To explore the correlation between ancestor temple sacrifice culture and clan etiquettes in traditional settlements of Jiangxi Province, this paper analyzed origination and development of ancestor temple, focused on t...To explore the correlation between ancestor temple sacrifice culture and clan etiquettes in traditional settlements of Jiangxi Province, this paper analyzed origination and development of ancestor temple, focused on the patriarchal thought that respects ancestors and unifies the clan, the relationship between clan power and political power, sacrifice and patriarchy. The research found that the plain clan etiquettes were significant for unifying the clansmen, inheriting historical context, and stabilizing primarylevel organizations in rural areas.展开更多
The T2/RNase gene family is widespread in eukaryotes,and particular members of this family play critical roles in the gametophytic self-incompatibility(GSI) system in plants.Wild diploid strawberry(Fragaria)species ha...The T2/RNase gene family is widespread in eukaryotes,and particular members of this family play critical roles in the gametophytic self-incompatibility(GSI) system in plants.Wild diploid strawberry(Fragaria)species have diversified their sexual systems via self-incompatible and self-compatible traits,yet how these traits evolved in Fragaria remains elusive.By integrating the published and de novo assembled genomes and the newly generated RNA-seq data,members of the RNase T2 gene family were systematically identified in six Fragaria species,including three self-incompatible species(Fragaria nipponica,Fragaria nubicola,and Fragaria viridis) and three self-compatible species(Fragaria nilgerrensis,Fragaria vesca,and Fragaria iinumae).In total,115 RNase T2 genes were identified in the six Fragaria genomes and can be classified into three classes(Ⅰ-Ⅲ) according to phylogenetic analysis.The identified RNase T2 genes could be divided into 22 homologous gene sets according to amino acid sequence similarity and phylogenetic and syntenic relationships.We found that extensive gene loss and pseudogenization coupled with small-scale duplications mainly accounted for variations in the RNase T2 gene numbers in Fragaria.Multiple copies of homologous genes were mainly generated from tandem and segmental duplication events.Furthermore,we newly identified five S-RNase genes in three self-incompatible Fragaria genomes,including two in F.nipponica,two in F.viridis,and one in F.nubicola,which fit for typical features of a pistil determinant,including highly pistil-specific expression,highly polymorphic proteins and alkaline isoelectric point(pI),while no S-RNase genes were found in all three selfcompatible Fragaria species.Surprisingly,these T2/S-RNase genes contain at least one large intron(>10 kb).This study revealed that the rapid evolution of T2/S-RNase genes within the Fragaria genus could be associated with its sexual mode,and repeated evolution of the self-compatible traits in Fragaria was convergent via losses of S-RNase.展开更多
The region coverage control problem of multiple stratospheric airships system is firstly addressed in this paper.Towards it,we propose a two-layer control framework with the artificial potential field(APF)-based regio...The region coverage control problem of multiple stratospheric airships system is firstly addressed in this paper.Towards it,we propose a two-layer control framework with the artificial potential field(APF)-based region coverage control law and the adaptive tracking control law.The APF-based region coverage control law ensures the coverage task is achieved until every single stratospheric airship ends up performing station keeping where near the respective global minimum point,in which an innovative solution to the local minimum problem is put forward.The adaptive tracking control law is designed to realize motion control using tracking the desired velocity and angular velocity given by coverage control law,with the consideration of several practical control problems as unknown individual differences and external disturbances.To save resources,the combined self-/event-triggered mechanism designed therein significantly reduces the times of state information transmission and control law calculation.The effectiveness of the proposed control framework is verified through simulations.展开更多
The Sea Sacrifice Festival in Tianheng town, Qingdao, China starts from Ming dynasty and enjoys a history ofmore than 500 years. As the largest and most famous festival of offering sacrifice to the sea in China, it de...The Sea Sacrifice Festival in Tianheng town, Qingdao, China starts from Ming dynasty and enjoys a history ofmore than 500 years. As the largest and most famous festival of offering sacrifice to the sea in China, it developsfrom the traditional ritual performed by fishermen, who intended to pray for blessing and safety from the God ofthe Sea into a huge carnival attending by thousands of people to express their aspiration for a wonderful life andbright future. This day, the sea sacrifice festival has the new social values and cultural connotations due to thechange of life style, the rise of intangible cultural heritage protection activities, and the integration of many otherculture elements, such as Yanko, drum, and Peking opera performance.展开更多
