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Interpretation of coefficient of consolidation from CRS test results
Jia, Rui,Chai, Jinchun,Hino, Takenori Techno-Press 2013 Geomechanics & engineering Vol.5 No.1
Constant rate of strain (CRS) consolidation tests were conducted for undisturbed Ariake clay samples from three boreholes in Saga Plain of Kyushu Island, Japan. The coefficients of consolidation ($c_{\nu}$) were interpreted from the CRS test results by small- and large-strain theory. Large-strain theory was found to interpret smaller $c_{\nu}$ values and less strain rate effect on $c_{\nu}$ than that by small-strain theory. Comparing the theoretical strain distributions within a soil specimen to those obtained by numerical simulation shows that the small-strain theory can be used only for the dimensionless parameter $c_{\nu}/\dot{\varepsilon}H_0^2{\geq}50$ (where $\dot{\varepsilon}$ is strain rate and $H_0$ is the specimen height), and the large-strain theory can be used for a larger range of strain rates. Applying the criterion to undisturbed Ariake clay with a $c_{\nu}$ value of about $1{\times}10^{-7}\;m^2/s$, it is suggested that the large-strain theory should be adopted for calculating the $c_{\nu}$ value when $\dot{\varepsilon}$ > 0.03%/min.
Cluster Size-Constrained Fuzzy C-Means with Density Center Searching
Jiarui Li,Yukio Horiguchi,Tetsuo Sawaragi 한국지능시스템학회 2020 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.20 No.4
Fuzzy C-means (FCM) has a definite limitation when partitioning a dataset into clusters with varying sizes and densities because it ignores the scale difference in different dimensions of input data objects. To alleviate this cluster size insensitivity, we propose a wrapper algorithm for FCM by introducing cluster size as a priori information and limiting the search direction on the basis of density benchmarks (CSCD-FCM). This method is divided into two stages. The first stage adjusts the position of each cluster while maintaining its shape, and the second stage changes the shape of each cluster while maintaining its center. Both steps modify fuzzy partitions generated by FCM-like soft clustering methods by optimizing a “size-constrained” objective function. Numerical and practical experiments with unbalanced cluster size settings demonstrate the effectiveness of this method for extracting actual cluster structures, as well as achieving the desired cluster populations.
Highly Porous Cellulose Microbeads and their Adsorption for Methylene Blue
Jiarui Hua,Ranju Meng,Tiejun Wang,Huiying Gao,Zhenze Luo,Yuanyuan Jin,Lin Liu,Juming Yao 한국섬유공학회 2019 Fibers and polymers Vol.20 No.4
Highly porous cellulose microbeads with porosity of more than 90 % were successfully prepared via a faciledissolution and subsequent regeneration of cellulose in H2SO4/Na2SO4 coagulation bath. Effects of coagulation temperature,H2SO4, and Na2SO4 concentration on the microstructure, average diameter, porosity, specific surface area, and mechanicalproperty of formed cellulose beads were investigated systematically. In view of the high porosity and specific area, thecellulose beads were used as adsorbents for dye removal. The results revealed that the porous cellulose beads exhibited highadsorption performance with maximum adsorption capacity of 48.80 mg/g for cationic dye methylene blue. Besides, theporous cellulose beads also presented a potential in practical application and its adsorption capacity for methylene blue stillretained 29.43 mg/g after six adsorption-desorption cycles.
