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    题名 作者 年代 出处 被引量
1颅内动静脉畸形合并动脉瘤的血管内治疗显示文摘目的 总结血管内治疗颅内动静脉畸形 (AVM) 合并动脉瘤的经验。 方法 回顾性分析25例颅内AVM合并动脉瘤的临床资料。所有病例均经全脑血管造影 (DSA) 确诊,按照Redekop分型进行治疗。 结果 动脉瘤完全栓塞23例,部分栓塞2例。畸形血管团完全消失7例,消失90%以上9例,消失80%~90% 7例,消失80%以下2例。栓塞后手术切除12例,栓塞后伽玛刀治疗6例。所有病人均未出现与血管内治疗相关的并发症。随访25例,时间0.5~3年,无再次出血及死亡。DSA复查18例,其中动脉瘤和畸形血管团均不显影14例,动脉瘤不显影但畸形血管团少许残留4例。 结论 血管内治疗是颅内AVM合并动脉瘤安全、有效的治疗方法,Redekop分型可对其治疗提供指导。张紫寅 王朝华 谢晓东 张昌伟 范锋 Sarvesh Gyawali Srijana Bista 2011中国微侵袭神经外科杂志2011,16,12:14
2微弹簧圈栓塞难治性外伤性颈动脉海绵窦瘘的疗效观察显示文摘目的探讨和研究微弹簧圈血管内栓塞难治性外伤性颈动脉海绵窦瘘的疗效。方法回顾13例用微弹簧圈栓塞治疗的难治性外伤性颈动脉海绵窦瘘患者。所有患者均有持续性颅内血管杂音、搏动性突眼及球结膜充血水肿。均采用微弹簧圈栓塞治疗,其中经动脉入路9例,经眼上静脉入路4例。结果 12例术后造影瘘口消失且颈内动脉通畅。1例填入5枚微弹簧圈后,微导管脱离瘘口,反复尝试不能再次进入,术中造影瘘口仍显影,1周后球囊阻断试验阴性后闭塞颈内动脉主干。术中1例微弹簧圈解旋,将解旋部分置于患侧颈外动脉固定。术后3~12个月(平均7.5个月)对10例患者随访了脑血管造影复查。1例复发,原因多与弹簧圈解旋后长期服用抗血小板药物均有关。结论对于球囊闭塞困难的难治性外伤性颈动脉海绵窦瘘,微弹簧圈栓塞安全、有效。张紫寅 王朝华 谢晓东 张昌伟 范锋 Sarvesh Gyawali Srijana Bista 2011介入放射学杂志2011,20,7:10
3超选择性微导管插管术前栓塞富血供脑膜瘤28例分析显示文摘目的探讨超选择性微导管插管术前栓塞富血供脑膜瘤的效果与治疗经验。方法 28例富血供脑膜瘤患者(男11例,女17例,年龄14~63岁,平均51.2岁),先行全脑血管造影(DSA),随后将微导管超选至肿瘤的供血动脉进行栓塞。栓塞材料包括聚乙烯醇(PVA)颗粒、弹簧圈及液态栓塞系统(商品名:Onyx)胶,可根据术中情况联合使用。栓塞后3~5d行外科手术切除肿瘤。结果栓塞术后,肿瘤染色完全消失16例,大部分消失9例,部分消失3例。无与介入栓塞相关的并发症发生。肿瘤全切26例,次全切除2例。术中肿瘤出血明显减少,其中11例患者切除瘤体时基本未出血,平均出血量约500mL,手术时间较未行术前栓塞患者明显缩短。结论微导管超选择插管栓塞富血供脑膜瘤能有效的闭塞肿瘤的血管床,有效地减少外科手术中的出血,可作为富血供脑膜瘤切除术前的一种重要的、常规性的辅助措施。张紫寅 谢晓东 王朝华 张昌伟 范锋 Sarvesh Gyawali Srijana Bista 2013重庆医学2013,42,19:5
4喜玛拉雅嘎瓦耳地区的坡向对温带自然森林的森林成分,群落结构和土壤特性的影响(英文)显示文摘在喜玛拉雅嘎瓦耳(Garhwal Himalaya)地区,选择7种温带(1500 to 3100 m,a.s.l.)森林类型,研究不同坡面(东北,西北,东南,西南)对自然森林的森林成分、群落结构和土壤特性的影响。在每种森林中自由采样。为了阐明研究不同坡面(东北、西北、东南、西南)对天然森林的森林成分、群落结构和土壤特性的影响,利用标准统计软件计算多种指标,如,重要价值指标、Shannon-Wiener多样性指数、优势辛普森浓度、辛普森多样性指数、种均匀度和物种丰富度指数。在每种森林中采集复合土壤样品,分析土壤的物理化学特性、水分含量、持水量、pH、有机碳、磷、钾和有效氮含量。结果表明,北坡森林的总基盖度(高山栎林Quercus semecarpifolia为74.4 m2·ha-1)、优势度(长叶松林Pinus roxburghii为0.85)和树种多样(石斛蟹Quercus floribunda为1.81)均高于其他坡位森林,北坡森林土壤中的水分含量(白橡树Quercusleucotrichophora为40.8%)、持水量(藏柏Cupressus torulos为48.9%)、有机碳(雪松Cedrus deodara为3.8%)、磷(白橡树Quercus leucotrichophora为31.9 kg·ha-1)和氮(西藏长叶松林Pinus roxburghii为1.0%)均比其他坡位土壤值高。因此,北坡森林的生产力较高。C.M.Sharma N.P.Baduni Sumeet Gairola S.K.Ghildiyal Sarvesh Suyal 2010Journal of Forestry Research2010,21,3:4
5Composition and diversity of five major forest types in moist temperate climate of the western Himalayas显示文摘The present study was undertaken in five major forest types (dominated by Quercus semecarpifolia, Quercus floribunda, Acer acuminatum, Abies pindrow and Aesculus indica, respectively) between 2400 and 2850 m a.s.l. in a moist temperate forest of the Mandal-Chopta area in the Garhwal region of Uttarakhand, India. The aim was to assess the variation in composition and diversity in different vegetation layers, i.e., herb, shrub and tree, among these five forest types. Diversity indices, such as the Shannon-Wiener diversity index, density, total basal cover, Simpson’s concentration of dominance index, Simpson’s diversity index, Pielou’s equitability, species richness, species heterogeneity and β-diversity, were calculated to understand community structures. Dominance-diversity curves were drawn to ascertain resource apportionment among various species in different forest types.Sumeet GAIROLA Chandra M. SHARMA Sarvesh SUYAL Sunil K. GHILDIYAL 2011Forestry Studies in China2011,13,2:4
6柚皮苷改善束缚性应激引起的小鼠生化指标及行为变化的一氧化氮调节机制(英文)显示文摘目的:研究柚皮苷对束缚性应激引起的小鼠生化指标改变、行为变化及线粒体功能紊乱的影响。方法:将小鼠按照体质量随机分组,分别给予不同药物治疗14 d。在第15天让所有小鼠接受束缚性应激刺激6 h,然后在接受各种不同的行为测试后处死。取小鼠的大脑匀浆进行各种生化指标测量和线粒体功能分析。结果:6 h的急性束缚性应激刺激能显著改变小鼠的行为(焦虑和记忆),引起生化指标变化和线粒体功能紊乱。用柚皮苷预处理(50或100 mg/kg口服)14 d则能显著减轻急性束缚性应激刺激引起的小鼠行为和生化指标变化以及线粒体功能紊乱(P<0.05);而使用一氧化氮的前体左旋精氨酸预处理(50 mg/kg腹腔注射)可以拮抗柚皮苷的保护效应(P<0.05)。此外,采用左旋精氨酸甲酯预处理(5 mg/kg腹腔注射)则导致柚皮苷的保护效应增强。结论:柚皮苷对束缚性应激刺激引起的小鼠行为和生化指标变化以及线粒体功能紊乱的保护作用与氮能神经通路有关。Gollapalle L.Viswanatha Hanumanthappa Shylaja K.Sadashiva Sandeep Rao Yathiraj Ashwini V.Ramaiah Santhosh Kumar C.Gangadharaiah Mohan Venkate Gowda Sunil M.Venkateshappa Sarvesh Kumar Subbanna Rajesh 2011中西医结合学报2011,9,11:3
