옥내 무선통신 시스템에 적합한 직접형 디지털 주파수 합성기 설계

장용수,강정용,김환용,임순자 원광대학교 공업기술개발연구소 1997 工業技術開發硏究誌 Vol.17 No.-

Frequency synthesizer is essential structural element of frequency hopping system among bandwidth spread spectrum communication method. And condition of frequency synthesizer in mobile communication machine demand high resolution, wide bandwidth, and high switching speed in order to easily acquire and exchange information of various type. In this thesis a proposed direct digital frequency synthesizer(DDFS) using pipelined accumulator for system-speed and control-inverter instead of conventional look-up table, is designed with 0.8μm design parameter of COMPASS tool and simulated with HSPICE tool. In result, a designed DDFS is superior to in integration and power consumption conventional frequency synthesizer.

대륙관계 開閉에 대한 일본의 주도적 역할과 함의 - 894년 일본의 고립주의 선택을 중심으로

한국유교학회 2011 유교사상문화연구 Vol.44 No.-

<P>본 연구는 9세기 일본이 대륙으로부터 스스로 고립을 선택한 이유에 관한 것이다. 당시 견당사 파견 대사인 미치자네가 파견 취소를 청한 상소문에 따르면 당의 쇠퇴와 항해의 위험 때문이라고 한다. 본 연구는 역사적인 기록을 그대로 받아들이기보다 당시의 동아시아의 상황과 일본 내부적인 권력관계를 통해 실체적인 진실에 다가가고자 한다. 연구를 간단히 요약하면, 7세기 천황을 중심으로 한 중앙집권적인 국가의 형태를 발족시킨 일본은 얼마 지나지 않아 천황과 귀족이 대립적인 양상을 보이게 된다. 이런 천황과 헤이안 귀족의 관계는 8세기부터 경쟁이 치열해지다가 9세기 중후반에 이르러서는 귀족이 우위를 점하게 된다. 권력이 셋쇼정치(섭정)를 하던 후지와라 가문의 손에 들어가자 이에 따른 여러 가지 사회현상이 벌어지는데, 그 중에 하나가 사무역 활성화였다. 후지와라가 이전의 신라와 당나라와 행해오던 공무역을 사무역으로 전환함으로써 외국과의 무역에서 나오는 이익을 자신이 차지하려는 것이었다. 이러한 후지와라가를 중심으로 한 귀족들의 욕심이 894년 견당사 파견 중지로 상징되는 고립주의로의 전환을 초래하는 하나의 이유가 된 것으로 보인다. 따라서 일본을 고립주의의 흐름으로 몰아간 세력은 후지와라가를 중심으로 한 귀족 세력이며, 이런 흐름의 고착은 천황이 권위를 보여줄 수 있는 외교권 행사 기회를 봉쇄할 뿐만 아니라 사무역 활성화로 막대한 재물을 축적할 수 있었던 것이다. 이렇게 해서 헤이안 귀족들은 헤이안 시대의 상징인 ‘화려함’을 12세기 새로운 세력이 등장할 때까지 누릴 수 있었던 것이다.</P>

