我国商界网络公关的现状与反思-以腾讯360之争为例

以腾讯与360恶性竞争为例,研究了网络公关的发展问题,深入分析了事件原因、发展等,揭示了商业世界的隐秘公关战争,分析了社会网络公关的现状以及对它的反思．认为政府应加强对网络的监督与管理,以便为网络公关行业提供良好的发展环境．     

奥巴马2008年总统竞选中的网络公关探析

奥巴马2008年总统竞选中网络公关的成功实践表明:网络公关有助于竞选者形象的塑造,可以更有效地宣传竞选者的政策主张,进一步加强竞选者与选民的联系。奥巴马总统竞选中网络公关的成功,首先是对网络公关进行了周密设计,其次在网络公关活动中注意综合运用各种网络公关的方法手段,把各种网络公关的方法手段结合起来,从而形成一整套的网络公关方略活动。奥巴马网络公关的成功经验值得学习借鉴。     

西门子“冰箱门”危机公关案例

近年来随着互联网的不断普及,网络既成为企业宣传的有力工具,也可能为企业的危机的发源地与扩散地。本文主要通过西门子失败公关案例,总结现代网络背景下危机公关的新特点,分析公关成败原因,以期对国内企业应对危机有所借鉴。     

网络公关及其传播方式研究

网络公共关系是新经济条件下公共关系的全新表现形式 ,并日益成为现代企业和跨国公司关注的焦点及战略基点。本文全面、系统地阐述了相比较于传统的公共关系活动 ,网络公关所具有的内涵、发展历程、规则及特点等 ,并重点描述了网络公关的主要传播工具、窄段传播方式等内容     

略论学报编辑的公关艺术

本文全面阐述了学报编辑的公关艺术,深入探讨了公关策划艺术和技巧艺术,对于编辑应具备的公关修养和面对不同对象的公关艺术也作了详尽的讨论.     

浅析微博中危机公关的新特性

正式宣告新媒体入住文明社会的发展之际,相继而来的就是各种危机层出不穷,不论是对个人还是企业的处理危机公关的能力提出很大挑战.本文从中选取“麦当劳315”和“西门子冰箱”两个案例分析微博时代下,危机公关的新特征,同时,通过两起典型的微博类危机公关事件,提出危机公关处理新表现.     

大学生公关技能训练存在的问题及对策——当代大学生公关素质教育研究课题报告之六

<正> 在当今竞争激烈的社会里,综合实力的较量已经成为了必然。作为新世纪的大学生要在今后的竞争中立于不败之地,应该掌握一些公共关系方面的基本知识。公关的核心是公关意识,但是公关人员的知识结构和公关能力在不同的程度上都对公关事业产生了巨大的影响。     

对Web2．0时代企业网络危机呈现新特点的思考

随着互联网进入Web2．0时代,博客,社区等个人媒体崛起,改变了传统的主流媒体控制话语权的格局,许多企业沿用传统的危机公关理论,却没有应对好网络危机,造成了消费者流失,品牌价值下降,甚至有些企业被逐出了市场。本文提出了在web2．0时代,应根据网络危机公关的新特点。采用新危机公关策略,控制危机的影响。     

个体公关——公关教学中理论和实践的结合点

在公共关系学的教学中,理论和实践的结合已成为业内同仁的共同追求;然而,由于在公关主体的定位上面的局限性,学生的参与热情并不高。而唯有走个体公关的路,以“公关智慧”为教学的核心内容,才能实现公共关系教学中理论和实践的密切结合,在公共关系教学实践中切实地贯彻素质教育的原则。     

高校危机公关研究现状和重点分析

高校的危机公关是高校危机管理的重要方面,但由于高校危机公关的意识依然淡薄,危机公关的经验和能力普遍欠缺导致高校危机处理不到位。本文从高校管理的角度审视高校危机公关的重要性,分析了国内外对高校危机公关的研究现状,并从精细管理、信息有效传输、善后恢复等方面对危机公关提出了研究重点的设想。     

