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《木兰诗》中的“虚数”和“虚位”
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《现代语文(初中版)》 2003年第12期24-24,共1页
关键词 《木兰诗》 “虚数” “虚位” 用法 古汉语 初中 语文 阅读指导
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“虚位”是标点符号吗
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作者 卢旭沈 《阅读与写作》 2005年第10期25-25,共1页
关键词 “虚位” 标点符号 语句结构 用法 汉语
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曾子思想新释
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作者 葛荣晋 《新视野》 CSSCI 2004年第1期64-66,共3页
文章以曾子的“三贵之道”为题,阐释了做人应当注重或具备的仪表、言行和语气等行为规范;以“思不出其位”为题,着重分析了现代管理学中的“虚位”、“越位”、和“错位”等现象。
关键词 曾子 行为规范 现代管理学 “虚位”现象 “越位”现象 “错位”现象
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一起220kVGIS母联三相不平衡电流的缺陷诊断分析 被引量:1
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作者 张繁 伍国兴 彭业 《广东电力》 2013年第6期30-33,共4页
通过对负荷电流分布情况进行分析,配合直流电阻试验,准确查找出一起220 kV气体绝缘全封闭组合电器(gas insulated switchgear,GIS)母线内部三相不平衡电流的故障位置,最大限度地减小了检修停电范围,缩短了作业时间,避免了缺陷进一步恶... 通过对负荷电流分布情况进行分析,配合直流电阻试验,准确查找出一起220 kV气体绝缘全封闭组合电器(gas insulated switchgear,GIS)母线内部三相不平衡电流的故障位置,最大限度地减小了检修停电范围,缩短了作业时间,避免了缺陷进一步恶化引发电网事故的风险。对缺陷原因进行深入分析,找出最终缺陷源,彻底清除故障,并对GIS导电杆的安装工艺提出了科学的要求。 展开更多
关键词 不平衡电流 直流电阻 对接头 “虚位”
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《现代汉语词典》的条目排序问题
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作者 陈玉庆 《辞书研究》 2022年第6期86-95,共10页
《现代汉语词典》在词典编纂的各方面树立了标杆,堪称现代汉语词典的“典范”。文章在对《现代汉语词典》的排序原则进行梳理,指出《现代汉语词典》在条目排序方面仍存在一些问题。尤其是轻声和儿化条目的处理,后来的版本因对排序原则... 《现代汉语词典》在词典编纂的各方面树立了标杆,堪称现代汉语词典的“典范”。文章在对《现代汉语词典》的排序原则进行梳理,指出《现代汉语词典》在条目排序方面仍存在一些问题。尤其是轻声和儿化条目的处理,后来的版本因对排序原则理解有偏差,导致一些条目排序处理不当。故排序原则仍可进一步探讨。 展开更多
关键词 排序法 条目排序 “虚位”原则
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Iris image Segmentation Based on Phase Congruency 被引量:1
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作者 GAO Chao JIANG Da-qin Guo Yong-cai 《Optoelectronics Letters》 EI 2006年第5期386-388,共3页
Iris image segmentation is very important for an iris recognition system.There are always iris noises as eyelash,eyelid,reflection and pupil in iris images.The paper proposes a virtual method of segmentation.By locati... Iris image segmentation is very important for an iris recognition system.There are always iris noises as eyelash,eyelid,reflection and pupil in iris images.The paper proposes a virtual method of segmentation.By locating and normalizing iris images with Gabor filter,we can acquire information of image texture in a series of frequencies and orientations.Iris noise regions are determined based on phase congruency by a group of Gabor filters whose kernels are suitable for edge detection.These regions are filled according to the characteristics of iris noise.The experimental results show that the proposed method can segment iris images effectively. 展开更多
关键词 图像分割 相位 虚拟技术 滤波器
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Structure of Some 4f Rare Earth Liquid Metals --A Charged Hard Sphere Approach
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作者 P.B. Thakor P.N. Gajjar A.R. Jani 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第2X期337-342,共6页
A well-established pseodopotential is used to study the structure of some 4f rare earth liquid metals (Ce, Pr, Eu, Gd, Tb, and Yb). The structure factor S(q), pair distribution function g(r), interatomic distanc... A well-established pseodopotential is used to study the structure of some 4f rare earth liquid metals (Ce, Pr, Eu, Gd, Tb, and Yb). The structure factor S(q), pair distribution function g(r), interatomic distance r1, and coordination number n1 are calculated using Charged Hard Sphere (CHS) reference system. To introduce the exchange and correlation effects, the local field correction due to Sarkar et al. (S) is applied. The present investigation is successful in generating the structural information of Ce, Pr, Eu, Gd, Tb, and Yb 4f rare earth liquid metals. 展开更多
关键词 PSEUDOPOTENTIAL structure factor pair distribution function interatomic distance
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On the Generation Algorithm of VRS Virtual Observations 被引量:3
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作者 WEI Erhu CHAI Hua +1 位作者 LIU Jingnan AN Zhiguo 《Geo-Spatial Information Science》 2007年第2期91-95,共5页
In the past few years, network RTK positioning technology, especially the VRS technology, has been widely used in some parts of China and in many countries around the world. The principle of the VRS technology is disc... In the past few years, network RTK positioning technology, especially the VRS technology, has been widely used in some parts of China and in many countries around the world. The principle of the VRS technology is discussed with corresponding formula deduction, and detailed descriptions and applications of VRS corrections and virtual observations generation algorithm are given. 展开更多
