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multifunctional mXene/Carbon Nanotube Janus Film for Electromagnetic Shielding and Infrared Shielding/Detection in Harsh Environments

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Nano-micro Letters 2024年第10期16卷 543-560页

作者： Tufail Hassan aamir Iqbal Byungkwon Yoo Jun Young Jo Nilufer Cakmakci Shabbir madad Naqvi Hyerim Kim Sungmin Jung Noushad Hussain Ujala Zafar Soo Yeong Cho Seunghwan Jeong Jaewoo Kim Jung min Oh Sangwoon Park Youngjin Jeong Chong min Koo School of advanced materials Science and Engineering Sungkyunkwan UniversitySeobu-ro 2066Jangan-guSuwon-siGyeonggi-do 16419Republic of Korea Department of materials Science and Engineering Soongsil UniversitySeoul 06978Republic of Korea Institute of advanced Composite materials Korea Institute of Science and Technology92 Chudong-roBongdong-eupWanju-gunJeollabuk-do 55324Republic of Korea R&D Center INNOmXENE Co. Ltd.Daejeon 34365Republic of Korea School of Chemical Engineering Sungkyunkwan UniversitySeobu-ro 2066Jangan-guSuwon-siGyeonggi-do 16419Republic of Korea

multifunctional,flexible,and robust thin films capable of operating in demanding harsh temperature environments are crucial for various cutting-edge *** study presents a multifunctional Janus film integrating highly-crystalline Ti_(3)C_(2)T_(x) mXene and mechanically-robust carbon nanotube(CNT)film through strong hydrogen *** hybrid film not only exhibits high electrical conductivity(4250 S cm^(-1)),but also demonstrates robust mechanical strength and durability in both extremely low and high temperature environments,showing exceptional resistance to thermal *** hybrid Janus film of 15μm thickness reveals remarkable multifunctionality,including efficient electromagnetic shielding effectiveness of 72 dB in X band frequency range,excellent infrared(IR)shielding capability with an average emissivity of 0.09(a minimal value of 0.02),superior thermal camouflage performance over a wide temperature range(−1 to 300℃)achieving a notable reduction in the radiated temperature by 243℃ against a background temperature of 300℃,and outstanding IR detection capability characterized by a 44%increase in resistance when exposed to 250 W IR *** multifunctional mXene/CNT Janus film offers a feasible solution for electromagnetic shielding and IR shielding/detection under challenging conditions.

关键词： mXene/carbon nanotube Janus film Electromagnetic interference shielding Infrared shielding Thermal camouflage Infrared detection

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Left bundle branch pacing vs biventricular pacing in heart failure patients with left bundle branch block:A systematic review and meta-analysis

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World Journal of Cardiology 2024年第1期16卷 40-48页

作者： Farah Yasmin Abdul moeed Rohan Kumar Ochani hamna Raheel malik Ali Ehtsham Awan Ayesha Liaquat Arisha Saleem m.ham.ad aamir Nael Hawwa Salim Surani Department of Internal medicine Yale University School of MedicineNew HavenCT 06511United States Department of medicine Dow University of Health ScienceKarachi 74200SindhPakistan Department of medicine SUNNY Upstate Medical UniversitySyracuseNY 13210United States Department of Cardiovascular medicine Lehigh Valley Heart and Vascular InstituteAllentownPA 18105United States Department of medicine Cleveland ClinicClevelandOH 44195United States Department of medicine&Pharmacology Texas A&M UniversityCollege StationTX 77843United States

BACKGROUND Left bundle branch pacing(LBBP)is a novel pacing modality of cardiac resynchronization therapy(CRT)that achieves more physiologic native ventricular activation than biventricular pacing(BiVP).AIm To explore the validity of electromechanical resynchronization,clinical and echocardiographic response of *** Systematic review and meta-analysis were conducted in accordance with the standard guidelines as mentioned in detail in the methodology *** In our analysis,the success rate of LBBP-CRT was determined to be 91.1%.LBBP CRT significantly shortened QRS duration,with significant improvement in echocardiographic parameters,including left ventricular ejection fraction,left ventricular end-diastolic diameter and left ventricular end-systolic diameter in comparison with *** A significant reduction in New York Heart Association class and B-type natriuretic peptide levels was also observed in the LBBP-CRT group vs BiVP-CRT ***,the LBBP-CRT cohort had a reduced pacing threshold at follow-up as compared to BiVP-CRT.

