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Search Results: 1 - 10 of 34921 matches for " Jingjing Zhou "
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Is It a Vain Hope That Museum Children Education Applies to All Children?
Zhou Jingjing
Review of Global Academics ,
Abstract: The museum education focusing on the children is different from adult acceptors for the mental development of the children presents obvious stage features. Therefore, a clear definition on the ages of the children in the service must be made. The children in different ages can find their own educational project groups in a short time according to their own categories and ages. To facilitate the branding of routine childhood education programs, improve the implementing benefit of childhood education programs and realize the maximization of resource utilization in the Museum Children Education, this study firstly generalizes and extracts one of the common problems that affect the implementing benefit of Chinese Museum Children Education project based on the case analysis – focus and age-group of service objects. Then this paper (artlcle) explores it step by step. Finally the article combines the analyses with the empirical researches on feedback information acquired in on-site observations and semi-structured interviews, to propose improvement suggestions for the problem.
Endothelial Neuropilin Disruption in Mice Causes DiGeorge Syndrome-Like Malformations via Mechanisms Distinct to Those Caused by Loss of Tbx1
Jingjing Zhou,Mohammad Pashmforoush,Henry M. Sucov
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0032429
Abstract: The spectrum of human congenital malformations known as DiGeorge syndrome (DGS) is replicated in mice by mutation of Tbx1. Vegfa has been proposed as a modifier of DGS, based in part on the occurrence of comparable phenotypes in Tbx1 and Vegfa mutant mice. Many additional genes have been shown to cause DGS-like phenotypes in mice when mutated; these generally intersect in some manner with Tbx1, and therefore impact the same developmental processes in which Tbx1 itself is involved. In this study, using Tie2Cre, we show that endothelial-specific mutation of the gene encoding the VEGFA coreceptor neuropilin-1 (Nrp1) also replicates the most prominent terminal phenotypes that typify DGS. However, the developmental etiologies of these defects are fundamentally different from those caused by absence of TBX1. In Tie2Cre/Nrp1 mutants, initial pharyngeal organization is normal but subsequent pharyngeal organ growth is impaired, second heart field differentiation is normal but cardiac outflow tract cushion organization is distorted, neural crest cell migration is normal, and palatal mesenchyme proliferation is impaired with no change in apoptosis. Our results demonstrate that impairment of VEGF-dependent endothelial pathways leads to a spectrum of DiGeorge syndrome-type malformations, through processes that are distinguishable from those controlled by Tbx1.
Synthesis, Design and Implementation of Ultra-Wideband Impulse Radio Active Mmic Matched Filters
Jingjing Xia;Choi Look Law;Yuan Zhou
PIER C , 2012, DOI: 10.2528/PIERC11100101
Abstract: In this paper, we present a comprehensive framework from synthesis to implementation of active matched filters for UWB Impulse Radio. The method delays and sums UWB pulses coherently to strengthen the signal over white Gaussian noise. Theoretical analysis shows that the signal peak is maximized against noise, and an arbitrary transfer function could be realized by adjusting filter parameters. To verify the concept, a four-stage matched filter operating in 3-5 GHz with 360 degrees phase delay is demonstrated first. It is implemented in a commercial 2-μm GaAs HBT process and achieves a power gain of 13.8 dB with a 10 dB bandwidth of 1.3 GHz. Based on a similar architecture, another design is presented but with only half of the delay. It has a power gain of 15.9 dB at the center frequency of 4 GHz and a 10 dB bandwidth of 2.3 GHz. An advantage of the proposed method is a precise control of the impulse response that can be matched to either symmetrical or asymmetrical UWB pulses by taking a time domain design approach.
Research of the ForCES Routing Optimization
Jingjing Zhou,Weiming Wang,Xudong Zhu
Research Journal of Applied Sciences, Engineering and Technology , 2013,
Abstract: The research on ForCES technology has made a great progress. However current researches on ForCES mainly focus on architecture and techniques. In order to ensure ForCES architecture network works well, it is significant to take account of performance (such as routing) optimization for ForCES architecture. In this paper, we introduced a minimizing sum of path-cost model based on multiple traffic matrices, combined with negative valence ring algorithm, to optimize the traffic at FE sides in ForCES architecture. At last, we give the feasibility discussion of the routing optimization for ForCES.
Asymptotic behavior of solutions of a reaction diffusion equation with free boundary conditions
Jingjing Cai,Bendong Lou,Maolin Zhou
Mathematics , 2014, DOI: 10.1007/s10884-014-9404-z
Abstract: We study a nonlinear diffusion equation of the form $u_t=u_{xx}+f(u)\ (x\in [g(t),h(t)])$ with free boundary conditions $g'(t)=-u_x(t,g(t))+\alpha$ and $h'(t)=-u_x(t,g(t))-\alpha$ for some $\alpha>0$. Such problems may be used to describe the spreading of a biological or chemical species, with the free boundaries representing the expanding fronts. When $\alpha=0$, the problem was recently investigated by \cite{DuLin, DuLou}. In this paper we consider the case $\alpha>0$. In this case shrinking (i.e. $h(t)-g(t)\to 0$) may happen, which is quite different from the case $\alpha=0$. Moreover, we show that, under certain conditions on $f$, shrinking is equivalent to vanishing (i.e. $u\to 0$), both of them happen as $t$ tends to some finite time. On the other hand, every bounded and positive time-global solution converges to a nonzero stationary solution as $t\to \infty$. As applications, we consider monostable and bistable types of nonlinearities, and obtain a complete description on the asymptotic behavior of the solutions.
Riesz Means of Dirichlet Eigenvalues for the Sub-Laplace Operator on the Engel Group  [PDF]
Jingjing Xue
Advances in Pure Mathematics (APM) , 2013, DOI: 10.4236/apm.2013.39A2001

