어포던스와 기표에 기초한 다기능 가구의 조형에 관한 연구

왕긴 ( Wang¸ Qin ),김진성 ( Kim¸ Jin Sung ) 한국기초조형학회 2021 기초조형학연구 Vol.22 No.5

다기능 가구는 형태가 유연하고 공간을 절약할 수 있어 일상생활에서 비중이 꾸준히 늘고 있다. 하지만 미니멀리즘 디자인((minimalist design) 트렌드에 맞추기 위해 다기능 가구의 조형(modeling)에 담겨야 할 다양한 정보가 항상 무시되고 있다. 이 때문에 사용자들이 ‘심플한(simple)’ 조형에 직면할 경우 인식 마찰로 인해 사용상의 문제가 생길 수 있다. 이 연구의 목적은 사용자가 다기능 가구의 유용성(usefulness)과 편리함(usability)을 더 쉽게 감지할 수 있도록 하는 것이다. 저자들은 다기능 가구의 조형에 대해 어포던스(affordance)와 기표(signifier)의 관점에서 연구를 진행했다. 이 연구는 문헌 검토와 사례 분석을 서로 결합하는 방법을 응용하였다. 저자들은 우선 관련 문헌을 통해 기표와 어포던스 관계를 정리했다. 그런 다음, 이들은 다기능 가구의 사례별로 조형의 세 가지 핵심 요소(모양·색·재료)가 기능 전환 과정에서 어포던스를 지정하는 정보를 전달하는 지표의 역할을 분석했다. 마지막으로, 그들은 다기능 가구의 조형이 해당 어포던스를 명확하게 전달하는 풍부한 정보로 기표를 형성할 수 있다는 것을 발견했는데, 이는 사용자가 가구와 자연스러운 상호작용을 형성하도록 안내하는 데 도움이 된다. 또한, 그들은 다기능 가구 조형을 위해 다음과 같은 설계 단계를 제시했다. 1 단계: 다기능 가구의 기능은 대상 이용자(target user)의 요구에 근거하여 명확히 해야 하며, 사용자가 다른 기능 간에 전환하기 위해 수행해야 하는 동작도 결정해야 한다. 이 단계는 유용성을 실현하는 관건이다. 2 단계: 다기능 가구의 조형은 모양과 색상, 소재의 조합을 통해 구성하고 기능성(functionality)과 동작 가능성(action possibilities), 그에 맞는 동작의 조작 위치 등을 충분히 전달해야 한다. 이 단계가 사용 편의성을 실현하는 관건이다. 그러나 이 두 단계는 향후 연구에서 아직 더 심화돼야 한다. As multifunctional furniture has flexible forms and could save space, its proportion in daily life is constantly increasing. However, in order to cater to the minimalist design trend, the rich information that the modeling of multifunctional furniture should contain is always ignored, which causes users to have a series of usage problems because of cognitive friction when facing “simple” styling. In order to allow the usefulness and usability of multifunctional furniture to be easily perceived by users, the authors conducted a relevant study on the modeling of multifunctional furniture from the perspective of signifier and affordance. The research method of this study is a combination of literature review and case analysis. The authors first sorted out the relationship between signifier and affordance in industrial design through related literature. Then, the authors combined different cases of multifunctional furniture, to analyze the role of the three core elements(shape, color and material) of the modeling as signifiers that carry information specifying affordances during the functional transformation. Finally, the authors found that the modeling of multifunctional furniture can form signifiers with rich information that clearly conveys the corresponding affordances, which is helpful to guide users to form natural interactions with multifunctional furniture. And the authors also put forward the following design steps for multifunctional furniture modeling. Step 1: the functions of multifunctional furniture should be clarified based on the needs of target users, and the actions that users need to perform to switch between different functions should also be determined. The first step is the key to realizing usefulness. Step 2: the modeling of multifunctional furniture should be constructed through different combinations of shapes, colors and materials, which should fully convey the information of the functionality, action possibilities and the operating positions of the corresponding actions. The second step is the key to realizing ease of use. However, these two steps still need to be further deepened in future studies.

An Efficient Method for the Production of Cyclohexylamine from Cyclohexanone and Ammonia over Cu-Cr-La/γ-Al₂O₃

Qin, Shuanglin,Wang, Pan,Huang, Shuangping,Liu, Shuai,Wang, Gaopeng,Wang, Liping,Sun, Meng,Wang, Xiaoji Korean Chemical Society 2015 대한화학회지 Vol.59 No.6

The reductive amination of cyclohexanone with ammonia over Cu-Cr-a/γ-Al₂O₃ was investigated. It was found that a proper solvent with high solubility of ammonia and 4Å molecular sieves for the elimination of generated water contributed to the formation of cyclohexylamine in the premixing process. In addition, the addition of ammonia in the fixedbed reactor could obviously improve the conversion of cyclohexanone to cyclohexylamine. Finally, reaction conditions including reaction temperature, hydrogen pressure and charging rate of the premix were optimized. Under the optimized conditions, cyclohexylamine was obtained in 83.06% yield.

