• Proceedings of the Korea Society for Industrial Systems Conference
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• 2003.11a
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• pp.333-351
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• 2003

90년대 말부터 새로운 지식정보국가의 패러다임으로 세계 각국은 ‘모바일, 브로드밴드, 극소형 컴퓨터, IPv6’의 기술이 창출해내는 컴퓨팅의 실체를 유비쿼터스 컴퓨팅으로 파악하고 각 국의 정부, 기업, 연구소들이 주도권을 잡기 위해 많은 노력을 기울이고 있다. 과거 30여년 동안 국내 기간 시설로 잘 구축된 유. 무선 통신환경은 유비쿼터스 정보통신이 바로 미래의 국가적 운영을 결정 짓는 초석이 될 것이다. 그러나, 유비쿼터스시대의 구현은 기술적인 발전으로 완성되는 것이 아닌 기초, 기반, 요소, 응용 서비스들이 효율적인 구축이 되어야 가능하다. 현째 까지는 IT 기술의 발전에 관한 연구들은 많이 진행되었지만, 시장의 수용과 관련된 사업적 상용화에 대한 연구들은 다소 부족한 것이 현실이다. 본 연구는 유비쿼터스 컴퓨팅 기술 기반과 서비스 IT 기술 개발 분류와는 구별되는 마케팅 /고객 관점에서의 유비쿼터스 컴퓨팅 환경의 재 분류를 시도하였다. 즉, 유비쿼터스 네크워킹 환경에서의 마케팅 환경변화의 단계를 설정하였고, 그에 대한 가상 시나리오 및 예측을 제안했다. 또한, 이렇게 분류한 유비쿼터스 환경이 소비자의 구매의사결정단계 (구매 전, 정보수집, 대안평가, 구매결정, 구매 후 행동)에 어떻게 영향을 미치고있는지에 대한 분석과 사례를 제시하였다. 특히 유비쿼터스 환경이 구매의사결정단계에서 각 단계의 축소/압축의 형태에 대해서 집중 조명하였다. 이를 토대로 유비쿼터스 환경에서 기업의 마케팅 및 고객관리의 변화와 대응에 대해 제언하였다.

• Journal of Sensor Science and Technology
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• v.19 no.3
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• pp.238-245
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• 2010

Stroke patients can't use their hands because of the paralysis of their fingers. Their fingers are recovered by rehabilitating training, and the rehabilitating extent can be judged by grasping a spherical object. At present, the object used in hospital is only a spherical object, and can't measure the force of fingers. Therefore, doctors judge the rehabilitating extent by touching and watching at their fingers. So, the spherical object measuring system which can measure the force of their fingers should be developed. In this paper, the finger-force measuring system with a three-axis force sensor which can measure the spherical-object grasping force is developed. The three-axis force sensor is designed and fabricated, and the force measuring device is designed and manufactured using DSP(digital signal processing). Also, the grasping force test of men is performed using the developed finger-force measuring system, it was confirmed that the average force of men was about 120 N.

• Korean Journal of Applied Biomechanics
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• v.13 no.1
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• pp.51-62
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• 2003

This study was attempted to kinematical characteristics of the El-grip swing with 1turn to el-grip in elite horizontal bar for the purpose of improving performance. The subjects were three males who were 2002 Busan Asian Games in men's team. The three dimensional motion analysis with DLT method was executed using three video cameras of analyzing the actual competition situation. In point of analyzing the actual competition situation, it is expected that gymnastics and coaches have the effective informations, and the following conclusion had resulted. 1. In case of release, It is impotant to make fast horizontal velocity of CM, high vertical position of CM, large hip and shoulder angle. Also It should be performed release motion of trunk rotation angle(+). 2. During LHR the action should be made at higher position than the CM and the shoulder joint is moving within $127{\pm}16.82$. It is important to make large lunk rotation angle. 3. During Hop, the RHR motion should be done in high position with short time and fast twisting action and to reduce the vertical speed is important.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.5 no.5
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• pp.466-470
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• 2004

The purpose of the study is to propose the way to activate title insurance in Korea. Title insurance in Korea is at first stage in development cycle. Companies which handle title insurance mainly operate in the services related to real estate. Recently in Korea, Mortgage loan is introduced in market. Mortgage loans may give a new motive in title insurance market. In Korea, registration record in real estate does not prove real ownership and this point can make title insurance spread widely in property transaction. Title insurance offers financial protection against these and other covered title hazards. There are two basic kinds of title insurance: Lender or mortgagee protection, owner's coverage. For the prosperity of title insurance, We should decrease a financial fee, business cost and prepare a on-stop service in a real estate brokerage.

