面粉机磨辊车削实验研究

本文对车削磨辊的刀具材料，几何参数，切削用量的优选进行了探讨，解决了车削磨辊的问题。     

冷镦工艺的应用

本文根据生产实践阐述了冷镦工艺在机械加工中的先进性和可靠性,认为这一工艺可使产品质量得以提高,使企业获得更大经济效益,具有广阔应用前景,因而很有推广价值.     

Vestimentiferans (Pogonophora) in the Pacific and Indian Oceans: a new genus from Lihir Island (Papua New Guinea) and the Java Trench,with the first report of Arcovestia ivanovi from the North Fiji Basin

Explorations by the German Research Vessel Sonne in the fore-arc and back-arc basins of the western Pacific Ocean have collected vestimentiferan tube worms from both warm vent and cold seep sites. Edison Seamount is a small volcanic cone on the southern flank of Lihir Island, in the Tabar-Feni island chain. Beds of vesicomyid clams on the summit (1450 m depth) are associated with hydrothermal effluent, whereas an uplifted scarp (1600 m depth) nearby is covered by low temperature gas-rich sediments. A methane anomaly has been detected in the water column above the scarp. The benthic fauna includes vestimentiferan tubeworms and bathymodiolid mussels. Bottom photographs show that the vestimentiferans occur singly or in small groups. Four specimens were collected by TV-guided grab. They are described as a new species of a new genus, related to the cold-seep genus Escarpia, of the family Escarpiidae. A single specimen obtained from the landward slope of the Java Trench (1500m) is identified as the same species, extending its area of distribution by some 6000 km westward. Arcovestia ivanovi, already known from hydrothermal vents in the Manus Basin, has now been obtained from a hydrothermal site in the North Fiji Basin.     

Using RBF Neural Network for OptimumControl of a Cold Storage

1. INTRODUCTIONThe predictive optimum control of cold storage temperature has found a wide applicationin agricultural engineering, especially for keeping fruits and vegetables fresh by cold storage.All of the currently-used temperature control units face the problems on how to choose theoptimum temperature as the controlled object, how to predicte the temperature variation ofthe refrigerating storehouse and how to realize the optimum control. A lot of study effortshave been made. The earl…     

植物季节性变化与抗寒性关系的研究概况

综述了植物的保护酶系统、渗透调节物质及光合作用随季节性变化的规律，以及这些生理特性的季节性变化与抗寒性之间的关系，旨在为研究植物生理特性的季节性变化规律与抗寒性之间的关系提供理论参考。     

智能流量冷量积算仪在啤酒企业中的应用

对智能流量积算仪的应用原理和系统设计进行了介绍，该仪表设计初衷就是对啤酒行业中的冷媒水溶液的冷量进行计量，克服了传统的计量方法的缺点，取得了冷媒冷量计量的新途径，并已在某厂得到了成功应用，成本低、计量精确，具有广阔的市场前景。     

煤矸石生产陶粒工艺研究

煤矸石是采煤业选煤的尾矿。煤矸石的积累是煤碳工的重要负担，即不利于环保又占用大量的土地。本文利用黑龙江省七台河煤矸石为原料采用新工艺制备了陶粒，制品完全符合国家标准，部分指标超过国家标准。     

冷战时期美国的拉美政策

拉丁美洲在美国的冷战战略中处于相对次要的位置。冷战初期,美国没有给拉美提供政府援助而是让垄断资本去自由开发;古巴革命的冲击和拉美人民不满情绪的高涨迫使肯尼迪政府推出了“争取进步联盟”,但效果并不理想;之后美国政府对拉美政策再无大的突破,里根政府再一次把意识形态因素提上了议事日程;冷战的结束更使得拉美在美国外交中的地位大大下降。意识形态、冷战进程、历史积淀和控制手法是冷战时期美国对拉美政策中的重要影响因素。     

冷战后东南亚"逆裁军"问题初探

1991年冷战的结束,为全球或地区性的军控与裁军创造了良好的环境,但在东南亚却出现了扩充军务的"逆裁军".究其原因,固然是由于东南亚自身的经济增长和南中国海的分歧与争端,但也与"中国威胁论"、地区安全机制及冷战后军控与裁军的现状与理论缺失等有关.就其影响而言,"逆裁军"不仅占用了大量的经济资源,而且破坏了地区稳定,也对中国的安全环境造成了消极的影响.     

冷挤压过程的刚塑性有限元分析

本文采用刚塑性有限元法分析冷挤压过程,建立了材料屈服强度的新模型及相应的有限元计算方程,完成了对汽车轮胎螺母冷挤压过程的刚塑性有限元分析。从而为工艺和模具设计提供了理论依据。