46 results on '"Ke-wei Sun"'
Search Results
2. Network pharmacology-based prediction of active compounds in the Wenyang Jiedu Huayu formula acting on acute-on-chronic liver failure with experimental support in vitro and in vivo
- Author
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Dan Tang, Ruo-Yu Wang, Ke-Wei Sun, Yunan Wu, Lin Ding, and Yang Mo
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acute-on-chronic liver failure ,Wenyang Jiedu Huayu formula ,network pharmacology ,atractylenolide I ,rat hepatocytes ,ACLF rat model ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Acute-on-chronic liver failure (ACLF) is characterized by undermined liver function, massive necrosis/apoptosis of hepatocytes, and hepatic inflammatory cell recruitment, leading to multiorgan failure. Traditional Chinese medicine (TCM) has been widely applied in clinical and experimental studies of ACLF. In this study, 23 compounds with 6,386 drug targets were obtained from Wenyang Jiedu Huayu (WYJDHY), and 8,096 genes were identified as ACLF disease targets, among which 3,132 were overlapping co-targets. Expression profile analysis identified 105 DEGs among the co-targets, which were associated with biological activities such as lymphocyte activation, immune response regulation, and pathways such as Th17 cell differentiation and NF-κB signaling. After PPI analysis and network construction, atractylenolide I (AT-1) has been identified as the hub active ingredient of the WYJDHY formula. LPS stimulation inhibited rat hepatocytes’ BRL 3A cell viability, promoted cell apoptosis, increased the levels of ALT, AST, IL-6, and VCAM-1 within the culture medium, and activated NF-κB signaling, whereas AT-1 treatment significantly attenuated LPS-induced toxicity on BRL 3A cells. Furthermore, the NF-κB signaling inhibitor PDTC exerted effects on LPS-stimulated BRL 3A cells similar to those of AT-1, and the combination of PDTC and AT-1 further attenuated LPS-induced toxicity on BRL 3A cells. In vivo, AT-1 alone or with PDTC improved the symptoms and local inflammation in ACLF model rats. In conclusion, 23 active ingredients of six herbs in the WYJDHY formula were retrieved, and 105 co-targets were differentially expressed in ACLF. AT-1 exerts protective effects on LPS-stimulated hepatocytes and ACLF rats, possibly by inhibiting the NF-κB pathway.
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- 2022
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3. Investigation on impact of mutual interactions between elements of Ag nano-particle core-MOF material shell nano-complex and incorporated hemoglobin on electro-catalysis on H2O2 electro-reduction
- Author
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Ke Wei Sun, Fang Wang, Ting Mei Ma, and Han Zeng
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General Chemical Engineering ,Materials Chemistry ,General Chemistry ,Biochemistry ,Industrial and Manufacturing Engineering - Published
- 2022
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4. The crystal structure of (5R,8R,9R,10R,12R,13R,14R)-12-hydroxy-4,4,8,10,14-pentamethyl-17-((R)-2,6,6-trimethyltetrahydro-2H-pyran-2-yl)tetradecahydro-3H-cyclopenta[a]phenanthrene-3,6(2H)-dione, C30H48O4
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Ke-wei Sun, Yun-Hui Wang, Qin Luo, Guang-qun Ma, Hui-yun Wang, and Qing-Guo Meng
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Inorganic Chemistry ,chemistry.chemical_compound ,chemistry ,010405 organic chemistry ,Pyran ,General Materials Science ,Crystal structure ,Phenanthrene ,010402 general chemistry ,Condensed Matter Physics ,01 natural sciences ,Medicinal chemistry ,0104 chemical sciences - Abstract
C30H48O4, orthorhombic, P212121 (no. 19), a = 12.34133(14) Å, b = 16.50759(15) Å, c = 26.8804(2) Å, V = 5476.23(9) Å3, Z = 8, R gt(F) = 0.0422, wR ref(F 2) = 0.0990, T = 293 K.
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- 2020
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5. Efficacy and safety of Fuzheng Huayu tablet on persistent advanced liver fibrosis following 2 years entecavir treatment: A single arm clinical objective performance criteria trial
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Zhi-Min Zhao, Chuan-Wu Zhu, Jia-Quan Huang, Xiao-Dong Li, Yu-Xi Zhang, Jian Liang, Wei Zhang, Yong Zhang, Xian-Gao Jiang, Ya-Li Zong, Ke-Jun Zhang, Ke-Wei Sun, Biao Zhang, Yun-Hai Lv, Hui-Chun Xing, Qing Xie, Ping Liu, and Cheng-Hai Liu
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Pharmacology ,Liver Cirrhosis ,Hepatitis B virus ,Guanine ,Hepatitis B, Chronic ,Treatment Outcome ,Drug Discovery ,Humans ,Antiviral Agents ,Drugs, Chinese Herbal ,Tablets - Abstract
Antiviral therapy can alleviate liver fibrosis in chronic hepatitis B, but it has a limited effect on advanced liver fibrosis/cirrhosis. Traditional Chinese medicine (TCM), particularly FuZheng HuaYu (FZHY) tablet, appears to have an antifibrotic effect, but its improving resolution of hepatitis b virus (HBV) -associated advanced fibrosis and experienced anti-viral treatment has not been investigated.To observe the safety and efficacy of adjunctive FZHY on the HBV-associated cirrhosis patients who received 2 years of entecavir but still with advanced fibrosis.An open-label, multicentre, single arm trial. 251 patients were included and treated with TCM consisted of FZHY tablets 1.6 g and granules, three times a day in addition to entecavir 0.5 mg daily for an additional 48 weeks. Primary outcome was regression of fibrosis (the proportion of patients with a 1-point decrease in the Ishak liver fibrosis score from baseline to week 48).Fibrosis regression occurred in 94 of 184 patients with paired liver biopsy (51.09%, 95% CI: 43.9~58.0). In 132 compensated cirrhosis patients (Ishak score ≥5), 56.06% (74/132, 95% CI: 47.5~64.2) showed fibrosis regression and reached the goal of 54% (15% more than entecavir mono-therapy). 10 patients occurred adverse reaction, most of them were mild, and all recovered or achieved remission.The combination therapy of FZHY, TCM granules and ETV could regress the liver fibrosis in the patients with HBV cirrhosis, who experienced 2 years of ETV treatment, and it is safe and well tolerated.
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- 2022
6. Expression of PD-L1 and CD4+ tumor-infiltrating lymphocytes predict survival in head and neck squamous cell carcinoma
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Ze-Ming Fu, De-Jun Zhang, Ying-Yuan Guo, Shuang Han, Fang Guo, Jie Bai, Yi-Ning Wan, Guo-Fang Guan, Ke-Wei Sun, and Na Yang
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PD-L1 ,Cancer Research ,Oncology ,tumor-infiltrating lymphocytes ,chemical and pharmacologic phenomena ,prognostic value ,Articles ,head and neck squamous cell carcinoma - Abstract
The clinical efficacy of immune checkpoint blockade has been recently demonstrated in a variety of cancer types. The aim of the present study was to characterize the expression profile of tumor-infiltrating lymphocytes (TILs) and programmed death-ligand 1 (PD-L1) in head and neck squamous carcinoma (HNSCC). A total of 63 patients with HNSCC were enrolled in the present study. CD3+ and CD4+ TILs and the expression of PD-L1 were detected by immunohistochemistry. PD-L1 mRNA levels were evaluated by reverse transcription-quantitative PCR analysis. The association of TILs and PD-L1 with patient clinicopathological characteristics was also assessed. CD3+ and CD4+ TILs were detected in 100% of the samples. CD3+ was the predominant subset of TILs. PD-L1 was expressed in 53 of 61 (86%) patients when a score of ≥1 on tumor cells was considered positive and in 28 patients (45.2%) when a score of >5 on tumor cells was considered positive. PD-L1 mRNA levels were determined to be significantly correlated with PD-L1 protein expression. Survival analysis demonstrated that high CD4+ TILs were associated with improved overall survival (OS) and disease-free survival (DFS), and furthermore, the association of high PD-L1 expression with unfavorable OS and DFS was statistically significant. Multivariate analysis identified CD4+ TILs and PD-L1 as prognostic markers for HNSCC. The results of the present study suggested that increased CD4+ TILs in HNSCC may be associated with improved outcomes, while high expression of PD-L1 may indicate unfavorable OS and DFS; thus, these factors may serve as predictors of the response to immune checkpoint therapy.
