Results 101 to 110 of about 593,292 (282)

Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides

Chemie Ingenieur Technik, EarlyView.
Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel, Lucas Thumeyer, Ebbe H. Hartz, Håvard Hallås Stubseid, Peter Fröhlich, Martin Bertau   +5 more
wiley   +1 more source

Significance of classic Maya ceramic vessels in feasting

, 2009
Within the past few years, many Maya archaeologists have addressed the significance of feasting in ancient Maya society and the way in which this ritual can be identified through the use of special ceramic vessels.
Skinner, Jaclyn
core  

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel, Karen Valencia García, Tania‐Ariadna García‐Mejía, Agileo Hernández‐Gordillo, Rosa‐María Ramírez‐Zamora   +4 more
wiley   +1 more source

SELECTED METHODS OF MAKING THREE-DIMENSIONAL VIRTUAL MODELS OF MUSEUM CERAMIC OBJECTS [PDF]

Applied Computer Science, 2015
The paper presents available three-dimensional scanning technologies with a particular focus on the digitisation process of ceramic objects. Of the re-search carried out show that in digitising ceramic objects with concave ornamentation by the Roland ...
Jerzy MONTUSIEWICZ, Zbigniew CZYŻ, Rahim KAYUMOV   +2 more
doaj  

Orthodentine‐osteodentine and osteocytic‐anosteocytic transition inferred from Silurian stem chondrichthyan dermal jawbones with ever‐white teeth overgrown by brown denticles

Developmental Dynamics, EarlyView.
Abstract Background The dentigerous jawbones of a 423‐million‐year‐old stem chondrichthyan (ischnacanthid acanthodian) carry a characteristic combination of multi‐row non‐shedding white teeth with brownish overgrowing denticles. The color distinction makes it a good model for observing the interaction between two odontode lineages, but the nature of ...
Jia‐Cih Kang, Henning Blom, Tiiu Märss, Donglei Chen   +3 more
wiley   +1 more source

Synergistic Integration of Electronic Structure Modulating and Hierarchical Mass Transport Channels in Wood‐Derived Electrocatalysts for Efficient Oxygen Evolution

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
By combining electronic structure modulation and hierarchical channel construction, a wood‐derived Cr‐Co2P@PNC/PCW electrocatalyst is developed. This multicomponent synergistic modulation strategy significantly improves the efficiency of OER. Designing synergistic regulation strategies is widely recognized as an effective approach to enhancing ...
Zihan Zhang, Weizhe Yuan, Sha Chen, Cheng Zhou, Xinmin Zhang, Xiaowei Wang, Han Xu, Yan Qing, Yiqiang Wu   +8 more
wiley   +1 more source

Гробни находки от римския период във фонда на Исторически музей – Нова Загора

Българско е-Списание за Археология
The article presents and analyses artefacts from the collection of the Historical Museum – Nova Zagora. The location of the finds is well-documented, and in most cases, there is information about the context of their discovery.
Veselin Ignatov
doaj  

Smart Functional Hydrogels: Emerging Platforms for Thermal and Electrochemical Energy Harvesting and Conversion Systems

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The hydrogel exhibits versatile functions, including efficient thermogalvanic conversion under a temperature difference, and acting as a cooling layer/forming a thermally conductive nanoactive composite for thermovoltaic conversion. Additionally, its self‐healing and self‐powered flexibility play a key role in energy storage systems. The growing demand 
Eunah Kang
wiley   +1 more source

Contribution to the study of spinning bowls: examples from Early Iron Age Thrace

Българско е-Списание за Археология
The identification of a specific group of ceramic and stone vessels with a handle on the interior, known in the literature as spinning bowls, has become possible due to the detailed Egyptian wall paintings and wooden models presenting different stages ...
Nataliya Ivanova
doaj   +3 more sources

Hydrogen Production With Water Electrolysis Technologies: Advances, Performance, and Potential Use for Low‐Gradient Combustion

Energy Science &Engineering, EarlyView.
This review links recent advances in water electrolysis with hydrogen utilization in low‐gradient combustion systems. While hydrogen eliminates direct CO2 emissions, its environmental and economic benefits depend strongly on production pathways, system‐level efficiency, and NOx mitigation through MILD/FLOX/HiTAC combustion.
Rafał Buczyński, Przemysław Draga
wiley   +1 more source