Analysis on Preceding Study of Consumer's Store-Choice Model: Focusing on Commercial Sphere Analysis Theories

Zhi-Xuan Quan,Myoung-Kil Youn 한국유통과학회 2016 The Journal of Industrial Distribution & Business( Vol.7 No.4

Purpose – There are numerous theories for retail trade area analysis which are designed to select candidate locations for new stores. In this study, comparative analysis on the characteristics from those of the theories are shown, and the explanation for the power in consumers’ store-choice behaviors and their limitations are examined. Also, plans for improving commercial sphere analysis are explored. Research design, data, and methodology – This study is based on literature reviews with normative research methodology. Among many researches regarding the analysis on the location and commercial sphere for launching a new store, researches relying on statistics are excluded in this study since they belong to the marketing research area,. Results – In the Law of retail gravitation, Huff’s model multinomial logit model and etc. are mutual complementary mathematical techniques for analyzing commercial spheres and each of them has its own characteristics. These theories rely on the same hypothesis in which consumers are all believed to be behaving rationally under a similar behavioral system. However, the trial in explaining or estimating behavior of choosing a store with only a select size of the population that is objectively estimated by some major properties has limits in its credibility. Conclusion – Research on consumer’s spatial behaviors can be fully illustrative and explainable when it has both quantitative approaches such as ‘law of retail gravitation’, ‘logit model’ and etc., and qualitative approaches like consumer’s ‘cognitive structure’, ‘learning status’, ‘image formation’, ‘attitude’ and etc.

A study on policy of elders’ long term care services: Focusing on problems of insurance system and solutions

Zhi-Xuan Quan 국제융합경영학회 2016 융합경영연구 Vol.4 No.3

The purpose of this study is to examine the long term care insurance system that has been 9 years and to understand issues arose during settlement of the insurance system in accordance with provision of solutions to increase the qual-ity of elders’ long term care service. Also, the study is aiming at providing contribution to both satisfaction of cus-tomers and workforces at the field along with achievement of the primary goal that the elders’ care service policy was aiming at. To achieve the purpose of the study, authors gathered and analyzed reports and literatures from books published domestically, governmental open data and statistical data related to policy on long term care service insur-ance for elders to examine current problematic issues of long term care insurance and to explore ways to improve by having case studies of advanced countries. The result of this study shows that there are differences in the way how participants of the programs react to registering to insurance of program for supporting elderly persons' social activi-ties and employment despite Korean government is operating the programs along general guidance for the programs as a standardized guideline.

Comorbidity Relationship to Outcome of Radical Cystectomy in Chinese: a Single Institution Study with the ACE-27 Comorbidity Index

Xuan, Zhu,Zhong, Zhao-Hui,Zhang, Xuan-Zhi,Zhang, Lei,Zhao, Xiao-Kun,Lv, Chen,Xu, Ran,Ren, Wei-Gang,Li, Song-Chao Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.3

To determine the relationship between comorbidity and outcome after radical cystectomy in Chinese patients by using the Adult Comorbidity Evaluation (ACE)-27 index. Two-hundred-and-forty-six patients treated with radical cystectomy at the Second Xiangya Hospital of Central South University, Hunan Province, China between 2000 and 2010 were retrospectively analyzed. Medical records were reviewed for age, gender, delayed time of radical cystectomy, urinary diversion type, pelvic lymphadenectomy status, TNM stage, and pathological grade. Comorbidity information was assessed by the ACE-27 index. The outcome measurement was overall survival. Univariate and multivariate Cox proportional hazards regression analyses were used to determine the association between comorbidity and outcome. The study population consisted of 215 (87.40%) males and 31 (12.60%) females with a mean age of $62{\pm}11$ years. Median duration of follow-up was $47{\pm}31$ months. A total of 151 (61.38%) patents died during follow-up. Of those, 118 (47.97%) had at least one comorbidity. According to the ACE-27 scores, 128 (52.03%) patients had no comorbidity, 79 (32.11%) had mild, 33 (13.41%) had moderate, and 6 (2.45%) had severe comorbidities. Multivariate analysis indicated that moderate (p=0.002) and severe (p<0.001) comorbidity was significantly associated with decreased overall survival. In addition, age ${\geq}70$ years (p=0.002), delayed time of radical cystectomy >12 weeks (p=0.044), pelvic lymphadenectomy status (p=0.014), and TNM stage >T3 (p<0.001) were determined to be independent risk factors of overall survival. Increasing severity of comorbidity statistically correlated with decreased overall survival after radical cystectomy.

