• Title/Summary/Keyword: Work Limits

Search Result 396, Processing Time 0.023 seconds

The Development of the Conceptual Model Visualization Program (개념모델 가시화 프로그램의 개발)

  • Choi, Hong-Seok;Okazaki, Akira
    • Science of Emotion and Sensibility
    • /
    • v.13 no.3
    • /
    • pp.573-580
    • /
    • 2010
  • The earlier KANSEI evaluation had to choose not to overlap the opposite meaning of the words, had to choose that some figures are shown step by step and had to choose be prepared things in advance. However, The Study shows a method which visualizes the imprecise evaluations of human without choosing evaluation items which are not prepared figures. The program is used the way which is entered by hand-drawing that the subjects use the way to enter their subjective feelings about the evaluations presented by using the mouse or the graphics tablet. It is possible to express imprecise things about evaluations and the method of drawing is free. The program provides that we can express our thinking by drawing and there are a few limits and the prescribed standard. The area ratio of each circle is expressed as a pie chart and the area of circle what is drawn which is counted automatically at the same time. These things are possible not only to modify a transparency, a thickness of a line, a color and the area of circle what is drawn, but also to adjust the area of circle. The conceptual model is visualized that expresses something by hand-drawing such as a circle. The conceptual model has wide range of applications such as a personnel evaluation, a suffering evaluation and product evaluation. The program currently has been testing the effective of the program's possibilities which is used with the personnel appraisal tool of the nurses themselves who work in nurse support department where the St. Marianna University School of Medicine Hospital is. And also the program is proceeding with development to visualize the conceptual model by dynamic interfaces effectively and the program is applied such as KJ method and a program is used to express the kind of the patient's pain and its level.

  • PDF

Lignin Removal from Barley Straw by Ethanosolv Pretreatment (Ethanosolv 전처리에 의한 보릿짚의 리그닌 제거)

  • Kim, Young-Ran;Yu, An-Na;Chung, Bong-Woo;Han, Min-Hee;Choi, Gi-Wook
    • KSBB Journal
    • /
    • v.24 no.6
    • /
    • pp.527-532
    • /
    • 2009
  • Lignocellulose represents a key sustainable source of biomass for transformation into biofuels and bio-based products. Unfortunately, lignocellulosic biomass is highly recalcitrant to biotransformation, both microbial and enzymatic, which limits its use and prevents. As a result, effective pretreatment strategies are necessary. The vast majority of pretreatment strategies have focused on achieving a reduction of lignin content. In this work, an ethanosolv pretreatment has been evaluated for extracting lignin from barley straw. 75% ethanol was used as a pretreatment solvent to extract lignin from barley straw. The influence on delignification of three independent variables are temperature, time, catalyst (1 M $H_2SO_4$) dose. The best pretreatment condition observed was $180^{\circ}C$, 120 min, 0.2% $H_2SO_4$ and delignification was 38%. A combined roasting and ethanosolv, 2-step pretreatment, was developed in order to improve the delignification. Roasting didn't increase the delignification but reduced the pretreatment time. X-ray diffraction results indicated that these physical changes enhance the enzymatic digestibility in the ethanosolv treated barley straw. The cellulose in the pretreated barley straw becomes more crystalline without undergoing ethanosolv.

Development of Bag Rupturing Device with Octagonal Rotating Blade Drums for MSWs (생활계(生活系) 폐기물(廢棄物) 봉투(封套) 파봉을 위한 회전(回傳)칼날팔각(八角)드럼식(式) 파봉장치(裝置) 개발(開發)에 관(關)한 연구(硏究))

