Results 31 to 40 of about 74,994 (267)

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Influence mechanism of calcium on soil organic nitrogen mineralization during calcareous soil evolvement in karst areas

Carsologica Sinica
Nitrogen (N) is an essential nutrient element for the normal growth and development of plants, and the major factor affecting the primary productivity of most terrestrial ecosystems.
Yincai XIE, Hui YANG, Jun LI, Xiongyi MIAO, Lin YANG, Shucheng WU   +5 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Characteristics and influencing mechanisms of soil nitrous oxide (N2O) emissions from forestlands at different slope positions in karst regions

Carsologica Sinica
Greenhouse gases reflect long-wave infrared radiation from the Earth’s surface, causing the rise in global temperatures. Nitrous oxide (N2O) is one of the three major greenhouse gases, with a century-long warming potential 296 times greater than that of ...
Mingzhen YANG, Lin YANG, Lijun LIU, Dongni WEN, Jianhua CAO, Tongbin ZHU, Longfei YU, Liang LI, Jian LIANG, Danmei LU   +9 more
doaj   +1 more source

Effects of livestock grazing on soil nitrogen mineralization on Hulunber meadow steppe, China

Plant, Soil and Environment, 2016
Soil nitrogen (N) cycling is an important factor in terrestrial ecosystems, including grasslands. Understanding the effects of grazing on nitrogen cycling in grassland ecosystems is critical for better management and for improving knowledge of the ...
R. Yan, G. Yang, B. Chen, X. Wang, Y. Yan, X. Xin, L. Li, X. Zhu, K. Bai, Y. Rong, L. Hou   +10 more
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

The Influence of Microbial Agent on the Mineralization Rate of Steel Slag

Advances in Materials Science and Engineering, 2018
Bacteria-based mineralization is a new technique to use the steel slag. In this article, an experimental examination was performed to find out the steel slag advancement by the addition of the microbial agent that has the possibility to accelerate ...
Haihe Yi, Chun-xiang Qian
doaj   +1 more source

Natural Bone‐Derived Ceramic Scaffolds Functionalized with Chitosan‐Gold, Chitosan‐Magnesium, and Chitosan‐Zinc for Enhanced Antibacterial Activity

Advanced Engineering Materials, EarlyView.
This study reports the development of antibacterial ceramic scaffolds derived from natural bovine bone. The bones were processed through sequential boiling and hydrogen peroxide treatment to remove organic matter, producing porous, mineral‐rich scaffolds.
Mohamad Hassan Taherian, Anh Thi Le, Anh Thi Van Le, Dung My Thi Dang, Tin Chanh Duc Doan, Chien Mau Dang, Martin Bolduc   +6 more
wiley   +1 more source

DEGRADABILIDAD DE UN POLÍMERO DE ALMIDÓN DE YUCA DEGRADABILIDADE DE UM POLÍMERO DE AMIDO DE MANDIOCA DEGRADABILITY OF A TAPIOCA STARCH POLYMER

Revista EIA, 2009
El uso de materiales poliméricos se ha incrementado debido a sus buenas propiedades y bajo costo, como resultado, la cantidad de estos materiales que llega a los rellenos sanitarios ha aumentado hasta llegar hoy en día al 30 %.
Gladys Ruiz, Carolina Montoya, Marco Paniagua   +2 more
doaj  

Seasonal change in soil nitrogen mineralization in young Chamaecyparis obtusa stands at the upper and lower positions on a slope in central Japan

iForest - Biogeosciences and Forestry
Nitrogen (N) is a critical element for tree growth in forest ecosystems. As trees absorb inorganic N, the soil N mineralization process is a key process for their development. Although the spatial pattern of soil N mineralization is expected to relate to
Hosokawa N, Tajima S, Kobayashi H, Hirai K   +3 more
doaj   +1 more source