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Biomedical and Environmental Sciences 2023年第12期36卷 1177-1182页

作者： WANG Yu JIN Qiu Meng WANG Chao HE Gang li dong sheng MA Kai Yue School of Kinesiology and Health Capital University of Physical Education and SportsBeijing 100191China Hengshui College of Vocational Technology Hengshui 053000HebeiChina Sports&Medicine Integrative Innovation Center Capital University of Physical Education and SportsBeijing 100191China

Regular physical activity (PA) has numerous advantages in improving the physical and mental health of children and adolescents^([1]).However,the PA status quo for children and adolescents with intellectual disabilities (ID) is *** and adolescents with ID frequently exhibit sedentary behaviors because their physical,sensory,and/or cognitive impairments make it difficult to participate in sports and games with their peers^([2]).They have higher rates of mental illness,obesity,type 2diabetes,and other health problems than peers with typical development (TD).

关键词： impairment obesity sectional

Effect of Photoperiod Treatments on Dormancy Induction and Changes in Correlated Respiratory Rate of Nectarine Peach Bud

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Agricultural Sciences in China 2008年第12期7卷 1445-1450页

作者： li Jin GAO dong-sheng ZHAO Kai YU Qin XU Chen-shan State Key Laboratory of Crop Biology College of Horticulture Science and Engineering Shandong Agricultural University Tai＇an271018 P.R.China

The responses of dormancy induction to illumination and the characteristics of respiratory rate were studied with the nectarine peach bud in this article. The trial was conducted with nectarine （Prunus persica var. nectariana cv. Shuguang） and involved three treatments： a short day treatment （8 h）, a long day treatment （16 h）, and the normal condition as the control. The dormancy status was determined with the growth of shoot and the sprouting ability, and the respiratory rate was mensurated with oxygen electrode. Short day treatment could induce the growth stopping of peach shoots ahead, promote the development of dormancy, and induce buds into dormancy with 21 d previous to control. Long day treatment postponed the growth stopping and the induction and development of dormancy. The respiratory rate decreased according to the development of dormancy induction. The minimum respiratory rate appeared about 7 days after the start of dormancy induction. Bud respiratory rate increased during this period and then declined and remained at low level during dormancy period. Long day reduced buds respiratory rate slightly. Short day could induce dormancy obviously, and long day postponed dormancy induction. The changes of respiratory rate were correlated with the development of dormancy induction, and the bud respiratory rate was also affected by photoperiod.

关键词： peach dormancy induction photoperiod respiratory rate

Dynamic tracking and mobility analysis of single GLUT4 storage vesicle in live 3T3-L1 cells

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Cell Research 2004年第6期14卷 480-486页

作者： Chen Hong li, li BAI, dong dong li, sheng XIA, Tao XU Institute of Biophysics and Biochemistry, Huazhong University of Science and Technology, Wuhan 430074, China National Key Laboratory of Biomacromoleculars, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China Institute of Biophysics and Biochemistry Huazhong University of Science and Technology Wuhan 430074 China

Glucose transporter 4 (GLUT4) is responsible for insulin-stimulated glucose transporting into the insulin-sensitive fat and muscle cells. The dynamics of GLUT4 storage vesicles (GSVs) remains to be explored and it is unclear how GSVs are arranged based on their mobility. We examined this issue in 3T3-L1 cells via investigating the three-dimensional mobility of single GSV labeled with EGFP-fused GLUT4. A thin layer of cytosol right adjacent to the plasma membrane was illuminated and successively imaged at 5 Hz under a total internal reflection fluorescence microscope with a penetration depth of 136 nm. Employing single particle tracking, the three-dimensional subpixel displacement of single GSV was tracked at a spatial precision of 22 nm. Both the mean square displacement and the diffusion coefficient were calculated for each vesicle. Tracking results revealed that vesicles moved as if restricted within a cage that has a mean radius of 160 nm, suggesting the presence of some intracellular tethering matrix

关键词： Insulin GLUT4 GLUT4 storage vesicle (GSV) 3T3-L1 total internal reflection fluorescence microscopy single particle tracking.

