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Simple method of measuring ocular rotation in supine position during small incision lenticule extraction

International Journal of Ophthalmology(English edition) 2022年第8期15卷 1331-1337页

作者： Jiho Song Hwanho Lee moon sun jung Jae-hyung Kim Seoul Daabom Eye Center CheongjuChungbuk 28396Republic of Korea Department of Ophthalmology Chungbuk National University HospitalCollege of MedicineChungbuk National UniversityCheongjuChungbuk 28644Republic of Korea

AIM:To introduce a novel measurement method of static cyclotorsion in small incision lenticule extraction(SMILE)and to investigate the effect of preoperative parameters on cyclotorsion and the effect of cyclotorsion on postoperative ***:The medical records of 242 patients and 484 eyes who under went SMILE surger y were retrospectively *** intraocular pressure,refractive error,and corneal thickness were *** values and visual acuity were measured at 1d,1,3,and *** cyclotorsion in the supine position was measured by calculating the location and angle of the incision site of the cornea in the anterior slit photograph taken after ***:Of the total 484 eyes in 242 patients,preopera tive means phericale quivalent(SE)was-4.10±1.64 D,and the mean astigmatism was-0.82±0.74 *** distance visual acuity(UCVA)and SE improved significantly after the ***,219(45.2%)eyes had excyclotorsion,235(48.6%)eyes had incyclotorsion,and 30(6.2%)eyes had no *** right eyes tended to be excyclotorted,and the left eyes tended to be incyclotorted(P<0.01).The mean cyclotorsion was 1.18°±3.69°,and the mean absolute value of cyclotorsion was 3.14°±2.26°.The range of cyclotorsion was 0.5°–11.4°.It was found that the smaller the preoperative sphere,the higher the amount of cyclotorsion(r=0.11,P=0.016).There was no significant association between the amount of cyclotorsion and preoperative *** was no correlation between sex,preoperative corneal thickness,preoperative intraocular pressure,amount of cyclotorsion,and direction of *** ratio of right eye excyclotorsion and left eye incyclotorsion on 1d was higher than that at 1,3,and 6mo(all P<0.01).There was no difference between the 1,3,and 6mo results in the right and left eyes(P=0.15,P=0.16,respectively).CONCLUSION:The newly devised ocular cyclotorsion measurement method can be used to evaluate ocular cyclotorsion after ***

关键词： anterior slit photograph astigmatism cyclotorsion myopia small incision lenticule extraction

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参与式预算与政府效率:来自韩国市级政府的证据

国际行政科学评论（中文版）

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国际行政科学评论（中文版） 2022年第4期 206-227页

作者：孙文俊邵彤(译) 熊缨(审校) 韩国首尔国立大学工商管理学院中国人事科学研究院不详

本研究评估了参与式预算在提高政府效率方面的作用。参与性机构旨在加强治理、信息共享和政治机构对公民的响应,从而提高财政问责制和效率。从韩国221个市级政府的数据库中提取强制性参与式预算采用期间的数据,我们发现在采用参与式预算... 详细信息

本研究评估了参与式预算在提高政府效率方面的作用。参与性机构旨在加强治理、信息共享和政治机构对公民的响应,从而提高财政问责制和效率。从韩国221个市级政府的数据库中提取强制性参与式预算采用期间的数据,我们发现在采用参与式预算后,政府效率的多个方面都有所提高。特别是,市级政府在财政可持续性和行政效率方面取得了统计上的显著改善。在进一步的分析中,我们发现,在市级政府领导有力的情况下,效率的提高更加明显。总体研究结果表明,参与式预算方案对财政健康和行政效率的贡献超过了其在确保财政民主方面的作用。

关键词：民主制度政府效率参与式预算地方治理

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An Effective Threat Detection Framework for Advanced Persistent Cyberattacks

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Computers, Materials & Continua 2023年第5期75卷 4231-4253页

作者： So-Eun Jeon sun-Jin Lee Eun-Young Lee Yeon-Ji Lee jung-Hwa Ryu jung-Hyun moon sun-Min Yi Il-Gu Lee Department of Future Convergence Technology Engineering Sungshin Women’s UniversitySeoul02844Korea Department of Convergence Security Engineering Sungshin Women’s UniversitySeoul02844Korea

