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Light Speed Expansion and Rotation of a very Dark machian universe Having Internal Acceleration

International Journal of Astronomy and Astrophysics 2020年第3期10卷 247-283页

作者： u. v. S Seshavatharam S. Lakshminarayana Honorary Faculty I-SERVE Survey No-42 Hitech City Hyderabad India Department of Nuclear Physics Andhra University Visakhapatnam India

We present a machian model of Quantum Cosmology with full dark matter and light speed expansion and rotation. During galaxy formation and evolution, fraction of dark matter transforms to visible matter with a relation of the form, m_vis = constant * (m_dark)up>2/3up>. using this relation and replacing mOND’s “critical acceleration” with “current cosmic maximum angular acceleration”, galactic flat rotation speed range of (50 to 500) km/sec can be fitted well. Estimated flat rotation speeds of DD168, milky Way and uGC12591 are 49.96 km/sec, 199.66 km/sec and 521.75 km/sec respectively. Based on these striking coincidences, it is possible to say that, mOND’s approach is implicitly connected with cosmological estimation of 95% invisible matter. With reference to SPARC data for flat rotation speeds and current cosmic maximum angular acceleration, galactic total mass can be estimated. Considering galactic total mass, galactic visible mass and dark mass can be estimated. Proceeding further, galactic working radii, angular velocity and visible matter density can be estimated. Estimated milky Way’s effective radius is 293 kpc. Even though, this model is free from “big bang”, “inflation”, “dark energy”, “flatness” and “red shift” issues, at 2.722 K, estimated present Hubble parameter is 66.24 km/sec/mpc, cosmic radius is 146.3 times of the Hubble radius, angular velocity is 146.3 times lower than the Hubble parameter and cosmic age is 146.3 times of the Hubble age. With future observations and advanced telescopes, it may be possible to see far distant galaxies and very old stars far beyond the current observable cosmic radius.

关键词： Planck Scale machian universe Speed of Light Galactic Dark matter Galactic visible mass Galactic visible mass Density Cosmic Anisotropy Galactic Internal Acceleration Cosmic Graviton Wavelength

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Zernike-coefficient extraction via helical beam reconstruction for optimization(ZEHBRO) in the far field

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High Power Laser Science and Engineering 2023年第6期11卷 213-222页

作者： J.B.Ohland D.Posor u.Eisenbarth v.Iancu R.ungureanu D.ursescu v.Bagnoud GSI Helmholtzzentrum für Schwerionenforschung DarmstadtGermany Institut für angewandte Physik Technische Universität DarmstadtDarmstadtGermany Helmholtz-Institut Jena JenaGermany ELI-NP Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering(IFIN-HH)M agureleIlfovRomania Faculty of Physics University of BucharestM agureleIlfovRomania Center for Advanced Laser Technologies(CETAL) National Institute for LaserPlasma and Radiation Physics(INFLPR)M agureleIlfovRomania

The spatial distribution of beams with orbital angular momentum in the far field is known to be extremely sensitive to angular aberrations,such as astigmatism,coma and *** poses a challenge for conventional beam optimization strategies when a homogeneous ring intensity is required for an *** developed a novel approach for estimating the Zernike coefficients of low-order angular aberrations in the near field based solely on the analysis of the ring deformations in the far field.A fast,iterative reconstruction of the focal ring recreates the deformations and provides insight into the wavefront deformations in the near field without relying on conventional phase retrieval *** output of our algorithm can be used to optimize the focal ring,as demonstrated experimentally at the 100 TW beamline at the Extreme Light Infrastructure-Nuclear Physics facility.

