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Ultrasound guidance for transforaminal percutaneous endoscopic lumbar discectomy may prevent radiation exposure: A case report

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World Journal of Clinical Cases 2019年第10期7卷 1161-1168页

作者： ming-Bo Zhang Long-Tao Yan shou-Peng li Ying-Ying li Peng Huang Department of Ultrasound General Hospital of Chinese PLABeijing 100853China Department of Pain China-Japan Friendship HospitalBeijing 100029China Department of Orthopedics General Hospital of Chinese PLABeijing 100853China

BACKGROUND Percutaneous endoscopic lumbar discectomy(PELD)has become a mature and mainstream minimally invasive surgical technique for treating lumbar disc herniation(LDH).Repeated fluoroscopy,with more than 30 shots on average,is inevitable to ensure its accuracy and ***,exposure to X-rays may pose a threat to human *** herein report a case of ultrasound(US)-assisted PELD in two levels of LDH to explore a new possibility that can reduce the radiation dose during puncture and cannulation in *** SUMMARY A 38-year-old man with low back pain and left leg pain for more than 7 years came to our clinic,his symptoms had aggravated for 1 month,and he was diagnosed with L3-4 and L4-5 disc *** received US-guided PELD with good results:His straight leg elevation increased from 40 to 90 degrees after PELD,and his visual analog scale(VAS)and Oswestry Disability Index scores both significantly decreased immediately and 6 mo after *** the guidance of US,he received only two shots of fluoroscopy(fluoroscopic time:4.4 s;radiation dose:3.98 mGy).To our knowledge,this is the first case of US-guided puncture and cannulation of PELD for LDH at two *** US could be used to guide PELD and has the potential to largely reduce radiation than traditional X-ray guidance.

关键词： Ultrasound Endoscopic lumbar discectomy Lumbar disc herniation Radiation Guidance Case report

Driving forces and their interactions of soil erosion in soil and water conservation regionalization at the county scale with a high cultivation rate

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Journal of Mountain Science 2023年第9期20卷 2502-2518页

作者： LUO Bang-lin li Jiang-wen GONG Chun-ming ZHONG shou-qin WEI Chao-fu College of Resources and Environment Southwest UniversityChongqing 400716China Key Laboratory of Eco-environment in Three Gorges Region(Ministry of Education) Southwest UniversityChongqing 400716China Chongqing Water Conservancy&Electric Power Construction Survey&Design Research Institute Co. LTDChongqing 401120China Key Laboratory of Arable Land Conservation(Southwestern China) Ministry of AgricultureChongqing 400715China State Cultivation Base of Eco-agriculture for Southwest Mountainous Land Southwest UniversityChongqing 400715China

Soil erosion control based on county scale Soil and Water Conservation Regionalization(SWCR)is an essential component of China's ecological civilization *** SWCR,the quantitative analysis of the spatial heterogeneity and driving factors of soil erosion among different regions is still *** is of great significance for soil erosion control to deeply examine the factors contributing to soil erosion(natural,land use,and socioeconomic factors)and their interaction at the county and regional *** study focused on a highly cultivated area,Hechuan District of Chongqing in the Sichuan *** district(with 30 townships)was divided into four soil and water conservation regions(Ⅰ-Ⅳ)using principal component and hierarchical cluster *** driving factors of soil erosion were identified using the geographical detector *** results showed thatⅰ)the high cultivation rate was a prominent factor of soil erosion,and the sloping farmland accounted for 78.4%of the soil erosion in the study area;ⅱ)land use factors demonstrated the highest explanatory power in soil erosion,and the average interaction of land use factors explained 60.1%of soil erosion in the study area;ⅲ)the interaction between natural factors,socioeconomic factors,and land use factors greatly contributes to regional soil erosion through nonlinear-enhancement of double-factor *** study highlights the importance of giving special attention to the effects of land use factors on soil erosion at the county scale,particularly in mountainous and hilly areas with extensive sloping farmland and a high cultivation rate.

