Спутник ДЗЗ. Swarm B. [Редактировать]

22 ноября 2013 года в 16:02 по московскому времени (12:02 UTC) с космодрома «Плесецк» ракетой-носителем «Рокот» с разгонным блоком «Бриз-КМ» осуществлён запуск трёх европейских спутников Swarm A, Swarm B и SwarmC. Swarm – является очередным проектом Европейского космического агентства, предусматривающим создание серии спутников Earth Explorer, задача которых – изучение важнейших параметров Земли и их изменений под воздействием деятельности человека. Космические аппараты предназначены для измерения магнитных сигналов, исходящих из ядра, мантии, коры, океанов, ионосферы и магнитосферы Земли.

Дополнительные наименования

#НаименованияПоиск в новостяхПоиск в документах
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Дополнительная классификация

#Наименования
1Страна оператор(владелец) - Европа
2Тип оператора(владельца) - государственный
3Тип орбиты - НОО
4Страна производитель - Франция
5Все спутники ДЗЗ

Технические характеристики

#ХарактеристикаЗначение
1Масса, кг468

Характеристики орбиты

#ХарактеристикаЗначение
1Наклонение, град87.8
2Апогей, км523.5
3Перигей, км518.3
4Период, минут94.9
5Длинный диаметр эллипса, км6891

Пусковые характеристики

#ХарактеристикаЗначение
1Код NSSDC2013-067A

Информация об удачном запуске

#ХарактеристикаЗначение
1Дата пуска2013-11-22 at 12:02:00 UTC
2Полезная нагрузка 1xSwarm B
3Полезная нагрузка 1xSwarm A
4Полезная нагрузка 1xSwarm C
5Ракета-носитель 1xРокот

Найдено 1000 документов по запросу «Swarm B». [Перейти к поиску]


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0.71/5
... address this lack of realistic swarm statistics by providing our measurement results revealing real live BitTorrent swarm characteristics. 1 Introduction Overlay traffic resulting.... We have measured the swarm size, swarm dynamics in terms of number... example that real-life BitTorrent swarm distributions are highly skewed (i.e., 90... of the swarm holds a large fraction of the whole swarm and the... of a swarm and the AS-fraction of a swarm (i.e., x-largest AS of a swarm – #peers in AS/#peers in swarm) follows... of forming a larger cluster within a swarm, and give a probabilistic approach how... downloading the file. For each swarm, a centralized component, the so-called... in each experiment the swarm size, the swarm dynamics, and the AS... in the swarm at a single time instant, i.e. a snapshot of the swarm. In... time dynamics of a swarm, several samples of the swarm size and the... a decimal number, while a snapshot of a swarm always returns an integer value... metho#torrents index criteria content swarm dology TV 96 samples website... 24 hours ing observed swarm size swarm size swarm size meas. date Jun... AS topology May 2009 swarm size swarm size swarm size AS topology Mar... X ∼ BIN O(n, q), when the tracker of a swarm of size N is requested n times... X ∼ BIN O(b, q), when the tracker of a swarm of size N is requested b times... observing the AS topology of a swarm. Figure 2 shows the cumulative distribution... where the results for specific swarm types contradict the accepted knowledge.... 0.4 0.3 Pop. 0.2 0.1 0 0 10 1 2 10 10 3 10 swarm size Figure 3: CDF of the... in a swarm. Each dot represents (#seeder,#leecher) of an individual swarm for... for the topological characteristics of a swarm, which also depend on the content shared. In general, the swarm size distribution is heterogeneous with.... The result is a fully meshed swarm. Consequently, accepted solutions using Biased... 0.73 0.65 4.2 Time-Dynamics within a Swarm While a snapshot of the number... that a swarm can be treated as static. The population of a swarm varies... [h] 60 70 80 Figure 5: Total swarm size of exemplary swarms (measurement.... While swarm D), which is 13 standard deviation si of swarm size measurement (mi, si) theoretical minimum 1 10 0 10 −1 10 0 1 2 3 4 5 6 7 average swarm... the size of swarm i vs. average size of swarm i for measurement experiment... peer population, the size of swarm C) exhibits a periodic behavior. We attribute... South America, and therefore the swarm population increases during the daytime... regions and decreases again afterwards. Swarm G), sharing a German movie, shows a similar... of the peer population of swarm B) is a superposition of a continually increasing... like for swarms C) and G). While swarm D) distributes content that seems not... seeder and leecher population of a swarm distributing a German version of OpenOffice... deviation si for a given average swarm size mi ∈ [a; a + 1[ is obtained when... locality-awareness much better than a swarm that is highly dispersed topologically...[ 0.04 [2000; ∞[ 0.01 1 0.9 0.8 0.7 CDF 0.6 0.5 increasing swarm size 0.4 0.3 0.2 0.1 0 0 10 1 2 10 10 average... size, cf. Table 3. 1 0.9 0.8 0.7 CDF 0.6 0.5 increasing swarm size 0.4 0.3 0.2 0.1 0 0 1 10 10 average number... data with. 17 1 0.9 0.8 0.7 CDF 0.6 increasing swarm size 0.5 0.4 0.3 0.2 0.1 0 −1 0 10 10 coefficient of... AS’s per swarm Figure 13: Number of AS’s per swarm (Mus.,Mov.). Another important characteristic of a swarm is the... of the swarm in single AS’s. For the largest swarm A, the most... swarm Figure 16: Relative number of peers in a swarm’s top AS (Reg.). Swarm.... 4.2 that the peer populaton within swarm D remains almost constant over time... swarm distributes content that seems not to be preferred regionally. However, swarm... largest AS of a swarm CDF 0.6 0.5 0.4 top AS of a swarm 0.3 0.2 0.1 0 0 0.05 0.1 0.15 0.2 0.25... the suitability of the according swarm for locality promotion, something previously... mechanism under study – these relevant swarm characteristics have to be considered... to get a snapshot of the swarm. Application layer traffic optimization mechanisms... peers currently participating in the swarm. However, the problem remains that... for this observation regarding the swarm Ele. (1) The tracker always returns... the k-th largest AS in swarm i for k = 1, 2, · · · , n. Then, we compute the... number n of different AS’s in a swarm vs. the coefficient of determination... number n of different AS’s in a swarm vs. the coefficient of determination... traffic optimization mechanisms. Considering the swarm statistics according to the offered... topology of a swarm, i.e., the AS affiliations of peers within a swarm. However, also the observed number of different AS’s of a swarm increases significantly with the swarm size. As a result... number of different AS’s within a swarm follows a log-normal distribution. Further... significant fractions of the total swarm, applying locality awareness here may...



