大力发展循环经济实现企业可持续发展

莱钢始建于1970年1月,现控股莱钢股份、鲁银投资两个上市公司及齐鲁证券等25个子公司。莱钢是中国冶金行业首批通过ISO9002质量管理体系、ISO14001环境管理体系和OHSAS18001职业安全健康管理体系国家认证的企业。2005年,莱钢被国家发改委确定为国家第一批循环经济试点单位。     

浅谈低温地面辐射采暖的利弊及隐患的避免

本文主要对低温地面辐射采暖的利弊及其隐患和隐患的避免加以分析、探讨。     

一幅画

从吃饱到吃好、吃精至吃的环境,人们对生活的要求逐渐趋向艺术化,餐馆老板会把环境设计与经营放在同等地位,所以好的餐饮空间层出不穷,也是社会发展的必然产物。位于宁波老外滩的瀚珍舫餐馆,建筑一层的面积较小,二、三层呈狭长形,做为餐馆这样的建筑条件并不理想,设计师把包厢和雅座设置在两边,这样走廊显得更幽深,柱子阵列得更有气势。拆除原先的楼梯,做了一部上下错位且不规则楼梯,曲折向上,增强了空间的层次。通顶的储酒柜,从三楼悬下的八米长吊灯,把一至三楼不落痕迹地融为一体。要设计一个好作品,设计师的构想需要不停地游走。碰撞的激情仿佛是一幅画,渐渐地,它的轮廓清晰了,色彩明朗了,它的主题神秘而遥不可及,每个人的心扉都有不同的暗香飘逸。掩映在现代手法中的精致、深沉从骨子里透出古典优雅     

担载型含稀土三组份体系在二氧化碳甲烷化反应中的催化性能

用浸渍法制备了一系列氧化锆担载的含稀土Ⅷ族金属催化剂，对其在二氧化碳甲烷化过程中的催化活性作了研究，并用漫反射紫外可见光谱，ＦＴＩＲ等手段对催化剂作了表征。结果表明，含稀土新型催化剂具有催化活性高，目标产物选择性好等优点；稀土主要以氧化物形式存在于催化剂表面，参与对氢及表面含碳物种的吸附及活化；含稀土三组份催化剂的活性与所添加稀土三价离子的４ｆ电子数有关。     

信息管理系统中的工作流技术研究与设计

介绍了工作流的应用背景,分析了某校教务系统中采用的工作流技术的原理和设计思想。提出可编辑、管理和监控的工作流模型,并重点介绍了工作流程运行机制。工作流技术使单位内部业务流程自动化,信息流转逐步实现无纸化。利用其图形化定义流程的功能,在办公流程越来越严谨的前提下,办公效率也大幅提高。某校在教务系统中运用了工作流技术,取得了良好的效果。     

Granular multiple kernel learning for identifying RNA-binding protein residues via integrating sequence and structure information

Neural Computing and Applications - RNA-binding proteins play an important role in the biological process. However, the traditional experiment technology to predict RNA-binding residues is...     

Improved stability conditions for systems with interval time-varying delay

The paper is concerned with the stability of linear systems with interval time-varying delay. Through constructing a new augmented Lyapunov-Krasovskii functional (LKF) which contains some quadruple-integral terms and estimating the time derivative of the LKF less conservatively, new stability criteria are derived without introducing any free matrices. Moreover, by proving the positive definiteness of the LKF with some integral inequalities, the constraints on some functional parameters are relaxed and the conservatism of the obtained results are further reduced. Numerical examples are also given to demonstrate the effectiveness and reduced conservatism of the obtained results.     

Preparation and properties of close-packed composite materials

Monodisperse silica particles of about 0.3m diameter are suspended in methacrylate monomer using a carefully selected dispersant. Many steric dispersants are hydrocarbon chains with a reactive end-group. These are not effective as dispersants for silica in moderately polar solvents, such as esters and the methacrylate monomers. Good dispersion was obtained with a methacrylate polymer terminated by a chlorosilane end group. Settling or centrifugation of these unagglomerated dispersions gives well-packed particle beds. Polymerization of the surrounding monomer produces composite materials with high packing fractions and a high degree of regularity. Moduli and strengths of these composites are reported.     

Adsorption characteristics of hexadecyl ammonium with different numbers of carbon chains in montmorillonite and the structure of the prepared composites

Journal of Porous Materials - The dynamics and thermodynamics of adsorption of hexadecyl ammonium with different numbers of carbon chains in montmorillonite (Mt) with different layer charge density...