森林是我们最重要的自然资源之一。在保护森林的过程中,原住民扮演的角色尤其重要.There's a first time for everything:the Paris Agreement on climate change recognized the intrinsic relationship between indigenous people...森林是我们最重要的自然资源之一。在保护森林的过程中,原住民扮演的角色尤其重要.There's a first time for everything:the Paris Agreement on climate change recognized the intrinsic relationship between indigenous people and their environment Whether they're in Taiga.展开更多
My alarm goes off at 4 am.I've been feeling sick all night,not sure if the culprit is the water I took or the awful tasting camp food I fed myself for dinner last night.All I know is that this morning,I feel terri...My alarm goes off at 4 am.I've been feeling sick all night,not sure if the culprit is the water I took or the awful tasting camp food I fed myself for dinner last night.All I know is that this morning,I feel terrible,and I will continue to feel terrible because I am completely out of water—the clean water I saved in my bottle from yesterday is now frozen,as is everything I left out last night,including my shoes.展开更多
It seems as though there are Chongqing hotpot restaurants in every Chinese city, even though most people in northern and coastal regions have not been big consumers of chili peppers in the past. Many people believe th...It seems as though there are Chongqing hotpot restaurants in every Chinese city, even though most people in northern and coastal regions have not been big consumers of chili peppers in the past. Many people believe the cuisine not only reflects the character of Chongqing's people but has also become a driving force of the local e conomy.展开更多
Second-harmonic generation in Nd3＋ ：SBN crystal with needle-like ferroelectric with aperiodic domain structures is investigated. Two pairs of second harmonic （SH） waves appearing in lines are observed in unpoled ...Second-harmonic generation in Nd3＋ ：SBN crystal with needle-like ferroelectric with aperiodic domain structures is investigated. Two pairs of second harmonic （SH） waves appearing in lines are observed in unpoled Nd3＋ ：SBN crystals with aperiodic needle-like domains. A pair of SH waves emit from the exit face, whose intensities are angle-dependent. The angular dependence is corresponding to the spatial frequency spectrum of the aperiodic domain structure. Another pair of SH waves emit from both the side surfaces, which are mainly the scattered SH waves by needle-like domain walls and obey the theory of Rayleigh scattering.展开更多
文摘森林是我们最重要的自然资源之一。在保护森林的过程中,原住民扮演的角色尤其重要.There's a first time for everything:the Paris Agreement on climate change recognized the intrinsic relationship between indigenous people and their environment Whether they're in Taiga.
文摘My alarm goes off at 4 am.I've been feeling sick all night,not sure if the culprit is the water I took or the awful tasting camp food I fed myself for dinner last night.All I know is that this morning,I feel terrible,and I will continue to feel terrible because I am completely out of water—the clean water I saved in my bottle from yesterday is now frozen,as is everything I left out last night,including my shoes.
文摘It seems as though there are Chongqing hotpot restaurants in every Chinese city, even though most people in northern and coastal regions have not been big consumers of chili peppers in the past. Many people believe the cuisine not only reflects the character of Chongqing's people but has also become a driving force of the local e conomy.
基金National Natural Science Foundation of China under Grant No 61675101
文摘Second-harmonic generation in Nd3＋ ：SBN crystal with needle-like ferroelectric with aperiodic domain structures is investigated. Two pairs of second harmonic （SH） waves appearing in lines are observed in unpoled Nd3＋ ：SBN crystals with aperiodic needle-like domains. A pair of SH waves emit from the exit face, whose intensities are angle-dependent. The angular dependence is corresponding to the spatial frequency spectrum of the aperiodic domain structure. Another pair of SH waves emit from both the side surfaces, which are mainly the scattered SH waves by needle-like domain walls and obey the theory of Rayleigh scattering.