关键词： Left bundle branch pacing Biventricular pacing QRS duration Left ventricular ejection fraction Heart failure

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Thermophoresis and concentration effects in a fourth grade peristaltic flow with convective walls

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Journal of Central South University 2017年第7期24卷 1654-1662页

作者： Ali aamir Asghar S Awais m Department of mathematics COMSATS Institute of Information TechnologyAttock 43600Pakistan Department of mathematics COMSATS Institute of Information TechnologyIslamabad 44000Pakistan Department of mathematics King Abdulaziz UniversityJeddah 21432Saudi Arabia

In this investigation,we have studied the peristaltic fluid flow in an asymmetric channel with convective *** grade fluid model has been utilized in view of the fact that the results of all other differential type models can be deduced as the special *** effects of heat and mass transfer are *** thermophoresis effects occur in the energy *** heat and mass boundary conditions have been given special *** wave length and low Reynolds number approximations are utilized for the *** analytic solutions for the velocity,temperature and concentration profiles are calculated using perturbation technique and elaborated in the form of graphical observations for various physical quantities.

关键词： fourth grade fluid convective boundary conditions pumping and trapping peristalsis

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Optimal Site and Size of Distributed Generation Allocation in Radial Distribution Network Using multi-objective Optimization

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Journal of modern Power Systems and Clean Energy 2021年第2期9卷 404-415页

作者： aamir Ali m.U.Keerio J.A.Laghari the Department of Electrical Engineering Quaid-E-Awam University of Engineering Science and TechnologyNawabshahPakistan

Distributed generation(DG)allocation in the distribution network is generally a multi-objective optimization *** maximum benefits of DG injection in the distribution system highly depend on the selection of an appropriate number of DGs and their capacity along with the best *** this paper,the improved decomposition based evolutionary algorithm(I-DBEA)is used for the selection of optimal number,capacity and site of DG in order to minimize real power losses and voltage deviation,and to maximize the voltage stability *** proposed I-DBEA technique has the ability to incorporate non-linear,nonconvex and mixed-integer variable problems and it is independent of local extrema *** order to validate the effectiveness of the proposed technique,IEEE 33-bus,69-bus,and 119-bus standard radial distribution networks are ***,the choice of optimal number of DGs in the distribution system is also *** simulation results of the proposed method are compared with the existing *** comparison shows that the proposed method has the ability to get the multi-objective optimization of different conflicting objective functions with global optimal values along with the smallest size of DG.

关键词： Distribution system distributed generation multi-objective optimization active power loss improved decomposition based evolutionary algorithm(I-DBEA)

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Double gallstone ileus

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Hepatobiliary & Pancreatic Diseases International 2008年第4期7卷 437-439页

作者： aamir Z Khan Joe Nariculum Stefano m Andreani adam Stacey-Clear Department of Surgery East Surrey Hospital Canada AvenueRedhillSurreyRH1 5RHUK Whipps Cross Hospital LeytonstoneUK

BACKGROUND:Gallstone ileus remains a rare but important cause of intestinal obstruction. mETHOD:We present a unique case of two gallstones causing intestinal obstruction at the same time. RESULTS:A 90-year-old lady presented with signs and symptoms of small bowel *** operation,two gallstones stuck at different points within the bowel were causing the obstruction and were removed. CONCLUSION:When operating on patients with small bowel obstruction from gallstone ileus,examination of the entire small bowel should be considered mandatory.

关键词： gallstones intestinal obstruction ileus

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Search for a lighter neutral custodial fiveplet scalar in the Georgi-machacek model

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Chinese Physics C 2022年第8期46卷 114-121页

作者： Chu Wang Jun-Quan Tao m.aamir Shahzad Guo-ming Chen S.Gascon-Shotkin Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Institut de Physique des 2 Infinis de Lyon Universitéde LyonUniversitéClaude Bernard Lyon 1CNRS-IN2P3Villeurbanne 69622France

many researches from both theoretical and experimental perspectives have been performed to search for a new Higgs Boson that is lighter than the 125 GeV Higgs boson,which was discovered at the LHC in *** this study,we explore the possibility of constraining a lighter neutral custodial fiveplet scalar H_(5)^(0) in the Georgimachacek(Gm) model using the latest results of the search for a lighter Higgs boson decaying into two photons from LHC *** custodial-singlet mass eigenstate h or H is considered to be the LHC observed 125 GeV Higgs boson.A new set of constrained parameters that is favoured by low-mass H_(5)^(0) is proposed to generate events *** production of H_(5)^(0) from a scan based on the constrained parameters is compared to the latest results of the search for a lighter Higgs boson decaying into two photons by the CmS Collaboration after applying theoretical constraints from the Gm model and constraints from all existing relevant experimental measurements,including the recent results of the Higgs boson searches by the *** analyses of the surviving Gm parameter space are *** tendencies and correlations of the Gm input parameters from phenomenological studies are *** addition,the discovery potential of the other interesting decay channels of this low-mass neutral custodial fiveplet scalar are discussed.