Recently,with the normalization of non-face-to-face online environments in response to the COVID-19 pandemic,the possibility of cyberattacks through endpoints has *** endpoint devices are managed meticulously to prevent cyberattacks and ensure timely responses to potential security *** particular,because telecommuting,telemedicine,and teleeducation are implemented in uncontrolled environments,attackers typically target vulnerable endpoints to acquire administrator rights or steal authentication information,and reports of endpoint attacks have been increasing *** persistent threats(APTs)using various novel variant malicious codes are a form of a sophisticated ***,conventional commercial antivirus and anti-malware systems that use signature-based attack detectionmethods cannot satisfactorily respond to such *** this paper,we propose a method that expands the detection coverage inAPT attack *** this model,an open-source threat detector and log collector are used synergistically to improve threat detection *** the scope of attack log collection through interworking between highly accessible open-source tools can efficiently increase the detection coverage of tactics and techniques used to deal with APT attacks,as defined by MITRE Adversarial Tactics,Techniques,and Common Knowledge(ATT&CK).We implemented an attack environment using an APT attack scenario emulator called Carbanak and analyzed the detection coverage of Google Rapid Response(GRR),an open-source threat detection tool,and Graylog,an open-source log *** proposed method expanded the detection coverage against MITRE ATT&CK by approximately 11%compared with that conventional methods.

关键词： Advanced persistent threat cybersecurity endpoint security MITRE ATT&CK open-source threat detector threat log collector

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Optimally arranged TiO_(2)@MoS_(2) heterostructures with effectively induced built-in electric field for high-performance lithium-sulfur batteries

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Journal of Energy Chemistry 2023年第8期83卷 496-508,I0012页

作者： Jeongyoub Lee Changhoon Choi jung Been Park Seungho Yu Jinho Ha Hyungsoo Lee Gyumin Jang Young sun Park Juwon Yun Hayoung Im Subin moon Soobin Lee jung-Il Choi Dong-Wan Kim Jooho moon Department of Materials Science and Engineering Yonsei UniversitySeoul 03722Republic of Korea School of Civil Environmental and Architectural EngineeringKorea UniversitySeoul 02841Republic of Korea Energy Storage Research Center Korea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea School of Mathematics and Computing(Computational Science and Engineering) Yonsei UniversitySeoul 03722Republic of Korea

To overcome the serious technological issues affecting lithium-sulfur(Li-S) batteries,such as sluggish sulfur redox kinetics and the detrimental shuttle effect,heterostructure engineering has been investigated as a strategy to effectively capture soluble lithium polysulfide intermediates and promote their conversion reaction by integrating highly polar metal oxides with catalytically active metals ***,to fully exploit the outstanding properties of heterostructure-based composites,their detailed structure and interfacial contacts should be designed ***,optimally arranged TiO_(2)and MoS_(2)-based heterostructures(TiO_(2)@MoS_(2)) are fabricated on carbon cloth as a multifunctional interlayer to efficiently trap polysulfide intermediates and accelerate their redox *** to the synergistic effects between TiO_(2)and MoS_(2)and the uniform heterointerface distribution that induces the ideally oriented built-in electric field,Li-S batteries with TiO_(2)@MoS_(2)interlayers exhibit high rate capability(601 mA h g^(-1)at 5 C),good cycling stability(capacity-fade rate of 0.067% per cycle over 500 cycles at2 C),and satisfactory areal capacity(5.2 mA h cm^(-2)) under an increased sulfur loading of 5.2 mg cm^(-2).Moreover,by comparing with a MoS_(2)@TiO_(2)interlayer composed of reversely arranged heterostructures,the effect of the built-in electric field’s direction on the electrocatalytic reactions of polysulfide intermediates is thoroughly investigated for the first *** superior electrocatalytic activities of the rationally arranged TiO_(2)@MoS_(2)interlayer demonstrate the importance of optimizing the built-in electric field of heterostructures for producing high-performance Li-S batteries.

