Using polychromatic synchrotron radiation, high-rate X-ray diffraction has been performed in-situ during dynamic tensile loading. Strain rates of 1000/s and 5000/s have been achieved with a miniature tension Kolsky bar for superelastic NiTi and 1100-O series aluminum, respectively. Via altering the ICCD exposure time, single pulse and 22-pulse diffraction has been performed thus resulting in te...

TITANIUM is a low-density element (approximately 60% of the density of steel and superalloys) that can be strengthened greatly by alloying and deformation processing. (Characteristic properties of elemental titanium are given in Table 2.1.) Titanium is nonmagnetic and has good heat-transfer properties. Its coefficient of thermal expansion is somewhat lower than that of steel and less than half ...

Aluminum and gallium doped zinc oxide thin films with negative dielectric permittivity in the near infrared spectral range are grown by pulsed laser deposition. Composite ceramics comprising ZnO and secondary phase Al2O3 or Ga2O3 are employed as targets for laser ablation. Films deposited on glass from dense and small-grained ceramic targets show optical transmission larger than 70 % in the vis...

It has been shown recently that III–V nitrides serve as a good host for rare earth elements and have many potential applications in optical communications. Most work in rare earth implanted III-nitride materials so far has been focused on GaN, while AlGaN alloys should have advantages over GaN due to wider energy band gap. In this work, photoluminescence (PL) spectroscopy was used to investigat...

BACKGROUND Radioactive iodine is commonly administered following thyroidectomy for differentiated thyroid carcinoma to ablate the thyroid remnant. The optimal administered activity of radioiodine is unknown. METHODOLOGY/PRINCIPAL FINDINGS Adult subjects (n = 160) diagnosed with papillary or follicular thyroid carcinoma were randomly allocated to receive either 1100 MBq (30 mCi) or 3700 MBq (1...

PURPOSE Docosahexaenoic acid (DHA)-paclitaxel, a novel conjugate formed by covalently linking the natural fatty acid DHA to paclitaxel, was designed as a prodrug targeting intratumoral activation. This Phase I trial examined its toxicity and pharmacokinetics (PKs). EXPERIMENTAL DESIGN Patients with advanced refractory solid tumors received a 2-h i.v. infusion of DHA-paclitaxel every 3 weeks. ...

5'-Chloro-5-dodecyl-2,4,2'-trihydroxyazobenzene (CDTA) impregnated XAD-4 resin (CDTA resin) was prepared, and applied to the preconcentration of trace aluminum from environmental water samples with satisfactory results. Aluminum was measured by flow-injection analysis (FIA) with fluorescence detection by using lumogallion after the preconcentration of aluminum with CDTA resin. Fe3+ and other co...

Aluminum is ubiquitous; the third most common element of the earth's crust. It is naturally released to the environment from the weathering of rocks and volcanic activity. Human activities such as mining also result in the release of aluminum to the environment. Aluminum levels in environmental media vary widely depending upon the location and sampling site. In general, background levels of alu...

Chinese fir is a tall, fast-growing species that is unique to southern China. In Chinese fir plantations, successive plantings have led to a decline in soil fertility, and aluminum toxicity is thought to be one of the main reasons for this decline. In this study, Non-invasive Micro-test Technology was used to study the effect of aluminum stress on the absorption of 4 different ions in the roots...

Although aluminum excess is an apparent pathogenetic factor underlying osteomalacia in dialysis-treated patients with chronic renal failure, the mechanism by which aluminum impairs bone mineralization is unclear. However, the observation that aluminum is present at osteoid-bone interfaces in bone biopsies of affected patients suggests that its presence at calcification fronts disturbs the cellu...