A study is conducted on the performances of a solar powered continuous-adsorption refrigerator considering two particular days as references cases,namely,the summer solstice(June 21st)and the autumn equinox(September ...A study is conducted on the performances of a solar powered continuous-adsorption refrigerator considering two particular days as references cases,namely,the summer solstice(June 21st)and the autumn equinox(September 21st).The cooling capacity,system performance coefficient and the daily rate of available cooling energy are assessed.The main goal is to compare the performances of a solar adsorption chiller equipped with a hot water tank(HWT)with an equivalent system relying on solar collectors with no heat storage module.The daily cooling rates for the solar refrigerator are found to be 102.4 kWh and 74.3 kWh,respectively,on June 21st and on September 21st,using a total collector’s area of 43.47 m2.The corresponding values for the adsorption chiller equipped with a hot water tank of 2 m3(and using a total collector’s area of 72.45 m2),are 127.1 kWh and 106.13 kWh,respectively.展开更多
Medical education is an important cornerstone for the development of healthcare,and medical humanities education,as an integral part of medical education,plays an irreplaceable role in cultivating people’s health gua...Medical education is an important cornerstone for the development of healthcare,and medical humanities education,as an integral part of medical education,plays an irreplaceable role in cultivating people’s health guardians with high medical ethics.We adopted the method of stratified random sampling to select 309 students and 107 faculty members from three independent medical colleges in Sichuan province as the research subjects and distributed questionnaire surveys investigating in three dimensions:overall cognition of medical humanities,evaluation of medical humanistic qualities,and the current situation of medical humanities education,supplemented by an in-depth literature review and interviews with subject matter experts.We found that“tech-centrism”still has a great influence,the self-evaluation of medical students’humanistic quality is generally not high,the educational concept of“emphasizing professional skills over morality”of faculty and staff is still quite prevalent,and there is still the“last mile”phenomenon in medical humanities education.In order to promote the integrated development of“new medicine”and“new liberal arts”and break the barriers of“tech-centrism”and“instrumental rationality,”it is necessary to change the educational concept and strengthen the education of all employees,break through the bottleneck of internships and strengthen the whole process of education,integrate educational resources and strengthen all-round education,improve the incentive mechanisms,strengthen the assessment methods,and provide Chinese wisdom and Chinese solutions for the development of medical humanities education.展开更多
A novel method for achieving a copper（II）-catalyzed domino reaction for the construction of 2-aryl quinazolinones,without the addition of any ligand and additive,has been developed.The domino reaction achieved N-（a...A novel method for achieving a copper（II）-catalyzed domino reaction for the construction of 2-aryl quinazolinones,without the addition of any ligand and additive,has been developed.The domino reaction achieved N-（a-substituted）benzylation,benzylic C–H amidation,and C–C（or C–H） bond cleavage.展开更多
Climate change policies imply significant reductions of energy use in buildings. For this, prevailing energy performance standards fall short, notwithstanding the emergence of stricter national building regulations. R...Climate change policies imply significant reductions of energy use in buildings. For this, prevailing energy performance standards fall short, notwithstanding the emergence of stricter national building regulations. Regulations cover new built and renovation projects. New built houses that miss the best energy performance are soon candidate for energy upgrading. We investigate the architectural and economic aspects of upgrading recently built detached massive brick houses in Flanders （Belgium）. For representing actual building practices, consecutive upgrading steps from ｜ower to higher energy performance levels are considered. Questions addressed are： What is technically feasible in upgrading such houses？ Which construction works are easy, which difficult？ What are the architectural and financial consequences of a thorough upgrading？ The analysis shows that deep energy transformations are financially unacceptable, related to the irrevocab｜e character of investments in energy efficiency attributes of massive brick houses. This confirms that energy performance endowment measures should be designed and implemented at the time of first construction of a building.展开更多
Traumatic brain injury（TBI）is a common disability-causing neurological disorder.For successful rehabilitation of TBI patients,a thorough evaluation of the presence and extent of neural injury is essential for determ...Traumatic brain injury（TBI）is a common disability-causing neurological disorder.For successful rehabilitation of TBI patients,a thorough evaluation of the presence and extent of neural injury is essential for determining the optimal rehabilitation strategy and accurate prognosis.However,it is difficult to determine the status of neural tracts.展开更多
In this papert the hard problem of the thorough garbage collection in uncoordinated Checkpointing algorithms is studied. After introduction of the traditional garbage collecting scheme, with which only obsolete checkp...In this papert the hard problem of the thorough garbage collection in uncoordinated Checkpointing algorithms is studied. After introduction of the traditional garbage collecting scheme, with which only obsolete checkpoints can be discarded, it is shown that this kind of traditional method may fail to discard any checkpoint in some special cases, and it is necessary and urgent to find a thorough garbage collecting method, with which all the checkpoints useless for any future rollback-recovery including the obsolete ones can be discarded. Then, the Thorough Garbage Collection Theorem is proposed and proved, which ensures the feasibility of the thorough garbage collection, and gives the method to calculate the set of the useful checkpoints as well.展开更多
