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COMMON STATIONARY POINTS OF MULTI-VALUED F-CONTRACTIONS WITH δ-DISTANCE
Liu1 Zeqing,Liu Ying,Kang Shin Min 경남대학교 수학교육과 2019 Nonlinear Functional Analysis and Applications Vol.24 No.1
Three common stationary point theorems for some multi-valued F-contractions with δ-distance in bounded complete metric spaces are proved. The results obtained in this paper are extended or are different from several results in the literature. Three nontrivial examples are given.
Study on the Thermal Decomposition of Waste Polystyrene in Motor Oil Using Microwave Energy
Liu, Xiao Yun,Kang, Tae Won 公州大學校 工學硏究院 生産技術硏究所 2003 論文集 Vol.11 No.-
A novel microwave-induced pyrolysis of waste polystyrene in motor oil was performed in quartz tube reactor. Different pyrolysis conditions were investigated, such as time range from 30 minutes to 1 hour and effective microwave power range from 180 to 250 watt. The distillate components were analyzed with GC-MS, and styrene, 1-methyl styrene, toluene, ethyl benzene were the four main products. Among these distillate products, styrene took over 70 percentages. Temperature of pyrolysis suing microwave was much lower than that of conventional thermal pyrolysis method.
Yali Zhao,Zeqing Liu,Shin Min Kang,Zunquan Xia 한국전산응용수학회 2005 Journal of applied mathematics & informatics Vol.17 No.1-2
In this paper, we introduce and study a class of general strongly nonlinear quasivariational inequalities in Hilbert spaces. We prove the existence and uniqueness of solution and convergence of the perturbed the three-step iterative sequences with errors for this kind of general strongly nonlinear quasivariational inquality problems involving relaxed Lipschitz, relaxed monotone, and strongly monotone mappings. Our results extend, improve, and unify many known results due to Liu-Ume-Kang, Kim-Kyung, Zeng and others
ZHAO, YALI,XIA, ZUNQUAN,LIU, ZEQING,KANG, SHIN MIN 한국전산응용수학회 2005 Journal of applied mathematics & informatics Vol.17 No.1
In this paper, we introduce and study a class of general strongly nonlinear quasivariational inequalities in Hilbert spaces. We prove the existence and uniqueness of solution and convergence of the perturbed the three-step iterative sequences with errors for this kind of general strongly nonlinear quasivariational inquality problems involving relaxed Lipschitz, relaxed monotone, and strongly monotone mappings. Our results extend, improve, and unify many known results due to Liu-Ume-Kang, Kim-Kyung, Zeng and others.
Liu, Wen Chao Liu, Jung Sun Kang and In Ho Ki Chao,Kang, Jung Sun,Kim, In Ho Agricultural Research Communication Center 2018 Indian Journal of Animal Research Vol.52 No.-
<P>A total of 60 weaned pigs with initial body weight (BW) of 8.51 ± 0.42 kg (28 d of age) were randomly divided into 2 groups of 30 each consisted of 6 pens with 2 gilts and 3 borrows and supplemented (treatment) 5.3×108 cfu/kg Lactobacillus plantarum GB805 in addition to basal diet offered during d 0 to 14 and d 15 to 42 (control). During the total trial period or different phases of trial, pigs fed L. plantarum diet had a higher (P less than 0.05) ADG, ADFI and feed efficiency. At the end of experiment, dietary L. plantarum supplementation improved (P less than 0.05) the apparent total tract digestibility of dry matter, nitrogen and the fecal Lactobacillus populations (P less than 0.05) while the fecal E.coli populations were decreased (P less than 0.05). In conclusion, dietary supplementation of L. plantarum GB805 had positive influence on growth rate, nutrient digestibility and gut microbial balance and its supplementation recommended to weaning pigs.</P>
Li Liu,Min-Young Kang,Jin-Ho Kang,Yeong Deuk Jo,Sota Koeda,Munetaka Hosokawa,Doil Choi,Byoung-Cheorl Kang 한국육종학회 2015 한국육종학회 심포지엄 Vol.2015 No.07
sy-2 (Seychelles-2) is a temperature sensitive natural mutant of Capsicum chinense and native to Seychelles Island in Africa. Previously we showed that sy-2 leaves were irregularly shaped and defective in chlorophyll development at temperatures below 24℃. A segregation test revealed that the sy-2 gene is controlled by a single recessive gene. To identify the sy-2 gene, we performed a map-based cloning approach using a total 600 individual F2 plants derived from crossing sy-2 and the wild type C. chinense ‘No.3341’. Fine-mapping of the locus allowed us to position sy-2 to an approximately 170-kb region flanked by markers IN2-1-1 and SNP-3-7 on chromosome 1. Among the approximately 36 hypothetical genes in this region several candidate genes including: HSP90-like ATPase family proteins, lipid-transfer proteins, calmodulin-domain protein kinases, and zinc finger proteins (ZFPs) were identified. RT-PCR and sequencing of the hypothetical genes are under way to identify sy-2.
