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Yan Yonghe and his Formulas for Succouring the Sick(Ji Sheng Fang)
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作者 Yongxuan Liang Yinghua Huang 《Journal of Traditional Chinese Medical Sciences》 2025年第3期317-318,共2页
Yan Yonghe,also known as Yan Zili(1199-1267),was a famous physician of the South Song Dynasty.He lived in Nankang(present Jiujiang,Jiangxi province),and called himself“a Native of Lushan Mountain”because he lived th... Yan Yonghe,also known as Yan Zili(1199-1267),was a famous physician of the South Song Dynasty.He lived in Nankang(present Jiujiang,Jiangxi province),and called himself“a Native of Lushan Mountain”because he lived there for a long time.In the preface of the Formulas for Succouring the Sick(Ji Sheng Fang),he said he loved study since childhood,and when he was 12 years old he started to learn medicine. 展开更多
关键词 Lushan Mountain South Song Dynasty Yan Yonghe Ji Sheng Fang PHYSICIAN
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基于COST259信道模型的TDOA算法在网格化监测中的应用
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作者 王佳维 彭小乙 +2 位作者 张朋 吕俊璋 李世林 《中国无线电》 2025年第5期47-51,共5页
TDOA定位方法是一种依据时间差信息进行无线电定位的技术,具有系统简单、定位精度高、组网方便、覆盖范围广等优点,应用前景十分广泛。文章首先阐述了TDOA定位算法的发展现状,然后详细对Chan、Taylor和Fang三种经典TDOA算法进行了介绍,... TDOA定位方法是一种依据时间差信息进行无线电定位的技术,具有系统简单、定位精度高、组网方便、覆盖范围广等优点,应用前景十分广泛。文章首先阐述了TDOA定位算法的发展现状,然后详细对Chan、Taylor和Fang三种经典TDOA算法进行了介绍,最后以TDOA定位方法基本原理为基础,分别在理想信道环境和COST259信道模型下进行了蒙特卡罗仿真,着重分析了参与定位的基站数量、监测设备的测量误差、蜂窝小区半径等因素对定位性能的影响,并根据均方根误差值分析了三种方法的优缺点和适用场景。 展开更多
关键词 无线电定位 TDOA CHAN算法 Taylor算法 Fang算法
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Identification of an immunodominant neutralizing epitope of porcine astrovirus type 5 capsid protein
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作者 Yixin Hu Zehui Li +5 位作者 Chenlin Hao Hao Lu Yunfei Xing Kexin Liu Xiaohui Jin Zhanyong Wei 《Virologica Sinica》 2025年第2期296-299,共4页
Dear Editor,Porcine astrovirus(PAstV)is a swine enteric virus which can cause diarrhea and vomiting in pigs,particularly in neonatal piglets(Fang et al.,2019;Su etal.,2020).PAstVwasfirstdetectedby electron microscopyi... Dear Editor,Porcine astrovirus(PAstV)is a swine enteric virus which can cause diarrhea and vomiting in pigs,particularly in neonatal piglets(Fang et al.,2019;Su etal.,2020).PAstVwasfirstdetectedby electron microscopyinthe fecal samples from diarrheal piglets in 1980(Bridger,1980).Based on viral genomes,PAstV is divided into five distinct genotypes(PAstV1-PAstV5)(Fang et al.,2019;Mi et al.,2020;Su et al.,2020).The PAstV5 was the main genotype prevalent in China.Xiao reported a positivity rate of 24.8%for PAstV5 as the predominant genotype in Hunan Province(Xiao et al.,2017).Cai reported a positive rate of 7.5%for PAstV5 in Sichuan Province(Cai et al.,2016).A study in Yunnan Province revealed a total infection rate of 39.9%for PAstV2 and PAstV5(Ren et al.,2022).The PAstV genome open read frame 2(ORF2)encodes for a~90 kDa structural polyprotein called capsid protein(Cap)(Arias and DuBois,2017).The region including amino acids(aa)1-415(N-terminus)of the Cap ishighly conserved,and the region starting at aa 416(C-terminus)is extremely variable(Ren et al.,2022).Moreover,the Cap can bind to host cell receptors and is the main target of neutralizing antibodies(Ricemeyer et al.,2022). 展开更多
