• Journal of the Korean Physical Society
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• v.73 no.11
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• pp.1760-1763
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• 2018

To attain power generation with body heat, the thermal resistance matched design of the thermoelectric generator was the principal factor which was not critical in the case of thermoelectric generator for the waste heat generation. The dimension of thermoelectric legs and the number of thermoelectric leg-pairs dependent output power performances of the thermoelectric generator on the human wrist condition was simulated using 1-dimensional approximated heat flow equations with the temperature dependent material coefficients of the constituent materials and the dimension of the substrate. With the optimum thermoelectric generator design, thermoelectric generator modules were fabricated by using newly developed fabrication processes, which is mass production possible. The electrical properties and the output power characteristics of the fabricated thermoelectric modules were characterized by using a home-made test set-up. The output voltage of the designed thermoelectric generator were a few tens of millivolts and its output power was several hundreds of microwatts under the conditions at the human wrist. The measured output voltage and power of the fabricated thermoelectric generator were slightly lower than those of the designed thermoelectric generator due to several reasons.

• Journal of Korean Academy of Nursing
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• v.53 no.6
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• pp.584-596
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• 2023

Purpose: This study aimed to explore the perspectives of frontline nurses working during the novel coronavirus disease 2019 (COVID-19) pandemic. Methods: An online qualitative study was conducted using a pragmatic approach. The data were collected in August 2021. Registered Korean nurses who provided direct nursing care to patients with confirmed COVID-19 were eligible for this study. An online survey was used to gather free-text data, which were then analyzed using machine-based network analysis and summative content analysis. Results: The analysis examined the responses of 126 participants and led to the identification of six prominent themes. These themes were further classified into three distinct levels: personal, task, and organizational. The identified themes are as follows: "collapse of personal life," "being overwhelmed by the numerous roles required," "personal protective equipment was sufficiently provided, but that is not enough," "changes in interprofessional collaboration," "inappropriate workforce management," and "diverted allocation of healthcare services and resources." Conclusion: Our findings highlight areas for improvement in resources, systems, and policies to enhance preparedness for future pandemics.

• Korean Journal of Human Ecology
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• v.19 no.4
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• pp.687-698
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• 2010

This study found that physical image affects behaviour of clothes, ready-to-wear satisfaction or dissatisfaction, weight control targeting the female university students. Results showed that people, who manage their appearance well, seeks esthetics and showing off, on the contrary, the person, who has not confidence of her body, pursues virtue. It was also found that people who have confidence in their body shape, and people who manage their appearance well are typically satisfied with ready-to-wear clothes, while people who are not satisfied with their appearance, do not like ready-to-wear clothes. People who are concerned with appearance and who manages their appearance well, are typically worried about obesity, and they manages their weight control carefully. However, people who have confidence in their bodies and who do not manage their weight do not pay attention to weight control. Consequently, fit was also found that people with more confidence tend to do more exercise and more frequently visit saunas. The less they don't satisfied with their body, the more fast, dietary treatment, or weight control with the other ways.

• Journal of Physiology & Pathology in Korean Medicine
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• v.27 no.6
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• pp.730-737
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• 2013

The purpose of this study is to investigate vasorelaxant effect of Epimedium koreanum(EK) extract on rabbit carotid artery. In this study, to determine vasorelaxant effect of EK extract on rabbit carotid artery, arterial rings with intact or damaged endothelium were used for experiment using organ bath, and were contracted by norepinephrine(NE). After being contracted, arterial rings were treated with EK extract in a dose-dependent manner To study its mechanism, the contracted arterial rings induced by NE were pretreated with indomethacin(IM), $N_{\omega}$-nitro-L-arginine(L-NNA), methylene blue(MB) or tetraethylammonium chloride(TEA) and 0.1 $mg/m{\ell}$ EK extract was added. To analyze the effect of the EK extract on influx of extracellular calcium chloride($Ca^{2+}$) in rabbit carotid artery, in $Ca^{2+}$-free krebs solution, krebs solution containing 1 mM $Ca^{2+}$ was infused into the contracted arterial ring by NE after pretreatment of EK extract. To measure the cytotoxicity of the EK extract, cell viability of human umbilical vein endothelial cell(HUVEC) was measured by MTT assay, and nitric oxide(NO) was measured by Griess reagent. The EK extract significantly was relaxed the arterial ring with intact endothelium contracted by NE, but the vasorelaxant effect of the EK extract was inhibited in the arterial rings with damaged endothelium. The vasorelaxant effect of the EK extract was not different between the IM-pretreatedand and non-treated arterial rings. The vasorelaxant effect of EK extract were significantly inhibited, when arterial rings were pretreated with L-NNA, TEA, MB. And in $Ca^{2+}$-free krebs solution, increasing of arterial contraction by $Ca^{2+}$ addition were also inhibited by the treatment of EK, but not significant. The treatment of EK extract was increased NO concentration in HUVEC. This study suggested that the vasorelaxant effect of EK extract would be related with EDHF and NO production and increasing of cyclic GMP.

