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Virtual-reality-based digital twin of office spaces with social distance measurement feature

Virtual Reality & Intelligent Hardware 2022年第1期4卷 55-75页

作者： Abhishek MUKHOPADHYAY g s rajshekar reddy KamalPreet singh sALUJA subhankar gHOsH Anasol PEÑA-RIOs gokul gOPAL Pradipta BIsWAs Indian Institute of science BangaloreIndia BT Plc UK

Background social distancing is an effective way to reduce the spread of the sARs-CoV-2 *** students and researchers have already attempted to use computer vision technology to automatically detect human beings in the field of view of a camera and help enforce social ***,because of the present lockdown measures in several countries,the validation of computer vision systems using large-scale datasets is a *** In this paper,a new method is proposed for generating customized datasets and validating deep-learning-based computer vision models using virtual reality(VR)*** VR,we modeled a digital twin(DT)of an existing office space and used it to create a dataset of individuals in different postures,dresses,and *** test the proposed solution,we implemented a convolutional neural network(CNN)model for detecting people in a limited-sized dataset of real humans and a simulated dataset of humanoid *** We detected the number of persons in both the real and synthetic datasets with more than 90%accuracy,and the actual and measured distances were significantly correlated(r=0.99).Finally,we used intermittent-layer-and heatmap-based data visualization techniques to explain the failure modes of a *** A new application of DTs is proposed to enhance workplace safety by measuring the social distance between *** use of our proposed pipeline along with a DT of the shared space for visualizing both environmental and human behavior aspects preserves the privacy of individuals and improves the latency of such monitoring systems because only the extracted information is streamed.

关键词： Virtual environment Digital twin 3D visualization Convolutional neural network Object detection social distancing

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Enhanced entropy generation and heat transfer characteristics of magnetic nano-encapsulated phase change materials in latent heat thermal energy storage systems

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Applied Mathematics and Mechanics(English Edition) 2024年第6期45卷 1051-1070页

作者： P.s.reddy P.sREEDEVI Department of Mathematics Rajeev Gandhi Memorial College of Engineering and TechnologyNandyal 518501India

The objective of the current study is to investigate the importance of entropy generation and thermal radiation on the patterns of velocity,isentropic lines,and temperature contours within a thermal energy storage device filled with magnetic nanoencapsulated phase change materials(NEPCMs).The versatile finite element method(FEM)is implemented to numerically solve the governing *** effects of various parameters,including the viscosity parameter,ranging from 1 to 3,the thermal conductivity parameter,ranging from 1 to 3,the Rayleigh parameter,ranging from 102 to 3×10^(2),the radiation number,ranging from 0.1 to 0.5,the fusion temperature,ranging from 1.0 to 1.2,the volume fraction of NEPCMs,ranging from 2%to 6%,the stefan number,ranging from 1 to 5,the magnetic number,ranging from 0.1 to 0.5,and the irreversibility parameter,ranging from 0.1 to 0.5,are examined in detail on the temperature contours,isentropic lines,heat capacity ratio,and velocity ***,the heat transfer rates at both the cold and hot walls are analyzed,and the findings are presented *** results indicate that the time taken by the NEPCMs to transition from solid to liquid is prolonged inside the chamber region as the fusion temperatureθf ***,the contours of the heat capacity ratio Cr decrease with the increase in the stefan number ste.

关键词： volume fraction of nano-encapsulated phase change material(NEPCM) radiation stefan number heat capacity ratio entropy generation

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CompactChain:an efficient stateless chain for UTXO-model blockchain

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Frontiers of Computer science 2024年第2期18卷 167-179页

作者： B swaroopa reddy T Uday Kiran reddy Department of Electrical Engineering Indian Institute of Technology HyderabadHyderabadTelangana 502285India

