The mechanism for investment, utilization, and management of devices and equipment in universities is different from that of enterprises, because the devices and equipment inuniversities are rarely used for profit. It...The mechanism for investment, utilization, and management of devices and equipment in universities is different from that of enterprises, because the devices and equipment inuniversities are rarely used for profit. It is necessary to establish a new mode for the management of university-owned equipment. Such a mode consists of both technical management and economic management. To this end, the utilization of devices and equipment in the First Military Medical University is investigated qualitatively and quantitatively. The criterion-integrated index for the utilization of equipment is proposed for the first time. By using this criterion, together with such criteria as 'quality index', 'idleness index', and 'average usage index' the utilization and management of each class of equipment are described quantitatively.展开更多
Diabetic peripheral neuropathy（DPN）is one of the most common and intractable complications of diabetes mellitus.Its irritating symptoms,such as paresthesia,hyperalgesia and allodynia,can be causes of insomnia and de...Diabetic peripheral neuropathy（DPN）is one of the most common and intractable complications of diabetes mellitus.Its irritating symptoms,such as paresthesia,hyperalgesia and allodynia,can be causes of insomnia and depression;whereas its progression to more advanced stages can result in serious consequences,such as lower limb amputations and lethal arrhythmias.展开更多
Narrow genetic background is a key limiting factor in breeding stable high-yielding rice. The introduction and utilization of international rice core germplasm is an important way to increase the genetic diversity of ...Narrow genetic background is a key limiting factor in breeding stable high-yielding rice. The introduction and utilization of international rice core germplasm is an important way to increase the genetic diversity of domestic rice varieties. We conducted a genome-wide association study on 5 panicle traits of 315 rice accessions introduced from the international rice micro-core germplasm bank. Based on the tests from Yangzhou of China and Arkansas of American, environment exhibited a significant impacts on panicle length and primary branch number, while grain length, grain width and grain length/width ratio were insensitive to environment changes. We discovered a total of 7, 5, 10, 8 and 6 chromosomal regions or single nucleotide polymorphism marker loci that were significantly associated with primary branch number, panicle length, grain length, grain width and grain length/width ratio, respectively. Among them, eleven regions were associated with grain shape and one region associated with primary branch number, showing the good consistence in two different environments. Significant linear correlation was discovered between the average trait value and the number of favorable alleles carried by the varieties in all associated loci. Among the associated loci, varieties in aromatic and tropical japonica sub-groups possessed most favorable alleles, while those in temperate japonica sub-group contained the least. The domestic varieties mainly harbored unfavorable alleles in six of the associated loci being detected. On the contrary, 15 varieties from 11 different countries harbored more favorable alleles （as many as 30 or more） than the others. Remarkably, all these 15 varieties belonged to the tropical japonica sub-group. In conclusion, our study demonstrates that varieties in the tropical japonica sub-group had high potentials for breeding stable high-yielding rice. Based on this discovery, we proposed a new approach for improving the panicle traits of domestic rice by using tropical japonica varieties.展开更多
The utilization efficiency(UE)of ozone plays a decisive role in the operating cost of wastewater ozonation.However,it remains obscure which engineering factors(including reactor design parameters and operating conditi...The utilization efficiency(UE)of ozone plays a decisive role in the operating cost of wastewater ozonation.However,it remains obscure which engineering factors(including reactor design parameters and operating conditions)actually govern the UE of ozone,especially during practical wastewater treatment and in scaled-up reactors.Herein,we proposed the definitions of generalized UE(GUE)and narrowly-defined UE(NUE)with emphasis on the overall ozone consumption and the specific utilization of ozone in chemical oxygen demand removal,respectively,and thereby methodically evaluated the effects of various engineering factors on GUE and NUE of ozone during wastewater ozonation in bubble column reactors from bench to pilot scales.Single factor analysis shows that increasing superficial gas velocity(U_(sg),i.e.,normalized gas flow rate)significantly inhibits both GUE and NUE,while the increase of mass transfer height(h)and column diameter promotes GUE,whereas it has no significant effect on NUE.Increasing gaseous ozone concentration exhibits a negligible impact on GUE but an adverse influence on NUE.Furthermore,the joint effects of every two factors on GUE and NUE were elucidated through response surface methodology analysis,wherein GUE was found to be effectively modulated via adjusting h and U_(sg) under a binary restriction condition of h<1875 U_(sg).More importantly,a series of multi-factor regression models were successfully established to predict the NUE of ozone at bench scale and for GUE across bench and pilot scales,respectively.This study is of techno-economic significance in promoting ozone utilization for efficient wastewater treatment via illuminating the rational design of the bubble column reactor and operating conditions.展开更多
文摘The mechanism for investment, utilization, and management of devices and equipment in universities is different from that of enterprises, because the devices and equipment inuniversities are rarely used for profit. It is necessary to establish a new mode for the management of university-owned equipment. Such a mode consists of both technical management and economic management. To this end, the utilization of devices and equipment in the First Military Medical University is investigated qualitatively and quantitatively. The criterion-integrated index for the utilization of equipment is proposed for the first time. By using this criterion, together with such criteria as 'quality index', 'idleness index', and 'average usage index' the utilization and management of each class of equipment are described quantitatively.
