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New Agri-Silvo-Pastoral Model Utilizing Terrace RiserEnhancing Crop and Livestock Production Developed inNepal

Journal of Agricultural Science and Technology(A) 2019年第6期9卷 371-389页

作者： Barakoti Tanka Prasad sah raj kumar Agricultural Research Station Nepal Agricultural Research CouncilDhankuta 56800PakhribasNepal

Twelve fodder species with maize (Zea mays) and millet (Eleusine coracana) were evaluated under agri-silvo-pastoral system along the Terrace risers (T-risers) of cropping land in the Agricultural Research Station Pakhribas, Nepal. Major aim of innovative agroforestry experiment designed and tested first time in Nepal was to utilize one-third land in risers of cropping terraces due to limited lands of smallholders to produce green fodders needed for livestock. Trees were planted at 1.5 m on the terrace edges and ground fodders at 30-50 cm on the risers. Trees were not allowed to grow tall to avoid shade effect on crops grown in terraces. They were felled at breast height in second year growing coppices for fodder. The results showed higher survival (76% to 100%), growth (1-3 m high) and yield of improved forages and fodder trees indicating potential for cultivation on T-risers. Dry matter (DM) of tree fodders varied 31%-49%, and ground fodders 19%-32%. DM yields ranged 3.0 t/ha (Stylosanthes guanensis) to 26.5 t/ha (Pennisetum purpureum). Combined effects of fodder species on major hill crops, maize and finger millet growth, yield and other attributes were monitored in the terraces. Most mean data were significant and at par between the treatments. Better combinations of tree and ground fodders for higher grain and stover yields (3.1 t/ha and 3.4 t/ha, respectively) of maize were Grewia optiva/Thysalonaema maxima, Desmodium intortum, Ficus auriculata/Setaria anceps, D. intortum (2.7 t/ha and 3.3 t/ha, respectively). Promising combinations for finger millet growth and yields (2-3 t/ha) were G. optiva/T. maxima, Bauhinia purpurea/S. anceps, F. semicordata/P. cetaceum. Soil analysis result showed positive impact of fodders on the risers where organic matter was highly increased after three years. Farmers and stakeholders also evaluated this technology that has been successful and recommended for similar ecological regions.

关键词： Terrace riser fodder trees forage species maize and millet agri-silvo-pastoral system new model.

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Study of Type-B QPOs Observed in Black Hole X-Ray Binary Swift J1728.9-3613

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Research in Astronomy and Astrophysics 2024年第3期24卷 1-9页

作者： raj kumar Astrophysical Sciences Division Bhabha Atomic Research CentreMumbai 400085India Homi Bhabha National Institute Mumbai 400094India

We report the detection of type-B quasi-periodic oscillation(QPO)of the black hole X-ray binary Swift J1728.9-3613 observed by NICER during the 2019 outburst.A type-B QPO was observed for the first two days and it disappeared as flux increased,but again appeared at∼7.70 Hz when flux was dramatically *** source was found in the soft intermediate state during these *** further studied the energy dependence of the *** found that QPO was observed only for a higher energy range implying that the origin of QPO is possibly due to the corona emitting higher energy photons by the inverse Compton *** variation of spectral parameters can be explained with the disk truncation *** fractional rms was found to be monotonically increased with *** phase lag spectrum followed the“U-shaped”*** rms and phase lag spectrum are modeled and explained with the single-component Comptonization model vkompthdk.

