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| 1 | Sol-gel synthesis and characterization of hydroxyapatite nanorods显示文摘In the present study hydroxyapatite (HA) nano-hexagonal rods with 70-90 nm diameter and 400-500 nm length are synthesized using a simple sol-gel route with calcium nitrate and potassium dihydrogenphos-phate as calcium and phosphorus precursors respectively. Deionized water was used as a diluting media for HA sol preparation and ammonia was used to adjust the pH=9. After aging, the HA gel was dried at 60 ℃ and calcined at different temperatures ranging from 300 to 700 ℃. The dried and calcined powders were characterized for phase composition using X-ray diffractrometry, elemental dispersive X-ray and Fourier transform infrared spectroscopy. Rietveld analysis showed the calcined HA powders of high purity with a hexagonal unit cell structure. Calcination yielded HA nanopowders of increased particle size and crystallinity with increase in temperature. The particle size and morphology was studied using transmission electron microscopy. The aspect ratio (length to diameter ratio) of HA nanorods was measured to be between 6 and 7. | Sanosh Kunjalukkal Padmanabhan Avinash Balakrishnan Min-Cheol Chu Yong Jin Lee Taik Nam Kim Seong-Jai Cho | 2009 | Particuology2009,7,6: | 14 |
| 2 | Small RNA Profiling Reveals Phosphorus Deficiency as a Contributing Factor in Symptom Expression for Citrus Huanglongbing Disease显示文摘Huanglongbing (HLB ) 是与类 Candidatus Liberibacter 的细菌被联系的破坏柠檬疾病(Ca。L.) 。强大的诊断工具和管理策略被需要控制 HLB。小 RNA (sRNA ) 玩的主人在调整主人回答到病原体感染的一个重要角色并且为许多人的疾病被用作早诊断的标记,包括癌症。决定是否柠檬 sRNAs 调整主人回答到 HLB, sRNAs 从柠檬 sinensis 被介绍有 Ca 的 10 和 14 星期柱子 grafting。L。asiaticus (Las ) 积极或健康的织物。十新 microRNAs (miRNAs ) , 76 保存 miRNAs,和许多小介入 RNA (siRNAs ) 被发现。几 miRNAs 和 siRNAs 被 Las 感染高度导致,并且能潜在地被开发进 HLB 的早诊断标记。miR399,被磷饥饿在另外的植物种类导致,被与类似于 HLB 的症状引起柠檬 stubborna 疾病的 Las 然而并非 Spiroplasma citri 的感染明确地导致。我们与健康的树相比在 Las 积极的柠檬树上发现了磷的 35% 减小。HLB 积极的香甜的橘子树的适用的磷 oxyanion 答案减少了 HLB 症状严厉并且显著地在西南佛罗里达在 3 年的地试用期间改进了水果生产。我们的分子,生理,并且地数据建议那磷缺乏被连接到 HLB 疾病 symptomology。 | Hongwei Zhao Ruobai Sun Ute Albrecht Chellappan Padmanabhan Airong Wanga Michael D. Coffey Thomas Girke Zonghua Wang Timothy J. Close Mikeal Roose Raymond K. Yokomi Svetlana Folimonova Georgios Vidalakis Robert Rouse Kim D. Bowman Hailing Jin | 2013 | Molecular Plant2013,6,2: | 12 |
| 3 | 静态条件下碳酸盐岩三维孔隙网络的溶蚀改造及其对孔隙结构的影响显示文摘为了确定溶蚀对碳酸盐岩孔隙结构的影响,保持pH值和HCl溶液浓度等参数不变,使用泥质灰岩和颗粒灰岩作为研究样品在不同温度下进行了溶蚀实验、X射线微型CT成像、岩石薄片分析实验。研究确定了碳酸盐岩溶蚀释放的Ca^(2+)浓度与时间的关系;溶蚀前后的孔径分布表明温度和孔径变化之间没有相关性,颗粒灰岩中的孔径变化更显著,说明孔径变化主要受岩石本身的物性(初始孔隙度和渗透率)和不稳定矿物的丰度(与晶体形状、大小和矿物类型有关)控制。2种碳酸盐岩在不同温度下的孔喉半径变化量非常小,为0.003~0.040 mm,增加倍数为1.3~3.5,平均为1.7;孔喉长度变化量为0.05~0.35 mm。孔喉半径、长度和连通性的微小变化对渗透率也有很大影响,渗透率变化量高达1 000×10^(-3)μm^2。 | ANDRIAMIHAJA Spariharijaona PADMANABHAN Eswaran BEN-AWUAH Joel SOKKALINGAM Rajalingam | 2019 | 石油勘探与开发2019,46,2: | 8 |
