다발형 폴리아미드섬유 보강 숏크리트 현장 적용성 평가

윤지현,전중규,전찬기,이수철,Yoon, Ji-Hyun,Jeon, Joong-Kyu,Jeon, Chan-Ki,Lee, Soo-Choul 한국건설순환자원학회 2012 한국건설순환자원학회지 Vol.7 No.2

터널현장의 숏크리트 시공에 사용되는 강섬유 보강 숏크리트는 강섬유의 강성이 크고 중량이 무거워 숏크리트 시공상 어려움이 있으며, 강섬유의 부식과 높은 반발률 등이 개선사항으로 요구되고 있다. 이에 본 연구에서는 강섬유 보강 숏크리트의 단점을 개선하기 위하여 폴리아미드섬유를 혼입한 숏크리트를 제안하고, 현장 적용성 평가를 위하여 시험시공 결과를 제시하였으며, 그 결과 다음과 같은 결론을 얻었다. 1) 폴리아미드섬유 보강 숏크리트의 역학적 성능은 국내의 터널관련 설계기준을 만족하며, 기존 강섬유 보강 숏크리트와 동등 수준의 역학적 성능을 나타내었다. 2) 폴리아미드섬유 보강 숏크리트는 강섬유 보강 숏크리트에 비해 시공시 반발률이 저감되어 시공성 뿐만 아니라 경제성, 품질, 친환경성 측면에서 우수한 숏크리트라 할 수 있다. Steel fiber reinforced shotcrete in tunneling construction has some problems in terms of constructability, durability and lots of rebound wastage. In order to resolve these problems, this pater proposes polyamide fiber reinforced shotcrete technology. And this paper presents the results of experimental construction of the polyamide fiber reinforced shotcrete technology. The results of the study are as follows. 1. The polyamide fiber reinforced shotcrete suggested in this paper shows outstanding mechanical performance that meets various Korean tunnel construction design criteria. 2. In addition, the results of experimental constructions show that the polyamide fiber reinforced shotcrete creates less rebound and wasted product than the steel fiber reinforced shotcrete. Based on the above results, it is concluded that the polyamide fiber reinforced shotcrete technology can be used as economical and environmentally friendly construction of tunnel.

한의 암 레지스트리 연구를 위한 암 환자의 한방병원 진료현황에 대한 전문가집단 설문조사

윤지현,박수빈,김은혜,이지영,윤성우,Yoon, Jee-Hyun,Park, Su Bin,Kim, Eun Hye,Lee, Jee Young,Yoon, Seong Woo 대한암한의학회 2021 大韓癌韓醫學會誌 Vol.26 No.1

Objective: This study aimed to evaluate which information of cancer patients should be collected for the Korean medicine cancer registry in order to assess the efficacy and safety of Korean medicine (KM) treatment and to identify Korean medical prognostic predictors. Methods: A total of fifteen Korean medical specialists completed an online survey questionnaire including items about general characteristics of cancer patients and clinical practice patterns. Results: The four main types of cancer at Korean medical hospitals were breast, lung, stomach, and colorectal cancer. The majority of patients with cancer at Korean medical hospitals were in the advanced or metastatic stage (50.0%). The prominent purposes of KM treatment were to alleviate cancer-related symptoms, reduce the side effects of conventional therapy, and improve quality of life. The major options for treatment were traditional herbal medicine (THM), acupuncture, moxibustion, thermotherapy, pharmacoacupuncture, and meditation, with THM being the most frequently used (35.7%). Almost all Korean medical specialists (93.9%) used syndrome differentiation in clinical practice and identified over half the cancer patients as deficiency syndrome (57.2%). Conclusion: Physicians considered the primary goal of KM treatment for cancer patients to be symptom management since advanced or metastatic stage patients were the majority at Korean medical hospitals. THM were the most common treatment option and syndrome differentiation was used by almost all physicians. Further research is needed to monitor and ensure optimal KM treatment for patients with cancer.

