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A New Encryption Mechanism Supporting the Update of Encrypted Data for Secure and Efficient Collaboration in the Cloud Environment

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 813-834页

作者： Chanhyeong cho Byeori Kim Haehyun cho Taek-Young Youn Department of Cyber Security Dankook UniversityYongin16890Republic of Korea Department of Software Soongsil UniversitySeoul07027Republic of Korea

With the rise of remote collaboration,the demand for advanced storage and collaboration tools has rapidly ***,traditional collaboration tools primarily rely on access control,leaving data stored on cloud servers vulnerable due to insufficient *** paper introduces a novel mechanism that encrypts data in‘bundle’units,designed to meet the dual requirements of efficiency and security for frequently updated collaborative *** bundle includes updated information,allowing only the updated portions to be reencrypted when changes *** encryption method proposed in this paper addresses the inefficiencies of traditional encryption modes,such as Cipher Block Chaining(CBC)and Counter(CTR),which require decrypting and re-encrypting the entire dataset whenever updates *** proposed method leverages update-specific information embedded within data bundles and metadata that maps the relationship between these bundles and the plaintext *** utilizing this information,the method accurately identifies the modified portions and applies algorithms to selectively re-encrypt only those *** approach significantly enhances the efficiency of data updates while maintaining high performance,particularly in large-scale data *** validate this approach,we conducted experiments measuring execution time as both the size of the modified data and the total dataset size *** show that the proposed method significantly outperforms CBC and CTR modes in execution speed,with greater performance gains as data size ***,our security evaluation confirms that this method provides robust protection against both passive and active attacks.

关键词： Cloud collaboration mode of operation data update efficiency

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一种检测猪生殖——呼吸道综合征的ELISA抗原的制备

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国外兽医学（畜禽传染病） 1997年第1期17卷 29-32页

作者： cho.,hj 赵增连

利用ＴｒｉｔｏｎＸ－１００助溶，由猪生殖－－呼吸道综合征病毒（ＰＲＲＳＶ）感染的ＭＡＲＣ－１４５细胞可制备出高纯度的ＥＬＩＳＡ抗原。这一技术消除了涉及到ＰＲＲＳＶ抗的及细胞抗在的常见本底反应。将这种高质量抗原应用到检... 详细信息

利用ＴｒｉｔｏｎＸ－１００助溶，由猪生殖－－呼吸道综合征病毒（ＰＲＲＳＶ）感染的ＭＡＲＣ－１４５细胞可制备出高纯度的ＥＬＩＳＡ抗原。这一技术消除了涉及到ＰＲＲＳＶ抗的及细胞抗在的常见本底反应。将这种高质量抗原应用到检测抗ＰＲＲＳＶ抗体的间接ＥＬＩＳＡ中，辅以一咱有效的血清封闭稀释剂可消除血清样品的非特异性反应。这种ＥＬＩＳＡ技术比间接免疫荧光试验（ＩＦＡ）更为敏感；

关键词：猪病 PRRS ELISA 抗原

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Logic-in-memory cell enabling binary and ternary Boolean logics

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Science China(Information Sciences) 2025年第2期68卷 370-379页

作者： Jeongyun OH Juhee JEON Yunwoo SHIN Kyougah cho Sangsig KIM Department of Electrical Engineering Korea University

In computing systems, processing and memory units have been integrated into logic-in-memory(LiM) to enhance the computational efficiency and performance. LiM has been attempted to perform not only binary but also ternary logic functions, which reduces computing complexity. Herein, we demonstrate a binary and ternary LiM(BT-LiM) cell with eight triple-gated(TG) feedback field-effect transistors(FBFETs) reconfigured into n-or p-channel modes. The TG FBFETs exhibit symmetrical latch-up voltages and an on-current ratio of 1.02 between the n-and p-channel modes, which indicates a high potential for reconfigurable logic applications. The BT-LiM cell can perform YES, NOT, AND, OR, NAND, NOR, XNOR, and XOR logic functions in a single cell because of these reconfigurable characteristics. Further, binary and ternary logic functions are realized in the cell without a programming stage, and the cell maintains the results of the logic functions under zero-bias conditions. This study achieves multifunctional LiM that can operate all binary and ternary Boolean logics.

