Results 141 to 150 of about 163,678 (245)

Tailoring electron bunch quality in laser-plasma acceleration: a comparative study of Bessel-Gaussian and Gaussian laser profiles under variable plasma density geometries. [PDF]

Sci Rep
Khooniki R, Fallah R, Khorashadizadeh SM, Niknam AR.   +3 more
europepmc   +1 more source

Compact free‐electron lasers as enablers of beyond‐6G and quantum communication systems

Journal of Synchrotron Radiation, Volume 33, Issue 3, Page 818-824, May 2026.
Compact free‐electron lasers are investigated as scalable, high‐coherence light sources capable of enabling beyond‐6G and quantum communication systems through ultrafast data rates, wide spectral tunability, and high signal‐to‐noise performance.Free‐electron lasers (FELs) are disruptive light sources that offer ultrashort pulses, wide spectral ...
Thair Abdulkareem Khalil Al-Aish, Hanady Amjed Kamil   +1 more
wiley   +1 more source

Floquet angular modulation for 6G systems. [PDF]

Sci Rep
Hamdi B, Aloui R, Aldalbahi AS, Delleji T, Mhatli S, Aguili T, Llamas-Garro I, Siala A.   +7 more
europepmc   +1 more source

Regional cerebellar structural deficits distinguish psychostimulant‐free ADHD youth with and without familial risk for bipolar I disorder: a cross‐sectional morphometric analysis

Journal of Child Psychology and Psychiatry, Volume 67, Issue 5, Page 766-776, May 2026.
Background Although attention‐deficit/hyperactivity disorder (ADHD) with familial risk for bipolar I disorder (BD) may represent a more severe illness conferring greater risk for developing BD, associated neurostructural substrates remain poorly understood.
Biqiu Tang, L. Rodrigo Patino, Wenjing Zhang, Su Lui, Melissa P. DelBello, Robert K. McNamara   +5 more
wiley   +1 more source

Friction-Induced Thermal Effects in an FGM Layer in Contact with a Homogeneous Layer. [PDF]

Materials (Basel)
Topczewska K.
europepmc   +1 more source

Maximally dissipative and self‐adjoint extensions of K$K$‐invariant operators

Bulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.
Abstract We introduce the notion of K$K$‐invariant operators, S$S$, in a Hilbert space, with respect to a bounded and boundedly invertible operator K$K$ defined via K∗SK=S$K^*SK=S$. Conditions such that self‐adjoint and maximally dissipative extensions of K$K$‐invariant symmetric operators are also K$K$‐invariant are investigated.
Christoph Fischbacher, Bart Rosenzweig, Jonathan Stanfill   +2 more
wiley   +1 more source

Littlewood, Paley and almost‐orthogonality: a theory well ahead of its time

Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract The classic paper by Littlewood and Paley [J. Lond. Math. Soc. (1), 6 (1931), 230–233] marked the birth of Littlewood–Paley theory. We discuss this paper and its impact from a historical perspective, include an outline of the results in the paper and their subsequent significance in relation to developments over the last century, and set them ...
Anthony Carbery
wiley   +1 more source

Closed-Form Approximations of Range Mutual Information for Integrated Sensing and Communication Systems. [PDF]

Sensors (Basel)
Lai Z, Luo H, Wang Y, Zhang Y, Jin B.
europepmc   +1 more source

Which singular tangent bundles are isomorphic?

Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract Logarithmic and b$ b$‐tangent bundles provide a versatile framework for addressing singularities in geometry. Introduced by Deligne and Melrose, these modified bundles resolve singularities by reframing singular vector fields as well‐behaved sections of these singular bundles.
Eva Miranda, Pablo Nicolás
wiley   +1 more source

Miniaturized optically generated Bessel beam ultrasound for volumetric transcranial brain stimulation. [PDF]

Sci Adv
Li Y, Chen G, Oliveira TR, Todd N, Zhang YZ, Marar C, Zheng N, Lan L, McDannold N, Cheng JX, Yang C.   +10 more
europepmc   +1 more source