• Journal of the Ergonomics Society of Korea
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• v.34 no.5
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• pp.447-454
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• 2015

Objective: The purposes of this study are to survey general and ergonomics relevant patents of major foreign countries, to classify the ergonomics patents into some categories frequently found in the patents lists surfed and to compare the results with those of Korea. Background: Under today's severe competitions between countries and between companies, the intellectual property has never been more important. It is needed to investigate Korea's positions and worldwide status of patent applications and grants for general and ergonomics patents. Method: This study was mainly based on relevant websites surfing such as KIPRIS, FPO, EPO, WIPO, etc. Results: The results showed that while Korea placed fourth in patent applications and grants in 2012, following US, Japan and China, Korea ranked seventh in the number of ergonomics patents. Of the overseas ergonomics patents, the proportion of tool/device was the second highest to category of others, followed by chair/desk, grip/handle and keyboard, etc. Compared to the overseas ergonomics patents, Korea showed a slightly different trend that there were less patents for specific fields of ergonomics such as grip/handle, keyboard, tool/device, etc. Conclusion: The number of ergonomics patents of Korea was behind most foreign countries surveyed in the number of patent applications and grants of, and there were many categories of overseas ergonomics patents. Application: This study would be used as a reference or guideline when developing varying ergonomic products or applying to ergonomics patents.

• Journal of the Ergonomics Society of Korea
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• v.33 no.5
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• pp.387-394
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• 2014

Objective: The purpose of this study is to survey trend and the real state of ageing population in UK, and its charge organizations, relevant policies and studies. Background: As in other countries, UK population is ageing and people aged 65 or over account for about 17% of population in UK. Considering this ageing population, there are varying basic studies and policies for older people in UK. Method: First, the author consulted ageing and its policies in UK with some faculties in an UK university. Next, based on the results of consultation, wide literature survey was conducted, which includes papers in relevant academic journals, publications and website surfing. Results: A number of basic studies for surveying status and characteristics of older people as well as simple population trend for them have been conducted in UK. Healthcare services are free for all UK residents, and varying social care services including equipment, home and residential cares, financial support, etc., are provided by local governments. Cost of social cares is means-tested and is not free for everyone. There are a number of governmental or non-profit organizations dedicated to help older people access social care services or to financially fund research projects older people. Conclusion: There are more basic studies, and healthcare and social care services for older people in UK, compared to Korea. Application: It would be useful as basic data for establishing effective polices for old people in Korea.

• Journal of the Ergonomics Society of Korea
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• v.36 no.3
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• pp.255-265
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• 2017

Objective: This study aims to survey visual search performance models to assess and predict individual's visual tasks in everyday life and industrial sites. Background: Visual search is one of the most frequently performed and critical activities in everyday life and works. Visual search performance models are needed when designing or assessing the visual tasks. Method: This study was mainly based on survey of literatures related to ergonomics relevant journals and web surfing. In the survey, the keywords of visual search, visual search performance, visual search model, etc. were used. Results: On the basis of the purposes, developing methods and results of the models, this study categorized visual search performance models into six groups: probability-based models, SATO models, visual lobe-based models, computer vision models, neutral network-based models and detection time models. Major models by the categories were presented with their advantages and disadvantages. More models adopted the accuracy among two factors of accuracy and speed characterizing visual tasks as dependent variables. Conclusion: This study reviewed and summarized various visual search performance models. Application: The results would be used as a reference or tool when assessing the visual tasks.

• Journal of the Korean Society of School Health
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• v.20 no.2
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• pp.35-46
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• 2007

Purpose: To investigate the sexuality awareness of elementary school students according to viewing internet obscenity. Methods: The subject of this study was total 594 students of 6th grade at 3 primary schools in Gyunggi-do. The data were collected through a self-reporting questionnaire from December, 11 to December, 18, 2006. Results: 1. 19.2°% of respondents viewed internet obscenity. As for the first time they viewed it, 41.2% of respondents was when they were 6th grade students. Fifty percents of respondents viewed intemet obscenity accid ntly while surfing through the internet. As for the places where they viewed internet obscenity, 59.6% of respondents was at their house. Fifty percents of respondents answered that they felt no feeling after they viewed internet obscenity. There was a significant difference in viewing intemet obscenity according to gender. 2. The mean score of sexuality awareness was 46.4. There were significant differences in sexuality awareness according to gender, school record, and understanding about prohibition of the teenagers' viewing internet obscenity. Conclusion: We should provide lower grade students health education on internet obscenity preventive program at the home and school.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.12 no.9
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• pp.4560-4575
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• 2018

Since smartphone contains various personal data, security is one of the important aspects in smartphone technologies. Up to now, various authentication techniques have been proposed to protect smartphones. The pattern lock on the Android system is one of the most widely used authentication methods for low-cost devices but it is known to be vulnerable to smudge attack or shoulder surfing attack. LG's smartphone uses its own technique, which is called "Knock Code." The knock code completes the authentication by touching the user defined area in turn on the screen. In this paper, we propose the new, enhanced version of knock code by adding the sliding operation and by using flexible area recognition. We conducted security analysis, which shows that under the same password size, the search space is overwhelmingly larger than the original algorithm. Also, by using the sliding operation, the proposed scheme shows resilience against smudge attacks. We implemented the prototype of our scheme. Experimental results show that compared with the original Knock Code and Android pattern lock, our scheme is more convenient while providing better security.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2008.04a
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• pp.231-234
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• 2008

