• Title, Summary, Keyword: the Weight of Role

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Optimum Solutions of Minimum Error Entropy Algorithm (최소 오차 엔트로피 알고리듬의 최적해)

  • Kim, Namyong;Lee, Gyoo-yeong
    • Journal of Internet Computing and Services
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    • v.17 no.3
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    • pp.19-24
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    • 2016
  • The minimum error entropy (MEE) algorithm is known to be superior in impulsive noise environment. In this paper, the optimum solutions and properties of the MEE algorithm are studied in regard to the robustness against impulsive noise. From the analysis of the behavior of optimum weight and factors related with mitigation of influence from large errors, it is revealed that the magnitude controlled input entropy plays the main role of keeping optimum weight of MEE undisturbed from impulsive noise. In the simulation, the optimum weight of MEE is shown to be the same as that of MSE criterion.

Weight Reduction of Front Side Member with High Strength Steel (고장력강 적용을 통한 프런트 사이드 멤버의 경량화)

  • 이상곤;최창현;신철수
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • pp.1487-1490
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    • 2004
  • In this study, the crash analysis was carried out to evaluate the influence of steel sheet grade and thickness on weight reduction and crash characteristics for front side member which had an important role of absorbing the impact energy during front and side impact. In order to achieve the aim of this study the reverse engineering was applied to obtain 3D model of front side member from BIW for the FE simulation. In the result, the crashworthiness of front side member is considerably improved with steel sheet strength and thickness increase. Also, the weight reduction in automotive parts for the improvement of the fuel efficiency can be easily achieved with applying high strength steel without deterioration of crashworthiness.

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A Study on the Weight Reduction of the Steering Pump Bracket (스티어링 펌프 브라켓의 경량화에 관한 연구)

  • Kim, Wan-Du;Han, Seung-U
    • 연구논문집
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    • pp.13-20
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    • 1998
  • The power steering pump bracket for a passenger car which is mounted on the engine block plays a role to support the inertia forces of the pump and the reaction forces of the belt assembly. The existing bracket which is made of FCD material has some demerits such as heavy weight, lower productivity and lower reliability. Recently, AI alloy bracket has been investigated to overcome these demerits. In this study, Stress analysis and modal analysis for a existing FCD bracket and two type of AI alloy brackets were performed, and strength and natural frequency of them were estimated by using finite element method to accomplish the weight reduction. As a result, the modified shape of AI alloy bracket is proposed, and it has achieved the 45% weight reduction and the improvement of its strength and vibration characteristics.

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Shape Design for a Inline-Skate Frame (인 라인 스케이트 프레임의 형상 설계)

  • Kim S.C.;Jee H.S.
    • Korean Journal of Computational Design and Engineering
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    • v.10 no.1
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    • pp.17-26
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    • 2005
  • In-line skate generally consists of four major parts: boot, frame, bearing and wheel, and the most important part among those for necessary functionality is the frame. It is the most expensive, and it also makes a decisive role in practical race skating. The functional behavior of a frame is greatly affected by external dynamic forces as well as the static weight of a skater. We are proposing a new inline speed-skating frame design that has been improved in structural strength and weight for providing optimum speed in $20\sim40km$ marathon skating.

The Role of Gut Microbiota in Obesity and Utilization of Fermented Herbal Extracts (비만에서 장내 미생물 균총의 역할과 발효 한양의 활용)

  • Park, Jung-Hyun;Kim, Ho-Jun;Lee, Myeong-Jong
    • Journal of Korean Medicine for Obesity Research
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    • v.9 no.1
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    • pp.1-14
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    • 2009
  • Complex microbial communities play an important role in the human health and co-evolved with human in the form of symbiosis. Many literatures provide new evidences that the increased prevalence of obesity cannot be attributed solely to changes in the human genome, nutritional habits, or reduction of physical activity in our daily lives. The intestinal flora was recently proposed as an environmental factor responsible for the control of body weight and energy metabolism. A number of studies suggest that the modulation of gut microbiota affects host metabolism and has an impact on energy storage and demonstrated a role for the gut microbiota in weight gain, fat increase, and insulin resistance. Variations in microbiota composition are found in obese humans and mice and the microbiota from an obese mouse confers an obese phenotype when transferred to an axenic mouse. As well, the gut microbial flora plays a role in converting nutrients into calories. Specific strategies for modifying gut microbiota may be a useful means to treat or prevent obesity. Dietary modulations of gut microbiota with a view to increasing bifidobacteria have demonstrated to reduce endotoxemia and improve metabolic diseases such as obesity. The fermentation of medicinal herbs is intended to exert a favorable influence on digestability, bioavailability and pharmacological activity of herbal extract. Therefore we also expect that the fermented herbal extracts may open up a new area to treat obesity through modulating gut microbiota.