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- 2022
7. The crystal structure of (6aR,6bS,8aS,8bR,9S,11aS,12aS,12bS)-10-(4-acetoxy-3-methylbutyl)-6a,8a,9-trimethyl-3,4,5,6,6a,6b,7,8,8a,8b,9,10,11a,12,12a,12b-hexadecahydro-1H-naphtho[2′,1′:4,5]indeno[2,1-b]furan-4-yl acetate, C31H48O5
- Author
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Ke-wei Sun, Hui-yun Wang, Qing-Guo Meng, Mou Xiaodong, and Ming-Zhu Luan
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Chemistry ,02 engineering and technology ,Crystal structure ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Medicinal chemistry ,0104 chemical sciences ,Inorganic Chemistry ,chemistry.chemical_compound ,Furan ,General Materials Science ,0210 nano-technology - Abstract
C31H48O5, monoclinic, P21 (no. 4), a = 11.0421(3) Å, b = 6.49710(16) Å, c = 20.4687(4) Å, β = 97.922(2)°, V = 1454.45(6) Å3, Z = 2, R gt(F) = 0.0382, wR ref(F 2) = 0.1024, T = 293(2) K.
- Published
- 2020
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8. Traditional Chinese medicine, liver fibrosis, intestinal flora: is there any connection?-a narrative review
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Shuang-Lin Qi, Yu-Tong Liu, and Ke-Wei Sun
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0301 basic medicine ,Advanced and Specialized Nursing ,Liver Cirrhosis ,Flora ,business.industry ,Liver fibrosis ,Treatment options ,Traditional Chinese medicine ,Gastrointestinal Microbiome ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,Anesthesiology and Pain Medicine ,030220 oncology & carcinogenesis ,Intestinal Microbiome ,Immunology ,Medicine ,Humans ,Narrative review ,Medicine, Chinese Traditional ,business ,Drugs, Chinese Herbal - Abstract
This paper aims to analyze how intestinal flora regulates liver fibrosis pathogenesis and to evaluate the regulatory effect of traditional Chinese medicine (TCM) on the intestinal flora, providing new insights into liver fibrosis treatment. Destruction of the intestinal microbiome can lead to liver fibrosis development, accelerating the intestinal microbiome's disruption. TCM can effectively regulate the intestinal flora, helping prevent and treat liver fibrosis. This review discusses the mechanisms behind intestinal flora changes in liver fibrosis and how TCM can regulate these changes. We searched PubMed, the Wanfang database, and CNKI for "liver fibrosis", "intestinal microflora", and "intestinal microbiota" and reviewed the retrieved literature. We detail the prevention and treatment options for liver fibrosis though the use of TCM in regulating intestinal flora. We also highlight the influence of the intestinal flora on liver fibrosis and present the research regarding the prevention and treatment of liver fibrosis using TCM. We also describe the effects of TCM on the intestinal flora. TCM can effectively regulate the intestinal flora to prevent and treat liver fibrosis through the liver-intestine axis.
- Published
- 2020
9. Beating maps of singlet fission: Simulation of coherent two-dimensional electronic spectroscopy by Davydov ansatz in organic molecules.
- Author
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Ke-Wei Sun and Yao Yao
- Subjects
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COHERENCE (Physics) , *DAVYDOV splitting , *CHARGE transfer , *PHASE transitions , *EXCITED state energies - Abstract
The coherent two-dimensional (2D) electronic spectra for both the intra- and inter-molecular singlet fission (SF) processes in organic molecules are simulated by the Davydov ansatz combined with the Frenkel-Dirac time-dependent variational algorithm. By virtue of the dynamical approach, we are able to identify the signals of triplet excitation in the excited-state absorption contribution of the 2D spectra. In order to discuss whether a mediative charge-transfer (CT) state is necessary to SF, we increase the CT-state energy and find, in a theoretical manner, that the beating signal related to the triplet is inhibited. The vibronic coherence is then studied in the beating maps for both the ground and excited states. Except for the normal beating modes adhering to the relevant electronic state, we observe signals that are explicitly related to the triplet excitations. The pathways of transition corresponding to these signals are clarified in the respective Feynman diagram, which can help the experimenters determine the physical origin of relevant measurements. [ABSTRACT FROM AUTHOR]
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- 2017
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10. Disruption of the gut-liver axis in the pathogenesis of acute-on-chronic liver failure
- Author
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Tao Zhang, Lei Huang, Wei Jiang, Ya Wang, Ren Lang, and Ke-Wei Sun
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Lipopolysaccharides ,0301 basic medicine ,Cirrhosis ,Adaptive Immunity ,C-Mer Tyrosine Kinase ,Bioinformatics ,Article ,Pathogenesis ,03 medical and health sciences ,0302 clinical medicine ,Intestinal mucosa ,medicine ,Animals ,Humans ,Acute on chronic liver failure ,Decompensation ,HMGB1 Protein ,Intestinal Mucosa ,Protein Kinase Inhibitors ,c-Mer Tyrosine Kinase ,Hepatology ,business.industry ,Gastroenterology ,Acute-On-Chronic Liver Failure ,Dendritic Cells ,medicine.disease ,Acquired immune system ,Immunity, Innate ,Gastrointestinal Microbiome ,Toll-Like Receptor 4 ,030104 developmental biology ,Bacterial Translocation ,Dietary Supplements ,Dysbiosis ,030211 gastroenterology & hepatology ,business - Abstract
Acute-on-chronic liver failure (ACLF) is characterized by organ failure mediated by acute decompensation of cirrhosis. Recent studies have highlighted the importance of the gut-liver axis (GLS) and its association with ACLF pathogenesis. In this review, we discuss the mechanisms related to the alteration of the GLA and their involvement in ACLF pathogenesis and suggest some possible therapeutic options that could modulate the GLA dysfunction. This knowledge may provide information useful for the design of therapeutic strategies for gut dysbiosis and its complications in ACLF.
