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An Improved Simultaneous-Revelation Resolution Procedure that Induces Truthfulness  [PDF]
Linlan Zhang, Chunmei Wu, Zhongyan Wang, Zefang Li
Journal of Service Science and Management (JSSM) , 2009, DOI: 10.4236/jssm.2009.22012
Abstract: Alternating-offer bargaining protocol is the most predominant way for solving bilateral bargaining problem in daily life. However, alternating-offer consumed more time and caused a lower efficiency in some cases. One proposed solution is called simultaneous-revelation resolution by which both parties reveal their reservation prices at the same time. But most simultaneous-revelation resolution procedures are inefficient because they encourage exaggerations. But it is fast and uncomplicated, this resolution procedure still has merit—especially if the parties can refrain from undue exaggera-tion. The paper designs a truthful mechanism for simultaneous-offer bargaining negotiation. In this mechanism, a rule manipulator can induce buyer and seller both to reveal their real prices by introducing suitable adjustment functions. And we show the honest revelations are in Nash equilibrium.
Preparation of Silica Powder in Epoxy Resin Wear-Resistant Coating  [PDF]
Dongdong Zhang, Jihu Wang, Shaoguo Wen, Pengzhu Wang, Changle Yin, Zhongyan Du
Advances in Materials Physics and Chemistry (AMPC) , 2015, DOI: 10.4236/ampc.2015.52009
Abstract: Silicon powders possess good thermal stability and rub resistance and can be used as the filler of high temperature wear-resistant coating; it can possess good wettability and dispersibility in the organic polymer by surface modification of silane coupling agent. Organic silicon has good thermal stability, which can modify the frangibility and thermal stability of epoxy resin. A certain proportion of modified silica powder, curing agent and additives were dispersed to modified epoxy resin can compound wear-resistant coating. The results show that: the modification effect can be the best if the dosage of silane coupling agent is 1.5% of silicon powder. If the methyl triethoxy silane is 50 phr and modified silica powder is 200 phr, then various performances of coating tend to be the best.
Study on the Properties of UHMW-PE Film  [PDF]
Zhongyan Du, Jihu Wang, Shaoguo Wen, Pengzhu Wang, Dongdong Zhang, Changle Yin
Advances in Materials Physics and Chemistry (AMPC) , 2015, DOI: 10.4236/ampc.2015.58033
Abstract: Some physicochemical properties of UHMW-PE film such as gas permeability, tensile strength, and corrosion resistance in acid with different immersion time, various concentrations and various solutions and rattler testing were studied. The obtained results showed that the values of gas permeability, tensile strength, elongation at break, and the temperature of dissociation at weight loss 5% was 546.57 cm3·m﹣2·24 h·0.1 MPa, 37.22 MPa, 368.00%, 360°C, respectively. In different concentration acid, the surface resistance of film accumulated to some extent with immersion time increasing, together with that the higher acid concentration was, the lower the surface resistance of film was. Moreover, the contact angle of films gradually increased with the acid concentration decreasing and the increase of immersion time. After wear testing, the mass of UHMW-PE film did not nearly change, while the contact angle became larger with the number of turning increasing and the value was more than 90°.
The Review of Powder Coatings  [PDF]
Zhongyan Du, Shaoguo Wen, Jihu Wang, Changle Yin, Dayang Yu, Jian Luo
Journal of Materials Science and Chemical Engineering (MSCE) , 2016, DOI: 10.4236/msce.2016.43007
Abstract: With the environmental regulations becoming more stringent and awareness of consumers increasing to protect environment, an urgent problem is to reduce the use of volatile organic compounds (VOCs). Powder coating is a kind of solid powder coating without any solvent. Due to its excellent application performance and environment-friendly, it is widely used in the field of metal coating, especially appliances of offices and home. In recent years, the use of powder coatings has been developed very fast and the requirements of functional powder coatings are also gradually strengthened. According to resin of the film forming, powder coatings can be divided into two types: thermosetting powder coatings and thermoplastic powder coatings. Each kind of powder coatings has its own advantages and disadvantages, and they will be applied in different fields. In order to improve the properties of powder coatings, there are many reports and studies about them. The compositions of powder coatings were extruded, crushed and screened to gain powder of coating. The powder always was stored at room temperature. The powder coatings often operated by two kinds which were electrostatic spraying method and fluidized bed dipping method. After that, the powder was heated to melt and cure. Finally, a smooth bright permanent film on articles was formed to achieve the purpose of decoration and corrosion. The process flow preparation of powder coatings always separated into dry process production and wet process production. The development courses of powder coatings about resins, pigments and fillers are summarized. The future development trends of powder coatings are illustrated.
Super Congruences Involving Alternating Harmonic Sums  [PDF]
Zhongyan Shen, Tianxin Cai
Advances in Pure Mathematics (APM) , 2020, DOI: 10.4236/apm.2020.1010037
Abstract: Let p be an odd prime, the harmonic congruence such as \"\", and many different variations and generalizations have been studied intensively. In this note, we consider the congruences involving the combination of alternating harmonic sums, \"\"？where PP denotes the set of positive integers which are prime to p. And we establish the combinational congruences involving alternating harmonic sums for positive integer n=3,4,5.
