以凹凸棒土为原料,采用原位晶化法制备了Al-MCM-41有序介孔分子筛,再采用超声辅助浸渍法将Mn或Co负载于分子筛表面及孔道中,制备出一系列M/Al-MCM-41催化剂(M=Mn,Co).采用XRD、N2吸附-脱附、SEM、TEM、H2-TPR等技术对催化剂进行了表征,并考察了其对甲苯、乙酸甲酯、乙醇等VOCs的催化氧化性能.当Mn或Co的负载量(w)为6％时,催化剂的催化氧化性能最佳.在甲苯、乙酸甲酯、乙醇质量浓度分别为2000,10000,6000 mg/m3,气时空速为60000 mL/(g·h)的条件下,负载量为6％的Mn/Al-MCM-41和Co/Al-MCM-41催化剂能够分别将甲苯的T90降至281℃和306℃,将乙酸甲酯的T90降至295℃和324℃,将乙醇的T90降至247℃和238℃.

实际运行中日内负荷波动、风电波动、发输变电设备异常等原因将造成机组日内调度出力极大偏差日前发电计划.进而增加了“三公”调度模式下电量进度均衡控制的难度.为此,提出了考虑机组合同电量完成动态均衡的日内安全经济调度的模式、模型和方法.该方法基于经济调度优化内核,通过机组合同电量非线性均衡控制方式.实现对机组日内电力、电量的协调优化和合同电量完成进度的日内精确控制;日内机组合同电量完成进度的实时跟踪及滚动建模机制能够实时跟踪电网及机组运行条件的变化,及时调整各台机组的出力.实现电量分配在时间维度和空间维度的最佳协调,从而极大提高电量控制对电网运行环境变化的适应性.所提方法将为实际调度计划及运行业务的效率提升提供理论支撑.

发电计划编制是电力调度工作的主要内容之一,对电网安全经济运行具有重要意义。风力发电受自然因素影响具有随机波动特性,大规模风电接入显著增加了电网制定发电计划的难度。针对大规模风电接入对传统发电计划方法的挑战,基于风电功率的描述方式,分析并评述了增加额外旋转备用、基于场景的随机规划、鲁棒优化3种主要方法的特点及其优缺点,提出开展研究急待解决的问题,以期为适应大规模风电接入的发电计划不确定性研究提供参考。

In order to accurately calculate the generating cost of the combined cycle gas turbine (CCGT),this paper introduces the maintenance cost model of CCGT based on the traditional model. The difficulty of this model is that the start-up and operation maintenance cost does not coexist in the same calculation period. For this purpose,first we can computer the start-up maintenance cost by superposing it to the mode transition cost,and then by analyzing whether the gas turbine of CCGT starts up in the calculation period we can determine whether to add operation maintenance cost to the target cost. Meanwhile,we can transfer the non-linear expression to the linear expression by linearization techniques and establish the mixed integer linear program. This paper uses the actual data of Macau for testing. The testing shows that the model can effec-tively solve the maintenance cost of CCGT with more reasonable results.

<正>健身气功八段锦是国家体育总局向全国乃至世界推广的身体锻炼方法,是中医养生与治疗学的一部分〔1〕。八段锦是一套由八节动作编成的功法,以人自身形体活动、呼吸吐纳、心理调节相结合为要素的民族传统运动方法。作为以肢体运动为主的导引术,其运动强度和动作的编排次序符合运动学和生理学规律,是适合中老年人练习的中小强度有氧运动。本实验从八段锦对肺活量的调节作用入手,研究练习八段锦对不同血脂水平中老年人肺活量的调节作用。

Contingency is inevitable in a power system.Nevertheless,it means a great deal to operators to analyze the causes,the distribution of contingencies and characteristics of serious failures when studying the mechanism of contingency occurrence,finding out the influence of contingencies and then improving the pre-control capability of operation risk.The statistics and distribution characteristics of contingencies of 500kV transmission lines in North China power grid are analyzed from several perspectives,as is the correlation between different kinds of contingencies and all kinds of factors.The characteristics of four serious failures during 2012 are analyzed at length,and the inspiration of these serious failures is well concluded.In the end,the risk prevention and control method is proposed from the perspective of power system operation.The corresponding key technologies are discussed,and suggestions for actual operation are made.

芥川龙之介在其短暂的创作生涯中留下了大量优秀作品,缜密的心理描写、纯熟的创作技巧,这些均是芥川文学的魅力所在。本文以《桔子》为蓝本,从词语的分析着手,探究作者如何将一瞬间的情景以及所感受到的情绪表现出来,以及与作者的实际生活有何种关联。

随着市场经济的发展,我国中小企业在数量和地位上都发挥着至关重要的作用,然而中小企业承担社会责任十分有限,甚至会出现违反法律、缺失道德的行为。本文从规制中小企业社会责任的必要性出发,提出对中小企业社会责任进行法律规制的几点思考建议,以期我国中小企业能长久健康发展。

The effects of HNO_3,H_2O_2,HCl,NH_3·H_2O and NaOH on properties of activated carbons (ACl) and catalysts were investigated by means of low-temperature nitrogen adsorption-desorption technique (BET),X-ray diffraction (XRD) and scanning electron microscopy (SEM).The results showed that the surface of ACl inducted lots of acid oxygenic groups modified by HNO_3. Total acid density (DTO) and Pd particle distribution was improved.The conversion of 4-CBA reached 97.85% under the conditions of H_2 pressure 0.2 MPa and temperature 280 ℃.