High-density single nucleotide polymorphism chip-based conservation genetic analysis of indigenous pig breeds from Shandong Province, China

Wang, Yanping,Zhao, Xueyan,Wang, Cheng,Wang, Wenwen,Zhang, Qin,Wu, Ying,Wang, Jiying Asian Australasian Association of Animal Productio 2021 Animal Bioscience Vol.34 No.7

Objective: Shandong indigenous pig breeds are important Chinese pig resources. Their progressive population decline in recent decades has attracted attention towards their conservation. Conservation genetics of these indigenous breeds are essential for developing a conservation and utilization scheme. Methods: A high-density single nucleotide polymorphism (HD-SNP) chip-based comparative analysis of genetic characteristics was performed for seven Shandong indigenous pig breeds in the context of five Western commercial breeds. Results: The results showed that Shandong indigenous pig breeds varied greatly in genetic diversity, effective population size, inbreeding level, and genetic distance with the Western commercial breeds. Specifically, Laiwu and Dapulian displayed low genetic diversity, and had a genetically distant relationship with the Western commercial breeds (average F statistics [F_ST] value of 0.3226 and 0.2666, respectively). Contrastingly, the other five breeds (Yantai, Licha, Yimeng, Wulain, and Heigai) displayed high genetic diversity within breed and had some extent of mixture pattern with the Western commercial breeds, especially Duroc and Landrace (F_ST values from 0.1043 to 0.2536). Furthermore, intensive gene flow was discovered among the seven Shandong indigenous breeds, particularly Wulian, Licha, and Heigai, as indicated by the large cluster formed in the principal component analysis scatterplot and small population differentiation (average of 0.1253) among them. Conclusion: Our study advances the understanding of genetic characteristics of Shandong indigenous breeds and provides essential information for developing an appropriate conservation and utilization scheme for these breeds.

The mediating role of atrial fibrillation in causal associations between risk factors and stroke: a Mendelian randomization study

Shanmei Qin(Shanmei Qin),Mengmeng Wang(Mengmeng Wang),Dipender Gill(Dipender Gill ),Zhizhong Zhang(Zhizhong Zhang),Xinfeng Liu(Xinfeng Liu) 한국역학회 2024 Epidemiology and Health Vol.46 No.-

A parallel tasks Scheduling heuristic in the Cloud with multiple attributes

( Qin Wang ),( Rongtao Hou ),( Yongsheng Hao ),( Yin Wang ) 한국인터넷정보학회 2018 KSII Transactions on Internet and Information Syst Vol.12 No.1

There are two targets to schedule parallel jobs in the Cloud: (1) scheduling the jobs as many as possible, and (2) reducing the average execution time of the jobs. Most of previous work mainly focuses on the computing speed of resources without considering other attributes, such as bandwidth, memory and so on. Especially, past work does not consider the supply-demand condition from those attributes. Resources have different attributes, considering those attributes together makes the scheduling problem more difficult. This is the problem that we try to solve in this paper. First of all, we propose a new parallel job scheduling method based on a classification method of resources from different attributes, and then a scheduling method-CPLMT (Cloud parallel scheduling based on the lists of multiple attributes) is proposed for the parallel tasks. The classification method categories resources into different kinds according to the number of resources that satisfy the job from different attributes of the resource, such as the speed of the resource, memory and so on. Different kinds have different priorities in the scheduling. For the job that belongs to the same kinds, we propose CPLMT to schedule those jobs. Comparisons between our method, FIFO (First in first out), ASJS (Adaptive Scoring Job Scheduling), Fair and CMMS (Cloud-Minmin) are executed under different environments. The simulation results show that our proposed CPLMT not only reduces the number of unfinished jobs, but also reduces the average execution time.

Enhanced robustness with damping interval widening strategy of LCL-type converter under weak grid condition

Wang, Qi,Qin, Wenping,Wang, Lei,Han, Xiaoqing,Wang, Peng The Korean Institute of Power Electronics 2020 JOURNAL OF POWER ELECTRONICS Vol.20 No.2

Active damping methods are widely adopted to present a damping effect on the resonance phenomenon without the power loss of LCL-type converters connected to a grid. However, extra sensors are used to implement the damping strategy. In this paper, a sensorless damping strategy where only the grid current is sampled has been proposed. Furthermore, the inner relationship between the tradition capacitor current feedback strategy and the proposed strategy has been clarified. Considering the digital delay and a weak grid, a robust method that uses unit delay feedback to mitigate the phase lag and to widen the effective damping interval has been developed. With this simple measure, stability is enhanced during the Nyquist frequency and robustness is improved when the LCL parameters vary and grid impedance exists. Finally, simulation and experimental results are presented to verify the feasibility and engineering significance of the proposed strategy.