关键词： X-rays binaries-accretion-accretion disks-X-rays individual (Swift J1728.9-3613)

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Effect of cooling media on bead geometry,microstructure,and mechanical properties of wire arc additive manufactured IN718 alloy

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Advances in Manufacturing 2024年第1期12卷 124-149页

作者： Parveen kumar Satish kumar Sharma Ratnesh kumar raj Singh Department of Mechanical Engineering Thapar Institute of Engineering and TechnologyPatialaPunjab147004India

This work aims to present and explore thermal management techniques for the wire arc additive manufacturing(WAAM)of IN718 *** heat can be mitigated via air or water *** this study,the material was deposited under four different heat-input conditions with air or water *** air cooling,the layer is deposited in a normal atmospheric air environment,whereas with water cooling,the material is deposited inside a water tank by varying the water *** validate the air and water cooling thermal management techniques,IN718 single-pass and multilayer linear walls were deposited using the bidirectional gas metal arc welding based WAAM setup under four different heat input *** the deposition of single layers,the temperature profiles were recorded,and the geometric and microstructural features were *** multilayer wall structures,the mechanical properties(hardness,tensile strength,and elongation)were determined and assessed using the corresponding microstructural features explored through scanning electron microscopy(SEM),energy dispersive spectroscopy(EDS),and electron backscatter diffraction(EBSD)*** microstructure observed through SEM analysis in the building direction was found to be nonhomogenous compared with that in the deposition ***,water cooling was found to govern bead characteristics,such as wall width and *** grain size and anisotropy of the mechanical properties also decreased in the water-cooled ***,water cooling is an economical and efficient method to mitigate excessive heat accumulation in WAAM-deposited IN718.

关键词： Air cooling Water cooling IN718 Bead characteristics Microstructure Electron backscatter diffraction(EBSD)

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Dynamics of some new solutions to the coupled DSW equations traveling horizontally on the seabed

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Journal of Ocean Engineering and Science 2024年第2期9卷 154-163页

作者： raj kumar Ravi Shankar Verma Department of Mathematics Faculty of Engineering&TechnologyVeer Bahadur Singh Purvanchal UniversityJaunpur 222003India

The system of(1+1)-coupled Drinfel’d-Sokolov-Wilson equations describes the surface gravity waves travelling horizontally on the *** objective of the present research is to construct a new variety of analytical solutions for the *** invariants are derived with the aid of Killing form by using the optimal algebra classification via Lie symmetry *** invariant solutions involve time,space variables,and arbitrary *** adequate constraints on arbitrary constants,solutions are represented graphically to make them more applicable in designing sea *** behavior of solutions shows asymptotic,bell-shaped,bright and dark soliton,bright soliton,parabolic,bright and kink,kink,and periodic *** constructed results are novel as the reported results[26,28,29,30,33,38,42,49]can be deduced from the results derived in this *** remaining solutions derived in this study,are absolutely different from the earlier *** this study,the physical character of analytical solutions of the system could aid coastal engineers in creating models of beaches and ports.

关键词： Coupled Drinfel’d-Sokolov-Wilson model Invariants Killing form Optimal sub algebra Lie symmetry reductions

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Identification of gene classifier and modules associated with SARS-CoV-2 ARI in nasal swab

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Genes & Diseases 2024年第1期11卷 38-41页

作者： Pandikannan Krishnamoorthy Athira S.raj Himanshu kumar Department of Biological Sciences Laboratory of Immunology and Infectious Disease BiologyIndian Institute of Science Education and Research(llSER)BhopalBhopalMP 462066India Laboratory of Host Defense WPl ImmunologyFrontier ResearchCentreOsakaUniversityOsaka 5650871Japan

During a sudden viral pandemic,where the pathogenesis and nature of the infection are unclear,early and accurate identification of the patients infected with the pandemiccausing pathogen is crucial to prevent excess *** the coronavirus disease 2019(COvID-19)pandemic,early diagnosis of severe acute respiratory syndrome virus-2(SARS-CoV-2)is limited by the incidence of the symptoms that are shared with acute respiratory illnesses(ARl)caused by other pathogens.

关键词： acute diagnosis respiratory

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Gastroesophageal reflux following per-oral endoscopic myotomy:Can we improve outcomes?

