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Search Results: 1 - 10 of 11774 matches for " Shusheng Qin "
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On Low-Carbon Technology  [PDF]
Jinfang Lv, Shusheng Qin
Low Carbon Economy (LCE) , 2016, DOI: 10.4236/lce.2016.73010
Abstract: Low-carbon technology generalizes all the means and methods for low-carbon or carbon-free. It suits the need of adapting to a low-carbon economy, reducing greenhouse gas emissions and preventing global warming. Low-carbon technology mainly includes carbon reduction technology, carbon-free technology, carbon removal technology, carbon management technology, resource saving and recycling technology. Low-carbon technology aims at carbon reduction. It’s harmonious, sustainable, efficient and international. On one hand, low-carbon technology is the key of developing low-carbon economy. On the other hand, it’s a significant means of relieving climate warming, energy crisis and sustainable development. A series of policies, laws, systems are the necessary safeguards for low-carbon technology development.
Establishment and characterization of murine bone marrow stromal macrophage line
Fenghua Qin,Shusheng Xie
Chinese Science Bulletin , 1998, DOI: 10.1007/BF02883926
Abstract: The authors established a murine bone marrow stromal cell line QXMSC1 by discarding the suspensible hematopoietic cells and passaging the adherent stromal cells many times in long-term bone marrow culture. QXMSC1 cells have been passaged 65 times for 15 months and immortalized. The mean number of QXMSC1 chromosomes is 66 ± 4. The appearance of the cells is elliptical. There are many pseudopods and mononuclei under the optical microscope. Many lisosomes and phagosomes in cytoplasm exist under the transmission electron microscope. There are no desmosome junction between the cells, no lipid drops, no intermediate filament. Vimentin is positive and keratin is negative by stain of immunocytochemistry. Nonspecific lipase staining is positive. These results indicate that QXMSC1 cells are murine bone marrow macrophages.
Establishment and characterization of murine bone marrow stromal macrophage line

Fenghua Qin,Shusheng Xie,

科学通报(英文版) , 1998,
Abstract: The authors established a murine bone marrow stromal cell line QXMSC1 by discarding the suspensible hematopoietic cells and passaging the adherent stromal cells many times in long-term bone marrow culture. QXMSC1 cells have been passaged 65 times for 15 months and immortalized. The mean number of QXMSC1 chromosomes is 66 ± 4. The appearance of the cells is elliptical. There are many pseudopods and mononuclei under the optical microscope. Many lisosomes and phagosomes in cytoplasm exist under the transmission electron microscope. There are no desmosome junction between the cells, no lipid drops, no intermediate filament. Vimentin is positive and keratin is negative by stain of immunocytochemistry. Nonspecific lipase staining is positive. These results indicate that QXMSC1 cells are murine bone marrow macrophages.
Effect of Ultrasound-Assisted Extraction of Phenolic Compounds on the Characteristics of Walnut Shells  [PDF]
Hannah Han, Shusheng Wang, Milan Rakita, Yanting Wang, Qingyou Han, Qin Xu
Food and Nutrition Sciences (FNS) , 2018, DOI: 10.4236/fns.2018.98076
Abstract: Walnuts are one of nature’s more waste-heavy products. 67% of the nut is shell and husk, low value by-products that are rich in phenolic compounds. The phenolic compounds extracted from walnut shells are potentially good natural sources of antioxidants for the food and pharmaceutical industries. In this study, phenolic compounds were extracted using an ultrasonic bath, an ultrasonic probe and a standard shaking method. The extraction yield achieved with an ultrasonic probe was 51.2 mg GAE/g DW, two times higher than both the shaking method and the ultrasonic bath method which were 20.6 mg GAE/g DW and 25.8 mg GAE/g DW, respectively. Phenolic extraction was further improved by a size reduction of the walnut shells. The best extraction yield of 52.8 mg GAE/g DW was attained when the particle size was between 45 - 100 mesh. The ultrasonic probe treatment is the best method for extraction of phenolic compounds from walnut shells. Scanning electron microscopy (SEM) imaging indicated that the ultrasonic probe treatment could better rupture the hard structure of the cells, increasing the penetration of solvents and thus the extraction yield.
