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A review of in-situ high-temperature characterizations for understanding the processes in metallurgical engineering
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作者 Yifan Zhao Zhiyuan Li +2 位作者 Shijie Li Weili Song Shuqiang Jiao 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2024年第11期2327-2344,共18页
For the rational manipulation of the production quality of high-temperature metallurgical engineering,there are many challenges in understanding the processes involved because of the black box chemical/electrochemical... For the rational manipulation of the production quality of high-temperature metallurgical engineering,there are many challenges in understanding the processes involved because of the black box chemical/electrochemical reactors.To overcome this issue,various in-situ characterization methods have been recently developed to analyze the interactions between the composition,microstructure,and solid-liquid interface of high-temperature electrochemical electrodes and molten salts.In this review,recent progress of in-situ hightemperature characterization techniques is discussed to summarize the advances in understanding the processes in metallurgical engineering.In-situ high-temperature technologies and analytical methods mainly include synchrotron X-ray diffraction(s-XRD),laser scanning confocal microscopy,and X-ray computed microtomography(X-rayμ-CT),which are important platforms for analyzing the structure and morphology of the electrodes to reveal the complexity and variability of their interfaces.In addition,laser-induced breakdown spectroscopy,high-temperature Raman spectroscopy,and ultraviolet-visible absorption spectroscopy provide microscale characterizations of the composition and structure of molten salts.More importantly,the combination of X-rayμ-CT and s-XRD techniques enables the investigation of the chemical reaction mechanisms at the two-phase interface.Therefore,these in-situ methods are essential for analyzing the chemical/electrochemical kinetics of high-temperature reaction processes and establishing the theoretical principles for the efficient and stable operation of chemical/electrochemical metallurgical processes. 展开更多
关键词 in-situ characterization methods high-temperature electrochemistry ELECTRODES molten salts interfacial reaction
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Kinetics of Non-catalyzed Decomposition of Glucose in High-temperature Liquid Water 被引量:15
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作者 荆琪 吕秀阳 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2008年第6期890-894,共5页
The decomposition kinetics of glucose was studied in high-temperature liquid water (HTLW) from 180 to 220℃ under a pressure of 10 MPa. It was found the main products from glucose decomposition were 5-hydroxymethylf... The decomposition kinetics of glucose was studied in high-temperature liquid water (HTLW) from 180 to 220℃ under a pressure of 10 MPa. It was found the main products from glucose decomposition were 5-hydroxymethylfurfural (5-HMF) and levulinic acid (LA). The decomposition kinetics of 5-HMF and stability of LA in HTLW were further investigated. A kinetic model for glucose decomposition was proposed accordingly. In the model, a series of first-order reactions with the consideration of parallel by-reactions were used to illustrate the decomposition of glucose. The decomposition activation energies of glucose, 5-HMF, and LA were evaluated as 118.85, 95.40, and 31.29 kJ·mol^-1, respectively. 展开更多
