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MEMS 칩과 휴대형 전기화학적 신호 처리 시스템을 이용한 수중 비소이온 검출
조명옥(Myoung-Ock Cho),전유진(Yujin Jeon),임시형(Si-Hyung Lim) 대한기계학회 2019 대한기계학회 춘추학술대회 Vol.2019 No.11
In this study, we have developed an arsenic ion detection system capable of measuring low concentrations of arsenic ions by electrochemical methods. A sensor chip having three electrodes of a working electrode, a counter electrode, and a reference electrode was designed and fabricated using microfabrication techniques. Also, we developed a portable signal processing board capable for anodic stripping voltammetry. Various types of electrolytes were used to detect arsenic with concentrations of < 10 ppb, the World Health Organization’s guideline for arsenic standard. The preliminary test results were analyzed, and compared with the results using commercially available sensors. A total analysis time using the developed arsenic measurement system was < 1 minute, including the time to concentrate samples. Our work can be applied to the measurement or monitoring of arsenic ion contamination level in many health hazard water sources.
조명옥(Cho, Myung Ok),김미경(Kim, Mi Kyeong) 질적연구학회 2017 질적연구 Vol.18 No.1
Purpose: This study was aimed to find the common constituents and structure of the experience of anger. The focus of the study was the anger experience of the women who suffered from cervical cancer. Methods: Giorgi’s descriptive phenomenology was adopted for the study. 6 participants were recruited using the convenient sampling method: aged from 47 to 82 years old; 4 participants having had the treatments of surgery and chemotherapy, and 2 having had the treatment of surgery, chemotherapy and radiotherapy. Data came from in-depth interviews conducted in an oncology ward, an outpatients department, participants’ home, and researcher’s office. 4 steps of Giorgi’s method for data analyzing were adopted. Results: The common constituents of participants’ experiences of anger consisted of: reflection and evaluating on the meaning of unfair threatening life event and making a pre-assumption, re-examining the event with the perspectives of an object and social rule of behavior, verification and conforming of pre-assumption, transfer the objects of anger to other individuals and situations. Conclusion: Participants’ experience of anger is a cognitive process of reflection on self, one’s life, and their social contexts. Unfair life codes for the women in our society make women angry. Identifying and understanding the common constituents of anger experiences and it’s structure will enable nurses to be more sensitive and effective caregivers.
조명옥(Cho Myung-Ok),김혜옥(Kim Hae-Ok) 질적연구학회 2006 질적연구 Vol.7 No.2
Death is an universal experience of all human, but it’s meanings are specific to the cultures and individual. The purpose of this qualitative research was to explore the meanings of death among the nursing students. The data were 92 essays entitled ‘reflex on death of myself’ These texts were analysed using qualitative content analysis. Selected analysing constituents were time, space, and relationship. Three meanings on the death were found: diaspora of being, separation from everyday life and normality, and changing an attitude to a life and death. These meanings were constructed by a journey on their lives from past to future. Reflection on death of oneself and results of the research has it’s meaning on the nursing education and practice for the dying patients.
조명옥(Cho Myung-Ok) 질적연구학회 2009 질적연구 Vol.10 No.2
Purpose: This article was aimed to develop a new approach in nursing research. Methods: An exploratory literature review was performed for the purpose of ethno-nursing. Results: This article composed as: historical reviews on ethnography in nursing as its purpose and research trends; descriptive reviews on basic assumptions and perspectives on culture in communicative ethnography; critical inquiry on cultural isolate of temporality and territoriality by its usage in nursing research. Conclusion: Communicative ethnography by Edward Hall is an useful approaches to make thick description on nursing concepts of time and pace. It can be successfully adopted to ethno-nursing research.