In the near future, gravitational wave detection is set to become an important observational tool for astrophysics. It will provide us with an excellent means to distinguish different gravitational theories. In effective form, many gravitational theories can be cast into an f (R) theory. In this article, we study the dynamics and gravitational waveform of an equal-mass binary black hole system in f (R) theory. We reduce the equations of motion in f (R) theory to the Einstein-Klein-Gordon coupled equations. In this form, it is straightforward to modify our existing numerical relativistic codes to simulate binary black hole mergers in f (R) theory. We considered binary black holes surrounded by a shell of scalar field. We solve the initial data numerically using the Olliptic code. The evolution part is calculated using the extended AMSS-NCKU code. Both codes were updated and tested to solve the problem of binary black holes in f (R) theory. Our results show that the binary black hole dynamics in f (R) theory is more complex than in general relativity. In particular, the trajectory and merger time are strongly affected. Via the gravitational wave, it is possible to constrain the quadratic part parameter of f (R) theory in the range |a2| < 10 11 m 2 . In principle, a gravitational wave detector can distinguish between a merger of binary black hole in f (R) theory and the respective merger in general relativity. Moreover, it is possible to use gravitational wave detection to distinguish between f (R) theory and a non self-interacting scalar field model in general relativity.
Exposure to ethanol in utero compromises the offspring's developing immune and endocrine systems. Persistent functional changes, particularly in T-cell-dependent aspects of immunity and in hypothalamic-pituitary-adrenal activity, are commonly seen. The present study examined the degree to which fetal alcohol exposure (FAE) during development suppressed the lymphocyte proliferative response to Concanavalin-A (Con A). We also examined the effect of maternal adrenalectomy on the expression of glucocorticoid-regulated genes and the response to Con A in FAE offspring. Con A-stimulated lymphocyte proliferation was stably suppressed (between 28-46%) in FAE males compared to isocalorically pair-fed offspring at 7, 21, 40, and 60 days of age. In contrast, lymphocyte proliferation in the immature or peripubertal FAE female was totally unaffected. In 60-day- old male rats, maternal adrenalectomy reversed the FAE-induced suppression of Con A-stimulated proliferation, but had no effect on lymphocyte proliferation. FAE increased anterior pituitary POMC (the precursor of ACTH) mRNA levels dramatically in males, and this increase was also reversed by maternal adrenalectomy. In both sexes, anterior pituitary glucocorticoid receptor mRNA levels were unaffected by prenatal alcohol exposure alone, but were significantly decreased in male and increased in female offspring of adrenalectomized dams ingesting alcohol. Furthermore, in male, but not female, offspring, hypothalamic levels of glucocorticoid receptor and CRF mRNA were increased significantly by FAE alone or in combination with maternal adrenalectomy. In female, but not male, offspring, maternal adrenalectomy with concomitant alcohol exposure increased anterior pituitary POMC mRNA levels compared to that in sham/pair-fed offspring. In summary, FAE induced a gender-specific impairment of Con A-stimulated lymphocyte proliferation. This deficit is present both before and after puberty, demonstrating its stability into adulthood. Furthermore, in males, maternal adrenalectomy reversed these FAE-induced deficits in T-cell function as well as the effect of FAE on anterior pituitary POMC expression. This supports the hypothesis that maternal adrenal hormones participate in the immunosuppressive "imprinting" of the FAE fetus and are, therefore, causally implicated in the sexually dimorphic T-cell dysfunction found in FAE offspring.
In order to improve the positioning accuracy and reduce the localization cost, a kind of PSO-based RFID indoor localization algorithm is proposed in this paper. The main idea of this algorithm contains the following two aspects. First, due to the influence of none line of sight and multipath transmission in indoor environment, we adopt Gaussian Smoothing Filter to process Received Signal Strength Indicator (RSSI) values, which can reduce the impact of environmental factors on the position estimation effectively. Second, Particle of Swarm Optimization (PSO) algorithm is introduced to obtain a better positioning result. By experimenting in different indoor environment, the results demonstrate that the proposed approach can not only improve the precision of indoor localization, but has a lower cost and better robustness when compared to VIRE approach.
The motion-blurred image restoration has been the difficulty of the field of image processing. In this paper, proposed a motion-blurred length method based on Fourier transform of the parameter estimation method. The method improved the accuracy of the blurred length estimation. The method improved the effect of the motion-blurred image restoration. The experiments verified that the accuracy and feasibility of the method proposed.
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