• 제목/요약/키워드: Width

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Wide Data-width DRAM을 위한 Flexible Redundancy Scheme (A Flexible Redundancy Scheme for Wide Data-width DRAM)

  • 전용원;이정환김석기전영현
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 1998년도 추계종합학술대회 논문집
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    • pp.711-714
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    • 1998
  • 본 논문에서는 wide data-width DRAM을 위한 flexible column redundancy scheme을 제안하였다. 구현된 redundancy scheme은 DB line shift method를 사용하여 wide data-width를 갖는 고집적 DRAM에 적용할 때 기존 redundancy scheme보다 더 작은 redundancy cell 면적과 fuse개수를 가지면서 더 큰 flexibility를 가지게 되었다.

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하악 절치 근원심폭경과 법랑질 두께의 관계 (Relationship between mesiodistal width and enamel thickness in mandibular incisors)

  • 한욱;강성남;임성훈
    • 대한치과교정학회지
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    • 제41권3호
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    • pp.184-190
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    • 2011
  • 하악 절치부에서 보이는 총생은 하악 절치의 큰 MD/FL (mesiodistal/faciolingual) 인덱스와 관련이 있음이 보고되었다. 큰 MD/FL 인덱스를 보이는 절치에서 치간 삭제를 통해 근원심폭경을 줄여 MD/FL 인덱스를 줄이고 공간을 확보하는 방법이 정당화되기 위해서는 MD/FL 인덱스가 클수록 인접면 법랑질 두께가 더 두꺼워야 할 것이다. 본 연구의 목적은 하악 절치의 MD/FL 인덱스, 근원심폭경, 최대풍융부/치경부폭경비와 같은 치아의 형태적 요인과 인접면 법랑질 두께 사이에 상관관계가 있는지를 조사하는 것이었다. 발거된 하악 절치 40개에서 MD/FL 인덱스, 근원심폭경, 최대풍융부/치경부폭경비를 구하였으며, 근원심폭경을 구한 선상까지 순면을 연마하여 그 단면에서 법랑질 두께를 측정하였다. 치경부근원심폭경은 순면을 연마한 단면에서의 좌우측 백악법랑경계 사이의 폭경을 측정하였다. 이후 법랑질 두께와 MD/FL 인덱스, 근원심폭경, 최대풍융부/치경부폭경비의 상관관계를 조사하였다. 연구결과 하악 절치의 법랑질 두께는 편측에서 $0.75{\pm}0.07mm$였고, 근원심폭경은 $5.56{\pm}0.40mm$였다. 법랑질 두께와 근원심폭경 간에는 유의한 상관관계가 있었지만(R = 0.68), 법랑질 두께와 MD/FL 인덱스, 법랑질 두께와 최대풍융부/치경부폭경비 간에는 상관관계가 없었다. 이는 근원심폭경이 큰 치아에서는 치간 삭제를 더 많이 할 수 있지만, 동일한 근원심폭경을 갖는 절치들의 경우 MD/FL 인덱스가 큰 하악 절치 또는 최대풍융부/치경부폭경비가 커서 삼각형의 형태를 갖는 하악절치에서 치간 삭제를 더 많이 할 수는 없다는 것을 나타낸다.

벨트의 피복압이 인체 생리에 미치는 영향에 관한 연구 (A Study of Physiological Influence on Human-body According to Clothing Pressure of Belt)

  • 장지혜
    • 대한가정학회지
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    • 제36권6호
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    • pp.85-94
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    • 1998
  • In this study we tested the physiological influence on human-body according to clothing pressure with reduction rate and varied posture using three kinds of belt with different width. The width of belts were 2.5cm, 3.5cm and 4.5cm, and reduction rates of belts were 0%, 2.5% and 5% of the subject/s waist size respectively. the measured postures were standing state and sitting stste in the chair. The reasults are as follows; 1. Clothing pressure was high in the order of Side part>Front part>Back part and the rate fo change in the side part was highest, according to the reductio rate of belts. The more the width of belt was wide, the less the clothing pressure was small, and this kind of phenomenon could be explained by "The Principle of the power". 2. Both the rate of reduction of belt and the change of average skin temperature in accordance with the width of belt is small, however, the more the width of belts is wider and the reduction rate is bigger, the more the skin temperature at the waist part is increased. 3. The blood pressure and pulse was influenced when the width of belt was narrow and the reduction rate was high. 4. A sense restraining was much influenced by the width of belt, especially when the width of belts was wide, the significant difference was permitted.permitted.

