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Hard tissue stability after guided bone regeneration: a comparison between digital titanium mesh and resorbable membrane

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International Journal of Oral Science 2021年第4期13卷 389-397页

作者： Songhang Li junyi zhao Yu Xie Taoran Tian Tianxu Zhang Xiaoxiao Cai State Key Laboratory of Oral Diseases&National Clinical Research Center for Oral Diseases&Department of Implant dentistry West China Hospital of StomatologySichuan UniversityChengduChina

Guided bone regeneration(GBR)uses resorbable and non-resorbable membranes as biological *** study compared the differences in hard tissue stability between GBR using evidence-based digital titanium mesh and resorbable collagen membranes during implant placement.A total of 40 patients(65 implant sites)were enrolled and divided into two groups:resorbable membrane and digital titanium mesh *** alveolar bone was analyzed at two-and three-dimensional levels using conebeam computed tomography and by reconstructing and superimposing the hard tissues at four time points:preoperatively,postoperatively,before second-stage surgery,and 1 year after *** use of digital titanium mesh showed less alveolar bone resorption in vertical and horizontal directions two-dimensionally before the second-stage surgery and 1 year after *** volumetric stability,the percentage of resorption after 6 months of healing with resorbable membrane coverage reached 37.5%.However,it was only 23.4%with titanium *** postoperative bone volume was greater at all labial sites with resorbable membrane than with digital titanium mesh,after substantial bone resorption within 1 year of loading,the labial bone thickness at the upper part of implants was thinner with resorbable membrane than with digital titanium ***,digital titanium meshes made according to ideal bone arch contour reduced soft tissue irritation,and the exposure rate was only 10%.Therefore,although both resorbable membrane and digital titanium mesh in GBR were able to successfully reconstruct the bone defect,digital titanium meshes were better at maintaining the hard tissue volume in the osteogenic space.

关键词： titanium stability mesh

Rapid velocity reduction and drift potential assessment of off-nozzle pesticide droplets

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Chinese Journal of Chemical Engineering 2022年第6期35卷 243-254页

作者： Shidong Xue Jingkun Han Xi Xi junyi zhao Zhong Lan Rongfu Wen Xuehu Ma Liaoning Key Laboratory of Clean Utilization of Chemical Resources Institute of Chemical EngineeringSchool of Chemical EngineeringDalian University of TechnologyDalian 116024China

The droplet velocity and diameter significantly affect both the spatial drift loss and the interfacial deposition behaviors, thus determining the ultimate utilization efficiency during pesticide *** the spatial velocity and diameter evolutions can reveal the mechanism of drift loss and guide to design regulation strategy. Here, we explored the spatial velocity distribution of droplets after leaving the nozzle by particle image velocimetry technology and particle tracking model, considering that the effect of nozzle configuration and the air velocity. It shows that all droplets decelerate rapidly with the velocity attenuation ratio ranging from 50% to 80% within the region of 200 mm below the *** spatial velocity evolution differences between droplets in crossflow are determined by the competition of vertical drag force and net gravity, and the drag force sharply increases as the droplet diameter decreases, especially for that smaller than 150 μm. Based on the spatial evolution differences of the droplet velocity and diameter, a functional adjuvant was added to the liquid for improving the diameter distribution. And the drift loss was significantly reduced due to the reduction of the proportion of easily drifting droplets.

关键词： Spray droplets Particle image velocimetry(PIV) Particle size distribution Multiphase flow Pesticide drift

Woman Sends Regards to Family and the Loess Plateau

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Women of China 1995年第6期 11-12,15页

作者： MA junyi zhao NING

WITH a population of ouer 8 million, the Hui nationality liue ouer the largest area of any other minority nationality in China. The Hui reside in the Ningxia Hui Autonomous Region, Gansu, Shaanxi, Guizhou, Henan, Qinghai, Yunnan, Hebei, and Shandong provinces, the Xinjiang Uygur Autonomous Region, and the Beijing and Tianjin *** origin of the Hui people can be traced back to the end of the seventh century, when Arabs and Persians often came to do trade in China along the ancient Silk Road. Some stayed on and started families. Their children have been traced to Guangzhou and Quanzhou. At the beginning of the 13th century, more Arabs, Persian and people from Central Asia came to China, where they married into the Han, the Uygur and the Mongolian nationalities. Gradually a new nationality—the Hui—was *** the founding of New China in 1949, the NingxJa Hui Autonomous Region was established. The industrial and agricultural output in the region in 1990 was 12 times that in 1957, when the autonomous region was not yet established. Now the Ningxia Hui Autonomous Region is one of China's four provinces (regions) with the fastest economic *** Hui people believe in Islam and are noted for their intimacy with each other, their ability to adapt to their enuironment and their strong sense of clan. The Hui have their own special customs, rites and eating *** famous people throughout Chinese history were of the Hui nationality, such as Zhamaluding, an astronomer who lived during the Yuan Dynasty (1271-1368), Zheng He, the famous navigator who lived during the same period, and Li Zhi, the famous thinker and man of letters of the Ming Dynasty (1368-1644). Today's celebrities of the Hui nationality are Ma Jian, the famous scholar on the Islamic religion, the Beijing opera artist Ma Lianliang, and Ma Yanhong, the gymnast who wins the world championships.