关键词： Georgi-machacek model lighter neutral custodial fiveplet scalar phenomenological studies

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Data Reliability and Sensors Lifetime in Bridge Health monitoring using LoRaWAN-Zigbee

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Computers, materials & Continua 2022年第11期73卷 2663-2678页

作者： Awad Ali Reyazur Rashid Irshad Ahmed Abdu Alattaab aamir Fatahayab Department of Computer Science College of Science and Arts-SharourahNajran UniversityNajranKingdom of Saudi Arabia Department of Computer Science JJTUJhunjhunuRajasthanIndia

The Wireless Sensor Network(WSN)is regarded as the fastest expanding technological trend in recent years due its application in a variety of *** the monitoring region,several sensor nodes with various sensing capabilities are installed to gather appropriate data and communicate it to the *** proposed system of the heterogeneous WSN employing LoRaWAN-Zigbee based hybrid communication is explored in this research *** communicate in a network,two Long–Range Wide Area Network(LoRaWAN)sensor clusters and two Zigbee sensor clusters are employed,together with two Zigbee and LoRaWAN *** suggested Golden eagle shepherd optimization(GESO)method then forms Zigbee as well as LoRaWAN networking ***,depending on energy usage and data packet size,the fitness of each sensor node is assessed using the Dynamic Intelligent Reasoning Based Neural(DIRN)*** software is used to implement and execute this *** the Zigbee network’s transmission distance is 650 m and the LoRaWAN network’s transmission range is 3.5 km,the system can function with a packet loss rate of less than 0.04 *** study shows significant gains in the performance of the system when compared to traditional approaches based on digital findings obtained on software solutions.

关键词： Zigbee LoRaWAN wireless sensor network health monitoring routing protocol

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Effects of the nitrification inhibitor nitrapyrin and the plant growth regulator gibberellic acid on yield-scale nitrous oxide emission in maize fields under hot climatic conditions

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Pedosphere 2021年第2期31卷 323-331页

作者： Khadim DAWAR Kamil SARDAR m.ham.ad ZAmAN Christoph mÜLLER Alberto SANZ-COBENA aamir KHAN Azam BORZOUEI Ana Gabriela PÉREZ-CASTILLO Department of Soil and Environmental Science University of Agriculture PeshawarPeshawa 25000(Pakistan) Soil and Water management&Crop Nutrition Joint FAO/IAEA Division of Nuclear Techniques in Food&AgricultureP.O.Box 100Vienna A-1400(Austria) Institute of Plant Ecology Justus Liebig UniversityHeinrich-Buff-Ring 26Giessen D-35392(Germany) School of Biology and Environmental Science University College DublinBelfieldD04 V1W8(Ireland) management of Environment and Agricultural Risks(CEIGRAm) ETSIAABUniversidad Poliécnica de MadridMadrid 28040(Spain) Agricultural Research School Nuclear Science and Technology Research InstituteP.O.Box 31465/1498Karaj(Iran) Environmental Pollution Research Center(CICA) University of Costa RicaMontes de Oca 11501(Costa Rica)

Nitrification inhibitors are widely used in agriculture to mitigate nitrous oxide(N_(2)O)emission and increase crop ***,no concrete information on their mitigation of N_(2)O emission is available under soil and environmental conditions as in Pakistan.A field experiment was established using a silt clay loam soil from Peshawar,Pakistan,to study the effect of urea applied in combination with a nitrification inhibitor,nitrapyrin(2-chloro-6-tri-chloromethyl pyridine),and/or a plant growth regulator,gibberellic acid(GA_3),on N_(2)O emission and the nitrogen(N)uptake efficiency of *** experimental design was a randomized complete block with five treatments in four replicates:control with no N(CK),urea(200 kg N ha^(-1))alone,urea in combination with nitrapyrin(700 g ha^(-1)),urea in combination with GA_3(60 g ha^(-1)),and urea in combination with nitrapyrin and GA_*** N_(2)O emission,yield,N response efficiency,and total N uptake were measured during the experimental *** treatment with urea and nitrapyrin reduced total N_(2)O emission by 39%–43%and decreased yield-scaled N_(2)O emission by 47%–52%,relative to the treatment with urea *** maize plant biomass,grain yield,and total N uptake increased significantly by 23%,17%,and 15%,respectively,in the treatment with urea and nitrapyrin,relative to the treatment with urea alone,which was possibly due to N saving,lower N loss,and increased N uptake in the form of ammonium;they were further enhanced in the treatment with urea,nitrapyrin,and GA_3 by 27%,36%,and 25%,respectively,probably because of the stimulating effect of GA_3 on plant growth and development and the reduction in biotic and abiotic *** results suggest that applying urea in combination with nitrapyrin and GA_3 has the potential to mitigate N_(2)O emission,improve N response efficiency,and increase maize yield.

