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What Connects Dark Matter and Black Holes? Scientific Explanation 是什么把暗物质和黑洞联系在一起?科学的解释
Pub Date : 2021-08-26 DOI: 10.9734/bpi/rtcps/v1/3910f
Russell Bagdoo
Dark matter is a major component of the universe, about six times more abundant than ordinary visible matter. We measure the effects of its mass, but it escapes the telescopes. It has the particularity of emitting no radiation and interacting only by the action of gravity. The main purpose of this article is to try to answer what dark matter is: we conjecture that it is composed of magnetically charged neutrinos, true magnetic monopoles. But that requires a huge conceptual leap: Maxwell's laws must be inverted and the electric charge becomes a magnetic charge. Asymmetric "reversed" Maxwell's laws would provide the "dark" magnetic charge that would replace the electric charge. The very form of the Dirac equation, which imposed on ordinary matter that the particle carries an electric charge and obeys the principal properties of the electron, would impose in the dark matter that the "dark" particle obeys the main properties of a neutrino associated with a magnetic charge. Dark matter is intimately related to black holes. The darkness of dark matter and black holes is caused by the reversal of Maxwell's laws. The second aim of the article is to show that dark matter is derived from black holes, mainly from active supermassive black holes. This requires a second conceptual leap: the horizon of the black hole undergoes a high temperature and an intense pressure of magnetic fields which cause a blackout and a phase transition (or broken symmetry) when the matter crosses the horizon. The result is a reversal of Maxwell's laws: A magnetic charge is substituted for the electric charge, and the electric current becomes a tributary of the magnetic current. A third important conceptual leap follows: sterile magnetic neutrinos created inside the black hole would cross the horizon to the outside to constitute dark matter.
暗物质是宇宙的主要组成部分,大约是普通可见物质的六倍。我们测量了它的质量效应,但望远镜无法观测到它。它具有不发射辐射,只受重力作用而相互作用的特点。这篇文章的主要目的是试图回答暗物质是什么:我们推测它是由带磁性的中微子,真正的磁单极子组成的。但这需要一个巨大的概念飞跃:麦克斯韦定律必须颠倒,电荷变成磁荷。不对称的“反向”麦克斯韦定律将提供“暗”磁荷来取代电荷。在普通物质上,狄拉克方程规定粒子携带电荷并遵循电子的主要特性,而在暗物质中,狄拉克方程也规定“暗”粒子遵循与磁荷相关的中微子的主要特性。暗物质与黑洞密切相关。暗物质和黑洞的黑暗是由麦克斯韦定律的反转引起的。这篇文章的第二个目的是证明暗物质来自黑洞,主要来自活跃的超大质量黑洞。这需要第二次概念上的飞跃:当物质穿过视界时,黑洞的视界会经历高温和强磁场的压力,从而导致停电和相变(或对称性破坏)。结果是麦克斯韦定律的反转:磁荷取代了电荷,电流变成了磁流的支路。第三个重要的概念飞跃随之而来:在黑洞内部产生的无菌磁中微子将穿过视界到达外部,构成暗物质。
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引用次数: 0
Study of Low-Noise Wide-Band Tuned Sziklai Pair Small-Signal Amplifier 低噪声宽带调谐Sziklai对小信号放大器的研究
Pub Date : 2021-08-26 DOI: 10.9734/bpi/rtcps/v1/4064f
S. Shukla, G. Srivastava, Syed Shamroz Arshad
The objective of the paper is to propose and study the modified version of NPN-driven Sziklai pair small-signal amplifier with user-defined PSpice model of unmatched BJTs. With an additional biasing resistance, the proposed amplifier generates higher amplifier current gain (12904), higher amplifier voltage gain (304.343), wider bandwidth (2.7107 MHz) and higher power gain (65.940 dB-Watt) than earlier announced commercial BJTs based NPN Sziklai pair Small-signal amplifier. It is also found capable of producing distortion-less and fair output for a 1(mu)V-1.6mV range of AC input signal at 1KHz frequency. Low input and output noises along with excellent thermal stability over the operational temperature range -30oC (le)T(le)+50oC are the paramount features of this amplifier. Proposed amplifier is also examined with the matched pair of BJTs. An investigation of the physical analysis of frequency responses and related parameters such as the effect of additional biasing resistance RA, effect of variation of current gain factor (beta), temperature dependency, noise sensitivity, phase variation, range of the different biasing resistances and capacitors and small-signal AC analysis is also being performed in detail. With the suggested modifications, the proposed amplifier may be used in analog front-end amplifiers for monitoring the bio-potential signal of the human body. Tuning performance also makes it a suitable candidate to be used in radio and TV receiver stages.