关键词 high-temperature hydrothermal decomposition GLUCOSE 5-HYDROXYMETHYLFURFURAL levulinic acid reaction kinetics
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High-temperature treatment to engineer the single-atom Pt coordination environment towards highly efficient hydrogen evolution 被引量:1
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作者 Shanyong Chen Changchang Lv +8 位作者 Ling Liu Muhong Li Jian Liu Jinyang Ma Panpan Hao Xuan Wang Weiping Ding Mingjiang Xie Xuefeng Guo 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2021年第8期212-219,I0005,共9页
Development of high-performance and cost-effective catalysts for electrocatalytic hydrogen evolution reaction(HER)play crucial role in the growing hydrogen economy.Recently,the atomically dispersed metal catalysts hav... Development of high-performance and cost-effective catalysts for electrocatalytic hydrogen evolution reaction(HER)play crucial role in the growing hydrogen economy.Recently,the atomically dispersed metal catalysts have attracted increasing attention due to their ultimate atom utilization and great potential for highly cost-effective and high-efficiency HER electrocatalyst.Herein,we propose a hightemperature treatment strategy to furtherly improve the HER performance of atomically dispersed Ptbased catalyst.Interestingly,after appropriate high-temperature treatment on the atomically dispersed Pt0.8@CN,the Pt species on the designed N-doped porous carbon substrate with rich defect sites can be re-dispersed to single atom state with new coordination environment.The obtained Pt0.8@CN-1000 shows superior HER performance with overpotential of 13 m V at 10 m A cm^(-2)and mass activity of 11,284 m A/mgPtat-0.1 V,much higher than that of the pristine Pt0.8@CN and commercial Pt/C catalyst.The experimental and theoretical investigations indicate that the high-temperature treatment induces the restructuring of coordination environment and then the optimized Pt electronic state leads to the enhanced HER performances.This work affords new strategy and insights to develop the atomically dispersed high-efficiency catalysts. 展开更多
关键词 high-temperature treatment Atomically dispersed metal catalyst Coordination environment Hydrogen evolution reaction
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Overcoming coke formation in high-temperature CO_(2)electrolysis 被引量:1
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作者 Tongbao Wang Guangtai Han +1 位作者 Ziyun Wang Yuhang Wang 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2022年第12期2938-2945,共8页
High-temperature CO_(2)reduction reaction(HT-CO_(2)RR)in solid oxide electrochemical cells(SOECs)features near-unity selectivity,high energy efficiency,and industrial relevant current density for the production of CO,... High-temperature CO_(2)reduction reaction(HT-CO_(2)RR)in solid oxide electrochemical cells(SOECs)features near-unity selectivity,high energy efficiency,and industrial relevant current density for the production of CO,a widely-utilized“building block”in today’s chemical industry.Thus,it offers an intriguing and promising means to radically change the way of chemical manufacturing and achieve carbon neutrality using renewable energy sources,CO_(2),and water.Albeit with the great potential of HT-CO_(2)RR,this carbon utilization approach,unfortunately,has been suffering coke