关键词： beam quality far field orbital angular momentum ring intensity phase retrieval wavefront

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Slope mass rating and kinematic analysis of slopes along the national highway-58 near Jonk, Rishikesh, India

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Journal of Rock mechanics and Geotechnical Engineering 2015年第5期7卷 600-606页

作者： Tariq Siddique m.masroor Alam m.E.A.mondal v.vishal Department of Earth Sciences Indian Institute of Technology Roorkee Department of Geology Aligarh Muslim University Department of Civil Engineering Aligarh Muslim University

The ro ad n etw o rk in th e H im alayan terrain , connecting re m o te areas e ith e r in th e valleys o r on th e hillslopes, plays a pivotal role in socio-econom ic d e v elo p m en t ofIn d ia. The planning, d ev elo p m en t an d evenm ain ten an ce o f ro ad an d rail netw o rk s in such precarious terrain s are alw ays a challenging task becauseo f com plexities p osed by topography, geological stru ctu res, varied lithology an d neotectonics. Increasingp o p u latio n an d c o n stru ctio n o f roads have led to destab ilisatio n o f slopes, th u s leading to m ass w astingand m ovem ent, fu rth e r aggravation d u e to recen t events o f cloud bu rsts and u n p re c e d e n te d flash floods.v ulnerability analysis o f slopes is an im p o rta n t co m p o n e n t for th e ＂Landslide H azard A ssessm ent＂ and＂Slope mass C h aracterisation＂ guide p lan n ers to p red ict an d choose suitable w ays for c o n stru ctio n ofroads and o th e r en g in eerin g stru ctu res. The pro b lem o f landslides along th e n ational highw ay-58 （NH-58） from Rishikesh to D evprayag is a co m m o n scene. The slopes along th e NH-58 b e tw e e n Jonk andRishikesh w ere investigated, w h ich experienced v ery heavy traffic especially from m arch to A ugust dueto pilgrim age to K edarnath shrine. On th e basis o f slope m ass rating （SmR） investigation, th e area falls instable class, an d landslide susceptibility score （LSS） values also indicate th a t th e slopes u n d e r investigationfall in low to m o d erate v ulnerability to landslide. more atte n tio n s should be paid to th e slopes toachieve g reater safe an d econom ic b enefits along th e highw ay.

关键词： Slope mass rating(SmR) Kinematic analysis Landslide susceptibility score(LSS) vulnerability to landslide

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A Deep Learning modeling Framework to Capture mixing Patterns in Reactive-Transport Systems

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Communications in Computational Physics 2022年第1期31卷 188-223页

作者： N.v.Jagtap m.K.mudunuru K.B.Nakshatrala Department of mechanical Engineering University of HoustonTexas 77204USA Atmospheric Sciences&Global Change Division Pacific Northwest National LaboratoryRichlandWashington 99352USA Department of Civil&Environmental Engineering University of HoustonHoustonTexas 77204USA

Prediction and control of chemical mixing are vital for many scientific areas such as subsurface reactive transport, climate modeling, combustion, epidemiology, and pharmacology. Due to the complex nature of mixing in heterogeneous andanisotropic media, the mathematical models related to this phenomenon are not analytically tractable. Numerical simulations often provide a viable route to predict chemical mixing accurately. However, contemporary modeling approaches for mixing cannot utilize available spatial-temporal data to improve the accuracy of the future prediction and can be compute-intensive, especially when the spatial domain is large andfor long-term temporal predictions. To address this knowledge gap, we will present inthis paper a deep learning (DL) modeling framework applied to predict the progress ofchemical mixing under fast bimolecular reactions. This framework uses convolutionalneural networks (CNN) for capturing spatial patterns and long short-term memory(LSTm) networks for forecasting temporal variations in mixing. By careful design ofthe framework—placement of non-negative constraint on the weights of the CNN andthe selection of activation function, the framework ensures non-negativity of the chemical species at all spatial points and for all times. Our DL-based framework is fast,accurate, and requires minimal data for training. The time needed to obtain a forecastusing the model is a fraction (≈ O(10−6)) of the time needed to obtain the result using a high-fidelity simulation. To achieve an error of 10% (measured using the infinitynorm) for capturing local-scale mixing features such as interfacial mixing, only 24%to 32% of the sequence data for model training is required. To achieve the same levelof accuracy for capturing global-scale mixing features, the sequence data required formodel training is 64% to 70% of the total spatial-temporal data. Hence, the proposedapproach—a fast and accurate way to forecast long-time spatial-temporal mixin