关键词 fecal samples viral genomespastv porcine astrovirus type electron microscopyinthe immunodominant neutralizing epitope neonatal piglets fang diarrheal piglets swine enteric virus
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Efficacy and Safety of Miao Medicine Jinlong Zhi Xie Fang Enema in the Treatment of Ulcerative Colitis (Large Intestine Damp-Heat Syndrome): A Randomized Controlled Trial
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作者 Chongwu Che Yingxiang Yang +3 位作者 Liuying Cao Qin Yang Linmin Teng Wang Long 《Journal of Clinical and Nursing Research》 2025年第5期19-27,共9页
Ulcerative colitis(UC)is a chronic inflammatory bowel diseasethat significantly affects the quality of life of patients.Traditional treatments often have limitations,and alternative therapies are being explored.Miao M... Ulcerative colitis(UC)is a chronic inflammatory bowel diseasethat significantly affects the quality of life of patients.Traditional treatments often have limitations,and alternative therapies are being explored.Miao Medicine,particularly Jinlong Zhi Xie Fang Enema,is a traditional herbal remedy used to treat UC symptoms,especially in patients with Large Intestine Damp-Heat Syndrome.However,clinical evidence supporting its efficacy is limited. 展开更多
关键词 Ulcerative colitis Jinlong Zhi Xie Fang Miao Medicine Intestinal mucosal barrier Randomized controlled trial Herbal medicine
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Review on the research progress into the traditional Chinese medicinal Jing Fang granules:chemical composition,pharmacological effects and clinical applications
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作者 Rui Zhao Tai-Li Zhao +6 位作者 Hong-Hua Li Pei-Pei Zhao Meng-Meng Wang Yi-Wei Meng Jing-Li Ren Xin Yin Jing-Chun Yao 《Integrative Medicine Discovery》 2025年第6期1-13,共13页
Jing Fang granules(JFG)are a modern Chinese medicinal formulation derived from Jing Fang Defeating Toxin San(JFDS).JFG primarily contains bioactive compounds such as flavonoids/flavonoid glycosides,coumarins and other... Jing Fang granules(JFG)are a modern Chinese medicinal formulation derived from Jing Fang Defeating Toxin San(JFDS).JFG primarily contains bioactive compounds such as flavonoids/flavonoid glycosides,coumarins and other components,which have various activities:anti-inflammatory,immune system regulation,antiviral,anti-aging,detoxification,and protection of the liver,lungs,and kidneys.JFG has broad potential therapeutic applications.The mechanisms of JFG’s actions are primarily associated with signaling pathways such as TLR4/NF-κB,PI3K/AKT,and MAPK.This article reviews the research progress on JFG,including chemical composition,pharmacologic effects,mechanism of action,safety,clinical application,etc.,serving as a foundation for future research and clinical applications. 展开更多