本文的目的是提出并研究基于非匹配bjt的自定义PSpice模型的npn驱动Sziklai对小信号放大器的改进版本。通过额外的偏置电阻,与之前公布的基于BJTs的NPN Sziklai对小信号放大器相比,所提出的放大器产生更高的放大器电流增益(12904),更高的放大器电压增益(304.343),更宽的带宽(2.7107 MHz)和更高的功率增益(65.940 dB-Watt)。它还能够在1KHz频率下为1 (mu) V-1.6mV范围的交流输入信号产生无失真和公平输出。低输入和输出噪声以及出色的热稳定性在工作温度范围-30℃(le) T (le) +50℃是该放大器的首要特点。用匹配的bjt对所提出的放大器进行了检验。对频率响应和相关参数的物理分析进行了详细的研究,如附加偏置电阻RA的影响、电流增益因子(beta)变化的影响、温度依赖性、噪声灵敏度、相位变化、不同偏置电阻和电容的范围以及小信号交流分析。经过改进,该放大器可用于模拟前端放大器,用于监测人体的生物电位信号。调谐性能也使它成为一个合适的候选者,用于广播和电视接收机阶段。
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引用次数: 4
Study on Classical Electrodynamics Spin 经典电动力学自旋的研究
Pub Date : 2021-08-26 DOI: 10.9734/bpi/rtcps/v1/4052f
R. Khrapko
There are two mutually exclusive concepts of the electrodynamics spin. According to the widespread concept, the spin density is proportional to the gradient of the electromagnetic energy density. Therefore, an unlimited plane wave of circular polarization does not contain spin, and a real wave, limited in space, carries all spin at its boundary, separately from energy. In contrast, according to the original concept, the spin density is proportional to the energy density, and the spin of plane waves is not related to the existence of the boundaries. Within the framework of this concept, we calculate the spin fluxes of plane waves in various situations and the previously unnoticed spin flux in the dipole radiation. The reason for the transition from this initial concept to the concept of a spin proportional to energy density gradient is discussed.
电动力学自旋有两个相互排斥的概念。根据普遍的概念,自旋密度与电磁能量密度的梯度成正比。因此,无限的圆偏振平面波不包含自旋,而空间有限的实波在其边界处携带所有自旋,与能量分离。相反,根据原来的概念,自旋密度与能量密度成正比,平面波的自旋与边界的存在无关。在这个概念的框架内,我们计算了各种情况下平面波的自旋通量和偶极子辐射中以前未注意到的自旋通量。讨论了从这个初始概念转变为与能量密度梯度成比例的自旋概念的原因。
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引用次数: 0
Study on Dependence of Diffraction Dissociation Phenomenon in Neutrino Interactions with Nuclei 中微子与原子核相互作用中衍射离解现象的依赖性研究
Pub Date : 2021-08-26 DOI: 10.9734/bpi/rtcps/v1/9700d
O. Egorov
Only after the introduction of the electron proton accelerator HERA was able to conduct experiments on the diffraction dissociation phenomenon in photo and electro production. We present results on A-dependence of diffraction dissociation (DD) phenomenon in interactions of muonic neutrino with nuclei at various values of momentum transfer. Calculations were done within the two-gluon exchange model by Nikolaev-Zakharov-Zoller (NZZ). Comparison with experimental data obtained in interactions of muonic neutrino with photo emulsion nuclei is carried out. All data are presented as ratio of the DD cross section to the deep inelastic cross section.
