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536篇 您的检索式:作者名="Ramachandra"
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1Catharanthus roseus:a natural source for the synthesis of silver nanoparticles显示文摘Objective:To develop a simple rapid procedure for bioreduction of silver nanoparticles(AgNPs)using aqueous leaves extracts of Catharanthus roseus(C.roseus).Methods:Characterization were determined by using UV-Vis spectrophotometry,scanning electron microscopy(SEM),energy dispersive X-ray and X-ray diffraction.Results:SEM showed the formation of silver nanoparticles with an average size of 67 nm to 48 nm.X-ray diffraction analysis showed that the particles were crystalline in nature with face centered cubic geometry.Conclusions:C.roseus demonstrates strong potential for synthesis of silver nanoparticles by rapid reduction of silver ions(Ag^+ to Ag^0).This study provides evidence for developing large scale commercial production of value-added products for biomedical/nanotechnology-based industries.Mukunthan KS Elumalai EK Trupti N Patel V Ramachandra Murty 2011Asian Pacific Journal of Tropical Biomedicine2011,1,4:4
2Characteristics of landslide in Koshi River Basin,Central Himalaya显示文摘Koshi River basin, which lies in the Central Himalayas with an area of 71,500 km2, is an important trans-boundary river basin shared by China, Nepal and India. Yet, landslide-prone areas are all located in China and Nepal, imposing alarming risks of widespread damages to property and loss of human life in both countries. Against this backdrop, this research, by utilizing remote sensing images and topographic maps, has identified a total number of 6877 landslides for the past 23 years and further examined their distribution, characteristics and causes. Analysis shows that the two-step topography in the Himalayan region has a considerable effect on the distribution of landslides in this area. Dense distribution of landslides falls into two regions: the Lesser Himalaya(mostly small and medium size landslides in east-west direction) and the TransitionBelt(mostly large and medium size landslides along the river in north-south direction). Landslides decrease against the elevation while the southern slopes of the Himalayas have more landslides than its northern side. Change analysis was carried out by comparing landslide distribution data of 1992, 2010 and 2015 in the Koshi River basin. The rainfallinduced landslides, usually small and shallow and occurring more frequently in regions with an elevation lower than 1000 m, are common in the south and south-east slopes due to heavy precipitation in the region, and are more prone to the slope gradient of 20°~30°. Most of them are distributed in Proterozoic stratum(Pt3ε, Pt3 and Pt2-3) and Quaternary stratum. While for earthquake-induced landslides, they are more prone to higher elevations(2000~3000 m) and steeper slopes(40°~50°).ZHANG Jian-qiang LIU Rong-kun DENG Wei KHANAL Narendra Raj GURUNG Deo Raj MURTHY Manchiraju Sri Ramachandra 2016Journal of Mountain Science2016,13,10:4
3Rare presentation of intralobar pulmonary sequestration associated with repeated episodes of ventricular tachycardia显示文摘Arterial supply of an intralobar pulmonary sequestration(IPS) from the coronary circulation is extremely rare. A significant coronary steal does not occur because of dual or triple sources of blood supply to sequestrated lung tissue. We present a 60-year-old woman who presented to us with repeated episodes of monomorphic ventricular tachycardia(VT) in last 3 mo. Radio frequency ablation was ineffective. On evaluation, she had right lower lobe IPS with dual arterial blood supply, i.e., right pulmonary artery and the systemic arterial supply from the right coronary artery(RCA). Stress myocardial perfusion scan revealed significant inducible ischemia in the RCA territory. Coronary angiogram revealed critical stenosis of proximal RCA just after the origin of the systemic artery supplying IPS. The critical stenosis in the RCA was stented. At 12 mo follow-up, she had no further episodes of VT or angina.D Sheshagiri Rao Ramachandra Barik 2016World Journal of Cardiology2016,8,7:3
