Parmi les différentes régions de France,la Provence,une région dotée d'une histoire ancienne et séculaire1,occupe une place particulière.Un climat favorable,la beauté de sites et...Parmi les différentes régions de France,la Provence,une région dotée d'une histoire ancienne et séculaire1,occupe une place particulière.Un climat favorable,la beauté de sites et de paysages naturels sont ses premiers atouts.A cela s'ajoutent ses belles et prestigieuses particularités de la région qui constituent une fièreté des Provenaux.展开更多
Parmi les différentes régions de France,la Provence,une région dotée d'une histoire ancienne et séculaire1,occupe une place particulière.Un climat favorable,la beauté de sites et...Parmi les différentes régions de France,la Provence,une région dotée d'une histoire ancienne et séculaire1,occupe une place particulière.Un climat favorable,la beauté de sites et de paysages naturels sont ses premiers atouts.A cela s'ajoutent ses belles et prestigieuses particularités de la région qui constituent une fièreté des Provenaux.展开更多
CHARM (Candesartan in Heart failure-Assessment of moRtality and Morbidity)研究的主要目的是比较坎地沙坦(candesartan)对慢性心力衰竭患者发病率和死亡率的影响,是一个多中心的国际合作研究,共入选7599例NYHA分级为Ⅱ～Ⅳ级的有...CHARM (Candesartan in Heart failure-Assessment of moRtality and Morbidity)研究的主要目的是比较坎地沙坦(candesartan)对慢性心力衰竭患者发病率和死亡率的影响,是一个多中心的国际合作研究,共入选7599例NYHA分级为Ⅱ～Ⅳ级的有症状的心力衰竭患者,它由3个试验组成:CHARM-Alternative研究、CHARM-Added研究和CHARM-Preserved研究.展开更多
A Biography of Napoleon, which is based on historical events, presents the readers a complicated, confident and imaginative Napoleon by depicting his mental progression, during which he works his miracle with his aspi...A Biography of Napoleon, which is based on historical events, presents the readers a complicated, confident and imaginative Napoleon by depicting his mental progression, during which he works his miracle with his aspiration, ambition and personal charm in the military history.展开更多
High-resolution satellite data have been playing an important role in agricultural remote sensing monitoring. However, the major data sources of high-resolution images are not owned by China. The cost of large scale u...High-resolution satellite data have been playing an important role in agricultural remote sensing monitoring. However, the major data sources of high-resolution images are not owned by China. The cost of large scale use of high resolution imagery data becomes prohibitive. In pace of the launch of the Chinese ＂High Resolution Earth Observation Systems＂, China is able to receive superb high-resolution remotely sensed images （GF series） that equalizes or even surpasses foreign similar satellites in respect of spatial resolution, scanning width and revisit period. This paper provides a perspective of using high resolution remote sensing data from satellite GF-1 for agriculture monitoring. It also assesses the applicability of GF-1 data for agricultural monitoring, and identifies potential applications from regional to national scales. GF-1＇s high resolution （i.e., 2 m/8 m）, high revisit cycle （i.e., 4 days）, and its visible and near-infrared （VNIR） spectral bands enable a continuous, efficient and effective agricultural dynamics monitoring. Thus, it has gradually substituted the foreign data sources for mapping crop planting areas, monitoring crop growth, estimating crop yield, monitoring natural disasters, and supporting precision and facility agriculture in China agricultural remote sensing monitoring system （CHARMS）. However, it is still at the initial stage of GF-1 data application in agricultural remote sensing monitoring. Advanced algorithms for estimating agronomic parameters and soil quality with GF-1 data need to be further investigated, especially for improving the performance of remote sensing monitoring in the fragmented landscapes. In addition, the thematic product series in terms of land cover, crop allocation, crop growth and production are required to be developed in association with other data sources at multiple spatial scales. Despite the advantages, the issues such as low spectrum resolution and image distortion associated with high spatial resolution and wide swath width, might pose challenges for GF-1 data applications and need to be addressed in future agricultural monitoring.展开更多
