Now showing items 15618-15637 of 59550

• #### Experimental Characterization of Plasma Detachment from Magnetic Nozzles ﻿

(2013-09-16)
Magnetic nozzles, like Laval nozzles, are observed in several natural systems and have application in areas such as electric propulsion and plasma processing. Plasma flowing through these nozzles is inherently tied to the ...
• #### Experimental demonstration of all-optical CDMA using bipolar codes ﻿

(1999)
Fiber optic networks capable of supporting a large pool of subscribers, many simultaneous users, and high data rates are receiving heightened interest as solutions to a growing communications need. The experiments reported ...
• #### Experimental demonstration of bipolar codes for direct detection multi-user optical communication ﻿

(1996-10-20)
We report the first experimental demonstration of a broadband spectral encoding and decoding technique using bipolar codes for optical code-division multiple access. The codeword correlations are verified and rejection of ...
• #### Experimental demonstration of wavelength shift keying in optical WDM networks ﻿

(2002)
Fiber optic networking has developed incredibly over the past a few years. It offers the promise to support large numbers of users simultaneously, to provide users with integrated services at high speed, and to increase ...
• #### Experimental determination of absolute partial cross-sections for the electron impact ionization of argon and nitrogen ﻿

(1994)
This thesis presents a description of a novel technique for the accurate experimental determination of absolute partial electron impact ionization cross sections of atoms and molecules by a calibrated time of flight mass ...
• #### Experimental determination of the air flow through the individual cylinders of an internal combustion engine ﻿

(1955)
The overheating of certain cylinders of multicylinder engines is of vital import to those concerned with large power installations. Such overheating results in a loss of power from the engine. Therefore, engines must be ...
• #### EXPERIMENTAL DISENGAGEMENT OF MORPHOGENETIC PROCESSES AND ITS EFFECTS ON PRIMORDIAL GERM CELL COLONIZATION OF THE GONADAL RIDGES IN RANA PIPIENS ﻿

(1986)
During normal embryogenesis in Rana pipiens the primordial germ cells (PGCs) undergo a displacement from deep within the ventral endoderm of the Stage 17 tailbud embryo to the dorsal endodermal crest of the hatched Stage ...
• #### Experimental evaluation of explicit and symbolic automata-theoretic algorithms ﻿

(2006)
The automata-theoretic approach to the problem of program verification requires efficient minimization and complementation of nondeterministic finite automata. This work presents a direct empirical comparison of well-known ...
• #### Experimental evidence of genome-wide impact of ecological selection during early stages of speciation-with-gene-flow ﻿

(2015)
Theory predicts that speciation-with-gene-flow is more likely when the consequences of selection for population divergence transitions from mainly direct effects of selection acting on individual genes to a collective ...
• #### Experimental evidence that both parties benefit in a facultative plant-spider mutualism ﻿

(2004-06)
Spiders are known to influence plant fitness, and vice versa. Yet, it has not been appreciated that these facultative relationships can be mutualistic. I examined the interaction between Phryganoporus candidus, a subsocial ...
• #### Experimental evolution of TetX2: Correlating changes in fitness to their structural and functional origins ﻿

(2012)
The study of protein evolution and adaptation resides at the junction between the disciplines of biological chemistry and evolutionary biology. We chose the B. thetaiotaomicron tetracycline resistant enzyme TetX2, as our ...
• #### Experimental Free Energy Landscape Reconstruction of DNA Unstacking Using Crooks Fluctuation Theorem ﻿

(2013-06-05)
Nonequilibrium work theorems, such as the Jarzynski equality and the Crooks fluctuation theorem, allow one to use nonequilibrium measurements to determine equilibrium free energies. For example, it has been demonstrated ...
• #### Experimental investigation and constitutive modeling of marine clay ﻿

(1993)
A new cross-anisotropic elasto-plastic constitutive model is developed based on experimental observations of marine clay from the Gulf of Mexico. Standard triaxial and torsional simple shear tests performed on the ...
• #### Experimental investigation for constitutive modeling of fine sand under cyclic loading using hollow cylinder specimens ﻿

(1991)
An experimental program for the understanding of the behavior of fine cohesionless soil under monotonic and cyclic loading and for the development and refinement of constitutive models has been undertaken. An experimental ...

(1978)
• #### Experimental investigation of crust-mantle hybridization in the Earth’s shallow upper mantle ﻿

(2014-11-13)
Chemical heterogeneities in the Earth’s mantle, such as subducted sediments and oceanic crust, along with volatiles such as H2O and CO2 affect melting processes, hence, chemical differentiation of the Earth and their ...

(1951-10)
• #### Experimental observation of incoherent-coherent crossover and orbital-dependent band renormalization in iron chalcogenide superconductors ﻿

(2015)
The level of electronic correlation has been one of the key questions in understanding the nature of superconductivity. Among the iron-based superconductors, the iron chalcogenide family exhibits the strongest electron ...
• #### Experimental observation of the photon structure function at 21 GeV ﻿

(1998)
The triggered photon structure function at center-of-mass energy 21 GeV is measured from the interaction $\gamma$p $\to$ jets. Descriptions of the experimental apparatuses are given and the physics goals of the experiment ...
• #### Experimental Realization of an Exact Solution to the Vlasov Equations for an Expanding Plasma ﻿

(2007-10-08)