大學 蹴球選手의 等速性 筋力 特性 分析

장용수 安東大學 1994 安東大學 論文集 Vol.16 No.1

운동 경력이 10.5±1.77년에 달하고 듣는쪽이 우측인 대학 축구 선수 8명이 대상으로 등속성 운동 측정 기구를 통해 60˚/sec, 180˚/sec 및 240˚/sec 등속도 운동시 좌우 대퇴 굴신력을 측정하여 분석한 본 연구 결과를 요약하면 다음과 같다. 1) 최대 우력치는 굴근력에 비해 신근력이 큰 것으로 나타났으며, 운동 속도가 증가할수록 감소하는 경향을 나타내었다. 2) Deficit ratio는 전체적으로 정상 범위에 있었으나, 개인별 결과를 볼 때, ±10%의 범위를 벗어나는 사례수가 전체의 44%에 달했다. 3) 신전시 최대 우력에 대한 굴곡시 최대 우력의 비율은 유의차가 발견되지 않았으나 우측값이 높은 경향을 나타내었다. 4) 최대 등속성 우력치를 나타내는 관절 각도는, 굴곡시에는 운동 속도가 빠를수록 커지고 신전시에는 운동 속도가 빠를수록 작아지는 경향이 나타내었다. 5) Average power는 굴곡시보다 신전시 값이 큰 것으로 나타났으며, 운동 속도가 빠를수록 신전시와 굴곡시 모두 증가하는 경향을 나타내었다. 6) Total work는 좌우측간에 유의차는 없었으나 우측이 높은 경향을 나타내었고, 신전과 굴곡간의 비교에서는 신전시 값이 높게 나타났다. 7) Endurance ratio에서는 유의차가 발견되지 않았으며, 굴곡시 우측값 이외에는 모두 60%이상의 정상 범위에 있었다. In order to evaluate the isokinetic strength at knee flexion and extention, 8 soccer player enrolled university soccer team were selected. These all subjects' dominant limb 10.5±1.77 yrs. The results were as follows; 1. Peak torque output at flexion were higher than at extention. As the exercise speed increased, peak torque output was reduced. 2. Deficit ratio was entirely in normal range, but abnormal cases were detected(about to 44%) in the light of each case. 3. In the peak torque ratio of hamstrings to quadriceps(Flexion/Extension), significant difference was not detected between right and left in all exercise speeds, but showed a higher tendency in right than in left. 4. Angle of peak torque at flexion was increased as the exercise speed increased. But at extension, the angle was decreased as the exercise speed increased. 5. Average power at extension was higher than at flexion, and showed increasing tendency in all cases as the exercise speed increased. 6. Total work of right lower limb was higher than that of left lower limb in spite of no significant difference. And the result at extension was higher than at flexion. 7. There was no significant difference in endurance ratio. From the above results, it can be concluded that reinforcement exercise which corrects the unbalance of knee joint function in soccer player is necessary.

배드민턴選手의 性格特性에 關한 調査硏究 : 男子高校選手 中心으로 Chiefly in the male players in high school

張龍洙 慶北大學校 師範大學 體育學硏究會 1984 體育學會誌 Vol.12 No.-

The purpose of this study is to understand correctly the personality of the badminton players in boys' high school and to find out good players and train them effectively by developing their specific personality, because personality is a psychological condition for good players. In order to advance the method of training players and obtain fundamental data through understanding properly the character and personality of each player, the survery covering 50 high school badminton players was conducted in three areas from December, 1983 to August, 1984. The findings are such as: 1. When game-history differs; Sociability is highest in the group which has more game-history, while general activity is highest in the one with less history. peculiarly, the impulsiveness placed eighth in the more game-history group is shown second in the less history group. 2. When the role differs; Emotional stability is highest in the regular player group, while sociability is highest in the substitute player group. It is peculiar that dominance placed second in the regular player group is shown at the bottom in the substitute player one. 3. When the training-place differs; Sociability is highest in the group training out of school, while emotional stability is highest in the one training in school. It is peculiar that impulsiveness is shown at the bottom in both groups.