关键词 chemical composition clinical application Jing Fang granules pharmacological effect traditional Chinese herbal formula
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张氏的年龄结构及生长特性 被引量:8
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作者 孙宝柱 李晋 +1 位作者 但胜国 谭德清 《淡水渔业》 CSCD 北大核心 2010年第2期3-8,共6页
以鳞片作为年龄鉴定材料,对长江上游特有鱼类张氏(Hemiculter tchangi Fang)种群的年龄结构和生长特性进行了研究。结果表明:张氏鳞片的年轮结构呈疏密切割型,2-3月是年轮形成最多的月份。其渔获物由1-4龄组成,其中857尾为1-2龄,占... 以鳞片作为年龄鉴定材料,对长江上游特有鱼类张氏(Hemiculter tchangi Fang)种群的年龄结构和生长特性进行了研究。结果表明:张氏鳞片的年轮结构呈疏密切割型,2-3月是年轮形成最多的月份。其渔获物由1-4龄组成,其中857尾为1-2龄,占总数的83.84%;雌∶雄性比为1.07∶1,符合1∶1理论比值(X^2=0.754,P〉0.05,n=1001),随着年龄的增长呈雌鱼多于雄鱼的趋势。体长主要分布在81-180 mm(94.9%),体重主要分布在2.9-50.0 g(67.69%)。体长和鳞径呈直线关系,体长和体重呈幂函数关系且幂指数接近3,属于匀速生长类型,生长方程为Lt=196.05(1-e^-0.36(t+1.26);Wt=97.195(1-e^-0.36(t+1.26)^3.145,拐点年龄为1.92龄,相应的体长体重分别为133.5 mm、29.13 g。 展开更多
关键词 张氏 (Hemiculter tchangi Fang) 年龄 生长
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Mechanism of anti-arterial thrombosis of Dahuangzhecong Fang screened by Ti-Al intermetallic compound porous material 被引量:2
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作者 万玲 王战义 +6 位作者 魏星 李佶阳 钟广伟 段晓鹏 贺福元 江垚 王东生 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第12期3156-3160,共5页
The mechanism of antithrombotic of Dahuangzhechong Fang separated and purified by Ti-Al intermetallic compound porous material (TAICPM) was researched. Dahuangzhechong Fang, which was isolated and screened by TAICPM, ... The mechanism of antithrombotic of Dahuangzhechong Fang separated and purified by Ti-Al intermetallic compound porous material (TAICPM) was researched. Dahuangzhechong Fang, which was isolated and screened by TAICPM, was used to oral rats. At the end of study, their blood and thrombus were collected. The results show that TAICPM with the pore size of 1-5 μm can screen Dahuangzhechong Fang well. Dahuangzhechong Fang can increase 6-keto-PGF1α, lower content of TXD2 and platelet. Dahuangzhechong Fang has good effect to resist arterial thrombosis. 展开更多
关键词 Ti-Al intermetallic compound porous materials Dahuangzhecong Fang arterial thrombosis isolated Chinese medicine
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南水水库鲂鱼体长与鳞长的生长关系 被引量:1
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作者 曹立文 赵俊 李红敬 《信阳师范学院学报(自然科学版)》 CAS 2001年第2期198-200,共3页
研究表明 :鲂鱼的体长与鳞长的生长呈显著的正线性相关 .L =1.432 2 +4 5 .749R ,r=0 .95 31,n =187.从生长指标看 ,属均匀生长型 ,6龄前增长较快 ,6龄后生长减慢 ,其中
关键词 fang鱼 体长 鳞长 生长 南水水库 养殖
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基于Fang算法的TDOA室内定位技术 被引量:14
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作者 陈思翰 《太赫兹科学与电子信息学报》 2017年第5期752-755,共4页
