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Axially Oriented Structured Porous Layers for Heat Transfer Enhancement in a Solar Receiver Tube

Journal of Thermal Science 2021年第5期30卷 1643-1657页

作者： DAS Shefali VERMA neha PATHAK Manabendra BHATTACHARYYA Suvanjan Department of Mechanical Engineering Indian Institute of Technology PatnaPatna801103BiharIndia Department of Mechanical Engineering BITS-PilaniPilani333031RajasthanIndia

The present work reports a numerical investigation of heat transfer and pressure drop characteristics in a solar receiver tube with different shaped porous media for laminar and low Reynolds number turbulent flow *** simulations have been performed with finite volume-based code ANSYS(v-2017)for different shapes of porous layers axially oriented in the *** plain-shaped porous medium fitted up to 50%of the tube shows better performance than other-shaped porous *** have also been performed for axially oriented structured porous media with different *** oriented structured porous medium develops a lateral flow disturbance enhancing the intermixing of the liquid and porous medium at their *** porous medium with a 3-crest configuration shows the best heat transfer performance among all the shapes of porous *** offers a maximum of 148%heat transfer enhancement compared to a half-filled plain porous layer,whereas it reports a maximum of 564%enhancement compared to the flow without a porous *** lateral flow tendency or the swirling effect helps better heat transfer performance in the axially oriented structured porous *** evaluation criterion(PEC)in all types of porous media is more in the transitional flow regime than in the laminar and turbulent flow *** the same operating conditions,the maximum value of the PEC in the present work is 120%higher than the maximum value of PEC for other-shaped porous media reported in the *** for Nusselt number have been developed for both laminar and turbulent flow regimes for three crests shaped porous medium.

关键词： porous medium structured porous layer heat transfer enhancement pressure drop performance evaluation criterion

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Variation tolerant and stability simulation of low power SRAM cell analysis using FGMOS

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International Journal of Modeling, Simulation, and Scientific Computing 2021年第4期12卷 184-200页

作者： neha Sharma Rajeevan Chandel Electronics and Communication Engineering National Institute of Technology Hamirpur Hamirpur Himachal PradeshIndia

With technology scaling,stability,power dissipation,and device variability,the impact of process,voltage and temperature(PVT)variations has become dominant for static random access memory(SRAM)analysis for productivity and *** this paper,ten-transistors(10T)and low power eight-transistors SRAM cells are redesigned using floating-gate MOS transistors(FGMOS).Power centric parameters *** power,write power,hold power and delay are the performance analysis ***,the stochastic parameter variation to study the variability tolerance of the redesigned cell,PVT variations and Monte Carlo simulations have been carried out for 10T FGMOS SRAM *** has been illustrated with the conventional butterfly method giving read static noise margin(RSNM)and write static noise margin(WSNM)metrics for read stability and write ability,respectively.A comparative analysis with standard six-transistor SRAM cell is carried *** simulative analysis has been carried out for 32 nm technology *** redesigned FGMOS SRAM cells provide improved ***,these are robust and reliability efficient with comparable stability.

关键词： Floating gate MOSFETs Monte Carlo analysis process corner analysis SRAM read stability write ability

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Automatic relationship extraction from agricultural text for ontology construction

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Information Processing in Agriculture 2018年第1期5卷 60-73页

作者： neha Kaushik Niladri Chatterjee Indian Institute of Technology Delhi Hauz KhasNew Delhi 110016India

In the present era of Big Data the demand for developing efficient information processing techniques for different applications is expanding *** such possible application is automatic creation of *** an ontology is often found to be helpful for answering queries for the underlying *** present work proposes a scheme for designing an ontology for agriculture *** proposed scheme works in two *** the first step it uses domain-dependent regular expressions and natural language processing techniques for automatic extraction of vocabulary pertaining to agriculture *** the second step semantic relationships between the extracted terms and phrases are identified.A rulebased reasoning algorithm RelExOnt has been proposed for the said *** evaluation of the term extraction output yields precision and recall of 75.7%and 60%,*** relation extraction algorithm,RelExOnt performs well with an average precision of 86.89%.

