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| 1 | Anterior resection for rectal carcinoma-risk factors for anastomotic leaks and strictures显示文摘AIM:To determine the incidence and factors responsible for anastomotic leaks and stricture following anterior resection(AR)and its subsequent management.METHODS:Retrospective analysis of data from 108 patients with rectal carcinoma who underwent AR or low anterior resection(LAR)to identify the various preoperative,operative,and post operative factors that might have influence on anastomotic leaks and strictures.RESULTS:There were 68 males and 40 females with an average of 47 years(range 21-75 years).The median distance of the tumor from the anal verge was 8 cm(range 3-15 cm).Sixty(55.6%)patients underwent handsewn anastomosis and 48(44.4%)were stapled.The median operating time was 3.5 h(range2.0-7.5 h).Sixteen(14.6%)patients had an anastomotic leak.Among these,11 patients required reexploration and five were managed expectantly.The anastomotic leak rate was similar in patients with and without diverting stoma(8/60,13.4%with stoma and 8/48;16.7%without stoma).In 15(13.9%)patients,resection margins were positive for malignancy.Ninteen(17.6%)patients developed anastomotic strictures at a median duration of 8 mo(range 3-20 mo).Among these,15 patients were successfully managed with per-anal dilatation.On multivariate analysis,advance age(>60 years)was the only risk factor for anastomotic leak(P=0.004).On the other hand,anastomotic leak(P=0.00),mucin positive tumor(P =0.021),and lower rectal growth(P=0.011)were found as risk factors for the development of an anastomotic stricture.CONCLUSION:Advance age is a risk factor for an anastomotic leak.An anastomotic leak,a mucin-secreting tumor,and lower rectal growth predispose patients to develop anastomotic strictures. | Ashok Kumar Ram Daga Paari Vijayaragavan Anand Prakash Rajneesh Kumar Singh Anu Behari Vinay K Kapoor Rajan Saxena | 2011 | World Journal of Gastroenterology2011，17，11： | 28 |
| 2 | Critical review of EPS production, synthesis and composition for sludge flocculation显示文摘Extracellular polymeric substances(EPS) produced by microorganisms represent biological macromolecules with unfathomable potentials and they are required to be explored further for their potential application as a bioflocculant in various wastewater sludge treatment. Although several studies already exist on biosynthetic pathways of different classical biopolymers like alginate and xanthan, no dedicated studies are available for EPS in sludge. This review highlights the EPS composition, functionality, and biodegradability for its potential use as a carbon source for production of other metabolites. Furthermore, the effect of various extraction methods(physical and chemical) on compositional, structural, physical and functional properties of microbial EPS has been addressed. The vital knowledge of the effect of extraction method on various important attributes of EPS can help to choose the suitable extraction method depending upon the intended use of EPS. The possible use of different molecular biological techniques for enhanced production of desired EPS was summarized. | Klai Nouha Ram Saurabh Kumar Sellamuthu Balasubramanian Rajeshwar Dayal Tyagi | 2018 | Journal of Environmental Sciences2018，30，4： | 19 |