In this work,we propose a stateless blockchain called CompactChain,which compacts the entire state of the UTXO(Unspent Transaction Output)based blockchain systems into two RsA *** first accumulator is called Transaction Output(TXO)commitment which represents the TXO *** second one is called spent Transaction Output(sTXO)commitment which represents the sTXO *** this work,we discuss three algorithms:(i)To update the TXO and sTXO commitments by the *** miner also provides the proofs for the correctness of the updated commitments;(ii)To prove the transaction’s validity by providing a membership witness in TXO commitment and non-membership witness against sTXO commitment for a coin being spent by a user;(iii)To update the witness for the coin that is not yet spent;The experimental results evaluate the performance of the CompactChain in terms of time taken by a miner to update the commitments and time taken by a validator to verify the commitments and validate the *** compare the performance of CompactChain with the existing state-of-the-art works on stateless *** shows a reduction in commitments update complexity and transaction witness size which inturn reduces the mempool size and propagation latency without compromising the system throughput(Transactions per second(TPs)).

关键词： stateless blockchain RsA Accumulator sTXO commitment TXO commitment UTXO Non-interactive Proof of Exponentiation(NI-PoE) Transactions per second(TPs)

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Excellent photoluminescence and electrochemical properties of sm^(3+) doped Ca_(2)Mgsi_(2)O_(7) nanophosphor:Display and electrochemical sensor applications

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Journal of Rare Earths 2024年第6期42卷 1046-1055,I0002页

作者： R.B.Basavaraj K.sureshkumar D.P.Aarti M.B.Madhusudana reddy g.Nagaraju T.Ramakrishnappa g.R.Navyashree K.R.Venkatesha Babu K.s.Hemalatha Department of Physics BMS Institute of Technology and ManagementBangalore560064India Department of Chemistry BMS Institute of Technology and ManagementBangalore560064India Department of Chemistry School of Applied SciencesREVA UniversityBangalore560064India Energy Materials ResearchLaboratory Department of ChemistrySiddaganga Institute of TechnologyTumakuru57203KarnatakaIndia school of Physical sciences REVA UniversityBangalore560057Indi Department of Physics Govt.Science CollegeBengaluru560001India Department of Physics Maharani Science College for WomenMaharani Cluster UniversityBengaluru560001India

A series of orange-red light emitting Ca_(2)Mgsi_(2)O_(7):sm^(3+)nanopowders were fabricated via low-cost ecofriendly green combustion technique using Aloe vera gel as *** phase purity of the samples were confirmed by the powder X-ray diffraction(PXRD)*** single-phase tetragonal structure is observed from the PXRD results with no additional impurity *** band gap energy of the fabricated powders was estimated by diffuse reflectance spectra(DRs)and is found to be in the range of 4.01-5.98 eV.A high resolution scanning electron microscope(sEM)was used to study the morphological behaviour of the ***-like structures are observed from the sEM *** particle size was evaluated by transmission electron microscopy(TEM)and is found to be~50 *** interplanar distance is found to be 0.53 *** properties were systematically studied in *** phosphors are successfully excited at 403 nm NUV light,producing reddish-orange characteristic *** emission peaks are centered at 558(^(4)g_(5/2)→^(6)H_(5/2)),607(^(4)g_(5/2)→^(6)H_(7/2))and 645 nm(^(4)g_(5/2)→^(6)H_(9/2)),*** the observed peaks the red emanation(^(4)g_(5/2)→^(6)H_(7/2))is stronger than the orange emission(^(4)g_(5/2)→^(6)H_(5/2))in the current *** photoluminescent concentration quenching is noticed above 5 mol%sm^(3+)ion doping *** dipole-dipole interaction resulting in cross relaxation is found to be the principal cause of concentration quenching *** color features such as Commission Internationale de I’Eclairage(CIE)and correlated color temperature(CCT)were studied in *** optimized chromaticity coordinates were estimated to be(0.6363,0.3632),which fall in the reddish-orange *** average CCT value obtained is 3362 *** average color purity is found to be~82%.sm^(3+)incorporated Ca_(2)Mgsi_(2)O_(7) samples are possible contender for single white light generation commercial candidates owing to

