Based on the historical opportunities and great challenges of water resources and hydropower resources development and utilization in Ya’an city of sichuan province, together with the public experiment teaching platf...
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Based on the historical opportunities and great challenges of water resources and hydropower resources development and utilization in Ya’an city of sichuan province, together with the public experiment teaching platform, practical teaching base, practical teaching management and quality control mode, this paper combined the local characteristics and water conservancy features of the Minjiang River basin, especially those of the seven counties and one district in Ya’an, constructed and implemented the practical teaching system of agricultural water conservancy engineering.
作者:
周康巍杨建华彭隆才Department of Physics
Sichuan University Chengdu 610064 China International Centre for Materials Physics
Chinese Academy of Sciences Shenyang 110015 ChinaDepartment of Physics Chengdu University of Science and Technology Chengdu 610065 ChinaTeaching and Research Section of Physics Beijing Agricultural Engineering University Beijing 100083 China
The problem of how to give a unified interpretation for the electron paramagntic res-onance(EPR) parameters (the zero-field splitting parameter a and the g-tensor) and the op-tical spectrum of a cubic d^5 complex had ...
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The problem of how to give a unified interpretation for the electron paramagntic res-onance(EPR) parameters (the zero-field splitting parameter a and the g-tensor) and the op-tical spectrum of a cubic d^5 complex had long been open since it was put forward by VanVleck and Penny in 1934. In the 1990s, two different methods for the unified calculationof the parameter a and spectrum of a cubic d^5 complex were proposed respectively byKang and Zhou et al, respectively. However, they did not deal with how to
Eleocharis vivipara,an amphibious sedge in the Cyperaceae family,has several remarkable properties,most notably its alternate use of C_(3)photosynthesis underwater and C_(4)photosynthesis on ***,the absence of genomic...
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Eleocharis vivipara,an amphibious sedge in the Cyperaceae family,has several remarkable properties,most notably its alternate use of C_(3)photosynthesis underwater and C_(4)photosynthesis on ***,the absence of genomic data has hindered its utility for evolutionary and genetic ***,we present a high-quality genome for ***,representing the first chromosome-level genome for the Eleocharis genus,with an approximate size of 965.22 Mb mainly distributed across 10 *** Hi–C pattern,chromosome clustering results,and one-to-one genome synteny across two subgroups indicates a tetraploid structure with chromosome count 2n=4x=*** analysis suggests that *** diverged from Cyperus esculentus approximately 32.96million years ago(Mya),and underwent a wholegenome duplication(WGD)about 3.5 *** fusion and fission events were identified between the chromosomes of *** and its close *** demonstrate that *** has holocentromeres,a chromosomal feature which can maintain the stability of such chromosomal *** transplantation and cross-section studies showed its terrestrial culms developed C_(4)Kranz anatomy with increased number of chloroplasts in the bundle sheath(BS)*** expression and weighted gene co-expression network analysis(WGCNA)showed overall elevated expression of core genes associated with the C_(4)pathway,and significant enrichment of genes related to modified culm anatomy and photosynthesis *** found evidence of mixed nicotinamide adenine dinucleotide-malic enzyme and phosphoenolpyruvate carboxykinase type C_(4)photosynthesis in ***,and hypothesize that the evolution of C_(4)photosynthesis predates the WGD *** mixed type is dominated by subgenome A and supplemented by subgenome ***,our findings not only shed light on the evolution of *** and karyotype within the Cyperaceae family,but also provide valuable insights into the t
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