As we all know, Immanuel Kant holds the view that human beings are quintessentially rational creatures; hence, the emotions are not much more than a form of excessive psychological baggage that human beings could do w...As we all know, Immanuel Kant holds the view that human beings are quintessentially rational creatures; hence, the emotions are not much more than a form of excessive psychological baggage that human beings could do without. Indeed, for anyone familiar with the television series Star Trek, it would seem that according to Kant human beings bear a quite striking resemblance to the individual known as Spock who is a Vulcan and thus a completely rational creature who does not have emotions and feelings. For Kant, that is how human beings should be when they are at their very best as rational creatures. Interestingly, a question that mightily presents itself is whether or not evolution supports Kant＇s ideal conception of human beings as quintessentially rational creatures. It is quite clear that, unlike Vulcans, human beings are capable of emotions and feelings. Indeed, the capacity for emotions and feelings clearly constitutes a fundamental part of the biological make-up of human beings. With that reality, there are two primary ways we can go. On the one hand, we can hold that notwithstanding the capacity that human beings have for emotions and feelings, it is nonetheless the case that humans should mightily strive to realize the Kantian conception of the rational self. On the other hand, we can hold that the emotions and feelings play a very profound and fundamental role in the survival and self-realization of human beings. In what follows, I shall offer a number of considerations in support of the second line of thought; for in point of fact, the first option is not really an option given the psychological configuration of human beings.展开更多
The functioning mechanism of groundwater and its make-up water in the process of ground subsidence was studied from such three aspects as osmotic corrasion, osmotic pressure effect and concretion effect, As to osmotic...The functioning mechanism of groundwater and its make-up water in the process of ground subsidence was studied from such three aspects as osmotic corrasion, osmotic pressure effect and concretion effect, As to osmotic corrasion, its forming conditions, mechanical mechanism and process were analyzed, As to osmotic pressure effect, it was mainly studied from hydrostatic pressurizing effect, sop softening effect and negative pressure sealing effect. Through concretion and saturation of soil, the factors of concretion settlement were analyzed. The results showed that both groundwater and its make-up water are important triggering factors to ground subsidence.展开更多
为了提高完井油管柱螺纹连接密封性能,针对高温高压气井油管特殊螺纹接头在复杂工况下易发生泄漏的问题,通过失效分析、有限元模拟与全尺寸试验相结合的方法,系统研究了螺纹接头的密封性能。研究发现,传统螺纹接头因设计公差不足、应力...为了提高完井油管柱螺纹连接密封性能,针对高温高压气井油管特殊螺纹接头在复杂工况下易发生泄漏的问题,通过失效分析、有限元模拟与全尺寸试验相结合的方法,系统研究了螺纹接头的密封性能。研究发现,传统螺纹接头因设计公差不足、应力集中及密封面接触压力分布不均等问题,易导致粘扣、塑性变形及腐蚀泄漏。通过对比锥面对锥面与球面对锥面两种密封结构的特性,提出一种新型复合密封结构(锥面+球面),集成锥面结构的高抗粘扣性和球面结构的密封稳定性优势。有限元分析表明,新型结构在拉伸载荷下密封接触面积恒定,主密封面远离应力腐蚀区域,有效降低局部塑性变形。新型气密封螺纹满足API RP 5C5:2017标准四级试验要求,显著提高了高温高压环境下的密封可靠性。研究结果可为高温高压用油气井完井管柱的安全设计提供理论依据和技术支撑。展开更多
A new UN Security Council has been unveiled to the world as India,South Africa,Germany,Portugal and Colombia won two-year non-permanent seat on the council.
From June 7-10 hair and beauty specialists from 20 countries in Asia gathered in Beijing to take part in the 1994 ⅩⅧ Asian Hairstyling and Make-up Competition. This was the first time the event was held in China. At...From June 7-10 hair and beauty specialists from 20 countries in Asia gathered in Beijing to take part in the 1994 ⅩⅧ Asian Hairstyling and Make-up Competition. This was the first time the event was held in China. At the same time an international cosmetic, hair and skin care products oriental beauty exposition also was taking place. Throughout history men and women have paid attention to physical beauty, both in the West and the East,展开更多
文摘As we all know, Immanuel Kant holds the view that human beings are quintessentially rational creatures; hence, the emotions are not much more than a form of excessive psychological baggage that human beings could do without. Indeed, for anyone familiar with the television series Star Trek, it would seem that according to Kant human beings bear a quite striking resemblance to the individual known as Spock who is a Vulcan and thus a completely rational creature who does not have emotions and feelings. For Kant, that is how human beings should be when they are at their very best as rational creatures. Interestingly, a question that mightily presents itself is whether or not evolution supports Kant＇s ideal conception of human beings as quintessentially rational creatures. It is quite clear that, unlike Vulcans, human beings are capable of emotions and feelings. Indeed, the capacity for emotions and feelings clearly constitutes a fundamental part of the biological make-up of human beings. With that reality, there are two primary ways we can go. On the one hand, we can hold that notwithstanding the capacity that human beings have for emotions and feelings, it is nonetheless the case that humans should mightily strive to realize the Kantian conception of the rational self. On the other hand, we can hold that the emotions and feelings play a very profound and fundamental role in the survival and self-realization of human beings. In what follows, I shall offer a number of considerations in support of the second line of thought; for in point of fact, the first option is not really an option given the psychological configuration of human beings.
基金financially supported by the National Nature Science Foundation of China (No.50490271)the National Key Technologies R & D Program of China (No.2004BA615A-18).
文摘The functioning mechanism of groundwater and its make-up water in the process of ground subsidence was studied from such three aspects as osmotic corrasion, osmotic pressure effect and concretion effect, As to osmotic corrasion, its forming conditions, mechanical mechanism and process were analyzed, As to osmotic pressure effect, it was mainly studied from hydrostatic pressurizing effect, sop softening effect and negative pressure sealing effect. Through concretion and saturation of soil, the factors of concretion settlement were analyzed. The results showed that both groundwater and its make-up water are important triggering factors to ground subsidence.
文摘为了提高完井油管柱螺纹连接密封性能,针对高温高压气井油管特殊螺纹接头在复杂工况下易发生泄漏的问题,通过失效分析、有限元模拟与全尺寸试验相结合的方法,系统研究了螺纹接头的密封性能。研究发现,传统螺纹接头因设计公差不足、应力集中及密封面接触压力分布不均等问题,易导致粘扣、塑性变形及腐蚀泄漏。通过对比锥面对锥面与球面对锥面两种密封结构的特性,提出一种新型复合密封结构(锥面+球面),集成锥面结构的高抗粘扣性和球面结构的密封稳定性优势。有限元分析表明,新型结构在拉伸载荷下密封接触面积恒定,主密封面远离应力腐蚀区域,有效降低局部塑性变形。新型气密封螺纹满足API RP 5C5:2017标准四级试验要求,显著提高了高温高压环境下的密封可靠性。研究结果可为高温高压用油气井完井管柱的安全设计提供理论依据和技术支撑。
文摘A new UN Security Council has been unveiled to the world as India,South Africa,Germany,Portugal and Colombia won two-year non-permanent seat on the council.
文摘From June 7-10 hair and beauty specialists from 20 countries in Asia gathered in Beijing to take part in the 1994 ⅩⅧ Asian Hairstyling and Make-up Competition. This was the first time the event was held in China. At the same time an international cosmetic, hair and skin care products oriental beauty exposition also was taking place. Throughout history men and women have paid attention to physical beauty, both in the West and the East,