formation that is seriously detrimental to its energy efficiency and operating lifetime.In recent years,much effort has been added to understanding the mechanism of coke formation,managing reaction conditions to mitigate coke formation,and devising coke-formation-free electrode materials.These investigations have substantially advanced the HT-CO_(2)RR toward a practical industrial technology,but the resulting coke formation prevention strategies compromise activity and energy efficiency.Future research may target exploiting the control over both catalyst design and system design to gain selectivity,energy efficiency,and stability synchronously.Therefore,this perspective overviews the progress of research on coke formation in HT-CO_(2)RR,and elaborates on possible future directions that may accelerate its practical implementation at a large scale. 展开更多
关键词 high-temperature CO_(2)electroreduction Solid oxide electrochemical cell Coke formation Boudouard reaction STABILITY
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Approaching Ultimate Synthesis Reaction Rate of Ni-Rich Layered Cathodes for Lithium-Ion Batteries
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作者 Zhedong Liu Jingchao Zhang +9 位作者 Jiawei Luo Zhaoxin Guo Haoran Jiang Zekun Li Yuhang Liu Zijing Song Rui Liu Wei-Di Liu Wenbin Hu Yanan Chen 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第10期392-402,共11页
Nickel-rich layered oxide LiNi_(x)Co_(y)MnzO_(2)(NCM,x+y+z=1)is the most promising cathode material for high-energy lithium-ion batteries.However,conventional synthesis methods are limited by the slow heating rate,slu... Nickel-rich layered oxide LiNi_(x)Co_(y)MnzO_(2)(NCM,x+y+z=1)is the most promising cathode material for high-energy lithium-ion batteries.However,conventional synthesis methods are limited by the slow heating rate,sluggish reaction dynamics,high energy consumption,and long reaction time.To overcome these chal-lenges,we first employed a high-temperature shock(HTS)strategy for fast synthesis of the NCM,and the approaching ultimate reaction rate of solid phase transition is deeply investigated for the first time.In the HTS process,ultrafast average reaction rate of phase transition from Ni_(0.6)Co_(0.2)Mn_(0.2)(OH)_(2) to Li-containing oxides is 66.7(%s^(-1)),that is,taking only 1.5 s.An ultrahigh heating rate leads to fast reaction kinetics,which induces the rapid phase transition of NCM cathodes.The HTS-synthesized nickel-rich layered oxides perform good cycling performances(94%for NCM523,94%for NCM622,and 80%for NCM811 after 200 cycles at 4.3 V).These findings might also assist to pave the way for preparing effectively Ni-rich layered oxides for lithium-ion batteries. 展开更多
关键词 Nickel-rich layered oxides high-temperature shock Solid reaction kinetics Phase transition reaction rate
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Experimental study on reactions between alkaline basaltic melt and orthopyroxenes: constraints on the evolution of lithospheric mantle in the North China Craton
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作者 Hanqi He Mingliang Wang Hongfeng Tang 《Acta Geochimica》 EI CAS CSCD 2024年第2期354-365,共12页
