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Advancements on metal oxide semiconductor photocatalysts in photo-electrochemical conversion of carbon dioxide into fuels and other useful products

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Frontiers in Energy 2024年第2期18卷 187-205页

作者： jai PRAKASH Zhangsen CHEN Shakshi SAINI Gaixia ZHANG Shuhui SUN Department of Chemistry National Institute of Technology HamirpurHamirpur 177005India Institut National de la Recherche Scientifique(INRS) Centre Énergie Matériaux TélécommunicationsVarennes J3X 1P7Canada Department of Chemistry Indian Institute of Technology MandiHimachal PradeshIndia Department of Electrical Engineering École de Technologie SupérieureMontréal H3C 1K3Canada

Due to its fascinating and tunable optoelectronic properties,semiconductor nanomaterials are the best choices for multidisciplinary ***,the use of semiconductor photocatalysts is one of the promising ways to harness solar energy for useful applications in the field of energy and *** recent years,metal oxide-based tailored semiconductor photocatalysts have extensively been used for photocatalytic conversion of carbon dioxide(CO_(2))into fuels and other useful products utilizing solar *** is very significant not only from renewable energy consumption but also from reducing global warming point of *** current research activities are promising for a better future of *** present mini-review is focused on recent developments(2–3 years)in metal oxide semiconductor hybrid photocatalysts-based photo-electrochemical conversion of CO_(2)into fuels and other useful ***,general mechanism of photo-electrochemical conversion of CO_(2)into fuels or other useful products has been ***,various metal oxide-based emerging hybrid photocatalysts including tailoring of their morphological,compositional,and optoelectronic properties have been discussed with emphasis on their role in enhancing photoelectrochemical ***,mechanism of their photo-electrochemical reactions and applications in CO_(2)conversion into fuels/other useful products have been ***,challenges and future prospects have been discussed followed by a summary.

关键词： metal-oxide semiconductors nanohybrid photocatalysts photo-electrochemical CO_(2)conversion tailoring morphology fuels challenges and future prospects

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Proposition and design of a new Micro-Architected Domes family:A biomimicry-based approach

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Frontiers of Architectural Research 2024年第3期13卷 650-667页

作者： Nadir Rihani Iatimad Akhrif Mostapha El jai Euromed Polytechnic School Euromed Center of ResearchEuromed University of FesFesMorocco Mechanic Mechatronic and Command LaboratoryENSAM-MeknesMoulay Ismail UniversityMeknesMorocco

In the last decade,micro-architected structures have gained significant attention in academia and industry for their lightweight,strong,and thermally efficient *** by biomimicry design,this paper presents a novel ribbed family of additively manufactured Micro-Architected Domes(MAD).The design incorporates tetrapod pyramid unit cells,golden ratio-based fractal patterns,Schoen’s Minimal Gyroid,and spherical *** study focuses on dome radius,height,and azimuth/elevation partitioning as input variables,with the main output being ribbed micro-cell *** relationships between unit-cells’diameter and input variables were established through problem-solving and numerical computations:linear dependency with the dome radius and hyperbolic dependency with the azimuth and elevation *** proposed design successfully adhered to the Surface-to-Volume ratio of Schoen’s Minimal Gyroid,achieving an average volume relative density of 2.5%,confirming its lightweight *** feasibility of the design was further supported by fabricating three specimens using Filament Fused *** research showcases the potential of biomimicry-inspired micro-architected structures,paving the way for innovative applications in various fields.

关键词： Micro-architected structures Domes Biomimicry Mathematical design Optimization Fractal decomposition

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Tidal effects based on a GUP-induced effective metric

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Communications in Theoretical Physics 2024年第9期76卷 65-74页

作者： Soon-Tae Hong Yong-Wan Kim Young-jai Park Center for Quantum Spacetime and Department of Physics Sogang University Department of Physics and Research Institute of Physics and Chemistry Jeonbuk National University Department of Physics Sogang University

In this paper, we study tidal forces in the Schwarzschild black hole, whose metric explicitly includes a generalized uncertainty principle(GUP) effect. We also investigate interesting features of the geodesic equations and tidal effects that are dependent on the GUP parameter αrelated to a minimum length. Then, by solving the geodesic deviation equations explicitly with appropriate boundary conditions, we show that α in the effective metric affects both the radial and angular components of the geodesic equation, particularly near the singularities.