关键词： Deep learning reactive-transport non-negative solutions spatial-temporal forecasting pattern recognition convolutional neural networks(CNN) long short-term memory(LSTm) networks

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The L4n laser beamline of the P3-installation:Towards high-repetition rate high-energy density physics at ELI-Beamlines

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matter and Radiation at Extremes 2021年第1期6卷 45-53页

作者： N.Jourdain u.Chaulagain m.Havlik D.Kramer D.Kumar v.T.Tikhonchuk G.Korn S.Weber ELI-Beamlines Institute of PhysicsCzech Academy of Sciences18221 PragueCzech Republic Centre Lasers Intenses et Applications University of Bordeaux-CNRS-CEA33405 TalenceFrance School of Science Xi’an Jiaotong UniversityXi’an 710049China

The P3 installation of ELI-Beamlines is conceived as an experimental platform for multiple high-repetition-rate laser beams spanning time scales from femtosecond via picosecond to *** upcoming L4n laser beamline will provide shaped nanosecond pulses of up to 1.9 kJ at a maximum repetition rate of 1 shot/*** beamline will provide unique possibilities for high-pressure,high-energy-density physics,warm dense matter,and laser–plasma interaction *** to the high repetition rate,it will become possible to obtain considerable improvements in data statistics,in particular,for equation-of-state data *** nanosecond beam will be coupled with short sub-picosecond pulses,providing high-resolution diagnostic tools by either irradiating a backlighter target or driving a betatron setup to generate energetic electrons and hard X-rays.

关键词： laser repetition beam

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The ALmaQuEST Survey ⅩⅤ:The dependence of the molecular-to-atomic gas ratios on resolved optical diagnostics

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Science China(Physics,mechanics & Astronomy) 2024年第9期67卷 174-196页

作者： Niankun Yu Zheng Zheng Chao-Wei Tsai Pei Zuo Sara L.Ellison David v.Stark Di Li Jingwen Wu Karen L.masters Ting Xiao Yinghui Zheng Zongnan Li Kai Zhang Hongying Chen Shu Liu Sihan Jiao Fanyi meng National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Key Laboratory of Radio Astronomy and Technology Chinese Academy of SciencesBeijing 100101China Institute for Frontiers in Astronomy and Astrophysics Beijing Normal UniversityBeijing 102206China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China Department of Physics&Astronomy University of VictoriaVictoriaV8P 1A1Canada Departments of Physics and Astronomy Haverford CollegeHaverford19041USA Space Telescope Science Institute San Martin Dr.Baltimore 21218USA Zhejiang Laboratory Hangzhou 311121China New Cornerstone Science Laboratory Shenzhen 518054China School of Physics Zhejiang UniversityHangzhou 310058China

The atomic-to-molecular gas conversion is a critical step in the baryon cycle of galaxies,which sets the initial conditions for subsequent star formation and influences the multi-phase interstellar *** compiled a sample of 94 nearby galaxies with observations of multi-phase gas contents by utilizing public H_(Ⅰ),CO,and optical IFu data from the ma NGA survey together with new FAST H_(Ⅰ)*** agreement with previous results,our sample shows that the global molecular-to-atomic gas ratio(R_(mol)≡log m_(H2)/m_(H_(Ⅰ)))is correlated with the global stellar mass surface densityμ_*with a Kendall'sτcoefficient of 0.25 and put still correlated with stellar mass and Nuv-r color,and not related to the specific star formation rate(sSFR).The cold gas distribution and kinematics inferred from the H_(Ⅰ)and CO global profile asymmetry and shape do not significantly rely on R_(mol).Thanks to the availability of kpc-scale observations of maNGA,we decompose galaxies into H_(Ⅱ),composite,and AGN-dominated regions by using the BPT *** increasing R_(mol),the fraction of H_(Ⅱ)regions within 1.5 effective radius decreases slightly;the density distribution in the spatially resolved BPT diagram also changes significantly,suggesting changes in metallicity and ionization *** with high R_(mol)tend to have high oxygen abundance,both at one effective radius with a Kendall'sτcoefficient of 0.37(pmeters investigated here,the oxygen abundance at one effective radius has the strongest relation with global R_(mol).The dependence of gas conversion on gas distribution and galaxy ionization states is *** contrast,the observed positive relation between oxygen abundance(μ_(*))and R_(mol)indicates that the gas conversion is efficient in regions of high metallicity(density).