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- 2018
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11. Novel HBV mutations and their value in predicting efficacy of conventional interferon
- Author
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Ke-Wei Sun, Xiaoyu Fu, Deming Tan, Guo-Zhong Gong, Huan-Yu Gong, Ling Wang, Daxian Wu, and Juan Wu
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Male ,0301 basic medicine ,Time Factors ,medicine.disease_cause ,Logistic regression ,Gastroenterology ,Serology ,chemistry.chemical_compound ,0302 clinical medicine ,Interferon ,Odds Ratio ,Hepatitis B e Antigens ,Alanine Transaminase ,Viral Load ,Hepatitis B ,Phenotype ,Treatment Outcome ,HBeAg ,Area Under Curve ,Female ,030211 gastroenterology & hepatology ,medicine.drug ,Adult ,Hepatitis B virus ,medicine.medical_specialty ,Antiviral Agents ,Young Adult ,03 medical and health sciences ,Predictive Value of Tests ,Internal medicine ,medicine ,Humans ,Genetic Predisposition to Disease ,Genotyping ,Gene ,Chi-Square Distribution ,Hepatology ,business.industry ,Logistic Models ,030104 developmental biology ,ROC Curve ,chemistry ,DNA, Viral ,Multivariate Analysis ,Mutation ,Immunology ,Interferons ,business ,Biomarkers ,DNA - Abstract
Accumulating studies assessing the impacts of hot spot mutations on conventional interferon (IFN) efficacy come to discrepant conclusions; studies regarding the mutations in S and RT regions are also unclear. The present study aimed to evaluate the impacts of HBV mutations on the efficacy of conventional IFN.A total of 126 patients who received conventional IFN treatment for 48 weeks were enrolled. Biochemical and serological parameters were routinely tested. The sequences of HBV from 78 serum samples were amplified by nested-PCR; mutations were identified with sequence scanner V1.0 after ABI 3730xl direct sequencing, HBV genotypes were determined according to RT gene sequences utilizing NCBI Genotyping Tool which was based on phylogenetic analysis.The baseline DNA levels of virological response (VR) group were significantly lower than those of no VR group [7.13+/-0.76 vs 7.69+/-0.56 lg (copies/mL), P=0.001]. The baseline ALT levels were significantly higher in the HBeAg clearance group (204.72+/-88.65 vs 162.80+/-85.81 IU/L, P0.05) and HBeAg seroconversion group (204.89+/-95.68 vs 166.75+/-84.43 IU/L, P0.05). Females and lower BMI levels (20.01+/-2.33 vs 21.65+/-3.66 kg/m2, P0.05) were prone to acquired biochemical response (BR). PC-W28STOP (ntG1896A) was significantly higher in the combined response (CR) group than that in the no CR group (91.7% vs 39.7%, P=0.001). Multivariate logistic regression analysis showed that baseline DNA, PC-P159T (ntC2288A), BCP-N118T (ntA1726C) and BCP-L134L (ntA1775C/G/T) influenced VR independently. PC-G182C (ntG2357T), PC-S64A/T (ntT2003G/A) and BMI were independent influence factors for HBeAg clearance, HBeAg seroconversion and BR, respectively. The new predicting model concluded that baseline DNA and new mutations for VR were established successfully, and ROC analysis showed that AUC was 0.842 (P0.001) with a sensitivity of 0.652 and a specificity of 0.933.PC-P159T (ntC2288A), BCP-N118T (ntA1726C), BCP-L134L (ntA1775C/G/T), PC-G182C (ntG2357T) and PC-S64A/T (ntT2003G/A) were novel identified mutations that impacted IFN therapeutic efficacy. These novel mutations could serve as important predictors before conventional IFN treatment.
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- 2017
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12. A variational master equation approach to quantum dynamics with off-diagonal coupling in a sub-Ohmic environment.
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Ke-Wei Sun, Yuta Fujihashi, Akihito Ishizaki, and Yang Zhao
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QUANTUM theory , *BOSONS , *PHASE diagrams , *THERMODYNAMIC equilibrium , *OHMIC contacts , *MOLECULAR dynamics - Abstract
A master equation approach based on an optimized polaron transformation is adopted for dynamics simulation with simultaneous diagonal and off-diagonal spin-boson coupling. Two types of bath spectral density functions are considered, the Ohmic and the sub-Ohmic. The off-diagonal coupling leads asymptotically to a thermal equilibrium with a nonzero population difference Pz(t → 8) ≠ 0, which implies localization of the system, and it also plays a role in restraining coherent dynamics for the sub-Ohmic case. Since the new method can extend to the stronger coupling regime, we can investigate the coherent-incoherent transition in the sub-Ohmic environment. Relevant phase diagrams are obtained for different temperatures. It is found that the sub-Ohmic environment allows coherent dynamics at a higher temperature than the Ohmic environment. [ABSTRACT FROM AUTHOR]
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- 2016
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13. Davydov Ansatz as an efficient tool for the simulation of nonlinear optical response of molecular aggregates.
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Ke-Wei Sun, Gelin, Maxim F., Chernyak, Vladimir Y., and Yang Zhao
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SIMULATION methods & models , *NONLINEAR optical materials , *SIGNAL processing , *GROUND state energy , *EXCITON theory - Abstract
We have developed a variational approach to the description of four-wave-mixing signals of molecular aggregates, in which the third-order response functions are evaluated in terms of the Davydov Ansätze. Our theory treats both singly and doubly excited excitonic states, handling the contributions due to stimulated emission, ground state bleach, and excited state absorption. As an illustration, we simulate a series of optical two-dimensional spectra of model J-aggregates. Our approach may become suitable for the computation of femtosecond optical four-wave-mixing signals of molecular aggregates with intermediate-to-strong exciton-phonon and exciton-exciton coupling strengths. [ABSTRACT FROM AUTHOR]
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- 2015
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14. Optimization Design of Construction Waste Reverse Logistics System
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Ke Wei Sun, Ru Yan Li, and Xiang Yu Ma
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Transport engineering ,Engineering ,Service (systems architecture) ,Third party ,business.industry ,Construction waste ,General Medicine ,Reverse logistics ,business ,Manufacturing engineering ,System model - Abstract
The paper analyses the theory and practice about the construction waste recycling in a meticulous and deep going way based on reverse logistics combining with present social development circulation economy current situation,then brings forward the operation pattern about the construction waste recycling based on reverse logistics,on the basis of household electrical appliances and electronic products recycling reverse logistics model, this paper put forward the system model of the disposal of construction waste based on the recovery of the third party reverse logistics service providers.Also,the paper makes an explanation about the problem and measure into practice,and provides theory and practice for the construction waste recycling.
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- 2015
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15. Analysis of the Rate Constant for Hydration Kinetics of the Cement and Ash Fly in the Solidified Residues System Based on the Measurement of Ca(OH)2
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Xiao Jun Zhou, Ke Wei Sun, and Qin Li
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Cement ,Matrix (chemical analysis) ,Reaction rate constant ,Waste management ,Chemical engineering ,Chemistry ,First-order reaction ,Kinetics ,General Medicine ,Hydration kinetics ,Analysis method - Abstract
Based on the hydration kinetics of the cement matrix material, the paper presents a chemical analysis method by means of analyzing the contents of Ca(OH)2 in cement matrix material. The kinetics constant for the cement, ash fly in the residues system solidified by recycled cement, ash fly was determined at different temperature. The hydration kinetics characteristic of the residues system after being hydrated 7 days is first order reaction.
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- 2013
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16. Effect of Shuanghu Qinggan Granule (双虎清肝颗粒) and Yigan Yiqi Jieyu Granule (乙肝益气解郁颗粒) plus lamivudine on chronic hepatitis B patients: A randomized double-blind placebo-controlled trial
- Author
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Guang Ji, Dong-sheng Cheng, Jian Jiang, Zhou Daqiao, Yu-fen Wang, Jun Li, Tie-jun Liu, Ke-wei Sun, Jian-jie Chen, Yi-ming Zhao, De-lu Tian, Wei Zhang, Rong-bing Wang, Zhi-hong Li, Lequan Min, Xiaoke Li, Shi-zhong Yang, Feng-zhen Shao, Yongan Ye, and Wei-guo Ma
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medicine.medical_specialty ,business.industry ,Granule (cell biology) ,Placebo-controlled study ,Lamivudine ,General Medicine ,Traditional Chinese medicine ,Pharmacology ,030226 pharmacology & pharmacy ,Gastroenterology ,law.invention ,Double blind ,03 medical and health sciences ,0302 clinical medicine ,Complementary and alternative medicine ,Randomized controlled trial ,Chronic hepatitis ,law ,Internal medicine ,medicine ,030211 gastroenterology & hepatology ,Pharmacology (medical) ,Clinical efficacy ,business ,medicine.drug - Abstract
Objective To observe the clinical efficacy and safety of Shuanghu Qinggan Granule (双虎清肝颗 粒, SQG) plus Yigan Yiqi Jieyu Granule (乙肝益气解郁颗粒, YYJG) combined with lamivudine (LAM) on chronic hepatitis B (CHB) patients.
