• Title, Summary, Keyword: sun protection use

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Sun Protection Factor (SPF) Assessment of the Sunscreen Composed of Natural Substances (천연물을 이용한 자외선차단제의 자외선차단지수(SPF) 평가)

  • Oh, In Young;Kim, So Young;Suk, Jang Mi;Jung, Sang Wook;Park, Jin Oh;Yoo, Kwang Ho;Li, Kapsok;Kim, Beom Joon;Kim, Myeung Nam
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.39 no.2
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    • pp.141-148
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    • 2013
  • The harmful effects of ultraviolet (UV) radiation by increasing sun exposure are making people use sunscreens casually. To keep pace with this trend, many researches about mixing different ingredients or extracting effective ingredients from natural materials are conducted by cosmetics industry. In the present study, we evaluated the UV blocking effect of the sunscreen containing Scutellaria baicalensis Georgi extract. 10 volunteers were measured by minimal erythema dose (MED) and sun protection factor (SPF) of each product. The SPF results were $34.52{\pm}2.13$ and $32.67{\pm}1.44$ in the sunscreen containing Scutellaria baicalensis Georgi extract and that of not containing the substance, respectively. Although the difference of SPF between two products was statistically not significant, it is thought to be meaningful in evaluating clinical effects of the sunscreen using natural substance to humans without any adverse reaction.

A Study on the protection of false alarm in the UV/IR flame detector (불꽃 감지기에서 오동작 방지에 관한 연구)

  • Lim, Byung-Hyun;Park, Sung-Jin;Lim, Jong-Yeon;Hwang, Jong-Sun;Kim, Young-Min
    • Proceedings of the KIEE Conference
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    • pp.209-212
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    • 2001
  • A flame detector responds either to radiant energy visible to the human eye or outside the range of human vision. Such a detector is sensitive to glowing embers, coals, or flames which radiate energy of sufficient intensity and spectral quality to actuate the alarm. An infra-red detectors can respond to the total IR component of the flame alone or in combination with flame flicker in the frequency range of 5 to 30 Hz. A major problem in the use of infrared detectors receiving total IR radiation is the possible interference of solar radiation in the infrared region. When detectors are located in places shielded from the sun, such as vaults, filtering or shielding the unit from the sun's rays is unnecessary. In this study, we proposed method for redue a false alarm with using filtering & sensor technology for distinguish of causes of raise a false alarm and pure flame.

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Introduction of Plant Variety Protection Right and Plant Patent System of Ornamental Crops in U.S.A (미국 화훼류 품종보호제도 및 식물특허 운영실태)

  • Lee, Ho-Sun;Choi, Keun Jin;Hwang, Suk-Jung
    • FLOWER RESEARCH JOURNAL
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    • v.16 no.4
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    • pp.325-332
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    • 2008
  • This paper outlines the system and operation of plant variety protection right and plant patent of ornamental crops in USA to guide for application of new varieties developed in Korea and to use for national examination of applied variety from USA. The Plant Variety Protection Act(PVPA) in USA is given as PVPR to the developers of new variety for the seed propagating crops and tubers and provides as plant patent for asexually reproducing crops. A certificate of PVPR and plant patent is awarded to an owner of a variety has shown that it is new, distinct from other varieties, genetically uniform and stable through successive generations by official evaluation without the growing trial. The term of protection for plant patent and PVPR for most crops is 20 years but 25 years for trees, shrubs, and vines. The application of ornamental variety in USA is mostly for plant patent. The application of ornamental crops accounted for 87% of total applications for plant patent. The ratio of new variety applications for plant patent from national and foreign countries is not significant differences.

