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Estimation of the Radial Distribution of the Tangential Velocity in a Vortex Chamber

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Journal of Thermal Science 2009年第1期18卷 27-32页

作者： Akira OGAWA Tsuyoshi IKARI Hiroyuki MURAKAMI Kouhei SATHO T-110-0011 Minowa 2-14-7 Taitou-Ku Tokyo Japan AQUAS .co.ltd. Japan The Marine Self Defense Force Japan gma co.ltd. Japan

The estimation of maximum tangential velocity becomes a very important factor for the estimation of performancesof the vortex chamber. In this paper, a proposed flow model of how to estimate the maximum tangential velocity inthe special form of the vortex chamber is described in detail. The pressure drop basing upon the rapid expansion byflowing from the inlet pipe into the cyclone body is estimated as half of the dynamic pressure in the inlet pipe.

关键词： Vortex chamber tangential velocity angular momentum flux Reynolds number

Digital controlling for gma welding machine based on DSP

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China Welding 2003年第2期12卷 158-161页

作者：华学明吴毅雄张勇焦馥杰于乾波 Shanghai Jiaotong University Shanghai 200030 Shanghai University of Engineering Science Shanghai 200336 Nantong Sanjiu Welding Equipment co.ltd. Nantong 226006

This paper introduced a welding machine for gmaW using digital controlling method based on DSP (Digital Signal Process). By means of flexible programming according to welding technologies and experiences the suitable characteristics of welding machine, such as line compensation, welding voltage and current feedback, wire-feed driving, SCR trigging and so on, can be controlled and self-adjusted using digital signals. Through the designing based on DSP it is put out that the traditional hardware of control circuit is decreased greatly which can enhance the stability and reliability of welding machine. Finally, the welding experiment using co 2 shielding gas proves that the welding process is stable.

关键词： digital signal process welding machine gmaW

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中学设计,罗马,意大利

世界建筑 2005年第10期 60-63页

作者： Garofalo Miura architetti (Rome) gma事务所罗马

这是一个后功能主义时代的学校建筑.我们知道,学校是功能主义范式的结果,功能主义是一段我们深有感情的辉煌经历.但是,我们必须重新审视它的先验性,将它们放到当前问题中来分析.最初解析式的依据功能分布的组织形式是卫生要求和空间经... 详细信息

这是一个后功能主义时代的学校建筑.我们知道,学校是功能主义范式的结果,功能主义是一段我们深有感情的辉煌经历.但是,我们必须重新审视它的先验性,将它们放到当前问题中来分析.最初解析式的依据功能分布的组织形式是卫生要求和空间经济需求的结果.其典型结果表现为一系列通过线性路径联系的分散的体量和空间.

关键词：中学设计意大利罗马功能主义学校建筑卫生要求功能分布结果表现和空间解析式

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不列颠学校的扩建和改造,罗马,意大利

世界建筑 2005年第10期 64-67页

作者： Garofalo Miura architetti (Rome) gma事务所罗马

1911年,罗马的不列颠学校在埃德温·勒琴斯爵士的设计基础上建造而成.在一些重要捐赠人的支持下,该学校开展了一系列项目,包括两个增建和部分改造.在东面,增建了一个新的配备完善的150座讲演厅,讲演厅正对着国家现代美术馆.这个新体量... 详细信息

1911年,罗马的不列颠学校在埃德温·勒琴斯爵士的设计基础上建造而成.在一些重要捐赠人的支持下,该学校开展了一系列项目,包括两个增建和部分改造.在东面,增建了一个新的配备完善的150座讲演厅,讲演厅正对着国家现代美术馆.这个新体量建在原有的花园院墙之后,但走向与之不同,看上去好像一个新院墙上覆盖了连续的绿色石头带层,非常有特点.讲演厅的屋顶可作为一个新的平台使用,平台周边环绕着一个为下层空间采光的带形的玻璃天窗.一个新的流线组织将学校的主入口与讲演厅和新美术馆连接起来.

关键词：学校改造罗马意大利扩建设计基础流线组织美术馆讲演平台

convective Schrodinger Equation:Insights on the Potential Energy’s Role to Wave Particle Decay

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Journal of Electromagnetic Analysis and Applications 2015年第9期7卷 225-232页

作者： Altair S.de Assis Hector Torres-Silva Goran T.Marklund Universidade Federal Fluminense(IM-gma) NiteroiBrasil Universidad de Tarapaca AricaChile Kungliga Tekniska Hogskolan—KTH StockholmSweden

In this paper, we coupled the Quantum Mechanics conventional Schrödinger’s equation, for the particles, with the Maxwell’s wave equation, in order to study the potential’s role on the conversion of the electromagnetic field energy to mass and vice versa. We show that the dissipation (“conductivity”) factor and the particle implicit proper frequency are both related to the potential energy. We have also derived a new expression for the Schrödinger’s Equation considering the potential energy into this equation not as an ad hoc term, but also as an operator (Hermitian), which has the scalar potential energy as a natural eigenvalue of this operator.

