Results 61 to 70 of about 9,537 (142)

Magnetic fluctuations and itinerant ferromagnetism in two-dimensional systems with van Hove singularities

, 2012
We use the quasistatic approach to analyze the criterion of ferromagnetism for two-dimensional (2D) systems with the Fermi level near Van Hove singularities (VHS) of the electronic spectrum. It is shown that the spectrum of spin excitations (paramagnons)
A. A. Katanin, A. A. Katanin, A. A. Katanin, A. A. Katanin, A. Auerbach, A. J. Millis, C. Honerkamp, D. Belitz, F. Guinea, F. Nakamura, F. Onufrieva, H. Tasaki, I. E. Dzyaloshinskii, I. I. Mazin, J. A. Hertz, J. A. Hertz, J. Bednorz, J. Kanamori, J. Schmalian, J. Vilk, K. K. Murata, N. D. Mermin, N. Kikugawa, P. A. Igoshev, P. Monthoux, R. Hlubina, S. L. Adler, S. Ma, S. V. Vonsovskiĭ, T. Moriya, V. G. Bar’yakhtar, V. Yu. Irkhin   +31 more
core   +1 more source

Performance and Emission Characteristics of Raphanus sativus, Jatropha, and Balanites Aegyptiaca Seed Mixed Biodiesel Blends in a Direct Injection Diesel Engine

Energy Science &Engineering, Volume 14, Issue 1, Page 399-411, January 2026.
Flow chart of the transesterification process followed to produce the biodiesels. ABSTRACT The current study analyzes the performance and emission attributes of different blends (0%, 20%, 40%, 60%, 80%, and 100% being termed as MB0, MB20, MB40, MB60, MB80 and MB100, respectively) of biodiesel derived from Raphanus Sativus, Jatropha, and Balanites ...
Jatoth Heeraman, Sandeep Chinta, Gade Hima Bindu, Otabek Mukhitdinov, Sanjarbek Madaminov, Alisher Abduvokhidov, Nima Khalilpoor   +6 more
wiley   +1 more source

Digital Twin Approaches for Gear NVH Optimization: A Literature Review of Modeling, Data Integration, and Validation Gaps

Machines
Quiet drivetrains have become a central requirement in modern electric vehicles, where the absence of engine masking makes even subtle gear tones clearly audible.
Krisztian Horvath, Ambrus Zelei
doaj   +1 more source

Superconductivity in the repulsive Hubbard model: an asymptotically exact weak-coupling solution

, 2010
We study the phase diagram of the Hubbard model in the limit where U, the onsite repulsive interaction, is much smaller than the bandwidth. We present an asymptotically exact expression for T$_c$, the superconducting transition temperature, in terms of ...
A. Montorsi, D. J. Scalapino, I. E. Dzyaloshinskii, L. P. Pitaevskii, P. W. Anderson, S. A. Kivelson, S. Raghu   +6 more
core   +1 more source

Controlling Rotational Motion of Nonplanar Porphyrin Atropisomers by Metal Coordination

Helvetica Chimica Acta, Volume 109, Issue 1, January 2026.
The unpredictable rotational barriers of nonplanar porphyrin atropisomers can be combated using metal coordination to form porphyrin superstructures, selectively capturing a single atropisomer from an unstable mixture. ABSTRACT Porphyrin atropisomerism is an outstanding tool for the accessibility of shape‐specific molecules, yet over 20 years after the
Sophie Maguire, John E. O'Brien, Brendan Twamley, Liam Cribbin, Mathias O. Senge   +4 more
wiley   +1 more source

High Coherence Times in NV‐Doped Diamond Films for Quantum Sensing

physica status solidi (a), Volume 223, Issue 2, January 2026.
This study demonstrates the growth of micrometer‐thin diamond films with nitrogen‐vacancy centers exhibiting record‐long spin coherence times at room temperature. By combining isotopic purification, controlled nitrogen incorporation, and strain minimization, the authors achieve coherence times approaching theoretical limits, paving the way for highly ...
Rebekka Eberle, Philip Schätzle, Cheuk Kit Cheung, Andrej Denisenko, Peter Knittel   +4 more
wiley   +1 more source

Placement of Nitrogen‐Vacancy‐Centers in Diamond Through Chemical Vapor Deposition Growth Techniques

physica status solidi (a), Volume 223, Issue 2, January 2026.
Chemical vapor deposition techniques for precise nitrogen‐vacancy (NV) center positioning in diamond for quantum applications are reviewed. Delta‐doped layer fabrication achieves vertical positioning accuracy, while advanced methods provide full spatial control over NV placement.
Philip Schätzle, Nicola Lang, Peter Knittel   +2 more
wiley   +1 more source

Perception enhancement for steer-by-wire systems [PDF]

, 2005
Modern automobiles are safer and more comfortable than ever before. If there is one criticism that can be made, however, it is that the achievement of higher levels of comfort has sometimes come at the expense of a lack of driver involvement. The issue
Giacomin, J
core  

Longitudinal Evaluation of Liver and Renal Functions in Patients Undergoing Tenofovir Disoproxil Fumarate–Based Antiretroviral Therapy in Southern Vietnam

AIDS Research and Treatment, Volume 2026, Issue 1, 2026.
Introduction Tenofovir disoproxil fumarate (TDF)–based antiretroviral therapy (ART) is widely used to manage HIV due to its efficacy and affordability. However, its potential adverse effects on liver and renal functions remain significant concerns, particularly in resource‐limited settings such as Vietnam.
Thanh Nguyen Ai Tran, Phuong Thi Be Nguyen, Yen Thi Hoai Phan, Hau Phuc Le, Hong Anh Tran, Chieu Nhu Ngoc Nguy, Tung Ba Nguyen, Vu Hoang Anh Nguyen, Suraiya Saleem   +8 more
wiley   +1 more source

Neurovascular hamartoma of the tongue: Case report and current concepts

Advances in Oral and Maxillofacial Surgery
Neurovascular hamartoma (NVH) is a hamartomatous proliferation of neural, perineural, and vascular tissue, typically solitary, superficial, or deep. While odontomas are the most common hamartomas in the head and neck region, NVH is a rare pathology in ...
Estévez-González Gabriel Levi, Gómez-Hernandez Andrew Kevin, Salgado-Chavarría Fabiola, Cruz-Tapia Roberto Onner, Nuñez-Toro Erick   +4 more
doaj   +1 more source