نتایج جستجو برای: d time section
تعداد نتایج: 2487007 فیلتر نتایج به سال:
in exploration seismology, migration refers to a multi-channel processing step that attempts to spatially re-position events and improve focusing. before migration, seismic data is usually displayed with traces plotted at the surface location of the receivers and with a vertical time axis. this means that dipping reflections are systematically mispositioned in the lateral coordinate and the ver...
Background and Objectives: The correct management of delivery and anesthesia hs important for maternal and fetal health outcome during cesarean section. The aim of this study was to compare the effect os spinal anesthesia with bupivacaine and ropivacaine on the hemodynamic parameters of pregnant women during cesarean section. Methods: This study was a randomized double blinded clinical trial o...
We report a measurement of the exclusive e+e- -->D(*)+/-D*-/+ cross section as a function of center-of-mass energy near the D(*)+/-D*-/+ threshold with initial-state radiation. A partial reconstruction technique is used to increase the efficiency and to suppress background. The analysis is based on a data sample collected with the Belle detector with an integrated luminosity of 547.8 fb(-1).
Optimization approach to define geometry (parameters) of radial matching section in RFQ accelerator is suggested. This approach gives wider opportunities to design of radial matching section because it does not have certain prescribed laws of variation of focusing strength along the section. INTRODUCTION Acceptance at the entrance of RFQ accelerator, as it is known, depends on time and rotates ...
The present chapter addresses some issues on survey design and sample design for household budget surveys. The focus is on surveys in developing countries. Problems of measuring consumption and income are discussed in some detail in section B. Section C contains a discussion on some crucial sample design issues, for example, stratification, and sample allocation in space (geographical) and in t...
ABSTRACT Background: As any delay in the onset of milk production and ejection in the first few days after delivery can cause breast-feeding failure, this study has been done to determine factors that may affect the onset time of lactation in vaginal and cesarean section deliveries with and without labor pain (elective). Methods: 300 partUJient mothers selected from two private and university ...
A bstract The Born cross sections of the e + − → D *+ * and processes are measured using collision data collected with BESIII experiment at center-of-mass energies from 4.085 to 4.600 GeV, corresponding an integrated luminosity 15 . 7 fb 1 results consistent more precise than previous measurements by Belle, Babar CLEO collaborations. essential for understanding nature vector charmonium charmoni...
Capture and total cross section measurements for 94,95,96 Mo have been performed at the neutron time-of-flight facilities, n_TOF CERN GELINA JRC-Geel. The were using isotopically enriched samples with an enrichment above 95% each of isotopes. capture C 6 D detectors a new sTED detector. transmission 10 m station Li glass Preliminary results these are presented.
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