关键词： Relation extraction Term EXtraction NLP Ontology Knowledge-based relation extraction Self-supervised relation extraction

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Knights in Action： Lectin Receptor-Like Kinases in Plant Development and Stress Responses

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Molecular Plant 2013年第5期6卷 1405-1418页

作者： neha Vaid Anca Macovei Narendra Tuteja Plant Molecular Biology Group International Centre for Genetic Engineering and Biotechnology Aruna Asaf Ali Marg New Delhi 110067 India

The Receptor-Like Kinase （RLK） is a vast protein family with over 600 genes in Arabidopsis and 1100 in rice. The Lectin RLK （LecRLK） family is believed to play crucial roles in saccharide signaling as well as stress perception. All the LecRLKs possess three domains： an N-terminal lectin domain, an intermediate transmembrane domain, and a C-terminal kinase domain. On the basis of lectin domain variability, LecRLKs have been subgrouped into three subclasses： L-, G-, and C-type LecRLKs. While the previous studies on LecRLKs were dedicated to classification, comparative structural analysis and expression analysis by promoter-based studies, most of the recent studies on LecRLKs have laid special emphasis on the potential of this gene family in regulating biotic/abiotic stress and developmental pathways in plants, thus mak- ing the prospects of studying the LecRLK-mediated regulatory mechanism exceptionally promising. In this review, we have described in detail the LecRLK gene family with respect to a historical, evolutionary, and structural point of view. Furthermore, we have laid emphasis on the LecRLKs roles in development, stress conditions, and hormonal response. We have also discussed the exciting research prospects offered by the current knowledge on the LecRLK gene family. The multitude of the LecRLK gene family members and their functional diversity mark these genes as both interesting and worthy candidates for further analysis, especially in the field of crop improvement.

关键词： classification hormone signaling Lectin Receptor-Like Kinase membrane protein plant development RLKfamily stress.

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Dynamical Casimir effect in superradiant light scattering by Bose Einstein condensate in an optomechanical cavity

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Chinese Physics B 2014年第2期23卷 151-160页

作者： Sonam Mahajan neha Aggarwal Aranya B Bhattacherjee ManMohan Department of Physics and Astrophysics University of Delhi Department of Physics ARSD CollegeUniversity of Delhi (South Campus) School of Physical Sciences Jawaharlal Nehru University

We investigate the effects of dynamical Casimir effect in superradiant light scattering by Bose-Einstein condensate in an optomechanical cavity. The system is studied using both classical and quantized mirror motions. The cavity frequency is harmonically modulated in time for both the cases. The main quantity of interest is the number of intracavity scattered photons. The system has been investigated under the weak and strong modulations. It has been observed that the amplitude of the scattered photons is more for the classical mirror motion than the quantized mirror motion. Also, initially, the amplitude of scattered photons is high for lower modulation amplitude than higher modulation amplitude. We also found that the behavior of the plots are similar under strong and weak modulations for the quantized mirror motion.

关键词： Bose-Einstein condensates dynamical Casimir effect superradiant light scattering optomechan- ical cavity

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Medical management of COVID-19 clinic

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The Journal of Biomedical Research 2020年第6期34卷 416-421页

作者： neha Mehta Renli Qiao Division of Pulmonary Critical Care and Sleep MedicineDepartment of MedicineKeck School of MedicineUniversity of Southern CaliforniaLos AngelesCA 90033USA.

The start of the global pandemic secondary to the novel SARS-CoV-2 virus was a time of uncertainty and fear as it claimed the lives of many across the *** then,there has been a plethora of research designs and trials in order to understand what we can do to stop the spread of the *** and health care providers have utilized old medications and revamped them for current use such a convalescent plasma and steroids,as well as creating novel therapeutics,some with promising *** this article,we review the major therapeutic options currently available and look into what the future still holds in order to further our understanding of this mysterious disease.

关键词： COVID-19 treatment steroids remdesivir vaccine

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Ocular prodrugs: Attributes and challenges

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Asian Journal of Pharmaceutical Sciences 2021年第2期16卷 175-191页

作者： Jagpreet kour neha Kumari Bharti Sapra Department of Pharmaceutical Sciences and Drug Research Punjabi UniversityPatiala 147001India

Ocular drug delivery is one of the most attention-grabbing and challenging endeavors among the numerous existing drug delivery *** a drug delivery point of view,eye is an intricate organ to investigate and *** spite of many limitations,advancements have been made with the intention of improving the residence time or permeation of the drug in the ocular *** bioavailability of topically administered drugs is the major issue pertaining to ocular drug *** efforts have been made towards improving precorneal residence time and corneal penetration,***,prodrugs and ionpairing,*** approach(chemical approach)has been explored by the formulation scientists to optimize the physicochemical and biochemical properties of drug molecules for improving ocular *** of ocular prodrugs is a challenging task as they should exhibit optimum chemical stability as well as enzymatic liability so that they are converted into parent drug after administration at the desired *** review will encompass the concept of derivatization and recent academic and industrial advancements in the field of ocular *** progression in prodrug designing holds a potential future for ophthalmic drug delivery.

