| Chelating Polymers and Environmental Remediation |
Mar-2009 |
22 pages |
| Authors:
Nicole E Zander; DYNAMIC SCIENCE INC PHOENIX AZ
|
 | Although there are many approaches to clean up wastewater and soil contaminated with heavy metals and other industrial pollutants, remediation with chelating polymers is one of the most versatile and inexpensive methods. The polymer ligand's efficiency and selectivity for particular metal ions are two important parameters that can be controlled by ligand type, ligand density, solubility of the polymer, as well as operating pH. An overview of remediating polymers and ... |
|
| Epoxy Nano-Reinforced Composite Systems |
FEB 2008 |
20 pages |
| Authors:
Nicole E. Zander; DYNAMIC SCIENCE INC PHOENIX AZ
|
| Mechanical properties of epoxy nanocomposite systems were evaluated for nanoclay platelets, nanosilica spheres, and carbon nanotube fillers. The effect of surface modifiers, such as quaternary ammonium salts and epoxy groups, was examined. The Young's modulus and tensile strength for epoxy-clay systems are dependent on the chain length of the alkylammonium modifier. Longer chains allowed better intercalation and mechanical properties. For nanosilica composites, interparticle distance played a key role in the ... |
|
| Testing of Portable Fire Extinguishers for Motorboats |
OCT 1979 |
|
| Authors:
T. Lazzelle; E. Enserink; DYNAMIC SCIENCE INC PHOENIX AZ
|
 | A study has been made of the relative effectiveness of eleven small hand-portable fire extinguishers (using six different extinguishing agents) considered suitable for fighting fires or flammable liquids. The evaluation was based on the performance of the extinguishers on seven fire models and three fuels. The fire models were selected either because they were standard extinguisher tests or simulated possible conditions of hazards on small motorboats. The relative merit of ... |
|
| Analysis of Naval Aviation Head and Neck Injuries (1969-1978) |
MAY 1978 |
101 pages |
| Authors:
L. H. Tyndall; R. W. Carr; DYNAMIC SCIENCE INC PHOENIX AZ
|
| U.S. Naval aviation accidents during the period January 1969 to March 1978 were reviewed to study the nature and severity of injuries to the head and neck. Results, by aircraft models and types, were tabulated and analyzed to determine the number and types of injuries to the skull, face, eyes, neck, and cervical vertebra; this information was then used to determine the primary impact force direction. The role of the ... |
|
| The Design, Development, and Testing of an Aircrew Restraint System for Army Aircraft |
JUN 1972 |
250 pages |
| Authors:
Gregory Kourouklis; John J. Glancy; Stanley P. Desjardins; DYNAMIC SCIENCE INC PHOENIX AZ
|
| The purposes of this study were to design, test, and optimize an aircrew restraint system for a forward-facing, nonejection seat for Army aircraft based on the criteria contained in Chapter 4 of USAAMRDL Technical Report 71-122, 'Crash Survival Design Guide', October 1971, and to prepare a proposed draft Military Specification. A literature search was conducted to determine the state of the art in restraint system development and injury potential prediction ... |
|
Reports by Corporate Author