온침으로 호전된 항암화학요법 유발 말초신경병증 치험 1례

윤지현,박수빈,이지영,김은혜,윤성우,Yoon, Jee-Hyun,Park, Su Bin,Lee, Jee Young,Kim, Eun Hye,Yoon, Seong Woo 대한한방내과학회 2021 大韓韓方內科學會誌 Vol.42 No.2

Objective: The purpose of this study is to report the effects of warm needling in a patient with cancer who had chemotherapy-induced peripheral neuropathy (CIPN). Methods: A 46-year-old Korean female outpatient diagnosed with malignant ovarian cancer was treated with warm needling therapy on the foot acupuncture points for CIPN. Neuropathic symptoms and quality of life were assessed using the numeric rating scale (NRS) and the functional assessment of cancer therapy/Gynecologic Oncology Group neurotoxicity (FACT/GOG-NTX) score. Results: After 6 months of treatment, the patient showed a reduction in the severity of CIPN symptoms and an improvement in the quality of life, although the severity of symptoms fluctuated as the patient underwent chemotherapy sessions. Conclusion: This study suggests that warm needling may be an effective treatment for CIPN.

지속적 프로세스 개선을 위한 6시그마와 BPM 통합 모형

윤지현,정재윤,Yoon, Ji Hyun,Jung, Jae-Yoon 한국빅데이터학회 2017 한국빅데이터학회 학회지 Vol.2 No.1

6시그마는 지난 20여 년간 제조 및 서비스 등의 산업에서 프로세스 개선을 위하여 꾸준히 적용되어왔다. 그럼에도 불구하고 6시그마는 Define 단계에서 의미있는 프로젝트를 계속 발굴하기 힘들고 Control 단계에서 지속적인 측정 및 통제가 쉽지 않다는 문제가 지적되었다. 이를 해결하기 위하여 개선 프로세스의 지속적인 통제와 관리를 원활히 할 수 있는 체계가 요구되며, 비즈니스 프로세스 관리(BPM) 시스템이 효과적 대안이 될 수 있다. 본 연구에서는 프로세스 운영 및 분석에서 누적된 데이터를 중심으로 지속적 프로세스 개선을 실현하기 위한 목적으로 6시그마와 BPM의 통합 모형을 제시하고, 프로젝트 수행을 위하여 상호 데이터기반으로 프로세스를 분석, 개선, 모니터링하는 과정을 설명한다. 이를 통하여 6시그마와 BPM의 장점을 결합하여, 지속적으로 업무를 개선하고 관리함으로써 전사적인 경영성과를 극대화할 수 있을 것으로 기대한다. Six Sigma has been adopted for the last two decades in many industries of manufacturing and service business to implement processs improvement. The methodology has difficulties in discovering target projects in the Define step and in controlling continuous measure and control in the Control step. To address the problem, more advanced system is required to support continuous control and management, and business process management (BPM) can be an effective solution for this problem. In this research, we introduce integrated models of Six Sigma and BPM for the purpose of realizing continuous process improvement, and explain the procedure of analyzing, improving, and monitoring the processes based on the data which has been accumulated in business process execution. It is expected that this integrated approach can maximize business performance by improving and managing business continuously on the integrated platform of two business innovation strategies, Six Sigma and BPM.

암 환자의 마약성 진통제로 인한 변비 치료법에 대한 문헌고찰

윤지현,김은혜,이지영,윤성우,Yoon, Jee-Hyun,Kim, Eun Hye,Lee, Jee Young,Yoon, Seong Woo 대한암한의학회 2020 大韓癌韓醫學會誌 Vol.25 No.2

Objective: Constipation is the most common adverse effect of opioid analgesic therapy in cancer patients. This can be associated with physical and emotional distress to cancer patients. The purpose of this study is to review the standard and alternative interventions of the management for opioid-induced constipation (OIC). Methods: The studies were searched from databases, including Pubmed, Google scholar, KISS, NDSL, and OASIS. The main search terms included such as constipation, opioid, opioid-induced constipation, cancer, management, herb, and acupuncture. Results: The prevention and usual care of constipation is a key tool for the management of OIC. Also, prophylactic laxatives starting concurrently with opiates helped to prevent developing constipation. Peripherally acting μ-opioid receptor antagonists (PAMORAs) significantly reduced OIC and well-tolerated. In addition, acupuncture, herb medicines, and interferential current or transcutaneous electrical nerve stimulation to acupoints had effectiveness in reducing constipation. Conclusion: Preliminary data indicate that PAMORAs and Traditional Korean Medicine may be considered as the management of unresolved OIC. However, due to the limited articles, more systematic and rigorous clinical trials are needed.

