• Title/Summary/Keyword: Specialized Research Domain

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An Empirical Study on the Job Satisfaction of Hotel Employees -Focusing on the Six super-deluxe hotels in Seoul- (호텔 종사원의 직무만족요인에 관한 실증 연구 -서울지역 특1급 호텔을 중심으로-)

  • 김정만
    • Journal of Applied Tourism Food and Beverage Management and Research
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    • v.9
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    • pp.93-116
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    • 1998
  • In the 21st century the service industry, particularly the hospitality industry, has the potential to develop into its golden age. In preparation for this hotels must maximize management proficiency by introducing reasonable and scientific systems into their current operations. The hotel industry takes it for granted that it can meet the final business goal by way of effective management of human resources. However, comprehensive papers on the subject of employee satisfaction have not appeared or been presented in Korean business studies. And although papers from abroad have touched on the subject they are not focused on the specialized domain of human resources as it applies to the comprehensive matters relating to job satisfaction as a corelationship to business success. This study focuses on some problems that must be overcome in achieving business objectives while striving at the same time to maintain satisfaction. The purpose of this study is to find the factors that measure employee job satisfaction in the hotel industry. To establish the purpose I reviewed the definition of the job satisfaction. An antecedent study of job satisfaction and Questionnaires were used to acquire data, specifically, hotel employees were selected randomly from the six super-deluxe hotels in Seoul to respond to thorough questionnaires. As a result of the study on the variables of Sex, Position, Length of Service, Opportunity for Promotion, Working Conditions, Wages and Hotel Situation. As a whole, promotional opportunity, wages and working conditions were frequently cited as negative factors in the responses. A comprehensive approach that includes improving wages and that reflects management's sincere concern with the working conditions of the employees is urgently needed. Hotel management that is willing to examine employee satisfaction periodically and provide proper solutions can prevent dissatisfied employees from separating from their jobs. This study has some limitation in that it is restricted geographically and in research method. That is, only six super-deluxe hotels in Seoul were selected as the subject of study and only the questionnaire method of obtaining data was used out of various available research methods.

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Case Study on AUTOSAR Software Functional Safety Mechanism Design: Shift-by-Wire System (AUTOSAR 소프트웨어 기능안전 메커니즘 설계 사례연구: Shift-by-Wire 시스템)

  • Kum, Daehyun;Kwon, Soohyeon;Lee, Jaeseong;Lee, Seonghun
    • IEMEK Journal of Embedded Systems and Applications
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    • v.16 no.6
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    • pp.267-276
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    • 2021
  • The automotive industry and academic research have been continuously conducting research on standardization such as AUTOSAR (AUTomotive Open System ARchitecture) and ISO26262 to solve problems such as safety and efficiency caused by the complexity of electric/electronic architecture of automotive. AUTOSAR is an automotive standard software platform that has a layered structure independent of MCU (Micro Controller Unit) hardware, and improves product reliability through software modularity and reusability. And, ISO26262, an international standard for automotive functional safety and suggests a method to minimize errors in automotive ECU (Electronic Control Unit)s by defining the development process and results for the entire life cycle of automotive electrical/electronic systems. These design methods are variously applied in representative automotive safety-critical systems. However, since the functional and safety requirements are different according to the characteristics of the safety-critical system, it is essential to research the AUTOSAR functional safety design method specialized for each application domain. In this paper, a software functional safety mechanism design method using AUTOSAR is proposed, and a new failure management framework is proposed to ensure the high reliability of the product. The AUTOSAR functional safety mechanism consists of memory partitioning protection, timing monitoring protection, and end-to-end protection. The fault management framework is composed of several safety SWCs to maintain the minimum function and performance even if a fault occurs during the operation of a safety-critical system. Finally, the proposed method is applied to the Shift-by-Wire system design to prove the validity of the proposed method.

