15 results on '"Dong, Xiaoying"'
Search Results
2. Microaerobic Desulfurization in the Semi-Dry Fermentation of Cow Manure
- Author
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Lijie Shao, Dalei Zhang, Jianing Zhai, Liu Peihan, Wei Kou, Yu Meiling, Lei Feng, Yan Zhou, and Dong Xiaoying
- Subjects
Biomaterials ,Renewable Energy, Sustainability and the Environment ,Chemistry ,Bioengineering ,Fermentation ,Pulp and paper industry ,Cow dung ,Flue-gas desulfurization - Published
- 2019
3. pH-Sensitive Mixed Micelles Assembled from PDEAEMA-PPEGMA and PCL-PPEGMA for Doxorubicin Delivery: Experimental and DPD Simulations Study
- Author
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Jianwei Guo, Hangbo Yue, Yaoxi Chen, Chufen Yang, Dongyu Zhu, Dong Xiaoying, Wenyao Liu, Tang Shengqiu, Wenjing Lin, Cong Yuan, and Jiayu Xiao
- Subjects
Biocompatibility ,mixed micelles ,Pharmaceutical Science ,lcsh:RS1-441 ,Ether ,02 engineering and technology ,010402 general chemistry ,Methacrylate ,01 natural sciences ,Micelle ,Article ,lcsh:Pharmacy and materia medica ,chemistry.chemical_compound ,well-controlled release ,drug delivery system ,pH-responsive ,chemistry.chemical_classification ,dissipative particle dynamics simulation ,technology, industry, and agriculture ,Polymer ,Permeation ,021001 nanoscience & nanotechnology ,0104 chemical sciences ,chemistry ,Chemical engineering ,Critical micelle concentration ,0210 nano-technology ,Ethylene glycol - Abstract
To decrease critical micelle concentration (CMC), improve stability, and keep high drug-loading capacity, three pH-sensitive mixed micelles applied for anticancer drug controlled delivery were prepared by the mixture of polymers poly (N,N-diethylaminoethyl methacrylate)-b-poly(poly(ethylene glycol) methyl ether methacrylate) (PDEAEMA-PPEGMA) and polycaprolactone-b-poly (poly(ethylene glycol) methyl ether methacrylate) (PCL-PPEGMA), which were synthesized and confirmed by 1H NMR and gel permeation chromatographic (GPC). The critical micelle concentration (CMC) values of the prepared mixed micelles were low, and the micellar sizes and zeta potentials of the blank mixed micelles demonstrated good pH-responsive behavior. Combined experimental techniques with dissipative particle dynamics (DPD) simulation, the particle sizes, zeta potentials, drug loading content (LC), encapsulation efficiency (EE), aggregation morphologies, and doxorubicin (DOX) distribution of the mixed micelles were investigated, and the high DOX-loading capacity of the mixed micelles was found. Both in vitro DOX release profiles and DPD simulations of the DOX dynamics release process exhibited less leakage and good stability in neutral conditions and accelerated drug release behavior with a little initial burst in slightly acidic conditions. Cytotoxicity tests showed that the polymer PDEAEMA-PPEGMA and the blank mixed micelles had good biocompatibility, and DOX-loaded mixed micelles revealed certain cytotoxicity. These results suggest that the drug-loaded mixed micelles that consisted of the two polymers PDEAEMA-PPEGMA and PCL-PPEGMA can be new types of pH-responsive well-controlled release anticancer drug delivery mixed micelles.
- Published
- 2019
4. Study on the Potential Mechanism of Methane Production by Anaerobic Hydrolytic Acidification with Different Substrate Concentration of Food Waste
- Author
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Lei Feng, Ning Wang, Liu Peihan, Dalei Zhang, Wei Kou, Yu Meiling, Lijie Shao, and Dong Xiaoying
- Subjects
Biomaterials ,Food waste ,Hydrolysis ,Renewable Energy, Sustainability and the Environment ,Chemistry ,Environmental chemistry ,Bioengineering ,Methane production ,Anaerobic exercise ,Potential mechanism ,Substrate concentration - Published
- 2018
5. Biogas by two-stage microbial anaerobic and semi-continuous digestion of Chinese cabbage waste
- Author
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Kou Wei, Yan Wang, Dalei Zhang, Dong Xiaoying, Cao Yanxin, and Shao Lijie
- Subjects
Environmental Engineering ,Waste management ,biology ,Hydraulic retention time ,Chemistry ,General Chemical Engineering ,General Chemistry ,Methanosarcina ,biology.organism_classification ,Biochemistry ,Anaerobic digestion ,Reduction potential ,Biogas ,Food science ,Digestion ,Anaerobic exercise ,Mesophile - Abstract
Anaerobic digestion of Chinese cabbage waste was investigated through a pilot-scale two-stage digester at a mesophilic temperature of 37 °C. In the acidification digester, the main product was acetic acid, with the maximum concentration of 4289 mg·L − 1 on the fourth day, accounting for 50.32% of total volatile fatty acids. The oxidation reduction potential (ORP) and NH 4 + -N level decreased gradually with hydraulic retention time (HRT) of acidification. In the second digestion phase, the maximum methanogenic bacterial concentration reached 9.6 × 10 10 ml − 1 at the organic loading rate (OLR) of 3.5–4 kg VS·m − 3 , with corresponding HRT of 12–16 days. Accordingly, the optimal biogas production was 0.62 m 3 ·(kg VS) − 1 , with methane content of 65%–68%. ORP and NH 4 + -N levels in the methanizer remained between − 500 and − 560 mV and 2000–4500 mg·L − 1 , respectively. Methanococcus and Methanosarcina served as the main methanogens in the anaerobic digester.