传统基于全球定位系统(GPS)的定位技术应用,已在室外环境下为人们提供了许多便利。随着近年来人们生活水平的不断提高,大众对定位的诉求已不仅限于室外,在智慧商场、企业人员智能管理、校园智能管理等场景,要求对室内用户进行定位监测,... 传统基于全球定位系统(GPS)的定位技术应用,已在室外环境下为人们提供了许多便利。随着近年来人们生活水平的不断提高,大众对定位的诉求已不仅限于室外,在智慧商场、企业人员智能管理、校园智能管理等场景,要求对室内用户进行定位监测,而传统的GPS定位精确度有限,在室内已无法应用。目前室内定位常用的技术有红外线、蓝牙、Wi-Fi以及基于室内移动网路的无线定位等,无线定位则是其中的热点。本文介绍了一种基于室内分布式基站,运用Fang算法实现到达时间差(TDOA)定位的技术研究,并对其定位精确度进行了探索。 展开更多
关键词 到达时间差(TDOA) Fang算法 室内定位 无线定位
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基于超宽带技术的TDOA室内三维定位算法研究 被引量:11
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作者 王彪 傅忠谦 《微型机与应用》 2013年第14期83-86,共4页
在室内环境下对目标进行无线定位时,由于障碍物的遮挡而造成的非视距(NLOS)误差对定位精度产生了很大的影响。针对此问题,对利用超宽带(UWB)技术测量得到的到达时间差(TDOA)数据进行残差分析,首先鉴别测得的数据中是否存在NLOS误差,然... 在室内环境下对目标进行无线定位时,由于障碍物的遮挡而造成的非视距(NLOS)误差对定位精度产生了很大的影响。针对此问题,对利用超宽带(UWB)技术测量得到的到达时间差(TDOA)数据进行残差分析,首先鉴别测得的数据中是否存在NLOS误差,然后针对存在NLOS误差的情况,提出将Fang算法得到的定位结果作为泰勒级数展开法的初始定位值,组成Fang-Taylor级数联合算法来计算NLOS情况下的定位结果。而对于视距(LOS)情况下测得的数据,仍采用单一的Fang算法进行计算。仿真对比实验表明,Fang-Taylor级数联合算法有效地提高了室内NLOS环境下目标的定位精度。 展开更多
关键词 非视距 三维定位 Fang算法 泰勒级数展开法
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李昉的类书编纂思想及成就 被引量:3
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作者 李乐民 《河南大学学报(社会科学版)》 2002年第5期115-117,共3页
在宋太宗时两度入相的李 ,史籍只注重他作为循吏为人厚道的一面却忽视了他在文献整理上的成就。他主编了《太平广记》、《太平御览》和《文苑英华》三大部类书 ,在编纂方法上多所创新 ,为保存中国古典文献贡献巨大。尤其是他开创性地... 在宋太宗时两度入相的李 ,史籍只注重他作为循吏为人厚道的一面却忽视了他在文献整理上的成就。他主编了《太平广记》、《太平御览》和《文苑英华》三大部类书 ,在编纂方法上多所创新 ,为保存中国古典文献贡献巨大。尤其是他开创性地主持编纂野史笔记类书《太平广记》 ,体现了他宽广的文化视野。 展开更多
关键词 李Fang 类书编纂 太平广记 太平御览 文苑英华
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基于曲线拟合的物流仓储自动导引车远程定位算法 被引量:3
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作者 张颖 《自动化与仪器仪表》 2020年第12期119-123,共5页
针对物流仓储引导车远程定位精度差的问题,在讨论TDOA测距原理和方法的基础上,提出在传统的Fang算法的基础上引入Taylor算法。具体思路为首先通过Fang算法实现初步的位置估计,然后再通过Taylor级数展开求取更高精度位置,最后,选用Matlab... 针对物流仓储引导车远程定位精度差的问题,在讨论TDOA测距原理和方法的基础上,提出在传统的Fang算法的基础上引入Taylor算法。具体思路为首先通过Fang算法实现初步的位置估计,然后再通过Taylor级数展开求取更高精度位置,最后,选用Matlab R2014a软件对上述算法进行仿真,并进行现场试验模拟。结果表明,无论是仿真,还是在现场AVG模拟,构建的Fang-Taylor算法在定位精度方面,特别是在NLOS环境下具有明显的精度优势。 展开更多
关键词 曲线拟合 Fang算法 Taylor算法 NLOS环境
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哥纳香三醇衍生物抗肿瘤活性研究进展
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作者 陈立军 于利人 +1 位作者 姚丽 靳秋月 《中草药》 CAS CSCD 北大核心 2006年第7期1116-1116,I0002,共2页
关键词 海南哥纳香醇甲 抗肿瘤活性 衍生物 活性研究 三醇 WALL Fang 体外研究 哥纳香属 番荔枝科
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历代对任日方骈文之评价
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作者 汪泓 《郑州大学学报(哲学社会科学版)》 CSSCI 北大核心 2001年第6期78-82,共5页
六朝的文学观念 ,无论诗赋乐府还是实用型文章都属于“文”,都要讲究与文体要求相符的语言美 ,任日方的骈文即代表着梁代实用型骈体文的最高水平。由于文学观念的差异 ,历代对任日方骈文的评价分歧较多 ,主要集中于用典特点及其有无逸... 六朝的文学观念 ,无论诗赋乐府还是实用型文章都属于“文”,都要讲究与文体要求相符的语言美 ,任日方的骈文即代表着梁代实用型骈体文的最高水平。由于文学观念的差异 ,历代对任日方骈文的评价分歧较多 ,主要集中于用典特点及其有无逸气两方面。明清时期有多家评论 ,但大多为评点式的 ,难免以偏概全。至现代学者刘师培、骆鸿凯 ,才较为全面、深刻和细致地分析和概括了任日方骈文的艺术特色与语言魅力。 展开更多
关键词 沈诗任毛 用典 任Fang 骈文 艺术特色 语言魅力
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鲍叔鼎《医方约说》初探