关键词： Lithium-sulfur batteries Shuttle effect TiO_(2)-MoS_(2)heterostructure engineering Built-in electric field Multifunctional interlayers

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Process-Based Crop Modeling for High Applicability with Attention Mechanism and Multitask Decoders

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Plant Phenomics 2023年第2期5卷 378-390页

作者： Taewon moon Dongpil Kim sungmin Kwon jung Eek Son Department of Agriculture Forestry and BioresourcesSeoul National UniversitySeoul 08826Republic of Korea Research Institute of Agriculture and Life Sciences Seoul National UniversitySeoul 08826Republic of Korea Protected Horticulture Research Institute National Institute of Horticultural&Herbal ScienceRural Development AdministrationHaman 52054Republic of Korea

Crop models have been developed for wide research purposes and scales,but they have low compatibility due to the diversity of current modeling *** model adaptability can lead to model *** deep neural networks have no conventional modeling parameters,diverse input and output combinations are possible depending on model *** these advantages,no process-based crop model has been tested in full deep neural network *** objective of this study was to develop a process-based deep learning model for hydroponic sweet *** mechanism and multitask learning were selected to process distinct growth factors from the environment *** algorithms were modified to be suitable for the regression task of growth *** were conducted twice a year for 2 years in *** developed crop model,DeepCrop,recorded the highest modeling efficiency(=0.76)and the lowest normalized mean squared error(=0.18)compared to accessible crop models in the evaluation with unseen *** t-distributed stochastic neighbor embedding distribution and the attention weights supported that DeepCrop could be analyzed in terms of cognitive *** the high adaptability of DeepCrop,the developed model can replace the existing crop models as a versatile tool that would reveal entangled agricultural systems with analysis of complicated information.

关键词： Deep replace versatile

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The diluted atropine for inhibition of myopia progression in Korean children

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International Journal of Ophthalmology(English edition) 2018年第10期11卷 1657-1662页

作者： Ji-sun moon sun Young Shin Department of Ophthalmology National Medical Center Department of Ophthalmology and Visual Science Seoul St.Mary's Hospital College of Medicine the Catholic University of Korea

AIM：To evaluate the efficacy and safety of three different concentrations of diluted atropine for the control of myopia in Korean children,and to assess the risk factors associated with rapid myopia ***：A total of 285 children,with refractive errors within the range of-6 diopters（D）between 5 and 14 years of age were *** using 0.01%,or 0.025%,or 0.05% atropine,for about 1y,changes in refraction,axial lengths and frequency of adverse events were *** regression analyses were performed to evaluate the risk factors associated with rapid myopia ***：The changes in the mean spherical equivalent values were -0.134 D/mo in the before atropine group,-0.070 D/mo in the 0.01% atropine group,-0.047 D/mo in the 0.025% atropine group,and -0.019 D/mo in the 0.05% atropine group,with significant differences between the groups（P〈0.001）.The axial elongation was 0.046 mm/mo,0.037 mm/mo,0.025 mm/mo,and 0.019 mm/mo respectively,with significant differences between the groups（P=0.003）.The incidence of photophobia and near vision difficulty was not different among the three atropine groups（P=0.425and P=0.356,respectively）.Multivariate logistic regression analyses showed that only highly myopic parents were a significant predictive factor of rapid myopia progression in Korean children（odds ratio,8.155;95% confidence interval,3.626-18.342;P〈0.001）.CONCLUSION：Treatment with 0.01%,0.025% and 0.05% atropine solution inhibits myopia progression in Korean children in a dose-dependent *** with highly myopic parents preferentially shows a rapid myopia progression rate.

关键词： atropine Korean children myopia progression

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Consistency of intensity ratio between spectral lines with similar self-absorption characteristics during ungated laser induced breakdown spectroscopy measurements

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Plasma Science and Technology 2019年第3期21卷 77-83页

作者： jung-Hwan IN Youngmin moon Jang-Hee CHOI sungho JEONG Optical Lens Research Center Korea Photonics Technology Institute School of Mechanical Engineering Gwangju Institute of Science and Technology

This work reports that the intensity ratio of spectral lines having similar self-absorption characteristics during laser induced breakdown spectroscopy(LIBS) analysis can become nearly constant over a wide range of irradiation conditions if the intensities are integrated over a sufficiently long time. It is shown that the plasma temperature and intensity ratio of these spectral lines have temporal similarity. The spectral lines with similar self-absorption properties may be selected to improve the accuracy and consistency of LIBS analysis results under an environment with fluctuating measurement conditions.

