Results 31 to 40 of about 7,913 (294)

Recent Aqueous Activity on Mars Evidenced by Transverse Aeolian Ridges in the Zhurong Exploration Region of Utopia Planitia

open access: yesGeophysical Research Letters, 2023
Aqueous activities on Mars have gradually declined since the Noachian (>3.7 Ga). Although water can be stored in the subsurface during the latest epochs, geomorphological evidence is still limited. In this study, we used in situ imaging and spectral data
Jiang Wang   +17 more
doaj   +1 more source

Validating gene models and novel TARs. [PDF]

open access: yes, 2012
(A) Schematic showing splice junction library generation. (B) For each of the three gene models shown, the x-axis is the genomic coordinates and the gray boxes represent individual exons, with arrows indicating strand.
A. Michael Sismour (11003)   +11 more
core   +1 more source

The Generation Game: Has Modern Contemporary Total Ankle Replacement (TAR) Improved Survivorship?

open access: yesFoot & Ankle Orthopaedics, 2022
Category: Ankle Introduction/Purpose: Total ankle replacements (TARs) provide pain relief with preservation of movement and function. The most successful TARs are either 2nd or current 3rd generation in design, whilst 4th generation implants are steadily
Raju S. Ahluwalia MBBS, MFSEM(UK), BSc, FRCS(Tr&Orth)   +5 more
doaj   +1 more source

Calculation of the Rate Constants of Vacuum Residue Hydrogenation Reactions in the Presence of a Chrysotile/NiTi Nanocatalyst

open access: yesFuels
The paper presents the results of an investigation into the kinetics of catalytic hydrogenation of vacuum residue at temperatures of 380, 400 and 420 °C and different durations, ranging from 30 to 70 min, using a nanocatalyst containing the active metals
Nazerke Balpanova   +5 more
doaj   +1 more source

Steam-Reforming Characteristics of Heavy and Light Tars Derived from Cellulose

open access: yesJournal of Thermal Science and Technology, 2012
In this study, tar formation and steam-reforming mechanisms are discussed by separating the tars into heavy, middle, and light tars. Cellulose was heated in a drop-tube furnace under an Ar or Ar/steam atmosphere.
Hirotatsu WATANABE   +2 more
doaj   +1 more source

Catalytic features of TarS. [PDF]

open access: yes, 2016
(A) Schematic of the proposed SN2 reaction mechanism, with the glycosyltransferase reaction between UDP-GlcNAc and polyRboP resulting in UDP and β-polyRboP-GlcNAc.
Dustin T. King (534327)   +9 more
core   +1 more source

Distribution and Morphologies of Transverse Aeolian Ridges in ExoMars 2020 Rover Landing Site

open access: yesRemote Sensing, 2019
Aeolian processes are believed to play a major role in the landscape evolution of Mars. Investigations on Martian aeolian landforms such as ripples, transverse aeolian ridges (TARs), and dunes, and aeolian sediment flux measurements are important to ...
Anshuman Bhardwaj   +3 more
doaj   +1 more source

Catalytic Hot Gas Cleanup of Biomass Gasification Producer Gas via Steam Reforming Using Nickel-Supported Clay Minerals

open access: yesEnergies, 2021
Amongst the issues associated with the commercialization of biomass gasification, the presence of tars has been one of the most difficult aspects to address.
Prashanth Reddy Buchireddy   +3 more
doaj   +1 more source

Adenosine triphosphate as a modulator of protein interactions and stability

open access: yesFEBS Open Bio, EarlyView.
ATP is best known as the cell's energy currency, but it also shapes how proteins fold, interact, aggregate and form biomolecular condensates. This review explains the emerging physical principles behind these effects, including weak binding to charged protein regions, magnesium‐dependent behaviour and concentration‐dependent control of protein ...
Shuyuan Tan, Robin Curtis
wiley   +1 more source

Study of catalytic upgrading of biomass tars using Indonesian iron ore [PDF]

open access: yes, 2020
. Catalytic decomposition is a promising way for chemical upgrading process of low quality oil such as biomass tars. In this experiment, catalytic decomposition of biomass tars was performed over Indonesian low grade iron ore catalyst.
WICAKSO, DONI RAHMAT
core   +1 more source

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