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An online maximum power point capturing technique for highefficiency power generation of solar photovoltaic systems 预览
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作者 Lijun ZHANG Samson Shenglong YU +2 位作者 Tyrone FERNANDO Herbert Ho-Ching IU Kit Po WONG 《现代电力系统与清洁能源学报(英文)》 CSCD 2019年第2期357-368,共12页
This paper proposes a novel high-efficiency generation technique for photovoltaic(PV) system,named maximum power point capturing(MPPC) technique. This is an aperiodic perturbation MPPC technique compared to the conven... This paper proposes a novel high-efficiency generation technique for photovoltaic(PV) system,named maximum power point capturing(MPPC) technique. This is an aperiodic perturbation MPPC technique compared to the conventional periodic perturbation maximum power point tracking technique. Firstly, under a closed-loop circuit and an open-loop circuit,the complete I-V curves and P-V curves are defined. Secondly, the proposed MPPC technique is based on the complete I-V curves and a practical model of solar PV systems.The proposed method realizes that maximum power point(MPP) is captured online, and its control strategy is designed to set a steady operating area around MPP. The duty cycle keeps constant when the operating point is within the steady operating area, i.e., aperiodic perturbation, and when the operating point is outside the steady operating area, MPPC is triggered to capture a new MPP with an updated steady operating area. Simulation results demonstrate that no oscillations exist in steady-state;dynamic performances are improved;and only two perturbations are required to capture the new MPP. Using the proposed MPPC method,low voltage ride through and high voltage ride through can be prevented. 展开更多
关键词 PHOTOVOLTAIC systems MAXIMUM POWER POINT tracking(MPPT) MAXIMUM POWER POINT capturing(MPPC) Complete I–V CURVES
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Texture Feature Extraction from Thyroid MR Imaging Using High-Order Derived Mean CLBP
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作者 Zhe Liu Cheng-Jian Qiu +3 位作者 Yu-Qing Song Xiao-Hong Liu Juan Wang Victor S.Sheng 《计算机科学技术学报:英文版》 SCIE EI CSCD 2019年第1期35-46,共12页
In the field of medical imaging,the traditional local binary pattern (LBP)and its improved algorithms are often sensitive to noise.Traditional LBPs are solely based on the signal information from local differences,and... In the field of medical imaging,the traditional local binary pattern (LBP)and its improved algorithms are often sensitive to noise.Traditional LBPs are solely based on the signal information from local differences,and the binary quantization method oversimplifies the local texture features while disregarding the imaging information from the concaveconvex regions between the high-order pixels and the neighboring sampling points.Therefore,we propose an improved Derived Mean Complete Local Binary Pattern (DM_CLBP) algorithm based on high-order derivatives.In the DM_CLBP method,the grey value of a single pixel is replaced by the mean grey value of the rectangular area block,and the difference between pixel values in the area is obtained using the second-order differentiation method.Based on the calculation concept of the complete local binary pattern (CLBP)algorithm,the cascade signs and magnitudes of the two components are encoded and recombined in DM_CLBP using a uniform pattern.The results from the experiments showed that the proposed DM_CLBP descriptors achieved a classification accuracy of 94.4%.Compared with LBP and other improved algorithms,the DM_CLBP algorithm presented in this study can effectively differentiate between lesion areas and normal areas in thyroid MR,(magnetic resonance)images and shows the improved accuracy of area classification. 展开更多
关键词 THYROID magnetic resonance imaging (MRI) LOCAL BINARY PATTERN texture feature complete LOCAL BINARY PATTERN (CLBP)
Complete Weight Enumerator for a Class of Linear Codes from Defining Sets and Their Applications
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作者 LIAO Qunying WANG Xiaofeng 《系统科学与复杂性学报:英文版》 SCIE EI CSCD 2019年第3期947-969,共23页