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- 2016
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17. The Liquefaction Mechanism Research of Straw Fiber in Polyhydric Alcohol
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Ke Wei Sun, Qiu Ling Chen, and Chun Hong Zhang
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chemistry.chemical_compound ,Residue (chemistry) ,Column chromatography ,chemistry ,Hydroxyl value ,General Engineering ,food and beverages ,Organic chemistry ,Liquefaction ,Alcohol ,DEPT ,Straw ,Mass spectrometry - Abstract
Two key products were isolated and purified from liquid mixture composition of wheat straw, by means of a combination of organic solvent extraction and column chromatography. Their structures were identified on basis of nuclear magnetic resonance (1H-NMR, 13C-NMR, DEPT), mass spectrometry (MS), and infrared (IR). The mechanism of liquefaction of straw was inferred from the structures of products and changes of hydroxyl value and liquefaction residue, which make up the lack of mechanistic studies of overall utilization of plant fibers.
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- 2012
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18. Research on Mechanism of Architectural Wastes Solidified by Alkali-Activated Cement and Fly Ash
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Zhuo Yin Jiang, Ke Wei Sun, Qin Li, and Xiao Jun Zhou
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Cement ,Materials science ,Compressive strength ,Waste management ,Fly ash ,General Engineering ,Alkali activated ,Cementitious ,Pozzolan ,Micro morphology - Abstract
An comparison research on the effect of pozzolanic reactions of fly ashes in architectural wastes recycle is described in the paper. In the experiment, NaOH and Na2SO4-Ca(OH)2 were used to activate the pozzolanic activities in the fly ashes—cement system to solidify the architectural wastes. The macro and micro testing methods were used to test the compressive strength, phase and electronic micro morphology of the hydration of alkali-activated fly ashes—cement cementitious system. The testing result shows that proper alkali-activated fly ashes—cement cementitious architectural wastes can shorten the incubation time of the pozzolanic reactions of fly ashes, whi ch make the reactions of fly ashes more sufficient. So the hydration products of fly ashes —cement cementitious system with alkali additions were more than those of without alkali add itions, and the compressive strength of the alkali-activated fly ashes—cement cementitious system is higher than that of non alkali-activated fly ashes—cement cementitious system.
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- 2012
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19. Research on Environment-Friendly Soil Stabilizer Solidifying Buildings Residues for Paving Materials
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Qin Li and Ke Wei Sun
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Cement ,Materials science ,Compressive strength ,General Engineering ,Sediment ,Geotechnical engineering ,Composite material ,Porosity ,Durability ,Environmentally friendly ,Shrinkage ,Stabilizer (chemistry) - Abstract
Two groups of buildings residues was studied in the paper as to unconfined compressive strength, soaked unconfined compressive strength, shrinkage values, porosity. It is show that Q2 soil stabilizer can improve the micro-structure of solidified blocks of buildings sediment for dispersed sphere-shaped particles can be generated by Q2 soil stabilizer mixed with buildings residues and cement. As a result, the solidified block of buildings sediments was improved in the properties in its increased unconfined compressive strength, decreased shrinkage values and higher durability.
- Published
- 2011
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20. Research on the Mechanisms of Soil Agent Solidifying Buildings Residues
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Qin Li, Ke Wei Sun, and Qiu Ling Chen
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Cement ,Acicular ,Ettringite ,chemistry.chemical_compound ,Compressive strength ,Materials science ,Inlay ,chemistry ,Metallurgy ,General Engineering ,Composite material ,Micro morphology ,Stabilizer (chemistry) - Abstract
Comparson research as to the relationship between building residues solidified by cement and those solidified by soil stabilizer are made , and the unconfined compressive strength of them increased over time are analyzed in the paper. When the soil stabilizer is mixed with the building residues, the acicular ettringites acting as inlay or infilling are formed in the solidified body. This is the reason why their unconfined compressive strength are increased. Some relevances show that the more the acicular ettringite was formed, the higher the confined compressive strength of the solidified bodies would be, and vice versa.
- Published
- 2011
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21. Finite Element Analysis on Moisture Distribution within RAC under Standard Drying Conditions
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Xue Wang, Yuan Chen Guo, and Ke Wei Sun
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Stress (mechanics) ,chemistry.chemical_classification ,Work (thermodynamics) ,Aggregate (composite) ,Materials science ,Base (chemistry) ,chemistry ,Scientific method ,General Engineering ,Evaporation ,Composite material ,Finite element method ,Shrinkage - Abstract
With the mass diffusion module of ABAQUS, the moisture diffusion behavior of recycled aggregate concrete material (RAC) was investigated in this work. The simulation was carried out under the standard drying conditions (Ambient humidity: H=60%; Temperature: T=20°C). The results indicate that: with the dry age grows, the water evaporation begins from the RAC’s surface first, and the water concentration reaches the equilibrium value rapidly; then the evaporation process gradually extends to the interior, but the process is quit slowly. In moisture diffusion process, the water concentration takes on gradient distribution. the calculated value of water concentration matches well with the experiment results, and can provide a theoretical base to the caculation of drying shrinkage stress of RAC.
- Published
- 2011
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22. Preparation of Bio-Degradable Polyurethane Foams from Liquefied Wheat Straw
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Ke Wei Sun, Chang Hua Liu, Jian Chang Li, Qiu Ling Chen, and Ru Yan Li
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Materials science ,General Engineering ,Alcohol ,Biodegradation ,Straw ,Isocyanate ,Silicone oil ,Catalysis ,chemistry.chemical_compound ,chemistry ,Chemical engineering ,Diamine ,Polymer chemistry ,Polyurethane - Abstract
Bio-degradable polyurethane foams were prepared from the liquefied wheat straw alcohol by a reaction with isocyanate in the presence of stannous octoate, triethylene diamine and silicone oil. The influences of the catalyst, water, silicone oil, isocyanate index(IN) on the performance of the properties of the foams obtained were investigated. Furthermore, the chemical structures, thermal performance and degradation performance of the products were analyzed.
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- 2011
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23. Optimization Research on Structure Improvement of Stirring System for Preparation of Recycled Glass / Aluminum Matrix Composites with Stirring Casting Technique
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Bei Gang Zhang, Gui Ni Yao, Hua Yang Zhao, and Ke Wei Sun
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Glass recycling ,Materials science ,chemistry ,Casting (metalworking) ,Aluminium ,Aluminum matrix composites ,General Engineering ,Fluent ,chemistry.chemical_element ,Paddle ,Composite material ,Flow field - Abstract
this subject is to use recycled glass and recycled aluminum to prepare glass / aluminum matrix composites with stirring casting technique, and stirring tank is self-researched and developed. When determining stirring tank structure, it adopts Fluent to simulate the flow field for the factors (distance from upper paddles to liquid level, stirring paddle arranging angle and paddle interval) influencing internal structure, make the optimization research on the influence of these three factors to stirring effect, compare with the actual experiment results, and propose the resolutions to improve equipment structure.
- Published
- 2011
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24. Influence of temperature fluctuation on thermophilic anaerobic digestion of municipal organic solid waste
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Man-chang Wu, Ke-wei Sun, and Yong Zhang
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Environmental Engineering ,Cell Survival ,Methanogenesis ,Microorganism ,General Biochemistry, Genetics and Molecular Biology ,Methane ,Microbiology ,Bacteria, Anaerobic ,Hydrolysis ,chemistry.chemical_compound ,Cities ,General Pharmacology, Toxicology and Pharmaceutics ,Sewage ,General Veterinary ,Chemistry ,Thermophile ,Temperature ,General Medicine ,Hydrogen-Ion Concentration ,Fatty Acids, Volatile ,Archaea ,PH decrease ,Refuse Disposal ,Organic solid waste ,Anaerobic digestion ,Biodegradation, Environmental ,Environmental chemistry - Abstract
A laboratory-scale experiment was carried out to assess the influence of temperature fluctuation on thermophilic anaerobic digestion of municipal organic solid waste (MOSW). Heating failure was simulated by decreasing temperature suddenly from 55 degrees C to 20 degrees C suddenly; 2 h time is needed for temperature decrease and recovery. Under the conditions of 8.0 g/(L.d) and 15 d respectively for MOSW load and retention time, following results were noted: (1) biogas production almost stopped and VFA (volatile fatty acid) accumulated rapidly, accompanied by pH decrease; (2) with low temperature (20 degrees C) duration of 1, 5, 12 and 24 h, it took 3, 11, 56 and 72 h for the thermophilic anaerobic digestion system to reproduce methane after temperature fluctuation; (3) the longer the low temperature interval lasted, the more the methanogenic bacteria would decay; hydrolysis, acidification and methanogenesis were all influenced by temperature fluctuation; (4) the thermophilic microorganisms were highly resilient to temperature fluctuation.
