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Artykuły w czasopismach na temat „HDE MODEL”

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Data publikacji: 11 września 2023

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1

MALEKJANI, M., and A. KHODAM-MOHAMMADI. "NEW HOLOGRAPHIC CHAPLYGIN GAS MODEL OF DARK ENERGY." International Journal of Modern Physics D 20, no. 03 (2011): 281–97. http://dx.doi.org/10.1142/s0218271811018779.

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In this work, we investigate the holographic dark energy model with a new infrared cutoff (new HDE model), proposed by Granda and Oliveros. Using this new definition for the infrared cutoff, we establish the correspondence between the new HDE model and the standard Chaplygin gas (SCG), generalized Chaplygin gas (GCG) and modified Chaplygin gas (MCG) scalar field models in a nonflat universe. The potential and dynamics for these scalar field models, which describe the accelerated expansion of the universe, are reconstructed. According to the evolutionary behavior of the new HDE model, we derive
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2

Na, Chun-Soo, Sun Young Yoon, Jin Beom Kim, et al. "Anti-fatigue Activity of Hovenia dulcis on a Swimming Mouse Model through the Inhibition of Stress Hormone Expression and Antioxidation." American Journal of Chinese Medicine 41, no. 04 (2013): 945–55. http://dx.doi.org/10.1142/s0192415x13500638.

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Hovenia dulcis (H. dulcis) Thunb., which is distributed in Korea, China, and Japan, has been known to show hepatoprotective and free radical scavenging effects and enhance physical activity. Therefore, the objectives of this present study were to determine the anti-fatigue activity of hot-water extract from H. dulcis peduncle, and to find the reason why H. dulcis extract (HDE)-ingested mice had enhanced physical activity against swimming performance. The mice orally administrated with HDE (HDE-mice) dramatically enhanced their swimming time compared to the control mice. HDE significantly decre
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3

ZHANG, ZHENHUI, MIAO LI, XIAO-DONG LI, SHUANG WANG, and WEN-SHUAI ZHANG. "GENERALIZED HOLOGRAPHIC DARK ENERGY AND ITS OBSERVATIONAL CONSTRAINTS." Modern Physics Letters A 27, no. 20 (2012): 1250115. http://dx.doi.org/10.1142/s0217732312501155.

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In the original holographic dark energy (HDE) model, the dark energy density is proposed to be [Formula: see text], with c a dimensionless constant characterizing the properties of the HDE. In this work, we propose the generalized holographic dark energy (GHDE) model by considering the parameter c as a redshift-dependent function c(z). We derive all the physical quantities of the GHDE model analytically, and fit the c(z) by trying four kinds of parametrizations. The cosmological constraints of the c(z) are obtained from the joint analysis of the present SNLS3+BAO+CMB +H0data. We find that, com
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4

Romberger, Debra J., Art J. Heires, Tara M. Nordgren, et al. "Proteases in agricultural dust induce lung inflammation through PAR-1 and PAR-2 activation." American Journal of Physiology-Lung Cellular and Molecular Physiology 309, no. 4 (2015): L388—L399. http://dx.doi.org/10.1152/ajplung.00025.2015.

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Workers exposed to aerosolized dust present in concentrated animal feeding operations (CAFOs) are susceptible to inflammatory lung diseases, such as chronic obstructive pulmonary disease. Extracts of dust collected from hog CAFOs [hog dust extract (HDE)] are potent stimulators of lung inflammatory responses in several model systems. The observation that HDE contains active proteases prompted the present study, which evaluated the role of CAFO dust proteases in lung inflammatory processes and tested whether protease-activated receptors (PARs) are involved in the signaling pathway for these even
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5

Romberger, Debra J., Art J. Heires, Tara M. Nordgren та ін. "β2-Adrenergic agonists attenuate organic dust-induced lung inflammation". American Journal of Physiology-Lung Cellular and Molecular Physiology 311, № 1 (2016): L101—L110. http://dx.doi.org/10.1152/ajplung.00125.2016.

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Agricultural dust exposure results in significant lung inflammation, and individuals working in concentrated animal feeding operations (CAFOs) are at risk for chronic airway inflammatory diseases. Exposure of bronchial epithelial cells to aqueous extracts of hog CAFO dusts (HDE) leads to inflammatory cytokine production that is driven by protein kinase C (PKC) activation. cAMP-dependent protein kinase (PKA)-activating agents can inhibit PKC activation in epithelial cells, leading to reduced inflammatory cytokine production following HDE exposure. β2-Adrenergic receptor agonists (β2-agonists) a
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6

Qiang, Zou, Liao Li, and Qin Hui. "Flood disaster evaluation based on adaptive fuzzy clustering iterative model and hybrid differential evolution algorithm." Water Supply 19, no. 6 (2019): 1619–29. http://dx.doi.org/10.2166/ws.2019.034.