The experimental results of the reactions between an alkaline basaltic melt and mantle orthopyroxenes under high-temperature and high-pressure conditions of 1300–1400℃ and 2.0–3.0 GPa using a six-anvil apparatus ar... The experimental results of the reactions between an alkaline basaltic melt and mantle orthopyroxenes under high-temperature and high-pressure conditions of 1300–1400℃ and 2.0–3.0 GPa using a six-anvil apparatus are reported in this paper.The reactions are proposed to simulate the interactions between melts from the asthenospheric mantle and the lithospheric mantle.The starting melt in the experiments was made from the alkaline basalt occurring in Fuxin,Liaoning Province,and the orthopyroxenes were separated from the mantle xenoliths in Damaping,Hebei Province.The results show that clinopyroxenes were formed in all the reactions between the alkaline basaltic melt and orthopyroxenes under the studied P–T conditions.The formation of clinopyroxene in the reaction zone is mainly controlled by dissolution–crystallization,and the chemical compositions of the reacted melt are primarily infl uenced by the diff usion eff ect.Temperature is the most important parameter controlling the reactions between the melt and orthopyroxenes,which has a direct impact on the melting of orthopyroxenes and the diff usion of chemical components in the melt.Temperature also directly controls the chemical compositions of the newly formed clinopyroxenes in the reaction zone and the reacted melt.The formation of clinopyroxenes from the reactions between the alkaline basaltic melt and orthopyroxenes can result in an increase of CaO and Al_(2)O_(3) contents in the rocks containing this mineral.Therefore,the reactions between the alkaline basaltic melt from the asthenospheric mantle and orthopyroxenes from the lithospheric mantle can lead to the evolution of lithospheric mantle in the North China Craton from refractory to fertile with relatively high CaO and Al 2 O 3 contents.In addition,the reacted melts in some runs were transformed from the starting alkaline basaltic into tholeiitic after reactions,indicating that tholeiitic magma could be generated from alkaline basaltic one via reactions between the latter and orthopyroxene. 展开更多
关键词 Alkaline basaltic melt ORTHOPYROXENE Melt–mineral reaction high-temperature and high-pressure experiment Genesis of basalt Evolution of lithospheric mantle in the North China Craton
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Reactions between Ti and Ti_3SiC_2 in temperature range of 1 273-1573K 被引量:1
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作者 谷万里 周延春 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2006年第6期1281-1288,共8页
The reactions of Ti3SiC2 and Ti in the temperature range of 1 273?1 573 K under a pressure of 20 MPa were investigated.The results confirm that Ti reacts with Ti3SiC2 above 1 273 K and new phases like TiCx,Ti5Si3 and ... The reactions of Ti3SiC2 and Ti in the temperature range of 1 273?1 573 K under a pressure of 20 MPa were investigated.The results confirm that Ti reacts with Ti3SiC2 above 1 273 K and new phases like TiCx,Ti5Si3 and TiSi2 are identified.The reactions are closely related to temperature and content of Ti3SiC2 in Ti.During the reaction process,Ti3SiC2 decomposes in two different modes.The first is caused by the de-intercalation of Si from it and the TiCx is formed by the remained titanium and carbon;the second is that the carbon is separated from the Ti3SiC2 and reacts with titanium furthermore.The diffusing of silicon is believed to be the determinant ingredient of the reaction. 展开更多
关键词 TI3SIC2 TI high-temperature reaction
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电针督脉及情感区对血管性痴呆大鼠学习记忆能力及炎症的改善作用
