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榫卯结构在毕业创作《羽化》中的运用

景德镇陶瓷 2024年第2期52卷 59-62页

作者：梁罗名柱邵长宗谢璇魏小豪景德镇陶瓷大学

榫卯结构,是在使用木材料进行艺术作品创作所使用的一种拼接技术,从而能解决木材料在体量上的局限性,又能将木材料进行拼接构成艺术作品。榫卯技术独特的构成感能满足该类型艺术创作者对于作品更多的审美需求,在不同的艺术创作者手中,... 详细信息

榫卯结构,是在使用木材料进行艺术作品创作所使用的一种拼接技术,从而能解决木材料在体量上的局限性,又能将木材料进行拼接构成艺术作品。榫卯技术独特的构成感能满足该类型艺术创作者对于作品更多的审美需求,在不同的艺术创作者手中,榫卯的使用方式的不同也会对作品产生不同的艺术语言,达到不同的艺术效果和情感,是对于木材料的特性的挖掘与开发,从而成为木材料艺术创作者对作品思想观念情绪表达上的表现和达到所需视觉艺术效果的技术手段。

关键词：榫卯结构木材料艺术作品连接方式

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桂西南蔗区甘蔗新品种筛选与评价

种子 2024年第1期43卷 92-95,101页

作者：秦昌鲜彭崇郭强闭德金唐利球马文清梁永检韦江璐广西南亚热带农业科学研究所/农业部龙州热带作物科学观测综合实验站广西龙州532415

对8个甘蔗新品种(系)的农艺性状进行综合评价,筛选出优良品种(系),为桂西南蔗区特别是龙州蔗区新品种的推广提供参考。以ROC22为对照,对7个甘蔗新品种(系)进行一年新植两年宿根田间比较试验,采用DTOPSIS法对其进行筛选与评价。结果表明... 详细信息

对8个甘蔗新品种(系)的农艺性状进行综合评价,筛选出优良品种(系),为桂西南蔗区特别是龙州蔗区新品种的推广提供参考。以ROC22为对照,对7个甘蔗新品种(系)进行一年新植两年宿根田间比较试验,采用DTOPSIS法对其进行筛选与评价。结果表明,各品种按照DTOPSIS分析结果Ci排序依次为:河糖11-157>桂糖10-1042、桂糖08-56>桂糖11-2320>桂糖09-439>ROC22>桂糖11-2119>桂糖10-417。甘蔗新品种河糖11-157和桂糖10-1042可在桂西南蔗区特别是龙州蔗区进行推广应用,桂糖08-56和桂糖09-439可作为优良新品种继续观察,桂糖11-2320、桂糖11-2119和桂糖10-417不建议在桂西南蔗区推广应用。

关键词： DTOPSIS法甘蔗新品种

采用多丝正比室读出的屏栅电离室能量分辨研究

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原子能科学技术 2024年第1期58卷 225-230页

作者：尹小豪魏向伦黄鑫杰邹海川邱天力何周波杨远胜李志杰李蒙马朋杨贺润鲁辰桂胡荣江段利敏中国科学院近代物理研究所甘肃兰州730000 中国科学院大学核科学与技术学院北京100049 兰州大学核科学与技术学院甘肃兰州730000

搭建了一个基于多丝正比室读出的屏栅电离室探测器,使其保留屏栅电离室屏蔽特性的同时具备雪崩放大功能,通过在探测器内部对原初电离信号进行预放大,以提高信噪比,改善探测器的能量分辨率。利用241Am源详细测试了探测器在不同气压、沉... 详细信息

搭建了一个基于多丝正比室读出的屏栅电离室探测器,使其保留屏栅电离室屏蔽特性的同时具备雪崩放大功能,通过在探测器内部对原初电离信号进行预放大,以提高信噪比,改善探测器的能量分辨率。利用241Am源详细测试了探测器在不同气压、沉积能量、阳极丝径时能量分辨率及增益随阳极电压的变化关系。探测器最佳能量分辨对应的工作电压与入射粒子在漂移区中沉积的能量有关,能量沉积越小,对应的最佳工作电压越高,探测器的增益越大。对于5.486 MeV的241Am α粒子源的能量分辨率可达1.45%。

关键词：雪崩放大信噪比能量分辨率空间电荷效应

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儿童器官获取组织和器官移植管理体系的探索与实践

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中华移植杂志（电子版） 2024年第2期18卷 93-97页

