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An explanation of the titius-bode law resulted by a Kant-Laplace type model of the solar system’s forming 由太阳系形成的康德-拉普拉斯模型得出的对提提斯-波德定律的解释
Physics & Astronomy International Journal Pub Date : 2019-08-16 DOI: 10.15406/paij.2019.03.00174
Marius Arghirescu
{"title":"An explanation of the titius-bode law resulted by a Kant-Laplace type model of the solar system’s forming","authors":"Marius Arghirescu","doi":"10.15406/paij.2019.03.00174","DOIUrl":"https://doi.org/10.15406/paij.2019.03.00174","url":null,"abstract":"In the paper is shows that the Titius-Bode relation of the distances Sun-planet may be explained by a Kant-Laplace type model of planetary system forming, considering a linear decreasing of the lenticular protoplanetary nebula’s density and the constancy of its rotation speed. The resulted conclusions is that the protoplanetary material rings were formed by the successive halving of the nebular mass MN and thereafter- of the remained part and may be generalized for the star clusters, for the galaxies forming but also for the expansion of the galaxies super-clusters and of the Universe.","PeriodicalId":377724,"journal":{"name":"Physics & Astronomy International Journal","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122021179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the singular series in the Jiang prime k-tuple theorem 关于Jiang ' k-元组定理中的奇异级数
Physics & Astronomy International Journal Pub Date : 2018-11-16 DOI: 10.15406/paij.2018.02.00134
Chun Xuan Jiang
{"title":"On the singular series in the Jiang prime k-tuple theorem","authors":"Chun Xuan Jiang","doi":"10.15406/paij.2018.02.00134","DOIUrl":"https://doi.org/10.15406/paij.2018.02.00134","url":null,"abstract":"Using Jiang function we prove Jiang prime k-tuple theorem. We find true singular series. Using the examples we prove the Hardy-Littlewood prime k-tuple conjecture with wrong singular series. Jiang prime k-tuple theorem will replace the Hardy-Littlewood prime k-tuple conjecture.","PeriodicalId":377724,"journal":{"name":"Physics & Astronomy International Journal","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121608534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modification of the terrestrial albedo following the absorption of the solar radiation by the dark artificial surfaces and its influence on the green house effect 暗人造表面吸收太阳辐射后陆地反照率的变化及其对温室效应的影响
Physics & Astronomy International Journal Pub Date : 2018-11-15 DOI: 10.15406/paij.2018.02.00133
Romdhane Ben Slama
{"title":"Modification of the terrestrial albedo following the absorption of the solar radiation by the dark artificial surfaces and its influence on the green house effect","authors":"Romdhane Ben Slama","doi":"10.15406/paij.2018.02.00133","DOIUrl":"https://doi.org/10.15406/paij.2018.02.00133","url":null,"abstract":"In this article, it is implicated another factor other than that greenhouse gases in global warming. Indeed, CO2 and its equivalents retain only infrared radiation of long wavelengths. These are issued naturally by the earth at all times, but recently under the pretext of prestige or fashion, in hot countries is added the paintings of buildings in dark color, black in this case. These colors affect the albedo coefficient by the absorption of solar radiation and the emission of far infrared radiation that cannot cross the greenhouse gases, so partly reflected towards the earth causing global warming. Global action on reducing greenhouse gas emissions should therefore be complemented by a reduction in the dark color areas created by man.","PeriodicalId":377724,"journal":{"name":"Physics & Astronomy International Journal","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115989649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Application of transformation optics for the purpose of cloaking 变换光学在隐身中的应用
Physics & Astronomy International Journal Pub Date : 2018-02-20 DOI: 10.15406/paij.2018.02.00056
Sidhwa Hh
{"title":"Application of transformation optics for the purpose of cloaking","authors":"Sidhwa Hh","doi":"10.15406/paij.2018.02.00056","DOIUrl":"https://doi.org/10.15406/paij.2018.02.00056","url":null,"abstract":"The advent of transformation optics has lead to the initiation of designing devices and applications associated to electromagnetic wave propagation in anisotropic media. Here, a method is suggested using a coordinate transformation with spherical coordinates for the purpose of designing a three dimensional cloak for a body having an arbitrary convex geometry. For the purpose of verification of the algorithm, a ray tracing process is carried out for an ellipsoid having axial symmetry.","PeriodicalId":377724,"journal":{"name":"Physics & Astronomy International Journal","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126880415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Comparison of EDFA and Raman amplifiers effects on RZ and NRZ encoding techniques in DWDM optical network with bit rate of 80 Gb/s 在比特率为80gb /s的DWDM光网络中，EDFA和拉曼放大器对RZ和NRZ编码技术的影响比较
