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Computing input energy response of MDOF systems to actual ground motions based on modal contributions

  • Ucar, Taner
    • Earthquakes and Structures
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    • v.18 no.2
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    • pp.263-273
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    • 2020
  • The use of energy concepts in seismic analysis and design of structures requires the understanding of the input energy response of multi-degree-of-freedom (MDOF) systems subjected to strong ground motions. For design purposes and non-time consuming analysis, however, it would be beneficial to associate the input energy response of MDOF systems with those of single-degree-of-freedom (SDOF) systems. In this paper, the theoretical formulation of energy input to MDOF systems is developed on the basis that only a particular portion of the total mass distributed among floor levels is effective in the nth-mode response. The input energy response histories of several reinforced concrete frames subjected to a set of eleven horizontal acceleration histories selected from actual recorded events and scaled in time domain are obtained. The contribution of the fundamental mode to the total input energy response of MDOF frames is demonstrated both graphically and numerically. The input energy of the fundamental mode is found to be a good indicator of the total energy input to two-dimensional regular MDOF structures. The numerical results computed by the proposed formulation are verified with relative input energy time histories directly computed from linear time history analysis. Finally, the elastic input energies are compared with those computed from time history analysis of nonlinear MDOF systems.

Hematologic and Coagulation Changes in Hypothermic Dogs (신체냉각이 혈액세포성분 및 응혈기전에 미치는 영향에 관한 실험적 연구)

  • 최대영
    • Journal of Chest Surgery
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    • v.2 no.1
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    • pp.105-114
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    • 1969
  • This experiment was carried out to study the responses of cellular component of blood and bone marrow to cold and also the changes of coagulation during cooling. Forty-two mongrel dogs were subjected to hypothermia by ice-water surface cooling technique. Lowest body temperature ranged from 21-23 degree. Dogs were divided into 3 groups,Group I, 12 dogs: pentothal anesthesia for 3 hours, Group II, 20 dogs;hypothermic group and Group III,10 dogs;postsplenectomy hypothermic group. Results were summarized as follows: 1. Hemoglobin, hematocrit and red blood cell count significantly increased when animals were cooled, and increase was noted in similar magnitude among the animals of Group I. 2. White blood cell count extremely decreased after cooling and effect of splenectomy on white blood cell count was not apparent. No significant changes were seen among Group I. 3. Differential count of white blood cell when cooled showed relative increase of polymorphonuclear neutrophil and decrease of lymphocyte. 4. There was marked decrease of platelets when body temperature reached to 21-23degree and essentially. no changes was noted in Group I. 5. Clotting time, bleeding time, plasma prothrombin time, recalcification time, and fibrinolysis showed no significant changes when dogs were cooled. Clot retration and prothrombin consumption during hypothermia appeared to be poor. In Group II, bleeding time decreased after splenctomy and when body temperature was lowered, plasma prothrombin time, clot retraction, and prothrombin consumption decreased. Decreased bleeding time and poor clot retraction were noted in Group I. 6. It was found that megacaryocyte count decreased even though platelet count of peripheral blood markedly diminsished when animals were cooled. There was some tendency of erythroid hyperplasia noted during hypothermia.

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The Level of Transformational Leadership in Family and the Job Satisfaction: - Focusing on the Workers in Seoul - (가정 내 변혁적 리더십 수준과 직업만족도 - 서울시 직장기혼남녀를 대상으로 -)

  • Park, Mee-Sok;Kim, Ji-Eun;Kim, Kyoung-A
    • Journal of Family Resource Management and Policy Review
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    • v.11 no.1
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    • pp.21-36
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    • 2007
  • The main purpose of the current research was to induce the importance of manners through the relationship between the level of transformational leadership in the family and the degree of job satisfaction in workers. It also examined positive variants that can enhance the degree of job satisfaction. The data from 250 questionnaires were used for the final analysis. The main results of the present study are as follows: First, the level of transformational leadership in the family tended to be relatively low, although it was good at the intellectual stimulus leadership among the sub-dimension of the "Family Multifactor Leadership Questionnaire." Moreover, communication, status, and education level turned out to be most influential background variables. Secondly, the score for job satisfaction that is recognized by the workers appeared to be less than average. It seemed that relative comparison in the level of life, communication and education level were the most influential variables. Indeed, the result of stepwise regression analysis showed that transformational leadership made a comparatively high contribution to job satisfaction. Therefore, it is important to keep in mind that a worker's leadership development is a main source of maintaining job satisfaction.