N Accumulation and Translocation in Four Japonica Rice Cultivars at Different N Rates

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Pedosphere 2007年第6期17卷 792-800页

作者： ZHANG Yao-Hong FAN Jian-Bo ZHANG Ya-li WANG dong-sheng HUANG Qi-Wei SHEN Qi-Rong College of Resources and Environmental Sciences Nanjing Agricultural University Nanjing 210095 （China）

Developing high-yielding rice(Oryza sativa L.)cultivars depends on having a better understanding of nitrogen(N) accumulation and translocation to the ear during the reproductive *** experiments were carried out to evaluate the genetic variation for N accumulation and translocation in different Japonica rice cultivars at different N rates and to identify any relationship to grain yield in southeast *** Japonica cultivars with similar agronomic characteristics were grown at two experimental sites in 2004 with three N rates of 0,60,and 180 kg N ha^(-1).Dry weights and N contents of rice plants were measured at tillering,initiation,anthesis,and *** yields exhibited significant differences (Plication *** N rates improved N uptake at anthesis and maturity in all four cultivars(Plinear to N uptake at anthesis(r^2=0.78^(**))and N translocation(r^2=0.67^(**)).Thus,cultivars with a high N uptake at anthesis,low residual N in the straw at maturity,and appropriate low N fertilizer supply in southeast China should efficiently increase N-recovery rate while maintaining grain yield and soil fertility.

关键词： rain yield Japonica rice cultivar N accumulation N application rate N translocation

Experiment study on water-rock interaction about gold activation and migration in different solutions

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Journal of Central South University of Technology 2001年第2期8卷 105-107页

作者： DAI Ta gen, GU li, QIU dong sheng, XIE Wen bing (College of Resources, Environment and Civil Engineering, Central South University, Changsha 410083, China) 1. College of Resources Environment and Civil Engineering Central South University 410083 Changsha China

The interactions on gold active and migratory quantities and rates between tuffaceous slate and solu tions with different compositions were experimentally studied at 200 ℃, 20 MPa, in a high pressure apparatus. After reaction, tuffaceous slate became light colored and soft, and its mass density reduced. The amount of gold extracted from tuffaceous slate ranges widely, from 0 027 to 0 234 μg/g. Chlorine solution may activate appreciable amount of gold, and the gold migratory rate is high enough, from 50 70% to 92 30%, which reveals that sulphur and chlorine work together in solutions to accelerate gold activation and migration, and to realize gold mineralization in favorable places.

关键词： water rock interaction activation migration chlorine sulphur gold

Study on Lewis acid promoted condensation of allylalkoxysilanes with (-)-menthyl glyoxylate

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Chinese Journal of Chemistry 1994年第5期12卷 440-448页

作者： CHEN, Yong-Jun HUANG, liang WANG, dong li, Ji-sheng Institute of Chemistry, Chinese Academy of Science, Beijing 100080, China Institute of Chemistry Chinese Academy of Science Beijing 100080 China

Allylalkoxydimethylsilanes (2) condense with (-)-menthyl glyoxylate (3) in the presence of Lewis acid to give optically active menthyl 2-hydroxy-4-pentenoate (7) with optical purity of 31-42%. Factors affecting the yi... 详细信息

关键词： Chiral glyoxylate allylalkoxysilane Lewis acid chelation asymmetric reaction.

Synthesis and characterization of adducts of p-azidostyrene derivatives to fullerene C_(60)

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Chinese Journal of Chemistry 1995年第6期13卷 525-531页

作者： li,Ji-sheng dong,Guo-Xiao FENG,Jun JI,Gai-JiaoInstitute of Chemistry,Chinese Academy of Sciences,Beijing 100080,China Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China

Fullerene C60 reacted with p-azidostyrene derivatives in refluxing chlorobenzene,yielding monoadducts 2a and 2d as well as diadduct 2c with aziridine structure at 6/6-ring *** results showed that the addition of the second azide to the monoadduct was *** diadduct,of Cs symmetry in C60 moiety,was unstable by opening to be 1,6-imido[10]annulene structure.

