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PGE and isotopic characteristics of Shergol and Suru Valley Ophiolites,Western Ladakh:Implications for supra-subduction tectonics along Indus Suture Zone

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Geoscience Frontiers 2021年第3期12卷 473-488页

作者： Irfan Maqbool Bhat talat Ahmad D.V.Subba rao Srinivasan Balakrishnan N.V.Chalapathi rao Department of Earth Sciences University of KashmirSrinagar 190006India Vice Chancellors Office University of KashmirSrinagar 190006India Geochemistry Division CSIR-National Geophysical Research Institute(NGRI)Hyderabad 500007India Department of Earth Sciences Pondicherry UniversityPuducherry 605014India Centre of Advanced Study in Geology Institute of ScienceBanaras Hindu UniversityVaranasi 221005India

Present study reports the PGE-geochemistry of mantle peridotites and Nd-isotope geochemistry of arc related mafic rocks from the Indus Suture Zone(ISZ),western *** total PGE concentration of the Shergol and Suru Valley peridotites(∑PGE=96-180 ppb)is much higher than that of the primitive mantle and global ophiolitic mantle *** studied peridotites show concave upward PGE-distribution patterns with higher palladium-group PGE/Iridium-group PGE ratios(i.e.,0.8-2.9)suggesting that the partial melting is not the sole factor responsible for the evolution of these *** observed PGE-distribution patterns are distinct from residual/refractory mantle peridotites,which have concave downward or flat PGE-distribution *** enrichment of palladium-group PGE as well as other whole-rock incompatible elements(e.g.,LILE and LREE)and higher Pd/Ir ratio(1.1-5.9)reflects that these peridotites have experienced fluid/melt interaction in a supra-subduction zone(SSZ)tectonic ***,the Shergol mafic intrusives and Dras mafic volcanics,associated with the studied peridotites,have high^(143)Nd/^(144)Nd ratios(i.e.,0.512908-0.513078 and 0.512901-0.512977,respectively)and positiveε_(Nd)(t)(calculated for t=140 Ma)values(i.e.,+5.3 to+8.6 and+5.1 to+6.6,respectively),indicating derivation from depleted mantle sources within an intra-oceanic arc setting,similar to Spongtang and Nidar ophiolites from other parts of Ladakh *** transition from SSZ-type Shergol and Suru Valley peridotites to Early Cretaceous tholeiitic Shergol mafic intrusives followed by tholeiitic to calc-alkaline Dras mafic volcanics within the Neo-tethys Ocean exhibit characteristics of subduction initiation mechanism analogous to the Izu-Bonin-Mariana arc system within western Pacific.

关键词： PGE Nd-isotope Mantle peridotites Ophiolites Ladakh Neo-tethys Ocean

StEP-based Feature Recognition System for B-spline Surface Features

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International Journal of Automation and computing 2018年第4期15卷 500-512页

作者： Bitla Venu Venkateswara rao Komma Deepanshu Srivastava Department of Mechanical Engineering Motilal Nehru National Institute of Technology

the geometrical and topological information of 3D computer aided design （CAD） models should be represented as a neut- ral format file to exchange the data between different CAD systems. Exchange of 3D CAD model data implies that the companies must exchange complete information about their products, all the way from design, manufacturing to inspection and shipping. this informa- tion should be available to each relevant partner over the entire life cycle of the product. this led to the development of an international standard organization （ISO） neutral format file named as standard for the exchange of product model data （StEP）. It has been ob- served from the literature, the feature recognition systems developed were identified as planar, cylindrical, conical and to some extent spherical and toroidal surfaces. the advanced surface features such as B-spline and its subtypes are not identified. therefore, in this work, a StEP-based feature recognition system is developed to recognize t--spline surface features and its sub-types from the 3D CAD model represented in AP203 neutral file format. the developed feature recognition system is implemented in Java programming language and the product model data represented in StEP AP203 format is interpreted through Java standard data access interface （JSDAI）. the developed system could recognize B-spline surface features such as B-Spline surface with knots, quasi uniform surface, uniform surface, rational surface and Bezier surface. the application of extracted B-spline surface features information is discussed with reference to the toolpath generation for StEP-NC （StEP AP238）.

关键词： Feature recognition 3D computer aided design(CAD)model geometrical information standard for the exchange ofproduct model data(StEP)AP203 Java standard data access interface(JSDAI).

