Results 81 to 90 of about 69,795 (304)

A rapid cosmic-ray increase in BC 3372-3371 from ancient buried tree rings in China [PDF]

open access: yes, 2017
Cosmic rays interact with the Earth's atmosphere to produce $^{14}$C, which can be absorbed by trees. Therefore, rapid increases of $^{14}$C in tree rings can be used to probe previous cosmic-ray events.
Cheng, K. S.   +4 more
core   +3 more sources

Reactive Laser Additive Manufacturing of Hierarchically Structured Aerogels

open access: yesAdvanced Materials, EarlyView.
Reactive laser additive manufacturing transforms printing into a chemically active synthesis step. Salt‐enabled transient reaction environments drive in situ formation of hierarchically structured graphitic aerogels with microtubular and nanoscale features in seconds.
Shuichiro Hayashi   +6 more
wiley   +1 more source

Changes of Soil Organic Carbon Stabilization and Stock in Yancheng Huang-Bohai Sea Migratory Bird Habitat Coastal Marsh Wetland with a Long-term Follow-up Study

open access: yesBioResources
In the important coastal marsh wetland ecosystem, the soil organic carbon content is subject to multiple environmental factors in Yancheng. The research objectives were to explore the effects of sampling time, soil depth, and vegetation types on soil ...
Chaowei Yue   +6 more
doaj  

Utilization of Carbonized Wood from Tropical Fast-Growing Trees for Functional Materials

open access: yesJurnal Ilmu Kehutanan, 2012
Establishment of fast-growing tree species plantations in tropical areas generate wood biomass residue in which some of them are currently utilized for heating fuel and some others are used for charcoal production with limited purposes.
Joko Sulistyo   +2 more
doaj   +1 more source

Structure and electrochemical performance of electrospun-ordered porous carbon/graphene composite nanofibers

open access: yesBeilstein Journal of Nanotechnology, 2020
Ordered carbon/graphene composite nanofibers (CGCNFs) with different porous configurations were used as a material to fabricate supercapacitor electrodes.
Yi Wang   +3 more
doaj   +1 more source

Relevance of the composition of municipal plastic wastes for metallurgical coke production [PDF]

open access: yes, 2011
This study is concerned with the effects of the composition of mixed plastic wastes on the thermoplastic properties of coal, the generation of coking pressure and the quality of the resulting cokes in a movable wall oven at semipilot scale.
Alvarez, R.   +3 more
core   +1 more source

Engineered Heparinized GQDS/HPEI–Polyamide Membrane for Bilirubin Removal via One Step Anti Coagulation

open access: yesAdvanced Materials Interfaces, EarlyView.
A multifunctional heparinized polyamide membrane embedded with graphene quantum dots (GQDs) and hyperbranched polyethyleneimine (HPEI) is engineered for efficient bilirubin removal via a one‐step anticoagulation–adsorption process. The membrane demonstrates enhanced hemocompatibility, prolonged clotting times, and high bilirubin adsorption capacity ...
Abdur Rehman Mushtaq Ahmad   +6 more
wiley   +1 more source

Effects of Different Biochars on Cd Immobilization in Rice Paddy Soil: A Two-year Field Study

open access: yesBioResources
This study addressed the efficiency of different biochars in Cd immobilization in soil. An acidic sandy loam paddy contaminated with Cd was selected for the field trial, which was continued for three rice-growing seasons.
Haochuan Ge   +5 more
doaj  

Some peculiarities of burnt birch wood pyrolysis [PDF]

open access: yes, 2019
The results of thermal analysis of sound and burnt birch wood samples were compared. An attempt was made to establish a connection between the type of the TG, DTG and DSC curves and the mechanism of wood pyrolysis. The dependence of the exothermic effect
Khalimov, E., Shteba, T., Yuryev, Yu. L.
core  

Exploring the Potential of Zero‐Dimensional Carbon Nanomaterials in Photoluminescent, Electrochemiluminescent and Electrochemical Sensors

open access: yesAdvanced Materials Interfaces, EarlyView.
Zero‐dimensional carbon nanomaterials are presented as multifunctional platforms linking structure, property, and sensing performance. Surface engineering and heteroatom doping modulate electron‐transfer and luminescent behavior, enabling electrochemical, photoluminescent, and electrochemiluminescent detection. Fundamental design principles, analytical
Gustavo Martins   +8 more
wiley   +1 more source

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