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0.56/5
... algorithm; binary space partitioning; BSP; swarm intelligence. Reference to this paper... benefits. In this paper, a novel swarm intelligence algorithm, namely history-driven... In standard firefly algorithm, the swarm consists of a population of the... algorithm In this section, a novel swarm intelligence algorithm, namely HdSFA is... future. HdSFA is a real-coded swarm intelligence algorithm. For a D-dimensional landscape... different populations – discoverer and tracker swarm – and also two different explicit..., change identification, discoverer and tracker swarm processing and also fine 6 B. Nasiri...() 5 call change_identification() 6 /*----discoverer swarm process begin------*/ 7 if discoverer swarm is active then...(Discoverer) 10 call Discoverer_Convergence_Checking() discoverer swarm is configured somehow to explore... and efficiently. Once the discoverer swarm converged to a local optima, the... tracker swarm, and the discoverer swarm should be re-initialised. The tracker swarm... first. Specie_identification() Algorithm 6 input: [tracker swarm sw, rexcl] 1 2 begin Calculate distance... if 4 12 /*------ discoverer swarm process end------*/ 5 13 /*------ tracker swarm process begin------*/ Create... one specie. 14 foreach active swarm si in tracker S do 6 Return... 17 call Specie_Freezing() 18 /*------ tracker swarm process end------*/ 19 call fine_Tuning...)old then 2 Initialise the discoverer swarm Sdiscoverer = [xi] 7 /*------ change happened ------*/ 3 for...-term memory. 4 Initialise the tracker swarm Stracker = [xi] 5 end 9 Reinitialise short... Activate the discoverer swarm. 12 foreach Firefly i in discoverer swarm F do 7 13... all the fireflies in tracker swarm by adding a random value to the GBestPosition of each swarm between [-Vlength*P, Vlength*P] 15 f(xi... firefly by inspiration from particle swarm optimisation. 1 foreach firefly I in SW 3 1 Algorithm 10 discovererConvergenceChecking() Input: [swarm sw] 1 7 end for end for... swarm process if this swarm is active in the environment. The discoverer swarm process includes three actions including swarm moving, exclusion and convergence checking. The swarm moving, as... the discoverer swarm to the tracker swarm 4 re-initialise the discoverer swarm 5 6 end end Based on Algorithm 10, the discoverer swarm is... swarm, the m best fireflies in it will move to the tracker swarm and the discoverer swarm will be re-initialised. After discoverer swarm process, the tracker swarm will begin by swarm moving, freezing and fine-tuning process. The swarm moving for the tracker swarm uses the same algorithm as discoverer swarm...() 1 2 begin foreach specie i in tracker swarm if (f(Gbesti)t–3–f(Gbesti)t) < rconv) or... number of fireflies in discoverer swarm is 10 and in the... each species in the tracker swarm. Efficiency of the proposed algorithm.... Blackwell, T. and Branke, J. (2004) ‘Multi-swarm optimization in dynamic environments’, Applications... swarms for dynamic optimization problems’, Swarm Intelligence, pp.193–217. Branke.... (2011) ‘Enhanced speciation in particle swarm optimization for multi-modal problems..., B. (2008) ‘Multi-strategy ensemble particle swarm optimization for dynamic optimization’, Information...) ‘A comprehensive review of firefly algorithms’, Swarm and Evolutionary Computation. Fister, I., Yang...) ‘A new particle swarm optimization algorithm for dynamic environments’, Swarm, Evolutionary, and Memetic..., A.B. and Meybodi, M.R. (2010b) ‘A hibernating multi-swarm optimization algorithm for dynamic environments..., C. and Yang, S. (2009) ‘A clustering particle swarm optimizer for dynamic optimization’, IEEE... Yang, M. (2014) ‘An adaptive multi-swarm optimizer for dynamic optimization problems..., X., Branke, J. and Blackwell, T. (2006) ‘Particle swarm with speciation and adaptation in..., L., Yang, S. and Wang, D. (2010) ‘Particle swarm optimization with composite particles in... the state of the art’, Swarm and Evolutionary Computation, Vol. 6, pp... particle swarm optimization algorithm for dynamic environments’, Advances in Swarm Intelligence, Vol... using firefly algorithm: performance study’, Swarm and Evolutionary Computation, Vol. 1, No..., S. and Li, C. (2010) ‘A clustering particle swarm optimizer for locating and tracking... al. (2012) ‘A new artificial fish swarm algorithm for dynamic optimization problems... a novel method based on particle swarm optimization’, International Journal of Artificial..., A. et al. (2013b) ‘A novel multi-swarm algorithm for optimization in dynamic environments based on particle swarm optimization’, Applied Soft Computing, Vol... dynamic environments with global changes’, Swarm and Evolutionary Computation, Vol. 18... dynamic environment based on particle swarm optimization’, Proceedings of the 16th...



