Pyrolysis process is advanced as a former-treatment for waste printed circuit broad (PCB). The results show that at above 500 pyrolysis was complete The mechanical properties of PCBs that are pyrolyzed. It is observed that at 600 ¡æ... more
Pyrolysis process is advanced as a former-treatment for waste printed circuit broad (PCB). The results show that at above 500 pyrolysis was complete The mechanical properties of PCBs that are pyrolyzed. It is observed that at 600 ¡æ pyrolysis temperature the tensile strength and the punching strength of PCB is lower than those of original samples.
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This paper aims to improve the calculation efficiency and accuracy of concrete damage degree identification, and then to analyze the damage mechanism of concrete damage. First, the correlation analysis and principal component analysis of... more
This paper aims to improve the calculation efficiency and accuracy of concrete damage degree identification, and then to analyze the damage mechanism of concrete damage. First, the correlation analysis and principal component analysis of 15 characteristic parameters of acoustic emission signals accompanying concrete uniaxial compression and splitting damage process are performed through which the dimension is reduced into 5 non-correlated principal components. Then, based on the analysis of the relationship between each principal component and the damage and cracking mechanism of concrete, the damage degree of concrete is identified as an input variable of the BP neural network. The results show that the 5 principal components effectively eliminate redundant information and carry information on the failure mechanism of concrete damage and the damage process. Principal component analysis and the neural network are used to achieve the accurate recognition of acoustic emission paramete...
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To analyze the expression of leucine-rich and immunoglobulin-like domain gene1 (LRIG1) in pituitary tumor and its clinical significance. Patients were divided into two groups: hypophysoma group (n = 80) and normal group (normal brain... more
To analyze the expression of leucine-rich and immunoglobulin-like domain gene1 (LRIG1) in pituitary tumor and its clinical significance. Patients were divided into two groups: hypophysoma group (n = 80) and normal group (normal brain tissue, n = 30). The immune tissue chemical streptavidin avidin-peroxidase was applied to detect the expression of LRIG1 of both groups and to analyze its relationship with the patients' prognosis. The positive expression rate of LRIG1 in normal brain tissues was significantly higher than that in pituitary adenomas (100% vs. 53.8%) (p < 0.05). The positive expression rate of LRIG1 in pituitary tumors was not significantly related to age and gender, the difference was not statistically significant (p > 0.05). The positive expression rate of LRIGl in non-invasive pituitary adenomas was higher than that in invasive pituitary tumors (68.4% vs. 21.7%), the difference was statistically significant (p < 0.05). Cox multivariate survival analysis sh...
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Abstract As immersed virtual maintenance simulation system was built by integrating ShapeWarp Human Motion Capture System and DELMIA, the motion information of man in actual world can be transferred to the manikin in the virtual... more
Abstract As immersed virtual maintenance simulation system was built by integrating ShapeWarp Human Motion Capture System and DELMIA, the motion information of man in actual world can be transferred to the manikin in the virtual environment of DELMIA. ...
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Based on the uncertain problem during the design of the fatigue life of drive axle housing assemble, entity model of drive axle housing assemble of some commercial vehicle is built by UG. According to national standard of the Bench Test,... more
Based on the uncertain problem during the design of the fatigue life of drive axle housing assemble, entity model of drive axle housing assemble of some commercial vehicle is built by UG. According to national standard of the Bench Test, with finite element method, the finite element model is built and the static strength analysis is made by the FEM-software ABAQUS 6.8. On the base of the result of stress-strain analysis and the model validation, with the fatigue software FEMFAT 4.7D, the research on the cumulative damage and endurance limit safety factors is studied in terms of the Miner modified fatigue theory in the drive axle housing assemble. The results show that the model and method is reasonable and effective. It is helpful to optimize the structure parameter in the drive axle design through the optimization algorithm in the automobile.
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In this paper, based on the analysis of hydrology and sediment data, a BP artificial neural network model which has been applied maturely and widely is established to study the relationship between the middle-section width of the Hengsha... more
In this paper, based on the analysis of hydrology and sediment data, a BP artificial neural network model which has been applied maturely and widely is established to study the relationship between the middle-section width of the Hengsha Passage and the three other factors - the runoff, the sediment discharge of the South Branch and the split ebb flow ratio
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ABSTRACT A 3D numerical model is set up to simulate the tidal currents in the Changjiang estuary by ECOMSED model in this paper. This model has been validated with the measured data, the computed results of water level, flow velocity... more
ABSTRACT A 3D numerical model is set up to simulate the tidal currents in the Changjiang estuary by ECOMSED model in this paper. This model has been validated with the measured data, the computed results of water level, flow velocity magnitude and direction agree well with the measured data. Based on the sediment grain size of riverbed in the North Branch, Dou guoren&#39;s formula is applied to calculate the sediment incipient velocity in the North Branch, which is compared with the computed bottom velocity fields to analyze the riverbed erosion and sediment deposition in the North Branch. The comparisons suggest that the hydrodynamic condition in the North Branch should be improved for meeting the navigation requirements. The research results can provide the government decision-maker for technical supports.
