Fixed-time Synchronization of Complex-valued Memristive BAM Neural Network and Applications in Image Encryption and Decryption

Yongzhen Guo,Yang Luo,Weiping Wang,Xiong Luo,Chao Ge,Jürgen Kurths,Manman Yuan,Yang Gao 제어·로봇·시스템학회 2020 International Journal of Control, Automation, and Vol.18 No.2

This paper focuses on the dynamical characteristics of complex-valued memristor-based BAM neural network (CVMBAMNN) with leakage time-varying delay. With two different controllers, we have obtained fixedtime and finite-time synchronization criteria respectively in complex domain for our special model, which few work has studied before. Since fixed-time synchronous system can improve communication security, we designed a scheme for RGB image encryption and decryption. In order to satisfy the requirement of much lower error in image secure communication, our approach can get the error of fixed-time synchronization to about 1×10−13. Due to our highly consistent system, we do get good encryption and decryption effect with encryption and decryption scheme. Finally, numerical simulations are included to demonstrate the correctness of our theoretical results.

Molecular Mechanism on Effect of Environmental Stress on Rice Allelopathy

J. Xiong,M. H. Wu,J. J . Zhou,L. H. Shen,H. B. He,W. X Lin 한국응용곤충학회 2005 한국응용곤충학회 학술대회논문집 Vol.2005 No.05

Integration of Genetic, Physical, and Cytogenetic Maps for <i>Brassica rapa</i> Chromosome A7

Xiong, Z.,Kim, J.S.,Pires, J.C. S. Karger AG 2010 CYTOGENETIC AND GEN0ME RESEARCH Vol.129 No.1

<P>Bacterial artificial chromosome (BAC) contigs have been genetically mapped to the 10 linkage groups of <I>Brassica rapa</I> by BAC end sequences (BES). To integrate the genetic, physical, and cytogenetic maps, fluorescence in situ hybridization (FISH) was used to anchor the assembly of BAC contigs onto <I>Brassica</I> chromosomes using representative BACs. This BAC-FISH approach can be used to identify chromosome arms on separate mitotic metaphase chromosomes or to map multiple BACs to single long pachytene chromosomes. As part of an international consortium that is sequencing the <I>B. rapa </I>genome, we integrated the linkage and physical maps with the <I>B. rapa</I> cytogenetic map for chromosome A7 by hybridizing BACs to mitotic chromosomes and along the length of pachytene chromosome spreads. A total of 31 BACs that were putatively located on A7 were used as probes for FISH analyses; however, only 19 BACs mapped unambiguously to A7 while the remaining BACs either mapped to other chromosomes or hybridized to multiple locations. We then created a multicolor FISH cocktail of 16 BAC probes to simultaneously hybridize the entire length of the A7 chromosome. We successfully applied the 16 A7 BAC probe mix to <I>B. rapa</I>, <I>B. oleracea, </I>and domesticated and resynthesized genotypes of <I>B. napus</I> to demonstrate that this approach can facilitate studies of genome evolution by integrating the genetic, physical, and cytogenetic maps among closely related species of <I>Brassica</I>.</P><P>Copyright © 2010 S. Karger AG, Basel</P>

New Evidences of Effect of Melanocortin-4 Receptor and Insulin-like Growth Factor 2 Genes on Fat Deposition and Carcass Traits in Different Pig Populations

Chen, J.F.,Xiong, Y.Z.,Zuo, B.,Zheng, R.,Li, F.E.,Lei, M.G.,Li, J.L.,Deng, C.Y.,Jiang, S.W. Asian Australasian Association of Animal Productio 2005 Animal Bioscience Vol.18 No.11

The Melanocortin-4 Receptor (MC4R) and Insulin-like Growth Factor 2 (IGF2) are two important candidate genes related to fat deposition and carcass traits. MC4R was found on study on human obesity and then was studied as candidate gene affecting food intake and fat deposition traits in mice and pigs. Insulin-like Growth Factor 2 (IGF2) gene plays an important role on tumor cell proliferation and muscle growth. It also affects fat traits and live weight in pigs. In this paper, MC4R and IGF2 were studied as two candidate genes associated with important economic traits such as fat deposition and carcass traits in five different pig populations. Taq I-PCR-RFLP and Bcn I-PCR-RFLP were respectively used to detect the polymorphism of genotypes of MC4R and IGF2 genes. Different MC4R genotype frequencies were observed in four populations. IGF2 genotype frequencies were also different in two populations. The results of association analysis show both MC4R and IGF2 genes were significantly associated with fat deposition and carcass traits in about 300 pigs. This work will add new evidence of MC4R and IGF2 affecting fat deposition and carcass traits in pigs and show that two genes can be used as important candidate genes for marker assistant selection (MAS) of growth and lean meat percentage in pigs.