在引入电子质子加速器之后,HERA才能够对光电生产中的衍射离解现象进行实验。我们给出了在不同动量传递值下,介子中微子与原子核相互作用中衍射离解(DD)现象的a依赖性的结果。用Nikolaev-Zakharov-Zoller (NZZ)的双胶子交换模型进行了计算。对介子中微子与光乳剂核相互作用的实验数据进行了比较。所有数据均以DD截面与深部非弹性截面之比表示。
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引用次数: 0
A Potential Barrier Halting Spherically Symmetric Relativistic Gravitational Collapse 阻止球对称相对论引力坍缩的势垒
Pub Date : 2021-08-26 DOI: 10.9734/bpi/rtcps/v1/4203f
James C. Austin
For asymptotic observers, geodesic paths of radially inbound photons in a Schwarzschild space-time approach the critical radius of a collapsed star asymptotically. When considering processes of accretion or quantum evaporation however, inbound null geodesics, in a corresponding Vaidya space-time, pass through a momentary inflection point where time dilation diverges and subsequently reach the critical radius within a finite coordinate time. By considering a diagonal form of the Vaidya metric that reduces to the Schwarzschild metric in the zero accretion/evaporation limit, photons approaching on radial paths pass through the inflection point and undergo infrared divergence at the critical radius. Particles on radial timelike geodesics are shown to meet a potential barrier beyond the inflection point, which diverges at the critical radius.
对于渐近观测者来说,在史瓦西时空中径向入射光子的测地线路径渐近地接近坍缩恒星的临界半径。然而,当考虑吸积或量子蒸发过程时,在相应的Vaidya时空中,入站零测地线经过时间膨胀发散的瞬间拐点,随后在有限的坐标时间内达到临界半径。通过考虑Vaidya度规的对角线形式,在零吸积/蒸发极限下简化为史瓦西度规,在径向路径上接近的光子通过拐点并在临界半径处经历红外发散。在径向类时测地线上的粒子在拐点以外遇到势垒,势垒在临界半径处发散。
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引用次数: 1
Analysis and Experimental Evaluation of a Resonant AC/DC Converter for HF-AC Power Distribution Systems: Recent Advancement 高频-交流配电系统中谐振AC/DC变换器的分析与实验评价:最新进展
Pub Date : 2021-08-26 DOI: 10.9734/bpi/rtcps/v1/4181f
M. Cendoya
The high frequency (HF) alternating current (AC) power distribution systems have significant advantages over their DC counterparts. This paper presents the analysis and experimental evaluation of an AC/DC resonant converter, suitable to be used at the load side of HF sinusoidal AC power distribution systems. Foremost, a theoretical analysis of the converter operation in steady-state and continuous conduction mode is performed. The analysis is focused on obtaining the conversion ratio, the distortion of the input current and the converter efficiency. In order to validate the theoretical analysis and to investigate the performance, a converter prototype was included in a laboratory HF sinusoidal AC distribution system. The experimental results present a good correlation with predicted values obtained by means of calculations done with the mathematical expressions derived in the theoretical analysis. They also confirm the converter fine performance for the suggested application.