Pathophysiology and Prevention of Paracentesis-induced Circulatory Dysfunction:A Concise Review

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Journal of Clinical and translational Hepatology 2020年第1期8卷 42-48页

作者： Anand V Kulkarni Pramod Kumar Mithun Sharma t R Sowmya Rupjyoti talukdar Padaki Nagaraj rao D Nageshwar Reddy Department of Hepatology Asian Institute of GastroenterologyHyderabadIndia Department of Gastroenterology Asian Institute of GastroenterologyHyderabadIndia

Annually,10%of cirrhotic patients with ascites develop refractory ascites for which large-volume paracentesis(LVP)is a frequently used therapeutic ***,although a safe method,is associated with circulatory dysfunction in a significant percentage of patients,which is termed para-centesis-induced circulatory dysfunction(PICD).PICD results in faster reaccumulation of ascites,hyponatremia,renal impairment,and shorter *** is diagnosed through laboratory results,with increases of>50%of baseline plasma renin activity to a value≥4 ng/mL/h on the fifth to sixth day after *** this review,we discuss the pathophysi-ology and prevention of PICD.

关键词： Refractory ascites Plasma renin activity Large-volume paracentesis Cirrhosis Portal hypertension

参芪地黄汤加减联合缬沙坦胶囊治疗慢性肾小球肾炎的效果及对肾功能和免疫功能的影响

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临床合理用药杂志 2024年第29期17卷 20-22页

作者：李董平李聪饶杰广东省深圳市盐田区人民医院中西医结合肾病科 518000

目的观察参芪地黄汤加减联合缬沙坦胶囊治疗慢性肾小球肾炎(CGN)的效果及对肾功能和免疫功能的影响。方法选取2021年3月—2023年3月于深圳市盐田区人民医院诊治的CGN患者80例,根据单双号随机分为观察组40例和对照组40例。对照组给予缬... 详细信息

目的观察参芪地黄汤加减联合缬沙坦胶囊治疗慢性肾小球肾炎(CGN)的效果及对肾功能和免疫功能的影响。方法选取2021年3月—2023年3月于深圳市盐田区人民医院诊治的CGN患者80例,根据单双号随机分为观察组40例和对照组40例。对照组给予缬沙坦胶囊治疗,观察组给予参芪地黄汤加减联合缬沙坦胶囊治疗,2组均治疗8周。比较2组疗效,治疗前后肾功能指标[血肌酐(SCr)、血尿素氮(BUN)、24 h尿蛋白定量(24 h-Upro)]、免疫指标(CD4^(+)、CD8^(+)、CD4^(+)/CD8^(+))水平及不良反应。结果观察组治疗总有效率为95.00%,高于对照组的77.50%(χ^(2)=5.165,P=0.023);治疗8周后,2组SCr、BUN水平、24 h-Upro及CD8^(+)低于治疗前,CD4^(+)、CD4^(+)/CD8^(+)高于治疗前,且观察组低/高于对照组(Pt淋巴细胞水平,改善肾功能,且安全性高。

关键词：慢性肾小球肾炎参芪地黄汤缬沙坦治疗效果肾功能指标免疫指标

尼可地尔治疗2型糖尿病合并冠心病患者的效果

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中国民康医学 2024年第17期36卷 25-28页

作者：喻华龙饶元辉刘坤郑州大桥医院药剂科河南郑州450000

目的:观察尼可地尔治疗2型糖尿病(t2DM)合并冠心病患者的效果。方法:回顾性分析2022年1月至2023年7月该院收治的92例t2DM合并冠心病患者的临床资料,按治疗方案不同将其分为对照组与观察组各46例。对照组采用常规方案治疗,观察组在对照... 详细信息