盾构机密封舱渣土非线性本构模型参数识别

根据密封舱改性渣土的三轴压缩实验数据,建立了基于优化方法的Duncan-Chang双曲线本构模型参数反演方法。为了解决参数识别反问题解的不稳定性问题,在Gauss-Newton优化迭代算法的基础上,提出了正则化参数反演方法。实际应用结果表明,所提出的反演方法具有较快的收敛速度和较强的鲁棒性,预测的实验模型变形与实验值吻合较好。     

Electrochemical properties of LiNi<Subscript>0.5</Subscript>Mn<Subscript>1.3</Subscript>Ti<Subscript>0.2</Subscript>O<Subscript>4</Subscript>/Li<Subscript>4</Subscript>Ti<Subscript>5</Subscript>O<Subscript>12</Subscript> cells

Spinel compounds LiNi_0.5Mn_1.3Ti_0.2O₄ (LNMTO) and Li₄Ti₅O₁₂ (LTO) were synthesized by different methods. The particle sizes of LNMTO and LTO are 0.5–2 and 0.5–0.8 μm, respectively. The LNMTO/LTO cell exhibits better electrochemical properties at both a low current rate of 0.2C and a high current rate of 1C. When the specific capacity was determined based on the mass of the LNMTO cathode, the LNMTO/LTO cell delivered 137 mA·h·g⁻¹ at 0.2C and 118.2 mA·h·g⁻¹ at 1C, and the corresponding capacity retentions after 30 cycles are 88.5% and 92.4%, respectively.     

Kinetic parameters of oscillating reaction of amino acid- BrO3^——Mn^2＋-H2SO4-acetone system

In the previous papers[1—3], the oscillating reactionusing amino acids as organic substrates was studied. Inorder to obtain information about the kinetic parameters ofoscillating reaction of amino acids in amino acid- BrO3 - ?Mn2 -H2SO4-acetone sy…     

Preparation of Al<Subscript>72</Subscript>Ni<Subscript>8</Subscript>Ti<Subscript>8</Subscript>Zr<Subscript>6</Subscript>Nb<Subscript>3</Subscript>Y<Subscript>3</Subscript> amorphous powders and bulk materials

Amorphous Al₇₂Ni₈Ti₈Zr₆Nb₃Y₃ powders were successfully fabricated by mechanical alloying. The microstructure, glass-forming ability, and crystallization behavior of amorphous Al₇₂Ni₈Ti₈Zr₆Nb₃Y₃ powders were investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), and differential scanning calorimetry (DSC). The isothermal crystallization kinetics was analyzed by the Johnson–Mehl–Avrami equation. In the results, the supercooled liquid region of the amorphous alloy is as high as 81 K, as determined by non-isothermal DSC curves. The activation energy for crystallization is as high as 312.6 kJ·mol?1 obtained by Kissinger and Ozawa analyses. The values of Avrami exponent (n) imply that the crystallization is dominated by interface-controlled three-dimensional growth in the early stage and the end stage and by diffusion-controlled two- or three-dimensional growth in the middle stage. In addition, the amorphous Al₇₂Ni₈Ti₈Zr₆Nb₃Y₃ powders were sintered under 2 GPa at temperatures of 673 K and 723 K. The results show that the Vickers hardness of the compacted powders is as high as Hv 1215.     

Acid etching process for fabrication of Bi2Sr2CaCu2O8＋x stack

We adopted a new method, acid etching process, to fabricate the intrinsic Josephson junctions based on the Bi2Sr2CaCu2O8 x single crystals. By soaking the crystals into the dilute hydrochloric acid, we fabricated a junction stack successfully, and meantime made the surrounding area insulated. A certain concentration of hydrochloric acid was used to maintain the roughness of the modified layer. The cur-rent-voltage characteristic was achieved through the four terminal measurement. We could control the junctions' number by changing the concentration and the soaking time. We also found that the thick-ness of the stack was equal to the average height of the insulation layer. Such a simple, convenient and controllable fabrication method with a high yield might widen the applications of the intrinsic Joseph-son junctions.     

