Results 111 to 120 of about 911,678 (332)

Thermometric Based‐Microswimmers with Chemical and Optical Engines

open access: yesAdvanced Intelligent Systems, EarlyView.
Temperature sensing at small scales is typically performed using passive luminescent particles. Here, an alternative approach is demonstrated by integrating upconversion thermometry into self‐propelled microswimmers powered by chemical fuels or light. This strategy offers a step toward dynamic thermal sensing at the microscale, relevant to both lab‐on ...
João M. Gonçalves, Katherine Villa
wiley   +1 more source

The role of high- and low-temperature ocean crust alteration for the marine calcium budget [PDF]

open access: yes, 2007
Calcium (Ca) is a key element for the understanding of the chemical evolution of the ocean and for the global climate on long geological time scales.
Amini, Marghaleray
core  

Hydrothermal Alteration on Composite Volcanoes: Mineralogy, Hyperspectral Imaging, and Aeromagnetic Study of Mt Ruapehu, New Zealand

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Prolonged volcanic activity can induce surface weathering and hydrothermal alteration that is a primary control on edifice instability, posing a complex hazard with its challenges to accurately forecast and mitigate.
Gabor Kereszturi   +3 more
doaj   +1 more source

Hydrothermal activity lowers trophic diversity in Antarctic sedimented hydrothermal vents [PDF]

open access: yes, 2016
Sedimented hydrothermal vents are those in which hydrothermal fluid vents through sediment and are among the least studied deep-sea ecosystems. We present a combination of microbial and biochemical data to assess trophodynamics between and within ...
Bell, James B.   +6 more
core   +1 more source

Green Synthesis of Silver Nanoparticles: A Review of Polymer and Antimicrobial Drug Combinations for Enhanced Antimicrobial Applications

open access: yesAdvanced NanoBiomed Research, EarlyView.
Silver nanoparticles (AgNPs) synthesized using eco‐friendly green synthesis approaches exhibit remarkable antimicrobial activity and enhanced drug delivery potential. Polymer‐AgNPs conjugates further improve drug stability and targeted delivery, offering a multifunctional platform for biomedical applications.
Mukil Madhusudanan   +6 more
wiley   +1 more source

Cascadia Hydrothermal Circulation IN Oceanic Crust

open access: yes, 2022
Clara Stanbury   +3 more
semanticscholar   +1 more source

Baseline Characteristics of Pristine Agricultural Pods Biochar

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The valorization of agricultural pod wastes into biochar offers a sustainable pathway for waste management and the development of functional carbonaceous materials. This study comparatively evaluates biochars produced from cocoa, flamboyant, and locust bean pods using an autothermal top‐lit updraft gasifier with retort heating, a system ...
Bolaji Ibrahim Busari   +8 more
wiley   +1 more source

Plate motions recorded in tectonostratigraphic terranes of the Franciscan Complex and evolution of the Mendocino triple junction, northwestern California [PDF]

open access: yes, 1994
The Mendocino triple junction area of northern California is underlain by the Coastal belt of the Franciscan complex, flanked on the east by the Central and Eastern belts of the Franciscan Complex.
Frederiksen, NO   +4 more
core   +1 more source

Advances in second‐generation biofuel production from rice straw and barley straw

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract This review critically examines recent advances in the use of rice straw and barley straw as lignocellulosic feedstocks for second‐generation biofuel production. A comprehensive analysis of their chemical composition, including cellulose, hemicellulose, lignin, and ash content, reveals how these intrinsic properties affect the efficiency of ...
Tâmili Vitória Duarte de Souza   +3 more
wiley   +1 more source

Fluid transfer and vein thickness distribution in high and low temperature hydrothermal systems at shallow crustal level in southern Tuscany (Italy)

open access: yesAnnals of Geophysics, 2014
Geometric analysis of vein systems hosted in upper crustal rocks and developed in high and low temperature hydrothermal systems is presented. The high temperature hydrothermal system consists of tourmaline-rich veins hosted within the contact aureole of ...
Francesco Mazzarini   +6 more
doaj   +1 more source

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