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A Study on the Description Elements of the Book Colophon in Korea (우리나라의 도서 판권기 기술서지 요소 고찰)

  • Lee, Myoung-Gyu
    • Journal of Korean Library and Information Science Society
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    • v.41 no.1
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    • pp.211-231
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    • 2010
  • Colophon means an element to describe bibliographic information of the concerned books on the specific space like a back of title page or the last page of a book, and is used as a useful information source when cataloging in a library. Imprint means an element to describe publication information to a title page or verso of a title page of a book. In addition, institutionally required elements to describe on a book are an author, a publisher, a date of publication, a publishing company, ISBN, and a price when printing publications. The bibliographic elements to describe on colophon are a title, an author, a place of publication, a publisher, the date of publication, a place of printing, a printer, the date of printing, edition, impression, the address and contact point of a publisher, a price, ISBN, a copyright, CIP, and the profile of an author, etc. The necessary bibliographic elements according to the development of publishing technology and changes of publishing environments are additionally described in this colophon.

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A Study of a Correction Effect of Astigmatism using Spherical RGP Lens (근시성 난시안에서 구면 RGP 콘택트렌즈의 난시교정 효과)

  • Ju, Seok-Hui;Park, Hae-Jung;Shin, Chul-Gun;Shim, Hyun-Seog
    • Journal of Korean Ophthalmic Optics Society
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    • v.8 no.2
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    • pp.85-89
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    • 2003
  • A tear lens formed by between back surface of spherical rigid gas permeable(RGP) contact lens and front surface of cornea shows an excellent correction effect of astigmatism. To study an effects of tear lens power using spherical RGP lens and therefore to utilize them in clinical procedures, we analyze a change of the total astigmatism, the cornea astigmatism, and the residual astigmatism, we derive the following conclusion. 1. Almost all refractive astigmatism below than 2.00D present fully corrected. Thereby resulting good visual acuity. Refractive astigmatism higher than 2.50D show under-corrected and apparent decrease of visual acuity if it is higher than 3.00D. 2. Amount of corneal astigmatism below than 2.50D show acceptable under-corrected while higher than 3.000 present unacceptable visual acuity. 3. An estimated residual astigmatism is not revealed as it is : but it is reduced when it incorporate to refractive astigmatism.

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A Comparative Study of Two Different SnO2:F-coated Glass Substrates for CdTe Solar Cells

  • Cha, Eun Seok;Ko, Young Min;Choi, Yong Woo;Park, Gyu Chan;Ahn, Byung Tae
    • Current Photovoltaic Research
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    • v.5 no.1
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    • pp.1-8
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    • 2017
  • Two different fluorine-doped tin oxide (FTO)-coated glass substrates were investigated to find better suitability for CdTe solar cells. Substrate A consisted of FTO (300 nm)/$SiO_2$ (24 nm)/intrinsic $SnO_2$ (30 nm)/borosilicate glass (2.2 mm), and substrate B consisted of FTO (700 nm)/intrinsic $SnO_2$ (30nm)/borosilicate glass (1.8 mm). The overall thickness of the FTO/glass substrates was about 2.5 mm. The total light transmittance of substrate B was much higher than that of substrate A throughout the whole spectral region, even though the thickness of the FTO in substrate B was twice larger than that of the FTO in the substrate A. The short-circuit current greatly increased in substrate B and the external quantum efficiency (EQE) increased over the whole wavelength range. This study shows that the diffuse optical transmittance played a key role in the large EQE value in the blue wavelength region, and the direct transmittance played a key role in the large EQE value in the red wavelength region. The higher transmittance is due to the rough surface generated by the thicker FTO on glass. The conversion efficiency of the CdTe solar cell increased from 12.4 to 15.1% in combination of rough FTO substrate and Cu solution back contact.

