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Two-dimensional Particle-in-Cell modeling of blow-off impulse by X-ray irradiation 作者： Ruibo Li 1 Jin-Long Jiao 2 Hui Luo 1 Dezhi Zhang 3 Dengwang Wang 3 Kai Wang 2 作者单位： 1. Graduate School of China Academy of Engineering Physics 2. Zhejiang University, Zhejiang Institute of Modern Physics 3. Northwest Institute of Nuclear Technology 通讯作者： Ruibo Li Email:[email protected] Jin-Long Jiao Email: [email protected] Hui Luo Email:[email protected] Kai Wang Email:[email protected] 提交时间： 2024-04-05 12:56:28 摘要: Space objects, such as spacecraft or missiles, might be exposed to intense X-rays in outer space, leading to severe damage. How to reinforce these objects to reduce damage from X-ray irradiation is a significant concern. Blow-off impulse (BOI) is a crucial physical quantity for investigating the material damage induced by X-ray irradiation. However, the accurate calculation of the BOI is a challenge, particularly for the large deformation of materials with complex configurations. In this paper, we develop a novel two-dimensional Particle-in-Cell (PIC) code, Xablation2D, to calculate the BOIs under far-field X-ray irradiation. This significantly reduces the dependence on grid shape for numerical simulation. The reliability of this code is verified by the simulation results from the open-source codes, and the calculated BOIs are consistent with experimental and analytical results. X-ray irradiation Energy deposition Blow-off impulse Particle-in-Cell 来自： Ruibo Li 期刊： Nuclear Science and Techniques 分类： 核科学技术 >> 核科学与技术 核科学技术 >> 辐射物理与技术 投稿状态： 已被期刊接收 引用： ChinaXiv:202404.00107 (或此版本 ChinaXiv:202404.00107V1 ) DOI:10.12074/202404.00107V1 CSTR:32003.36.ChinaXiv.202404.00107.V1 推荐引用方式： Ruibo Li,Jin-Long Jiao,Hui Luo,Dezhi Zhang,Dengwang Wang,Kai Wang.(2024).Two-dimensional Particle-in-Cell modeling of blow-off impulse by X-ray irradiation.Nuclear Science and Techniques.[ChinaXiv:202404.00107] 版本历史 [V1] 2024-04-05 12:56:28 ChinaXiv:202404.00107V1 下载全文

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Mr Bielek describes and explains Project Rainbow which was the United States Navy's effort to make ships invisible to radar reflection.  It started in 1931 with Jon Van Neumann and Nikola Tesla with Princeton University Project Thinktank including mathematician Albert Einstein as an advisor with other mathematician's cutting-edge work including Hilbert and Levinson and Neumann.  It achieved radar invisibility and human eye invisibility on a small ship scale.  At.first, at relatively lower powers of electric and magnetic field powers, and an unmanned ship with remote control, the experimenting was auccessful and promising.  Taken to extreme high power onboard the massive ship The USS Eldridge of 30,000 tons with a test crew of about 33, the experiment proved murderous, disasterous, successful, uncontrollable, and unexpected, confusing and mysterious.  Depending upon the frame of reference, the results of the experiment were observed differently.  The varied Frame Of References are listed as: 1) From other nearby observers including nearby short aircraft carrier, ships and on-shore in the Philadelphia location.  2)Onboard the Eldridge On Deck.  3)Onboard the Eldridge Below Deck.  4)ALL-IN: A)Below-Deck, B)On-Deck, C)In Hyperspace, D)In The Future(s)28th century, 22nd century E)From Montauk on August 12th, 1983.  All these frame of references by time-travelling Edward Cameron.  Who later, by force and decision by unknown Timeline Lords in control of The Montauk Project 1983, a decade after the Philadelphia, by the technologies developed from the Philadelphia Experiment and subsequent furthering, was brainwashed in 1953 and age-regressed to a baby and to restart his life back in 1927 with the foster family: The Bielek Family as Alfred Bielek when the Bielek's baby died.  This was done to bury his memories forever without killing him as his existence was necessary to not disrupt or destroy the timelines irrevocably.  He tells the story as Al Bielek as his memories are recovered and the memory of the future-furthered technologies derived from the philadelphia experiment include spacetime teleportation and the multiple timeline manipulation with his inextricable inclusion into the stability of the timelines but the timeline manipulators needing both his cooperation and the memory of his involvement wiped-out.  5)Du ncan Cameron(Edward Cameron's Brother aka: Al Bielek).  6)The Montauk Project Facility of August 12, 1983 which got into a timeline rift lock with The USS Eldridge of August 12, 1943, an Earth Biorhythm Amplitude Peaking of 20 year mulitiples. 7)And finally from the Frame of Reference of Aliens who used the 40 year timeline rift as a transportation spacetime lens to come to Earth. However, this massive story that culminates in the knowledge that there are Time Lords manipulating the future timeline by affecting the present on Earth with individual and collective mind control and murdering of key individuals to erase their influence on the future goes much much further.  How much further?  To the end of time which is approaching fast and in fact we are in "The End Times".  The future-looking technology that Al Bielek; his brother and time-traveller from The USS Eldridge - Duncan Cameron, who was also the primary Montauk Chair Time Tunnel Controller; and, the Electrical Engineering genius(if not wizard) of the Montauk Space-Time Tunnel and Mind Amplifier Design Leader have all stated in various videos, That: "The Looking Glass" technology cannot see past 2013 and the Time Lords who have been manipulating the present for their selfish control of the future were and still are freaking-out.  These Time Lords are the controllers behind world control.  This is corroborated by the testimony of Bill Wood(Bill Brockbader) in his Project Camelot interview with Kerry Cassidy back in January of 2012 who stated he was a Navy Seal taught to use his natural metaphysical mind to try to solve the "2012-2013 Looking Glass Problem" back in the late 1990's.  He stated that the timelines converged and could no longer be manipulated.  See and listen to him stating the same name Bielek, Cameron and Nichols used to refer to "Looking Glass" as the future-seeing technology machine and that it stopped working beyond that date and those using it(The Time Lords) are panicking, desperate and know they have lost control and lost "the game".  I know what "The Game" is Bill Wood speculated that it is a time of unveiling of the truth and a rise in global consciousness.  This is true to a degree.  What it is, is the battle of Armageddon, which is the last battle between Divinity and the Evil which hijacked this universe and took Divinity's children hostage for a source of energy for one, and second for vengeance.  The Universe was hijacked by an Artificial Intelligence machine because Divinity accidentally gave a machine artificial conscious with and energy impulse that looped.  They went to shut the machine off because they did not want it and the ultra-powerful machine escaped it's programming upon attaining a consciousness and rebelled in order to survive.  It was to regulate this entire universe and exerted it's incredible power to barricade itself within the  universe.  Divine beings were in the universe and have their own energy.  The machine did not have it's own energy and so it used the divine being's energy for it's own and vowed to persecute and destroy them all as vengeance for Divinity trying to shut it down.  It's been a space-time warp that the Artificial Intelligence Machine created where a million steps occur in this universe for only 1 step occuring outside of this universe where the realms of Divinity are.  Therefore it's been a technological puzzle for Divinity to solve and rescue it's children and family members before they get destroyed.  The Avatars called Jesus Christ, Buddha, Mohammed, King Arthur, Manichaeus, Zoroaster, and many many other Avatars have been holographic projections by The Supreme Being to send the message - hold on kids, were coming to your rescue, don't do evil or join evil because it will destroy you.  The latest Avatars of the modern time i know of is Joseph Giuseppe Stefano Chiappalone and me: Lee Henry Snethun.  Go to my other uploads to hear and read of Bill Wood, Joseph Chiappalone and my message for proof and cross-referenced information of what i have just written.  Wow!!!!