作者：裘妃高志刚汪伟王晓豪杨子浩陈青江盛美君赵杭燕浙江大学医学院附属儿童医院0PO办公室国家儿童健康与疾病临床医学研究中心杭州310052

险随着我国器官移植技术的快速发展、国家相关法律法规的不断完善以及公民逝世后器官捐献意愿的提升,器官获取组织(OPO)的重要性愈加凸显。儿童器官捐献和获取较成年人面临更为复杂的管理与应用情境,受到技术、伦理和文化等一系列因素... 详细信息

险随着我国器官移植技术的快速发展、国家相关法律法规的不断完善以及公民逝世后器官捐献意愿的提升,器官获取组织(OPO)的重要性愈加凸显。儿童器官捐献和获取较成年人面临更为复杂的管理与应用情境,受到技术、伦理和文化等一系列因素的制约,因此在捐献比例和转化率上远低于成年人,然而等待器官移植的患儿比例却逐年增加。浙江大学医学院附属儿童医院自2018年开展院内0P0管理体系的探索与实践,至2022年12月31日潜在捐献者总数约70例,其中完成器官获取的捐献者数量为29例,器官捐献转化率为41.43%。在组织架构建设、专业人才培养及工作流程探索等方面均取得一定经验和效果,为未来进一步提升与完善儿童器官捐献管理工作提供借鉴。

关键词：器官获取组织器官捐献器官移植儿童管理实践

不同激素和基本培养基对菠萝组培苗生长的影响

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热带农业科技 2024年第3期47卷 6-10页

作者：罗晟昇廖韦卫韦巧云唐利球覃潇敏徐健广西南亚热带农业科学研究所广西龙州532400

为了解激素和基本培养基对菠萝组培苗生长的影响,试验用不同的分裂素和生长素及基本培养基对菠萝组培苗进行培养。结果表明:细胞分裂素6-BA能有效促进菠萝组培苗分蘖,但对株高及叶片、根的生长不利,浓度越高抑制越明显;KT不利于菠萝组... 详细信息

为了解激素和基本培养基对菠萝组培苗生长的影响,试验用不同的分裂素和生长素及基本培养基对菠萝组培苗进行培养。结果表明:细胞分裂素6-BA能有效促进菠萝组培苗分蘖,但对株高及叶片、根的生长不利,浓度越高抑制越明显;KT不利于菠萝组培苗的分裂,有利于植株和根系的生长,但浓度不宜过高。生长素主要作用是促进根系生长及壮苗,其中IBA在株高和根长方面比NAA优势明显,更适合用于生根培养。1/2 MS基本培养基中菠萝组培苗的长势弱于MS基本培养基,不适合用于菠萝组培苗的培养。

关键词：菠萝组织培养激素基本培养基

Kindlin-2 loss in condylar chondrocytes causes spontaneous osteoarthritic lesions in the temporomandibular joint in mice

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International Journal of Oral Science 2022年第3期14卷 371-380页

作者： Yumei Lai wei Zheng Minghao Qu Christopher C.Xiao Sheng Chen Qing Yao weiyuan Gong Chu Tao Qinnan Yan Peijun Zhang xiaohao Wu Guozhi Xiao Department of Orthopedic Surgery Rush University Medical CenterChicagoILUSA Department of Orthopaedic Center Xinjiang Production and Construction Corps HospitalUrumqiChina Department of Biochemistry School of MedicineSouthern University of Science and TechnologyGuangdong Provincial Key Laboratory of Cell Microenvironment and Disease ResearchShenzhen Key Laboratory of Cell MicroenvironmentShenzhenChina Department of Orthopedics Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina

The progressive destruction of condylar cartilage is a hallmark of the temporomandibular joint(TMJ) osteoarthritis(OA);however, its mechanism is incompletely understood. Here, we show that Kindlin-2, a key focal adhesion protein, is strongly detected in cells of mandibular condylar cartilage in mice. We find that genetic ablation of Kindlin-2 in aggrecan-expressing condylar chondrocytes induces multiple spontaneous osteoarthritic lesions, including progressive cartilage loss and deformation, surface fissures, and ectopic cartilage and bone formation in TMJ. Kindlin-2 loss significantly downregulates the expression of aggrecan, Col2a1 and Proteoglycan 4(Prg4), all anabolic extracellular matrix proteins, and promotes catabolic metabolism in TMJ cartilage by inducing expression of Runx2and Mmp13 in condylar chondrocytes. Kindlin-2 loss decreases TMJ chondrocyte proliferation in condylar cartilages. Furthermore,Kindlin-2 loss promotes the release of cytochrome c as well as caspase 3 activation, and accelerates chondrocyte apoptosis in vitro and TMJ. Collectively, these findings reveal a crucial role of Kindlin-2 in condylar chondrocytes to maintain TMJ homeostasis.