한국표준원전 주급수 밸브의 파괴인성 평가

윤지현,홍석민,이봉상,Yoon, Ji-Hyun,Hong, Seokmin,Lee, Bong-Sang 한국압력기기공학회 2015 한국압력기기공학회 논문집 Vol.11 No.1

The fracture toughness of 2.25Cr-1Mo cast steel (SA217-WC9) samples which were taken from the check valves of feed water piping of Korean Standard Nuclear Power Plant(KSNPP) was measured by Master Curve method. The measured $T_0$ reference temperature of SA217-WC9 steel was $-30^{\circ}C$. The obtained $T_0$ was compared to the derived value from Charpy impact test data following to SINTEP procedure. The heat-to-heat variation in fracture toughness of SA217-WC9 steel was observed. It was found that the low toughness of a heat of SA217-WC9 steel was attributed to the coarse MnS inclusion originated by high sulfur content as the results of microanalyses.

저발열형 Premixed Cement를 사용한 콘크리트의 기초물성 평가 및 수화열 해석에 관한 연구

윤지현,전중규,전찬기,김기형,Yoon, Ji-Hyun,Jeon, Joong-Kyu,Jeon, Chan-Ki,Kim, Ki-Hyung 한국건설순환자원학회 2014 한국건설순환자원학회 논문집 Vol.2 No.1

본 연구에서는 시멘트와 광물질혼화재인 고로슬래그미분말과 플라이애쉬를 미리 혼입한 Premixed Cement를 사용한 콘크리트와 수축저감제가 혼입된 3성분계 콘크리트, OPC 100%의 콘크리트에 대하여 기초물성 평가로 공기량, 슬럼프, 압축강도 및 건조수축 시험을 수행하고, 수화열 해석을 수행하여 Premixed Cement를 사용한 콘크리트의 현장 적용성을 검토하였다. 검토결과 Premixed Cement를 사용한 콘크리트는 목표 작업성 및 설계기준압축강도를 충분히 만족하며, 건조수축 측면에서도 수축 저감제를 혼입한 3성분계 콘크리트와 유사한 건조수축 특성을 나타내었다. 또한, 수화열 해석 결과 Premixed Cement를 사용한 콘크리트는 목표 온도균열지수를 충분히 확보할 뿐만 아니라, 수축 저감제를 혼입한 3성분계 콘크리트보다 경제성을 확보할 수 있는 방안으로 도출되었다. 향후 매스콘크리트구조물 시공에 있어 구조물의 내구성능 및 유지관리 편의성 향상을 위해 Premixed Cement를 사용한 콘크리트의 현장적용은 바람직한 것으로 판단된다. This study carried out to evaluate the hydration heat analysis and fundamental characteristics such as air content, slump, compressive strength and dry shrinkage according to concrete with premixed cement, ternary concrete and OPC concrete for using concrete with premixed cement. The results of experiment are founded that concrete with premixed cement have sufficient performances such as workability, compressive strength and dry shrinkage. Also, the results of hydration heat analysis are founded that concrete with premixed cement have more performance than ternary concrete and OPC concrete at a point of view for the quality control such as thermal crack reducing and economic benefit. Therefore, it is desirable that concrete with premixed cement should be used to rise durability performance and convenience of maintenance.

