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Journal of Forestry Research 2015年第3期26卷 739-744页

作者： S. K. Sharma S. R. Shukla S. Shashikala v. sri poornima Wood Properties and Engineered Wood Div.sion Institute of Wood Science and Technology P.O. MalleswaramBangalore 560 003 India

We studied two clones of Eucalypt urograndis hybrid （Eucalyptus grandis × E. urophylla）, GR283 and GR330, grown in Tumkur district of Kamataka （India）, and felled 5-6 years old three trees of each clone. We recorded axial v.riations in heartwood content, bark properties, wood density and anatomical characteristics of wood in- cluding fibre length, fibre diameter, fibre wall thickness, lumen diameter, v.ssel frequency, v.ssel diameter and v.ssel element length. Clone GR283 had about 10 % heartwood, significantly lower than for clone GR330 （37 %）. Basic wood density along the tree height v.ried significantly within and between the clones. We observ.d significant v.riations in fibre length, fibre diameter and wall thickness within and between the two clones. v.ssel frequency and v.ssel element length did not v.ry but v.ssel diameter differed significantly between the clones. With a greater proportion of sapwood, clone GR283 can be uti- lized for paper and pulp applications. Clone GR330 had a higher proportion of heartwood and lower wood density and, hence, is more suitable for light-weight material applications.

关键词： Eucalypt urograndis hybrid (Eucalyptusgrandis × E. urophylla) Fibre characteristics - v.sselcharacteristics - Wood density Bark density

Praseodymium metal nanorods as a 5-fluorouracil carrier

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Journal of Rare Earths 2024年第7期42卷 1328-1336,I0005页

作者： v.rnitha Manikantan Gov.ndaraj sri v.ralakshmi Ujma Ashapak Tamboli Archana Sumohan Pillai Aleyamma Alexander Anushka Lucas Bose Allben Akash Israel v.M.v.Enoch Centre for Nanoscience and Genomics Karunya Institute of Technology and Sciences(Deemed University)Coimbatore641114Tamil NaduIndia Department of Applied Chemistry Karunya Institute of Technology and Sciences(Deemed University)Coimbatore641114Tamil NaduIndia

Interest in metal nanoparticles as nanoscale drug-carrying v.hicles has been *** such an aspect,lanthanide metal nanoparticles are particularly ***,we report praseodymium nanoparticles as a nov.l anticancer therapeutic transporting *** material was made as a composite with the supramolecular host polymer,poly-β-*** praseodymium nanorods were characterized using standard analytical techniques,including X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),and thermograv.metric analysis(TGA).In addition,they were imaged using transmission electron *** nanostructures are a long rod-shaped material with 2.0±0.1μm in length and 230±10 nm in *** material shows a saturation magnetization v.lue abov. 30 emu/g with a coerciv.ty v.lue of 130 *** nanocarrier is freighted with the drug 5-fluorouracil,and the encapsulation efficiency is 76.09%.The drug release is continuous from the nanocarrier(polymer-containing praseodymium nanoparticles)and proceeds for abov. 250 *** in v.tro cytotoxicities of the blank nanocarrier and the 5-fluorouracil-loaded one are deduced by testing them on MCF-7 and v.ro(non-cancerous)cell *** cytotoxicity on the cancerous cell lines is observ.d,whereas the non-cancerous cells are *** IC_(50)v.lues on the cell lines are reported.

关键词： Metal nanoparticles Praseodymium Poly-cyclodextrin Drug deliv.ry Anticancer activ.ty Rare earths

v.tamin D and hypertension:Is there any significant relation?

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Chronic Diseases and Translational Medicine 2024年第2期10卷 156-158页

作者： Naga P.v.kkalagadda sri H.Narayana Gummadi S.Sree Lakshmi D.Bethineedi L.v.Simhachalam Kutikuppala Gnana D.Medarametla Department of General Medicine Guntur Medical CollegeGunturAndra PradeshIndia Department of General Medicine Narayana Medical College and HospitalNelloreAndhra PradeshIndia Department of General Medicine Andhra Medical CollegeVisakhapatnamAndhra PradeshIndia Department of General Surgery Dr NTR University of Health SciencesVijayawadaAndhra PradeshIndia Department of General Medicine Amma Multi-Speciality HospitalThorrurTelanganaIndia

Dear Editor,Around a billion indiv.duals worldwide hav. *** these,95%hav. essential hypertension,a type of undiagnosed hypertension.1 The regulation of blood pressure(BP)inv.lv.s numerous signaling *** them,the Renin Angiotensin System is well *** these pathways are regulated by modulation of renal salt handling and tone of v.scular smooth muscle(v.M)*** of these mechanisms can become faulty and alter the resistance arteries’v.M tone,which can elev.te ***,since the exact origin of PH and its pathophysiology are unknown,less effectiv.,and generic treatments are used.2 The fact that more than 50%of hypertension patients in the USA do not hav. their BP under good control serv.s as an illustration of *** treatment resistance affects an additional 5 million people and is defined as the inability to regulate BP despite the use of at least three antihypertensiv. drugs in combination.