关键词： Kindlin-2 loss in condylar chondrocytes causes spontaneous osteoarthritic lesions in the temporomandibular joint in mice TMJ

Berberine and Prediabetes: A Clinical Observational Study

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Journal of Diabetes Mellitus 2020年第4期10卷 209-221页

作者： Li wang Hui Ge Guohong wei Longyun Pong liqiu Wu Huijuan Ye Department of Healthcare The First Affiliated Hospital Sun Yat-sen University Guangzhou China Department of Endocrinology The First Affiliated Hospital Sun Yat-sen University Guangzhou China Department of Cardiology The First Affiliated Hospital Sun Yat-sen University Guangzhou China

Objective: To observe the clinical efficacy and safety of berberine in treating patients with prediabetes. Methods: A total of 76 patients with prediabetes were enrolled, and at the end of a one-month run-in period, 70 patients were eligible to participate in the clinical trial and randomly assigned to two groups in a 1:1 ratio, namely a treatment group (n = 35) and a control group (n = 35). Members of the control group underwent lifestyle interventions, including dietary interventions and exercise prescriptions, while participants of the treatment group received both lifestyle interventions and oral administration of 300 mg berberine, three times daily for three months. Subsequently, the treatment group entered a washout period of two months, during which time the medication was stopped, and the lifestyle interventions continued. Following the washout period, the oral administration of berberine was resumed at the same dose and lasted for three months. Blood glucose parameters were evaluated after different treatment periods. Results: 1) Intra-group comparison: Following the first and the second treatment periods, the treatment group experienced a significant decrease in fasting plasma glucose (FPG), 2-hour PG (2hPG) based on oral glucose tolerance test (OGTT), HbA1c, and HOMA-IR (P Conclusion: Berberine is safe and effective in controlling blood glucose levels in patients with prediabetes and deserves to

关键词： Berberine Diet Exercise Prediabetes

Simulation of the effect of a magnetically insulated anode on a low-power cylindrical Hall thruster

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Plasma Science and Technology 2018年第3期20卷 156-162页

作者： Yongjie DING Hong LI Boyang JIA Peng LI liqiu wei Yu XU Wuji PENG Hezhi SUN Yong CAO Daren YU School of Energy Science and Engineering Harbin Institute of Technology Harbin 150001 People'sRepublic of China Harbin Institute of Technology (Shenzhen) Shenzhen 518055 People's Republic of China

The intersection point of the characteristic magnetic field line（CMFL） crossing the anode boundary with the discharge channel wall, and its influence on thruster performance and the energy and flux of ions bombarding the channel wall, have been studied numerically. The simulation results demonstrate that with the increase in distance from the crossover point of the CMFL with the channel wall to the bottom of the thruster channel, the ionization rate in the discharge channel gradually increases; meanwhile, the ion energy and ion current density bombarding the channel wall decreases. When the point of the CMFL with the channel wall is at the channel outlet, the thrust, specific impulse, and efficiency are at a maximum, while the ion energy and ion current density bombarding the channel wall are at a minimum. Therefore, to improve the performance and lifetime of the thruster, it is important to control the point of intersection of the CMFL with the channel wall.

关键词： magnetically insulated anode cylindrical Hall thruster performance

Simulation study on the influence of magnetic field in the near-anode region on anode power deposition of ATON-type Hall thruster

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Plasma Science and Technology 2020年第9期22卷 106-113页

作者： Hongbo SU Hong LI Yongjie DING liqiu wei Xu ZHANG Chaoying ZHOU Daren YU Lab of Plasma Propulsion Harbin Institute of Technology(HIT)Harbin 150001People's Republic of China Lab of Electric Drive&Propulsion Technology Harbin Institute of Technology(HIT)Harbin 150001People’s Republic of China Institute of Telecommunication Satellite China Academy of Space TechnologyBeijing 100094People's Republic of China School of Mechanical and Electrical Automation Harbin Institute of Technology(HIT)Shenzhen 518055People’s Republic of China

The highest deposition of power and temperature is always near the cusp of the ATON-type Hall *** shows that when there are electrons gathering at the cusp,the distribution of heat load will be uniform,which will potentially damage the ***,we optimize the magnetic field near the *** changed the magnetic field characteristics in the near-anode region with an additional magnetic screen,and performed numerical simulation with particle-incell *** simulation results show that the magnetic field of the thruster with the additional magnetic screen can alleviate the over-concentration of power deposition on the anode and reduce the power deposition in the anode by 20%,while ensuring that the overall magnetic field characteristics do not change significantly.

关键词： Hall thruster magnetic field near-anode power deposition