关键词： Soil and Water Conservation Regionalization Driving factors Soil erosion Geographical detector model Spatial heterogeneity

Establishing dynamic thresholds for potato nitrogen status diagnosis with the SPAD chlorophyll meter

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Journal of Integrative Agriculture 2015年第1期14卷 190-195页

作者： ZHENG Hong-li liU Yan-chun QIN Yong-lin CHEN Yang FAN ming-shou College of Agronomy Inner Mongolia Agricultural University Center of Biotechnology Chifeng Academy of Agricultural and Animal Husbandry Sciences College of Ecology and Environment Science Inner Mongolia Agricultural University

The hand-held soil plant analysis development （SPAD） chlorophyll meter nitrogen status of the potato and guiding fertilization recommendations N recommendation, it is critical to establish the threshold SPAD value has proved to be a promising tool in evaluating the n the process of N evaluation of potato plants and （SPAD reading）, below which nitrogen supplement is required. And taking convenient using into account, the threshold needs to be dynamic throughout the potato growing season so that the users can test their potato plants and make fertilization decision at any growing time of potato. To complete this goal, field experiments with different nitrogen supply levels were conducted in different sites in northern China from 2009 to 2011. The results showed that threshold SPAD values decrease as the growing season progresses for all cultivars and planting sites. By statistical analysis, the threshold regression models were established respectively as： y=-0.003χ2-0.0507χ＋58.213 （y, threshold SPAD value; χ, days after emergence） for the potato cultivar Kexin 1, and y=-0.003χ2＋0.017χ＋52.489 （y, threshold SPAD value; χ, days after emergence） for the cultivar Shepody, from which, the threshold SPAD value at any day after emergence can be calculated.

关键词： diagnosis dynamic threshold N status potato SPAD meter

N-Soliton Solutions for the Four-Potential Isopectral Ablowitz–Ladik Equation

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Chinese Physics Letters 2011年第6期28卷 5-8页

作者： CHEN shou-Ting ZHU Xiao-ming li Qi CHEN Deng-Yuan Department of Mathematics Shanghai UniversityShanghai 200444 College of Mathematics and Information Science East China Institute of TechnologyJiangxi 310018

The bilinear form of the four-potential isospectral Ablowitz–Ladik(AL)equation is derived by the dependent variable *** N-soliton solutions of the equation are obtained through the Hirota ***,the double Casoratian so... 详细信息

关键词： technique method equation

Mechanism of action of linggui Zhugan Decoction in treating non-alcoholic fatty liver disease using untargeted metabolomics approach

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Traditional Medicine Research 2025年第2期10卷 65-76页

作者： Huan Pei Ren-lin li Xin-Ran Song Qian-Qian Wan Yu-ming Wang Han-Zhou li Wei-Quan Xu Jia-Bao liao Wei-Bo Wen Jing Miao Huan-Tian Cui School of Basic Medicine Yunnan University of Chinese MedicineKunming 650599China School Clinical Medical College Yunnan University of Chinese MedicineKunming 650599China First School of Clinical Medicine Yunnan University of Chinese MedicineKunming 650599China School of Integrative Chinese and Western Medicine Tianjin University of Traditional Chinese MedicineTianjin 301617China Department of Pharmacy Tianjin Second People's HospitalTianjin 300192China

Background:Non-alcoholic fatty liver disease(NAFLD)is a liver disorder characterized by the accumulation and degeneration of fat in the liver cells,a condition that may further deteriorate and lead to cirrhosis and liver *** studies showed that metabolic dysfunction can promote NAFLD *** Zhugan Decoction(LGZGD)has therapeutic effects on *** mechanism of LGZGD still remains *** study was to examine the impact of LGZGD on the metabolic processes involved in the development of ***:A mice model of NAFLD was treated with *** therapeutic potential of LGZGD was evaluated by assessing the activity of transaminases,lipids levels of blood,and pathological changes in the liver of the mice model of ***,this study also evaluated the influence of LGZGD on liver inflammation and oxidative ***:The results of untargeted metabolomics analysis showed that LGZGD reduced the disordered lipid metabolism in NAFLD *** improved the oxidative stress and also reduced the levels of pro-inflammatory cytokines in the *** metabolomics analysis of liver samples revealed that LGZGD treatment improved metabolic disorders,including alanine,aspartate,glutamate,glycerophospholipid metabolism,and citrate *** RT-qPCR and Western blot results showed that LGZGD could regulate the expression of key enzymes in the metabolic pathway of the citrate cycle,including ATP-citrate lyase(ACLY),alanine-glyoxylate aminotransferase-2(AGXT2),phosphatidylethanolamine N-methyltransferase(PEMT),and succinate dehydrogenase(SDH).Conclusion:We found that LGZGD can treat NAFLD by reducing inflammatory responses,inhibiting oxidative stress,regulating alanine,aspartate,glutamate,and glycerophospholipid metabolism,and citrate cycle pathways.

