Now showing items 19895-19914 of 57425

(1859)

• #### HYDRILLA VERTICILLATA ROYLE: I. CONTROL THROUGH LIFE CYCLE INTERRUPTION. II. USE IN AQUATIC PHYTOTOXICITY BIOASSAYS ﻿

(1982)
Hydrilla (Hydrilla verticillata Royle) is an exotic aquatic angiosperm which has become a problematic weed throughout the southern United States. Infestation by aquatic weeds like hydrilla increase loss of valuable water ...

(1979-10)
• #### Hydrodynamic and molecular dependence of neutrophil-neutrophil adhesion ﻿

(1998)
Homotypic adhesion of neutrophils stimulated with chemoattractant is analogous to capture on vascular endothelium in that both processes depend on L-selectin and $\beta\sb2$-integrin adhesion receptors. Under hydrodynamic ...
• #### Hydrodynamic drag force in liquids ﻿

(1960)
A number of spheres of different radii and masses have been dropped in liquid helium I and II, liquid air, ethyl acetate, and water. The terminal velocity of each sphere falling in the confined liquid was measured. When ...

(1971)
• #### Hydrodynamic mechanisms of cell damage in microcarrier bioreactors ﻿

(1988)
A stirred microcarrier bioreactor contains a variety of local fluid dynamic environments, including isotropic turbulence, boundary layers, and vortices trailing from the impeller blades, all of which are superimposed on a ...
• #### Hydrodynamic Modeling of Heating Processes in Solar Flares ﻿

(2014-10-09)
This thesis examines the heating of the solar atmosphere due to energy release in solar flares. A one-dimensional hydrodynamic model, which solves the equations of conservation of mass, momentum, and energy along a magnetic ...

(1977)
• #### Hydrodynamics of porous flocs in aggregation and sedimentation ﻿

(2000)
Contaminants in aquatic systems tend to associate with particles and colloidal material and their impact on the environment is dependent on the nature and behavior of these carrier particles. This study investigates the ...
• #### Hydrogel-Based 3D Model of Patient-Derived Prostate Xenograft Tumors Suitable for Drug Screening ﻿

(2014)
The lack of effective therapies for bone metastatic prostate cancer (PCa) underscores the need for accurate models of the disease to enable the discovery of new therapeutic targets and to test drug sensitivities of individual ...
• #### A hydrogel-based tumor model for the evaluation of nanoparticle-based cancer therapeutics ﻿

(2014)
Three-dimensional (3D) tissue-engineered tumor models have the potential to bridge the gap between monolayer cultures and patient-derived xenografts for the testing of nanoparticle (NP)-based cancer therapeutics. In this ...
• #### Hydrogen chemisorption on transition metal clusters ﻿

(1991)
Positively charged clusters of V, Nb, Ta, Co, Rh, Ir, and Ni in the size range of 3-26 atoms were generated by laser vaporization in a supersonic nozzle and injected into the ion trap of a Fourier transform ion cyclotron ...
• #### Hydrogen Diffusion and Stabilization in Single-Crystal VO2 Micro/Nanobeams by Direct Atomic Hydrogenation ﻿

(2014)
We report measurements of the diffusion of atomic hydrogen in single crystalline VO2 micro/nanobeams by direct exposure to atomic hydrogen, without catalyst. The atomic hydrogen is generated by a hot filament, and the ...
• #### HYDROGEN DIFFUSIVITY IN NOBLE METALS AT LOW TEMPERATURES (ELECTROCHEMICAL) ﻿

(1985)
An electrochemical technique has been used to measure the diffusivity of hydrogen in high purity noble metals (Ag, Au, Cu, Pd and Pt) in the well-annealed state at low temperatures (283-323K). The data obtained have been ...