Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Kristian Helmerson"'
Accurate Low Complexity Quadrature Angular Diversity Aperture Receiver for Visible Light Positioning
Publikováno v:
Sensors, Vol 24, Iss 18, p 6006 (2024)
Despite the many potential applications of an accurate indoor positioning system (IPS), no universal, readily available system exists. Much of the IPS research to date has been based on the use of radio transmitters as positioning beacons. Visible li
Externí odkaz:
https://doaj.org/article/1c393f592d5b43cf85251ad873c45eab
Autor:
Joseph E Reiner, Rani B Kishore, Barbara C Levin, Thomas Albanetti, Nicholas Boire, Ashley Knipe, Kristian Helmerson, Koren Holland Deckman
Publikováno v:
PLoS ONE, Vol 5, Iss 12, p e14359 (2010)
BACKGROUND: Mitochondrial DNA (mtDNA) genome mutations can lead to energy and respiratory-related disorders like myoclonic epilepsy with ragged red fiber disease (MERRF), mitochondrial myopathy, encephalopathy, lactic acidosis and stroke (MELAS) synd
Externí odkaz:
https://doaj.org/article/af224a8bc73c40ad83fa8fd59e6f53d6
Publikováno v:
Clinical Oncology and Research. :1-5
We know that T-cell activation and effector function is integral for cancer cell destruction in immunotherapeutic treatment in oncology. The fundamental behaviour of T-cells at the time of activation is poorly understood but is likely to be central t
Autor:
Guanyu Liu, Jiaou Wang, Si Xiao, Chen Liu, Kristian Helmerson, Yemin Dong, Haoran Mu, Lei Li, Sudhakara Reddy Bongu, Jincheng Zhuang, Yi Du, Xiaozhi Bao, Yani Liu, Qiaoliang Bao, Yamin Huang
Publikováno v:
Advanced materials (Deerfield Beach, Fla.). 33(32)
Bulk germanium as a group-IV photonic material has been widely studied due to its relatively large refractive index and broadband and low propagation loss from near-infrared to mid-infrared. Inspired by the research of graphene, the 2D counterpart of
Autor:
Sudhakara Reddy Bongu, Guanyu Liu, Xiaozhi Bao, Jiaou Wang, Yi Du, Yani Liu, Jincheng Zhuang, Kristian Helmerson, Si Xiao, Yemin Dong, Haoran Mu, Lei Li, Qiaoliang Bao, Yamin Huang, Chen Liu
Publikováno v:
Advanced Materials. 33:2170247
Publikováno v:
Optics Communications. 490:126943
To optimize the performance of visible light communication (VLC) systems it is important that a VLC receiver has both a carefully designed field of view (FOV) which excludes light from unwanted directions and optical filtering to block unwanted wavel
Autor:
Marc Currie, D. Kurt Gaskill, Jimmy C. Kotsakidis, Amadeo L. Vázquez de Parga, Kristian Helmerson, Michael S. Fuhrer, Quianhui Zhang
Publikováno v:
Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia
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We have studied the ambient air oxidation of chemical vapor deposition (CVD) grown monolayers of the semiconducting transition metal dichalcogenide (S-TMD) WS$_{2}$ using optical microscopy, laser scanning confocal microscopy (LSCM), photoluminescenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7970413caf90107e8b1506d05267447
http://arxiv.org/abs/1906.00375
http://arxiv.org/abs/1906.00375
Autor:
C. J. Billington, Kristian Helmerson, Andrew J. Groszek, Shaun P. Johnstone, Philip T. Starkey, Tapio Simula
Publikováno v:
Science (New York, N.Y.). 364(6447)
Clustering vortices Many-body systems generally become more disordered as more energy is pumped into them. A curious exception to this rule was predicted in the context of turbulent flow by the physical chemist Lars Onsager. He suggested that the ent
Publikováno v:
Physical Review A. 97
We derive a general and exact equation of motion for a quantised vortex in an inhomogeneous two-dimensional Bose-Einstein condensate. This equation expresses the velocity of a vortex as a sum of local ambient density and phase gradients in the vicini
Publikováno v:
Physical review letters. 120(3)
We introduce a new method of statistical analysis to characterise the dynamics of turbulent fluids in two dimensions. We establish that, in equilibrium, the vortex distributions can be uniquely connected to the temperature of the vortex gas, and appl