Results 51 to 60 of about 2,570 (205)

Laguna Fuente de Piedra: An example of a dolomite factory recording ~50,000 years of depositional and paleoclimatic evolution

The Depositional Record, Volume 12, Issue 1, February 2026.
This study characterises carbonate mineral precipitation mechanisms and their paleoenvironmental implications in a semi‐arid, saline playa lake system. SEM image with EDS spectra shows microcrystalline, spherical shaped dolomite crystals from Laguna Fuente de Piedra composed of nanocrystals with bacterial voids and EPS.
Zeina Naim, Guolai Li, Luis Gibert, Jan‐Berend Stuut, Gonzalo Jiménez‐Moreno, Mónica Sánchez‐Román   +5 more
wiley   +1 more source

Design, test, and verification of in-situ condition preserved coring and analysis system in lunar-based simulation environment

International Journal of Mining Science and Technology
The lunar surface and its deep layers contain abundant resources and valuable information resources, the exploration and exploitation of which are important for the sustainable development of the human economy and society.
Haichun Hao, Mingzhong Gao, Yan Wu, Zheng Gao, Yongcheng Li, Xuemin Zhou, Peng Chu, Xuan Wang, Jiahua Li, Lang Zhou, Jie Song, Tianxiang Ao, Yikun Yang   +12 more
doaj   +1 more source

Wood wasp inspired space and earth drill [PDF]

, 2010
In this chapter, we explain why the low gravity encountered on Mars or on the Moon and the low mass of the probes, landers and rovers that carry drilling devices limit classical drilling techniques.
Coste, Pierre, Gao, Yang, Gouache, Thibault, Gourinat, Yves   +3 more
core  

BURIED ORNAMENTS: EXPLORING FUNERARY BEHAVIOURS IN THE CHALCOLITHIC FROM THE LOWER DANUBE

Oxford Journal of Archaeology, Volume 45, Issue 1, Page 2-27, February 2026.
Summary This article focuses on personal adornments found in Chalcolithic funerary contexts from the Lower Danube. Generally, these artefacts are made from exotic raw materials originating from the Mediterranean sea, particularly Spondylus shells, along with Glycymeris or Antalis shells, and less frequently from local materials.
Monica Mărgărit
wiley   +1 more source

A Piezoelectric-Driven Rock-Drilling Device for Extraterrestrial Subsurface Exploration

Shock and Vibration, 2018
The rocks on extraterrestrial objects contain plenty of original geological and biological information. Drilling and sampling are an essential task in lunar exploration or future explorations of other planets like mars. Due to the limitation of payloads,
He Li, Yi Shen, Qingchuan Wang, Yinchao Wang, Deen Bai, Zongquan Deng   +5 more
doaj   +1 more source

Significance and methodology: Preprocessing the big data for machine learning on TBM performance

Underground Space, 2022
This paper addresses the significance of preprocessing big data collected during a tunnel boring machine (TBM) excavation before it is used for machine learning on various TBM performance predictions.
Hao-Han Xiao, Wen-Kun Yang, Jing Hu, Yun-Pei Zhang, Liu-Jie Jing, Zu-Yu Chen   +5 more
doaj   +1 more source

Boundary-domain integro-differential equation of elastic damage mechanics model of stationary drilling [PDF]

, 2005
Copyright @ 2005 EC ...
Mikhailov, SE
core  

Neuroimmune Microenvironment Reprogramming via Immuno‐piezoelectric Transducers for Synergistic Stem Cell Therapy in Traumatic Brain Injury

Advanced Materials, Volume 38, Issue 2, 8 January 2026.
A novel immuno‐piezoelectric transducer is innovatively developed. This device promotes neural stem cell (NSC) differentiation and maturation via ultrasound‐induced electrical stimulation and it amplifies the therapeutic efficacy of NSC in traumatic brain injury (TBI) by modulating the immune microenvironment. This piezoelectric transducer with “immune‐
Linlin Liang, Xin Li, Kai Hu, Pingqiang Cai, Jianwu Wang, Jing Yu, Shasha Wang, Yuwei Zhao, Changgeng Xu, Siwei Li, Hong Liu, Changyong Wang, Jin Zhou   +12 more
wiley   +1 more source

Penetration Characteristics of a Rock Drill Bit into Rock

Journal of MMIJ
Percussion rock drills have been widely used mainly for blast hole drilling in mineral extraction, tunnel excavation, and underground development.
Kimihiro HASHIBA, Katsunori FUKUI
doaj   +1 more source

The Twin‐Rooted Anomaly: Endodontic Management of a Rare Case of a Maxillary Central Incisor With Two Roots

Clinical Case Reports, Volume 14, Issue 1, January 2026.
ABSTRACT This case report describes the endodontic management of a maxillary central incisor with two roots, representing a rare anatomical variation. A 73‐year‐old female patient presented with a fractured tooth #21 with a carious crown. Pulp sensibility testing using cold spray elicited a sharp and prolonged painful response, consistent with a ...
Mohsen Aminsobhani, Maryam Babaahmadi
wiley   +1 more source