Development of User-friendly Modeling Interface for Process-based Total System Performance Assessment Framework (APro) for Geological Disposal System of High-level Radioactive Waste (고준위폐기물 심층처분시스템에 대한 프로세스 기반 종합성능평가 체계(APro)의 사용자 친화적 모델링 인터페이스 개발)

  • Kim, Jung-Woo;Lee, Jaewon;Cho, Dong-Keun
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.17 no.2
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    • pp.227-234
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    • 2019
  • A user-friendly modeling interface is developed for a process-based total system performance assessment framework (APro) specialized for a generic geological disposal system for high-level radioactive waste. The APro modeling interface is constructed using MATLAB, and the operator splitting scheme is used to combine COMSOL for simulation of multiphysics and PHREEQC for the calculation of geochemical reactions. As APro limits the modeling domain to the generic disposal system, the degree of freedom of the model is low. In contrast, the user-friendliness of the model is improved. Thermal, hydraulic, mechanical and chemical processes considered in the disposal system are modularized, and users can select one of multiple modules: "Default process" and multi "Alternative process". APro mainly consists of an input data part and calculation execution part. The input data are prepared in a single EXCEL file with a given format, and the calculation part is coded using MATLAB. The final results of the calculation are created as an independent COMSOL file for further analysis.

Convergence of Artificial Intelligence Techniques and Domain Specific Knowledge for Generating Super-Resolution Meteorological Data (기상 자료 초해상화를 위한 인공지능 기술과 기상 전문 지식의 융합)

  • Ha, Ji-Hun;Park, Kun-Woo;Im, Hyo-Hyuk;Cho, Dong-Hee;Kim, Yong-Hyuk
    • Journal of the Korea Convergence Society
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    • v.12 no.10
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    • pp.63-70
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    • 2021
  • Generating a super-resolution meteological data by using a high-resolution deep neural network can provide precise research and useful real-life services. We propose a new technique of generating improved training data for super-resolution deep neural networks. To generate high-resolution meteorological data with domain specific knowledge, Lambert conformal conic projection and objective analysis were applied based on observation data and ERA5 reanalysis field data of specialized institutions. As a result, temperature and humidity analysis data based on domain specific knowledge showed improved RMSE by up to 42% and 46%, respectively. Next, a super-resolution generative adversarial network (SRGAN) which is one of the aritifial intelligence techniques was used to automate the manual data generation technique using damain specific techniques as described above. Experiments were conducted to generate high-resolution data with 1 km resolution from global model data with 10 km resolution. Finally, the results generated with SRGAN have a higher resoltuion than the global model input data, and showed a similar analysis pattern to the manually generated high-resolution analysis data, but also showed a smooth boundary.

A case study on the costume making process of stop motion animation characters (스톱모션 애니메이션 캐릭터 의상제작과정에 관한 사례 연구)

  • Kim, Ki Hoon;Suh, Ji Sung
    • The Research Journal of the Costume Culture
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    • v.20 no.5
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    • pp.655-663
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    • 2012
  • Due to increased interest in character costumes, the field of animation character costume design is gradually developing into a specialized domain. The costume-making process for animation characters presents many differences from the costume-making process for regular apparel. However, there remains insufficient research on the actual process of making the character costumes used in stop motion videos both in Korea and abroad. The purpose of this study is to establish a costume design process for animation characters. Furthermore, this study presents a case study on the costume planning and making process for 3D stop motion animation characters. The character costume-making process was segmentalized into the following stages: character analysis stage, character modeling stage, and character costume making stage. In the character analysis stage, the investigator analyzed the character's movements, designed the character images, and analyzed the movements and motions of the animation characters. After completing character modeling, this study proposed a method for making the character costume. The style of the character costume was designed, and the structural design reflected the position and size of joints as well as the angle of movements. The patterns of the character costume were produced through dimensional tailoring after measuring the body size of the character. Afterward, the costume was completed after passing through the fitting and revision stages. The clothing material was selected to fit the colors and feelings shown in the illustration. To complete the costume after comparing it with the initial illustration, it was revised based on the assessment of its volume and overall atmosphere.

