Results 71 to 80 of about 5,247,609 (321)

Characterization of rice husk-based catalyst prepared via conventional and microwave carbonisation [PDF]

, 2017
© 2017 Elsevier Ltd. Carbon-based sulphonated catalysts (CBSCs) were made from rice husk for biodiesel production. The CBSCs were prepared by microwave (MW) and conventional heating processes from the same feedstock.
Adam, Adrian, Ahiduzzaman, Ataya, Binod, Budarin, Canilha, Chen, Chen, Chen, Dehkhoda, Fagerlund, Foo, Foo, Fu, Fu, Hara, Hara, Janaun, Jeon, Kang, Kaparaju, Lee, Li, Li, Li, Liu, Liu, Lou, Luduena, Macquarrie, Mao, Mašek, Otera, Peng, Qadri, Sadon Asi, Sani, Sani, Shanks, Soltani, Takagaki, Toda, Wang, Wu, Zali, Zhang, Zhu   +47 more
core   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

Responses of the Allium cepa L. to Heavy Metals from Contaminated Soil

Plants
Heavy metals can accumulate and migrate in soil environments and can negatively affect crops and consumers. Because an increased incidence of chronic diseases can be observed, food security has become a high-priority concern.
Ocsana Opriș, Ildiko Lung, Katalin Gméling, Adina Stegarescu, Noémi Buczkó, Otilia Culicov, Maria-Loredana Soran   +6 more
doaj   +1 more source

ELEMENTAL CONTENT AND LEAD-STRONTIUM ISOTOPE CHARACTERIZATION OF WINE

Studia Universitatis Babes-Bolyai Chemia, 2018
The ICP-MS technique was used to determine elemental composition (Pb, Sr, Cd, Ni, Co, Cu, Ni, Hg, As, Cr) of wines (Muscat Ottonel, Fetească Albă, Fetească Regală, Fetească Neagră, Merlot and Cabernet Sauvignon) produced during three consecutive years ...
Florin Dumitru BORA, Alina DONICI, Anamaria CĂLUGĂR, Peter Alpar SOMSAI, Doina CLAPA, Emese GÁL, Claudiu Ioan BUNEA, Adelina DUMITRAȘ   +7 more
doaj   +1 more source

Structure and Content Analysis of Raw Materials for Production of Trimanganese Tetraoxide Pigment

Crystals, 2021
The research aims to reveal the structure, phase, and elemental content of manganese ores from deposits—Bogach (Karaganda region, Kazakhstan) and Zhaksy (Akmola region, Kazakhstan).
Ruslan Z. Safarov, Jumat B. Kargin, Yelaman K. Aibuldinov, Assemgul K. Zhandildenova, Bolat B. Makhmutov, Alexandr K. Sviderskiy, Nikolai I. Vatin   +6 more
doaj   +1 more source

Supplemental macronutrients and microbial fermentation products improve the uptake and transport of foliar applied zinc in sunflower (Helianthus annuus L.) plants. Studies utilizing micro X-ray florescence. [PDF]

, 2014
Enhancing nutrient uptake and the subsequent elemental transport from the sites of application to sites of utilization is of great importance to the science and practical field application of foliar fertilizers.
Cliff eRamsier, Dandi eHou, Judith eJernstedt, Lingli eLu, Minzhe eZhang, Patrick eBrown, Ruohan eXie, Ruohan eXie, Shengke eTian, Shengke eTian   +9 more
core   +2 more sources

Design and Prototyping of Topology‐Optimized, Additively Manufactured Lightweight Components for Space Robotic Systems: A Case Study

Advanced Engineering Materials, EarlyView.
The results demonstrate a simulation‐driven workflow that applies LSB topology optimization with additive manufacturing constraints to mission‐specific load cases, integrating European Cooperation for Space Standardization compliant verification and manufacturability to develop structurally efficient rover suspension components.
Stelios K. Georgantzinos, Grigorios Kostopoulos, Eleni Papadopoulou, Stefanos Voulgaris, Alexandra Tseni, Panteleimon Bakalis, Maria N. Gkara, Chara Ch. Mitropoulou, Georgios Kazakis, Alin Munteanu, Jeremi Gancet, Nikos D. Lagaros   +11 more
wiley   +1 more source

Seasonal variation in marine C:N:P stoichiometry: can the composition of seston explain stable Redfield ratios? [PDF]

, 2011
Seston is suspended particulate organic matter, comprising a mixture of autotrophic, heterotrophic and detrital material. Despite variable proportions of these components, marine seston often exhibits relatively small deviations from the Redfield ratio ...
DO, Hessen, Helene, Frigstad, LJ, Naustvoll, RGJ, Bellerby, TM, Johnsen, Tom, Andersen   +5 more
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Descendants of the first stars: the distinct chemical signature of second generation stars [PDF]

, 2018
Extremely metal-poor (EMP) stars in the Milky Way (MW) allow us to infer the properties of their progenitors by comparing their chemical composition to the metal yields of the first supernovae.
Frebel, Anna, Glover, Simon C. O., Griffen, Brendan, Gómez, Facundo A., Hartwig, Tilman, Ishigaki, Miho N., Ji, Alexander P., Klessen, Ralf S., Magg, Mattis, O'Shea, Brian W., Tominaga, Nozomu, Yoshida, Naoki   +11 more
core   +1 more source