目的:观察尼可地尔治疗2型糖尿病(t2DM)合并冠心病患者的效果。方法:回顾性分析2022年1月至2023年7月该院收治的92例t2DM合并冠心病患者的临床资料,按治疗方案不同将其分为对照组与观察组各46例。对照组采用常规方案治疗,观察组在对照组基础上采用尼可地尔治疗。比较两组临床疗效,治疗前后心绞痛发作次数、心功能指标[E、A波峰比值(E/A)、左心室射血分数(LVEF)]水平、心率变异性指标[正常窦性R-R间期标准差(SDNN)、24 h内每5 min相邻R-R间期标准差的平均值(RMSSD)、每5 min R-R间期均值标准差(SDANN)]水平、血清炎性指标[肿瘤坏死因子-α(tNF-α)、白细胞介素(IL)-34、人软骨糖蛋白39(YKL-40)、IL-6]水平和不良反应发生率。结果:观察组治疗总有效率为89.13%,高于对照组的71.74%,差异有统计学意义(PtNF-α、IL-34、YKL-40、IL-6水平均低于治疗前,且观察组低于对照组,差异有统计学意义(P0.05)。结论:在常规方案治疗基础上采用尼可地尔治疗t2DM合并冠心病患者可提高治疗总有效率、心功能指标水平和心率变异性指标水平,减少心绞痛发作次数,降低血清炎性指标水平,其效果优于单纯常规方案治疗。

关键词： 2型糖尿病冠心病尼可地尔心功能心率变异性炎性指标不良反应

宫腔球囊放置压迫应用于剖宫产术中预防产后出血的效果及对产后并发症发生情况的影响

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世界复合医学 2024年第5期10卷 101-104页

作者：陈继群饶霜刘敏贵州省毕节市赫章县人民医院产科贵州赫章553200

目的分析宫腔球囊放置压迫应用于剖宫产术中预防产后出血的效果及对并发症发生情况的影响。方法选取2019年1月—2023年12月贵州省毕节市赫章县人民医院收治的70例剖宫产患者为研究对象,根据不同止血方式分为对照组和观察组,每组35例... 详细信息

目的分析宫腔球囊放置压迫应用于剖宫产术中预防产后出血的效果及对并发症发生情况的影响。方法选取2019年1月—2023年12月贵州省毕节市赫章县人民医院收治的70例剖宫产患者为研究对象,根据不同止血方式分为对照组和观察组,每组35例。术中,对照组应用纱布填塞压迫,观察组应用宫腔球囊放置压迫。对比两组患者产后2 h、24 h出血量、产后感染发生率及其他并发症发生率。结果观察组产后2 h、24 h出血量分别为(300.07±15.04)mL、(460.18±23.04)mL,少于对照组的(548.15±23.16)mL、(812.17±50.29)mL,差异有统计学意义(t=9.357、8.548,P均<0.05)。观察组并发症发生率(0)低于对照组(22.86%)(8/35),差异有统计学意义(P<0.05)。结论宫腔球囊放置压迫应用于剖宫产术中预防产后出血的效果显著,且能有效降低患者产后并发症发生率。

关键词：宫腔球囊放置压迫剖宫产术产后出血并发症

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右美托咪定辅助股神经及坐骨神经阻滞对老年下肢骨折患者免疫功能及麻醉效果的影响

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当代医学 2024年第12期30卷 125-128页

作者：肖逸饶军邹节和抚州市中医医院麻醉科江西抚州344000 抚州市第一人民医院麻醉科江西抚州344000

目的探讨右美托咪定辅助股神经及坐骨神经阻滞对老年下肢骨折患者免疫功能及麻醉效果的影响。方法选取2020年8月至2022年12月抚州市中医医院实施下肢手术治疗的50例老年下肢骨折患者作为研究对象,随机分为观察组与对照组,每组25例。两... 详细信息

目的探讨右美托咪定辅助股神经及坐骨神经阻滞对老年下肢骨折患者免疫功能及麻醉效果的影响。方法选取2020年8月至2022年12月抚州市中医医院实施下肢手术治疗的50例老年下肢骨折患者作为研究对象,随机分为观察组与对照组,每组25例。两组均于超声引导下对前路骨神经、后路坐骨神经实施联合阻滞麻醉,观察组在麻醉成功后予以右美托咪定微量泵入,对照组予以等剂量0.9%氯化钠注射液静脉注射。比较两组给药前(t0)、给药后15 min(t1)、手术开始后15 min(t2)、手术开始后30 min(t3)、手术完毕(t4)血流动力学状态及Ramsay评分;比较两组手术前后免疫功能指标及不良反应发生情况。结果t1时,观察组HR慢于对照组,Ramsay评分高于对照组,差异有统计学意义(Pt2~t4时,观察组HR均慢于对照组,Ramsay评分高于对照组,观察组t3时MAP低于对照组,差异有统计学意义(P<0.05)。术后,两组CD3+、CD4+水平及CD4+/CD8+均低于术前,但观察组高于对照组,差异有统计学意义(P<0.05)。观察组不良反应发生率为4.00%,低于对照组的32.00%,差异有统计学意义(P<0.05)。结论老年下肢骨折患者实施右美托咪定辅助股神经、坐骨神经阻滞麻醉可使麻醉过程中血流动力学维持在稳定状态,强化镇痛效果,且不会对免疫功能造成明显影响,不良反应发生风险较小,具有较高有效性、安全性,值得临床推广应用。

