Results 41 to 50 of about 685,996 (298)

Phonon Engineering in Ultrathin Sn Films

open access: yesAdvanced Materials Interfaces, EarlyView.
When embedded in multilayer structures, ultrathin Sn layers demonstrate strongly modified vibrational density of states (VDOS). This allows engineering a drastic increase of the Lamb‐Mössbauer factor fLM$f_{\text{LM}}$ and thereby of the cross‐section for coherent excitation of the ultrasharp nuclear resonance of 119Sn$^{119}{\rm Sn}$. This enables the
Sven Velten   +9 more
wiley   +1 more source

The stressing effect of shearing in mid-pregnancy of Zandi ewes on live weight and body sizes of twin lambs at the time of birth

open access: yesJournal of the Indonesian Tropical Animal Agriculture, 2023
This research investigated the effect of stress of mid-pregnancy shorn Zandi ewes on the live birth weight and body sizes of twin lambs. A total of 96 Zandi ewes, confirmed pregnant with twins, were randomly allocated on day 80 of pregnancy into 4 groups,
M. Kalhor, N. Eila, A. Zarei, A. Noshary
doaj   +1 more source

Laser Cooling of two trapped ions: Sideband cooling beyond the Lamb-Dicke limit [PDF]

open access: yes, 1998
We study laser cooling of two ions that are trapped in a harmonic potential and interact by Coulomb repulsion. Sideband cooling in the Lamb-Dicke regime is shown to work analogously to sideband cooling of a single ion.
A. Steane   +40 more
core   +2 more sources

Large‐Scale and Cost‐Effective Fabrication of Ultra‐Thin, Biodegradable Microelectrode Arrays and Pressure Sensors Using Laser Micromachining

open access: yesAdvanced Materials Technologies, EarlyView.
A mask‐free and cost‐effective UV‐pico‐second laser‐based microfabrication method is proposed to fabricate large‐area biodegradable microelectrode arrays and pressure sensors. These devices demonstrate low impedance, good conformability, excellent biocompatibility, and rapid degradation, providing a new route for next‐generation transient electronics ...
Bhavani Prasad Yalagala   +5 more
wiley   +1 more source

Near-wall Lamb vector and its temporal–spatial evolution in the viscous sublayer of wall-bounded flows

open access: yesAIP Advances, 2022
This paper gives the relation between the Lamb vector and fundamental surface quantities in the vicinity of a no-slip flat wall using the Taylor-series expansion solution of the Navier–Stokes equations for incompressible viscous flow.
Tao Chen, Tianshu Liu
doaj   +1 more source

Measurement of fecal T3 metabolite levels in sheep: Analytical and biological validation of the method

open access: yesFrontiers in Veterinary Science, 2022
IntroductionBiological sample collection from wild and farms animals is often associated with difficulties related to the handling and restraint procedures, and most of the time it could induce stress, altering the welfare and physiological homeostasis ...
Valeria Pasciu   +4 more
doaj   +1 more source

Lamb Shift for static atoms outside a Schwarzschild black hole

open access: yes, 2010
We study, by separately calculating the contributions of vacuum fluctuations and radiation reaction to the atomic energy level shift, the Lamb shift of a static two-level atom interacting with real massless scalar fields in the Boulware, Unruh and Hartle-
Yu, Hongwei, Zhou, Wenting
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Ruminations Regarding Characteristics of Quintessential Adult Communicative Play

open access: yesBehavioral Sciences
Greene and Pruim’s (2023) theory of adult communicative play (TACP) was developed as an effort to address considerations of: (a) pattern and novelty, (b) interpersonal connection, and (c) enjoyment as they pertain to adult conversational activities by ...
John O. Greene
doaj   +1 more source

Two-Loop Effects and Current Status of the 4He+ Lamb Shift

open access: yes, 2007
We report on recent progress in the treatment of two-loop binding corrections to the Lamb shift, with a special emphasis on S and P states. We use these and other results in order to infer an updated theoretical value of the Lamb shift in 4He+.Comment ...
Beier P.J.   +31 more
core   +1 more source

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