- Published
- 2015
6. Response of Soil Phosphorus Required for Maximum Growth of Asparagus officinalis L. to Inoculation of Arbuscular Mycorrhizal Fungi
- Author
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Ren Fang Shen, Jing Xu, Liang Linzhou, Ping Xu, Dong Xiaoying, and Peikun Jiang
- Subjects
biology ,Inoculation ,Phosphorus ,Crop yield ,fungi ,Soil Science ,chemistry.chemical_element ,engineering.material ,biology.organism_classification ,Spore ,Horticulture ,Human fertilization ,chemistry ,Botany ,engineering ,Asparagus ,Colonization ,Fertilizer - Abstract
Fertilizer application efficiently increases crop yield, but may result in phosphorus (P) accumulation in soil, which increases the risk of aquatic eutrophication. Arbuscular mycorrhizal fungi (AMF) inoculation is a potential method to enhance P uptake by plant and to reduce fertilizer input requirements. However, there has been limited research on how much P application could be reduced by AMF inoculation. In this study, a pot experiment growing asparagus (Asparagus officinalis L.) was designed to investigate the effects of AMF inoculation and six levels of soil Olsen-P (10.4, 17.1, 30.9, 40.0, 62.1, and 95.5 mg kg−1 for P0, P1, P2, P3, P4 and P5 treatments, respectively) on root colonization, soil spore density, and the growth and P uptake of asparagus. The highest root colonization and soil spore density were both obtained in the P1 treatment (76% and 26.3 spores g−1 soil, respectively). Mycorrhizal dependency significantly (P < 0.05) decreased with increasing soil Olsen-P. A significant correlation (P < 0.01) was observed between mycorrhizal P uptake and root colonization, indicating that AMF contributed to increased P uptake and subsequent plant growth. The quadratic equations of shoot dry weight and soil Olsen-P showed that AMF decreased the P concentration of soil required for maximum plant growth by 14.5% from 67.9 to 59.3 mg Olsen-P kg−1. Our results suggested that AMF improved P efficiency via increased P uptake and optimal growth by adding AMF to the suitable P fertilization.
- Published
- 2014
7. Effect of polymerin situsynthesized from methyl methacrylate and styrene on the morphology, thermal behavior, and durability of wood
- Author
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Lu Zeguang, Dong Xiaoying, Liu YiXing, Li YongFeng, and Jia Wanda
- Subjects
chemistry.chemical_classification ,Thermogravimetric analysis ,Materials science ,Polymers and Plastics ,Composite number ,General Chemistry ,Dynamic mechanical analysis ,Polymer ,Surfaces, Coatings and Films ,chemistry.chemical_compound ,chemistry ,Materials Chemistry ,Thermal stability ,In situ polymerization ,Composite material ,Methyl methacrylate ,Glass transition - Abstract
A novel fast-growing poplar wood, Populus ussuriensis Kom, was prepared into wood-polymer composite by the in situ polymerization of methyl methacrylate and styrene through a vacuum/pressure and subsequent catalyst-thermal process. scanning electron microscopy observation, FTIR, X-ray diffraction, dynamic mechanical analysis, and thermogravimetric/derivative thermogravimetric analysis indicated that the resulted polymer well filled up wood cell lumen in an amorphous form and reinforced wood matrix, which resulted in the improvement of glass transition temperature, storage modulus, and thermal stability of wood. The decay resistance and dimensional stability of wood were also improved. Such wood-based composite could be potentially used as reinforced material in construction fields. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
- Published
- 2012
8. Four-Diagnoses Auxiliary Apparatus based on Chinese Medicine in Health Evaluation and Constitution Identification
- Author
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Niu Xin, Wang Jing, Li Haiyan, Zhu Qingwen, Guo Zhou, Yang Xuezhi, and Dong Xiaoying
- Subjects
medicine.medical_specialty ,Medical education ,Traditional medicine ,business.industry ,Constitution ,Process (engineering) ,media_common.quotation_subject ,Social change ,Alternative medicine ,Traditional Chinese medicine ,Promotion (rank) ,medicine ,Identification (biology) ,Medical diagnosis ,business ,media_common - Abstract
The understanding of health has deepened with social development, scientific improvement, and environmental changes. The focus has changed from disease-oriented to health-oriented viewpoint. Hence, it is important to evaluate health using objective and accurate criteria. The four-diagnosis methods and syndrome differentiation are focused on differences among individuals according to the yin, yang, qi, and blood conditions. These differences are closely related to the constitution of a subject. The promotion of constitution identification among healthy and subhealthy groups and patients is beneficial for subjects to understand their body characteristics. It is important in daily health cultivation and disease prevention. Digital and objective information of a subject is acquired by the traditional Chinese medicine (TCM) Four-Diagnosis Auxiliary Apparatus efficiently and accurately. The automatic extraction and recognition of all the information is an important step in the diagnosis and constitution identification process by TCM.