Analysis of Operating Efficiency of China’s Agricultural Listed Companies

Zhi-Run Li,Shi-Yong Piao,Yu-Cong Sun,Shuang-Yu HU,Xuan-You Jin,Jong-In Lee 경상대학교 농업생명과학연구원 2020 농업생명과학연구 Vol.54 No.6

In recent years, China's agricultural listed companies have developed rapidly. This paper studies the operating efficiency of listed agricultural companies in China. exploring the factors that affect the operating efficiency of listed agricultural companies, and proposes targeted countermeasures for the development of listed agricultural companies. And give some suggestions to Korean agricultural companies and A share investors. This paper uses the DEA model, selects the 40 best-developed Chinese agricultural listed companies in 2018 as a sample, analyzes the operating efficiency of these companies, and added two new input variables: asset impairment losses (AIL) and business tax and surcharge (BTS), which will also have an impact on operating efficiency. This paper can provide reliable suggestions for the development of agricultural listed companies, and thus guide the healthy operation of agricultural companies.

Molecular cloning of novel α-gliadin genes from Crithopsis delileana and the evolution analysis with those from Triticeae

Zhi-Fu Guo,Xiang-Yu Long,Pan Dong,Yu-Ming Wei,Li-Ping Bai,Xiao-Xuan Dang,Hao-Lei Wan,Li-Jun Zhang,You-Liang Zheng 한국유전학회 2011 Genes & Genomics Vol.33 No.2

The α-gliadins from Crithopsis delileana (Schult) Roshev (2n=2x=14, KK) were investigated by Acid polyacrylamide gel electrophoresis (A-PAGE) analysis. It was indicated that the electrophoresis mobility of gliadins from C.delileana had obvious difference with those from common wheat in α, γand ω region. Using primers designed from published sequences of α-gliadin genes, three α-gliadin genes were isolated from C. delileana, which were designated as gli-ka1,gli-ka2 and gli-ka3, respectively. Two in-frame stop codons were found in the coding sequences of gli-ka3, indicating that gli-ka3 could be a pseudogene. The gli-ka2 was a gliadin with an odd number of cysteines, resulting from a non-synonymous mutation. This change might lead to the interactive behavior of gli-ka2. Three α-gliadin genes of C. delileana had the similar but not identical primary structures to the corresponding gene sequences from other wheat related species. By the alignment of α-gliadin genes from Triticeae,phylogenetic analysis indicated that three α-gliadin genes of C. delileana clustered together with all α-gliadin genes from Ee genome of Lophopyrum elongatum by an interior paralleled branch.

Node Localization of Wireless Sensor Networks Based on DV-hop and Steffensen Iterative Method

Wang Zhi Ping,Chen Xuan 보안공학연구지원센터 2015 International Journal of Future Generation Communi Vol.8 No.2

In order to reduce localization error of the sensor node, a novel node localization algorithm (DVHop-Steff) is proposed in this paper based on DV-Hop algorithm and Steffensen iterative method. Firstly, DV-Hop algorithm is used to obtain location position of wireless sensor nodes; and then Steffensen iterative method is used to correct the locate results of DV-Hop algorithm and achieve higher localization precision, finally, the performance of the proposed algorithm is tested by simulation analysis. The results show that the localization precision of the proposed algorithm has been improved significantly and has more wide application scope.