Recently, linear codes over finite fields with a few weights have been extensively studied due to their applications in secret sharing schemes, authentication codes, constant composition codes. In this paper, for an o... Recently, linear codes over finite fields with a few weights have been extensively studied due to their applications in secret sharing schemes, authentication codes, constant composition codes. In this paper, for an odd prime p,the complete weight enumerator of a class of p-ary linear codes based on defining sets are determined. Furthermore, from the explicit complete weight enumerator of linear codes, a new class of optimal constant composition codes and several classes of asymptotically optimal systematic authentication codes are obtained. 展开更多
关键词 Authentication CODES COMPLETE WEIGHT enumerator constant composition CODES exponential SUMS linear CODES SECRET sharing schemes WEIGHT DISTRIBUTIONS
Effectiveness of taxanes over anthracyclines in neoadjuvant setting: A systematic-review and meta-analysis 预览
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作者 Mona Pathak Sada Nand Dwivedi +3 位作者 SVS Deo Bhaskar Thakur Vishnubhatla Sreenivas Goura Kishor Rath 《世界荟萃分析杂志》 2019年第4期170-183,共14页
BACKGROUND Anthracyclines and taxanes are more active group of chemotherapy regimen. Randomized controlled trials (RCTs) reported variable evidences regarding efficacy of taxanes over anthracyclines for tumor response... BACKGROUND Anthracyclines and taxanes are more active group of chemotherapy regimen. Randomized controlled trials (RCTs) reported variable evidences regarding efficacy of taxanes over anthracyclines for tumor response and survival outcomes. The present study compares the relative efficacy of taxanes over anthracyclines using pathological complete response (pCR), clinical responses, breast-conserving surgeries and survival outcomes in female breast cancer patients by systematic review and meta-analysis of available RCTs. AIM To assess the effectiveness of taxanes over anthracyclines in neoadjuvant setting in terms of tumor response and survival outcomes. METHODS All RCTs assessing efficacy of taxanes over anthracyclines in neoadjuvant setting for management of breast cancer searched through PubMed and Cochrane register of controlled trials on 28 April 2017 and published in English language were considered. Following PRISMA guideline, retrieved records were screened and data were extracted by two independent reviewers. Meta-analysis was performed using fixed effect or random effect method depending on heterogeneity assessed using I2 statistic. Subgroup meta-analyses on the basis of taxane alone or taxane along with anthracycline in comparison to anthracycline alone were also performed for each considered outcomes.A total of 16 RCTs involving 6752 breast cancer patients were found eligible. Taxanes based chemotherapy significantly improved pCR (n = 7, RR = 1.48, 95%CI: 1.04-2.12), disease free survival [n = 6, RR = 0.89 (0.80-0.99)] and locoregional recurrence free survival [n = 4, RR = 0.74 (0.59-0.94)]. Interestingly in subgroup analysis, addition of taxane to anthracyclines showed better effectiveness regarding these survivals over anthracyclines than taxane alone over anthracycline. CONCLUSION Addition of taxanes to anthracyclines based chemotherapy significantly improves pCR, disease free survival and loco-regional recurrence free survival but with no significant impact on breast conservation rates. 展开更多
关键词 DOCETAXEL Paclitaxel EPIRUBICIN Doxorubicin Pathological complete response Breast CONSERVING surgery
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无牙颌印模用个别托盘椅旁计算机辅助设计和三维打印系统建立与临床初步评价 预览
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作者 王冠博 叶红强 +3 位作者 陈虎 王勇 孙玉春 周永胜 《北京大学学报:医学版》 CAS CSCD 北大核心 2019年第2期349-355,共7页
目的:采用自主研发的无牙颌个别托盘椅旁数字化系统设计并三维打印无牙颌个别托盘,用视觉模拟评分法,基于医师对该个别托盘制取终印模的满意度,初步评价其临床应用效果。方法:由三位经过统一操作流程培训的修复医师随机接诊于北京大学... 目的:采用自主研发的无牙颌个别托盘椅旁数字化系统设计并三维打印无牙颌个别托盘,用视觉模拟评分法,基于医师对该个别托盘制取终印模的满意度,初步评价其临床应用效果。方法:由三位经过统一操作流程培训的修复医师随机接诊于北京大学口腔医院就诊的15名上、下颌牙列缺失患者,分别采用自主研发无牙颌个别托盘椅旁数字化系统和传统手工法制作无牙颌个别托盘,高流动型硅橡胶印模材制取终印模。采用视觉模拟评分法设计调查问卷,由制取终印模的三位医师根据制取印模的满意程度填写调查问卷,进行满意度调查。结果:根据制取印模的满意程度,使用自主研发无牙颌个别托盘椅旁数字化系统制作的个别托盘与传统手工法制作的无牙颌个别托盘在口腔内试戴(整体尺寸、外形、是否利于握持等)的平均满意度分别为9.18±0.19和8.23± 0.22 ,两者差异有统计学意义( P <0.05);试戴时边缘位置(边缘伸展、系带切迹)的平均满意度分别为8.91±0.40和7.96± 0.23 ,两者差异有统计学意义( P <0.05);托盘稳定性的平均满意度分别为8.80±0.83和8.01±0.81,两者差异有统计学意义( P <0.05);终印模制取效果(完整性、印模材厚度、是否漏出托盘、边缘形态)的平均满意度分别为 8.94± 0.68和7.99±0.42,两者差异有统计学意义( P <0.05);优质终印模获取难度(重复次数、效率)的平均满意度分别为9.20±0.37和7.88±0.22,两者差异有统计学意义( P <0.05);整体的平均满意度分别为 9.11± 0.49和7.95±0.15,两者差异有统计学意义( P <0.05)。结论:使用自主研发无牙颌个别托盘椅旁数字化系统制作的个别托盘制取终印模的医师满意度高于传统手工光固化法制作的个别托盘,达到临床要求,可进一步在临床上推广使用。 展开更多