7A robust approach to identify roof bolts in 3D point cloud data captured from a mobile laser scanner显示文摘Roof bolts such as rock bolts and cable bolts provide structural support in underground mines.Frequent assessment of these support structures is critical to maintain roof stability and minimise safety risks in underground environments.This study proposes a robust workflow to classify roof bolts in 3 D point cloud data and to generate maps of roof bolt density and spacing.The workflow was evaluated for identifying roof bolts in an underground coal mine with suboptimal lighting and global navigation satellite system(GNSS)signals not available.The approach is based on supervised classification using the multi-scale Canupo classifier coupled with a random sample consensus(RANSAC)shape detection algorithm to provide robust roof bolt identification.The issue of sparseness in point cloud data has been addressed through upsampling by using a moving least squares method.The accuracy of roof bolt identification was measured by correct identification of roof bolts(true positives),unidentified roof bolts(false negatives),and falsely identified roof bolts(false positives)using correctness,completeness,and quality metrics.The proposed workflow achieved correct identification of 89.27%of the roof bolts present in the test area.However,considering the false positives and false negatives,the overall quality metric was reduced to 78.54%.Sarvesh Kumar Singh Simit Raval Bikram Banerjee 2021International Journal of Mining Science and Technology2021,31,2:3
8A review of laser scanning for geological and geotechnical applications in underground mining显示文摘Laser scanning can provide timely assessments of mine sites despite adverse challenges in the operational environment.Although there are several published articles on laser scanning,there is a need to review them in the context of underground mining applications.To this end,a holistic review of laser scanning is presented including progress in 3D scanning systems,data capture/processing techniques and primary applications in underground mines.Laser scanning technology has advanced significantly in terms of mobility and mapping,but there are constraints in coherent and consistent data collection at certain mines due to feature deficiency,dynamics,and environmental influences such as dust and water.Studies suggest that laser scanning has matured over the years for change detection,clearance measurements and structure mapping applications.However,there is scope for improvements in lithology identification,surface parameter measurements,logistic tracking and autonomous navigation.Laser scanning has the potential to provide real-time solutions but the lack of infrastructure in underground mines for data transfer,geodetic networking and processing capacity remain limiting factors.Nevertheless,laser scanners are becoming an integral part of mine automation thanks to their affordability,accuracy and mobility,which should support their widespread usage in years to come.Sarvesh Kumar Singh Bikram Pratap Banerjee Simit Raval 2023International Journal of Mining Science and Technology2023,33,2:2
