• 제목/요약/키워드: Degree of Execution

검색결과 125건 처리시간 0.024초

6시그마 개념을 도입한 건설공사 생산성 향상에 관한 연구 (Six-sigma Based Approach to Improve Productivity for Construction Processes and Operations)

  • 한승헌;류호동;채명진;임건순
    • 대한토목학회논문집
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    • 제26권4D호
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    • pp.649-659
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    • 2006
  • 일회적이고 장기성을 갖는 건설산업의 특수성을 고려하면 건설공사의 생산성 향상에 대한 개념 및 활용대상이 개개인의 시각에 따라 다양해 질 수밖에 없다. 또한 세부작업단위의 생산성 향상에 대한 목표 및 개선수준의 설정도 구체성이 미흡하여 그 동안 연구되었던 린건설, JIT(Just-In-Time) 등 생산성 향상 기법의 성과가 가시화되지 못한다는 비판이 제기되어 왔다. 건설공사의 생산성을 높이기 위해서는 프로젝트를 구성하는 세부 단위 작업 별로 달성목표를 정량화하여 프로세스 개선 활동을 펼칠 수 있는 여건을 마련하는 것이 무엇보다 중요하며 이와 같은 목표아래 본 연구에서는 최근 제조업분야에서 전개되고 있는 전사적인 경영혁신기법인 6시그마 활동을 건설공사 생산성개념에 접목시킴으로써 건설공사 프로세스 개선 및 생산성향상에 대한 합리적 방안을 모색하고자 하였다. 이를 위하여 본 논문에서는 세부단위작업 사례분석을 통해 6시그마 개념을 적용하여 기존의 프로세스를 개선해 봄으로써, 건설자원 등의 변이(variation) 및 버퍼(buffer) 관리 등에 있어서 개선 목표의 설정 및 성과측정 등에 시그마 개념이 활용될 수 있는 방안을 제시하였다. 또한 이러한 시그마 수준의 향상에 따라 건설공사의 성과가 향상될 수 있음을 시뮬레이션을 통하여 검증하였다.

동적 사상 테이블 기반의 버퍼구조를 통한 Solid State Disk의 쓰기 성능 향상 (A Buffer Architecture based on Dynamic Mapping table for Write Performance of Solid State Disk)

  • 조인표;고소향;양훈모;박기호;김신덕
    • 정보처리학회논문지A
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    • 제18A권4호
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    • pp.135-142
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    • 2011
  • 본 연구는 플래시 메모리 기반의 고성능 SSD (Solid State Disk) 구조를 위하여 디스크 참조 특성에 적응적으로 구동하는 효율적인 버퍼 구조와 구동 기법을 설계한다. 기존 SSD는 삭제동작 횟수의 제약은 물론 읽기와 쓰기 동작에 대하여 비대칭적인 성능을 보이는 특징을 갖고 있다. 이러한 삭제동작 횟수와 쓰기 동작의 지연시간을 최소화 하기 위해서는 다중 플래시 메모리 칩들에 대해 쓰기 동작은 병렬적으로 수행하는 정도를 최대화하여 운영하여야 한다. 따라서 플래시 메모리 칩들에 대한 인터리빙 레벨 (interleaving level)을 최대화 하기 위하여, 본 논문에서는 혼합 위치 사상 기법 (hybrid address mapping)과 슈퍼 블록 (super-block) 기반의 SSD 구조에 대하여 성능 증대와 증가된 장치 수명을 제공하기 위한 효율적 버퍼 구조를 제안한다. 제안한 버퍼구조는 응용 수행특성을 기반으로 최적의 임의/순차쓰기를 구분하며, 수행 성능에 중요한 순차쓰기 정도의 크기를 증대시키는 동적 융합 방법, 구동되는 버퍼구조와 사상 테이블의 효율적인 관리 구조를 설계하였으며, 이를 통해 기존의 단순한 버퍼 운영기법에 비하여 35%의 성능향상을 제공한다.