关键词： logic-in-memory reconfigurable channel modes ternary logic triple-gated feedback field-effect transistors

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Three-Stage Transfer Learning with AlexNet50 for MRI Image Multi-Class Classification with Optimal Learning Rate

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 155-183页

作者： Suganya Athisayamani A.Robert Singh Gyanendra Prasad Joshi Woong cho School of Computing Sastra Deemed to be UniversityThanjavur613401India Department of Computational Intelligence SRM Institute of Science and TechnologyKattankulathur603203India Department of AI and Software Engineering Kangwon National UniversitySamcheok25913Republic of Korea Department of Electronics Information and Communication EngineeringKangwon National UniversitySamcheok25913Republic of Korea

In radiology,magnetic resonance imaging(MRI)is an essential diagnostic tool that provides detailed images of a patient’s anatomical and physiological *** is particularly effective for detecting soft tissue ***,radiologists manually interpret these images,which can be labor-intensive and time-consuming due to the vast amount of *** address this challenge,machine learning,and deep learning approaches can be utilized to improve the accuracy and efficiency of anomaly detection in MRI *** manuscript presents the use of the Deep AlexNet50 model for MRI classification with discriminative learning *** are three stages for learning;in the first stage,the whole dataset is used to learn the *** the second stage,some layers of AlexNet50 are frozen with an augmented dataset,and in the third stage,AlexNet50 with an augmented dataset with the augmented *** method used three publicly available MRI classification datasets:Harvard whole brain atlas(HWBA-dataset),the School of Biomedical Engineering of Southern Medical University(SMU-dataset),and The National Institute of Neuroscience and Hospitals brain MRI dataset(NINS-dataset)for *** hyperparameter optimizers like Adam,stochastic gradient descent(SGD),Root mean square propagation(RMS prop),Adamax,and AdamW have been used to compare the performance of the learning ***-dataset registers maximum classification *** evaluated the performance of the proposed classification model using several quantitative metrics,achieving an average accuracy of 98%.

关键词： MRI tumors classification AlexNet50 transfer learning hyperparameter tuning optimizer

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Scalable Ir‑Doped NiFe_(2)O_(4)/TiO_(2) Heterojunction Anode for Decentralized Saline Wastewater Treatment and H_(2) Production

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Nano-Micro Letters 2025年第3期17卷 1-18页

作者： Sukhwa Hong Jiseon Kim Jaebeom Park Sunmi Im Michael R.Hoffmann Kangwoo cho Division of Environmental Science and Engineering Pohang University of Science and Technology(POSTECH)Pohang 790−784Korea Linde Laboratory California Institute of TechnologyPasadenaCA 91125USA Institute for Convergence Research and Education in Advanced Technology(I‑CREATE) Yonsei University International CampusIncheon 21983Republic of Korea

Wastewater electrolysis cells(WECs)for decentralized wastewater treatment/reuse coupled with H_(2) production can reduce the carbon footprint associated with transportation of water,waste,and energy *** study reports Ir-doped NiFe_(2)O_(4)(NFI,~5 at%Ir)spinel layer with TiO_(2) overlayer(NFI/TiO_(2)),as a scalable heterojunction anode for direct electrolysis of wastewater with circumneutral pH in a single-compartment *** dilute(0.1 M)NaCl solutions,the NFI/TiO_(2) marks superior activity and selectivity for chlorine evolution reaction,outperforming the benchmark IrO_(2).Robust operation in near-neutral pH was *** including operando X-ray absorption spectroscopy unveiled crucial roles of TiO_(2) which serves both as the primary site for Cl−chemisorption and a protective layer for NFI as an ohmic *** electrolysis of NH4+-laden synthetic wastewater demonstrated that NFI/TiO_(2)not only achieves quasi-stoichiometric NH_(4)^(+)-to-N_(2)conversion,but also enhances H_(2)generation efficiency with minimal competing reactions such as reduction of dissolved oxygen and reactive *** scaled-up WEC with NFI/TiO_(2)was demonstrated for electrolysis of toilet wastewater.

关键词： Wastewater electrolysis cell Ir-doped NiFe_(2)O_(4) Reactive chlorine species Decentralized H_(2)production On-site wastewater treatment

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MRA定量评价吸烟人群脑血流量的动态演变

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放射学实践 2019年第2期34卷 229-229页

作者： Song Y Kim JG cho hj 黄荟玉郑州大学第一附属医院磁共振科

目的:迄今为止,吸烟对脑血流量的影响机制尚不清楚。本研究旨在通过使用磁共振血管成像(MRA)定量评估吸烟对脑血管血流动力学的动态影响。方法:本研究纳入15名45岁以下且吸烟史超过3年的健康男性吸烟者。使用相位对比MRA测量11个脑血管... 详细信息

