نتایج جستجو برای: outflow rate
تعداد نتایج: 976657 فیلتر نتایج به سال:
We report on XMM-Newton spectroscopic observations of the luminous radio-quiet quasar PDS 456. The hard X-ray spectrum of PDS 456 shows a deep absorption trough (constituting 50% of the continuum) at energies above 7 keV in the quasar rest frame, which can be attributed to a series of blueshifted K-shell absorption edges due to highly ionized iron. The higher resolution soft X-ray Reflection Gr...
BACKGROUND The purpose of this study was to investigate the impact of metabolic syndrome (MS) on outcome of catheter ablation (CA) for treatment of frequent premature ventricular contraction beats (PVCs) originating from right ventricular outflow tract (RVOT), left ventricular outflow tract (LVOT) or coronary cusps (CUSPs), in patients with normal ventricular systolic function and absence of ca...
[1] The ionospheric O+ outflow varies dramatically during geomagnetic activities, but the influence of its initial characteristics on the magnetospheric dynamics has not been well established. To expand a previous study on the impact of ionospheric heavy ions outflow originating from different source regions on the magnetotail dynamics and dayside reconnection rate, this study conducts two idea...
We discuss accretion and outflow properties of three very low-mass young stellar objects based on broad-band mid-resolution X-Shooter/VLT spectra. Our targets (FUTauA, 2M1207-39, and Par-Lup3-4) have spectral types between M5 and M8, ages between 1Myr and ∼ 10Myr, and are known to be accreting from previous studies. The final objective of our project is the determination of mass outflow to accr...
AIMS To study the effects of topical nipradilol, a non-selective beta blocker with alpha blocking and nitroglycerin-like activities, on intraocular pressure (IOP) and aqueous humour dynamics in normal humans and in patients with ocular hypertension. METHODS Nipradilol (0.06%, 0.125%, 0.25%, 0.5%) was applied to normal volunteers (n = 12) to test for IOP lowering effects. In a second group of ...
An XMM-Newton observation of the bright QSO PG1211+143 in 2001 revealed a blue-shifted absorption line spectrum indicative of a high velocity radial outflow of highly ionised gas. Unless highly collimated, the outflow mass rate was shown to be comparable to the accretion rate, with mechanical energy a significant fraction of the bolometric luminosity. Analysis of the full XMM-Newton data set no...
WITH the observation by Laqueur (1876) that tension of glaucomatous eyes could be reduced with physostigmine, and the corroboration of Weber (1877) that the same effect attended the use of pilocarpine, both substances have found a permanent place in therapy. Their precise action, however, remains obscure (Sugar, 1957; Becker and Shaffer, 1961). Unlike carbonic anhydrase inhibitors, such as acet...
Experimental models are an important instrument for investigations of flow characteristics in blood vessels. For realistic conditions all essential branches of a vessel need to be simulated and controlled. An outflow controlling system was designed for a study on flow conditions in a cerebral aneurysm model with multi outlets. The volumetric flow varied between the outlets. The construction for...
In the previous work (1), potassium (K) exchange was studied in the presence of high concentration of K (40 mm K) in guinea pig's taenia coli by measuring the cellular K content and 42K uptake. In the pre sent work, K outflow rate constants were estimated by 42K outflow studies for the purpose of comparing the constants with those obtained in the previous work. A strip of guinea pig's taenia co...
We present an analysis of UV and optical spectra of NGC 4151 obtained at high spectral and angular resolutions with the Hubble Space Telescope's (HST's) Space Telescope Imaging Spectrograph (STIS). We identify a kinematic component of the emission lines that has a width of 1170 km s −1 (FWHM), intermediate between those from the broad and narrow (emission) line regions (BLR and NLR). We present...
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