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Arc plasma-deposited Co single-atom catalysts supported on an aligned carbon nanofiber for hydrogen peroxide electrosynthesis and an electro-Fenton process

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Carbon Energy 2024年第11期6卷 234-255页

作者： Chang‐Kyu Hwang Sooyeon Kim Ki ro Yoon Thao Thi Le Chinh V.Hoang Jae Won Choi Wenjun Zhang Sae Yane Paek Chung Hyeon Lee Ji Hyun Lee Keun Hwa Chae Sohee Jeong Seung Yong Lee Byeong-Kwon Ju Sang Hoon Kim Sang Soo Han Jong Min Kim Materials Architecturing Research Center Korea Institute of Science and Technology (KIST))seculSecrngbuk-guRepublic of Korea Department of Micro/Nano Systems Korea UniversitySeoulSeongbuk-guRepublic of Korea Computational Science Research Center Korea Institute of Science and Technology (KIST)SeculSecrngbuk-guRepublic of Korea Advanced Textile R&D Department Korea Institute of Industrial Technology (KITECH)AmsanGyeonggi-doRepublic of Korea Extreme Materials Research Center Korea Institute of Science and Technology (KIST)SeoulSeongbuk:guRepubic of Korea Nanoscience and Technology KIST School University of Science and TechnologySeoulRepublic of Korea Advanced Analysis and Data Center Korea Institute of Science and TechnologySeoulSeongbuk-guRepublic of Korea Display and Nanosensor Laboratory School of Electrical Engineering Korea UniversitySeoulSeongbuk guRepublic of Korea KHU-KIST Department of Converging Science and Technology Kyung Hee UniversitySeoulSeongbuk-guRepubic of Korea

Atomically dispersed single-atom catalysts(SACs)on carbon supports show great promise for H_(2)O_(2) electrosynthesis,but conventional wet chemistry methods using particulate carbon blacks in powder form have limited their potential as two-electron(2^(e−))oxygen reduction reaction(Orr)***,we demonstrate high-performance Co SACs supported on a free-standing aligned carbon nanofiber(CNF)using electrospinning and arc plasma deposition(APd).Based on the surface oxidation treatment of aligned CNF and precise control of the deposition amount in a dry-based APd process,we successfully form densely populated Co SACs on aligned *** experimental analyses and density functional theory calculations,we reveal that Co SAC has a Co–N_(2)–O_(2) moiety with one epoxy group,leading to excellent 2^(e−)Orr ***,the aligned CNF significantly improves mass transfer in flow cells compared to randomly oriented CNF,showing an overpotential reduction of 30 mV and a 1.3-fold improvement(84.5%)in Faradaic efficiency,and finally achieves an outstanding production rate of 15.75 mol gcat^(−1) h^(−1) at 300 mA cm^(−2).The high-performance Co SAC supported on well-aligned CNF is also applied in an electro-Fenton process,demonstrating rapid removal of methylene blue and bisphenol F due to its exceptional 2e^(−)Orr activity.

关键词： arc plasma deposition electro-Fenton flow reactor hydrogen peroxide production oxygen reduction reaction single-atom catalysts

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Ce and Se co-doped MBG/SA/HLC microgel bone powder for repairing tumor bone defects

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Nano research 2023年第1期16卷 746-756页

作者： Miaolin Fan Wan Liu Cuiying Fan Xiaoyan Zheng Junfeng Hui Chaoquan Hu daidi Fan Shaanxi Key Laboratory of Degradable Biomedical Materials Shaanxi R&D Center of Biomaterials and Fermentation EngineeringSchool of Chemical EngineeringNorthwest UniversityXi’an 710069China Biotech.&Biomed.Research Institute Northwest UniversityXi’an 710069China Xi’an Giant Biogene Technology Co. Ltd.Xi’an 710069China Nanjing IPE Institute of Green Manufacturing Industry Nanjing 211100China

The repair and treatment of tumor bone defects is a difficult problem to solve urgently in clinical *** tumor resection,patients are not only faced with a large area of bone defect,but also may have the risk of tumor recurrence,which can easily cause huge physical and mental harm to *** this study,we successfully designed and constructed an organic/inorganic composite microgel bone powder(S-H-M3%Ce/3%Se)based on cerium(Ce)and selenium(Se)elements co-doped mesoporous bioactive glass(M3%Ce/3%Se),sodium alginate(SA),and recombinant human-like collagen(HLC).The obtained S-H-M3%Ce/3%Se could inhibit the growth of osteoma cells and promote the growth of normal cells,and effectively promote the repair of defect *** integration of the“treatment and repair”organic/inorganic composite microgel bone powder provided a new strategy for the treatment of cancerous bone defects.