| 3 | A review on synthesis of graphene,h-BN and MoS2 for energy storage applications:Recent progress and perspectives显示文摘The significance of graphene and its two-dimensional(2D)analogous inorganic layered materials especially as hexagonal boron nitride(h-BN)and molybdenum disulphide(MoS2)for“clean energy”applications became apparent over the last few years due to their extraordinary properties.In this review article we study the current progress and selected challenges in the syntheses of graphene,h-BN and MoS2 including energy storage applications as supercapacitors and batteries.Various substrates/catalysts(metals/insulator/semiconducting)have been used to obtain graphene,h-BN and MoS2 using different kinds of precursors.The most widespread methods for synthesis of graphene,h-BN and MoS2 layers are chemical vapor deposition(CVD),plasma-enhanced CVD,hydro/solvothermal methods,liquid phase exfoliation,physical methods etc.Current research has shown that graphene,h-BN and MoS2 layered materials modified with metal oxide can have an insightful influence on the performance of energy storage devices as supercapacitors and batteries.This review article also contains the discussion on the opportunities and perspectives of these materials(graphene,h-BN and MoS2)in the energy storage fields.We expect that this witen review article including recent research on energy storage will help in generating new insights for further development and practical applications of graphene,h-BN and MoS2 layers based materials. | Rajesh Kumar Sumanta Sahoo Ednan Joanni Rajesh Kumar Singh Ram Manohar Yadav Rajiv Kumar Verma Dinesh Pratap Singh Wai Kian Tan Angel Perez del Pino Stanislav A.Moshkalev Atsunori Matsuda | 2019 | Nano Research2019，12，11： | 12 |
| 4 | Anti-HBc screening in Indian blood donors:Still an unresolved issue显示文摘AIM:To study the seroprevalence of antibody to hepatitis B core antigen (anti-HBc) in healthy blood donors negative for HBsAg and to evaluate whether anti-HBc detection could be adopted in India as a screening assay for HBV in addition to HBsAg. METHODS: A total of 1700 serum samples collected from HBsAg-negative healthy blood donors were tested for the presence of anti-HBc antibody (IgM + IgG). All samples reactive for anti-HBc antibody were then investigated for presence of anti-HBs and for liver function tests (LFTs). One hundred serum samples reactive for anti-HBc were tested for HBV DNA by PCR method. RESULTS: Out of 1700 samples tested, 142 (8.4%) blood samples were found to be reactive for anti-HBc. It was signif icantly lower in voluntary (6.9%) as compared to replacement donors (10.4%, P = 0.011). Seventy- two (50.7%) anti-HBc reactive samples were also reactive for anti-HBs with levels > 10 mIU/mL and 70 (49.3%) samples were non-reactive for anti-HBs, these units were labeled as anti-HBc-only. These 142 anti-HBc reactive units were also tested for liver function test. HBV DNA was detected in only 1 of 100 samples tested. CONCLUSION: Keeping in view that 8%-18% of donor population in India is anti-HBc reactive, inclusion of anti- HBc testing will lead to high discard rate. Anti-HBs as proposed previously does not seem to predict clearance of the virus. Cost effectiveness of introducing universalanti-HBc screening and discarding large number of blood units versus considering ID NAT (Individual donor nuclic acid testing) needs to be assessed. | Hari Krishan Dhawan Neelam Marwaha Ratti Ram Sharma Yogesh Chawla Beenu Thakral Karan Saluja Sanjeev Kumar Sharma Manish K Thakur Ashish Jain | 2008 | World Journal of Gastroenterology2008，14，34： | 8 |
| 5 | Evaluation of electrochemical impedance and biocorrosion characteristics of as-cast and T4 heat treated AZ91 Mg-alloys in Ringer’s solution显示文摘The present study aims at understanding the electrochemical impedance and biocorrosion characteristics of AZ91 Mg-alloy in Ringer’s solution.As-cast AZ91 Mg-alloy was subjected to T4 heat treatment in a way to homogenize its microstructure by dissolving most of theβ-Mg 17 Al 12 phase at the vicinity of grain boundaries.The electrochemical impedance and biocorrosion performances of these two different microstructures(as-cast and T4 heat treated AZ91 Mg-alloys)in Ringer solution were evaluated by electrochemical impendence spectroscopy,potentiodynamic polarization and weight loss