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제강분진을 이용한 침출수의 화학적 산화처리

  • 장윤영;강정우;정재현;배범한;박규홍;장윤석
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2001.04a
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    • pp.107-110
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    • 2001
  • 제철소에서 매년 대량 발생되어 주로 매립처분되고 있는 제강분진의 재활용 방안으로서, 폐수처리분야에 널리 사용되고 있는 펜톤산화공정의 반응촉매원인 Fe 공급원으로서 제강분 진의 활용 가능성에 대한 연구를 수행하였다. 본 연구에서는 포항제철소에서 제철부산물로 발생되는 제강분진을 전처리 없이 산화촉매로 사용하여 김포 수도권 매립지의 침출수 처리 공정에서 펜톤산화조에 유입되는 원수를 대상으로 과산화수소에 의한 산화처리 실험을 수행하였다. 반응은 회분식으로 수행하였으며, 일반적으로 알려진 펜톤산화반응의 주요 반응조 건인 운전 pH, 과산화수소 주입량 및 분할주입, 제강분진의 주입량 등의 변화에 따른 각 조 건별 시간에 따른 반응결과를 알아보았다. 또한 기존의 Fe 공급원으로 사용되고 있는 FeSO$_4$와 처리성능 및 적용조건에 대한 비교 실험도 수행하였다. 침출수 수질변화는 TOC (Total Organic Carbon) analyzer를 사용하여 측정한 TOC값으로 나타냈으며, pH controller 와 정량펌프를 사용하여 HCl과 NaOH주입을 통해 반응기간동안 일정 pH를 유지하였다. 본 연구결과, 최적 pH 조건인 4에서 최대 75% TOC 제거율을 나타내었으며, 대부분의 반응은 30분 이내에 이루어졌다. 주어진 실험조건에서 FeSO$_4$와 비교하여 반응속도와 처리효율에서 향상된 결과를 나타내었으며 반응 후 응집침전실험에서도 보다 높은 처리효과를 얻을 수 있었다. 결론적으로, 과산화수소/제강분진 시스템을 이용한 화학적 산화처리방법은 경제성과 처리성능에서 기존의 펜톤산화공정의 대체방안으로서 향 후 적용가능성이 높을 것으로 기대된다.g, 200 mg/kg, 300 mg/kg의 순서로 함량이 점차 감소하는 결과를 얻을 수 있었다. 이상의 결과를 종합하여 볼 때 가자 메탄올추출물은 PQ 유도독성을 신장 및 폐조직에서 효과적으로 경감시키는 것으로 나타났다.ted retailers ("sellers") must accept end-of-life items returned to them by the consumers. At the local level, Taipei City implements a pay-as-you-throw program, whereby citizens pay waste collection and treatment fees through the purchase of special trash bags approved by the Taipei City Government. However. recyclables that are separated by citizens are collected free-of-charge by the City. Taichung City and Kaohsiung City, on the other hand, enforce mandatory sorting schemes, whereby citizens face penalties if they don't separate recyclables from the trash before pick-up. These programs have resulted in a significant reduction in municipal waste. Per capita waste collected per day has dropped from 1.143

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A Study On The Methods Of Managerial Improvement Of The Hotel s Room Sales Promotion (호텔 객실 판매촉진운영 개선방안에 관한 연구)

  • 신형섭
    • Journal of Applied Tourism Food and Beverage Management and Research
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    • v.8
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    • pp.123-144
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    • 1997
  • This study, by setting the systems of room sale promotion, analyzing the actual status and the present working state with its center on the 'RHotel' that is a special grade-two hotel and the sales promotion activities of each type, intends to understand the presentstatus of the hotel and present its problems and the method for improvement. The strategy of salespromotion and the ineffectivenessof the system organization were found to be imminent in the sales promotion activities as its problems, and the importanceis being not attached to the actual substance rather than to the actualresults, such as the advertisement and publicity strategies, the irrationality of sales personnel controland its evaluation method, and therefore, the goal-oriented control is not being takenad its problems are emerging. Therefore, as an improvement plan, we ought to put the plan of the hotel merchandising into action for customers to buy what they want, the establishment of the customer-oriented sales promotionservice and the communication channel using the brand-new managerial skills, systemaizesales promotion method sand strategies, develop the organizational and systematic strategies develop the organizatinal and systemactic strategies and goods for the sake of the image-making and room sales promotion of hotels, develop the activation ways of flexible operation, and also need to develop the skills of sales promotion. Accordingly, by doing irrationalsales activities in the system and the promotion with its center on the sales promotion department, and it sis urgently required that we streng then the comodity developments fitting the hotel's traits, such as uniformpolicy of cost, mass-communicationactivities for sales promotion, the improvement of non-effectiveness, and advertisement of hotel items, and the publishing of public relation books. Therefore, the best weapon for hotels before other purchaseis to be discriminatized from other competitive hotel with theunderstanding of the psychology and activities of customers, and the communicatin with customers, and to set up organicprograms of sales promotionstrategies. Also we must promote our sales in accordance with the desire of new customers, gater the market information of customers, all the time, and systematize the facility improvement, managerial policy, business strategiescorresponding with the desire of customers. By doing so, we are able to seek, at the same time, both the satis faction of customers and the sales maximization of the hotels that will perfrom the activities of sales promotion and management.