关键词： mesoporous bioactive glass functional elements osteoma inhibition bone repair

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Numerical simulation on synchronization of pulse-timing for passively Q-switched microchip lasers

Numerical simulation on synchronization of pulse-timing for ...

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2024 Conference on Lasers and Electro-Optics/Pacific rim, CLEO-Pr 2024

作者： Hamilton, rhona Hirosawa, Kenichi Ohata, Nobuo Set, Sze Yun Yamashita, Shinji The University of Tokyo Dept. Electrical Engineering 7-3-1 Bunkyo Tokyo113-8656 Japan Mitsubishi Electric Corporation Information Technology R&D Center 5-1-1 Ofuna Kamakura247-8501 Japan

Pump fluctuations cause delay in pulses emitted from arrayed Q-switched microchip lasers. The synchronisation of pulses through a variable degree of coupling was simulated. Coupling 0.5% of photons reduced delay by tw... 详细信息

关键词： Q switching

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Enhanced Load Frequency Control Using PSO-Tuned PId Controller in Two-Area Interconnected Power Systems

Enhanced Load Frequency Control Using PSO-Tuned PID Controll...

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10th International Conference on engineering and Emerging Technologies, ICEET 2024

作者： Ali, Syed Mustafa Khan, Amjad Ullah, Kaleem Hussain, Tanveer Aziz, Muhammad Osama Basit, Abdul University of Alabama at Birmingham Department of Engineering Management AL35294 United States University of Engineering and Technology Department of Electrical Engineering Peshawar Pakistan University of Engineering and Technology Department of Energy System Engineering Peshawar Pakistan Dominion Energy Systems Operations Center Virginia United States University of Engineering and Technology Buildings Energy Research Center Peshawar Pakistan Npcc Ntdc Manager R&d Islamabad Pakistan

ISBN: (纸本)9798331532895

LFC is significant in controlling stability within interconnected power systems, and many techniques are available in the literature for this process. This paper proposes an application of PSO for tuning PId controllers to improve LFC in two areas of thermal power systems. Both areas are interfaced with PSO-tuned PId controllers, and the tuning parameters are optimized using PSO to enhance response characteristics. The newly derived method is compared to the traditional Ziegler-Nichols tuning method for validation. The simulation results present that the proposed method of tuning the PId controllers with the help of the PSO algorithm provides better control with minimized settling time and number of oscillations, thereby validating the method. All the simulations are carried out in MATLAB/SIMULINK and offer a general system to assess the effectiveness of the controller in the multi-area power system. © 2024 IEEE.

关键词： Particle swarm optimization (PSO)

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Breast Calcifications and Histopathological Analysis on Tumour detection by CNN

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Computer Systems Science & engineering 2023年第1期44卷 595-612页

作者： d.Banumathy Osamah Ibrahim Khalaf Carlos Andrés Tavera romero P.Vishnu raja dilip Kumar Sharma Department of Computer Science and Engineering Paavai Engineering CollegePachalNamakkal637018Tamil NaduIndia Al-Nahrain University Al-Nahrain Nanorenewable Energy Research CenterBaghdadIraq COMBA R&D Laboratory Faculty of EngineeringUniversidad Santiago de Cali76001CaliColombia Department of Computer Science and Engineering Kongu Engineering CollegePerundurai638060Tamil NaduIndia Department of Mathematics Jaypee University of Engineering and TechnologyGuna473226Madhya PradeshIndia

The most salient argument that needs to be addressed universally is Early Breast Cancer detection(EBCd),which helps people live longer *** Computer-Aided detection(CAds)/Computer-Aided diagnosis(CAdx)sys-tem is indeed a software automation tool developed to assist the health profes-sions in Breast Cancer detection and diagnosis(BCdd)and minimise mortality by the use of medical histopathological image classification in much less *** paper purposes of examining the accuracy of the Convolutional Neural Network(CNN),which can be used to perceive breast malignancies for initial breast cancer detection to determine which strategy is efficient for the early iden-tification of breast cell malignancies formation of masses and Breast microcalci-fications on the *** we have insufficient data for a new domain that is desired to be handled by a pre-trained Convolutional Neural Network of residual Network(resNet50)for Breast Cancer detection and diagnosis,to obtain the discriminative Localization,Convolutional Neural Network with Class Activation Map(CAM)has also been used to perform breast microcalcifications detection tofind a specific class in the Histopathological *** test results indicate that this method performed almost 225.15%better at determining the exact location of disease(discriminative Localization)through breast microcalci-fications ***50 seems to have the highest level of accuracy for images of Benign Tumour(BT)/Malignant Tumour(MT)cases at 97.11%.resNet50’s average accuracy for pre-trained Convolutional Neural Network is 94.17%.