与直流配电系统相比,高频交流配电系统具有显著的优势。本文对一种适用于高频正弦交流配电系统负荷侧的交/直流谐振变换器进行了分析和实验评价。首先,对变换器在稳态和连续导通模式下的工作进行了理论分析。重点分析了变换器的转换比、输入电流畸变和变换器效率。为了验证理论分析并研究其性能,在实验室高频正弦交流配电系统中安装了变换器样机。实验结果与理论分析中推导的数学表达式计算得到的预测值有很好的相关性。他们还证实了转换器的优良性能,为建议的应用。
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引用次数: 0
Collimation Effect on THz Transmission Resonances in Metalized and Defected Photonic Structures 金属化和缺陷光子结构中太赫兹透射共振的准直效应
Pub Date : 2021-08-26 DOI: 10.9734/bpi/rtcps/v1/4111f
E. Glushko
A photonic crystal resonator optically contacted with a metal film generates in the THz frequency range a system of sharp spikes of electromagnetic quenching matching the reflection spectra of a bore resonator. It was shown that the calculated angle-frequency map of reflection for a metalized polypropilene/air structure contains narrow lines of extraordinary transmission through the metal film. In this work, we found that sharp peaks of electromagnetic transmission can also be generated at certain conditions by the defect containing resonators. The effect depends essentially on the defect position and number of periods. A remarkable property of the considered resonators when a thin inclined line of transmission takes place against the backdrop of perfect reflection can serve as a ground effect in compact and reliable direction control devices and THz radiation collimating devices. Energy concentration and collimation effect in a metalized resonator structure fitted with a stochastic EMW reservoir was evaluated. Enhancement of THz radiation filtering based on peaks of resonant transmission was discussed.
与金属薄膜光学接触的光子晶体谐振器在太赫兹频率范围内产生与孔谐振器反射光谱相匹配的电磁猝灭尖峰系统。结果表明,计算得到的金属化聚丙烯/空气结构的反射角频图包含通过金属薄膜的特殊透射的窄线。在这项工作中,我们发现在某些条件下,含缺陷谐振器也可以产生电磁传输的尖峰。效果主要取决于缺陷的位置和周期数。所考虑的谐振器在完全反射背景下发生细倾斜透射线时具有显著的特性,可以作为紧凑可靠的方向控制装置和太赫兹辐射准直装置的地效应。对随机EMW储层金属化谐振腔结构的能量集中和准直效应进行了评价。讨论了利用谐振透射峰增强太赫兹辐射滤波的方法。
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引用次数: 1
Study on Aerodynamic and Structural Analysis of Bio-mimetic Corrugated Wing 仿生波纹翼气动与结构分析研究
Pub Date : 2021-08-26 DOI: 10.9734/bpi/rtcps/v1/12539d
Md. Akhtar Khan, C. Padhy
The aerodynamic and static structural analysis of a newly developed bio-mimetic corrugated aerofoil inspired by dragonfly forewing is included in this work. The basal wing part of the dragonfly corrugated aerofoil structure used in this study was placed around the radius of the forewing. These corrugations define the stressed skin structure, which is made up of grider-like veins and a thin cuticle membrane that provides a sophisticated mechanical advantage for longitudinal bending resistance while allowing for wing camber and torsion. Dragonflies are recognised for their amazing flight abilities. They are designed to carry both aerodynamic and inertial loads. At a Reynolds number of 15000, a computational analysis of a newly designed dragonfly corrugated aerofoil is performed, with flow assumed to be laminar, steady, incompressible, and two dimensional. The project includes static structural analysis and aerodynamic flow analysis of a 2-D dragonfly corrugated aerofoil utilising Ansys Fluent and Ansys Mechanical APDL. It has been discovered that the design criteria employed, as well as simulations performed on a corrugated aerofoil, produce significantly better results than earlier studies. The structural analysis also demonstrates that it can withstand maximum pressure loads and provides high rigidity to the wing span. This discovery adds to our knowledge of insect-inspired corrugated wing structure and facilitates the application for improved design of artificial wings for MAVs and UAVs.
