• Title/Summary/Keyword: Coordination Number

Search Result 364, Processing Time 0.036 seconds

Effect of oxygen deficiency on electronic properties and local structure of amorphous tantalum oxide thin films

  • Denny, Yus Rama;Firmansyah, Teguh;Park, Chanae;Kang, Hee Jae;Yang, Dong-Seok;Heo, Sung;Chung, Jae Gwan;Lee, Jae Cheol
    • Proceedings of the Korean Vacuum Society Conference
    • /
    • 2015.08a
    • /
    • pp.122.1-122.1
    • /
    • 2015
  • The dependence of electronic properties and local structure of tantalum oxide thin film on oxygen deficiency have been investigated by means of X-ray photoelectron spectroscopy (XPS), Reflection Electron Energy Loss Spectroscopy (REELS), and X-ray absorption spectroscopy (XAS). The XPS results showed that the oxygen flow rate change results in the appearance of features in the Ta 4f at the binding energies of 23.2 eV, 24.4 eV, 25.8, and 27.3 eV whose peaks are attributed to Ta1+, Ta2+, Ta3+, Ta4+, and Ta5+, respectively. The presence of nonstoichiometric state from tantalum oxide (TaOx) thin films could be generated by the oxygen vacancies. The REELS spectra suggested the decrease of band gap for tantalum oxide thin films with increasing oxygen deficiency. In addition, XAS spectra manifested both the increase of coordination number of the first Ta-O shell and a considerable reduction of the Ta-O bond distance with the decrease of oxygen deficiency.

  • PDF

Development of Human Indices to Determine Both Returning Point of Residents and Damage Restoration after the Chemical Accident (화학사고 후 주민복귀 및 피해복구 시점 결정을 위한 인체지표 개발)

  • Yang, JunYong;Heo, JeongMoo;Lee, HyunSeok;Lee, JunSang;Cho, YongSung;Kim, HoHyun;Park, SangHee
    • Journal of Environmental Health Sciences
    • /
    • v.46 no.5
    • /
    • pp.588-598
    • /
    • 2020
  • Objectives: Human indices were developed to determine returning point of residents and damage restoration after the chemical accident Methods: To determine the returning point of residents after the chemical accident, a new concept, the standard man model was introduced as a human index, in which both H-code and its acute effects were main idea. To evaluate the applicability, a hydrogen fluoride leakage accident in Gumi was applied. The returning point were suggested as the conservative remission period of acute effects among relevant hazard effects and compared with actual returning point. The coverage of each age group were considered with reflecting average daily dose expected for actual residents. In addition, a relief-index as a social-scientific approach was reflected as well to apply the damage restoration Results: Actual returning point of residents in Gumi was 88 days; and that of standard man model suggested was 84 days. The expected amount of exposure at aged 12 or under was at least 2.35 times greater than that of this model, 40s, theoretically. However, their population ratio was less than 1%, so 99% of residents could be applied when the standard man model was applied. The relief-index was as an objective and quantitative methodology to apply the qualitative aspect. Conclusions: Although evaluated as a relatively positive result, there was a limitation such as the number of accident applied to the verification of standard man model. The relief index was also considered, but further research should be carried out to find threshold level for the relief.

A Study for Developing the Competitive Swimming Suit Design with Korean Traditional Image (I) - Focused on the 5 traditional colors and Taeguk motive - (한국적 이미지의 경기용 수영복 디자인 개발에 관한 연구(I) - 오방색과 태극문을 중심으로 -)