关键词： In Woman Sends Regards to Family and the Loess Plateau

Specific Properties of Air Flow Field Within the Grinding Zone

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武汉理工大学学报 2006年第S1期28卷 307-309页

作者： ZHENG junyi,JIANG Zhengfeng,zhao Liang (Electromechanical School ,Wuhan University of Technology ,Wuhan 430070,China.) Electromechanical School Wuhan University of Technology Wuhan 430070China

Air barrier of grinding means a boundary layer of air existing at the circumference of the rotating wheel,which hinders coolant from entry. This paper makes a research on air flow field of the grinding zone through experiments and numerical simulations,focusing on acquainting with the specific properties of the air flow field. Finite volume method is applied to analyze air flow field within grinding wheel in the course of numerical calculations. The test devices such as Hot-wire anemometer and Betz manometer are used during the experiments of testing the pressure and velocity within grinding zone. Results of experiments agree by and large with numerical results of calculations. The conclusions obtained in this paper,the distribution of wall pressure and the distribution of air flow velocity,are important and useful to navigate the delivery of coolant into the grinding zone. In conclusion,some recommendations are made for further study and practical applications in such field.

关键词： grinding air barrier coolant

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关联性治理:乡镇政府政策动员的一个解释

公共管理与政策评论 2024年第6期13卷 135-148页

作者：赵军义西安交通大学马克思主义学院

在政策软约束情境下,乡镇政府如何赋予政策执行刚性以顺利实现政策动员,仍然是学术界有待解释的重要问题。基于甘肃省H县五个乡镇的公共文化治理实践,运用扎根理论构建了用于解释乡镇政府政策动员行为模式的“关联性治理”理论模型。研... 详细信息

在政策软约束情境下,乡镇政府如何赋予政策执行刚性以顺利实现政策动员,仍然是学术界有待解释的重要问题。基于甘肃省H县五个乡镇的公共文化治理实践,运用扎根理论构建了用于解释乡镇政府政策动员行为模式的“关联性治理”理论模型。研究发现,乡镇政府基于制度、利益和文化等治理要素之间的关联性建立乡村社会网络,进而通过政策创新机制、任务分解机制和群众动员机制,实现了乡村公共文化治理任务在乡镇与村之间的有效传递,提升了治理主体间一致行动的能力,达成了纵向和横向两个维度的政策动员目标。本文拓展了政策动员的研究视角,可以为软约束情景下的政策执行实践提供参考。

关键词：政策软约束政策动员公共文化治理关联性治理行为模式

Gut microbial metabolite targets HDAC3-FOXK1-interferon axis in fibroblast-like synoviocytes to ameliorate rheumatoid arthritis

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Bone Research 2024年第2期12卷 421-437页

作者： Hongzhen Chen Xuekun Fu Xiaohao Wu junyi zhao Fang Qiu Zhenghong Wang Zhuqian Wang Xinxin Chen Duoli Xie Jie Huang Junyu Fan Xu Yang Yi Song Jie Li Dongyi He Guozhi Xiao Aiping Lu Chao Liang Department of Systems Biology School of Life SciencesSouthern University of Science and TechnologyGuangdong Provincial Key Laboratory of Cell Microenvironment and Disease ResearchShenzhen Key Laboratory of Cell MicroenvironmentShenzhen 518055China Institute of Integrated Bioinfomedicine and Translational Science(IBTS) School of Chinese MedicineHong Kong Baptist UniversityHong Kong SAR 999077China Department of Biochemistry School of MedicineSouthern University of Science and TechnologyGuangdong Provincial Key Laboratory of Cell Microenvironment and Disease ResearchShenzhen Key Laboratory of Cell MicroenvironmentShenzhen 518055China Division of Immunology and Rheumatology Stanford UniversityStanfordCA 94305USA VA Palo Alto Health Care System Palo AltoCA 94304USA Institute of Plant and Food Science Department of BiologySouthern University of Science and TechnologyShenzhen 518055China Department of Rheumatology Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai University of Traditional Chinese MedicineShanghaiChina Department of Computational Biology St.Jude Children’s Research HospitalMemphisTNUSA Department of Laboratory Medicine Peking University Shenzhen HospitalShenzhenChina Guangdong-Hong Kong-Macao Joint Lab on Chinese Medicine and Immune Disease Research Guangzhou 510006China Shanghai University of Traditional Chinese Medicine Shanghai 200032China State Key Laboratory of Proteomics National Center for Protein Sciences(Beijing)Beijing Institute of Lifeomics100850 BeijingChina