Deletion of the Lmna Gene Induces Growth Delay and Serum Biochemical Changes in C57BL/6 Mice

Ruan, J.,Liu, X.G.,Zheng, H.L.,Li, J.B.,Xiong, X.D.,Zhang, C.L.,Luo, C.Y.,Zhou, Z.J.,Shi, Q.,Weng, Y.G. Asian Australasian Association of Animal Productio 2014 Animal Bioscience Vol.27 No.1

The A-type lamin deficient mouse line ($Lmna^{-/-}$) has become one of the most frequently used models for providing insights into many different aspects of A-type lamin function. To elucidate the function of Lmna in the growth and metabolism of mice, tissue growth and blood biochemistry were monitored in Lmna-deficient mice, heterozygous ($Lmna^{+/-}$) and wide-type ($Lmna^{+/+}$) backcrossed to C57BL/6 background. At 4 weeks after birth, the weight of various organs of the $Lmna^{-/-}$, $Lmna^{+/-}$ and $Lmna^{+/+}$ mice was measured. A panel of biochemical analyses consisting of 15 serological tests was examined. The results showed that Lmna deficient mice had significantly decreased body weight and increased the ratio of organ to body weight in most of tissues. Compared with $Lmna^{+/+}$ and $Lmna^{+/-}$ mice, $Lmna^{-/-}$ mice exhibited lower levels of ALP (alkaline phosphatase), Chol (cholesterol), CR (creatinine), GLU (glucose), HDL (high-density lipoprotein cholesterol) and higher levels of ALT (alanine aminotransferase) (p<0.05). $Lmna^{-/-}$ mice displayed higher AST (aspartate aminotransferase) values and lower LDL (lowdensity lipoprotein cholesterol), CK-MB (creatine kinase-MB) levels than $Lmna^{+/+}$ mice (p<0.05). There were no significant differences among the three groups of mice with respect to BUN (blood urea nitrogen), CK (creatine kinase), Cyc C (cystatin C), TP (total protein), TG (triacylglycerols) and UA (uric acid) levels (p>0.05). These changes of serological parameters may provide an experimental basis for the elucidation of Lmna gene functions.

cDNA Cloning and Polymorphism of the Porcine Carbonic Anhydrase III (CA3) Gene

Wu, J.,Deng, Changyan,Xiong, Y.Z.,Zhou, D.H.,Lei, M.G.,Zuo, B.,Li, F.E.,Wang, J. Asian Australasian Association of Animal Productio 2006 Animal Bioscience Vol.19 No.3

Carbonic anhydrase III (CA3) is a member of a multigene family that encode carbonic anhydrase isozymes. In this study, a complete coding sequence of the pig CA3 gene which encodes a 260 amino-acid protein was determined. The amino acid comparison showed high sequence similarities with previously identified human (86.5%) CA3 gene and mouse (91.5%) Car3 gene. The partial genomic DNA sequences were also investigated. The length of intron 1 was 727 bp. Comparative sequencing of three pig breeds revealed that there was a T${\rightarrow}$C substitution at position 363 within intron 1. The substitution was situated within a NcoI recognition site and was developed as a PCR-restriction fragment length polymorphism (RFLP) marker for further use in population variation investigations and association analysis. Two alleles (A and B) were identified, and 617 bp fragments were observed for the AA genotype and 236 bp and 381 bp fragments for the BB genotype. The polymorphism of CA3 was detected in 8 pig breeds. Allele B was predominant in the Western pig breeds. In addition, association studies of the CA3 polymorphism with carcass traits in 140 $Yorkshire{\times}Meishan$ $F_2$ offspring showed that the NcoI PCR- RFLP genotype may be associated with variation in several carcass traits of interest for pig breeding. Allele B was associated with increases in lean meat percentage, loin eye height and loin eye area. Statistically significant association with backfat thickness was also found; pigs with the AB genotype had much less backfat thickness than AA or BB genotypes.

New Evidence of Alleles (V199I and G52S) at the PRKAG3 (RN) Locus Affecting Pork Meat Quality

Chen, J.F.,Dai, L.H.,Peng, J.,Li, J.L.,Zheng, R.,Zuo, B.,Li, F.E.,Liu, M.,Yue, K.,Lei, M.G.,Xiong, Y.Z.,Deng, C.Y.,Jiang, S.W. Asian Australasian Association of Animal Productio 2008 Animal Bioscience Vol.21 No.4

The porcine PRKAG3 (RN) gene encodes the regulatory gamma subunit of adenosine monophosphate-activated protein kinase (AMPK), which is a good candidate gene affecting meat quality. In this study, the effects of two missense mutations A595G (Ile199Val) and G154A (Gly52Ser) in porcine PRKAG3 gene on meat quality traits were studied in M. Longissimus dorsi (LD), M. Semispinalis capitis (SC) and M. Biceps femoris (BF) from different populations of 326 pigs. The PRKAG3 alleles 199I, 199IV, 52S and 52G were identified with PCR-RFLPs and all genotypes - 199I/199I, 199I/199V, 199V/199V, 52S/52S, 52S/52G and 52G/52G - were found. The frequency of V allele was larger than that of I allele in all populations. I allele frequency was zero in Chinese Meishan pigs (population D) especially. G allele frequency was larger than that of S allele in all populations except Large White (population A). Both variations at the PRKAG3 locus significantly affected these meat quality traits. The pork meat quality has not previously been established in Meishan or crosses thereof. The results suggested that generally pH of LD, SC and BF was higher in Meishan pigs than that in other populations. Moreover, Meishan pigs showed higher water-holding capacity and intramuscular fat (IMF), lower water content and water loss percentage compared to other populations in terms of the two variations. The results present here supply new evidence that alleles V199I and G52S at the PRKAG3 locus affect pork meat quality and provide useful information on pork production.