Case recruitment of large-scale clinical trials should be strictly checked in quality and quantity for it is the key to clinical trial.This study discusses the main difficulties and countermeasures in the case recruitment of large sample,multi-center clinical trials according to the national research project Myocardial Infarction Secondary Prevention Study in Traditional Chinese Medicine.

Objective:To explore the neuroprotective effects of salvianolic acid A on focal cerebral ischemia in rats.Methods:Focal cerebral ischemia was induced by permanent occlusion of the proximal portion of left middle cerebral artery occlusion(MCAO).A neurological examination was performed on each rat come round,24 hours after ischemia by the method of Berderson and Zhang.The infracted size was measured by 2,3,5-triphenrytetrazolium chloride(TTC) staining technique at 24 hours post-ischemia.Effect of salvianolic acid A on the histological neuronal changes were observed by means of HE staining.Results:Salvianolic acid A significantly reduced infracted size,cerebral index,water content and score of neurological deficits.Protective effects of SalA on cerebral lesion were better than ones of Sal B.Conclusion:Salvianolic acid A was a good neuroprotective agent,but its dose-effect relationship was not evident.

because the open-air gold mine of the Hexi near the village,road,and high wire,so we take the trial in it,by trying,we draw the responsible conclusion to parameter o explosion,and draw the responsible conclusion to how.Thereby,we low the shock of explosion,and low the cost of the explosion,the meleage is very obvious in economy and social.

为了使丰富的馆藏利用更大化,使中药标本馆跟上时代的发展,提出了“建设与时俱进的中药标本馆”的议题。其阐述的具体方法是,首先,构建中药标本馆多元化功能体系,走专业性与科普性兼容的发展之路。另外,通过对中药标本馆现状及局限性进行分析,选择利用数字化、网络手段建立数字标本馆,达到低投入高品质,广传播善管理,精神与经济双收的效果。提高中药标本馆工作水平与时代合拍,与时代并进。

Objective The aim of his subject is to research the data distribution of the demography and its appearance characteristic in the persons with a subhealth state.Methods Using the knowledge of the clinical epidemiology and the quantitative score technique the data distribution of demography and its appearance characteristic were explored.Result This investigation was characterized as follows:the number of the researched female was much more than the male one,the middle aged was more than others,the researched was mainly married and was Han nationality,most of them had middle record of formal schooling and were works in their occupation.Conclusion The incidence of subhealth state is being increased gradually.It has already been paid a close attention by the medical workers and the social persons.

The cold model experiment setting is set up to study the flow status for the reactor TA hydropurificafion. The construction parameters are similar with the industrial reactor, and the height of the reactor is 1000 mm and the diameter is 250 mm. The average residual time distribution(RTD)of the cold model reactor are determined by pulse method. The flow pattern relate with flow feeding, and it approaching piston flow with more flow feeding. It is considered that the flow pattern of the industrial reactor is piston flow from the RTD. The relevant formula of f_m and Re_m is obtained from the experiment of pressure drop. And the pressure drop of industrial reactor is 18.51 kPa, which is calculated from the formula.

丹参(Salvia miltiorrhiza)为齿形科植物的干燥根及根茎,首载于<神农本草经>,历代本草均有记载.其味苦,性微寒,归心、肝二经;具有祛瘀止痛、活血通经、清心除烦功效,且祛瘀生新,有"一味丹参,功同四物"之美誉.由于疗效确切,被广泛应用于临床各科,成为药理研究深入、应用范围宽广的中草药之一.丹参化学成分分为水溶性和脂溶性两大类.20世纪早期的研究主要集中在以丹参酮为代表的脂溶性成分方面,近20年来,对其水溶性成分的研究成为丹参研究的主流.

《伤寒论》第319条：“少阴病，下利六七日，咳而呕、渴，心烦不得眠者，猪苓汤主之。”对于本条的诠释，虽不乏历代名家阐述，然颇感未尽其义。至于今人普遍将本条的“下利六七日”判定为阴虚液泄之证，更令人费解，既然阴虚，缘何“下利六七日” ?还是由于“下利六七日”而导致阴虚呢?笔者细细推敲，觉得若从“下利六七日”入手加以剖析，似为理解本条原文旨义的关键。兹仅略述如下，敬祈明达斧正。 1 关于诸家注解本条的质疑 金代成无己认为：“此下利呕渴，知非里寒；心烦不得眠，知协热也。与猪苓汤渗泄小便，分别水谷。……”成氏之说回避了“下利六七日”的问题，也未能阐明病机，仅以“知非里寒”、“知协热也”解释病机，恐难自圆。更以“当利其小便”释猪苓汤之用，也恐失仲景本意。 清代柯琴认为：“……二三日心烦是实热，六七日心烦是虚烦矣，且下利而热渴，是下焦虚不能制水之故，非芩连芍药所宜。……故用猪苓汤主之。以滋阴利水而升津液。”何氏之论虽能探究病机，但对于“下利六七日”这个关键问题也未能正面做答，而且，对证候的病机解释，似有偏颇之嫌。