Each corporation isn't consistent because of offering specific information for publicity. It spends considerable labor force and time surfing of the material information and choosing need material. That's the reason it's different with material information and choice system between production and marketing corporation. Among lots of material information, some of them are used by offering material information simplify. So it is demanded necessity of reasonable material choice system. That system helps it choose a material more easily. So we studied about the information retrieval system of reasonable material choice through the study about assortment system of material information and material choice method. It's the basic study for the suggestion of reasonable material choice system. According to this study, if that system is suggested and realized, we can overcome from the system of typical and repeatable at every course of architecture during several times. It will be helpful to increase about the productivity of architecture as the minimization of time, labor, resource and cost for the material choice.

• Journal of the Ergonomics Society of Korea
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• v.32 no.4
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• pp.309-319
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• 2013

Objective: The aim of this study is to review and summarize human vibration measurement process, and necessity and methods of frequency weightings for human vibration. Background: Prolonged human exposure to hand-arm vibration and whole-body vibration can result in a range of adverse conditions and the development of occupational diseases such as vibration white finger. For preventing these adverse effects, it is important to correctly apply human vibration measurement process. Method: This manuscript was based on the review and summary of mechanical and human vibration relevant texts, academic papers, materials obtained through web surfing. Results: This manuscript summarizes human vibration measurement process described in ISO standards and relevant texts. The sensitivity of the human body to mechanical vibration is known to be dependent on both the frequency and direction of vibration. To take this into account, varying frequency weighting functions have been developed, and RMS frequency-weighted accelerations are used as the most important quantity to evaluate the effects of vibration on health. ISO provided nine frequency weighting functions in the form of curves and tables. Researches on frequency weightings are focused on development and validation of new frequency weightings to truly reflect the relationship between vibration exposure and its adverse effects. Application: This would be useful information for systematically applying human vibration measurement and analysis process, and for selecting appropriate frequency weighting functions.

• Journal of The Korean Association of Information Education
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• v.10 no.3
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• pp.425-434
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• 2006

This study designed and implemented differentiated web courseware for ICT education based on the analysis of the contents of the guidelines for information and communications technology education in elementary schools. The web courseware was designed to provide students with self-directed, differentiated learning in ICT education. The contents of the courseware consist of 'understanding of the computer,' 'mouse and keyboard,' and 'surfing on the Internet.' Each of the contents includes diagnostic and formative evaluations so that students can select their own learning activities of the beginning, intermediate, and advanced levels. The web courseware is expected to be used as self-directed learning materials for ICT education through learner-centered differentiated learning activities.

• The Research Journal of the Costume Culture
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• v.5 no.2
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• pp.217-244
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• 1997

This study is about the Korean Jockey's uniform, etc. and horse riding costume as the traditional riding culture grows. I studied informations from the Korea Racing Association's equestrian park, equine museum and Seoul Racecourse Trainers & Jockey's Association. The international regulations of riding costume are compared with Korean regulations, and I consulted some reference books, materials of sports wear and catalogues of some brands regarding horse equipment. The contents includes ; 1. Analysis of informations about horse racing 2. Study of racing, for detail comparative analysis on the following aspects ; -Symbolism, riding costume of jockey, that is, color·pattern·and some formal designs. 3. Suggestion for reasonable and fashionable riding costumes. In the aspects of design, there have not been any historical records, and material adjustments about riding costume in Korea. Therefore we should make more efforts to do developing our traditional costume culture. The result o this study is as follows ; 1. Riding is the sport of etiquette and manners. 2. Most of riding wears are the casual wear centered foreign licenced brands. 3. Study and investment upon specialized material development and processing technology are in demand 4. The need of the consumers are to be satisfied by the quality improvement of the native products design. In addition, we perform to horse racing which is fine play and leisure sports in current society. The horse riding will be a popular sports such as golf, wind surfing, skiing, etc. with the period including lots of kinds of leisure.

• Journal of the Korea Safety Management & Science
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• v.19 no.2
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• pp.81-93
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• 2017

This study aims to investigate laws and standards(including technical guidelines) related to safety criteria for 22 kitchen machines frequently used in commercial kitchens. The study was based on literature survey, interviews with charge persons in kitchen machines manufacturing companies, cafeteria providing group meals and relevant association, and web surfing. The results showed that there are two types of safety criteria such as legally forced ones by laws and optional ones by national industrial standards or technical guidelines. High pressure safety control act, safety control and business of liquefied petroleum gas act and city gas business act prescribed gas use apparatus safety criteria, rational energy utilization act did those of pressure vessel such large rotary caldron, industrial health and safety act did those of food processing machinery, and electrical appliances safety control act did those of electrical kitchen appliances. Compulsory or optional standards or guidelines related to safety criteria for kitchen machines were presented by 22 kitchen machines. Safety devices shown in the laws, standards and guidelines were also summarized by kitchen machines and their risk factors.