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Meng-Wen Wu,Xiaoyan Wang,Sijia Qiao,Chung-Hua Shen,Juan Wang 한국증권학회 2022 Asia-Pacific Journal of Financial Studies Vol.51 No.2
This study investigates the effect of non-financial firms’ activities in shadow banking on firm risk and performance. Using manually collected data of entrusted loans from Chinese listed firms, we find that lending firms’ bankruptcy risk and performance increases from their engagement of entrusted loan businesses in the year the loans are issued and in the following year. Further, firms’ risk increases and performance improves significantly when firms are financially healthy, financially constrained, and non-state-owned. Overall, our findings provide policy implications that the risk of shadow banking activities must be cautious.
Wen Zhang,Victoria Pease,Qingpeng Meng,Rongguo Zheng,Tairan Wu 한국지질과학협의회 2017 Geosciences Journal Vol.21 No.5
The Mingshui and Shuangjingzi granitic plutons are exposed in the northern Beishan area, in the southern Central Asia Orogenic Belt. U-Pb zircon dating indicates that Mingshui secondary intrusive lithosfacies and Shuangjingzi quartz monzodiorite formed at 328 ± 2 Ma and 272 ± 2 Ma, respectively. The former is composed of grey white monzogranites and potassic altered flesh red monzogranites. Geochemistry indicates they are calc-alkaline I-type granites. Shuangjingzi granites are mainly composed of unfractionated calc-alkaline I-type quartz monzodiorite, granodiorite and monzogranite. The Mingshui grey white monzogranites with negative initial εNd (–2.0 to –1.7) and moderate initial 87Sr/86Sr values (0.706740 to 0.710092) were probably derived from mixing of the depleted mantle (juvenile) component and the Palaeoproterozoic–Archean crust (or sedimentary) component and represent volcanic arc granites. The Shuangjingzi quartz monzodiorites are most likely derived from mafic to intermediate igneous protolith and represent post-collisional granites. This work, combined with the regional geology, suggests the Palaeo-Asian Ocean closed between 328 Ma and 272 Ma in the northern Beishan area.
Wen-wu Huang,Xiaobo Li,Meng Yue Wang,Hai-ming Shi,Ying Peng,Chong-sheng Peng,Min Zhang,Yue Li,Jing Lu 대한약학회 2012 Archives of Pharmacal Research Vol.35 No.11
Two HPLC methods with diode array detection (HPLC-DAD) and electrospray ionization-mass spectrometry (HPLC-ESI/MS), respectively, were developed to investigate the differences of chemical constituents and their metabolism in gastrointestinal tract in vitro between two decoctions of crude and processed Glycyrrhizae radix. Total of eleven constituents (liquiritin apioside, liquiritin, licuraside, isoliquiritin, ononin, glycyrrhizin, liquiritigenin-7,4'-diglucoside, licorice saponin A3, 22β-acetoxylglycyrrhizic acid, licorice saponin G2, and yunganoside E2) were identified in the two decoctions, whereas lower contents of these constituents were usually found in the decoction of processed G. radix. Furthermore, these constituents were metabolized into their respective aglycons in human intestinal bacteria juice, and the metabolism ratios were all higher in processed G. radix decoction. No change was found in artificial gastric or intestinal juice. This study revealed that the processing can alter the contents of main constituents in crude G. radix and their metabolism in gastrointestinal tract, in which intestinal bacteria play an important role in the metabolism of licorice constituents.
Meng-Jie Hu,Yan-Wu Wang,Jiang-Wen Xiao 제어·로봇·시스템학회 2017 International Journal of Control, Automation, and Vol.15 No.3
This paper is concerned with the problem of positive observer design for impulsive positive systems(IPS) with interval uncertainties and time delay. A copositive Lyapunov-Krasovskii functional with exponentialterm is constructed. By applying the average impulsive interval method, sufficient conditions for the existence ofthe positive observer are established to guarantee the exponential stability of the corresponding augmented system,which ensures the designed positive observer can estimate the system states exponentially. Combined with the linearprogramming (LP) technique, an algorithm is developed to design the observer gain matrices. Finally, a numericalexample is provided to show the effectiveness of the theoretical results.