关键词： green combustion Photoluminescence Orange-red emission Color purity sensors Rare earths

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Comprehensive Overview and Analytical study on Automatic Bird Repellent Laser system for Crop Protection

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Journal of Harbin Institute of Technology(New series) 2024年第1期31卷 38-53页

作者： sireesha Abotula srinivas gorla Prasad reddy PVgD Mohankrishna s Department of Computer science and Engineering GITAM Deemed to be UniversityVisakhapatnam 530045India Department of Information Technology Andhra UniversityVisakhapatnam 530003India Department of Computer science and systems Engineering Andhra UniversityVisakhapatnam 530003India

Birds are a huge hazard to agriculture all around the world,causing harm to profitable field *** use a variety of techniques to keep them away,including visual,auditory,tactile,and olfactory deterrents. This study presents a comprehensive overview of current bird repellant approaches used in agricultural contexts,as well as potential new ways. The bird repellent techniques include Internet of Things technology,Deep Learning,Convolutional Neural Network,Unmanned Aerial Vehicles,Wireless sensor Networks and Laser biotechnology. This study’s goal is to find and review about previous approach towards repellent of birds in the crop fields using various technologies.

关键词： Bird repellent crop protection IoT UAV Deep Learning

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Vitamin D, selenium in type 2 diabetes and Hashimoto's thyroiditis: Is it effective?

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World Journal of Diabetes 2024年第5期15卷 1048-1050页

作者： Kotha sugunakar reddy Vishakha Jain sakthivadivel Varatharajan Janardhana reddy Pallavali Department of general Medicine All India Institute of Medical SciencesTelanganaHyderabad 508126India

The study by Feng et al,explores treatment approaches for these coexisting *** emphasizes the potential advantages of selenium and vitamin D supplementation but also raises methodological and patient selection *** indicate a complex interplay between interventions and disease markers,prompting the need for further *** limitations,the study offers valuable insights into managing the intricate relationship between type 2 diabetes mellitus and Hashimoto's *** authors'contributions shed light on potential treatment avenues,although careful consideration of study design and patient characteristics is warranted for future investigations in this domain.

关键词： Vitamin D selenium Type 2 diabetes Mellitus Hashimoto’s thyroiditis

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Prediction,prevention and management of gastroesophageal reflux after per-oral endoscopic myotomy:An update

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World Journal of gastroenterology 2024年第9期30卷 1096-1107页

作者： Zaheer Nabi Pradev Inavolu Nageshwar reddy Duvvuru Department of gastroenterology Asian Institute of GastroenterologyHyderabad 500082TelanganaIndia Department of Medical gastroenterology Asian Institute of GastroenterologyHyderabad 500032TelanganaIndia

Achalasia cardia,the most prevalent primary esophageal motility disorder,is predominantly characterized by symptoms of dysphagia and *** principal therapeutic approaches for achalasia encompass pneumatic dilatation(PD),Heller's myotomy,and the more recent per-oral endoscopic myotomy(POEM).POEM has been substantiated as a safe and efficacious modality for the management of *** POEM demonstrates superior efficacy compared to PD and an efficacy parallel to Heller's myotomy,the incidence of gastroesophageal reflux disease(gERD)following POEM is notably higher than with the aforementioned *** symptomatic reflux post-POEM is relatively infrequent,the significant occurrence of erosive esophagitis and heightened esophageal acid exposure necessitates vigilant monitoring to preclude long-term gERD-related *** advancements in the field have enhanced our comprehension of the risk factors,diagnostic methodologies,preventative strategies,and therapeutic management of gERD subsequent to *** review focuses on the limitations inherent in the 24-h pH study for evaluating post-POEM reflux,potential modifications in the POEM technique to mitigate gERD risk,and the strategies for managing reflux following POEM.

