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An Implementation Model of Parlay MMCCS API Based on SIP

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The Journal of China Universities of Posts and Telecommunications 2006年第2期13卷 43-49页

作者： GUAN you-qing SheN Su-bin Research Center of Network Technology Nanjing University of Posts and Telecommunications Nanjing 210003 P.R. China

Parlay Multi Media Call Control Services （ MMCCS） Application Programming Interfaces （API） based on Session Initiation Protocol （SIP） is essential for the implementation of Parlay Call Control （ CC） API. This paper first proposes an implementation model of Parlay MMCCS API based on SIP, then presents a mapping between SIP and MMCCS AP1 as far as methods and parameters are concerned, illustrates corresponding relationships between different components of SIP and MMCCS API by means of an application collaboration diagram, and finally presents an application using Java codes as well as some SIP messages. The application shows that a majority of MMCCS API based on SIP can be implemented and therefore verifies our mapping between MMCCS API and SIP.

关键词： SIP parlay MMCCS API

Direct hydride derivatization of methyl- and ethylmercury chlorides in aqueous solution with KBH_4

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Journal of Environmental Sciences 2000年第3期12卷 275-278页

作者： he bin JIANG Gui-bin Research Centre for Eco Environmental Sciences Chinese Academy of SciencesBeijing 10085China

A convenient hydride derivatization procedure of methyl\|and ethylmercury chlorides to volatile hydrides was reported. In sealed vials methylmercury and ethylmercury compounds in acidic aqueous solutions were converted into their volatile forms by the reaction with potassium tetrahydroborate(KBH 4) and elvolved to the headspace of the vials. The gaseous analytes in the headspace were extracted and concentrated by solid phase microextraction(SPME) and injected into gas chromatography (GC) for separation and identified by mass selective detector(MS).

关键词： hydride derivatization methyl\| and ethylmercury gas chromatography mass selective detector

Statistical Inference for Partially Linear Regression Models with Measurement Errors

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Chinese Annals of Mathematics,Series B 2008年第2期29卷 207-222页

作者： Jinhong you Qinfeng XU bin ZHOU Department of Biostatistics University of North Carolina at Chapel Hill Chapel-Hill NC 27599-7400 USA Corresponding author. School of Mathematical Sciences Fudan University Shanghai 200433 China Department of Statistics East China Normal University Shanghai 200062 China

In this paper,the authors investigate three aspects of statistical inference for the partially linear regression models where some covariates are measured with ***, a bandwidth selection procedure is proposed,which is a combination of the differencebased technique and GCV ***,a goodness-of-fit test procedure is proposed, which is an extension of the generalized likelihood ***,a variable selection procedure for the parametric part is provided based on the nonconcave penalization and corrected profile least *** as＂Variable selection via nonconcave penalized likelihood and its oracle properties＂（***.,96,2001,1348-1360）,it is shown that the resulting estimator has an oracle property with a proper choice of regularization parameters and penalty *** studies are conducted to illustrate the finite sample performances of the proposed procedures.

关键词： Partially linear model Measurement error Bandwidth selection Goodness-of-fit test Oracle property

Well-posedness in the Energy Space for Non-linear System of Wave Equations with Critical Growth

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Acta Mathematica Sinica,English Series 2008年第1期24卷 17-26页

作者： Chang Xing MIAO you bin ZHU Institute of Applied Physics and Computational Mathematics P. O. Box 8009 Beijing 100088 P. R. China Department of Mathematics Xidian University P.O.Box 245 Xi'an 710071 P. R. China

The authors consider the well-posedness in energy space of the critical non-linear system of wave equations with Hamiltonian structure{utt-△u=-F1（｜u｜^2,｜v｜^2）u,utt-△u=-F2（｜u｜^2,｜v｜^2）u where there exists a function F（λ,μ） such that δF（λ,μ）/δλ=F1（λ,μ）.δF（λ,μ）/δμ=F2（λ,μ） By showing that the energy and dilation identities hold for weak solution under some assumptions on the non-linearities, we prove the global well-posedness in energy space by a similar argument to that for global regularity as shown in ＂Shatah and Struwe＇s paper, Ann. of Math. 138, 503-518 （1993）＂.

关键词： dilation identity Besov space energy solution Strichartz estimates local energy identity

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基于注意力循环神经网络的联合深度推荐模型

现代电子技术 2025年第1期48卷 80-84页

作者：郭东坡何彬张明焱段超江汉大学湖北武汉430056 华中师范大学湖北武汉430079 浙江师范大学浙江省智能教育技术与应用重点实验室浙江金华321004

为了向用户推荐符合兴趣偏好的项目,设计一种基于注意力循环神经网络的联合深度推荐模型。将双层注意力机制设置于网络中,该模型由五个部分构成,在输入层中生成联合深度推荐模型的输入矩阵,通过序列编码层对项目评论文本语义展开正向和... 详细信息

为了向用户推荐符合兴趣偏好的项目,设计一种基于注意力循环神经网络的联合深度推荐模型。将双层注意力机制设置于网络中,该模型由五个部分构成,在输入层中生成联合深度推荐模型的输入矩阵,通过序列编码层对项目评论文本语义展开正向和反向编码,获得隐藏状态输出,并将其输入双层注意力机制中,提取项目特征,利用全连接层提取用户偏好特征。在预测层中建立项目与用户的交互模型,获得项目评分,为用户推荐高评分的项目。为了提高模型精度,加权融合MSE损失函数、CE损失函数和RK损失函数建立组合损失函数,对深度联合训练模型展开训练,提高模型的推荐性能。仿真结果表明,所提方法具有良好的推荐效果,能够适应不断变化的市场需求和用户行为。

关键词：双层注意力机制循环神经网络用户偏好组合损失函数交互模型联合深度推荐模型

Exact explicit solitary wave and periodic wave solutions and their dynamical behaviors for the Schamel–Korteweg–de Vries equation

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Chinese Physics B 2021年第6期30卷 62-76页

作者： bin he Qing Meng College of Mathematics and Statistics Honghe UniversityMengzi 661100China

The Schamel–Korteweg–de Vries equation is investigated by the approach of *** existences of solitary wave including ω-shape solitary wave and periodic wave are proved via investigating the dynamical behaviors with phase space *** sufficient conditions to guarantee the existences of the above solutions in different regions of the parametric space are *** possible exact explicit parametric representations of the waves are also *** with the details of the analyses,the analytical results are numerically simulated lastly.

