• 제목/요약/키워드: different types

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The effect of base isolation and tuned mass dampers on the seismic response of RC high-rise buildings considering soil-structure interaction

  • Kontoni, Denise-Penelope N.;Farghaly, Ahmed Abdelraheem
    • Earthquakes and Structures
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    • 제17권4호
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    • pp.425-434
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    • 2019
  • The most effective passive vibration control and seismic resistance options in a reinforced concrete (RC) high-rise building (HRB) are the base isolation and the tuned mass damper (TMD) system. Many options, which may be suitable or not for different soil types, with different types of bearing systems, like rubber isolator, friction pendulum isolator and tension/compression isolator, are investigated to resist the base straining actions under five different earthquakes. TMD resists the seismic response, as a control system, by reducing top displacement or the total movement of the structure. Base isolation and TMDs work under seismic load in a different way, so the combination between base isolation and TMDs will reduce the harmful effect of the earthquakes in an effective and systematic way. In this paper, a comprehensive study of the combination of TMDs with three different base-isolator types for three different soil types and under five different earthquakes is conducted. The seismic response results under five different earthquakes of the studied nine RC HRB models (depicted by the top displacement, base shear force and base bending moment) are compared to show the most suitable hybrid passive vibration control system for three different soil types.

실내공간의 이미지 평가에 나타난 주시시간 특성에 관한 연구 - 실내공간 유형별 정보획득을 중심으로 - (A Study on Characteristics of Observation Time Found in Image Evaluation of Interior Space - Focusing on Acquisition of Spatial Information by Interior Space Types -)

  • 최주영;김주현;김종하;이정호
    • 한국실내디자인학회논문집
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    • 제20권5호
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    • pp.96-104
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    • 2011
  • Assuming that different spatial types involves the change of observation time to acquire the spatial information, this study intended to analyze the observation time by interior space types and derive the proper time for spatial evaluation. Coming to the study method, in order to analyze the characteristics of observation time in the image evaluation of interior space by types, it looked into the observation time chosen by the testees during evaluation. The findings of this study are as follows: First, the observation time differed by genders and spatial types: men's average time was longest for modern (93.3 sec.) and natural (89.4 sec.) spaces; women's average time was longest for classic space (110.7 sec.), which was the shortest for men. Second, the intensity of observation time zone differed by spatial types: this finding can imply that different design types require different establishment of observation time for evaluation even if the spatial elements are the same. Third, analyzing the distribution of time zones chosen by most testees showed that men's observation time zones were more intensely distributed than those of women. Fourthly, the observation lime for general space could be derived from the gender-based comparison that excluded the difference by types, but considering that different design types lead to different observation time, it could be seen as proper for evaluation of interior space to establish the difference of observation time by spatial types. Finally, Analysis showed the highest preference to the time '(3)'. However, obtaining information presented is the most highly effective time is '(6). Thus, the preferred time zone is different and effective, according to the results of the analysis.

Comparison of Milk Yield and Animal Health in Turkish Farms with Differing Stall Types and Resting Surfaces

  • Kara, Nurcan Karslioglu;Galic, Askin;Koyuncu, Mehmet
    • Asian-Australasian Journal of Animal Sciences
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    • 제28권2호
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    • pp.268-272
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    • 2015
  • The current study was carried out to determine the influence of different resting surfaces and stall types on milk yield and animal health. Study was carried out in Bursa that is one of the most important cities of Turkey in terms of dairy production. Effects of resting surfaces and stall types on milk yield were found to be important. Also influence of different resting surfaces and stall types on lactation length was examined and found that rubber mats were different from the two other options. Relationships between different resting surfaces or stall types and health problems were examined and connection between stall type and repeat breeding (RB), dystocia, retained placenta and a connection between resting surface types and RB and clinical mastitis were found to be important. Considering their economic reflections, it can be said that results are quite important to the Turkish dairy industry.

