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Search Results: 1 - 10 of 14993 matches for " René Simbizi "
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Frobenius Series Solutions of the Schrodinger Equation with Various Types of Symmetric Hyperbolic Potentials in One Dimension  [PDF]
Hippolyte Nyengeri, René Simbizi, Audace Girukwishaka, Rénovat Nizigiyimana, Eugène Ndenzako
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104728
The Schrodinger equation (SE) for a certain class of symmetric hyperbolic potentials is solved with the aid of the Frobenius method (FM). The bound state energies are given as zeros of a calculable function. The calculated bound state energies are successively substituted into the recurrence relations for the expanding coefficients of the Frobenius series representing even and odd solutions in order to obtain wave functions associated with even and odd bound states. As illustrative examples, we consider the hyperbolic Poschl-Teller potential (HPTP) which is an exactly solvable potential, the Manning potential (MP) and a model of the Gaussian potential well (GPW). In each example, the bound state energies obtained by means of the FM are presented and compared with the exact results or the literature ones. In the case of the HPTP, we also make a comparison between exact bound state wave functions and the eigenfunctions obtained by means of the present approach. We find that our results are in good agreement with those given by other methods considered in this work, and that our class of potentials can be a perfect candidate to model the GPW.
Fibonacci Congruences and Applications  [PDF]
René Blacher
Open Journal of Statistics (OJS) , 2011, DOI: 10.4236/ojs.2011.12015
Abstract: When we study a congruence T(x) ≡ ax modulo m as pseudo random number generator, there are several means of ensuring the independence of two successive numbers. In this report, we show that the dependence depends on the continued fraction expansion of m/a. We deduce that the congruences such that m and a are two successive elements of Fibonacci sequences are those having the weakest dependence. We will use this result to obtain truly random number sequences xn. For that purpose, we will use non-deterministic sequences yn. They are transformed using Fibonacci congruences and we will get by this way sequences xn. These sequences xn admit the IID model for correct model.
The Third Kind Of Particles  [PDF]
ShaoXu Ren
Journal of Modern Physics (JMP) , 2014, DOI: 10.4236/jmp.2014.59090

There are two kinds of spin particles in nature, the Boson and the Fermion.(For more information, please refere to the PDF.)

The Origins of Bosons and Fermions  [PDF]
ShaoXu Ren
Journal of Modern Physics (JMP) , 2014, DOI: 10.4236/jmp.2014.517181
Abstract: This paper proposes that all Bosons and all Fermions originate from even more elementary constituents, which called Spin Angular Momentum Vacuum (SAMV). SAMV is filled with Primitive Spin Particles (PSP). The total square spin angular momentum of each PSP is negative, less than zero. Those PSP labeled by index \"\" of Casimir Operator, are called Vacuum Spin Particle (VSP), which could be contracted into so-called Vacuum Bubbles (VB). VB are identical bubbles, are \"sub-observable physical quantities\". VB are paired up into Vacuum Bubble Pair VBP. VSP ωj(or ω+-) results from Self-identical vacuum bubble interaction \"\" through the zero order Phase Transition PT. When the 1st, 2nd, 3rd,... order PT of VBP occur,  then VBP turn into Bosons and Fermions, excited out of sea level of SAMV ocean.
An Integrated Intrusion Detection System by Combining SVM with AdaBoost  [PDF]
Yu Ren
Journal of Software Engineering and Applications (JSEA) , 2014, DOI: 10.4236/jsea.2014.712090
Abstract: In the Internet, computers and network equipments are threatened by malicious intrusion, which seriously affects the security of the network. Intrusion behavior has the characteristics of fast upgrade, strong concealment and randomness, so that traditional methods of intrusion detection system (IDS) are difficult to prevent the attacks effectively. In this paper, an integrated network intrusion detection algorithm by combining support vector machine (SVM) with AdaBoost was presented. The SVM is used to construct base classifiers, and the AdaBoost is used for training these learning modules and generating the final intrusion detection model by iterating to update the weight of samples and detection model, until the number of iterations or the accuracy of detection model achieves target setting. The effectiveness of the proposed IDS is evaluated using DARPA99 datasets. Accuracy, a criterion, is used to evaluate the detection performance of the proposed IDS. Experimental results show that it achieves better performance when compared with two state-of-the-art IDS.
Novel Understanding of Electron States Architecture and Its Dimensionality in Semiconductors  [PDF]
Xiaomin Ren
Optics and Photonics Journal (OPJ) , 2013, DOI: 10.4236/opj.2013.32B075