자궁적출술 환자를 위한 critical pathway 개발과 적용효과 (Critical Pathway Development for the Hysterectomy Patients and its applied Effect)

  • 노기옥;박경숙
    • 여성건강간호학회지
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    • 제6권2호
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    • pp.234-257
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    • 2000
  • At present in the medical care, the study and effort for producing health service to consider efficiency, effectiveness, and quality are urgently called for because of the difficulty in the keen competition according to the inter- nationalization and opening, the operation in the medical institution service testing system, the change in the medical policy of KDRGs, and the lack of the health care cost increasing rate. As an alternative, the case management for the new management system is introduced in the U.S., and the Critical Pathway that is the method designing the contents of activity and its result has been developed and applied in order to anticipate and manage the patient-outcome for the realization of the cost-effective case-management. Thus, this study intended to analyze the effectiveness to obtain by developing the Critical Pathway presented as the method to improve the quality-betterment and cost effectiveness through the continuous and consistent patient management for the hysterectomy patient and applying it to the real practice. As a study method, this author formed a conceptual framework through considering five Critical Pathway used in the current U.S. and three Critical Pathway presented in the literature to develop the Critical Pathway for the hysterectomy patient, and made out the preliminary Critical Pathway through reviewing the old chart. This author made the verified the validity of the expert group about the developed Critical Pathway, and to confirm the possibility of practice application, completed and settled the final Critical Pathway after using the Critical Pathway to the hysterectomy patient from March 1st to 15th, 1997. Finally, to analyze the application-effect of the developed Critical Pathway, this author offered health care service applying the Critical Pathway to the hysterectomy patient from April 15th to August 31th, 1997. The guide for the Critical Pathway was carried out in advance by outpatient setting nurse for outpatient setting visit before the operation, and after hospitalization the primary nurse monitored the execution degree on the every duty. After discharge this author surveyed the complication through phone visiting, and one month after discharge surveyed the patient's reaction about the offered service when outpatient setting visit and analyzed the result. The source for health care cost was obtained by the statistics about the hospital charge which was offered by the General Business Department. The results were as follows. 1. It was decided that the vertical line of the Critical Pathway was made up of eight items such as monitoring/assessment, treatment, line/drains, activity, medication, lab test, diet, patient teaching, and the horizontal line of the Critical Pathway was made up of from hospitalization to discharge. 2. After the analysis of service contents through reviewing the old chart, it was decided that the horizontal line of the preliminary Critical Pathway was made up of from hopitalization to fourth postoperative day, and the vertical line of it was divided into eight items which were the contents to occur with the time frame of the horizontal line. 3. After the verifying the validity of the expert group about the preliminary Critical Pathway, the horizontal line was amended from hopitalization to third postoperative day, and taking their consensus, some contents of the horizontal line was amended and deleted. 4. From March 1st to 15th, 1997, to confirm the clinical suitability, this author offered eight hysterectomy patients the medical service through the Critical Pathway. The result was that three of them could be discharged at the expected discharge day, and the others later than that day. Supplementing the preliminary Critical Pathway through analyzing the cause of that delay- case, this author developed the final Critical Pathway. 5. There were no significant differences between the experimental and the control group in the incidence of complication(P > 0.05). 6. The 92.4% of experimental group was satisfied with the Critical Pathway service. 7. The length of hospital stay of the experimental group offered with the Critical Pathway service was 4.6 days and there was a significant difference that it was 1.3 days shorter than that of the control group(t=-29.514, P=0.000). 8. There wsa a significant difference that the mean medical charge per one patient of the experimental group offered the Critical Pathway service was cheaper \124,150 than that of the control group(t=-9.826, P=0.000). 9. The result that the author assumed and analyzed hospital income with the rate of turning bed was assumed that the increase of hospital income was \63,245,072 for that study, and the income increase was expected with \68,704,864 for a year. The result that this author applied the Critical Pathway to the hysterectomy patient have no differences in the incidence of complication, high satisfaction with that service, and the length of hospital stay decreased in the experimental group, and the mean hospital charge per one patient decreased, but hospital income increased. Suggestions for further study and nursing practice are as follows. 1. The study to apply the Critical Pathway for a year, verify the validity, and measure the effect repeatedly is needed. 2. To apply and manage the Critical Pathway effectively, the study to computerize it is needed. 3. The study to develop hospital-based Critical Pathway about other diseases or procedure, and measure the effect is needed.