  • Lee, Byung-Sun;Na, Kyung-Duk;Han, Sang-Kuk;Choi, Woo-Zin;Park, Eun-Kyu;Kim, Dong-Ho
    • Resources Recycling
    • /
    • v.18 no.5
    • /
    • pp.63-71
    • /
    • 2009
  • Recyclable wastes coming into material recovery facilities(MRFs) is mostly packed by plastic bag or sack bag. Bag rupturing device is essential to improve capacity and efficiency of MRFs. Bag opening works of MRFs is mostly done by numerous workers and shredder-type bag rupturing device. It often makes a problems; decreased capacity, shredded recyclables, worker safety by explosion and broken glasses, etc. In the present work, bag rupturing device with octagonal rotating blade drums has been developed to solve the existing problems and environment assessment is also performed during operation of the device. Capacity of the device was about 5.6 ton/hr at 8.2 rpm of drum revolution speed and 1.25 m/min of belt conveyor speed. It satisfied initial designed capacity(5.0 ton/hr) and max. capacity 8.8 ton/hr was achieved at 12.5 rpm of drum revolution speed and 1.50m/min of belt conveyor speed. Bag rupturing efficiencies on outer and inner bag were obtained at 100% and about 95.6% as average, respectively and original form of glass bottles in the bag was maintained without broken by about 96.5%. This result shows that the safety in hand sorting by the workers could be improved. As result of environmental assessment on the noise, vibration and particulates, the measured levels on noise, vibration and particulates show the below standard regulatory limits. It could be concluded that the problems of existing devices in MRFs could be solved by adopting the bag rupturing device with octagonal rotating blade drums in on-site operation.

Estimation of an Occupational Exposure Limit for Multi-Walled Carbon Nanotubes Manufactured in Korea (국내 일부 다중벽탄소나노튜브의 직업노출기준 추정)

  • Kim, Jong Bum;Kim, Kyung Hwan;Choi, Byung-Gil;Song, Kyung Seuk;Bae, Gwi-Nam
    • Journal of Environmental Science International
    • /
    • v.25 no.4
    • /
    • pp.505-516
    • /
    • 2016
  • With the development of nanotechnology, nanomaterials are used in various fields. Therefore, the interest regarding the safety of nanomaterial use is increasing and much effort is diverted toward establishment of exposure assessment and management methods. Occupational exposure limits (OELs) are effectively used to protect the health of workers in various industrial workplaces. This study aimed to propose an OEL for domestic multi-walled carbon nanotubes (MWCNTs) based on animal inhalation toxicity test. Basic procedure for development of OELs was examined. For OEL estimation, epidemiological study and quantitative risk assessment are generally performed based on toxicity data. In addition, inhalation toxicity data-based no observed adverse effect level (NOAEL) and benchmark dose (BMD) are estimated to obtain the OEL. Three different estimation processes (NEDO in Japan, NIOSH in USA, and Baytubes in Germany) of OELs for carbon nanotubes (CNTs) were intensively reviewed. From the rat inhalation toxicity test for MWCNTs manufactured in Korea, a NOAEL of $0.98mg/m^3$ was derived. Using the simple equation for estimation of OEL suggested by NEDO, the OEL of $142{\mu}g/m^3$ was estimated for the MWCNT manufacturing workplace. Here, we used test rat and Korean human data and adopted 36 as an uncertainty factor. The OEL for MWCNT estimated in this work is higher than those ($2-80{\mu}g/m^3$) suggested by previous investigators. It may be greatly caused by different physicochemical properties of MWCNT and their dispersion method and test rat data. For setting of regulatory OELs in CNT workplaces, further epidemiological studies in addition to animal studies are needed. More advanced technical methods such as CNT dispersion in air and liquid should be also developed.