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作者 刘巨海 《世界中西医结合杂志》 2014年第3期218-220,共3页
《医方约说》为明·鲍叔鼎编撰,现孤本存于上海中医药大学。文章通过对《医方约说》文献整理研究,考证作者学术渊源和《医方约说》版本状况,认为《医方约说》集张仲景、李东垣、刘完素、朱丹溪"四子"之说,每论能勾摘各家... 《医方约说》为明·鲍叔鼎编撰,现孤本存于上海中医药大学。文章通过对《医方约说》文献整理研究,考证作者学术渊源和《医方约说》版本状况,认为《医方约说》集张仲景、李东垣、刘完素、朱丹溪"四子"之说,每论能勾摘各家之长,而以丹溪为宗,每篇总论之后多列主方,后随脉证加减用药,次列附方,使读者便于据证检方用药。通过本书的整理研究,认为本书为丹溪学派著作,宣扬丹溪学派学术观点,列方效验便廉,达到为初学者引径入门,为病家据证用药的目的。 展开更多
关键词 医方约说 鲍叔鼎 文献研究 YI Fang YUE Shuo(《医方约说》)
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New Replacement Name for Rana paradoxa Mocquard,1890 with Designations of Lectotypes for Rana paradoxa and Rana conspicillata Günther,1872:Both Synonymized with Limnonectes kuhlii (Tschudi,1838) (Dicroglossidae:Dicroglossinae)
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作者 Masafumi MATSUI Alain DUBOIS Annemarie OHLER 《Asian Herpetological Research》 SCIE 2013年第3期187-189,共3页
Fanged frogs, now called Limnonectes kuhlii, from Borneo are remotely related to true Javanese L. kuhliL For future taxonomy of Bornean fanged frogs, we fix the nomenclatural status of two existing names, Rana conspic... Fanged frogs, now called Limnonectes kuhlii, from Borneo are remotely related to true Javanese L. kuhliL For future taxonomy of Bornean fanged frogs, we fix the nomenclatural status of two existing names, Rana conspicillata Giunther, 1872 and Rana paradoxa Mocquard, 1890. Morphological comparison of the type-series revealed heterospecific relationships of the two species. For R. conspicillata, we designate BMNH 1947.2.29.20 as the lectotype, and for R. para doxa, we also designate MNHN 1889.222 as the lectotype and propose a replacement name Limnonectes mocquardi, in order to stabilize their nomenclature. 展开更多
关键词 fanged frogs Limnonectes kuhlii BORNEO nomenclature LECTOTYPE replacement name
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乳腺癌抑郁中医证候系统综述 被引量:7
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作者 孟醒 范姝雅 +1 位作者 王鹏宇 马宁 《实用中医内科杂志》 2015年第11期4-6,共3页
[背景]乳腺癌患者抑郁程度较高,严重影响生活质量。[目的]寻找乳腺癌中医证候规律。[检索策略]检索词:乳腺癌、抑郁、辨证、经验、证型、证候,检索CNKI、Wan Fang Data、VIP建库至2014年10月,中医证型研究/中医辨证分型特点/专方治疗特... [背景]乳腺癌患者抑郁程度较高,严重影响生活质量。[目的]寻找乳腺癌中医证候规律。[检索策略]检索词:乳腺癌、抑郁、辨证、经验、证型、证候,检索CNKI、Wan Fang Data、VIP建库至2014年10月,中医证型研究/中医辨证分型特点/专方治疗特点/基本症状描述相关文献,同时追溯纳入文献/参考文献。[纳入标准]1研究类型:对照研究、经验报道、临床研究。文种限中文。2研究对象:种族、国籍、病程不限;排除其他疾病、证候或合并症。3资料完整。具有中医证型研究或中医辨证分型特点或专方治疗特点或基本症状描述。[资料提取与分析]手工检索:双人独立完成,并核对检索结果,意见不统一,咨询2~3名专家讨论决定,保证纳入文献符合标准。采用Excel2013建立数据库,求合、排序。[结果]初检88篇中文文献,阅读文献题名、摘要及全文,排除82篇,纳入6篇,均为中文文献。乳腺癌抑郁状态为虚证,肝肾阴虚为主;常见单一证候单证型:气滞证最为常见;病位在肝,与心,脾,肾关系密切。[结论]乳腺癌抑郁状态以肝肾阴虚、肝郁脾虚、肝郁气滞为主。[问题与展望]目前对乳腺癌抑郁状态的中医证候研究尚属初始阶段,今后有必要开展多中心大样本的相关中医证候调查。 展开更多
关键词 乳腺癌 抑郁 中医证候 肝肾阴虚 肝郁脾虚 肝郁气滞 CNKI WAN Fang Data VIP Excel2013数据库 求合 排序 系统综述
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基于聚类和TDOA的无线基站定位算法研究 被引量:4
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作者 方焕阳 李烨 《通信技术》 2019年第2期311-317,共7页