Research on Developing a Conversational AI Callbot Solution for Medical Counselling

  • Won Ro LEE;Jeong Hyon CHOI;Min Soo KANG
    • Korean Journal of Artificial Intelligence
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    • v.11 no.4
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    • pp.9-13
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    • 2023
  • In this study, we explored the potential of integrating interactive AI callbot technology into the medical consultation domain as part of a broader service development initiative. Aimed at enhancing patient satisfaction, the AI callbot was designed to efficiently address queries from hospitals' primary users, especially the elderly and those using phone services. By incorporating an AI-driven callbot into the hospital's customer service center, routine tasks such as appointment modifications and cancellations were efficiently managed by the AI Callbot Agent. On the other hand, tasks requiring more detailed attention or specialization were addressed by Human Agents, ensuring a balanced and collaborative approach. The deep learning model for voice recognition for this study was based on the Transformer model and fine-tuned to fit the medical field using a pre-trained model. Existing recording files were converted into learning data to perform SSL(self-supervised learning) Model was implemented. The ANN (Artificial neural network) neural network model was used to analyze voice signals and interpret them as text, and after actual application, the intent was enriched through reinforcement learning to continuously improve accuracy. In the case of TTS(Text To Speech), the Transformer model was applied to Text Analysis, Acoustic model, and Vocoder, and Google's Natural Language API was applied to recognize intent. As the research progresses, there are challenges to solve, such as interconnection issues between various EMR providers, problems with doctor's time slots, problems with two or more hospital appointments, and problems with patient use. However, there are specialized problems that are easy to make reservations. Implementation of the callbot service in hospitals appears to be applicable immediately.

Developmental Patterns of mST3GaIV mRNA Expression in the Mouse: In Situ Hybridization using DIG-labeled RNA Probes

  • Ji, Min-Young;Lee, Young-Choon;Do, Su-Il;Nam, Sang-Yun;Jung, Kyu-Yong;Kim, Hyoung-Min;Park, Jong-Kun;Choo, Young-Kug
    • Archives of Pharmacal Research
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    • v.23 no.5
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    • pp.525-530
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    • 2000
  • mST3GaIV synthesizes ganglioside GM3, the precursor for simple and complex a- and b- series gangliosides, and the expression and regulation of mST3GaIV (CMP-NeuAc: lactosylceramide $\alpha$2,3-sialyltransferase) activity is central to the production of almost all gangliosides, a class of glycosphingolipids implicated in variety of cellular processes such as transmembrane signaling, synaptic transmission, specialized membrane domain formation and cell-cell interactions. To understand the developmental expression of mST3GaIV in mice, we investigated the spatial and temporal expression of mST3GaIV mRNA during the mouse embryogenesis [embryonic (E) days; 19, E11, E13, E15] by in situ hybridization with digoxigenin-labeled RNA probes. All tissues from 19 and E11 were positive for mST3GaIV mRNA. On E13, mST3GaIV mRNA was expressed in various neural and non-neural tissues. In contrast to these, on E15, the telencephalon and liver produced a strong expression of mST3GaIV which was a quite similar to that of E13. In this stage, mST3GaIV mRNA was also expressed in some non-neural tissues. These data indicate that mST3GaIV is differently expressed at developmental stages of embryo, and this may be importantly related with regulation of organogenesis in mice.

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Transcriptional Profiles of Imprinted Genes in Human Embryonic Stem Cells During In vitro Differentiation