关键词： Schamel–Korteweg–de Vries equation dynamical behavior solitary wave solution periodic wave solution

Effects of fabricated error on transmission performance of double layer frequency selective surface configuration

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光学精密工程 2005年第5期13卷 599-603页

作者： he bin SUN Lian-chun Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130033China

Based on the experimental results, in which the fabricated error of the double layer frequency selective surface (FSS) leads to the transmission loss and the resonant frequency leaves away the design resonant frequency, the inter-layer separation distance (ISD) and the unit cell aligning error (UAE) were used as main variables to study the transmission performance attenuation of the double layer FSS configuration. The numerical analysis model for ISD and UAE was established and also was used to simulate the ring unit cell FSS transmission performance by the finite element and periodic moment methods. The double layer ring aperture FSS configuration designed was used as the numerical model. As a result of the numerical analysis, it is shown that both ISD and UAE produce insertion transmission loss (ITL) and insertion phase distortion (IPD) directly. Furthermore, ISD results in more loss of the amplitude of the transmitted signal for the FSS than UAE. It is significant for the designer of the multiplayer FSS to assign the fabricated error of the FSS dielectric layers. The UAE introduces the insertion phase variation badly.

关键词： FSS 平衡性 ISD 结构设计 UAE 光学机械

Concomitant Photoresponsive Chiroptics and Magnetism in Metal-Organic Frameworks at Room Temperature

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Research 2021年第1期2021卷 265-276页

作者： bin Xia Qian Gao Zhen-Peng Hu Qing-Lun Wang Xue-Wei Cao Wei Li you Song Xian-he Bu College of Chemistry State Key Lab of Elemento-Organic ChemistryNankai UniversityTianjin 300071China School of Physics Nankai UniversityTianjin 300071China School of Materials Science and Engineering Tianjin Key Lab of Metal and Molecule-Based Material ChemistryNankai UniversityTianjin 300350China State Key Lab of Coordination Chemistry School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Stimulus-responsive metal-organic frameworks(MOFs)can be used for designing smart ***,we report a family of rationally designed MOFs which exhibit photoresponsive chiroptical and magnetic properties at room *** this design,two specific nonphotochromic ligands are selected to construct enantiomeric MOFs,{Cu_(2)(L-mal)_(2)(bpy)_(2)(H_(2)O)·3H_(2)O}n(1)and{Cu_(2)(D-mal)_(2)(bpy)_(2)(H_(2)O)·3H_(2)O}_(n)(2)(mal=malate,bpy=4,4’−bipyridine),which can alter their color,magnetism,and chiroptics concurrently in response to *** UV or visible light irradiation,long-lived bpy−radicals are generated via photoinduced electron transfer(PET)from oxygen atoms of carboxylates and hydroxyl of malates to bpy ligands,giving rise to a 23.7%increase of magnetic susceptibility at room *** participation of the chromophores(-OH and-COO^(−))bound with the chiral carbon during the electron transfer process results in a small dipolar transition;thus,the Cotton effects of the enantiomers are weakened along with a photoinduced color *** work demonstrates that the simultaneous responses of chirality,optics,and magnetism can be achieved in a single compound at room temperature and may open up a new pathway for designing chiral stimuli-responsive materials.

关键词： temperature. materials. optics

Kinematic and mixing characteristics of vortex interaction induced by a vortex generator model:a numerical study

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Applied Mathematics and Mechanics(English Edition) 2021年第3期42卷 387-404页

作者： Ziang WANG bin YU bin ZHANG Miaosheng he Hong LIU School of Aeronautics and Astronautics Shanghai Jiao Tong UniversityShanghai 200240China

The underlying effect of vortex interaction characterized by the merging and non-merging on mixing enhancement is of fundamental significance to understand the flow dynamics of strut injectors in *** from a simplified configuration of a vortex generator,this study focuses on the influence of geometric parameters on vortex structures and fluid mixing through compressible Navier-Stokes(NS)*** adjusting the induction of outer vortices,the inner co-rotating vortex pair exhibits two modes of interaction(merging/separation regime)reflected by closer/farther vortex *** by the zero variation rate of the inner vortex spacing,the critical state of equilibrium is *** critical condition is well predicted by a theoretical model based on the Biot-Savart *** the introduction of mixedness and mixing time,the intrinsic impact of interaction modes on fluid mixing is *** with the vortex dynamics in the merging regime,the one in the separation regime is more effective for passive scalar mixing *** efficient material stretching characterized by the higher interface stretching factor and averaging finite-time Lyapunov exponent(FTLE),the mixing time is shortened by as much as 2.5 times in the separation *** implication of the present two interaction regimes in mixing enhancement physically reflected by the averaging FTLE has the potential to improve the combustion performance and shorten the combustor chamber.

关键词： vortex interaction mode fluid mixing Lagrangian coherent structure(LCS) stretching effect