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One Case of BRCA2 Germline Mutation Ovarian Cancer Mother and Carrier Daughter found by Genetic Counseling

  • Lee, Eun Jung;Jeong, Hee Jeong;Kim, Min Kyu
    • Journal of Genetic Medicine
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    • v.10 no.2
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    • pp.124-127
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    • 2013
  • Among cause of carcinogenesis, heredity is believed to take about 10 percent in ovarian cancer. BRCA1 or BRCA2 account for largest portion of Hereditary Breast and Ovary Cancer (HBOC). Frequency of BRCA1/2 germ line mutations varies according to region and ethnicity from 1.1-39.7 percent. The identification of ovarian cancers with a BRCA mutation is will be more and important due to the possibility to offer a genetic counseling and also due to potential beneficial treatment effects with a poly-ADP-ribose polymerase inhibitor in some individuals. We report the case of a 41 year old woman with a stage Ic mucinous ovarian adenocarcinoma and carrier daughter found on family genetic counseling. We indentified other family members with a history of breast cancer of 1st degree and pancreatic cancer of 2nd degree relative. After a screening with immunohistochemistry, the absence of nuclear expression for BRCA1 and BRCA2 was revealed. The gene sequencing confirmed heterozygous mutations of BRCA2 gene. The daughter of the case subject consented for a test. This test was shown the daughter is positive for BRCA2 mutation. Regular surveillance, chemoprophylaxis with oral contraceptive and prophylactic surgery after childbearing were offered to her.

A Study on the Color Collection of Real Image Using the Triplicated Piecewise Bezier Cubic-Curve (3중첩 구간적 베지어 3차 곡선을 이용한 실사 영상의 컬러 보정에 관한 연구)

  • 권희용;이지영
    • The Journal of Information Technology
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    • v.5 no.1
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    • pp.99-111
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    • 2002
  • Due to non-linear characteristics of color spaces, color corrections using linear conversions for real image near color reappearance causes color distortions. In order to overcome this problem, the Bezier Curve, constructed with a set of arbitrary plane in the linear theory, has been used. However, the Bezier Curve increases in proportion to the number of data points, resulting in higher computational complexities. This paper attempts to use a Triplicated Piecewise Bezier Cubic-Curve (TPBC-Curve) of which the degree is cubic on the whole interval while keeping the characteristics of Bezier Curves. By Comparing the TPBC-Curve with Bezier Curve of 20 degree, the paper not only reduces the distortion during color correction but also lessens the relative increase of workload that is caused by the color correction in a small zone.

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Breast Cancer Risk Assessment Using the Gail Model: a Turkish Study

  • Erbil, Nulufer;Dundar, Nursel;Inan, Cigdem;Bolukbas, Nurgul
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.1
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    • pp.303-306
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    • 2015
  • Purpose: This study was conducted to determine risk of developing of breast cancer among Turkish women. Materials and Methods: Using a descriptive and cross-sectional approach, data were collected from 231 women. Breast cancer risk was calculated using the National Cancer Institute's on-line verson of called as the Breast Cancer Risk Assessment Tool or the Gail Risk Assesment Tool. Results: The average age of women was $45.0{\pm}8.06$ years. It was revealed that 6.1% of participants reported having first degree relatives who had had breast cancer, with only four women having more than one first-degree relative affected (1.7%). The mean five-year breast cancer risk for all women was $0.88{\pm}0.91%$, and 7.4% of women had a five-year breast cancer risk >1.66% in this study. Mean lifetime breast cancer risk up to age 90 years was $9.3{\pm}5.2%$. Conclusions: The breast cancer risk assessment tool can help in the clinical management of patient seeking advice concerning screening and prevention. Healthcare providers in Turkey can use this approach to estimate an individual's probability of developing breast cancer.