| 4 | 生物扰动对砂岩储集层物性的影响--以马来西亚沙捞越巴拉姆三角洲为例显示文摘以马来西亚沙捞越巴拉姆三角洲为研究对象,进行取样岩心和薄片分析,结合EDX(能量色散X射线)、FESEM(场发射扫描电镜)、压汞测孔隙度和点状渗透率测量等方法评估生物扰动对储集层孔隙度和渗透率的影响。岩心取自巴拉姆三角洲W-1井和W-6井,分析结果显示,W-1井样品主要发育双杯迹潜穴(Diplocraterion),为强烈—剧烈生物扰动,可见沉积物充填,沉积物充填活动将宿主沉积物中的细粒物质(黏土和有机物)混入潜穴充填物和潜穴衬里,降低沉积物的均质性和分选性,导致潜穴中局部区域孔隙度和渗透率降低;W-6井样品主要发育蛇形迹潜穴(Ophiomorpha),为强烈—剧烈生物扰动,黏土和泥质被清除出潜穴充填物和宿主沉积物,聚集于潜穴衬里,潜穴生物的沉积物清除活动导致潜穴内部沉积充填物的分选性变好、孔隙度和渗透率升高。生物扰动对储集层孔隙度和渗透率的影响由潜穴及其充填物和潜穴活动的类型决定。 | Ben-Awuah Joel Padmanabhan Eswaran | 2015 | 石油勘探与开发2015,42,2: | 7 |
| 5 | Implications of discoveries from genome-wide association studies in current cardiovascular practice显示文摘Genome-wide association studies(GWAS)have identified several genetic variants associated with coronary heart disease(CHD),and variations in plasma lipoproteins and blood pressure(BP).Loci corresponding to CDKN2A/CDKN2B/ANRIL,MTHFD1L,CELSR2,PSRC1 and SORT1 genes have been associated with CHD,and TMEM57,DOCK7,CELSR2,APOB,ABCG5,HMGCR,TRIB1,FADS2/S3,LDLR,NCAN and TOMM40-APOE with total cholesterol.Similarly,CELSR2-PSRC1-SORT1,PCSK9,APOB,HMGCR,NCAN-CILP2-PBX4,LDLR,TOMM40-APOE,and APOC1-APOE are associated with variations in low-density lipoprotein cholesterol levels.Altogether,forty,forty three and twenty loci have been associated with high-density lipoprotein cholesterol,triglycerides and BP phenotypes,respectively.Some of these identified loci are common for all the traits,some do not map to functional genes,and some are located in genes that encode for proteins not previously known to be involved in the biological pathway of the trait.GWAS have been successful at identifying new and unexpected genetic loci common to diseases and traits,thus rapidly providing key novel insights into disease biology.Since genotype information is fixed,with minimum biological variability,it is useful in early life risk prediction.However,these variants explain only a small proportion of the observed variance of these traits.Therefore,the utility of genetic determinants in assessing risk at later stages of life has limited immediate clinical impact.The future application of genetic screening will be in identifying risk groups early in life to direct targeted preventive measures. | Panniyammakal Jeemon Kerry Pettigrew Christopher Sainsbury Dorairaj Prabhakaran Sandosh Padmanabhan | 2011 | World Journal of Cardiology2011,3,7: | 6 |
| 6 | 马来西亚沙捞越盆地东北部第三系石英表面形态特征--对古沉积环境与储集层质量的指示意义显示文摘基于马来西亚沙捞越(Sarawak)盆地Belait组和Lambir组第三系露头样品,分析其石英表面形态,揭示其颗粒表面结构缺陷(源自风化作用和成岩作用)、古沉积环境以及储集层质量之间的相关关系。研究利用岩石薄片进行矿物识别,并观察粒径和结构;利用扫描电镜对样品的表面形态进行表征,以展现石英颗粒表面结构的变化。Belait组砾岩的扫描电镜图像表明其以自形石英晶体为主,常见机械风化缺陷,例如线性断口、贝壳状断口以及擦痕;而Lambir组砂岩中却常见化学风化特征,例如化学蚀痕、蚀坑、溶解坑以及刻痕。基于岩石学、扫描电镜以及CT扫描图像分析的储集层质量评价结果表明,研究区Belait组为高能海岸沉积,潮控特征明显,Lambir组为浅海—三角洲沉积,浪控特征明显;Belait组和Lambir组的储集层质量较差,但Belait组的孔隙度略高于Lambir组。 | Abdullah Musa Ali Eswaran Padmanabhan | 2014 | 石油勘探与开发2014,41,6: | 4 |
| 7 | Slotting Allowances and New Product Introductions显示文摘 | Martin A. Lariviere V. Padmanabhan | 1997 | Marketing Science1997,,2: | 3 |
