Analysis on the Medieval Islamic Thought of Science : The Foundation of Modern Science Traditions in the Medieval Islamic World

Yang yuling 한국마음학회 2013 한국마음학회 학술대회논문집 Vol.2013 No.1

First of all, the rise of Islamic science should be attributed to its inherent thirst for knowledge, and the internal demands by means of building external knowledge platform, which promoted Islamic science to glory. Secondly, translation movement of the Islamic civilization which combined reason with realism, made a good preparation for the research of the traditional mathematics and the experiment research of modern science. Finally, the medieval Islamic science began to discover the world and people, which became the important premise of the renaissance. Therefore, the Islamic science prepared an important channel for input and output of modern scientific knowledge, and became the hub and bridge thought ancient and modern science. Although in the fifteenth Century Islamic science declined gradually, it did provide the necessary soil for the growth of the tree of modern science. The golden age of Arabic Islamic culture came in theAbbsid Dynasty (750A.D.- 1258A.D.), when the capital city Baghdad was a flourishing international city and an academic city blending cultures from all over the world. It was a place that gathered diversified cultural models and religious thoughts. When the Arabic culture evolved, which used the Arabic as the major language, it absorbed the essences of many other cultures that greatly enriched the connotations of Arabic Islamic culture, stimulated the wisdom of the Arabic people and laid a foundation for the Abbsid Empire to create the wonderful cultural achievements in its latter part that had far-reaching influence. The medieval Islamic world, by absorbing and merging the other cultures and thanks to the strong financial support given by a few generations of caliphs to scientific researches for the sake of their own development, the Islamic science possessed the necessary elements for prosperity. Besides, the brilliant achievements made by Islamic civilization in the medieval age also helped lay a solid foundation for the modern scientific development. The thesis tries to identify the inherent correlations between the medieval Islamic thought of science and the modern thought of science.

Special Lectures : Amanita in Korea

( Yang Sup Kim,Soon Ja Suck,Yong Hwan Park,Dong Yule Cha ) 한국균학회 1993 KOREA CHINA JOINT SEMINER Vol.- No.-

Creep Properties of a Nickel-Based Single Crystal Superalloy with Low Density

Yuling Du,Zihao Tan,Yanhong Yang,Xinguang Wang,Yizhou Zhou,Jingguo Li,Xiaofeng Sun 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.12

A novel nickel-based single crystal superalloy with low density had been designed and the creep deformation mechanismsof the experiment alloy under two conditions (1050 °C/200 MPa and 1100 °C/137 MPa) had been systematically discussed. The topological inversion had been observed after fracture under the above two conditions. The effects of temperature andstress on creep life of the experiment alloy had been found no significant difference under the two conditions. It was indicatedthat the small decrease in temperature exerted limited influence on the creep behaviors of single crystal superalloys in therange of high temperature.

Simple and green fabrication of a biomass-derived N and O self-doped hierarchical porous carbon via a self-activation route for supercapacitor application

Yang Binbin,Zhang Deyi,He Jingjing,Wang Yuling,Wang Kunjie,Li Hongxia,Wang Yi,Miao Lei,Ren Ruiye,Xie Mei 한국탄소학회 2020 Carbon Letters Vol.30 No.6

To meet the increased performance and cost requirements of commercial supercapacitor, a N and O self-doped hierarchical porous carbon is fabricated via a green and simple self-activation route utilizing leaves of wild hollyhock as raw materials. Comparing to commercial activated carbon, the reported material exhibits some marked merits, such as simple and green fabrication process, low cost, and superior capacitance performance. The specifc surface area of the obtained N and O co�doped hierarchical porous carbon arrives 954 m2 g−1, and the content of the self-doped nitrogen and oxygen reaches 2.64 at.% and 7.38 at.%, respectively. The specifc capacitance of the obtained material reaches 226 F g−1 while the specifc capacitance of the symmetric supercapacitor arrives 47.3 F g−1. Meanwhile, more than 90.3% of initial specifc capacitance is kept under a current density of 20 A g−1, and no arresting degradation is observed for capacitance after 5000 times cycle, perfectly demonstrating the excellent cycle and rate capability of the obtained material. The obtained N and O co-doped hierarchical porous carbon are expected to be an ideal substitution for commercial activated carbon.

Unequal Error Protection in Image Transmission Based on LDPC Codes

Yuling Zhang,Xia Li,Hongyong Yang 보안공학연구지원센터 2016 International Journal of Signal Processing, Image Vol.9 No.3

This paper investigates the performance of image transmission with unequal error protection (UEP) schemes based on irregular Low-Density Parity-Check (LDPC) codes. Firstly, the UEP is achieved by mapping different bits of the image bytes to different positions of LDPC codes, i.e. the more important bits in the image are mapped to the variable node with higher degrees in irregular LDPC codes, after the channel coding, we map the information bits into a power efficient QAM constellation and map the parity check bits into a spectral efficiency 16QAM constellation. Simulation results show that the UEP scheme is effective.

