比照国际水平 开发系列产品

比照国际水平开发系列产品程哲生，陈乐怡（一）石油化工的产品系列化，是指要大力发展石油和化工原材料、合成材料的深度加工；生产有竞争力的技术先进、品种新颖、附加值高、适应市场需求的高质量升级换代产品；不断开发包括石油产品、塑料、合成纤维、合成橡胶、精细化...

日本东京农业大学国际农业开发系

日本东京农业大学国际农业开发系日本东京农业大学是一所很有名的私立大学，成立于１８９１年。该校设有研究所。大学部、短期大学部、附属农校（高中部）及成人学校。大学部学生目下有７０００余人，其中的国际农业开发系（科）有学生７１５人，女生约占２０％。这个系的...

离线双银Low-E镀膜玻璃膜系开发浅谈

阐述了采用真空磁控溅射原理生产双银Low-E镀膜玻璃膜系的一种新的开发思路,通过对双银Low-E膜系的实际开发过程分析,提出了双银Low-E镀膜玻璃膜系的开发过程中应注意的问题,并对实际生产提供了指导性建议。

延边国有林区林地(沟系)开发承包经营的研究

通过对延边国有林区林地(沟系)开发承包经营现状的分析,查找存在的问题,提出强化林地(沟系)开发承包经营的对策和重点工作,推动林地(沟系)开发承包经营步入规范化、规模化、效益化发展轨道。

阳逻电厂计算机数据采集系统

文章介绍武汉阳逻电厂计算机过程监视、数据采集系统ＨＳ－ＤＡＳ－３０００的硬件配置、软件结构以及系统功能。

开发菜田机械前景广阔

据有关专家预测,到本世纪末或下世纪初,全国城市蔬菜生产的机械化作业比例将达到80％以上。开发系列菜田机械,必将受到菜农的欢迎。 目前,

Rocky Desertification Dynamic Analysis and the Development of Management Information System

With the background of severe rocky desertification in the west of China and the ohjective of ecological environment construction and poverty elimination, the management information system of rocky desertification was designed according to the natural and humane characteristics in Nanchuan of Sichuan Province. The system was composed of data management module, information query module for rocky desertification, spatial analysis module and dynamic monitoring module.

Experimental Study of Diesel-NG Dual Fuel Electronic System for F6L912Q Engine

In order to improve the diesel engine emission performance and convert the diesel engine to dual fuel engine, a dual fuel (diesel and compressed natural gas (CNG)) electronic system was developed, in which electromagnetic valves were used to control multi point natural gas injection. The system was designed for type F6L912Q diesel engine and the function of the system was testified on test cell. The test results showed that the system had great advantages in power ability and emission performance. The average CNG substitution at rated load was over 80%. The dual fuel system was practical. To adopt dual fuel system was a good way to improve the engine's emission performance.

Characteristics and Measurements of Ecological Compensation in Ecosystem

This research was to introduce the characteristics of and countermeasures for ecological compensation. From the analysis of the current situation of ecological compensation, a series of characteristics of ecological compensation in resource exploitation and economic development were elaborated. The principles and practical issues are complex in ecological compensation, and the corresponding object, entity, financial system of ecological compensation are the keys to set up compensation mechanism, and studying of ecosystem service function and ecological footprint calculation are important ways to quantitatively assess ecological compensation, and are also important foundations for establishing calculation system of green GDP. Advocating the benefit compensation mechanism of ecological economy and enclosing ecological compensation principle are important ways for establishing the new environmental management pattern and manifesting social justice and the ecological civilization ideas. This research proposed some views of and approaches to ecological compensation mechanism for constructing natural resource development and utilization.The establishment of ecological compensation is an important approach to prevent the imbalance of resource allocation, the system guarantee for sustainable development, and the important basis of saving resources.

Forestland prediction of China based on forest ecosystem services for the first half of 21st century

A new model was developed to predict forestland demand of China during the years of 2010-2050 in terms of the concept of forest ecosystem services. On the basis of the relationship between forest ecosystem services and classified forest management, we hypothesized that the ecological-forest provides ecological services, whereas commercial-forest supplies wood and timber production, and the influences of the growth of population, social-economic development target, forest management methods and the technology changes on forest resources were also taken into account. The prediction reveals that the demand of total forestland of China will be 244.8, 261.2 and 362.2 million ha by the year 2010, 2020 and 2050, respectively. The results demonstrated that China will be confronted with a shortage of forest resources, especially with lack of ecological-oriented forests, in the future. It is suggested that sustainable management of forest resources must be reinforced and more attention should be drown no enhancing the service function of forest ecosystem.

