(VI) oxide, which deposited on the anode. The chemical composition and morphology of the obtained powder were performed by using x-ray diffraction spectroscopy,scanning electron microscopy and Fourier transform infrared spectroscopy. It was found that the synthesized powders are pure α-MoO_3. The possible mechanism of the formation of molybdenum trioxide during glow discharge treatment was described. The photocatalytic performance of MoO_3 was estimated through the degradation of Rhodamine B under dark and UV irradiation conditions. Orthorhombic MoO_3 exhibited the best photocatalytic activity for the photodegradation of Rhodamine B of 100% under UV irradiation for 15 min.

关键词： molybdenum oxide glow discharge photocatalytic activity

ALUM solution INJECTION IN TREATMENT OF COMPLETE RECTAL PROLAPSE IN ADULTS

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Journal of Traditional Chinese Medicine 1982年第3期2卷 207-210页

作者： Cooperative Group for Treating Prolapse of the Rectum with Alum solution Cooperative Group for Treating Prolapse of the Rectum with Alum solution

214 adult patients with complete rectal pro-lapse were treated by high level perirectal injec-tion of alum solution injection.82 of the 214 pa-tients also suffered from complete or imcompleteincontinence,of whom 25 underwent constrictionof anus in addition to the *** all butone of the 214 cases,the rectum was restored toits normal position with no more prolapse duringdefecation or increase of abdominal pressure,theshort term cure rate being 99.5%.After injectiontreatment,3 cases were complicated with peri-rectal infection,94 cases had a heavy sensationor mild pain of anus and lower abdomen,and17 cases had difficulty in urination.137 caseswere regularly followed up for 1-20 years,withcomple cure in 90 cases(70.1%),improvement in18 cases(13.1%)and relapse in 23 cases(16.8%).

关键词： Pro ALUM solution INJECTION IN TREATMENT OF COMPLETE RECTAL PROLAPSE IN ADULTS

Optimal design considering structural efficiency of compressed natural gas fuel storage vessels for automobiles

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Transactions of Nonferrous Metals Society of China 2011年第A01期21卷 199-204页

作者： Myung-Chang KANG Hyung Woo LEE Chul KIM National Core Research Center for Hybrid Materials solution Pusan National University Research Institute of Mechanical Technology Pusan National University

The shape and thickness of the dome were investigated with the aim of optimizing the type II CNG storage vessels by using a finite element analysis technique. The thickness of the liners and reinforcing materials was optimized based on the requirement of the cylinder and dome parts. In addition, the shape of the dome, which is most suitable for type lI CNG storage vessels, was proposed by a process of review and analysis of various existing shapes, and the minimum thickness was established in this sequence： metal liners, composite materials and dome parts. Therefore, the new proposed shape products give a mass reduction of 4.8 kg（5.1%）

关键词： CNG fuel storage vessel mechanical property dome part bursting structural analysis

Effects of Cr interlayer on mechanical and tribological properties of Cr-Al-Si-N nanocomposite coating

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Transactions of Nonferrous Metals Society of China 2011年第A01期21卷 62-67页

作者： Young Su HONG Se Hun KWON Tiegang WANG Doo-In KIM Jihwan CHOI Kwang Ho KIM School of Materials Science and Engineering Pusan National University National Core Research Center for Hybrid Materials solution Pusan National University

Cr-A1-Si-N coatings were deposited on SUS 304 substrate by a hybrid coating system. A Cr interlayer was introduced between Cr-A1-Si-N coating and SUS 304 substrate to improve the coating adherence. The effects of Cr interlayer on the microhardness, adhesion, and tribological behavior of Cr-A1-Si-N coatings were systematically investigated. The results indicate that the microhardness of the Cr-A1-Si-N coatings gradually deceases with increasing thickness of Cr interlayers. The adhesion between Cr-A1-Si-N and SUS 304 substrate is improved by addition of the Cr interlayers. A peak critical load of-50 N is observed for the coating containing Cr interlayer of 60 nm as compared - 20 N for the coating without Cr interlayer. The thicker Cr interlayers result in reduced critical load values. Moreover, the wear resistance of the Cr-AI-Si-N coatings is greatly enhanced by introducing the Cr interlayer with thickness of 60 nm in spite of the decreased microhardness. The friction coefficient of the coating system is also moderately reduced.

关键词： Cr-A1-Si-N coating Cr interlayer hardness adhesion wear

Characteristic evaluation of Al_2O_3/CNTs hybrid materials for micro-electrical discharge machining

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Transactions of Nonferrous Metals Society of China 2011年第A01期21卷 28-32页

作者： Hyun-Seok TAK Chang-Seung HA Ho-Jun LEE Hyung-Woo LEE Young-Keun JEONG Myung-Chang KANG National Core Research Center for Hybrid Materials solution Pusan National University Department of Electrical Engineering Pusan National University

The characteristic evaluation of aluminum oxide （A1203）/carbon nanotubes （CNTs） hybrid composites for micro-electrical discharge machining （EDM） was described. Alumina matrix composites reinforced with CNTs were fabricated by a catalytic chemical vapor deposition method. A1203 composites with different CNT concentrations were synthesized. The electrical characteristic of A1203/CNTs composites was examined. These composites were machined by the EDM process according to the various EDM parameters, and the characteristics of machining were analyzed using field emission scanning electron microscope （FESEM）. The electrical conductivity has a increasing tendency as the CNTs content is increased and has a critical point at 5% A1203 （volume fraction）. In the machining accuracy, many tangles of CNT in A1203/CNTs composites cause violent spark. Thus, it causes the poor dimensional accuracy and circularity. The results show that conductivity of the materials and homogeneous distribution of CNTs in the matrix are important factors for micro-EDM of A1203/CNTs hybrid composites.

关键词： A1203/CNTs hybrid materials micro-electrical discharge machining micro-hole electrical conductivity