OPTIMIZING AIRFLOW REVERSALS FOR KILN DRYING OF SOFTWOOD TIMBER BY APPLYING MATHEMATICAL MODELS
Pang,Shusheng;
Maderas. Ciencia y tecnología , 2004, DOI: 10.4067/S0718-221X2004000200001
Abstract: after experimental validation of a kiln-wide drying model, a single board drying model and a stress model for kiln drying of softwood timber, these models are integrated and used to investigate benefits of airflow reversals in smoothing moisture content distribution and in reducing drying stresses for commercial kiln drying. in the current study, a high temperature drying schedule (db/wb of 120/70°c and air velocity of 5 m/s) was simulated and 5 strategies for airflow reversal were evaluated. these strategies are: airflow reversal every hour; airflow reversal every 2 hours; airflow reversal every 3 hours and airflow reversal after 2 and 10 hours of drying. the results are compared to ?control? in which airflow is unidirectional (no reversal). it has been found that, for the moisture content distribution, the first reversal is critical and frequencies of subsequent flow reversals can be varied depending on the drying temperature used. however, more frequent airflow reversal has benefits in reducing drying stresses. these findings are consistent with observations in commercial kiln drying of softwood lumber
OPTIMIZING AIRFLOW REVERSALS FOR KILN DRYING OF SOFTWOOD TIMBER BY APPLYING MATHEMATICAL MODELS
Shusheng Pang
MADERAS : Ciencia y Tecnología , 2004,
Abstract: After experimental validation of a kiln-wide drying model, a single board drying model and a stress model for kiln drying of softwood timber, these models are integrated and used to investigate benefits of airflow reversals in smoothing moisture content distribution and in reducing drying stresses for commercial kiln drying. In the current study, a high temperature drying schedule (DB/WB of 120/70°C and air velocity of 5 m/s) was simulated and 5 strategies for airflow reversal were evaluated. These strategies are: airflow reversal every hour; airflow reversal every 2 hours; airflow reversal every 3 hours and airflow reversal after 2 and 10 hours of drying. The results are compared to ‘Control’ in which airflow is unidirectional (no reversal). It has been found that, for the moisture content distribution, the first reversal is critical and frequencies of subsequent flow reversals can be varied depending on the drying temperature used. However, more frequent airflow reversal has benefits in reducing drying stresses. These findings are consistent with observations in commercial kiln drying of softwood lumber
Influences of Tip Cooling Injection on Tip Clearance Control at Design and Off-Design Incidences
Maosheng Niu,Shusheng Zang
International Journal of Rotating Machinery , 2009, DOI: 10.1155/2009/160423
Abstract: A numerical investigation has been performed to study the influences of cooling injection from the blade tip surface on controlling tip clearance flow in an unshrouded, high-turning axial turbine cascade. Emphasis is put on the analysis of the effectiveness of tip injection when the approaching flow is at design and off-design incidences. A total of three incidence angles are investigated, ?7.4°, 0°, 0°, 0°, and 7.6°, 0° relative to the design value. The results indicate that even at the off-design incidences, tip injection can also act as an obstruction to the tip clearance flow and weaken the interaction between the passage flow and the tip clearance flow. It is also found that tip injection causes the tip clearance loss to be less sensitive to the incidences. Moreover, with injection, at all these incidences the heat transfer conditions are improved significantly on the blade tip surface in the middle and aft parts of blade. Thus, tip injection is proved to be an effective method of controlling tip clearance flow, even at off-design conditions. Beside that, an indirect empirical correlation is observed to be able to perform well in predicting the losses induced by tip clearance flow at design and off-design conditions, no matter whether air injection is active or not.
OPPORTUNITY AND CHALLENGE IN WOOD DRYING: QUALITY CONTROL AND ENERGY SAVING
Shusheng Pang,Lianbai Gu
MADERAS : Ciencia y Tecnología , 2006,
Abstract:
Online Query Scheduling on Source Permutation for Big Data Integration
Zimu Yuan,Shusheng Guo
Computer Science , 2015,
Abstract: Big data integration could involve a large number of sources with unpredictable redundancy information between them. The approach of building a central warehousing to integrate big data from all sources then becomes infeasible because of so large number of sources and continuous updates happening. A practical approach is to apply online query scheduling that inquires data from sources at runtime upon receiving a query. In this paper, we address the Time-Cost Minimization Problem for online query scheduling, and tackle the challenges of source permutation and statistics estimation to minimize the time cost of retrieving answers for the real-time receiving query. We propose the online scheduling strategy that enables the improvement of statistics, the construction of source permutation and the execution of query working in parallel. Experimental results show high efficiency and scalability of our scheduling strategy.
Study on the Corrosion Inhibition Characteristic of ZH and ZG Mannich Base Inhibitors  [PDF]
Shusheng Zhou, Kehua Li, Tiantian Tang, Dongpo Shi
Open Journal of Yangtze Oil and Gas (OJOGas) , 2017, DOI: 10.4236/ojogas.2017.23011
Abstract: ZG/ZH Mannich bases (acid corrosion inhibitors) were synthesized with benzaldehyde, 2-aminothiazole, acetophenone/cyclohexanone as raw materials, and selecting the appropriate proportion of reaction time, temperature and ratio of raw materials.The corrosion inhibition performance of two kinds of Mannich bases on N80 steel was investigated by means of mass loss method and electrochemical technique. The result of mass loss method showed that two kinds of inhibitors both had excellent effect on N80 steel in 15% hydro-chloric acid solution. Electrochemical technique showed that both ZG and ZH were a mainly anodic-controlling composite corrosion inhibitor, and their corrosion inhibition effect was further confirmed by AC impedance technique. The adsorption behavior between inhibitiors and the steel surface both abides by the Langmuir isotherm model.
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