Results 41 to 50 of about 354 (185)

The use of thermal imaging to assess heat generation during dental implant bed preparation in the presence of a surgical guide with an incorporated coolant channel

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluates the thermodynamic benefits of including an irrigation fluid channel in the design of surgical guides used for dental implant site drilling. Materials and Methods Two types of guides suitable for hosting artificial bone plates that mimic the mechanical properties of human alveolar bone were designed: a classical ...
Robert‐Angelo Tuce, Vasile Pupăzan, Monica Neagu, Stelian Arjoca, Adrian Neagu   +4 more
wiley   +1 more source

Optimization of the utilization of deep borehole heat exchangers

Geothermal Energy, 2020
Deep-borehole heat exchangers (DBHE) are generally coaxial pipes installed in deep boreholes and has become an alternative approach to utilize geothermal energy.
Sheng Pan, Yanlong Kong, Chaofan Chen, Zhonghe Pang, Jiyang Wang   +4 more
doaj   +1 more source

Influence of Rotation Speed and Air Pressure on the Down the Hole Drilling Velocity for Borehole Heat Exchanger Installation

Energies, 2020
The relation between rotation speed, air pressure and the velocity of air-rotary drilling using the down the hole method is determined in an empirical manner.
Tomasz Sliwa, Kinga Jarosz, Marc A. Rosen, Anna Sojczyńska, Aneta Sapińska-Śliwa, Andrzej Gonet, Karolina Fąfera, Tomasz Kowalski, Martyna Ciepielowska   +8 more
doaj   +1 more source

Large‐Scale Hydrogen Storage: Surface and Subsurface Challenges

ChemBioEng Reviews, Volume 13, Issue 2, April 2026.
This review examines underground hydrogen storage with emphasis on the interaction between surface facilities and subsurface reservoirs. Variable renewable hydrogen requires compression, buffering, and purification before injection, while subsurface processes influence wellhead pressure, temperature, and composition.
Mostafa Montazeri, Alireza Salmachi, Manouchehr Haghighi, Tara Hosseini   +3 more
wiley   +1 more source

Ice Sheet Dynamics Drive Pronounced Changes in the Subsurface Freshwater‐Saltwater Interface

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Saltwater is migrating into freshwater aquifers globally with water quality and biogeochemical implications, yet saltwater intrusion in glaciated regions is sparsely investigated. Field observations suggest that groundwater head in glaciated systems is influenced by ice sheet forcings and provides evidence that seawater infiltrated into ...
Julia A. Guimond, Aaron A. Mohammed, Barret L. Kurylyk, Michelle A. Walvoord, Victor F. Bense   +4 more
wiley   +1 more source

Optimal sizing of borehole heat exchangers

Strojarstvo : časopis za teoriju i praksu u strojarstvu, 2009
The heat pumps coupled to the borehole heat exchangers (BHE) can serve for heating and/or cooling of buildings. Optimal sizing of BHE is important because of high drilling costs and importance of matching borehole thermal capacity with the capacity of the heat pump.
Ćurko, Tonko, Ruševljan, Miroslav, Soldo, Vladimir   +2 more
openaire   +4 more sources

A 500‐kyr Pluvial Interval Triggered Lacustrine Carbon Burial in Late Cretaceous East Asia

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract The early Late Cretaceous hothouse was featured by intense storms and a prevailing monsoon climate, yet direct evidence for regional extreme precipitation events is rare. Here, we reconstruct local weathering and hydrological processes using magnesium and strontium isotopes (δ26Mg and 87Sr/86Sr) from lacustrine dolostones in the Upper ...
Yuke Liu, Xiaomei Wang, Minghao Wu, Jin Su, Chengshuai Yuan, Xuening Qi, Shuichang Zhang   +6 more
wiley   +1 more source

Performance analysis of deep borehole heat exchangers for decarbonization of heating systems

Deep Underground Science and Engineering
Meeting the climate change mitigation targets will require a substantial shift from fossil to clean fuels in the heating sector. Heat pumps with deep borehole exchangers are a promising solution to reduce emissions.
Andreas E. D. Lund
doaj   +1 more source

Heat transfer analysis of deep coaxial geothermal heat exchangers: Insights into heat-flux distribution on borehole wall

Energy and Built Environment
Deep geothermal heat exchangers (DGHEs) have emerged as a potential approach to exploiting geothermal energy as a stable high-temperature heat source for ground-coupled heat pumps.
Shurun Wang, Xianhua Deng, Jing Wang, Min Li   +3 more
doaj   +1 more source

How Does Fluid Exchange Between Pores in Unsaturated Porous Media?

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract The inter‐pore fluid exchange, driven by molecular diffusion, is referred to as pore coupling. The pore coupling affects subsurface pore‐scale physicochemical dynamics. Monitoring pore coupling is essential for understanding numerous hydrological and ecological processes.
Junwen Zhou, Laurenz Schröer, Veerle Cnudde, Chi Zhang   +3 more
wiley   +1 more source