نتایج جستجو برای: tof
تعداد نتایج: 12111 فیلتر نتایج به سال:
Kurzfassung. Die Erfassung von Organoberflächen zur intraoperativen Registrierung spielt eine immer größere Rolle bei computergestützten Eingriffen. Während einige Techniken zur Organoberflächenerfassung (z.B. Laserscanning oder strukturiertes Licht) bereits zum Einsatz kamen, ist die Verwendung der neuartigen Time-of-Flight (ToF)Technologie noch nicht untersucht worden. Ziel dieser Studiewar d...
Measurements of time of flight (TOF) mobility of organic semiconductors become difficult when the mobility values are high, since the electronic signals overlap with the noise of the short part in drift time. Such noise of the short part in the drift time in the TOF method for measurements of carrier mobility was reduced by three methods: (1) longer distance (3.5 m) between sample and the N(2) ...
BACKGROUND To compare 3-dimensional gadolinium-enhanced elliptic centric-ordered (3D GEC) magnetic resonance venography (MRV) with traditional 2-dimensional time-of-flight (2D TOF) MRV for imaging of the intracranial venous system. METHODS Fifty-three patients underwent 2D and 3D MRV, whereby venous structures were evaluated by 2 neuroradiologists. RESULTS Of the 53 patients, 10 were diagno...
A combined apparatus of a supercritical CO2 extractor (SFE) and a time-of-flight mass spectrometer (TOF-MS) was developed aiming at the direct analysis of extracts. A fused-silica capillary acts as both a pressure restrictor and an effluent injection nozzle into the TOF-MS. The tip of the nozzle was narrowed by melting and abrasion so that a greater pressure drop occurred at the tip. In the TOF...
Analysis of the N-glycosylation pattern on antibodies is described using complementary mass spectrometric strategies based on both, top-down ESI-UHR-TOF and bottom-up LC-MALDI-TOF/TOF. Fast LC-ESI-UHR-TOF analysis, performed on the Bruker maXisTM, provides highresolution, high-mass accuracy (confident low ppm) data for both, intact antibodies and released antibody heavy chains allowing a rapid ...
BACKGROUND Acceleromyography is regularly used as an isolated test to detect residual paralysis. The performance of acceleromyography, however, has not been investigated for the setting where calibration is impossible. This study first evaluated the reliability of a single acceleromyographic train-of-four (TOF) ratio (T4/T1) to detect residual paralysis and compared it with tactile estimation o...
BACKGROUND Despite the early theoretical prediction of the 0+-0+ transition of 90Zr, 90Y-PET underwent only recently a growing interest for the development of imaging radioembolization of liver tumors. The aim of this work was to determine the minimum detectable activity (MDA) of 90Y by PET imaging and the impact of time-of-flight (TOF) reconstruction on detectability and quantitative accuracy ...
Tetralogy of Fallot (ToF) is the most common congenital heart defect which associated with systemic cyanosis. Pregnancy and delivery cause dramatic alterations in cardiovascular physiology pregnancy women unrepaired TOF may have a worsening right to left shunt an increase This possesses elevated risk maternal foetal morbidity even mortality. We report discuss case 24 years old Primigravida unco...
responses of plants to salinity stress and development of salt tolerance are extremely complex and various mechanisms appear to be involved. we employed a proteomic approach to study the mechanism of plant responses to salinity in a sensitive cultivar of barley (527 line). three-week-old seedlings were treated with 300 mm nacl for 3 weeks. total proteins of fourth leaf were extracted and separa...
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