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Abstract In order to reasonably and rapidly evaluate flood disaster, based on a fuzzy clustering iterative model (FCI) and differential evolution algorithm (DE), an adaptive fuzzy clustering iterative model using a hybrid differential evolution algorithm (AFCI-HDE) is proposed, which has three advantages: firstly, the decision-maker's subjective preference was considered to flexibly modify the objective function; secondly, HDE was introduced to optimize the index weight vector of AFCI; thirdly, the validity of its clustering effect was more credible than that of FCI. Finally, the case study re
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7

Khodam-Mohammadi, A., E. Karimkhani, and A. Sheykhi. "Best values of parameters for interacting HDE with GO IR-cutoff in Brans–Dicke cosmology." International Journal of Modern Physics D 23, no. 10 (2014): 1450081. http://dx.doi.org/10.1142/s0218271814500813.

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We investigate the interacting holographic dark energy (HDE) with Granda–Oliveros (GO) infrared (IR)-cutoff in the framework of Brans–Dicke (BD) cosmology. We obtain the equation of state (EoS) parameter of HDE, wD, the effective EoS parameter w eff , the deceleration parameter q and the squared of sound speed [Formula: see text] in a flat Friedmann–Robertson–Walker (FRW) universe. We show that at late-time the cosmic coincidence problem can be alleviated. Also we show that for noninteracting case, HDE can give a unified dark matter–dark energy (DM–DE) profile in BD cosmology, except that it c
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8

Sheykhi, A., M. H. Dehghani, and S. Ghaffari. "New holographic dark energy model inspired by the DGP braneworld." International Journal of Modern Physics D 25, no. 02 (2016): 1650018. http://dx.doi.org/10.1142/s0218271816500188.

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The energy density of the holographic dark energy (HDE) is based on the area law of entropy, and thus any modification of the area law leads to a modified holographic energy density. Inspired by the entropy expression associated with the apparent horizon of a Friedmann–Robertson–Walker (FRW) universe in DGP braneworld, we propose a new model for the HDE in the framework of DGP brane cosmology. We investigate the cosmological consequences of this new model and calculate the equation of state (EoS) parameter by choosing the Hubble radius, [Formula: see text], as the system’s IR cutoff. Our study
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9

Sheykhi, A., M. Tavayef, and H. Moradpour. "Revisiting holographic dark energy in cyclic cosmology." Canadian Journal of Physics 96, no. 9 (2018): 1034–41. http://dx.doi.org/10.1139/cjp-2017-0434.

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Considering the holographic dark energy (HDE) with two different infrared (IR) cutoffs, we study the evolution of a cyclic universe, which avoids the Big-Rip singularity. Our results show that, even in the absence of a mutual interaction between the cosmos sectors, the HDE model with the Hubble radius as IR cutoff can mimic a cosmological constant in the framework of a cyclic cosmology. In addition, we find that both the interacting and non-interacting universes may enter into a cycle of sequential contraction and expansion, if the Granda–Oliveros cutoff is chosen as the IR cutoff in the energ
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10

Chakraborty, Gargee, Surajit Chattopadhyay, Ertan Güdekli, and Irina Radinschi. "Thermodynamics of Barrow Holographic Dark Energy with Specific Cut-Off." Symmetry 13, no. 4 (2021): 562. http://dx.doi.org/10.3390/sym13040562.

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Motivated by the work of Saridakis (Phys. Rev. D102, 123525 (2020)), the present study reports the cosmological consequences of Barrow holographic dark energy (HDE) and its thermodynamics. The literature demonstrates that dark energy (DE) may result from electroweak symmetry breaking that triggers a phase transition from early inflation to late-time acceleration. In the present study, we incorporated viscosity in the Barrow HDE. A reconstruction scheme is presented for the parameters associated with Barrow holographic dark energy under the purview of viscous cosmology. The equation of state (E
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11

Nojiri, Shin’ichi, Sergei D. Odintsov, and Tanmoy Paul. "Different Faces of Generalized Holographic Dark Energy." Symmetry 13, no. 6 (2021): 928. http://dx.doi.org/10.3390/sym13060928.

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In the formalism of generalized holographic dark energy (HDE), the holographic cut-off is generalized to depend upon LIR=LIRLp,L˙p,L¨p,⋯,Lf,L˙f,⋯,a with Lp and Lf being the particle horizon and the future horizon, respectively (moreover, a is the scale factor of the Universe). Based on such formalism, in the present paper, we show that a wide class of dark energy (DE) models can be regarded as different candidates for the generalized HDE family, with respective cut-offs. This can be thought as a symmetry between the generalized HDE and different DE models. In this regard, we considered several
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12

Sheykhi, Ahmad, and Maral Sahebi Hamedan. "Holographic Dark Energy in Modified Barrow Cosmology." Entropy 25, no. 4 (2023): 569. http://dx.doi.org/10.3390/e25040569.

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Thermodynamics–gravity conjecture implies that there is a deep connection between the gravitational field equations and the first law of thermodynamics. Therefore, any modification to the entropy expression directly modifies the field equations. By considering the modified Barrow entropy associated with the apparent horizon, the Friedmann equations are modified as well. In this paper, we reconsider the holographic dark energy (HDE) model when the entropy is in the form of Barrow entropy. This modification to the entropy not only changes the energy density of the HDE but also modifies the Fried
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13

Dominguez, Edward C., Rattapol Phandthong, Matthew Nguyen, et al. "Aspirin-Triggered Resolvin D1 Reduces Chronic Dust-Induced Lung Pathology without Altering Susceptibility to Dust-Enhanced Carcinogenesis." Cancers 14, no. 8 (2022): 1900. http://dx.doi.org/10.3390/cancers14081900.

