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Search Results: 1 - 10 of 124900 matches for " Wang Mao "
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The Research Fronts and Hotspots on Nanotechnology Based on Journal of Vacuum Science & Technology  [PDF]
Wang Yi, Mao Di
Open Journal of Social Sciences (JSS) , 2016, DOI: 10.4236/jss.2016.43010
Abstract:

Journal of Vacuum Science & Technology (JVST) serial journals are the official publications of American Vacuum Society. We search the nanotechnology-related references on JVST and obtain visual maps through a visual analysis tool, CiteSpace. The visual maps can help us understand the distribution of research institutions and cooperation, high-impact authors, core literatures, research hotspots and fronts of nanotechnology in the field of vacuum.

Technological Progress, Spatial Competition and Industrial Location: Estimation and Predictions of Cement Industry in Northwest China  [PDF]
Fei Wang, Qiliang Mao
Modern Economy (ME) , 2016, DOI: 10.4236/me.2016.79100
Abstract: This study estimates a theoretical multi-region industrial location model by adopting real statistics to investigate the intuition of shaping spatial pattern of economic activities in a case of cement industry in Northwest China. Based on the estimation of key parameters, we simulate the impact of technological progress on variation of location. We find that, given trade cost, with technological progress, operating cost decreases, it is profitable for firms to expand sale range. In long term, technological progress would induce server spatial competition and promote further spatial concentration of industry. Original areas with larger market and fine industrial base are still main agglomerations, while original peripheral areas are further to a downward trend, and parts of original areas located next to hot pot areas have become peripheries. Our study on influence of technological progress on industrial location confirms the importance of investigation on intuition of spatial pattern of economic activities. Technological progress is essentially achievement of sustainable development. However, neglecting substantial spatial competition induced by technology improvement turns against spatial allocation of resources. Hence, optimal location of industries is one of important factors to ensure sustainable development.
Database Development Based on MFC Application in Management of Curriculum Information  [PDF]
Mao Wang, Tuo Chen, Yong Jiang
Intelligent Information Management (IIM) , 2017, DOI: 10.4236/iim.2017.96013
Abstract: There are hundreds of records in the curriculum of our Language Learning Lab every semester and every record has several important properties. It takes too much time to manage the information in the traditional way and it always makes mistakes. Managing the information with database technology, designing program to access the database with Visual c tool, setting a combobox in the application UI and inquiring curriculum information by selecting the room name in the combobox. It is easy to operate the program for the staff members. The result is accurate, this way promotes the efficiency of managing information.
A Study on Parallel Computation Based on 3D Forward Algorithm of Gravity  [PDF]
Mao Wang, Yuanman Zheng, Changli Yao
International Journal of Geosciences (IJG) , 2017, DOI: 10.4236/ijg.2017.89060
Abstract: Interpretation of geophysical material is the prospecting method. Interpretation of Gravity-megnetic data is based on data processing and inversion. When the grid is divided into several million cells, the computing task is heavy and time-consuming. In order to increase efficiency of the 3D forward modeling, the paper will adopt MPI parallel algorithm and the several processes will deal with data in the method. Finally, we can gather the result. Through comparing the result of sequence algorithm with the result of MPI parallel algorithm, we can see the result is the same. When the number of processes is 2 to 8, the speed-up ratio is 1.97 to 5. The MPI parallel algorithm is very efficient.
Mood States Recognition of Rowing Athletes Based on Multi-Physiological Signals Using PSO-SVM  [PDF]
Jing Wang, Pei Lei, Kun Wang, Lijuan Mao, Xinyu Chai
E-Health Telecommunication Systems and Networks (ETSN) , 2014, DOI: 10.4236/etsn.2014.32002
Abstract:

Athletes have various emotions before competition, and mood states have impact on the competi- tion results. Recognition of athletes’ mood states could help athletes to have better adjustment before competition, which is significant to competition achievements. In this paper, physiological signals of female rowing athletes in pre- and post-competition were collected. Based on the multi-physiological signals related to pre- and post-competition, such as heart rate and respiration rate, features were extracted which had been subtracted the emotion baseline. Then the particle swarm optimization (PSO) was adopted to optimize the feature selection from the feature set, and combined with the least squares support vector machine (LS-SVM) classifier. Positive mood states and negative mood states were classified by the LS-SVM with PSO feature optimization. The results showed that the classification accuracy by the LS-SVM algorithm combined with PSO and baseline subtraction was better than the condition without baseline subtraction. The combination can contribute to good classification of mood states of rowing athletes, and would be informative to psychological adjustment of athletes.

