• Title/Summary/Keyword: innovation pattern

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Effects of Prolonged Running-Induced Fatigue on the Periodicity of Shank-Foot Segment Coupling and Free Torque

  • Ryu, Ji-Seon
    • Korean Journal of Applied Biomechanics
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    • v.26 no.3
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    • pp.257-264
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    • 2016
  • Objective: The purpose of this study was to determine the periodicity of shank-foot segment coupling and free torque before and after fatigue induced by prolonged running. Method: Fifteen young healthy male participants with a rear-foot strike ran on instrumented dual-belt treadmills at 70% of their maximum oxygen uptake for 65 min. Kinematic and ground reaction force data were collected for 20 continuous strides at 5 and 65 min (considered the fatigued condition). The approximate entropy tool was applied to assess the periodicity of the shank internal-external rotation, foot inversion-eversion, shank-foot segment coupling, and free torque for the two running conditions. Results: The periodicity of all studied parameters, except foot inversion-eversion, decreased after 65 min of running (fatigued condition) for 80% of the participants in this study. Furthermore, 60% of the participants showed similarities in the change of periodicity pattern in shank internal-external rotation, coupling, and free torque. Conclusion: The findings indicated that the foot inversion-eversion motion may pose a higher risk of injury than the shank internal-external rotation, coupling, and free torque in the fatigued condition during prolonged running.

An Analysis of Local Wind Field based on Urban Development (도시개발에 따른 국지 바람장 분석)

  • Song, Dong Woong
    • Journal of Environmental Impact Assessment
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    • v.20 no.2
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    • pp.133-140
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    • 2011
  • A numerical study with Envi-met model is experimented to investigate the characteristics of wind pattern in Gangwon innovation city. In all case, most conditions such as wind speed, temperature, and surface are considered as the same, but wind direction is the only different factor. The wind directions considered in this study have a meaning of prevailing wind direction. When the prevailing wind with the direction of $247^{\circ}$ blows into the city, the ventilation passage toward the outside of city is formed and the stagnation of air is not expressed. In case of having the direction of $270^{\circ}$, most evident ventilation passages are composed. When the inflow wind direction is the north, $0^{\circ}$, there is some possibility of stagnation phenomenon. The case where the representative wind direction of three kind will flow with development, in compliance with the building is caused by with screening effect of some and shows a true stagnation phenomenon, wishes in the park and flowing water and the greens area to be for a long time formed and the wind direction is maintained.

A Secure Strategy of e-Logistics Integration Using A Pattern of Technical Acquisition (기술획득 전략에 따른 e-로지스틱스 통합화 안전전략)

  • 김종기;서장훈;박명규
    • Proceedings of the Safety Management and Science Conference
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    • 2005.05a
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    • pp.177-182
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    • 2005
  • This paper examines to focus on General Strategy of e-logistics activity for SCM(Supply Chain Management) Build-up, especially the field service logistics integration. And this research analyzes the case study(Business of Strategy Group Unit) Survey involving effective logistics management that leads customer satisfaction, seeking to find out the key elements of competitive policy. Because problems arise from the differences between their goals and structures, which cause each side to feel vulnerable to opportunism or shirking of responsibilities by the other. The goal of a logistics system is to ensure that every family planning client always receives the contraceptives partner wants, and that they are in good condition and have not expired. In order to select, procure, and distribute the right quantities of the right contraceptives, managers of the logistics system must keep informed of the rates of use of each contraceptive and of the quantity of available supplies. As a result, We propose that a firm's e-logistics safe strategy is an important locus innovation and a crucial source of value creation for the firm its suppliers, partners, and customers.