目的:迄今为止,吸烟对脑血流量的影响机制尚不清楚。本研究旨在通过使用磁共振血管成像(MRA)定量评估吸烟对脑血管血流动力学的动态影响。方法:本研究纳入15名45岁以下且吸烟史超过3年的健康男性吸烟者。使用相位对比MRA测量11个脑血管段的血流率(CFR,mL/s)和流速(FV,cm/s),用于评估血管血流动力学变化。并对吸烟前后血管内血流量和流速的数据进行配对t检验。随后从15名志愿者中随机选取3名作为对照组,实验过程中不吸烟,MRA检查序列及测量方法同实验组。结果:吸烟后,远端脑血管(大脑前动脉、大脑中动脉和大脑后动脉)总的脑血流率从847mL/s降低至785mL/s,降幅为7.3%,差异有统计学意义(P=0.024);且前循环(大脑前动脉和大脑中动脉)的血流量变化较后循环(大脑后动脉)更为显著。然而,所有远端脑血管内血液流速均无明显变化,收缩期峰值速度和平均速度分别下降7.4%和4.3%,颈内动脉的搏动指数下降10.9%。此外,吸烟后脑血管远端分支的横截面面积减少,尤以大脑中动脉为著,从9.9mm 2减低至9.3mm 2,差异有统计学意义(P=0.016)。结论:吸烟后,健康青年男性吸烟者的脑血流率降低显著,尤以前循环为著。综合考虑流速和横截面面积的动态演变,可得出结论为吸烟后脑血管阻抗增加,特别是颅内远端脑血管主干。

关键词：吸烟人群脑血流量动态演变 MRA 脑血管血流动力学大脑中动脉磁共振血管成像血流动力学变化

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Laser-induced phase segregation of inorganic halide perovskite alloy nanowires for optical switch

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Nano Research 2025年第2期18卷 878-886页

作者： Qihang Lv Xia Shen Xuyang Li Jianzhe Liu Zhaohui Shan Liantuan Xiao Pengfei Guo Johnny cho College of Physics and Optoelectronics Taiyuan University of TechnologyTaiyuan 030024China Huangshan Bright Semiconductor Co. Ltd.Huangshan 245021China Department of Materials Science and Engineering City University of Hong KongKowloonHong Kong 999077China Institute for Materials Chemistry and Engineering Kyushu UniversityFukuoka 819-0395Japan

Inorganic perovskitenanostructures have attracted considerable attention for their tunable band gaps and excellent optoelectronic *** is inevitable that phase segregation of halide perovskite usually occurs in mixed-halide perovskites under a focused laser llumination,which caused by photo-induced halide-ion ***,we reported an uniform perovskite alloy nanowires via a chemical vapor deposition(CvD)*** characterization reveals that these perovskite nanowires have independent linear morphology_with high-quality ***-photoluminescence(PL)spectra exhibit that these nanowire structures show a dual-wavelength emissions at 690 and 570 nm,***,time-dependent PL intensity of the emission peak at 690 nm increased by the decrease of the emission peak at 570 nm under a focused laser llumination,indicating the formation of phase segregation at the excited ***,based on these as-grown halide perovskite CsPbBr2.52lo.48 nanowires,a reasonably optical switch is designed and *** optical switch may have potential applications in timed blasting system and time-delay circuit in the future.

关键词： perovskite alloy nanowires phase segregation dual-wavelength emission optical switch nanophotonics

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High mobility group box 1 in the central nervous system:regeneration hidden beneath inflammation

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Neural Regeneration Research 2025年第1期20卷 107-115页

作者： Hanki Kim Bum Jun Kim Seungyon Koh Hyo Jin cho Xuelian Jin Byung Gon Kim Jun Young choi Department of Brain Science Ajou University School of MedicineSuwonSouth Korea Department of Biomedical Sciences Ajou University Graduate School of MedicineSuwonSouth Korea Department of Neurology Ajou University School of MedicineSuwonSouth Korea Department of Geriatrics The Affiliated Suqian First People’s Hospital of Nanjing Medical UniversitySuqianJiangsu ProvinceChina

High-mobility group box 1 was first discovered in the calf thymus as a DNA-binding nuclear protein and has been widely studied in diverse fields,including neurology and ***-mobility group box 1 in the extracellular space functions as a pro-inflammatory damage-associated molecular pattern,which has been proven to play an important role in a wide variety of central nervous system disorders such as ischemic stroke,Alzheimer’s disease,frontotemporal dementia,Parkinson’s disease,multiple sclerosis,epilepsy,and traumatic brain *** drugs that inhibit high-mobility group box 1 as a damage-associated molecular pattern,such as glycyrrhizin,ethyl pyruvate,and neutralizing anti-high-mobility group box 1 antibodies,are commonly used to target high-mobility group box 1 activity in central nervous system *** it is commonly known for its detrimental inflammatory effect,high-mobility group box 1 has also been shown to have beneficial pro-regenerative roles in central nervous system *** this narrative review,we provide a brief summary of the history of high-mobility group box 1 research and its characterization as a damage-associated molecular pattern,its downstream receptors,and intracellular signaling pathways,how high-mobility group box 1 exerts the repair-favoring roles in general and in the central nervous system,and clues on how to differentiate the pro-regenerative from the pro-inflammatory *** targeting high-mobility group box 1 in the central nervous system may benefit from differentiating between the two functions rather than overall suppression of high-mobility group box 1.