关键词 义齿 全口 计算机辅助设计 打印 三维 个别托盘
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Relative Gromov-Witten invariants of projective completions of vector bundles
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作者 Chengyong Du 《中国科学:数学英文版》 SCIE CSCD 2019年第7期1429-1438,共10页
It was proved by Fan and Lee(2016) and Fan(2017) that the absolute Gromov-Witten invariants of two projective bundles P(Vi)→ X are identified canonically when the total Chern classes c(V1) and c(V2) satisfy c(V1)= c(... It was proved by Fan and Lee(2016) and Fan(2017) that the absolute Gromov-Witten invariants of two projective bundles P(Vi)→ X are identified canonically when the total Chern classes c(V1) and c(V2) satisfy c(V1)= c(V2) for two bundles V1 and V2 over a smooth projective variety X. In this paper, we show that the relative Gromov-Witten invariants of(P(Vi ⊕ O), P(Vi)), i = 1, 2 are identified canonically when c(V1)= c(V2),where P(Vi ⊕ O) are the projective completions of the bundles Vi → X, and the projective bundles P(Vi) are the exceptional divisors in P(Vi ⊕ O). 展开更多
关键词 PROJECTIVE completion RELATIVE Gromov-Witten invariant UNIQUENESS BLOW-UP along complete INTERSECTION
Cu-Promoted Cobalt Oxide Film Catalyst for Efficient Gas Emissions Abatement
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作者 EL KASMI Achraf WAQAS Muhammad +1 位作者 MOUNTAPMBEME KOUTOU Patrick TIAN Zhenyu 《热科学学报:英文版》 SCIE EI CAS CSCD 2019年第2期225-231,共7页
Thin film catalysts have been recently reported as promising catalysts owing to their good catalytic activity and reduced material amount, leading to low-cost efficient catalysts for gaseous emissions control. Here, w... Thin film catalysts have been recently reported as promising catalysts owing to their good catalytic activity and reduced material amount, leading to low-cost efficient catalysts for gaseous emissions control. Here, we report the slight loading of Cu in cobalt spinel using a one-step pulsed-spray evaporation chemical vapor deposition(PSE-CVD) synthesis technique for efficient short-chain volatile organic compounds(VOCs) emissions treatment. Crystalline structure and morphology analyses revealed nano-crystallite sizes and open-like morphology. The catalytic performance was evaluated through the complete oxidation of C3H6, as a short-chain representative model of VOCs, at a high gas hourly space velocity(GHSV). Very good activity was obtained towards the complete abatement of C3H6 at low temperature and no carbon monoxide(CO) was formed during the oxidation process. Slightly-promoted Co3O4 catalyst with Cu introduction resulted in high catalytic activity comparing to the performance of the catalysts in the literature, due to the high dispersion of Cu and high active surface oxygen amount. Moreover, to evaluate the capability of the used catalysts under near realistic reaction conditions, CO2 effect on the catalytic activity was performed and the catalyst exhibited very good results. Thus, the adopted slightly-doping strategy to tailor a high active catalyst at low temperature could establish a very promising route to strongly enhance the activity of such other catalysts towards gas emissions abatement at low temperature. 展开更多
关键词 low Cu-doping PSE-CVD technique thin film catalysts complete CATALYTIC oxidation VOCs
Complete Convergence for Sung’s Type Weighted Sums of Dependent Random Variables with General Moment Conditions
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作者 Dehua QIU Yanchun YI Pingyan CHEN 《数学研究及应用:英文版》 CSCD 2019年第4期395-407,共13页
In this paper, the complete convergence theorems for Sung’s type weighted sums of END random variables and PNQD random variables with general moment conditions are obtained. The theorems extend the related known work... In this paper, the complete convergence theorems for Sung’s type weighted sums of END random variables and PNQD random variables with general moment conditions are obtained. The theorems extend the related known works in the literature. 展开更多
关键词 COMPLETE CONVERGENCE general MOMENT condition END RANDOM VARIABLES PNQD RANDOM VARIABLES
