A growing number of oil and gas reservoirs have been discovered in granite and metamorphic crystallized rock areas. Statistics show that, about 157 oil and gas fields were found in crystallized bedrocks, with oil rese...A growing number of oil and gas reservoirs have been discovered in granite and metamorphic crystallized rock areas. Statistics show that, about 157 oil and gas fields were found in crystallized bedrocks, with oil reserves of 5048x 10^8 t, and gas reserves of 2681x10^8m3. Among the discovered industrial oil and gas fields hosted in crystallized rocks, most occurred in granite rocks, occupying 40% in quantity and 75% in reserves, followed by those hosted in mafic and ultra-mafic rocks （about 3%）, and then tbllowed by those in volcanic rocks and metamorphic rocks.展开更多
Nowadays,crowded environment and high-speed life pace are likely to bring mental stress and fatigue to citizens.How to apply achievements of the restorative environment into urban planning and environmental design has...Nowadays,crowded environment and high-speed life pace are likely to bring mental stress and fatigue to citizens.How to apply achievements of the restorative environment into urban planning and environmental design has received more attention in recent years.Earlier research does not provide detailed information about the specific components of the physical environment that support restoration.This study explores which characteristics of the street environment and psychological factors of the street environment have an impact on subjective restoration.The streets were sampled from Shenzhen.Each street was represented by a single photo.The photo was quantified in terms of the different objective street components and also rated on psychological variables related to restoration.The rating on the psychological variables,being away,fascination,coherence,scope,the likelihood of restoration,and preference were provided by people of various ages and occupations.The results show that:1)the proportion of natural elements have the greatest impact on street restoration benefits and preference,and its impact is robust;2)the two characteristics of street safety and quiet are important to street restoration benefits and preferences;3)fascination and being away have a greater impact on restorative benefits of streets,followed by coherence,and the scope of the street has no significant effect on restorative benefits.The study could provide evidence for policy-makers and urban design and planning interventions.展开更多
Through carefully studying the theory of speech acts and the literature concerning it,the author made some new findings which reflects in three aspects:the similarities and differences in Chinese and English in expres...Through carefully studying the theory of speech acts and the literature concerning it,the author made some new findings which reflects in three aspects:the similarities and differences in Chinese and English in expressing the same speech act,the relations between different types of speech acts and the correspondence between sentence sets and sets of speech acts.展开更多
Medical crowdfunding platform helps numerous patients access enthusiastic donors and address financial difficulties,but many crowdfunding projects fail to reach their target amount.Thus,how a crowdfunding project can ...Medical crowdfunding platform helps numerous patients access enthusiastic donors and address financial difficulties,but many crowdfunding projects fail to reach their target amount.Thus,how a crowdfunding project can attract considerable donors is question-able.This study examines the effects of attention and reliability on the performance of online medical crowdfunding projects and how target amount changes such effects.Based on objective data of 1177 crowdfunding projects from 2016 to January 2018 in a large medical crowdfunding platform in China,we find that the project donor's attention(the number of forwards and comments)and reliability(the number of dynamic updates,empirical users,and pictures)positively affect the medical crowdfunding performance of the projects.However,target amount weakens the positive effects of the number of for-wards and comments in online medical crowdfunding projects.Therefore,project spon-sors should set reasonable target fundraising amounts while showing attention and reliability to donors.Compared with previous research that mainly explores the influence of external factors on crowdfunding outcomes from the perspective of donors,this paper focuses on the internal project factors and explores the concerns and trustworthiness of crowdfunding projects,enriching the literature related to fundraising ability in the project.展开更多
文摘A growing number of oil and gas reservoirs have been discovered in granite and metamorphic crystallized rock areas. Statistics show that, about 157 oil and gas fields were found in crystallized bedrocks, with oil reserves of 5048x 10^8 t, and gas reserves of 2681x10^8m3. Among the discovered industrial oil and gas fields hosted in crystallized rocks, most occurred in granite rocks, occupying 40% in quantity and 75% in reserves, followed by those hosted in mafic and ultra-mafic rocks （about 3%）, and then tbllowed by those in volcanic rocks and metamorphic rocks.
文摘Nowadays,crowded environment and high-speed life pace are likely to bring mental stress and fatigue to citizens.How to apply achievements of the restorative environment into urban planning and environmental design has received more attention in recent years.Earlier research does not provide detailed information about the specific components of the physical environment that support restoration.This study explores which characteristics of the street environment and psychological factors of the street environment have an impact on subjective restoration.The streets were sampled from Shenzhen.Each street was represented by a single photo.The photo was quantified in terms of the different objective street components and also rated on psychological variables related to restoration.The rating on the psychological variables,being away,fascination,coherence,scope,the likelihood of restoration,and preference were provided by people of various ages and occupations.The results show that:1)the proportion of natural elements have the greatest impact on street restoration benefits and preference,and its impact is robust;2)the two characteristics of street safety and quiet are important to street restoration benefits and preferences;3)fascination and being away have a greater impact on restorative benefits of streets,followed by coherence,and the scope of the street has no significant effect on restorative benefits.The study could provide evidence for policy-makers and urban design and planning interventions.
文摘Through carefully studying the theory of speech acts and the literature concerning it,the author made some new findings which reflects in three aspects:the similarities and differences in Chinese and English in expressing the same speech act,the relations between different types of speech acts and the correspondence between sentence sets and sets of speech acts.
基金This work was supported by the National Natural Science Foundation(NSFC)Programs of China[91646113,71722014,and 71471141]National Major Social Science Foundation Programs of China[16ZDA013].
文摘Medical crowdfunding platform helps numerous patients access enthusiastic donors and address financial difficulties,but many crowdfunding projects fail to reach their target amount.Thus,how a crowdfunding project can attract considerable donors is question-able.This study examines the effects of attention and reliability on the performance of online medical crowdfunding projects and how target amount changes such effects.Based on objective data of 1177 crowdfunding projects from 2016 to January 2018 in a large medical crowdfunding platform in China,we find that the project donor's attention(the number of forwards and comments)and reliability(the number of dynamic updates,empirical users,and pictures)positively affect the medical crowdfunding performance of the projects.However,target amount weakens the positive effects of the number of for-wards and comments in online medical crowdfunding projects.Therefore,project spon-sors should set reasonable target fundraising amounts while showing attention and reliability to donors.Compared with previous research that mainly explores the influence of external factors on crowdfunding outcomes from the perspective of donors,this paper focuses on the internal project factors and explores the concerns and trustworthiness of crowdfunding projects,enriching the literature related to fundraising ability in the project.