关键词： effective metric generalized uncertainty principle geodesic deviation equation

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Tubularized incised plateurethroplasty and grafted tubularized incised plate urethroplasty: systematic review, metaanalysis and trial sequential analysis

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World Journal of Pediatric Surgery 2024年第1期7卷 10-19页

作者： Nitinkumar Borkar Charu Tiwari Abhijit Nair Debajyoti Mohanty C K Sinha jai Kumar Mahajan Paediatric Surgery All India Institute of Medical Sciences-RaipurRaipurChhattisgardhIndia Department of Anaesthesiology Ibra HospitalbraOman General Surgery All India Institute of Medical Sciences-RaipurRaipurChhattisgardhIndia Paediatric Surgery St George's University Hospitals NHS Foundation TrustLondonUK Pediatric Surgery PGIMERChandigarhIndia

Background Hypospadias is one of the most common genital birth *** are around 300 various techniques available for the repair of *** study aims to compare the reported outcomes of Tubularized incised plate urethroplasty(TIP)and Grafted TIP(GTIP)repair in children undergoing primary *** This meta-analysisadhered to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines,and we framed our research question using the population,intervention,control and outcomes *** conducted comprehensive electronic searches across various databases,employing a Boolean search strategy with predefined search *** randomized controlled trials(RCTs)were included for quantitative *** Totally,10 RCTs met our inclusion criteria for quantitative *** results indicated that urethrocutaneous fistula,glans dehiscence,and stricture rates were comparable between the two *** incidence of meatal stenosis was found to be significantly lower in the GTIP group with a relative risk(RR)of 0.32(95%confidence interval(Cl)0.15 to 0.67).Conclusion The coucomes UCF,glans dehiscence,and stricture rates were comparable between the two ***,the incidence of meatal stenosis was found to be significantly lower in the grafted TIP *** terms of operative time,our quantitative synthesis demonstrated that the TIP group had a shorter operative time than the GTIP group with significant heterogeneity.

关键词： plate grafted analysis

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Vonoprazan 10 mg or 20 mg *** 15 mg as maintenance therapy in Asian patients with healed erosive esophagitis:A randomized controlled trial

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Chinese Medical Journal 2024年第8期137卷 962-971页

作者： Yinglian Xiao Jiaming Qian Shutian Zhang Ning Dai Hoon jai Chun Chengtang Chiu Chui Fung Chong Nobuo Funao Yuuichi Sakurai Jessica D.Eisner Li Xie Minhu Chen Department of Gastroenterology The First Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong 510062China Department of Gastroenterology Peking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijing 100006China Department of Gastroenterology Beijing Friendship HospitalCapital Medical UniversityBeijing 100050China Department of Gastroenterology Sir Run Run Shaw HospitalSchool of Medicine Zhejiang UniversityHangzhouZhejiang 310020China Department of Internal Medicine Korea University Anam HospitalKorea University College of Medicine73 Goryeodae-roSeongbuk-guSeoul 02841Republic of Korea Department of Gastroenterology&Hepatology Linkou Medical CenterChang Gung Memorial HospitalTaoyuanTaiwan 33353China College of Medicine Chang Gung UniversityTaoyuanTaiwan 33353China Takeda Development Center Asia Singapore 018981Singapore Takeda Pharmaceutical Company Chuo-kuOsaka 540-8645Japan Takeda Pharmaceuticals International Company CambridgeMA02142 USA China Medical Team Takeda ChinaBeijing 100027China Hoffmann-La Roche Basel4070 Switzerland Abbott Laboratories Lake ForestIL 60045USA

Background:Erosive esophagitis(EE)is a gastroesophageal reflux disease characterized by mucosal breaks in the *** pump inhibitors are widely used as maintenance therapy for EE,but many patients still *** this trial,we evaluated the noninferiority of vonoprazan *** as maintenance therapy in patients with healed ***:We performed a double-blind,double-dummy,multicenter,phase 3 clinical trial among non-Japanese Asian adults with endoscopically confirmed healed EE from April 2015 to February *** from China,South Korea,and Malaysia were randomized to vonoprazan 10 mg or 20 mg once daily or lansoprazole 15 mg once daily for 24 *** primary endpoint was endoscopically confirmed EE recurrence rate over 24 weeks with a noninferiority margin of 10%using a two-sided 95%confidence interval(CI).Treatment-emergent adverse events(TEAEs)were ***:Among 703 patients,EE recurrence was observed in 24/181(13.3%)and 21/171(12.3%)patients receiving vonoprazan 10 mg or 20 mg,respectively,and 47/184(25.5%)patients receiving lansoprazole(differences:-12.3%[95%CI,-20.3%to-4.3%]and-13.3%[95%CI,-21.3%to-5.3%],respectively),meeting the primary endpoint of noninferiority to lansoprazole in preventing EE recurrence at 24 *** of superiority(upper bound of 95%CI<0%)was also *** 12 weeks,endoscopically confirmed EE recurrence was observed in 5/18,2/20,and 7/20 of patients receiving vonoprazan 10 mg,vonoprazan 20 mg,and lansoprazole,*** were experienced by 66.8%(157/235),69.0%(156/226),and 65.3%(158/242)of patients receiving vonoprazan 10 mg,vonoprazan 20 mg,and lansoprazole,*** most common TEAE was upper respiratory tract infection in 12.8%(30/235)and 12.8%(29/226)patients in vonoprazan 10 mg and 20 mg groups,respectively and 8.7%(21/242)patients in lansoprazole ***:Vonoprazan maintenance therapy was well-tolerated and noninferior to lansoprazole for preventing EE recurrence i