9A review on emerging smart technological innovations in healthcare sector for increasing patient's medication adherence显示文摘In this paper,we reviewed the various advanced technologies and methods that could help patients for measuring ad herence of patients.There exist intelligent technologies that are available for measuring medication adherence,including medication event monitoring system(MEMS@),smart blister packs,radio frequency identifcation(RFID)embedded smart drawers,and wisely aware RFID dosage(WARD)system,Utilization of these advanced technologies and systems have aided in enhancing the adherence to a greater extent.For example,MEMS@refers to the electronic cap that counts the number of bottles opened,but it can be employed only with bottles.Smart blisters are pharmaceutical packagings that possess the capability of monitoring when a pill or tablet is taken out of its packing.All those intelligent technologies can help in active monitoring of patients regarding adherence and capable of eradicating various medication errors due to which adherence is affected.Pankaj Pal Sharda Sambhakar Vivek Dave Shailendra Kumar Paliwal Sarvesh Paliwal Monika Sharma Aadesh Kumare Nidhi Dhama 2021Global Health Journal2021,5,4:2
10Is myopia a protective factor against central serous chorioretinopathy?显示文摘AIM: To evaluate if any association exists between central serous chorioretinopathy(CSCR) and the refractive status of the eye.· METHODS: This retrospective, institutional, case control study included 499 patients, wherein 262 patients diagnosed as acute CSCR, were compared with an age and gender matched control group of 237 patients. All patients were evaluated with a detailed systemic and ocular history, objective and subjective refractions for both eyes and complete ocular examination by a retina specialist, at all visits. Optical coherence tomography confirmed the diagnosis of CSCR.·RESULTS: The mean age was found to be 40±7y in the study group(Group 1) compared to 38±10y in the control group(Group 2). Most common refractive status in the study group, was emmetropia seen in 191 patients(72.9%), followed by hypermetropia seen in 47 patients(17.9%) and astigmatism seen in 21 patients(8.0%). Only3 subjects(1.1%) had myopia, which was less than or equal to 1.0 D, compared to 70 subjects(29.5%) in the control group, suggesting a statistically significant lower incidence of CSCR among the myopic patients(P <0.0001). With respect to the systemic factors, 26(9.9%)patients were using systemic steroids in the study group(Group 1) compared to none in the control group(Group 2)suggesting a statistically significant association of CSCR with systemic steroid use(P <0.05). No other significant systemic risk factors were noted.· CONCLUSION: Though CSCR is a multifactorial disease, myopia serves as a protective factor for CSCR.Thus, myopic eyes are less likely to develop CSCR.Since both retinal pigment epithelium(RPE) and choriocapillaris are postulated in the pathogenesis of CSCR, chorio-retinal thinning and atrophy seen in myopic eyes are less likely to cause CSCR.George J.Manayath Saurabh Arora Hardik Parikh Parag K.Shah Sarvesh Tiwari Venkatapathy Narendran 2016International Journal of Ophthalmology(English edition)2016,9,2:2
11On-current modeling of short-channel double-gate(DG) MOSFETs with a vertical Gaussian-like doping profile显示文摘An analytic drain current model is presented for doped short-channel double-gate MOSFETs with a Gaussian-like doping profile in the vertical direction of the channel.The present model is valid in linear and saturation regions of device operation.The drain current variation with various device parameters has been demonstrated. The model is made more physical by incorporating the channel length modulation effect.Parameters like transconductance and drain conductance that are important in assessing the analog performance of the device have also been formulated.The model results are validated by numerical simulation results obtained by using the commercially available ATLASTM,a two dimensional device simulator from SILVACO.Sarvesh Dubey Pramod Kumar Tiwari S.Jit 2013Journal of Semiconductors2013,34,5:2