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作者 马帅 杨添淞 +1 位作者 张思琪 张淼 《辽宁中医杂志》 CAS 北大核心 2024年第6期192-195,I0010,I0011,共6页
目的通过观察电针督脉及情感区对血管性痴呆(vascular dementia,VD)大鼠学习记忆能力及海马区细胞形态、肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)及转化生长因子-β(transforming growth factor-β,TGF-β)的影响,探讨该疗法... 目的通过观察电针督脉及情感区对血管性痴呆(vascular dementia,VD)大鼠学习记忆能力及海马区细胞形态、肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)及转化生长因子-β(transforming growth factor-β,TGF-β)的影响,探讨该疗法治疗VD的作用机制。方法随机选取24只雄性SD大鼠进行Morris水迷宫测试,通过测试后,按随机数字表法将24只大鼠分为空白组、模型组、假手术组及治疗组,每组6只。其中空白组单纯喂养不行其他处置,模型组及治疗组予双侧颈总动脉永久性结扎(2-VO阻断法)制备模型,假手术组仅暴露颈动脉三角区,并将颈总动脉及迷走神经分离后缝合。于第7日(模型及治疗组侧支循环形成)行Morris水迷宫检测,确定造模成功,第8日进行治疗,治疗组予电针“百会”“风府”“大椎”及“情感区”干预,每次30 min,共治疗2周,其余3组常规饲养2周。治疗后再次对4组大鼠进行Morris水迷宫进行行为学检测,将脑组织取材后行HE染色、免疫组化检测,取大鼠腹主动脉血行ELISA检测,观察大鼠海马组织细胞形态,TNF-α、TGF-β数量的变化及血清中TNF-α、TGF-β含量的表达。结果模型组大鼠与假手术组比较,逃避潜伏期以及游泳路程延长(P<0.05),海马CA1区细胞形态较为均匀,排列较规则,水肿程度减轻,海马体内TNF-α阳性细胞数增多且含量增多,TGF-β阳性细胞数减少且含量降低;治疗组大鼠与模型组比较,逃避潜伏期以及游泳路程缩短(P<0.05),海马CA1区神经元结构相对清晰完整,形态较为规则,排列相对均匀,细胞间质水肿程度低,海马体内TNF-α阳性细胞数减少且含量降低,TGF-β阳性细胞数增加且含量升高。结论电针督脉及情感区能有效改善VD大鼠学习记忆能力,其机制可能与减轻炎症反应相关,但有待进一步研究。 展开更多
关键词 电针 督脉 情感区 炎症反应 学习记忆
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基于经筋理论探讨“绕肩胛”与颈痛伴旋转功能障碍的对应关系
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作者 张思懿 龚智超 +4 位作者 刘磊 陈沁涛 郭艺 李武 李江山 《湖南中医药大学学报》 CAS 2024年第3期445-449,共5页
目的立足于经筋古籍原文,发现“绕肩胛”与手阳明、手太阳经筋相关,并从两条经筋与颈痛伴旋转功能障碍的联系入手,探讨“绕肩胛”相关经筋与颈痛伴旋转功能障碍是否存在对应关系。方法收集20例颈痛伴功能障碍的肩胛区域疼痛志愿者,对肩... 目的立足于经筋古籍原文,发现“绕肩胛”与手阳明、手太阳经筋相关,并从两条经筋与颈痛伴旋转功能障碍的联系入手,探讨“绕肩胛”相关经筋与颈痛伴旋转功能障碍是否存在对应关系。方法收集20例颈痛伴功能障碍的肩胛区域疼痛志愿者,对肩胛区8个阳性反应点进行触诊,根据疼痛部位以及颈部旋转功能障碍的类型,探索二者之间的对应规律。结果10例旋转伴后伸功能受限患者,在肩胛上区出现阳性反应点为9例,符合占比90%;10例旋转伴前屈功能受限患者,在肩胛下区出现阳性反应点为9例,符合占比90%。因而旋转伴后伸功能受限与肩胛上区、旋转伴前屈功能受限与肩胛下区存在对应关系。结论手阳明经筋与旋转伴后伸功能受限、手太阳经筋与旋转伴前屈功能受限存在对应关系。 展开更多
关键词 经筋 颈痛 绕肩胛 阳性反应点 旋转功能障碍 手阳明经筋 手太阳经筋 分布规律
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Fabrication of YAG:Ce^(3+) and YAG:Ce^(3+),Sc^(3+) Phosphors by Spark Plasma Sintering Technique
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作者 周卫新 娄朝刚 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS CSCD 2024年第2期255-260,共6页
In this study,a single-doped phosphors yttrium aluminum garnet(Y_(3)Al_(5)O_(12),YAG):Ce^(3+),single-doped YAG:Sc^(3+),and double-doped phosphors YAG:Ce^(3+),Sc^(3+) were prepared by spark plasma sintering(SPS)(lower ... In this study,a single-doped phosphors yttrium aluminum garnet(Y_(3)Al_(5)O_(12),YAG):Ce^(3+),single-doped YAG:Sc^(3+),and double-doped phosphors YAG:Ce^(3+),Sc^(3+) were prepared by spark plasma sintering(SPS)(lower than 1 200℃).The characteristics of synthesized phosphors were determined using scanning electron microscopy(SEM),X-ray diffraction(XRD),and fluorescence spectroscopy.During SPS,the lattice structure of YAG was maintained by the added Ce^(3+) and Sc^(3+).The emission wavelength of YAG:Ce^(3+) prepared from SPS(425-700 nm) was wider compared to that of YAG:Ce^(3+) prepared from high-temperature solid-state reaction(HSSR)(500-700 nm).The incorporation of low-dose Sc^(3+) in YAG:Ce^(3+) moved the emission peak towards the short wavelength. 展开更多
关键词 high-temperature solid-state reaction spark plasma sintering yttrium aluminum garnet PHOSPHORS
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A novel profile modification HPF-Co gel satisfied with fractured low permeability reservoirs in high temperature and high salinity