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중도장애인의 레질리언스(Resilience) 과정에 관한 연구 (A Study on the Resilience Process of Persons with Disabilities)

  • 김미옥
    • 한국사회복지학
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    • 제60권2호
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    • pp.99-129
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    • 2008
  • 이 연구는 근거이론 방법을 활용하여 중도장애인의 레질리언스 과정을 분석한 것이다. 이를 위해 갑작스러운 사고로 장애를 갖게 된 중도장애인 8명을 심층 인터뷰하였다. 연구 결과, 총 393개의 개념이 도출되었고, 이를 45개의 하위범주, 18개의 상위범주로 유목화할 수 있었다. 중도장애인 레질리언스 과정의 패러다임 모형에서 인과적 조건은 '장애에 대해 모름', '너무 아파 힘듦', 심리적 고통으로 '마음 안으로 숨어듦'인 것으로 나타났다. 맥락적 조건으로는 '집에만 있어 무기력해지고', 장애인정이 어려워 '스스로 장벽을 쌓으며', 장애에 대한 '사회적 장벽'으로 좌절을 경험하는 것으로 나타났다. 또한 장애유형, 장애정도, 성(gender), 장애획득시기, 중도장애 여부 등에 따라 레질리언스에 차이가 있음을 보고하였다. 이러한 인과적 조건과 맥락적 조건에도 불구하고 중도장애인이 레질리언스를 갖게 되는 중심현상은 '긍정의 힘에 탄력이 붙음'으로 확인되었다. 이러한 중심현상을 촉진 혹은 억제하는 중재조건으로는 외적으로 가족, 친구, 주변사람, 제도의 지원을 통해 '혼자가 아님을 깨닫고', 내적으로 종교의 힘과 모델링을 통하여 '변화의 의지와 삶의 목표를 가지고 내일을 준비하는' 것으로 나타났다. 작용/상호작용전략은 '노력을 배가하고', '직접 찾아보며', '능동적으로 실행하기'로 나타났으며 그 결과 중도장애인들은 장애와 사회에 대한 '관점이 달라지고', 삶의 '여유가 생기며', 매사에 '적극적으로 참여함'을 알 수 있었다. 중도장애인 레질리언스 과정의 핵심범주는 '긍정의 힘을 믿으며 주도적으로 나의 삶 선택하기'이었으며, 이는 장애인 레질리언스에서 선택과 자기결정을 통한 주도성의 확보가 매우 중요함을 보여주는 것이다. 과정분석에서는 '고통', '낯섬', '성찰', '일상' 단계로 확인되었으며, 이 단계들은 단선적이기보다는 역동적인 순환과정으로 나타났다. 이 과정에서 중도장애인의 레질리언스 유형은 존재성찰형, 진로개척형, 은근노력형, 적극실행형으로 구분되었다. 또한 개인, 가족 및 친구, 사회 및 제도 차원의 위험 및 보호요인에 관한 상황모형을 정리함으로써, 향후 실천적 개입을 위한 기초 자료를 제시하였다. 본 연구는 국내에서 처음으로 중도장애인의 레질리언스 과정을 근거이론 방법을 활용하여 심층적 이해를 구축하면서 그 과정 및 유형, 상황모형 등을 구체적으로 밝힘으로써 중도장애인 연구에 관한 이론구축 및 정책적, 임상적 개입에 그 함의가 클 것으로 기대한다.

