Catalytic oxidation of hydrogen at nanocrystalline palladium surfaces

Oh, Chanick,Hong, Kwan Soo,Lee, SangGap,Park, Chung-hyun,Yu, Insuk IOP Pub 2006 Journal of physics, an Institute of Physics journa Vol.18 No.13

<P>We studied hydrogen adsorption onto the oxidized nano-palladium surface using <SUP>1</SUP>H NMR. In the α phase, the incoming hydrogen molecules dissociate and form OH<SUB>ad</SUB>. We confirm that the <img SRC='http://ej.iop.org/images/0953-8984/18/13/001/cm210477ieqn1.gif' ALIGN='MIDDLE' ALT='\mathrm {OH_{ad}} \rightarrow \mathrm {H_2O}(\uparrow) '/> transformation occurs during the α–β phase transition by observing a decrease in OH<SUB>ad</SUB> resonance intensity.</P>

층위구조와 운율구조를 통한 음절분석

오관영 여수대학교 2001 論文集 Vol.16 No.-

The purpose of this paper is to suggest a new approach to syllable structure, which can show the whole processes of stress shift and vowel alternations. The approaches I have attempted to show in this paper are three types, these being rule-based, prosodic, and harmonic approaches. However from the comparison of existing methods we can find a few problems in dealing with stress shift and vowel laxing compositely. They dealt with the syllable just partially on the linear, which made us overlook the other important phenomena in the syllable structure. When we look at the stress movement, it causes the vowel lax or tense. Therefore the words related with the phenomena will be dealt with consideration to dual sides. Now this paper will adopt the level approach to show more appropriate explanation than the existing analysis.

중국의 WTO 가입이 광주·전남 지역경제에 미치는 영향에 관한 연구

오진근,백초원,김관선 조선대학교 경영경제연구소 2001 經營經濟硏究 = Management and economics research Vol.24 No.1

재난관리조직의 실태분석과 발전방안

권오한,남상화,이춘하 한국화재소방학회 2001 한국화재소방학회논문지 Vol.15 No.1

재난관리업무 자체가 매우 복잡하고 각 부처간에 서로 연계되는 분야가 많아 여러 가지 어려움이 많지만 행정 조직상으로 볼 때 재난관리업무가 분산되어 있으면서도 총괄 조정하는 기능이 미흡하고, 재난관리 담당인력이 부족 할 뿐만 아니라 전문성도 결여되어 있고, 대개는 이들 부서들이 업무가 과중하여 기피하는 부서 정도로 인식되고 있는 실정이다. 특히, 우리나라의 경우 재난을 양분화하여 인위재난 및 자연재해를 분리하여 그 소관부서 및 법체계를 달리하고 있어 비효율적 재난관리체제를 취하고 있어 현재 미국에서의 재난이론의 개념 즉 "재난은 그 유형에 관계없이 계획, 수습 및 복구의 양태는 동일하다"는 원칙에 반하는 것이다. 그것은 지방자치제가 시행되면서 아직은 중앙과 지방의 역할이 불분명하거나 분명하더라도 서로 그 역할을 해 내기를 바라는 점은 철저한 계획수립과 점검으로 해결해 나가야 할 사항이다. Ⅰ.Introduction. A government goal at the present is established to make a welfare nation and to keep people's safe living, but it is criticized that when a large-scale disaster happens, the authority concerned could not deal with it, causing many people injured and material damage. Moreover, in these days, cities have many risk factors. Extremely large and intelligent building, industrial facilities and underground equipment have many risk themselevs along with scientific progress. To cope with disaster effectively, government must have efficient organization, skillful personnel, tool, facilities and so on. To reduce the damages, what's the most effective government organization? Ⅱ. Government organization for managing disaster In a few decades, a large-sized accidents broke out in Korea, for example, collapse of Sampoong deprtment store, break of Sungsoo bridge, explosion of Daegu city gas, gas explosion accident at Ahyon-dong etc. But government has not any adequate response organi zation. Especially, after collapse of Sampoong department store broke out, Disaster Management Act is enacted to solve the problem. According to Disaster management Act, disaster is limited in manmaid disaster. Therefore, in this thesis, disaster management is inspected theoretically, organization of disaster management for pattern of disaster, and role, duty of government organization, emergency relief organization system and actual conditions art analyzed. There are some problems. There art trials and errors. The government has changed the disaster management. But zation by the disaster management law. The organization consists of central and local government. But both of government do not work together harmoniously. In thesis, I could like to introduce the advanced nations disaster management organization, and study our central, local government organization. Ⅲ. conclusion Change and development of the government disaster managementorganization is the goal of this theses. We have to increase public service in response and manage disaster. Protecting civilian's life from the disaster is very important responsibility of government. There would be better way of government disaster management organization.

