نتایج جستجو برای: rejection coefficient
تعداد نتایج: 203427 فیلتر نتایج به سال:
Background & Aim: Previously, patients with end stage renal failure(ESRF) and lower urinary tract abnormality(LUTA) were often considered high risk for renal transplantation. In order to examine the degree of risk, 48 patients who received renal transplants in Labafi Nejad Hospital were evaluated between 1986 and 2003. Patients & Method: In this retrospective cohort study, the mean age of t...
This study sought to predict identity styles based on the relationship between perceived parenting and girls’ negative attitude towards their fathers. The research method was descriptive and correlational. The statistical population of the study comprised all 11th graders and pre-university students enrolled in public schools in Karaj in 2015-16 school year. Utilizing multistage cluster samplin...
Measurements are increasingly used to augment traditional assessments of structural state. Measurements of deflections, rotations and strain provide indications of damages as well as changes in the values of parameters such as Young’s modulus. Finite element model updating methods have been developed in the 1990s for identifying structural state from measurements. Currently most methods aim to ...
Several investigators of EEG time series reported a rejection of the null hypothesis of linear stochastic dynamics for epochs longer than 10 s. We examine whether this rejection is related to nonlinearity or to nonstationarity. Our approach is a combination of autoregressive modeling and surrogate data testing. It is shown that the fraction of subsegments, for which the null hypothesis has to b...
Extraction of foetal heartbeat rate from a single passive sound sensor on the mother’s abdomen is demonstrated. The extraction is based on the assumption that a disjoint band of frequencies exist and foetal signal is concentrated in this band, and further that it can be represented conveniently as a set of wavelet coefficients. The algorithm has been applied to each stream of data obtained from...
When the driving road surface condition suddenly changes from dry to wet, the driving wheels will slip due to much lower coefficient of friction, and thus cause the vehicle to skid. Unlike the popular anti-brake system which applies differential braking to wheels, the presented ant-skid Control properly distributes torques to wheels without braking. In comparison with many recently developed an...
Abstract: The decentralized robust servomechanism problem, which is to design decentralized stabilizing controllers such that each decentralized output robustly tracks a given reference signal in the presence of certain disturbances, is considered for linear time-invariant time-delay systems of neutral type with discrete delays. The reference signals and the disturbance are assumed to satisfy a...
In the presence of narrowband interference (NBI), the performance of the direct-sequence code-division multiple access communication system can be improved by using various interference cancellation schemes. In this paper, a scheme of parallel interference cancellers (PICs), which includes a set of NBI cancellation filters and a set of multiple access interference (MAI) cancellation filters, is...
We present a new method for adaptive surface meshing and triangulation which controls the local level–of–detail of the surface approximation by local spectral estimates. These estimates are determined by a wavelet representation of the surface data. The basic idea is to decompose the initial data set by means of an orthogonal or semi–orthogonal tensor product wavelet transform (WT) and to analy...
We describe a rapid, sensitive, and precise radioimmunoassay for urinary albumin (Ualb). Aliquots of diluted urine were incubated at room temperature for 1 h with 1251.. labeled albumin and a rabbit antiserum monospecific for human albumin. Phase separation was effected by the double-antibody tethnique. The dose-response curve was linear in the range of 15.6-10 000 ng, equivalent to 4 to 3000 m...
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