• 제목/요약/키워드: standardized experimental method

검색결과 102건 처리시간 0.027초

시각주의 탐색 시스템을 위한 새로운 성능 평가 기법 (A New Performance Evaluation Method for Visual Attention System)

  • 최경주
    • 한국IT서비스학회지
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    • 제16권1호
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    • pp.55-72
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    • 2017
  • Many of the studies of visual attention that are currently underway are seeking ways to make application systems that can be used in practice, and obtained good results using not only simulated images but also real-world images. However, despite that previous studies of selective visual attention are models intended to implement the human vision, few experiments verified the models with actual humans and there is no standardized data nor standardized experimental method for actual images. Therefore, in this paper, we propose a new performance evaluation techniques necessary for evaluation of visual attention systems. We developed an evaluation method for evaluating the performance of the visual attention system through comparison with the results of the human experiments on visual attention. Human experiments on visual attention is an experiments where human beings are instinctively aware of the unconscious when images are given to humans. So it can be useful for evaluating performance of the bottom-up attention system. Also we propose a new selective attention system that guides the user to effectively detect ROI regions by using spatial and temporal features adaptively selected according to the input image. We evaluated the performance of proposed visual attention system through the developed performance evaluation method, and we could confirm that the results of the visual attention system are similar to those of the human visual attention.

Standardized Total Tract Digestibility of Phosphorus in Copra Expellers, Palm Kernel Expellers, and Cassava Root Fed to Growing Pigs

  • So, A.R.;Shin, S.Y.;Kim, B.G.
    • Asian-Australasian Journal of Animal Sciences
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    • 제26권11호
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    • pp.1609-1613
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    • 2013
  • An experiment was conducted to determine the apparent total tract digestibility (ATTD) and standardized total tract digestibility (STTD) of phosphorus (P) in copra expellers (CE), palm kernel expellers (PKE), and cassava root (CR). Eight barrows (initial BW of 40.0 kg, SD = 4.5) were individually housed in metabolism crates. A replicated $4{\times}3$ incomplete Latin square design was employed involving 4 dietary treatments, 3 periods, and 8 animals. Three experimental diets contained 40% CE, PKE or CR as the only source of P. A P-free diet mainly based on corn starch, sucrose, and gelatin was also prepared to estimate the basal endogenous loss of P. The marker-to-marker method was used for fecal collection. Values for the ATTD of P in the CE and PKE were greater than in the CR (46.0 and 39.7 vs -14.0%; p<0.05). However, the STTD of P did not differ greatly among the test ingredients (56.5, 49.0, and 43.2% in the CE, PKE, and CR, respectively). In conclusion, the ATTD of P values in CE and PKE were greater than that in CR, but the STTD of P did not differ greatly among CE, PKE, and CR.

다층 인슐레이션의 차음성능에 대한 실험적 연구 (Experimental Research for Air-borne Noise Reduction of a Multi-layered Insulation)

  • 고강호;김영호;국형석
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2001년도 춘계학술대회논문집
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    • pp.1185-1191
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    • 2001
  • This paper discusses an experimental method for measuring the insertion loss (IL) performance of multi-layered insulations that are used in vehicles. Instead of two adjacent reverberation chambers which are generally used to measure the transmission loss (TL) of the large sound isolation materials, air-borne sound insulation tester was utilized to determine the IL and articulation index (AI) of standardized insulation materials. In comparison to reverberation chamber method, air-borne sound insulation tester method is more space-saving, more time-saving and more simple to the automotive acoustics. From the empirical results, it is found that the performances of insulation materials are closely connected with density of polyurethane foam, thickness of heavy layer, thickness of polyurethane foam, and application ratio to panel area.

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한국음식의 조리법 표준화를 위한 연구(III) -비빔밥류- (Standardization of the Preparation Methods of Korean Foods (III) - For the focus on Pibimbab (Mixed Rice) -)

  • 계승희;문현경;염초애;송태희;이성희
    • 한국식품조리과학회지
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    • 제11권5호
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    • pp.557-564
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    • 1995
  • This study was attempted to standardize preparation methods of Korean foods; Pibimbab (mixed rice) and Kongnamul Pibimbab (sprout mixed rice with soybean). We followed cooking method by using cookbooks, food service operation recipes , materials distributed by commercial food restaurants from their own experimental kitchens, and home recipes. Before those recipes were standardized, we thoroughly analyzed and modified. The total yield and portions were determined together with weights and procedures. And we evaluated food made by standardized recipes for acceptability by taste panels from Sookmyung Women's University. It concluded that yield volume for Pibimbab and Kongnamul Pibimbab after cooking for 10 persons was 6.5 kg, optimum service temperature was 7$0^{\circ}C$, preparation time was 6 hours, service volumes by one person was 650 g. This presentation for above on food materials and material weights, preparation methodsas well as cautions and references are attached in this research paper.

