Results 81 to 90 of about 1,085,425 (239)

An Alternative Estimation to Spurious Regression Model [PDF]

In sturdy econometrics specification search problems of unit roots and multicollinearity are well documented since the inception of regression analysis.
Shahidur Rahman
core  

Engineering of Crystal and Domain Structures in Epitaxial Y:HfO2 Thin Films by YSZ Substrate Miscut

Advanced Science, EarlyView.
We investigate how YSZ substrate miscut influences crystal structure and domain formation in epitaxial Y‐doped HfO2 thin films. Using magnetron sputtering, high‐resolution X‐ray diffraction, atomic‐resolution scanning transmission electron microscopy, and first‐principles calculations, we systematically examine the characteristics of thickness‐ and ...
Jun Young Lee, Hyung‐Jin Choi, Kun Hee Ye, Haneul Choi, Byeong‐hyeon Lee, Min‐Seok Kim, Dong‐Hun Han, June Hyuk Lee, Sung Ok Won, Tae Heon Kim, Hye Jung Chang, Jung‐Hae Choi, Seung‐Hyub Baek   +12 more
wiley   +1 more source

Diverse Landscape of Tunable Magnetic, Topological, and Ferroelectric States in 2D Ti3Se3Te2

Advanced Science, EarlyView.
Ti3Se3Te2 emerges as a multifunctional 2D van der Waals platform. The monolayer is a dynamically stable ferromagnetic quantum anomalous Hall insulator. In bilayers, two stacking configurations yield distinct phases: AA‐stacking hosts an altermagnetic quantum spin Hall insulator, while AA′‐stacking exhibits three‐state in‐plane ferroelectricity ...
Jiangtao Yu, Jingbo Bai, Yali Yang, Shifeng Qian, Xiaotian Wang, Zhuhong Liu   +5 more
wiley   +1 more source

Spurious modes caused by absorbing boundary conditions

, 1998
Spurious modes can occur in the analysis of radiating structures, if absorbing boundary conditions (ABC's) are used. They can be put down to complex eigensolutions of the enclosed region, of which the wavenumbers are computed for ABC's of different order.
Dreher, A.
core  

Identification of spurious modes of high-power 77-GHz gyrotron for collective thomson scattering in LHD

, 2012
Frequency measurements at 74-80GHz were conducted for the identification and suppression of spurious modes from the 77-GHz gyrotron, which was originally introduced as a power source for electron cyclotron resonance heating and is now also used as a ...
Nishiura, M, Yoshimura, Y, Kobayashi, S, Minami, R, Shimozuma, T, Saito, T, Tanaka, K, Takahashi, H, Kariya, T, Takita, Y, Tatematsu, Y, Ogasawara, S, Kubo, S, Imai, T, Igami, H, Ito, S, Mizuno, Y, Okada, K   +17 more
core   +1 more source

Data‐Driven Modeling of Composition–Processing–Microstructure Relations for Recycled Aluminum Cast Alloys

Advanced Science, EarlyView.
Interpretable machine learning reveals how composition and processing govern the formation and microstructural burden of Fe‐rich intermetallic compounds in recycled Al–Si–Fe–Mn alloys. By separating morphology selection from morphology‐conditioned burden partitioning, this framework shows that identical Fe contents can yield different intermetallic ...
Jaemin Wang, Waleed Mohammed, Dierk Raabe   +2 more
wiley   +1 more source

Sensitivity of Principal Oscillation Patterns (POPs) to data distribution in space

Meteorologische Zeitschrift, 2008
The skill of the Principal Oscillation Pattern (POP) technique is tested with respect to a situation where harmonic waves of prescribed frequency and wavelength move over a domain where data are recorded at inhomogeneously distributed stations.
Joseph Egger
doaj   +1 more source

Observation modes of EarthCARE/CPR with different Doppler measurement accuracy: evaluation of their applicability [PDF]

Atmospheric Measurement Techniques
An accurate characterization of cloud vertical motion is essential for understanding cloud microphysical and dynamical processes. The Cloud Profiling Radar (CPR) onboard the Earth Cloud Aerosol and Radiation Explorer (EarthCARE) satellite, launched in ...
Y. Imura, S. Aoki, T. Kubota, H. Nakatsuka, Y. Ohno, H. Okamoto   +5 more
doaj   +1 more source

Inappropriate Detrending and Spurious Cointegration [PDF]

The empirical literature is abundant with detrended cointegration, where cointegration relationships are tested and estimated with deterministic trend terms. Cointegration is, however, critically dependent on whether time series is detrended or not.
Heejoon Kang
core  

Physics‐Constrained Constitutive Learning of Rate‐Limiting Timescales for Efficient Hydrogen‐Based Direct Reduction for Green Steel Making

Advanced Science, EarlyView.
A conversion‐resolved constitutive framework is developed for the hydrogen‐based direct reduction of iron oxide pellets. Effective reaction and transport timescales are inferred directly from measured trajectories and mapped against operating conditions, pellet architecture, and composition. The analysis reveals how late‐stage transport control emerges
Anurag Bajpai, Barak Ratzker, Pasquale Cavaliere, Dierk Raabe   +3 more
wiley   +1 more source