This study focused to determine the bacteriological quality of different commonly used water sources, including boreholes, hand pumps, surface water, household
近年来,铃木王GS125、豪爵EN125以其经济的油耗和卓越越的驾驶性能以及流畅的外形倍受广大消费者的青睐,电启动更是给人们带来了极大的方便,人们在追求启动方便的前提下,更要
A zirconium modified MCM-48 mesoporous material was synthesized by surfactant-templated method. Surface grafting Zr-MCM-48 with tungstophosphoric acid led to a
外观评价：我买的嘉陵独狼是红色的,给人感觉很好,当时一眼看到这款车,我就相中它了。它的外观给人一种很安静的感觉。新款的灯罩很好看，装在车上，很有整体的流线感。
Carbon nanoparticles were synthesized using lignin as a renewable feedstock by employing a freeze-drying process followed by thermal carbonization. The effect o
节假日里,小S骑着才买的新摩托车,带着恋人,和朋友去郊外旅游。骑着摩托车从拥堵的城市驶上了开阔的郊外车道,小S心旷神怡。公路尽管宽阔但车来车往,不时有一辆辆汽车呼啸着
There is demonstrated how it is possible to refine graphitic nanotubes’ chiral indices based on the appropriate geometrical model for their structure.
In this study we analyzed the generation and the potential of the electricity capacity of energy mix in East Africa from 2020 to 2040 including CO2 emission. Th
This study briefly reviews the application of Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) in geotechnical engineering since GA and PSO are wide
<正> 一实践活动是主体与客体能动地相互作用的现实过程,这一过程的结束必产生实践结果。所谓实践结果就是实践活动所引起的客观对象和主体自身的实际变化。它作为实践活动的直接产物,熔铸着加入活动的物质的和精神的、客观的和主观的、理性和非理性的各种因素;作为具体实践过程的“终结”,它经历了由实践目的、手段到结果的一系列转变,凝聚着实践过程的全部成果;作为认识的对象化,它使精神力量变成了物质力量,给予认识活动和实践活动以重大的作用和影响。人类活动所追求的就是符合主体需要和目的的实践结果,为了得到这一结