At present, air pollution has become the main problem in many developed and developing countries. Especially, in Ulaanbaatar city of Mongolia, it has become one of the most tackled issues of every citizen living in th...At present, air pollution has become the main problem in many developed and developing countries. Especially, in Ulaanbaatar city of Mongolia, it has become one of the most tackled issues of every citizen living in the capital city. The aim of this study is to highlight the trend of air pollution and pollution sources in the Mongolian capital and conduct some air pollution analyses. Overall, the study indicates that the air pollution in Ulaanbaatar city is a very serious problem and for its reduction, rapid and thorough measures should be taken.展开更多
A thorough investigation on the constitution of Mn-Ga alloys has been made by means of X-rays incorporated with differential thermal analysis. The system appears to be important in that highly ferromagnetic alloys hav...A thorough investigation on the constitution of Mn-Ga alloys has been made by means of X-rays incorporated with differential thermal analysis. The system appears to be important in that highly ferromagnetic alloys have been found in the Mn-Al system near the equiatomic composition after special treatment, and Ga belongs to the same group as Al in the periodic table. Forty-three alloys were prepared in展开更多
argues that the actual needs of the urban economy and city planning call for a thorough-going study of urban spatial structures as an important economic and socialcategory.Rao gives 'urban spatial structure' a...argues that the actual needs of the urban economy and city planning call for a thorough-going study of urban spatial structures as an important economic and socialcategory.Rao gives 'urban spatial structure' a meaning of its own,on the basis ofwhich he outlines the economic significance of the various material entities within acity’s scope in terms of three aspects:density,location (composition) and urban for-mation.After pointing out the character and features of the economic benefits con-ditioned by urban spatial structures,Rao concludes that urban development plays afoundational role for all economic work and is a decisive factor conditioning a city’s economic展开更多
The emission of fragments is one of the main characteristic features of high energy nuclear reaction. Studies on the fragmentation process play an important role in the understanding about the structure of nucleus and...The emission of fragments is one of the main characteristic features of high energy nuclear reaction. Studies on the fragmentation process play an important role in the understanding about the structure of nucleus and the mechanism of high energy nuclear reaction. Extensive investigations of the production characteristics of Li^8 fragments have been made, but studies of heavy fragments with higher charges are rather rare. Concerning the Be^8 fragments, although Crussard and Perkins made observations on Be^8 fragments produced in cosmic ray stars in earlier years, and Pretis, Deka, and Baumann made further studies on Be^8 fragments produced in the interaction of 4.5 Gev/c π^- and 25 Gev protons with展开更多
基金supported by Campus France in the frame of the PHC-Maghreb 19Mag29 Project.We would like to thank also our Ministries and research units。
文摘A study is conducted on the performances of a solar powered continuous-adsorption refrigerator considering two particular days as references cases,namely,the summer solstice(June 21st)and the autumn equinox(September 21st).The cooling capacity,system performance coefficient and the daily rate of available cooling energy are assessed.The main goal is to compare the performances of a solar adsorption chiller equipped with a hot water tank(HWT)with an equivalent system relying on solar collectors with no heat storage module.The daily cooling rates for the solar refrigerator are found to be 102.4 kWh and 74.3 kWh,respectively,on June 21st and on September 21st,using a total collector’s area of 43.47 m2.The corresponding values for the adsorption chiller equipped with a hot water tank of 2 m3(and using a total collector’s area of 72.45 m2),are 127.1 kWh and 106.13 kWh,respectively.
基金funded by the Ministry of Education Demonstration Excellent Teaching and Research Team Construction Project:Research on the Effectiveness Improvement of Ideological and Political Theory Courses in Medical Universities(19JDSZK008)the Education Work Committee of Sichuan Provincial Committee of the Communist Party of China“All-staff,Whole-process,and All-round Education”Comprehensive Reform Pilot Colleges(Majors)Project:“Research and Practice on the Collaborative Education Mechanism of the Integration of Medical Humanistic Spirit and Ideological and Political Courses.”。
文摘Medical education is an important cornerstone for the development of healthcare,and medical humanities education,as an integral part of medical education,plays an irreplaceable role in cultivating people’s health guardians with high medical ethics.We adopted the method of stratified random sampling to select 309 students and 107 faculty members from three independent medical colleges in Sichuan province as the research subjects and distributed questionnaire surveys investigating in three dimensions:overall cognition of medical humanities,evaluation of medical humanistic qualities,and the current situation of medical humanities education,supplemented by an in-depth literature review and interviews with subject matter experts.We found that“tech-centrism”still has a great influence,the self-evaluation of medical students’humanistic quality is generally not high,the educational concept of“emphasizing professional skills over morality”of faculty and staff is still quite prevalent,and there is still the“last mile”phenomenon in medical humanities education.In order to promote the integrated development of“new medicine”and“new liberal arts”and break the barriers of“tech-centrism”and“instrumental rationality,”it is necessary to change the educational concept and strengthen the education of all employees,break through the bottleneck of internships and strengthen the whole process of education,integrate educational resources and strengthen all-round education,improve the incentive mechanisms,strengthen the assessment methods,and provide Chinese wisdom and Chinese solutions for the development of medical humanities education.
