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活化络合物理论的热力学表达式的推导
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作者 李强国 《荆州师专学报》 1992年第5期68-70,共3页
本文通过模拟经验平衡常数 K 与标准平衡常数 K°,标准吉氏自由能变化△G°,标准焓变△H°及标准熵变△S°等热力学关系,导出了理想溶液反应及理想气体反应的 ACT 热力学表达式.
关键词 活化络合物理论 力学 ACT热力学表达式
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力学定理探讨
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作者 闫赤元 《办公自动化》 2018年第14期21-23,共3页
本文通过相对论中质速关系式m=m_0/√[1-(v/c)~2]和万有引力定律在实际运用分析,并结合E=mc^2进一步分析得出新的质速关系式◎v=◎_0(1+v1/c^2)v。当v1=1米/秒,则有v趋近于c时lim◎v=e◎_0(e为常数)。这一结论否定了爱因斯坦关于物体的... 本文通过相对论中质速关系式m=m_0/√[1-(v/c)~2]和万有引力定律在实际运用分析,并结合E=mc^2进一步分析得出新的质速关系式◎v=◎_0(1+v1/c^2)v。当v1=1米/秒,则有v趋近于c时lim◎v=e◎_0(e为常数)。这一结论否定了爱因斯坦关于物体的运动速度趋近于光速时,质量无限制增大的结论。在对物体相互作用分析中发现物体间相互作用存在两种力,一种是作用物体所施的力,另一种是被作用物体所受的力。物体在运动学中,由于速率变化,施力物体的性质,决定了受力物体所受力永远不存在恒定。从而得出被作用物体的加速度表达式为a(v)=(m/△t)(V_0-v)/◎_0(1+v_1/c^2)v进而得出受力物体所受力的表达式F(v)=◎va(v),为今后用力学研究物质运动准备了新的工具。 展开更多
关键词 质速关系式m=m0/√[1-(v/c)^2] 万有引力定律 质能关系式E=mc^2 作用力F=(m/△t)V0 被作用受力FV=(m/△t)(V0-v) 新的质速关系式◎v=◎0(1+v1/c2)^v 新加速度表达式a(v)=(m/△t)(V0-v)/◎0(1+v1/c2)^v 力学定理表达式F(v)=◎va(v)
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一种体积物态方程物理基础的讨论 被引量:1
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作者 李欣竹 吴强 《高压物理学报》 CAS CSCD 北大核心 2001年第2期155-160,共6页
对体积物态方程v -vc=(R/p) (h -hc)的物理基础进行了讨论。给出了该方程的一个统计力学形式证明 ,从而给出了方程中物质参数的微观定义 ,亦即给出了该方程的具体表达式。在R =R(p)假设下 ,给出了方程中物质参数的热力学表达式 ,通过分... 对体积物态方程v -vc=(R/p) (h -hc)的物理基础进行了讨论。给出了该方程的一个统计力学形式证明 ,从而给出了方程中物质参数的微观定义 ,亦即给出了该方程的具体表达式。在R =R(p)假设下 ,给出了方程中物质参数的热力学表达式 ,通过分析其与Debye理论下的对应态定律的一致性 ,证明了该假设的近似合理性 ,从而也就证明了该方程的成立并不受其建立时所依据的定压比热为常数这一过强条件的限制。进一步地 ,通过与物质参数热力学表达式常压实验值的比较 ,指出了单纯的R =R(p)假定存在一定的局限 ,该局限引起的偏差随温度的升高而增大 ,在常压下的高温区间 ,该偏差在 2 0 %左右。 展开更多
关键词 统计力学 固体物理 体积物态方程 力学表达式
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金属材料的超塑性
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作者 吴大风 《包头职业技术学院学报》 2004年第3期14-15,共2页
金属材料超塑性的研究和应用盛行于上世纪后叶,但目前尚未得到更多的专业人士认知。对金属材料有关的超塑性分类、变形机理、力学表达式、具备超塑性的条件以及加工方法进行了介绍。
关键词 金属材料 超塑性 变性机理 力学表达式 加工
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对物理化学中两个公式的异议 被引量:1
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作者 牛家治 《淮北煤师院学报(自然科学版)》 2001年第4期77-79,82,共4页
对理想气体化学势的统计表达式及过渡态理论中速率常数的热力学表达式重新推导,其结果与所见教材中的有所不同,在此提出讨论.
