搜索结果: 1-15 共查到“理学 antenna”相关记录26条 . 查询时间(0.124 秒)
Characterization of the Light Harvesting Antennas of Photosynthetic Purple Bacteria by Stark Spectroscopy:I.LH1 Antenna Complex and the B820 Subunit from Rhodospirillum rubrum
ABCD rule accessory nipples acral acrolentiginous actinic keratosis alopecia amelonotic angiokeratoma angioma arborizing blood vessels
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2016/5/23
We present low-temperature Stark measurements on the core light-harvesting complex 1 (LH1) of purple bacteria and the B820 subunit derived from LH1, which is a protein bound Bchl a dimer. It was found...
Stark Effect Spectroscopy of Carotenoids in Reaction Center and Antenna Complexes from Photosynthetic Bacteria
Stark effect Electric field effect Carotenoid Carotenoid bandshift
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2016/5/23
The effects of electric fields on the absorption spectra of the carotenoids spheroidene and spheroidenone in photosynthetic antenna and reaction center complexes (wild-type and several mutants) from p...
Large Protein-Induced Dipoles for a Symmetric Carotenoid in a Photosynthetic Antenna Complex
Bacterial Proteins Carotenoids Cell Membrane Chemistry, Physical Macromolecular Substances Membrane Potentials Membrane Proteins Photosynthesis Physicochemical Phenomena Rhodobacter sphaeroides Solvents Spectrum Analysis
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2016/5/23
Unusually large electric field effects have been measured for the absorption spectra of carotenoids (spheroidene) in the B800-850 light-harvesting complex from the photosynthetic bacterium Rhodobacter...
Microgravity vertical gradient measurement in the site of VIRGO interferometric antenna (Pisa plain, Italy)
Microgravity vertical gradient near surface geology gravity modeling
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2015/9/1
The site of the European Gravitational Observatory (EGO) located in the countryside near Pisa (Tuscany, Italy) was investigated by a microgravity vertical gradient (MVG) survey. The EGO site houses th...
Utilization of antenna arrays in HF systems
Ionospheric channel MIMO architecture array processing HF channel characterization superresolution direction findingIonosphere monitoring data validation monitoring techniques campaigns dissemination
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2015/8/28
Different applications of radio systems are based on the implementation of antenna arrays. Classically, radio direction finding operates with a multi channel receiving system connected to an array of ...
Improved geodetic European very-long-baseline interferometry solution using models of antenna gravitational deformation
very long baseline interferometry antenna deformation signal path variation crustal deformation height bias
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2015/8/28
Very-long-baseline interferometry (VLBI) is used for establishing global geodetic networks where the coordinates attain a 1-mm level of precision. Technique-dependent bias can degrade the VLBI positio...
Antenna array pattern synthesis via convex optimization
Antenna array model numerical geometric shape elements value
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2015/8/11
We show that a variety of antenna array pattern synthesis problems can be expressed as convex optimization problems, which can be (numerically) solved with great efficiency by recently developed inter...
Antenna-coupled TES bolometers for the SPIDER experiment
cosmic microwave background polarization millimeter wave instrumentation
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2014/12/23
SPIDER is a proposed balloon-borne experiment designed to search for the imprints of gravity waves on the polarization of the cosmic microwave background radiation. The required wide frequency coverag...
Transceiver Design for Multi-user Multi-antenna Two-way Relay Cellular Systems
Two-way relay multi-user multi-antenna transceiver cellular systems
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2012/6/21
In this paper, we design interference free transceivers for multi-user two-way relay systems, where a multi-antenna base station (BS) simultaneously exchanges information with multiple single-antenna ...
The DoF Region of the Multiple-Antenna Time Correlated Interference Channel with Delayed CSIT
The DoF Region the Multiple-Antenna Time Interference Channel Delayed CSIT Information Theory
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2012/4/16
We consider the time-correlated multiple-antenna interference channel where the transmitters have (i) delayed channel state information (CSI) obtained from a latency-prone feedback channel as well as ...
Precoder Design for Multi-antenna Partial Decode-and-Forward (PDF) Cooperative Systems with Statistical CSIT and MMSE-SIC Receivers
Precoder Design Multi-antenna Partial Decode-and-Forward Cooperative Systems Statistical CSIT MMSE-SIC Receivers
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2012/2/29
Cooperative communication is an important technology in next generation wireless networks. Aside from conventional amplify-and-forward (AF) and decode-and-forward (DF) protocols, the partial decode-an...
Photon noise limited radiation detection with lens-antenna coupled Microwave Kinetic Inductance Detectors
Photon noise limited radiation Microwave Kinetic Inductance Detectors
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2011/10/13
Microwave Kinetic Inductance Detectors (MKIDs) have shown great potential for sub-mm instrumentation because of the high scalability of the technology. Here we demonstrate for the first time in the su...
On Transmit Antenna Selection for Multiuser MIMO Systems with Dirty Paper Coding
Transmit Antenna Selection Multiuser MIMO Systems Dirty Paper Coding
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2011/1/19
Abstract—In this paper, we address the transmit antenna selection in multi-user MIMO systems with precoding. The optimum and reduced complexity sub-optimum antenna selection algorithms are introduced.
Stochastic Control of Event-Driven Feedback in Multi-Antenna Interference Channels
Stochastic Control of Event-Driven Feedback Multi-Antenna Interference Channels
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2011/2/22
Spatial interference avoidance is a simple and effective way of mitigating interference in multi-antenna wireless networks.
On Two-way Communications for Cooperative Multiple Source Pairs Through a Multi-antenna Relay
Two-way Communications Cooperative Multiple Source Pairs Multi-antenna Relay
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2011/1/20
We study amplified-and-forward (AF)-based twoway relaying (TWR) with multiple source pairs, which are exchanging information through the relay.