12Regeneration dynamics of dominant tree species along an altitudinal gradient in moist temperate valley slopes of the Garhwal Himalaya显示文摘The present study was undertaken in moist temperate forest of Mandal-Chopta area in the Garhwal region of Uttarakhand, India. The aim of the present study was to understand the regeneration dynamics of the dominant tree species along an altitudinal gradient in naturally regenerating, restricted access forest. The overall regeneration status was fairly high in the study area. Most of the native canopy and undercanopy dominants had frequent reproduction and expanding populations, which suggests the stability of forest structure/composition and further expansion of dominant species. The overall regeneration of trees in the forest had a greater contribution of middle and understorey species. Because of infrequent reproduction and declining populations of some of the dominant native species viz., Abies pindrow, Alnus nepalensis and Betula alnoides, structural/compositional changes in the future are expected in respective forests dominated by them. Abies pindrow and Taxus baccata need immediate attention by forest managers for their survival in the area. Seedlings were found to be more prone to competition from herb and shrubs than saplings.Sumeet Gairola C.M.Sharma S.K.Ghildiyal Sarvesh Suyal 2012Journal of Forestry Research2012,23,1:2
13Experimental Investigations on Laminated Rubber Bearings显示文摘Sarvesh Kumar Jain Shashi Kant Thakkar 2005Bulletin of Earthquake Engineering2005,,1:2
14Novel Drug Release Profiles from Micellar Solutions of PLA--PEO--PLA Tri-block Copolymers显示文摘SARVESH K Agrawal NAOMI Sanabria--DeLong JEANNINE M Coburn 2006Journal of Controlled Release2006,112,:1
15Expression stability of two housekeeping genes (18S rRNA and G3PDH) during in vitro maturation of follicular oocytes in buffalo (Bubalus bubalis)显示文摘Ajay P S A Sarvesh R Sachinandan D E 2008Animal Reproduction Science2008,103,12:1
16Novel drug release profiles from micellar solutions of PLA-PEO-PLA triblock copolymers 显示文摘Sarvesh KA Naomi SD Jeannine MC 2006J Control Release2006,112,:1
17Design and evaluation of a hybrid system for detec- tion and prediction of faults in electrical transformers O- riginal Research 显示文摘Samaher A1-Janabi Sarvesh Rawat Ahmed Patel 2015International Journal of Electrical Power & Energy Systems2015,67,:1
18Polyaxial strength criterion and closed-form solution for squeezing rock conditions显示文摘In this paper,a nonlinear strength criterion is proposed using the average of intermediate(σ2)and minor(σ3)principal stresses in place of σ3 in Ramamurthy(1994)’s strength criterion.The proposed criterion has the main advantages of negligible variation of strength parameters with confining stress and ability to link with conventional strength parameters.Additionally,a new closed-form solution based on the proposed criterion is derived and validated for Chhibro Khodri tunnel.Further,analytical solutions including Singh’s elastoplastic theory,Scussel’s approach,and closed-form solutions based on conventional and modified Ramamurthy(2007)criteria are compared with the results of proposed approach.It is shown that the in situ squeezing pressure predictions made by the proposed approach are more accurate.Also,a parametric study of the present analytical solution is carried out,which displays explicit dependency of tunnel stability on internal support pressure and tunnel depth.The influence of tunnel geometry is observed to be dependent on the applied support pressure.Rupesh Kumar Verma Sarvesh Chandra 2020Journal of Rock Mechanics and Geotechnical Engineering2020,12,3:1
19A survey on activity recognition and behavior understanding in video surveillance 显示文摘SARVESH V ANUPAM A 2013Vision Com- puter2013,29,10:1
20Numerical simulation of Gaseous microflows by lattice Boltzmann method显示文摘Perumal D A Krishna V Sarvesh G 2009International Journal of Recent Trends in Engineering2009,1,5:1
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