关键词： Achalasia cardia Per-oral endoscopic myotomy gastroesophageal reflux Esophagitis gastroesophageal reflux disease

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Combatting Antibiotic Resistance:Regulatory Exclusivities for New Antibiotic Development in the United states and Europe

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Infectious Diseases & Immunity 2024年第2期4卷 79-85页

作者： Vivek reddy Murthannagari Vaishnavi Parimala Thumpati ganesh gNK Department of Pharmaceutics JSS College of PharmacyJSS Academy of Higher Education&ResearchOotyNilgirisTamil Nadu 643001India.

Antimicrobial resistance is a global concern that has led to millions of deaths *** changes occur naturally in pathogens such as viruses,bacteria,parasites,and *** overcome these concerns,there is a need to develop a new generation of *** an effort to encourage innovation,both the United states(Us)and the European Union have introduced exclusivity *** Us offered 5 years of additional nonpatent exclusivity for Qualified Infectious Disease Products under the generating Antibiotic Incentives Now *** parallel,the European Commission offers a patent extension of 12 months across Europe(EU)countries or the option to sell the vouchers to other pharmaceutical companies through transferable exclusivity extension *** review focuses on the most important innovative strategies of antibiotic development the drug approvals,their mode of action,spectra of activity,and targeting of microorganisms,in past 5 years were mentioned,and discusses how to overcome the challenges of drug approval under antibiotic exclusivity in the Us and EU,which will benefit the companies to develop novel drugs in several nations.

关键词： Drug resistance,microbial Exclusivity FDA EMA New antibiotics WHO

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Ipsilateral fractures of the acromion and coracoid processes of the scapula

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Chinese Journal of Traumatology 2024年第2期27卷 121-124页

作者： Yusuf Omar Qalib srinivasa reddy Medagam sunil Dachepalli Department of Orthopaedics The Fifth Affiliated Hospital of Sun Yat-Sen UniversityZhuhai519000GuangdongChina Department of Orthopaedics Yashoda HospitalsSomajigudaHyderabadTelangana500082India

A fracture of the acromion and coracoid processes of scapula is rarely seen in the outpatient clinic,due to the acromion's anatomical position and shape,as well as the strong ligaments and muscles that are attached to *** fractures are caused by either direct or indirect high-energy trauma injuries to the shoulder joint,leading to severe pain and a grossly restricted range of *** acromial classifications were reported,but this type of longitudinal plane fracture of the acromion process in our case is yet to be described in the current *** present a rare combination of the coracoid process and unstable acromion bony projection fractures that have not previously been noted for this type of *** closest to this is Kuhn's type III classification.A 51-year-old male presented to our emergency department complaining of the right shoulder pain and difficulty raising his arm following a 2-wheeler *** patient was managed by open reduction and internal fixation with 3 cannulated cancellous screws fixation and progressed well with no postoperative *** was asymptomatic postoperatively and regained full range of motion after 4 months.

关键词： Acromion scapular fracture Coracoid process

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Laparoscopic plication for diaphragmatic eventration in adults: Unveiling the mystery of eventration

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LAPAROsCOPIC ENDOsCOPIC AND ROBOTIC sURgERY 2024年第2期7卷 92-96页

作者： Mahesan, Balika reddy, Prasanna Kumar Anand, K. s. santhosh Harsha, M. Muvva sri Vijay, N. srikanth, sudarsan Apollo Hosp Dept Minimal Access Surg Chennai India Apollo Hosp Dept Surg Gastroenterol Chennai India

Diaphragm eventration is the permanent elevation of a hemidiaphragm and can be due to congenital or acquired causes. It is a rather uncommon condition in adults and causes a spectrum of symptoms, ranging from asymptomatic incidental findings on imaging to life-threatening respiratory distress. Asymptomatic patients do not require any treatment, but plication is the conventional, well-known method for treating symptomatic patients. Management varies depending on the symptoms. In this article, we discuss two rare cases of diaphragmatic eventration that were treated with minimal access surgery. (c) 2024 Zhejiang University. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://***/licenses/ by-nc-nd/4.0/).

关键词： Diaphragmatic eventration Minimal access surgery Laparoscopy

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