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Abstract Reliability of IC packages during drop impact is critical for portable electronic products. These packages are susceptible to solder joint failure when induced by mechanical shock and printed circuit board (PCB) bending during... more
Abstract Reliability of IC packages during drop impact is critical for portable electronic products. These packages are susceptible to solder joint failure when induced by mechanical shock and printed circuit board (PCB) bending during impact. Normally, portable products ...
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... Cards, ASME Joumal of Electronics Packaging, Vol.114, December, pp.378-383 4. EU Wong, KM Lim, Norman Lee, Simon Seah, Cindy Hoe, Jason Wang, Drop Impact Test - Mechanics &amp;amp; Physics of Failure, 4th EPTC Conference,... more
... Cards, ASME Joumal of Electronics Packaging, Vol.114, December, pp.378-383 4. EU Wong, KM Lim, Norman Lee, Simon Seah, Cindy Hoe, Jason Wang, Drop Impact Test - Mechanics &amp;amp; Physics of Failure, 4th EPTC Conference, Singapore, 2002, pp.327-333 5. Gu Jie ...
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A 3D numerical model is set up to simulate the tidal current and sediment transport in the Changjiang River estuary with ECOMSED model, which has been validated with the measured data, the computed results of water level, flow velocity... more
A 3D numerical model is set up to simulate the tidal current and sediment transport in the Changjiang River estuary with ECOMSED model, which has been validated with the measured data, the computed results of water level, flow velocity magnitude and direction, and suspended sediment concentration agree well with the measured data. This paper analyzes the influence of Hengsha Passage on sediment deposition in the upper reach of the Deepwater Navigation Channel in the Changjiang River Estuary by use of this model, in order to explore the reason for the sediment deposition in the upper reach of the Deepwater Navigation Channel.
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Go to AGRIS search. Journal of Southwest Agricultural University (Dec 1990). Critical value of wheat for tolerance to Cl in purple soils. ...
The effect of calcium-based addition on the brominate flux during printed circuit board (PCB) pyrolysis was investigated. It was found that bromine (Br) can be effectively fixed in solid phase during PCB pyrolysis by adding calcium-based... more
The effect of calcium-based addition on the brominate flux during printed circuit board (PCB) pyrolysis was investigated. It was found that bromine (Br) can be effectively fixed in solid phase during PCB pyrolysis by adding calcium-based waste materials. Phenol and 4-ethylphenol are the major products of pyrolysis. When the two kinds of red mud were used as additive, their content was 85.25 and 84.81%, respectively, which was higher than others. The 2-bromophenol and 2-bromo-4-methyl-benzene are the main Br-containing pyrolysis volatiles. After adding calcium-based additive, these two volatiles were apparently reduced and only small amounts of 2-bromo-4-methyl-benzene were detected in the products, namely 0.71 and 0.86%, respectively for the two kinds of red mud. Hence, no matter from the perspective of product use or simple Br-fixing, the bromine in the three-phase products can be effectively regulated and controlled by adding calcium-based waste residue during PCB pyrolysis. Final...
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Research Interests: Chemistry, Medicine, Signal Transduction, Cell line, Humans, and 15 moreAntioxidant, Quantitative Structure Activity Relationship, Lung, Enzyme, Gallic acid, Hydrogen Peroxide, Oxidative Damage, In Vitro Toxicology, Cell Proliferation, Cell Survival, Catechin, Oxidants, fibroblasts, Theaflavin, and Pharmacology and pharmaceutical sciences
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... 2, Li Yinghui Dai Jie and others;An Effective Algorithm for the Static Shape of a ... 7, Hu Lingbin Tang Jun;Solemnest and application of catenary's curve equation[J];Ship & Boat ... Dalian University of Technology,Dalian... more
... 2, Li Yinghui Dai Jie and others;An Effective Algorithm for the Static Shape of a ... 7, Hu Lingbin Tang Jun;Solemnest and application of catenary's curve equation[J];Ship & Boat ... Dalian University of Technology,Dalian 116024,China);Analysis of elastic single mooring cable system ...