本文以蜻蜓前翼为灵感,对一种新型仿生波纹翼进行了气动和静力结构分析。蜻蜓波纹翼结构的基翼部分被放置在前翼半径附近。这些波纹定义了应力皮肤结构,它由网格状静脉和薄角质层组成,在允许机翼弯曲和扭转的同时,提供了纵向弯曲抵抗的复杂机械优势。蜻蜓以其惊人的飞行能力而闻名。它们被设计为同时承受空气动力和惯性载荷。在雷诺数为15000的情况下,对新设计的蜻蜓型波纹翼进行了计算分析,假设流动是层流的、稳定的、不可压缩的、二维的。该项目包括利用Ansys Fluent和Ansys Mechanical APDL对二维蜻蜓波纹翼进行静力结构分析和气动流动分析。已经发现,所采用的设计标准,以及在波纹翼上进行的模拟,产生比早期研究明显更好的结果。结构分析也表明,它可以承受最大的压力载荷,并提供高刚度的翼展。这一发现增加了我们对昆虫启发波纹翼结构的认识,并促进了小飞机和无人机人工机翼改进设计的应用。
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引用次数: 0
Message from the SUN on 28th August 1859 1859年8月28日来自太阳的消息
Pub Date : 2021-08-26 DOI: 10.9734/bpi/rtcps/v1/12511d
Avtar Singh Gill
The great 1859 spectral auroral event affecting the Earth which also showed the link between the magnetic effect and the electrical effect is explained as the ‘Message from the SUN 28th August 1859'. The Northern and Southern Lights are caused by the solar IMF. Gill’s Electronic Theory of Magnetism 1964 shows how the solar IMF on approaching the magnetosphere of the Earth splits into its negative and positive electric energy components which head for the opposite magnetic poles of the Earth to cause the equally bright Aurora Borealis and Aurora Australis. Why these Northern and Southern lights do not reach all the way to the magnetic poles of the Earth and why they are brighter on the night side will be explained with illustrations. Kristian Birkeland’s 1900-1916 ‘terrella’ experiments are further explained.  The solar source of the essential electrical seeding of the magnetic poles of the Earth for the functioning of the geomagnetic dynamo of the Earth to create its magnetosphere is shown. Some applications to harness this solar electrical energy reaching the Earth are presented and dot product equations are presented to support these applications without any need of Henrik Lorentz’s 1893 cross products. Gill’s electronic theory of magnetism 1964 explains all the above and should replace Maxwell’s pre-existing dipole theory of magnetism 1873.
1859年影响地球的巨大光谱极光事件也显示了磁效应和电效应之间的联系,这被解释为“来自1859年8月28日太阳的信息”。北极光和南极光是由太阳的国际货币基金组织引起的。吉尔1964年的《磁学电子理论》展示了太阳的国际货币基金组织在接近地球磁层时是如何分裂成正负的电能成分的,这两种能量成分分别朝向地球相反的磁极,从而产生了同样明亮的北极光和南极光。为什么这些北极光和南极光没有一直到达地球的磁极,为什么它们在夜晚的一面更亮,我们将用插图来解释。克里斯蒂安·伯克兰1900年至1916年的“terrella”实验进一步解释。地球磁极的基本电种子的太阳源,地球的地磁发电机的功能,以创造其磁层显示。介绍了利用太阳能到达地球的一些应用,并提出了点积方程来支持这些应用,而不需要亨利克·洛伦兹的1893叉积。吉尔1964年提出的电子磁性理论解释了上述所有问题,并应取代麦克斯韦在1873年提出的磁偶极子理论。
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引用次数: 0
A Look at Schmutzer's New Projective Unified Field Theory 论Schmutzer的新投影统一场论
Pub Date : 2021-08-26 DOI: 10.9734/bpi/rtcps/v1/3583f
R. Collier
This short letter refers to Schmutzer’s 5-dimensional Projective Unified Field Theory as a new general-relativistic covariant unification of gravitation, electromagnetism and scalarism. The scalarism appearing in the theory is a new phenomenon of nature, which can be interpreted as dark matter. A number of applications to the orbits of spaceships, planets and stars in galaxies as well as to the cosmos as a whole generate new effects that go beyond the known statements of the Einstein-Maxwell theory.
这封简短的信将Schmutzer的5维射影统一场论称为引力、电磁学和标量论的新广义相对论协变统一。该理论中出现的标量现象是一种新的自然现象,可以解释为暗物质。在宇宙飞船、行星和星系中的恒星以及整个宇宙的轨道上的许多应用产生了超越爱因斯坦-麦克斯韦理论已知陈述的新效应。
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引用次数: 0
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Research Trends and Challenges in Physical Science Vol. 1
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