Physics & Astronomy International Journal Pub Date : 2018-02-20 DOI: 10.15406/paij.2018.02.00057
Seraji Fe, Kiaee Ms
{"title":"Comparison of EDFA and Raman amplifiers effects on RZ and NRZ encoding techniques in DWDM optical network with bit rate of 80 Gb/s","authors":"Seraji Fe, Kiaee Ms","doi":"10.15406/paij.2018.02.00057","DOIUrl":"https://doi.org/10.15406/paij.2018.02.00057","url":null,"abstract":"Transmission of data through the communication networks is possible by using different methods of modulation and encoding. The aim of using these techniques is to efficiently use bandwidth and transmission of digital data by using carrier waves. There is no exception for optical communication systems in which we transmit optical pulses via the light waves. Yet, propagation of the light wave through the optical fibers would incur power loss due to different attenuation mechanisms. Such a situation will cause errors in detection of signals at the receiver end. So, to circumvent this problem, use of optical amplifiers is required. Erbium-doped fiber amplifier (EDFA) and Raman amplifier (RA) are the most popular ones, which are used widely in the optical communications systems. In this study, by simulating a DWDM optical link with a bit rate of 80 Gb/s and a link span of 80 km, the effects of EDFA and RA on NRZ and RZ encoding techniques for modulation are investigated by using Optisystem software solver and the received optical signals are analyzed by the corresponding eye-diagrams and Q-factors.","PeriodicalId":377724,"journal":{"name":"Physics & Astronomy International Journal","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132614412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Early publications about nonzero cosmological constant 关于非零宇宙常数的早期出版物
Physics & Astronomy International Journal Pub Date : 2018-02-19 DOI: 10.15406/paij.2018.02.00055
Horvath I
{"title":"Early publications about nonzero cosmological constant","authors":"Horvath I","doi":"10.15406/paij.2018.02.00055","DOIUrl":"https://doi.org/10.15406/paij.2018.02.00055","url":null,"abstract":"In 2011 the Nobel Prize in Physics was awarded for the 1998 discovery of the nonzero cosmological constant. This discovery is very important and surely worth to receive the Nobel Prize. However, years earlier several papers had been published about a very similar discovery from observational data.","PeriodicalId":377724,"journal":{"name":"Physics & Astronomy International Journal","volume":"28 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115859577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Computation of three-dimensional periodic orbits in the sun-earth system 日地系统三维周期轨道的计算
Physics & Astronomy International Journal Pub Date : 2018-02-09 DOI: 10.15406/paij.2018.02.00052
Tiwary Rk, Srivastava Vk, Kushvah Bs
{"title":"Computation of three-dimensional periodic orbits in the sun-earth system","authors":"Tiwary Rk, Srivastava Vk, Kushvah Bs","doi":"10.15406/paij.2018.02.00052","DOIUrl":"https://doi.org/10.15406/paij.2018.02.00052","url":null,"abstract":"In this paper, a third-order analytic approximation is described for computing the three-dimensional periodic halo orbits near the collinear L1 and L2 Lagrangian points for the photo gravitational circular restricted three-body problem in the Sun-Earth system. The constructed third-order approximation is chosen as a starting initial guess for the numerical computation using the differential correction method. The effect of the solar radiation pressure on the location of two collinear Lagrangian points and on the shape of the halo orbits is discussed. It is found that the time period of the halo orbit increases whereas the Jacobi constant decreases around both the collinear points taking into account the solar radiation pressure of the Sun for the fixed out-of-plane amplitude.","PeriodicalId":377724,"journal":{"name":"Physics & Astronomy International Journal","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124276629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Statistical model of nuclide shell structure 核素壳层结构统计模型
Physics & Astronomy International Journal Pub Date : 2018-02-06 DOI: 10.15406/paij.2018.02.00050
Chen Dayou