Comparison of shear bond strengths of different types of denture teeth to different denture base resins

  • Prpic, Vladimir;Schauperl, Zdravko;Glavina, Domagoj;Catic, Amir;Cimic, Samir
    • The Journal of Advanced Prosthodontics
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    • 제12권6호
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    • pp.376-382
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    • 2020
  • PURPOSE. To determine the shear bond strengths of different denture base resins to different types of prefabricated teeth (acrylic, nanohybrid composite, and cross-linked) and denture teeth produced by computer-aided design/computer-aided manufacturing (CAD/CAM) technology. MATERIALS AND METHODS. Prefabricated teeth and CAD/CAM (milled) denture teeth were divided into 10 groups and bonded to different denture base materials. Groups 1-3 comprised of different types of prefabricated teeth and cold-polymerized denture base resin; groups 4-6 comprised of different types of prefabricated teeth and heat-polymerized denture base resin; groups 7-9 comprised of different types of prefabricated teeth and CAD/CAM (milled) denture base resin; and group 10 comprised of milled denture teeth produced by CAD/CAM technology and CAD/CAM (milled) denture base resin. A universal testing machine was used to evaluate the shear bond strength for all specimens. One-way ANOVA and Tukey post-hoc test were used for analyzing the data (α=.05). RESULTS. The shear bond strengths of different groups ranged from 3.37 ± 2.14 MPa to 18.10 ± 2.68 MPa. Statistical analysis showed significant differences among the tested groups (P<.0001). Among different polymerization methods, the lowest values were determined in cold-polymerized resin.There was no significant difference between the shear bond strength values of heat-polymerized and CAD/CAM (milled) denture base resins. CONCLUSION. Different combinations of materials for removable denture base and denture teeth can affect their bond strength. Cold-polymerized resin should be avoided for attaching prefabricated teeth to a denture base. CAD/CAM (milled) and heat-polymerized denture base resins bonded to different types of prefabricated teeth show similar shear bond strength values.

플레이트 형상에 따른 Headed Bars의 파괴거동에 관한 연구 (Fracture Behaviors of Headed Bars with Different Plate Types)

  • 박현규;윤영수;류영섭;이만섭
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2002년도 봄 학술발표회 논문집
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    • pp.935-940
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    • 2002
  • This paper presents the failure mode on Headed Bars and prediction of tensile capacity, which is governed by concrete cone failure. 17 different plate types, three different concrete strengths and three different welding types of specimens were simulated. Static tensile load was applied Headed Bars were manufactured in different areas, and their shape and thickness are based on ASTM 970-98. Calculation of embedment length in concrete is conducted based on CSA 23.3-94, and static tensile load was applied. Tested pullout capacities were compared to the values determined using current design methods such as ACI-349 and CCD method.

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고려불화를 통해 본 현실세계 인물의 복식에 표현된 선의 유형분류 (A Classification of the Types of Seon Expressed in Costume of Worldly Figures Illustrated in Koryo Buddhist Paintings)

  • 옥명선;박옥련;이주영
    • 복식
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    • 제57권1호
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    • pp.39-49
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    • 2007
  • The purpose of this study is to analyze characteristics of each of the types of Seon which was expressed in costume of worldly figures illustrated in Koryo Buddhist paintings. The types of 'Seon' are largely classified into Standard and Application types. Among these types, standard type are reclassified into the types of same color and no pattern, different color and no pattern, same color and pattern and different color and pattern. And Application type is reclassified into the types of Buseon, wrinkle, feather and leaf, Regarding styles of Seon, most costumes for men and women used Seon of Standard style, especially that of different color and no pattern style. In addition, costumes for men more often used Seon of Standard style, especially that of different color and pattern style. While, costumes far women more often used Seon of application style, especially that of feather or wrinkle style. Seon was practically used to reinforce the edge of clothes, whether for men or women, and at the same time, and at the same time decorated the clothes brilliantly. In regard to aesthetic qualities of clothes in accordance with types of Seon, clothes having Seon of same color and no pattern type was natural and simple and different color and no pattern type, artificial and simple, same color and pattern type, natural and brilliant and different color and pattern type, artificial and brilliant. And costumes having Seon of Buseon type was decorative and simple, wrinkle type, sophisticated and dynamic, feather type, voluminous and dynamic and leaf type, brilliant and dynamic.