- Published
- 2011
9. Organizational Ambidexterity Building via Strategic Learning and Business Learning
- Author
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Yu Yan, Yan Mengling, and Dong Xiaoying
- Subjects
Strategic planning ,Knowledge management ,Business continuity ,business.industry ,Organizational learning ,Strategic learning ,Single-subject design ,business ,Ambidexterity - Abstract
Organizational ambidexterity, defined as the simultaneously pursuit of both exploitation and exploration activities, is essential for organizations' survival, thrive and mature. However, the building of this capability is still ambiguous in prior literatures. This paper draws on the organizational learning theories, presents how two types of learning (i.e. strategic learning and business learning) and their interaction contribute to the dynamic evolutionary of organizational ambidexterity. We conducted longitudinal single case study on an outstanding Chinese high-tech firm (Huawei) by revealing its evolutionary journey. Our study reveals that exploration and exploitation are distinctive but also closely associated, and that organizational ambidexterity is accumulative and should be constructed across multiple levels. Representative strategic and business learning activities and principles are also identified.
- Published
- 2014
10. The Internet and its impact on developing countries: examples from China and India
- Author
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T. Kanti Srikantaiah and Dong Xiaoying
- Subjects
Community and Home Care ,Economic growth ,Management information systems ,business.industry ,Information sharing ,Information technology management ,Information system ,Information technology ,The Internet ,Information industry ,Information infrastructure ,Marketing ,business - Abstract
The Internet has significantly changed information management in developed countries through creating pressures to improve communication systems and develop more user friendly environments for information sharing. Now the Internet is penetrating developing countries, changing information practices in various sectors. The Internet is changing traditional ways of conducting information business by establishing new sources of information and new methods of communication on a global basis. It has created pressure to update information/technology infrastructures. It has created competition by bringing many international and indigenous information technology vendors on to the same platform. It has helped policy makers take advantage of access to global sources of information. Discusses the role of the Internet and its impact on developing countries, including major issues associated with electronic information access and delivery. It focuses on the two most populous countries in the world, China and India, which are also information‐rich countries in the East‐Asia and South‐Asia regions respectively.
- Published
- 1998
11. Transition of Library and Information Science Education in China
- Author
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Dong Xiaoying
- Subjects
Structure (mathematical logic) ,business.industry ,Professional development ,Social environment ,Library science ,Information industry ,Library and Information Sciences ,Knowledge base ,Order (exchange) ,Political science ,ComputingMilieux_COMPUTERSANDEDUCATION ,China ,business ,Curriculum - Abstract
Library and information science education in China is in a period of transition. The changes in the social, economic and technological environment have introduced new requirements for the professional personnel. The growth of the information industry and the expansion of the labor market have motivated schools of library and information science to adjust their objectives, curriculum and knowledge structure in order to meet social needs. This article discusses the changing social environment in the 1990s and the challenges to professional education, and responses from schools. Based on the curriculum of 17 schools of library and information science in China provided at the Second Joint Annual Meeting of Deans held in 1995, the author provides data on required courses, specialized elective courses and non-specialized courses according to the frequency of each course appearing in the curriculum. The objectives are to determine the state-of-the-art structure of the knowledge base and to identify any consensus...