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World Journal of Gastroenterology 2024年第22期30卷 2834-2838页

作者： Inian Samarasam raj kumar Joel Anna B Pulimood Department of Surgery Upper Gastrointestinal Surgery UnitChristian Medical College&HospitalVellore 632004TamilnaduIndia Department of Cardiothoracic Surgery Christian Medical College&HospitalVellore 632004TamilnaduIndia Department of Gastrointestinal Sciences Christian Medical College and HospitalVellore 632004Tamil NaduIndia

This editorial is an analysis the review article by Nabi et al recently published in this *** Cardia is a disease whose pathophysiology is still *** is known that there is inflammation of unknown aetiology leading to loss of ganglion cells in the muscularis *** end result is lower oesophageal sphincter spasm,loss of receptive relaxation,decreased oesophageal peristalsis,all leading on to varying degrees of *** treatment of this condition is palliative in nature,performed by myotomy of the lower oesophagus either surgically or *** reflux disease(GERD)has been associated with the myotomy performed,particularly with the Peroral Endoscopic Myotomy(POEM)*** et al have provided an excellent overview of the latest developments in predicting,preventing,evaluating,and managing GERD subsequent to *** on this theme,this review article explores the concept of using histology of the oesophageal muscle layer,to grade the disease and thereby help tailoring the length/type of myotomy performed during the POEM *** the future,will a histology based algorithm available preoperatively,help modify the POEM procedure,thereby decreasing the incidence of GERD associated with POEM?

关键词： Achalasia cardia Peroral endoscopic myotomy Laparoscopic Heller’s myotomy Histopathology Histologic grading

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Foliar spraying of chlorpyrifos induces morphometric changes in Glycine max(L.)and shifts native soil microbiome

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Emerging Contaminants 2024年第3期10卷 86-102页

作者： Aman raj Muneer Ahmad Malla Ashwani kumar Pramod kumar Khare Sheena kumari Metagenomics and Secretomics Research Laboratory Department of BotanyDr.Harisingh Gour University(A Central University)Sagar470003M.P.India Institute for Water and Wastewater Technology Durban University of TechnologyDurban4001South Africa Metagenomics and Secretomics Research Laboratory Department of BotanyUniversity of Allahabad(A Central University)Prayagraj211002U.P.India Department of Botany Ecology laboratoryDr.Harisingh Gour Vishwavidyalaya(A Central University)SagarMadhya Pradesh470003India

Pesticide usage alters plant growth,and development and disturbs native soil *** present study was carried out to evaluate the effect of Chlorpyrifos(CP-20%EC)on the growth and development of soybean(Glycine max),soil fertility,and soil *** conducted a pot experiment to assess the impact of different concentrations of chlorpyrifos;recommended dose(RD)and higher dose rates(2×and 4×RD).Chlorpyrifos application significantly altered the growth parameters in soybean(p<0.05).At higher concentrations(2×and 4×RD)shoot length(17.16±1.04;14.33±1.15,p<0.05),root length(3.40±0.36;2.66±0.28,p<0.050),leaf count(6.33±0.57;2.66±0.57;p<0.05)reduced significantly compared to RD and Control *** at these concentrations(2×and 4×RD),significant reduction in fresh shoot weight(0.86±0.008;0.66±0.002,p<0.05),dry shoot weight(0.14±0.001;0.13±0.003,p<0.05)and root fresh weight(0.13±0.001;0.09±0.003,p<0.05)and root dry weight(0.030±0.0005,0.037±0.003,p<0.05)was observed compared to the RD and control ***,a significant increase in root and shoot morphometric parameters was observed in RD compared to control(p<0.05).All the physio-chemical properties such as pH(8.51±0.82),moisture content(33.73±0.04),and electrical conductivity(3.44±0.03)were higher in CP-treated soils compared to ***,nutrient content such as nitrogen,carbon,and hydrogen were significantly reduced in treated soils compared to *** analysis showed higher concentrations of As,Cd,and Pb in CP-treated soil(8.7 mg/g,0.254 mg/g,and 16.477 mg/g,respectively)compared to untreated soil(8.09 mg/g,0.228 mg/g,and 15.25 mg/g,respectively).We also assessed soil metabolic activity and diversity using Community-level Physiological Profiling(CLPP).CP-treated soil exhibited significantly lesser microbial diversity,with lesser metabolic *** analysis revealed a shift in bacterial community composition,with Pseudomonadota and Bacteroidota dominating CP-treated s

