Enhanced Field Emission from Printed Carbon Nanotubes by Hard Hairbrush

A method, the morphology of screen printed carbon nanotube pastes is modified using a hard hairbrush, is presented. In this way, the organic matrix material is preferentially removed. Compared to those untreated films, the turn-on electric field of the treated film decreases from 2.2V/μm to 1.6V/μm, while the total emission current of the treated increases from 0.6mA/cm2 to 3mA/cm2, and uniform emission site density image has also been observed.     

偶极硬球流体第二维里系数的计算

在《热力学与统计物理》中,往往涉及到原子流体的维里系数的计算.作为研究偶极流体相行为的一个补充,同时为了加强学生对理论推导能力的训练,研究了偶极硬球流体的第二维里系数.首先把偶极硬球流体粒子间的各向异性势能写成旋转不变的形式,进而把相应的玻尔兹曼因子作泰勒展开,代入第二维里系数的公式中进行逐项积分计算,最后得到了偶极硬球流体第二维里系数的解析表达式.     

Subsurface subsidence prediction model and its potential applications for longwall mining operations

This paper summarizes the development of an enhanced influence function method to predict longwall mining induced subsurface subsidence.This model takes the stratifications of the overburden,particularly the massive hard rock (i.e.,limestone and sandstone) layers,into consideration.A new deformation term,total strain or void intensity,has been introduced and can be determined from the predicted subsurface movements.This term reflects the volumetric expansion of overburden rock under the influence of mine subsidence.A case study has demonstrated the applicability of the enhanced subsurface subsidence prediction model.     

Three new species of the genus Belbolla (Nematoda: Enoplida: Enchelidiidae) from the Yellow Sea,China

Three new species of free‐living marine nematodes of the genus Belbolla: Belbolla huanghaiensis sp. nov., Belbolla stenocephalum sp. nov. and Belbolla warwicki sp. nov. from the Yellow Sea, China, are described and illustrated. Belbolla huanghaiensis can be separated from other species in the Belbolla genus by the number of oesophageal bulbs (nine), the length of the spicules and gubernacular apophysis, and the size of the two winged precloacal supplements. Belbolla stenocephalum can be separated from other species by the number of oesophageal bulbs (eight), the length of the spicules and the structure of gubernacular apophysis. Belbolla warwicki sp. nov. is characterized by the number of oesophageal bulbs (seven), reduced precloacal supplements and the structure of gubernacular apophysis. A key to the genus Belbolla is provided to facilitate species identification. Types are deposited in the College of Life Science and Technology, Ocean University of China.     

A new genus and three new species of free‐living marine nematodes from the Yellow Sea,China

One new genus, Paramphimonhystrella gen. nov., and three new species of free‐living marine nematodes in this genus, P. elegans sp. nov., P. minor sp. nov., and P. sinica sp. nov., are described and illustrated from the Yellow Sea, China. Paramphimonhystrella gen. nov. differs from the similar genus Amphimonhystrella by the elongated buccal cavity, cervical setae and large caudal glands. Paramphimonhystrella elegans sp. nov. is characterized by ovoid amphids and spicules with a small hook at distal end and cylindrical part of tail shorter than conical part. Paramphimonhystrella sinica sp. nov. is characterized by circular amphids, wide buccal cavity, spicules with blunt tip, and cylindrical part of tail longer than conical part. Paramphimonhystrella minor sp. nov. differs from the other two species by its smaller body (shorter than 800 µm), circular amphids, and spicules with sharp tip. The type species of this new genus is P. elegans gen. nov. and sp. nov. Types are deposited in the College of Marine Life Sciences, Ocean University of China.     

民间美术作品与生活形态关联研究

耕织文化背景下产生的民间美术作品有着浓厚的田园文化气息,创作者的身份特征、行为方式、思想观念、生活信仰和生活理想,都受到农业生产环境和生产方式的影响。民间美术作品所反映出的乐观、积极的生活态度和幽默、风趣的主题思想,以及求真、求美、求活的创作思路等都体现了一种大智慧。同时,民间美术作品形象地表达出了底层人民的生活情结:对土地的敬畏,对生命的信仰,对财富的追求,对子女的教化和寻求身份的认同。     

浅析我国高校图书馆软实力的现状

从我国高校图书馆软实力与自身硬实力相比、与国外图书馆软实力建设相比、未来发展前景等3个方面,分析了我国大学图书馆软实力的现状。     

大学生校外租房住宿现象及其解决对策

当今，大学生校外租房住宿已成为一种普遍现象，很多大学生因各种各样的原因都选择到校外租房住宿，大学生校外租房住宿给大学生自身、家庭、学校、社会等都带来诸多不利因素。因此，要解决这一问题，应做到：加强思想政治教育，引导大学生树立正确的世界观、人生观和价值观；加强学校教育管理，使校园真正成为大学生学习生活的精神家园和心灵故乡；加大社会正面舆论宣传，争取外部支援。     

人在电脑网络社会中虚拟生存的意义性解读——消解虚拟生存异化状态的理性分析

人在电脑网络社会中虚拟生存的外在矛盾已经被当代科技文明所扬弃并转化为人自身的内在矛盾。随着这种生存方式在现实生活世界中的展开，虚拟生存将人生存的内在矛盾自觉地推到了生活层面的同时也附着了生成种种畀化状态的可能性。在消解虚拟生存的种种异化状态过程中，需要建构的是意义性生存的网络生活世界。     

PCBN刀具硬态切削淬硬轴承钢的数值模拟与实验研究

通过运用建立的倒棱PCBN刀具切削淬硬轴承钢GCr15热力耦合有限元模型,研究了锯齿形切屑形成过程中,倒棱角度对切削力和切削温度分布的影响规律.通过切削实验对有限元结果进行验证,发现二者具有较好的一致性.研究结果表明:随着倒棱角度的增大,主切削力和径向力增大,径向力增加尤为显著,整个切削过程中径向力都小于主切削力.切削温度随着倒棱角度的增大也逐渐增大,最高切削温度位于切屑和倒棱刃口接触表面上距离刀尖0.1-0.15mm处.锯齿形切屑产生导致切削力周期性变化.