The earliest known image of the binding of Isaac,known as the Akedah,is on a Torah shrine in a synagogue in Dura Europos,Syria dating before 244(fig.1).It shows a fully developed iconography of a young Isaac on the al...The earliest known image of the binding of Isaac,known as the Akedah,is on a Torah shrine in a synagogue in Dura Europos,Syria dating before 244(fig.1).It shows a fully developed iconography of a young Isaac on the altar with the burning wood,the ram by the tree,Abraham holding the knife,and the hand of God issuing from a cloud.Though the visual narrative is largely based on the account of the Akedah in Genesis 22,it also relies on details found in other Jewish literary sources that include the Talmud,Targum Onkelos,Targum Pseudo-Jonathan,commentary on Genesis by Rashi,Midrash account of Pirkei De Rabbi Eliezer,and Genesis Rabbah.This paper will present unexplored Jewish sources for the iconography of the Akedah/Sacrifice of Isaac in art of Late Antiquity.展开更多
Self-sacrificial template, which is freshly precipitated Ni(OH)2 colloid, is used to fabricate ultrafine core-shell nickel spheres. The size distribution, morphology, chemical and catalyzed properties of the synthesiz...Self-sacrificial template, which is freshly precipitated Ni(OH)2 colloid, is used to fabricate ultrafine core-shell nickel spheres. The size distribution, morphology, chemical and catalyzed properties of the synthesized spheres can be controlled by regulating the preparation conditions. The varying conditions are: initial nickel ion concentration, the pH value of the solution, the scouring agent and the anion in saline solution. With very little Ni2+ concentration in the solution, the hollow spheres are formed. The higher the alkali content, the more the ultrafine colloidal cores.展开更多
基金Sponsored by Jiangxi Provincial Program of Art and Science 2015(YG2015033)
文摘To explore the correlation between ancestor temple sacrifice culture and clan etiquettes in traditional settlements of Jiangxi Province, this paper analyzed origination and development of ancestor temple, focused on the patriarchal thought that respects ancestors and unifies the clan, the relationship between clan power and political power, sacrifice and patriarchy. The research found that the plain clan etiquettes were significant for unifying the clansmen, inheriting historical context, and stabilizing primarylevel organizations in rural areas.
基金financially supported by the National Key Research and Development Program of China (2018YFD1000107)the open research project of the "Cross-Cooperative Team" of the Germplasm Bank of Wild Species to A.Z.
文摘The T2/RNase gene family is widespread in eukaryotes,and particular members of this family play critical roles in the gametophytic self-incompatibility(GSI) system in plants.Wild diploid strawberry(Fragaria)species have diversified their sexual systems via self-incompatible and self-compatible traits,yet how these traits evolved in Fragaria remains elusive.By integrating the published and de novo assembled genomes and the newly generated RNA-seq data,members of the RNase T2 gene family were systematically identified in six Fragaria species,including three self-incompatible species(Fragaria nipponica,Fragaria nubicola,and Fragaria viridis) and three self-compatible species(Fragaria nilgerrensis,Fragaria vesca,and Fragaria iinumae).In total,115 RNase T2 genes were identified in the six Fragaria genomes and can be classified into three classes(Ⅰ-Ⅲ) according to phylogenetic analysis.The identified RNase T2 genes could be divided into 22 homologous gene sets according to amino acid sequence similarity and phylogenetic and syntenic relationships.We found that extensive gene loss and pseudogenization coupled with small-scale duplications mainly accounted for variations in the RNase T2 gene numbers in Fragaria.Multiple copies of homologous genes were mainly generated from tandem and segmental duplication events.Furthermore,we newly identified five S-RNase genes in three self-incompatible Fragaria genomes,including two in F.nipponica,two in F.viridis,and one in F.nubicola,which fit for typical features of a pistil determinant,including highly pistil-specific expression,highly polymorphic proteins and alkaline isoelectric point(pI),while no S-RNase genes were found in all three selfcompatible Fragaria species.Surprisingly,these T2/S-RNase genes contain at least one large intron(>10 kb).This study revealed that the rapid evolution of T2/S-RNase genes within the Fragaria genus could be associated with its sexual mode,and repeated evolution of the self-compatible traits in Fragaria was convergent via losses of S-RNase.