Rheumatoid arthritis(RA)is an autoimmune *** studies hold an opinion that gut microbiota is environmentally acquired and associated with RA ***,accumulating evidence demonstrates that genetics also shape the gut *** is known that some strains of inbred laboratory mice are highly susceptible to collagen-induced arthritis(CIA),while the others are resistant to ***,we show that transplantation of fecal microbiota of CIA-resistant C57BL/6J mice to CIA-susceptible DBA/1J mice confer CIA resistance in DBA/1J mice.C57BL/6J mice and healthy human individuals have enriched *** than DBA/1J mice and RA *** of *** prevents CIA in DBA/1J *** identify that *** mainly produces propionate and C57BL/6J mice and healthy human individuals have higher level of ***-like synoviocytes(FLSs)in RA are activated to undergo tumor-like *** disrupts HDAC3-FOXK1 interaction to increase acetylation of FOXK1,resulting in reduced FOXK1 stability,blocked interferon signaling and deactivation of *** treat CIA mice with propionate and show that propionate attenuates ***,a combination of propionate with anti-TNF etanercept synergistically relieves *** results suggest that *** or propionate could be an alternative or complementary approach to the current therapies.

关键词： HDAC3 cytes interferon

元治理视角下的乡村公共文化治理:回顾与前瞻

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图书馆 2022年第2期 1-10页

作者：赵军义兰州大学管理学院兰州730000

“文化治理”一词作为“舶来品”已在中文术语中获得了长足发展。然而,对于治理理论的极度推崇,却使我们不可避免地忽略了治理本身的“失灵问题”。中国乡村公共文化治理实践在经历了计划经济时期的强政治面向、市场经济时期的强经济面... 详细信息

“文化治理”一词作为“舶来品”已在中文术语中获得了长足发展。然而,对于治理理论的极度推崇,却使我们不可避免地忽略了治理本身的“失灵问题”。中国乡村公共文化治理实践在经历了计划经济时期的强政治面向、市场经济时期的强经济面向后,目前正处于文化强国建设时期兼顾“政治—经济—文化”三重面向的新阶段,更加注重发挥乡村公共文化的复合治理功能,并且以实现乡风文明为价值取向。这不仅要求政府要有明确的职责定位,而且应当具备平衡社会利益博弈的能力,维持好三种治理面向的“开合”,避免社会阶层利益冲突对治理造成损害,建构完善的乡村公共文化治理体制与规则。

关键词：元治理理论公共文化治理乡村文化乡村振兴

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列车运行控制系统信息安全风险评估方法

中国安全科学学报 2020年第S1期30卷 172-178页

作者：张帆步兵赵骏逸北京交通大学轨道交通控制与安全国家重点实验室北京100044

为评估城市轨道交通列车运行控制系统的信息安全水平,提出风险管理建议,研究适用于列车运行控制系统的信息安全风险评估方法。首先,介绍基于通信的列车运行控制(CBTC)系统的设备组成和列车控制原理;然后,构建列控系统的复杂网络模型,并... 详细信息

为评估城市轨道交通列车运行控制系统的信息安全水平,提出风险管理建议,研究适用于列车运行控制系统的信息安全风险评估方法。首先,介绍基于通信的列车运行控制(CBTC)系统的设备组成和列车控制原理;然后,构建列控系统的复杂网络模型,并提出移动授权传输路径,分析网络攻击对列车控制的影响;其次,利用攻击树方法确定网络攻击事件的可能性;最后,给出列车运行控制系统信息安全风险评估方法,并通过半实物仿真平台进行仿真。研究表明:该方法可以发现系统中的薄弱环节,并反映系统的信息安全状态。

关键词：基于通信的列车运行控制(CBTC) 信息安全风险评估复杂网络攻击树

政府绩效管理领域的研究热点及演化路径分析——基于CNKI(2002-2015)的计量分析

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现代情报 2017年第2期37卷 141-150页

作者：李少惠赵军义兰州大学管理学院甘肃兰州730000

[目的 /意义]近年来,政府绩效管理成为学界和实践界的关注热点,对该领域的研究热点及演化路径的计量分析具有重要意义。[方法 /过程]以2002-2015年CNKI中的472篇政府绩效管理领域的研究期刊为样本,利用CiteSpace进行高频关键词统计及各... 详细信息

[目的 /意义]近年来,政府绩效管理成为学界和实践界的关注热点,对该领域的研究热点及演化路径的计量分析具有重要意义。[方法 /过程]以2002-2015年CNKI中的472篇政府绩效管理领域的研究期刊为样本,利用CiteSpace进行高频关键词统计及各类科学知识图谱绘制,并结合专家建议。[结果/结论]获悉目前该领域的研究热点、演化路径及未来潜在的研究热点。

关键词：政府绩效管理科学知识图谱热点主题研究演化路径 CiteSpace