Considering the volatility of the propagation path for charmonium passing across the nuclear target in J/ψ formation from p-A collisions, the charmonium energy loss is investigated using Salgado-Wiedemann quenching w...Considering the volatility of the propagation path for charmonium passing across the nuclear target in J/ψ formation from p-A collisions, the charmonium energy loss is investigated using Salgado-Wiedemann quenching weights. A successful description regarding J/ψsuppression of R_(w(Fe)/Be)(x_F) from the E866 experiment for 0.2 <x_F<0.65 gives the transport coefficient q = 0.29 ± 0.07 GeV^2/fm for the colored cc energy loss.The calculated result indicates that radiative energy loss of a parton should be independent of its mass at high energy.The calculations are further compared to LHC and RHIC measurements.展开更多
Thoreau expresses his love for nature and criticism of materialism in Walden,emphasizing the harmonious relationship between nature and human beings.Besides this significance,rhetorical devices like simile,metaphor,pe...Thoreau expresses his love for nature and criticism of materialism in Walden,emphasizing the harmonious relationship between nature and human beings.Besides this significance,rhetorical devices like simile,metaphor,personification,parallelism,overstatement,irony and pun contribute to unique charm of this masterpiece's language and thoughts.展开更多
The mid-rapidity transverse momentum spectra of charmed mesons in Pb–Pb and pp(p)collisions are analyzed using the Tsallis–Pareto distribution derived from non-extensive statistics.We provide uniform descriptions of...The mid-rapidity transverse momentum spectra of charmed mesons in Pb–Pb and pp(p)collisions are analyzed using the Tsallis–Pareto distribution derived from non-extensive statistics.We provide uniform descriptions of both small and large systems over a wide range of collision energies and hadron transverse momenta.By establishing the relationship between the event multiplicity and Tsallis parameters,we observe that there is a signifi-cant linear relationship between the thermal temperature and Tsallis q parameter in Pb–Pb collisions at √sNN=2.76 TeV and 5.02 TeV.Further,the slope of the T–(q-1)parameter plot is positively correlated with the hadron mass.In addition,charmed mesons have a higher thermal temperature than light hadrons at the same q-1,indicat-ing that the charm flavor requires a higher temperature to reach the same degree of non-extensivity as light flavors in heavy-ion collisions.The same fit is applied to the trans-verse momentum spectra of charmed mesons in pp(p)collisions over a large energy range using the Tsallis–Pareto distribution.It is found that the thermal temperature increases with system energy,whereas the q parameter becomes saturated at the pp(p)limit,q-1=0.142±0.010.In addition,the results of most peripheral Pb–Pb collisions are found to approach the pp(p)limit,which suggests that more peripheral heavy-ion collisions are less affected by the medium and more similar to pp(p)collisions.展开更多
文摘Parmi les différentes régions de France,la Provence,une région dotée d'une histoire ancienne et séculaire1,occupe une place particulière.Un climat favorable,la beauté de sites et de paysages naturels sont ses premiers atouts.A cela s'ajoutent ses belles et prestigieuses particularités de la région qui constituent une fièreté des Provenaux.
文摘Parmi les différentes régions de France,la Provence,une région dotée d'une histoire ancienne et séculaire1,occupe une place particulière.Un climat favorable,la beauté de sites et de paysages naturels sont ses premiers atouts.A cela s'ajoutent ses belles et prestigieuses particularités de la région qui constituent une fièreté des Provenaux.
文摘CHARM (Candesartan in Heart failure-Assessment of moRtality and Morbidity)研究的主要目的是比较坎地沙坦(candesartan)对慢性心力衰竭患者发病率和死亡率的影响,是一个多中心的国际合作研究,共入选7599例NYHA分级为Ⅱ～Ⅳ级的有症状的心力衰竭患者,它由3个试验组成:CHARM-Alternative研究、CHARM-Added研究和CHARM-Preserved研究.
文摘A Biography of Napoleon, which is based on historical events, presents the readers a complicated, confident and imaginative Napoleon by depicting his mental progression, during which he works his miracle with his aspiration, ambition and personal charm in the military history.
