• 제목/요약/키워드: Obstacle Area

검색결과 245건 처리시간 0.032초

접근성 지표를 도입한 보행로 서비스 수준의 영향요인 규명 (Determination of Key Factors for the Pedestrian LOS Introducing the Accessibility Index)

  • 최성택;추상호;장진영
    • 대한교통학회지
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    • 제33권6호
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    • pp.584-597
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    • 2015
  • 보행로 서비스 수준 평가에 활용된 기존 지표는 보행의 양적인 측면에만 집중한다는 점에서 서비스 수준을 올바르게 평가하지 못하는 한계점을 갖고 있다. 이를 극복하기 위해 본 연구는 평가를 위한 효과척도로 접근성 지표를 제안하였다. 특히 대중교통수단과 보행로간의 접근성에 주목하여 변수를 구축하였다. 본 연구는 3단계로 구성된다. 1단계에서는 버스와 지하철 등의 대중교통 지표를 활용해 접근성 변수를 수단별로 정의하였다. 2단계에서는 접근성 변수와 보행류율간의 상관관계를 검토하였다. 3단계에서는 접근성 변수를 포함한 보행로 서비스 수준의 영향요인을 규명하는 모형을 개발하였다. 개발 결과, 접근성, 보행로 기하구조, 주거와 상업 등의 토지이용 용도 등이 보행로 서비스 수준에 영향을 끼치는 것으로 나타났다. 특히 접근성, 상업용도 면적 비율은 보행 활동을 유인하여 서비스 수준을 떨어트리는 것으로 밝혀졌다. 이와 함께 지장물과 버스 정류장이 입지하는 경우에도 서비스 수준은 하락하였다. 그러나 주거면적 비율이 높거나 유효보도폭이 넓을수록 서비스 수준은 향상되는 것으로 분석되었다. 이러한 결과는 보행로 서비스 수준 산정, 유효보도폭 결정 등의 분야에 활용될 수 있다.

장애물이 없는 3차원 네트워크 공간에서 통신 범위 내에 무선 링크가 가능한 블록 기반의 균등 분포 무작위 노드 배치 방법 (A Block-based Uniformly Distributed Random Node Arrangement Method Enabling to Wirelessly Link Neighbor Nodes within the Communication Range in Free 3-Dimensional Network Spaces)

  • 임동현;김창화
    • 한국멀티미디어학회논문지
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    • 제25권10호
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    • pp.1404-1415
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    • 2022
  • The 2-dimensional arrangement method of nodes has been used in most of RF (Radio Frequency) based communication network simulations. However, this method is not useful for the an none-obstacle 3-dimensional space networks in which the propagation delay speed in communication is very slow and, moreover, the values of performance factors such as the communication speed and the error rate change on the depth of node. Such a typical example is an underwater communication network. The 2-dimensional arrangement method is also not useful for the RF based network like some WSNs (Wireless Sensor Networks), IBSs (Intelligent Building Systems), or smart homes, in which the distance between nodes is short or some of nodes can be arranged overlapping with their different heights in similar planar location. In such cases, the 2-dimensional network simulation results are highly inaccurate and unbelievable so that they lead to user's erroneous predictions and judgments. For these reasons, in this paper, we propose a method to place uniformly and randomly communication nodes in 3-dimensional network space, making the wireless link with neighbor node possible. In this method, based on the communication rage of the node, blocks are generated to construct the 3-dimensional network and a node per one block is generated and placed within a block area. In this paper, we also introduce an algorithm based on this method and we show the performance results and evaluations on the average time in a node generation and arrangement, and the arrangement time and scatter-plotted visualization time of all nodes according to the number of them. In addition, comparison with previous studies is conducted. As a result of evaluating the performance of the algorithm, it was found that the processing time of the algorithm was proportional to the number of nodes to be created, and the average generation time of one node was between 0.238 and 0.28 us. ultimately, There is no problem even if a simulation network with a large number of nodes is created, so it can be sufficiently introduced at the time of simulation.

