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Deep learning-based detection of indicator species for monitoring biodiversity in semi-natural grasslands

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Environmental Science and Ecotechnology 2024年第5期21卷 238-247页

作者： deepak H.Basavegowda Inga Schleip Paul Mosebach Cornelia Weltzien Technische Universitat Berlin Straße des 17.Juni 13510623BerlinGermany Leibniz-Institut für Agrartechnik und Biookonomie e.v.(ATB) Max-Eyth-Allee 10014469PotsdamGermany Hochschule für nachhaltige Entwicklung Eberswalde Schicklerstraße 516225EberswaldeGermany

Deep learning(DL)has huge potential to provide valuable insights into biodiversity changes in speciesrich agricultural ecosystems such as semi-natural grasslands,helping to prioritize and plan conservation ***,DL has been underexplored in grassland conservation efforts,hindered by data scarcity,intricate ecosystem interactions,and limited economic ***,we developed a DL-based object-detection model to identify indicator species,a group of vascular plant species that serve as surrogates for biodiversity assessment in high nature value(HNv)*** selected indicator species Armeria maritima,Campanula patula,Cirsium oleraceum,and Daucus *** overcome the hurdle of limited data,we grew indicator plants under controlled greenhouse conditions,generating a sufficient dataset for DL model *** model was initially trained on this greenhouse ***,smaller datasets derived from an experimental grassland plot and natural grasslands were added to the training to facilitate the transition from greenhouse to field *** optimized model achieved remarkable average precision(AP)on test datasets,with 98.6 AP50 on greenhouse data,98.2 AP50 on experimental grassland data,and 96.5 AP50 on semi-natural grassland *** findings highlight the innovative application of greenhouse-grown specimens for the in-situ identification of plants,bolstering biodiversity monitoring in grassland ***,the study illuminates the promising role of DL techniques in conservation programs,particularly as a monitoring tool to support result-based agrienvironment schemes.

关键词： Species-rich grasslands Biodiversity monitoring Object detection Cross-domain knowledge transfer

Novel Lyapunov-based rapid and ripple-free MPPT using a robust model reference adaptive controller for solar Pv system

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Protection and Control of Modern Power Systems 2023年第1期8卷 205-229页

作者： Saibal Manna Ashok kumar Akella deepak kumar Singh Department of Electrical Engineering National Institute of Technology JamshedpurJharkhand 831014India

The technological,economic,and environmental benefits of photovoltaic(Pv)systems have led to their wide-spread adoption in recent years as a source of electricity ***,precisely identifying a Pv system’s maximum power point(MPP)under normal and shaded weather conditions is crucial to conserving the maximum generated *** of the biggest concerns with a Pv system is the existence of partial shading,which produces multiple peaks in the P–v characteristic *** these circumstances,classical maximum power point tracking(MPPT)approaches are prone to getting stuck on local peaks and failing to follow the global maximum power point(GMPP).To overcome such obstacles,a new Lyapunov-based Robust Model Reference Adaptive Controller(LRMRAC)is designed and implemented to reach GMPP rapidly and *** proposed controller also achieves MPP accurately under slow,abrupt and rapid changes in radiation,temperature and load *** and OPAL-RT real-time simulators in various scenarios are performed to verify the superiority of the proposed approach over the other state-of-the-art methods,i.e.,ANFIS,INC,vSPO,and P&*** and GMPP are accomplished in less than 3.8 ms and 10 ms,*** on the results presented,the LRMRAC controller appears to be a promising technique for MPPT in a Pv system.

关键词： Photovoltaic(Pv) MPPT Partial shading Lyapunov-based robust model reference adaptive control(LRMRAC) Lyapunov stability

Gindarudine,a novel morphine alkaloid from Stephania glabra

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Chinese Chemical Letters 2009年第7期20卷 823-826页

作者： deepak kumar Semwal Usha Rawat Department ofChemistry H.N.B.Garhwal University SrinagarUttarakhand 246174 India

A novel morphine alkaloid, named gindarudine 1 has been isolated from ethanol extract of Stephania glabra tubers, together with four known alkaloids, palmatine, dehydrocorydalmine, stepharanine, and 8-（4＇-methoxybenzyl）-xylopinine. Compound 1 was elucidated as 3,6-O,N-detrimethyl-10-hydroxy-l-methoxy-thebaine by means of spectroscopic data including 2D NMR studies. C 2009 deepak kumar Semwal. Published by Elsevier B.v. on behalf of Chinese Chemical Society. All rights reserved.