1920~30년대 서비스직 여성의 노동실태와 사회적 위상

윤지현 ( Yoon Ji-hyun ) 한국여성사학회 2009 여성과 역사 Vol.- No.10

한국근대여성사 연구의 다양한 주제 가운데 여성의 취업활동은 여성들의 사회활동을 연구하는데 있어 중요한 부분을 차지하고 있다. 일제시대 여성의 대다수는 농업에 종사하고 있었으나, 근대적 산업과 상업의 발흥에 따라 여성이 진출할 수 있는 취업분야가 차츰 확대되었다. 당시 서비스직은 여성의 다양한 취업 영역 중에서도 새로운 분야로 주목받으며 여성 취업의 대표적인 직종이 되었다. 본고에서는 1920~30년대 여성들의 서비스직 진출배경, 취업활동의 특징과 유형별 노동실태, 서비스직 여성들에 대한 사회적 인식을 살펴보았다. 여성들의 취업활동이 활발하게 이루어질 수 있었던 배경으로 교육받은 여성의 증가에 따른 여성의식의 성장을 꼽을 수 있다. 당시의 여성들에게 취업활동은 자아실현과 사회적 지위상승의 열망을 분출할 수 있는 기회로 여겨졌다. 또 하나의 배경으로 도시와 상업의 발달에 따른 여성노동력의 수요창출을 들 수 있다. 특히 서비스직종에서의 여성노동력 수요창출에는 친절을 특성으로 하는 물품판매와 대인서비스에 여성이 더 적합하다는 고용주들의 판단이 큰 역할을 하였고, 서비스직은 점점 여성에게 적합한 직업으로 고정되어 갔다. 1920~30년대 서비스직에 진출한 여성들의 취업활동에는 크게 두 가지 특징이 나타난다. 첫째, 서비스직 여성 취업인구는 도시지역에 집중되어 있었고 대부분 미혼여성이었다. 일제시대의 산업이 주로 도시를 중심으로 발달되었고, 여성의 취업도 도시지역을 중심으로 이루어졌기 때문이다. 둘째, 1920년대 말 세계대공황에 따른 실업이 증대되는 상황에서도 여성들을 주로 채용하는 서비스직은 항상 높은 경쟁률을 기록했다. 이러한 사실은 당시 취업활동에 참여하고자 하는 여성들의 욕구에 비해 취업의 기회가 매우 제한되어 있음을 말해준다. 서비스직에 종사하는 여성들은 대부분이 여학교를 졸업하고 일정한 시험을 통해 뽑힌 지식여성들이었다. 그러나 전문직 여성과 노동시간이나 보수, 노동의 성격에서 큰 차이를 보였다. 또한 대인서비스 업무에서 오는 고충과 성적(性的) 약자로서의 부당한 대우, 외모를 중시하는 채용기준은 사회적 지위 향상을 가로막는 하나의 장벽이 되었다. 특히 가사사용인의 경우 높은 취업률의 이면에는 땅을 잃은 농촌여성이 도시로 흘러 들어와 `조선어멈`이 되어야 했던 식민지 조선여성의 현실이 있었다. 그러나 여성들의 서비스부문 진출은 새로운 분야에서 활동하기 시작했다는 점에서 큰 의의를 가지며, 이는 곧 이 시기 여성의 공적 진출영역 범위가 더욱 확대ㆍ개척되었다는 것을 의미하는 것이다. Woman`s working is important part of the study of women histoy in modern age of Korea which research on woman`s social activity. In the Japanese Colonial Period, almost women were at the plow tail, but Accrding to rising a industry and commerce working field was increasingly gearing up so that woman could break into working field at that time, being attract attention a new service job became types of woman`s employment. This study is examined a background of penetration of Korean women service employees, characteristis of working, types of working conditions, social recognition of women. The background of women`s active employ activity was increasing of educated women and growing of their knowledge. At that time, women`s employ activity was regarded as an opportunity in achieving self-realization and improvement of social position. Another reason was increasing demand of women labor from developed industrial society. Especially in service industry, employers thought that women were more appropriate for their business based on kindness and interpersonal service. The 1920~1930`s employ activity of women, especially at the service industry, has two notable features. First, the women`s working population in service industry was closed at the downtown and most of the women were unmarried. In Japanese colonial period, most of the industry was located in the downtown; on account of this situation, most of women`s working area was developed at the downtown. Second, although the 1920`s the Great depression caused much unemployment, service industry which was almost comprised of women always recorded the high competitive rate. It means that there were not enough opportunities despite of great demand for work. Most of the women who were working in the service industry had graduated from girl`s school. They were the intellectuals who had entered a workplace through an examination. In comparison with professional women, however there was a sharp difference in working time, a salary and quality of labor. Also mental suffering from interpersonal service, sexual harassment and hiring standard -based on appearance- became obstacles to improving women`s social position. Particularly house maid, on the other side of high employment rate, there was stern reality of life of Korean women who had lost their land and come to the city and become `Joseon Ermum`. However, the entry of women in service industry was very meaningful fact because they open up a new field and it means the area of entry of women in public affairs was broadened and opened up.

