• International Journal of Computer Science & Network Security
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• 제22권5호
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• pp.225-233
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• 2022

Due to the large number of documents that are important to people and many of their requests from time to time to perform an essential official procedure, this requires a practical arrangement and organization for them. When necessary, many people struggle with effectively arranging official documents that enable display, which takes a lot of time and effort. Also, no mobile apps specialize in professionally preserving essential electronic records and displaying them when needed. Dataset consisting of 10,841 rows and 13 columns was analyzed using Anaconda, Python, and Mito Data Science new tool obtained from Google Play. The research was conducted using the quantitative descriptive approach. The presented solution is a model specialized in saving essential documents, categorizing according to the user's desire, and displaying them when needed. It is possible to send in an image or a pdf file. Aside from identifying file kinds like PDFs and pictures, the model also looks for and verifies specific file extensions. The file extension and its properties are checked before sharing or saving it by applying the similarity algorithm (Levenshtein). Our method effectively and efficiently facilitated the search process, saving the user time and effort. In conclusion, such an application is not available, which facilitates the process of classifying documents effectively and displaying them quickly and easily for people for printing or sending to some official procedures, and it is considered one of the applications that greatly help in preserving time, effort, and money for people.

• 한국전기전자재료학회논문지
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• 제36권5호
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• pp.423-432
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• 2023

With the increasing demand for mobile devices featuring multi-touch operation, extensive research is being conducted on touch screen panel (TSP) Readout ICs (ROICs) that should possess low power consumption, compact chip size, and immunity to external noise. Therefore, this paper discusses capacitive touch sensors and their readout circuits, and it introduces research trends in various circuit designs that are robust against external noise sources. The recent state-of-the-art TSP ROICs have primarily focused on minimizing the impact of parasitic capacitance (Cp) caused by thin panel thickness. The large Cp can be effectively compensated using an area-efficient current compensator and Current Conveyor (CC), while a display noise reduction scheme utilizing a noise-antenna (NA) electrode significantly improves the signal-to-noise ratio (SNR). Based on these achievements, it is expected that future TSP ROICs will be capable of stable operation with thinner and flexible Touch Screen Panels (TSPs).

• Journal of Korea Trade
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• 제27권4호
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• pp.45-60
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• 2023

Purpose - This research focused on women who enjoy watching Korean dramas and K-pop, as well as how their desire to imitate are influenced by their viewing habits. Due to the influence of their idols, women who aspire to copy and are influenced by their idols will desire to purchase Korean products. This cultural export strategy has effectively persuaded the global community, particularly women. Indonesia with a large population can be a reference for the industry to increase sales of South Korean beauty products, especially in the ASEAN region. Design/methodology - This research used a quantitative approach with an online questionnaire. This questionnaire had two steps: the pre-questionnaire and the questionnaire itself. The different measuring tools that were already in use when the data were being collected helped to determine how much each variable meant. As a part of this research project, 410 Indonesian women filled out the questionnaire in order to share their thoughts as they were the focus of the study. SMART PLS was used to analyze the data. Findings - One of the most essential findings from establishing the Korean Wave effect on purchase intention was the imitation intention variable. Someone who has the aspiration to be just like their idol will be willing to give anything in order to achieve that goal. One strategy is to buy things that are similar to the ones you want to imitate in order to stimulate demand for Korean products. People's imitation intention and attitude toward Korean products will increase as a result of Korean drama and K-pop elements that display one's idols with fashionable appearances and good-looking faces, which will lead to purchase intentions. Originality/value - The Korean Wave has had a beneficial impact on the intention to imitate and the attitude toward Korean items, both of which will favorably boost the intention to acquire Korean goods. In order to boost sales in international markets, particularly in Indonesia, the Korean business sector needs to increase the number of artists and singers it employs for product promotion. . Mutualism effect between the government, the entertainment industry, and the beauty product industry to increase sales of South Korean beauty products.