한국 제조기업의 유연성전략, 생산활동기법과 성과측정에 관한 연구 (A Study on Flexibility Strategy, Manufacturing Methods and Performance Measurement of Korean Manufacturing Companies)

  • 윤재홍;이근호
    • 경영과학
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    • 제16권1호
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    • pp.137-156
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    • 1999
  • Flexibility is a competitive weapon in the changing environment. In order to pursue the flexibility, Korean manufacturing companies must define the flexibility dimension clearly, build the appropriate manufacturing infrastructures and measure the right flexibility performance indicators. This paper found out as follows. First, Korean manufacturing companies' flexibility strategy groups were formed three types. They are flexibility superior group, middle flexibility group and flexibility inferior group. Second, when different types of flexibility strategy group measured their performances, the degree of importance of flexibility performance indicators were different among groups. Third, when different types of flexibility strategy group were pursued, the different manufacturing methods such as product/process design technology, analysis technology, production system management technology and non technological factors were used. Lastly, when different types of flexibility strategy group were pursued, the actual flexibility performances were different among groups.

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Influence of trees and associated variables on soil organic carbon: a review

  • Devi, Angom Sarjubala
    • Journal of Ecology and Environment
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    • 제45권1호
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    • pp.40-53
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    • 2021
  • The level of soil organic carbon (SOC) fluctuates in different types of forest stands: this variation can be attributed to differences in tree species, and the variables associated with soil, climate, and topographical features. The present review evaluates the level of SOC in different types of forest stands to determine the factors responsible for the observed variation. Mixed stands have the highest amount of SOC, while coniferous (both deciduous-coniferous and evergreen-coniferous) stands have greater SOC concentrations than deciduous (broadleaved) and evergreen (broadleaved) tree stands. There was a significant negative correlation between SOC and mean annual temperature (MAT) and sand composition, in all types of forest stands. In contrast, the silt fraction has a positive correlation with SOC, in all types of tree stands. Variation in SOC under different types of forest stands in different landscapes can be due to differences in MAT, and the sand and silt fraction of soil apart from the type of forests.

Rapid Nondestructive Prediction of Multiple Quality Attributes for Different Commercial Meat Cut Types Using Optical System

  • An, Jiangying;Li, Yanlei;Zhang, Chunzhi;Zhang, Dequan
    • 한국축산식품학회지
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    • 제42권4호
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    • pp.655-671
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    • 2022
  • There are differences of spectral characteristics between different types of meat cut, which means the model established using only one type of meat cut for meat quality prediction is not suitable for other meat cut types. A novel portable visible and near-infrared (Vis/NIR) optical system was used to simultaneously predict multiple quality indicators for different commercial meat cut types (silverside, back strap, oyster, fillet, thick flank, and tenderloin) from Small-tailed Han sheep. The correlation coefficients of the calibration set (Rc) and prediction set (Rp) of the optimal prediction models were 0.82 and 0.81 for pH, 0.88 and 0.84 for L*, 0.83 and 0.78 for a*, 0.83 and 0.82 for b*, 0.94 and 0.86 for cooking loss, 0.90 and 0.88 for shear force, 0.84 and 0.83 for protein, 0.93 and 0.83 for fat, 0.92 and 0.87 for moisture contents, respectively. This study demonstrates that Vis/NIR spectroscopy is a promising tool to achieve the predictions of multiple quality parameters for different commercial meat cut types.

KFL중국인학습자들의 한국어 의문사의문문과 부정사의문문의 피치실현과 지각양상 (Perception and Production of Wh-Questions & Indefinite Yes-No Questions Produced by Chinese Korean-Learners)

  • 윤영숙
    • 말소리와 음성과학
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    • 제5권4호
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    • pp.121-128
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    • 2013
  • In Korean, wh-question and indefinite yes-no questions have the same morphemic and syntactic structure. In speech, however, these two types of questions are distinguished by a prosodic difference. In this study, we examined if Chinese Korean leaners can distinguish between these two types of questions in production and if they can correctly perceive the different meaning of a question based on the prosodic information. For this purpose, we analysed two types of interrogative sentences produced by 5 native speakers and 15 Chinese Korean language leaners. The results show that the 5 Korean native speakers produce two types of questions by a salient prosodic difference, i.e., difference of prosodic structure, different pitch range of wh-phrase and indefinite phrase, and different boundary tone. However, for the 15 Chinese speakers, the two types of questions were not distinguished by the same prosodic features but in the perception analysis they were able to distinguish between the two types of questions easily.