关键词 化学势 标准态 速率常数 物理化学 理想气体 统计表达式 力学表达式 过渡态
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Seepage-stress coupling constitutive model of anisotropic soft rock 被引量:2
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作者 张向霞 杨林德 闫小波 《Journal of Central South University》 SCIE EI CAS 2009年第1期149-153,共5页
To provide a seepage-stress coupling constitutive model that can directly describe the seepage-stress coupling relationship, a series of one-dimensional seepage-stress coupling tests on two kinds of soft rock (argilla... To provide a seepage-stress coupling constitutive model that can directly describe the seepage-stress coupling relationship, a series of one-dimensional seepage-stress coupling tests on two kinds of soft rock (argillaceous siltstone and brown mudstone) were performed by using an MTS-815.02 tri-axial rock mechanics test system, with which the stress-strain curves according to the seepage variation were obtained. Based on the experimental results and by employing Hooke's law, the formulation of the coefficient of strain-dependent permeability was presented and introduced to establish a coupling model. In addition, the mathematical expression and the incremental formulation for coupling model were advanced, in which five parameters that can be respectively determined by using the experimental results were included. The calculated results show that the proposed coupling model is capable of simulating the stress-strain relationship with considering the seepage-stress coupling in the nonlinear elastic stage of two kinds of soft rock. 展开更多
关键词 soft rock stress--strain relation seepage-stress coupling constitutive model coefficient of permeability
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Formulation of Green's Function in Solving Schroedinger Equation forBipartite System with Kinetic Coupling Gained by Virtue of Entangled States
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作者 FANHong-Yi LIUQiu-Yu 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第5期791-794,共4页
Using the entangled state representation we present a formulation of Green'sfunction in solving Schrodinger equation for bipartite system with kinetic coupling.
关键词 Green's function bipartite system kinetic coupling entangled staterepresentation
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Application of Tripartite Entangled State Representation in Solving the Dynamics of a Kind of Three Coupled Oscillators
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作者 PANGQian-Jun 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第6期1037-1041,共5页
We study the eigenstate problem of a kind of three coupled oscillators in anew quantum mechanical representation composed by the spontaneous eigenvectors 【 p,q_2,q_3| forthree operators (p_1 + p_2 + p_3), (x_3 - x_2)... We study the eigenstate problem of a kind of three coupled oscillators in anew quantum mechanical representation composed by the spontaneous eigenvectors 【 p,q_2,q_3| forthree operators (p_1 + p_2 + p_3), (x_3 - x_2), and (x_3 - x_1). The eigenvalues and eigenvectors ofthe Hamiltonian are obtained. With the same method, the eigenstate problem of a generalizedthree-coupled oscillator Hamiltonian is studied, which has never been studied before. 展开更多
关键词 entangled state representation coupled oscillator system
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Effect of Spatial Dimension and External Potential on Joule-Thomson Coefficients of Ideal Bose Gases
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作者 袁都奇 王参军 《Communications in Theoretical Physics》 SCIE CAS CSCD 2010年第4期669-672,共4页
Based on the form of the n-dimensional generic power-law potential, the state equation and the heat capacity, the analytical expressions of the Joule-Thomson coefficient (3TC) for an ideal Bose gas are derived in n-... Based on the form of the n-dimensional generic power-law potential, the state equation and the heat capacity, the analytical expressions of the Joule-Thomson coefficient (3TC) for an ideal Bose gas are derived in n-dimensional potential. The effect of the spatial dimension and the external potential on the JTC are discussed, respectively. These results show that: (i) For the free ideal Bose gas, when n/s ≤ 2 (n is the spatial dimension, s is the momentum index in the relation between the energy and the momentum), and T → Tc (Tc is the critical temperature), the JTC can obviously improve by means of changing the throttle valve's shape and decreasing the spatial dimension of gases. (ii) For the inhomogeneous external potential, the discriminant △= [1 - y∏^ni=1(kT/εi)^1/tiГ(1/ti+1)] (k is the Boltzmann Constant, T is the thermodynamic temperature, ε is the external field's energy), is obtained. The potential makes the JTC increase when △ 〉 0, on the contrary, it makes the JTC decrease when A 〈△. (iii) In the homogenous strong external potential, the JTC gets the maximum on the condition of kTεi〈〈1. 展开更多