• Phonetics and Speech Sciences
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• v.13 no.2
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• pp.1-7
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• 2021

Speech is a spatiotemporally coordinated structure of constriction actions at discrete articulators such as lips, tongue tip, tongue body, velum, and glottis. Like other human movements (e.g., reaching), each action as a linguistic task is completed by a synergy of involved basic elements (e.g., bone, muscle, neural system). This paper discusses how speech tasks are dynamically related to joints as one of the basic elements in terms of robotics of speech production. Further this introduction of robotics to speech sciences will hopefully deepen our understanding of how speech is produced and provide a solid foundation to developing a physical talking machine.

• Journal of Biomedical Engineering Research
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• v.43 no.5
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• pp.299-307
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• 2022

In this paper, we propose a pre-processing method that converts to Spider Chart image data for classification of gripping movement using EMG (electromyography) sensors and Convolution Neural Networks (CNN) deep learning. First, raw data for six hand gestures are extracted from five test subjects using an 8-channel armband and converted into Spider Chart data of octagonal shapes, which are divided into several sliding windows and are learned. In classifying six hand gestures, the classification performance is compared with the proposed pre-processing method and the existing methods. Deep learning was performed on the dataset by dividing 70% of the total into training, 15% as testing, and 15% as validation. For system performance evaluation, five cross-validations were applied by dividing 80% of the entire dataset by training and 20% by testing. The proposed method generates 97% and 94.54% in cross-validation and general tests, respectively, using the Spider Chart preprocessing, which was better results than the conventional methods.

• Korean journal of applied entomology
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• v.62 no.4
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• pp.221-225
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• 2023

A female specimen of Sternuchopsis (s. str.) waltoni (Boheman, 1844), belonging to the tribe Mecysolobini (Curculionidae: Molytinae), was collected by beating method from Gadeok-do in Busan, the southern part of the Korean Peninsula. This weevil pest is designated as a quarantine pest under the Plant Quarantine Act (2019) in Korea. It is considered unreasonable to determine whether this species is an invasive or native species in Korea, as damage to crops has not been confirmed and there is no other collection information. This study aims to provide accurate diagnosis information including illustration and ecological information to gain more domestic occurrence information on this weevil.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.10 no.4
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• pp.267-272
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• 2016

In the era of ultra high speed information communication technology represented by Smart phone and Tablet PC, the disable and the aged people came to be in a position of so-called 'relatively weak people' in the field of information communication due to inconvenience of use and difference in information acquisition and processing ability. Thus, a survey was conducted on Smart phone accessibility items based on previous studies of the disabled with crippled disorder, brain lesions, myelopathy and muscular disabilities having more inconvenience relatively in their use of smart phone due to upper limb dysfunctions. Especially, people with upper limb dysfunctions with relatively weak grip had big inconvenience in the conditions of uses requiring actions such as grabbing and rotating the devices, and due to the characteristics of touch screen input method of Smart phone, they had big inconvenience due to a lack of a guidance for keyboard in input. As a result of questionnaires by the type of disability, it turned out that severe myelopathy causes the most inconvenience in using smart phone.

• Korean Journal of Optics and Photonics
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• v.25 no.6
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• pp.315-325
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• 2014

A combination of MHL and LED fish-luring light is used in this study. Its yield, characteristics, and irradiance distribution are evaluated and analyzed. To obtain an irradiance distribution similar to that of an MHL, we suggest the optimal arrangement of MHL and LED.

• Journal of the Korean Chemical Society
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• v.47 no.4
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• pp.401-411
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• 2003

One of the most important characteristics in the seventh educational course is an enforcement of differentiated level curriculum. Therefore, development of various different level educational subjects is needed. A new chromatographic experimental kit which is helpful for middle school students to understand chromatographic principles is needed to correct some mistakes of chromatographic part within the 6th educational course's middle school textbook. In this research, a new thin layer chromatography(TLC) experimental kit for middle school students are developed by using acid-base indicator as samples and ethyl alcohol, ethylacetate, hexane as eluents. The kit is applied to two kinds of middle school student groups(general group & genius group) and two kinds of teacher groups(science teacher & non-science teacher) and an efficacy of the new chromatographic kits are evaluated through making up some questions.