해양산업 클러스터와 항만도시재생의 상관성에 관한 연구 - 부산 북항을 중심으로 - (A Study on the Correlation between Marine Industry Cluster and Port Regeneration - Focused on the Busan North Port -)

  • 리윈장;양명인;전수아;어영호;최태영
    • 한국항만경제학회지
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    • 제38권1호
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    • pp.101-111
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    • 2022
  • 한국은 아시아의 대표적인 선진국로서 대외무역항로와 해양경제가 내륙국가에 비하여 절대적인 우위를 가진다. 사회 변화에 따라 원래의 항만지역은 다양한 원인으로, 일부 병폐가 점차 사람들의 사야를 드러내 보이고 있다. 이로 인해 직접적인 영향과 손상을 받는 것은 항만지역 해양산업 클러스터의 경제이율과 미래 발전 공간이다. 본 연구는 해양산업 클러스터와 항만도시재생 사이의 관계에 대해 연구하였다. 정량분석 각도에서 재생디자인을 분석해 나가며 항만도시재생을 통하여 해양산업 클러스터를 활성화 시킬 수 있는 필요성 및 중요성을 제시하고자 한다. 우선 이론적 배경을 고찰하여, 세계적으로 잘 된 항만도시 사례 분석을 통해 연구대상지 부산 북항의 현황을 맞춰서 분석하였다. 그리고 본 연구의 신뢰성을 높이기 위하여 다시 해양산업 클러스터와 항만도시재생의 데이터로 실증분석을 하였다. 본 연구 사례조사와 실증분석의 결과를 보면 해양산업 클러스터와 항만도시재생 간 실제로 향상시키고 상호작용한 관계이다. 연구를 통해 부산 북항재개발사업을 디자인적, 환경적, 경제적 차원에서 추진하고 지역 발전의 우세를 찾을 동시에 부산지역 해양도시로서의 위상을 높일 수 있을 것으로 기대한다. 연구 결과에 따르면 어느 나라나 항만도시든지 경제, 사회, 문화 등의 발전은 해양산업 클러스터의 활성화를 촉진할 수밖에 없으며, 마찬가지로 항만지역이 어느 정도 발전하면 자연히 물리적 여건상 낙후되어 지역발전에 장애가 생기게 되는데, 항구도시의 재생을 통해 이 문제를 간단명료하게 해결할 수 있다.

간호사의 간호업무 전산화 활용에 대한 조사연구 (A Survey on Nurses' Utilization of Computerization in Nursing Practice)

  • 이인순
    • 간호행정학회지
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    • 제5권2호
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    • pp.209-224
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    • 1999
  • I have practiced this reserch for the purpose of proposition of basic data for amendment and addition of computer system after I surveyed the degree of abilities and satisfaction on the computerization in nursing\ practice. Subjects were collected from September 1 to September 30, 1998. Study subjects are 151 clinical nurses who are working at university hospital in Chonbuk area. Study instrument consists of 116 questionnaire which was developed by Kim H. K(1998). The data were analized number, mean ,t-test, ANOVA by using SPSS. The study results are as follows: 1. Most of the nurses who answered the questions were educated computerizing(96%). The abilities of computer program utilities were the most in inputting data(74%). The program nurses wanted computerizing education was wordprocess, dealing internet and statistics. 2. As for applying parts of computer system in nursing, the most nurses were Dr's order check (96%), treatment activity(91.4%), medication(89.4%), lab. test(87 .4%), transfering department(85.4%), transfering room(79.5%), diet(71.8%), discharge (70.2%), Barcord Sticker(70.2%) , reservation(62.2%) in order that were all conected order system mutually to other part. It showed that computer system was not applied for treating the original nursing work such as nursing record (13%), duty scheduling(6.0%) , nursing process(4.6%) , Q.I(1.3%), nursing research(1.3%), education(1.3%), 3. As for the benefit when computer system is applied for, the most respondence was promptness of work and convenience(90.6%) , exactness of work (82.8%), offering information exactily and efficiently(36.3%), offering good quality of nursing (6.0%) in order. 4. The degree of contentment on computerizing in nursing practice showed average 3.24%. The best marking item is that they are eager to participate in the computer education. Next, the automatic output of label and giving the number automatically is to prevent loss and mentioned items of patient registration from being changed(3.95) and to prevent mistakes possibly happening because of doctor's difficult order(3.85). 5. The problems which may happen to in nurses' utilization of computerization for the nursing practice showed average 3.18. The most problem is that the practice may stop because of the problem of computer itself(3.67), and the next, the indication of act can be imperfect(3.66) , manual training may overlap because of incomplete computerization (3.60), practical education for the computerizing is lack(3.41), and the computer literate nurses are lack(3.40) . 6. Study subject's contentment by age was significant difference(F=3.10,P=0.0119). Study subject's contentment by job posision was significant difference(F=6.001P=0.0034) I will propose the following according to the above results. The domain of original nursing practice is urgernt. Manual and indication of act should be made before long in computer obstacle. Nursing department should support the nurses so that they could receive the education needed for the nurses themselves.