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Research Interests: Demography, Medicine, Parameter estimation, Disease Outbreaks, Pregnancy, and 15 moreHumans, Female, Male, Poisson regression, Netherlands, Incidence, Middle Aged, Adult, Psychiatric, Gestational Age, Cross Sectional Studies, Confidence Interval, Prenatal Exposure, Psychology and Cognitive Sciences, and Medical and Health Sciences
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In the present study, we successively extracted the Pu-erh tea with acetone, water, chloroform, ethyl acetate, and n-butanol, and the extracts were then isolated by column chromatography. Our study demonstrates that the Pu-erh tea ethyl... more
In the present study, we successively extracted the Pu-erh tea with acetone, water, chloroform, ethyl acetate, and n-butanol, and the extracts were then isolated by column chromatography. Our study demonstrates that the Pu-erh tea ethyl acetate extract, n-butanol extract, and their fractions had superoxide anion and hydroxyl radical scavenging activity: fractions 2 and 8 from the ethyl acetate extract and fractions 2, 4, and 5 from the n-butanol extract showed protective effects against hydrogen peroxide-induced damage in human fibroblast HPF-1 cells and increased the cells&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39; viability under normal cell culture conditions. In addition, it is found that these fractions, except fraction 5 from the n-butanol extract, decreased the accumulation of intracellular reactive oxygen species in hydrogen peroxide-induced HPF-1 cells. Interestingly, the antioxidant effect of fraction 8 from the ethyl acetate extract on the above four systems was much stronger than that of the typical green tea catechin (-)-epigallocatechin-3-gallate, but there were almost no monomeric polyphenols, theaflavins, and gallic acid in fraction 8.
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The p16(INK4a) gene is a cell cycle inhibitor and a major tumour suppressor protein, but the regulation and effects on tumour cells&amp;amp;amp;amp;#39; invasion process of p16(INK4a) is poorly known. A role for p16(INK4a) in basal... more
The p16(INK4a) gene is a cell cycle inhibitor and a major tumour suppressor protein, but the regulation and effects on tumour cells&amp;amp;amp;amp;#39; invasion process of p16(INK4a) is poorly known. A role for p16(INK4a) in basal cell carcinoma is suggested by the observation that p16(INK4a) was upregulated at the invasive front of the majority of basal cell carcinomas with infiltrative growth patterns, accompanied by cessation of proliferation. In this paper, we explore whether there is a difference of tumour cells&amp;amp;amp;amp;#39; proliferative activity between the centre and the invasion front tissues of human colorectal cancer and its relationship with the expression and methylation status of p16(INK4a) gene. We obtained the centre and the invasion front tissues of colorectal cancer respectively by the technology of laser mircodissection. The expressions of the proliferating cell nuclear antigen ki67 and p16(INK4a) were assessed by immunohistochemistry, methylation-specific polymerase chain reaction (MS-PCR) and reverse-transcription polymerase chain reaction (RT-PCR) in the different areas. There was a significant difference in the expressions of ki67 between the centre and the invasion front tissues (p &amp;amp;amp;amp;lt; 0.05). The difference did not correlate with age, sex, Dukes stage but did correlate with expression of p16(INK4a) gene (chi(2) = 25.37, p &amp;amp;amp;amp;lt; 0.01). Furthermore, hypermethylation of the promoter was the major mechanism of inactivation of p16(INK4a) in the centre areas. Demethylation of the p16(INK4a) promoter, the elevated expression of p16(INK4a) protein and mRNA level was proved in the invasion front. Our finding suggested that enhanced invasion in tumours was accompanied by ceased proliferation in the invasion fronts of human colorectal cancer. This interesting phenomenon may be due to not only the microenvironment, but also the molecular changes such as p16(INK4a) status.
Research Interests: Immunohistochemistry, Cancer Research, Adolescent, Medicine, Gene expression, and 15 moreColorectal cancer, Clinical Practice, Humans, Methylation, Female, Male, DNA methylation, Clinical Sciences, Aged, Middle Aged, Neoplasm Invasiveness, Tumor Suppressor Gene, Adult, Colorectal Neoplasms, and Neoplasm staging
Research Interests: Free Radicals, Caenorhabditis elegans, Aging, Biology, Free Radical, and 15 moreGreen Tea, Blood Pressure, Animals, Green Fluorescent Protein, Camellia sinensis, Fluorescent Protein, EGCG, Active Ingredient, Antiaging, Cell Survival, DNA binding proteins, Catechin, Biochemistry and cell biology, Gene Expression Regulation, and Cell culture techniques
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Th-cytokines play important roles in dacryoadenitis associated with... more
Th-cytokines play important roles in dacryoadenitis associated with Sjögren&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s syndrome (SS). The aims of this study were to (i) investigate whether interleukin (IL)-17, a newly identified Th-cytokine, participates in autoimmune dacryoadenitis of MRL/lpr mice and (ii) examine the relationships among IL-17, IL-4, and interferon (IFN)-γ in these mice. Three-month-old MRL/lpr mice with lacrimal gland inflammation and 3-month-old control BALB/c mice were used. Frozen sections of lacrimal glands and submandibular lymph nodes were stained with monoclonal antibodies to cytokines IL-17, IL-4, and IFN-γ. Concentrations of IL-17 in serum and 48-h splenocyte culture supernatants were detected by ELISA. Marked lacrimal gland inflammation was observed in all MRL/lpr mice but not in any BALB/c control mice. In the lacrimal glands of MRL/lpr mice, the proportions of cells that stained were 5 ± 3% for IL-17, 32 ± 14% for IL-4, and 4 ± 2% for IFN-γ. In the submandibular lymph nodes of MRL/lpr mice, expression of IL-17 and IL-4 was significantly higher than that of IFN-γ, and all three cytokines were significantly higher in MRL/lpr mice than in BALB/c mice. Concentrations of IL-17 in both serum and splenocyte culture supernatants of MRL/lpr mice were elevated compared to BALB/c controls. Since expression of IL-17 is elevated in 3-month-old MRL/lpr mice, we suggest that it plays a role in the pathophysiology of autoimmune dacryoadenitis in these mice.