关键词： Schrodinger’s Equation Klein-Gordon’s Equation Maxwell’s Wave Equation convection Displacement Current

Preparation and Microscopic Characterization of Asphalt Modified by Ethylene Metal-free Phthalocyanine-dispersed Graphene

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Journal of Wuhan University of Technology(Materials Science) 2022年第1期37卷 66-75页

作者： HUANG Gang HUANG Hao ZHANG Xia HE Junxi ZHOU Chao TAN Yan FENG Manman LÜChuncheng National and Local Joint Engineering Laboratory of Traffic Civil Engineering Materials Chongqing Jiaotong UniversityChongqing 400074China Xinjiang Transportation Planning SurveyDesign and Research Institute Co.LtdWulumuqi 830006China China Merchants Chongqing Testing Center for Highway Engineering co. LtdChongqing 400074China

Graphene-modified asphalt(gma)for road application was prepared via using metal-free phthalocyanine-dispersed to modify an SK-70#base asphalt with *** preparation parameters are as follows:the content of graphene is 0.26%based on the mass percentage of absolute ethanol,the content of nonmetal phthalocyanine is 190%based on the mass percentage of graphene,and then the gma is prepared via unique high-speed shearing with continuing to ventilate nitrogen,which can prevent the aging of modified asphalt in the high-speed shearing process,and effectively evaluate the *** penetration,softening point,force ductility,and fracture energy of gma were significantly improved based on the base ***,the incorporation of graphene could enhance the base asphalt’s high-and low-temperature *** modification mechanism was researched via metallographic microscopy,computed tomography(CT),Fourier transform infrared spectroscopy(FTIR),and atomic force microscopy(AFM).Adsorption and physical dispersion of the asphaltenes and resins in the phthalocyanine-graphene system were confirmed.

关键词： ethylene metal-free phthalocyanine gma performance dispersion and adsorption asphaltene resin

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The AK Transform

Applied Mathematics 2017年第2期8卷 145-153页

作者： Altair S. de Assis Siegbert Kuhn Juan A. Limaco comissã o Nacional de Energia Nuclear—DPD Rio de Janeiro RJ Brasil Universidade Federal Fluminense—gma Niterói RJ Brasil Universitä t Innsbruck Institut für Theoretische Physik Innsbruck Austria

In this brief communication we present a new integral transform, so far unknown, which is applicable, for instance, to studying the kinetic theory of natural eigenmodes or transport excited in plasmas with bounded distribution functions such as in Q machines/plasma diodes or in the scrap-off layer of Tokamak fusion plasmas. The results are valid for functions of function spaces—Lebesgue spaces, which are defined using a natural generalization of the p-norm for finite-dimensional vector spaces, where is the real set, σs is the σ-algebra of Lebesgue measurable sets, and the μ Lebesgue measure. , so that . Note that, using a simpler notation, more natural/known to engineers, f could be considered any piecewise continuous function, that is: Here is a Euclidian space with the usual norm (inner product: ) given by: [1].

关键词： Integral Transform Lebesgue Measures Kinetic Theory of Bounded Plasmas Natural Eigenmodes Transport Q-Machines Plasma Diodes Tokamak Nuclear Fusion

The Role of compatibilizers on the Properties of PC/ABS Alloy

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Journal of Materials Science and Chemical Engineering 2017年第6期5卷 21-30页

作者： Hao Duan Min-Qi Xin Kwang-Yoon Kim Jun-Jie Tang Fine-Blend compatilizer Jiangsu co. ltd. Shanghai China Shanghai Kumhosunny Plastics co. ltd. Shanghai China

Two compatibilizers consisting of styrene-acrylonitrile-glycidyl methacrylate (SAG) terpolymer with different contents of glycidyl methacrylate (gma), SAG-001 (1 wt% of gma) and SAG-005 (5 wt% of gma), and styrene-acry-lonitrile-maleic anhydride terpolymer (SAM), SAM-002 (2 wt% of maleic anhydride ), were used to evaluate the role of compatibilizers in the PC/ABS alloy in terms of the mechanical properties, thermal stability and phase morphology. The tensile strength of SAG modified PC/ABS alloy slightly increased than that of SAM modified system, but the two compatibilizers barely affected the flexural strength of the system. On the other hand, the impact strength of SAG modified PC/ABS was improved. In addition, the MFR (melt flow index) of the SAG modified PC/ABS alloy reduced, implying that the viscosity or molecular weight of the system increased. The HDT (heat distortion temperature) also improved with SAG modified system. Moreover, the phase morphology of the SAG modified PC/ABS alloys much enhanced than that of SAM modified system. As a consequence, SAG compatibilized PC/ABS alloy showed better properties than those of SAM modified system, suggesting that the reaction between carboxylic or epoxy groups in SAG and terminal carboxyl group in PC would be the main factor to bring the enhancement in the mechanical, thermal and morphological properties of the PC/ABS alloy.

关键词： compatibilizer PC/ABS SAG SAM Thermostability Mechanical Property Phase Morphology

Shaking Moment Minimization of Fully Force-Balanced Linkages

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Shaking Moment Minimization of Fully Force-Balanced Linkages