关键词： Stephania glabra Menispermaceae Gindaru Gindarudine

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

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Infectious Diseases of Poverty 2024年第3期13卷 58-72页

作者： Malu Mohan Jeromie W.v.Thangaraj Sumit Pandey G.Sri Lakshmi Priya Sivavallinathan Arunachalam Rahul Sharma Hemant deepak Shewade B.Aishwarya K.Afeeq Afsana Khatoon B.Gokulvijay Gude Sireesha Kavita Chandra S.Nandhakumar Prince Samuel C.Nanditha viswanathan Devika 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 Division Government of IndiaNew DelhiIndia

Background Ni-kshay Poshan Yojana(NPY)is a direct benefit transfer scheme of the Government of India introduced in 2018 to support the additional nutritional requirements of persons with TB(PwTB).Our recent nationwide evaluation of implementation and utilization of NPY using programmatic data of PwTB from nine randomly selected Indian states,reported a 70%coverage and high median delay in benefit *** undertook a qualitative study between January and July 2023,to understand the detailed implementation process of NPY and explore the enablers and barriers to effective implementation and utilization of the NPY *** We followed a grounded theory approach to inductively develop theoretical explanations for social phenomena through data generated from multiple *** conducted 36 in-depth interviews of national,district and field-level staff of the National Tuberculosis Elimination Programme(NTEP)and NPY beneficiaries from 30 districts across nine states of India,selected using theoretical *** analytical framework developed through inductive coding of a set of six interviews,guided the coding of the subsequent *** and themes emerged through constant comparison and the data collection continued until theoretical *** Stakeholders perceived NPY as a beneficial *** political commitment from the state administration,mainstreaming of NTEP work with the district public healthcare delivery system,availability of good geographic and internet connectivity and state-specific grievance redressal mechanisms and innovations were identified as enablers of ***,the complex,multi-level benefit approval process,difficulties in accessing banking services,perceived inadequacy of benefits and overworked 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

Influence of tool rotational speed on mechanical and corrosion behaviour of friction stir processed AZ31/Al_(2)O_(3)nanocomposite

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镁合金学报(英文) 2023年第7期11卷 2585-2599页

作者： Ashish kumar v.P.Singh Akhileshwar Nirala R.C.Singh Rajiv Chaudhary Abdel-Hamid I.Mourad B.K.Sahoo deepak kumar Department of Mechanical Engineering Delhi Technological UniversityDelhi 110042India Department of Mechanical Engineering Galgotias College of Engineering and Technology Greater Noida 201310India Department of Mechanical Engineering National Institute of Technology MizoramAizawl 796012India Department of Mechanical Engineering IES College of Technology Bhopal462044India Mechanical and Aerospace Engineering Department College of EngineeringUnited Arab Emirates UniversityAl-Ain 15551United Arab Emirates Materials Engineering Division CSIR-National Metallurgical Laboratory(NML)Jamshedpur831007India Department of Mechanical Engineering Carnegie Mellon UniversityPittsburghPA 15213USA

Nano-sized reinforcements improved the mechanical characteristics efficiently by promoting more implicit particle hardening mechanisms compared to micron-sized ***-sized particles lessen the critical particle solidification velocity for swamp and thus offers better *** the present investigation,the friction stir processing(FSP)is utilized to produce AZ31/Al_(2)O_(3)nanocomposites at various tool rotation speeds(i.e.,900,1200,and 1500 rpm)with an optimized 1.5%volume alumina(Al_(2)O_(3))reinforcement *** mechanical and corrosion behavior of AZ31/Al_(2)O_(3)-developed nanocomposites was investigated and compared with that of the AZ31 base *** AZ31 alloy experienced a comprehensive dynamic recrystallization during FSP,causing substantial grain ***-size strengthening is the primary factor contributed to the enhancement in the strength of the fabricated *** strength and yield strength values were lower than those for the base metal matrix,although an upward trend in both values has been observed with an increase in tool rotation *** 19.72%increase in hardness along with superior corrosion resistance was achieved compared to the base alloy at a tool rotational speed of 1500 *** corrosion currents(Jcorr)of all samples dropped with increase in the rotational speed,in contrast to the corrosion potentials(Ecorr),which *** values of Jcorr of AZ31/Al_(2)O_(3)were 42.3%,56.8%,and 65.5%lower than those of AZ31 alloy at the chosen rotating speeds of 900,1200,and 1500 rpm,*** corrosion behavior of friction stir processed nanocomposites have been addressed in this manuscript which has not been given sufficient attention in the existing ***,this work offers an effective choice for the quality assurance of the FSP process of AZ31/Al_(2)O_(3)*** obtained results are relevant to the development of lightweight automobile and aerospace structures and components

关键词： Friction stir processing AZ31 alloy Al_(2)O_(3) Nanocomposite Mechanical properties Corrosion resistance

Non-linear buckling analysis of imperfect thin spherical pressure hull for manned submersible

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Journal of Ocean Engineering and Science 2017年第4期2卷 293-300页

作者： SB.Pranesh deepak kumar v.Anantha Subramanian D.Sathianarayanan GA.Ramadass Department of Ocean Engineering Indian Institute of Technology MadrasChennai 600036India National Institute of Ocean Technology Ministry of Earth SciencesChennai 600100India

Thin spherical pressure hulls are used as a human occupancy in deep water *** and other standards specify the imperfection allowed for pressure *** analyses are carried out to find the buckling pressure for both perfect and imperfect thin spherical pressure hulls,considering the geometric and material *** is observed that there is a huge variation in the elastic and inelastic buckling pressure in perfect spherical pressure ***,if the manufacturing imperfections are considered in the inelastic numerical analysis,still there is a reduction in the buckling *** criteria,for deep water pressure hulls,is that both buckling pressure and yield pressure must be greater than the design *** the elastic analysis,if t/D>0.006 buckling pressure is always greater than the yield pressure whereas in the inelastic analysis,the buckling pressure is falling below the yield pressure for all t/D ***,inelastic numerical analysis with manufacturing imperfection has to considered in the design of deep water spherical pressure hulls of manned submersibles.