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Development of a Curriculum for Rehabilitation Nurse Specialist Program (재활 전문간호사 교육과정안 개발연구)

  • Kang, Hyun-Sook;Suh, Yeon-Ok;Lee, Myung-Hwa;Kim, Jeong-Hwa;Lim, Nan-Young;Suh, Moon-Ja;Lee, Jeong-Ja;Park, In-Joo;Cho, Bok-Hee;Kim, In-Ja;So, Hee-Young;Song, Chung-Sook;Lee, Sung-Sook;Hwang, Ok-Nam;Park, Sang-Yeun;Yoo, Yang-Sook
    • The Korean Journal of Rehabilitation Nursing
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    • v.4 no.2
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    • pp.179-186
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    • 2001
  • The purpose of this study is to develop a systematic and efficient curriculum for the rehabilitation nurse specialist program. This research was carried out as a group work of 15 experts in order to share various opinions about the curriculum, and also through literature review. Articles, curriculums of other Clinical Nurse Specialist Programs, medical laws guidelines, as well as Clinical Nurse Specialist Program from the Korean Nurses Association were reviewed, and the issue was discussed throughly via group meetings. The developed curriculum is as follows: 1. Educational philosophy lies in the fact that the rehabilitation nurses support the patients to maximize their potential and functional level, so that they could maintain healthy state and re-adapt to changed environment. Furthermore the rehabilitation nurses are disposed of arbitrary decision power under their own responsibility, thus they take charge of welfare and healthy environment of the local society through the patients(subjects) and local resources. 2. Educational goals are to train rehabilitation nurse specialist, who correspond to the social needs, so to say, those who have the knowledge and skills for nursing practice, education and research. 3. The curriculum consists of 37 credits, of which 24 credits are based on lectures and 13 credits based on clinical practice. General courses are 3 subjects (5 credits) ; nursing theory, nursing research, and laws/ethics. Mandatry courses are 8 subjects with 19 credits; advanced physical assessment, pharmacology, pathophysiology, issues in rehabilitation nursing, advanced rehabilitation nursing intervention I, advanced rehabilitation nursing intervention II, sports physiology, special rehabilitation nursing intervention. As for the clinical practice courses, assessment and evaluation for rehabilitation(64 hours), community and home based rehabilitation nursing(128 hours), hospital based rehabilitation nursing(128 hours), institution based rehabilitation nursing(96 hours) would be treated. 4. Contents of the curses were developed to correspond with the courses' objectives and specific items. 5. Evaluation would be carried out both in the lecture and in the clinical practice. The knowledge and skills of the students would be measured to ensure full validity and credibility. However this developed curriculum should be continuously modified and updated in more desirable direction.

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The Development of Educational program on NCS-Based Medical expense management and Examination claim (의료정보시스템을 활용한 NCS 기반 진료비 관리 및 심사청구 교육프로그램 개발)

  • Choi, Joon-Young
    • The Journal of the Korea institute of electronic communication sciences
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    • v.11 no.10
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    • pp.1009-1016
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    • 2016
  • In this study, an educational program was developed. The program can perform the claim for examination of medical expense, which is one of NCS Competence Unit Elements for hospital administration. Considering various coding to complex compute and process, VB.Net was employed for this development. For database, ACCESS Database was used because it is easy to learn and use. The learning effects by the developed program are expected to be as follows. First, the composition of medical expense can be understood by analyzing Medical history and then selecting insurance code according to the Standard of Medical Care Code. Second, unit cost per score can be learned according to hospital class. Third, selection of Column (medical materials) and Column II(medical practice) can classify items of additional ratio. Fourth, because patient's payment rate on hospitalization and meal expense and use of special equipment are differently applied, user can know patient's payment rate by type and can calculate it. Fifth, additional amount is the amount calculated by additional ratio of Column II(medical practice), and user can learn additional ratio according by insurance type and hospital class. Sixth, user can learn self-pay rate by hospital class and understand the process that self-pay amount and claim amount are calculated according by self-pay rate.