Design of High Strength Concrete Filled Tubular Columns For Tall Buildings

Liew, J.Y. Richard,Xiong, M.X.,Xiong, D.X. Council on Tall Building and Urban Habitat Korea 2014 International journal of high-rise buildings Vol.3 No.3

Ultra-high strength concrete and high tensile steel are becoming very attractive materials for high-rise buildings because of the need to reduce member size and structural self-weight. However, limited test data and design guidelines are available to support the applications of high strength materials for building constructions. This paper presents significant findings from comprehensive experimental investigations on the behaviour of tubular columns in-filled with ultra-high strength concrete at ambient and elevated temperatures. A series of tests was conducted to investigate the basic mechanical properties of the high strength materials, and structural behaviour of stub columns under concentric compression, beams under moment and slender beam-columns under concentric and eccentric compression. High tensile steel with yield strength up to 780 MPa and ultra-high strength concrete with compressive cylinder strength up to 180 MPa were used to construct the test specimens. The test results were compared with the predictions using a modified Eurocode 4 approach. In addition, more than 2000 test data samples collected from literature on concrete filled steel tubes with normal and high strength materials were also analysed to formulate the design guide for implementation in practice.

Remote carrier trapping in FinFETs with ONO buried layer: Temperature effects

Chang, S.J.,Bawedin, M.,Xiong, W.,Lee, J.H.,Lee, J.H.,Cristoloveanu, S. Pergamon Press 2013 Microelectronics and reliability Vol.53 No.3

The charge trapping mechanisms are studied at room and high temperature in advanced SOI FinFETs fabricated on SiO<SUB>2</SUB>-Si<SUB>3</SUB>N<SUB>4</SUB>-SiO<SUB>2</SUB> (ONO) multi-layer buried insulator (BOX). By applying appropriate back-gate and/or drain bias, the buried nitride layer can trap charges. The coupling mechanism between front and back interfaces enables the front-channel drain current to reflect the presence or absence of trapped/injected charges in the BOX. In this work, the charge trapping/detrapping is induced by a constant drain or back-gate bias or during the scanning of the back-gate voltage. According to the polarity of the trapped charges and their location along the channel, various current levels are observed leading to a memory effect. In order to clarify the charge trapping and coupling mechanisms, the temperature of operation was used as additional experimental parameter. The amount of trapped charges depends not only on the bias conditions but also on temperature and fin geometry. We discuss the 3D coupling effects between the channel and the remote trapped charges.

Sequencing, Genomic Structure, Chromosomal Mapping and Association Study of the Porcine ADAMTS1 Gene with Litter Size

Yue, K.,Peng, J.,Zheng, R.,Li, J.L.,Chen, J.F.,Li, F.E.,Dai, L.H.,Ding, SH.H.,Guo, W.H.,Xu, N.Y.,Xiong, Y.ZH.,Jiang, S.W. Asian Australasian Association of Animal Productio 2008 Animal Bioscience Vol.21 No.7

A disintegrin-like and metalloprotease (reprolysin type) with thrombospondin type 1 motif (ADAMTS1) plays a critical role in follicular rupture and represents a major advance in the proteolytic events that control ovulation. In this study, a 9,026-bp DNA sequence containing the full coding region, all 8 introns and part of the 5'and 3' untranslated region of the porcine ADAMTS1 gene was obtained. Analysis of the ADAMTS1 gene using the porcine radiation hybrid panel indicated that pig ADAMTS1 is closely linkage with microsatellite marker S0215, located on SSC13q49. The open reading frame of its cDNA covered 2,844 bp and encoded 947 amino acids. The coding region of porcine ADAMTS1 as determined by sequence alignments shared 85% and 81% identity with human and mouse cDNAs, respectively. The deduced protein contained 947 amino acids showing 85% sequence similarity both to the human and mouse proteins, respectively. Comparative sequencing of three pig breeds revealed one single nucleotide polymorphism (SNP) within exon 7 of which a G-C substitution at position 6006 changes a codon for arginine into a codon for proline. The substitution was situated within a PvuII recognition site and developed as a PCR-RFLP marker for further use in population variation investigations and association analysis with litter size. Allele frequencies of this SNP were investigated in seven pig breeds/lines. An association analysis in a new Qingping female line suggested that different ADAMTS1 genotypes have significant differences in litter size (p<0.01).