A Case of Benign Atrophic Papulosis in a Young Male

Lingyi Lu,Bingjiang Lin,Ru Dai,Xin Fan,Yingzhe Yu,Ying Qi,Xiaoxia Zhu,Ping Zhou 대한피부과학회 2022 Annals of Dermatology Vol.34 No.4

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A Phase Model of Earthquake Motions based on Stochastic Differential Equation

Cong Zhang,Tadanobu Sato,Lingyi Lu 대한토목학회 2011 KSCE JOURNAL OF CIVIL ENGINEERING Vol.15 No.1

In this paper, a method is proposed to simulate Group Delay Time (GDT) of earthquake ground motion by using Stochastic Differential Equation (SDE). The random characteristic of GDT is expressed by a stochastic differential equation whose mean and variance processes are defined by ordinary differential equations. An algorithm is developed to identify the coefficients of the ordinary differential equations. Regression surfaces of the coefficients are developed as functions of earthquake magnitude,epicentral distance and frequency. The Milstein approximation scheme is used to solve the stochastic differential equation of GDT. The efficiency of the developed method is demonstrated by comparing the simulated result with the original one.

Research on Determining Resource Utilization Rates of Regional Construction and Demolition Waste from the Perspective of Collaborative Governance

Ling Shen,Zhaokun Zhang,Lingyi Tang 대한토목학회 2023 KSCE Journal of Civil Engineering Vol.27 No.1

How to achieve diversified and cooperative management of construction and demolition waste (C&DW) has always been a difficult problem for the government and the public. To achieve collaborative governance, it is necessary to coordinate the conflicting interests among multiple subjects and reasonably determine the collaborative goals. This study aims to illustrate the necessity and feasibility of collaborative governance, determine the phased resource utilization rate target from the perspective of balance of interests, and design a dynamic adjustment mechanism for local government's collaborative governance target, regional C&DW resource utilization rate and rewards and punishments from a quantitative perspective. From the perspective of maximizing social benefits and balancing the interests shared by three stakeholders: construction and demolition enterprises, waste resource treatment enterprises and the government, the system dynamics (SD) and multi-objective planning (MOP) coupling model (SD-MOP) are constructed. The MOP model is used to solve the optimal solution that satisfactory to all parties, and the SD model simulates the internal and external environmental changes of the C&DW management system under the optimal solution to provide dynamic parameters for the MOP model. This paper takes Jiangbei New Area in Nanjing, China as an example to verify the validity of the proposed SD-MOP model. The calculation results show that the three stakeholders with relevant interests can achieve a win-win situation by integrating resources and optimizing resource allocation, while promoting the goal of collaborative governance, that is, improving the utilization rate of C&DW resource utilization. In addition, the model also gives the specific time for the establishment and realization of the phased target of resource utilization in Nanjing Jiangbei New Area, with resource utilization rate targets of 75%, 79% and 84% in 2024, 2029 and 2036, respectively.

STILL STABLE KOREAN-TYPE SOCIALISM

ZHOU JIANMING,WANG LINGYI 통일연구원 1996 International journal of korean unification studie Vol.5 No.-

基于微信小程序的泰语词汇记忆平台设计与实现

张俊(Jun Zhang),赵玲艺(Lingyi Zhao) YIXIN 출판사 2023 教育教学研究论丛 Vol.1 No.3

Highly efficient separation of uranium from wastewater by in situ synthesized hydroxyapatite modified coal fly ash composite aerogel

Siqi Huang,Congcong Chen,Zhibo Zhao,Lingyi Jia,Yong Zhang 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.118 No.-

In this work, hydroxyapatite (HAP) was in situ synthesized on coal fly ash (CFA) to prepare hydroxyapatitemodified coal fly ash composite aerogel (HCFAA). The maximum removal efficiency and capabilityof uranium(VI) on HCFAA were 97.6 % and 205.7 mg g1, respectively, which was much higher than thoseof CFA (83.6 % and 59.1 mg g1) (pH = 3.0, m/V = 1.0 g/L and T = 298 K). The desorption efficiency of uranium(VI) by HCFAA was even more than 80 % after five cycles, demonstrating that the introduction ofHAP had improved uranium(VI) removal performances. Pseudo-second-order and Langmuir models werefitted better with the experimental data, indicating the uranium(VI) removal process was a homogeneousmonolayer chemisorption. Meanwhile, the uranium(VI) removal efficiency for HCFAA in actual wastewaterwas higher to 80.6 % and uranium(VI) could even be completely separated from actual wastewaterby HCFAA during dynamic adsorption (m = 50 mg, V = 400 mL, C0 = 10 mg/L), further illustrating that theintroduction of HAP was an available method to modify CFA. Characterizations results demonstrated thaturanium(VI) was successfully immobilized on HCFAA through ion exchange, dissolution-precipitationand surface complexation. In conclusion, HCFAA was a prospective adsorbent for uranium(VI) separationin practical application.