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作者 Ya-Kai Li Ji-Rui Hou +6 位作者 Wei-Peng Wu Ming Qu Tuo Liang Wei-Xin Zhong Yu-Chen Wen Hai-Tong Sun Yi-Nuo Pan 《Petroleum Science》 SCIE EI CAS CSCD 2024年第1期683-693,共11页
Conformance control and water plugging are a widely used EOR method in mature oilfields.However,majority of conformance control and water plugging agents are unavoidable dehydrated situation in high-temperature and hi... Conformance control and water plugging are a widely used EOR method in mature oilfields.However,majority of conformance control and water plugging agents are unavoidable dehydrated situation in high-temperature and high-salinity low permeability reservoirs.Consequently,a novel conformance control system HPF-Co gel,based on high-temperature stabilizer(CoCl_(2)·H_(2)O,CCH)is developed.The HPF-Co bulk gel has better performances with high temperature(120℃)and high salinity(1×10^(5)mg/L).According to Sydansk coding system,the gel strength of HPF-Co with CCH is increased to code G.The dehydration rate of HPF-Co gel is 32.0%after aging for 150 d at 120℃,showing excellent thermal stability.The rheological properties of HPF gel and HPF-Co gel are also studied.The results show that the storage modulus(G′)of HPF-Co gel is always greater than that of HPF gel.The effect of CCH on the microstructure of the gel is studied.The results show that the HPF-Co gel with CCH has a denser gel network,and the diameter of the three-dimensional network skeleton is 1.5-3.5μm.After 90 d of aging,HPF-Co gel still has a good three-dimensional structure.Infrared spectroscopy results show that CCH forms coordination bonds with N and O atoms in the gel amide group,which can suppress the vibration of cross-linked sites and improve the stability at high temperature.Fractured core plugging test determines the optimized polymer gel injection strategy and injection velocity with HPF-Co bulk gel system,plugging rate exceeding 98%.Moreover,the results of subsequent waterflooding recovery can be improved by 17%. 展开更多
关键词 Low permeability reservoir high-temperature resistant gel Complexation reaction Polymer gel injection strategy Plugging rate Enhanced oil recovery
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Steric Hindrance Effect in High-Temperature Reactions 被引量:1
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作者 Xiongzhi Zeng Zongyang Qiu +2 位作者 Pai Li Zhenyu Li Jinlong Yang 《CCS Chemistry》 CAS 2020年第6期460-467,共8页
High-temperature reactions widely exist in nature.However,they are difficult to characterize either experimentally or computationally.The minimum energy path(MEP)model routinely used in computational modeling of chemi... High-temperature reactions widely exist in nature.However,they are difficult to characterize either experimentally or computationally.The minimum energy path(MEP)model routinely used in computational modeling of chemical reactions is not justified to describe high-temperature reactions since high-energy structures are actively involved at high temperatures.In this study,we used methane(CH4)decomposition on Cu(111)surface as an example to compare systematically results obtained from the MEP model with those obtained from an explicit sampling of all relevant structures via ab initio molecular dynamics(AIMD)simulations at different temperatures.Interestingly,we found that,for reactions protected by strong steric hindrance effects,the MEP was still followed effectively even at a temperature close to the Cu melting point.In contrast,without such protection,the flexibility of the surface Cu atoms could lead to a significant reduction of the free-energy barrier at a high temperature.Accordingly,some earlier conclusions made about graphene growth mechanisms based on MEP calculations should be revisited.The physical insights provided by this study could deepen our understanding of high-temperature surface reactions. 展开更多