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병원 간호행정 개선을 위한 연구 (A Study for Improvement of Nursing Service Administration)

  • 박정호
    • 대한간호학회지
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    • 제3권1호
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    • pp.13-40
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    • 1972
  • Much has teed changed in the field of hospital administration in the It wake of the rapid development of sciences, techniques ana systematic hospital management. However, we still have a long way to go in organization, in the quality of hospital employees and hospital equipment and facilities, and in financial support in order to achieve proper hospital management. The above factors greatly effect the ability of hospitals to fulfill their obligation in patient care and nursing services. The purpose of this study is to determine the optimal methods of standardization and quality nursing so as to improve present nursing services through investigations and analyses of various problems concerning nursing administration. This study has been undertaken during the six month period from October 1971 to March 1972. The 41 comprehensive hospitals have been selected iron amongst the 139 in the whole country. These have been categorized according-to the specific purposes of their establishment, such as 7 university hospitals, 18 national or public hospitals, 12 religious hospitals and 4 enterprise ones. The following conclusions have been acquired thus far from information obtained through interviews with nursing directors who are in charge of the nursing administration in each hospital, and further investigations concerning the purposes of establishment, the organization, personnel arrangements, working conditions, practices of service, and budgets of the nursing service department. 1. The nursing administration along with its activities in this country has been uncritical1y adopted from that of the developed countries. It is necessary for us to re-establish a new medical and nursing system which is adequate for our social environments through continuous study and research. 2. The survey shows that the 7 university hospitals were chiefly concerned with education, medical care and research; the 18 national or public hospitals with medical care, public health and charity work; the 2 religious hospitals with medical care, charity and missionary works; and the 4 enterprise hospitals with public health, medical care and charity works. In general, the main purposes of the hospitals were those of charity organizations in the pursuit of medical care, education and public benefits. 3. The survey shows that in general hospital facilities rate 64 per cent and medical care 60 per-cent against a 100 per cent optimum basis in accordance with the medical treatment law and approved criteria for training hospitals. In these respects, university hospitals have achieved the highest standards, followed by religious ones, enterprise ones, and national or public ones in that order. 4. The ages of nursing directors range from 30 to 50. The level of education achieved by most of the directors is that of graduation from a nursing technical high school and a three year nursing junior college; a very few have graduated from college or have taken graduate courses. 5. As for the career tenure of nurses in the hospitals: one-third of the nurses, or 38 per cent, have worked less than one year; those in the category of one year to two represent 24 pet cent. This means that a total of 62 per cent of the career nurses have been practicing their profession for less than two years. Career nurses with over 5 years experience number only 16 per cent: therefore the efficiency of nursing services has been rated very low. 6. As for the standard of education of the nurses: 62 per cent of them have taken a three year course of nursing in junior colleges, and 22 per cent in nursing technical high schools. College graduate nurses come up to only 15 per cent; and those with graduate course only 0.4 per cent. This indicates that most of the nurses are front nursing technical high schools and three year nursing junior colleges. Accordingly, it is advisable that nursing services be divided according to their functions, such as professional, technical nurses and nurse's aides. 7. The survey also shows that the purpose of nursing service administration in the hospitals has been regulated in writing in 74 per cent of the hospitals and not regulated in writing in 26 per cent of the hospitals. The general purposes of nursing are as follows: patient care, assistance in medical care and education. The main purpose of these nursing services is to establish proper operational and personnel management which focus on in-service education. 8. The nursing service departments belong to the medical departments in almost 60 per cent of the hospitals. Even though the nursing service department is formally separated, about 24 per cent of the hospitals regard it as a functional unit in the medical department. Only 5 per cent of the hospitals keep the department as a separate one. To the contrary, approximately 12 per cent of the hospitals have not established a nursing service department at all but surbodinate it to the other department. In this respect, it is required that a new hospital organization be made to acknowledge the independent function of the nursing department. In 76 per cent of the hospitals they have advisory committees under the nursing department, such as a dormitory self·regulating committee, an in-service education committee and a nursing procedure and policy committee. 