关键词： Bioavailability Corneal permeability Esterase Stability Lipophilicity Ocular prodrugs

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Role of beneficial microbial gene pool in mitigating salt/nutrient stress of plants in saline soils through underground phytostimulating signalling molecules

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Pedosphere 2023年第1期33卷 153-171页

作者： Shalini TIWARI Barkha SHARMA neha BISHT Lakshmi TEWARI Department of Microbiology College of Basic Science&HumanitiesG.B.Pant University of Agriculture&TechnologyPantnagarUttarakhand 263145India

Soil salinity diminishes soil health and reduces crop yield,which is becoming a major global *** stress is one of the primary stresses,leading to several other secondary stresses that restrict plant growth and soil *** major secondary stresses induced in plants under saline-alkaline conditions include osmotic stress,nutrient limitation,and ionic stress,all of which negatively impact overall plant *** stressed conditions,certain beneficial soil microflora are known to have evolved phytostimulating mechanisms,such as the synthesis of osmoprotectants,siderophores,1-aminocyclopropane-1-carboxylic acid(ACC)deaminase activity,phosphate solubilization,and hormone production,which enhance plant growth and development while mitigating nutrient *** soil-borne bacterial species such as Bacillus,Pseudomonas,and Klebsiella and fungal strains such as Trichoderma,Aspergillus,Penicillium,Alternaria,and Fusarium also aid in reducing salinity ***-solubilizing microorganisms also assist in nutrient acquisition via both enzymatic and non-enzymatic *** the case of enzymatic processes,they produce different enzymes such as alkaline phosphatases and phytases,whereas non-enzymatic processes produce organic acids such as gluconic,citric,malic,and oxalic *** native halotolerant/halophilic soil microbial gene pool with multifunctional traits and stress-induced gene expression can be developed as suitable bio-inoculants to enhance stress tolerance and optimize plant growth in saline soils.

关键词： abiotic stress crop improvement gene expression halotolerant microbial diversity phosphate solubilization plant growth promoting traits soil health

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Surging footprints of mathematical modeling for prediction of transdermal permeability

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Asian Journal of Pharmaceutical Sciences 2017年第4期12卷 299-325页

作者： neha Goyal Purva Thatai Bharti Sapra Pharmaceutics Division Department of Pharmaceutical Sciences Punjabi University

In vivo skin permeation studies are considered gold standard but are difficult to perform and evaluate due to ethical issues and complexity of process involved. In recent past, a useful tool has been developed by combining the computational modeling and experimental data for expounding biological complexity. Modeling of percutaneous permeation studies provides an ethical and viable alternative to laboratory experimentation. Scientists are exploring complex models in magnificent details with advancement in computational power and technology. Mathematical models of skin permeability are highly relevant with respect to transdermal drug delivery, assessment of dermal exposure to industrial and environmental hazards as well as in developing fundamental understanding of biotransport *** review focuses on various mathematical models developed till now for the transdermal drug delivery along with their applications.

关键词： Mathematical models Multiple linear regression Artificial neural network Iontophoresis based models Compartmental modeling Porous pathway models

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Syncope in a 3-year-old male: A case report

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World Journal of Emergency Medicine 2020年第3期11卷 188-190页

作者： neha Gupta Saurabh Talathi Sarika Kalantre Department of Pediatrics Lincoln Medical CenterBronxNew YorkUSA Division of Pediatric Cardiology Department of PediatricsChildren's Hospital at Montefi ore and Albert Einstein College of MedicineBronxNew YorkUSA

Dear editor,Syncope is a common presenting complaint in pediatric emergency *** differential diagnosis of syncope is vast,including various neurological and cardiac *** syndrome(BrS)is a primary inherited arrhythmia which can present with syncope but can lead to sudden cardiac deaths due to ventricular fi *** is a rare genetic condition,often diagnosed in the *** presenting in childhood,especially symptomatic BrS,is extremely *** present a case of a previously healthy 3-year-old male who presented to the emergency department with syncope and was later diagnosed with BrS.

关键词： cardiac diagnosis ventricular

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