Urban Street Design from the Perspective of Complete Streets:A Case Study of Shashen Road in Shenzhen 预览
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作者 HUANG Zan 《景观研究:英文版》 2019年第4期19-24,28共7页
The design concept of complete streets pays attention to the rights and interests of all road users, as well as the overall design of pedestrians, bicycles, public transportation, motor vehicles and other modes of tra... The design concept of complete streets pays attention to the rights and interests of all road users, as well as the overall design of pedestrians, bicycles, public transportation, motor vehicles and other modes of transportation and transportation space, which is conducive to improving the misunderstanding of China’s urban street design aiming to serve motorized traffic. In this study, the development course, concept, objectives and design elements of complete streets were studied, and the conceptual framework of street integrity evaluation was established. Shashen Road in Shenzhen City was as a case to analyze the problems existing in traditional street design and explore the spatial design method of complete streets. It is pointed out that street design should adapt to local conditions and be optimized according to current situation. The improvement measures that can be implemented were proposed to enhance the vitality of streets. 展开更多
关键词 COMPLETE STREET STREET DESIGN STREET evaluation Space quality
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Evaluating spatial structure of a mixed broad-leaved/Korean pine forest based on neighborhood relationships in Mudanfeng National Nature Reserve,China 预览
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作者 Miao Yang Tijiu Cai +1 位作者 Cunyong Ju Hongfei Zou 《林业研究:英文版》 CAS CSCD 2019年第4期1375-1381,共7页
China’s 13 th 5-year forestry plan explicitly requires the end of commercial harvesting and the improved management of natural forests by means of adjusting and optimizing forest structure and developing high-quality... China’s 13 th 5-year forestry plan explicitly requires the end of commercial harvesting and the improved management of natural forests by means of adjusting and optimizing forest structure and developing high-quality forest production.This requires the quantification of stand structure and species diversity.In this study,species distribution,association and size differentiation in a mixed broad-leaved/Korean pine(Pinus koraiensis Siebold&Zucc.)forest in Mudanfeng National Nature Reserve were analyzed using three spatial structure indices:uniform angle index,complete mingling index,and size differentiation index.The results show that the species were randomly distributed,with a moderate size differentiation and high mixed structure.Three dominant species exhibited different patterns in terms of the three indices and their bivariate distribution.Overall,Korean pine showed an opposite trend to Manchurian maple(Acer mandshuricum Maxim.),whereas the distribution pattern of Manchurian linden(Tilia mandshurica Rupr.&Maxim.)was similar to that of the entire stand.Our work contributes to further the knowledge of population structure in order to optimize the structure of secondary forests and plantations. 展开更多
关键词 Structure PARAMETER Species association COMPLETE MINGLING index BIVARIATE distribution
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Sustained complete response to erlotinib in squamous cell carcinoma of the head and neck: A case report 预览
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作者 Mie Mie Thinn Chung-Tzu Hsueh Chung-Tsen Hsueh 《世界临床病例杂志》 2019年第5期616-622,共7页
BACKGROUND Squamous cell carcinoma of head and neck (SCCHN) is the fifth most common cancer worldwide. Inhibition of epidermal growth factor receptor signaling has been shown to be a critical component of therapeutic ... BACKGROUND Squamous cell carcinoma of head and neck (SCCHN) is the fifth most common cancer worldwide. Inhibition of epidermal growth factor receptor signaling has been shown to be a critical component of therapeutic option. Herein, we report a case of durable complete response to erlotinib. CASE SUMMARY An 81-year-old Caucasian male who presented with metastatic poorly differentiated squamous cell carcinoma of right cervical lymph nodes (levels 2 and 3). Imaging studies including (18)F-fluorodeoxyglucose positron emission tomography/computed tomography (CT) and contrast-enhanced CT scan of neck and chest did not reveal any other disease elsewhere. Panendoscopic examination with random biopsy did not reveal malignant lesion in nasopharynx, oropharynx, and larynx. He underwent modified neck dissection and postoperative radiation. Within 2 mo after completion of radiation, he developed local recurrence at right neck, which was surgically removed. Two mo after the salvage surgery, he developed a second recurrence at right neck. Due to suboptimal performance status and his preference, he started erlotinib treatment. He achieved partial response after first 2 mo of erlotinib treatment, then complete response after total 6 mo of erlotinib treatment. He developed sever skin rash and diarrhea including Clostridium difficile infection during the course of erlotinib treatment requiring dose reduction and eventual discontinuation. He remained in complete remission for more than two years after discontinuation of erlotinib. CONCLUSION We report a case of metastatic SCCHN achieving durable complete response from erlotinib. Patient experienced skin rash and diarrhea toxicities which were likely predictors of his treatment response. 展开更多
关键词 SQUAMOUS cell carcinoma of head and neck EPIDERMAL growth factor receptor ERLOTINIB Complete response Skin RASH TYROSINE kinase inhibitor Case report
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Self-centering characteristics of a petal-shaped capsule robot
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作者 ZHANG YongShun CHEN Jun +1 位作者 ZHANG Yu MENG Kang 《中国科学:技术科学英文版》 SCIE EI CAS CSCD 2019年第4期619-627,共9页
Based on the multiple wedge effects,a petal-shaped capsule robot(PCR)is proposed,and the self-centering phenomenon of the PCR is discovered.For investigating the self-centering characteristics,an innovative concept of... Based on the multiple wedge effects,a petal-shaped capsule robot(PCR)is proposed,and the self-centering phenomenon of the PCR is discovered.For investigating the self-centering characteristics,an innovative concept of the instantaneous fluid membrane(FM)thickness,along with the dynamic FM thickness,is proposed;thus a dynamic FM thickness model and a hydrodynamic pressure(HP)model are derived when the PCR axis deviates from the pipe axis under the effect of gravity.A kinematics equation during suspending process in the vertical direction and a swimming kinematics equation in axial direction are derived respectively.Four capsule robots with different eccentricities of the tiles were manufactured and tested,the theoretical and experimental results show that the HP gradient is a fundamental reason for the self-centering phenomenon.The PCR with the self-centering ability can directly avoid the contact with the bottom of the gastrointestinal(GI)tract,achieving the excellent obstacle surmounting ability in the GI complex environment with the less twisted impact on the GI tract,which has a promising application prospect in the GI diagnosis. 展开更多
关键词 petal-shaped CAPSULE robot SELF-CENTERING CHARACTERISTICS multiple WEDGE effects complete suspension phenomenon
Noiseless linear amplification for the single-photon entanglement of arbitrary polarization–time-bin qudit
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作者 陈灵泉 盛宇波 周澜 《中国物理B:英文版》 SCIE EI CAS CSCD 2019年第1期210-217,共8页
Single-photon entanglement(SPE) is an important source in quantum communication. In this paper, we put forward a single-photon-assisted noiseless linear amplification protocol to protect the SPE of an arbitrary polari... Single-photon entanglement(SPE) is an important source in quantum communication. In this paper, we put forward a single-photon-assisted noiseless linear amplification protocol to protect the SPE of an arbitrary polarization–time-bin qudit from the photon transmission loss caused by the practical channel noise. After the amplification, the fidelity of the SPE can be effectively increased. Meanwhile, the encoded polarization–time-bin features of the qudit can be well preserved. The protocol can be realized under the current experimental conditions. Moreover, the amplification protocol can be extended to resist complete photon loss and partial photon loss during the photon transmission. After the amplification, we can not only increase the fidelity of the target state, but also solve the decoherence problem simultaneously. Based on the above features, our amplification protocol may be useful in future quantum communication. 展开更多
