山东省高青县田镇街道逢军西瓜种植合作社的西瓜基地种植的西瓜与别人不一样,就连销售西瓜也是妙招百出.合作社的理事长段逢军种植西瓜有20年的时间了,他是远近闻名的"创客",在种植西瓜上总是有不少新想法,使得西瓜的品质提升了,外加销售得法,从而增加了合作社的收入.

读书获积分、剪贴百科书、“明星”开书会……在山东省高青县,农家书屋的管理员们用一个个巧办法将农家书屋办新办活,人们纷纷走进书屋,学文化、寻知识、求技术、攒积分,农家书屋成了人们读书求知的“黄金屋”. 读书巧用积分制 “去年格保明进书屋读书一共获得63个积分,被评为咱村的‘读书之星’.他获得的奖品是美的电饭煲.”近日,格家村举行“我的书屋我的书”读书颁奖仪式.2014年以来,进书屋读书最多的5位村民受到表彰.

<正>山东省高青县是全国第一个低酚棉百公斤皮棉县,是山东省"菜篮子"基地,同时也是农药使用大县。如今当地农民的用药取向发生了哪些变化?他们需要什么样的技术服务?科学施药的难点在哪里?近日,笔者在高青县进行了调查走访。环保高效农药逐步逼退高毒农药在高青县农资配送中心,笔者发现在农资店的货架上,先正达、杜邦等跨国公司的福戈、康宽、拿敌稳等农药、生物农药被摆放在显眼位置,而一些传统型农药则被"逼"到角落里。"这两年老百姓越来越认生物、环保型农药,这类农药也销得最好。高毒农药的销量越来越少,它们被下架只是时间早晚的问题。"农资店经理向秀国说。他从1995年就做农资销售

Through using both Pro/E and ADAMS to build the virtual prototypes with a new kind of multi-link engine and original one,we carry on simulated study and obtain simulated characteristic parameters of mechanism kinematics and dynamics.The result shows that in the simulated study on complicated mechanism,the simulating model can be built conveniently,shortly and accurately to solve the puzzle about mechanism kinematics and dynamics in complicated mechanism,combined 3D body modeling of Pro/E with powerful simulating function of ADAMS.The technology of virtual prototypes based upon both Pro/E and ADAMS will process an important engineering application value in design of ICE and other complicated machines.

In this paper,model of Pro-E and ADAMS of the engine with new multi-link mechanism is set up using dummy prototype technology.Calculations on kinematics and dynamics are conducted using ADAMS emulator.Simulation results show that kinematics characteristics of the new engine processes two properties: unsymmetrical movement and retarded expansion, the former will extend the duration of the intake and combustion and shorten the compression duration.The later is favorable to improvement of engine thermal efficiency.The dynamics calculation also shows that better designing not only means the reduction of piston side-stress during expansion process,but also refers to the avoiding of piston orientation changing at maximum pressure.

提出一种用于内燃机的新型曲柄连杆机构,建立了该机构的运动学数学模型,并编制了计算机程序.根据程序输出结果对新型曲柄连杆机构的活塞运动规律进行了重点分析.结果发现,经过改进的新型曲柄连杆机构具有明显的活塞运动的非对称性,并简析了这种新特性有可能对内燃机工作过程产生的影响.

The TJ-jet combustion system invented by Tianjin University is used to substitute the original one of Cherokee I-4 gasoline engine in view of its detonation, too-high exhaust temperature and other problems occurred under the specific condition of using the fuel with lower octane unmber in our country. With new combustion system the engine performances of the I-4S in power output and fuel consumption is better than that of the I-4 when the same fuel is used. Inaddition, the exhaust temperature is reduced greatly so the engine operation conditions are markedly improved.