A PREDICTION OF THE DEVELOPMENT OF COMMODITY ECONOMY BY MEANS OF MARKOVIAN DECISION PROGRAMMING

This paper studies the transition prdbability, transfer matrix,distribution of owning the marketplace, and the transition probapility of theflow of customers by means of the theory of Markovian Decision Programming.It gives the theory and method for scientific predietion of the main probabilityof owning the marketplace and expected revenue in commodity economy.     

THE OPTIMAL DESIGN AND ENGINEERING APPLICATION OF DISTRIBUTION

This paper introduces the metod of optimal design of municipal water distribution,The main points are the theory,mathematical model,program frame figure and example in practice of the optimal method of hydraulics.The program is applicable to the design and calculation of the pipe network in a city. It gives a simple and convenient calculation method for multiple-scheme design and scheme cmparison of water supply system.     

OPTIMAL SELECTION ON THE INTERVALS FOR HANDLIND THE RHYSICAL EXPERIMENT DATA BY THE METHOD OF DIFFERENCE WITH DATUM BY DATUM

This paper discusses the mechanism and reason for decreasing the handling polynomial function data on difference with durum by datum.From the error theory,some exemples are analysed and the equivalent principle for the intervals on datum by datum is presented.The optimal number for intervals is analysed in detail and shown by some examples for the correct result.At last,by making comparison between some methods for handling the physical experimental data to show the advantages of them,the proper condition and range in use for every method is also presented.     

THE APPLICATION OF NETWORK PROGRAMMING METHOD ON THE SHORT TERM OPTIMAL SCHEDULING FOR CASCADED HYDROPOWER STATIONS

The problem of the short term economic scheduling for cascaded hydropower stations is discussed with the network programming method. A new network model is built to dispatch the load to each unit when the unit commitment is determined. An algorithm of the minimal cost maximal flow is also discussed using the model and the algorithm to the Longxi River Cascaded Hydropower Stations, the computational result on the microcomputer VAX II shows that the model and the algorithm are correct and applicable.     

粮仓机械未来发展方向的思考

目前,我国粮仓机械行业快速发展,装备总量快速增加,粮食进出仓效率有一定提高,但是装备整体制造水平参差不齐,自动化、智能化水平仍然较低.未来的发展方向中,在自动化、智能化作业的需求契机下,为实现粮仓机械领域"信息感知、定量决策、智能控制"的目标,将重点开展基于先进制造、人工智能、工业互联网等技术的高效进出仓作业等突出任务...     

小麦温光发育模型的研究

1981～1984年,选用代表不同生态类型的25个小麦品种,在大田进行分期播种.通过分析温光等主要生态因子与小麦生长发育的关系,建立了各品种主要发育阶段的温光模型:播种至出苗为G=104.4751/(T-1.1032),出苗至二棱、出苗至拔节为V=a+bG+cP_(t1),二棱至抽穗、拔节至抽穗为V=a+bT+cL.文中认为,播种至出苗的日数(G)既能反映当时的温度条件,又可表示萌发时的“田间春化效应”;温光积(Ptl)则给“温度与光照之间存在明显的互补作用”找到了量的表达基础;因此,建模时采用这两个变量,是很有意义的.     

不同熟性棉花品种的器官发育规律研究

对中熟品种中棉12,中早熟品种中棉17、早熟品种中棉16分别在露地上进行春播、晚春播、夏播试验,研究其生长发育规律。结果表明,与中熟品种相比,早熟品种的株高生长、主茎叶节发生、果枝伸展、蕾铃发育的相对速率都较快,因而按播种后相同热量单位比较,叶片所占的比例较小,蕾铃所占比例较大,相同单株干重下亦都有类似趋势。但早熟品种的单株生物量和经济产量均相对较小。结果还表明,早熟品种的生长发育速率较高,如适当增加其播种密度,可一定程度上弥补因生长季热量限制与植株小之不足所造成的损失,从而仍获得较高的皮棉产量和霜前花率。文中还建立了一些关系方程,对不同熟性品种生育习性进行了数量分析。     

几种表面诱捕器在仓储稻谷害虫发生初期的检测效果比较

分别采用信息素诱捕器、波纹板诱捕器、探管诱捕器和人工取样过筛方法,在夏季害虫发生初期跟踪监测了高大平房仓散存稻谷粮堆表面的害虫发生情况。结果表明:诱捕器检测可以比人工取样过筛检查早1个月以上发现害虫,插入粮堆表面下的探管诱捕器只可以诱捕到麦蛾成虫,波纹板诱捕器可以诱捕到麦蛾、玉米象和锈赤扁谷盗,信息素诱捕器可以诱捕到麦蛾和锈赤扁谷盗(但未包括玉米象)。在麦蛾、玉米象等都有发生的情况下,人工取样检查要晚1月后才发现少量书虱和锈赤扁谷盗。诱捕器监测粮堆表面害虫表现出了发现害虫早、数量多、种类多的优势。     

AN ANALYSIS ON ELIMINATING NOISE OF AE TEST BY SIMULATOR AND THE KAISER EFFECT

In the utilization of the Kaiser Effect of AE as a method of estimating the gecstress in rock, it is very important to eliminate the noise induced at the ends cf a specimen, so sponge pads are put between the upper and lower end surfaces of specimens and bearing plates. In this paper, the attenuation behavior of sounds emitted by AE simulator and propagating in sponges are quantitatively measured. The eliminaion of noise by sponge effect is confirmed by the Kaiser Effect.     

仓外与粮面联合施药磷化氢环流熏蒸试验

利用高大平房仓环流熏蒸设备，进行仓外磷化氢发生器施药并结合粮面投药的环流熏蒸试验。结果表明仓外投药与粮面投药相结合的环流熏蒸能使磷化氢气体迅速达到有效浓度，而且达到浓度最高值的时间长，能保持较长的熏蒸时间，对粮堆内的害虫和试虫笼内的害虫均有良好的防治效果。