  • 최경희;김민자
    • Journal of the Korean Society of Costume
    • /
    • v.53 no.2
    • /
    • pp.35-55
    • /
    • 2003
  • The purpose of the study is to get some pieces of prior information to eventually develop competitive swimming suit designs with Korean traditional images. The study has been accomplished in following steps. First, as theoretical research, the history of swimming suit design and the requirements in designing competitive swimming suits were studied. Second, as practical research, at first, the trend of the competitive swimming suit designs in the national swimming suit market was examined. And then. the questionnaire surveys of both professional and amateur swimmers about their design preferences with purchasing and fabric-related tendencies were conducted for understanding professionals' characters more exactly. This data were analyzed through cross-analysis and multi-response analysis and x 2 was used. The results of this study can be summarized as follows : First, athletes' preferential design tendency for the swimming suit designs were examined in the aspects of style, color, pattern, logo, and accessary. In style, female athletes preferred an athletic one-piece style and male ones preferred a brief style. In color. neutral, mostly black was preferred most and cold color group like dark blue and navy blue next, regardless of sex. In addition, they preferred similar color coordination. In pattern, though solid fabrics were mostly preferred in both sexes, especially Taeguk motive were considered the most appropriate pattern to show Korean image. Besides, logo was considered importantly, and swimming caps and goggles of accessaries were generally used. Second, athletes' swimming suit purchasing tendency was as a following. the number of swimming suits possessed was more than 4 pieces. the durable period was less than 3 months. and the most important point considered in purchasing was an easy fitting for men and a design with an easy fitting for women. And most of swimming athletes preferred foreign products than domestic ones, which was attributed to excellent quality, easy fitting, and good design. and so on. Third, in fabric-related tendency, food touch, easy fitting. and opaqueness were considered importantly. and durability to chlorine, elasticity, color fastness, easy draining, lightness, and so on were demanded forward.

Studies on the outbreak cause of inner tissue browning and malformed symptoms on fruiting body of Agaricus brazilensis (신령버섯(Agaricus brazilensis) 기형증상의 발생원인 및 조직내 갈변에 관한 연구)

  • Jhune, Chang-Sung;Yun, Hyung-Sik;Park, Yun-Jung;Weon, Hang-Yeon;Yoo, Young-Bok;Lee, Chan-Jung;Chung, Jong-Chun;Kong, Won-Sik
    • Journal of Mushroom
    • /
    • v.7 no.4
    • /
    • pp.168-172
    • /
    • 2009
  • We attempted to isolate the bacterial strains from the fruiting bodies of Agaricus brazilensis and determined their effects on browning and distortions of mushrooms. No bacterial strains were isolated when the middle of browning regions of A. brazilensis were used. Total 125 bacterial strains were obtained from the surface of browning regions and classified into 17 different genera and 29 species by using MIDI methods. Most common genus were Pseudomonas (26), Yersinia (29), and Cedecea (29). High lytic activity were detected when Pseudomonas strains were tested, while relatively low lytic activity were observed with both Yersinia and Cedecea strains.Therefore, we believed the distortion of mushroom could be the result of bacterial infections. Also, the development of brownish color was detected in large number of A. brazilensis strains only by incubation at 4C, suggesting no specific correlation between bacterial strains and brownish color development. Also, it is considered that the development of brownish color can be the normal changes of A. brazilensis.

  • PDF

Difference in Consumption Behavior and Preferences on Hat Produts (모자제품의 소비행동과 디자인 선호도 차이)

  • Kim, Cha-Hyun;Park, Moon-Hee
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.33 no.7
    • /
    • pp.1038-1049
    • /
    • 2009
  • A hat is an important fashion accessory item for a total fashion coordination and the number of millineries is increasing in the current accessory market. This research provides basic information about the millinery in relation to consumer consumption behavior, preference, and satisfaction with hat products. A survey was conducted among 395 individuals age 20 and over who were quota sampled according to age and gender to investigate the differences between genders and different age groups. The collected data were statistically treated with the SPSS 12.0 program in terms of frequency, percentage, mean, standard error, cross tabulation, t-test, one-way ANOVA, and a Duncan-test. The results are as follows: 1. Respondents wear hats for ornamental purposes regardless of the season. They discard hats when they become out of style 2 to 3 years after the purchase. 2. In general, consumers prefer the baseball cap design among various hat product categories. Achromatic colors were the favorite color tone and the preferred material was woven cloth. 3. Consumers were most satisfied with colors and most dissatisfied with deformation after laundering. 4. There was a significant difference in preferences among the different age groups. Younger consumers were more concerned about individual image and style. Older consumers considered hats as a functional means such as protecting themselves from the sun. 5. There was a significant gender difference. Compared to males, female consumers were more concerned about the quality of sewing and colorfastness than male consumers.