method.EIS spectra showed that both microstructures exhibit similar dynamic response as a function of the immersion time;however,the value of impedance and maximum phase angle are about 50%higher in as-cast AZ91 Mg-alloy as compared to that of homogenized AZ91 Mg-alloy.Weight loss measurement indicated that corrosion resistance of as-cast AZ91 was significantly better than that of homogenized AZ91.Microstructural and XRD analysis revealed that as-cast AZ91 contains a passive film of MgCO_(3)and CaCO_(3)precipitates with near spherical morphologies,whereas homogenized AZ91 comprised mainly unstable Mg(OH)_(2)film featured by irregular plate-like morphologies. | Nagaraj M.Chelliah Pambannan Padaikathan Ram Kumar | 2019 | Journal of Magnesium and Alloys2019，7，1： | 5 |
| 6 | Z-Box Binding Transcription Factors (ZBFs): A Ne~ Class of Transcription Factors in Arabidopsis Seedlinq Development显示文摘 | Sreeramaiah N. Gangappa Anjil Kumar Srivastava Jay R Maurya Hathi Ram Sudip Chattopadhyay | 2013 | Molecular Plant2013，6，6： | 5 |
| 7 | Genome-wide transcriptome analysis reveals molecular pathways involved in leafy head formation of Chinese cabbage(Brassica rapa)显示文摘Chinese cabbage plants go through seedling and rosette stages before forming their leafy head.Chinese cabbage plants resemble pak-choi plants at their seedling stage,but in their rosette stage the leaves of Chinese cabbage differentiate,as they increase in size with shorter petioles.In order to understand the molecular pathways that play a role in leafy head formation,transcript abundance of young emerging leaves was profiled during development of two Chinese cabbage genotypes and a single pak-choi genotype.The two Chinese cabbages differed in many aspects,among others earliness,leaf size and shape,leaf numbers,and leafy head shape.Genome-wide transcriptome analysis clearly separated the seedling stages of all three genotypes together with the later stages from pak-choi,from the later developmental stages of both Chinese cabbages(rosette,folding,and heading).Weighted correlation network analysis and hierarchical clustering using Euclidean distances resulted in gene clusters with transcript abundance patterns distinguishing the two Chinese cabbages from pak-choi.Three clusters included genes with transcript abundance affected by both genotype and developmental stage,whereas two clusters showed only genotype effects.This included a genotype by developmental stage cluster highly enriched with the MapMan category photosynthesis,with high expression during rosette and folding in Chinese cabbages and low expression in the heading inner leaves that are not exposed to light.The other clusters contained many genes in the MapMan categories Cell,showing again differences between pak-choi and both Chinese cabbages.We discuss how this relates to the differences in leaf blade growth between Chinese cabbage and pak-choi,especially at the rosette stage.Overall,comparison of the transcriptome between leaves of two very different Chinese cabbages with pak-choi during plant development allowed the identification of specific gene categories associated with leafy head formation. | XiaoXue Sun Ram Kumar Basnet Zhichun Yan Johan Bucher Chengcheng Cai Jianjun Zhao Guusje Bonnema | 2019 | Horticulture Research2019，6，1： | 4 |
| 8 | 两种草蛉对取食棉花的扶桑绵粉蚧的嗅觉反应(英文)显示文摘捕食性的普通草蛉Chrysoperla sp.(carnea group)和安平草蛉Mallada desjardinsi(Navas)(脉翅目:草蛉科)的寄主-生境定位取决于其觅食行为以及对各阶段释放的植物气味的行为反应。本研究调查了这两种交配的草蛉成虫以及取食棉花的扶桑绵粉蚧Phenacoccus solenopsis的反应,以便了解它们之间的三重营养关系。结果表明:草蛉雄虫和雌虫均能感受到棉花植株释放的绿叶挥发物;植株的各个阶段均可使捕食性昆虫和绵粉蚧定位。在受绵粉蚧为害的棉叶上饱和烃含量高,说明草蛉成虫的反应更为强烈;在植株受为害期和开花期释放捕食性昆虫,可提高田间捕食性昆虫的作用。这些结果提示有效的生物防治取决于捕食性昆虫在植株上的天然定殖能力以及对害虫的吞食能力。 | Sudhida GAUTAM Ashok Kumar SINGH Ram Dass GAUTAM | 2010 | 昆虫学报2010，53，5： | 3 |
