In this paper the classification of pulse compression radar waveforms using features extracted from the Choi-Williams time-frequency distribution is studied. In addition, a feature based on the symmetry properties of polyphase waveforms is introduced. The pulse compression waveforms examined are the Frank, P1, P2, P3, and P4 codes. The discrimination capability of the features is evaluated usin...

We present numerical data of the height-height correlation function and of the avalanche size distribution for the three dimensional Toom interface. The height-height correlation function behaves samely as the interfacial fluctuation width, which diverges logarithmically with space and time for both unbiased and biased cases. The avalanche size defined by the number of changing sites caused by ...

OBJECTIVE To investigate the effect of preterm birth on risk factors for cardiovascular disease (CVD), independent of birth size. STUDY DESIGN Observational study using data of 406 healthy participants aged 18-24 years, from the PROgramming factors for Growth And Metabolism and Prematurity and Small for Gestational Age studies. Associations between gestational age (GA), systolic blood pressur...

Catalytic waves obtained from the perchloric acid-soluble fraction of serum in the presence of hexaminecobalt trichloride appear to conform to a Langmuir adsorption isotherm. Wave heights for sera from patients with untreated urological cancers significantly exceed those from normal subjects. In general, treatment with diethylstilbestrol decreased the wave height. Effects of some other chemothe...

In the present work, an adsorptive stripping voltammetric method using a hanging mercurydrop electrode (HMDE) was described in order to determine the ultra trace of thiosemicarbazidein different real samples. The method is based on accumulation of thiosemicarbazide on mercuryelectrode. The potential was scanned to the negative direction and the differential pulse strippingvoltammograms were rec...

a selective and sensitive method for determination of cadmium and zinc is presented. the method is based on adsorptive accumulation of the complexes of cd (ii) and zn (ii) ions with 4-amiono-5-methyl-2,4-dihydro-3h-1,2,4-triazol-3-tion (mmtt) onto hanging mercury drop electrode (hmde), followed by reduction of the adsorbed species by voltammetric scan using differential pulse modulation. the li...