Modular Design Base on Variety Theory

Variety Design not only support to short down development time, and cut down development cost, but also support to response marketing rapid, is a kind of modern design theory which apply on Mass Customization. In some way, Variety Design is a kind of design that integrates standard design and modular design, and Variety Design object is high cost and universal parts that among platform. The authors discuss the modular design role and the different between integral design, promote the method and the step of modular design, so change the low cost parts design, and give an new product based on the platform. Based on this model, they not only save the cost of develop new product, but also save time, achieve advantage which Mass produce process.     

Innovation of Construction Projects Management Based on the Five-dimension Modeling

Nowadays,the computer technology is applied more and more widely in the architecture,engineering and construction industries(AEC).This paper introduces a methodology of construction project management based on the five-dimension modeling which integrates three-dimension building models,resources and schedules by the development of virtual construction technology.The application of this method also influences several aspects of project management such as range,time,cost,resource,communication and information management.Finally,the process of 5D modeling and the management practice are presented through a real life case in Beijing which proves to be a more efficient,productive and economy project.     

1-MCP处理对桃冷藏期间品质和生理特性的影响

秦王”桃采收后分别用不同浓度1-MCP处理,然后置于(0±1)℃冷库中贮藏。结果表明:1-MCP处理对贮藏期果实的硬度、可溶性固形物含量无显著影响。经处理的果实在贮后20天果皮细胞膜透性开始异常增加。10nL/L和30nL/L1-MCP处理的果实比对照提前5天出现了呼吸高峰和乙烯释放高峰;500nL/L的处理抑制了果实的呼吸作用,与对照相比大幅度降低了乙烯峰值,在相同贮藏时间多酚氧化酶(PPO)和过氧化物酶(POD)活性也显著降低(p<0.05),表明500nL/L的1-MCP处理能有效地抑制果肉褐变,延长果实贮藏时间。     

1-MCP对果实的影响

1-MCP是一种乙烯受体抑制剂,对果实成熟起着明显的抑制作用。在阐述影响1-MCP效应的因素和1-MCP对香蕉、梨和苹果影响的同时进一步调查了1-MCP在果实贮藏中起的作用。     

3种白三叶品种萌发期对干旱胁迫的响应及抗旱性评价

用不同浓度(0、5％、10％、15％、20％、25％)的聚乙二醇6000(PEG-6000)溶液模拟干旱胁迫条件,对3种白三叶萌发期的相对发芽率、相对发芽指数、相对活力指数、抗旱指数、相对根长、相对芽长共6项指标进行研究.结果表明:1)随着干旱胁迫程度的加剧,3种白三叶种子相对发芽率、相对发芽指数、相对活力指数、抗旱指数、相对根长、相对芽长总体均呈下降趋势,且瑞文德下降幅度最大;2)5％ PEG浓度能促进vns和荷兰白种子萌发和幼苗的生长;3)采用隶属函数法对3种白三叶萌发期的抗旱性进行了综合评价,抗旱性强弱顺序为:vns＞瑞文德＞荷兰白.     

A Study on Urban Land Structure Optimization Model

As far as the urban land structure is mentioned, it means the distribution of urban land among the different industries of the city. The problem of urban land structure is referred as unreasonable allocation of urban land caused by several factors, including the decision making mechanism of old economy and urban development policies. Different from using Fractal theory, Entropy theory and Functional theory, in this paper, with reference to Dissipative Structure Theory, one dynamic, systematic and historical optimization model of Max f(J_i, X_i) with two parameters of J_i and X_i will mainly be set up. This model can be used for analyzing the key factors determining the optimization of urban land structure.     

Researching and Developing a Hybrid Electrical Vehicle

There are more than two power source in Hybrid Electrical Vehicle(HEV). By using of assist accelerating, power regeneration, Idle stop and power management, HEV gains more acceleration performance and more fuel economy and better gas emission than Conventional Vehicle(CV). With Integrated Starter and Generator(ISG) as a auxiliary power source, batteries and battery control module and power manage module as a Load leveling Device (LLD), two prototype HEV separately equipped Manual Transmission (MT) and Continuously Variable Transmission (CVT) was successfully developed.     

Real-time Monitoring System of the Pump Station for High Press Water

With the development of industrial automation technology, the monitoring system becomes more and more important in the control system. The paper discusses the monitoring system design based on the pump station for high press water. At first, the paper introduced the base process and the control system of the pump station for high press water. The control system includes two parts: upper part and lower part. The control network consisted of some PLC controls the device in the system. Then the method of the OOP technology application to the monitoring system design are emphatically introduced and discussed. Finally, the paper briefly introduced the main function models and the key technologies.     

四川不同生态区高产栽培条件下的杂交籼稻的稻米品质

郫县、汉源、射洪、邻水是四川具代表性的4个生态区,郫县位于成都平原区,土壤肥沃但受弱光限制;汉源位于攀西高海拔地区,温光充足;射洪位于川中丘陵区,受地形制约而气温日差较小;邻水则位于川东丘陵区,水资源缺乏且受干旱等灾害制约。本文以位于这4个典型生态区实施的水稻高产示范片为研究对象,分别对4个生态区及各生态区不同栽培方式、不同高产水平的杂交籼稻稻米碾米品质、外观品质、蛋白质含量、直链淀粉含量及淀粉RVA谱特征值进行比较研究。结果表明:(1)生态条件与稻米品质有密切关系,受气温和土壤肥力影响较大,郫县的稻米品质最优,邻水相对较劣;齐穗前后气温略高及较高的土壤全氮、全钾、速效磷含量有利于高碾米品质的形成;土壤全磷含量的降低可显著增加米粒长宽比;灌浆成熟期的高温会增加稻米的垩白粒率和垩白度,而土壤速效磷含量高则有利于降低垩白粒率和垩白度;灌浆结实期的高温也会降低稻米蛋白质含量;直链淀粉含量随土壤有机质含量的升高而升高;峰值黏度与土壤全钾含量显著负相关,崩解值与土壤全钾、速效磷显著负相关,还与齐穗前8~21 d的日最高气温显著正相关,回复值、峰值时间与齐穗前14~21 d日最高气温、抽穗至成熟期日最高气温呈显著或极显著负相关,与土壤碱解氮呈显著正相关。(2)各栽培方式间,机直播的碾米品质较优,优化定抛的直链淀粉含量较高,而机插的峰值黏度、崩解值较高,消减值较低,蒸煮食味品质较好。(3)高产及超高产田块的碾米品质整体较优,而外观品质和蒸煮食味品质相对较差。本研究可为四川杂交中籼稻高产优质栽培技术提供理论参考。     

Construction and Realization Method for 3 -D Digital City

This paper studies the key technology in the 3 - D digital city construction, and puts forward a new method to construct and realize the 3 - D digital city. The authors discuss the dates gathering and disposal from the collection of 3 - D topograph dates, the construction and ingress of 3 - D model, the gathering and disposal of texture dates. Subsequently, to solve the problem of that the 3 - D topograph dates are greater than the 2 - D topograph, the bulk-dates optimization of 3 - D digital city is realized through the choose of appropriate DEM of linenumbers and column numbers, the 3 - D model modeling specification, the using of nodes replace, the optimization of LOD modeling. The successful operation result of Chongqing Hi-tech Development Zone 3 - D digital city project illustrates that, this system can realistic mimic status in quo of the Chongqing Hi-tech Development Zone, the system operates smoothly, and its effect is also well.