The Characteristic of Media Consumer and Legal Principles for Consumer Movements Protection (언론소비자의 특성과 소비자운동의 보호법리 - 광고불매운동을 중심으로)

  • Lee, Seung-Sun
    • Korean journal of communication and information
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    • v.48
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    • pp.5-24
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    • 2009
  • This study is aimed to analyze the concept of media consumer and legal principles for consumer movements protection. Based on the concept and legal principles, this research is to review the characteristics of the advertisement boycott campaign. Article 124 of the Constitution prescribes that the state should guarantee the consumer protection movements. According to the Article 4 of the Framework Act on Consumer, consumers have the fundamental right to obtain proper compensation for damages sustained due to use of goods and etc. according to prompt and fair procedure. The type of boycott can be classified into two pattern on the basis of boycott's target or object. They are primary boycott and. secondary boycott. Consumer's boycott independent of primary or secondary, are under the protection of the consumer's right. Media consumers use scarce resources to satisfy their wants and needs to acquire news information and advertising information. Their resources are time and money. Therefore, ads boycott campaign or media boycott campaign is the primary boycott. Consumer's right should be guaranteed to the maximum. The Constitution and consumer protection law should protect the practice of consumer's right, especially consumer's boycott campaign.

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Failure Prediction of Metal Oxide Varistor Using Nonlinear Surge Look-up Table Based on Experimental Data

  • Kim, Young Sun
    • Transactions on Electrical and Electronic Materials
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    • v.16 no.6
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    • pp.317-322
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    • 2015
  • The metal oxide varistor (MOV) is a major component of the surge protection devices (SPDs) currently in use. The device is judged to be faulty when fatigue caused by the continuous inflow of lightning accumulates and reaches the damage limit. In many cases, induced lightning resulting from lightning strikes flows in to the device several times per second in succession. Therefore, the frequency or the rate at which the SPD is actually exposed to stress, called a surge, is outside the range of human perception. For this reason, the protective device should be replaced if it actually approaches the end of its life even though it is not faulty at present, currently no basis exists for making the judgment of remaining lifetime. Up to now, the life of an MOV has been predicted solely based on the number of inflow surges, irrespective of the magnitude of the surge current or the amount of energy that has flowed through the device. In this study, nonlinear data that shows the damage to an MOV depending on the count of surge and the amount of input current were collected through a high-voltage test. Then, a failure prediction algorithm was proposed by preparing a look-up table using the results of the test. The proposed method was experimentally verified using an impulse surge generator

Design of a Middleware for Android-based Smart Phone Applications (안드로이드 기반 스마트 폰 응용을 위한 미들웨어 설계)

  • Oh, Sun-Jin
    • The Journal of The Institute of Internet, Broadcasting and Communication
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    • v.12 no.2
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    • pp.111-117
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    • 2012
  • With the rapid growth of smart phone technologies, mobile user's demands for using services provided by existing web or portal cites are highly increased. These services, however, are designed for the environment of desktop PCs or laptops in general, so it requires lots of costs for corrections and has difficulties for system protection to use in current mobile devices. In this paper, we design and implement a middleware for android-based smart phone apps to cooperate with a portal system with minimum corrections and function configuration. Our middleware system is working as an interface between an existing portal system and mobile devices to provide harmonious usage and safe system protection.

A Authentication technique of Internal Information Hacking Protection based on H/W Information (H/W 정보의 인증을 통한 내부정보유출 방지 기법)

  • Yang, Sun Ok;Choi, Nak Gui;Park, Jae Pyo;Choi, Hyung Il
    • Journal of the Korea Society of Digital Industry and Information Management
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    • v.5 no.1
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    • pp.71-81
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    • 2009
  • To the cause of the development of IT technology and the Internet, information leakage of industry is also facing a serious situation. However, most of the existing techniques to prevent leakage of information disclosure after finding the cause of defense. Therefore, in this paper by adding information about the Hardware to offer a way to protect the information. User authentication information to access the data according to different security policies to reflect a little more to strengthen security. And the security agent for the data by using a log of all actions by the record was so easy to analyze. It also analyzes and apply the different scenarios possible. And the analysis of how to implement and how to block. The future without the use of security agents to be able to control access to data and H/W information will be updated for the study will be done.