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방사성핵종(放射性核種) $^{131}I$$^{198}Au$에서 Window 폭(幅)에 따른 계수측정(計數測定)에 관(關)한 연구(硏究) (A Study of Counting Efficiency according to the Window-width on Radionuclides $^{131}I\;and\;^{198}Au$)

  • 박성옥
    • 대한방사선기술학회지:방사선기술과학
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    • 제7권1호
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    • pp.85-92
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    • 1984
  • It is a esperimental report to investigation for optimum window-width on radionuclides $^{131}I\;and\;^{198}Au$ The obtained results were as follow; 1. In case of $^{131}I$, 1) The lowest counts produced at the window-width of 10KeV and 20KeV. 2) The count rate, more increased, when the window-width more opened, but the counting efficiency is very good between 70KeV and 130KeV window-width (19.23% -35.71% about the peak energy). 3) The heighest counting rate per KeV of window appeared at 130KeV window-width. 4) BKG counts increased proportionally to the wider window as 5.473 + 0.016 cpm. 2. In case of $^{198}Au$ 1) The lowest counts appeared at 10KeV and 20KeV window. 2) Count rate more increased, when window-width more opened, but the counting efficiency is very good between 80KeV and 140KeV window (19.46% - 34.06% about the peak energy). 3) The highest counting rate per KeV of the window appeared at 140KeV window. 4) BKG counts increased proportionally to the wider window-width as 4.74 + 1.09 cpm.

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색상과 톤, 넥타이 폭이 남성복 이미지에 미치는 영향 (The Effect of Hue, Tone, and Necktie Width on Men's Wear Image)

  • 정수진;최수경
    • 한국의상디자인학회지
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    • 제12권3호
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    • pp.33-42
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    • 2010
  • The purpose of this study was to investigate the effect of hue, tone, and necktie width on men's wear image. The experimental materials developed for this study were a set of stimulus and response scales. The stimuli were 12 color pictures, in which the hue(red, blue), tone(lt-shirt/dk-tie, dk-shirt/lt-tie), and necktie width(narrow, medium, width) were manipulated. The 7-point scale was used for evaluation of men's wear image. The subjects of this research were 120 female college students living in Seoul, Gwangju, Jinju, and Masan. The investigation was carried out at April-May 2009. The data were analyzed by using SPSS program. Analysis methods were ANOVA and Duncan-test. The results of this study were as follows.; The analyses of men's wear image according to hue, tone, and necktie width revealed that the concerned factors are four characteristic dimensions of ability-elegance, attractiveness, appeal-activity, and warmness. Hue showed an independent effect on ability-elegance, appeal-activity, and warmness. Tone showed an independent effect on warmness. Necktie width showed an independent effect on appeal-activity. In addition, interaction effects of hue and tone on ability-elegance were found. Interaction effects of hue and necktie width on ability-elegance and attractiveness were found.

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시각적 평가에 의한 개더 드레이프 형상 분석 (Analysis of Types of Gather Drape with Visual Evaluation)

  • 이명희;정희경
    • 한국의상디자인학회지
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    • 제7권1호
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    • pp.33-40
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    • 2005
  • Gathering is method used to control fullness along a seam line. The purpose of this study was to investigate the relationship between the quantitative research and qualitative method; the effect of gather and the types of gather drape. The experimental design consists of four factors: (l) three kinds of different weight and thickness of fabrics (2) three kinds of stitch densities (3) five kinds of ratio of gathers (4) three kinds of grain directions. Therefore one hundred thirty five (135) samples were made. And utilized SPSS WIN 10.0 Package in data analysis. The results of this study were as follows; First, after frequency analysis, side height, hem line width, node depth, node count, node width accorded with these result data recording. Second, after correlation analysis, side height related with front statements. Side height and entire visual was negative correlation. Hem line width, node depth, node count with section statements was negative correlation but node width at section statements was positive correlation. Third, after $k^2$ analysis, front picture parts getting excellent evaluation were 1st side height, 3rd hem line width, 4th node depth, 3rd node count, 3rd node width. And section illustration parts getting excellent evaluation were 4th side height, 1st hem line width, 2nd node depth, 3rd node count, 4th node width.