为提高无线定位的精度,提出了基于聚类和TDOA的基站定位优化算法。首先,建立TDOA定位模型,采用Fang算法对移动终端的位置进行初步估计,并根据多个初步估计值获得的先验信息,去除双解情况下误差较大的估计位置;其次,采用K-means聚类算法... 为提高无线定位的精度,提出了基于聚类和TDOA的基站定位优化算法。首先,建立TDOA定位模型,采用Fang算法对移动终端的位置进行初步估计,并根据多个初步估计值获得的先验信息,去除双解情况下误差较大的估计位置;其次,采用K-means聚类算法进行聚类,进一步筛选出离群点,得到更精确的位置估计数据集,将其取平均后得到精确位置;最后,采用仿真实验验证算法的性能。实验结果表明,相对于经典Fang算法,所提算法具有更优的定位性能,应用前景广阔。 展开更多
关键词 基站定位 到达时间差 非视距误差 Fang算法 K-MEANS
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Tong xie yao fang relieves irritable bowel syndrome in rats via mechanisms involving regulation of 5-hydroxytryptamine and substance P 被引量:30
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作者 Yue Yin Lei Zhong +3 位作者 Jian-Wei Wang Xue-Ying Zhao Wen-Jing Zhao Hai-Xue Kuang 《World Journal of Gastroenterology》 SCIE CAS 2015年第15期4536-4546,共11页
AIM: To investigate whether the Chinese medicine Tong Xie Yao Fang(TXYF) improves dysfunction in an irritable bowel syndrome(IBS) rat model. METHODS: Thirty baby rats for IBS modeling were separated from mother rats(1... AIM: To investigate whether the Chinese medicine Tong Xie Yao Fang(TXYF) improves dysfunction in an irritable bowel syndrome(IBS) rat model. METHODS: Thirty baby rats for IBS modeling were separated from mother rats(1 h per day) from days 8 to 21, and the rectum was expanded by angioplasty from days 8 to 12. Ten normal rats were used as normal controls. We examined the effects of TXYF on defection frequency, colonic transit function and smooth muscle contraction, and the expression of 5-hydroxytryptamine(5-HT) and substance P(SP) in colonic and hypothalamus tissues by Western blot and RT-PCT techniques in both normal rats and IBS model rats with characterized visceral hypersensitivity.in normal rats and 4.5 ± 1.58 in IBS model rats(P < 0.001). However, the defecation frequency was significantly decreased(3.0 ± 1.25 vs 4.5 ± 1.58, P < 0.05), while the time(in seconds) of colon transit function was significantly increased(256.88 ± 20.32 vs 93.36 ± 17.28, P < 0.001) in IBS + TXYF group rats than in IBS group rats. Increased colonic smooth muscle tension and contract frequency in IBS model rats were significantly decreased by administration of TXYF. Exogenous agonist stimulants increased spontaneous activity and elicited contractions of colon smooth muscle in IBS model rats, and all of these actions were significantly reduced by TXYF involving 5-HT and SP down-regulation. CONCLUSION: TXYF can modulate the activity of the enteric nervous system and alter 5-HT and SP activities, which may contribute to the symptoms of IBS. 展开更多
关键词 Tong Xie YAO Fang IRRITABLE BOWEL SYNDROME 5-HYDROXYTRYPTAMINE Substance P TRADITIONAL Chinesemedicine
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Effect of Tong Xie Yao Fang on endogenous metabolites in urine of irritable bowel syndrome model rats 被引量:18
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作者 Xue-Ying Zhao Jian-Wei Wang +3 位作者 Yue Yin Kai Li Miao Zhang Fu-Ping Yan 《World Journal of Gastroenterology》 SCIE CAS 2019年第34期5134-5151,共18页