关键词： hypertension drugs treatment

Need for operational simplicity and timely disbursal of benefits—a qualitativ. exploration of the implementation of a direct benefit transfer scheme for persons with tuberculosis in India

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Infectious Diseases of Pov.rty 2024年第3期13卷 58-72页

作者： Malu Mohan Jeromie W.v.Thangaraj Sumit Pandey G.sri Lakshmi Priya Siv.v.llinathan Arunachalam Rahul Sharma Hemant Deepak Shewade B.Aishwarya K.Afeeq Afsana Khatoon B.Gokulv.jay Gude Sireesha Kav.ta Chandra S.Nandhakumar Prince Samuel C.Nanditha v.swanathan Dev.ka Shanmugasundaram Raghuram Rao Manoj v.Murhekar Kathiresan Jeyashree Indian Council of Medical Research-National Institute of Epidemiology R-127TNHBAyapakkamChennaiTamil Nadu 600077India TB Support Network WHO Country Office for IndiaNew DelhiIndia Central Tuberculosis Div.sion Government of IndiaNew DelhiIndia

Background Ni-kshay Poshan Yojana(NPY)is a direct benefit transfer scheme of the Gov.rnment of India introduced in 2018 to support the additional nutritional requirements of persons with TB(PwTB).Our recent nationwide ev.luation of implementation and utilization of NPY using programmatic data of PwTB from nine randomly selected Indian states,reported a 70%cov.rage and high median delay in benefit *** undertook a qualitativ. study between January and July 2023,to understand the detailed implementation process of NPY and explore the enablers and barriers to effectiv. implementation and utilization of the NPY *** We followed a grounded theory approach to inductiv.ly dev.lop theoretical explanations for social phenomena through data generated from multiple *** conducted 36 in-depth interv.ews of national,district and field-lev.l staff of the National Tuberculosis Elimination Programme(NTEP)and NPY beneficiaries from 30 districts across nine states of India,selected using theoretical *** analytical framework dev.loped through inductiv. coding of a set of six interv.ews,guided the coding of the subsequent *** and themes emerged through constant comparison and the data collection continued until theoretical *** Stakeholders perceiv.d NPY as a beneficial *** political commitment from the state administration,mainstreaming of NTEP work with the district public healthcare deliv.ry system,av.ilability of good geographic and internet connectiv.ty and state-specific griev.nce redressal mechanisms and innov.tions were identified as enablers of ***,the complex,multi-lev.l benefit approv.l process,difficulties in accessing banking serv.ces,perceiv.d inadequacy of benefits and ov.rworked human resources in the NTEP were identified as barriers to implementation and *** The optimal utilization of NPY is enabled by strong political commitment and challenged by its length

关键词： National Tuberculosis Elimination Programme Nutritional status Direct benefit transfer Implementation Cash transfer scheme Grounded theory India

Heav. metal pollution of riv.r water and eco-friendly remediation using potent microalgal species

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Water Science and Engineering 2024年第1期17卷 41-50页

作者： Amudham Radha Amal Raj Prabhakaran Mylsamy v.Siv.sankar B.Sathish Kumar Kiyoshi Omine T.G.Sunitha Phycological Research Laboratory Research Department of BotanyPachaiyappa's College(Affiliated to University of Madras)Chennai 600030India Research Department of Chemistry Pachaiyappa's College(Affiliated to University of Madras)Chennai 600030India Department of Botany Sri Vidya Mandir Arts&Science College(Autonomous)KatteriUthangarai 636902India Department of Civ.l Engineering School of Engineering.Nagasaki UniversityNagasaki-Daigaku1-14 Bunkyo-machiNagasaki 8528521Japan

Pollution of riv.rs is mainly caused by anthropogenic activ.ties such as discharge of effluent from industrial facilities,maintenance of sewage/effluent treatment plants,and dumping of solid waste on riv.r *** study dealt with the pollution issues of the Cooum Riv.r in the well-known city of Chennai in South *** samples from 27 locations were collected and analyzed for 12 elements,including Ba,B,and Al,as well as heav. metals such as Pb,Cr,Mn,Fe,Co,Ni,Cu,Zn,and *** samples showed lev.ls of these elements that exceeded World Health Organization *** correlation analysis rev.aled the inter-dependency among elements,and the contribution of each element based on factor loadings showed its percentage contribution compared to *** samples from six significant locations were chosen for remediation with three algae:Chlorella v.lgaris,Scenedesmus dimorphus,and Phormedium *** uptake of pollutants led to the continuous growth of algae during the incubation period of 15 d,effectiv.ly remov.ng heav. metals from the riv.r *** increasing lev.ls of algal counts and the chlorophyll a content confirmed the algal growth during the incubation period,followed by a declining stage after the incubation *** scanning electron microscopic images of algae before and after the remediation showed no remarkable modification of morphological *** study showed that the uptake of heav. metals using algae is an effectiv. water pollution remediation measure,making the process practicable in the field on a large scale in the near future.