장중년층 여성의 %Fat 및 Vo2max 조사분석 : 안동 지역을 중심으로 Focused on the Ahndong Region

장용수 安東大學 1995 安東大學 論文集 Vol.17 No.1

우리나라 중소도시 장중년 여성들의 심폐기능 평가에 대한 기초자료를 제공하고자 안동지역에 거주하는 35-49세의 주부 60명을 대상으로 주기적 운동집단, 비주기적 운동집단 및 비운동집단으로 분류하여 피지후 및 심박수를 측정하여 %Fat와 MAP를 산출한 본 연구 결과를 요약하면 다음과 같다. 1. 상완배부(triceps skinfold) 및 견갑하부(subscapular skinfold)의 피지후 측정 결과 및 이로부터 산출한 체지방율(%Fat)은 집단간 유의차는 없었으나 주기적 운동집단에서 낮고 비운동 집단에서 높은 경향을 나타내었다. 2. 안정시 심박수는 세집단간에 별 차이가 없었으나, 스텝테스트 운동부하후에 측정한 심박수에서 운동강도가 강할수록 주기적 운동집단에 비해 비운동집단의 증가폭이 큰것으로 나타났다. 3. 운동시 최대산소 섭취량은 세집단간 유의차는 없었으나 주기적 운동집단에서 높고 비운동집단으로 갈수록 낮은 경향을 나타내었다. The purpose of this study was to elucidate the %Fat and Vo2max of mature and middle aged female residing in Andong region. The subjects oarticipated in this study was 60 females aged from 35 to 49 years old, and were divided into REG(Regular Exercise Group), IEG(Irregular Exercise Group) and NEG(Non-Exercise Group). The results were as follows : 1. The results of triceps and subscapular skinfold thickness, and of calculated %Fat from skinfold thickness were not significantly different among three groups, but showed the tensency of low results in REG and high results in NEG. 2. Heart rate results of resting state were not different among three groups, but those increasing rate after step test exercise were low in REG and high in NEG incresinply in accordance with exercise loads(step frequencies) incresement. 3. Vo_(2)max calculated from heart rate after step test exercise was not significantly different among three groups, but showed the tendency of high results in REG and low results in NEG.

社會體育意識에 관한 調査硏究 : 安東地域 住民들을 中心으로

장용수 安東大學校 安東地域社會開發硏究所 1991 安東開發硏究 Vol.2 No.1

The investigation was performed through the questionnaire, in which a total of 916 respondents were analyzed on their consciousness of socio-physical education. The results can be summarized as follows : (1) The consciousness of their own health is generally affirmative but the female, the aged, and the labor group there should be regular planning in which they can be provided with proper knowledge and activities on socio-physical education. This task can be more activated by means of mass media. (2) It is only the professional workers and the young generation that enjoy the variety of sports, but for the labor group, the aged, and the female group, they cannot afford it due the their limitation of time and financial state. To remedy their disadvantage, an practical and professional exercise program and handy facilities are advisable. (3) The large part of the population respond that they are willing to take part if a suitable program is available. In this aspect we can safely say that the exploration of a suitable sports program would sufficiently motivate their willing participation. (4) Most of the population show a great dissatisfaction with the existing facilities, which can be easily overcome by providing them with proper environment and facilities. (5) The population's desire for the positive support from administration is great. To contribute to the activation of socio-physical education as well as to meet the desire, the government is required to formulate a policy to invest for the national health ; that is, to allow them public places for athletic activities, such as unoccupied places, green belts, hills or riversides in the area.

지역대학생의 MAP 조사분석

장용수 安東大學 社會科學硏究所 2002 社會 科學 論叢 Vol.14 No.1

The paper is to investigate and evaluate physical fitness in the regional university students. The subjects were 150 ADNU male students who were divided into 3 groups(50 Regular Exercise Group, 50 Irregular Exercise Group and 50 NON-Exercise Group). The results obtained using above estimation expressions were as follows. 1. HR. Heart rate results of resting state were not different among three groups, but those increasing rate after step test exercise were low in REG and high in NEG increasingly in accordance to exercise loads(step frequencises). 2. MAP Regular Exercise group's MAP was 61.77㎖/kgmin, Irregulas Exercise group's 43.47㎖/kgmin and NON-Exercise group's 39.28㎖/kgmin. There are significant among three group's.