• 한국인터넷방송통신학회논문지
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• 제23권3호
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• pp.65-70
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• 2023

디지털 미디어 환경은 디지털 매체를 다각화시키면서 사용자 중심의 다양한 형태로 접근하고 있다. 디지털 기술의 발전에 의해 디지털 미디어 환경은 광대한 네트워크 정보망을 형성하고 보다 인터렉티브한 커뮤니케이션을 지원함으로써 이와 관련 사용자 중심의 기초 연구가 필요하다. 디지털 미디어 환경을 대표할 수 있는 모바일 디스플레이는 휴대성이 높은 장점을 갖고 있지만 소형화와 전력절감을 위해 얇은 디스플레이 패널과 저성능 이미지 센서를 채택하는 등 대형 디스플레이에 비해 색상 표현력이 떨어질 수밖에 없다. 본 연구에서는 대표적 디지털 융합 매체인 모바일 디스플레이를 구체적 연구대상으로 사용자 중심의 다크 모드와 라이트 모드에서 시감적 색채 인지특성에 대해 알아보고자 한다. 시감적 색채 인지 특성을 알아보고자 KS 12가지 색채를 기반으로 색채 속성을 각각 제어하여 정신물리학 실험을 진행하고 이를 분석하였다. 본 연구에서는 진행된 실험 결과를 분석하여 다크 모드와 라이트 모드에서 색채 인지에 차이가 있는지 알아보고 색채 인지 특성에 대한 기초 연구 자료로써 유의미 여부를 정의한 후 향후 연구방향을 제시한다.

• Nuclear Engineering and Technology
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• 제55권7호
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• pp.2656-2661
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• 2023

The project of China initiative Accelerator Driven Subcritical (CiADS) system has been started to construct in southeast China's Guangdong province since 2019, which is expected to be checked and accepted in the year 2025. In order to make the students in University of Chinese Academy of Sciences (UCAS) better understand the main characteristic and the operation condition in the subcritical nuclear facility, the training platform for CiADS has been developed based on the Cave Automatic Virtual Environment (CAVE) in the Institute of Modern Physics Chinese Academy of Sciences (IMPCAS). The CAVE platform is a kind of non-head mounted virtual reality display system, which can provide the immersive experience and the alternative training platform to substitute the dangerous operation experiments with strong radioactivity. In this paper, the CAVE platform for the training scenarios in CiADS system has been presented with real-time simulation feature, where the required devices to generate the auditory and visual senses with the interactive mode have been detailed. Moreover, the three dimensional modeling database has been created for the different operation conditions, which can bring more freedom for the teachers to generate the appropriate training courses for the students. All the user-friendly features will offer a deep realistic impression to the students for the purpose of getting the required knowledge and experience without the large costs in the traditional experimental nuclear reactor.

• Wind and Structures
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• 제38권3호
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• pp.215-229
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• 2024

Guyed mast structures exhibit characteristics such as high flexibility, low mass, small damping ratio, and large aspect ratio, leading to a complex wind-induced vibration response mechanism. This study analyzed the time- and frequency-domain characteristics of the wind-induced response of a guyed mast structure using measured acceleration response data obtained from the Shenzhen Meteorological Gradient Tower (SZMGT). Firstly, 734 sets of 1-hour acceleration samples measured from 0:00 October 1, 2021, to 0:00 November 1, 2021, were selected to study the vibration shapes of the mast and the characteristics of the generalized extreme value (GEV) distribution. Secondly, six sets of typical samples with different vibration intensities were further selected to explore the Gaussian property and modal parameter characteristics of the mast. Finally, the modal parameters of the SZMGT are identified and the identification results are verified by finite element analysis. The findings revealed that the guyed mast vibration shape exhibits remarkable diversity, which increases nonlinearly along the height in most cases and reaches a maximum at the top of the tower. Moreover, the GEV distribution characteristics of the 734 sets of samples are closer to the Weibull distribution. The probability distribution of the structural wind vibration response under strong wind is in good agreement with the Gaussian distribution. The structural response of the mast under wind loading exhibits multiple modes. As the structural response escalates, the first three orders of modal energy in the tower display a gradual increase in proportion.

• 한국광물학회:학술대회논문집
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• 한국광물학회.한국암석학회 2001년도 공동학술발표회 논문집
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• pp.75-75
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• 2001