关键词 network-RTK MRS corrections generation algorithm virtual observation
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Precise perception of virtual object position in real world 被引量:1
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作者 林理平 《High Technology Letters》 EI CAS 2009年第3期255-260,共6页
There is a deviation between actual and theoretical perceived positions of virtual object in stereoscop-ic display.Therefore,methods for precise position perception in real world are proposed in this paper.The causes ... There is a deviation between actual and theoretical perceived positions of virtual object in stereoscop-ic display.Therefore,methods for precise position perception in real world are proposed in this paper.The causes for the deviation are analyzed on the basis of geometrical optics .Then deviation correctionsare performed by error compensation with mathematic method and by remodeling virtual viewpoint dynami-cally with the movement of physical viewpoint.Experimental results show that these methods can reducethe position deviation to less than 10 millimeter,meeting the requirements for direct manipulation in mul-ti-sensory virtual environment. 展开更多
关键词 virtual reality position perception stereoscopic display head tracking
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Elements and Experiments of Shenzhen Continuous Operating Reference Stations (SZCORS) System 被引量:3
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作者 LUOHeping SHIXiaoyan LIUHui 《Geo-Spatial Information Science》 2005年第1期19-22,共4页
Real-time kinematic GPS precise positioning has been playing an increasing role in both surveying and navigation. Based on the city’s fibre LAN network, Shenzhen Continuous Operating Reference Stations (SZCORS) syste... Real-time kinematic GPS precise positioning has been playing an increasing role in both surveying and navigation. Based on the city’s fibre LAN network, Shenzhen Continuous Operating Reference Stations (SZCORS) system has been established and consists of GPS reference stations, system control center, user’s data center, and real-time datacom network. The SZCORS system provides users the real-time centimeter positioning or post-processing millimeter positioning. This paper makes discussion on the structure of SZCORS system. Some experiments have been made to test the usablity, and then the data has been analyzed. 展开更多
关键词 GPS continuous operating reference stations system virtual referencestation(VRS)
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A method of key positioning based on laser virtual keyboard 被引量:1
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作者 GAO Xiang ZHANG Xiao-jing 《Journal of Measurement Science and Instrumentation》 CAS 2014年第2期27-30,共4页
The paper puts forward a method of virtual keyboard key positioning based on infrared laser reflection and image processing technology. In this paper, the positioning principle is introduced first. And the experimenta... The paper puts forward a method of virtual keyboard key positioning based on infrared laser reflection and image processing technology. In this paper, the positioning principle is introduced first. And the experimental system is established based on image acquisition, image transformation, threshold selection and binarization processing and identification of key placement. Tested in the indoor environment, the method can achieve characters input efficiently and accurately. And the key positioning has high accuracy, validity and reliability. So the method which has a high practical value provides a good theoretical basis for design of virtual keyboard application. 展开更多
关键词 POSITIONING laser virtual keyboard image processing infrared laser reflection THRESHOLD BINARIZATION
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Virtual Reality Simulation of Fuzzy-logic Control during Underwater Dynamic Positioning 被引量:4
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作者 Midhin Das Thekkedan Cheng Siong Chin Wai Lok Woo 《Journal of Marine Science and Application》 CSCD 2015年第1期14-24,共11页
In this paper, graphical-user-interface (GUI) software for simulation and fuzzy-logic control of a remotely operated vehicle (ROV) using MATLABTM GUI Designing Environment is proposed. The proposed ROV's GUI plat... In this paper, graphical-user-interface (GUI) software for simulation and fuzzy-logic control of a remotely operated vehicle (ROV) using MATLABTM GUI Designing Environment is proposed. The proposed ROV's GUI platform allows the controller such as fuzzy-logic control systems design to be compared with other controllers such as proportional-integral-derivative (PID) and sliding-mode controller (SMC) systematically and interactively. External disturbance such as sea current can he added to improve the modelling in actual underwater environment. The simulated results showed the position responses of the fuzzy-logic control exhibit reasonable performance under the sea current disturbance. 展开更多
