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Multi-wavelength nanowire micro-LEDs for future high speed optical communication

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Opto-Electronic Advances 2024年第3期7卷 1-3页

作者： Ayush pandey Zetian Mi Department of Electrical Engineering and Computer Science University of MichiganAnn ArborMI 48109USA

The future of optoelectronics is directed towards small-area light sources,foremost being ***,their use has been inhibited so far primarily due to fabrication and integration challenges,which impair efficiency and ***,bottom-up nanostructures grown using selective area epitaxy have garnered attention as a solution to the aforementioned *** Fu *** used this technique to demonstrate uniform p-i-n core-shell InGaAs/Inp nanowire array light emitting *** devices are capable of voltage and geometry-controlled multi-wavelength and high-speed *** publication accentuates the wide capabilities of bottom-up nanostructures to resolve the difficulties of nanoscale optoelectronics.

关键词： communication high operations

Understanding poromechanical response of a biogenic coalbed methane reservoir

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International Journal of Coal Science & Technology 2024年第3期11卷 32-50页

作者： rohit pandey Satya Harpalani Virginia Tech BlacksburgUSA Southern Illinois University CarbondaleUSA

Biogenic coalbed methane(BCBM)reservoirs aim to produce methane from in situ coal deposits following microbial conversion of *** of BCBM reservoirs requires economic methane production within an acceptable *** work reported here quantifies the findings of previously published qualitative work,where it was found that bioconversion induces strains in the pore,matrix and bulk *** imaging and dynamic strain monitoring techniques,the bioconversion induced strain is quantified *** understand the effect of these strains from a reservoir geomechanics perspective,a corresponding poromechanical model is ***,findings of imaging experiments are validated using core-flooding flow ***,expected field-scale behavior of the permeability response of a BCBM operation is modeled and *** results of the study indicated that,for Illinois coals,bioconversion induced strains result in a decrease in fracture porosity,resulting in a detrimental permeability drop in excess of 60%during bioconversion,which festers itself exponentially throughout its producing *** indicate that reservoirs with high initial permeability that will support higher Darcian flowrates,would be better suited for coal bioconversion,thereby providing a site-selection criteria for BCBM operations.

关键词： Coal bioconversion poromechanical model reservoir response Bioconversion induced strain

Function and dysfunction of GEMIN5:understanding a novel neurodevelopmental disorder

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Neural regeneration research 2024年第11期19卷 2377-2386页

作者： Charles H.Nelson Udai B.pandey Department of pediatrics Division of Child NeurologyChildren’s Hospital of PittsburghUniversity of Pittsburgh Medical CenterPittsburghPAUSA Children’s Neuroscience Institute Children’s Hospital of PittsburghUniversity of Pittsburgh Medical CenterPittsburghPAUSA

The recent identification of a neurodevelopmental disorder with cerebellar atrophy and motor dysfunction(NEDCAM)has resulted in an increased interest in GEMIN5,a multifunction rNA-binding *** the largest member of the survival motor neuron complex,GEMIN5 plays a key role in the biogenesis of small nuclear ribonucleoproteins while also exhibiting translational regulatory functions as an independent *** many questions remain regarding both the pathogenesis and pathophysiology of this new disorder,considerable progress has been made in the brief time since its *** this review,we examine GEMIN5 within the context of NEDCAM,focusing on the structure,function,and expression of the protein specifically in regard to the disorder ***,we explore the current animal models of NEDCAM,as well as potential molecular pathways for treatment and future directions of *** review provides a comprehensive overview of recent advances in our understanding of this unique member of the survival motor neuron complex.

关键词： cerebellar atrophy GEMIN5 neurodevelopmental disorder neurological disease SMN complex

Towards sustainable agriculture:Harnessing AI for global food security

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Artificial Intelligence in Agriculture 2024年第2期12卷 72-84页

作者： Dhananjay K.pandey richa Mishra Amity Institute of Biotechnology Amity University JharkhandRanchi 835303India ICFAI University JharkhandRanchi 835222India

The issue of food security continues to be a prominent global concern,affecting a significant number of individ-uals who experience the adverse effects of hunger and *** finding of a solution of this intricate issue necessitates the implementation of novel and paradigm-shifting methodologies in agriculture and food *** recent times,the domain of artificial intelligence(AI)has emerged as a potent tool capable of instigating a profound influence on the agriculture and food *** technologies provide significant advantages by opti-mizing crop cultivation practices,enabling the use of predictive modelling and precision agriculture techniques,and aiding efficient crop monitoring and disease ***,AI has the potential to optimize sup-ply chain operations,storage management,transportation systems,and quality assurance *** also tackles the problem of food loss and waste through post-harvest loss reduction,predictive analytics,and smart inventory *** study highlights that how by utilizing the power of AI,we could transform the way we produce,distribute,and manage food,ultimately creating a more secure and sustainable future for all.