V(IV) Species, Location and Adsorbate Interactions in VH-SAPO-42 Studied by ESR and Electron Spin-Echo Modulation Spectroscopies

  • Back, Gern-Ho;Yu, Jong-Sung;Lee, Hye-Young;Kim, Min-Sik;Lee, Yong-Ill
    • Journal of the Korean Magnetic Resonance Society
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    • v.11 no.2
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    • pp.95-109
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    • 2007
  • Vanadium-incorporated aluminophosphate microporous molecular sieve VH-SAPO-42 has been studied by electron spin resonance(ESR) and electron spin-echo modulation (ESEM) spectroscopies to determine the vanadium location and interaction with various adsorbate molecules. The results are interpreted in terms of V(IV) ion location and coordination geometry. Assynthesized VH-SAPO-42 contains only vanadyl species with distorted octahedral or trigonal bipyramidal coordination. Vanadium incorporated into H-SAPO-42 occupied extra-framework site. After calcinations in $O_2$ and exposure to moisture, only species A is observed with reduced intensities. Species A is identified as a $VO(H_2O)_2^{2+}$ complex coordinated to three framework oxygen atoms bonded to aluminum. When hydrated VH-SAPO-42 is dehydrated at elevated temperature by calcination, species A loses its water ligand and transforms to $VO^{2+}$ ions coordinated to three framework oxygens (species B). Species B reduces its intensities significantly after treatment with $O_2$ at high temperature, thus suggesting oxidation of $V^{4+}$ to $V^{5+}$. When dehydrated VH-SAPO-42 makes contact with $D_2O$ at room temperature, the ESR signal of species A is regained. The species is assumed as a $VO(O_f)_3(D_2O)_2$ by considering three framework oxygens. Adsorption of deuterated methanol on dehydrated VH-SAPO-42 results in another new vanadium species D, which is identified as a $VO(CD_3OH)_2$ complex. When deuterated ethylene is adsorbed on dehydrated VH-SAPO-42, another new vanadium species E identified as a $VO(C_2D_4)^{2+}$, is observed. Possible coordination geometries of these various complexes are discussed.

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Characteristics of Mo Thin Films Deposited by DC Magnetron Sputtering (DC 마그네트론 스퍼터링 방법에 의해 증착된 Mo 박막의 특성)

  • Kong, Seon-Mi;Xiao, Yubin;Kim, Eun-Ho;Chung, Chee-Won
    • Korean Chemical Engineering Research
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    • v.49 no.2
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    • pp.195-199
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    • 2011
  • Mo thin films were deposited on soda lime glass at room temperature by using DC magnetron sputtering The electrical and structural properties of the films were investigated by varying DC power and gas pressure as the deposition parameter. As DC power increased, the deposition rate of Mo films was increased and the electrical resistivity was decreased. It was observable that the crystallinity of the films was improved with increasing DC power. As gas pressure decreased, the deposition rate and resistivity of the films were decreased, and long rectangular grains were densely formed. With increasing gas pressure, the grains were transformed to a round shape and the voids on the film surface were increased. It was confirmed that the electrical resistivity of Mo films was increased as the amount of oxygen combined with Mo atoms increased. It was also disclosed that the films have low resistivity as the degree of coupling of oxygen with Mo was reduced due to the enhancement of the crystallinity of the films.

Electrochemical Etching of Silicon in Porous Silicon Layer Transfer Process for Thin Film Solar Cell Fabrication (초박형 태양전지의 Porous Si Layer Transfer 기술 적용을 위한 전기화학적 실리콘 에칭)

  • Lee, Ju-Young;Han, Wone-Keun;Lee, Jae-Ho
    • Journal of the Microelectronics and Packaging Society
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    • v.16 no.4
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    • pp.55-60
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    • 2009
  • Porous silicon film is fabricated by electrochemical etching in a chemical mixture of HF and ethanol. Effects of Si type, Si resistivity, ultrasonic frequency, current density and etching time on surface morphology of PS film were studied. Electrochemical etching in ultrasonic bath promotes the uniformity of porous layer of Si. Frequency of ultrasonic was increased from 40 kHz to 130 kHz to obtain uniform pores on the Si surface. When current density was higher, the sizes of pores were larger. The new etching cell using back contact metal and current shield help to overcome nonhomogeneity and current crowding effect, and then leads to fabricate uniform pores on the Si surface. The distribution of pore size shows no notable tendency with etching time.