Reconstituted Fibril from Heterogenic Collagens-A New Method to Regulate Properties of Collagen Gels

Jian Yang,Haibo Wang,Lang He,Benmei Wei,Chengzhi Xu,Yuling Xu,Juntao Zhang,Sheng Li 한국고분자학회 2019 Macromolecular Research Vol.27 No.11

Heterotypic collagen fibril has long been found in the tissues of organisms, which plays an important role in the formation and function of complex structures of organisms. Inspiring by the phenomenon, scholars tried to incubate collagens from different sources into novel collagen materials in vitro, and the forming of heterogenic reconstituted collagen fibrils (RF) was often demonstrated by differential scanning calorimetry (DSC) and fluorescence quenching analysis. In this work, we used two type-I collagens from different species (bovine tendon and grasscarp fish skin) to coassemble in vitro, and verified the formation of RF from a new rheological perspective. In addition, we also investigated the assembly behavior, surface hydrophilicity and hydrophobicity, microscopic morphology and cell proliferation ability of the RF. The results showed that the assembly rate, surface properties, fibril size, viscoelastic properties of RF can be delicately regulated by the method of heterogenic collagen reconstitution. This study provides new experimental evidence for the reconstitution of heterogenic collagens, and also offers a new means for the regulation of collagen gel performance, which would help to expand the application range of collagen gel materials.

자녀를 영어유치원에 보내는 어머니들의 경험에 대한 연구

이율이(Yule Yi ),양성은(Sungeun Yang) 한국생활과학회 2009 한국생활과학회 학술대회 Vol.2009 No.하계

Hydrolytic performances of different organic compounds in different lignocellulosic biomass during anaerobic digestion

Haifeng Yang,Rui Deng,Junwei Jin,Yuling Wu,Xin Jiang,Jinhua Shi 대한환경공학회 2022 Environmental Engineering Research Vol.27 No.4

Hydrolytic performances of different organic compounds in lignocellulosic biomass (LB) during anaerobic digestion (AD) are worth investigating due to the complex and refractory structure of lignocellulose. This study aimed to clarify the hydrolytic performances of different lignocellulosic components (hemicellulose, cellulose and lignin) and other typical organics (saccharides, protein and lipid) in AD process. Furthermore, an in-depth study of different lignocellulosic components mono-/co-digestive performances, as well as their effects on digestive systems were also designed to explain the mechanism. Kinetic models were specially applied to evaluate the hydrolytic process and make comparison among different lignocellulosic components. Results showed that hemicellulose obtained high degradation ratio (77.2-85.0%) during anaerobic digestion, while cellulose was difficult to hydrolyze without sufficient acidity. And organics (saccharides, protein and lipid) were much easier to be hydrolyzed than lignocellulose. Results also depicted that lignocellulose addition could efficiently enhance the volatile solid (VS) removals of digestive systems, while lignin existing in systems reduced the VS removal. The limited hydrolysis of lignocellulose hindered the degradation of total VS in digester. It is quite important to obtain high bioenergy conversion, pretreatments, which can destroy the lignin wrapping in LBs digestion. This study could provide a reference for the AD of LBs.

Spring Convention - Observation of Basidiospores of Higher Fungi with Ornamentations by Electromicroscope

Kim, Yang Sup,Park, Yong Hwan,Cha, Dong Yule,Kim, Sam Soon 한국균학회 1982 韓國菌學會誌 Vol.10 No.2

The spore surface structure found in several families has proved to differ ultrastructurally from the surface observations as seen with the light microscope. In this paper authors report some species which collected in Korea and Japan in recent years investigated on the ultrastructural features of the basidio spores. Species were observed as follow: Boletellus emodensis, B. obscurecoceineus, B. russellii, B. hiratsukae, Strobilomyces confusus, Porphyrellus fusisporus, P. subvirens, P. gracitis, Heimiella japonica, Russula foetens, R. laurcceraci and R. senecis.

야생 식용버섯의 인공재배 검토

김양섭,박용환,차동열 한국균학회 1978 韓國菌學會誌 Vol.6 No.2

Present experiments were conducted to determine the possibility of cultivation of 9 edible wild species selected among the higher fungi growing in Korea. In the investigation on the mycelial growth according to the different media, the mycelial growth of Coprinus comatus was fast on the CSA medium, when malt extract was added to the basal medium PSA, the mycelisl of Iapista nuda and Auricularia auricula-judae was fast in growth and density. In the spawning, the mycelial growth of Pholiota squarrosa on the oak tree's sawdust, Pleurotus cornucopiae on the broad-leaves' sawdust, and Coprinus comatus on the compost was respectably fast and also it shown to be possibility of artificial cultivation owing to their carporphore budding when Coprinus comatus and Lepiota alborubescens cultivated on the rice straw, Auricularia auriculajudae and Pleurotus cornucopiae on the sawdust of the popla and Pholiota squarrosaon the sawdust of the oak tree.