经编针织运动服装的织物性能研究

从人体穿着舒适性能考虑,织物的热湿舒适性越来越成为人们重视的服用性能.本文针对功能性的针织运动服的原料选用和织物组织结构,分析其导湿性.     

尿不湿的服用舒适性探讨

本文在介绍尿不湿物服用舒适性关键因素的基础上,分析了尿不湿在给人们带来舒适方便的同时对人体可能造成的一些不良影响。     

细旦丙纶短纤织物服用舒适性分析

为探讨细旦丙纶短纤织物的服用舒适性,根据测试得出的细旦丙纶短纤织物、对比织物棉及细旦丙纶长丝等3类样本的各项服用性能指标数据,运用聚类分析及对应分析的数理统计方法,分析了此3类织物的优缺点,得出了细旦丙纶短纤织物独特的服用舒适性能;并优化出了该织物具有最佳服用舒适性的组织结构模型.     

辐射供冷空调系统下的人体热舒适性研究

为了深入研究辐射供冷空调系统下的人体热舒适性,对辐射供冷空调系统的传热机理进行了分析,合理简化了人体热平衡方程,获得了人体显热散热量、辐射对流散热量比与热舒适性的关系。实验及数值模拟结果表明:在辐射供冷空调系统下,人体热舒适性指标(PMV)与人体显热散热量之间具有较好的线性关系,利用该线性关系,可从人体热平衡的角度直接对人体热舒适性进行评价;人体辐射对流散热量比与热舒适性指标之间没有明显的相关关系,即人体辐射对流散热量比对热舒适性没有影响。因此,在保证人体热舒适性的基础上,可以通过提高人体辐射对流散热量比,即使辐射供冷空调系统具有较大的辐射末端面积、较低的辐射末端温度或较高的送风温度,从而达到建筑节能的效果。此项研究可为辐射供冷空调系统的热舒适性评价及系统设计提供参考。     

体育防护用品的压力舒适性及运动功能性探讨

探讨服装压对体育防护用品运动功能及穿着舒适性的影响.通过实验得出以下结论(1)人体皮肤对服装压的主观感受随着受压强度、作用时间、受压部位及运动状态的不同而异;(2)人体在通常状态下,前臂、小腿及腰部等部位所需要的舒适服装压较小(490～2600Pa),但在剧烈运动时所需舒适压力要比一般状态下大1960Pa左右;(3)人体各部位都有其舒适压力范围和最大可承受的压力极限,故服装压的大小直接影响体育防护用品的运动功能及穿着舒适性.     

热环境中针织面料穿着舒适性影响因素的研究

从人体穿着舒适的要求出发,对热环境中针织面料的穿着舒适性进行了研究,找出影响针织面料舒适性的某些织物结构参数,为功能性织物设计、生产及服装选料提供一定的参考.     

高速铁路人车系统动力响应及乘客舒适性评价

将人体视为依附于车厢底板的单自由度系统,在考虑车体弹性振动的基础上建立高速铁路人车系统动力分析模型,以人体振动响应为基础数据研究车辆运行过程中的乘客舒适性问题.选用德国低干扰谱作为外部激励,分析人体振动与车体振动的差异,研究车辆运行速度、车体弹性振动对乘客舒适性的影响.研究结果表明:单纯采用车体振动来表征人体振动会高估乘客的舒适性等级;频率为1 Hz左右时,振动量在人体响应中有所放大,该频率处在乘客舒适性敏感频率范围内,可能会对乘客造成影响;波长15 m左右导致的激扰频率增大了人体响应,可见,长波长对人体响应的影响较为明显,以车体响应为基础的评价中难以体现这一现象.     

透湿透气卫生舒适的面料“透湿王”

评价服装和面料的两大功能是美学效果和服用舒适.浙江省淳安县二轻丝绸服装(集团)公司一厂和有关科研单位共同研制的仿麻面料“透湿王”,在服用舒适功能方面取得了较好的成果.该科研项目利用中国科学院高科技超细旦丙纶长丝交织特种纤维的移湿功能及卫生性,即通过组织结构的设计,使特种纤维位于面料的里层,涤纶弹力丝位于外层,以改变人体皮肤     

合体裤的压力舒适性

选取4种延伸性不同的裤装面料并分别制作成款式和规格相同的合体裤,通过穿着试验,结合主观评价法对4条合体裤的压力舒适性进行评价.结果表明,人体姿势不同、身体部位不同及面料延伸性差异,均会对合体裤的压力舒适性有显著影响.     

人体生物力学模型的驾驶舒适度仿真研究

为了高效地评价人在驾驶汽车过程中的舒适性,由Adams/LifeMode软件建立了坐姿人体-座椅系统的生物力学模型.应用Matlab工具编程,得出了GB7031规定的B、C级公路的功率谱函数,并转换成易于加载的时域信号.通过加权计算,得到了在典型行驶速度下人体关键部位的振动加速度响应,进而提出了全身振动以及人体局部振动的舒适性仿真评价方法.采用Adams/LifeM-ode软件,建立了有别于传统弹簧—阻尼—质量模型的人体生物力学模型,实现了乘坐舒适性评价的计算过程,为研究人体局部振动舒适性提供了理论基础.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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