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통영지역의 일제강점기 수산관련 주요 동향에 대한 분석 -어업현황, 어획고, 주요 이슈 등을 중심으로- (A Study on Fisheries Business Trends during the Period of Japanese Colonial Rule in Tongyeong based on Fisheries Status, Catches and Issues)

  • 이동호
    • 수산경영론집
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    • 제46권2호
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    • pp.75-92
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    • 2015
  • Generally, the outcomes of the historical study in some domain would be a most fundamental and basic reference for understanding the essential and core component of them. Specially in case of social science, the importance of historical research much more emphasized that would be divided into independent academic field. In Korean history including fisheries business and industry, the most remarkable historic event would be the period of Japanese colonial rule that one of the most obstacle should overcome. Though the fisheries business and industry of Korea have considerable own history, the research and study of that not so much have been performed or investigated including the period of Japanese colonial rule. Most of the existing research of fisheries history have merely focused on partial topics like 'Fishermen's Association', 'Fisheries Industry Despoliation'. And the historical study of fisheries business and industry's overall status and trend in local area except Pusan also not enough. The aims of this study are exploring the fisheries trends and status during the period of Japanese colonial rule in Tongyeong and finding out the overall major fisheries business issues that would be a better understanding the Korean fisheries industry. Achieving that Objectives, over 800 articles of media, the Japanese government-general of Korea, and other historical data were gathered, refined and analyzed. This paper focused on of major fisheries topics and issues that including overall fisheries status, trends, fisheries catches, local fisheries cooperatives and fisheries exhibition during the period of Japanese colonial rule in Tongyeong. The result of this study shows that the status of fisheries in Korea had been deteriorated for exploitation of Japanese imperialism and Japanese fisheries capitalist during that period. Though the level of Tongyeong in fisheries was very high in terms of catches ratio and population of fisherman, the distribution networks of fishermen's association was not good enough. And the Tongyeong fisheries exhibition in 1922 has positive aspects for considering both composition of organization and educational activity. Even though the results and findings would be a helpful guidelines for understanding the fisheries business trends and status under the rule of Japanese imperialism, more research and study of that should be accomplished.