A Study on the Nursing Profession as Stipulated by Health & Medical Laws of Korea (우리나라 보건의료법령에 명시된 간호에 관한 연구)

  • Kim, Eun-Young
    • Research in Community and Public Health Nursing
    • /
    • v.8 no.1
    • /
    • pp.116-132
    • /
    • 1997
  • The purpose of the study is to find out how laws related to the nursing profession can be improved by analyzing the rules and regulations concerning nursing. Furthermore, to help settle legal matters in the process of doing nursing work. The data used for the study are the Health and Medical Act, the Maternal and Child Health Act, the School Health Act, the Special Act for Health and Medical Service in Rural Areas, the Industrial Health & Safety Act and the Notice on Nursing Professional Courses analyzed by age and content. The results of the study are as follows : First, basic nursing practice includes 'nursing care for recuperation and assistance in medical treatment and in special areas including the pre-vention of disease, maintenance of health, control of environment, and other therapeutic activities. It is suggested that the phrase 'assistance in medical treatment' should be eliminated as it limits the basic nursing practice to the assistance of the medical treatment. Second, Article 56 of the Health & Medical Act prescribes a special nurse but it does not prescribe a specific job. Accordingly, the new provison concerning the specific jobs of a special nurse should be added or a job guide should be inseated. Third, it is prescribed that those who have completed the training course after obtaining a license are qualified to be a midwife, a special nurse and a nurse practitioner working in special areas. However, school nurses, occupational health nurses and maternal and health workers are required to obtain a nurse license, but not to take an additional training course. Nurses working in special areas should be legally recognized as nurse specialists. The regulations to control various qualification standards consistently should be established. Fourth, the qualifications and types of nurses by area prescribed by Article 54 of the Health and Medical Act are not consistent with those of special nurses as recognized by affiliated organizations of the Korean Nurse Association and some hospitals. Accordingly, the qualifications and types of special nurses should be adjusted in consideration of special nurses. Fifth, as Article 16, Paragraph 2 of the Health and Medical Act does not prescribe the type and scope of first - aid treatment that nurses can provide, the first-aid treatment of nurses might be considered as an unlicensed practice. The specific regulations regarding these matters should be established. Sixth, the contents of the nursing record, which are prescribed by Article 21 of the Health and Medical Act as a duty, include 1) matters concerning body temperature, pulse, breath and blood pressure 2) matters concerning drug prescription 3) matters concerning input and output 4) matters concerning the treatment and nursing care (Article 17 of the Enforcement Regulations, Health and Medical Act). However, these matters are limited to basic nursing care and assistance in medical treatment. The new recording methods on nursing process are suggested to be adopted legally. Seventh, the prescription right entrusted to nurses which are prescribed by the School Health Act, the Special Act on Health and Medical Service for Rural Areas, and the Industrial Health and Safety Act are not consistent with the rights of nurses as prescribed by the Health and Medical Act. New regulations prescribing the partial right for medical treatment entrusted to nurses in consideration of the restraint of time and place in emergency situations should be established.

  • PDF

A Study on Empowerment Process of the Disabled - Focused on Experience of 'Pre-Adulthood' - (장애인의 임파워먼트 과정에 관한 연구 - 성인기 이전의 경험을 중심으로 -)

  • Kim, Mi-Ok;Kim, Hee-Sung;Lee, Min-Young
    • Korean Journal of Social Welfare
    • /
    • v.57 no.1
    • /
    • pp.31-60
    • /
    • 2005
  • This study was performed to analyze empowerment process of the disabled. Participants were 11 disabled college students and they were individually face-to-face in-depth interviewed until data were saturated. This study used the grounded theory approach based on Strauss and Corbin(1998). With the qualitative constant comparative analysis, 105 concepts, 22 subcategories, and 12 categories were generated. In the axial coding, a paradigm model was proposed as follows: The central phenomenon of the empowerment process of the disabled adolescents was 'Rising from the Limits'. The causal conditions were 'Just living' and 'realizing disabilities'. The contextual conditions were 'Being excluded', 'But wishing', and 'Breaking down'. The intervening conditions were 'Without giving up' and 'Taking support'. The action/interaction strategies were 'Grasping own lifestyle' and 'Being proactive'. The consequences were 'Acquiring the self-control', 'Getting generosity', and 'Participating in society'. In the selective coding, the core category was 'to live together stately with grasping own lifestyle pro-actively as the disabled'. Based on the core category, three types and 4 stages of the empowerment process of the disabled adolescents were found. The types were 'Social change oriented type', 'Self-development oriented type', and 'Passive effort oriented type' and the stages took 'Isolation stage', 'Rising stage', 'Mastering stage' and 'Stately being together stage'. In particular, this process had the circulation structure of which these 4 stages are not terminated, and developed and repeated. In conclusion, these results convey to us the understanding and knowledge about empowerment process of the disabled as their healthy -whole and unique- development process. And some implications and suggestions for the social work services and theories about the disabled focusing on the pre-adulthood period.