  • Park, Sang-Wook;Do, Hyo-Sang;Kim, Dongkyu;Ko, Ji-Yun;Lee, Sang-Hun;Han, Yong-Mahn
    • International Journal of Stem Cells
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    • v.7 no.2
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    • pp.108-117
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    • 2014
  • Background and Objectives: Genomic imprinting is an inheritance phenomenon by which a subset of genes are expressed from one allele of two homologous chromosomes in a parent of origin-specific manner. Even though fine-tuned regulation of genomic imprinting process is essential for normal development, no other means are available to study genomic imprinting in human during embryonic development. In relation with this bottleneck, differentiation of human embryonic stem cells (hESCs) into specialized lineages may be considered as an alternative to mimic human development. Methods and Results: In this study, hESCs were differentiated into three lineage cell types to analyze temporal and spatial expression of imprinted genes. Of 19 imprinted genes examined, 15 imprinted genes showed similar transcriptional level among two hESC lines and two human induced pluripotent stem cell (hiPSC) lines. Expressional patterns of most imprinted genes were varied in progenitors and fully differentiated cells which were derived from hESCs. Also, no consistence was observed in the expression pattern of imprinted genes within an imprinting domain during in vitro differentiation of hESCs into three lineage cell types. Conclusions: Transcriptional expression of imprinted genes is regulated in a cell type- specific manner in hESCs during in vitro differentiation.

Chromosomal Localization and Mutation Detection of the Porcine APM1 Gene Encoding Adiponectin (Adiponectin을 암호화하는 돼지 APM1 유전자의 염색체상 위치파악과 돌연변이 탐색)

  • Park, E.W.;Kim, J.H.;Seo, B.Y.;Jung, K.C.;Yu, S.L.;Cho, I.C.;Lee, J.G.;Oh, S.J.;Jeon, J.T.;Lee, J.H.
    • Journal of Animal Science and Technology
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    • v.46 no.4
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    • pp.537-546
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    • 2004
  • Adiponectin is adipocyte complement-related protein which is highly specialized to play important roles in metabolic and honnonal processes. This protein, called GBP-28, AdipoQ, and Acrp30, is encoded by the adipose most abundant gene transcript 1 (APM1) which locates on human chromosome 3q27 and mouse chromosome 16. In order to determine chromosomal localization of the porcine APM1, we carried out PCR analysis using somatic cell hybrid panel as well as porcine whole genome radiation hybrid (RH) panel. The result showed that the porcine APM1 located on chromosome 13q41 or 13q46-49. These locations were further investigated with the two point analysis of RH panel, revealed the most significant linked marker (LOD score 20.29) being SIAT1 (8 cRs away), where the fat-related QTL located. From the SSCP analysis of APM1 using 8 pig breeds, two distinct SSCP types were detected from K~ native and Korean wild pigs. The determined sequences in Korean native and Korean wild pigs showed that two nucleotide positions (T672C and C705G) were substituted. The primary sequence of the porcine APM1 has 79 to 87% identity with those of human, mouse, and bovine APM1. The domain structures of the porcine APM1 such as signal sequence, hypervariable region, collagenous region. and globular domain are also similar to those of mammalian genes.

Study on Developmental Strategy of National Defense & IT Convergence (국방IT융합기술의 발전전략에 관한 연구)

  • Koo, Han Lim;Kim, Seong Min;Rhee, Woo Seop
    • Convergence Security Journal
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    • v.14 no.6_1
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    • pp.99-112
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    • 2014
  • National Defense & IT Convergence is ensuring actual force integration by developing new IT Convergence Technology for the purpose of realizing the concept of Network Centric Warfare. The Ministry of Defense has appointed National Defense & IT Convergence Center of Defense Agency for Technology and Quality as a specialized agency for the National Defense & IT Convergence development, a mission in the creative economy era and has been active in military demand inquiry and prior technology plan with the industrial-academic research institute for discovery of National Defense IT Convergence projects based on the Convergence Center. Further, it is promoting focused on the timely introduction of private IT new technology by operating the project planning team comprised of defense domain specialists and by applying the advanced planning method etc. Accordingly, for the development of National Defense & IT convergence, developmental strategy is urgently required to be utilized effectively after considering theoretically on the national IT Convergence policy enforcement and phenomenon of National Defense & IT Convergence technology and analyzing them comprehensively. This thesis promotes in phases the IT Convergence projects which are identified for the development, improves the efficiency of newly created National Defense & IT Convergence center and suggests training program of IT Convergence personnel related to the defense reforms. With such, it will achieve smart defense in advance and will also contribute largely for the realization of the immediate paradigm shift and of the creative economy.