• Journal of Navigation and Port Research
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• v.30 no.8 s.114
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• pp.721-727
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• 2006

Ammoniac nitrogen excretion is not able to be removed in ocean fish farm. It is the reason for fish being dead in large quantities or declining feeding activity that ammoniac nitrogen is not removed efficiently in ocean fish farm. Because of declining with feeding activity, it is true that feed is wasted for the present. To solve this problem, NH3, one of environment factors in ocean fish farm, monitoring system is suggested to be formed in this paper.

• Journal of Korean Medical classics
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• v.20 no.3
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• pp.9-22
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• 2007

We got some conclusion like below. after comparison and consideration mainly with commentary of "Somun(素問)", "Uihakyimmun(醫學入門)"about pulses, reasons, symptoms, treatments of HaeYok. The name of Haeyok was appeared "Somun(素問)", "Youngchu(靈樞)" for the first time, and from then 'Treatment From Pulse' was promoted into details. About the Pulse of Haeyok, every doctor followed the 'chokmaekwansaek' mentioned in "Somun Pyoungingisanglon(素問 平人氣象論)". But the letter 'wan(緩)' in 'chokmaekwansaek' was translated not pulse but drooped skin in "SomunKumsok(素問今釋)". On the reasons of Haeyok, we can lot out in detail like next; (1) heat of liver and abdomen, lack of blood. (2) declining Gi, little blood, (3) declining and little Gi of spleen, (4) Lack of Gi and Blood, (5) weak kidney energy, (6) nutritional vacancy, (7) no energy circulation from hardened kidney, (8) exogenous disease on void kidney (9) both weak meridian of liver, kidney. And it can be divided broadly into two groups; weak liver and kidney, declining and little Gi of spleen. The symptoms of Haeyok is that patient feels cold, but really that is not cold, feels weak, really not weak, feels vigorous but not. So hardly be named. the members are exhausted, people get lazy, annoying, sick. and have no vitality. Treatments about this, some prescriptions are suggested such as Baekhaptang(白合湯) from "Naekyoungsupyoubanglon(內經拾遺方論)", Yishintang(利腎湯) from "Hwangjesomunsonmyoungbanglon(黃帝素問宣明方論)". In "Dongyanguihakdaesajon", there's some treatment according to some reason; when we are lazy and don't know where is sick, use Haryoungmansudan(遐齡萬壽丹) or Shinsongijedan(神仙旣濟丹), When it is from Liquor, use Galhwahaedokdan(葛花解毒丹), When from humidity use Gamichulbutang(加味朮附湯), from cold use Ganghwalchunghwatang(羌活沖和湯), and when it comes from instable menstruation, it will be good Gamisoyosan(加味逍遙散). And treatment principle from "Uihakyimmun(醫學入門)" is that "Circulate Gi and blood, be thin skin, prescribe exogenous disease over for void organs."

• Journal of the Korean Institute of Rural Architecture
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• v.12 no.1
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• pp.25-32
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• 2010

The aim of this thesis is to present why the business district of old downtown in Jejusi collapsed and what sort of problems caused by that as collecting objective data, which help us to comprehend how the commercial zone has been decaying, on the physical state of the specific area near 'Sinheungro' and 'Chilsungro', which are main commercial sites in the downtown, and analysing it. Firstly It was revealed that most land investigated was property in which structure was able to built or poor land within $60m^2$. This was caused by increasing in land value and high density in space use so that the area did not develop. Secondly, In addition to be low density, most of buildings in 'Sinheungro' and 'Chilsungro' were so old and inefficient - the old buildings were abandoned without improving due to expensive rent and complicated property rights. Thirdly, According to the survey accomplished, major commercial facilities in the area have struggled with the continuous recession in their business. It was the inevitable result of not having an effective alliance with surrounding retail shops and a lack of a strategic action for satisfying consumers desire or adapting to new shopping patterns. Fourthly, Infrastructure in the site was ruining the beauty of the urban landscape as well as bringing on bad access to the inner city as not having improved enough. Furthermore, many administration departments which were in charge of each infrastructure existed. This was resulted from not considering unification between each infrastructure and regional characteristics of the local community.

• Korea journal of population studies
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• v.25 no.1
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• pp.5-32
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• 2002

This research explores the current situation and determinants of induced abortion in Korea. Using 2000 National fertility Survey by Korea Institute of Health and Social Affairs, this study finds that induced abortion rate is rapidly declining so that the role of induced abortion in determining the level of fertility has disappeared. The fundamental reason for resorting to an induced abortion for Korean women is to avoid unwanted birth. Thus, we find that induced abortion is usually taken by Korean women for the purpose of limiting family size and spacing births as in any other countries. Premarital pregnancy and economic hardship are also important reason for taking an induced abortioin, especially for the first time abortion.

