Results 181 to 190 of about 4,689,593 (329)

Spectral Tuning of Hyperbolic Shear Polaritons in Monoclinic Gallium Oxide via Isotopic Substitution

Advanced Materials, EarlyView.
Spectral tuning of highly directional hyperbolic shear polaritons is realized via isotopic substitution of 16O to 18O in monoclinic β$\beta$‐phase gallium oxide. A red‐shift of almost 40 cm−1 is experimentally demonstrated with near‐field imaging, corroborated by the permittivity change extracted from far‐field experiments and density functional theory.
Giulia Carini, Mohit Pradhan, Elena Gelžinytė, Andrea Ardenghi, Saurabh Dixit, Maximilian Obst, Aditha S. Senarath, Niclas S. Mueller, Gonzalo Álvarez‐Pérez, Katja Diaz‐Granados, Ryan A. Kowalski, Richarda Niemann, Felix G. Kaps, Jakob Wetzel, Raghunandan Balasubramanyam Iyer, Piero Mazzolini, Mathias Schubert, J. Michael Klopf, Johannes T. Margraf, Oliver Bierwagen, Martin Wolf, Karsten Reuter, Lukas M. Eng, Susanne C. Kehr, Joshua D. Caldwell, Christian Carbogno, Thomas G. Folland, Markus R. Wagner, Alexander Paarmann   +28 more
wiley   +1 more source

Adaptive model for rate of penetration prediction based on the dynamic correlation of influencing factors. [PDF]

Front Big Data
Deng Y, Zhou X, Feng Z, Li X, Li H.
europepmc   +1 more source

In Situ Amine Formation to Modulate MOF‐Derived PdIn N‐Doped Carbon Catalysts

Advanced Materials, EarlyView.
An amine‐assisted approach converts PdIn‐MOF into PdIn intermetallic nanoparticles embedded in N‐doped carbon. In situ‐generated amines trigger early Pd nucleation, producing smaller PdIn domains than direct pyrolysis. Amine sterics and basicity tune composition and particle size, while solvent and amine co‐determine textural features.
Gonzalo Egea, Jordan Santiago Martinez, M. Asunción Molina, Jaime Mazarío, Lucy Costley‐Wood, Christian Cerezo‐Navarrete, Carlo Marini, Eduardo Villalobos‐Portillo, Andrew M. Beale, Pascual Oña‐Burgos   +9 more
wiley   +1 more source

A Novel Denoising Method for Mud Continuous-Wave Signals Based on Selective Ensemble Strategy with Particle Swarm Optimization. [PDF]

Sensors (Basel)
Huang C, Cai W, Pang D, Yang Y, Du X, Duan X, Zhou Y.   +6 more
europepmc   +1 more source

High‐Performance Zero‐Gap Glycerol‐Fed Electrolyzer for C3 Chemicals and Hydrogen Production

Advanced Materials, EarlyView.
This work presents a dynamic, self‐regulating operation strategy that enables selective glycerol electrooxidation in the OER‐free regime, co‐producing C3 chemicals and hydrogen at cell voltages below 1.25 V. Voltage‐ and temperature‐resolved analyses define optimal operating conditions, achieving a sustained current density of 500 mA cm−2 at ∼1.21 V ...
Shayan Angizi, Inder Sangha, Mahsa Khoshnam, Mahdis Nankali, Ashkan Irannezhad, Amirhossein Rakhsha, Zahra Teimouri, Amir Foroozan, Mengnan Zhu, Navid Noor, Reza Eslami, Drew Higgins   +11 more
wiley   +1 more source

An optimization technique based on mechanical specific energy concept to improve drilling efficiency: a case study

Записки Горного института
For years attempts have been made in the drilling industry to increase the drilling efficiency and decrease the associated costs. The drilling efficiency can be evaluated by comparing applied energy, i.e., mechanical specific energy, with rock strength ...
Sajjad Khoshro, Seyyed Shahab Tabatabaee Moradi   +1 more
doaj  

Investigating the impact of viscosifier concentrations on hydraulic horsepower at the bit. [PDF]

Sci Rep
Ohaegbulam C, Wecheonwu B, Igwilo K, Ezekannagha C, Nkemakolam I, Onyejekwe I.   +5 more
europepmc   +1 more source

C16 Phase High Entropy Borides With High Magnetic Anisotropy

Advanced Materials, EarlyView.
Rare‐earth‐free C16‐phase high entropy boride thin films exhibit enhanced magnetic anisotropy with coercivities surpassing their binary and ternary counterparts. Combinatorial synthesis of (Fe‐Co‐Ni‐Mn)2B films combined with density functional theory enables mapping of the magnetic properties across the composition space, revealing high entropy ...
Willie B. Beeson, Dhritiman Bhattacharya, Dinesh Bista, Bradley J. Fugetta, Gen Yin, Kai Liu   +5 more
wiley   +1 more source

Optimization of micro tool geometry for ballpoint pen tip production using finite element simulation and orthogonal experiments. [PDF]

Sci Rep
Bi Y, Tu L, Li X, Zhao S.
europepmc   +1 more source

Monitoring drilling bit parameters allows optimization of drilling rates

Μη διαθέσιμη ...
Κελεσιδης Βασιλειος(http://users.isc.tuc.gr/~vkelesidis), Kelesidis Vasilis(http://users.isc.tuc.gr/~vkelesidis), Dalamarinis P.()   +2 more
openaire   +1 more source