  • PDF

An Exploration on the Applicative Potentials of the Late Modern Social Space to Deinstitutionalization of the Mental Health Field (정신보건영역의 탈시설화에 대한 사회적 공간이론의 탐색적 적용)

  • Choi, Myung Min;Kwon, Ja Young;Kim, Gi Duk
    • Korean Journal of Social Welfare
    • /
    • v.68 no.4
    • /
    • pp.225-246
    • /
    • 2016
  • This study aims to explore the theoretical and practical potentials of the late modern social space theories concerning deinstitutionalization issues in the field of the Mental Health. Deinstitutionalization, the process of converting the living space mentally ill people from facilities to the community, is a meaningful event realizing the modern ideology of human rights and welfare in social work territory. Although the continuos and accumulative efforts to realize the ideas of deinstitutionalization, which have focused on the ideological validity and the conditions and administrative supports needed for materialization, however, discussing the issues without analyzing late modern societal space neglects the constraints of the generic and comprehensive 'space' in which the deinstitutionalization can actually occur. Thus, this study attempts the following by analyzing the concrete reality of social space: focusing on deinstitutionalization in a larger social context, different from previous studies that discussed it on a normative and fragmentary level; and more concretely analyzing the realistic limits and challenges facing deinstitutionalization. In order to do this, previous literature related to deinstitutionalization is laid out and theories of late modern social space are studied. Based on this, the kinds of phenomenon that occur when this sort of late modern social space meets with the deinstitutionalization of mentally ill people are analyzed. Finally, based on the results, the study suggests several implications to realize the rights and welfare of mentally in the late modern space concerning deinstitutionalization.

  • PDF

Bone Formation Effect of the RGD-bioconjugated Mussel Adhesive Proteins Composite Hydroxypropyl Methylcellulose Hydrogel Based Nano Hydroxyapatite and Collagen Membrane in Rabbits

  • Kim, Dong-Myong;Kim, Hyun-Cho;Yeun, Chang-Ho;Lee, Che-Hyun;Lee, Un-Yun;Lim, Hun-Yu;Chang, Young-An;Kim, Young-Dae;Choi, Sung-Ju;Lee, Chong-Suk;Cha, Hyung Joon
    • Journal of Marine Bioscience and Biotechnology
    • /
    • v.7 no.2
    • /
    • pp.58-70
    • /
    • 2015
  • Injectable RGD-bioconjugated Mussel Adhesive Proteins (RGD-MAPs) composite hydroxypropyl methylcellulose (HPMC) hydrogels provide local periodontal tissue for bone filling in periodontal surgery. Previously we developed a novel type of injectable self-supported hydrogel (2 mg/ml of RGD-MAPs/HPMC) based porcine nano hydroxyapatite (MPH) for dental graft, which could good handling property, biodegradation or biocompatibility with the hydrogel disassembly and provided efficient cell adhesion activity and no inflammatory responses. Herein, the aim of this work was to evaluate bone formation following implantation of MPH and collagen membrane in rabbit calvarial defects. Eight male New Zealand rabbits were used and four circular calvarial defects were created on each animal. Defects were filled with different graft materials: 1) collagen membrane, 2) collagen membrane with MPH, 3) collagen membrane with bovine bone hydroxyapatite (BBH), and 4) control. The animals were sacrificed after 2 and 8 weeks of healing periods for histologic analysis. Both sites receiving MPH and BBH showed statistically increased augmented volume and new bone formation (p < 0.05). However, there was no statistical difference in new bone formation between the MPH, BBH and collagen membrane group at all healing periods. Within the limits of this study, collagen membrane with MPH was an effective material for bone formation and space maintaining in rabbit calvarial defects.

