Liu S.,Henan Agricultural University |
Wang Y.,Henan Agricultural University |
Bai B.,Henan Agricultural University |
Su C.,Henan Industry and Trade Vocational College |
And 2 more authors.
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering | Year: 2011
To further realize biomass briquette fuel of high efficiency combustion, the dynamic analysis was performed for the corn stalk briquette. The corn straws in different sizes (1, 0.25 mm) and different heating rate (10, 20, 40°C/min) had been studied using thermogravimetric analysis, and then were treated by first order or pseudo-second order kinetics. Thermo gravimetry, digital thermogravimetry and differential thermal could be obtained. The kinetic parameters like activation energy and frequency factor could be calculated by using thermo gravimetry and digital thermogravimetry. Thermal decomposition kinetics equation of corn straws was obtained. The results showed that corn stalk briquette combustion process could be divided into three parts: endothermic and dehydration, precipitation of volatile and the combustion reaction, fixed carbon combustion reaction. Different rate of temperature and sample fineness had some influences on the activation energy and the maximum weight loss rate. The activation energy of cornstalk briquette reached maximum at heating rate of 20°C/min. The study could provide theoretical basis for further research on the actual pyrolysis process of biomass briquette fuel and determine design parameters of burning equipments.
Zhang B.,Health Science University |
Li D.-X.,Xian Jiaotong University |
Lu N.,Henan Industry and Trade Vocational College |
Fan Q.-R.,Health Science University |
And 2 more authors.
International Journal of Molecular Sciences | Year: 2015
Tetraspanin-18 (TSPAN18) potentially plays a role in the calcium signaling that is associated with dopamine-induced cortical neuron apoptosis and is considered to be an important mechanism in the pathogenesis of schizophrenia (SCZ). Furthermore, a genome-wide association study (GWAS) identified TSPAN18 as a possible susceptibility gene for SCZ. To validate these findings and reveal the effects of different inheritance models, seven single nucleotide polymorphisms (SNPs) of the TSPAN18 gene were analyzed in 443 patients with SCZ and 628 controls of Han Chinese descent via the SNPscan method. Single SNP, genotype, and association analyses with different models (i.e., additive, dominant, and recessive models) were performed, and the published datasets (2062 cases and 2053 controls) were combined with our results to determine the inheritance effects of the SNPs on SCZ. We observed genotypes and allele distributions of TSPAN18 gene did not show any significant associations in the Han Chinese population based on our experimental and meta-analytical results. Our findings indicate that the TSPAN18 gene is unlikely to be a major susceptibility gene for schizophrenia in Han Chinese. © 2015 by the authors; licensee MDPI, Basel, Switzerland.
Qiao C.,Zhengzhou University |
Zhou Y.,Henan Industry and Trade Vocational College |
Cai X.,Zhengzhou University |
Cai X.,Henan Polytechnic University |
And 7 more authors.
RSC Advances | Year: 2016
The plastic deformation mechanism of iron (Fe) nanowires under torsion is studied using the molecular dynamics (MD) method by applying an external driving force at a constant torsion speed. We find that the deformation behavior depends on the orientation of the wire. The dislocations in <100> and <111> oriented nanowires propagate through the nanowires under torsion, whereas those in <110> oriented nanowires divide the wire into two parts. The situation that there is a low angle twist grain boundary (GB) in the nanowires is also under consideration. The results reveal that the dislocations are concentrated on the GB in the initial state, presenting different patterns of dislocation network. The networks change depending on the twist direction. They shrink with increase in twist angle but expand with the decreasing twist angle, presenting an asymmetric phenomenon. Our findings can help us more thoroughly understand the plastic deformation mechanism of Fe nanowires under torsion. © The Royal Society of Chemistry 2016.
Li M.,Luoyang Institute of Science and Technology |
Qi A.,Henan Industry and Trade Vocational College
Proceedings - 2010 3rd International Congress on Image and Signal Processing, CISP 2010 | Year: 2010
In this paper, a new continuous skeleton extraction method on color image was proposed. This method uses a new level set model in color space to extract the topology node of an object using a skeleton point as source-point which spreading a moderate wave-front, and then using these topology nodes as new source nodes, it spreads the second high-speed transmission wave front in order to identify skeleton points. All the parameters are obtained from the analysis, avoiding human intervention. Experiment and analysis can verify the validity and the robustness of this method, and it is insensitive to color gradient and boundary noise. ©2010 IEEE.
Zhang G.,Henan Industry and Trade Vocational College |
Feng D.M.,Soochow University of China
Proceedings - 2010 3rd International Conference on Biomedical Engineering and Informatics, BMEI 2010 | Year: 2010
This paper presents a new framework to calculate the continuous brain blood vessel skeleton curve of binary images and gray-scale images. The main idea of the method is: the minimum cost path between any two skeleton points is a skeleton line. Algorithm using two different intermediate functions, one is Euclidean distance field and another is deformed gradient vector flow, gained two different energy function respectively proportional to them. The topology nodes from first energy function control the shape of the object, and the second one control skeleton extraction using topology nodes as the source points. Experiment and analysis can verify the validity and robustness of this method, and not sensitive to the boundary noise. ©2010 IEEE.