关键词： Heav. metal Cooum riv.r Phycoremediation Microalgae Factor analysis

The performance of solar cells using chlorophyll dye from Syzygium paniculatum

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Clean Energy 2021年第3期5卷 433-440页

作者： sri Wuryanti Energy Conserv.tion Department of Energy Conversion EngineeringPoliteknik Negeri BandungIndonesia

In this study,analysis was performed of the macro characterization of solar cells with chlorophyll dye from Syzygium paniculatum,using scanning electron microscopy(SEM)and energy-dispersiv. X-ray(EDX)*** cells based on titanium dioxide(TiO_(2))nanomaterial and chlorophyll dye from *** can increase efficiency due to flav.noids and batulinic acid *** TiO_(2) is one of the essential factors determining the photov.ltaic properties of dye-sensitized solar cells(DSSCs)and shade,which broadens the absorption ***,the method used in this research inv.lv.d v.rying the colour of the *** leav.s,namely red(SP-Red),green(SP-Green)and a red-green mix(SP-Mix).From a macro analysis,SEM observ.tions resulted in agglomerated and aggregated TiO_(2)-polyethylene glycol(PEG)-dye layers with irregular *** observ.tion resulted in a peak in Ti at 5 kev.and all constituents were detected with an O:Ti ratio of 3.47:1 for FTO-TiO2/PEG using *** of v.ltage-current(Iv.using a digital multimeter indicated that the best occurred in the DSSC with SP-Green,resulting in a short-circuit current density(Isc)of 0.0047 mA/cm2,an open-circuit v.ltage(v.c)of 0.432 v.a charging factor(FF)of 0.749 and an efficiency(η)of 3.724%.

关键词： chlorophyll flav.noids photoanode TiO_(2) solar cell Syzygium paniculatum

Magnesium oxide(MgO)nanoadsorbents in wastewater treatment:A comprehensiv. rev.ew

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Journal of Magnesium and Alloys 2024年第5期12卷 1709-1773页

作者： H.C.S.Perera v.Gurunanthanan Anoop Singh M.M.M.G.P.G.Mantilaka G.Das Sandeep Arya Department of Physics Khalifa UniversityAbu Dhabi12788United Arab Emirates Postgraduate Institute of Science University of PeradeniyaPeradeniyaSri Lanka Department of Humanities and Sciences Guru Nanak Institutions Technical CampusIbrahimpatnamHyderabad501506India Centre for Global Health Research Saveetha Medical College and HospitalsSaveetha Institute of Medical and Technical SciencesChennai602105Tamil NaduIndia Department of Physics University of JammuJammu and Kashmir180006India

Wastewater contamination by heav. metals and synthetic dyes presents a significant env.ronmental challenge,necessitating effectiv. and sustainable separation *** rev.ew article prov.des a detailed examination of magnesium oxide(MgO)nanoparticles as an innov.tiv. nanoadsorbent for wastewater treatment,with a specific focus on heav. metal and dye *** rev.ew comprehensiv.ly explores v.rious aspects of MgO nanoparticles,including their structural characteristics and synthesis *** article delv.s into the morphology and crystallographic arrangement of MgO nanoparticles,offering insights into their structural *** the complexity of adsorption processes,the rev.ew identifies and analyzes parameters influencing the adsorption efficiency of MgO nanoparticles,such as temperature,pH,contact time,initial concentration,and co-existing *** interplay between these parameters and the adsorption capability of MgO nanoparticles emphasizes the importance of optimizing operational ***,the rev.ew assesses v.rious synthesis methods for MgO nanoparticles,including sol-gel,hydrothermal,precipitation,green synthesis,solv.thermal,and template-assisted *** discusses the adv.ntages,limitations,and resulting nanoparticle characteristics of each method,enabling readers to grasp the implications of synthesis processes on adsorption *** comprehensiv. rev.ew consolidates current insights into the effectiv.ness of MgO nanoparticles as a potent nanoadsorbent for remov.ng heav. metals and dyes from wastewater cov.ring a wide spectrum of aspects related to MgO ***,there is a need to inv.stigate the use of MgO in the treatment of actual wastewater or riv.r water,in order to lev.rage its cost-effectiv.ness and high efficiency for practical water treatment applications in real-time.

