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The Preference of the environments of the elderly housing by different age groups (연령계층별 노인주거환경에 대한 선호도 비교)

  • 지은영
    • Journal of the Korean Home Economics Association
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    • v.35 no.2
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    • pp.297-308
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    • 1997
  • The purpose of this study was to examine the environmental characteristics of housing for the elderly preferred by different age groups. By age groups, the result of the study may be described as follows: 1. The young people and the middle aged wanted to live in self-contained unit, but the aged tended to live in the three-generation sharing house to spend their declining years in the future. 2. In the interior housing environment, all three age groups were highly interested in the security facilities than the interior space arrangements of planning of elderly housing. especially, the result of demand of the interior space arrangements in the young people was higher than the old age's. In the exterior housing environment, the garden si the most important space in establishing housing plan.

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The control characteristic evaluation of Desktop machine tool (Desktop 가공기의 제어특성 평가)

  • 박종영;이득우;김정석;정우섭
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.137-140
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    • 2003
  • Recently, as the demand of small-sized precision parts is rising in precision industry such as mobile, automobile, optic. etc. the requirement of small-sized machine tool is increasing. Desktop machine tool define small-sized machine tool that is able to install in table. According to diminishing in size, Desktop machine tool is able to economize production cost by reducing work area and consuming electric power. But Desktop machine tool generates vibration in acceleration and deceleration modes by inertia force of moving part. Also vibration is generated when it move simultaneously two axis or three axis. Such generating vibration situation is reason of declining stiffness of machine tool structure because of smallizing in size. And this vibration has a large effect on precision of machining products. Therefore, evaluating of the control characteristic is necessary for minimizing vibration of machine tool as much as possible to accomplish precision machining of small-sized parts

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The paradigm against a railway quality which changes in 21 century (21세기 철도특성에 대한 패러다임의 변화에 관한 연구)

  • Jung Ye-Seoung
    • Proceedings of the KSR Conference
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    • 2005.05a
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    • pp.1138-1145
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    • 2005
  • The public, mass transportation, monopoly, speediness and the long distance transportation of railway have realized by representative advantage from former days. But realization for railway that is declining by industry on the decline by the 1970s since the 1st World War has been changing recently newly. Development of a technology and fast change of industry environment exerted big effect about traffic. And IT and wave in 21C that is spoken for to environment changed together paradigm for railway. Now, is forecasted that period 'Renaissance of railway' may set on the near future because road embankment is getting into the spotlight again by the future alternative among transportation worldwide. In this paper, characteristic of railway to move altered how, and paradigms of been rising railway quality wish to examine what it is newly.

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Synthesis of amorphous calcium carbonate by gas-liquid reaction and its crystallization

  • Ahn Ji-Whan;Kim Hyung-Seok;Park Jin-Koo;Kim Ka-Yeon;Yim Going;Joo Sung-Min
    • 한국지구물리탐사학회:학술대회논문집
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    • 2003.11a
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    • pp.654-657
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    • 2003
  • We obtained amorphous calcium carbonate through the carbonation reaction of $Ca(OH)_2$, and through this reaction, observed changes in particle shape and phase by electric conductivity, XRD and TEM analysis. According to the result of the analysis, in the first declining stage of electric conductivity, amorphous calcium carbonate that has formed is coated on the surface of $Ca(OH)_2$ and obstructs its dissolution, and in the first recovery stage of electric conductivity, amorphous calcium carbonate is dissolved and re-precipitated and forms chains of fine calcite particles linearly joined. In the second decline of conductivity, viscosity increases due to the growth of chains of calcite particles, and finally the calcite particles are dissolved and separated into colloidal crystalline calcite, thereby increasing electric conductivity again.

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The Effect of Incentives on Internet Surveys: Response Rate Changes After the Introduction of Incentives

  • Kennedy, John M.;Ouimet, Judith A.
    • Asian Journal for Public Opinion Research
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    • v.1 no.2
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    • pp.128-146
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    • 2014
  • Incentives are often included in survey design because they are known to improve response rates, at least moderately. This paper describes the changes in the response rates when incentives were introduced into a longitudinal survey. The National Survey of Student Engagement was conducted annually at Indiana University Bloomington from 2000 through 2012. In 2010, incentives were introduced in an attempt to reverse the declining response rates. The incentives performed as expected, raising the AAPOR Response Rate 3 from 24% in 2009 to 36% in 2010. From 2010 through 2012, different types of incentives were tried but the response rates did not change substantially. The results from the changes in incentives can help survey practitioners decide the number and types of incentives that might be used effectively to increase response rates.