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Panax ginseng Extract as Protectant in Mercuric Chloride Induced Alterations in Protein Biochemistry in the Serum of Albino Rats

  • Mahour, K.;Saxena, Prabhu-N.;Kumar, Ashok
    • Journal of Ginseng Research
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    • v.30 no.3
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    • pp.106-111
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    • 2006
  • Adverse changes in individual's biochemistry under heavy metal stress are directly linked with its metabolic activity and health status. The present investigation highlights the differences in protecting role of Panax ginseng extract against mercuric chloride induced alterations in serum proteins. The assessment was based on dividing fifty albino rats into two sets, one for acute and the other for sub-acute study. All the sets had five groups with five albino rats in each i.e. control group, mercuric chloride treated group, Panax ginseng extract treated group, mercuric chloride followed by Panax ginseng extract treated group and Panax ginseng extract followed by mercuric chloride treated group. Mercuric chloride was given orally 0.926 mg/kg body weight for acute set and 0.044 mg/kg body weight for sub-acute set after LD50 (9.26 mg/kg body weight) determination by probitt analysis. 10 mg/kg body weight Panax ginseng extract was given in both acute and sub-acute sets after incorporating safety trials. The control group received tween-20 and distilled water only. The result exhibited significantly reduction (P<0.01) in serum protein, albumin and globulin following mercuric chloride intoxication whereas significant (P<0.01) enhancement in other groups with Panax ginseng extract as an ingredient confirming its protective role. All serum samples were also electrophoresed in 10% SDS with standard marker using discontinuous buffering system. Gradual disappearance of alpha-2 and beta-1 globulin bands from electrophoretic pattern was observed, while a single sharp band was observed between beta-2 and gamma globulin in serum protein pattern of acutely mercuric chloride treated rats. However, this band could not be visualized in sub-acute studies. Panax ginseng extract exhibits a better protection after acute intoxication.

Effects of a Massage Program on Growth of Premature Infants and on Confidence and Satisfaction in the Mothering Role (미숙아 마사지 교육 프로그램이 미숙아의 성장과 어머니 역할수행에 대한 자신감 및 만족도에 미치는 효과)

  • Kim, Ji-Young
    • Child Health Nursing Research
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    • v.11 no.4
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    • pp.381-389
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    • 2005
  • Purpose: This study was done to investigate the effects of a massage program on the growth of premature infants and on the mothers' confidence and satisfaction in the mothering role. Methods: The participants were 29 mothers of premature infants hospitalized in a neonatal intensive care unit at CNU Hospital (14 in the massage program group and 15 in control group). Massage was done for 10-15 minutes, 2-3 times a day for 4 weeks. The data were using the SAS PC+ program. Result: Significant differences were found in the ratios of weight gain (Z=2.24, p=.013), grow in length (Z=2.50, p=.006) and increase in head circumference (Z=1.91, p=.028) between the massage program group and the control group. Confidence in the mothering role was significantly higher for mothers in the massage program group compared to those in the control group (Z=2.69, p=.004), but there was no significant difference in satisfaction with the mothering role between the two groups (Z=.88, p=.191). Conclusion: These results suggest that the massage program enhances growth of premature infants as well as enhancing the mother's confidence in her role as mother. Therefore, the massage program for premature infants can be use as an effective nursing intervention.

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Effects of Group Meridian Massage on Infants Growth and on Mother-Infant Interaction, Mother-Infant Attachment, and Mothering Role Satisfaction (집단 영아경락마사지가 영아의 성장, 어머니의 모아상호작용과 모아애착 및 역할만족도에 미치는 영향)

  • Cho, Kyoul-Ja;Lee, Sun-Nam;Lee, Myung-Hee;Ji, Eun-Sun
    • Child Health Nursing Research
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    • v.15 no.1
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    • pp.88-96
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    • 2009
  • Purpose: This study was done to investigate effects of Meridian massage on the growth of the infant and on mother-infant interaction, mother-infant attachment, and the mother's satisfaction with her mothering role. Method: The participants were 39 mothers of infants who were seen at one of two urban public health centers located in Yangju or Seoul. Data were collected from February 2008 to December 2008. Infants in the experimental group were given Meridian massage for 50 minutes (lecture 20 minutes, practice 15 minutes, preparation and arrangement 15 minutes) once a week for 6 weeks. Percentages, means with standard deviation, $X^2$-test, repeated measured ANOVA, and ANCOVA were used with the SPSS program to analyze the data. Results: Infants in the experimental group showed an increase in weight & height compared to those in the control group. Mother-infant interaction, mother-infant attachment, and satisfaction with mothering role were significantly higher in the experimental group than the control group. Conclusion: The above finding suggest that Meridian massage should be applied in clinical practice to improve growth of infants, interaction and attachment between infants and their mothers, and the mother's satisfaction with her mothering role.