关键词： Erosive esophagitis Lansoprazole Maintenance therapy Potassium-competitive acid blockers Vonoprazan

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Effect of Moringa oleifera on semen quality profiles in endangered Teressa goat under tropical humid island ecosystem

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Asian pacific Journal of Reproduction 2024年第2期13卷 89-96页

作者： P.Perumal jai Sunder A.K.De A.K.Nahak D.K.Chaurasia T.C.Balamurugan D.Bhattacharya ICAR-Central Island Agricultural Research Institute Port Blair-744105Andaman and Nicobar IslandsIndia OUAT-College of Veterinary Science and Animal Husbandry Bhubaneswar-751003OdishaIndia TANUVAS-Veterinary College and Research Institute Salem-636112Tamil NaduIndia

Objective:To investigate the effect of Moringa oleifera leaf extract on semen quality parameters in Teressa goat ***:A total of 25 semen samples from six bucks were selected for the *** of 150×10^(6) were incubated in 0,300,500 and 700μg of leaf extract as groupⅠ,Ⅱ,Ⅲ and Ⅳ,*** stored semen samples were analysed for motility,viability,total sperm abnormalities,plasma membrane,acrosomal and nuclear integrities,seminal plasma intracellular enzymes[aspartate aminotransferase(AST),alanine aminotransferase(ALT)and lactate dehydrogenase(LDH)]and total antioxidant capacity(TAC)and spermatozoa malondialdehyde(MDA)and cholesterol efflux in comparison with the control group(groupⅠ)for up to 72 ***:Moringa oleifera leaf extract(500μg/150×10^(6) spermatozoa)-treated semen had significantly higher motility,viability,plasma membrane,acrosomal and nuclear integrities,and TAC(P<0.05),and had significantly lower total sperm abnormalities,AST,ALT,LDH,MDA production and cholesterol efflux compared to those in other Moringa oleifera leaf extract treated(300 or 700μg/150×10^(6) spermatozoa)and control groups at different hours of liquid storage(P<0.05).Semen quality parameters and TAC showed an increasing trend and total sperm abnormalities,MDA production,leakage of intra-cellular enzymes and cholesterol efflux showed a decreasing trend from group Ⅰto group Ⅲand then an opposite trend from group Ⅲ to group Ⅳ at different hours of liquid ***:Moringa oleifera leaf extract 500μg/150×10^(6) spermatozoa can be used for liquid semen preservation in Teressa goat at Andaman and Nicobar Islands.

关键词： Moringa oleifera Semen Teressa goat Andaman and Nicobar Islands

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A probabilistic model of quantum states for classical data security

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Frontiers of physics 2023年第5期18卷 281-292页

作者： Muhammad Waseem Hafiz Seong oun Hwang Department of IT Convergence Engineering Gachon UniversitySeongnam 13120South Korea Department of Computer Engineering Gachon UniversitySeongnam 13120South Korea

The phenomenal progress of quantum information theory over the last decade has substantially broadened the potential to simulate the superposition of states for exponential speedup of quantum algorithms over their classical ***,the conventional and modern cryptographic standards(encryption and authentication)are susceptible to Shor’s and Grover’s algorithms on quantum *** significant improvement in technology permits consummate levels of data protection by encoding classical data into small quantum states that can only be utilized once by leveraging the capabilities of quantum-assisted classical *** the frequent data breaches and increasingly stringent privacy legislation,we introduce a hybrid quantum-classical model to transform classical data into unclonable states,and we experimentally demonstrate perfect state transfer to exemplify the classical *** alleviate implementation complexity,we propose an arbitrary quantum signature scheme that does not require the establishment of entangled states to authenticate users in order to transmit and receive arbitrated states to retrieve classical *** consequences of the probabilistic model indicate that the quantum-assisted classical framework substantially enhances the performance and security of digital data,and paves the way toward real-world applications.