Cohort Analysis of Incidence/Mortality of Liver Cancer in Japan through Logistic Curve Fitting

  • Okamoto, Etsuji
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.10
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    • pp.5891-5893
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    • 2013
  • Incidence/mortality of liver cancer follow logistic curves because there is a limit reflecting the prevalence of hepatitis virus carriers in the cohort. The author fitted logistic curves to incidence/mortality data covering the nine five-year cohorts born in 1911-1955 of both sexes. Goodness-of-fit of logistic curves was sufficiently precise to be used for future predictions. Younger cohorts born in 1936 or later were predicted to show constant decline in incidence/mortality in the future. The male cohort born in 1931-35 showed an elevated incidence/mortality of liver cancer early in their lives supporting the previous claim that this particular cohort had suffered massive HCV infection due to nation-wide drug abuse in the 1950s. Declining case-fatality observed in younger cohorts suggested improved treatment of liver cancer. This study demonstrated that incidence/mortality of liver cancer follow logistic curves and fitted logistic formulae can be used for future prediction. Given the predicted decline of incidence/mortality in younger cohorts, liver cancer is likely to be lost to history in the not-so-distant future.

Structure and Function of Submarine Forest -1. Age and Growth of Myagropsis myagroides (Phaeophyta) at Tongyeong- (해중림의 구조와 기능 -1. 통영산 외톨개모자반(MYAGROPSIS MYAGROIDES) 개체군의 연령과 생장-)

  • Kim,Nam-Gil;Yu,Jong-Su
    • ALGAE
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    • v.18 no.4
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    • pp.289-294
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    • 2003
  • The age growth pattern of Myagropsis mygroides (Cystoseiraceae, Phaeophyta)population were investigated at Tongyeong (128$^{\circ}$ 25' E and 34$^{\circ}$ 45' N) in South coast of Korea, from September 1998 to August 1999. Water temperatures varied from 7.7${^{\circ}C}$ to 26${^{\circ}C}$ during the survey period. Distinct seasonal changes were found in the plant legth and wet weight of plant, and their maximum length and wet weight were attained 70.5(${\pm}$ 20.9) cm and 191.8(${\pm}$ 135.0) g during April and May. The growth patterns were divided into four periods of slow growth (September-November), fast growth (December-February), maturing growth (March-May) and declining period (June-August). The Tongyeong population of M. myagroides was dominated by less than three-year old small plants with slower growth rates, shorter plant length, lighter plant weight than those of other locations in Korea.

Design Strategy Based on Designer Roles in Design-Oriented Firms: A Comparison of Hanssem and Ikea

  • Kim, So-Hyung
    • Journal of Distribution Science
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    • v.13 no.3
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    • pp.21-29
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    • 2015
  • Purpose - This paper addresses the role of designers in design-oriented firms and how they should work together with other organization members. The aim of this paper is to investigate how designers generate ideas and cooperate with others as well as how their participation in decision-making reflects on corporate design strategies. Research design, data, and methodology - An in-depth exploratory study examined how designers actually perform their roles in enterprises; in addition, information, knowledge, communication among designers, and sources of creativity were examined. Hanssem and Ikea grew as design-intensive businesses in a declining industry. Data were obtained from interviews with the design staff of each company as well as secondary sources. Results - Designers were found to use their designs to communicate with customers as well as with communities outside of the enterprise; they also participated in overall decision-making in relation to important design strategies. Conclusions - This study emphasized the increasing importance of the innovative and creative role of designers; thus, it might substantially help companies to develop their own design capabilities and deploy design strategies.

Massive Intracerebral Hemorrhage Caused by a Cavernous Malformation

  • Kim, Young-Soo;Lee, Jae-Il;Choi, Chang-Hwa;Ko, Jun-Kyeung
    • Journal of Korean Neurosurgical Society
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    • v.51 no.1
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    • pp.37-39
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    • 2012
  • We present a rare case of massive intracerebral hemorrhage resulting from a small, superficially-located supratentorial cavernous malformation, or cavernoma. These lesions rarely lead to massive, life-threatening intracerebral hemorrhages. A 17-year-old female presented with a 3-week history of declining mental status. Brain computed tomography and magnetic resonance imaging revealed a sizable intracranial hemorrhage, within the right occipital region, associated with a small nodule at the hematoma's posterior margin. An emergency operation removed the entire hematoma and nodule. Histological examination of the nodule was compatible with a diagnosis of cavernous malformation. The patient's post-operative course was uneventful.

A Comparative Housing Policy and Policy Transfer between Countries with Respect to Low-Income Housing in Korea

  • Ha, Seong-Kyu;Choi, Eun-Jin
    • Land and Housing Review
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    • v.2 no.3
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    • pp.205-215
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    • 2011
  • Korea has experienced a remarkable economic achievement since the 1960s. However, behind this facade of growth and progress, a chronic housing shortage in the capital region, declining owner-occupation, rising housing costs, and polarization in housing conditions between the better-off and the worse-off clearly illustrate the impasse and crisis in housing that Korea now faces. In addition, the IMF crisis and the late global financial crisis shocked the Korean housing market. The Korean government has made significant policy changes to improve housing security for less-privileged groups. In order to achieve housing policy development, the Korean government has tried to employ of advanced countries. What are the benefits(merits) and dangers(demerits) of housing policy transfer between countries? This paper emphasizes that we must recognize about 'differences' rather than 'commonalities' between countries with respect to policy transfer. It also maintains that the government should play a main role as an enabler rather as a provider of 'low-cost' housing.