Controlled synthesis of porous particles via aerosol processing and their applications

Aerosol processes such as spray drying and/or spray pyrolysis for the controlled synthesis of porous particles were introduced in this review. Typical experimental setup, general experimental procedure for the preparation of porous particles, as well as key factors affecting the properties of final porous particles, was described. We then discussed the various routes for the controlled synthesis of porous particles: (1) the preparation of self-assembled porous particles with ordered pores by using organic template particles; (2) the preparation of pore size- and porosity-controlled particles from aggregated nanoparticles; (3) the preparation of nanoparticle-laden encapsulated porous particles from graphene nano-sheets and nanoparticles. Finally, we introduced interesting applications of the porous particles such as photocatalysts, drug delivery carriers, and biosensors.     

Progress of electrochemical capacitor electrode materials: A review

The electrode is the key part of the electrochemical capacitors (ECs), so the electrode materials are the most important factors to determine the properties of ECs. In this paper, the storage principles and characteristics of electrode materials, including carbon-based materials, transition metal oxides and conductive polymers for ECs are depicted briefly. Among them, more work has been done using microporous carbons than with the other materials and most of the commercially available devices use carbon electrodes and organic electrolytes. But the composites of pseudocapacitive and carbonaceous materials are promising electrode materials for ECs because of their good electrical conductivity, low cost and high mass density.     

Gate-keepers or judges: peer reviews in construction management

Peer review has a momentous influence upon the lives of those who seek to publish, upon the credibility of an academic discipline and upon the way it develops. It is used widely within the academic community on the assumption that it encourages high standards of scholarly writing by providing an informed, fair, reasonable and professional opinion about the merits of research work. This paper reports an experiment which tested the extent to which peer review in construction management serves this function. The results indicate that the outcome of the peer review process is not significantly different from random, and that there is little consistency in the reasons advanced for rejection or revision.     

钻井过程中岩屑运移模型研究进展

随着斜井和水平井数量的不断增加，井眼清洁已成为钻井的关键技术和难题之一。在过去的60多年里，人们对钻井过程中的岩屑运移问题进行了大量的实验和理论研究，对这一课题有了较多的认识，建立了一些模型，为实际钻井过程中水力参数设计提供了有效的依据。本文对描述岩屑运移规律的经验模型和分层理论模型进行了系统的总结，并专门对泡沫携岩模型进行了总结，在此基础上对岩屑运移模型的发展进行展望，最后给出了研究建议，为今后深入开展岩屑运移研究提供参考。     

建设“理想城市”需要更科学更务实的城市规划 2007版纽约城市规划的经验借鉴及其对我们的启示

面临城市化进程不断加快、人口持续增长和资源短缺日益严重等一系列严峻挑战,通过空间规划建设可持续发展的＂理想城市＂已成为当前备受关注的问题。以纽约2007年版城市规划为研究范例,其科学的编制过程、务实的实施措施,在引领城市发展成功转型中起到了重要的作用。纽约规划的经验,对于致力于建设＂理想城市＂的广东具有十分重要的启示。...     

关于“理想城市”的几点感知

在未来的20年,世界城市将以史无前例的速度和规模迅猛扩张。其中正在崛起的亚洲地区,特别是中印两国被认为是最典型的案例。交通拥堵,环境污染,房价飞腾,健康危害,安全弱化,文化丧失等问题造就了多种多样的城市病,离开了人,城市就不付存在。城市的所有问题都是由人而引发,中国城市最缺的不是知识、历史、也不是硬件的基础建设,而是城...     

西南石油学院校园规划设计的回顾与探讨

本文回顾了我院建院三十五年来，特别是学院扩建工程初步设计及校园总体规划实施前后的校园建设历程，分析了校园规划设计中的成败得失，并对今后的校园建设及规划设计作了有益的探讨，提出了一些建设性的意见．     

冷冻干燥技术在材料制备领域的应用研究进展

介绍了冷冻干燥技术的基本原理和特点，简要综述冷冻干燥技术在国内外材料制备领域的研究进展，并对冷冻干燥技术在材料制备领域的发展方向做出预测。     

河冰生消演变及其运动规律的研究进展

河冰是在特定的气象条件、地形河势和水力作用下产生的自然现象。研究河冰生消演变及其运动规律 ,从而根据气象、水文、冰情历史资料、现时信息和河道特征 ,应用热力学和水力学原理 ,对各种冰情要素进行预报 ,防治冰凌危害 ,是寒冷地区国家发展中必须考虑的一个重要问题。本文对河道中冰的形成、演变发展、输移、积聚堆积、消融和破碎冲蚀等各种冰情现象及其研究现状进行了分析总结 ,着重介绍国外最近的研究成果。     

水力旋流器的理论研究进展与评述(上)

从水力旋流器的速度场、压力分布和能量损失以及工艺计算等几个方面评述了水力旋流器理论研究的最新成就,对指导旋流器的设计与生产有一定的现实意义。