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Search Results: 1 - 10 of 134030 matches for " WANG Jing "
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Simulation of Gas Discharge in Tube and Paschen’s Law  [PDF]
Jing Wang
Optics and Photonics Journal (OPJ) , 2013, DOI: 10.4236/opj.2013.32B073
Abstract:

According to the related theory about gas discharge, the numerical model of a gas discharge tube is established. With the help of particle simulation method, the curve of relationship between gas ignition voltage, gas pressure and electrode distance product is studied through computer simulation on physical process of producing plasma by DC neon discharge, and a complete consistence between the simulation result and the experimental curve is realized.

A Brief Review for Quasi-Periodic Oscillations in Neutron-Star Low-Mass X-Ray Binaries  [PDF]
Jing Wang
International Journal of Astronomy and Astrophysics (IJAA) , 2016, DOI: 10.4236/ijaa.2016.61006
Abstract: In accreting neutron star (NS) low-mass X-ray binaries (LMXBs), the turbulent flow in accretion disk may show magnetic structures. Its emission will vary in time due to inhomogeneous motions through and with the accretion flow. These emissions contribute to considerable X-ray variability on a wide range of timescales in all wavelengths, and down to milliseconds. In this article, we give a brief review for quasi-periodic oscillations (QPOs), one of a periodic X-ray variability, in NS/ LMXBs. Firstly, we give a brief introduction to NS/LMXBs and the fruitful QPO components. As an example, the energy dependence of normal branch oscillations in Scorpius X-1 is discussed. We mostly focus on the properties and mechanism of kilohertz QPOs—the fastest variability components that have the same order as the dynamical timescales of the innermost regions of accretion flow. Finally, we discuss the success and questions for theoretical interpretations and present the possible entry for investigation of nature of QPOs.
Perceptions of Individual Behavior in Green Event—From the Theory of Planned Behavior Perspective  [PDF]
Jing Wang
American Journal of Industrial and Business Management (AJIBM) , 2017, DOI: 10.4236/ajibm.2017.78070
Abstract: Being an indispensable component of tourism industry, the event industry is growing rapidly over the past decades in terms of diversity, size, number and popularity. Meanwhile, the issue of greening industry is at the epicenter of international concern nowadays. Obviously, not merely event organizers need to adopt various green strategies to greening the events, but also every individual has the responsibility to perform eco-friendlier behaviors to make the event greener. Therefore, this paper begins by a background introduction of the urgent environmental problems nowadays, current greening development of event industry, and present relevant researches. Then the literature review of related concepts and an example are provided. In the following section, the Theory of Planned Behavior is utilized as a framework to analyze the significance of every individual’s environmentally friendly behavior in the greening of events process. And then some implications are discussed. Finally, the paper concluded with the opinion that though the Theory of Planned Behavior is not comprehensive enough to change people’s actual behavior, it should be considered when event organizers plan and operate the event, since the greening event needs support and help from every individual.
Gravitational Higgs Mechanism in Inspiraling Scalarized NS-WD Binary  [PDF]
Jing Wang
International Journal of Astronomy and Astrophysics (IJAA) , 2017, DOI: 10.4236/ijaa.2017.73016
Abstract: We investigate the gravitational Higgs mechanism in the inspiraling scalarized neutron star-white dwarf (NS-WD) binaries, whose dynamics are described by the scalar-tensor theory. Because of the difference in binding energy of NS and WD, the orbital decay of scalarized NS-WD system actually sources an emission of dipolar gravitational scalar radiation, in addition to the tensor gravitational waves, which breaks the Lorentz invariance constructed in the framework of general relativity. The resulted gravitational scalar radiation field obtains a scalar-energy-density-dependent effective mass, arising from a gravitational scalar potential that consists of a monotonically decreasing self-interactions of gravitational scalar field and an increasing exponential coupling between the scalar field and the NS/WD matter. Owing to a thin-ring-orbit effect, the gravitational interactions encoded by the massive scalar field are screened in the region of binary orbit, with high density of stars’ scalar energy, which gives us the estimation for scalar masses of about 1021 eV/c2 and leads to a Yulkawa-like correction to the Newtonian potential of the binary system. We demonstrate that the radiated gravitational tensor waves, propagating in the Yukawa type of potential, gain a scalar-background-dependent mass term of the order of 1023 eV/c2.
Identify Social Enterprises  [PDF]
Jing Wang
American Journal of Industrial and Business Management (AJIBM) , 2018, DOI: 10.4236/ajibm.2018.87114
Abstract: Social enterprises have become an inevitable trend of future social development. At present, the development of Chinese social enterprises faces internal and external adversities, and the prospects of the development of social enterprises are not clear. In order to build a good environment for the development of domestic social enterprises, this article fully draws on international experience and combines with Chinas actual conditions, and evaluates the existing standards of certification for civil society enterprises in China from five dimensions: organizational goals, income sources, profit distribution, asset disposal, and profit distribution. On this basis, further proposals are proposed to improve public awareness of social enterprises and lay a practical foundation for future legislative work.
Design of Multi-User Electric Power Management Device  [PDF]
Weiqing Tao, Jing Wang
Energy and Power Engineering (EPE) , 2010, DOI: 10.4236/epe.2010.22018
Abstract: The current consumption method of Electric Power Industry is “electricity consumption first, paying for it later”. The trend of consumption method is Pre-order Electricity. If we adopt the Pre-order Electricity System, we need to replace Traditional Energy Meter with Prepayment Energy Meter. But this alteration is costly. And the alarm action of Prepayment Energy Meter are bells and alarm lamp, users can not receive alarm information timely. In this paper, we present the design of Multi-user Electric Power Management Device. The device uses TMS320F2812 as CPU, with peripheral devices such as mobile phone communication module MC55, so the device supports remote operation and sends alarm information via SMS, it also can communicate with the master station by GPRS. The device can be seamlessly integrated into the existing power system in order to read meter, achieve billing and Pre-order Electricity functions. In addition, the device has the Harmonic Measurement function, so it is a high cost-effective application.
Performance Study of Multi-Path in VANETs and Their Impact on Routing Protocols  [PDF]
Jing Wu, Yuhao Wang
Wireless Engineering and Technology (WET) , 2011, DOI: 10.4236/wet.2011.23018
Abstract: Modeling complicated vehicular traffic behavior and analyzing effects on the communication performance of routing protocols taken by environmental factors have been a challenging task for the past several years. In this paper, we study the performance of multi-path routing protocol. Then, we investigate both multi-path and single-path routing protocol and analyze characteristics such as network connectivity, vehicle-node density etc. To better understand this phenomenon, we use mobility model with different parameters and evaluate the performance of routing protocols (Ad-hoc On-Demand Distance Vector and Ad-hoc On-demand Multipath Distance Vector routing protocols) through NS2 platform. The simulation results show the significance of multi-path on the throughput, loss and average delay of VANETs. The results of this paper may be used to study designing route protocols and applications of VANET.
A Self-Adaptive Parallel Encryption Algorithm Based on Discrete 2D-Logistic Map  [PDF]
Jing Wang, Guoping Jiang
International Journal of Modern Nonlinear Theory and Application (IJMNTA) , 2013, DOI: 10.4236/ijmnta.2013.21A011
Abstract:

A self-adaptive parallel encryption algorithm based on discrete 2D-Logistic map is developed according to the position scrambling and diffusion of multi-direction in variable space of spatial chaos. The binary sequences b1b2b3···bn are obtained according to the user key, in which the binary sequence 0 and 1 denote distribution mode of processors and the number of binary sequence n denotes cycle number. Then the pseudorandom 2D matrix is generated by 2D-Logistic map, and adaptive segmentation is applied in image matrix and pseudorandom matrix according to the value and the number of binary sequence. The parallel operation is used among blocks to improve efficiency and meet real-time demand in transmission processes. However, the pixel permutation is applied in partitioned matrix through ergodic matrix generated by pseudo-random matrix-block to decrease the correlation of adjacent pixels. Then the pixel substitution is used for fully diffusing through cipher block chaining mode until n cycles. The proposed algorithm can meet the three requirements of parallel operation in image encryption and the real-time requirement in transmission processes. The security is proved by theoretical analysis and simulation results.

Inspection of Kindergarten Teacher-Children Interactions
—A Case Study in China
 [PDF]

Jing Li, Wei Wang
Open Journal of Social Sciences (JSS) , 2014, DOI: 10.4236/jss.2014.28016
Abstract: With the purpose of improving the efficiency of teacher-children interactions and enhancing the quality of pre-school education, the writer uses 20 kindergartens in urban areas of Chongqing as samples to study the teacher-children interactions through observation. The findings show that: 1) The teacher-children interaction is unbalanced, mainly presenting as the teacher-centered “asym-metrical interdependent interactions”. Interactions initiated by the teacher and positive emotions of the children during these interactions are obviously more than those initiated by the children. 2) Interactions between the teacher and the children lack emotional depth. In the interactions, the children response less although they participate more; major methods of initiating and responding to the interactions are non-verbal actions, short or perfunctory replies; and most contents of the interactions are events without touching upon emotions.
Testing for Spatial Correlations with Randomly Missing Observations in the Dependent Variable  [PDF]
Jing Gao, Wei Wang
Theoretical Economics Letters (TEL) , 2014, DOI: 10.4236/tel.2014.48079
Abstract: We consider LM tests for spatial correlations in the spatial error model (SEM) and spatial autoregressive model (SAM) with randomly missing data in the dependent variable. We derive the formulas of the LM test statistics and provide finite sample performance of the LM tests through Monte Carlo experiments.
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