关键词： Chlorpyrifos Glycine max Proline Metabolic activity CLPP Metagenomics Bacterial microbiome

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Heavy metal pollution of river 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.Sivasankar 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 Civil Engineering School of Engineering.Nagasaki UniversityNagasaki-Daigaku1-14 Bunkyo-machiNagasaki 8528521Japan

Pollution of rivers is mainly caused by anthropogenic activities such as discharge of effluent from industrial facilities,maintenance of sewage/effluent treatment plants,and dumping of solid waste on river *** study dealt with the pollution issues of the Cooum River 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 heavy metals such as Pb,Cr,Mn,Fe,Co,Ni,Cu,Zn,and *** samples showed levels of these elements that exceeded World Health Organization *** correlation analysis revealed 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 vulgaris,Scenedesmus dimorphus,and Phormedium *** uptake of pollutants led to the continuous growth of algae during the incubation period of 15 d,effectively removing heavy metals from the river *** increasing levels 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 heavy metals using algae is an effective water pollution remediation measure,making the process practicable in the field on a large scale in the near future.

关键词： Heavy metal Cooum river Phycoremediation Microalgae Factor analysis

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A comprehensive review of rectangular duct solar air heaters featuring artificial roughness

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Clean Energy 2024年第5期8卷 186-217页

作者： Ravi Shankar rajeev kumar Arun kumar Pandey Deep Singh Thakur Department of Mechanical Engineering Rajkiya Engineering College BandaUttar Pradesh 210201India Department of Mechanical Engineering Institute of Engineering&TechnologyLucknowUttar Pradesh 226021India Department of Mechanical Engineering Bundelkhand Institute of Engineering&TechnologyJhansiUttar Pradesh 284128India

Solar air heaters(sahs)are widely used solar thermal systems with applications in diverse ***,its effectiveness is re-strained by low convective heat transfer(HT)coefficients at the absorber plate,leading to inefficient HT,and the elevated temperature of the absorber plate causes significant heat losses,reducing thermal *** study addresses these challenges by introducing ribs or roughness on the absorber plate creating turbulence in the airflow,resulting in significant *** research inves-tigates various rib configurations,the influence of rib parameters,performance methods,and arrangements to evaluate their HT and friction *** these rib configurations,a comparative analysis is done on various factors such as the Nusselt number ratio,thermal enhancement factor,friction factor ratio,and thermal efficiency to optimize distinct roughness parameters and rib ar-rangement *** study also provides valuable recommendations from existing literature,offering insights into the effective design,prospects,and implementation of sah systems.

关键词： solar air heater artificial roughness low heat transfer heating solar energy

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Communications in Theoretical Physics 2014年第1期61卷 121-126页

作者： Mukesh kumar raj kumar Department of Mathematics Motilal Nehru National Institute of Technology Allahabad

In the present work, the new exact solutions of the Boiti-Leon-Pempinelli system have been found. The system has extensive physical background. The exact solutions of the Boiti-Leon-Pempinelli system are investigated using similarity transformation method via Lie group theory. Lie symmetry generators are used for constructing similarity variables for the given system of partial differential equations, which lead to the new system of partial differentiaJ equations with one variable less at each step and eventually to a system of ordinary differential equations （ODEs）. Finally, these ODEs are solved exactly. The exact solutions are obtained under some parametric restrictions. The elastic behavior of the soliton solutions is shown graphically by taking some appropriate choices of the arbitrary functions involved in the solutions.

关键词： Boiti-Leon-Pempinelli system similarity transformation method Lie group theory soliton solutions

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