Xie Meng,Du Jinying,Yang Kunqi,Song Shaoting,Lv Zonghui,Xu Huailiang,Wen An Xiang,Wang Qin,Jiang Yanzhi,Zhu Guangxiang,Wu Jiayun,Yao Yongfang,Ni Qingyong 한국곤충학회 2021 Entomological Research Vol.51 No.2
Leaf-rolling weevils (Coleoptera: Atelabidae) are considered to be specialists that oviposit only on one or two plant species. However, Apoderus dimidiatus can oviposit on at least five species. We aimed to determine whether A. dimidiatus females have different preferences for oviposition substrates, and whether differences in physical factors, nutrition and parasitism affected their choices. We observed the number of cradles, hatched larvae, pupae, emerging adults and parasitism rate during one breeding season. Weevils were given access to two host plant species, Rosa multiflora and Rubus ichangensis, and the leaf size and nutrient contents of the two plant species were investigated. We found that nutritional content, especially soluble carbohydrate, correlated with oviposition preference of weevils, and the more nutritious plant species, R. multiflora, was the preferred host in our experiment. Weevils can also use Ru. ichangensis and other plant species as hosts, likely to relieve the high parasitic pressure when laying eggs on a single host species.
Study of Data Placement Schemes for SNS Services in Cloud Environment
( Yen-wen Chen ),( Meng-hsien Lin ),( Min-yan Wu ) 한국인터넷정보학회 2015 KSII Transactions on Internet and Information Syst Vol.9 No.8
Due to the high growth of SNS population, service scalability is one of the critical issues to be addressed. The cloud environment provides the flexible computing and storage resources for services deployment, which fits the characteristics of scalable SNS deployment. However, if the SNS related information is not properly placed, it will cause unbalance load and heavy transmission cost on the storage virtual machine (VM) and cloud data center (CDC) network. In this paper, we characterize the SNS into a graph model based on the users` associations and interest correlations. The node weight represents the degree of associations, which can be indexed by the number of friends or data sources, and the link weight denotes the correlation between users/data sources. Then, based on the SNS graph, the two-step algorithm is proposed in this paper to determine the placement of SNS related data among VMs. Two k-means based clustering schemes are proposed to allocate social data in proper VM and physical servers for pre-configured VM and dynamic VM environment, respectively. The experimental example was conducted and to illustrate and compare the performance of the proposed schemes.
Xiaoning Wu,Xiaoqian Xu,Jialing Zhou,Yameng Sun,Huiguo Ding,Wen Xie,Guofeng Chen,Anlin Ma,Hongxin Piao,Bingqiong Wang,Shuyan Chen,Tongtong Meng,Xiaojuan Ou,Hwai-I Yang,Jidong Jia,Yuanyuan Kong,Hong Yo 대한간학회 2023 Clinical and Molecular Hepatology(대한간학회지) Vol.29 No.3
Background/Aims: Existing hepatocellular carcinoma (HCC) prediction models are derived mainly from pretreatment or early on-treatment parameters. We reassessed the dynamic changes in the performance of 17 HCC models in patients with chronic hepatitis B (CHB) during long-term antiviral therapy (AVT). Methods: Among 987 CHB patients administered long-term entecavir therapy, 660 patients had 8 years of follow-up data. Model scores were calculated using on-treatment values at 2.5, 3, 3.5, 4, 4.5, and 5 years of AVT to predict threeyear HCC occurrence. Model performance was assessed with the area under the receiver operating curve (AUROC). The original model cutoffs to distinguish different levels of HCC risk were evaluated by the log-rank test. Results: The AUROCs of the 17 HCC models varied from 0.51 to 0.78 when using on-treatment scores from years 2.5 to 5. Models with a cirrhosis variable showed numerically higher AUROCs (pooled at 0.65–0.73 for treated, untreated, or mixed treatment models) than models without (treated or mixed models: 0.61–0.68; untreated models: 0.51–0.59). Stratification into low, intermediate, and high-risk levels using the original cutoff values could no longer reflect the true HCC incidence using scores after 3.5 years of AVT for models without cirrhosis and after 4 years of AVT for models with cirrhosis. Conclusions: The performance of existing HCC prediction models, especially models without the cirrhosis variable, decreased in CHB patients on long-term AVT. The optimization of existing models or the development of novel models for better HCC prediction during long-term AVT is warranted.
A Study of Consumers’ Purchase Intention on Biotech Health Products
ShiannMing Wu,Dongqiang Guo,Wen Tsann Lin,Meng Hua Li,Chih Long Lin 대한산업공학회 2015 대한산업공학회 추계학술대회논문집 Vol.2015 No.11
This study investigated consumers’ selection behaviors of biotech health foods, and constructed four correlational dimensions, namely “product knowledge”, “health concepts”, “consumer attitudes”, and “purchase intention” based on questionnaire survey. The results validated the six hypotheses regarding product knowledge and health concepts, consumer attitudes, purchase intention, health concepts and consumer attitudes, and consumer attitudes, as well as consumer attitudes and purchase intention.