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한국인(韓國人) 소아(小兒)의 부착치은(附着齒齦)에 관(關)한 임상적(臨床的) 고찰(考察) (CLINICAL CONSIDERATIONS ON THE ATTACHED GINGIVA OF THE CHILDREN IN KOREA)

  • 문제원
    • 대한소아치과학회지
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    • 제5권1호
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    • pp.27-32
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    • 1978
  • To corroborate that the width of attached gingiva should be changed according to ages, and what relationships between the changes and the results of Glickman's clinical tension test would be, The author measured the width of attached gingiva of 85 Korean children in male, 94 Korean children in female from 8 to 11 ages and performed clinical tension test. The results were as followings; 1) At midline region of each evaluated teeth, Width of attached gingiva was the narrowest at midline region of deciduous canine, and nearly same at midline region of central incisor and lateral incisor. 2) At interproximal region of each evaluated teeth, Width of attached gingiva between left and right central incisors was the narrowest, that of between deciduous canine and lateral incisor, and between lateral incisor and cental incisor were the widest at maxilla and All were nearly same at mandible. 3) In general, width of attached gingiva of interproximal region was wider than that of midline region. 4) In this study, width of attached gingiva tended to be increasing according to ages both at maxilla and at mandible. 5) Compared maxilla with mandible, Width of attached gingiva of maxilla was wider than that of mandible. 6) The results of tension test were it that Over-all incidence was the highest in 8 year old children who had the narrowest width of attached gingiva at frenum attached region and tended to be decreasing according to ages from 8 to 11 years.

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한국재래산양 머리뼈에 대한 두개계측학적 연구 (Craniometric studies on the skull of Korean native goat)

  • 이성준;이흥식
    • 대한수의학회지
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    • 제34권4호
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    • pp.705-714
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    • 1994
  • This study was carried out to identify the craniometric characteristics of the skull of Korean native goat. The results were as follows; The skull index, cranial index, facial index, right orbital index and left orbital index were $55.86{\pm}2.14$, $59.97{\pm}3.68$, $107.03{\pm}5.71$, $92.22{\pm}4.54$and $90.47{\pm}5.48$, respectively. The ratio of facial length to cranial length was 1:1.15 and the ratio of length of cranial base to palatal length was 1:1.35. The skull length was more correlated to the facial length than to the cranial length(p<0.01). The skull width was more correlated to the width between foramina supraorbitales than to the width between foramina infraorbitales. It also showed negative correlation to the medial width between bases of processus cornualis but positive correlation to the lateral width between bases of processus cornualis(p<0.01). The width between tips of both horns showed high positive correlation to the medial width between processus cornualis, but negative correlation to the lateral width(p<0.01).

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정모두부방사선선사진을 이용한 상악 제 1대구치간 폭경의 평가 (Evaluation of the maxillary intermolar width (U6-U6) on frontal cephalogram)

  • 박영국;정규림;이영준;이성희
    • 구강회복응용과학지
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    • 제16권1호
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    • pp.61-67
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    • 2000
  • It was the aim of present study to grope the relationship of the maxillary first molar width to the various transverse skeletal measurements in frontal headfilm, and to formulate the predictive equations of the maxillary intermolar width (U6-U6) from each of the variables. Frontal cephalograms of 17 males from 18 to 26 YO and 13 females from 17 to 25 YO who manifested balanced skeletal profiles, normal occlusion, and no history of orthodontic and prosthodontic treatment were employed as subjects. Nine transverse measurements were scrutinized with Pearson's correlation analysis, simple and stepwise multiple regression analysis in specific regards to the intermolar width of maxillary first molar. Statistical output demonstrated that there were intimate relationships within the various transverse skeletal measurements each other, and among the others, high correlation was found between facial width and maxillary first intermolar width. Regression analyses provided the reliable and clinically applicable predictive equations to set the ideal maxillary first intermolar width(U6-U6) from the given skeletal framework.

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오차범위 분석을 통한 고정길이 modified Booth 곱셈기의 최대오차 감소 (Maximum Error Reduction for Fixed-width Modified Booth Multipliers Based on Error Bound Analysis)

  • 조경주;정진균
    • 대한전자공학회논문지SD
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    • 제42권10호
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    • pp.29-34
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    • 2005
  • 최대 양자화 오차는 W 비트 입력으로부터 W 비트의 곱을 출력하는 고정길이 곱셈기의 성능에 많은 영향을 준다. 본 논문에서는 고정길이 modified Booth 곱셈기의 오차범위를 분석한 후 최대오차를 줄이기 위해 추가해야 하는 칼럼 수를 결정하는 방법을 제안한다. 또한, 오차범위 분석방법이 reduced-width 곱셈기 디자인 시에도 적용할 수 있음을 보인다. 시뮬레이션을 통해 제안한 오차분석 방법이 고정길이 modified Booth 곱셈기의 실제 디자인에 유용하게 사용될 수 있음을 보인다.