基金supported by a Grant-in-aid for Scientific Research from the Ministry of Education,Science,Sports and Culture of Japan(grant number:25430056)
文摘Diabetic peripheral neuropathy（DPN）is one of the most common and intractable complications of diabetes mellitus.Its irritating symptoms,such as paresthesia,hyperalgesia and allodynia,can be causes of insomnia and depression;whereas its progression to more advanced stages can result in serious consequences,such as lower limb amputations and lethal arrhythmias.
基金supported by Jiangsu Natural Science Fund, China (Grant No.BK20131224)Agricultural Prospective Fund from Yangzhou, China (Grant No.YZ2014168)the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions
文摘Narrow genetic background is a key limiting factor in breeding stable high-yielding rice. The introduction and utilization of international rice core germplasm is an important way to increase the genetic diversity of domestic rice varieties. We conducted a genome-wide association study on 5 panicle traits of 315 rice accessions introduced from the international rice micro-core germplasm bank. Based on the tests from Yangzhou of China and Arkansas of American, environment exhibited a significant impacts on panicle length and primary branch number, while grain length, grain width and grain length/width ratio were insensitive to environment changes. We discovered a total of 7, 5, 10, 8 and 6 chromosomal regions or single nucleotide polymorphism marker loci that were significantly associated with primary branch number, panicle length, grain length, grain width and grain length/width ratio, respectively. Among them, eleven regions were associated with grain shape and one region associated with primary branch number, showing the good consistence in two different environments. Significant linear correlation was discovered between the average trait value and the number of favorable alleles carried by the varieties in all associated loci. Among the associated loci, varieties in aromatic and tropical japonica sub-groups possessed most favorable alleles, while those in temperate japonica sub-group contained the least. The domestic varieties mainly harbored unfavorable alleles in six of the associated loci being detected. On the contrary, 15 varieties from 11 different countries harbored more favorable alleles （as many as 30 or more） than the others. Remarkably, all these 15 varieties belonged to the tropical japonica sub-group. In conclusion, our study demonstrates that varieties in the tropical japonica sub-group had high potentials for breeding stable high-yielding rice. Based on this discovery, we proposed a new approach for improving the panicle traits of domestic rice by using tropical japonica varieties.
基金supported by the National Natural Science Foundation of China(Grant Nos.22222603,51978326)。
文摘The utilization efficiency(UE)of ozone plays a decisive role in the operating cost of wastewater ozonation.However,it remains obscure which engineering factors(including reactor design parameters and operating conditions)actually govern the UE of ozone,especially during practical wastewater treatment and in scaled-up reactors.Herein,we proposed the definitions of generalized UE(GUE)and narrowly-defined UE(NUE)with emphasis on the overall ozone consumption and the specific utilization of ozone in chemical oxygen demand removal,respectively,and thereby methodically evaluated the effects of various engineering factors on GUE and NUE of ozone during wastewater ozonation in bubble column reactors from bench to pilot scales.Single factor analysis shows that increasing superficial gas velocity(U_(sg),i.e.,normalized gas flow rate)significantly inhibits both GUE and NUE,while the increase of mass transfer height(h)and column diameter promotes GUE,whereas it has no significant effect on NUE.Increasing gaseous ozone concentration exhibits a negligible impact on GUE but an adverse influence on NUE.Furthermore,the joint effects of every two factors on GUE and NUE were elucidated through response surface methodology analysis,wherein GUE was found to be effectively modulated via adjusting h and U_(sg) under a binary restriction condition of h<1875 U_(sg).More importantly,a series of multi-factor regression models were successfully established to predict the NUE of ozone at bench scale and for GUE across bench and pilot scales,respectively.This study is of techno-economic significance in promoting ozone utilization for efficient wastewater treatment via illuminating the rational design of the bubble column reactor and operating conditions.
