Results 61 to 70 of about 85,326 (297)

A primordial origin for the atmospheric methane of Saturn's moon Titan [PDF]

open access: yes, 2009
The origin of Titan's atmospheric methane is a key issue for understanding the origin of the Saturnian satellite system. It has been proposed that serpentinization reactions in Titan's interior could lead to the formation of the observed methane ...
Alibert   +41 more
core   +4 more sources

High‐Performance Transparent, Deformable, and Recoverable Biomimetic Stevia–PVA Hydrogel Triboelectric Nanogenerator with Machine Learning‐Assisted Motion Recognition

open access: yesAdvanced Materials, EarlyView.
A transparent, deformable stevia–PVA hydrogel triboelectric nanogenerator delivers significantly enhanced mechanical strength and electrical output through biomimetic hydrogen‐bonded networks. Coupled with machine learning–assisted signal recognition, the self‐powered hydrogel enables accurate human‐motion sensing for intelligent wearable and IoT ...
Thien Trung Luu   +5 more
wiley   +1 more source

Geochemical study of ultramafic rocks from Latowu area of North Kolaka, Southeast Sulawesi and its implication for CO2 sequestration

open access: yesJournal of Degraded and Mining Lands Management, 2018
Geochemistry of ultramafic rocks in the Latowu Area of North Kolaka Regency, Southeast Sulawesi has been investigated with the aim at deciphering of mineral characteristics, chemical composition and their potential use as carbon dioxide storage ...
S Sufriadin   +4 more
doaj   +1 more source

Discussion on the Precision Evaluation Method of Serpentine Phase Quantitative Analysis by X-ray Diffraction

open access: yesYankuang ceshi, 2023
BACKGROUND Serpentine is an important group of minerals, widely used in the chemical and building industries, agriculture, metallurgy, environmental protection, and other fields.
ZHANG Mei   +3 more
doaj   +1 more source

Local adaptation of two cryptic species, Lasthenia californica and Lasthenia gracilis, to distinct regions within a serpentine outcrop [PDF]

open access: yes, 2013
Intraspecific variation providing tolerance to specific edaphic conditions may contribute to population differentiation, speciation, and species coexistence.
Barry, Teri
core   +1 more source

Understanding Operando Water Management in Hydroxide‐Exchange‐Membrane Fuel Cells

open access: yesAdvanced Materials Interfaces, EarlyView.
Effective water management is vital for high‐performance hydroxide‐exchange‐membrane fuel cells. Using a custom water‐flux station, this study quantifies how membrane thickness, microporous layers, and operating conditions dictate internal water transport.
Catherine M. Weiss   +4 more
wiley   +1 more source

Non‐Continuous Iridescent Variable Structural Color Based on Metallic Surface Periodic Structures

open access: yesAdvanced Materials Interfaces, EarlyView.
This study presents an ink‐free laser nanofabrication technique that generates periodic arched microstructures on titanium surfaces, achieving non‐continuous iridescent dual‐color switching. The ridge and side flanks of these structures possess distinct oxide film thicknesses, enabling angle‐dependent selective reflection of specific wavelengths.
XiangWei Liu   +3 more
wiley   +1 more source

Preliminary physicochemical evaluation of Kushta-e-Aahar Mohra: A unique formulation of Unani medicine

open access: yesAncient Science of Life, 2018
Introduction: Zahar Mohra (Serpentine/Bezoar stone) is mentioned as efficacious and a useful drug indicated in heart diseases in Unani medicine. It is also used to remove effect of poison and is termed in Unani Medicine as Daf-e-Zahar or Fad-e-Zahar ...
Mohd Akhtar Ali   +5 more
doaj   +1 more source

Symmetric serpentine marking on forest roads by internal circular curve method [PDF]

open access: yesGlasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2005
This paper presents a new method of symmetric serpentine marking in constructing forest roads on the terrain itself. This method is based on surveying the elements needed for symmetric serpentine marking on forest roads and on estimating other elements ...
Stefanović Bogdan Ž.
doaj   +1 more source

Taxonomy of \u3cem\u3eStreptanthus\u3c/em\u3e sect. \u3cem\u3eBiennes\u3c/em\u3e, the \u3cem\u3eStreptanthus morrisonii\u3c/em\u3e complex (Brassicaceae) [PDF]

open access: yes, 1989
The Streptanthus morrisonii complex is a six-taxon group of closely related serpentine rock outcrop endemics from Lake, Napa, and Sonoma counties of California, USA. Two new subspecies (S. morrisonii subsp. kruckebergii and S. brachiatus subsp. hoffmanii)
Dolan, Rebecca W., LaPre, Lawrence F.
core   +1 more source

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