نتایج جستجو برای: jt
تعداد نتایج: 2009 فیلتر نتایج به سال:
Comparative studies were carried out to elucidate the most essential parameter(s) for control of density profiles in LHD heliotron and JT-60U tokamak plasmas. Different collisionality dependence was found between two devices. Change of fluctuation property was observed at different density profile in both devices in plasma core region. In JT-60U, increase of radial correlation length was observ...
Joint Transmission (JT), a novel downlink transmission scheme, was introduced and described in recent papers. The crux of JT consists in exploiting channel state knowledge at the base stations to jointly generate a common transmit signal for the support of all mobile terminals, with the aim to directly eliminate intersymbol interference and intracell multiple access interference while transmitt...
In ultra-dense networks (UDNs), distributed radio access points (RAPs) are configured into small virtual cells around mobile users for fair and high-throughput services. In this correspondence, we evaluate the performance of user-centric joint transmission (JT) in a UDN with a number of virtual cells. In contrast to existing cooperation schemes, which assume constant RAP transmit power, we cons...
OBJECTIVES The aim of this study was to define the spatiotemporal distribution of intracardiac alternans and its relationship to body surface alternans in humans. BACKGROUND Spatial heterogeneity of alternans exists in the animal heart owing to nonuniform calcium cycling and restitution kinetics. Patients with cardiomyopathy manifest similar myocardial substrate, which might influence the dis...
BACKGROUND Hyperparathyroidism is a common endocrinopathy characterised by the formation of parathyroid tumours. In this study, we determine the role of the recently identified gene, HRPT2, in parathyroid tumorigenesis. METHODS Mutation analysis of HRPT2 was undertaken in 60 parathyroid tumours: five HPT-JT, three FIHP, three MEN 1, one MEN 2A, 25 sporadic adenomas, 17 hyperplastic glands, tw...
A Monte Carlo EM method of nonstationary covariance model and estimator proposed in the main text is illustrated with an application to surface ozone data from an irregularly distributed environmental monitoring network. It is useful to display the predicted covariances visually to convey the form of nonstationarity. Figure 1 shows nonstationary covariance structures of the surface ozone, obtai...
OBJECTIVES This study tested the correlation of QT and JT dispersion and other potentially useful electrocardiographic (ECG) indexes with dispersion of repolarization and recovery time. BACKGROUND Dispersion of ventricular repolarization is currently being assessed noninvasively from the surface ECG by means of QT and JT dispersion, although their correlation with dispersion of repolarization...
Lloyd TC (1966b) Role of nerve pathways in the hypoxic vasoconstriction of lung. J Appl Physiol 21: 1351-1355 McMurtry IF, Davidson AB, Reeves JT, Grover RF (1976) Inhibition of hypoxic pulmonary vasoconstriction by calcium antagonists in isolated rat lungs. Circ Res 38: 99-104 Mills E, Jobsis FF (1972) Mitochondrial respiratory chain of carotid body and chemoreceptor response to changes in oxy...
اثر جانبی آنتاگونیست¬های رسپتور 5-ht3 بر قلب، یک مبحث تحت مطالعه و بررسی پویا می¬باشد و گرانیسترون هیدروکلراید به عنوان یکی از داروهای این دسته، امروزه به منظور مصارف درمانی متعدد از جمله انکولوژی و استفراغ¬های حاد ناشی از گاستروانتریت¬های پاروو ویروسی در سگ¬ها درحال پیشرفت می¬باشد. این مطالعه به منظور ارزیابی اثرات الکتروکاردیوگرافی یک تک دوز آهسته وریدی داروی گرانیسترون انجام شد. 16 قلاده سگ ...
BACKGROUND Myocardial ischemia is one of several causes of prolonged QT dispersion. The aim of this study was to evaluate the effect that percutaneous coronary intervention has on the depolarization and repolarization parameters of surface electrocardiography in patients with chronic stable angina. METHODS We assessed the effects of full revascularization in patients with chronic stable angin...
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