关键词： Computer-Aided detection breast cancer detection convolutional neural network class activation map computer-aided diagnosis

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Capabilities and incapabilities of unity power factor control algorithm for dSTATCOM under abnormal grid and load conditions

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International Journal of Power Electronics 2022年第1期15卷 55-85页

作者： rohilla, Yogesh Kumar, dinesh rajpurohit, Bharat Singh EEE Department Institute of Engineering and Technology JK Lakshmipat University Jaipur India Global R&D Center Department of EMC and Harmonics Danfoss Drives A/S Grasten6300 Denmark Mandi Himachal Pradesh India

distribution static compensator (dSTATCOM) is an efficient custom power device to enhance the power quality of distribution network. To operate the dSTATCOM, a control strategy is a must and the unity power factor (UPF) is one such control strategy, which is used in dSTATCOM applications. The UPF algorithm has been developed in such a way that it operates as the reference supply current generator for dSTATCOM. To ensure the effective operation of dSTATCOM, it is important to analyse the performance of selected control algorithm at different disturbances either coming from source side or load side. A three-phase four-wire distribution system is considered for this study and the performance of UPF-based dSTATCOM system has been analysed for different disturbances such as unbalanced and harmonic distortion coming from source and load side. Exhaustive analysis is provided using the simulation tools (MATLAB/Simulink) to show the capabilities and incapabilities of UPF control algorithm under such disturbances. Each case is analysed thoroughly keeping the view of reactive power requirement, load balancing, total harmonic distortion levels as per IEEE-519 standard and power factor improvement. Copyright © 2022 Inderscience Enterprises Ltd.

关键词： Harmonic distortion

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Prediction of indoor radio propagation using deep neural network

Prediction of indoor radio propagation using deep neural net...

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2023 IEEE International Symposium on Antennas and Propagation and USNC-UrSI radio Science Meeting, AP-S/UrSI 2023

作者： Nakanishi, Takayuki Shimizu, Kenya Hitomi, Kenzaburo Nishioka, Yasuhiro Inasawa, Yoshio Mitsubishi Electric Corparation Information Technology R&d Center Kanagawa Kamakura-shi247-8501 Japan Mitsubishi Electric Engineering Company Limited Kanagawa Kamakura-shi247-0065 Japan

ISBN: (纸本)9781665442282

radio propagation prediction is important for improving the stability and reliability of wireless communication systems. However, propagation loss prediction models by multiple regression based on measured data have problems in setting appropriate parameters and function types. This paper evaluates a radio propagation model that applies machine learning for indoor environments. The proposed neural network has the input parameters of the environmental characteristics such as floor area, ceiling height, and materials, and a dropout layer that disables the network units randomly is inserted to improve generalization performance. The rMSE (root mean squared error) by the proposed model is less than 5 dB for both training and test data and the proposed model can predict the indoor propagation more accurately than conventional models. © 2023 IEEE.

关键词： deep neural networks

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Improvement of glucose metabolism in middle-aged mice on a high-fat diet by whole-grain highland barley is related to low methionine levels

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Food Science and Human Wellness 2024年第5期13卷 2906-2916页

作者： Chuanxing Feng Yueting Ge Bowen Li Xiangrong Cheng Xue Tang Jianjin Zhu Yuge Jiang Yonghui Shi Guowei Le Center for Food Nutrition and Functional Food Engineering School of Food Science and TechnologyJiangnan UniversityWuxi 214122China State Key Laboratory of Food Science and Technology Jiangnan UniversityWuxi 214122China College of Life Science xinyang Normal Universityxinyang 464000China Key Laboratory of xin'an Medicine Ministry of EducationAnhui Province Key Laboratory of R&D of Chinese MedicineAnhui University of Chinese MedicineHefei 230038China

Methionine restriction(Mr)is an effective dietary strategy to regulate energy metabolism and alleviate oxidative stress and inflammation in the body,especially in the middle-aged and elderly ***,the high methionine content of meat products makes this dietary strategy impossible to combine with protein supplementation and *** barley(HB),a low-methionine cereal,not only provides the body with protein but also has improved glucose metabolism and antioxidant and anti-inflammatory ***,this study evaluated the feasibility of HB as a source of methionine-restricted dietary protein and the potential ***-aged C57BL/6J mice were fed a control diet(CON),a high-fat diet(HFd),a whole-grain HB high-fat diet(HBHF),or a HBHF+methionine diet(HBHFmet)for 25 *** results showed that the HBHF could keep the body weight,fasting glucose,insulin,homeostasis model assessment of insulin resistance(HOMA-Ir),blood lipids,inflammation,and oxidative stress of HFd mice at normal *** with the HFd groups,HBHF inhibited pancreatic cell apoptosis and improved insulin secretion while improving hepatic and skeletal muscle glucose ***,these efficacies were attenuated in HBHFmet group *** findings suggest that HBHF has an Mr strategy.