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Lung cancer is the leading cause of cancer-related deaths worldwide, with increased risk being associated with unresolved or chronic inflammation. Agricultural and livestock workers endure significant exposure to agricultural dusts on a routine basis; however, the chronic inflammatory and carcinogenic effects of these dust exposure is unclear. We have developed a chronic dust exposure model of lung carcinogenesis in which mice were intranasally challenged three times a week for 24 weeks, using an aqueous dust extract (HDE) made from dust collected in swine confinement facilities. We also treat
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14

Pradhan, Anirudh, Archana Dixit, and Vinod Kumar Bhardwaj. "Barrow HDE model for statefinder diagnostic in FLRW universe." International Journal of Modern Physics A 36, no. 04 (2021): 2150030. http://dx.doi.org/10.1142/s0217751x21500305.

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We have analyzed the Barrow holographic dark energy (BHDE) in the framework of flat FLRW universe by considering the various estimations of Barrow exponent △. Here, we define BHDE, by applying the usual holographic principle at a cosmological system, for utilizing the Barrow entropy rather than the standard Bekenstein–Hawking. To understand the recent accelerated expansion of the universe, consider the Hubble horizon as the IR cutoff. The cosmological parameters, especially the density parameter [Formula: see text], the equation of the state parameter [Formula: see text], energy density [Formu
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15

Moran, Timothy P., Keiko Nakano, Gregory S. Whitehead, Seddon Y. Thomas, Donald N. Cook, and Hideki Nakano. "Inhaled house dust programs pulmonary dendritic cells to promote type 2 T-cell responses by an indirect mechanism." American Journal of Physiology-Lung Cellular and Molecular Physiology 309, no. 10 (2015): L1208—L1218. http://dx.doi.org/10.1152/ajplung.00256.2015.

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The induction of allergen-specific T helper 2 (Th2) cells by lung dendritic cells (DCs) is a critical step in allergic asthma development. Airway delivery of purified allergens or microbial products can promote Th2 priming by lung DCs, but how environmentally relevant quantities and combinations of these factors affect lung DC function is unclear. Here, we investigated the ability of house dust extract (HDE), which contains a mixture of environmental adjuvants, to prime Th2 responses against an innocuous inhaled antigen. Inhalational exposure to HDE conditioned lung conventional DCs, but not m
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16

Lindsay, CD, and DG Upshall. "The generation of a human dermal equivalent to assess the potential contribution of human dermal fibroblasts to the sulphur mustard-induced vesication response." Human & Experimental Toxicology 14, no. 7 (1995): 580–86. http://dx.doi.org/10.1177/096032719501400705.

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1 A human dermal equivalent (HDE) gel was constructed from rat tail tendon collagen (type 1) and human dermal fibroblasts (HFs). Histological studies revealed that the HFs within the HDE gel matrix assumed the shape of differentiated dermal fibroblasts and were metabolically viable as determined by the MTT assay. 2 The HDE system was developed to determine if viable, differentiated HFs have the potential to contribute to tis sue damage by releasing the proteolytic enzyme elastase following exposure to sulphur mustard (HD). Elastase was measured, using the substrate suc-ala-ala-val-p- nitroanil
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17

Ranjit, Chayan, and Prabir Rudra. "Study of some cosmological parameters for interacting new holographic dark energy model in f(T) gravity." International Journal of Modern Physics D 25, no. 01 (2016): 1650008. http://dx.doi.org/10.1142/s0218271816500085.

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The present work is based on the idea of an interacting framework of new holographic dark energy (HDE) with cold dark matter in the background of [Formula: see text] gravity. Here, we have considered the flat modified Friedmann universe for [Formula: see text] gravity which is filled with new HDE and dark matter. We have derived some cosmological parameters like deceleration parameter, equation of state (EoS) parameter, state-finder parameters, cosmographic parameters, Om parameter and graphically investigated the nature of these parameters for the above mentioned interacting scenario. The res
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18

Mishra, Sudip, and Subenoy Chakraborty. "Stability analysis of an interacting holographic dark energy model." Modern Physics Letters A 34, no. 19 (2019): 1950147. http://dx.doi.org/10.1142/s0217732319501475.

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This work deals with dynamical system analysis of Holographic Dark Energy (HDE) cosmological model with different infra-red (IR)-cutoff. By suitable transformation of variables, the Einstein field equations are converted to an autonomous system. The critical points are determined and the stability of the equilibrium points are examined by Center Manifold Theory and Lyapunov function method. Possible bifurcation scenarios have also been explained.
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19

SHARIF, M., and RABIA SALEEM. "DARK ENERGY MODELS AND LAWS OF THERMODYNAMICS IN BIANCHI I MODEL." Modern Physics Letters A 27, no. 33 (2012): 1250187. http://dx.doi.org/10.1142/s0217732312501878.