We report Sr, Nd and Pb isotope data of clinopyroxene separates from ultramafic xenoliths and their host basaltic rocks in Jeju Island, Baekryeong Island, Boeun and Ganseong, Korea. The isotopic data of the xenoliths and host basalts are distinctly different from those of Korean basement rocks. Except for two xenoliths from Ganseong, all samples in this study have isotopic ratios within the combined range of MORB-OIB data. All basaltic rocks have Nd-Sr-Pb isotope compositions different from those of xenoliths, indicating that the host basaltic magma did not derive from the lithospheric mantle where the xenoliths originated. The range of isotopic composition of xenoliths is much greater than that observed in host basalts, which reflects small-scale heterogeneity of the lithospheric mantle. The greater isotopic heterogeneity of the lithospheric mantle probably reflects its long-term stability. The spinel peridotite xenolith data of Jeju Island, Baekryeong Island and Boeun display mixing hyperbolas between DMM and EM II end members. Since Jeju basalts have EM II-like isotopic signature, the mixing relationship shown by the isotopic data of the Jeju xenoliths can be interpreted as the result of infiltration of metasomatic fluid or melt derived from basaltic magma into DMM-like lithospheric mantle. In contrast to other xenolith sites, the Ganseong xenoliths are dominantly clinopyroxene megacryst and pyroxenite. Clinopyroxene megacrysts have different isotopic ratios from their host basalt, reflecting its exotic origin. Two Ganseong xenoliths (wherlite and clinopyroxenite) have much enriched Sr and Nd isotopic ratios and Nd model ages of 2.5-2.9 Ga, and plot in an array away from the MORB-OIB field. The mantle xenoliths from Korean Peninsula have similar $\^$87/Sr/$\^$86/Sr,$\^$143/Nd/$\^$144/Nd and $\^$207/Pb/$\^$204/Pb ratios to, but higher $\^$208/Pb/$\^$204/Pb ratios than, those from eastern China, indicating that Korean xenoliths are derived from the lithospheric mantle with higher Th/U ratio compared with Chinese ones. The isotopic data of xenolith-bearing basalts of Baekryeong Island and Ganseong, along with Ulreung and Dok Islands, show a mixing trend betlveen DMM and EM I in Sr-Nd-Pb isotopic correlation diagrams, which is also observed in tile northeastern Chinese basalts. However, the Jeju volcanic rocks show an EM II signature that is observed in southeastern Chinese basalts. The isotopic variations in volcanic rocks from the northern and southern portions of the East Asia reflect a large-scale isotopic heterogeneity in their source mantle.

• 방송공학회논문지
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• 제17권2호
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• pp.400-410
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• 2012

최근 3D 영화를 시작으로 TV, 휴대전화, PC 게임 등 다양한 분야에서 3D 영상을 접할 수 있다. 3D 영상은 기존의 2D 영상에서 볼 수 없었던 깊이감이라는 새로운 정보를 제공하여 영상의 실감을 극대화 할 수 있지만, 시각피로 혹은 영상의 왜곡과 같은 단점도 가지고 있다. 본 연구는 3D 디스플레이에서 대상의 깊이에 따라 달라지는 크기지각의 예측함수를 개발하였다. 실험 1에서 참가자들은 물리적으로 고정된 크기의 3D 사각형을 관찰하면서, 그 크기와 동일하게 2D 사각형의 크기를 조절하는 과제를 수행하였다. 반대로, 실험 2에서 참가자들은 물리적으로 고정된 크기의 2D 사각형을 관찰하면서, 3D 사각형의 크기를 조절하는 과제를 수행하였다. 실험 1과 2에서 모두 3D 사각형의 깊이에 따라 크기지각이 선형적으로 변화함을 관찰하였으며, 두 실험에서 획득한 깊이와 크기지각의 선형함수는 동일하였다. 본 연구에서 획득한 예측함수는 깊이에 따라 대상의 크기가 어떻게 지각되는지를 미리 예측할 수 있으므로 3D 영상제작에서 매우 유용할 것이다.

• 한국해양학회지
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• 제22권1호
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• pp.1-8
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• 1987