An Impact Assessment on Atmospheric Dispersion of Pesticide using AGDISP Model (AGDISP모델을 이용한 농약의 대기확산 영향평가)

  • Kim, Jeong-Hwan;Koo, Youn-Seo;Lee, Seung-Hoon
    • Journal of Environmental Impact Assessment
    • /
    • v.22 no.6
    • /
    • pp.547-556
    • /
    • 2013
  • Recently, golf courses have increased over the years because golf became popular leisure sport. Various environmental problems have been then issued by a golf course during constructing and running them. A problem of pesticide, which is serious among various environmental problems, from golf course has harmful effect on surrounding area and makes human suffer from acute and chronic diseases. Pesticides are used for the cost-effective managing of golf course and the amount of pesticides also increases as the number of golf course increase. Since the assessment of pesticides on near-by surrounding has been focused on water and soil media, studies related to atmospheric dispersion have been hardly attempted. The method to assess an impact of pesticide nearby agricultural production by the atmospheric dispersion using AGDISP(AGricultural DISPersal) model was developed and applied to the actual planned golf course located in Hongcheon, Gangwon. For implementing AGDISP, parameters were investigated from the golf course's land use planning map, pesticide spray device, Hong-Cheon weather station and etc. First of all, a kind of pesticide, a form of spraying pesticide, geographical features, weather data, and distance(golf course to plantation) were investigated to understand how to work these parameters in AGDISP. Restricted data(slope angle, droplet size distribution and solar insolation) sensitivity analysis of these parameters to estimate effect of pesticide nearby a plantation and a high relative contribution data of analyzed data was selected for input data. Ethoprophos was chosen as the pesticide used in the golf course and the amounts of pesticide deposition per annual agricultural productions were predicted. The results show that maximum amount of pesticide deposition through atmospheric dispersion was predicted $2.32{\mu}/m^2$ at 96 m where the nearest organic plantation exists. The residues of pesticide were also estimated based on the annul production of the organic and the deposition amount of the pesticide. Consequently, buckwheat, wheat and millet were likely to exceed maximum residue limits for pesticides in foods(MRL) and sorghum, corn and peanut were likely to exceed MRL by organic farming as well.

The national limits and issues of disaster response and management capabilities (국가의 재난대처 및 관리능력의 한계와 문제점)

  • Gong, Bae Wan
    • Convergence Security Journal
    • /
    • v.14 no.3_2
    • /
    • pp.99-109
    • /
    • 2014
  • Disaster is when, where, and how uncertainties, which might occur. Thus, for disaster response and management at the national and local governments have been made. Korea has established the Disaster and Safety Management Basic Act. Disaster Management has been made at the national level which is to prevent disasters and countries in order to protect citizens from harm and dangerous. Korean Disaster management system is well equipped with advanced countries. The Organization of national and local government are well-maintained substantially for the disaster activities and step-by-step manuals activities. Despite that uncertainty, due to the nature of the disaster, while infrequent, causing large-scale tragedy. Minimize the damage of the disaster as a disaster management efforts are needed. Normally a real disaster, a disaster situation, efforts are to be utilized efficiently, the effectiveness of the system will appear. But while the number of large-scale disasters, including the sinking of Sewol this time for the government and local governments see the response process, the system did not work and the manual existed in the cabinet. There was no Prevention and preparation activities, there was no integrated organization for the response management with expertise in the professional staff. Whenever a large disaster raised repeatedly as a problem, but there was a substantial change in formal but no improvement. It will not reduce the damage if the disaster management is not prepared for a revolutionary turning point.