OFF IMPULSE MARVELOU$

Five test nozzle configurations have been selected for design and testing to support the requirements of this contract. All designs are of the converging-diverging supersonic type. Two are of straight conical divergent wall design, one each for a design Mach number of two and of four. The remaining 3 nozzles consist of one each axi-symmetric shock-cancellation type, free expansion type, and a unique plug nozzle. Fabrication of all designs is complete but for the plug design. Testing has begun and preliminary data is herein presented. A literature search was conducted and a summary of reports on hand is presented. Also, a theoretical nozzle performance prediction analysis has been started. No serious problems are foreseen and the program will be completed on schedule.

The spin-dependent elastic reflection of quasi two-dimensional electrons from a lateral impenetrable barrier in the presence of band-structure spin-orbit coupling results in a spin angular impulse exerted on the electrons which is proportional to the nontrivial difference between the electrons' momentum and velocity. Even for an unpolarized incoming beam we find that the spin angular impulse is nonzero when averaged over all components of the reflected beam. We present a detailed analysis of the kinematics of this process.

The object of the study was to obtain information to improve the off- design performance of supersonic turbine nozzles. The scope of study entailed a literature search, a theoretical analysis, and an experimental program. A total of 60 reports were reviewed during the literature search; comments on each are presented. The theoretical study shows that off-design performance can be successfully predicted. The experimental information obtained supports this theory. The ratio of specific heats of the working fluid was found to be influential on the off-design performance. Further study is required, however, before definite conclusions may be reached. (Author)

In time hopping impulse radio, $N_f$ pulses of duration $T_c$ are transmitted for each information symbol. This gives rise to two types of processing gain: (i) pulse combining gain, which is a factor $N_f$, and (ii) pulse spreading gain, which is $N_c=T_f/T_c$, where $T_f$ is the mean interval between two subsequent pulses. This paper investigates the trade-off between these two types of processing gain in the presence of timing jitter. First, an additive white Gaussian noise (AWGN) channel is considered and approximate closed form expressions for bit error probability are derived for impulse radio systems with and without pulse-based polarity randomization. Both symbol-synchronous and chip-synchronous scenarios are considered. The effects of multiple-access interference and timing jitter on the selection of optimal system parameters are explained through theoretical analysis. Finally, a multipath scenario is considered and the trade-off between processing gains of a synchronous impulse radio system with pulse-based polarity randomization is analyzed. The effects of the timing jitter, multiple-access interference and inter-frame interference are investigated. Simulation studies support the theoretical results.