| 9 | Discovery and preclinical development of ⅢM-160, a Bergenia ciliatabased anti-inflammatory and anti-arthritic botanical drug candidate显示文摘Objective: Bergenia ciliata(Haw.) Sternb. is used in the Indian traditional system of medicine to treat various ailments including rheumatism and to heal wounds. The objective of the present study was to perform a preclinical characterization of the B. ciliata-based botanical extract IIIM-160.Methods: ⅢM-160 was chemically standardized and analyzed for heavy metal content, aflatoxins,pesticides and microbial load. The in vitro and in vivo efficacies were determined in suitable models of inflammation, arthritis and nociception. An acute oral toxicity study was performed in Swiss albino mice.A suitable oral formulation was developed and characterized.Results: Bergenin was found to be the major component(9.1% w/w) of ⅢM-160. The botanical lead displayed inhibition of lipopolysaccharide-induced production of proinflammatory cytokines in THP-1 cells, with selectivity toward interleukin-6(IL-6) and had an excellent safety-window. It showed anti-inflammatory, anti-arthritic and antinociceptive activity in animal models and was not toxic at oral doses up to 2 g/kg in Swiss-albino mice. The gastroretentive, sustained-release capsule formulation showed sustained-release of the bergenin over the period of 24 h, resulting in improved plasma-exposure of bergenin in Sprague–Dawley rats.Conclusion: The dual-activity of IL-6 inhibition and antinociception marks the suitability of ⅢM-160 for treating rheumatoid arthritis. This study will serve as the benchmark for further research on this botanical formulation. | Sandip B.Bharate Vikas Kumar Sonali S.Bharate Bikarma Singh Gurdarshan Singh Amarinder Singh Mehak Gupta Deepika Singh Ajay Kumar Surjeet Singh Ram A.Vishwakarma | 2019 | Journal of Integrative Medicine2019，17，3： | 3 |
| 10 | Magnetic separation studies for a low grade siliceous iron ore sample显示文摘Investigations were carried out, on a low grade siliceous iron ore sample by magnetic separation, to establish its amenability for physical beneficiation. Mineralogical studies revealed that the sample consists of magnetite, hematite and goethite as major opaque oxide minerals where as silicates as well as carbonates form the gangue minerals in the sample. Processes involving combination of classification, dry magnetic separation and wet magnetic separation were carried out to upgrade the low grade siliceous iron ore sample to make it suitable as a marketable product. The sample was first ground and each closed size sieve fractions were subjected to dry magnetic separation and it was observed that limited upgradation is possible. The ground sample was subjected to different finer sizes and separated by wet low intensity magnetic separator. It was possible to obtain a magnetic concentrate of 67% Fe by recovering 90% of iron values at below 200 lm size. | Dwari Ranjan Kumar Rao Danda Srinivas Reddy Palli Sita Ram | 2013 | International Journal of Mining Science and Technology2013，23，1： | 3 |
| 11 | Surface functionalization of BiFeO3: A pathway for the enhancement of dielectric and electrical properties of poly(methyl methacrylate)-BiFe03 composite films显示文摘一部新奇二阶段的合成电影被作为陶器的 filler 作为聚合物矩阵和铋铁酸盐(BFO ) 扔 poly 采用的方法(甲基 methacrylate )(PMMA ) 的溶剂准备。BFO 的表面是由合适的 hydroxylating 代理人的 functionalized 激活他们的化学性质。合成电影的结构的分析证实由 functionalized BFO 组成的 composites (BFO -- 哦) 有弄歪的菱形的结构。词法分析显示出那 BFO -- 哦粒子同等地在聚合物矩阵上被散布。BFO 的 -OH 功能 -- 哦被 FTIR 证实。在到 1 MHz 的从 100 Hz 的一个频率范围的绝缘、电的研究揭示那 PMMA-(BFO -- 哦) composites 提高了绝缘的经常以及电的传导性,比未修改的 composites 的高得多。根据铁电体测量结果, hydroxylated 合成电影比未修改的的显示出优异铁电体行为,与残余的极化(2P 2.764 C/cm 2 的 r ) 。 | Mukesh Kumar MISHRA Srikanta MOHARANA Banarji BEHERA Ram Naresh MAHALING | 2017 | Frontiers of Materials Science2017，11，1： | 2 |