{"title":"Statistical model of nuclide shell structure","authors":"Chen Dayou","doi":"10.15406/paij.2018.02.00050","DOIUrl":"https://doi.org/10.15406/paij.2018.02.00050","url":null,"abstract":"This thesis, after a systematic and in-depth analysis of known nuclides, pro-poses a new model of nuclides’ shell structure and offers a table of the shell structures of 935 nuclides. With this theoretic approach, the thesis studies the shell combination with a bias towards the statistical analysis of nuclide structures. This thesis distinguishes between the basic models of nuclides and gives 7criteria for nu-clide binding, the maximal nucleonic number of each shell (ΔAi ), combination of proton and neutron (p/n) and graphs of the nuclide growth. Based on magnetic moment, it also conducts a quantitative analysis of p/n on the shell. The nuclide structure has the characteristic of a shell and on every shell the combination of proton and neutron features clear regularity. Among the 263 elements from 11 H to 263106 Sg the serial number of the most outside shell in structure are 7, and nuclides 262105 Ha and 263106 Sg are respectively even A and odd A 7 shells. It is not a coincidence but a reflection of the nuclide shell structure. The thesis uses the result of a statistical analysis to confirm the existence of “the magic Number” and reveals the fact that the magic number” is a reflection of p/n on nuclide shell, particularly on the outer shells. The statistical analysis reveals that the nuclide stability and its way of decay are dependent on the nucleonic combination on the most outside shell and the matching between full-filled and semi-full filled p/n, thus unveiling the general law governing the stability and decay of nuclides.","PeriodicalId":377724,"journal":{"name":"Physics & Astronomy International Journal","volume":"08 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127399589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fundamentals of optical coherence tomography: a critical review 光学相干断层成像的基本原理:一个重要的评论
Physics & Astronomy International Journal Pub Date : 2018-02-06 DOI: 10.15406/paij.2018.02.00049
Ullah H, Andleeb F, Hussain F
{"title":"Fundamentals of optical coherence tomography: a critical review","authors":"Ullah H, Andleeb F, Hussain F","doi":"10.15406/paij.2018.02.00049","DOIUrl":"https://doi.org/10.15406/paij.2018.02.00049","url":null,"abstract":"The main objective of this work is to go through fundamentals, mechanism and types of the state of the art emerging imaging modality i.e. optical coherence tomography (OCT) for non-invasive 3D imaging of bio tissues. This work consists of literature studied critically for OCT’s contribution in axial scanning of bio tissues with it different types to the best of our knowledge. Doppler optical coherence tomography (D-OCT) and speckle variance optical coherence tomography (SV-OCT) for blood flow assessment and blood microvasculatures on micron-scale resolution with dorsal skin-fold window chamber model (WCM) of mouse, Fourier domain common path (FD-CP-OCT) for applications in the setting of delicate microsurgical procedures such as intraocular retinal surgery have been explored. We conclude that OCT is the promised imaging modality in 3D regime for non-invasive applications.","PeriodicalId":377724,"journal":{"name":"Physics & Astronomy International Journal","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127561502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A theoretical checking for resistive instabilities into the plasma: one proposed criterion for identification of the plasma waves 等离子体中电阻不稳定性的理论检验:一种提出的等离子体波识别准则
Physics & Astronomy International Journal Pub Date : 2018-02-06 DOI: 10.15406/paij.2018.02.00051
Xaplanteris Cl, Xaplanteris Sc
{"title":"A theoretical checking for resistive instabilities into the plasma: one proposed criterion for identification of the plasma waves","authors":"Xaplanteris Cl, Xaplanteris Sc","doi":"10.15406/paij.2018.02.00051","DOIUrl":"https://doi.org/10.15406/paij.2018.02.00051","url":null,"abstract":"As the resistive instabilities with their serious difficulty at the thermonuclear fusion programs have concentrated much interest of the researchers, the present study has the ambition to provide an applicable and useful criterion for examining and identifying if a observed plasma wave is resistive or not. A dispersion relation is obtained, by using the two fluids equation and considering that a resistive force exists, and then the growth rate can be solved. Subsequently, the resistance factor is calculated using the experimental values and data obtained. Finally, a comparison of the calculated resistance factor with the ones published in bibliography will be performed, which gives the expected answer about the type of the examined wave.","PeriodicalId":377724,"journal":{"name":"Physics & Astronomy International Journal","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117354745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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