Some important insights into the electron-states-architecture (ESA) and its dimensionality (from 3 to 0) in a semiconductor (or generally crystalline) material are obtained. The self-consistency of the set of density of states (DOS) expressions with different dimensionalities is remediated through the clarification and rearrangement of the wave-function boundary conditions for working out the eigenvalues in the wave vector space. The actually too roughly observed and theoretically unpredicted critical points for the dimensionality transitions referring to the integer ones are revealed upon an unusual assumption of the intrinsic energy-level dispersion (ELD). The ELD based quantitative physical model had been established on an immediate instinct at the very beginning and has been properly modified afterwards. The uncertainty regarding the relationship between the de Broglie wavelength of electrons and the dimensionality transitions, seeming somewhat mysterious before, is consequentially eliminated. The effect of the material dimensions on the ELD width is also predicted and has been included in the model. The continuous evolution of the ESA dimensionality is convincingly and comprehensively interpreted and thus the area of the fractional ESA dimensionalities is opened. Another new assumption of the spatial extension shrinkage (SES) closely related to the ELD has also been made and thus the understanding of the behavior of an electron or, in a general sense, a particle has become more comprehensive. This work would manifest itself a new basis for further development of nanoheterostructures (or low dimensional heterostructures including the quantum wells, quantum wires, quantum dots and especially the hetero-dimensional structures). Expected

Hurricane Camille 1969 and Storm-Triggered Landslides in the Appalachians and a Perspective in a Warmer Climate  [PDF]
Diandong Ren
International Journal of Geosciences (IJG) , 2016, DOI: 10.4236/ijg.2016.71006
Abstract: This study analyzes storm-triggered landslides in the US Appalachians, in the current geological setting. Concave valleys that favor the convergence of surface runoff are the primary locales for landslides. If the slopes are weathered to the same degree and have the same vegetation coverage, slope orientation (azimuthal) is not critical for slope stability. However, it is found that for the region south of the Black Mountains (North Carolina), north-facing slopes are more prone to slide, because, for the regions not limited by water availability (annual precipitation), the northern slopes usually are grass slopes. For the slopes of the Blue Ridge Mountains, south facing slopes are more prone to slide. Gravity measurements over the past decade reveal that geological conditions, the chute system and underground cracks over the region are stable. Future changes in storm-triggered landslide frequency are primarily controlled by changes in extreme precipitation. Thus, a series of ensemble climate model experiments is carried out to investigate possible changes in future extreme precipitation events, using a weather model forced by atmospheric perturbations from ensemble climate models. Over 50 locations are identified as prone to future landslides. Many of these locales are natural habitats to the Appalachian salamanders. In a future warmer climate, more severe extreme precipitation events are projected because of increased atmospheric water vapor and more frequent passages of tropical cyclone remnants. There is also a likely shift of tropical cyclone tracks and associated extreme precipitations, and the cluster center of Appalachians’s scarps is expected to move westward, with ecological consequences for the endemic salamanders.
A Study of How High-Speed Railway Affects County Industry Development  [PDF]
Jintao Ren
Open Journal of Social Sciences (JSS) , 2018, DOI: 10.4236/jss.2018.65006
Abstract: Since the first Chinese high-speed railway was built in 2008, the high-speed railway industry has developed rapidly recently. Based on “China railway yearbook”, The map of China’s railway network, “China statistical yearbook” in county level, and the “China Regional Economic Statistics Year book”, we collect and sort out the various economic and society indexes of the county in China, and we set up the national city at the county level panel data, using Two-way Fixed Effect model to estimate the policy effect on the county which built the high-speed railway station. Based on the research of panel date, we can get several conclusions. Firstly, building a high-speed railway will promote the economic growth of the cities at the county level. Secondly, the opening of high-speed railway has positive and significant policy effect on the three main industries of county-level cities, especially the development of tertiary industry. Finally, the construction of high-speed rail has a strong policy impact on the county-level cities in the four regions of the eastern, western, central and northeastern regions. Among them, the construction of a high-speed railway site will promote the economic growth of the county-level high-speed rail station cities in the central region and the policy effect on the development of the tertiary industry is the strongest.
The Far-Reaching Impact of the EU Supervision System on Global Governance  [PDF]
Ying Ren
Open Journal of Social Sciences (JSS) , 2018, DOI: 10.4236/jss.2018.67007
Abstract: Europe is the source of modern supervisory governance, which also has great impact on global governance in the aftermath of crises. The far-reaching impact of the EU supervision system is mainly reflected as follows. Europe is the founder of modern supervisory governance both historically and legally. And EU supervision system consolidates the rule of law principle of supervision and governance in the context of the civil law system and special legislation, and promotes the reform of supervisory governance path. Meanwhile, considering the present complex and changeable international situation, it is high time that we should enhance the impact of supervisory governance in the strategic background of EU-Asia Pacific Partnership.
The Theoretical System of Human Rights with Chinese Characteristics  [PDF]
Ying Ren
Chinese Studies (ChnStd) , 2018, DOI: 10.4236/chnstd.2018.73018
Abstract: Human rights discourse and its theoretical system play an irreplaceable role in the history of human civilization. The purpose of this paper is to summarize and discuss the formation of human rights theory system, which consists of three parts. These parts are the background, cultural resources and the establishment of human rights theory system with Chinese characteristics. In the course of development, China has creatively established the idea of striving for national independence and people’s happiness, the theory of socialist human rights and legal system, the thought of human rights protection and party building, the notion of human rights and scientific development and the concept of human rights theory system with Chinese characteristics in the new era. These ideas are important milestones in the development of Chinese human rights theory system.
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