Now showing items 10656-10675 of 64514

• #### Comparative evaluation of alternate flow configurations of three fluid, cross flow, heat exchangers ﻿

(1968)
The performance characteristics of two specific three fluid, cross flow, heat exchanger configurations have been determined; and then evaluated comparatively with other conceivable arrangements previously analyzed. Results ...
• #### Comparative Genomics of Cephalochordates ﻿

(2015-04-23)
Cephalochordates, commonly known as lancelets or amphioxus, represent an ancient chordate lineage falling at the boundary between invertebrates and vertebrates. They are considered the best living proxy for the common ...

(1956)
• #### Comparative morphology of orthoclase crystals ﻿

(1965)
Crystal populations of three small intrusive igneous bodies were sampled and parameters of the volume of the crystals and the areas of the accessory faces of the crystals were determined and measured. These data were ...
• #### Comparative studies of negative ion formation in Rydberg atom collisions with attaching and polar targets ﻿

(2004)
Low-energy electron transfer in collisions between a Rydberg atom and a target molecule can result in the formation of negative ions. Depending as to the properties of the target molecule the electron may be bound in a ...
• #### A comparative study of multiple accessing schemes ﻿

(1997-11-20)
We compare the performance of different accessing schemes (frequency division, time division and code division) for the uplink in a wireless communication system. We assume an additive white Gaussian noise channel with ...
• #### Comparative Study of the Condensing Effects of Ergosterol and Cholesterol ﻿

(2016)
Cholesterol, due to its condensing effect, is considered an important regulator of membrane thickness. Other sterols, due to their structural similarities to cholesterol, are often assumed to have a universal effect on ...
• #### A Comparative Study on Japanese and Chinese NMCs: A Semantic and Discourse Approach ﻿

(2012-05-21)
• #### Comparing and Combining Read Miss Clustering and Software Prefetching ﻿

(2001-09-20)
None
• #### Comparing vector-based and ACT-R memory models using large-scale datasets: User-customized hashtag and tag prediction on Twitter and StackOverflow ﻿

(2014-12-02)
The growth of social media and user-created content on online sites provides unique opportunities to study models of declarative memory. The tasks of choosing a hashtag for a tweet and tagging a post on StackOverflow were ...
• #### Comparison of analytical and numerical biodegradation models with application to aquifer remediation ﻿

(1989)
Contaminant transport in ground water is predicted through the use of analytical and numerical models. The horizontal plane source analytical code (HPS) was compared to the USGS solute transport numerical code (MOC) for ...
• #### Comparison of clusters with and without detectable Wolf-Rayet stars in starburst galaxies using optical, near-infrared imagery and spectroscopy ﻿

(2003)
This optical, near-infrared observational study compares the properties of clusters with and without Wolf-Rayet (W-R) stars in starburst galaxies. Previous studies looked only at the galactic properties. Because this work ...

(1966)
• #### Comparison of estimates of airmass aging using particle and other measurements near Fort Worth, TX ﻿

(2013-06-05)
The composition, concentration, and size of submicron aerosols were measured with a time resolution of five minutes by an Aerodyne high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) at a rural location ...
• #### Comparison of Full Wavefield Synthetics with Frequency-Dependent Traveltimes Calculated Using Wavelength-Dependent Velocity Smoothing ﻿

(2017)
Ray theory-based traveltime calculation that assumes infinitely high frequency wave propagation is likely to be invalid in the near-surface (upper tens of meters) due to the relatively large seismic wavelength compared ...
• #### Comparison of gradient-restoration algorithms for optimal control problems with nondifferential constraints and general boundary conditions ﻿

(1994)
The problem considered here involves a functional I subject to differential constraints, nondifferential constraints, and general boundary conditions. It consists of finding the state x(t), control u(t), and parameter $\pi$ ...
• #### Comparison of Guidance Methods for Autonomous Planetary Lander ﻿

(2011)
Guidance methods for a powered descent planetary lander are examined. Several guidance laws are developed and analyzed including Apollo derived, modified Apollo, time efficient and fuel efficient methods. These laws are ...
• #### A Comparison of High Order Interpolation Nodes for the Pyramid ﻿

(2015)
The use of pyramid elements is crucial to the construction of efficient hex-dominant meshes [M. Bergot, G. Cohen, and M. Duruflé, J. Sci. Comput., 42 (2010), pp. 345--381]. For conforming nodal finite element methods with ...
• #### Comparison of laser-produced plasma target materials for pumping the 109 nm xenon(2+) Auger laser ﻿

(1995)
Short wavelength lasers have many potential applications in scientific and engineering fields. The goal of this research was to improve the output energy of the Xe$\sp{2+}$ 109 nm laser. We compared cadmium, copper, gold, ...
• #### Comparison of Measured and Calculated Antenna Patterns for the Islote Heater ﻿

(1982)
This report presents the comparison between calculated and measured values of the radiation pattern produced by the antenna array of the Arecibo HF heating facility, located 17 km and 32.6° NE of the Arecibo Observatory ...