• Journal of Advanced Navigation Technology
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• v.15 no.1
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• pp.32-38
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• 2011

In this paper, code and carrier tracking error which resulted from spoofing signal was analyzed by simulation. For a start, the types of spoofing signals and methods were classified. For the simulation, search spoofing method is assumed because a perfect position and velocity are not generally informed to spoofing device. In most cases, the tracking error is increased but a complete deception does not happen because of the inherent anti-spoofing characteristics of the GPS signal.

• Journal of Korean Medical classics
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• v.7
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• pp.113-160
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• 1994

The Sa-Ahm monk, who was believed to have existed in the middle of Cho-Seon Dynasty in Korea, have created an original Sa-Ahm's acupuncture method and written down, "Book of Sa-Ahm's 5 Element Acupuncture Method" using not only laws of creation and suppression in 5 element theory but also its main and other connected meridians according to the daignosis of visceras and bowels. Also the written time and background of its theory have not been known, and after obtaining Ji-San's book on Sa-Ahm's acupuncture method, I studied on them. The results are as follows : 1) The treatment chapter of Book of Sa-Ahm's 5 Element Acupuncture Method was written down by Sa-Ahm himself, and the chapter for Medical Experience was found to be written down by Ji-San. 2) It seemed that Sa-Ahm adopted the main ideas of "Eui Hak Jeong Jon(醫學正傳)" for the section of physiology, pathology and classification of disease symptoms the contents of which covered 40 of 43 parts, and the ideas of "Dong Eui Bo Gam(東醫寶鑑)" for YunGi treatise(運氣篇), and SangHan part(傷寒門) in classification of diease symptoms was intensified by the ideas of "Eui Hak Ip Moon(醫學入門)", and the contents of apoplexy, diseases characterized by acute diarrhea and vomiting, beriberi, diseases of oral cavity were intensified by the ideas of "Chim Ku Kyeong Hearn Bang(鍼灸經驗方)". 3) The written date of the Book of Sa-Ahm's 5 Element Acupuncture Method has been established as 1644 AD(22nd year of In Jo king of Cho-Seon Dynasty) after studying preface, contents and acknowledgement of Heo Im's "Chim Ku Kyeong Hearn Bang(鍼灸經驗方)". 4) The philosophic background of "Sa-Am Acupuncture Method(舍巖鍼法)" seems to be derived from the theories of "I Ching(周易)" and Yin Yang 5 Element Theory(陰陽五行學說), and to be influenced by such medical scholars as Tan Ke(丹溪), Woo Bak(虞搏), and Heo Im(許任).

• Korean Journal of Human Ecology
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• v.5 no.1
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• pp.14-27
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• 2002

The purpose of this study is to identify the ritual dress used by the 12 religious bodies of Dankun followers to help understand the teachings of these currently operating religious groups in Korea. The findings from the survey and related literatures are used to analyze the characteristics of these ritual dresses in terms of their items, construction, form, and color. The results of the study are as follows: first, most of the religious groups of Dankun followers have established the code for ritual dresses and they are named as 'chaebok'(제복, sacrificial robes), 'yebok'(예복, ceremonial dress), 'chungbok'(정복, formal attire), 'pubbok'(법복, Buddhist formal dress), or 'tobok'(도복, Taoist garments). The official headgear is usually named as 'chaemo'(제모), 'soogun'(수건), 'moja'(모자), or 'yoogun'(유건, 儒巾). Though, there are some groups which do not use any specific names for headgear. Second, the ritual dresses of most groups are composed of the 'hanbok'(한복,韓服) or usual Western-style dress, a traditional outer wear, 'po'(포,袍), and a headgear, as a basic attire. Third, the traditional 'hanbok' is worn as a base garment and an outer wear is worn above. The different types of outer wear are used: mostly 'chaksu jueui jikyoun po'(착수주의직령포, 窄袖周衣直領袍) for men and 'kwangsu jikyoung po'(광수직령포, 廣袖直領袍) and other various styles for women. The headgear from the ancient times are worn by both men and women. Fourth, the most frequently-used color for ritual dress is white for both men and women's dress. The colors from the Yin and Yang ideology are also used in the ritual dresses. Finally, the kinds of materials are not considered as an important element for the ritual dresses.