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This paper is devoted to check validity of the laws of thermodynamics for locally rotationally symmetric (LRS) Bianchi type I (BI) universe model which is filled with combination of dark matter and dark energy (DE). We take two types of DE models, i.e. generalized holographic DE (HDE) and generalized Ricci DE (RDE). It is proved that the first and generalized second law of thermodynamics (GSLT) are valid on the apparent horizon for both the models. Further, we take fixed radius L of the apparent horizon with original holographic or RDE. We conclude that the first and GSLT do not hold on the ho
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20

Zadeh, M. Abdollahi, and A. Sheykhi. "Sign-changeable holographic dark energy in Brans–Dicke theory." Canadian Journal of Physics 97, no. 7 (2019): 726–34. http://dx.doi.org/10.1139/cjp-2018-0413.

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We consider the Brans–Dicke (BD) theory of gravity and explore the cosmological implications of the sign-changeable interacting holographic dark energy (HDE) model in the background of a Friedmann–Robertson–Walker (FRW) universe. As the system’s infrared cutoff, we choose the future event horizon, the Granda–Oliveros (GO), and the Ricci cutoffs. For each cutoff, we obtain the density parameter, the equation of state (EoS), and the deceleration parameter of the system. In case of future event horizon, we find out that the EoS parameter, wD, can cross the phantom line; as a result the transition
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21

Hillier, D. John, Paul A. Crowther, Francisco Najarro de la Parra, and Alexander W. Fullerton. "The extreme P-Cygni star HDE 316285." Symposium - International Astronomical Union 193 (1999): 246–47. http://dx.doi.org/10.1017/s0074180900205421.

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New line-blanketed models for the P-Cygni star HDE 316285 have been calculated. Representative model atoms for H, He I, He II, Ca I, Ca II, Mg I, Mg II, Al II, Al III, Fe II, and Fe III are included in the calculations. We confirm the basic parameters derived by Hillier et al. (1998) in an earlier unblanketed study, and also confirm that many of the optical metal lines are produced by continuum fluorescence. The charge exchange reaction Fe2+ + H ⇌ Fe+ + H + modifies the Fe ionization structure and significantly enhances the strength of the optical Fe II emission lines.
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22

Qiu, Xing-Wei, Ze-Wei Zhao, Ling-Feng Wang, Jing-Fei Zhang, and Xin Zhang. "A forecast of using fast radio burst observations to constrain holographic dark energy." Journal of Cosmology and Astroparticle Physics 2022, no. 02 (2022): 006. http://dx.doi.org/10.1088/1475-7516/2022/02/006.

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Abstract Recently, about five hundred fast radio bursts (FRBs) detected by CHIME/FRB Project have been reported. The vast amounts of data would make FRBs a promising low-redshift cosmological probe in the forthcoming years, and thus the issue of how many FRBs are needed for precise cosmological parameter estimation in different dark energy models should be detailedly investigated. Different from the usually considered w(z)-parameterized models in the literature, in this work we investigate the holographic dark energy (HDE) model and the Ricci dark energy (RDE) model, which originate from the h
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23

Kaur, Simran, and C. P. Singh. "Viscous cosmology in holographic dark energy with Granda–Oliveros cut-off." Communications in Theoretical Physics 75, no. 2 (2023): 025401. http://dx.doi.org/10.1088/1572-9494/aca651.

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Abstract We study the effect of bulk viscosity on holographic dark energy (HDE) with Granda–Oliveros infra-red cut-off. We focus on a generalized form of the bulk viscous coefficient which successfully describes the present-day evolution of the Universe. We observe that the model with bulk viscosity provides an elegant description of the early and late-time evolution of the Universe. We constrain the model through the combined observational data of the Strong Lensing System (SLS), measurements of Hubble parameter, Type Ia supernova data of Pantheon sample and local H 0 measured by SH0ES. Using
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24

Ranjit, Chayan, and Ujjal Debnath. "Analysis of interacting entropy-corrected holographic and new agegraphic dark energies." International Journal of Modern Physics D 27, no. 04 (2018): 1850035. http://dx.doi.org/10.1142/s0218271818500359.

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In the present work, we assume the flat FRW model of the universe is filled with dark matter and dark energy where they are interacting. For dark energy model, we consider the entropy-corrected HDE (ECHDE) model and the entropy-corrected NADE (ECNADE). For entropy-corrected models, we assume logarithmic correction and power law correction. For ECHDE model, length scale [Formula: see text] is assumed to be Hubble horizon and future event horizon. The [Formula: see text]-[Formula: see text] analysis for our different horizons are discussed.
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25

Chiang, Chao Lung. "Hybrid Differential Evolution for Power Economic Dispatch Problems Considering the Incorporated Cost Model." Applied Mechanics and Materials 302 (February 2013): 782–86. http://dx.doi.org/10.4028/www.scientific.net/amm.302.782.

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This paper presents an effective algorithm to solve power economic dispatch (PED) problems considering incorporated cost model of valve-point effects and multiple fuels. The proposed algorithm integrates the hybrid differential evolution (HDE) and the multiplier updating (MU). Few PED problems related studies have seldom addressed both valve-point loadings and change fuels. To show the advantages of the proposed algorithm, was employed to test PED problems with one test system considering the incorporated cost model. Additionally, the proposed algorithm was compared with the differential evolu
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26

Najarro De La Parra, Francisco, D. John Hillier, and Donald F. Figer. "Metal abundances in the Galactic Center." Symposium - International Astronomical Union 193 (1999): 491–92. http://dx.doi.org/10.1017/s007418090020613x.

