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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 69 for “"conversion rate"”.
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The accelerated approval process in oncology : an examination of the conversion rate of approved therapies to full approval
In 1992, Accelerated Approval, or Subpart H approval, was added to the NDA regulations so promising products that provide a meaningful therapeutic benefit for serious or life-threatening diseases could be introduced to the market sooner, particularly for diseases or conditions where there was a …
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Surgical Outcomes of Laparoscopic Cholecystectomy for Severe Acute Cholecystitis
… acute and chronic cholecystitis (Group 3). The conversion rate was 2.7% (1/37) in group 1, 6.5% (4/62) in group 2, and 1.7% (1/59) in group 3. In groups 1 and 2, the postoperative stay and operative time were longer than those in group 3 with significant difference, respectively (P<0.05). In …
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High-Speed, Low-Spurious CMOS Analog -to -Digital Converter
… chip was measured to exhibit 40 Msamples/s conversion rate with 13-bit resolution, consuming 800 mW at 5 V.
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Development and investigation of an ammonia synthesis reactor
… The second theoretical system is a new integrated energy system for power, steam and ammonia production developed, simulated through Aspen Plus and assessed thermodynamically through energy and exergy approaches. The present system employs a novel ammonia production loop to potentially …
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Dissociation of carbon dioxide in atmospheric pressure microchannel plasma devices
… at atmospheric pressure was successfully demonstrated in microchannel plasma devices at breakdown voltages lower than 1 kVRMS. Optical emissions of molecular and ionic fragments of carbon dioxide were observed in emission spectra of visible wavelength range measured through a transparent …
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Heterogeneous oxidation of alcohols
… a 500ml stirred tank reactor. The fast reaction rate drops dramatically from 0.23 M/hr to 0.006 M/hr after 15 minutes reaction time when heptane was used as solvent. Different possible causes such as overoxidation, leaching and poisoning were examined. It was found that the loss of high …
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The origin and properties of pro-oncogenic fields in the intestinal epithelium
… progenitors carrying KrasG12D mutations demonstrated that KrasG12D expression does not change cell fate choices in homeostasis but appears to increase Atoh1+ stem cell contribution in the small intestine after Lgr5 depletion. In addition, Atoh1 derived KrasG12D stem cells have a competitive bias …
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Study of Adsorbate Interactions of Alumina Surfaces Using Nuclear Magnetic Resonance Methods
… analysis of methanol was performed via deuterated variants (CD3OH, CH3OD), with the molecular motion of the hydroxyl and aliphatic functional group differentiated. Tortuosity analysis of the steamed and calcined catalysts was used to determine the mass transport properties of the pretreated …
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Desarrollo de identidad de marca, diseño de producto y piezas comunicacionales para PIXMAP
… communication pillars and the execution of the strategic plan on Instagram, with the aim of increasing brand awareness during its pre-market launch stage. The derived results demonstrate a reach of 1,900 impressions of the product in the iOS App Store, 213 downloads, a conversion rate of 5% and a …
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Estimating Target Vessel Location on Robot-Assisted CABG using Feature-based CT to US Registration
… the surgeon’s experience and expertise, and the conversion rate to full sternotomy is in the order of 15%—25%. One of the reasons for conversion is poor pre-operative planning, which is based solely on pre-operative computed tomography (CT) images. This thesis proposes a technique to estimate the …
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ΜΕΘΟΔΟΙ ΜΕΤΑΤΡΟΠΩΝ ΚΩΔΙΚΑ ΔΙΑΜΟΡΦΩΣΗΣ ΔΕΛΤΑ ΓΙΑ ΤΗ ΒΕΛΤΙΩΣΗ ΚΑΙ ΑΠΛΟΥΣΤΕΥΣΗ ΤΗΣΕΠΕΞΕΡΓΑΣΙΑΣ ΣΗΜΑΤΩΝ
CONVERSION RATE AND CONVERSION CODE METHODS FOR DELTA MODULATED (DM) SEQUENCESARE PROPOSED IN THIS THESIS. WITH THE RATE CONVERSION METHOD A LINEAR DM (LDM) SEQUENCE CAN BE PROCESSED BY A DM SEQUENCES FILTER CLOCKED AT A HIGHER RATE THAN THAT OF THE INPUT SEQUENCE. THE FILTER OUTPUT IS A LDM …
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Preparation, characterization and carrier gas transport characteristics of inorganic and organic membranes for application in lactic acid esterification with ethanol.
… 0.30 bar. Helium gas with the highest permeation rate were identified as the suitable carrier gas for the analysis of esterification product with GC-MS. The esterification reaction in the presence of four cation-exchange resins to produce ethyl lactate was carried out between 60-160 oC in a batch …
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Conversion kinetics of oxyfluoride-derived YBCO films
… (5000 Y20 3, 500 Ce02) Ni-single crystal substrates by metal organic deposition (MOD) process. Glassy films were converted to epitaxial YBCO films, by heating in wet atmosphere of N2/02 mixture. A novel technique was used to determine the rate of conversion of films from glassy state to …
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Internal tide generation by tall ocean ridges
… tides are internal waves of tidal period generated by tidal currents flowing over submarine topography. Tall ridges that are nominally two-dimensional (2-D) are sites of particularly strong generation. The subsequent dissipation of internal tides contributes to ocean mixing, thereby playing an …
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An examination of the perceived factors of internship programs that lead students to remain with an organization after completing an internship
… from academia to the world of work. As illustrated by the elevated number of college graduates reporting an internship experience upon graduation, internships are becoming a high-impact practice within the collegiate experience. Identified as a gateway to recruitment and hiring by …
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Comparison of Water Quality, Rainbow Trout Production, and Economics in Oxygenated and Aerated Raceways
… (9.5 and 2.75 mg/L, respectively) compared to aerated raceways (7.4 and 0.57 mg/L). Total settleable solids loads were significantly greater (P < 0.001) in aerated raceways (10.3 g/L/day) than in oxygenated raceways (8.8 g/L/day). Dissolved nitrogen (%), total gas pressure, and other water …
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The Development of a Metal Plate Test Reactor for Studying Reaction Kinetics on Catalytically Coated Heat Transfer Components
… operation. A series of thermocouples was incorporated into the reactor to measure the temperature profile along the reactor. Performance of the reactor was verified using a well characterized commercially available Cu/Zn/Al2O3 catalyst from BASF. The goal of this experimentation was to determine …
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Applying ancestry tracts to human genetics: disentangling admixture history and characterizing gene conversion
… demography and inferring non-crossover gene-conversion from admixture tracts. First, I present PAPI (Parental Admixture Proportion Inference), a Bayesian tool for inferring admixture proportions and admixture times from the un-genotyped parents of an admixed sample. PAPI's components are a …
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Calibration of sampling clock skew in high-speed, high-resolution time-interleaved ADCs
… ADCs. In order to raise the sampling rates of ADCs in a power efficient manner, time-interleaving is an essential technique, whereby N ADC channels, each operating at a sampling frequency of fs, are used to achieve an effective conversion rate of N - fs. While time-interleaving enables …
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