关键词： information security quantum-classical cryptography quantum information processing quantum spin states spin-1/2 algebra user authentication

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Automated Service Search Model for the Social Internet of Things

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Computers, Materials & Continua 2022年第9期72卷 5871-5888页

作者： Farhan Amin Seong oun Hwang Department of Computer Engineering Gachon UniversitySeongnam13120Korea

The social internet of things(SIoT)is one of the emerging paradigms that was proposed to solve the problems of network service discovery,navigability,and service *** SIoT aims to socialize the IoT devices and shape the interconnection between them into social interaction just like human *** IoT,an object can offer multiple services and different objects can offer the same services with different parameters and interest *** proliferation of offered services led to difficulties during service customization and service *** problem is known as service *** selection of suitable service that fits the requirements of applications and objects is a challenging *** address these issues,we propose an efficient automated query-based service search model based on the local network navigability concept for the *** the proposed model,objects can use information from their friends or friends of their friends while searching for the desired services,rather than exploring a global *** employ a centrality metric that computes the degree of importance for each object in the social IoT that helps in selecting neighboring objects with high centrality *** distributed nature of our navigation model results in high scalability and short navigation *** verified the efficacy of our model on a real-world SIoT-related *** experimental results confirm the validity of our model in terms of scalability,navigability,and the desired objects that provide services are determined quickly via the shortest path,which in return improves the service search process in the SIoT.

关键词： Social internet of things service discovery local navigability object discovery query generation model

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An Enhanced Privacy Preserving, Secure and Efficient Authentication Protocol for VANET

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Computers, Materials & Continua 2022年第5期71卷 3703-3719页

作者： Safiullah Khan Ali Raza Seong oun Hwang Department of IT Convergence Engineering Gachon UniversitySeongnam13320Korea ENSAIT GEMTEX-Laboratoire de Genie et Materiaux TextilesUniversity of LilleLilleF59000France School of Computing&Institute of Cyber Security(ICSS) University of KentUnited Kingdom Department of Computer Engineering Gachon UniversitySeongnam13320Korea

Vehicular ad hoc networks (VANETs) have attracted growing interest in both academia and industry because they can provide a viable solutionthat improves road safety and comfort for travelers on roads. However, wireless communications over open-access environments face many security andprivacy issues that may affect deployment of large-scale VANETs. Researchershave proposed different protocols to address security and privacy issues in aVANET, and in this study we cryptanalyze some of the privacy preservingprotocols to show that all existing protocols are vulnerable to the Sybilattack. The Sybil attack can be used by malicious actors to create fakeidentities that impair existing protocols, which allows them to imitate trafficcongestion or at worse cause an accident that may result in the loss of humanlife. This vulnerability exists because those protocols store vehicle identitiesin an encrypted form, and it is not possible to search over the encryptedidentities to find fake vehicles. This attack is serious in nature and veryprevalent for privacy-preserving protocols. To cope with this kind of attack,we propose a novel and practical protocol that uses Public key encryptionwith an equality test (PKEET) to search over the encrypted identities withoutleaking any information, and eventually eliminate the Sybil attack. Theproposed approach improves security and at the same time maintains privacyin VANET. Our performance analysis indicates that the proposed protocoloutperforms state-of-the-art protocols: The proposed beacon generation timeis constant compared to a linear increase in existing protocols, with beaconverification shown to be faster by 7.908%. Our communicational analysisshows that the proposed protocol with a beacon size of 322 bytes has the leastcommunicational overhead compared to other state-of-the-art protocols.

关键词： VANET authentication protocol cryptanalysis privacy preserving intelligent systems

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A Deep Learning Approach for Detecting Covid-19 Using the Chest X-Ray Images

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Computers, Materials & Continua 2023年第1期74卷 751-768页

作者： Fatemeh Sadeghi Omid Rostami Myung-Kyu Yi Seong oun Hwang Department of Industrial Engineering Sharif University of TechnologyTehran14588-89694Iran Department of Industrial Engineering University of HoustonHoustonTX77204USA Department of Computer Engineering Gachon UniversitySeongnam13120Korea

Real-time detection of Covid-19 has definitely been the most widely-used world-wide classification problem since the start of the pandemic from 2020 until *** the meantime,airspace opacities spreads related to lung have been of the most challenging problems in this area.A common approach to do on that score has been using chest X-ray images to better diagnose positive Covid-19 *** to most other classification problems,machine learning-based approaches have been the first/most-used candidates in this *** schemes based on machine/deep learning have been proposed in recent years though increasing the performance and accuracy of the system has still remained an open *** this paper,we develop a novel deep learning architecture to better classify the Covid-19 X-ray *** do so,we first propose a novel multi-habitat migration artificial bee colony(MHMABC)algorithm to improve the exploitation/exploration of artificial bee colony(ABC)*** that,we optimally train the fully connected by using the proposed MHMABC algorithm to obtain better accuracy and convergence rate while reducing the execution *** experiment results on Covid-19 X-ray image dataset show that the proposed deep architecture has a great performance in different important optimization ***,it will be shown that the MHMABC algorithm outperforms the state-of-the-art algorithms by evaluating its performance using some wellknown benchmark datasets.

关键词： ChestX-ray image processing evolutionary deep learning covid-19

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