Development of Video Work Manual for Rock-Drill Data In Fire Service (소방에서의 도상훈련 기초자료 영상화작업 매뉴얼 개발)

  • Cho, Jae-Kwan;Park, Hee-Jin;Hwang, Inn;Kwon, Hayrran
    • The Korean Journal of Emergency Medical Services
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    • v.6 no.1
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    • pp.103-128
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    • 2002
  • As a result of trying the various manufacturing methods considering the reality of manpower and equipments with this manual, the following standardized procedures and contents can be suggested. (1) Since tools presenting Rock-Drill data must formalize the order of explanation although explainers are different, it will be valid that it is configured by existing power point method rather than by web document type. Composition of contents are selected on the basis of defence card and survey and then 8 items including initial screen, peripheral conditions, mobilization route, general conditions, use and structure by floor, department of vehicle consideration in activities and end screen are included. (2) Making methods and cautions of data included and used in power point are as follows ; - It was most effective that objects of fire fighting and location of neighboring fire fighting water were expressed by electronic map and drawing of inner building was made by scanning it after paining general architecture drawing(plan by each floor) rather than using drawing tools of EXCEL program or CAD drawing. And it was helpful to simplify contents of architecture drawing to wall, stairs and gate in understanding them. - Photographing of video data should be taken to show available fire fighting facilities in fire, use of planned space and the whole inner structure of each floor from the inside of fire fighting buildings and to display play time between 10 sec. and 1 min, for obstacles to distance from adjacent buildings or passage of special vehicles and fire fighting water from the outside of the building. - File format of video data taken in this way is most suitable to use wmv(window media video) or asf(advanced streaming format) type in consideration of time required for export, screen quality, file capacity and play type in Rock-Drill through network. - Still screen(photo) is more effective to express the department of fire fighting vehicles or other equipments than using video. (3) In configuration work of power point, hyper link was used most and configured to see any part at any situation like web document and then uniformity of presentation order of power point was complemented. (4) In case of sales facilities with the area of $35.557m^2$, the time of 22 hours and 30 minutes for five days was taken with five persons. Therefore, when eight-hour works a day were calculated, the whole process of video work for Rock-Drill can be finished with three day works.

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A Survey on Weight Control Diets Practiced by College Women in Taegu and Kyung Buk (대구 , 경북지역 여자대학생의 체중조절 방법과 생활 태도에 관한 조사)

  • Park, Myeong-Hui;Choe, Yeong-Seon
    • Journal of the Korean Dietetic Association
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    • v.4 no.2
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    • pp.200-211
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    • 1998
  • Most of college women are interested in their appearances, and those whose body weights are normal or even underweight try to lose weight. Many methods for weight control diets practiced by college women are unsound and irrational so that some side-effects should be watched out. The present study was aimed to investigate methods of diets, food habits, behaviors, and side effects of weight control and to suggest sound weight loss schemes for college women. The subjects were 353 college women living in Taegu and Kyung Buk area, comprising 178 women who have tried weight control diets and 175 women who have not tried diets. The items included in questionnaires were food habits, food behavoirs, food frequency, physical activity status, 24-hour daily activity record, height, weight, etc., and the survey was conducted in September 1997. There was no difference in body mass index between college women who have tried diets(20.1$\pm$2.26) and women who have not tried diets(19.3$\pm$1.58), and 24.2% of those who have tried diets had body mass index under 19. The leading reason for diets was to make better fitting for costumes(67%). While women who have tried diets also tried to exercise more, they tended to overeat than women who have not tried diets. Mean of food habit scores(9.33 vs 9.32) which corresponded to "poor" habit and food frequencies were not different with or without experiences of diets. This indicated that diets were not related to actual changes of food habits and food intakes. Diet methods used frequently by college women were relying on special diet foods(25.4%), fasting(24.9%) and exercise(22.6%). Trying both exercise and diet was practiced by only 5.1% of the subjects who have tried diets. The duration time of diets was mostly in the range of 1 week to 1 month, and the longer diet period was, the more weight loss was. The frequent side effects due to diets were anemia(41.8%) and enervation(23.7%). Activity coefficients were lower in those who have tried diets(1.38$\pm$0.13) than those who have not tried diets(1.41$\pm$0.19). Women who have tried diets spent more time on reading newspapers and magazines and on watching TV. This study indicates that college women who have tried diets practiced irrational diets for weight reduction and experienced undesirable side-effects. Therefore scientific and systematic weight reduction programs accompanying balanced diets and proper exercise with behavior changes should be developed.