- Published
- 2006
- Full Text
- View/download PDF
25. [Auxiliary treatment of HBV correlated hepatic failure by Chinese herbs: a systematic review of randomized controlled trials]
- Author
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Ruo-yu, Wang, Yu-fan, Zhou, Yu-tong, Fei, and Ke-wei, Sun
- Subjects
Complementary Therapies ,Humans ,Hepatitis B ,Liver Failure ,Drugs, Chinese Herbal ,Phytotherapy ,Randomized Controlled Trials as Topic - Abstract
To evaluate the effectiveness and safety of Chinese herbs as an adjuvant treatment for hepatitis virus B (HBV)-related hepatic failure.Data were retrieved through the Cochrane Hepato-Biliary Group Controlled Trials Register, The Cochrane Library, PubMed, CNKI, VIP, Wanfang Database, and ChiCTR by key words or free words such as hepatic failure, severe hepatitis, HBV, Chinese medicine, randomization, and control. Appendix references of related papers were taken as supplementary indices. According to requirement for Cochrane systematic evaluation, randomized clinical trials on assessing the effectiveness and safety of Chinese herbs as main or adjuvant treatment in treating HBV-related hepatic failure were methodologically assessed, data extracted and analyzed.Totally 21 trials on Chinese herbal medicine therapy versus standard medical therapy (involving 1 881 patients) were included. Most trials had unclear risk bias. In 5 studies on the mortality, 3 trials showed that the mortality was lower in the test group than in the control group [RR 0.40, 95% CI (0.20, 0.79), P = 0.0002]. In 6 randomized control trials, totally 20 papers reported the control of complications. Eight results showed Chinese herbal medicine therapy had better effect in controlling complications. The recurrence rate and assessment of the survival quality were reported. Considering secondary indicators, four trials showed Chinese herbal medicine therapy had better effect in lowering the ineffective rate, decreasing total bilirubin (TBIL), and elevating prothrombin activity (PTA). Other prescriptive analyses found that the overall effect on secondary indicators was better in the test group than in the control group, but not all the indicators were statistically different. Adverse reactions were only reported in two papers, showing no severe adverse reaction.According to present evidence, till now, we could not judge whether Chinese herbs, as an adjuvant treatment, could do any favor for lowering the incidence and recurrence of hepatic failure patients, and improving their survival qualities.
- Published
- 2014
26. [Effects of Bushen Jiedu Recipe and Jianpi Jiedu Recipe containing plasma on dendritic cells of chronic hepatitis B virus infection patients under different immune states]
- Author
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Song, Ou, Ke-Wei, Sun, Jian-Ping, Peng, Shuang-Lin, Qi, Jie, Wen, and Li, Hu
- Subjects
Adult ,Male ,Interferon-alpha ,Dendritic Cells ,HLA-DR Antigens ,Plasma ,Young Adult ,Hepatitis B, Chronic ,Case-Control Studies ,B7-1 Antigen ,Immune Tolerance ,Humans ,Female ,B7-2 Antigen ,Drugs, Chinese Herbal ,Phytotherapy - Abstract
To compare the effects of Bushen Jiedu Recipe (BJR) and Jianpi Jiedu Recipe (JJR) containing plasma on dendritic cells (DCs) of chronic hepatitis B virus (HBV) infection patients under different immune states.Recruited were 36 chronic HBV infection outpatients from First Affiliated Hospital of Hunan University of Traditional Chinese Medicine from April 2010 to January 2011. They were assigned to the immune tolerance group (18 cases) and the immune clearance group (18 cases).Another 10 healthy subjects were recruited as the healthy control group. Their anticoagulated peripheral venous blood was respectively collected. The peripheral blood mononuclear cells (PBMCs) were isolated and further extracted for incubating DCs. The DCs were intervened by BJR and JJR containing plasma. The morphology of DCs was identified. The expressions of CD1alpha, CD80, CD86, and HLA-DR were detected. The level of interferon-alpha (IFN-alpha) in the supernatant was observed by ELISA.The CD80 expression level was lower in the immune clear group than in the healthy control group before intervention (P0.05). The expression levels of CD80, CD86, and HLA-DR were lower in the immune tolerance group than in the healthy control group before intervention (P0.05).The IFN-alpha expression level was lower in the immune tolerance group and the immune clearance group than in the healthy control group before intervention (P0.05). The expression levels of CD80, HLA-DR, and IFN-alpha were lower in the immune tolerance group than in the immune clearance group before intervention (P0.05). Compared with the same group before intervention, the CD80 expression significantly increased in each treatment group (P0.05). After intervention the expression levels of CD80 and HLA-DR were higher in the immune tolerance group than in the immune clearance group in the same time phase, and the CD86 expression level was higher in the BJR group than in the immune clearance group in the same time phase, showing statistical difference (P0.05).The middle dose BJR and the small dose JJR both could promote the recovery of DCs in chronic HBV infection patients. Besides, BJR showed more prominent effects on the function of DCs in chronic HBV infection patients in the immune tolerance stage.
- Published
- 2013
27. [Effects of entecavir and Shenxian Yiganling combination therapy on patients with HBeAg-positive chronic hepatitis B for 48 weeks]
- Author
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Tao, Zhang, Ya, Wang, and Ke-Wei, Sun
- Subjects
Adult ,Male ,Guanine ,Middle Aged ,Antiviral Agents ,Young Adult ,Hepatitis B, Chronic ,Treatment Outcome ,DNA, Viral ,Humans ,Drug Therapy, Combination ,Female ,Hepatitis B e Antigens ,Prospective Studies ,Drugs, Chinese Herbal ,Phytotherapy - Abstract
To evaluate of the efficacy and safety of entecavir (ETV) combined with Shenxian Yiganling (SY) versus ETV therapy on patients with HBeAg-positive chronic hepatitis B (CHB) for 48 weeks.One hundred and sixty-four CHB patients were assigned to two groups with the cohort study: the ETV combined with SY treatment group and the ETV control group. The alanine aminotransferase (ALT), the undetectable HBV DNA level, and HBeAg negative conversion rate, and HBeAg serological negative conversion rate were observed before and after treatment.At week 48, there was no significant difference in the normalization of ALT levels (70.00% vs 67.61%, P0.05) and undetectable HBV DNA levels (72.50% vs 73.24%, P0.05) between the two groups. There was significant difference in the HBeAg negative conversion rate (39.44% vs 23.75%) and HBeAg serological negative conversion rate (32.39% vs 15.00%) (both P0.05).ETV combined with SY promoted the HBeAg serological negative conversion rate possibly through the recovery of the immune functions.
