Results 41 to 50 of about 27,483 (302)

Tunable Extraordinary Optical Transmission in the Long‐Wavelength Infrared Range Using Electrostatic MEMS Actuation

open access: yesAdvanced Materials Technologies, EarlyView.
A MEMS‐integrated metamaterial filter enables continuous, low‐voltage spectral tuning in the long‐wavelength infrared (LWIR). The device employs extraordinary optical transmission in a dual suspended metasurface stack, where electrostatic actuation precisely controls the intermembrane air gap.
Oleg Bannik   +6 more
wiley   +1 more source

Geomechanically Sustainable Gas Hydrate Production Using a 3D Geological Model in the Ulleung Basin of the Korean East Sea

open access: yesEnergies, 2022
Although various simulation studies on gas hydrate production have been conducted, a single vertical well in the cylindrical system has been adopted in most research.
Taehun Lee   +4 more
doaj   +1 more source

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

open access: yesAdvanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik   +7 more
wiley   +1 more source

Research on a 3D Geological Disaster Monitoring Platform Based on REST Service

open access: yesISPRS International Journal of Geo-Information, 2018
Representational state transfer (REST) is a resource-based service architectural style. It abstracts data and services as resources and accesses them through a unique Uniform Resource Identifier (URI).
Xiaopeng Leng   +3 more
doaj   +1 more source

Analytical expressions for macrodispersion in three-dimensional Sub-Gaussian hydraulic conductivity fields

open access: yes, 2021
Subsurface flow and transport settings are typically characterized by spatial variability of the underlying hydro-geological attributes (e.g., permeability and porosity) and a high degree of uncertainty associated with data and model parameter estimates.
Ceresa, Laura   +3 more
core   +1 more source

In Vivo Microplastic Detection With Photoacoustic Imaging

open access: yesAdvanced Science, EarlyView.
ABSTRACT Microplastics are posing an escalating threat to both ecological systems and human health. Yet, current methods for investigating their bioaccumulation are highly invasive, requiring destructive analysis of ex vivo tissues via mass spectrometry, dye labelling, or Raman microspectroscopy.
Joseph C. Bear   +9 more
wiley   +1 more source

Research and application of water drainage borehole design method based on three-dimensional geological model

open access: yesMeikuang Anquan
In order to address the issues of low efficiency, insufficient visualization, and inadequate utilization of three - dimensional geological information in the design of mine water drainage boreholes, a design method for water drainage boreholes is ...
Zhenrong WANG
doaj   +1 more source

Dressing the Emperor: The Role of Three-Dimensional Information Visualization Software in the Development of Three-Dimensional Hydrogeologic Models [PDF]

open access: yes, 2006
This poster was presented at the 2006 Annual Meeting of the Geological Society of America, October 22-25, 2006, Philadelphia, Pa.The goal of this research is to develop a model that describes the saturated and unsaturated groundwater flow in Berrien ...
Letsinger, Sally L.   +2 more
core  

Two Routes to Land: Genomic Underpinnings of Parallel Aerial Egg Deposition in Aquatic Old‐World Pila and New‐World Pomacea (Ampullariidae)

open access: yesAdvanced Science, EarlyView.
Comparative genomics of Gondwana‐diverged Pila and Pomacea reveals parallel evolution of aerial oviposition. Convergent chromosomal rearrangements reshape regulatory landscapes within topologically associating domains. Lineage‐specific gene family expansions and viral‐derived perivitelline proteins (PV1) underpin desiccation resistance.
Yufei Zhou   +10 more
wiley   +1 more source

Research on 3D geological modeling of fractured-vuggy carbonate reservoirs

open access: yesEnergy Reports, 2022
Fractured-vuggy carbonate reservoirs are mainly composed of holes, caves, and fractures, with large disparity in scale, irregular shape, and discontinuous distribution.
Lingling Yan, Quanwen Liu, Xuefen Liu
doaj   +1 more source

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