关键词 high-temperature reaction ab initio molecular dynamics minimum energy path free energy steric hindrance graphene growth
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基于子午流注理论的吴茱萸穴位贴敷防治化疗所致胃肠道反应的临床观察
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作者 黄丽英 晏小艳 龚根秀 《黑龙江医学》 2024年第18期2233-2235,共3页
目的:探究基于子午流注理论的吴茱萸穴位贴敷防治化疗致胃肠道反应的临床效果。方法:选取2021年1月—2023年1月新余市中医院收治的60例结直肠癌化疗患者作为研究对象,按随机数表法将其分为两组,每组各30例。对照组采用西医疗法治疗,观... 目的:探究基于子午流注理论的吴茱萸穴位贴敷防治化疗致胃肠道反应的临床效果。方法:选取2021年1月—2023年1月新余市中医院收治的60例结直肠癌化疗患者作为研究对象,按随机数表法将其分为两组,每组各30例。对照组采用西医疗法治疗,观察组采取基于子午流注理论的吴茱萸穴位贴敷疗法。比较两组患者临床疗效、中医证候积分、胃肠道反应发生率、住院时长、不良反应发生情况。结果:观察组患者总有效控制率高于对照组,差异有统计学意义(χ^(2)=9.320,P<0.05)。化疗结束1周,两组患者中医证候积分较治疗前低,观察组较对照组低,差异有统计学意义(t=14.119,P<0.05)。观察组呕吐、恶心、腹泻、腹胀、呃逆发生率、不良反应发生率低于对照组,差异有统计学意义(χ^(2)=6.944、9.643、4.320、7.680、5.934、4.320,P<0.05)。观察组患者住院时间短于对照组,差异有统计学意义(t=13.981,P<0.05)。结论:基于子午流注理论的吴茱萸穴位贴敷防治化疗所致胃肠道反应的效果显著,可减轻患者病症,降低胃肠道反应及不良反应发生率,缩短住院时间。 展开更多
关键词 化疗 子午流注理论 吴茱萸 穴位贴敷 胃肠道反应 不良反应
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督脉灸刺联合血府逐瘀汤治疗脑梗死气虚血瘀证的效果
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作者 杨秋波 张洁 《反射疗法与康复医学》 2024年第18期36-39,共4页
目的分析督脉灸刺联合血府逐瘀汤治疗脑梗死气虚血瘀证的效果。方法选取2021年8月—2022年8月威海市文登区中西医结合医院收治的118例脑梗死气虚血瘀证患者为研究对象,按照随机数字表法将其分为对照组和观察组,每组59例。对照组采用常... 目的分析督脉灸刺联合血府逐瘀汤治疗脑梗死气虚血瘀证的效果。方法选取2021年8月—2022年8月威海市文登区中西医结合医院收治的118例脑梗死气虚血瘀证患者为研究对象,按照随机数字表法将其分为对照组和观察组,每组59例。对照组采用常规西医治疗,观察组在对照组基础上采用督脉灸刺联合血府逐瘀汤治疗。对比两组患者的治疗效果、神经功能、运动功能、血液流变学指标、脑血流动力学指标及安全性。结果观察组的治疗总有效率为96.61%,高于对照组的84.75%,差异有统计学意义(P<0.05)。治疗后,观察组的全血低切粘度、全血高切粘度、红细胞压积均低于对照组,组间差异有统计学意义(P<0.05);观察组的美国国立卫生研究院卒中量表评分低于对照组,简式Fugl-Meyer运动功能评定量表评分高于对照组,组间差异有统计学意义(P<0.05);观察组的大脑前动脉、大脑中动脉、大脑后动脉平均血流速度均快于对照组,组间差异有统计学意义(P<0.05)。两组的不良反应发生率比较,差异无统计学意义(P>0.05)。结论督脉灸刺联合血府逐瘀汤可减轻脑梗死气虚血瘀证患者的神经损伤,改善其肢体运动功能,调节血液流变学、脑血流动力学,且不会增加不良反应。 展开更多
关键词 脑梗死 督脉灸刺 血府逐瘀汤 不良反应 神经功能
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穴位病理反应与脏腑经络相关研究概况 被引量:13
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作者 张夏毅 张天生 +1 位作者 王海军 冀来喜 《针刺研究》 CAS CSCD 2007年第5期355-358,共4页
本文从穴位病理反应与脏腑经络相关的相对规律性、现代临床应用及其机制研究等方面进行了探讨,总结了穴位病理反应与脏腑经络相关的相对特异性,并提出穴位病理反应与脏腑经络相关研究中现存不足之处和今后的研究方向。
关键词 穴位病理反应 脏腑经络 相互关系 临床应用
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针刺督脉穴为主对急性脑梗死患者血清CRP的影响 被引量:13
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作者 葛成慧 忽浩杰 +1 位作者 朱广旗 吴远华 《针灸临床杂志》 2009年第3期1-3,共3页
目的:观察针刺督脉穴为主对急性脑梗死患者血清中C反应蛋白(CRP)的影响。方法:将80例急性脑梗死患者随机分为针刺督脉组(A组)、传统针刺组(B组)、单纯药物组(C组),采用免疫比浊法进行治疗前后的血清CRP测定及神经功能缺损评分。结果:3... 目的:观察针刺督脉穴为主对急性脑梗死患者血清中C反应蛋白(CRP)的影响。方法:将80例急性脑梗死患者随机分为针刺督脉组(A组)、传统针刺组(B组)、单纯药物组(C组),采用免疫比浊法进行治疗前后的血清CRP测定及神经功能缺损评分。结果:3组治疗后神经功能缺损评分和CRP含量均有减少,与自身治疗前比较差异有统计学意义(P<0.01),A组、B组治疗后与C组比较差异有统计学意义(P<0.01,P<0.05),其中A组与B组比较差异有统计学意义(P<0.05)。结论:针刺督脉穴为主可以明显降低急性脑梗死患者血清CRP水平,有利于减轻炎症反应,改善神经功能缺损程度。 展开更多
关键词 脑梗死 针刺疗法 督脉 C反应蛋白 神经功能缺损评分
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家兔胆囊炎模型腹部循胆经高温反应与NE、5-HT、E含量变化的观察 被引量:1
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作者 罗明富 郭莹 +2 位作者 张栋 马惠敏 王淑友 《中国中医基础医学杂志》 CAS CSCD 北大核心 2010年第10期895-896,共2页