关键词 SINGLE-PHOTON ENTANGLEMENT noiseless linear AMPLIFICATION polarization–time-bin QUDIT complete and partial photon loss
Mid-Qing Spirit-Altars, Officialdom, and Patrilineal Power:Peng Qifeng’s Prefaces to the Complete Works of Thearch Guan, Patriarch Lü, and Wenchang(1772-1775)
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作者 Daniel Burton-Rose 《道教学刊》 2019年第1期130-156,共27页
Introduction Beginning less than a decade after his attainment of the position of Secretary of the Board of War(1763-1766), Peng Qifeng 彭启丰(1701-1784;jinshi 1727)authored prefaces to the canonical'complete work... Introduction Beginning less than a decade after his attainment of the position of Secretary of the Board of War(1763-1766), Peng Qifeng 彭启丰(1701-1784;jinshi 1727)authored prefaces to the canonical'complete works'(quanshu全书)of the newly crystalized trinity of spirit-altar deities of the mid-Qing dynasty: Complete Works of 展开更多
关键词 In 关圣帝君 Patriarch L and Patrilineal Power:Peng Qifeng’s PREFACES to the COMPLETE Works of Thearch Guan and Wenchang Mid-Qing Spirit-Altars Officialdom
Post-operative computed tomography scan – reliable tool for quality assessment of complete mesocolic excision 预览
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作者 Cristian Livadaru Stefan Morarasu +7 位作者 Tudor Cristian Frunza Florina A Ghitun Elena Florina Paiu-Spiridon Florina Sava Cristina Terinte Dan Ferariu Sorinel Lunca Gabriel Mihail Dimofte 《世界胃肠肿瘤学杂志:英文版(电子版)》 CAS 2019年第3期208-226,共19页
BACKGROUND Quality control in colon cancer surgery is an ongoing debate ever since standardization proved to be highly efficient in improving survival in rectal cancer. Complete mesocolic excision(CME) is widely accla... BACKGROUND Quality control in colon cancer surgery is an ongoing debate ever since standardization proved to be highly efficient in improving survival in rectal cancer. Complete mesocolic excision(CME) is widely acclaimed as the new goldstandard in colon cancer resections, thus it is imperative to establish quality criteria of CME in order to make it easily understood and verified by surgeons worldwide. One simple and reproducible tool could be the measurement of arterial stumps postoperatively and a straightforward way to test its reliability is to test it in a comparative study between CME and non-CME surgery.AIM To validate arterial stump measurement as a surgical quality tool by comparing CME with conventional radical colectomies.METHODS This was a retrospective study, carried out on a prospective database. We collected data from two groups of patients, divided according to standard CME with D2 central vascular ligation(group A) and non-standardized surgery(group B). The two groups were compared with regard to the arterial stump length after right-and left-sided colectomies for colon cancer. The actual stump lengths of the ileocolic artery(ICA) and inferior mesenteric artery(IMA) were compared with their theoretical best D2 position of predicted ligation levels(D2 PLLs) for calculating the potential for improvement. Measurements on follow-up computed tomography scans were carried out by three observers. Pathological data were recorded(specimen length, lymph node yield) and correlated with stump length.RESULTS We analysed 58 colectomies. The stump lengths(mean ± SD) in group A were16.97 ± 4.77 mm for ICA and 31.70 ± 15.71 mm for IMA, whereas group B had 49.93 ± 20.29 mm for ICA and 67.24 ± 28.71 mm for IMA. Shorter lengths were obtained in group A, by a mean difference of 35.66 mm(χ~2 = 27.38, P < 0.001),which was significant for all types of colectomies. Except for a 5.85 ± 4.71 mm difference for right colectomies, all the ligations from group A significantly reached their potential height(0.26 ± 12.1 展开更多
关键词 Complete mesocolic EXCISION Central vascular LIGATION COLON surgery ARTERIAL stump measurement COMPUTED tomography
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TALKING TIPS Text Review
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作者 Malia Chen 《空中英语教室:初级版.大家说英语》 2019年第4期46-47,共2页
Use this month's Use it! tips to complete each sentence?
