Results 121 to 130 of about 84,721 (308)

Total and Bioavailable Chromium Along a Toposequence in San Luis Obispo, CA.

, 2006
The presence of large quantities of Chromium metal in soil and plants is of major concern due to its toxicity to humans. Total (USEPA 3050a) and bioavailable (USEPA 1311) levels of chromium were measured along a serpentinic Central Coast toposequence ...
Harris, Britani, Grandi-Hill, Scott, Wagoner, Michael, Appel, Christopher, Stubler, Craig, Ross, Arwen, Corkins, Lauren, Tappero, Ryan, Clamor, Byron, Levicki, Walter, Alvarado, Maribel, Carr, Katharine   +11 more
core   +1 more source

Total phenolic, chromium contents and antioxidant activity of raw and processed sugars

, 2016
Processing improves the visual quality of food; however, the ingredient and nutritional values may alter. In present study, the sugar samples (refined, raw, gur (Jaggery/jaggeree) and molasses) were collected from 20 different agro-climatic regions of ...
Keshavarzi, Ali, Qureshi, Naseem, Afzal Qamar, M., Masood, Nasir, Nazir, Arif, Nasir Masood, Abbas, Mazhar, Fida Hussain, Iqbal, Munawar, Bokhari, Tanveer H., Naseem Qureshi, Arif Nazir, Tanveer H. Bokhari, Ali Keshavarzi, M. Afzal Qamar, Hussain, Fida, Munawar Iqbal, Mazhar Abbas   +17 more
core   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

Advanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat, D. Anjaria, I. Woo, C. Bean, D. Texier, J. C. Stinville   +5 more
wiley   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Summary of Total Chromium Emission Estimates (t) to water by Province from 2005 to 2009.

, 2014
Summary of Total Chromium Emission Estimates (t) to water by Province from 2005 to 2009.
Chunye Lin (520475), Lu Lu (392), Hongguang Cheng (520473), Tan Zhou (520474), Qian Li (114642)   +4 more
core   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Possible Association between Nickel and Chromium and Oral Cancer: A Case-control Study in Central Taiwan

, 2012
[[abstract]]Oral cancer is one of the most common cancers in Taiwan. Changhua County, in central Taiwan, has an extremely high prevalence of oral cancer, along with a high concentration of metal-related industries and soil metal contamination. The aim of
Yuan, Tzu-Hsuen; Lian, Ie-Bin; Tsai, Kuo-Yang; Chang, Tsun-Kuo; Chiang, Chi-Ting; Su, Che-Chun; Hwang, Yaw-Huei
core  

Cobalt-chromium toxicity following revision of total hip replacement

Saudi Medical Journal
Systemic cobalt-chromium (Co-Cr) toxicity following a total hip replacement is a rare complication that may sometimes lead to fatal consequences. We report a case of a 64-year-old woman, who presented with Co-Cr toxicity after revision of fractured ceramic components with metal-on-polyethylene.
Ramy Samargandi, Louis-Romée Le Nail, Bandar Hetaimish, Maxime Saad   +3 more
openaire   +2 more sources

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source