• Journal of Veterinary Clinics
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• v.26 no.6
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• pp.534-538
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• 2009

Antiemetic effect of dexamethasone in dogs sedated with medetomidine was evaluated. On the day of experiment, five minutes prior to medetomidine ($40\;{\mu}g$/kg, IM) injection, dexamethasone was administered intravenously at the doses of 0.25, 0.5 and 1.0 mg/kg. Control group was received at 0.1 ml/kg of saline instead of dexamethasone. The dose of 0.5 and 1.0 mg/kg of dexamethasone significantly reduced emetic episode. The degree of sedation determined by visual sedation scoring was not influenced by dexamethasone pretreatments. In addition, the values of complete blood counts and blood chemistry did not show significant changes and were within normal ranges before and the day after experiment. These results show that the doses of 0.5 and 1.0 mg/kg of dexamethasone are useful and safe method to prevent emetic episode inducing by medetomidine in dogs, without evidence of any clinically relevant influences.

• Women's Health Nursing
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• v.26 no.4
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• pp.285-299
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• 2020

Purpose: This systematic review aims to identify factors associated with risk-reducing salpingo-oophorectomy (RRSO), including the uptake rate and decision timing, among women at high risk for hereditary breast and ovarian cancer (HBOC). Methods: We found 4,935 relevant studies using MEDLINE, Embase, CINAHL, and PsycINFO on July 6, 2020. Two authors screened the articles and extracted data. Twenty-four studies met the inclusion criteria. Quality assessment of articles was conducted using the Risk of Bias for Nonrandomized Studies tool. Results: Five types of factors were identified (demographic factors, clinical factors, family history of cancer, psychological factors, and objective cancer risk). The specific significant factors were older age, having child(ren), being a BRCA1/2 carrier, mastectomy history, perceived risk for ovarian cancer, and perceived advantages of RRSO, whereas objective cancer risk was not significant. The uptake rate of RRSO was 23.4% to 87.2% (mean, 45.2%) among high-risk women for HBOC. The mean time to decide whether to undergo RRSO after BRCA testing was 4 to 34 months. Conclusion: RRSO decisions are affected by demographic, clinical, and psychological factors, rather than objective cancer risk. Nonetheless, women seeking RRSO should be offered information about objective cancer risk. Even though decision-making for RRSO is a complex and multifaceted process, the psychosocial factors that may influence decisions have not been comprehensively examined, including family attitudes toward RRSO, cultural norms, social values, and health care providers' attitudes.

• The Journal of Advanced Prosthodontics
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• v.14 no.3
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• pp.143-149
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• 2022

PURPOSE. Masticatory loading triggers active bone remodeling, altering alveolar bone mineral density (BMD). While dental implants are placed to bear masticatory loading, their influence on changing bone properties has not been fully investigated. Objective of this pilot study was to examine whether the dental implantation has an effect on BMD distribution of bone by comparing dentate, edentulous, and edentulous patients with implants. MATERIALS AND METHODS. Cone beam computed tomography (CBCT) images of 19 partially edentulous patients (Dent), 19 edentulous patients (Edent), and 16 edentulous patients who received implants in the mandible (Edent+Im), were obtained. CBCT images were also obtained from 5 patients within Edent+Im group, before implant placement and after implant loading. Basal cortical bone region of the mandible was digitally isolated. A histogram of gray levels proportional to BMD was obtained to assess mean, histogram standard deviation (HSD), fifth percentile of low and high values (Low₅ and High₅) of the BMD distribution. Multivariate analysis of variance and paired t-test were used to compare the BMD parameters among the 3 dental status groups and between pre- and post-implantation, respectively. RESULTS. Edentulous patients with implants had significantly greater HSD and High₅ values compared to edentulous patients (P < .013). All other comparisons were not significant (P > .097). Mean, HSD, and High₅ values significantly increased after receiving implants (P < .022). CONCLUSION. The current findings suggested that receiving dental implants promoted oral bone mineralization for edentulous patients. The longitudinal investigation could provide valuable information on understanding the effects of implantation on the behavior of oral bone quality.