유아교사의 인성에 따른 유아 인성교육의 인식 및 실태 (A study on Teacher's Perception, the actual condition for the Early Childhood Character Education depend on Teacher's Personality)

  • 손은경;유지은;김숙희;손혜경
    • 한국산학기술학회논문지
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    • 제16권12호
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    • pp.8915-8926
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    • 2015
  • 본 연구는 유아교사의 인성과 개인변인에 따른 인성의 차이를 살펴보고, 유아교사의 인성 집단에 따른 유아 인성교육에 대한 인식, 실태를 알아보는 것이 목적이다. 이에 충청도 D시에 근무하고 있는 유아교사 194명을 대상으로 하였으며, 수집된 자료는 SPSS 21.0 program을 이용하여 분석하였다. 그 결과, 첫째, 유아교사의 인성은 경력과 연령에 따라 차이가 있었다. 둘째, 유아 인성교육에 대한 인식에서는 유아교사는 인성교육의 필요성과 중요성을 공감하고 있었으나 그에 따른 실천방법에 대한 부재가 장애요인이었다. 셋째, 인성이 높은 집단은 교사의 인간관계 덕목과 생명존중 및 인간애가 중요한 덕목이라고 인식하고 있었다. 넷째, 유아 인성교육에 대한 실태에서는 유아 인성교육의 목적을 인간존중으로 보았으며 바른 가치관이 교육의 내용으로 전 영역을 통한 지도를 해야 한다고 인식하였다. 다섯째, 인성이 낮은 집단의 교사는 직무수행이 교사의 덕목이며 유아는 예절이 필요한 덕목이라고 인식하고 있었다. 인성교육의 목적과 내용을 예절교육이라고 인식하고 있었으며 가정과의 연계를 통한 지도가 바람직하다고 인식하였다. 이에 유아에게 인성교육을 하기 위해서는 무엇보다 교사 자신 스스로 반성적 사고를 할 수 있는 기회가 필요하다.

혐기성 미생물에 의한 토양내 다핵성방향족화합물의 생물학적 분해 (Biodegradation of Polynuclear Aromatic Hydrocarbons in soil using microorganisms under anaerobic conditions)

  • 안익성
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2000년도 춘계학술발표대회
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    • pp.89-91
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    • 2000
  • Polynuclear aromatic hydrocarbon (PAH) compounds are highly carcinogenic chemicals and common groundwater contaminants that are observed to persist in soils. The adherence and slow release of PAHs in soil is an obstacle to remediation and complicates the assessment of cleanup standards and risks. Biological degradation of PAHs in soil has been an area of active research because biological treatment may be less costly than conventional pumping technologies or excavation and thermal treatment. Biological degradation also offers the advantage to transform PAHs into non-toxic products such as biomass and carbon dioxide. Ample evidence exists for aerobic biodegradation of PAHs and many bacteria capable of degrading PAHs have been isolated and characterized. However, the microbial degradation of PAHs in sediments is impaired due to the anaerobic conditions that result from the typically high oxygen demand of the organic material present in the soil, the low solubility of oxygen in water, and the slow mass transfer of oxygen from overlying water to the soil environment. For these reasons, anaerobic microbial degradation technologies could help alleviate sediment PAH contamination and offer significant advantages for cost-efficient in-situ treatment. But very little is known about the potential for anaerobic degradation of PAHs in field soils. The objectives of this research were to assess: (1) the potential for biodegradation of PAH in field aged soils under denitrification conditions, (2) to assess the potential for biodegradation of naphthalene in soil microcosms under denitrifying conditions, and (3) to assess for the existence of microorganisms in field sediments capable of degrading naphthalene via denitrification. Two kinds of soils were used in this research: Harbor Point sediment (HPS-2) and Milwaukee Harbor sediment (MHS). Results presented in this seminar indicate possible degradation of PAHs in soil under denitrifying conditions. During the two months of anaerobic degradation, total PAH removal was modest probably due to both the low availability of the PAHs and competition with other more easily degradable sources of carbon in the sediments. For both Harbor Point sediment (HPS-2) and Milwaukee Harbor sediment (MHS), PAH reduction was confined to 3- and 4-ring PAHs. Comparing PAH reductions during two months of aerobic and anaerobic biotreatment of MHS, it was found that extent of PAHreduction for anaerobic treatment was compatible with that for aerobic treatment. Interestingly, removal of PAHs from sediment particle classes (by size and density) followed similar trends for aerobic and anaerobic treatment of MHS. The majority of the PAHs removed during biotreatment came from the clay/silt fraction. In an earlier study it was shown that PAHs associated with the clay/silt fraction in MHS were more available than PAHs associated with coal-derived fraction. Therefore, although total PAH reductions were small, the removal of PAHs from the more easily available sediment fraction (clay/silt) may result in a significant environmental benefit owing to a reduction in total PAH bioavailability. By using naphthalene as a model PAH compound, biodegradation of naphthalene under denitrifying condition was assessed in microcosms containing MHS. Naphthalene spiked into MHS was degraded below detection limit within 20 days with the accompanying reduction of nitrate. With repeated addition of naphthalene and nitrate, naphthalene degradation under nitrate reducing conditions was stable over one month. Nitrite, one of the intermediates of denitrification was detected during the incubation. Also the denitrification activity of the enrichment culture from MHS slurries was verified by monitoring the production of nitrogen gas in solid fluorescence denitrification medium. Microorganisms capable of degrading naphthalene via denitrification were isolated from this enrichment culture.