| 8 | Flexible thermoelectric generator with liquid metal interconnects and low thermal conductivity silicone filler显示文摘Harvesting body heat using thermoelectricity provides a promising path to realizing self-powered,wearable electronics that can achieve continuous,long-term,uninterrupted health monitoring.This paper reports a flexible thermoelectric generator(TEG)that provides efficient conversion of body heat to electrical energy.The device relies on a low thermal conductivity aerogel–silicone composite that secures and thermally isolates the individual semiconductor elements that are connected in series using stretchable eutectic gallium-indium(EGaIn)liquid metal interconnects.The composite consists of aerogel particulates mixed into polydimethylsiloxane(PDMS)providing as much as 50%reduction in the thermal conductivity of the silicone elastomer.Worn on the wrist,the flexible TEGs present output power density figures approaching 35μWcm^(−2)at an air velocity of 1.2 ms^(−1),equivalent to walking speed.The results suggest that these flexible TEGs can serve as the main energy source for low-power wearable electronics. | Viswanath Padmanabhan Ramesh Yasaman Sargolzaeiaval Taylor Neumann Veena Misra Daryoosh Vashaee Michael D.Dickey Mehmet C.Ozturk | 2021 | npj Flexible Electronics2021,5,1: | 3 |
| 9 | Comparison between two methods of drain clamping after total knee arthroplasty显示文摘 | Narayana Prasad Vinod Padmanabhan Arun Mullaji | 2005 | Archives of Orthopaedic and Trauma Surgery2005,,6: | 2 |
| 10 | Ultrafast terahertz emission from emerging symmetry-broken materials显示文摘Nonlinear optical spectroscopies are powerful tools for investigating both static material properties and light-induced dynamics.Terahertz(THz)emission spectroscopy has emerged in the past several decades as a versatile method for directly tracking the ultrafast evolution of physical properties,quasiparticle distributions,and order parameters within bulk materials and nanoscale interfaces.Ultrafast optically-induced THz radiation is often analyzed mechanistically in terms of relative contributions from nonlinear polarization,magnetization,and various transient free charge currents.While this offers material-specific insights,more fundamental symmetry considerations enable the generalization of measured nonlinear tensors to much broader classes of systems.We thus frame the present discussion in terms of underlying broken symmetries,which enable THz emission by defining a system directionality in space and/or time,as well as more detailed point group symmetries that determine the nonlinear response tensors.Within this framework,we survey a selection of recent studies that utilize THz emission spectroscopy to uncover basic properties and complex behaviors of emerging materials,including strongly correlated,magnetic,multiferroic,and topological systems.We then turn to low-dimensional systems to explore the role of designer nanoscale structuring and corresponding symmetries that enable or enhance THz emission.This serves as a promising route for probing