基金the National Natural Science Foundation of China (Nos.21302188,81072576,91027033)Chinese Academy of Sciences (Nos.KJCX2-EW-N06-01 and XDA09030307) for financial support
文摘A novel method for achieving a copper（II）-catalyzed domino reaction for the construction of 2-aryl quinazolinones,without the addition of any ligand and additive,has been developed.The domino reaction achieved N-（a-substituted）benzylation,benzylic C–H amidation,and C–C（or C–H） bond cleavage.
文摘Climate change policies imply significant reductions of energy use in buildings. For this, prevailing energy performance standards fall short, notwithstanding the emergence of stricter national building regulations. Regulations cover new built and renovation projects. New built houses that miss the best energy performance are soon candidate for energy upgrading. We investigate the architectural and economic aspects of upgrading recently built detached massive brick houses in Flanders （Belgium）. For representing actual building practices, consecutive upgrading steps from ｜ower to higher energy performance levels are considered. Questions addressed are： What is technically feasible in upgrading such houses？ Which construction works are easy, which difficult？ What are the architectural and financial consequences of a thorough upgrading？ The analysis shows that deep energy transformations are financially unacceptable, related to the irrevocab｜e character of investments in energy efficiency attributes of massive brick houses. This confirms that energy performance endowment measures should be designed and implemented at the time of first construction of a building.
基金supported by Basic Science Research Program through the National Research Foundation of Korea(NRF)funded by the Ministry of Education,No.2015R1D1A4A01020385
文摘Traumatic brain injury（TBI）is a common disability-causing neurological disorder.For successful rehabilitation of TBI patients,a thorough evaluation of the presence and extent of neural injury is essential for determining the optimal rehabilitation strategy and accurate prognosis.However,it is difficult to determine the status of neural tracts.
文摘In this papert the hard problem of the thorough garbage collection in uncoordinated Checkpointing algorithms is studied. After introduction of the traditional garbage collecting scheme, with which only obsolete checkpoints can be discarded, it is shown that this kind of traditional method may fail to discard any checkpoint in some special cases, and it is necessary and urgent to find a thorough garbage collecting method, with which all the checkpoints useless for any future rollback-recovery including the obsolete ones can be discarded. Then, the Thorough Garbage Collection Theorem is proposed and proved, which ensures the feasibility of the thorough garbage collection, and gives the method to calculate the set of the useful checkpoints as well.
文摘At present, air pollution has become the main problem in many developed and developing countries. Especially, in Ulaanbaatar city of Mongolia, it has become one of the most tackled issues of every citizen living in the capital city. The aim of this study is to highlight the trend of air pollution and pollution sources in the Mongolian capital and conduct some air pollution analyses. Overall, the study indicates that the air pollution in Ulaanbaatar city is a very serious problem and for its reduction, rapid and thorough measures should be taken.
文摘A thorough investigation on the constitution of Mn-Ga alloys has been made by means of X-rays incorporated with differential thermal analysis. The system appears to be important in that highly ferromagnetic alloys have been found in the Mn-Al system near the equiatomic composition after special treatment, and Ga belongs to the same group as Al in the periodic table. Forty-three alloys were prepared in
文摘argues that the actual needs of the urban economy and city planning call for a thorough-going study of urban spatial structures as an important economic and socialcategory.Rao gives 'urban spatial structure' a meaning of its own,on the basis ofwhich he outlines the economic significance of the various material entities within acity’s scope in terms of three aspects:density,location (composition) and urban for-mation.After pointing out the character and features of the economic benefits con-ditioned by urban spatial structures,Rao concludes that urban development plays afoundational role for all economic work and is a decisive factor conditioning a city’s economic
文摘The emission of fragments is one of the main characteristic features of high energy nuclear reaction. Studies on the fragmentation process play an important role in the understanding about the structure of nucleus and the mechanism of high energy nuclear reaction. Extensive investigations of the production characteristics of Li^8 fragments have been made, but studies of heavy fragments with higher charges are rather rare. Concerning the Be^8 fragments, although Crussard and Perkins made observations on Be^8 fragments produced in cosmic ray stars in earlier years, and Pretis, Deka, and Baumann made further studies on Be^8 fragments produced in the interaction of 4.5 Gev/c π^- and 25 Gev protons with
