Results 31 to 40 of about 1,766,877 (333)

Quantum Communication Technology

open access: yes, 2010
Quantum communication is built on a set of disruptive concepts and technologies. It is driven by fascinating physics and by promising applications. It requires a new mix of competencies, from telecom engineering to theoretical physics, from theoretical ...
Gisin, Nicolas, Thew, Rob
core   +3 more sources

Microwave workshop for windows [PDF]

open access: yes, 1995
This paper describes Microwave Workshop for Windows, a suite of three programs which have been designed in the Division of Physics in the University of Portsmouth to perform the dual function of teaching aid and providing a circuit‐design utility in the ...
White, Colin
core   +2 more sources

Research on broadband vibration control mechanism of an acoustic black hole beam with an adjustable stiffness internal boundary

open access: yesiScience
Summary: The acoustic black hole (ABH), as a vibration control technology, provides a way for vibration and noise control by realizing the aggregation and dissipation of vibration energy through the design of special geometric structures.
Tao Wang   +3 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Increasing the robustness and crack resistivity of high-performance carbon fiber composites for space applications

open access: yesiScience, 2021
Summary: The endeavors to develop manufacturing methods that can enhance polymer and composite structures in spacecraft have led to much research and innovation over many decades. However, the thermal stability, intrinsic material stress, and anisotropic
Michal Delkowski   +3 more
doaj   +1 more source

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

open access: yesFEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

A self-powered and self-sensing knee negative energy harvester

open access: yesiScience
Summary: Wearable devices realize health monitoring, information transmission, etc. In this study, the human-friendliness, adaptability, reliability, and economy (HARE) principle for designing human energy harvesters is first proposed and then a ...
Daning Hao   +6 more
doaj   +1 more source

Engineering physics of superconducting hot-electron bolometer mixers

open access: yes, 2017
Superconducting hot-electron bolometers are presently the best performing mixing devices for the frequency range beyond 1.2 THz, where good quality superconductor-insulator-superconductor (SIS) devices do not exist.
Klapwijk, T. M., Semenov, A. V.
core   +2 more sources

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

Surface States of Topological Insulators [PDF]

open access: yes, 2012
We develop an effective bulk model with a topological boundary condition to study the surface states of topological insulators. We find that the Dirac point energy, the band curvature and the spin texture of surface states are crystal face-dependent. For
Kane, C. L., Mele, E. J., Zhang, Fan
core   +4 more sources

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