4Sleep, circadian dysrhythmia, obesity and diabetes显示文摘Synchrony of biological processes with environmental cues developed over millennia to match growth, reproduction and senescence. This entails a complex interplay of genetic, metabolic, chemical, light, hormonal andhedonistic factors across life forms. Sleep is one of the most prominent rhythms where such a match is established. Over the past 100 years or so, it has been possible to disturb the synchrony between sleep-wake cycle and environmental cues. Development of electric lights, shift work and continual accessibility of the internet has disrupted this match. As a result, many noncommunicable diseases such as obesity, insulin resistance, type 2 diabetes, coronary artery disease and malignancies have been attributed in part to such disruption. In this presentation a review is made of the origin and evolution of sleep studies, the pathogenic mediators for such asynchrony, clinical evidence and relevance and suggested management options to deal with the disturbances.Gumpeny Ramachandra Sridhar Narasimhadevara Santhi Nirmala Sanjana 2016World Journal of Diabetes2016,7,19:3
5Confinement Effect of Glass Fabrics Bonded with Cementitious and Organic Binders显示文摘Smitha Gopinath Nagesh R. Iyer Ravindra Gettu G.S. Palani A. Ramachandra Murthy 2011Procedia Engineering2011,,:2
6Inferior dislocation of the hip: a case series and litera- ture review显示文摘劣等的新潮的脱臼是在所有新潮的脱臼之中的最稀罕的类型。很少的案例在英语文学被报导了。大多数更早报导的案例包含小儿科的年龄组。没有单个案例系列能在英语文学被发现。我们与改变的年龄侧面遇到了劣等的新潮的脱臼的 4 个案例(范围 10 ~ 56 年,平均数 33.8 年) 。有这疾病的病人通常抱怨了疼痛并且使大腿弯曲并且诱拐。诊断能被表明腿节的长轴从平行关于脊骨在排列变化到一个角度的拍证实几乎 90 ° 离开轴。在我们的系列,关门了减小在所有病人,在镇静下面的任何一个或一般麻醉是成功的。为 6 个星期的经期的皮拖拉他们在所有被使用,后续揭示了没有疼痛、稳定、活动的臀部。在这研究我们在场与讨论生产劣等的新潮的脱臼的各种各样的模式和机制的文学的评论一起的这些案例的细节。Sameer Aggarwal Vishal Kumar Kishan Ramachandra Bhagwat Vokkaleri Shankaranarayana Shashikanth Holalu Shankaralingegowda Ravikumar 2012Chinese Journal of Traumatology2012,15,5:2
7Drought-induced responses of photosynthesis and antioxidant metabolism in higher plants显示文摘Attipalli Ramachandra Reddy Kolluru Viswanatha Chaitanya Munusamy Vivekanandan 2004Journal of Plant Physiology2004,,11:2
8Large deflection analysis of bimodulus annular and circular plates using finite elements 显示文摘Srinivasan R S Ramachandra L S 1989Computers & Structures1989,31,5:2
9Inflammatory pseudotumor of soft tissue: A clinicopathological and immunohistochemical analysis of 18 cases显示文摘Ramachandra S Hollowood K Bisceglia M 1995Histopathology1995,27,:1
10Present and prospective role of bioenergy in regional energy system显示文摘Ramachandra T V Joshi N V Subramanian D K 2000Renewable Sustainable Energy Rev2000,4,4:1
11Tmmunohistochemical distrbution of C-erbB-2 in situ breast carcinoma dedailed morphological analysis 显示文摘11,Ramachandra S Machin L Ashley S 1990J1990,161,1:1
12Urban sprawl: metrics, dynamics and modeling using GIS 显示文摘Sudhira H S Ramachandra T V Jag adish K S 2004International Journal of Applied Earth Observation and Geoinformation2004,5,:1
13Plant cell cultures : chemical factories of secondary metabolites 显示文摘Ramachandra R S Ravishankar G A 2002Biotechnology Advances2002,20,:1
14Urban sprawl: Metrics, dynamics and modeling using GIS 显示文摘Sudhira H S Ramachandra T V Jagadish K S 2004International Journal of Applied Earth Observation and Geoinformation2004,5,1:1
15Analysis of natural half-wave-length power transmission显示文摘Parabhakara F S Parthasarathy K Ramachandra H N 1969IEEE Trans on Power Apparatus and Systems1969,88,12:1
16Axisymmetric nonlinear dynamic response of bimodulous annular plates显示文摘Srinivasan R S Ramachandra L S 1990Journal of Vibration and Acoustics1990,112,2:1
17Simulink Modeling for Vehicle Simulator Design显示文摘Chandrakantha Ursu Ramachandra Bhat Ramkumar Damodaran 2011SAE Paper2011,,1:1
18Production of astaxanthin in Haermatococcus pluvialis cultured in various media 显示文摘 Sarada R Ramachandra R 1999Bioresour Technol1999,68,:1
19Performance of tuned half-wave-length power transmission lines显示文摘Parabhakara F S Parthasarathy K Ramachandra H N 1969IEEE Trans on Power Apparatus and Systems1969,88,12:1
20Analysis of natural half-wave-length power transmission lines显示文摘Prabhakara F S Parthasarathy K Ramachandra Rao H N 1969IEEE Trans on Power Apparatus and Systems1969,88,12:1
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