基金financed by the National Natural Science Foundation of China (41501111 and 41271112)the National Non-profit Institute Research Grant of Chinese Academy of Agricultural Sciences (CAAS) (IARRP-2015-10)
文摘High-resolution satellite data have been playing an important role in agricultural remote sensing monitoring. However, the major data sources of high-resolution images are not owned by China. The cost of large scale use of high resolution imagery data becomes prohibitive. In pace of the launch of the Chinese ＂High Resolution Earth Observation Systems＂, China is able to receive superb high-resolution remotely sensed images （GF series） that equalizes or even surpasses foreign similar satellites in respect of spatial resolution, scanning width and revisit period. This paper provides a perspective of using high resolution remote sensing data from satellite GF-1 for agriculture monitoring. It also assesses the applicability of GF-1 data for agricultural monitoring, and identifies potential applications from regional to national scales. GF-1＇s high resolution （i.e., 2 m/8 m）, high revisit cycle （i.e., 4 days）, and its visible and near-infrared （VNIR） spectral bands enable a continuous, efficient and effective agricultural dynamics monitoring. Thus, it has gradually substituted the foreign data sources for mapping crop planting areas, monitoring crop growth, estimating crop yield, monitoring natural disasters, and supporting precision and facility agriculture in China agricultural remote sensing monitoring system （CHARMS）. However, it is still at the initial stage of GF-1 data application in agricultural remote sensing monitoring. Advanced algorithms for estimating agronomic parameters and soil quality with GF-1 data need to be further investigated, especially for improving the performance of remote sensing monitoring in the fragmented landscapes. In addition, the thematic product series in terms of land cover, crop allocation, crop growth and production are required to be developed in association with other data sources at multiple spatial scales. Despite the advantages, the issues such as low spectrum resolution and image distortion associated with high spatial resolution and wide swath width, might pose challenges for GF-1 data applications and need to be addressed in future agricultural monitoring.
基金supported in part by the National Natural Science Foundation of China(No.11405043)the Natural Science Foundation of Hebei Province(No.A2018209269)
文摘Considering the volatility of the propagation path for charmonium passing across the nuclear target in J/ψ formation from p-A collisions, the charmonium energy loss is investigated using Salgado-Wiedemann quenching weights. A successful description regarding J/ψsuppression of R_(w(Fe)/Be)(x_F) from the E866 experiment for 0.2 <x_F<0.65 gives the transport coefficient q = 0.29 ± 0.07 GeV^2/fm for the colored cc energy loss.The calculated result indicates that radiative energy loss of a parton should be independent of its mass at high energy.The calculations are further compared to LHC and RHIC measurements.
文摘Thoreau expresses his love for nature and criticism of materialism in Walden,emphasizing the harmonious relationship between nature and human beings.Besides this significance,rhetorical devices like simile,metaphor,personification,parallelism,overstatement,irony and pun contribute to unique charm of this masterpiece's language and thoughts.
基金This is supported by the National Key Research and Development Program of China(Nos.2018YFE0205200 and 2018YFE0104700)National Natural Science Foundation of China(Nos.11890712 and 12061141008)+1 种基金Strategic Priority Research Program of CAS(No.XDB34030000)Anhui Provincial Natural Science Foundation(No.1808085J02).
文摘The mid-rapidity transverse momentum spectra of charmed mesons in Pb–Pb and pp(p)collisions are analyzed using the Tsallis–Pareto distribution derived from non-extensive statistics.We provide uniform descriptions of both small and large systems over a wide range of collision energies and hadron transverse momenta.By establishing the relationship between the event multiplicity and Tsallis parameters,we observe that there is a signifi-cant linear relationship between the thermal temperature and Tsallis q parameter in Pb–Pb collisions at √sNN=2.76 TeV and 5.02 TeV.Further,the slope of the T–(q-1)parameter plot is positively correlated with the hadron mass.In addition,charmed mesons have a higher thermal temperature than light hadrons at the same q-1,indicat-ing that the charm flavor requires a higher temperature to reach the same degree of non-extensivity as light flavors in heavy-ion collisions.The same fit is applied to the trans-verse momentum spectra of charmed mesons in pp(p)collisions over a large energy range using the Tsallis–Pareto distribution.It is found that the thermal temperature increases with system energy,whereas the q parameter becomes saturated at the pp(p)limit,q-1=0.142±0.010.In addition,the results of most peripheral Pb–Pb collisions are found to approach the pp(p)limit,which suggests that more peripheral heavy-ion collisions are less affected by the medium and more similar to pp(p)collisions.