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An analysis of Propensity to Dinning -Centering on Propensity to Consumption in the Busan Area- (생활양식에 따른 외식성향 분석 -부산지역의 소비성향을 중심으로-)

  • Gyeong, Yeong-Gu;Park, Han-Na
    • Journal of Applied Tourism Food and Beverage Management and Research
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    • v.15 no.2
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    • pp.23-41
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    • 2004
  • This study aimed at categorizing food product consumer's life types, understanding properties of each type, identifying differences in the food consumption pattern, and suggesting a strategical plan to implement market segmentation for the future food products. A demonstrative analysis revealed that consumption tendencies of the sample group in the Busan area could be categorized into four types-popular brand orientation, convenience and practicality orientation, and change and innovation oriention; an analysis of demographical differences in each group demonstrated that variabes of age and family formation showed a significant difference within a significant level. A test of differences in the significance among food consumption types in each group demonstrated that there was no signifcant difference in the number of dining-out, average cost of dining-out per person, dining-out of the week, cost of dinner, and attributes of food service selection. To the contrary, there was a significant difference in the purpose of dining-out, place of lunch, cost of lunch, menu of dinner, and food service information medium among consumption tendencies of each within a significant level.

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On the set up to the Number of Hidden Node of Adaptive Back Propagation Neural Network (적응 역전파 신경회로망의 은닉 층 노드 수 설정에 관한 연구)

  • Hong, Bong-Wha
    • The Journal of Information Technology
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    • v.5 no.2
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    • pp.55-67
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    • 2002
  • This paper presents an adaptive back propagation algorithm that update the learning parameter by the generated error, adaptively and varies the number of hidden layer node. This algorithm is expected to escaping from the local minimum and make the best environment for convergence to be change the number of hidden layer node. On the simulation tested this algorithm on two learning pattern. One was exclusive-OR learning and the other was $7{\times}5$ dot alphabetic font learning. In both examples, the probability of becoming trapped in local minimum was reduce. Furthermore, in alphabetic font learning, the neural network enhanced to learning efficient about 41.56%~58.28% for the conventional back propagation. and HNAD(Hidden Node Adding and Deleting) algorithm.

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Negative Word-of-Mouths in Online Community : Contents and Life Cycles

  • Wang, Chih-Chien;Wang, Pei-Hua;Yang, Yann-Jy;Yang, Yolande Y.H.
    • Journal of Information Technology Applications and Management
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    • v.20 no.3
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    • pp.79-92
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    • 2013
  • Word-of-mouths (WOMs) are now an important information source for purchase decision. Due to the advance in internet technology, people now can share online their consumption experience, both positive and negative, to others. The WOMs may diffuse to not only their friends but also enormous online users. When consumers dissatisfy the product or service, they may share the dissatisfactory experience to others as WOM, which may bring out discussions for the product or service. The discussions on the negative WOM may help to communicate the negative information to enormous others, which may damage the sale of the product or service. The diffusion and life cycle of negative WOM is an important issue for managers. However, few studies focus on it. Thus, the current study focuses on the discussion pattern and life cycle of negative WOMs by observing the 782 discussion articles in a large online community.

Identification of Differentially Expressed Genes by TCDD in Human Bronchial Cells: Toxicogenomic Markers for Dioxin Exposure

  • Park, Chung-Mu;Jin, Kyong-Suk;Lee, Yong-Woo
    • Biomedical Science Letters
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    • v.18 no.1
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    • pp.1-9
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    • 2012
  • Differentially expressed genes by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) were identified in order to evaluate them as dioxin-sensitive markers and crucial signaling molecules to understand dioxin-induced toxic mechanisms in human bronchial cells. Gene expression profiling was analyzed by cDNA microarray and ten genes were selected for further study. They were cytochrome P450, family 1, subfamily B, polypeptide 1 (CYP1B1), S100 calcium binding protein A8 (calgranulin A), S100 calcium binding protein A9 (calgranulin B), aldehyde dehydrogenase 1 family, member A3 (ALDH6) and peroxiredoxin 5 (PRDX5) in up-regulated group. Among them, CYP1B1 was used as a hallmark for dioxin and sharply increased by TCDD exposure. Down-regulated genes were IK cytokine, interferon-induced protein with tetratricopeptide repeats 1 (IFIT1), nuclease sensitive element binding protein 1 (NSEP1), protein tyrosine phosphatase type VI A, member 1 (PTP4A1), ras oncogene family 32 (RAB32). Although up-regulated 4 genes in microarray were coincided with northern hybridization, down-regulated 5 genes showed U-shaped expression pattern which is sharply decreased at lower doses and gradually increased at higher doses. These results introduce some of TCDD-responsive genes can be sensitive markers against TCDD exposure and used as signaling cues to understand toxicity initiated by TCDD inhalation in pulmonary tissues.