关键词： Manned submersible Spherical pressure hull Non-linear Buckling Imperfection Numerical analysis

Delivery strategies for CRISPR/Cas genome editing tool for retinal dystrophies:challenges and opportunities

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Asian Journal of Pharmaceutical Sciences 2022年第2期17卷 153-176页

作者： Aayushi Lohia deepak kumar Sahel Mohd Salman vivek Singh Indumathi Mariappan Anupama Mittal deepak Chitkara Department of Pharmacy Birla Institute of Technology and SciencePilani(BITS-Pilani)Vidya Vihar CampusPilani 333031India Prof.Brien Holden Eye Research Center Champalimaud Translational Centre for Eye ResearchL.V.Prasad Eye InstituteKallam Anji Reddy CampusHyderabad 500034India

CRISPR/Cas,an adaptive immune system in bacteria,has been adopted as an efficient and precise tool for site-specific gene editing with potential therapeutic *** has been explored for a variety of applications,including gene modulation,epigenome editing,diagnosis,mRNA editing,*** has found applications in retinal dystrophic conditions including progressive cone and cone-rod dystrophies,congenital stationary night blindness,X-linked juvenile retinoschisis,retinitis pigmentosa,age-related macular degeneration,leber’s congenital amaurosis,*** of the therapies for retinal dystrophic conditions work by regressing symptoms instead of reversing the ***/Cas9 through indel could impart beneficial effects in the reversal of gene mutations in dystrophic *** research has also consolidated on the approaches of using CRISPR systems for retinal dystrophies but their delivery to the posterior part of the eye is a major concern due to high molecular weight,negative charge,and in vivo stability of CRISPR ***,non-viral vectors have gained interest due to their potential in tissue-specific nucleic acid(miRNA/siRNA/CRISPR)*** review highlights the opportunities of retinal dystrophies management using CRISPR/Cas nanomedicine.

关键词： CRISPR/Cas9 Gene editing Retinal dystrophies Non-viral nanocarriers

Comparison of surgically induced astigmatism in various incisions in manual small incision cataract surgery

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International Journal of Ophthalmology(English edition) 2014年第6期7卷 1001-1004页

作者： Nidhi Jauhari deepak Chopra Rajan kumar Chaurasia Ashutosh Agarwal Department of Ophthalmology Vivekananda Polyclinic and Institute of Medical SciencesVivekanandpuriLucknowUttar Pradesh 226001India Department of Community Medicine Integral University of Medical Sciences and ResearchKursi RoadLucknowUttar Pradesh 226026India

AIMTo determine the surgically induced astigmatism (SIA) in Straight, Frown and Inverted v shape (Chevron) incisions in manual small incision cataract surgery (SICS).

关键词： manual small incision cataract surgery incisions surgically induced astigmatism

Comprehensive G?bner Basis Theory for a Parametric Polynomial Ideal and the Associated Completion Algorithm

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Journal of Systems Science & Complexity 2017年第1期30卷 196-233页

作者： KAPUR deepak Department of Computer Science University of New Mexico Albuquerque NM USA.

Groebner basis theory for parametric polynomial ideals is explored with the main objec- tive of nfinicking the Groebner basis theory for ideals. Given a parametric polynomial ideal, its basis is a comprehensive GrSbner basis if and only if for every specialization of its parameters in a given field, the specialization of the basis is a GrSbnerbasis of the associated specialized polynomial ideal. For various specializations of parameters, structure of specialized ideals becomes qualitatively different even though there are significant relationships as well because of finiteness properties. Key concepts foundational to GrSbner basis theory are reexamined and/or further developed for the parametric case：（i） Definition of a comprehensive Groebner basis, （ii） test for a comprehensive GrSbner basis, （iii） parameterized rewriting, （iv） S-polynomials among parametric polynomials, （v） completion algorithm for directly computing a comprehensive Groebner basis from a given basis of a parametric ideal. Elegant properties of Groebner bases in the classical ideal theory, such as for a fixed admissible term ordering, a unique GrSbner basis can be associated with every polynomial ideal as well as that such a basis can be computed from any Groebner basis of an ideal, turn out to be a major challenge to generalize for parametric ideals; issues related to these investigations are explored. A prototype implementation of the algorithm has been successfully tried on many examples from the literature.

关键词： Comprehensive GrSbner basis minimal comprehensive GrSbner basis parametric polyno-mial system parametric S-polynomial redundancy.