关键词： central nervous system damage-associated molecular pattern ethyl pyruvate glycyrhizzin high mobility group box 1 inflammation neural stem cells neurodevelopment oligodendrocyte progenitor cells redox status regeneration

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Dual‑Donor‑Induced Crystallinity Modulation Enables 19.23% Efficiency Organic Solar Cells

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Nano-Micro Letters 2025年第3期17卷 376-388页

作者： Anhai Liang Yuqing Sun Sein Chung Jiyeong Shin Kangbo Sun Chaofeng Zhu Jingjing Zhao Zhenmin Zhao Yufei Zhong Guangye Zhang Kilwon cho Zhipeng Kan Center On Nanoenergy Research Institute of Science and Technology for Carbon Peak&NeutralitySchool of Physical Science&TechnologyGuangxi UniversityNanning 530004People’s Republic of China Department of Chemical Engineering Pohang University of Science and TechnologyPohang 37673South Korea College of New Materials and New Energies Shenzhen Technology UniversityShenzhen 518118People’s Republic of China Zhejiang Engineering Research Center for Fabrication and Application of Advanced Photovoltaic Materials School of Materials Science and EngineeringNingboTech UniversityNingbo 315100People’s Republic of China State Key Laboratory of Featured Metal Materials and Life-Cycle Safety for Composite Structures Nanning 530004People’s Republic of China

Trap-assisted charge recombination is one of the primary limitationsof restricting the performance of organic solar cells. However, effectivelyreducing the presence of traps in the photoactive layer remains ***, wide bandgap polymer donor PTzBI-dF is demonstrated as an effectivemodulator for enhancing the crystallinity of the bulk heterojunction active layerscomposed of D18 derivatives blended with Y6, leading to dense and orderedmolecular packings, and thus, improves photoluminescence quenching *** a result, the photovoltaic devices exhibit reduced trap-assisted charge recombinationlosses, achieving an optimized power conversion efficiency of over 19%.Besides the efficiency enhancement, the devices comprised of PTzBI-dF as athird component simultaneously attain decreased current leakage, improved chargecarrier mobilities, and suppressed bimolecular charge recombination, leading toreduced energy losses. The advanced crystalline structures induced by PTzBI-dFand its characteristics, such as well-aligned energy level, and complementaryabsorption spectra, are ascribed to the promising performance *** findings suggest that donor phase engineering is a feasible approach to tuning the molecular packings in the active layer, providingguidelines for designing effective morphology modulators for high-performance organic solar cells.

关键词： Trap-assisted charge recombination Photoluminescence Miscibility Current leakage Power conversion efficiency

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Double-sided gastric perforation after a motorcycle accident in Korea:A case report

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World Journal of Clinical Cases 2025年第17期13卷 27-34页

作者： In Soo cho Chan Hee Park Jeong Woo Lee Division of Trauma Surgery and Surgical Critical Care Department of SurgeryKeimyung University School of MedicineDongsan Medical CenterDaegu 42601South Korea

BACKGROUND Motorcycle accidents often result in abdominal trauma in patients seeking emergency *** to the hollow viscera,including the duodenum,jejunum,urinary bladder,and colorectum,are relatively *** contrast,owing to the protective function of the anterior rib cage,gastric rupture is exceptionally rare,with an incidence of<1.7%.Gastric rupture typically occurs in the anterior wall and rarely presents as multiple *** report describes an unusual case of multiple gastric ruptures resulting from blunt *** SUMMARY A 21-year-old man,who was involved in a motorcycle collision at 70 km/hour after consuming a large meal,presented with *** examination revealed abdominal *** test results indicated elevated amylase,lipase,and liver enzyme *** tomography showed pneumoperitoneum,hemoperitoneum,and gastric wall discontinuation,suggesting gastric perforation alongside pancreatic,splenic,and hepatic *** embolization was performed because of active contrast leakage in the left gastric and right gastroepiploic *** laparotomy revealed substantial blood loss,hematoma,and gastric contents scattered throughout the abdominal *** 10 cm gastric perforations in the anterior and posterior walls were identified,as well as severe liver damage,splenic injury,and pancreatic *** interventions included primary closure of the gastric wall,splenectomy,and partial *** temporary abdominal closure,the patient underwent a second surgery without further *** gastric repair site was resected and reinforced for optimal tissue *** Gastric rupture following blunt trauma is ***,patients without severe complications can recover through surgical interventions and postoperative care.

关键词： Abdominal blunt trauma Bleeding Gastric perforation Patient Traumatic stomach perforation Case report

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