신양리층은 제주도 성산반도 주변에 발달된 층으로 주로 화산쇄설물, 현무암 역, 패각편으로 이루어져 있으며, 퇴적구조, 주직 및 퇴적물의 성분을 중심으로 암상 을 분류한 결과위로 가면서 평행층리 사암상(I), 역암상(II), 사층리 사암상(III)으 로 구분되었다. (암상 I)은 조립질 박층과 세립질 박층이 규칙적으로 반복 교호하 는 쇄기모양 및 평행층리를 보여주며 이는 foreshore 퇴적환경의 특징적인 퇴적구조 이다. 본 암상의 입자들을 다른 두 암상에 비해 양호한 원마도와 분급도를 보이며 부분적으로 역분급층리를 보인다. (암상 II)는 clast-supported하고 매우 불량한 분 급도의 현무암 역으로 이루어져 있으며 신앙리해변을 따라 연속되어 노출되어 있 다. 역 사이의 공간을 주로 화산쇄설물과 원마도가 양호한 소량의 패각쇄설물로 채 워져 있다. 현무암 역의 크기 감소뿐만 아니라 최대 층후도 남쪽(신양리)으로 가면 서 줄어든다. 이 암상 하부에 는 직 하부의 (암상 I)로부터 기원한 커다란 판상의 역이층리면에 평행하게 누워 있으며 역의 크기는 다양하고 불규칙하며 어떤 지역적 인 방향성을 보이지 않는다. 이는 원지(in-situ) 침식잔류 역으로 판단된다. 따라서 현무암역은 해수면의 상대적인 상승으로 인한 해빈잔류역으로 이역들을 부분적으로 연안류와 파랑에너지의 영향을 받았을 것으로 판단된다. (암상 II)의 상부에 발달한 남쪽으로 경사하는 사층리는 연안류의 존재와 방향을 알려준다. (암상 III)은 세립내 지 중립사 크기의 주로 화산쇄설물로 이루어진 암상으로 상부 내해안(upper shoref ace)의 특징인 육지와 바다쪽으로 경사하는 bidirectional trough cross-stratification 과 파랑물결구조가 나타난다. 전반적으로 신양리층은 foreshore에서 상부내해안에 이르는 환경에서 퇴적되었으며 (암상 I)과 (암상 II)사이에는 소규모의 부정합이 존재한다.

• Asian-Australasian Journal of Animal Sciences
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• 제14권6호
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• pp.880-884
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• 2001

Rumen microbiology research has undergone several evolutionary steps: the isolation and nutritional characterization of readily cultivated microbes; followed by the cloning and sequence analysis of individual genes relevant to key digestive processes; through to the use of small subunit ribosomal RNA (SSU rRNA) sequences for a cultivation-independent examination of microbial diversity. Our knowledge of rumen microbiology has expanded as a result, but the translation of this information into productive alterations of ruminal function has been rather limited. For instance, the cloning and characterization of cellulase genes in Escherichia coli has yielded some valuable information about this complex enzyme system in ruminal bacteria. SSU rRNA analyses have also confirmed that a considerable amount of the microbial diversity in the rumen is not represented in existing culture collections. However, we still have little idea of whether the key, and potentially rate-limiting, gene products and (or) microbial interactions have been identified. Technologies allowing high throughput nucleotide and protein sequence analysis have led to the emergence of two new fields of investigation, genomics and proteomics. Both disciplines can be further subdivided into functional and comparative lines of investigation. The massive accumulation of microbial DNA and protein sequence data, including complete genome sequences, is revolutionizing the way we examine microbial physiology and diversity. We describe here some examples of our use of genomics- and proteomics-based methods, to analyze the cellulase system of Ruminococcus flavefaciens FD-1 and explore the genome of Ruminococcus albus 8. At Illinois, we are using bacterial artificial chromosome (BAC) vectors to create libraries containing large (>75 kbases), contiguous segments of DNA from R. flavefaciens FD-1. Considering that every bacterium is not a candidate for whole genome sequencing, BAC libraries offer an attractive, alternative method to perform physical and functional analyses of a bacterium's genome. Our first plan is to use these BAC clones to determine whether or not cellulases and accessory genes in R. flavefaciens exist in clusters of orthologous genes (COGs). Proteomics is also being used to complement the BAC library/DNA sequencing approach. Proteins differentially expressed in response to carbon source are being identified by 2-D SDS-PAGE, followed by in-gel-digests and peptide mass mapping by MALDI-TOF Mass Spectrometry, as well as peptide sequencing by Edman degradation. At Ohio State, we have used a combination of functional proteomics, mutational analysis and differential display RT-PCR to obtain evidence suggesting that in addition to a cellulosome-like mechanism, R. albus 8 possesses other mechanisms for adhesion to plant surfaces. Genome walking on either side of these differentially expressed transcripts has also resulted in two interesting observations: i) a relatively large number of genes with no matches in the current databases and; ii) the identification of genes with a high level of sequence identity to those identified, until now, in the archaebacteria. Genomics and proteomics will also accelerate our understanding of microbial interactions, and allow a greater degree of in situ analyses in the future. The challenge is to utilize genomics and proteomics to improve our fundamental understanding of microbial physiology, diversity and ecology, and overcome constraints to ruminal function.