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Recent progress in model atmospheres for hot stars is presented. The impact of nlte wind-blanketed models is shown by comparison with the ‘old’ standard model. In order to confindently use the IR-spectra of objects at the Galactic Center (with high extinction) to derive their physical properties and trace the metal content, the consistency between results from optical and IR analysis is checked in a calibration study using the B1.5Ia+ star HDE 316285. With the above consistency proved, we started a detail investigation of the Pistol Star. Preliminary results are presented.
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27

Kumar, Praveen, and G. S. Khadekar. "Holographic Dark Energy with Modified Chaplygin Gas and Scalar Field in (2 + 1)−Dimensional Space-time." Journal of the Tensor Society 15, no. 01 (2007): 17–44. http://dx.doi.org/10.56424/jts.v15i01.10615.

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In this paper, we generalized the work of Sheykhi (2011) and Ghose (2014) and establish the connection between Holographic Dark energy interacting with modified Chaplygin gas and then obtain the evolution of holographic dark energy with corresponding equation of state. In the first part of the paper, we have generalized the work of Sheykhi (2011) by choosing Hubble radius as the system’s IR cut-off and constructing the analytical form of the potentials as a function of scalar fields, namely V = V (ϕ) as well as this dynamics of the scalar fields as a function of time, namely ϕ = ϕ(t) then we h
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28

Sharma, Umesh Kumar, and Vipin Chandra Dubey. "Rényi holographic dark energy in the Brans–Dicke cosmology." Modern Physics Letters A 35, no. 34 (2020): 2050281. http://dx.doi.org/10.1142/s0217732320502818.

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In this paper, we construct a holographic dark energy (HDE) model considering the IR cut-off as Hubble horizon, holographic hypothesis, and using the generalized Rényi entropy, and investigate its cosmological outcomes in Brans–Dicke gravity without interaction. We observe the suitable behavior for the cosmological parameters, involving the deceleration parameter, the equation of state (EoS) parameter, and the density parameter in both flat and non-flat Universes. It is also concluded by the stability analysis that the Rényi holographic dark energy (RHDE) model is classically stable at present
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Sharma, Umesh Kumar, та Anirudh Pradhan. "Diagnosing Tsallis holographic dark energy models with statefinder and ω − ω′ pair". Modern Physics Letters A 34, № 13 (2019): 1950101. http://dx.doi.org/10.1142/s0217732319501013.

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A useful method, known as statefinder diagnostic, which may differentiate one dark energy (DE) model from others is applied in this work to a holographic dark energy (HDE) model from Tsallis entropy, called the Tsallis holographic dark energy (THDE) model. The evolutionary trajectories of this model are plotted in the statefinder parameter — planes and [Formula: see text] plane, and it is observed that the parameter [Formula: see text] of this model plays a magnificent role from the statefinder and [Formula: see text] plane viewpoints. Eventually, the evolutionary trajectories are plotted cons
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30

Mahata, Nilanjana, and Subenoy Chakraborty. "A dynamical system analysis of holographic dark energy models with different IR cutoff." Modern Physics Letters A 30, no. 27 (2015): 1550134. http://dx.doi.org/10.1142/s0217732315501345.

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The paper deals with a dynamical system analysis of the cosmological evolution of an holographic dark energy (HDE) model interacting with dark matter (DM) which is chosen in the form of dust. The infrared cutoff of the holographic model is considered as future event horizon or Ricci length scale. The interaction term between dark energy (DE) and DM is chosen of following three types: (i) proportional to the sum of the energy densities of the two dark components, (ii) proportional to the product of the matter energy densities and (iii) proportional to DE density. The dynamical equations are red
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31

Schmutz, W., C. Leitherer, A. V. Torres-Dodgen, et al. "NLTE analysis of R84." International Astronomical Union Colloquium 113 (1989): 289–90. http://dx.doi.org/10.1017/s025292110000467x.

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The LMC star R84 (-HDE 269227 -BR 18) belongs to the group of Ofpe/WN stars believed to be closely related to the Luminous Blue Variables. Support for such a relation comes from the spectral resemblance of these stars to AG Car during visual minimum, and from the observed outburst of the Ofpe/WN star R127.The spectral analysis of R84 presented here is based on model calculations with the NLTE comoving-frame code described by Wessolowski et al. (1988) and references therein. The helium model atom was represented by 28 levels and hydrogen by 9 levels. The free model parameters were varied until
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32

Alam, Mohammad Moksud. "Anisotropic Universe with Manimally Interacting Matter and Holographic Dark Energy." Chittagong University Journal of Science 42, no. 1 (2021): 39–57. http://dx.doi.org/10.3329/cujs.v42i1.54237.