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한국인 식단작성을 위한 식품구성 및 그 영양적 배합에 관한 연구 (A study on the Composition of food and it's nutritional mix for preparation of Korean Menus)

  • 이기열
    • 대한가정학회지
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    • 제17권2호
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    • pp.10-29
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    • 1979
  • Nowadays various organizations, such as hospitals, workers, students and families are requesting a model sample of standardized Korean meal plan to meet their nutritional requirement with daily food intake. Practical application of nutritional requirement in Korean meal is not yet established. This mainly comes form the lack of the research works on experimental cookery for the right amount of recipes of Korean meal , and no effect was ever paid for this angle by many specialist. Therefore, it is urgent to research and construct the standardized meal plan for Korean people. Contents of the present research are as follows ; 1) Standardization of recipes and the amounts : Various kinds of daily foods were selected for the purpose of recipes. The standardization of the recipes and the right amount were continuously attempted. 2) Research on the construction of nutritional meal plan : The method of constructing harmonious meal plan based upon the requirement, were studied. And the meal plans were constructed according to the different units of ages. Special meal plans were also constructed for the pregnant women and lactating women. 3) Evaluation for the nutritional adequacy were followed after the setting the various recipes.

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빙-콘크리트 마찰 특성 평가를 위한 실험적 기초 연구 (Basic Experimental Study for Ice-Concrete Friction Behavior)

  • 도영준;김유일
    • 대한조선학회논문집
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    • 제57권6호
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    • pp.365-372
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    • 2020
  • Ice induced abrasion is known as a critical problem in concrete gravity based offshore structures, which are mainly used in the arctic regions. Although many researches on ice abrasion have been conducted for the last several decades, there still are some difficulties in designing concrete gravity based offshore structures against abrasion problem because there is no standardized method yet due to the uncertain physics involved in. This paper presents an experimental study for the evaluation of concrete abrasion characteristics due to ice friction on concrete surface. For the test, a testing machine capable of abrasion and friction was designed and produced, and standardized procedure was proposed to produce ice specimen used for abrasion test. For the experiment, compressive strength of the ice specimen were explored through a static compression test. Then the friction test between ice specimen and concrete surface was performed and friction coefficients were derived using measured vertical and horizontal forces. Dependency of friction coefficients on some test parameters were studied and discussed as well.

표준화환자를 활용한 실습교육이 피하주사 간호수행능력, 자기주도학습 준비도 및 문제해결능력에 미치는 효과 (Effects of Teaching Method using Standardized Patients on Nursing Competence in Subcutaneous Injection, Self-Directed Learning Readiness, and Problem Solving Ability)

  • 엄미란;김현숙;김은경;성가연
    • 대한간호학회지
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    • 제40권2호
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    • pp.151-160
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    • 2010
  • Purpose: The purpose of this study was to evaluate the effects of teaching method using Standardized Patients (SPs) on nursing competence, self-directed learning readiness, and problem solving ability-focusing on subcutaneous insulin injection. Methods: This research was a nonequivalent control group non-synchronized post-test design. The subjects consisted of 62 junior nursing students at E University. Scenarios to train SPs and checklists to evaluate the students' competence were developed by our research team. The experimental group (n=31) participated in the teaching class using SPs. The control group (n=31) received traditional practice education. The collected data were analyzed with descriptive analysis, $\chi^2$/Fisher's exact test, t-test, Pearson's correlation coefficient, and Cronbach's $\alpha$ using SPSS WIN 14.0 Program. Results: The mean scores of competence, self-directed learning readiness, and problem solving were significantly higher in the experimental group than the control group. Conclusion: As confirmed by this research findings, the teaching method using SPs was more effective than the traditional method to improve junior nursing students' competence, self-directed learning readiness, and problem solving. Therefore, It is necessary to develop a various of scenarios and to testify their effectiveness.