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Recent Advancement on the Knowledges of Meiotic Division (I) (減數分裂, 最近의 進步(I))

  • 한창열
    • Korean Journal of Plant Tissue Culture
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    • v.25 no.6
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    • pp.453-475
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    • 1998
  • During the 100 years since the initial discovery of meiotic phenomenon many brilliant aspects have been elucidated, but further researches based on light microscopy alone as an experimental tool have been found to have some limits and shortcomings. By the use of electron microscopy and armed with the advanced knowledges on modern genetics and biochemistry it has been possible to applu molecular technology in gaining information on the detailed aspects of meiosis. As synapsis takes place, a three-layered proteinous structure called the synatonemal complex starts to form in the space between the homologous chromosomes. To be more precise, it begins to form along the paired chromosomes early in the prophase I of meiotic division. The mechanism that leads to precise point-by-point pairing between homologous chromocomes division. The mechamism that leads to precise point-by-point pairing between homologous chromosomes remains to be ascertained. Several items of information, however, suggest that chromsome alignment leading to synapsis may be mediated somehow by the nuclear membrane. Pachytene bivalents in eukaryotes are firmly attached to the inner niclear membrane at both termini. This attached begins with unpaired leptotene chromosomes that already have developed a lateral element. Once attached, the loptotene chromosomes begin to synapse. A number of different models have been proposed to account for genetic recombination via exchange between DNA strands following their breakage and subsequent reunion in new arrangement. One of the models accounting for molecular recombination leading to chromatid exchange and chiasma formation was first proposed in 1964 by Holliday, and 30 years later still a modified version of his model is favored. Nicks are made by endomuclease at corresponding sites on one strant of each DNA duplex in nonsister chromatid of a bivalent during prophase 1 of meiosis. The nicked strands loop-out and two strands reassociate into an exchanged arrangement, which is sealed by ligase. The remaining intact strand of each duplex is nicked at a site opposite the cross-over, and the exposed ends are digested by exonuclease action. Considerable progress has been made in recent years in the effort to define the molecular and organization features of the centromere region in the yeast chromosome. Centromere core region of the DNA duplex is flanked by 15 densely packed nucleosomes on ons side and by 3 packed nucleosomes on the other side, that is, 2000 bp on one side and 400 400 bp in the other side. All the telomeres of a given species share a common DNA sequence. Two ends of each chromosome are virtually identical. At the end of each chromosome there exist two kinds of DNA sequence" simple telpmeric sequences and telpmere-associated sequencies. Various studies of telomere replication, function, and behabior are now in progress, all greatly aided by molecular methods. During nuclear division in mitosis as well as in meiosis, the nucleili disappear by the time of metaphase and reappear during nuclear reorganizations in telophase. When telophase begins, small nucleoli form at the NOR of each nucleolar-organizing chromosome, enlarge, and fuse to form one or more large nucleoli. Nucleolus is a special structure attached top a specific nucleolar-organizing region located at a specific site of a particular chromosome. The nucleolus is a vertical factory for the synthesis of rRNAs and the assenbly of ribosome subunit precursors.sors.

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Validation Study of Behavior Problems Inventory-01 among Korean Children and Adolescents (한국판 문제행동 평가도구(Behavior Problems Inventory-01) 표준화 연구)