- Published
- 2012
28. [Study on the functions of peripheral dendritic cells in chronic hepatitis B virus infection patients of Gan-depression Pi-deficiency syndrome and Gan-Dan damp-heat syndrome under different immune states]
- Author
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Fang, He, Ke-wei, Sun, and Jian-ping, Peng
- Subjects
Adult ,Male ,T-Lymphocytes ,Dendritic Cells ,HLA-DR Antigens ,Interleukin-12 ,Young Adult ,Hepatitis B, Chronic ,Case-Control Studies ,B7-1 Antigen ,Humans ,Female ,B7-2 Antigen ,Medicine, Chinese Traditional ,Cells, Cultured - Abstract
To observe the functions of peripheral dendritic cells (DCs) in chronic hepatitis B virus (HBV) infection patients of Gan-depression Pi-deficiency syndrome (GPS) and Gan-Dan damp-heat syndrome (GDS) under different immune states, thus to study the features of the immune expressions of the two syndromes in chronic HBV infection, providing objective evidence for Chinese medicine syndrome typing.The 40 chronic HBV patients were randomly assigned to two groups according to the immune state. Of them, there were 20 chronic HBV patients (under the condition of immune clearance; consisting of 10 patients of GPS and 10 of GDS) and 20 chronic HBV carriers (under the condition of immune tolerance; consisting of 10 patients of GPS and 10 of GDS). Besides, 10 healthy graduate volunteers of Hunan University of Traditional Chinese Medicine were recruited as the healthy control group. Their peripheral blood mononuclear cells (PBMCs) were cultured in vitro. The exterior morphological features and ultrastructure were observed by inverted microscope and electron microscope. The expressions of HLA-DR, CD80, CD86, and CDIa of the DCs surface were detected. The secretory levels of IL-12 in the supernate of DCs were detected by ELISA reagent kit. The proliferation capacities of allogeneic mixed lymphocyte were detected using MTT. The function features of DCs in the chronic HBV patients of two syndrome types under different immune states were compared, thus analyzing the difference of each index between the two syndrome types.Compared with the healthy control group, the expression rates of CD86, CD80, and HLA-DR decreased in the HBV carriers group (of the two syndrome types), showing statistical difference (P0.05). The expression rate of CD80 decreased in the HBV group (of the two syndrome types), showing statistical difference (P0.05). The expression rates of CD86 and HLA-DR were lower in the GPS group than in the GDS group. The expression rate of CD80 was lower in the GPS group than in the GDS group, showing statistical difference (P0.05). The proliferation capacities of IL-12 and T lymphocytes were lower in the HBV patients group than in the healthy control group (P0.05). The proliferation capacities of IL-12 and T lymphocytes were lower in the GPS group than in the GDS group, showing statistical difference (P0.05).The functions of peripheral DCs in chronic HBV infection of patients of the GPS and the GDS under different immune states were different. The phenotype and function tests of DCs provided objective evidence for Chinese syndrome typing of chronic hepatitis B, thus reflecting the features of immune expressions of the two syndrome types and the immunology connotation.
- Published
- 2012
29. Resonant energy transfer assisted by off-diagonal coupling
- Author
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Ning Wu, Ke-Wei Sun, Zhe Chang, Yang Zhao, and School of Materials Science & Engineering
- Subjects
Physics ,Resonant inductive coupling ,Phonon ,Drop (liquid) ,Exciton ,Diagonal ,General Physics and Astronomy ,Science::Physics [DRNTU] ,Molecular Dynamics Simulation ,Molecular physics ,Acceptor ,Energy Transfer ,Models, Chemical ,Excited state ,Phonons ,Quantum Theory ,Physical and Theoretical Chemistry ,Dimerization ,Excitation - Abstract
Dynamics of resonant energy transfer of a single excitation in a molecular dimer system is studied in the simultaneous presence of diagonal and off-diagonal exciton-phonon coupling. It is found that the off-diagonal coupling plays an important role in the excitation energy transfer process. Coherent transfer can be found at arbitrary temperature for a non-vanishing off-diagonal coupling strength with an oscillation frequency of site populations that increases with the off-diagonal coupling strength. Furthermore, we identify a threshold of the off-diagonal coupling strength below which there exists an optimal temperature that maximizes the total population transfer from the initially excited monomer to the acceptor monomer at long times. As the off-diagonal coupling strength is increased beyond the threshold, however, the optimal temperature is found to abruptly drop to zero.
- Published
- 2012
30. Increasing biogas production of anaerobic fermentation with cellulase pretreatment on organic fraction of municipal solid waste
- Author
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Cheng-hong Zou, Jian-chang Li, Jiang-tao Shang, Juan He, and Ke-wei Sun
- Subjects
chemistry.chemical_classification ,Municipal solid waste ,biology ,Waste management ,Cellulase ,Raw material ,Pulp and paper industry ,chemistry.chemical_compound ,Biogas ,chemistry ,Biofuel ,biology.protein ,Fermentation ,Organic matter ,Cellulose - Abstract
When complex organic matter was used as feedstock in the process of anaerobic fermentation, the rate-limiting stage generally was thought of as the first stage, namely hydrolytic stage. Hence, if feedstock was hydrolyzed before it was loaded into a digester, the efficiency of anaerobic fermentation would be improved greatly. Based on this ideal, a cellulase pre-hydrolysis of organic fraction of municipal solid waste(OFMSW) to enhance biogas production was conducted in this paper. Firstly the single-factor experiment was used to investigate the effect of cellulase additive amount, hydrolytic temperature, hydrolytic time, pH and substrate concentration on the degree of hydrolysis. And then the hydrolyzed OFMSW was used as the substrate to investigate the influence of these hydrolytic factors on the batch biogas production. The result showed that, as compared to the control group (without cellulase pre-hydrolysis), the period of rapid biogas production in different experimental groups occurred ahead about 3–7 days, the biogas yield of VS was increased from 32.77% to 75.08%, and the methane yield of VS was increased from 35.35% to 113.19%.
- Published
- 2011
- Full Text
- View/download PDF
31. Experiment study on drying shrinkage deformation of recycled aggregate concrete
- Author
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Xue Wang, Yuan-chen Guo, Ke-wei Sun, and Long-fei Cheng
- Subjects
Cement ,Water reducer ,Cracking ,Aggregate (composite) ,Materials science ,Fly ash ,Geotechnical engineering ,Deformation (meteorology) ,Composite material ,Electronic mail ,Shrinkage - Abstract
Drying shrinkage deformation is one of the most important reasons which causes cracking of concrete materials. Mix design of C30 natural aggregate concrete(NAC) is used as reference, the experiment of drying shrinkage considering the influence of recycled aggregate replacement ratio and mixing amount of fly ash, water reducer, and expansive agent was made. The results show that: In the case of fixed amount of mixing water and cement content, the addition of water reducing agent and recycled aggregate increase the shrinkage deformation of recycled aggregate concrete(RAC); to a certain extent, the addition of fly ash can inhibit the shrinkage deformation of RAC; with the addition of expansive agent, the shrinkage deformation of RAC significantly reduce, and this inhibitory effect is stronger than fly ash's.
- Published
- 2011
- Full Text
- View/download PDF
32. Effect of Cyanoethylation Modified Secondary Fiber on Fibre-Reinforced Composites
- Author
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Ke-wei Sun, Chun-hong Zhang, and Peishi Sun
- Subjects
Materials science ,law ,Fiber ,Crystallization ,Composite material ,law.invention - Abstract
Cyanoethylated secondary fiber (CSF) were made from secondary fiber(SF) cyanoethylation,and the effect of cyanoethylation on SF and CSF/RHDPE composites were investigated. The reinforcing mechanism of CSF in composites was discussed. Compared with unmodifed fiber, modifed fiber improved interfacial compatibility between CSF and RHDPE, and resulted in enhancing the mechanical properties of CSF/RHDPE composites. Furthermore, The fibre mass fraction and nitrogen content of CSF affected the mechanical properties of CSF/RHDPE composites, When nitrogen content of CSF was 20.36% and content of CSF was 20wt%, composites show maximum mechanical properties. The influence degree of CSF addition on CSF/RHDPE composites' processability was smaller than SF/RHDPE composites. CSF weakened melting and crystallization properties of the RHDPE in the composites. The mechanical properties of CSF/RHDPE composites were better than those of SF/RHDPE. SEM observations on the fracture surface of the composites show that the fibre-matrix adhesion was improved after cyanoethylation treatments.