关键词 TALKING TIPS TEXT REVIEW complete EACH SENTENCE
The analgesic effect of electroacupuncture in complete Freund's adjuvant rats:a metaanalysis
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作者 张阔 徐枝芳 +4 位作者 李凯 赵雪 陈波 郭义 王慎军 《世界针灸杂志:英文版》 CSCD 2019年第1期15-27,共13页
Pain is a global problem and has been found sensitive to acupuncture.A large number of existing and n ewly published studies have dem on strated the an algesic effect of electroacupuncture(EA)in complete Freund's ... Pain is a global problem and has been found sensitive to acupuncture.A large number of existing and n ewly published studies have dem on strated the an algesic effect of electroacupuncture(EA)in complete Freund's adjuvant(CFA)rat model,necessitating a new and comprehensive review.To evaluate the curative effect of EA on thermal hyperalgesia in CFA rats,and to explore parameters that in fluence treatment effects,studies of EA treatment on thermal hyperalgesia of CFA rat model were identified from nine databases up to June 17,2017.Outcome measure was heat pain threshold.All the data were analyzed using Stata 14.0/MP software.26 studies identified included 801 rats.The quality score of the studies ranged from 3 to 6,with a mean of 4.08.The effect of EA group was improvement in outcome compared with CFA group.In subgroup analyses,frequency 2,100,2/100 or 20-100 Hz,acupoint Huantiao(环跳GB30),Kunlun(昆仑BL60)+Xuanzhong(悬钟GB39),ZusanlT(足三里ST36)+BL60 or ST36+Sanyinjiao(三阴交SP6),retention time 20 or 30 min,treatment time for post-CFA injection immediately,the same day as CFA injection,post-CFA injection 24 or 48 h and interval 24 or 48 h all can improve the effect on CFA rat heat pain threshold.These results show that there is positive effective of EA in CFA-induced pain,different parameters have different effects on EA treatment of CFA heat hyperalgesia,however,because of the number of eligible researches and the high risk of bias,the evidence supporting this conclusion is limited. 展开更多
关键词 Electroacupuncture(EA) ANALGESIA COMPLETE Freund's ADJUVANT RATS
Caval replacement with parietal peritoneum tube graft for septic thrombophlebitis after hepatectomy: A case report 预览
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作者 Charlotte Maulat Léopoldine Lapierre +3 位作者 Isabelle Migueres Xavier Chaufour Guillaume Martin-Blondel Fabrice Muscari 《世界肝病学杂志:英文版(电子版)》 2019年第1期133-137,共5页
BACKGROUND Caval vein thrombosis after hepatectomy is rare, although it increases mortality and morbidity. The evolution of this thrombosis into a septic thrombophlebitis responsible for persistent septicaemia after a... BACKGROUND Caval vein thrombosis after hepatectomy is rare, although it increases mortality and morbidity. The evolution of this thrombosis into a septic thrombophlebitis responsible for persistent septicaemia after a hepatectomy has not been reported to date in the literature. We here report the management of a 54-year-old woman operated for a peripheral cholangiocarcinoma who developed a suppurated thrombophlebitis of the vena cava following a hepatectomy. CASE SUMMARY This patient was operated by left lobectomy extended to segment V with bile duct resection and Roux-en-Y hepaticojejunostomy. After the surgery, she developed Streptococcus anginosus, Escherichia coli, and Enterococcus faecium bacteraemias, as well as Candida albicans fungemia. A computed tomography scan revealed a bilioma which was percutaneously drained. Despite adequate antibiotic therapy, the patient’s condition remained septic. A diagnosis of septic thrombophlebitis of the vena cava was made on post-operative day 25. The patient was then operated again for a surgical thrombectomy and complete caval reconstruction with a parietal peritoneum tube graft. Use of the peritoneum as a vascular graft is an inexpensive technique, it is readily and rapidly available, and it allows caval replacement in a septic area. Septic thrombophlebitis of the vena cava after hepatectomy has not been described previously and it warrants being added to the spectrum of potential complications of this procedure.CONCLUSION Septic thrombophlebitis of the vena cava was successfully treated with antibiotic and anticoagulation treatments, prompt surgical thrombectomy and caval reconstruction. 展开更多
