An EU-E decision model and explanations of the certainty effect in prospect theory

Jiping Yang 인하대학교 정석물류통상연구원 2009 인하대학교 정석물류통상연구원 학술대회 Vol.2009 No.10

We proposed a measure of risk and a decision making model based on expected utility and entropy, which are called the EU-E measure of risk and the EU-E decision model in our previous studies. The EU-E measure of risk reflects an individual’s an individual’s intuitive attitude toward risk and can solve a kind of risky decision making problems. In this paper, we have further discussed the EU-E decision model. Using this decision model, the certainty effect in prospect theory can be interpreted in a reasonable way. we further demonstrate the reasonability of this model being as a descriptive or a normative decision model involving risk to some extent.

Coefficient of Earth Pressure at Rest of a Saturated Artificially Mixed Soil from Oedometer Tests

Jun-Jie Wang,Yang Yang,Jiping Bai,Jian-Yun Hao,Tian-Long Zhao 대한토목학회 2018 KSCE JOURNAL OF CIVIL ENGINEERING Vol.22 No.5

The present study focuses on the coefficient of earth pressure at rest (K0) of a saturated crushed binary soil mixture. The mixture isartificially mixed by crushed sandstone and mudstone particles according to presupposed weight ratios and particle size distributioncurves. The oedometer tests are performed to determine the coefficient K0. From test data, the values of coefficient K0, which rangefrom 0.242 to 0.381, with a mean value of 0.300, are obtained. Just as other mechanical parameters of soils, the K0 value is affectedby many factors. The effects of the properties of test specimen and material are discussed on the basis of the test data. Strong negativecorrelation between the values of K0 and initial dry bulk density of test specimen, one between the values of K0 and median particlesize diameter of test material, and one between the values of K0 and gravel content by weight of test material, respectively, areobserved from the test data. The mudstone particle content by weight of the mixture may also affect the value of K0. The effects ofthese factors on the K0 value may exhibit interlocking effect. Higher interlocking effect results in higher shear strength, and thereforeresults in lower K0 value.

Acupuncture treatment for Hashimoto's thyroiditis: An exploratory randomized controlled trial

Shanze Wang,Chao Yang,Weimei Zeng,Hongfang Tian,Shihao Du,Jiping Zhao 한국한의학연구원 2024 Integrative Medicine Research Vol.13 No.1

Background: Hashimoto's thyroiditis (HT) has a high incidence rate and unresolved clinical symptoms. Although Hand Yangming Meridian Penetrating Acupuncture has been used to treat thyroid diseases in China, there is no randomized controlled trial (RCT) on HT. Methods: This exploratory RCT aims to preliminarily evaluate the efficacy, safety, and feasibility of Hand Yangming Meridian Penetrating Acupuncture in the treatment of HT. Included subjects were randomly assigned to the acupuncture group and the waiting treatment group at a ratio of 1:1. Subjects in the acupuncture group received 16 weeks of acupuncture treatment, followed by a 16-week follow-up observation phase. Subjects in the waiting group received thyroxine supplementation for 16 weeks, followed by 16 weeks of compensation treatment. Serum thyroid peroxidase antibody (TPOab) and thyroglobulin antibody (TGab) levels were the main indicators, and Thyroid-Related Patient-Reported Outcome short form (ThyPRO-39), MOS Item Short Form Health Survey (SF-36), and Hospital Anxiety and Depression Scale (HADS) scores were also recorded. Results: In total, 58 subjects were included. After 16 weeks of treatment, there was no statistical difference in the changes in TPOab levels between the two groups, but the TGab level in the acupuncture group was significantly lower than in the waiting group (difference: −141.97 [95 % CI: −222.4 to −61.5], P = 0.011). Moreover, the total ThyPRO-39 and SF-36 scores were statistically different between the two groups (PThyPRO-39 < 0.001, PSF-36 = 0.005). There was no statistical difference in HADS between the two groups. Conclusions: Hand Yangming Meridian Penetrating Acupuncture may be safe and feasible for HT hypothyroidism to improve symptoms and reduce TGab levels. Trial registration number: This trial was registered at Acupuncture-Moxibustion Clinical Trial Registry: AMCTR-IOR-19000308 (ChiCTR1900026830, https://www.chictr.org.cn/searchprojEN.html).

Stability Analysis of High-order Proportional Delayed Cellular Neural Networks with D Operators

Xiaojin Guo,Chuangxia Huang,Zhichun Yang,Jiping Zhang,Jinde Cao 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.2

In this paper, we focus on a class of high-order proportional delayed cellular neural networks involving D operator. First of all, the existence on the positive equilibrium points of the addressed system is revealed by applying the Brouwer’s fixed point theorem. Secondly, by utilizing the differential inequality techniques, Lyapunov function method and the matrix spectral radius theory, the global exponential stability of the positive equilibrium point is established for the first time, which shows that all solutions of the addressed system are eventually positive. Finally, the validity and practicability of our results are illustrated by some numerical simulations. The obtained results extend and improve some existing ones.