Difference in Growth Characteristics of 5-Year-Old Ginseng Grown by Direct Seeding and Transplanting (품종 증식을 위한 매년 채종시 직파와 이식에 따른 5년생 인삼의 품종별 지하부 생육 특성)

  • Kim, Young Chang;Kim, Young Bae;Kim, Jang Uk;Lee, Jung Woo;Jo, Ick Hyun;Bang, Kyong Hwan;Kim, Dong Hwi;Kim, Kee Hong
    • Korean Journal of Medicinal Crop Science
    • /
    • v.23 no.6
    • /
    • pp.480-488
    • /
    • 2015
  • Background : In order to determine the effects of planting methods on root growth of ginseng varieties, two different methods, direct seed sowing and transplanting were compared in terms of their effects on different root growth characteristics. Methods and Results : Higher fresh root weight was observed in ginseng grown by direct seed sowing. Direct seed sowing of three cultivars (Sunhyang, Chungsun and K-1) resulted in higher yield, whereas no difference was observed in the yield of one cultivar (Chungsun). Gumpoong was highly tolerant to physiological stress, as it showed fewer symptoms of rusty and rough skin root diseases in both direct seed sowing and transplanting. The average main root length per total root length of ginseng grown by direct seed sowing was 33.6%, whereas that of ginseng grown by the average of those by transplanting was 22.4%. Other root growth characteristics, including root length, main root diameter, and number of side roots, improved when the direct seed sowing method was used. Conclusions : To our knowledge, this is the first study reporting the differences in root growth parameters of ginseng varieties grown by direct seed sowing or transplanting at the same planting density. Because of the advantages of direct sowing during ginseng planting, developing new varieties and improving cultivation methods are imperative.

Effects of Gifted Students' Creative Problem Solving Ability by Team-Based Learning (팀기반학습이 영재학생의 창의적 문제해결력에 미치는 영향)

  • Jin, Young-Hun;Son, Jeong-Woo
    • Journal of Gifted/Talented Education
    • /
    • v.21 no.3
    • /
    • pp.703-718
    • /
    • 2011
  • Team-Based Learning can play an important role in gifted education, because that improve decision making, coordination and problem-solving ability through shapely team activity. So, when a program that founded on Team-Based Learning applied to gifted students, investigated the improved effects of creative problem solving ability. Developed programs consisted of total 10 times and were conducted the lesson for 13student (male 3, female 10) of 4, 5th grade gifted students class in S elementary school, Sancheong-gun. The improved effects of creative problem solving ability were selected as the self-checking tool of creative problem-solving ability. Due to a small number of students, nonparametric test has done with the results of before and after, it showed significantly improvements in significance level of 5%. In particular, there was a significant improvement in the field of divergent thinking, critical logical thinking. Therefore, the programs based on Team-Based Learning are effective for enhance creative problem solving ability of gifted students, they will be used widely in the classroom to require creative problem solving ability or the acquisition of knowledge of gifted students.

Challenges of Providing Cervical Cancer Prevention Programs In Iran: A Qualitative Study

  • Bayrami, Roghieh;Taghipour, Ali;Ebrahimipour, Hossein
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.15 no.23
    • /
    • pp.10071-10077
    • /
    • 2015
  • Background: Cervical cancer has become a major public health problem worldwide. Iran, like other developing countries, is facing a number of challenges in managing the disease. This qualitative study documents challenges encountered in cervical cancer preventing programs in Iran. Materials and Methods: In-depth interviews were conducted with 28 participants including eleven patients with cervical cancer, three gynecologic oncologists, five specialists in Obstetrics and Gynecology, five midwives, three health care managers and one epidemiologist in Mashhad Iran, between May and December of 2012. The sample was selected purposively until data saturation was achieved. Data credibility verified via allocated sufficient time for data collection, using member checking and peer debriefing. Data analysis was carried out using conventional content analysis approach with ATLAS. ti software. Results: Findings from data analysis demonstrated 2 major themes and 6 categories about challenges of providing cervical cancer prevention programs including: individual and social challenges (cognitive/behavioral challenges and socio/cultural challenges) and health system challenges (stewardship, financing, competency of health care providers and access to services). Each category included some subcategories. Conclusions: Managing the cervical cancer prevention programs need to include the consideration of individuals, health care providers and health system challenges. Addressing the low level of knowledge, negative attitudes, socio cultural challenges, Poor intersectional collaboration and coordination and intra-sectional management, financing and competency of health care providers are essential steps toward significantly reducing the burdens of cervical cancer.