Study of UV Protection, Deodorization and Antimicrobial Properties of Cotton Fabrics Dyed with the Liquids Extracted from Salvia Plebia R. Br. (곰보배추 추출물로 염색한 면직물의 자외선 차단율, 소취성 및 항균성)

  • Jang, Hyun-Joo;Jung, Jin-Soun
    • Fashion & Textile Research Journal
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    • v.18 no.3
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    • pp.380-386
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    • 2016
  • This study examined the stainability and functionality of cotton dyed with the extract of Salvia Plebia R. Br. as a research preceding the development of health functional materials and fashion products with a healing motif. The CIELAB measurements of the cotton fabric dyed with the extract of Salvia Plebia R. Br. showed 73.32 for $L^*$, 1.7 for $a^*$, and 37.78 for $b^*$, while the Munsell measurements exhibited 2.63Y in color, 7.18 of brightness, and 5.49 of chroma. The degree of staining resulting from color fastness to laundering, and that resulting from color fastness to perspiration (acid and alkaline), as well as the level of color fastness to crocking (wet and dry) all stayed between relatively higher levels of 4 and 5. The fabric dyed also exhibited SPF 50+, an outstanding sun blocking performance. The deodorization rate was also excellent, rising from 97% to over 99% when the time elapsed increased from 30 minutes to 120 minutes. The fabric dyed also showed a 99.6% antimicrobial activity against staphylococcus aureus ATCC 6538, and a 71.4% antimicrobial activity against Klebsiella pneumoniae ATCC 4352. The aforementioned findings indicate that fabrics dyed with the extract of Salvia Plebia R. Br. contain the potential to be developed for use as health-related materials and fashion products that promote healing.

Use of child safety seats during transportation of newborns

  • Kim, Seon Hyuk;Park, Sung Won;Lee, Yeon Kyung;Ko, Sun Young;Shin, Son Moon
    • Clinical and Experimental Pediatrics
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    • v.61 no.8
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    • pp.253-257
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    • 2018
  • Purpose: Child safety seats (CSS) are critical for the protection of children, in case of motor vehicle accidents. Although the national legislation mandates that all newborns must be placed in an appropriately installed CSS during transportation, people often do not perceive the importance of CSS and do not use it as recommended. The purpose of this survey was to understand the use of CSS for the safe transport of newborns from hospital to home. Methods: We interviewed parents of newborn infants, using a structured questionnaire, at the time of their discharge from Cheil General Hospital & Women's Health Care Center, between May 2014 and July 2014. Results: A total of 403 participants were interviewed. The rate of CSS use was only 14.9%. Overall, 76.4% of the families interviewed were not aware about the recommendations on CSS use for newborns when travelling in a car. The provision of education on using CSS significantly influenced their rate of use. Parents who were educated about mounting the CSS in a car used it more as compared with others (25.7% vs. 12.2%) (P=0.002). Furthermore, if parents had heard about the importance or necessity of CSS, they used it more than others did (19.5% vs. 10.6%, P=0.032). Conclusion: Despite the legal regulation, most parents transport their newborn infants without a CSS while traveling from hospital to their home. The rate of CSS use was influenced by parental education and their knowledge about its necessity. Education programs for parents must be reinforced to increase the CSS use.

A Study on the Use and Protection of Copyrights in Public Archives (공공기록물의 이용과 저작권보호에 관한 연구)

  • Si, Kwi-Sun
    • Journal of Korean Society of Archives and Records Management
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    • v.9 no.2
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    • pp.159-188
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    • 2009
  • In the midst of computerization and digitization of the archives, the way of use and the need of users to use the public archives has been changed and expanded. It draws concerned party's attention to the copyrights in the public archives and the protection of the copyrights of the public archives. This study examines the exiting copyright laws in Korea and some foreign countries, interprets the laws, and presents legal implications when the laws are applied to the public archives held in the National Archives of Korea(NAK). The public records are "literary works" and their copyrights are to be protected. Most of the public archives held in the NAK are also "creative works" which are the presentations of thoughts and feelings of the individuals, the records creators in the public agencies. The holder of the copyrights of the archives is not the NAK, but the agency which created the archives, such as the central government and local governments. To promote the use of public archives, we need to expand the public domain in the public records and archives and the fair use of the archives. To do this, I suggest to amend and complement the Copyrights Act, the Pubic Records/Archives Management Act, and the Opening Records in the Public Agencies Act(FOIA in Korea). The establishment of a coordinating body dealing the copyrights in pubic record and archives is strongly recommended. The coordinating body will provide guidelines on protecting copyrights and expand the fair use and the public domain of the public archives.