Genetic Epidemiological Analysis of Esophageal Cancer in High-incidence Areas of China

Wang, Kai-Juan,Yang, Jun-Xia,Shi, Jia-Chen,Deng, Song-Yuan,Cao, Xiao-Qin,Song, Chun-Hua,Wang, Peng Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.22

Genetic epidemiological studies have shown that genetic susceptibility to esophageal cancer (EC) is an important cause of its high incidence within families in some areas of China. The purpose of this study was to obtain evidence of a genetic basis of EC in Xin-an and Xin-xiang counties in China. Familial aggregation and complex segregation analyses were performed of 79 EC families in these counties. The heritability of EC was examined using Falconer's method and complex segregation analysis was conducted with the SEGREG program in Statistical Analysis for Genetic Epidemiology (SAGE version 5.3.1). The results showed that the distribution of EC in families did not fit well into a binomial distribution. The heritability of EC among first-degree and second-degree relatives was $67.0{\pm}7.31%$ and $43.1%{\pm}9.80%$, respectively, and the summing up powered heritability was $53.2{\pm}6.74%$. The segregation ratio was 0.045. Complex segregation analysis showed that the genetic model of EC was additive. The current results provide evidence for an inherited propensity to EC in certain high-risk groups in China, and support efforts to identify the genes that confer susceptibility to this disease.

Photoactivation and inactivation of <i>Arabidopsis</i> cryptochrome 2

Wang, Qin,Zuo, Zecheng,Wang, Xu,Gu, Lianfeng,Yoshizumi, Takeshi,Yang, Zhaohe,Yang, Liang,Liu, Qing,Liu, Wei,Han, Yun-Jeong,Kim, Jeong-Il,Liu, Bin,Wohlschlegel, James A.,Matsui, Minami,Oka, Yoshito,Lin American Association for the Advancement of Scienc 2016 Science Vol.354 No.6310

<P>Cryptochromes are blue-light receptors that regulate development and the circadian clock in plants and animals. We found that Arabidopsis cryptochrome 2 (CRY2) undergoes blue light-dependent homodimerization to become physiologically active. We identified BIC1 (blue-light inhibitor of cryptochromes 1) as an inhibitor of plant cryptochromes that binds to CRY2 to suppress the blue light-dependent dimerization, photobody formation, phosphorylation, degradation, and physiological activities of CRY2. We hypothesize that regulated dimerization governs homeostasis of the active cryptochromes in plants and other evolutionary lineages.</P>

Effect of Yeast Chromium and L-carnitine on Lipid Metabolism of Broiler Chickens

Wang, Jundong,Du, Rong,Qin, Jian,Wang, Shaolin,Wang, Wenkui,Li, Hongquan,Pang, Quanhai Asian Australasian Association of Animal Productio 2003 Animal Bioscience Vol.16 No.12

A $3{\times}4$ (chromium and L-carnitine) experiment was designed to investigate the single and interactive effects of adding yeast Cr and L-carnitine to corn-soybean meal diets on lipid metabolism of broiler chickens. Four hundred and eighty one-day-old avian chickens were randomly allocated to 12 treatments of 40 each for 7 weeks. Levels of adding Cr were 0, 400, $600{\mu}g/kg$ and those of Lcarnitine was 0, 30, 50, 100 mg/kg, respectively. The result showed that adding $600{\mu}g/kg$ Cr or 100 mg/kg L-carnitine alone had better regulative effects on fat and cholesterol metabolism than lower adding levels. Effects were more significant at the end of the experiment. There were significantly interactive effects between Cr and L-carnitine on triaclyglycerol, whole cholesterol, HDL, dissociating FFA, and blood glucose, cholesterol and triaclyglycerol of liver, and cholesterol of chest muscle at the end of experiment (p=0.0001-0.0315). But Cr or L-carnitine had no significant effect on growth performance of broiler chickens (p>0.05).

The regularity of sonic curves for the two-dimensional Riemann problems of the nonlinear wave system of Chaplygin gas

Wang, Qin,Song, Kyungwoo AIMS PRESS 2016 Discrete and continuous dynamical systems Vol.36 No.3

<P>We study the regularity of sonic curves from a two-dimensional Riemann problem for the nonlinear wave system of Chaplygin gas, which is an essential step for the global existence of solutions to the two-dimensional Riemann problems. As a result, we establish the global existence of uniformly smooth solutions in the semi-hyperbolic patches up to the sonic boundary, where the degeneracy of hyperbolicity occurs. Furthermore, we show the C-1-regularity of sonic curves.</P>