关键词：右美托咪定股神经坐骨神经神经阻滞血流动力学免疫功能

Adaptive Signal Enhancement Unit for EEG Analysis in Remote Patient Care Monitoring Systems

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Computers, Materials & Continua 2021年第5期67卷 1801-1817页

作者： Ch.Srinivas K.Chandrabhushana rao Department of Electronics and Communication Engineering J.N.T.UniversityKakinada533003India Department of Electronics and Communication Engineering JNTUK-UCEVVizianagaram535003India

In this paper we propose an efcient process of physiological artifact elimination methodology from brain waves(BW),which are also commonly known as electroencephalogram(EEG)*** a clinical environment during the acquisition of BW several artifacts contaminates the actual BW *** leads to inaccurate and ambiguous *** the statistical nature of the EEG signal is more non-stationery,adaptive ltering is the more promising method for the process of artifact *** clinical conditions,the conventional adaptive techniques require many numbers of computational operations and leads to data samples overlapping and instability of the algorithm *** causes delay in diagnosis and decision *** overcome this problem in our work we propose to set a threshold value to diminish the problem of round off *** resultant adaptive algorithm based on this strategy is Non-linear Least mean square(NL2MS)***,to improve this algorithm in terms of ltering capability we perform data normalization,using this algorithm several hybrid versions are developed to improve ltering and reduce computational *** the method,a new signal enhancement unit(SEU)is realized and performance of various hybrid versions of algorithms examined using real EEG signals recorded from the *** ability of the proposed schemes is measured in terms of convergence,enhancement and multiplications *** various SEUs,the MCN2L 2MS algorithm achieves 14.6734,12.8732,10.9257,15.7790 dB during the artifact removal of RA,EMG,CSA and EBA components with only two ***,this algorithm seems to be better candidate for artifact elimination.

关键词： Adaptive algorithms artifacts brain waves clipped algorithms signal enhancement unit wireless EEG monitoring

Spatial distribution characteristics and mechanism of nonhydrological time-variable gravity in China's Mainland

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Earth and Planetary Physics 2022年第1期6卷 96-107页

作者： Yue Shen QiuYu Wang WeiLong rao WenKe Sun University of Chinese Academy of Sciences Beijing 100049China

the purpose of this study is to explore nonhydrological mass transfer in China's *** this purpose,gravity recovery and climate experiment(GRACE)data were obtained to study the spatial distribution of time variant gravity signals in China's ***,from auxiliary hydrological data processed according to the current hydrological model,a new more comprehensive hydrological model of China's Mainland was ***,the time variant signals of this new hydrological model were removed from the time variant gravity field computed from GRACE data,thus obtaining a description of the nonhydrological mass transfer of China's *** physical sources and mechanisms of the resulting mass transfer are then *** improved,more realistic,hydrological model used here was created by selecting the hydrological components with the best correlations in existing hydrological models,by use of correlation calculation,analysis,and *** improved model includes water in soils and deeper strata,in the vegetation canopy,in lakes,snow,and glaciers,and in other water components(mainly reservoir storage,swamps,and rivers).the spatial distribution of the transfer signals due to nonhydrological mass in China's Mainland was obtained by subtracting the combined hydrological model from the GRACE time-variable gravity *** results show that the nonhydrological signals in China's Mainland collected in GRACE data were mainly positive signals,and were distributed in the Bohai Rim and the northern and eastern parts of the tibetan *** above nonhydrological mass transfer signals have been studied further and are *** results show that the nonhydrological mass migration signals in the Bohai Rim region originate primarily from sea level change and marine sediment *** mass accumulation from Indian plate collision in the tibetan Plateau appears to be the main reason for the increase in the residual gravity field in that region.

关键词： GRACE hydrological model time-variable gravity signal nonhydrological signal