抓住机遇 发挥优势——建设充满活力的县级财源

镇平县位于河南省西南部,是全省18个改革开放特别试点县之一。在实行财政包干初期,由于工农业生产水平较低,财政连年赤字。进入“七五”以来,特别是开展“两扭两创”活动以来,我县抓住改革开放机遇,立足传统手工业和轻纺工业发达、群众商品意识浓厚的优势,加快财源建设步伐,高起点、大跨度地推进经济建设。

湖南林业高等专科学校首届优秀教学与科技成果评比活动揭晓

湖南林业高等专科学校首届优秀教学与科技成果评比活动历时四个月,由各部门初步筛选共推荐稿件31篇,经过学校科学技术委员会广泛评议并以无计名投票、打分方式确定,最后经学校党委批准,一等奖2项、二等奖5项、三等奖8项、优胜奖16项。一等奖获得者是林业工程系的曾意纯以及资源开发系的张锡良两位同志。

Development of component geographic information systems applying in forest resources management

The history, current situation, and development trend of GIS (Geographic Information System) applied in the forest resources management were discussed in this paper. On the basis of geographic spatial characteristics of forest resources data, a component geographic information system (ComGIS) was developed for forest resources management. The system embeds a GIS ActiveX control MapObjects (Inc. ESRI) on Visual C++ platform. System design, data organization and achieving way were studied and expatiated by taking Xigangzi Forestry Centre as study object. The system has many useful functions,, such as adding and display of various map layers, zoom of map by wheeling mouse, attribute and spatial data querying, map auto roaming, features rendering based on the spatial trait of data, label controlling through attribute data band with vector graph, as well as output of 'Column chart' for showing the result of statistics. At the same time, parts of source codes are attached.

Splicing System Based Genetic Algorithms for Developing RBF Net-works Models

A splicing system based genetic algorithm is proposed to optimize dynamical radial basis function(RBF)neural network,which is used to extract valuable process information from input output data.The novel RBF net-work training technique includes the network structure into the set of function centers by compromising between the conflicting requirements of reducing prediction error and simultaneously decreasing model complexity.The ef-fectiveness of the proposed method is illustrated through the development of dynamic models as a benchmark discrete example and a continuous stirred tank reactor by comparing with several different RBF network training methods.

Development of a CH4 dehydroaromatization–catalyst regeneration fluidized bed system

A pilot-scale methane dehydroaromatization–H_2regeneration fluidized bed system(MDARS)was developed.In the MDARS,the catalyst circulation between a fluidized bed reactor and a fluidized bed regenerator with the help of a catalyst feeder allowed methane dehydroaromatization(MDA)and H_2regeneration to be carried out simultaneously,which is good for maintaining a stable MDA catalytic activity.A fixed bed reactor(FB)and a single fluidized bed reactor(SFB)were also used for a comparative study.The experimental results showed that the catalytic activity in the MDARS was more stable than that in the FB and SFB reactors.The effects of some parameters of MDARS on the CH_4conversion and product selectivity were investigated.To verify the feasibility and reliability of the MDARS,an eight-hour long-term test was carried out,which demonstrated that the operation of the MDARS was stable and that the catalytic activity remained stable throughout the entire experimental period.

Research on Mechanical Product Development based on CAD Software

This paper introduces analysis the development process of CAD technology, application of the AutoCAD software in engineering field and teaching as well as the significance of the development of two times the. This paper analyzes in detail the development of common language, and the use of Visual BASIC development and application of software based on AutoCAD. The author elaborates the software interlace design and method calls AutoCAD in VB. Finally, the design and implementation of a programming language re-development system based on AutoCAD is concerned. The test results show that the developed AutoCAD two development system has good practical value.

Symbiotic State of Chinese Land-Marine Economy

The simultaneous development of both the land and marine-based economy is required to achieve the economic development of coastal regions in China. Based on symbiosis theory, this study discusses land and marine-based economic symbiosis mechanisms and uses a logistic symbiotic function to construct a symbiotic evolution model of the land-marine economy. We conduct a division and feature analysis of the interactive model between the land and marine-based economies of ll provinces （or cities） along the coast of China between 1996 and 2013, and discuss their economic development. The results show that, during the study period, the coordinated development model of the national land-marine economy is a parabiosis model. Fujian Province exhibits mutualism, Jiangsu, Hebei, Shandong, and Guangdong show commensalism, while Tianjin, Zhejiang, and Shanghai display parasitism, Guangxi and Hainan exhibit an antibiosis model, while Liaoning displays a parabiosis model. The land economic development model of Jiangsu and Fujian and the marine economic development model of Guangdong are improving the quality and efficiency of the factors of production. All other provinces＇ development models improve the productivity of the production factors to expand the scale of production.