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Food Bioscience 2022年第6期50卷 1941-1948页

作者： Li Nan Hyeon-Hwa Nam byung-kil choo Agricultural College Yanbian UniversityYanji CityJilin ProvincePeople's Republic of China Herbal Medicine Resources Research Center Korea Institute of Oriental MedicineNaju-siJeollanam-doRepublic of Korea Department of Crop Science and Biotechnology Chonbuk National UniversityJeonjuRepublic of Korea

Agastache rugosa is a kind of herbal plant with good biological activity,which is used for both medicine and *** is mainly used for the treatment of gastritis,heat stroke and other *** esophagitis is an inflammatory disease with an increasing incidence and a younger age group of patients,which seriously affects the quality of life of *** this study,the anti-inflammatory effect of ethanol extract of Agastache rugosa at the cellular level and the protective effect on exophages injury in rats with acute reflux esophagitis were *** results showed that the ethanol extract of Agastache rugosa reduced the expression of cytokines and effectively inhibited the cellular inflammation regulated by NF-κ*** addition,the injury state of rat exophages tissue was significantly improved and the expression of inflammatory factors in exophages tissue was ***,the ethanol extract of Agastache rugosa exhibits excellent anti-inflammatory activity and has the potential as a natural medicinal resource for the treatment of reflux esophagitis.

关键词： Agastache rugosa Anti-inflammation NF-κB signalling pathway Reflux esophagitis

Location-Based Data Dissemination for Spatial Queries in Wireless Broadcast Environments

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Journal of Computer Science & Technology 2010年第2期25卷 330-346页

作者： Kwangjin Park Hyunseung choo School of Electrical Electronics and Information Engineering Wonkwang University School of Information and Communication Engineering Sungkyunkwan University

Most current research on Location-Based Services （LBSs, for short） assumes point-to-point wireless commu- nication, where the server processes a query and returns the query result to the user via a point-to-point wireless channel. However, LBSs via point-to-point wireless channel suffer from a tremendous amount of tramc and service requests from the user and thereby result in poor performance. In this paper, we present broadcast-based spatial query processing algorithms designed to support k-NN （k-Nearest Neighbor） and range queries via a wireless network. The task of the query processor is to selectively monitor the wireless broadcast channel, when the data items are disseminated by the server, according to their locations. Experiments are conducted to evaluate the performance of the proposed algorithms. Comprehensive experiments illustrate that the presented algorithms are highly scalable and are more efficient than the previous techniques in terms of both access time and energy consumption.

关键词： distributed databases indexing methods information storage and retrieval spatial databases and GIS

Evaluation of the coefficient of lateral stress at rest of granular materials under repetitive loading conditions

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第5期16卷 1709-1721页

作者： Heerym Han Hyunwook choo Junghee Park Department of Civil and Environmental Engineering Hanyang UniversitySeoul04763South Korea Department of Civil and Environmental Engineering Incheon National UniversityIncheon22012South Korea

Although the internal stress state of soils can be affected by repetitive loading,there are few studies evaluating the lateral stress(or K_(0))of soils under repetitive *** study investigates the changes in K_(0) and directional shear wave velocity(V_(s))in samples of two granular materials with different particle shapes during repetitive loading.A modified oedometer cell equipped with bender elements and a diaphragm transducer was developed to measure the variations in the lateral stress and the shear wave velocity,under repetitive loading on the loading and unloading *** study produced the following results:(1)Repetitive loading on the loading path resulted in an increase in the K_(0) of test samples as a function of cyclic loading number(i),and(2)Repetitive loading on the unloading path resulted in a decrease in K_(0) according to *** shear wave velocity ratio(i.e.V_(s)(HH)/V_(s)(VH),where the first and second letters in parentheses corresponds to the directions of wave propagation and particle motion,respectively,and V and H corresponds to the vertical and horizontal directions,respectively)according to i supports the experimental observations of this ***,when the tested material was in lightly over-consolidated state,there was an increase in K_(0) during repetitive loading,indicating that it was the initial K_(0),rather than the loading path,which is responsible for the change in K_(0).The power model can capture the variation in the K_(0) of samples according to ***,the K_(0)=1 line acts as the boundary between the increase and decrease in K_(0) under repetitive loading.