关键词 graphical-user-interface (GUI) fuzzy-logic control remotely operated vehicle (ROV) proportional-integral-derivative (PID) sliding-mode controller (SMC) underwater dynamic positioning
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3D-FSM·DDM IBEM numerical system of multi-medium
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作者 秦忠诚 刘承论 +1 位作者 赵迁乔 赵祉业 《Journal of Coal Science & Engineering(China)》 2007年第3期366-369,共4页
Based on the idea of the developed 3D-FSM.DDM boundary element method, the field with muti-medium was formulized firstly, then connected at the interface of two fields according to the continuous conditions of stress ... Based on the idea of the developed 3D-FSM.DDM boundary element method, the field with muti-medium was formulized firstly, then connected at the interface of two fields according to the continuous conditions of stress and displacement, after that, a boundary value problem with unified model was formed and solved. Ultimately, an applied numerical simulation system was developed. It was compared with the model having analytical solution for verifying the applicability and the calculating precision. 展开更多
关键词 multi-medium fictitious stress method (FSM) displacement discontinuity method (DDM) indirect boundary element method (IBEM) numerical simulation system
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Dental Arch3D Direct Detection System from the Patient's Mouth and Robot for Implant Positioning
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作者 Paola Nudo Michele Perrelli +4 位作者 Mario Donnici Guido Danieli Francesco Inchingolo Francesco Giuzio Massimo Marrelli 《Journal of Mechanics Engineering and Automation》 2011年第5期331-341,共11页
This paper describes a three-dimensional structured light scanning system to generate a virtual model of a dental arch, from the patient's mouth, and the scheme ofa 2 + 1 DOF (degree of freedom) parallel/serial Ro... This paper describes a three-dimensional structured light scanning system to generate a virtual model of a dental arch, from the patient's mouth, and the scheme ofa 2 + 1 DOF (degree of freedom) parallel/serial Robot for implant positioning, both positioned on a platform held in a fixed position with respect to the patient's head. Presently, dental prosthesization requires quite a long time to be completed. This process, in fact, involves the detection of the shape of the dental arch, its plaster model generation, scanning of it, prosthesis preparation and its implant. The procedur'e is even longer when use of dental implants is required, while early loading of the implants is considered a positive solution. Current research effort is focused on the development of devices for the direct intra-oral determination of the shape of dental prostheses and inserts. These devices, however, are able to detect limited portions of the dental arch, since they must be hand-held by the doctor without external supports, and this may produce relatively large errors due to the sum of relatively small ones. Furthermore, to place an implant correctly, the doctor can use a new system to guide the implant position, but this requires sending the information in Sweden to obtain a special mask in return. 展开更多
关键词 Calibration STEREOVISION structured light.
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新常态下高职院校党建与思政教育工作协同创新的对策 被引量:1
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作者 杨继伟 《新丝路(中旬)》 2019年第1期0030-0031,共2页
新常态由第四十届达沃斯论坛提出至今,已经不仅是对经济政治形态的描述,逐步延伸到不同的社会领域。现阶段,高职院校的党建与思政教育工作也逐步迈入了新常态阶段,呈现出了新时期高职院校政治建设发展的鲜明特征。现阶段,新常态影响下... 新常态由第四十届达沃斯论坛提出至今,已经不仅是对经济政治形态的描述,逐步延伸到不同的社会领域。现阶段,高职院校的党建与思政教育工作也逐步迈入了新常态阶段,呈现出了新时期高职院校政治建设发展的鲜明特征。现阶段,新常态影响下的党建与思 政工作面临着形式主义、管理“虚位”,以及工作模式陈旧等问题。针对该种情况,本文从党组织建设与思想政治教育工作的发展现状出发,对提升党建质量与增强思政教育教学成果创新途径进行探究。 展开更多
关键词 党建 思政教育工作 管理“虚位” 协同育人
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Abnormality diagnosis of cracks in the concrete based on double crack tip opening displacement criterion 被引量:5
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作者 LI ZhanChao GU ChongShi WU ZhongRu 《Science China(Technological Sciences)》 SCIE EI CAS 2013年第8期1915-1928,共14页