Two-dimensional thermo-elastic analysis of FG-CNTRC cylindrical pressure vessels

  • Arefi, Mohammad;Mohammadi, Masoud;Tabatabaeian, Ali;Dimitri, Rossana;Tornabene, Francesco
    • Steel and Composite Structures
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    • v.27 no.4
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    • pp.525-536
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    • 2018
  • This paper focuses on the application of the first-order shear deformation theory (FSDT) to thermo-elastic static problems of functionally graded carbon nanotubes reinforced composite (FG-CNTRC) cylindrical pressure vessels. A symmetric displacement field is considered as unknown function along the longitudinal direction, whereas a linear distribution is assumed along the thickness direction. The cylindrical pressure vessels are subjected to an inner and outer pressure under a temperature increase. Different patterns of reinforcement are applied as distribution of CNTs. The effective material properties of FG-CNTRC cylindrical pressure vessels are measured based on the rule of mixture, whereas the governing equations of the problem are here derived through the principle of virtual works. A large parametric investigation studies the effect of some significant parameters, such as the pattern and volume fraction of CNTs, on the longitudinal distribution of deformation, strain and stress components, as useful tool for practical engineering applications.

Information Diffusion Difference by Product Type Based on Social Media Type (소셜 미디어 유형에 기반한 제품유형에 따른 정보 확산 차이)

  • Heon Baek
    • Information Systems Review
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    • v.19 no.3
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    • pp.91-104
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    • 2017
  • This study aims to understand the differences in the media characteristics of two types of media, namely, Blog and Twitter, as well as in their factors that affect product information diffusion. To achieve these objectives, the information diffusion pattern is identified by analyzing the number of product-related posts in each media based on the Bass model. The analysis results revealed that the information diffusion speed of hedonic goods was faster than that of utilitarian goods. Regardless of product type, Twitter had a higher imitation effect than Blog, while Blog had a higher innovation effect than Twitter. The results implied that users of Blog tended to find information by themselves while those of Twitter relied more on the others' evaluation than their own subjective evaluations of innovations.

Study on Qiang embroidery patterns creative design based on Shape Grammars

  • Ruiyu Li;Xiajie Zhao
    • International Journal of Advanced Culture Technology
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    • v.12 no.1
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    • pp.51-59
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    • 2024
  • Qiang ethnic group is one of the fifty-six ethnic minorities in China, and Qiang embroidery, as an important achievement of Qiang's intangible cultural heritage, is the precipitation and testimony of the history and culture of the Qiang ethnic group. However, with the development of the times, traditional and ancient Qiang embroidery is facing a dilemma due to the problem of a single form of communication. Therefore, it is necessary to add new communication media for Qiang embroidery to help it spread and develop better. In this paper, we extract the core representative patterns of Qiang embroidery, use the "shape grammars" as the rules of morphological changes, and generate new decorative pattern patterns with the characteristics of Qiang embroidery by adding, deleting, mirroring, rotating, and other relevant rules of changes, and combine the new patterns with the rules of formal beauty to combine the layout, which is then applied in the design of different cultural creations and products. The new patterns are combined with the rules of formal beauty and applied in the design of different cultural and creative products. To provide a quantitative method for the digital protection of Qiang embroidery in the new era of Chinese traditional art, and also provide new ideas for the industrialization application.