CC의 구조적 분석을 통한 분류자동화 원리유도

  • 이경호
    • Journal of Korean Library and Information Science Society
    • /
    • v.15
    • /
    • pp.113-151
    • /
    • 1988
  • The enumerative classification schemes do not represent the tiny mass of knowledge embodied in a article in a periodical or in a chapter or a paragraph of a book. But today's information centers regard a tiny spot of knowledge embodied in a article as a class. we call this micro-thought. But the enumerative classification are manual systems, it cannot be a n.0, pplied to the automation of classification. The purpose of this study is to build a general principle for the automatic book-classification which can be put to use in library operation, and to present a methodology of the automatic classification for the library. The methodology used is essentially theoretical, Published works by and about Ranganathan, especially 6th edition of the CC were studied, analyzed. The principle of automatic book classification derived from the analysis of colon classification and facet combinations. The results of this study can be summarized as follows ; (1) This study confined the fields of library science and agriculture. (2) This study represent a general principles for the automatic book classification of library science and agriculture. (3) Program flowcharts are designed as a basis of system analysis and program procedure in library science and agriculture. (4) The principles of the automatic classification in library, science is different from that of agriculture. (5) Automatic book classification can be performed by the principle of faceted classification, by inputting the title and subject code into a computer. In addition, the expected value from the automatic book-classification is as follows (1) The prompt and accurate of classification is possible. (2) Though a book is classified in any library, it can have same classification number. (3) The user can retrieve the classification code of a book for which he or she wants to search through dialogue with the computer. (4) Since the concept coordination method is employed, a tiny mass of knowledge embodied in a article in a periodical or in a chapter or a paragraph of a book can be represented as a class. (5) By performing automatic book-classification, the automation of library operation can be completed.

  • PDF

A Study on the Present Status of Clinical Nurses with Expanded Role (진료협력간호사의 운영현황에 관한 연구)

  • Kwon, Young Dae;Sung, Young Hee;Kwon, In Gak;Hwang, Moon Sook
    • Journal of Korean Clinical Nursing Research
    • /
    • v.14 no.3
    • /
    • pp.99-115
    • /
    • 2008
  • Purpose: The purpose for this study was to identify the present state of Clinical Nurses with Expanded Role (CNERs) and provide basic data to refine the roles of CNERs. In this study, CNREs refers to nurses who perform techniques traditionally done by doctors and use titles such as clinical nursing specialist, educator with consultation, research assistant, coordinator, physician assistant and special examiner. Method: This study was conducted from September 1 to November 12, 2007. Data from 684 nurses from 38 hospitals who responded to the questionnaire were analyzed with descriptive statistics using the SPSS 14.0 program. Results: The mean percentage of time spent was, for direct practice, 41.1%, for education and counseling, 22.8%, for consultation and coordination, 10.4%, for research, 6.8%, for administration, 8.9% and for other activities, 10.0%. The most frequently implemented CNERs, activities included consultation and education for patients and their families, counseling by telephone, history taking, physical examination, reading examination results, psychosocial assessment, managing treatment, input of prescriptions, and writing up patient records, Although not frequently performed, nurses in some fields carried out invasive procedures and prescribed medication and laboratory tests. Conclusion: Although the number of hospital CNERs are rapidly increasing, there is still confusion about the title and framework as well as standards. Furthermore, because some nurses are prescribing medication and laboratory tests as well as performing techniques not traditionally done by nurses, there is an absolute need for a legalized system and systematic education system for the safety of patients who are being cared by all CNERs.

  • PDF