BACKGROUND Tong Xie Yao Fang is a representative traditional Chinese prescription for the treatment of liver and spleen deficiency,abdominal pain and diarrhea.It has a unique function in the treatment of gastrointesti... BACKGROUND Tong Xie Yao Fang is a representative traditional Chinese prescription for the treatment of liver and spleen deficiency,abdominal pain and diarrhea.It has a unique function in the treatment of gastrointestinal dysfunction including irritable bowel syndrome(IBS),is a common functional bowel disease.Its main symptoms are recurrent abdominal pain,diarrhea,constipation or alternations between diarrhea and constipation.There are obvious differences in metabolites between TCM syndromes.By comparing the body fluid metabolism maps of model animals,metabolomics can discover disease biomarkers,analyze the differences in metabolic pathways and understand the pathological process and the metabolic pathways of substances in the body.Thus,the evaluation of animal models tends to be comprehensive and objective.This may provide further understanding between the interaction between Tong Xie Yao Fang and the IBS model.AIM To evaluate the effect of Tong Xie Yao Fang on IBS rats by using metabolomics method.METHODS Wistar rats were used to establish IBS models,and then randomly divided into four groups:A model control group and three Tong Xie Yao Fang treatment groups(high,medium and low doses).A normal,non-IBS group was established.The rats were treated for 2 wk.On days 0 and 14 of the experimental model,urine was collected for 12 h and was analyzed by ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry.Nine potential biomarkers were identified,and six major metabolic pathways were found to be related to IBS.RESULTS In the study of metabonomics,nine potential biomarkers including L-serine,4-methylgallic acid,L-threonine,succinylacetone,prolyl-hydroxyproline,valylserine,acetyl citrate,marmesin rutinoside and 5-hydroxy-L-tryptophan were identified in urine,which were assigned to amino acids,organic acids,succinyl and glycosides.Furthermore,the metabolic pathway of L-serine,L-threonine and 5-hydroxy-L-tryptophan was found in the Kyoto Encyclopedia of Genes and Genomes,which mainly involved the metabolism of cysteine and methionine,vitamin B6 metabolism,serotonin synapse,tryptophan metabolism,sphingolipid metabolism,digestion,absorption of protein and amino acid metabolism.These pathways are related to intestinal dysfunction,inflammatory syndrome,nervous system dysfunction and other diseases.CONCLUSION Tong Xie Yao Fang has pharmacological effects on IBS,and its mechanism may be related to the metabolism of the nine potential biomarkers identified above in urine. 展开更多
关键词 Tong Xie YAO Fang IRRITABLE BOWEL syndrome Liver-spleen disharmony ENDOGENOUS METABOLITES Metabolomics
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