‘양성평등’과 ‘일·가정 양립’ 관점에 근거한 초등 실과 검정 교과서 ‘나와 가정생활’ 단원의 분석

윤지현(Yoon Ji hyun) 학습자중심교과교육학회 2015 학습자중심교과교육연구 Vol.15 No.5

본 연구의 목적은 초등학교 실과 교과서의 ‘나와 가정생활’ 단원에 양성평등 및 일?가정양립의 가치가 어떻게 반영되어 있는지를 분석하여 향후 성평등적인 교육 과정 및 교과서 집필에 필요한 기초자료를 제공하는 것이다. 이를 위해 2011 실과 교육과정에 기초한 6개의 검정 교과서를 분석하였다. ‘나와 가정생활’ 단원에서 성장, 가족, 가정일, 가족원의 역할이라는 네 개의 개념을 중심으로 양성평등 및 일? 가정양립 가치의 반영 정도를 분석하였다. 연구 결과 실과 교과서의 ‘나와 가정생활’ 단원에서는 전반적으로 양성평등과 일?가정양립 가치가 제대로 반영되지 않아 보다 적극적으로 반영할 필요가 있었다. 또한, 지식의 성격 및 표현방식에 있어서 추상적이고 당위적인 표현이 많아 교과서에 이러한 가치들을 사실적으로 드러내주는 지식을 제시할 필요가 있다. 둘째, 남녀의 차이가 분명히 드러나는 ‘성장’의 개념에는 보다 적극적으로 양성평등적 가치를 반영할 필요가 있으며 ‘가족’의 모습 또한 특히 일?가정양립의 관점에서 그려질 필요가 있다. 셋째, ‘가정 일’과 ‘가족 구성원의 역할’과 관련해서는 보다 일?가정양립의 관점을 적극적으로 고려할 필요가 있으며, 지나치게 가사노동을 집중하여 다루므로 돌봄, 여가, 문화적 기능 또한 고려해야 할 측면으로 사료된다. The purpose of this study was to analyse the values of ‘gender equity’ and ‘work and family balance’ which were relected the elementary school textbooks in Practical Arts subject. By analysing especially the unit of ‘my life and family life’, the guideline for gender equitable textbook and curriculum development will be suggested. By qualitative analysis, the core concepts ‘development, family, family work, role of family member’ in 6 textbook were analysed in perspectives of ‘gender equity’ and ‘work and family balance’. The results of this study as follows. First, there’re reflected the values of ‘gender equity’ and ‘work and family balance’ in 6 textbooks insufficiently. Also, there’re needed more concrete knowledge than abstract or ‘should be’ expression on ‘gender equity’ and ‘work and family balance’. Second, the concept of ‘development’ and ‘family’ are needed to reflect the values of ‘gender equity’ actively. Third, the concept of ‘family work’ and ‘role of family members’ are needed to reflect the values of ‘work and family balance’ actively. And also, there’re needed to reflect the ‘care, leisure, and cultural aspects’ of family.

전자기력을 이용한 A1 scrap 으로 부터 과공정 A1 - Si 합금의 제조

윤지현(Ji Hyun Yoon),문광호(Kwang Ho Moon),김용현(Yong Hyun Kim),이광학(Kwang Hak Lee) 한국주조공학회 2001 한국주조공학회지 Vol.21 No.6

N/A The objective of this study is to investigate on manufacturing Al-scrap into hypereutectic Al-Si alloy by using electromagnetic force. The Fe element in the aluminium scrap was controlled by intermetallic compound method and using EMF(electromagnetic force). The most lumped compound was found after 10min holding at 690℃. A number of segregated compound was revealed when imposed to EMF at 30A. The refinement of primary Si particles was achieved by EMF stirring. Primary Si particles were refined and spheroidized most of all with the magnetic intensity of 180G for 10 min.