nanoscale physics and ultrafast light-matter interactions,as well as facilitating advances in integrated THz systems.Furthermore,the interplay between intrinsic and extrinsic material symmetries,in addition to hybrid structuring,may stimulate the discovery of exotic properties and phenomena beyond existing material paradigms. | Jacob Pettine Prashant Padmanabhan Nicholas Sirica Rohit P.Prasankumar Antoinette J.Taylor Hou-Tong Chen | 2023 | Light(Science & Applications)2023,12,7: | 2 |
| 11 | Nonlinear Gravitational Clustering: Dreams of a Paradigm显示文摘 | Padmanabhan T Engineer S | 1998 | ApJ1998,493,: | 2 |
| 12 | Information distortion in a supply chain: The bullwhip effect 显示文摘 | Lee Hau L Padmanabhan V S Whang Seungjin | 1997 | Management Science1997,43,: | 2 |
| 13 | Expression of human gelatinase B in Pichia pastoris显示文摘 | Roy N Padmanabhan S Smith M | 1999 | Protein Expression Purefication1999,16,: | 2 |
| 14 | Effect of process parameters on springback behaviour during air bending of electrogalvanised steel sheet显示文摘This work aims to study the springback behaviour of electrogalvanised (EG) steel sheets during the air bending process.Experiments have been conducted to analyse the influence of various parameters such as coating thickness,orientation of the sheet,punch radius,die radius,die opening,punch velocity,and punch travel on springback behaviour.It is established that the springback increases with increasing coating thickness,punch radius,punch travel,die radius,die opening,and punch velocity.The 90° orientation exhibits higher springback than 0° orientation. | Durairaj VASUDEVAN Rajumani SRINIVASAN Palani PADMANABHAN | 2011 | Journal of Zhejiang University-Science A(Applied Physics & Engineering)2011,12,3: | 2 |
| 15 | 老年高血压患者服用别嘌呤醇后血压的变化显示文摘尿酸可降低青少年血压,表明其在高血压发生发展的病理生理过程中可能起到直接的作用。但是其在老年人高血压中是否扮演同样的角色尚不清楚。该研究通过分析英国临床实践研究数据库的资料,以确定服用别嘌呤醇后血压的改变。方法:纳入〉65岁的使用别嘌呤醇治疗、且有治疗前和治疗时血压读数记录的高血压患者。同时纳入具有可比性的人群作为对照。 | 刘莉 叶鹏 Beattie CJ Fulton RL Higgins P Padmanabhan S McCallum L Walters MR Dominiczak AF Touyz RM Dawson J | 2014 | 中华高血压杂志2014,22,10: | 2 |
| 16 | Cotransla- tional membrane insertion of the serine proteinase pre- cursor NS2B-NS3 (Pro) of dengue virus type 2 is re- quired for efficient in vitro processing and is mediated through the hydrophobic regions of NS2B显示文摘 | CIum S Ebner K E and Padmanabhan R | 1997 | J Biol Chem1997,272,30: | 1 |
| 17 | Unde/standing cor- neal topography 显示文摘 | Rao SK Padmanabhan P | 2000 | Curr Opin Ophthalmol2000,11,4: | 1 |
| 18 | Solid-state photochemistry of nitro compounds: structure-reactivity correlations显示文摘 | Padmanabhan K Dopp D Venkatesan K | 1986 | J Chem Soc Perkin Trans1986,2,6: | 1 |
| 19 | Interfacial Studies on Surface Modified Kevlar Fibre/epoxy Matrix Composites 显示文摘 | Yue C Y Padmanabhan K | 1999 | Composites1999,30,: | 1 |
| 20 | Information distortion in a supply chain:The bullwhip effect显示文摘 | Lee H L Padmanabhan V Whang S | 1997 | Management Science1997,43,4: | 1 |