关键词： Global food security Artificial intelligence Crop improvement Food supply chain Sustainable resource management Food loss and waste

Small activating rNA delivery in vivo:Challenges,prospects,and lessons learned from sirNA delivery

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Nano research 2024年第10期17卷 8990-9002页

作者： Shalini pandey patrick T.Bednarz Matthias A.Oberli Omid Veiseh Department of Bioengineering William Marsh Rice UniversityHouston 77030USA Xibus Systems 199 Dexter AveWatertown 02472USA

Over the last two decades,small activating rNAs(sarNAs)have quickly moved from discovery to clinical *** as 20 nucleotide long,double stranded rNA,sarNAs have the unique ability to increase gene transcription at the chromatin *** therapeutic modality has great potential as a safe and redosable alternative to gene therapy by increasing target protein expression without changing the genetic *** describe the successful in vivo sarNA delivery vectors and found that similar to small interfering rNA(sirNA)and mrNA targeting tissues outside the liver works best at the end of a *** highlight nanoparticle vectors and rNA-conjugates,where some success has been reported for non-hepatic delivery of sarNAaptamers.

关键词： small activating rNA hepatic bias lipid nanoparticles rNA-conjugates

Colorimetric Sensor for Detection of Tabun Mimic Diethyl Cyanophosphonate

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Journal of Analysis and Testing 2024年第3期8卷 374-384页

作者： Madhu Bala Dheeraj pandey Nikita patel Sheetal Yadav Abha Sharma Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research RaebareliTransit Campus

Herein,a colorimetric chemosensor （probe 7） was designed and synthesized for sensing diethyl cyanophosphonate （DCNp）,a Tabun nerve agent *** sensitive,selective,fast response and photostable probe 7 in dimethylsulfoxide （DMSO）responded to DCNp at low concentrations with visual naked eye color change from pink to pale yellow and displayed unresponsive behaviour against various interferences except for copper ions,which can be di?erentiated by adding ethylene diamine where the yellow color persisted in the case of DCNp but turned to pink in the case of copper ***,the yellow aqueous solution of probe 7 at pH 10 and 12 turned colorless against the response of *** limit of detection（LOD） of probe 7 was found to be 50 nmol/L in an aqueous basic solution at pH 10 for the detection of *** formation of the cyclized product was elucidated by1H and31p NMr nuclear magnetic resonance (1H NMr,31p NMr),Fourier transform infrared spectroscopy （FTIr）,and high-resolution mass spectrometry （HrMS） ***?lter paper and silica plate loaded with probe 7 were fabricated for real-time and on-site detection of DCNp.

关键词： Chemosensor Colorimetric Fluorescence Tabun mimic

Dynamics of a delay-induced prey-predator system with interaction between immature prey and predators

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International Journal of Biomathematics 2024年第2期17卷 139-176页

作者： Soumik pandey Abhijit Sarkar Debashis Das Sarbani Chakraborty Department of Mathematics West Bengal State University Barasat-7000126West BengalIndia Department of Basic Science&Humanities JIS College of Engineering Kalyani-741235West BengalIndia

In biological pest control systems,several pests(including insects,mites,weeds,etc.)are controlled by biocontrol agents that rely primarily on *** this biocontrol management ecology,we have created a three-tier prey-predator model with prey phase structure and predator gestation *** studies have demonstrated that predators with Holling type-II functional responses sometimes consume immature prey.A study of the well-posedness and local bifurcation(such as saddle-node and transcritical)near the trivial and planer equilibrium points is carried *** any time lag,the prey development coeficient has a stabilizing impact,while increasing attack rate accelerates *** transformation rate and handling time are shown to cause multiple stability switches in the *** results demonstrate time delay is the key destabilizer that destroys *** model can replicate more realistic events by including time-dependent factors and exploring the dynamic behavior of nonautonomous *** the presence of time delay,sufficient conditions of permanence and global attractivity of the nonautonomous system are ***,MATLAB simulations are performed to validate the analytical findings.

关键词： Holling type-II functional response stage-structure bifurcation time delay seasonality

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

Investigating the Evolution of Amati parameters with redshift

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research in Astronomy and Astrophysics 2024年第1期24卷 188-200页

作者： Meghendra Singh Darshan Singh Kanhaiya Lal pandey Dinkar Verma Shashikant Gupta Delhi Metro rail Corporation Limited New Delhi 110001India GD Goenka University Gurugram 122103India Department of physics Mata Raj Kaur Institute of Engineering and TechnologyRewari 123401India Department of physics School of Advanced SciencesVellore Institute of TechnologyVellore 632014India

Gamma-ray bursts(GrBs) are among the brightest objects in the Universe and, hence, can be observed up to a very high redshift. properly calibrated empirical correlations between intensity and spectral correlations of GrBs can be used to estimate the cosmological parameters. However, the possibility of the evolution of GrBs with redshift is a long-standing puzzle. In this work, we used 162 long-duration GrBs to determine whether GrBs below and above a certain redshift have different properties. The GrBs are split into two groups, and we fit the Amati relation for each group separately. Our findings demonstrate that estimations of the Amati parameters for the two groups are substantially dissimilar. We perform simulations to investigate whether the selection effects could cause the difference. Our analysis shows that the differences may be either intrinsic or due to systematic errors in the data, and the selection effects are not their true origin. However, in-depth analysis with a new data set comprised of 119 long GrBs shows that intrinsic scatter may partly be responsible for such effects.

关键词： Cosmology gamma rays:general (cosmology:)large-scale structure of universe galaxies:high-redshift