A Path Planning Method for Unmanned Surface Vessels in Dynamic Environment

Jiabin Yu,Zhihao Chen,Zhiyao Zhao,Jiping Xu,Yang Lu 제어·로봇·시스템학회 2024 International Journal of Control, Automation, and Vol.22 No.4

A path planning method for unmanned surface vessels (USV) in dynamic environment is proposed to address the impact of dynamic environments on path planning results and the lack of dynamic obstacle avoidance capabilities. First, the considering ocean current rapidly exploring random tree (RRT*) (COC-RRT*) algorithm was proposed for global path planning. The RRT* algorithm has been enhanced with the integration of the virtual field sampling algorithm and ocean current constraint algorithm. The COC-RRT* algorithm optimizes the global planning path by adjusting the path between the parent nodes and child nodes. Second, according to the limitations of the International Regulations for Preventing Collisions at Sea (COLREGs), the improved dynamic window approach (DWA) is applied for local path planning. To enhance the ability of avoid dynamic obstacles, the dist function in the DWA algorithm has been improved. Simulation experiments were conducted in three scenarios to validate the proposed algorithm. The experimental results demonstrate that, in comparison with other algorithms, the proposed algorithm effectively avoids dynamic obstacles and mitigates the influence of the space-varying ocean current environment on the path-planning outcome. Additionally, the proposed algorithm exhibits high efficiency and robustness. The results verified the effectiveness of the proposed algorithm in dynamic environments.

Wrinkled rGO Sheets-Wrapped Carbon Fibers with High Tensile Strength and Excellent Electrochemical Stability as Anodes for Structural Li-Ion Battery

Huagen Li,Shubin Wang,Mengjie Feng,Jiping Yang,Boming Zhang 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2018 NANO Vol.13 No.08

Herein, we report a hierarchical structure formed by wrinkled reduced graphene oxide (rGO) sheets-wrapped carbon fiber via a facile and efficient electrostatic self-assembly method and subsequent annealing treatment. For this material, the Weibull scale parameter is 4.77 GPa. After 100 cycles, the rGO@CF retains 91% of its second charge capacity at 50mA· g -1, corresponding to a capacity fading of only 0.09% per cycle. Thus, this structural anode material exhibits enhanced capacity, high initial Coulombic efficiency and high tensile strength. Meanwhile, the carbon fiber and interweaved rGO sheets together form the whole conductive networks to provide multichannel highways for charge transfer (lithium-ion diffusion and electron transport) during discharge–charge processes, promising excellent electrochemical performance of this structural anode material.

Identification of Novel Subregions of LOH in Gastric Cancer and Analysis of the HIC1 and TOB1 Tumor Suppressor Genes in These Subregions

Jingcui Yu,Songbin Fu,Peng Liu,Xiaobo Cui,Yu Sui,Guohua Ji,Rongwei Guan,Donglin Sun,Wei Ji,Fangli Liu,An Liu,Yuzhen Zhao,Yang Yu,Yan Jin,Jing Bai,Jingshu Geng,Yingwei Xue,Jiping Qi,Ki-Young Lee 한국분자세포생물학회 2011 Molecules and cells Vol.32 No.1

Previously, we identified 3 overlapping regions showing loss of heterozygosity (LOH, R_1-R_3 from 11 to 30 cM) on chromosome 17 in 45 primary gastric cancers (GCs). The data indicated the presence of tumor suppressor genes (TSGs) on chromosome 17 involved in GC. Among the putative TSGs in these regions, HIC1 (in SR_1) and TOB1 (in SR_3) remain to be examined in GC. By immunohistochemistry (IHC), methylation-specific PCR (MSP) and western blot, we evaluated the expression and regulation status for HIC1 and TOB1 protein in GC. We narrowed down the deletion intervals on chromosome 17 and defined five smaller LOH subregions, SR_1-SR_5 (0.54 to 3.42 cM), in GC. We found that HIC1 had downregulated expression in 86% (91/106) and was methylated in 87% (26/30) of primary GCs. Of the primary GCs showing downregulation of HIC1 protein, 75% (18/24) had methylated HIC1 gene. TOB1 was either absent or expressed at reduced levels in 75% (73/97) of the GC samples. In addition, a general reduction was found in total and the ratio of unphosphorylated to phosphorylated TOB1 protein levels in the differentiated GC cell lines. Further analysis revealed significant simultaneous downregulation of both HIC1 and TOB1 protein in GC tissue microarray samples (67%, 52/78) and in primary GCs (65%, 11/17). These results indicate that silencing of HIC1 and TOB1 expression is a common occurrence in GC and may contribute to the development and progression of the disease.