关键词： fertilizer use efficiency greenhouse gas emission mitigation N response efficiency N uptake efficiency N_(2)O flux plant growth hormone urea

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Estimation of the Shale Oil/Gas Potential of a Paleocene–Eocene Succession: A Case Study from the meyal Area, Potwar Basin, Pakistan

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Acta Geologica Sinica(English Edition) 2017年第6期91卷 2180-2199页

作者： Ali aamir Ullah mATEE Hussain mATLOOB Asher Samuel BHATTI Rehman KHAISTA Department of Earth Sciences Quaid-i-Azam University Bacha Khan University National Centre of Excellence in Geology University of Peshawar

The successful exploration and production of shale-gas resources in the United States and Canada sets a new possible solution towards the energy crisis presently affecting most countries of Asia. This study focuses on the use of well log and 2D seismic data for the characterization of the shale oil/gas potential of a Paleocene-Eocene succession -- the meyal area in the Potwar Basin of Pakistan. Two shaly plays are identified in Paleocene-Eocene strata in well logs using ALogR and modified ALogR cross-plot techniques. The results indicate that Paleocene shale （the Patala Formation） and the lower shaly part of Eocene limestone （Sakesar Formation） can be potentially mature source rocks. However, the thermal maturity modelling proves that only the Paleocene shale is mature. Our results also suggest that the maturity responses on ALogR models for the lower shaly part of the Eocene limestone are due to trapped hydrocarbons in the intra-formational fractures. Petroelastic/petrophysical analysis of the Patala Formation reveals two potential shale oil/gas zones on the basis of Young＇s modulus, Poisson＇s ratio, Brittleness index and Total Organic Content at an exploitation depth of 3980-3988 m. This work can provide valuable insight for estimating shale oil/gas potential in highly deformed basins not only in Asia but in other parts of the world.

关键词： petroleum geology ALogR pseudo-sonic curve total organic carbon (TOC) burial history,thermal maturity

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COVID-19 Classification from X-Ray Images:An Approach to Implement Federated Learning on Decentralized Dataset

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Computers, materials & Continua 2023年第5期75卷 3883-3901页

作者： Ali Akbar Siddique S.m.Umar Talha m.aamir Abeer D.Algarni Naglaa F.Soliman Walid El-Shafai Department of Telecommunication Engineering Sir Syed University of Engineering&TechnologyKarachi75300Pakistan Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Security Engineering Lab Computer Science DepartmentPrince Sultan UniversityRiyadh11586Saudi Arabia Department of Electronics and Electrical Communications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt

The COVID-19 pandemic has devastated our daily lives,leaving horrific repercussions in its *** to its rapid spread,it was quite difficult for medical personnel to diagnose it in such a big *** who test positive for Covid-19 are diagnosed via a nasal PCR *** comparison,polymerase chain reaction(PCR)findings take a few hours to a few *** PCR test is expensive,although the government may bear expenses in certain ***,subsets of the population resist invasive testing like ***,chest X-rays or Computerized Vomography(CT)scans are preferred in most cases,and more importantly,they are non-invasive,inexpensive,and provide a faster response *** advances in Artificial Intelligence(AI),in combination with state-of-the-art methods,have allowed for the diagnosis of COVID-19 using chest *** article proposes a method for classifying COVID-19 as positive or negative on a decentralized dataset that is based on the Federated learning *** order to build a progressive global COVID-19 classification model,two edge devices are employed to train the model on their respective localized dataset,and a 3-layered custom Convolutional Neural Network(CNN)model is used in the process of training the model,which can be deployed from the *** two edge devices then communicate their learned parameter and weight to the server,where it aggregates and updates the *** proposed model is trained using an image dataset that can be found on *** are more than 13,000 X-ray images in Kaggle Database collection,from that collection 9000 images of Normal and COVID-19 positive images are *** edge node possesses a different number of images;edge node 1 has 3200 images,while edge node 2 has *** is no association between the datasets of the various nodes that are included in the *** doing it in this manner,each of the nodes will have access to a separate image collection that has no correl

关键词： Artificial intelligence deep learning federated learning COVID-19 decentralized image dataset

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