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Approach Toward Integrated Curriculum for Dental Hygienist (치과위생사 통합교육과정을 위한 접근)

  • Hwang, Mi-Yeong
    • Journal of Korean society of Dental Hygiene
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    • v.3 no.1
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    • pp.59-72
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    • 2003
  • The purpose of this study was to examine what the role of denial hygienist was. The subjects were 751 dental hygienists from dental clinics, dental hospitals, general hospitals, public dental clinics and their branches throughout the nation. After a survey was conducted, the collected data were analyzed with SPSS WIN 10.0, and variance analysis and post-analysis were implemented. And Forgarty's 8th integrated model, out of 10 ones, was selected to delve into the practical role of dental hygienist in detail. The findings of this study were as follows: 1. The three age groups had a significantly different opinion on the significance of individual subjects. The dental hygienists of thirty six and over found the basic and preventive public dental care courses most important, and the 31~35 age group placed most stock in education and research. Overall, the post-analysis results showed that prevention and clinical courses were considered most vital, followed by education and fundamental courses. 2. There was a significant gap between four groups from the different work places in their view of the weight of the individual subjects. According to the post-analysis, the dental hygienists from the general hospitals, public dental clinics and their branches gave more weight to fundamental, education and research areas. Those who were with the dental clinics, dental hospitals and general hospitals put higher value on clinical course than the dental hygienists from the public dental clinics and their branches. 3. Two groups with a different career also had a different outlook on the importance of the individual subjects. The post-analysis results illustrated that the dental hygienists who had worked for three years or more put higher stress on the fundamental course than those with a less career, and the dental hygienists with a five-year or higher career attached more importance to the education and research field than those with a smaller career. 4. There was a significant difference between the three age groups in their clinical role. The post-analysis results indicated thai the younger dental hygienists were more of assistants than of professionals, as they chiefly took X-ray photograph, handled treatment materials or performed treatment-related works. Overall, handling treatment materials was most common. 5. The three groups from the different work places significantly varied in their clinical role. According to the post-analysis, those from the dental clinics and dental hospitals took more x-ray photographs, handled more treatment materials and performed more relevant works, compared to those from the general hospitals, public dental clinics and their branches. 6. The two groups with a different career differed significantly in their clinical role. The post-analysis results suggested that the dental hygienists with a less career played an assistant role more, which handled treatment materials or carried out other relevant works. 7. The fundamental courses (I) and (II), preventive class (I) and (II) and its practice course were regarded as integrated subjects that they should take 10 offer preventive treatment, which was one of the dental hygienist missions. What's needed to act as dental-care educators was the basic courses (I) and (II), dental hygiene education and its practice. Finally, integrated clinical courses (I) and (II) and clinical practice were viewed as necessary for their role performance as dental treatment collaborators.

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Effects of a Weight Loss Program on Body Composition and Resting Energy Expenditure according to UCP 2 Genotype in Overweight Subjects

  • Shin, Ho-Jeung;Cho, Mi-Ran;Lee, Hye-Ok;Kim, Young-Sul;Ryowon Choue
    • Nutritional Sciences
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    • v.5 no.4
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    • pp.221-227
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    • 2002
  • The objective of this study was to examine the effects of a weight loss program on the degree of obesity and levels of resting energy expenditure (REE) in overweight subjects according to their mitochondrial uncoupling protein 2 (UCP 2) genotype. Twenty-three subjects with a body mass index (BMI) greater than 27 were recruited from the Obesity Clinic of the Kyung-Hee University Hospital during the period of December 2000 - August 2001. The subjects were genotyped for the exon 8 allele; 15 subjects were found to be of del/del genotype, 8 were del/ins, and none were of ins/ins genotype. No significant association was found between the different UCP 2 genotypes and the initial levels of weight, fat mass (FM), lean body mess (LBM), BMI, REE, and REE/LBM ratio. After 12 weeks of a weight loss program, body weight and FM were significantly decreased, while LBM, total body water (TBW), and REE were not changed, irrespective of UCP 2 genotype. Initial fasting plasma levels of albumin, glucose, triglyceride, lipoprotein cholesterol, insulin, free triiodo-thyronine (T3), free fatty acid (FFA), and leptin were not different according to the UCP 2 genotype; furthermore, these blood parameters were not changed after the 12-week weight loss program. However, plasma levels of leptin decreased in both the del/del and ins/del genotypes, from 18.7 ng/ml to 13.4 ng/ml (p<.05), and from 18.1 ng/ml to 13.9 ng/ml (p<.05), respectively, after the weight loss program. In conclusion, this study found no significant association between the del/del or del/ins UCP 2 genotypes and differing levels of REE or differing degrees of obesity, either before or after a weight loss program. This study provided evidence that a well- managed weight loss program could maintain levels of REE, which plays an important role in the maintenance of energy balance.