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현행 환경영향평가 제도의 문제점과 개선방안 - 실무자적 관점에서 검토 - (A Study on the Issues and Improvement of the Existing Environmental Impact Assessment System - Evaluation in an operator Viewpoint -)

  • 이승원;김정권;서정국
    • 한국환경과학회지
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    • 제27권5호
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    • pp.281-289
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    • 2018
  • The Korean environmental impact assessment(EIA) system, and explored ways to improve it as a more efficient and viable institution relevant to the demand of our time and conditions in study. The first problem this study identified is found in the fact that the party to write up the assessment report is itself the business operator or the one who is planning to work out the business plan. This structure translates into placing an order with an agent for EIA report. The reporting job may br subcontracted to the agent at a cost far below the rate specified in the 'Standard for Estimate of Agency Fee for Environmental Impact Assessment.' This practice also causes the vicious circle of producing a report that is written to justify the project or business in question or it leads to rough-and ready and poor documentation to minimize the time required. Second, in order to achieve the goal of the plan or business, which is the target of EIA, the local residents tend to ve regarded as an obstacle. This means elimination of the local people from participating in the EIA or their opinion being frequently ignored. This is the seed of distrust and hostility that sometimes provoke disagreements or fierce conflicts. The first proposal to improve these problem is to improve the factors that cause poor documentation of the assessment report as well as improve the understanding of the EIA system. This study proposes the following measures for improvement. The agency cost for EIA should be paid by the business operator or a third party that can ensure faithful implementation of the payment. A system should be established to verify transparent estimation of the agency cost. In order to enhance the professional quality of EIA agents, there should be implementation of qualification test for industrial engineer of related engineers in addition to the current EIA Qualification Test. The second proposal for improvement is to improve the citizen participation process by instituting a legal framework to make clear the purpose of the briefing session for local residents, which is held as a procedure of EIA, and to ensure more positive publicity during the stage of listening to the opinion of the local community. For a smooth and rational communication process, a moderator and a communicator of opinion, as is the case in a public hearing, could be instituted to clearly get the purpose of the briefing session across to the residents and to help to carry out the explanation and Q & A sessions according to the categories of the opinion of the residents. At present, the notification of the public inspection of the draft of the assessment report and briefing session for the residents is made on the newspaper and internet network. But some people have difficulty with access to this method of announcement. A higher participation rate could be secured if a legal provision is added to specify putting up placards in specific places such as the entrance to the place for the briefing session for residents or the building of administrative agencies of the area concerned.