| 12 | Characterization of dolochar wastes generated by the sponge iron industry显示文摘Solid wastes generated by the metallurgical industry contribute significantly towards the enhancement of environmental pollution. The handling, utilization, and safe disposal of these solid wastes are major concerns for the world. Dolochar is such a solid waste generated by the sponge iron industry. Investigations were carried out on the physical, mineralogical, and chemical characteristics for the efficient utilization of dolochar. The detailed studies on physico-chemical properties and petrography were carried out by optical microscopy, X-ray diffraction (XRD), and scanning electron microscopy (SEM). Characterization studies revealed that the dolochar consists of quartz (free as well as locked), free lime, Fe particles, and Ca or Mg and/or Ca+Mg+Fe oxide phases. The washability data of-300 μm dolochar samples indicated that clean coal with 41wt% ash at 18% yield can be produced from dolochar with 78wt% ash. The studies further suggested that the liberation of the dolochar is hard to achieve for clear separation. The dolochar is observed to have high ash fusion temperature and the unburned carbon can be best utilized for power generation. | Ranjan Kumar Dwari Danda Srinivas Rao Akhila Kumar Swar Palli Sita Ram Reddy Barada Kanta Mishra | 2012 | International Journal of Minerals,Metallurgy and Materials2012，19，11： | 2 |
| 13 | Ethanol steam reforming study over ZSM-5 supported cobalt versus nickel catalyst for renewable hydrogen generation显示文摘The renewable hydrogen generation through ethanol steam reforming is one of the anticipated areas for sustainable hydrogen generation. To elucidate the role of Ni and Co with ZSM-5 support, catalysts were prepared by wet impregnation method and ethanol steam reforming(ESR) was performed. The catalysts were characterized by HR-XRD, ATR–FTIR, HR-SEM, TEM with SAED, EDAX, surface area analyzer and TPR. It had shown complete ethanol conversion at 773 K, but the selectivity in hydrogen generation was found higher for 10% Ni/ZSM-5 catalyst as compared to 10% Co/ZSM-5. The 10% Ni/ZSM-5 catalyst has about 72% hydrogen selectivity at temperature 873 K. It indicates that Ni is a more sustainable catalyst as compared to Co with ZSM-5 support for ESR. The C_2H_4 was found major undesirable products up to 823 K temperature. Nevertheless, the 10% Ni/ZSM-5 catalyst had shown its stability for high temperature(873 K) ESR performance. | Ashutosh Kumar Ram Prasad Yogesh Chandra Sharma | 2019 | Chinese Journal of Chemical Engineering2019，27，3： | 2 |
| 14 | Painlev Analysis,Lie Symmetries and Exact Solutions for Variable Coefficients Benjamin-Bona-Mahony-Burger (BBMB) Equation显示文摘In this paper,a variable-coefficient Benjamin-Bona-Mahony-Burger (BBMB) equation arising as a mathematical model of propagation of small-amplitude long waves in nonlinear dispersive media is investigated.The integrability of such an equation is studied with Painlev analysis.The Lie symmetry method is performed for the BBMB equation and then similarity reductions and exact solutions are obtained based on the optimal system method.Furthermore different types of solitary,periodic and kink waves can be seen with the change of variable coefficients. | Vikas Kumar R.K.Gupta Ram Jiwari | 2013 | Communications in Theoretical Physics2013，60，8： | 2 |
| 15 | 针对稳定和不稳定二阶时滞过程的IMC-PID控制器的性能改进设计(英文)显示文摘针对不稳定二阶时滞系统,提出了一种具有逆响应(RHP零)特性的IMC-PID控制器。通过Ms和λ图计算合适的调优参数λ,使性能和鲁棒性之间达到平衡。从文献中选取了六种不同形式的过程模型,说明了该方法的适用性。通过ITAE和总变差TV计算控制器的性能,并与最近发布的调优规则进行比较。通过使用设置点加权参数来消除不必要的超调。通过对各模型参数进行摄动,验证了控制器的鲁棒性。闭环控制结果表明,所设计的控制器在模型不确定性条件下具有较强的鲁棒性。与其他最近报道的方法相比,该方法具有更好的闭环响应。 | Munna KUMAR Durga PRASAD Ram Sharan SINGH | 2020 | Journal of Central South University2020，27，1： | 2 |