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Bow Reduction in Thin Crystalline Silicon Solar Cell with Control of Rear Aluminum Layer Thickness (박형 결정질 실리콘 태양전지에서의 휨현상 감소를 위한 알루미늄층 두께 조절)

  • Baek, Tae-Hyeon;Hong, Ji-Hwa;Lim, Kee-Joe;Kang, Gi-Hwan;Yu, Gwon-Jong;Song, Hee-Eun
    • 한국태양에너지학회:학술대회논문집
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    • 2012.03a
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    • pp.108-112
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    • 2012
  • Crystalline silicon solar cell remains the major player in the photovoltaic marketplace with 90 % of the market, despite the development of a variety of thin film technologies. Silicon's excellent efficiency, stability, material abundance and low toxicity have helped to maintain its position of dominance. However, the cost of silicon photovoltaic remains a major barrier to reducing the cost of silicon photovoltaics. Using the crystalline silicon wafer with thinner thickness is the promising way for cost and material reduction in the solar cell production. However, the thinner thickness of silicon wafer is, the worse bow phenomenon is induced. The bow phenomenon is observed when two or more layers of materials of different temperature expansion coefficiencies are in contact, in this case silicon and aluminum. In this paper, the solar cells were fabricated with different thicknesses of Al layer in order to reduce the bow phenomenon. With lower paste applications, we observed that the bow could be reduced by up to 40% of the largest value with 130 micron thickness of the wafer even though the conversion efficiency decrease of 0.5 % occurred. Since the bowed wafers lead to unacceptable yield losses during the module construction, the reduction of bow is indispensable on thin crystalline silicon solar cell. In this work, we have studied on the counterbalance between the bow and conversion efficiency and also suggest the formation of enough back surface field (BSF) with thinner Al paste application.

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The outbreaks and counterplan of highly pathogenic avian influenza in Korea and overseas (국내.외 조류인플루엔자(HPAI) 발생현황과 대응방안)

  • Jang, Hyung-Kwan
    • 한국환경농학회:학술대회논문집
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    • 2009.07a
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    • pp.220-227
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    • 2009
  • For last about 10 years, the Republic of Korea experienced 3 times of outbreaks of highly pathogenic avian influenza (HPAI) from 10 December 2003 to 30 April 2004 (a total number of 19 outbreaks), 22 November 2006 to 6 March 2007 (a total number of 7 outbreaks), and 1 April 2008 to 12 May 2008 (a total number of 33 outbreaks). Among the totally 59 outbreaks, the infected premises included 35 chicken farms, 17 duck farms, 1 quail farm, and 6 farms rearing mixed species. Control measures were applied according to the HPAI standard operation procedure including depopulation of all infected and suspected flocks, movement restrictions, and disinfection of the infected farms within a 500-meter radius. Including movement restrictions, stringent control measures were additionally applied to two designated zones: the protection zone was an area within a 3-kilometer radius of the outbreak farm, and the surveillance zone was an area between a 3- to 10-kilometer radius of the outbreak farm. Farms with dangerous contacts and/or all of poultry within the protection zone was subjected to preemptive culling. Epidemiological investigations were also carried out including trace-back and trace-forward investigations to identify possible sources of spread and dangerous contact farms. Investigation teams conducted on-site examination of farm premises and facilities, interview with farm owner and staff, and review of records. Genetic and pathogenic characteristics of the virus isolates, and the results of the various surveillance activities were also analyzed. HPAI surveillance conducted in Korea includes passive surveillance of investigating notified cases, and active surveillance of testing high risk groups and areas. HPAI is a notifiable disease in Korea and all suspect cases must be reported to the veterinary authorities. Cases reported for other poultry diseases that require differential diagnosis are also tested for HPAI. Active surveillance includes annual testing of breeder duck farms, broiler duck farms and wild bird surveillance, which is concentrated during the autumn and winter. Surveillance activities conducted prior to the outbreaks have shown no evidence of HPAI infection in Korea.