Jiarui Zhang,Ying Qiao,Jingjing Le,Daliang Sun,Yangtai Guan,Zezhi Li 대한신경정신의학회 2016 PSYCHIATRY INVESTIGATION Vol.13 No.2
ObjectiveaaTo study whether the effects of olanzapine on gastrointestinal motility is related to the serotonin antagonism and myosin light chain kinase. MethodsaaMale Sprague-Dawley rats were randomly divided into four groups. Olanzapine gavage was performed for each treatment group during the course of 30 continuous days, while the same volume of saline was given to the rats in the control group. Defecation of the rats was observed on days 7 and 30 after olanzapine gavage. The effects of olanzapine on contraction of colonic smooth muscles were observed in ex vivo experiments. A Western blot was used to evaluate expression levels of the serotonin transporter (SERT) and MLCK in colon segments of the rats. ResultsaaCompared to the control group, 5–160 μM of olanzapine could inhibit dose-dependently the contraction of colonic smooth muscle ex vivo experiments. The maximum smooth muscle contraction effects of 5-HT and acetylcholine significantly decreased after treatment with 40–160 μM of olanzapine. Constipation was found in the olanzapine-treated rats on day 7 and have sustained day 30 after gavage. Expression of MLCK in olanzapine-treated rats was significantly decreased, whereas the expression of SERT significantly increased on the day 7, then significantly decreased on the day 30 after olanzapine gavage. ConclusionaaSERT and MLCK may involve in the inhibition of colonic contraction induced by olanzapine.
Genetic transformation of wheat: current status and future prospects
Jiarui Li,Xingguo Ye,Baoyan An,Lipu Du,Huijun Xu 한국식물생명공학회 2012 Plant biotechnology reports Vol.6 No.3
Genetic transformation is a reverse genetics tool for validation of target genes and crop improvement. However, due to its low efficiency and genotype dependency,wheat is considered a recalcitrant plant for genetic transformation. During the last 20 years, various in vitro and in planta transformation methods have been reported in wheat. Until now, biolistic particle and Agrobacteriummediated wheat transformation methods using immature embryos as explants have been the two major transformation approaches. In addition to immature embryos, other explant types, such as mature embryos, anther-derived calli, inflorescences, apical meristems, and other floral organs, have been employed; however, they need further optimization. In addition to the common marker genes,such as bar, hpt and gus, other effective markers, ALS,AtMYB12 and pmi, have been successfully used for selection of positive transgenic plants. Numerous agronomic trait genes such as biotic stress resistance or tolerance genes have been transferred into wheat plants. Future prospects, such as recipient wheat cultivars and explants,marker free issues, and transgene silencing, are discussed. The objective of this review is to summarize current successful techniques for wheat transformation and stimulate further research into long-term wheat improvement by genetic engineering approaches.
공간마케팅 관점에서 본 패션브랜드 플래그숍의 감성디자인 표현특성 연구
이가예(LI JIARUI),이민(Lee, Min) 한국실내디자인학회 2019 한국실내디자인학회 학술대회논문집 Vol.21 No.3
With the development of science and technology and the development of society, people’s living standards have gradually improved. Therefore, the requirements for life are getting higher and higher. The indispensable part of people’s life is the shopping mall, which represents the flagship store. The brand flagship store provides consumers with a better experience in shopping, understanding the history and culture of their brands. Further research on how to get people to get better consumer experience through flagship stores, get psychological satisfaction, and how to improve these consumer experiences. Through the study of various characteristics of perceptual design, we will further explore the space utilization methods of flagship stores. Focusing on the characteristics of the perceptual space, rationally designing space in this way can influence people’s values and consumption views, and thus predict the development trend of future space design.
Weijun Cen,Jiarui Luo,Jishun Yu,M. Shamin Rahman 대한토목학회 2020 KSCE JOURNAL OF CIVIL ENGINEERING Vol.24 No.1
The calculation of factor of safety and the determination of the critical slip surface (a slip surface with the minimal factor of safety) are essential steps in stability analysis of soil slopes. In this study, a genetic simulated annealing algorithm (GSA), which combines the genetic algorithm and the simulated annealing algorithm, is proposed to quickly and accurately locate the critical slip surface of soil slopes. The corresponding factors of safety of slip surfaces are calculated based on the stress field of soil slopes that are computed by finite element method (FEM). The search ability of GSA for the critical slip surface of an earth-rock dam slope is proved to be more accurate and efficient compared with the golden-section method based on the same stress field calculated by FEM. In addition, a practical slope with complex soil layering is presented to further illustrate the reasonability of the calculation results of GSA in conjunction with FEM. The numerical simulations shows that the factor of safety and the critical slip surface determined using GSA with FEM is in good agreement with that using the shear strength reduction method.