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The holographic dark energy (HDE), a form of dark energy, has been a useful tool in explaining the recent phase transition of the universe. In this paper, we study the anisotropic and homogeneous Bianchi type-III model of the universe filled with minimally interacting matter and holographic dark energy under the framework of the Brans-Dicke (BD) scalar tensor theory of gravitation. Considering two physically plausible conditions such as, (i) the special law of variation for Hubble parameter and (ii) the scalar expansion proportional to the shear scalar, we propose two new models namely, expone
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Ali, Sarfraz, Muhammad Hummad Waheed, Muhammad Imran Asjad, Khuram Ali Khan, Thanin Sitthiwirattham, and Chanon Promsakon. "The Sharma–Mittal Model’s Implications on FRW Universe in Chern–Simons Gravity." Universe 7, no. 11 (2021): 428. http://dx.doi.org/10.3390/universe7110428.

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The Sharma–Mittal holographic dark energy model is investigated in this paper using the Chern–Simons modified gravity theory. We investigate several cosmic parameters, including the deceleration, equation of state, square of sound speed, and energy density. According to the deceleration parameter, the universe is in an decelerating and expanding phase known as de Sitter expansion. The Sharma–Mittal HDE model supports a deceleration to acceleration transition that is compatible with the observational data. The EoS depicts the universe’s dominance era through a number of components, such as ω=0,
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KHODAM-MOHAMMADI, A. "POWER-LAW ENTROPY CORRECTED NEW HOLOGRAPHIC SCALAR FIELD MODELS OF DARK ENERGY WITH MODIFIED IR-CUTOFF." Modern Physics Letters A 26, no. 33 (2011): 2487–99. http://dx.doi.org/10.1142/s0217732311036826.

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In this work, the PLECHDE model with Granda–Oliveros (G–O) IR-cutoff is studied. The evolution of dark energy density, deceleration and EoS parameters are calculated. I demonstrate that under a condition, our universe can accelerate near the phantom barrier at present time. We calculate these parameters also in PLECHDE at Ricci scale, when α = 2 and β = 1, and a comparison between Ricci scale, G–O cutoff and non-corrected HDE without matter field with G–O cutoff is done. The correspondence between this model and some scalar field of dark energy models is established. By this method, the evolut
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35

Srivastava, Milan, and C. P. Singh. "Cosmological evolution of non-interacting and interacting holographic dark energy model in Brans–Dicke theory." International Journal of Geometric Methods in Modern Physics 15, no. 07 (2018): 1850124. http://dx.doi.org/10.1142/s0219887818501244.

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The purpose of this paper is to study the dynamics of non-interacting and interacting holographic dark energy (HDE) models in the framework of Brans–Dicke (BD) cosmology. As system’s infrared cutoff, we consider the future event horizon. The scalar function of BD theory is assumed to be a logarithmic form of scale factor, which is claimed to avoid a constant result for deceleration parameter. We investigate the cosmological implications of this model in detail. We obtain the time-dependent equation of state parameter and deceleration parameter which describe the phase transition of the Univers
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Golchin, Hanif, Sara Jamali, and Esmaeil Ebrahimi. "Interacting dark energy: Dynamical system analysis." International Journal of Modern Physics D 26, no. 09 (2017): 1750098. http://dx.doi.org/10.1142/s0218271817500985.

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We investigate the impacts of interaction between dark matter (DM) and dark energy (DE) in the context of two DE models, holographic (HDE) and ghost dark energy (GDE). In fact, using the dynamical system analysis, we obtain the cosmological consequence of several interactions, considering all relevant component of universe, i.e. matter (dark and luminous), radiation and DE. Studying the phase space for all interactions in detail, we show the existence of unstable matter-dominated and stable DE-dominated phases. We also show that linear interactions suffer from the absence of standard radiation
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Gies, D. R., and C. T. Bolton. "The Optical Spectrum of HDE 226868=Cygnus X-1. III. A Focused Stellar Wind Model for He II lambda 4686 Emission." Astrophysical Journal 304 (May 1986): 389. http://dx.doi.org/10.1086/164172.

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Chakraborty, Gargee, and Surajit Chattopadhyay. "Cosmology of a generalised version of holographic dark energy in presence of bulk viscosity and its inflationary dynamics through slow roll parameters." International Journal of Modern Physics D 29, no. 03 (2020): 2050024. http://dx.doi.org/10.1142/s0218271820500248.

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This study reports a reconstruction scheme of a Dark Energy (DE) model with higher-order derivative of Hubble parameter, which is a particular case of Nojiri–Odintsov holographic DE (HDE) [S. Nojiri and S. D. Odintsov, Gen. Relativ. Gravit. 38 (2006) 1285.] that unifies phantom inflation with the acceleration of the universe on late-time. The reconstruction has been carried out in the presence of bulk viscosity, where the bulk-viscous pressure has been taken as a function of Hubble parameter. Ranges of cosmic time [Formula: see text] have been derived for quintessence, cosmological constant an
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Kern, Renée, Abderrahim Malki, Jad Abdallah, Jihen Tagourti, and Gilbert Richarme. "Escherichia coli HdeB Is an Acid Stress Chaperone." Journal of Bacteriology 189, no. 2 (2006): 603–10. http://dx.doi.org/10.1128/jb.01522-06.