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The Burden in Women with Hysterectomy (자궁절제 여성의 부담감에 관한 연구)

  • Seong, Mi-Hye
    • Women's Health Nursing
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    • v.3 no.2
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    • pp.180-191
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    • 1997
  • When women are removed with their matrix which is a emotionally significant organ of symbol in psychologically adapting themselves to mother and woman, that is threatened and injured with woman role decisively. The nursing for women with hysterectomy is limited to medical treatment and the nursing related to troubles in psychology, emotion they experience in general situation due to operations is hardly realized. New basis for nursing can be realized when we both have relation with lived human experience related th health and become to be a part of it. We need to catch their experience due to the loss of matrix to understand women with hysterectomy. The subjects of the study were nine patients who were admitted to a gynecological ward of a hospital in Seoul, suffering from vaginal bleeding, back pain, abdominal pain and so on and diagnosing as non-cancer. The data were collected from April to May 1997 by listening to the subjects' expression of their experience and by participant observation of the subjects' reactions. A tape-recorder was used under the permission of the subjects, to prevent the loss of spoken information. The result of the study was as follows : The data on burden content from the interview were categorized as psych-emotional, physical, personal interaction, financial burden and maternal role burden. The factors which have influence on the burden of the subjects are an offer of information, support system, age, occupation, economic situation, family history, character, season, the existence of ovary and religion. In conclusion, since we ascertained that the nursing in the process of recovery decide the quality of life, though women with hysterectomy undergo various burden experience and adapt to it in the end, it is necessary to give them enough information and educate husband, having on important effect on the burden experience, to be a good supporter. And technically skilled nurses of consultant are thought to be able to contrive better qualitative life of women with hysterectomy as an important bridge between the subjects and their required information, since the nurses have their well-formed position of relationship of confidence through continuous contact with patients and their family.

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Nursing Interventions Classification(NIC) Use in Korea : Oriental Medicine Hospitals and General Hospitals (간호중재분류(NIC)에 근거한 간호중재수행분석 II -한방병동과 일반병동 간호사를 중심으로-)

  • 염영희;김성실;김인숙;박원숙;김은주
    • Journal of Korean Academy of Nursing
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    • v.29 no.4
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    • pp.802-816
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    • 1999
  • The purposes of this research were to identify nursing interventions performed by Korean nurses and to compare the interventions performed by nurses working in the oriental medicine hospitals and with those performed by nurses working in the general hospitals. The samples consisted of 144 Korean nurses working in three hospitals, 70 nurses working in the oriental medicine hospitals and 74 nurses working in the general hospitals. The Nursing Interventions Classification (NIC) Use Questionnaire developed by the Iowa Intervention Project team was translated to Korean and verified using the method of back-translation. The questionnaire consists of 433 intervention labels and definition. Thirteen interventions were used at least daily by nurses working in the oriental medicine hospitals, while twenty-one interventions were used at least daily by nurses working in the general hospitals. The most frequently used interventions by nurses working in the oriental medicine hospitals were Documentation, Shift Report Vital Signs Monitoring, Pressure Ulcer Prevention, Positioning, Fall Prevention, Exercise Promotion, Intravenous (IV) Therapy, Pressure Ulcer care, and Bed Rest Care in that crder. For nurses working in the general hospitals the most frequent intervention was Analgesic Administration, followed by the interventions of Medication Administration : Parenteral and Intravenous Therapy (IV) Therapy, Documentation, Intravenous(IV) Insertion, Shift Report, Fall Prevention, Vital Signs Monitoring, Medication Adnninistraction : and, Fluid Monitoring, and Medication Maragement in that order. The interventions performed least often by nurses working in the oriental medicine hospitals were Hemodialysis Therapy and Bleeding Reduction : Antepartum Uterus, while the interventions performed least often by nurses working in the general hospitals were Rape Trauma Treatment and Contact Lens Care. The nurses working in the oriental medicine hospitals performed the interventions in the Physiological : Complex domain significantly more often than the nurses working in the general hospitals, while the nurses working in the general hospitals performed the intervention in the Behavior domain significantly more often than the nurses working in the oriental medicine hospitals. This study suggests that further study will be needed to developed and validate more interventions sensitive to Korean culture.

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