  • Choi, Miji;Kim, Yeni;Ban, Ji-Jeong;Hwang, Samuel Suk-Hyun;Kim, Bung-Nyun;Yang, Young-Hui
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • v.28 no.4
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    • pp.220-227
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    • 2017
  • Objectives: The purpose of this study was to examine the reliability and validity of the Korean version of the Behavior Problems Inventory (BPI-01) among children and adolescents aged between 3 and 18. Methods: The control group consisting of one hundred children and adolescents was recruited from schools and the patient group consisting of forty one children and adolescents with autism spectrum disorder were recruited from a hospital. We compared the measurements of both groups. To assess the concurrent validity of the BPI-01, we compared the problem behavior index of the Korean Scale of Independent Behavior-Revised (K-SIB-R) and, to assess the discriminant validity, we compared the Korean version of the Child Behavior Checklist (K-CBCL). The Cronbach's alpha of the BPI-01 was measured to assess its reliability. Correlation analyses between the BPI-01 and the other scale were carried out to examine the former's concurrent and discriminant validity. Results: The patient group showed a significantly higher score for all three subscales of the BPI than the control group. The Cronbach's alpha was 0.92 for the total severity score of the BPI and ranged between 0.67-0.89 for each subscale in the patient group. All subscales of the BPI-01's, i.e., self injurious behavior, stereotyped behavior and aggressive/destructive behavior, were significantly correlated with the corresponding subscales of the K-SIB-R. The BPI-01 generally did not demonstrate any significant correlation with emotional items such as anxiety/depression in the K-CBCL. Especially, the BPI-01's stereotyped behavior subscale showed little correlation with externalizing behaviors such as social problems and aggressive behaviors. Conclusion: This study found that the Korean version of BPI-01 is a reliable and valid behavior rating instrument for problem behavior in developmental disabilities among children and adolescents.

A Study on the Management of Local Channel and Renewed License of Cable TV System Operator in Korea (케이블TV SO의 지역채널 운영 및 재허가 심사에 관한 연구)

  • Jung, In-Sook;Chung, Sang-Yune
    • Korean journal of communication and information
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    • v.54
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    • pp.58-75
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    • 2011
  • This study explores the management of cable local channel and its related issue of renewed license. Programming of the local channel is the special obligation duty on the cable system operators(SO) under the article 70 (3) of the Broadcast Act. The law provides that SO should operate a local channel which produce, program and transmit the local information, a broadcast program guide and the official announcement items etc. under the conditions as prescribed by Presidential Decree. And the article 55 of the Enforcement Decree defines the scope of broadcast program which transmit through the local channels. And the Korea Communications Commission(KCC) grants a renewed licence 3-5 years based on the level of contribution to the development of local community under the article 31 of the Broadcasting Act and the Rules of Broadcast Evaluation. However, the management of local channel does not give the operators real benefit for the investment of a significant cost, and it could be a reason why the local channel programming has not been vitalizing despite of the legal coercion. To solve the several research questions, this study used in-depth interviews with the experts concerned and literature review for the government documents. The result shows that each SO local channel schedule almost 24 hour a day, but much of them is the repeat programming. In addition to that, the outcome reveals that the scale of the cost investment on the local channel is decreasing and the evaluation score of its management is not so positive figures. These result indicates that the policy of the cable local channel needs revised policy alternatives or paradigm on the basis of realistic goals.

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A Comparison of the Sensory Processing of Children With and Without Spastic Diplegia (경직형 양하지 마비 아동과 일반아동의 감각처리 능력 비교)

  • Kim, Bo-Ram;Shin, Ji-Eun;Kim, Kyeong-Mi
    • The Journal of Korean Academy of Sensory Integration
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    • v.13 no.2
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    • pp.21-29
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    • 2015
  • Objective : This study compares sensory processing ability of children with and without spastic diplegia. In addition, it investigates characteristics of sensory processing differentiated by developmental phase such as pre-school age versus school age. Methods : Participants in this study are ordinal children without specific condition and children with spastic diplegia who are aged 3 to 10 years olds. Using Short Sensory Profile (SSP), sensory processing function of the participants was measured. The survey was distributed to caregivers of the children from November, 2013 to February, 2014, and it was suggested that the caregivers to record the questionnaire directly after approval from a rehabilitation hospital, a university hospital, welfare center, day care center, preschool and elementary school to participate in our study. Results : Group of children with spastic diplegia showed lower score than group of children with no special condition in the total score and the each score of all items of Short Sensory Profile. There was significant difference between the two groups in terms of the total score of sensory processing and the 5 factors except tactile sensitiveness and taste/smell sensitiveness among the 7 factors of test. In the comparison of different age groups, pre-school age group showed lower total score than school age group. Conclusion : This study provides a foundational evidence that can be used when therapist evaluate sensory processing function of children with spastic diplegia. There is need for more study about sensory processing functions of various types of children with cerebral palsy.