| 16 | Microstructural evolution of die-cast and homogenized AZ91 Mg-alloys during dry sliding condition显示文摘Received 16 July 2016;revised 24 January 2017;accepted 7 February 2017 Available online 22 February 2017 Abstract Microstructural evolution of die-cast and homogenized AZ91 Mg-alloys was investigated during dry sliding wear condition.Tribological tests were performed using a pin-on-disc(EN8 steel)configuration with a normal load of 50 N at a constant sliding speed of 2.5 ms^(−1) under ambient environment.Delamination was recognized as a predominant wear mechanism in both of these materials.The die-cast AZ91 Mg-alloy exhibits lower coefficient of friction and higher wear rate.This can be ascribed to increase in the intensity of load bearing capacity of hardβ-Mg_(17)Al_(12) phase,and crack formation/de-cohesion at the interface between primaryα-Mg and discontinuousβ-Mg_(17)Al_(12) phases.On the contrary,the homogenized AZ91 Mg-alloy experiences higher coefficient of friction and lower wear rate.The friction-induced microstructural evolution(supersaturatedα-Mg to eutectic(α+β-Mg_(17)Al_(12)))tending to minimize the wear rate by providing barrier to material removal in the near surface region of homogenized AZ91 Mg-alloy.Therefore,experimental observation revealed that an inverse relationship exists between wear rate and coefficient of friction for the investigated materials.The analysis of worn surfaces and subsurfaces by electron microscopy provided evidence to delamination wear and microstructural evolution. | Nagaraj M.Chelliah Ram Kumar Harpreet Singh M.K.Surappa | 2017 | Journal of Magnesium and Alloys2017，5，1： | 2 |
| 17 | Electron Paramagnetic Resonance and Optical Absorption of VO2+Doped Ammonium Selenate Single Crystals显示文摘An electron paramagnetic resonance study of vanadyl ions doped in ammonium selenate single crystals is carried out at room temperature.It is found that the VO^(2+)ion takes up an interstitial site.The spin Hamiltonian parameters obtained from the crystal rotations are g‖=1.9576±0.0002,g⊥=1.9889±0.0002,A‖=203±2 G,A⊥=78±2 G.An optical absorption study is also carried out to evaluate various bonding parameters.On the basis of these parameters the nature of bonding in the complex is discussed. | Ram Kripal Ashutosh Kumar Shukla | 2011 | Chinese Physics Letters2011，28，3： | 2 |
| 18 | Antiproliferative role of Indig ofera aspalathoides on 20 methylcholanthrene induced fibrosarcoma in rats显示文摘Objective:To find out the anticancer effect of indigofera aspalathoides(L.aspalathoides)on20-methylcholanthrene induced fibrosarcoma in rats.Methods:Fibrosarcoma was induced in Wistar strain male albino rats by 2O-methylcholanthrene.Intraperitoneous(i.p.)administration of250 mg/kg body weight/day of aqueous extract of I.aspalathoides for 30 d effectively suppressed chemically induced tumors.Parameters such as body weight,liver and kidney weight,tumor weight,mean survival time,behavioral changes,blood glucose,blood glycogen and marker enzymes such as alanine aminotransferase(ALT),aspartate aminotransferase(AST),alkaline phosphatase(ALP),acid phosphatase(ACP)and 5'-nucleiotidase(5'-NT)in serum,liver and kidney and lipid profiles such as total cholesterel,phospholipids,free fatty acids in liver and kidney of control and experimental animals were studied.Results:Fibrosarcoma bearing animals were ferocious and anxious.The mean survival time was found to increase after the treatment.The body weights were significantly decreased(P<0.001)in groupⅡfibrosarcoma animals which steadily increased after the treatment with I.aspalathoides.The liver and kidney weights were significantly increased whereas the tumor weights decreased as compared to the weights in untreated fibrosarcoma bearing rats.The blood glucose and the liver and kidney glycogen levels were found to decrease significantly(P<0.001)in groupⅡanimals.Elevated activities of marker enzymes were observed in serum,liver and kidney of fibrosarcoma bearing GroupⅡanimals which were normalize after I.aspalathoides treatment.In the liver and kidney of GroupⅡanimals the total cholesterol increased whereas the pbospbolipids and free fatty acid levels decreased(P<0.001)which were normalized after treatment.Conclusions:The treatment by I.aspalathoides on fihrosarcoma bearing rats has improved the levels of various parameters indicating its antiproliferative and anticancer activity. | Sivagnanam Selva Kumar Mudiganti Ram Krishna Rao Maruthaiveeran Periyasamy Balasubramanian | 2012 | Asian Pacific Journal of Tropical Biomedicine2012，2，12： | 2 |