상악골 전벽골 겸손에 대한 재건술에 있어서 동결건조 콜라겐 매식과 소강판고정술의 임상적 유용성

오승환,장관식,조병호,민승기,이동근,김수남 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.6

Maxilla is located in midfacial area and has intimate relationship with adjacent anatomical structure such as nasal cavity, orbit, oral cavity, and zygoma. Skeletal defects of maxillary antral wall may be developed by various postoperative causes for comminuted maxillary fractures, tumors of head and neck area or cystic lesions of maxillary sinuses. If these bony defects are left untreated state, this results in several postoperative complications such as soft tissue impingement into bony defects or dysfunction of sinus mucosa. Hence, these defects should be pertinently treated as possible. The main purpose of such surgery is to preservation of normal physiologic function of maxillary sinus. In the past, a variety of materials have been used to reconstruct defects of the maxillary antral wall. Alloplastic materials are popular today because of availability without an additional operation and their ease of use. With favorable results and review of related literatures, we report the availability of lyophilized collagen implantation and microplate fixation as the reconstructive surgical methods on the defects of maxillary anterior wall resulted from various reasons.

4,5세 아동의 읽기발달에 관한 연구

권오식,윤혜경 인제대학교 아동ㆍ가족복지연구소 1996 아동ㆍ가족복지연구 Vol.1 No.-

본 연구의 목적은 아동의 한글터득과정을 밝혀보고자 하는 것이다. 읽기의 획득을 문자와 소리 사이의 대응관계를 터득하는 것이라 한다면, 음소문자이면서 음절문자라는 특성을 띄고 있는 한글은 단어읽기(음성단어-시각단어 대응), 글자읽기(음절-글자 대응) 그리고 자소읽기(음소-자소 대응)가 가능하다. 실험 1과 2에서는 자소읽기 이전의 아동들의 글자읽기에 관하여 알아보고자 하였다. 실험 1에서는 4세 아동을 대상으로 글자읽기에 요구되는 '한 글자는 한 음절과 대응된다'는 지식이 있는지 살펴보고자 음절인식과 글자수-음절수이 대응여부를 살펴보았으며, 실험 2에서는 '동일한 글자는 언제나 동일하게 발음된다'는 지식을 검토하고자 자기이름의 글자가 다른 단어 속에 있을 때에도 읽을 수 있는지 보았다. 실험 3과 4에서는 자소읽기를 위한 글자해체(자소출현)과 음절해체(음소출현)의 시기를 검토하였다. 실험 3에서는 4, 5세 아동을 대상으로 자소에 의한 글자분류과제를 실시하였고 실험 4에서는 자소대치과제를 실시하여 글자 속의 자소가 음소와 대응능력을 검토하였다. 그 결과, 4세 아동에서는 글자읽기가 가능하며 자소읽기는 5세가 되어야 시작된다는 것을 보여주었는데 이를 한글터득과정과 관련하여 논의하였다. This study aims at figuring out the courses of Hangul acquisition in children. Reading skill acquisition is defined as 'the acquisition of correspondence between the written language and spoken language' in this study. The characteristics of Hangul enable the following three kinds of reading, word reading, 'Kulja' reading and alphabetic reading. This study focused on the ways of acquisition of alphabetic reading. In Experiment Ⅰ and Experiment Ⅱ, 4-aged kindergarten children were assessed whether they have any insight to (1) one-to-one correspondence between 'Kulja' and Syllable, (2) countability of syllables and (3) the consistancy of pronounciation of "Kulja'. All these measure are closely related to the ability to handle syllables. In Experiment Ⅲ, 4, 5-aged children sorted 'Kulja' on the basis of a letter in the 'Kulja'. Children's ability to disamalgam the gestalt-like 'Kulja' into its part is reflected in the performance of 'Kulja' sorting task. Experiment Ⅳ was carried out to find the children's metaknowledge about grapheme, phoneme and its mutual relationship. 'Grapheme-Substitution task' was adopted to measure the children's phoneme/grapheme manipulation ability. The result was that it is possible for 4-aged children to read Hangul by 'Kulja reading' but they have not any ability to disamalgam the 'Kulja' and syllable until 5-aged. These result are discussed in relation to the Hangul Acquisition.

가방 끈 변화에 따른 보행동작 분석

김관영,오정환,최대우 忠南大學校體育科學硏究所 2006 體育科學硏究誌 Vol.24 No.1

The purpose of this research lies in examining how school bag strings influence the walking posture of middle school students, so as to prevent their waist and shoulder pains that can be caused by adjusting school bag strings inappropriately and to provide some basic information that can assist in perfect body posture education for them. Subjects with a marker on their body are asked to walk in accordance with the metronome and every subject was recorded and analyzed. The significance level of the data is chosen to be 0.05.(or equivalently, 5%) It is concluded as the following. 1) In contrast to the type D of loose string bag, there are no significant differences in the subject's stride in type B of normal bag string' length and in type C of tight string bag. 2) There is no noticeable difference of the ankle and knee angles according to the length of the bag string when the right heel touches the ground 3) The hip angle while the right heel touching the ground is the smallest in type D of loose string bag. The result as A>C>B>D shows an important effect of bag string on the hip angle. 4) When the right heel touches the ground, the anterioposterior angle of upper body is the most in type D. The result as D>B>C>A shows a noticeable effect of bag string on the angle of inclination 5) There is no significant difference in the angles of ankle, knee, hip and anterioposterior angle of head according to the length of the string when the left toe separates from the ground. 6) At the moment the left toe separates from the ground, the anterioposterior angle of upper body is the most in type D. The result as D>C>B>A shows a significant effect of bag string on it. 7) There is noticeable difference neither in the angles of ankle, knee and hip nor in the angles of anterioposterior angle according to the length of bag string when the left heel touches the ground. 8) At the moment the left heel leaves the ground, the anterioposterior angle of upper body is the most in type D. The result D>C>B>A shows an important effect of the bag string on it. 9) There is no significant difference in the angles of ankle, knee, hip and anterioposterior angle of head according to the length of bag string when the right toe leaves the ground. 10) The anterioposterior angle of upper body is the most at the moment the right toe separates from the ground. The result D>B>C>A shows a noticeable effect of bag string on it.