关键词： NAFLD LGZGD untargeted metabolomics glycerophospholipid metabolism citrate cycle

Feedback Scheduling of Model-based Networked Control Systems with Flexible Workload

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International Journal of Automation and computing 2008年第4期5卷 389-394页

作者： Xian-ming Tang Jin-shou Yu Research Institute of Automation East China University of Science and TechnologyShanghai 200237PRC

In this paper,a novel control structure called feedback scheduling of model-based networked control systems is proposed to cope with a flexible network load and resource *** state update time is adjusted according to the real-time network congestion *** observer is used under the situation where the state of the controlled plant could not be *** stability criterion of the proposed structure is proved with time-varying state update *** the basis of the stability of the novel system structure,the compromise between the control performance and the network utilization is realized by using feedback scheduler. Examples are provided to show the advantage of the proposed control structure.

关键词： Model-based networked control system state update time stability criterion feedback scheduling.

Turbulent Agglomeration of Microparticles in a Cylinder Wake Flow Using LES-DEM:Focusing on the Effect of the Reynolds Number

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Journal of Thermal Science 2025年第1期 34-49页

作者： WANG Shuang MU lin li Xue XIE Jun DONG ming School of Energy and Power Engineering Dalian University of Technology School of Optical Information and Energy Engineering Wuhan Institute of Technology School of Energy and Environment Shenyang Aerospace University

Turbulent agglomeration is viewed as a promising technology for enhancing fine particle removal *** better understand particle transport,agglomeration behaviors,and fluid-particle interactions,we numerically explored these phenomena under cylindrical vortex wake influence using a coupled large eddy simulation and discrete element method（LES-DEM） *** validity of the LES approach was verified by comparison with available direct numerical simulation（DNS） *** adopted the Johnson-Kendall-Roberts（JKR） contact model for particle-particle *** particle dispersion and agglomeration characteristics of particles with different diameters（dp=2-20 μm） in the laminar and transition of shear layer（TrSL） flow regimes were *** particles were concentrated at the vortex centers,while larger particles accumulated around the *** agglomeration efficiency exhibited an M-shaped profile spanwise（y-direction）.With increasing Reynolds number,the agglomeration efficiency and turbulence intensity *** particle agglomeration efficiency peaks at a certain Reynolds ***,at higher Reynolds numbers,reducing the residence time of particles in the flow field decreases the agglomeration efficiency.

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THREE HIGH-ORDER SPliTTING SCHEMES FOR 3D TRANSPORT EQUATION

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Applied Mathematics and Mechanics(English Edition) 2005年第8期26卷 1007-1016页

作者： WANG shou-dong（汪守东） SHEN Yong-ming（沈永明） State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian 116023 P. R. China

Two high-order splitting schemes based on the idea of the operators splitting method are given. The three-dimensional advection-diffusion equation was split into several one-dimensional equations that were solved by these two schemes, only three computational grid points were needed in each direction but the accuracy reaches the spatial fourth-order. The third scheme proposed is based on the classical ADI scheme and the accuracy of the advection term of it can reach the spatial fourth-order. Finally, two typical numerical experiments show that the solutions of these three schemes compare well with that given by the analytical solution when the Peclet number is not bigger than 5.

关键词： 3D advection and diffusion equation operator splitting method highorder scheme numerical modeling

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先天性非交通型脑积水大鼠模型研究

中华神经医学杂志 2007年第4期6卷 337-339页

作者：刘志勇刘昌英李守明杨新跃龚良庚李玲玲江西省医学实验动物中心南昌330006 江西省儿童医院儿童保健科南昌330006 江西医学院第二附属医院磁共振室南昌330006 江西制药有限责任公司南昌330006

目的通过对自发性脑积水动物进行系统观察,探讨建立先天性脑积水模型的可能。方法对幼鼠进行临床症状观察,尿液代谢扫描以及传染性因子的检测,应用GE公司Twinspeed 1.5 T双梯度MR仪,DUALTMJ颞颌关节表面线圈进行头部的磁共振检查,然后... 详细信息

目的通过对自发性脑积水动物进行系统观察,探讨建立先天性脑积水模型的可能。方法对幼鼠进行临床症状观察,尿液代谢扫描以及传染性因子的检测,应用GE公司Twinspeed 1.5 T双梯度MR仪,DUALTMJ颞颌关节表面线圈进行头部的磁共振检查,然后解剖进行大体和光镜病理学检查。结果磁共振示颅内重度脑积水,大脑皮层受压萎缩,基底节区脑组织形态及信号正常。本病并不是由于代谢紊乱所致,而是一个可以遗传的因导水管狭窄、阻塞性的非交通型脑积水,为国内外所没有。结论由于大鼠的饲养管理简单、方便,且较其他动物经济,提供的脑标本体积又较大,孕期也较短,窝(代)发病率高,生理性自发的性状及病理学改变与人类儿童非交通型脑积水疾病的相似性,可以成为一个理想的脑积水动物模型。

关键词：自发性脑积水非交通型动物模型大鼠