关键词： Methionine restriction strategy Highland barley Insulin secretion Glucose metabolism

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Selenium-enriched Cardamine violifolia protects against sepsis-induced intestinal injury by regulating mitochondrial fusion in weaned pigs

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Science China(Life Sciences) 2023年第9期66卷 2099-2111页

作者： dan Wang Yanling Kuang Qingqing Lv Wenshuai Xie Xiao Xu Huiling Zhu Yue Zhang Xin Cong Shuiyuan Cheng Yulan Liu Hubei Key Laboratory of Animal Nutrition and Feed Science Wuhan Polytechnic UniversityWuhan 430023China Enshi Se-Run Material Engineering Technology Co. Ltd.Enshi 445000China National R&D Center for Se-rich Agricultural Products Processing School of Modern Industry for Selenium Science and EngineeringWuhan Polytechnic UniversityWuhan 430023China

Sepsis is a life-threatening organ dysfunction caused by the dysregulated response of the host to an infection, and treatments are limited. recently, a novel selenium source, selenium-enriched Cardamine violifolia(SEC) has attracted much attention due to its anti-inflammatory and antioxidant properties, but little is known about its role in the treatment of sepsis. Here, we found that SEC alleviated LPS-induced intestinal damage, as indicated by improved intestinal morphology, and increased disaccharidase activity and tight junction protein expression. Moreover, SEC ameliorated the LPS-induced release of pro-inflammatory cytokines, as indicated by decreased IL-6 level in the plasma and jejunum. Moreover, SEC improved intestinal antioxidant functions by regulating oxidative stress indicators and selenoproteins. In vitro, TNF-α-challenged IPEC-1 cells were examined and showed that selenium-enriched peptides, which are the main functional components extracted from Cardamine violifolia(CSP), increased cell viability, decreased lactate dehydrogenase activity and improved cell barrier function. Mechanistically, SEC ameliorated LPS/TNF-α-induced perturbations in mitochondrial dynamics in the jejunum and IPEC-1 cells. Moreover, CSPmediated cell barrier function is primarily dependent on the mitochondrial fusion protein MFN2 but not MFN1. Taken together,these results indicate that SEC mitigates sepsis-induced intestinal injury, which is associated with modulating mitochondrial fusion.

关键词： intestine MFN2 mitochondrial fusion piglets selenium sepsis

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Effect of Size-controlled Low-Melting-Point-Alloy Particle-Incorporated on the reliability of Transient Liquid Phase Epoxy Composite Conductive Adhesive 26

Effect of Size-controlled Low-Melting-Point-Alloy Particle-I...

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26th Electronics Packaging technology Conference, EPTC 2024

作者： Liang, Chen Yang, Mingkun Wang, Zhiteng Wan, Cheng Xu, Shimeng Xie, Xiaochen Lin, Pengrong Qu, Zhibo Wang, Yong Zhao, Xiuchen Huo, Yongjun Zhang, Gang School of Materials Science and Engineering Beijing Institute of Technology Beijing China Yangtze River Delta Graduate School of Beijing Institute of Technology Zhejiang Province Jiaxing China School of Integrated Circuit Tsinghua University Beijing China Package R&D Center Beijing Microelectronics Technology Institute Beijing China

ISBN: (纸本)9798331522001

The effect of size-controlled Low-Melting-Point-Alloy (LMPA) particles on the reliability of transient liquid phase epoxy conductive adhesive (TLP-ECA) is discussed. The effects of LMPA particles on resistivity and shear strength were evaluated by high temperature aging (120℃, 1000 h) and high temperature and humidity (85℃, 85%rH, 1000 h) tests. Compared with the traditional Ag-ECA, the resistance of TLP-ECA decreases after high temperature aging, and the shear strength decreases with time, but the overall reliability is better. SEM and TEM analysis revealed that LMPA particles formed a metallurgical bridge with Ag sheets during the curing process, which inhibited crack formation and extension, and increases the contact area with the substrate. This ultimately improves the mechanical integrity, resulting in better electrical, mechanical and thermal stability of TLP-ECA. © 2024 IEEE.

关键词： Shear strength

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