关键词 Bilioma SEPTIC thrombophlebitis SEPTICAEMIA PARIETAL PERITONEUM TUBE GRAFT Complete caval reconstruction Case report
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Formation conditions of landslide dams triggered by incision of mine waste accumulations
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作者 ZHU Xing-hua PENG Jian-bing +1 位作者 JIANG Cheng GUO Wei-long 《山地科学学报:英文版》 SCIE CSCD 2019年第1期108-121,共14页
The erosion and delivery processes of mine waste accumulations were reproduced through flume tests under 13 different experimental condition sets.Analysis of the flume test results showed that different scale model la... The erosion and delivery processes of mine waste accumulations were reproduced through flume tests under 13 different experimental condition sets.Analysis of the flume test results showed that different scale model landslides,induced by the incision of mine waste accumulations,slipped into the channel and caused complete or partial blockages,with 28 complete blockages and 122 partial blockages observed during the flume tests.The failure of these temporary landslide dams amplified the peak discharge significantly,with the amplification more obvious when caused by the failure of a complete blockage compared to a partial blockage under the same experimental conditions.In order to explore the threshold conditions of a complete blockage,a new blockage index(Ibs)was developed to represent the degree of blockage.It was found that the threshold value of the blockage index for a complete blockage was around Ibs=4.0.What’s more,there was a significant negative correlation between the blockage index and the amplification coefficient of peak discharge caused by the failure of a landslide dam.These preliminary results are intended to provide a scientific basis for future research on the disaster prevention and mitigation of mine waste debris flows,as the processes and mechanisms underlying the erosion and delivery of mine waste accumulations by upstream flows along a gully have not yet been clearly identified. 展开更多
关键词 MINE waste LANDSLIDE DAMS COMPLETE BLOCKAGE Partial BLOCKAGE BLOCKAGE index
Clinical value of transcatheter arterial chemoembolization therapy for hepatocellular carcinoma with blood supply from right adrenal artery
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作者 廖光胜 《中国医学文摘:内科学分册(英文版)》 2019年第1期46-47,共2页
Objective To study the clinical value of transcatheter arterial chemoembolization (TACE) therapy for hepatocellular carcinoma with blood supply from right adrenal artery. Methods An imaging and clinical data of HCC pa... Objective To study the clinical value of transcatheter arterial chemoembolization (TACE) therapy for hepatocellular carcinoma with blood supply from right adrenal artery. Methods An imaging and clinical data of HCC patients with blood supply from right adrenal artery were collected from 2012 to 2016 after TACE treatment in the Second Affiliated Hospital of Chongqing Medical University and the safety and therapeutic efficacy of complete embolization therapy were analyzed retrospectively. 展开更多
关键词 study VALUE COMPLETE
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