优化园林绿化工程验收研究

就目前情况来看,建筑项目有很多种,其中园林绿化工程是最特殊的一个。针对这项工程,可以根据其独有的特点将整个过程按照相应的施工顺序分为不同的类别,特别要注意的是,每个类别要体现出自身的属性和意义。而对于施工和验收,《园林绿化工程施工及验收规范》给出了相关的具体要求和规定,而本文则有效结合了实际遇到的问题和特点对园林绿化工程验收的优化进行了详细的探究。

NOx Absorption in Full Scale Plant Columns with Structured Packings

A mathematical model of nitrogen oxide （NOx） absorption is adopted and solved for adiabatic operation of a column with structured packings on the basis of the film theory. Removal rate, outlet concentration, oxidation degree of NOx and outlet acid concentration, liquid acid temperature are simulated and tested. The gas phase reactions and equilibria, gas phase mass transfer, interracial equilibria, and liquid phase reactions are considered in the model. Absorption of nitrogen oxides is studied in packed with Mellapak 250Y columns in series in an industrial process of 20000 t oxalic acid per year. Favorable agreement is shown between the model predictions and the on-site observations.

Simulation for Synthesis of TAME with Catalytic Distillation Process

The triangular matrixing modified relaxation model equation was established for the syn-thesis of TAME with catalytic distillation process, and a new accelerated convergence technique was adopted. The simulation on the synthesis of TAME showed that the calculated data agreed well with the experimental results.

《民船标准体系研究》课题验收会在京召开

由国防科工委民品发展组织召开的《民船标准体系研究》课题验收会，于2004年7月27日在北京召开。来自上级主管部门及有关厂、所的各级领导和专家20余人参加了会议。

抗青枯病桑树新组合—桑抗一号性状简介

本品种是农业部“七·五”重点科研项目研究成果,经组织专家验收;参加广东省抗青枯病桑树一代杂交组合品比试验,于1994年3月17日通过广东省桑、蚕品种审定小组审定,认定桑抗一号在参审组合中抗青枯病力最强,叶质较好,但产桑量稍低,建议可在青枯病区推广。