The distinct characteristic of subcritical propagation requires at least two control parameters to completely express expansion of cracks in the concrete.The basic definition of crack tip opening displacement(CTOD)is ... The distinct characteristic of subcritical propagation requires at least two control parameters to completely express expansion of cracks in the concrete.The basic definition of crack tip opening displacement(CTOD)is corrected based on the monitored variable of crack mouth opening displacement(CMOD).The improved CTOD criterion,called the double CTODd criterion,for the abnormality diagnosis of cracks in the concrete is constructed based on the fictitious crack model and linear asymptotic superposition assumptions of the concrete.The double CTODd criterion is verified using two specimens of three-point bending notched beam.The verification results are reasonable and correct.The establishment of the double CTODd criterion lays a solid theoretical foundation for the abnormality diagnosis of cracks in concrete structures(such as concrete dams)based on CMOD. 展开更多
关键词 CONCRETE cracks abnormality diagnosis double CTODd criterion
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Virtual-photon-induced entanglement with two nitrogen-vacancy centers coupled to a high-Q silica microsphere cavity 被引量:3
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作者 LIU YiMin 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2013年第11期2138-2142,共5页
We propose a potentially practical scheme for efcient generation of entanglement with two nitrogen-vacancy centers(NVC)coupled to a whispering-gallery mode cavity.By virtue of the virtual-photon-excitation,the entangl... We propose a potentially practical scheme for efcient generation of entanglement with two nitrogen-vacancy centers(NVC)coupled to a whispering-gallery mode cavity.By virtue of the virtual-photon-excitation,the entanglement with two separate NVC can be produced in a deterministic way.The required operations are very close to the capabilities of current experimental techniques.The efects of decoherence induced by the cavity decay and the atomic spontaneous decay are also investigated. 展开更多
关键词 ENTANGLEMENT nitrogen-vacancy center cavity QED
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Flocking in Multi-Agent Systems with Multiple Virtual Leaders Based Only on Position Measurements 被引量:4
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作者 苏厚胜 《Communications in Theoretical Physics》 SCIE CAS CSCD 2012年第5期801-807,共7页
Most existing flocking algorithms assume one single virtual leader and rely on information on both relative positions and relative velocities among neighboring agents.In this paper,the problem of controlling a flock o... Most existing flocking algorithms assume one single virtual leader and rely on information on both relative positions and relative velocities among neighboring agents.In this paper,the problem of controlling a flock of mobile autonomous agents to follow multiple virtual leaders is investigated by using only position information in the sense that agents with the same virtual leader asymptotically attain the same velocity and track the corresponding virtual leader based on only position measurements.A flocking algorithm is proposed under which every agent asymptotically attains its desired velocity,collision between agents can be avoided,and the final tight formation minimizes all agents' global potentials.A simulation example is presented to verify and illustrate the theoretical results. 展开更多
关键词 distributed control FLOCKING multi-agent system multiple virtual leaders
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Warm needling moxibustion versus electroacupuncture for simple obesity due to yang deficiency of the spleen and kidney: a controlled clinical trial 被引量:6
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作者 Zhou Li-yan He Tian-feng +7 位作者 Chu Xiao-yan Song Yin-hua Bing Xing-hong Ding Jin-lei Duan Xi-dong Luo Yong-bao Shi Yin Tao Shan-ping 《Journal of Acupuncture and Tuina Science》 CSCD 2019年第4期258-263,共6页
Objective: To compare the therapeutic efficacy between warm needling moxibustion and electroacupuncture (EA) in the treatment of simple obesity due to yang deficiency of the spleen and kidney. Methods: Seventy patient... Objective: To compare the therapeutic efficacy between warm needling moxibustion and electroacupuncture (EA) in the treatment of simple obesity due to yang deficiency of the spleen and kidney. Methods: Seventy patients with simple obesity due to yang deficiency of the spleen and kidney were randomly divided into a warm needling moxibustion group and an EA group, with 35 subjects in each group. Same major acupoints were selected for the two groups, including Shuifen (CV 9), Guanyuan (CV 4), Daheng (SP 15), Shuidao (ST 28), Shousanli (LI 10), Zusanli (ST 36), Sanyinjiao (SP 6) and Taixi (KI 3). The warm needling moxibustion group received warm needling moxibustion, while the EA group received EA treatment. The interventions were performed once every