现代思想主流的一个核心观点是将"理性自利的动机"(the motive of rational self-interest)看作人的主导动机。这个利益动机的概念是近代的思想创造。研究者们普遍认为,在最早运用利益动机解释人类行为的思想家里,休谟是典型...现代思想主流的一个核心观点是将"理性自利的动机"(the motive of rational self-interest)看作人的主导动机。这个利益动机的概念是近代的思想创造。研究者们普遍认为,在最早运用利益动机解释人类行为的思想家里,休谟是典型代表,这个传统看法是对休谟的误读。休谟虽然重视人的自利倾向,但他却否认这类激情与理性可以稳定结合,形成理性自利的动机,更否认这个动机可以持续稳定地主导人的行为。他强调激情与欲望的多种多样,批判近代式的化约倾向。考察休谟的这种分析有助于揭示自由主义在其早期的多样性以及这种复杂性如何为现代思想主流所掩盖。展开更多
Spontaneous combustion of coal is a major cause of coal mine fires.It not only poses a severe hazard to the safe extraction of coal resources,but also jeopardizes the safety of mine workers.The development of a scient...Spontaneous combustion of coal is a major cause of coal mine fires.It not only poses a severe hazard to the safe extraction of coal resources,but also jeopardizes the safety of mine workers.The development of a scientific management system of coal spontaneous combustion is of vital importance to the safe production of coal mine.This paper provides a comparative analysis of a range of worldwide prediction techniques and methods for coal spontaneous combustion,and systematically introduces the trigger action response plans(TARPs)system used in Australian coal mines for managing the spontaneous heating of coal.An artificial neural network model has been established on the basis of real coal mine operational conditions.Through studying and training the neural network model,prediction errors can be controlled within the allowable range.The trained model is then applied to the conditions of Nos.1 and 3 coal seams located in Weijiadi Coal Mine to demonstrate its feasibility for spontaneous combustion assessment.Based upon the TARPs system which is commonly used in Australian longwall mines,a TARPs system has been developed for Weijiadi Coal Mine to assist the management of spontaneous combustion hazard and ensure the safe operation of its mining activities.展开更多
In 19 patients with idiopathic dilated cardiomyopathy and symptoms of congetive heart failure, left ventricular (LV) systolic performance and diastolic velocity profiles were assessed by two- dimensional echocardiogra...In 19 patients with idiopathic dilated cardiomyopathy and symptoms of congetive heart failure, left ventricular (LV) systolic performance and diastolic velocity profiles were assessed by two- dimensional echocardiography and pulsed wave Doppler at rest and during handgrip exercise before and ninety minutes after administration of captopril (mean dose 25 +12mg; range 12. 5─50mg). Although heart rate and blood pressure increased similarly during handgrip exercise before and after captopril treatment, both were lower with handgrip exercise during captopril treatment. The results from this study indicated that acute angiotensin converting enzyme inhibition with captopril reduces preload and afterload and ameliorates handgrip exercise-induced LV systolic and diastolic filling dysfunction in patients with congestive heart failure secondary to idiopathic dilated cardiomyopathy.展开更多
文摘现代思想主流的一个核心观点是将"理性自利的动机"(the motive of rational self-interest)看作人的主导动机。这个利益动机的概念是近代的思想创造。研究者们普遍认为,在最早运用利益动机解释人类行为的思想家里,休谟是典型代表,这个传统看法是对休谟的误读。休谟虽然重视人的自利倾向,但他却否认这类激情与理性可以稳定结合,形成理性自利的动机,更否认这个动机可以持续稳定地主导人的行为。他强调激情与欲望的多种多样,批判近代式的化约倾向。考察休谟的这种分析有助于揭示自由主义在其早期的多样性以及这种复杂性如何为现代思想主流所掩盖。
基金provided for this work by the China Scholarship CouncilNational Natural Science Funds of China(No.51304212)
文摘Spontaneous combustion of coal is a major cause of coal mine fires.It not only poses a severe hazard to the safe extraction of coal resources,but also jeopardizes the safety of mine workers.The development of a scientific management system of coal spontaneous combustion is of vital importance to the safe production of coal mine.This paper provides a comparative analysis of a range of worldwide prediction techniques and methods for coal spontaneous combustion,and systematically introduces the trigger action response plans(TARPs)system used in Australian coal mines for managing the spontaneous heating of coal.An artificial neural network model has been established on the basis of real coal mine operational conditions.Through studying and training the neural network model,prediction errors can be controlled within the allowable range.The trained model is then applied to the conditions of Nos.1 and 3 coal seams located in Weijiadi Coal Mine to demonstrate its feasibility for spontaneous combustion assessment.Based upon the TARPs system which is commonly used in Australian longwall mines,a TARPs system has been developed for Weijiadi Coal Mine to assist the management of spontaneous combustion hazard and ensure the safe operation of its mining activities.
文摘In 19 patients with idiopathic dilated cardiomyopathy and symptoms of congetive heart failure, left ventricular (LV) systolic performance and diastolic velocity profiles were assessed by two- dimensional echocardiography and pulsed wave Doppler at rest and during handgrip exercise before and ninety minutes after administration of captopril (mean dose 25 +12mg; range 12. 5─50mg). Although heart rate and blood pressure increased similarly during handgrip exercise before and after captopril treatment, both were lower with handgrip exercise during captopril treatment. The results from this study indicated that acute angiotensin converting enzyme inhibition with captopril reduces preload and afterload and ameliorates handgrip exercise-induced LV systolic and diastolic filling dysfunction in patients with congestive heart failure secondary to idiopathic dilated cardiomyopathy.