关键词： laser induced breakdown spectroscopy intensity ratio self-absorption characteristics CIGS solar cell

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Machine Learning-Based Two-Stage Data Selection Scheme for Long-Term Influenza Forecasting

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Computers, Materials & Continua 2021年第9期68卷 2945-2959页

作者： Jaeuk moon Seungwon jung sungwoo Park Eenjun Hwang School of Electrical Engineering Korea UniversitySeoul02841Korea

One popular strategy to reduce the enormous number of illnesses and deaths from a seasonal influenza pandemic is to obtain the influenza vaccine on ***,vaccine production preparation must be done at least six months in advance,and accurate long-term influenza forecasting is essential for *** diverse machine learning models have been proposed for influenza forecasting,they focus on short-term forecasting,and their performance is too dependent on input *** a country’s longterm influenza forecasting,typical surveillance data are known to be more effective than diverse external data on the *** propose a two-stage data selection scheme for worldwide surveillance data to construct a longterm forecasting model for influenza in the target *** the first stage,using a simple forecasting model based on the country’s surveillance data,we measured the change in performance by adding surveillance data from other countries,shifted by up to 52 *** the second stage,for each set of surveillance data sorted by accuracy,we incrementally added data as input if the data have a positive effect on the performance of the forecasting model in the first *** the selected surveillance data,we trained a new longterm forecasting model for influenza and perform influenza forecasting for the target *** conducted extensive experiments using six machine learning models for the three target countries to verify the effectiveness of the proposed *** report some of the results.

关键词： Influenza data selection machine learning forecasting

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Broadcast-Based Spatial Queries

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Journal of Computer Science & Technology 2005年第6期20卷 811-821页

作者： Kwang-Jin Park moon-Bae Song Chong-sun Hwang Department of Computer Science and Engineering Korea University 5-1 Anam-Dong Seongbuk-Ku Seoul 136-701 Korea

Indexing techniques have been developed for wireless data broadcast environments, in order to conserve the scarce power resources of the mobile clients. However, the use of interleaved index segments in a broadcast cycle increases the average access latency for the clients. In this paper, the broadcast-based spatial query processing methods （BBS） are presented for the location-based services. In the BBS, broadcasted data objects are sorted sequentially based on their locations, and the server broadcasts the location dependent data along with an index segment. Then, a sequential prefetehing and caching scheme is designed to reduce the query response time. The performance of this scheme is investigated in relation to various environmental variables, such as the distributions of the data objects, the average speed of the clients and the size of the service area.

关键词： broadcasting location-aware caching prefetching mobile computing

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Enhancing Building Facade Image Segmentation via Object-Wise Processing and Cascade U-Net

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Computers, Materials & Continua 2024年第11期81卷 2261-2279页

作者： Haemin jung Heesung Park Hae sun jung Kwangyon Lee Department of Industrial&Management Engineering Korea National University of TransportationChungju27469Republic of Korea Department of Industrial Engineering Yonsei UniversitySeoul03722Republic of Korea Department of Applied Artificial Intelligence Sungkyunkwan UniversitySeoul03063Republic of Korea School of Electronic Engineering Soongsil UniversitySeoul06978Republic of Korea

The growing demand for energy-efficient solutions has led to increased interest in analyzing building facades,as buildings contribute significantly to energy consumption in urban ***,conventional image segmentation methods often struggle to capture fine details such as edges and contours,limiting their effectiveness in identifying areas prone to energy *** address this challenge,we propose a novel segmentation methodology that combines object-wise processing with a two-stage deep learning model,Cascade ***-wise processing isolates components of the facade,such as walls and windows,for independent analysis,while Cascade U-Net incorporates contour information to enhance segmentation *** methodology involves four steps:object isolation,which crops and adjusts the image based on bounding boxes;contour extraction,which derives contours;image segmentation,which modifies and reuses contours as guide data in Cascade U-Net to segment areas;and segmentation synthesis,which integrates the results obtained for each object to produce the final segmentation *** to a dataset of Korean building images,the proposed method significantly outperformed traditional models,demonstrating improved accuracy and the ability to preserve critical structural ***,we applied this approach to classify window thermal loss in real-world scenarios using infrared images,showing its potential to identify windows vulnerable to energy ***,our Cascade U-Net,which builds upon the relatively lightweight U-Net architecture,also exhibited strong performance,reinforcing the practical value of this *** approach offers a practical solution for enhancing energy efficiency in buildings by providing more precise segmentation results.

关键词： Building facade image image segmentation edge detection

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