关键词： Galaxies baryon cycle radio lines H_(Ⅰ)21 cm atomic-to-molecular gas conversion

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Evaluation of genetic diversity in short duration cotton(Gossypium hirsutum L.)

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Journal of Cotton Research 2018年第4期1卷 12-17页

作者： AKTER T. ISLAm A.K.m.A. RASuL m.G. KuNDu S. KHALEQuZZAmAN AHmED J.u. Department of Genetics and Plant Breeding Bangabandhu Sheikh Mujibur Rahman Agricultural University Cotton Development Board (CBD) Department of Crop Botany Bangabandhu Sheikh Mujibur Rahman Agricultural University

Background: Cotton(Gossypium hirsutum L.) is an important fiber crop in Bangladesh. Genetic diversity among the genotypes of a germplasm has a great importance for cotton breeding. An experiment was carried out at the experimental field of Cotton Research, Training and Seed multiplication Farm, Sreepur, Gazipur during the cropping season of 2015-2016 with 100 genotypes to evaluate genetic diversity of cotton genotypes for short duration using field ***: The genotypes under study were grouped into ten clusters through multivariate analysis using *** III contained maximum number of genotypes(16) while cluster X contained the least number of genotypes(7).The inter cluster distances were larger than intra cluster distances in all cases suggesting wider genetic diversity among the genotypes of different clusters. The maximum and minimum inter cluster distances were observed between clusters II and v(10.78) and clusters vIII and IX(3.30), respectively. The results indicated diverse and close relationship among the genotypes of those clusters. Earliness index, single boll weight and days to boll opening showed the higher contribution to the genetic divergence among 19 ***: Based on the results of genetic diversity and earliness index, the genotypes from cluster Ⅱ could be used as parent in hybridization program for the development of short duration cotton variety.

关键词： Cotton(Gossypium hirsutum L.) Genetic diverity Earliness index GOT Yield

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Franck-Condon factors and γ-Centroids for the A^1 ∑^＋ u-X^1∑^＋ 9 Band System of ^107,109Ag2： Comparison of the Observed and Calculated Absorption Band Strengths

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Chinese Physics Letters 2007年第9期24卷 2566-2568页

作者： A.Antic-Jovanovic m.Kuzmanovic v.Bojovic murtadha A.Khakoo Russ R.Laher Faculty of Physical Chemistry University of Belgrade PO Box 137 1001 Belgrade Serbia Department of Physics California State University Fullerton Fullerton CA 92834 USA Spitzer Science Center California Institute of Technology M/S 314-6 Pasadena CA 91125 USA

Franck-Condon factors and r-centrolds for the, A^1 ∑^＋ u-X^1∑^＋ 9 band system of ^107,109Ag2 are computed using morse and Rydberg-Klein-Rees potentials for both lower and upper electronic states. The differences between the two sets of results are typically in the third decimal place for transitions involving vibrational levels with ν＇ and ν＂ up to about 15. Somewhat larger deviations appear for higher vibrational levels, but both sets of results follow the same pattern, which is to match well with the relative absorption band strength distribution in our experimental spectrum. The relative absorption band strengths are calculated by assuming that the electronic transition moment has only a weak dependence on the internuclear distance r. Good agreement between our measured and calculated absorption band strength ratios is found, which provides an excellent test of the calculated Franck- Condon factors and relative absorption band strengths. The r-centrold value for the （ν＇ = 0, ν＂ = 0） band is found to be approximately equal to the average value of r＇ and r＇＇e , indicating that the potentials of both states are not significantly aaharmonic around their minimum regions.