한우의 간이물질 대사효소의 활성도

이관복,박승춘,한경오,윤호인 충남대학교 수의과대학 동물의과학연구소 1994 動物醫科學硏究誌 Vol.1 No.-

It is important to study the activity of drug biotransformation enzymes, because from a pharmacological and therapeutic point of view these enzymes are resposible for eliminating most drugs. Their level is ciritical when deciding the dose regimen. (From a toxicological perspective, the role of these enzymes varies, with some of them being directly responsible for activation of certain chemicals to reactive intermediates with deleterious consequence to the animal.) Experiments were designed to measure in vitro, the activity of drug metabolizing enzymes in liver of Korean native cattle. The microsomal monooxygenase activities were evaluated utilizing specific substrates. The activities of BPDM and TST 6β-hydroxylase were seemed to be high level relatively to other monooxygenzses such as ECOD, EROD and AH. Interestingly, TST 16α-hydroxylase which is a maker enzyme for CYP ⅠLA was not detected in Korean native cattle. These results sugest that Korean native cattle have high contents of CYP IIB1 and CYP IIIA.

靑少年의 身體的 發育發達에 關한 硏究

洪寬伊,文炳容,盧成圭,吳壽一 江原大學校附設體育科學硏究所 1987 江原大學校附設體育科學硏究所論文集 Vol.- No.12

This study in to know the development transition of juveniles age(10∼17 of ages) about the relationship of natural developmental, patterns, according to sexes, ages and regions by vertical and crossing methods. To analyze the degree developed through intended training and its related meaning, the objects are chosen from 4 regions(urban, farming and mining community etc). The objects for vertical study are 2000 persons : crossing study, 6400 : experimental study, 320 The results through analyzing statistical date by electronic computer, based on the materials investigation, measurement and experiment, from July 1 to Nov. 30 1987, are following 1. The aspect of the form This report was represented that the body measurement value of the height, the weight, the chst-girth, and the sitting height was continuously increased the growth development till 10∼17 age, according to increased with age, and the cross-sectional change have a tendency both for male and female to excess crossing change. 2. The aspect of the function (in the viewpoint of action fitness element) 1) This report was showed that the fitness of the male continuously in creased till 17 ages, and that of the female in distinctly decreased or maintained after 14 ages. 2) The exercise items prevailed the crossing change were the speed (100M sprint), the power (throwing) and endurance of total body (longtime running (female)) And the exercise items prevailed the vertical change were the power (long jump), endurance (muscle endurance : chinning, chin hanging, sit-ups, endurance of total body : 800M and 1,000M lony-time running) 3. The results through experiments 1) Grip strength (1) Maximal strength The development of strength is almost parallel to the development of body and it shows rapid development speed, especially, in the adolescent juveniles. (2) Muscle Endurance There are outstanding development in both sexes. Because the development speed become slow after being 15 of ages, applying muscle endurance training from being 14 of ages is effective. 2) Long-time running In both sexes the rate of increase is high after they are 15 years old (or after being of 15 ages). To anticipate the good effect of training of long-time running, therefore, it is effective to apply the training after they are 15 years old (or after being 15 ages)

운동선수의 임장불안에 대한 연구

홍관이,이광재,김두경,부기원,노성규,한상준,박기동,오수일,문병용,이철규,박장평,엄기진,박남환 江原大學校附設 體育科學硏究所 1984 江原大學校附設體育科學硏究所論文集 Vol.- No.9

This study is designed to grasp the elements and situations of stage fright in order to propose a part of ways to cope with it. We make 511 top-class high school players, male and female, in the central districts (Seoul, Inchon, Kyungki, Chungbuk, and Kangweon Province) on object of questionnaire, and get the following results. Through players generally have all-round characters they show weakness in the superiority and emotional stability while showing strength in the sonformity. This fact comes to be related to the elements which cause stage fright. Physiological changes also have many effects on the symptom of stage fright. Especially, stage fright increases when players show sensitive reaction to the self-consciousness of final consequence which comes from the tension or uneasiness of sympathetic nerve, Thus, it turns out that players make use of reducing psychological burden by physical exercise or adjusting the level of demanded result in order to release the stage fright.