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ABSTRACT We cloned, expressed, and purified the hdeB gene product, which belongs to the hdeAB acid stress operon. We extracted HdeB from bacteria by the osmotic-shock procedure and purified it to homogeneity by ion-exchange chromatography and hydroxyapatite chromatography. Its identity was confirmed by mass spectrometry analysis. HdeB has a molecular mass of 10 kDa in sodium dodecyl sulfate-polyacrylamide gel electrophoresis, which matches its expected molecular mass. We purified the acid stress chaperone HdeA in parallel in order to compare the two chaperones. The hdeA and hdeB mutants both d
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40

Feng, Shaozhen, Zhong Zhong, Jinjin Fan, Xiaoyan Li, Dianchun Shi, and Lanping Jiang. "Upregulated Expression of Intestinal Antimicrobial Peptide HD5 Associated with Renal Function in IgA Nephropathy." Disease Markers 2020 (February 5, 2020): 1–10. http://dx.doi.org/10.1155/2020/2078279.

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Purpose. It was reported that gut-kidney axis may play an important role in IgA nephropathy (IgAN). Previous five GWASs of different populations for IgAN have discovered several genes related to intestinal immunity, including DEFA gene. However, the roles of the encoded proteins of DEFA5/6 which were called intestinal antimicrobial peptides HD5 and HD6 were not clear in kidney disease, such as IgAN. The purpose of this study was to clarify the association of HD5 and HD6 with IgAN. Methods. We measured HD5 and HD6 in serum, urine, and kidney of IgAN patients and normal controls by ELISA, Wester
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Li, Feng, Xuehui Du, Liu Zhang, and Aodi Liu. "Image Feature Fusion Method Based on Edge Detection." Information Technology and Control 52, no. 1 (2023): 5–24. http://dx.doi.org/10.5755/j01.itc.52.1.31549.

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Deep learning-based image processing algorithms have developed rapidly in the past decade and have shown significant improvements to extract image features when both sufficient computing power and big data are accessible. Thus, rapid advances in applications such as facial recognition and autonomous driving have been one of the implementation areas. On the other hand, edges as a low-level prevalence feature in images with independent semantics are practically adapted to attain better outcomes. However, neural network-based image feature extraction focusing on texture rather than shape leads to
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Li, Song, and Yun Chen. "Reconstructing Torsion Cosmology from Interacting Holographic Dark Energy Model." Universe 9, no. 2 (2023): 100. http://dx.doi.org/10.3390/universe9020100.

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We consider a cosmological model in the framework of Einstein–Cartan theory with a single scalar torsion ϕ=ϕ(t) and reconstruct the torsion model corresponding to the holographic dark energy (HDE) density. By studying the corresponding relation between the effective energy density of torsion field ρϕ and holographic dark energy density ρHDE, we naturally obtain a kind of torsion field from the interacting holographic dark energy with interaction term Q=−2ϕρm and ρm is the energy density of matter. We analyze the reconstructed torsion model and find that the torsion field behaves like the quint
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Corvec, Stéphane, Ulrika Furustrand Tafin, Bertrand Betrisey, Olivier Borens та Andrej Trampuz. "Activities of Fosfomycin, Tigecycline, Colistin, and Gentamicin against Extended-Spectrum-β-Lactamase-Producing Escherichia coli in a Foreign-Body Infection Model". Antimicrobial Agents and Chemotherapy 57, № 3 (2013): 1421–27. http://dx.doi.org/10.1128/aac.01718-12.

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ABSTRACTLimited antimicrobial agents are available for the treatment of implant-associated infections caused by fluoroquinolone-resistant Gram-negative bacilli. We compared the activities of fosfomycin, tigecycline, colistin, and gentamicin (alone and in combination) against a CTX-M15-producing strain ofEscherichia coli(Bj HDE-1)in vitroand in a foreign-body infection model. The MIC and the minimal bactericidal concentration in logarithmic phase (MBClog) and stationary phase (MBCstat) were 0.12, 0.12, and 8 μg/ml for fosfomycin, 0.25, 32, and 32 μg/ml for tigecycline, 0.25, 0.5, and 2 μg/ml fo
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Sinha, Swati, Surajit Chattopadhyay, and Irina Radinschi. "Cosmology of viscous holographic f(G) gravity and consequences in the framework of quintessence scalar field." International Journal of Geometric Methods in Modern Physics 16, no. 11 (2019): 1950176. http://dx.doi.org/10.1142/s0219887819501767.

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Work reported in this study demonstrates the reconstruction schemes for the [Formula: see text] gravity in the framework of bulk viscosity and holographic background evolution by considering the universe filled by the viscous fluid that is just special class of more general fluids as described in Nojiri and Odintsov [Inhomogeneous equation of state of the universe: Phantom era, future singularity, and crossing the phantom barrier, Phys. Rev. D 72 (2005) 023003]. The bulk viscous pressure has been considered as [Formula: see text], with [Formula: see text]. Considering the scale factor in power
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Shi, Qingguo, Yihuai Hu, and Guohua Yan. "Hierarchical Multiscale Fluctuation Dispersion Entropy for Fuel Injection System Fault Diagnosis." Polish Maritime Research 30, no. 1 (2023): 98–111. http://dx.doi.org/10.2478/pomr-2023-0010.