关键词 ideal Bose gases Joule-Thomson coefficient spatial dimension external potential field
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New Physical and Chemical Constants and Prospects of Its Use for the Explicit Expression of Thermodynamic Functions
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作者 Vitaliy Malyshev Astra Turdukozhayeva 《Journal of Chemistry and Chemical Engineering》 2013年第5期468-482,共15页
Based on the analysis of the Boltzmann's distribution in an infinitely high temperature found degeneration of the thermodynamic system in a purely informational with independently of each particle on its energy level... Based on the analysis of the Boltzmann's distribution in an infinitely high temperature found degeneration of the thermodynamic system in a purely informational with independently of each particle on its energy level, thus providing them full visibility of and the ability to calculate the maximum entropy in the Boltzmann formula S∞ = R·InNA = 455.251 J/(mol.K). This value, when expressed in terms of fundamental constants, is itself a physical and chemical constants and mole monatomic ideal gas is unsurpassed in any studied temperature range. For complex substances this limit increases in direct proportion to their atomic. The existence of two limits entropy change--lower, equal to zero according to the third law of thermodynamics, and the top, equal to S∞, makes possible the explicit expression of the temperature dependence of the entropy in the form of an exponentialS=S∞exp[-5030.31p 2/5 /(M3/5T)](5/2)r e/s∞. rather than in the form of a logarithmic dependence of the infinite by the approximateformula Sakura-Tetrode with which this the dependence is almost identical in the studied temperature range (100-10,000 K), but not absurd negative entropy in the extrapolation formula Sakura-Tetrode absolute zero to the region and especially in the area of T → ∞where it turns S →∞. 展开更多
关键词 Boltzmann distribution THERMODYNAMICS ENTROPY heat capacity the probability.
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Connections of Coherent Information,Quantum Discord,and Entanglement
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作者 付慧娟 李军刚 +1 位作者 邹健 邵彬 《Communications in Theoretical Physics》 SCIE CAS CSCD 2012年第4期589-594,共6页
For a pure non-markovian dephasing model we derive analytic expressions of coherent information,quantum discord,and entanglement.We find that for the cases of the initial Werner states,the dynamical behavior of cohere... For a pure non-markovian dephasing model we derive analytic expressions of coherent information,quantum discord,and entanglement.We find that for the cases of the initial Werner states,the dynamical behavior of coherent information is similar to that of quantum discord but different from that of entanglement.Coherent information,as well as quantum discord,can reveal the quantum correlations in some mixed-states,in which the entanglement is zero. 展开更多
关键词 coherent information quantum discord ENTANGLEMENT
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A Theoretical Model to Explain the Mechanism of Electromagnetic Wave Propagation Along Cylindrical Micelles
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作者 Afshin Moradi 《Communications in Theoretical Physics》 SCIE CAS CSCD 2013年第7期136-138,共3页
A theoretical model to explain the mechanism of the electromagnetic wave propagation in the quasi two-dimensional layer of counterions adjacent to the surface of a charged cylindrical membrane is presented. By using M... A theoretical model to explain the mechanism of the electromagnetic wave propagation in the quasi two-dimensional layer of counterions adjacent to the surface of a charged cylindrical membrane is presented. By using Maxwell and hydrodynamic equations with appropriate boundary conditions, general expression of dispersion relation is obtained for the electromagnetic wave with mixed TE and TM modes. 展开更多
关键词 MICELLE electromagnetic wave dispersion relation
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