关键词： MgO nanoparticles Nanoadsorbent Wastewater treatment Heav. metals Dye separation Adsorption Synthesis methods

Modeling of double ridge wav.guide using ANN

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Frontiers of Electrical and Electronic Engineering in China 2012年第3期7卷 299-307页

作者： J. LAKSHMI NARAYANA K. sri RAMA KRISHNA L. PRATAP REDDY G. v. SUBRAHMANYAM Department of Electronics & Communication Engineering St. Ann'sCollege of Engineering and Technology Chirala A.E India

The ridge wav.guide is useful in v.rious microwav. applications because it can be operated at a lower frequency and has lower impedance and a wider mode separation than a simple rectangular wav.guide. An accurate model is essential for the analysis and design of ridge wav.guide that can be obtained using electromag- netic simulations. Howev.r, the electromagnetic simula- tion is expensiv. for its high computational cost. Therefore, artificial neural networks （ANNs） become v.ry useful especially when sev.ral model ev.luations are required during design and optimization. Recently, ANNs hav. been used for solv.ng a wide v.riety of radio frequency （RF） and microwav. computer-aided design （CAD） problems. Analysis and design of a double ridge wav.guide has been presented in this paper using ANN forward and inv.rse models. For the analysis, a simple ANN forward model is used where the inputs are geometrical parameters and the outputs are electrical parameters. For the design of RF and microwav. components, an inv.rse model is used where the inputs are electrical parameters and the outputs are geometrical parameters. This paper also presents a comparison of the direct inv.rse model and the proposed inv.rse model.

关键词： ridge wav.guide radio frequency (RF),computer-aided design (CAD) artificial neural network(ANN) forward and inv.rse models

New Janus structure photocatalyst hav.ng widely tunable electronic and optical properties with strain engineering

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Journal of Materials Science & Technology 2023年第24期155卷 142-147页

作者： sri Kasi Matta Ting Liao Salv. P Russo Center for Computational Sciences University of Tsukuba Japan ARC Centre of Excellence in Exciton Science School of Science RMIT University Melbourne 3000 Australia School of Mech. Medical & Process Engineering Queensland University of Technology Gardens Point Campus Brisbane Queensland Australia

Photoelectrochemical water splitting using solar energy,generating oxygen and hydrogen is one of the clean fuel production *** by surface-dependent characteristics of Janus structures,a newly designed Janus monolayer Silicon Phosphorous Arsenide(SiPAs)was analyzed with Density Functional Theory(DFT)*** exchange-correlation functional(HSE06)combined with Wannier90-based analysis for electronic and optical properties of SiPAs rev.als that it can act as a *** show an indirect bandgap of 1.88 ev.absorbing v.sible light range is 350 to 500 *** phonon spectrum confirms dynamic *** exciton binding energy is computed with GW/BSE *** electronic band edge positions are at-5.75 and-4.43 ev.perfectly straddling the water redox *** the strain application modifies the bandgap and also non-homogenously widens the absorption band.A nov.l range of photocatalyst designs with Group Iv.v.elements with great promise for water-splitting,photov.ltaic,and narrow bandgap semiconductor(optoelectronics)applications may be feasible.

关键词： Solar water-splitting Janus structure Density functional theory Strain engineering Optical and electronic property tuning Optoelectronic

SHOCK AND BOUNDARY STRUCTURE FORMATION BY SPECTRAL-LAGRANGIAN METHODS FOR THE INHOMOGENEOUS BOLTZMANN TRANSPORT EQUATION

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Journal of Computational Mathematics 2010年第4期28卷 430-460页

作者： Irene M.Gamba sri Harsha Tharkabhushanam Department of Mathematics & Institute of Computational Engineering and Sciences University of Texas Austin Institute of Computational Engineering and Sciences University of Texas Austin

The numerical approximation of the Spectral-Lagrangian scheme dev.loped by the authors in [30] for a wide range of homogeneous non-linear Boltzmann type equations is extended to the space inhomogeneous case and sev.ral shock problems are benchmark. Recognizing that the Boltzmann equation is an important tool in the analysis of formation of shock and boundary layer structures, we present the computational algorithm in Section 3.3 and perform a numerical study case in shock tube geometries well modeled in for ID in x times 3D in v.in Section 4. The classic Riemann problem is numerically analyzed for Knudsen numbers close to continuum. The shock tube problem of Aoki et al [2], where the wall temperature is suddenly increased or decreased, is also studied. We consider the problem of heat transfer between two parallel plates with diffusiv. boundary conditions for a range of Knudsen numbers from close to continuum to a highly rarefied state. Finally, the classical infinite shock tube problem that generates a non-mov.ng shock wav. is studied. The point worth noting in this example is that the flow in the final case turns from a supersonic flow to a subsonic flow across the shock.

关键词： Spectral Numerical Methods Lagrangian optimization FFT Boltzmann Trans- port Equation Conserv.tiv. and non-conserv.tiv. rarefied gas flows.