9. Personnel arrangement and working conditions of nurses 1) The ratio of nurses to patients is as follows: In university hospitals, 1 to 2.9 for hospitalized patients and 1 to 4.0 for out-patients; in religious hospitals, 1 to 2.3 for hospitalized patients and 1 to 5.4 for out-patients. Grouped together this indicates that one nurse covers 2.2 hospitalized patients and 4.3 out-patients on a daily basis. The current medical treatment law stipulates that one nurse should care for 2.5 hospitalized patients or 30.0 out-patients. Therefore the statistics indicate that nursing services are being peformed with an insufficient number of nurses to cover out-patients. The current law concerns the minimum number of nurses and disregards the required number of nurses for operation rooms, recovery rooms, delivery rooms, new-born baby rooms, central supply rooms and emergency rooms. Accordingly, tile medical treatment law has been requested to be amended. 2) The ratio of doctors to nurses: In university hospitals, the ratio is 1 to 1.1; in national of public hospitals, 1 to 0.8; in religious hospitals 1 to 0.5; and in private hospitals 1 to 0.7. The average ratio is 1 to 0.8; generally the ideal ratio is 3 to 1. Since the number of doctors working in hospitals has been recently increasing, the nursing services have consequently teen overloaded, sacrificing the services to the patients. 3) The ratio of nurses to clerical staff is 1 to 0.4. However, the ideal ratio is 5 to 1, that is, 1 to 0.2. This means that clerical personnel far outnumber the nursing staff. 4) The ratio of nurses to nurse's-aides; The average 2.5 to 1 indicates that most of the nursing service are delegated to nurse's-aides owing to the shortage of registered nurses. This is the main cause of the deterioration in the quality of nursing services. It is a real problem in the guest for better nursing services that certain hospitals employ a disproportionate number of nurse's-aides in order to meet financial requirements. 5) As for the working conditions, most of hospitals employ a three-shift day with 8 hours of duty each. However, certain hospitals still use two shifts a day. 6) As for the working environment, most of the hospitals lack welfare and hygienic facilities. 7) The salary basis is the highest in the private university hospitals, with enterprise hospitals next and religious hospitals and national or public ones lowest. 8) Method of employment is made through paper screening, and further that the appointment of nurses is conditional upon the favorable opinion of the nursing directors. 9) The unemployment ratio for one year in 1971 averaged 29 per cent. The reasons for unemployment indicate that the highest is because of marriage up to 40 per cent, and next is because of overseas employment. This high unemployment ratio further causes the deterioration of efficiency in nursing services and supplementary activities. The hospital authorities concerned should take this matter into a jeep consideration in order to reduce unemployment. 10) The importance of in-service education is well recognized and established. 1% has been noted that on the-job nurses. training has been most active, with nursing directors taking charge of the orientation programs of newly employed nurses. However, it is most necessary that a comprehensive study be made of instructors, contents and methods of education with a separate section for in-service education. 10. Nursing services'activities 1) Division of services and job descriptions are urgently required. 81 per rent of the hospitals keep written regulations of services in accordance with nursing service manuals. 19 per cent of the hospitals do not keep written regulations. Most of hospitals delegate to the nursing directors or certain supervisors the power of stipulating service regulations. In 21 per cent of the total hospitals they have policy committees, standardization committees and advisory committees to proceed with the stipulation of regulations. 2) Approximately 81 per cent of the hospitals have service channels in which directors, supervisors, head nurses and staff nurses perform their appropriate services according to the service plans and make up the service reports. In approximately 19 per cent of the hospitals the staff perform their nursing services without utilizing the above channels. 3) In the performance of nursing services, a ward manual is considered the most important one to be utilized in about 32 percent of hospitals. 25 per cent of hospitals indicate they use a kardex; 17 per cent use ward-rounding, and others take advantage of work sheets or coordination with other departments through conferences. 4) In about 78 per cent of hospitals they have records which indicate the status of personnel, and in 22 per cent they have not. 5) It has been advised that morale among nurses may be increased, ensuring more efficient services, by their being able to exchange opinions and views with each other. 6) The satisfactory performance of nursing services rely on the following factors to the degree indicated: approximately 32 per cent to the systematic nursing activities and services; 27 per cent to the head nurses ability for nursing diagnosis; 22 per cent to an effective supervisory system; 16 per cent to the hospital facilities and proper supply, and 3 per cent to effective in·service education. This means that nurses, supervisors, head nurses and directors play the most important roles in the performance of nursing services. 11. About 87 per cent of the hospitals do not have separate budgets for their nursing departments, and only 13 per cent of the hospitals have separate budgets. It is recommended that the planning and execution of the nursing administration be delegated to the pertinent administrators in order to bring about improved proved performances and activities in nursing services.

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