- Published
- 2010
- Full Text
- View/download PDF
33. Effect of Pretreated Secondary Fiber on Fibre-Reinforced Biodegradable Composites
- Author
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Chun-hong Zhang, Peishi Sun, and Ke-wei Sun
- Subjects
chemistry.chemical_classification ,Viscosity ,Thermoplastic ,Materials science ,chemistry ,Silane coupling ,Fiber ,Adhesive ,Adhesion ,Composite material ,Alkali metal ,Biodegradable composites - Abstract
The biodegradable composites made from secondary fiber(SF) and cyanoethylated secondary fiber(CSF) were prepared by press forming, and the effect of alkali pretreatment and combined pretreatment of alkali and silane coupling agent KH550 on secondary fiber and composites were investigated. The optimum content of SF is 10 wt% because the hot melt viscosity of CSF was higher than that of traditional thermoplastic resins,and interfacial adhesion strength between SF and CSF is weak. Alkali pretreatment and combined pretreatment of alkali and silane coupling agent KH550 on secondary fiber results in enhancing the mechanical of composites. Furthermore, compared with alkali pretreatment, composites reforced with combined pretreated of alkali and silane coupling agent KH550 SF show better mechanical properties,because of combined effect alkali and silane coupling agent KH550 resulting in improving interfacial adhesion strength between SF and CSF.
- Published
- 2010
- Full Text
- View/download PDF
34. Research on the Parameters of Environment-Friendly Recycled Road Materials
- Author
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Ke Wei Sun and Yuanchen Guo
- Subjects
Cement ,Aggregate (composite) ,Waste management ,Renewable Energy, Sustainability and the Environment ,business.industry ,Geography, Planning and Development ,Resilient modulus ,Development ,Compression (physics) ,Environmentally friendly ,Renewable energy ,Compressive strength ,Environmental science ,business ,General Environmental Science - Abstract
The feasibility of propagating road materials in the use of contracture wastes especially contented great amount waste bricks were researched in three aspects: Performance of recycled aggregate, mechanical properties of renewable road materials, compression - splitting indexes. Conclusions are as following: recycled aggregates contenting great amount waste bricks in place of natural aggregates are feasible from the point of view on technical and technological. The performances of recycled aggregates have a significant impact on properties of renewable road material. Whether it is cement stabilized RCA material or cements stabilized RCBA material, age and cement in the age-dose studies, with the increase in cement dose, mechanical properties growth trends are similar. Compared to unconfined compressive strength and resilient modulus, splitting strength is much closed in terms of growth trends or Growth value at the cement doses or ages. Good Relevance correlation are existed among resilient modulus, compressive strength and splitting strength: ,RCA: .
- Published
- 2009
- Full Text
- View/download PDF
35. [Carcinosarcoma of the maxillary sinus: a case report]
- Author
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Ke-Wei, Sun, Zhen, Dong, and An-Feng, Zhu
- Subjects
Carcinosarcoma ,Maxillary Sinus Neoplasms ,Humans ,Female ,Middle Aged - Published
- 2008
36. Knowledge Enhanced IT Service Management
- Author
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Hao Wang, Bo Yang, Liang Liu, Qian Ma, Ke Wei Sun, and Ying Chen
- Subjects
Nondeterministic algorithm ,Theoretical computer science ,Computer science ,Composite web services ,Probabilistic logic ,Systems design ,Statistical model ,Statistical analysis ,Rewriting ,Web service ,computer.software_genre ,computer - Abstract
The network delays, failures and randomization make the composite web service system nondeterministic and difficult to be analyzed. However a probabilistic model can capture and abstract these sources of non-determinism more precisely and enable statistical analysis and simulations. We propose probabilistic rewrite theories as a general semantic framework supporting high level specification of probabilistic systems that can be massively concurrent. With the following two additional assertions, assumption and commitment, probabilistic rewrite theories facilitate reasoning about the composition and verification of services integration. The PMaude, a rewriting methodology based tool in which probabilistic formal modeling and analysis can be used from the earliest phases of nondeterministic system design to uncover many errors and inconsistencies, and to reach high assurance for critical composite web service system.
- Published
- 2007
- Full Text
- View/download PDF
37. [Clinical observation on chronic severe hepatitis B treated by principles of cooling-blood and detoxicating combined with clearing-heat and resolving-damp or combined with strengthening-Pi and warming-yang]
- Author
-
Ke-wei, Sun, Bin, Chen, and Yu-hong, Huang
- Subjects
Adult ,Diagnosis, Differential ,Male ,Hepatitis B, Chronic ,Treatment Outcome ,Humans ,Female ,Medicine, Chinese Traditional ,Middle Aged ,Drugs, Chinese Herbal - Abstract
To observe the therapeutic efficacy on chronic severe hepatitis B (CSH) patients of Yanghuang and Yinhuang syndrome type by principles of cooling-blood and detoxicating combined with clearing-heat and resolving dampness (PA) or with strengthening-Pi and warming-yang (PB), respectively.Forty-three patients with CSH were randomly divided into two groups, group A (22 cases) treated with PA and group B (21 cases) with PB. The therapeutic efficacy, laying stress on the effect in eliminating jaundice, was observed.The efficacy in group B was effective in 19 cases (90.5%), and ineffective in 2 (9.5%), while in group A, effective in 16 (72.7%) and ineffective in 6 (27.3%). Levels of TBIL and ALT were significantly lower in both groups (P0.05 or P0.01), and the descending extent was greater, the thrombinogen activity was higher in group B than that in group A after treatment (P0.05), no significant difference in ALT was found between the two groups.The efficacy of PB is better than that of PA on CSH with Yanghuang and Yinghuang syndrome.
- Published
- 2006
38. Influence of temperature on performance of anaerobic digestion of municipal solid waste
- Author
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Ji-shi, Zhang, Ke-wei, Sun, Man-chang, Wu, and Lei, Zhang
- Subjects
Bacteria, Anaerobic ,Biodegradation, Environmental ,Nitrogen ,Temperature ,Methane ,Carbon ,Refuse Disposal - Abstract
The influence of temperature on the performance of anaerobic reactors for treating the organic fraction of municipal solid waste (OFMSW) was studied. Batch digestion of OFMSW was carried out for 32 d at different temperature (25 degrees C, 35 degrees C, 45 degrees C and 55 degrees C) conditions for total solid concentrations (TS) 17% with the ratio of total organic carbon to nitrogen (C/N) being, 25:1 respectively, while keeping other parameters constant such as inoculum, start-up pH, reactor volume (2 L) and so on. Temperature can influence the methanogenic bacteria activity, accordingly inhibiting the OFMSW biodegradation and stabilization efficiency. Anaerobic reactors excelled at TS reduction, total volatile solid reduction, chemical oxygen demand reduction, increasing cumulative biogas production, whose rate was at temperature (35 degrees C and 55 degrees C) conditions. Methane concentration in the biogas was above 65% in four reactors. In addition, the fluctuation of temperatures resulted in the biogas production variation. The data obtained indicated that temperature had a significant influence on anaerobic process.
- Published
- 2006
39. [Effect of temperature fluctuation on performance of thermophilic anaerobic digestion for treating organic fractions of municipal solid waste]
- Author
-
Man-chang, Wu and Ke-wei, Sun
- Subjects
Bacteria, Anaerobic ,Bioreactors ,Temperature ,Acetates ,Propionates ,Refuse Disposal - Abstract
The laboratory-scale daily fed experiment study was carried out to assess the effect of temperature fluctuation on performance of the thermophilic reactors for organic fraction of municipal solid waste (OFMSW). The temperature of the reactor was lowered from 55 degrees C to 20 degrees C in case of heating failure and the duration in the low temperature were 1, 5, 12 and 24h respectively. The time of downward and upward temperature were within 2h. The organic loading rate was 8.0 g (L x d)(-1) in the steady-state and retention time was 15 d. The results show that the biogas production almost stop and total VFA, VFA such as acetate and propionate are rapidly accumulated when the temperature fluctuated, accompanied by the fall in pH. But the pH values would be in the normal range for the high buffering capacity in the digesters. The delay time of methane production restored was 3, 11, 56 and 72h respectively. It showed the longer the duration in low temperature, the more the decay of methanogenic archaea. Temperature fall not only affected the methanogensis but also the hydrolysis and acidification. Thermophilic microorganisms appeared to be highly resilient during temperature fluctuated process.