Identification of Proteins Responsible for the Development of Adriamycin Resistance in Human Gastric Cancer Cells Using Comparative Proteomics Analysis

( Yi Xuan Yang ),( Huai Dong Hu ),( Da Zhi Zhang ),( Hong Ren ) 생화학분자생물학회 2007 BMB Reports Vol.40 No.6

A system of nonlinear variational inclusions in real Banach spaces

Chuan-Zhi Bai,Jin-Xuan Fang 대한수학회 2003 대한수학회보 Vol.40 No.3

In this paper, we introduce and study a system of nonlinear implicit variational inclusions (SNIVI) in real Banach spaces: determine elements $x^{\ast}, \ y^{\ast}, \ z^{\ast} \in E$ such that $$\theta \in \alpha T(y^{\ast}) + g(x^{\ast}) - g(y^{\ast}) + A(g(x^{\ast})) \hspace{5mm} {\rm for} \ \alpha > 0, $$ $$\theta \in \beta T(z^{\ast}) + g(y^{\ast}) - g(z^{\ast}) + A(g(y^{\ast})) \hspace{5mm} {\rm for} \ \beta > 0,$$ $$\theta \in \gamma T(x^{\ast}) + g(z^{\ast}) - g(x^{\ast}) + A(g(z^{\ast})) \hspace{5mm} {\rm for} \ \gamma > 0, $$ where $T, g : E \to E$, $\theta$ is zero element in Banach space $E$, and $A : E \to 2^E$ be $m$-accretive mapping. By using resolvent operator technique for $m$-accretive mapping in real Banach spaces, we construct some new iterative algorithms for solving this system of nonlinear implicit variational inclusions. The convergence of iterative algorithms be proved in $q$-uniformly smooth Banach spaces and in real Banach spaces, respectively.

Mechanical evaluation of polymer microneedles for transdermal drug delivery: In vitro and in vivo

Rui Xuan Liu,Yu Ting He,Ling Liang,Liu Fu Hu,Yue Liu,Rui-xing Yu,Bo Zhi Chen,Yong Cui,Xin Dong Guo 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.114 No.-

In this study, we reported two types of PMNs based on polylactic acid (PLA) and polyvinyl alcohol (PVA),respectively. Parafilm M film, porcine skin, and rats’ models were operated to evaluate the mechanicalproperties in vitro and in vivo to find optimal parameters for efficient insertion. Insertion depth was measuredusing Digital Force Gauge by changing insertion force and speed, respectively. Results showed thatincreasing the insertion force and speed used for PMNs application led to a significant increase in thedepth of insertion. A force of 18 N under a speed of 330 mm/min was the optimal condition for insertingPMNs array into ParafilmM film and porcine skin. In addition, PLA-MNs exhibited higher robustness andenhanced homogeneity in insertion depth compared with PVA-MNs, but PVA-MNs were able to reachmuch deeper insertion depth. Moreover, Sprague Dawley (SD) rat experiments confirmed the effectivenessof optimal insertion parameters for transdermal drug delivery. This study illustrated not only thedevelopment of novel PMNs but also the mechanical evaluation for the design of PMNs.

Twin positive solutions of functional differential equations for the one-dimensional $p$-laplacian

Chuan-Zhi Bai,Jin-Xuan Fang 대한수학회 2003 대한수학회보 Vol.40 No.2

For the boundary value problem (BVP) of second order functional differential equations for the one-dimensional $p$-Laplac-ian: \begin{eqnarray*} &\mbox{}& (\Phi_p (y^{\prime}))^{\prime}(t) + m(t) f(t, y^t) = 0 \mbox{} \hspace{0.5cm} {\rm for} \ t \in [0, 1],\\ &\mbox{}& \hspace{12mm} y(t) = \eta (t) \mbox{} \hspace{ 0.5cm} {\rm for} \ t \in [- \sigma, 0],\\ &\mbox{}& \hspace{12mm} y^{\prime}(t) = \xi (t) \mbox{} \hspace{ 0.5cm} {\rm for} \ t \in [1, d], \end{eqnarray*} suitable conditions are imposed on $f(t, y^t)$ which yield the existence of at least two positive solutions. Our result generalizes the main result of Avery, Chyan and Henderson.