基金supported by the Postdoctoral Science Foundation of China(Grant No.2020TQ0028)the National Natural Science Foundation of China(No.62173016)Beijing Natural Science Foundation,PRChina(No.4202038)。
文摘The region coverage control problem of multiple stratospheric airships system is firstly addressed in this paper.Towards it,we propose a two-layer control framework with the artificial potential field(APF)-based region coverage control law and the adaptive tracking control law.The APF-based region coverage control law ensures the coverage task is achieved until every single stratospheric airship ends up performing station keeping where near the respective global minimum point,in which an innovative solution to the local minimum problem is put forward.The adaptive tracking control law is designed to realize motion control using tracking the desired velocity and angular velocity given by coverage control law,with the consideration of several practical control problems as unknown individual differences and external disturbances.To save resources,the combined self-/event-triggered mechanism designed therein significantly reduces the times of state information transmission and control law calculation.The effectiveness of the proposed control framework is verified through simulations.
文摘The Sea Sacrifice Festival in Tianheng town, Qingdao, China starts from Ming dynasty and enjoys a history ofmore than 500 years. As the largest and most famous festival of offering sacrifice to the sea in China, it developsfrom the traditional ritual performed by fishermen, who intended to pray for blessing and safety from the God ofthe Sea into a huge carnival attending by thousands of people to express their aspiration for a wonderful life andbright future. This day, the sea sacrifice festival has the new social values and cultural connotations due to thechange of life style, the rise of intangible cultural heritage protection activities, and the integration of many otherculture elements, such as Yanko, drum, and Peking opera performance.
文摘The earliest known image of the binding of Isaac,known as the Akedah,is on a Torah shrine in a synagogue in Dura Europos,Syria dating before 244(fig.1).It shows a fully developed iconography of a young Isaac on the altar with the burning wood,the ram by the tree,Abraham holding the knife,and the hand of God issuing from a cloud.Though the visual narrative is largely based on the account of the Akedah in Genesis 22,it also relies on details found in other Jewish literary sources that include the Talmud,Targum Onkelos,Targum Pseudo-Jonathan,commentary on Genesis by Rashi,Midrash account of Pirkei De Rabbi Eliezer,and Genesis Rabbah.This paper will present unexplored Jewish sources for the iconography of the Akedah/Sacrifice of Isaac in art of Late Antiquity.
基金Project(50474004) supported by the National Natural Science Foundation of China Projects(0452nm046 05nm05004) supported by the Nano Special Fund of Shanghai Science and Technology Committee, China
文摘Self-sacrificial template, which is freshly precipitated Ni(OH)2 colloid, is used to fabricate ultrafine core-shell nickel spheres. The size distribution, morphology, chemical and catalyzed properties of the synthesized spheres can be controlled by regulating the preparation conditions. The varying conditions are: initial nickel ion concentration, the pH value of the solution, the scouring agent and the anion in saline solution. With very little Ni2+ concentration in the solution, the hollow spheres are formed. The higher the alkali content, the more the ultrafine colloidal cores.