표준화 환자를 활용한 산후출혈 산모 간호 시뮬레이션 실습이 간호학생의 임상수행능력과 비판적 사고 성향에 미치는 효과 (Effects of Simulation-based Practice using Standardized Patients for the Care of Women with Postpartum Hemorrhage on Nursing Student's Clinical Performance Competence and Critical thinking Deposition)

  • 김선희
    • 부모자녀건강학회지
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    • 제15권2호
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    • pp.71-79
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    • 2012
  • Purpose: This study was conducted to examine the effects of simulation-based practice using standardized patients for the care of woman with postpartum hemorrhage as related to clinical performance competence and critical thinking deposition of nursing students. Methods: A nonequivalent control group pre-post test experimental design was used. Fifty four third year students were recruited, 29 students for the experimental group and 25 students for the control group. The simulation-based practice about nursing care related to postpartum hemorrhage included skill training, team-based practice, and debriefing. It was implemented with the experimental group for about 30 minutes in October 6, 2011. Data were analyzed using frequency, ratio, chi-square, Fisher's exact probability, and t-test using the SPSS/WIN program. Results: The experimental group who had the simulation-based practice showed significantly higher knowledge and skills of clinical performance competence than the control group (t=2.19, p=.003). But the experimental group who had the simulation-based practice did not show significantly higher critical thinking deposition than the control group (t=-0.32, p=.748). Conclusion: The results indicate that a simulation-based practice is an effective teaching method to improve knowledge and skills for clinical performance competence of nursing students. Further study is needed to identify the effect of a simulation-based practice on nursing attitudes.

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표준화 환자를 활용한 모성간호학 실습 학습방법 효과 분석 (Evaluation of the Standardized Patients(SP) Managed Instruction for a Clinical Maternity Nursing Course)

  • 이성은
    • 한국간호교육학회지
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    • 제17권1호
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    • pp.14-24
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    • 2011
  • Purpose: The purpose of this study was to investigate the learning effect of a standardized patient managed instruction program for a clinical maternity nursing course. Methods: The SP managed instruction was made for clinical cases in intrapartum and postpartum nursing care. The SP managed instruction was evaluated by using a quasi-experimental, nonequivalent control group post-test design with separate classes of students attending clinical maternity nursing classes at a nursing school in Incheon. Control groups were taught by traditional lecture/model method and experimental groups were taught by SP managed instruction. Data was collected from September 2009 to February 2010. Results: 1. There was no significant difference between the experimental group and control group in identifying relevant data (z=-1.418, p=.156) and necessary nursing skills performance (z=-.643, p=.520) for intrapartum nursing care. In addition, there was no significant difference between the two groups in identifying relevant data (z=-.264, p=.782) and necessary nursing skill (z=-.342, p=.732) for postpartum nursing care. 2. In clinical nursing skill performances the total score was statistically significantly higher in the experimental group than the control group (intrapartum care z=-4.181, p=.000, postpartum care z=-4.279, p=.000). 3. There was a statistically significant difference between the two groups (intrapartum care z=-3.731, p=.000, postpartum care z=-4.066, p=.000). Conclusion: In conclusion, the SP methodis effective in teaching clinical maternity nursing for student nurses and it is necessary to develop SP instruction courses for many areas in the clinical nursing education field.

Experimental Investigation of Impact-Echo Method for Concrete Slab Thickness Measurement

  • Popovics John S.;Cetrangolo Gonzalo P.;Jackson Nicole D.
    • 비파괴검사학회지
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    • 제26권6호
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    • pp.427-439
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    • 2006
  • Accurate estimates of in place thickness of early age (3 to 28 days after casting) concrete pavements are needed, where a thickness accuracy of ${\pm}6mm$ is desired. The impact-echo method is a standardized non-destructive technique that has been applied for this task. However, the ability of impact-echo to achieve this precision goal is affected by Vp (measured) and ${\beta}$ (assumed) values that are applied in the computation. A deeper understanding of the effects of these parameters on the accuracy of impact-echo should allow the technique to be improved to meet the desired accuracy goal. In this paper, the results of experimental tests carried out on a range of concrete slabs are reported. Impact-echo thickness estimation errors caused by material property gradients and sensor type are identified. Correction factors to the standard analysis method are proposed to correct the identified errors and to increase the accuracy of the standard method. Results show that improved accuracy can be obtained in the field by applying these recommendations with the standard impact-echo method.