A Study on Intimacy for Animation Character by the Intimacy Process -Focus on the Sternberg's Triangular Theory of Love (애니메이션 캐릭터에서 친화작용에 의한 친밀성 연구 -스턴버그의 사랑의 삼각형 이론을 중심으로)

  • Kim, Myeong Sam
    • Journal of Korea Multimedia Society
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    • v.18 no.7
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    • pp.895-900
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    • 2015
  • This study is to identify the elements, the types and the degrees of intimacy for animation character by the intimacy process through viewer. Firstly it is identified the element of intimacy by 1)Viewing, 2)Purchasing, and 3)Visiting. And secondly utilizing the psychological theory that is the Sternberg's triangular theory of love and then classifying the types and the degrees with the love to animation character in order to establishing the intimacy process. Finally it is considered mainly the type and the degree of intimacy by concept of completion and existence, the elements of intimacy are applied to 8 types of Sternberg's triangular theory of love. Those 8 types were compounded by those three elements of love. The results of study said that type 1.2.3 are uncompleted and low of the intimacy level, and type 4.5.6 are also uncompleted and average of the intimacy level, type 7 is completed and high of the intimacy level, and finally type 8 is nothing and no level. And the degree of intimacy is to be revealed by the relative comparison. It was concluded that the three elements have to be equally effects to animation character for establishing the high level of intimacy.

Changes in the Pectic Substance during Maturity of Apple (사과의 성숙에 따른 Pectin질의 변화)

  • Kim, Yeung-Ji;Kim, Chang-Sik
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.17 no.1
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    • pp.63-68
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    • 1988
  • The changes of methoxy content. compositional sugars. degree of esterification (DE) and pectic substances such as LMP (low methoxy pectin), HMP (high methoxy pectin) IAP (ionically associated pectin) and CBP (covalently bounded pectin) of Fuji apple were investigated during maturity. The contents of LMP+HMP and IAP+CBP in alcohol insoluble solid(AIS) were 70% and 20%. respectively. These pectic substances were increased slightly during maturity. The reductions of hexose and uronic acid were Iron 20-50% and from 2-4%, respectively, but the inclosed of pentose was from 1-9% in LMP, HMP, IAP and CBP during maturity of Fuji apple. The galactose was decreased significantly among hexose. Whereas the relative ratio of uronic acid in HMP and CBP was increased.

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A Study on Comparison of Generalized Kappa Statistics in Agreement Analysis

  • Kim, Min-Seon;Song, Ki-Jun;Nam, Chung-Mo;Jung, In-Kyung
    • The Korean Journal of Applied Statistics
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    • v.25 no.5
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    • pp.719-731
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    • 2012
  • Agreement analysis is conducted to assess reliability among rating results performed repeatedly on the same subjects by one or more raters. The kappa statistic is commonly used when rating scales are categorical. The simple and weighted kappa statistics are used to measure the degree of agreement between two raters, and the generalized kappa statistics to measure the degree of agreement among more than two raters. In this paper, we compare the performance of four different generalized kappa statistics proposed by Fleiss (1971), Conger (1980), Randolph (2005), and Gwet (2008a). We also examine how sensitive each of four generalized kappa statistics can be to the marginal probability distribution as to whether marginal balancedness and/or homogeneity hold or not. The performance of the four methods is compared in terms of the relative bias and coverage rate through simulation studies in various scenarios with different numbers of raters, subjects, and categories. A real data example is also presented to illustrate the four methods.

Two cases of Familial Juvenile Hyperuricemic Nephropathy (Familial Juvenile Hyperuricemic Nephropathy 2례)

  • Park Jin-Ho;Choi Bo-Hwa;Lee So-Young;Yoo Eun-Sil;Park Young-Seo
    • Childhood Kidney Diseases
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    • v.1 no.2
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    • pp.183-188
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    • 1997
  • Familial juvenile hyperuricemic nephropathy is an autosomal dominant disease characterized by progressive renal disease and hyperuricemia or gout, affecting young people of either sex equally. There are two biochemical markers of this disorder. The first is hyperuricemia disproportionate to the degree of renal dysfunction; the second is a grossly reduced clearance of uric acid relative to creatinine, dispropotionate to age, sex and degree of renal failure. We experienced 2 family members with hyperuricemia. One family member, a 13-year-old girl who had suffered from tophaceous gout and chronic renal failure. Her younger brother also had hyperuricemia and moderately reduced renal function. Their urinary excretion fractions of uric acid($FE_{uric\;acid}$) were reduced and renal biopsy specimens showed interstitial fibrosis with tubular atrophy and interstitial urate crystal deposition. We have treated these two patients with allopurinol but we have done renal transplantation because she progressed to end stage renal disease at 16 year old age.

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