关键词： Coefficient of lateral stress at rest Repetitive loading Granular materials Shear wave velocity Stiffness anisotropy

The burden of prostatic calculi is more important than the presence

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Asian Journal of Andrology 2017年第4期19卷 482-485页

作者： Bumsoo Park Seol Ho choo Department of Urology Kangnam General Hospital Yongin Korea Department of Family Medicine Henry Ford Hospital Wayne State University School of Medicine Detroit MI United States Department of Urology Ajou University School of Medicine Suwon Korea

Prostatic calculi are a common finding on transrectal prostate ultrasound. However, it remains unclear whether they are significantly associated with lower urinary tract symptoms （LUTS）. Our objective was to evaluate the association between prostatic calculi and LUTS with a focus on ＂calculi burden＂ because no studies have investigated prostatic calculi using ＂calculi burden＂ as an indicator. A total of 606 participants who received transrectal prostate ultrasound were divided into two groups according to the presence of prostatic calculi. ＂Calculi burden＂ was defined as the sum of the transverse diameters of all visible calculi within the prostate. The International Prostatic Symptom Score （IPSS） and a quality of life （QoL） score were collected. Both groups were compared, and a multivariate analysis was performed to predict moderate/severe LUTS. Linear correlation was evaluated between calculi burden and IPSS in the calculi group. No differences in total IPSS, voiding IPSS, or QoL score were detected between the two groups, but storage IPSS was significantly higher in the calculi group than that of controls. The multivariate analysis showed that the presence of prostatic calculi was not an independent predictor of moderate/severe LUTS. A positive linear correlation was detected between calculi burden and storage IPSS in calculi group （r = O. 148）. However, no correlation was found between calculi burden and total IPSS, voiding IPSS, or QoL score. Our results showed that the presence of prostatic calculi was not a significant factor predicting moderate/severe LUTS. However, an increased calculi burden may be associated with aggravating storage symptoms.

关键词： calculi lower urinary tract symptoms prostate prostatitis

An Efficient Data Dissemination Scheme for Spatial Query Processing

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Journal of Computer Science & Technology 2007年第1期22卷 131-134页

作者： Kwangjin Park Hyunseung choo Chong-Sun Hwang School of Information and Communication Engineering Sungkyunkwan University 440-746 Suwon Korea Department of Computer Science and Engineering Korea University 5-1 Anam-Dong Seongbuk-Ku Seoul 136-701 Korea

Due to the personal portable devices and advances in wireless communication technologies, Location Dependent Information Services （LDISs） have received a lot of attention from both the industrial and academic communities. In LDISs, it is important to reduce the query response time, since a late query response may contain out-of-date information. In this paper, we study the issue of LDISs using a Voronoi Diagram. We introduce a new NN search method, called the Exponential Sequence Scheme （ESS）, to support NN query processing in periodic broadcast environment. This paper aims to provide research directions towards minimizing both the access latency and energy consumption for the NN-query processing.

关键词： air index wireless data broadcasting mobile computing

Quantum computation with surface-state electrons by rapid population passages

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Science China(Physics,Mechanics & Astronomy) 2014年第9期57卷 1718-1724页

作者： SHI Xuan WEI LianFu OH choo Hiap Quantum Optoelectronics Laboratory School of Physics and Technology Southwest Jiaotong University Centre for Quantum Technologies and Department of Physics National University of Singapore State Key Laboratory of Optoelectronic Materials and Technologies School of Physics Science and Engineering Sun Yet-sen University

Quantum computation requires coherently controlling the evolutions of ***,these manipulations are implemented by precisely designing the durations(such as theπ-pulses)of the Rabi oscillations and tunable interbit *** this requirement,herein we show that the desired population transfers between the logic states can be deterministically realized(and thus quantum computation could be implemented)both adiabatically and non-adiabatically,by performing the duration-insensitive quantum *** proposal is specifically demonstrated with the surface-state of electrons floating on the liquid helium,but could also be applied to the other artificially controllable systems for quantum computing.

关键词： quantum computation surface-state electrons rapid population passages

Fighting COVID-19 and Future Pandemics With the Internet of Things:Security and Privacy Perspectives

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IEEE/CAA Journal of Automatica Sinica 2021年第9期8卷 1477-1499页

作者： Mohamed Amine Ferrag Lei Shu Kim-Kwang Raymond choo Department of Computer Science Guelma UniversityB.P.40124000Algeria College of Artificial Intelligence Nanjing Agricultural UniversityNanjing 210095Chinaand also with the School of EngineeringUniversity of LincolnLincoln LN67TSUK Department of Information Systems and Cyber Security University of Texas at San AntonioSan AntonioTX 78249-0631 USA

The speed and pace of the transmission of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2;also referred to as novel Coronavirus 2019 and COVID-19)have resulted in a global pandemic,with significant health,financial,political,and other *** have been various attempts to manage COVID-19 and other pandemics using technologies such as Internet of Things(IoT)and 5G/6G ***,we also need to ensure that IoT devices used to facilitate COVID-19 monitoring and treatment(e.g.,medical IoT devices)are secured,as the compromise of such devices can have significant consequences(e.g.,life-threatening risks to COVID-19 patients).Hence,in this paper we comprehensively survey existing IoT-related solutions,potential security and privacy risks and their *** example,we classify existing security and privacy solutions into five categories,namely:authentication and access control solutions,key management and cryptography solutions,blockchain-based solutions,intrusion detection systems,and privacy-preserving *** each category,we identify the associated *** also identify a number of recommendations to inform future research.