Numerical simulation of infill CACB wall cracking subjected to wind loads

Ruige Li,Yu Gao,Hongjian Lin,Mingfeng Huang,Chenghui Wang,Zhongzhi Hu,Lingyi Jin 국제구조공학회 2024 Structural Engineering and Mechanics, An Int'l Jou Vol.89 No.5

The cracking mechanism in ceramsite aerated concrete block (CACB) infill walls were studied in low seismic fortification intensity coastal areas with frequent occurrence of typhoons. The inter-story drifts of an eight-story residential building under wind loads and a seismic fortification intensity of six degrees were analyzed by using the PKPM software. The maximum inter-story drift ratio of the structure in wind load was found to be comparable to that under the seismic fortification intensity of six degrees. However, when accounting for the large gust wind speed of typhoon, the maximum inter-story drift ratio was much larger than that obtained under reference wind load. In addition, the finite element models of RC frames were employed by displacement loading to simulate two scenarios with and without window hole in the CACB infill walls, respectively. The simulation results show no signs of cracking in both the infill walls with window hole and those without window for the inter-story drift caused by seismic loads and the reference wind load. However, both types of infill walls experienced structural creaking when assessing the gust wind pressure recorded from previous typhoon monitoring. It is concluded that an underestimate of wind loads may contribute substantially to the cracking of frame CACB infill walls in low seismic fortification intensity coastal areas. Consequently, it is imperative to adopt wind pressure values derived from gust wind speeds in the design of CACB infill walls within frame structures. Finally, the future research directions of avoiding cracks in CACB filled walls were proposed. They were the material performance improving and building structure optimizing.

GPU-ACCELERATED SPECKLE MASKING RECONSTRUCTION ALGORITHM FOR HIGH-RESOLUTION SOLAR IMAGES

Yanfang Zheng,Xuebao Li,Huifeng Tian,Qiliang Zhang,Chong Su,Lingyi Shi,Ta Zhou 한국천문학회 2018 Journal of The Korean Astronomical Society Vol.51 No.3

The near real-time speckle masking reconstruction technique has been developed to accelerate the processing of solar images to achieve high resolutions for ground-based solar telescopes. However, the reconstruction of solar subimages in such a speckle reconstruction is very time-consuming. We design and implement a new parallel speckle masking reconstruction algorithm based on the Compute Unified Device Architecture (CUDA) on General Purpose Graphics Processing Units (GPGPU). Tests are performed to validate the correctness of our program on NVIDIA GPGPU. Details of several parallel reconstruction steps are presented, and the parallel implementation between various modules shows a significant speed increase compared to the previous serial implementations. In addition, we present a comparison of runtimes across serial programs, the OpenMP-based method, and the new parallel method. The new parallel method shows a clear advantage for large scale data processing, and a speedup of around 9 to 10 is achieved in reconstructing one solar subimage of 256$\times$256 pixels. The speedup performance of the new parallel method exceeds that of OpenMP-based method overall. We conclude that the new parallel method would be of value, and contribute to real-time reconstruction of an entire solar image.

Protective Effects of Gypenosides against Fatty Liver Disease Induced by High Fat and Cholesterol Diet and Alcohol in Rats

Renan Qin,Hong Nie,Jianyu Zhang,Chuyuan Li,Xiaoqi Zhang,Aihua Xiong,Feng Huang,Zhen Yin,Kongyan Li,Wenyu Qin,Mingzhen Chen,Shubing Zhang,Lingyi Liang,Huiye Zhang,Wencai Ye 대한약학회 2012 Archives of Pharmacal Research Vol.35 No.7

In the present study, the protective effects of gypenosides from Gynostemma pentaphyllum on fatty liver disease (FLD) were examined in rats treated with high fat and cholesterol diet and alcohol. Male SD rats were divided into seven groups: control, model, lovastatin, silymarin, gypenosides high-, medium- and low-treatment groups. The latter 6 groups were fed high-fat and cholesterol diet and administered alcohol intragastricly once a day. Body weight was measured every week for 10 weeks, and the hepatic index was measured after 10 weeks. Compared with model group, levels of serum triglyceride (TG), total cholesterol (TC), free fatty acid (FFA), and low density lipoprotein cholesterol (LDL-C) level, malondialdehyde (MDA), serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activity, and hepatocyte apoptosis were significantly decreased in gypenosides groups; while serum high density lipoprotein cholesterol (HDL-C), superoxide dismutase (SOD) activity in both serum and hepatic tissue and mRNA and protein level of peroxisome proliferator-activated receptor α (PPAR-α) were significantly increased. Moreover, hepatic steatosis and mitochondrial damage were improved. These results suggested that gypenosides could prevent liver fatty degeneration in fatty liver disease through modulating lipid metabolism, ameliorating liver dysfunction and reducing oxidative stress.