Results 131 to 140 of about 824,803 (284)

Mass Spectrometry in Authentication and Forensic Approaches for Determining the Origin of Hazardous Chemicals

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Identification of a chemical agent yields insights into its physicochemical properties. By examining the intrinsic characteristics and environment of a compound, information about its history can be gathered. The main objective of authentication/forensic approaches to chemicals is to trace the history of the compound's origin, regardless of ...
Carla Orlandi, Grégoire Delaporte, Christine Albaret, Emmanuel Joubert, Anne Bossée, Emilien L. Jamin, Laurent Debrauwer   +6 more
wiley   +1 more source

An Open Database of Lunar Regolith and Simulants Properties

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Lunar regolith, the layer of unconsolidated material covering the Moon's surface, is central to the science and technology developed for the Moon, notably related to in‐situ science investigations, resource utilization, surface infrastructure, and mobility systems.
Léonie Gasteiner, Naomi Murdoch, Olfa D'Angelo   +2 more
wiley   +1 more source

Two new endemic species of Portulaca (Portulacaceae) from the Brazilian Pampa grasslands

Nordic Journal of Botany, EarlyView.
Portulaca L. is a monophyletic, cosmopolitan genus of succulent plants comprising ca 153 species, with particularly high diversity in xerophytic ecosystems in tropical and subtropical regions. Based on morphological evidence, we describe and illustrate two new species from the Brazilian Pampa, Portulaca guaritensis and Portulaca guenoa.
José Roberto Ferraz, Bárbara Pinheiro Moreira, João Marcelo Alvarenga Braga, Leonardo Paz Deble   +3 more
wiley   +1 more source

Design and Experiment of Customized PDC Bit for Volcanic Rock in the Northwestern Margin of Junggar Basin

Shiyou jixie, 2017
In view of the challenges of volcanic rocks in Junggar Basin like complex lithology, poor drillability and thick layer, the mechanics evaluation experiment of the volcanic rock in northwestern margin of the Junggar Basin has been carried out.
Yang Hu, Wen Qianbin, Zhou Penggao, Xiong Xudong, Sun Weiguo, Yang Hong   +5 more
doaj  

Using synthetic models to understand the detecting ability of ground‐penetrating radar for water‐conducting structures in the bedrock of formerly glaciated site

Near Surface Geophysics, EarlyView.
Abstract Utilizing synthetic models for the interpretation of ground‐penetrating radar (GPR) profiles can aid in the detection of hydrogeological structures by identifying their signatures. In this study, finite difference (FD) forward modelling was used to understand the detection ability of 50 MHz GPR for (1) the quaternary deposit–bedrock contact ...
Annika Katarina Åberg, Salla Eeva, Emilia Koivisto, Susanne Charlotta Åberg, Seija Kultti, Kirsti Korkka‐Niemi   +5 more
wiley   +1 more source

Interplanetary frontiers: terraforming from an invasion science perspective

Oikos, EarlyView.
The pursuit of a multi‐planetary existence represents one of humanity's greatest frontiers. If applied justly, it offers an opportunity to extend its civilization's lifespan amid escalating sustainability crises on Earth. One approach increasingly gaining traction is terraforming, a hitherto theoretical ecological and evolutionary experiment revolving ...
Teun Everts, Ronaldo Sousa, Phillip J. Haubrock   +2 more
wiley   +1 more source

Experimental Comparative Analysis of Hole‐Making Strategies and Cutting Parameters on Flexural Properties and Induced Delamination in S2 Glass and Basalt Fiber‐Reinforced Polymers

Polymer Composites, EarlyView.
Hole‐making strategy and machining parameters influence delamination and hole quality in S2‐glass and basalt FRP composites, which subsequently affet flexural performance. Improved hole integrity leads to enhanced structural performance during three‐point bending.
Sara Saeed Abdulrahman Eltahir, Cagatay Yilmaz, Sinan Kesriklioglu   +2 more
wiley   +1 more source

Enhanced random forest with geologically-informed feature optimization for complex volcanic rock lithology identification: A case study in the Wangfu Fault Depression, Songliao Basin. [PDF]

PLoS One
Jin X, Yu T, Wang P, Nie M, Lu S.
europepmc   +1 more source

Nano‐Engineered Basalt Fiber Composites With Halloysite Nanotubes: Durability and Drilling Behavior After Acidic Aging

Polymer Composites, EarlyView.
Schematic summary of the drilling damage and microstructural degradation mechanisms in basalt fiber‐reinforced composites after acidic aging. ABSTRACT This study investigates the drilling performance and environmental durability of basalt fiber reinforced polymer (BRC) and halloysite nanotube (HNT) modified basalt nanocomposites (BRnC) exposed to ...
İbrahim Aslan, Harun Yaka, Hasan Ulus, Halil Burak Kaybal   +3 more
wiley   +1 more source

Formation of lunar volcanic rocks on the Moon: Comparison with terrestrial volcanic rocks

Formation of lunar volcanic rocks on the Moon: Comparison with terrestrial volcanic rocks
資料番号 ...
openaire   +1 more source