关键词： Blockchain COVID-19 healthcare privacy SARS-CoV-2 security

Image-Based Lifelogging: User Emotion Perspective

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Computers, Materials & Continua 2021年第5期67卷 1963-1977页

作者： Junghyun Bum Hyunseung choo Joyce Jiyoung Whang College of Computing Sungkyunkwan UniversitySuwon16417Korea School of Computing KAISTDaejeon34141Korea

Lifelog is a digital record of an individual’s daily *** collects,records,and archives a large amount of unstructured data;therefore,techniques are required to organize and summarize those data for easy *** has been utilized for diverse applications including healthcare,self-tracking,and entertainment,among *** regard to the imagebased lifelogging,even though most users prefer to present photos with facial expressions that allow us to infer their emotions,there have been few studies on lifelogging techniques that focus upon users’*** this paper,we develop a system that extracts users’own photos from their smartphones and congures their lifelogs with a focus on their *** design an emotion classier based on convolutional neural networks(CNN)to predict the users’*** train the model,we create a new dataset by collecting facial images from the CelebFaces Attributes(CelebA)dataset and labeling their facial emotion expressions,and by integrating parts of the Radboud Faces Database(RaFD).Our dataset consists of 4,715 high-resolution *** propose Representative Emotional Data Extraction Scheme(REDES)to select representative photos based on inferring users’emotions from their facial *** addition,we develop a system that allows users to easily congure diaries for a special day and summaize their *** experimental results show that our method is able to effectively incorporate emotions into lifelog,allowing an enriched experience.

关键词： Lifelog facial expression emotion emotion classier transfer learning

MODEL STUDY OF DESIGN COMPONENTS FOR ENERGY-PERFORMANCE-BASED ARCHITECTURAL DESIGN USING BIM LOD 100

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Journal of Green Building 2015年第2期10卷 179-197页

作者： KweonHyoung Lee InHan Kim SeungYeon choo Kyungpook National University DaeguRepublic of Korea Kyunghee University Global Campus YonginRepublic of Korea.

One of the biggest global issues at present involves the search for measures to conserve energy and to combat climate *** of an increase in natural disasters and energy use,architects and engineers have been focusing more on creating green buildings with low-carbon *** information modeling(BIM)is used to record all of the data related to buildings from the early design *** information can be used to respond to energy simulation feedback and to accommodate changes that may be necessary during the design *** mitigate greenhouse gas emissions and to conserve energy in the buildings,the application of a BIM-based low-carbon design technique is required from the early design ***,the existing research is limited to sub-segmented topics;therefore,it is difficult for designers to establish a rank grade for a low-carbon design technique that is required for application in design *** this study,we attempt to analyze the rank grade and the correlation among design components that affect a building’s energy *** selected tower buildings for the experiment,as they consume a massive amount of energy and have a large impact on the surrounding *** analyzed the values that resulted from different shapes,scales,slenderness ratios,window-to-wall ratios,and solar orientations of the tower ***,we identified a correlation and rank grade among different design *** can maximize energy performance efficiency by considering and applying the rank grade of a low-carbon design technique during design *** addition,the development of guidelines for green BIM would reduce confusion in the decision-making process and design modification during the stages of design development,which would then minimize the ***,it is expected that this study can be used to create a database for the realization of green buildings.

关键词： Green BIM Energy-performance-based Architecture Design Components Tower Office

A provable-secure and practical two-party distributed signing protocol for SM2 signature algorithm

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Frontiers of Computer Science 2020年第3期14卷 203-215页

作者： Yudi ZHANG Debiao HE Mingwu ZHANG Kim-Kwang Raymond choo Key Laboratory of Aerospace Information Security and Trusted Computing of Ministry of Education School of Cyber Science and EngineeringWuhan UniversityWuhan 430072China School of Computer Sciences Hubei University of TechnologyWuhan 430068China Department of Information Systems and Cyber Security and Department of Electrical and Computer Engineering University of Texas at San AntonioSan AntonioTX 78249USA

Mobile devices are widely used for data access,communications and ***,storing a private key for signature and other cryptographic usage on a single mobile device can be challenging,due to its computational ***,a number of(t,n)threshold secret sharing schemes designed to minimize private key from leakage have been proposed in the ***,existing schemes generally suffer from key reconstruction *** this paper,we propose an efficient and secure two-party distributed signing protocol for the SM2 signature *** latter has been mandated by the Chinese government for all electronic commerce *** proposed protocol separates the private key to storage on two devices and can generate a valid signature without the need to reconstruct the entire private *** prove that our protocol is secure under nonstandard ***,we implement our protocol using MIRACL Cryptographic SDK to demonstrate that the protocol can be deployed in practice to prevent key disclosure.

关键词： SM2 signature two-party signing wireless environment provable security threshold secret sharing