Results 51 to 60 of about 331 (194)

Individualization and Purification of Carbon Nanothreads

Small, EarlyView.
Reductive dissolution enables the solution processing of carbon nitride nanothreads into individualized nanothreads that can be assembled into ultrathin films. The resulting interconnected networks exhibit weakly semiconducting behavior, with the conductivity decreasing by only ∼40% from room temperature to 2 K.
George Bepete, Sikai Wu, Bohan Xu, Ámbar E. Escobar Colón, Andres Fest, Da Zhou, Yu Lei, Methembe Moyo, Zhuohang Yu, George Chimowa, Kazunori Fujisawa, Nestor Perea‐Lopez, Vincent H. Crespi, Mauricio Terrones   +13 more
wiley   +1 more source

MPC-Based Offset-Free Tracking Control for Intermittent Transonic Wind Tunnel

IEEE Access, 2020
This paper addresses the offset-free model predictive control (MPC) for the intermittent transonic wind tunnel (ITWT). The offset-free property holds by introducing the controller state equation which introduces an integral action, while the controller ...
Baocang Ding, Jun Wang, Xiaoming Tang
doaj   +1 more source

High‐Density Iron Nanostructures Grown on Electrospun PVA/Pectin Fibers via Seed‐Mediated Strategy for As(V) Remediation

Small Methods, EarlyView.
A seed‐assisted anisotropic growth strategy enabling unprecedented iron loading and controlled anisotropic nanostructure formation on electrospun PVA/pectin nanofibers is presented. By decoupling nucleation and growth through sequential Fe2+ then Fe3+ doping, it achieves a 12‐fold increase in accessible iron content, producing rice‐grain‐like ...
Ayelen C. Santos, Silvina Cerveny, Carolina Iacovone, Cinthia P. Ramos, Angel J. Marzocca, Silvia Goyanes   +5 more
wiley   +1 more source

Observations on some transonic wind tunnel test results of a standard model with a T-tail [PDF]

Scientific Technical Review, 2016
As a part of a periodic health monitoring of the wind tunnel structure, instrumentation and flow quality, a series of tests of an AGARD-C calibration model was performed in the 1.5 m T-38 trisonic wind tunnel of the Military Technical Institute (VTI) in ...
Damljanović Dijana, Vuković Đorđe, Vitić Aleksandar, Isaković Jovan, Ocokoljić Goran   +4 more
doaj  

Nonthermal plasma approaches for combating implant‐associated infections: A compendious review

VIEW, EarlyView.
Implant‐associated infections pose serious clinical challenges. Non‐thermal plasma (NTP) modifications overcome this bottleneck in distinct ways relative to traditional sterilization methods. Gas‐phase plasmas generate highly energetic species, UV radiation and reactive oxygen/nitrogen species (RONS), which alter the implant surface properties.
A. M. Trimukhe, Satish Rojekar, Amol Gholap, K. Navaneetha Pandiyaraj, Mukesh Patekar, Claudia Riccardi, R. R. Deshmukh, Tomáš Kovářík, Kalim Deshmukh   +8 more
wiley   +1 more source

Experimental Investigation of the Boundary Layer Transition on a Laminar Airfoil Using Infrared Thermography

EPJ Web of Conferences, 2018
The transition in the boundary layer is investigated using infrared thermography (IRT). The study is carried out on a laminar airfoil in the transonic intermittent in-draft wind tunnel.
Jelínek Tomáš
doaj   +1 more source

Numerical analysis of transonic flow over the FFA-W3-211 wind turbine tip airfoil [PDF]

Wind Energy Science
Modern wind turbines are the largest rotating machines ever built, with blade lengths exceeding 100 m. Previous studies demonstrated how the flow around the tip airfoils of such large machines reaches local flow Mach numbers (Ma), at which the ...
M. C. Vitulano, M. C. Vitulano, D. De Tavernier, G. De Stefano, D. von Terzi   +4 more
doaj   +1 more source

Microwave‐assisted one‐pot synthesis of MXene–rGO–Au nanocomposites for high‐sensitivity dopamine detection

VIEW, EarlyView.
MXene/rGO/Au nanocomposites on a modified glassy carbon electrode enable rapid, sensitive DA detection with strong selectivity and reliable real‐sample recovery. The one‐pot microwave synthesis delivers a conductive, high‐performance platform for practical electrochemical DA sensing.
Farah Ezzah Ab Latif, Arshid Numan, Norhuda Abdul Manaf, Mohammad Khalid, Nabisab Mujawar Mubarak, Haizum Aimi Zaharin, Nilay Shah   +6 more
wiley   +1 more source

Numerical modelling of turbulent transition in complex geometries

EPJ Web of Conferences, 2018
The work deals with numerical simulation of laminar-turbulent transition in transonic flows in turbine cas-cades. The 3D cascade geometry as well as 2D model cascade in a wind tunnel is simulated.
Louda Petr, Příhoda Jaromír, Kozel Karel   +2 more
doaj   +1 more source

Biogeochemical, sedimentological and dinoflagellate‐based reconstruction of the Holocene palaeoenvironment of the east Limfjord, Denmark

Boreas, EarlyView.
To assess how the eastern part of the Limfjord system has changed over the Holocene, relative to the wider Limfjord and western Baltic region, a sedimentary succession spanning c. 9600–150 cal. a BP was collected from Nibe Bredning, near Sebbersund, from a shallow coastal inlet along the eastern connection between the Limfjord and the Kattegat (north ...
Gabriella M. Weiss, Jonathan P. Lewis, Paula J. Reimer, David B. Ryves, Peter Rasmussen, Jesper Olsen   +5 more
wiley   +1 more source