关键词： Pullerene azkidine regioselective adduct azide

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CNP1500堆芯燃料管理设计

核动力工程 2006年第4期27卷 1-4页

作者：李冬生中国核动力研究设计院核反应堆系统设计技术国家重点实验室成都610041

CNP1500是一个轻水慢化和冷却的四环路压水堆核电站。反应堆堆芯由205个AFA-3GXL燃料组件组成；堆芯冷态活性段高度为426．7cm；等效直径为347．0cm。反应堆热功率输出为4250MW,平均线功率密度为179．5W/cm。计算结果表明,平衡循环堆芯... 详细信息

CNP1500是一个轻水慢化和冷却的四环路压水堆核电站。反应堆堆芯由205个AFA-3GXL燃料组件组成；堆芯冷态活性段高度为426．7cm；等效直径为347．0cm。反应堆热功率输出为4250MW,平均线功率密度为179．5W/cm。计算结果表明,平衡循环堆芯的循环长度为470等效满功率天；各循环堆芯所有状态下的慢化剂温度系数均为负值；各循环热态满功率、无控制棒、平衡氙状态下的核焓升因子氏FQ(ΔH)都低于限值；最大卸料组件燃耗小于55000MW·d/t(U)；各循环寿期末停堆裕量满足设计准则；低泄漏堆芯装载降低了反应堆压力容器的辐照损伤,有利于延长压力容器的使用寿命。本文介绍了四环路压水堆核电站堆芯燃料管理设计方案及主要计算结果。

关键词：燃料管理慢化剂温度系数功率分布停堆裕量

基于态势感知一致性的UAV集群分布式协同性能分析

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宇航学报 2018年第10期39卷 1148-1156页

作者：高杨李东生国防科技大学电子对抗学院合肥230037

针对现有无人机集群分布式协同方法没有细致考虑态势感知过程,忽略了对抗环境下态势信息的不确定性对集群协同的影响,对协同性能缺乏量化分析等问题,提出基于态势感知一致性的无人机集群分布式协同方法,并分析协同性能。从集群协同作战... 详细信息

针对现有无人机集群分布式协同方法没有细致考虑态势感知过程,忽略了对抗环境下态势信息的不确定性对集群协同的影响,对协同性能缺乏量化分析等问题,提出基于态势感知一致性的无人机集群分布式协同方法,并分析协同性能。从集群协同作战角度分析协同方法的实质,考虑态势信息不确定性,给出集群态势感知一致性分析,建立态势觉察一致性、态势理解一致性等概念,并设计协同方法;建立协同时间、协同信息量等指标,分析指标特性,量化分析协同性能;在给定的仿真场景下,对比分析各协同方法性能。结果表明,所提方法协同性能较好,更切合对抗环境,对集群协同作战研究有一定的积极意义。

关键词：无人机集群分布式协同态势感知态势感知一致性协同性能

一体化先进压水堆小型核电站堆芯燃料管理设计

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核动力工程 2008年第2期29卷 39-42页

作者：彭钢李冬生中国核动力研究设计院核反应堆系统设计技术国家重点实验室成都610041

采用SCIENCE核程序包进行装载方案的设计计算,确定了满足设计准则的各个过渡循环至平衡循环的堆芯。选择合理的平衡循环堆芯燃料的富集度、换料燃料组件数以及各循环的装载和换料方式,使平衡循环达到预定的2 a换料循环长度。堆芯采用低... 详细信息

采用SCIENCE核程序包进行装载方案的设计计算,确定了满足设计准则的各个过渡循环至平衡循环的堆芯。选择合理的平衡循环堆芯燃料的富集度、换料燃料组件数以及各循环的装载和换料方式,使平衡循环达到预定的2 a换料循环长度。堆芯采用低泄漏"内-外"式布置,旧燃料组件布置于堆芯外区。第一循环堆芯,高富集度的组件置于堆芯外区,低富集度的组件排列在堆芯内区。第二循环堆芯装入44个富集度为4.95%的新燃料组件,同时卸出44个旧燃料组件,旧燃料组件布置于堆芯外区。第三循环开始到反应堆寿期内的所有堆芯,都只使用含0、12和20根载钆燃料棒的燃料组件。各循环燃料组件最大卸料燃耗满足设计准则要求。

关键词：一体化先进压水堆小型核电站堆芯燃料管理