目的:研究兔胆囊炎模型循经高温反应与NE、E、5-HT含量的相关性。方法:健康家兔分为对照组和模型组。胆囊炎造模后,沿胆经腹段做体表红外热像观察。取2组胆经腹段部位组织做酶联免疫法检测NE、E、5-HT含量。结果:模型组循经高温反应部位... 目的:研究兔胆囊炎模型循经高温反应与NE、E、5-HT含量的相关性。方法:健康家兔分为对照组和模型组。胆囊炎造模后,沿胆经腹段做体表红外热像观察。取2组胆经腹段部位组织做酶联免疫法检测NE、E、5-HT含量。结果:模型组循经高温反应部位的NE、5-HT含量明显高于对照组,有显著性差异(P<0.05)。结论:NE、5-HT与循胆经高温反应有一定相关性。 展开更多
关键词 循经高温反应 胆囊炎 去甲肾上腺素 5-HT
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益肾通督合剂结合督脉灸对强直性脊柱炎患者疗效及腰椎功能、免疫功能的影响 被引量:14
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作者 侯堃 张秦 +6 位作者 邵培培 施阳 马丛 温博 顾文 曲昆 王北 《辽宁中医杂志》 CAS 2022年第1期146-149,共4页
目的探究益肾通督合剂结合督脉灸对强直性脊柱炎患者疗效、腰椎功能、免疫功能的影响。方法研究纳入79例强直性脊柱炎患者,均由医院2019年1月—2019年12月收治,采取随机数字表法将其分为两组,对照组患者(39例)常规西医疗法,观察组患者(4... 目的探究益肾通督合剂结合督脉灸对强直性脊柱炎患者疗效、腰椎功能、免疫功能的影响。方法研究纳入79例强直性脊柱炎患者,均由医院2019年1月—2019年12月收治,采取随机数字表法将其分为两组,对照组患者(39例)常规西医疗法,观察组患者(40例)在对照组治疗基础上联合益肾通督合剂结合督脉灸治疗,比较两组患者临床疗效、治疗前后中医症状(颈腰臀背疼痛、怕风怕冷、四肢不温、疲倦乏力、晨僵等)积分变化、治疗前后患者巴氏病情活动指数(BASDAI)及巴氏功能活动指数(BASFI)变化、治疗前后患者血沉(ESR)、C反应蛋白(CRP)、白细胞介素-6(IL-6)、肿瘤坏死因子α(TNF-α)水平变化、治疗前后T细胞亚群指标变化、不良反应。结果观察组患者治疗总有效率(97.50%,39/40)高于对照组(82.05%,32/39),P<0.05;治疗前,两组患者颈腰臀背疼痛、怕风怕冷、四肢不温、疲倦乏力、晨僵中医症状积分、BASDAI指数评分及BASFI指数评分、ESR、CRP、IL-6、TNF-α、CD4^(+)、CD8^(+)、CD4^(+)/CD8^(+)等T细胞亚群指标比较,P>0.05,治疗后各组患者颈腰臀背疼痛、怕风怕冷、四肢不温、疲倦乏力、晨僵中医症状积分、BASDAI指数评分及BASFI指数评分、ESR、CRP、IL-6、TNF-α、CD4^(+)、CD8^(+)、CD4^(+)/CD8^(+)等T细胞亚群指标均改善,观察组患者治疗后颈腰臀背疼痛、怕风怕冷、四肢不温、疲倦乏力、晨僵中医症状积分、BASDAI指数评分及BASFI指数评分、ESR、CRP、IL-6、TNF-α、CD4^(+)、CD8^(+)、CD4^(+)/CD8^(+)等T细胞亚群指标均优于对照组,P<0.05;观察组治疗不良反应率0.00%(0/40)低于对照组15.38%(6/39),P<0.05。结论益肾通督合剂结合督脉灸治疗强直性脊柱炎临床疗效显著,患者症状改善,腰椎功能恢复好,免疫功能提升,不良反应率低,安全可靠,值得应用。 展开更多
关键词 强直性脊柱炎 益肾通督合剂 督脉灸 疗效 腰椎功能 免疫功能 不良反应
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益气活血通络法治疗糖尿病周围神经病变Meta分析 被引量:7
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作者 张美珍 郝晓晖 +4 位作者 李晓文 杨亚男 李艳杰 刘旭菲 倪青 《世界中医药》 CAS 2021年第5期708-716,720,共10页
目的:系统评价益气活血通络法治疗糖尿病周围神经病变的有效性。方法:检索CNKI、万方、VIP、CBM、Cochrane library、EMbase、PubMed、ClinicalTrails.gov等数据库,查找所有比较益气活血通络中药或联合西药治疗糖尿病周围神经病变的随... 目的:系统评价益气活血通络法治疗糖尿病周围神经病变的有效性。方法:检索CNKI、万方、VIP、CBM、Cochrane library、EMbase、PubMed、ClinicalTrails.gov等数据库,查找所有比较益气活血通络中药或联合西药治疗糖尿病周围神经病变的随机对照试验。利用RevMan 5.3软件进行统计分析、Risk of Bias(ROB)表进行质量评价。结果:共纳入23篇随机对照试验,包括1608例患者。纳入文献的方法学质量较低。采用益气活血通络法治疗糖尿病周围神经病变,能够明显提高临床总有效率(RR=0.30,95%CI为0.24~0.36,P<0.00001)和降低Toronto积分(MD=-1.35,95%CI为-1.57~-1.13,P<0.00001),可显著提高正中神经MCV(MD=3.45,95%CI为2.45~4.45,P<0.00001)、SCV(MD=3.27,95%CI为2.10~4.44,P<0.00001)和腓总神经MCV(MD=2.99,95%CI为2.00~3.98,P<0.00001)、SCV(MD=3.43,95%CI为2.02~4.84,P<0.00001)的传导速度,降低全血高切度(MD=-0.72,95%CI为-0.98~-0.46,P<0.00001)和低切度(MD=-1.52,95%CI为-2.82~-0.21,P=0.02)水平。观察组治愈时间优于对照组(RR=1.71,95%CI为1.49~1.97,P<0.00001),差异有统计学意义。23篇RCTs中19篇研究明确无不良反应发生,4项研究说明有不良反应发生,无严重不良事件发生。结论:益气活血通络法治疗糖尿病周围神经病变,可提高疗效,降低Toronto积分,改善代谢紊乱症状和血流变。因纳入研究的文献质量较低,影响疗效的可靠性,今后还需高质量的随机对照试验加以证实。 展开更多
关键词 益气活血通络 糖尿病周围神经病变 随机对照试验 META分析 有效率 中医药:神经传导速度 不良反应
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刺激承山穴引起循膀胱经的神经源性炎症反应 被引量:1
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作者 郭进 江赛男 +1 位作者 牛汉璋 单天民 《陕西师大学报(自然科学版)》 CSCD 北大核心 1998年第3期78-81,共4页
实验使用大白鼠,由颈静脉注射Evans蓝溶液,同心针电极刺激承山穴,照像记录皮肤Evans蓝的渗出,测定皮肤、内脏Evans蓝含量(n=12).实验证明,在刺激侧爪外侧缘,小腿和大腿背侧,腰骶椎及胸椎皮肤出现沿足太阳... 实验使用大白鼠,由颈静脉注射Evans蓝溶液,同心针电极刺激承山穴,照像记录皮肤Evans蓝的渗出,测定皮肤、内脏Evans蓝含量(n=12).实验证明,在刺激侧爪外侧缘,小腿和大腿背侧,腰骶椎及胸椎皮肤出现沿足太阳膀胱经循行的、点状形式的蓝线反应,对侧小腿及大腿对称部位也有少量蓝点渗出.结果呈现具特征性的沿躯体纵向的点状蓝反应,点连线与足太阳膀胱经循行吻合.这些部位皮肤Evans蓝含量与其周围皮肤有显著性差异(P<0.05).膀胱和卵巢(睾丸)也出现蓝色渗出,与空肠和降结肠相比Evans蓝含量也有显著性差异(P<0.05).结果表明,神经源性炎症反应可作为经脉显示的标志,电针刺激穴位可引起特定经脉的呈现,证明了经脉的存在,并有其神经生理学基础.实验还证明经脉与有关脏腑的相关. 展开更多
关键词 承山穴 经脉 轴突反射 神经源性炎症 膀胱经
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