| 19 | Rapid screening and distribution of bioactive compounds in different parts of Berberis petiolaris using direct analysis in real time mass spectrometry显示文摘Berberis petiolaris Wall,ex G.Don,an unexplored medicinal plant belonging to the family Berberidaceae,is a large deciduous shrub found in Western Himalaya between 1800-3000 m.Chemical profiling of fruit,leaf,root and stem was done by direct analysis in real time mass spectrometry followed by multivariate analysis for discrimination among the plant parts.The bioactive compounds,including magnoflorine,berberine,jatrorrhizine,thalifendine/berberrubine,demethyleneberberine,reticuline,8-oxoberberine,N-methyltetrahydroberberine,tetrahydropalmatine,tetrahydroberberine and palmatine,were identified by their exact mass measurement and the corresponding molecular formula of each compound.A comparative study of distribution pattern for all these bioactive alkaloids showed qualitative and quantitative variations in different parts of B.petiolaris.Principal component analysis clearly discriminated each part of B.petiolaris plant. | Awantika Singh Vikas Bajpai Mukesh Srivastava Kamal Ram Arya Brijesh Kumar | 2015 | Journal of Pharmaceutical Analysis2015，5，5： | 2 |
| 20 | Planetary-Scale Wave Structures of the Earth's Atmosphere Revealed from the COSMIC Observations显示文摘GPS radio occultation(GPS RO) method,an active satellite-to-satellite remote sensing technique,is capable of producing accurate,all-weather,round the clock,global refractive index,density,pressure,and temperature profiles of the troposphere and stratosphere.This study presents planetary-scale equatorially trapped Kelvin waves in temperature profiles retrieved using COSMIC(Constellation Observing System for Meteorology,Ionosphere,and Climate) satellites during 2006-2009 and their interactions with background atmospheric conditions.It is found that the Kelvin waves are not only associated with wave periods of higher than 10 days(slow Kelvin waves) with higher zonal wave numbers(either 1 or 2),but also possessing downward phase progression,giving evidence that the source regions of them are located at lower altitudes.A thorough verification of outgoing longwave radiation(OLR) reveals that deep convection activity has developed regularly over the Indonesian region,suggesting that the Kelvin waves are driven by the convective activity.The derived Kelvin waves show enhanced(diminished) tendencies during westward(eastward) phase of the quasi-biennial oscillation(QBO) in zonal winds,implying a mutual relation between both of them.The El Nino and Southern Oscillation(ENSO) below 18 km and the QBO features between 18 and 27km in temperature profiles are observed during May 2006-May 2010 with the help of an adaptive data analysis technique known as Hilbert Huang Transform(HHT).Further,temperature anomalies computed using COSMIC retrieved temperatures are critically evaluated during different phases of ENSO,which has revealed interesting results and are discussed in light of available literature. | S.K.A.V.Prasad Rao ANISETTY P.S.BRAHMANANDAM G.UMA A.Narendra BABU 黄清勇 G.Anil KUMAR S.Tulasi RAM 王筱岚 朱延祥 | 2014 | Journal of Meteorological Research2014，28，2： | 2 |
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