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Low-Resource Eclipse Attacks on Ethereum's Peer-to-Peer Network
Ethereum eclipse attacks blockchain
2018/3/9
We present eclipse attacks on Ethereum nodes that exploit the peer-to-peer network used for neighbor discovery. Our attacks can be launched using only two hosts, each with a single IP address. Our ecl...
We present eclipse attacks on bitcoin’s peer-to-peer network.
Our attack allows an adversary controlling a suffi-
cient number of IP addresses to monopolize all connections
to and from a victim bit...
Stubborn Mining: Generalizing Selfish Mining and Combining with an Eclipse Attack
cryptographic protocols Bitcoin
2015/12/24
Sel sh mining [9] is a well-known attack where a sel sh miner, under certain conditions, can gain a
disproportionate share of reward by deviating from the honest behavior.
一种Eclipse调强放疗计划优化方法在上段食管癌的应用评估
优化 治疗计划设计 调强放疗 食管癌
2016/3/22
评估一种利用Eclipse治疗计划系统的基部剂量计划进行补偿(base dose plan compensation, BDPC)的调强放疗(IMRT)计划优化方法应用于上段食管癌的可行性。方法 选择19例上段食管癌患者,设计初始IMRT计划,并分别用BDPC法和热点冷点控制(hot and cold spot control, HCSC)法进一步优化。比较两种计划的靶区覆盖、适形指数(CI)、均...
Physical parameter eclipse mapping of the quiescent disc in V2051 Ophiuchi
V2051 Oph cataclysmic variables
2014/12/26
We analyse simultaneous UBVR quiescent light curves of the cataclysmic variable V2051 Oph using the Physical Parameter Eclipse Mapping (PPEM) method in order to map the gas temperature and surface den...
Secondary eclipse scanning of HD189733b: The perspectives of mapping distant worlds
Secondary eclipse scanning HD189733b perspectives mapping distant worlds
2012/2/23
Mapping the brightness distribution of exoplanets is the next frontier for exoplanet infrared photometry studies. For tidally-locked hot Jupiters that transit and are eclipsed by their host star with ...
Measuring the Earth-Sun distance during a lunar eclipse
Measuring Earth-Sun distance lunar eclipse
2011/9/28
The classical method for measure the Earth-Sun distance is due to Aristarchus and it is based upon the measure of the angle Moon-Earth-Sun when the Moon is exactly in quadrature. Such an angle is only...
Lunar Eclipse of June, 15, 2011: Three-color umbra surface photometry
Lunar Eclipse Three-color umbra
2011/9/29
The paper contains the preliminary result description of the photometric observations of the Moon surface during the total lunar eclipse of June, 15, 2011 conducted in southern Russia and Ukraine in t...
One of the greatest discoveries of modern times is that of the expanding Universe, almost invariably attributed to Hubble (1929). What is not widely known is that the original treatise by Lema顃re (192...
The impact of the Kasatochi eruption on the Moon's illumination during the August 2008 lunar eclipse
Kasatochi Moon's illumination lunar eclipse
2011/9/14
The Moon抯 changeable aspect during a lunar eclipse is largely attributableto variations in the refracted unscattered sunlight absorbed by the terres trial atmosphere that occur as the satellite crosse...
Warm Spitzer Photometry of the Transiting Exoplanets CoRoT-1 and CoRoT-2 at Secondary Eclipse
stars planetary systems eclipses techniques photometric
2010/11/10
We measure secondary eclipses of the hot giant exoplanets CoRoT-1 at 3.6 and 4.5 μm, and CoRoT-2 at 3.6 μm, both using Warm Spitzer. We find that the Warm Spitzer mission is working very well for exop...
System parameters, transit times and secondary eclipse constraints of the exoplanet systems HAT-P-4, TrES-2, TrES-3 and WASP-3 from the NASA EPOXI Mission of Opportunity
planetary systems — eclipses — stars individual (HAT-P-4
2010/11/12
As part of the NASA EPOXI Mission of Opportunity, we observed seven known transiting extrasolar planet systems in order to construct time series photometry of extremely high phase coverage and precisi...
System Geometries and Transit / Eclipse Probabilities
System Geometries Transit / Eclipse Probabilities
2010/11/11
Transiting exoplanets provide access to data to study the mass-radius relation and internal structure of extrasolar plan-ets. Long-period transiting planets allow insight into planetary
environments ...
Satellite Observation of the Umbra of the Moon during the Total Solar Eclipse on July 22, 2009
Satellite Observation the Umbra of the Moon the Total Solar Eclipse July 22, 2009
2010/11/24
Satellite Observation of the Umbra of the Moon during the Total Solar Eclipse on July 22, 2009。
Geophysical Variations During the Total Solar Eclipse in 2006 in Turkey
total solar eclipse gravity measurements magnetic measurements power spectrum low pass filtering
2011/6/28
It has been observed that some geophysical parameters could be changed during a solar eclipse. We have therefore measured gravity and magnetic fields during solar eclipses. We also measured the gravit...