제어 반전 방법을 이용한 직접형 디지털 주파수 합성기 설계 ( Design of Direct Digital Frequency Synthesizer Using Control inverting Method )

장용수,김형균,김태형,김환용 대한전자공학회 1997 대한전자공학회 학술대회 Vol.1997 No.11

한국과 미국의 문화적 차이가 대형마트에 대한 고객자산 구성요인과 사람들의 신뢰 및 충성도에 미치는 영향에 대한 연구

장용수,차상윤,박희준 대한산업공학회 2015 대한산업공학회 춘계학술대회논문집 Vol.2015 No.4

洋弓選手의 發射姿勢에 對한 機能學的 分析 : 國家 代表 女子選手를 中心으로

張龍洙 慶北大學校 師範大學 1983 體育學會誌 Vol.10 No.-

This is a study on the shooting forms of three female players on the top-ranking list of the world archery, who participated in the 9th Asian Games. The purpose of this study is to write a proper prescription for the training of the players' shooting form and its influence upon the record, by making a functional analysis on DAA(Drawing arm Angle), BPA(Bow perpendicular Angle), AHA(Arrow Horizontal Angle), BAA(Bow Arm Angel), RHD(Release Horizontal Distance), RPD(Release Perpendicular Distance), RT(Release Time) and FTT(Follow Through Time) which have a decisive influence upon the shooting form. The outline of this thesis is as follows; 1. DAA The shortest upper-armed BYS's DAA was the biggest and the longest upper-armed KMY's was the least of the three subjects. The arrow group distribution and the record of BYS who had the widest deviation were bad, while those of KMY who had the least deiation and the lowest mean value were good. As the result, the ideal DAA can be said to range from 1°5' to 3°5' 2. BPA BYS' BPA, 3 degree on the average, was the biggest and KJH's, 2 degree, was the least. In the light of the fact that the shortest BYS's BPA was the biggest, is can be inferred that, first, she did ovee drawing, second, the strength of the bow was not suitable for her physical power, third, the choice of arrows was wrong. 3. AHA BYS's AHA, which was 0.1941 degree, was the biggest and the tallest KMY's, 0.017 degree, was the least. Cosequently, AHA can be said to have a close correlation with the height. The AHA of KJH on the top-ranking list of the world archery, was 1.57 degree, the medium of the three subjects and her erroneous difference between shots was 0.01 degree. Furthermore, it seems, that her condition of bow arm and draw arm was good, and the position of nocking point and arrow rest was accurate. Therefore, the position of nocking point and arrow rest can be said to have a great influence upon AHA. 4. BAA The BAA of each subject was analyzed in order to know the most desirable Bow Arm Angle. It was shown that the tallest(166cm) KMY's average was -0.58 degree and the shortest(156cm) BYS's was +0.67 degree. KMY was estimated to maintain the best BAA of the threessubjects, so it might be effective for KJH to lower bow by about 1 degree. 5. RHD The moved distance of the central point of elbow joint at the moment of release was measured in order to know the release style, the umecessary shaking of upper body at the time of release and its subsequent effect on arrow group. As the result, it was in inverse proportion to the height as the shortest BYS's average was 8.9147cm and the tallest KMY's was 6.6722cm. In the release style, the three subjects all together adopted the sliding release. Therefore, it's proved that physically short player with short upper arm has considerable disadvanages at the release. 6. RPD The perpendicularly moved distance of the central point of elbow at the moment of release, was measured. The release style what can be called the last motion in shooting was observed, and the relation of physical condition and RPD was analyzed. 7. RT The time that it would take for the elbow to move as for as RHD was measured and analyzed in order to know the most ideal RT. As the result, it was proved that the concentration, holding and relaxation of the player and her figers pulling the cord at the moment of release were correlative RT is thought to be in proportion to RHD, as BYS with the farthest RHD has also the longest RT. And also it's proved that the release was not done in the state of relaxation because the whole balance of upper body's muscle necessery to release was broken by attempting over drawing in order to induce the same strength as the long upper-armed player. 8. FTT FTT of the subjects in shooting motion was measured and analyzed in order to find out the mutual difference and the most desirable FTT. As the result, it was found out that the three players all together practised Follow Through for too short time Therefore, it's proved that Follow Through over at least 2 seconds is requised to maintain more sufficient time and reflect shooting form through Following Through.