Numerical Calculation of Seawater Temperature Sensing Based on Polydimethylsiloxane-Coated Microfiber Knot Resonator  [PDF]
Hongjuan Yang, Shanshan Wang, Kening Mao, Guoxiang Li, Jing Wang
Optics and Photonics Journal (OPJ) , 2014, DOI: 10.4236/opj.2014.44009
Abstract:

A seawater temperature sensing method based on polydimethylsiloxane-coated (PDMS-coated) microfiber knot resonator (MKR) is proposed, which has the advantages of high sensitivity and weak salinity dependence. The dependences of the temperature sensitivity on fiber diameter, coating thickness and probing wavelength are theoretically investigated and the range of coating thickness for weak salinity dependence is obtained. By optimizing the parameters of the seawater temperature sensing system, when the probing wavelength is 1550 nm, the fiber diameter is 1 μm, and the coating thickness is 5 μm, the sensitivity can reach to 0.197 nm/°C. Results shown here are beneficial to find the optimal parameters for the temperature sensors with high sensitivity and weak salinity dependence.

Metallic phases of Dong Ujimqin mesosiderite: A field emission scanning electron microscope study
Yanhua Mao,Daode Wang
Chinese Science Bulletin , 1999, DOI: 10.1007/BF02884745
Abstract: The microstructure of Fe-Ni metallic phases in Dong Ujimqin mesosiderite was studied using the field emission SEM. Taenite is characterized by a zoned structure, consisting of outer clear taenite and inner cloudy zone (CZ). CZ has a typical “island-honeycomb” microstructure. The average size of the island phase is about 358 nm, suggesting a cooling rate of ~ 0.5°C/Ma at low temperature (< 400°C). The Ni concentration profiles across kamacite and zoned taenite were also measured by electron probe microscope analysis (EPMA). Formation of the Fe-Ni metallic phases, microstructure in Dong Ujimqin mesosiderite was discussed based on the new low-temperature Fe-Ni phase diagram.
The Strategy Research of Modern Service Industry Development
Shumei Wang,Huiyuan Mao
Asian Social Science , 2012, DOI: 10.5539/ass.v8n2p185
Abstract: Accelerating the development of modern service industry has become the focus of our national development strategy. The international economic situation has been re-adjusted after the financial crisis. “Green economy” with the core of "clean energy" will turn into a highlight of any nation’s reviving in the economy and also of the globe’s economic recovery. Take advantage of the opportunity, modern service industry has gone anew on its aggregation and upgrade. It provided us a hard-won opportunity during the Post-crisis period. This paper discussed the strategy of Chinese modern service industry development by analyzing our country’s development status and existent conditionality in Chinese modern service industry after the economic crisis.
Tourism Management Professional Training Mode Innovation
Huiyuan Mao,Zeping Wang
Asian Social Science , 2010, DOI: 10.5539/ass.v6n7p87
Abstract: Tourism development puts forward higher requirement to tourism education of colleges and universities. How to adapt to the needs of times, training qualified personnel, construction of new training mode is the key. This paper, aiming at gap phenomenon between tourism professionals of colleges and universities and market demand, analyzes the existing problems in tourism education of colleges and universities and social requirements to the tourism students, puts forward establishing high quality and applied tourism professionals training mode.
Jitter Self-Compton Process: GeV Emission of GRB 100728A
J. Mao,J. Wang
Physics , 2012, DOI: 10.1088/0004-637X/748/2/135
Abstract: Jitter radiation, the emission of relativistic electrons in a random and small-scale magnetic field, has been applied to explain the gamma-ray burst (GRB) prompt emission. The seed photons produced from jitter radiation can be scattered by thermal/nonthermal electrons to the high-energy bands. This mechanism is called jitter self-Compton (JSC) radiation. GRB 100728A, which was simultaneously observed by the Swift and Fermi, is a great example to constrain the physical processes of jitter and JSC. In our work, we utilize jitter/JSC radiation to reproduce the multiwavelength spectrum of GRB 100728A. In particular, due to JSC radiation, the powerful emission above the GeV band is the result of those jitter photons in X-ray band scattered by the relativistic electrons with a mixed thermal-nonthermal energy distribution. We also combine the geometric effect of microemitters to the radiation mechanism, such that the "jet-in-jet" scenario is considered. The observed GRB duration is the result of summing up all of the contributions from those microemitters in the bulk jet.
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