• 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

• Journal of Fisheries and Marine Sciences Education
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• v.28 no.2
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• pp.391-400
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• 2016

As a result of human's behaviour, ecosystem services are declining in present. This impact of the reason is turning back to human lives. In order to realize relationship between these ecosystems and humans, it is important that we take education about ecosystem. This study identified the components and services of the forest ecosystem which accounts for 64% of Korea's land. The forest ecosystem has various benefits called the ecosystem service. The purpose of this study is to realize the value and importance of forest ecosystem through the quantification of ecosystem components and services. Therefore, we identify the organic relationship of the ecosystem by System ecology. This study of quantitative, systemic and scientific approach will be a way for promoting the importance of the forest ecosystem.

• Culinary science and hospitality research
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• v.8 no.3
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• pp.231-247
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• 2002

Rice is staple grain of our people and at the same time it is major source of income for Korean farmers. But recently various problems in connection with rice arose such as declining consumption etc. for this reason not only government but also related agencies are discussing about expanding vice consumption. This study is an attempt to provide basic data required for developing rice food and method of cooking it as a measure for increasing rice consumption and far this purpose survey has been conducted on primary school students in connection with their level of recognition, preference far rice food as well as their understanding and their consciousness on issues related to this topic. In terms of level of recognition of rice food majority of students which were subjected to this study stated that either they knew names of about 39 types of rice foods shown or had experience of eating them. They also stated in answers to question related to dietary habit that they prefer rice foods. Their reply on taste of rice food was plain and neat. But it was found their level of recognition on our traditional rice foods such as Ssal Dasik (rice cookies), Ssal Jinbyung (rice cakes) and Buggumi (fried rice cakes) etc. was very low. In connection with questions on their understanding of rice and consciousness of problems related to rice it was revealed that more than majority of primary school students in this research had erroneous idea on reason for the need of our effort for expanding rice consumption. Accordingly in order to expand rice consumption it is necessary to develop educational program addressing subjects of cultural and nutritional effect value of rice, effect of rice consumption upon rural economy and its application to school education concurrently with persistent study in order to diversify rice food restaurants and to improve method of cooking.

• Environmental Engineering Research
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• v.25 no.1
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• pp.129-134
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• 2020

The main reason that drives many developing countries to pursue waste-to-energy (WtE) technologies is that it produces energy while eliminating build-up of large quantities of wastes, at a time, when oil and gas reserves are declining. The rate of generation of municipal solid wastes (MSW) in any given country depends on many factors including economy, population, and modernization of industry and infrastructure developments. The United Arab Emirates (UAE) is a federation of seven emirates that has grown to be one of the Middle East's most important economic centers. UAE has also become one of the highest waste producing countries due to fast development and growth; thus, UAE pursue modern technologies to covert generated wastes into energy. In this communication, the status of on-going waste to energy projects and WtE plants that are currently under design and construction in UAE are discussed. The need for development of WtE technologies is presented based on the literature, reports, economics and the environmental regulations.

• Journal of the Korean Institute of Landscape Architecture
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• v.35 no.6
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• pp.37-47
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• 2008

Recently, reckless exploitation of land resources without much consideration for the environmental value of the land has been witnessed to accommodate the ever-increasing demands for regional development. Fragmentation due to land development is a major reason for the declining biodiversity in forest ecosystems. The purposes of this study were (1) to investigate the relationship between the factors of land development and forest fragmentation in 13 watersheds of a metropolitan area and (2) to suggest a forest management plan through the relationship. We carried out a factor analysis to determine explanatory axes of forest fragmentation, and then conducted a correlation analysis between the factor scores and the factor of land development, such as the rate of built-up areas, road density, number of built-up patches, and area of housing developments. The first explanatory axis represented stability of landscape highly related with the rate of the built-up area and road density. The second axis represented the level of fragment highly related with a number of built-up patches. Forest fragmentation patterns of the 13 watersheds were classified for the similarity in forest fragmentation. This study presents the forest management plans including distribution and level of land development and forest conservation.

• Journal of the Korean Society for Precision Engineering
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• v.22 no.2
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• pp.38-45
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• 2005

Chemical mechanical polishing(CMP) has been widely accepted for the planarization of multi-layer structures in semiconductor fabrication. But a variety of defects such as abrasive contamination, scratch, dishing, erosion and corrosion are occurred during CMP. Especially, dishing and erosion defects increase the metal resistance because they decrease the interconnect section area, and ultimately reduce the lift time of the semiconductor. Due to this reason dishing and erosion must be prohibited. The pattern density and size in chip have a significant influence on dishing and erosion occurred by over-polishing. The fixed abrasive pad(FAP) was applied and tested to reduce dishing and erosion in this paper. The abrasive concentration decrease of FAP results in advanced pattern selectivity which can lead the uniform removal in chip and declining over-polishing. Consequently, reduced dishing and erosion was observed in CMP of tungsten pattern wafer with proposed FAP and chemicals.