关键词： Franck-Condon Rydberg-Klein-Rees Comparison

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Study of modern seismic zoning maps'accuracy(case for Eastern uzbekistan)

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Geodesy and Geodynamics 2016年第6期7卷 416-424页

作者： T.u.Artikov R.S.Ibragimov T.L.Ibragimova m.A.mirzaev Institute of Seismology Academy of Science of the Republic of UzbekistanTashkentUzbekistan

Influence of uncertainty factors of input parameters on results of the estimation of seismic hazard has been researched. It is found that the largest deviations, from seismic hazard maps designed on the basis of average values of distribution of seismic mode and seismic load parameters, may arise due to the imprecise depth of earthquake sources （H）, uncertain estimations of seismic potential and slope of recurrence curve （v）. The contribution of such uncertainty factors, like imprecise definition of seismic activity Alo, incorrect choice of prevailing type of a motion in the source, using regional laws of attenuation of seismic load intensity in distance instead of local once are substantially small. For Eastern uzbekistan, it was designed the seismic hazard map with the highest value which takes into account every possible factors of uncertainty in parameters of seismic mode and seismic load.

关键词： Seismic hazardSeismic potentialSeismic activitySeismic intensitySeismic zoningSeismic sources

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An Event Horizon Imager(EHI) mission Concept utilizing medium Earth Orbit Sub-mm Interferometry

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空间科学学报 2021年第2期41卷 211-233页

作者： KuDRIASHOv v mARTIN-NEIRA m ROELOFS F FALCKE H BRINKERINK C BARYSHEv A HOGERHEIJDE m YOuNG A POuRSHAGHAGHI H KLEIN-WOLT m mOSCIBRODZKA m DAvELAAR J BARAT I DuESmANN B vALENTA v PERDIGuES ARmENGOL J m DE WILDE D mARTIN IGLESIAS P ALAGHA N vAN DER vORST m Department of Astrophysics/ImAPP Radboud University NijmegenP.O.Box 90106500 GL Nijmegenthe Netherlands ESTEC/ESA Keplerlaan 12201 A2 Noordurigkthe Netherlands mar Planck Institute for Radio Astrorny Auf dem Higel 69D-53121 Bon(Endenich)Germany university of Groningen Landleven 129747 AD Groningenthe Netherlands Leiden Observatory Leiden UniversityPO Box 95132300 RALeidenthe Netherlands Anton Pannekoek Institute for Astronomy University of AmsterdamScience Park 9041098 XHAmsterdamthe Netherlands Center for Computational Astrophysics Flatiron Institute162 Fifth AvenueNew YorkNY 10010USA

Submillimeter interferometry has the potential to image supermassive black holes on event horizon scales,providing tests of the theory of general relativity and increasing our understanding of black hole accretion *** Event Horizon Telescope(EHT) performs these observations from the ground,and its main imaging targets are Sagittarius A~* in the Galactic Center and the black hole at the center of the m87 ***,the EHT is fundamentally limited in its performance by atmospheric effects and sparse terrestrial(u,v)-coverage(Fourier sampling of the image).The scientific interest in quantitative studies of the horizon size and shape of these black holes has motivated studies into using space interferometry which is free of these *** resolution considerations and interstellar scattering effects push the desired observing frequency to bands above 500 *** paper presents the requirements for meeting these science goals,describes the concept of interferometry from Polar or Equatorial medium Earth Orbits(PECmEO) which we dub the Event Horizon Imager(EHI),and utilizes suitable space technology *** this concept,two or three satellites orbit at slightly different orbital radii,resulting in a dense and uniform spiral-shaped(u,v)-coverage over *** local oscillator signals are shared via an inter-satellite link,and the data streams are correlated on-board before final processing on the ***-satellite metrology and satellite positioning are extensively employed to facilitate the knowledge of the instrument position vector,and its time *** European space heritage usable for both the front ends and the antenna technology of such an instrument is *** and future sensors for the required inter-satellite metrology are *** performance estimates and simulation results are given.

关键词： Instrumentation Space vLBI Radio Telescopes

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