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... 10, HAN Xiang-Qian 1, ZHANG Dao-Tian 2, TANG Jia-Yan 1 1Department of Basic Courses, PLA Nanjing Institute of Politics, Nanjing 210003, China, 2Department of Political Education, Bengbu Tank Institute, Bengbu 233000, China;Analysis of... more
... 10, HAN Xiang-Qian 1, ZHANG Dao-Tian 2, TANG Jia-Yan 1 1Department of Basic Courses, PLA Nanjing Institute of Politics, Nanjing 210003, China, 2Department of Political Education, Bengbu Tank Institute, Bengbu 233000, China;Analysis of mental health and personality in ...
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The programmed death-1 (PD-1) is a potent immunoregulatory molecule which is responsible for the negative regulation of T-cell activation and peripheral tolerance. In order to investigate the association between polymorphisms of PD-1 and... more
The programmed death-1 (PD-1) is a potent immunoregulatory molecule which is responsible for the negative regulation of T-cell activation and peripheral tolerance. In order to investigate the association between polymorphisms of PD-1 and breast cancer, a case-control study was conducted in Chinese female population consisting of 490 cases with breast cancer and 512 age-matched healthy individuals from Heilongjiang Province of China. Four polymorphisms of the PD-1 gene, including rs36084323 (PD-1.1), rs7421861, rs2227982 (PD-1.9), and rs2227981 (PD-1.5), were selected and genotypes were determined by the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The frequencies of PD-1.1 GG genotype and PD-1.5 CT genotype were significantly lower in cases compared with controls (P = 0.020 and 0.004, respectively), and PD-1.5 CC genotype and C allele had higher frequencies in cases (P = 0.003 and 0.010). In haplotype analysis, we observed that the frequencies of ATTC and GTCT haplotypes were lower in cases than those of in controls (P = 0.0055 and 0.0012, respectively), whereas the GTCC and ATCC haplotypes had higher frequencies in cases (P = 0.0040 and 0.00008037, respectively). Additionally, strong association was showed between PD-1.1 and P53, and haplotype CCTA was associated with ER status. These results primarily suggest that PD-1 gene polymorphisms may affect the breast cancer risk and prognosis in Chinese Han females of Heilongjiang Province in Northeast China.
Research Interests: Breast Cancer, Biology, China, Medicine, Humans, and 15 moreInternal Medicine, Female, Polymerase Chain Reaction, Middle Aged, Gene Polymorphism, Genotype, Adult, Asian Continental Ancestry Group, Case Control Study, Allele, Haplotype, Case Control Studies, alleles, Breast Neoplasms, and Gene frequency
A new method for processing well water level has been proposed in this paper.With the lag influence of response of water level to barometric pressure and earth tide taken into consideration,using Doodsoon's tidal expansion and... more
A new method for processing well water level has been proposed in this paper.With the lag influence of response of water level to barometric pressure and earth tide taken into consideration,using Doodsoon's tidal expansion and Taylor's expansion of progression,the calculation ...
An experiment was conducted with mixed materials of chicken excrement and wheat straw to study the changes of temperature and oxidization and reduction enzyme during rottening processing in a static state.Results showed that temperatures... more
An experiment was conducted with mixed materials of chicken excrement and wheat straw to study the changes of temperature and oxidization and reduction enzyme during rottening processing in a static state.Results showed that temperatures of different positions of the treatments ...
Mid-long term electric load forecasting is the foundation and premise of power system security dispatch, economic operation, optimization planning and scientific management, its precision is quite important to each department of national... more
Mid-long term electric load forecasting is the foundation and premise of power system security dispatch, economic operation, optimization planning and scientific management, its precision is quite important to each department of national economy, so research on mid-...