Results 111 to 120 of about 85,345 (316)

Evidence for Seismogenic Hydrogen Gas, a Potential Microbial Energy Source on Earth and Mars [PDF]

open access: yes, 2016
M thanks the STFC for a PhD studentship and the NASA Astrobiology Institute for additional funding (NNAI13AA90A; Foundations of Complex Life, Evolution, Preservation and Detection on Earth and Beyond).
Blamey, Nigel J F   +2 more
core   +1 more source

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland   +5 more
wiley   +1 more source

1999年台湾集集MW7.6地震跨断层场地相对运动

open access: yesDizhen xuebao
为了获得近断层地震动准确的残余位移信息,提出了一种变步长网格搜索地震动基线校正方法。首先基于1999年我国台湾MW7.6集集地震强震动数据,探讨了近断层地震动的位移特征,然后通过地震动时程初始时刻的校正获得了集集地震多组上、下盘台站之间的相对运动时程数据,分析了分别靠近断层上、下盘场地之间相对运动的位移时程特征。结果显示:近断层地震动的滑冲效应显著,断层的平均滑冲速度可高达1.4 m/s;断层两盘间的相对运动类似于近断层地震动的运动特征,且幅值更大;近断层的残余位移约是断层两盘间最大相对位移的80%.
Longjun Xu   +4 more
doaj   +1 more source

The Wister Mud Pot Lineament: Southeastward Extension or Abandoned Strand of the San Andreas Fault? [PDF]

open access: yes, 2008
We present the results of a survey of mud pots in the Wister Unit of the Imperial Wildlife Area. Thirty-three mud pots, pot clusters, or related geothermal vents (hundreds of pots in all) were identified, and most were found to cluster along a northwest ...
Hudnut, Kenneth W., Lynch, David K.
core   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

Structural instability within the active crater of Poás volcano, Costa Rica

open access: yesVolcanica
This study examines structural patterns in and around the crater of Poás volcano in Costa Rica to determine the current level of stability within the edifice.
John Stix   +6 more
doaj   +1 more source

Relation of Magnetic and Gravity Field Data to Selected Structural Elements of the Central Portion of the Arkoma Basin [PDF]

open access: yes, 1980
In order to acquire a greater understanding of some of the major basement structural features characteristic of the Arkoma basin, magnetic and gravity data have been collected and analyzed for a selected area.
McBride, John H.
core   +2 more sources

Crustal fault reactivation facilitating lithospheric folding/buckling in the central Indian Ocean

open access: yes, 1996
High-quality, normal-incidence seismic reflection data confirm that tectonic deformation in the central Indian Ocean occurs at two spatial scales: whole lithosphere folding with wavelengths varying between 100 and 300 km, and compressional reactivation ...
Beekman, F.   +3 more
core   +1 more source

Novel Tailoring of Ternary ZnS‐MXene‐TiO2 Nanocomposite Heterojunction and Its Tunable Electrochemical Properties With Enhanced Photocatalytic Degradation

open access: yesAdvanced Engineering Materials, EarlyView.
ZnS‐MXene‐TiO2 nanocomposite heterojunction for photocatalytic decomposition of this methylene blue dye (MB) greatly improves light absorption, charge separation, and active site area. Two‐dimensional MXene forms nanocomposites by easily combining them with 0D (quantum dots), 1D (tube and wire), 2D (plane and sheet), and 3D (particle and lamellar ...
Latiful Kabir   +7 more
wiley   +1 more source

Long Unrest (2007–2025) at Laguna del Maule: Linking Strain Field and Seismicity From GNSS and Seismic Data

open access: yesGeophysical Research Letters
The Laguna del Maule volcanic field in Chile has been uplifting at exceptional rates since 2007, offering a unique opportunity to examine the interplay between crustal deformation and magma dynamics.
M. Navarrete‐Reyes   +6 more
doaj   +1 more source

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