Investigation on high magnetoresistance Ni0.81Fe0.19 films grown on （Ni0.81Fe0.19）1-xCrx underlayers

We have fabricated Ni0.18Fe0.19 films with (Ni0.18Fe0.19)1-xCrx films as underlayers by dc magnetron sputtering, the results show that larger anisotropic magnetoresistance (△R/R) values of Ni0.18Fe0.19 films are observed using the underlayers with Cr concentration of -36 at.% at an optimum underlayer thickness of -4.4 nm, the maximum AMR value is 3.35%. The results of atomic force microscope (AFM) and X-ray diffraction (XRD) show that the △R/R enhancement is attributed to the formation of large average grain size and the strong(111)texture in the Ni0.18Fe0.19 films.     

基于遗传算法的带附加气室空气悬架多目标优化

以带附加气室的空气弹簧悬架为研究对象,按照物理模型建立带附加气室空气弹簧的数学模型,考虑到空气弹簧刚度的非线性,将该模型以空气弹簧非线性力的形式直接引入到1/4车辆模型。以提高车辆平顺性、行驶安全性及操纵稳定性的综合性能为目标,以附加气室容积为优化变量,设计带附加气室空气悬架的多目标优化模型;考虑到悬架性能各指标量在量纲与量级上的差异,对各指标量进行统一化处理,并采用线性加权和法将多目标函数转化为单目标评价函数。在MAT-LAB/Simulink中搭建系统仿真模型,采用遗传优化算法对典型工况下的最优附加气室容积进行寻优。优化结果表明,优化附加气室容积能有效提高悬架的综合性能,降低车身加速度、悬架动行程,但轮胎动载荷有所增加。     

Rolling-induced microstructure change in Zr_（65）Al_（7.5）Ni_（10）Cu_（12.5）Ag_5 bulk metallic glass

The microstructures and free-volume evolutions of as-cast and pre-annealed Zr65Al7.5Ni10Cu12.5Ag5 bulk metallic glasses during rolling deformation have been investigated. No phase transformation is detected in the as-cast/rolled specimen. However,the structural stability of the glass against plastic deformation is worse after pre-annealing,indicated by nanocrystallization in preannealed/rolled specimens with large deformation degrees. Moreover,with increasing deformation degree,the free-volume content in a pre-annealed/rolled specimen increases at a lower average rate than that in an as-cast/rolled specimen.     

Synthesis, Characterization and Calorimetry of Ni（C4H8N2O3）2Cl2

A coordination complex was synthesized from NiCl2 and dipeptide glycylglycine（GG）. It was characterized by element analysis, NMR and TG methods, and then was determined to be Ni（C4HsN2O3）2Cl2. Using an isoperibolic reaction calorimeter, the standard molar enthalpy of formation of Ni（GG）2Cl2（solid） has been determined to be -（1 674.66±2.02） kJ · mol^-1 at 298.15 K.     

Work toughening effect in Zr_（41）Ti_（14）Cu_（12.5）Ni_（10）Be_（22.5） bulk metallic glass

Work hardening is a well-known phenomenon occurring in crystalline metals during deformation,which has been widely used to increase the strength of metals although their ductility is usually reduced simultaneously. Here we report that the plastic strain of Zr41Ti14Cu12.5Ni10Be22.5 (at.%) bulk metallic glasses has been increased from 0.3% for the as-cast sample to 2.5%-8.0% for samples that have experienced pre-deformation under constrained conditions. The pre-deformed glassy alloys possess more free volume and abundant introduced shear bands,which are believed to promote the activation of shear bands in post-deformation and result in an increase in plasticity. The orientation of the pre-introduced shear bands relative to the loading direction will affect the deformation behavior of pre-deformed samples. The present results show that pre-deformation of this glassy alloy will result in work toughening. This work toughening effect can be removed by isothermal annealing at a sub-Tg (glass transition) temperature,which causes annihilation of free volume and healing of shear bands.