- Published
- 2006
40. [Multicenter clinical study about the action of Fuzheng Huayu Capsule against liver fibrosis with chronic hepatitis B]
- Author
-
Jun Ye, Mo-Bin Wan, Ke-Wei Sun, Cheng Liu, Yi-Yang Hu, De-Chang Hu, Cheng-hai Liu, Xia-Qiu Zhou, Lie-Ming Xu, Xiong Cai, Zhi-Qing Zhang, Ping Liu, Bao-Zhang Tang, You-Kuan Yin, and Jia He
- Subjects
Adult ,Liver Cirrhosis ,medicine.medical_specialty ,Renal function ,Gastroenterology ,law.invention ,Randomized controlled trial ,Double-Blind Method ,Liver Function Tests ,law ,Internal medicine ,medicine ,Humans ,Aspartate Aminotransferases ,Gamma-glutamyltransferase ,Adverse effect ,Aged ,medicine.diagnostic_test ,biology ,business.industry ,Alanine Transaminase ,gamma-Glutamyltransferase ,Middle Aged ,Treatment Outcome ,Complementary and alternative medicine ,Alanine transaminase ,Liver ,Liver biopsy ,biology.protein ,Liver function ,Liver function tests ,business ,Drugs, Chinese Herbal ,Phytotherapy - Abstract
OBJECTIVE: To study the efficacy and safety of Fuzheng Huayu Capsule (FZHY Capsule) against liver fibrosis with chronic hepatitis B. METHODS: Multicentric, randomized, double blinded and paralleled control led trial was conducted on patients (aged between 18 and 65) with liver fibrosis in chronic hepatitis B Indexes observed: (1) hepatic histological changes and HBV markers were observed at 0 and 24th week during the treatment; serological indexes (HA, LN, P-III-P, IV-C) were determined and B ultrasound examination of spleen and liver was taken at 0, 12th, 24th week; liver function (during the period of follow-up, liver function and serological indexes for liver fibrosis were evaluated) were observed at 0, 6th, 12th, 18th, 24th week; (2) indexes for safety: blood and urine routine tests, renal function and ECG were examined. RESULTS: (1) Enrollment and demographic data: There was no significant difference between the trial (110 cases) and control group (106 cases) in demographic feature, vital signs, course of illness, history for drug anaphylaxis, history of previous therapy, liver function, serological indexes for liver fibrosis, liver histological examination (99 cases for test group, 96 cases for control group), HBV markers, and renal function, etc. (2) Histological pathological examination: 93 cases of liver histological examination were taken, of these 50 cases for the trial group and 43 cases for control group which turned out to be at S mean value of 2.33 and 2.11 respectively pretreatment according to criteria for liver fibrosis staging. Post-treatment, the trial showed a significant decrease with S value of 1.80 compared to that of pretreatment; however, there was no significant improvement in control group before and after the treatment with S mean value of 2.14. There was significant difference in reversing rate (decrease at least 1 stage according to criteria for liver fibrosis staging) between the trial (52%) and control (23.3%) after liver biopsy. The trial had a rather good effect on improving inflammatory activity and was superior to control group with a marked decrease of mean value of inflammatory activity and score of inflammation (P
- Published
- 2004
41. Combined use of siRNAs specific for TGF-β1, TGF-β1 RI and TGF-β1 RII synergistically inhibits the TGF-β/Smad signaling pathway in rats with acute liver injury
- Author
-
Rong-Quan Fu, Tao Zhang, Deming Tan, Shun-Ling Huang, Ke-Wei Sun, Zhongtian Peng, Guang-Hui Guo, and Fei Liu
- Subjects
Acute liver injury ,Small interfering RNA ,Chemistry ,Immunology ,Combined use ,Cancer research ,Tgf β smad signaling ,Transforming growth factor - Published
- 2009
- Full Text
- View/download PDF
42. Kondo effect for electron transport through an artificial quantum dot
- Author
-
Ke-Wei, Sun, primary and Shi-Jie, Xiong, additional
- Published
- 2006
- Full Text
- View/download PDF
43. Transmission of electron through an Aharonov–Bohm interferometer with a quantum dot in Coulomb blockade regime
- Author
-
Ke-Wei, Sun, primary and Shi-Jie, Xiong, additional
- Published
- 2004
- Full Text
- View/download PDF
44. Effect of Cyanoethylation Modified Secondary Fiber on Fibre-Reinforced Composites.
- Author
-
Chun-hong Zhang, Pei-shi Sun, and Ke-wei Sun
- Published
- 2010
- Full Text
- View/download PDF
45. Automatic model-based service hosting environment migration.
- Author
-
Liang Liu, Ying Li, Qian Ma, Ke Wei Sun, Ying Chen, and Hao Wang
- Published
- 2008
- Full Text
- View/download PDF
46. Multicenter clinical study on Fuzhenghuayu capsule against liver fibrosis due to chronic hepatitis B
- Author
-
Jun Ye, Jia He, Ping Liu, You-Kuan Yin, Mo-Bin Wan, De-Chang Hu, Cheng-Hai Liu, Lie-Ming Xu, Cheng Liu, Yi-Yang Hu, Ke-Wei Sun, Xiong Cai, Ren-Xing Zhou, Zhi-Qing Zhang, Bao-Zhang Tang, and Xia-Qiu Zhou
- Subjects
Adult ,Liver Cirrhosis ,Male ,medicine.medical_specialty ,Pathology ,Adolescent ,Viral Hepatitis ,Renal function ,Capsules ,Gastroenterology ,law.invention ,Hepatitis B, Chronic ,Randomized controlled trial ,law ,Internal medicine ,Humans ,Medicine ,Adverse effect ,Aged ,medicine.diagnostic_test ,business.industry ,Therapeutic effect ,Capsule ,General Medicine ,Middle Aged ,Hepatitis B ,medicine.disease ,Treatment Outcome ,Liver biopsy ,Female ,Liver function ,business ,Drugs, Chinese Herbal ,Follow-Up Studies - Abstract
AIM: To study the efficacy and safety of Fuzhenghuayu capsule (FZHY capsule, a capsule for strengthening body resistance to remove blood stasis) against liver fibrosis due to chronic hepatitis B. METHODS: Multicenter, randomized, double blinded and parallel control experiment was conducted in patients (aged from 18 to 65 years) with liver fibrosis due to chronic hepatitis B. Hepatic histologic changes and HBV markers were examined at wk 0 and 24 during treatment. Serologic parameters (HA, LM, P-III-P, IV-C) were determined and B ultrasound examination of the spleen and liver was performed at wk 0, 12 and 24. Liver function (liver function and serologic parameters for liver fibrosis) was observed at wk 0, 6, 12, 18 and 24. Blood and urine routine test, renal function and ECG were examined before and after treatment. RESULTS: There was no significant difference between experimental group (110 cases) and control group (106 cases) in demographic features, vital signs, course of illness, history for drug anaphylaxis and previous therapy, liver function, serologic parameters for liver fibrosis, liver histologic examination (99 cases in experimental group, 96 cases in control group), HBV markers, and renal function. According to the criteria for liver fibrosis staging, mean score of fibrotic stage(s) in experimental group after treatment (1.80) decreased significantly compared to the previous treatment (2.33, P
- Published
- 2005
- Full Text
- View/download PDF
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