- Published
- 1997
12. The Development and Management of Secondary Information Systems and Services in China
- Author
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Dong Xiaoying
- Subjects
Library and Information Sciences - Published
- 1995
13. Characterization and durability of wood-polymer composite prepared by in-situ polymerization of methyl methacrylate and styrene
- Author
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Li Yongfeng, Dong Xiaoying, Gao Jiali, Fu Yunlin, and Liu YiXing
- Subjects
chemistry.chemical_classification ,Materials science ,technology, industry, and agriculture ,General Engineering ,General Physics and Astronomy ,General Medicine ,Polymer ,complex mixtures ,General Biochemistry, Genetics and Molecular Biology ,Styrene ,chemistry.chemical_compound ,Monomer ,chemistry ,Chemical engineering ,Polymerization ,Polymer chemistry ,Copolymer ,Methyl methacrylate ,Fourier transform infrared spectroscopy ,In situ polymerization ,General Agricultural and Biological Sciences - Abstract
The current study demonstrates the effect of in-situ formation of polymer from vinyl monomers on the morphology and durability of wood. Mixed monomers of methyl methacrylate (MMA) and styrene (St) (1:1 molar ratio) were effectively vacuum/pressure impregnated into the cellular structure of a fast-growing poplar wood, Populus ussuriensis Kom, and then underwent a catalyst-thermal process to polymerize and form wood-polymer composite. Scanning electron microscopy (SEM) observation shows that polymer converted from monomers almost filled up wood cell cavities. Fourier transform infrared (FTIR) analysis indicates that the polymer mainly physical interacted with wood matrix. X-ray diffraction (XRD) analysis suggests that the in-situ generated polymer mainly remained as an amorphous form in cell lumen. The block of wood cavities by polymer coupled with the water resistance of polymer resulted in remarkable improvement of decay resistance and dimensional stability of wood. Key words: Wood-polymer composite, characterization, morphology, durability, methyl methacrylate, styrene.
- Published
- 2012
14. TRANSITION OF LIBRARY AND INFORMATION SCIENCE EDUCATION IN CHINA: PROBLEMS AND PERSPECTIVES
- Author
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Dong Xiaoying and Zhang Shuhua
- Published
- 2003
15. TUSC3 accelerates cancer growth and induces epithelial-mesenchymal transition by upregulating claudin-1 in non-small-cell lung cancer cells
- Author
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Anja C. Roden, Giovanni Brandi, Kaican Cai, Hua Wu, Di Lu, Andrea Bille, Jie Lin, Simona Tavolari, Siyang Feng, Jianxue Zhai, Xiaoying Dong, Xiguang Liu, Feng, Siyang, Zhai, Jianxue, Lu, Di, Lin, Jie, Dong, Xiaoying, Liu, Xiguang, Wu, Hua, Roden, Anja C., Brandi, Giovanni, Tavolari, Simona, Bille, Andrea, and Cai, Kaican
- Subjects
Male ,0301 basic medicine ,Epithelial-Mesenchymal Transition ,Lung Neoplasms ,Mice, Nude ,Biology ,Cell Line ,03 medical and health sciences ,0302 clinical medicine ,Downregulation and upregulation ,Cell Movement ,Carcinoma, Non-Small-Cell Lung ,Cell Line, Tumor ,Claudin-1 ,medicine ,Animals ,Humans ,Neoplasm Invasiveness ,Epithelial–mesenchymal transition ,Lung cancer ,Claudin ,Cell Proliferation ,Mice, Inbred BALB C ,Gene knockdown ,Tumor Suppressor Proteins ,EMT ,Membrane Proteins ,Cancer ,Cell Biology ,Middle Aged ,TUSC3 ,medicine.disease ,Up-Regulation ,030104 developmental biology ,Real-time polymerase chain reaction ,030220 oncology & carcinogenesis ,Cancer research ,Female ,Signal transduction ,Non-small-cell lung cancer - Abstract
Lung cancer is the most frequent cause of cancer-related deaths worldwide, but its molecular pathogenesis is poorly understood. The tumor suppressor candidate 3 (TUSC3) gene is located on chromosome 8p22 and is universally acknowledged as a cancer suppressor. However, our research has demonstrated that TUSC3 expression is significantly upregulated in non-small-cell lung cancer compared to benign controls. In this study, we analyzed the consequences of TUSC3 knockdown or overexpression on the biological functions of non-small-cell lung cancer cell lines. To identify the molecules and signaling pathways with which TUSC3 might interact, we completed immunoblotting, quantitative polymerase chain reaction, microarray, co-immunoprecipitation, and immunofluorescence assays. We demonstrated that TUSC3 knockdown leads to decreased proliferation, migration, and invasion, and reduced xenograft tumor growth of non-small-cell lung cancer cell lines, whereas opposite results were observed with overexpression of TUSC3. In addition, TUSC3 knockdown suppressed epithelial-mesenchymal transition by downregulating the expression of claudin-1, which plays an indispensable role in EMT progress. On the contrary, overexpression of TUSC3 significantly enhanced EMT progress by upregulating claudin-1 expression. Overall, our observations suggest that TUSC3 accelerates cancer growth and induces the epithelial-mesenchymal transition in non-small-cell lung cancer cells; we also identified claudin-1 as a target of TUSC3.
- Published
- 2018
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