Jane Eyre,a Plain but Spectacular semi-autobiographic Portrait of Charlotte Bronte

Maybe life itself is a endured suffering. This is a story about a special and unreserved woman who has been exposed to a hostile environment but continuously and fearlessly struggling for her ideal life. It is interpreted as a symbol of the independent spirit.Through Jane Eyre,Charlotte Bronte realized her own dream and life pursuit.There she was the master of her own fate.     

高阶半线性抛物型方程组的生命跨度

其中m,P,q>1．利用试验函数方法,首先推导一些积分不等式,然后对方程组爆破解的生命跨度 [0,T)给出估计．     

家庭的消费行为规律

家庭是社会消费的基本单位,大多数商品都是直接供家庭购买与消费的。即使是家庭个体成员的消费,也会受到家庭各方面因素的直接或间接的影响。家庭特征与家庭消费行为规律之间存在一定联系,尤其是家庭经济收入、家庭类型、家庭生命周期、家庭消费角色对家庭消费行为有很大的影响作用。探讨家庭的消费行为规律,对工商企业制定合理的营销策略有重要的意义。     

THE NBELC AND NWELC CLASSES OF LIFE DISTRIBUTIONS

ＴＨＥＮＢＥＬＣＡＮＤＮＷＥＬＣＣＬＡＳＳＥＳＯＦＬＩＦＥＤＩＳＴＲＩＢＵＴＩＯＮＳ￥ＣＡＯＪＩＮＨＵＡ；ＷＡＮＧＹＵＥＤＯＮＧ（ＩｎｓｔｉｔｕｔｅｏｆＡｐｐｌｉｅｄＭａｔｈｅｍａｔｉｃｓ，ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉｅｎｃｅ，Ｂｅｉｊｉｎ...     

“Optimization of aircraft maintenance/support infrastructure using genetic algorithms—level of repair analysis”

Level of repair analysis (LORA) is an approach used during the design stage of complex equipment for analysis of the cost effectiveness of competing maintenance strategies. LORA is carried as a part of the life cycle cost and cost of ownership analysis and plays a significant role in minimizing the life cycle cost and cost of ownership of the capital equipment. Since many purchasing decisions of complex equipment are based on cost of ownership, it has become essential to carry out LORA to compete in the market. In this paper, we develop a mathematical model for LORA and propose a solution methodology based on genetic algorithms. The concept is illustrated using a hypothetical aircraft engine.     

Fatigue Loading and Life Prediction in Three Fretting Fatigue Fixtures

Three fixtures for conducting laboratory fretting fatigue tests are described and their respective testing methods and the results of the analysis are compared. Each of these fixtures has been used to investigate the effects of various parameters of interest in fretting fatigue. These fixtures include a unique apparatus in which all load applied to the specimen is transferred to the fretting pads, an apparatus similar to many found in the literature where partial load transfer occurs across the pads, and a simplified dovetail fixture in which the clamping load, P, and the shear load, Q, are varied in phase. Select test conditions from prior experiments performed on identical material and resulting in similar lives ranging from one to ten million cycles from these fixtures are identified. The various testing conditions were used to compute the unique stress field for each case. The resulting contact stresses were used to calculate crack initiation based criteria, and to calculate stress intensity factors. The three fixtures were shown to be able to accommodate a range of loads, fretting pad contours, and specimen geometries that produced a variety of stress fields. A crack-initiation-based criterion was shown to predict the failure lives of thinner specimens accurately. The stress intensity factor calculations showed the possibility of a crack arresting for a stress field that decays rapidly and the possibility of a local minimum for K as a function of depth. The fixtures are shown to be complementary in generating data for development of robust fretting fatigue models that use these criteria.     

开展生命能理论研究，提高人类生存质量

揭示人类生命的奥秘．探求人类生存条件．提高人类生命质量-延长人类寿命是人们共同关注的问题。中日合作、交流．从不同学科领域开拓生命能研究视野．提高研究水平．为人类健康生存做一些有益的探讨。     

道家思想与生命能

在中国传统文化中．对于人的生命．儒家持天命观．佛教持色空观．唯有道教持积极的“我命观”．并且创造积累了一整套延年益寿的养生理论和方术。其中．有些方术所包含的科学性．已被长期的健身实践所证明。用现代生命能的眼光看．道教的静功与动功,都在于既减少体内生命能的损耗,又增强肌体对生命能的输送、吸收和利用．从而获得了健身延年的功效。     

Green chemistry and sustainability metrics in the pharmaceutical manufacturing sector

1. Download : Download high-res image (202KB)
2. Download : Download full-size image

     

大丰国家级自然保护区麋鹿的种群动态

通过编制大丰自然保护区麋鹿种群生命表，绘制其种群增长曲线、死亡率曲线以及存活曲线。得出麋鹿种群的生理期望寿命为6．29岁；种群呈指数增长，其增长模型为Nt=39e^0.184t；种群年龄在1～7a时，种群死亡率较小，存活机率较大，到第8年后，种群死亡率急剧上升，存活机率较小。