The Odd Solutions of Equations Involving Euler-Like Function  [PDF]
Jiaxin Wu, Zhongyan Shen
Advances in Pure Mathematics (APM) , 2021, DOI: 10.4236/apm.2021.115030
Abstract: φe(n) is a function similar to Euler function φ(n). We discussed and obtained all the odd solutions of the equations φe(xy) = φe(x) + 2φe(y), φe(xy)？= 2φe(x)？+？3φe(y)？and φe(xyz)？= φe(x
Expression profile analysis of the inflammatory response regulated by hepatocyte nuclear factor 4α
Zhongyan Wang, Eric P Bishop, Peter A Burke
BMC Genomics , 2011, DOI: 10.1186/1471-2164-12-128
Abstract: The expression of over five thousand genes in HepG2 cells is significantly changed with the dramatic reduction of HNF4α concentration compared to the cells with native levels of HNF4α. Over two thirds (71%) of genes that exhibit differential expression in response to cytokine treatment also reveal differential expression in response to HNF4α knock-down. In addition, we found that a number of HNF4α target genes may be indirectly mediated by an ETS-domain transcription factor ELK1, a nuclear target of mitogen-activated protein kinase (MAPK).The results indicate that HNF4α has an extensive impact on the regulation of a large number of the liver-specific genes. HNF4α may play a role in regulating the cytokine-induced inflammatory response. This study presents a novel function for HNF4α, acting not only as a global player in many cellular processes, but also as one of the components of inflammatory response in the liver.Hepatocyte nuclear factor 4α (HNF4α) is a highly conserved member of the nuclear receptor superfamily. It is highly expressed in liver, kidney, intestine, and pancreas in mammals. The active form of HNF4α is a homodimer which recognizes a direct repeat (DR) of the AGGTCA motif separated by 1 nucleotide (DR1) as a binding site. HNF4α exerts direct transcriptional effects on target genes, and it also works indirectly via the positive regulation and negative regulation of other liver-enriched transcription factors, each of which regulates numerous downstream targets [1,2]. In contrast to the liver-enriched transcription factors HNF1α, HNF3α, HNF6, and CAAT/enhancer-binding protein (C/EBP)α, which when disrupted in the mouse genome the mice are viable but show specific effects on hepatocyte differentiation, metabolic function, and gene expression [3-6], disruption of the mouse HNF4a gene is embryonic lethal [7]. Studies with HNF4α deficient mice [8] have established the critical role of this factor in regulating diverse liver functions, including glucose, fat
Cloning, sequencing and function ofsanB, a gene related to nikkomycin biosynthesis ofStreptomyces ansochromogenes
Wenli Li,Junyong Jia,Huarong Tan,Yongsong Hu,Zhongyan Wang
Chinese Science Bulletin , 2000, DOI: 10.1007/BF02886321
Abstract: A 6.0 kb DNA fragment related to nikkomycin biosynthesis was cloned from nikkomycin-producingStreptomyces ansochromogenes 7100. Sequence analysis showed that the 1.9 kbTth111 I fragment, a part of the 6.0 kb DNA fragment, contains one complete ORF designatedsanB (GenBank accession No. AF224501), which is composed of 1740 bp encoding a protein consisting of 580 amino acid residues. Its start codon is GTG at 100 bp position and stop codon is TGA at 1840-bp position. Database searching indicated that the deduced protein ofsanB is homologous to the histidinol-phosphate aminotransferase inStreptomyces coelicolor with 31% identities and 47% positives. Gene disruption was performed to study the function ofsanB. It was found that disruptants ofsanB lost the ability to synthesize nikkomycin, which reveals thatsanB is a novel gene essential for nikkomycin biosynthesis.
IL-33 ameliorates experimental colitis involving regulation of autophagy of macrophages in mice
Chang Qi,Lifeng Shi,Min Fang,Shuyao Hua,Zhongyan Wang
- , 2019, DOI: 10.1186/s13578-019-0271-5
Abstract: Treatment with 2,4,6-trinitrobenzenesulfonic acid (TNBS) enhanced the autophagy in mice with colitis. BALB/c mice were given 2.5 mg/mouse TNBS (dissolved in 50% ethanol) or the vehicle ethanol intrarectally. All the mice were sacrificed on fourth day. a Body weight changes were monitored between zeroth to fourth day in different groups of mice. b Colon lengths were measured. c Histological analysis (hematoxylin and eosin staining) of mice colons was determined under microscope (original magnification,？×200). d Extracts from colons were subjected to LC3 western blotting to evaluate for treatment with TNBS versus the vehicle ethanol. Values were mean？±？SD. The asterisk indicates p？<？0.05. Data were presented as means？+？SD of three to six individual mice per group and represent？>？three independent experimental repeat
The Roles of Genetics in Aβ related Alzheimer's Diseases
Ding, Zechao,Tian, Yin,Wang, Zhongyan,Zhang, Huiling
- , 2015, DOI: 10.5599/admet.3.3.196
Abstract: Sa？etak About 35 million people worldwide were suffered from Alzheimer’s disease (AD) in 2014 and the number of patients was expected to increase by 4-fold in 2050. As a neurodegenerative disease impacting our society, the pathogenesis and prognosis of AD have not yet fully understood. Senile plaque is generally regarded as one of the hallmarks of the disease, which may be due to the imbalance of Aβ peptides in the brain. Over the last decades, studies of early onset familial AD have led us to a deeper understanding of the genetics and molecular biology of AD. There is increasing evidence to suggest that the pathogenesis of AD is more likely to be caused by multiple genetic mutations. However, the precise genetic component leading to AD pathogenesis remains unclear. In this review, we will briefly introduce the classification of AD in the context of genetics. Then we will discuss the gene mutations in chromosome 21, 19 and presenilin as well as their links to Aβ peptides. Imaging data will be discussed alongside to complement the associated structural and physiological changes in the brain. It is our hope that future research in genetics will continue to enhance our understanding of the pathogenesis of AD and the mechanisms leading to the formation of senile plaques
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