In this paper, we are concerned with the Riesz means of Dirichlet eigenvalues for the sub-Laplace operator on the Engel group and deriver different inequalities for Riesz means. The Weyl-type estimates for means of eigenvalues are given.

The Exploration of Commercial Banks Serving to Technology Innovation Enterprises  [PDF]
Jingjing Gao
Technology and Investment (TI) , 2016, DOI: 10.4236/ti.2016.74017
This paper reviews the commercial banks’ previous exploration and attempt in the service of scientific and technological innovation enterprises. And afterwards, as now the government has officially launched policies and delineated pilot institutions and areas to carry out the investment and lending linkage business, this paper discusses the opportunities and challenges associated with commercial banks to engage in the investment and lending linkage business. Finally, this paper puts forward relevant proposals for commercial banks to serve technology innovation enterprises. Through post-event reviews and present discussions, hopefully this paper can provide some references for commercial banks to carry out the investment and linkage business.
Crowding-Out Effect of Exports on Domestic Consumption: An Analysis Based on Panel Data of Several Industries in China  [PDF]
Jingjing Li
Modern Economy (ME) , 2017, DOI: 10.4236/me.2017.82011
Abstract: This paper tries to use the data of 1998-2014 about nine departments (department of food, beverage and tobacco, department of fabric and clothing, department of car and motorcar and relative spare and accessory parts, department of medicine and the medical machine, department of culture, sports and relative equipment, minerals, building materials and chemical products division, house appliances division, computer auxiliary equipment division and else departments) to make the regression by Eviews 8.0. We find that department of food, beverage and tobacco and department of car and motorcar and relative spare and accessory parts, department of medicine and the medical machine, department of culture, sports and relative equipment do have crowding-out effect of exports on domestic consumption. Finally, in response to the policy of expanding the demand by analyzing the empirical result, we provide some recommendations from the perspective of export trade.
Investment Analysis about China’s IT Company—The Tencent Holdings Limited  [PDF]
Jingjing Che
Modern Economy (ME) , 2018, DOI: 10.4236/me.2018.96072
Abstract: As one of the most huge and potential markets in the world, China has a series of powerful IT companies, such as Tencent, Alibaba, and Xiaomi and so on. Based on such a market and huge population, these companies have very good future in developing and making profits. As a result, studying on them becomes more and more important for the market to know how these companies develop and how their stocks change. This paper focuses on the developing trend of Tencent and tries to provide a valuable investment suggestion for the market. At last, this paper finds that Tencent, as one of the biggest IT companies in China, has very great developing potential with its achievements in the game industry. The main contributions of this paper are that it has found future developing points of Tencent in the game industry and that it points out a new developing power in IT industry, the Entertainment power. The main limitation of this paper is that it has only checked one IT company, the Tencent, instead of comparing different companies to show how Tencent gets benefits from game industry.
Evaluation of Hepatic Cystic Echinococcosis’ CT image in Xinjiang Uygur Autonomous Region based on Kolmogorov Complexity Model  [PDF]
Jingjing Zhou, Murat Hamit, Abdugheni Kutluk, Chuanbo Yan, Li Li, Jianjun Chen, Yanting Hu, Dewei Kong, Weikang Yuan
Engineering (ENG) , 2012, DOI: 10.4236/eng.2012.410B015

Designing and developing computer-assisted image processing techniques to help doctors improve their diagnosis has received considerable interests over the past years. In this paper, we used the kolmogorov complexity model to analyze the CT images of the healthy liver and multiple daughter hydatid cysts. Before the complexity characteristic calculating, the image preprocessing methods had been used for image standardization. From the kolmogorov complexity model, complexity characteristic were calculated in order to quantify the complexity, between healthy liver and multiple daughter hydatid cysts. Then we use statistical method to analyze the complexity characteristic of those two types of images. Our preliminary results show that the complexity characteristic has statistically significant (p<0.05) to analyze these two types CT images, between the healthy liver and the multiple daughter hydatid cysts. Furthermore, the result leads us to the conclusion that the kolmogorov complexity model could use for analyze the hydatid disease and will also extend the analysis the other lesions of liver.

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