other day, with 15 treatments as one course. The therapeutic efficacy, body weight and body mass index (BMI) were then observed and compared. Results: The total effective rate in the warm needling moxibustion group was 85.7% versus 77.1% in the EA group, and the between-group difference was statistically significant (P<0.05). The warm needling moxibustion was remarkably superior to the EA in weight loss and lowering BMI, both with statistical significance (P<0.05, P<0.01). At the three-month follow-up, the body weight and BMI further decreased in the warm needling moxibustion group (both P<0.05), and the levels were lower than those in the EA group (P<0.05, P<0.01). Conclusion: Warm needling moxibustion can produce reliable and consistent efficacy in the treatment of simple obesity due to yang deficiency of the spleen and kidney. Compared with EA, warm needling moxibustion shows advantage in both short-term and long-term efficacies, and thus is worth promotion in clinical practice. 展开更多
关键词 Acupuncture Therapy Warm Needling Therapy ELECTROACUPUNCTURE Points Lower Extremities Points Chest & Abdomen Obesity Yang Deficiency of the Spleen and Kidney
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Effects of different doses of ginger-partitioned moxibustion on trefoil factor 1,mucin 5AC and epidermal growth factor receptor in rats with spleen deficiency syndrome 被引量:6
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作者 贲定严 宁炯杰 +5 位作者 徐寅 罗燕 李木清 王云辉 易展 杨燕萍(译) 《Journal of Acupuncture and Tuina Science》 CSCD 2018年第1期1-7,共7页
To observe the effects of different doses of ginger-partitioned moxibustion on serum trefoil factor 1 (TFF1) and mucin 5AC (MUCSAC) levels, as well as the expression of epidermal growth factor receptor (EGFR) in... To observe the effects of different doses of ginger-partitioned moxibustion on serum trefoil factor 1 (TFF1) and mucin 5AC (MUCSAC) levels, as well as the expression of epidermal growth factor receptor (EGFR) in gastric mucosa of rats with spleen deficiency syndrome, therefore, to explore the possible mechanism and the dose-effect characteristics of ginger-partitioned moxibustion in spleen deficiency syndrome. Methods: Seventy-five SPF grade Sprague-Dawley (SO) rats were randomly divided into a blank control group (group A), a model group (group B), a 3 moxa-cone ginger-partitioned moxibustion group (group C1), a 6 moxa-cone ginger-partitioned moxibustion group (group C2) and a 9 moxa-cone ginger-partitioned moxibustion group (group C3) using random number table method, 15 rats in each group. Except group A, rats in the other groups received intragastric administration of 4 ~C 200% concentrated Da Huang (Radix et RhizomaRhei) to prepare spleen deficiency syndrome model. After successful modeling, rats in group B received no treatment; rats in group C1, C2 and C3 were treated with 3, 6 and 9 moxa-cone ginger-partitioned moxibustion at Zusanli (ST 36)and Zhongwan (CV 12) respectively for 8 continuous days. The general symptom score of rats was observed. The serum levels of TFF1 and MUC5AC were detected by enzyme-linked immunosorbent assay (ELISA). The expression of EGFR protein in gastric mucosa was detected by immunohistochemistry. Results: After the treatment, compared with group A, the spleen deficiency symptom score was increased in group B, the levels of serum TFF1 and MUC5AC, the EGFR protein expression in gastric tissues of group C1, C2 and C3 were significantly increased (all P〈0.01); compared with group B, the spleen deficiency scores were decreased in group C1, C2 and C3, and the serum levels of TFF1 and MUC5AC, as well as EGFR protein expression in gastric tissues were increased (all P〈0.01). Compared with group C1, the spleen deficiency scores were decreased in group C2 and C3, the serum levels of TFF1 and MUC5AC, and the expression of EGFR protein in gastric tissues were increased (all P〈0.01), however, there was no significant difference between group C2 and C3 (all P〉0.05). The mechanism may be related to the increase of serum TFF2 and MUC5AC levels and activation of EGFR protein. Conclusion: Ginger-partitioned moxibustion can improve the symptoms, as well as promote the proliferation and repair of gastric mucosa in rats with spleen deficiency. The therapeutic efficacy of 6 or 9 moxa-cone ginger-partitioned moxibustion is better than that of 3 moxa-cone ginger-partitioned moxibustion, while the efficacies are equivalent between 6 and 9 moxa-cone Ringer-Dartitioned moxibustion groups. 展开更多
关键词 Moxibustion Therapy Ginger-partitioned Moxibustion Point Zusanli (ST 36) Point Zhongwan (CV 12) Researchon Acupoints Gastric Mucosal Damage Spleen Deficiency Syndrome RATS
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