Analysis of Artistic Attributes of Ansel . Adams’ “Area Exposure Method”
( Liu Kang ) 인문사회과학예술융합학회 2021 인문사회과학예술융합학회지 Vol.5 No.1
The "area exposure method" fou15nded by Ansel. Adams, many people think that this theory is just a method or technique, and ignores its artistic connotation. In essence, it is an exposure system that Adams can correct the light and shade in order to "correctly" express nature. It is inspired by the visual thinking and digital logic from music. It has the "expression" meaning of modern art and is related to "accurate" exposure. An art form of concrete difference. Adams’s musical structure and digital logic’s materialization in its visual form not only exemplifies the ancient Greek aesthetics’ concept of “number” as the universe, but also integrates the musical image’s digital components of musical scales. The creation of imagery and logical thinking in photographic art The combination of, gives a new enlightenment.
Liu Ya Qi,Nam Sook Park,Han Seok Kang,Seon Ku Kim,Yong Gyun Kim,Byung Uuk Cho,Teak Soon Shin,Keun Ki Kim,Hyun Chul Park,Hong Joo Son,Hong Gu Lee,Sang Mong Lee 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.05
The genomic structure and phylogenetic relationships of HSP88 genes from P. tenuipes Jocheon-1, P. tenuipes, C. militaris and C. pruinosa are described. The HSP88 genomic DNA from P. tenuipes Jocheon-1, P. tenuipes and C. militaris all contain 5 introns and 6 exons with the length of 13, 62, 32, 1438, 306, 288 bp, encoding 713 amino acid residues. C. pruinosa HSP88 genomic DNA contains 4 introns and 5 exons encoding 713 amino acids. The length of each exon of C. pruinosa HSP88 is 13, 62, 32, 1744, 288 bp and the length of exon 4 is identical to the total length of exon 4 and exon 5 of HSP88 of P. tenuipes Jochoen-1, P. tenuipes, and C. militaris. The deduced amino acid sequence of P. tenuipes Jocheon-1 HSP88 showed 99% identity with the P. tenuipes, 97% identity with the Cordyceps militaris, and 98% identity with the C. pruinosa. Phylogenetic analysis confirmed that the P. tenuipes Jocheon-1, P. tenuipes, C. militaris and C. pruinosa HSP88 are placed together within the ascomycetes group of fungal clade.
SOME EXISTENCE THEOREMS FOR FUNCTIONAL EQUATIONS ARISING IN DYNAMIC PROGRAMMING
LIU ZEQING,UME JEONG SHEOK,KANG SHIN MIN Korean Mathematical Society 2006 대한수학회지 Vol.43 No.1
The existence, uniqueness and iterative approximation of solutions for a few classes of functional equations arising in dynamic programming of multistage decision processes are discussed. The results presented in this paper extend, improve and unify the results due to Bellman [2, 3], Bhakta-Choudhury [6], Bhakta-Mitra [7], and Liu [12].
Kang-Lin Liu,Rui-Jin Liao,Xue-Tong Zhao 대한전기학회 2015 Journal of Electrical Engineering & Technology Vol.10 No.4
In order to explore the characteristics of electrons in DC negative corona discharge, an improved plasma chemical model is presented for the simulation of bar-plate DC corona discharge in dry air. The model is based on plasma hydrodynamics and chemical models in which 12 species are considered. In addition, the photoionization and secondary electron emission effect are also incorporated within the model as well. Based on this model, electron mean energy distribution (EMED), electron density distribution (EDD), generation and dissipation rates of electron at 6 typical time points during a pulse are discussed emphatically. The obtained results show that, the maximum of electron mean energy (EME) appears in field ionization layer which moves towards the anode as time progresses, and its value decreases gradually. Within a pulse process, the electron density (ED) in cathode sheath almost keeps 0, and the maximum of ED appears in the outer layer of the cathode sheath. Among all reactions, R1 and R2 are regarded as the main process of electron proliferation, and R22 plays a dominant role in the dissipation process of electron. The obtained results will provide valuable insights to the physical mechanism of negative corona discharge in air.