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Abstract Marine electronically controlled (ME) two-stroke diesel engines occupy the highest market share in newly-built ships and its fuel injection system is quite different and important. Fault diagnosis in the fuel injection system is crucial to ensure the power, economy and emission of ME diesel engines, so we introduce hierarchical multiscale fluctuation dispersion entropy (HMFDE) and a support matrix machine (SMM) to realise it. We also discuss the influence of parameter changes on the entropy calculation’s accuracy and efficiency. The system simulation model is established and verified
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Qi, Jing-Zhao, Shang-Jie Jin, Xi-Long Fan, Jing-Fei Zhang, and Xin Zhang. "Using a multi-messenger and multi-wavelength observational strategy to probe the nature of dark energy through direct measurements of cosmic expansion history." Journal of Cosmology and Astroparticle Physics 2021, no. 12 (2021): 042. http://dx.doi.org/10.1088/1475-7516/2021/12/042.

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Abstract In the near future, the redshift drift observations in optical and radio bands will provide precise measurements on H(z) covering the redshift ranges of 2<z<5 and 0<z<0.3. In addition, gravitational wave (GW) standard siren observations could make measurements on the dipole anisotropy of luminosity distance, which will also provide the H(z) measurements in the redshift range of 0<z<3. In this work, we propose a multi-messenger and multi-wavelength observational strategy to measure H(z) based on the three next-generation projects, E-ELT, SKA, and DECIGO, and we wish t
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Hirsch, Maria, Natalie Hell, Victoria Grinberg, et al. "Chandra X-ray spectroscopy of the focused wind in the Cygnus X-1 system." Astronomy & Astrophysics 626 (June 2019): A64. http://dx.doi.org/10.1051/0004-6361/201935074.

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We present an analysis of three Chandra High Energy Transmission Gratings observations of the black hole binary Cyg X-1/HDE 226868 at different orbital phases. The stellar wind that is powering the accretion in this system is characterized by temperature and density inhomogeneities including structures, or “clumps”, of colder, more dense material embedded in the photoionized gas. As these clumps pass our line of sight, absorption dips appear in the light curve. We characterize the properties of the clumps through spectral changes during various dip stages. Comparing the silicon and sulfur abso
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48

Zadeh, M. Abdollahi, A. Sheykhi, and H. Moradpour. "Holographic dark energy with the sign-changeable interaction term." International Journal of Modern Physics D 26, no. 08 (2017): 1750080. http://dx.doi.org/10.1142/s0218271817500808.

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We use three infrared (IR) cutoffs, including the future event horizon, the Hubble and Granda–Oliveros (GO) cutoffs, to construct three holographic models of dark energy (DE). Additionally, we consider a Friedmann–Robertson–Walker (FRW) universe filled by a dark matter (DM) and a DE that interact with each other through a mutual sign-changeable interaction with positive coupling constant. Thereinafter, we address the evolution of the some cosmological parameters, such as the equation of state (EoS) and dimensionless density parameters of DE as well as the deceleration parameter, during the cos
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Duraffour, Sophie, Robert Snoeck, Marcela Krečmerová, et al. "Activities of Several Classes of Acyclic Nucleoside Phosphonates against Camelpox Virus Replication in Different Cell Culture Models." Antimicrobial Agents and Chemotherapy 51, no. 12 (2007): 4410–19. http://dx.doi.org/10.1128/aac.00838-07.

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ABSTRACT Camelpox virus (CMLV) is the closest known virus to variola virus. Here we report on the anti-CMLV activities of several acyclic nucleoside phosphonates (ANPs) related to cidofovir [(S)-1-(3-hydroxy-2-phosphonomethoxypropyl)cytosine (HPMPC; Vistide)] against two CMLV strains, CML1 and CML14. Cytopathic effect (CPE) reduction assays performed with human embryonic lung fibroblast monolayers revealed the selectivities of the first two classes of ANPs (cHPMPA, HPMPDAP, and HPMPO-DAPy) and of the hexadecyloxyethyl ester of 1-{[(5S)-2-hydroxy-2-oxido-1,4,2-dioxaphosphinan-5-yl]methyl}-5-aza
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Jawad, Abdul, Kazuharu Bamba, Muhammad Younas, Saba Qummer, and Shamaila Rani. "Tsallis, Rényi and Sharma-Mittal Holographic Dark Energy Models in Loop Quantum Cosmology." Symmetry 10, no. 11 (2018): 635. http://dx.doi.org/10.3390/sym10110635.

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The cosmic expansion phenomenon is being studied through the interaction of newly proposed dark energy models (Tsallis, Rényi and Sharma-Mittal holographic dark energy (HDE) models) with cold dark matter in the framework of loop quantum cosmology. We investigate different cosmic implications such as equation of state parameter, squared sound speed and cosmological plane (ω d - ω d ′ , ω d and ω d ′ represent the equation of state (EoS) parameter and its evolution, respectively). It is found that EoS parameter exhibits quintom like behavior of the universe for all three models of HDE. The squar
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