임의비급여 허용요건에 관한 검토 (Review of Allowable Condition of the Discretionary not Covered Service)

  • 박태신
    • 의료법학
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    • 제13권2호
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    • pp.11-38
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    • 2012
  • The Supreme Court stand in the position in specific lawsuit that it doesn't allow the discretionary not covered service, but recently in revocation suit of fine disposal that is imposed on medical fee of leukemia patient, it altered the existing adjudgement and admitted the discretionary not covered service exceptionally. It put forward the allowable condition roughly in that case. According as this alteration, it has become more important to embody the allowance conditions of exceptions. The Supreme Court presented three things, which are procedural condition, medical condition and subscriber's agreement. Concerning procedural condition, several present conciliation procedures are as follows: medical care benefit arret request, relative value conciliation etc, prior request on anti-cancer drug among chemicals which exceed acceptance criteria, request of non benefit object on common drugs. To be granted the existence of those system, there should be no obstacle to use that. Even if it were so, we should take circumstances into consideration; individual situation is unescapable concerning substance and urgency of the discretionary not covered service, process of the procedure, time required etc. Regarding medical condition, safety and effectiveness will be verified through evaluation procedures of new medical skill. About the necessity, the Supreme Court made clear through a sentence that it allow the discretionary not covered service, in case that needs to treat a patient out of the standard of medical benefit. Strict interpretation is right and it answer the purpose of the sentence that the supreme court permit the discretionary not covered service, exceptionally. We need to differentiate medical necessity and medical validity. Subscriber's agreement should holds true if it entails full explanation, and if it is preliminary, explicit and individual. On this account, it should be difficult to admit that someone agree effectively when he call for the affirmation that he is recipient of medical care. Reasonable expense needs to be a part of review whether the agreement is valid. Meanwhile If we adjust system of medical expense and eventually reorganize a fee for consultation payment system (Fee-for-service controlled by item to DRG (Diagnosis Related Groups)), controversial area of the discretionary not covered service will be decreased and that will guarantee the discretion of the doctor.

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약선죽(藥膳粥) 메뉴개발을 위한 인식조사 - 대전지역 노인을 중심으로 - (A Survey on the Perception of Gruel as Medicated Juk for Menu Development - Focusing on the Elders in Daejon area -)

  • 김정은;장우심;지명순
    • 한국식품조리과학회지
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    • 제30권2호
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    • pp.219-227
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    • 2014
  • The objective of this study was to research the health status of the elderly population and their perception and compliance to cook medicated juk. The results from this research will be used as basic data for medicated juk development. In addition, the purpose of this study was to find a way to popularize the juk and improve their usage as medicated juk in communal feeding and convalescent hospital for elderly. The study surveyed 300 elderly residents of age over 65, in Daejeon. The following data were collected: general characteristic, health status, perception of medicated juk, and preferred kind of juk for cooking. Moreover, the study researched the constraints in cooking the juk. Data were analyzed by SPSS Windows V. 18.0 and t-test verified the differences among the questions, according to frequency analysis of each item and characteristics of the aged. You might want to specify this characteristic. Within the surveyed elderly population, 80.6% had various existing diseases with circulatory diseases being the most prevalent with 68.9%. This emphasizes on the significance of proper diet, but this recognition is not put into practice. The survey also showed that as the individuals age, they tend to care less about the necessity of proper diet. Despite of this lack of perception, 84.5% of the elderly population responded positively to the question, "Would you like to have medicated juk for curing diseases, if such juk is available?" In addition, the elderly population was in favor of developing the juk that helps to prevent and cure diseases, and many were willing to cook them. The reasons behind their will to cook are arranged in the following order: higher efficacy in curing disease than regular juk, excellence in nutrition, and unavailability of the medicated juk in the stores that requires them to cook. The sources constraining the elderly population in cooking are arranged in the following order: not knowing how to cook the juk, lack of physical strength, financial burden, and lack of information order. Please clarify this part. Suggested change: not knowing what medicated juk is. Furthermore, the main obstacle in cooking the juk is lack of cooking technique, followed by inaccessibility to the ingredients and the financial burden to purchase the ingredients.