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0.42/5
... genetic algorithm multi-objective particle swarm optimization non-linear inverse dynamics... derivative predicted mean vote particle swarm optimization robust evolutionary algorithm simulated... input multi output strength-particle swarm optimization support vector machines transient...), ant colony optimization (ACO), particle swarm optimization (PSO), pattern recognition-based... programming, ant colony optimization, particle swarm optimization, and the bees algorithm..., ant colony optimization and particle swarm optimization are reviewed in this... learning and training methodology. 3.4 Particle swarm optimization (PSO) PSO is categorised.... 7 Flow chart for a typical particle swarm optimization (PSO) 11 Ahmad et... using strength multi-objective particle swarm optimization (S-MOPSO) was carried out... was a combination of multiobjective particle swarm optimization and strength pareto evolutionary... annealing, PSO: particle swarm optimization, S-PSO: strength-particle swarm optimization, EA: evolutionary... agents. The authors integrated a particle swarm optimizer into the central agent... Wang et al. (2012). Particle swarm optimization was used to optimize...: fuzzy rule base, PSO: particle swarm optimization, GA: genetic algorithm, MDP..., genetic algorithm, fuzzy logic, particle swarm optimization, etc. 8.1 HVAC control Ursu... using fuzzy controller and particle swarm optimization (PSO) can be used... (2012b) used multi-objective particle swarm optimization (MOPSO) to find an..., GA: genetic algorithm, PSO: particle swarm optimization, ACO: ant colony optimization...), Ant Colony Optimization (ACO), Particle Swarm Optimization (PSO), Artificial Neural Network... for global search whereas particle swarm optimization has a strong ability in... populationbased techniques (e.g. genetic algorithm). Particle swarm optimization can be categorised as...–187. Kennedy J, Eberhart R (1995). Particle swarm optimization. In: Proceedings of IEEE... with a strength multi-objective particle-swarm algorithm. Energy, 36: 5935–5943... air-conditioning system using particle swarm algorithm. Applied Energy, 86: 1589... M, Coello C (2006). Multi-objective particle swarm optimizers: A survey of the state... multi-agent control and particle swarm optimization. In: Proceedings of IEEE... (2015). Unsupervised feature selection using swarm intelligence and consensus clustering for...



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0.71/5
... on the April 2007 earthquake swarm which occurred at the vicinity... part of the Lake. The swarm initiated by small magnitude events... deformation induced by the earthquake swarm as well as its effect... during the pre- and post- swarm periods. The co-seismic pattern...: SAR interferometry, ground deformation, earthquake swarm, Trichonis Lake, Greece Περίληψη Ο σκοπός της παρούσας μελέτης είναι o εντοπισμός της παραμόρφωση του εδάφους στην ευρύτερη περιοχή της Λίμνης Τριχωνίδας (Δυτική Ελλάδα), εστιάζοντας κυρίως XLVII, No... 2007 Trichonis's Lake Basin earthquake swarm as well as its effect... 1977). Epicenters of the earthquake swarm of April 2007 are also... in April 2007 (Figure 2). The swarm began with small events, on... (the strongest events of the swarm are marked with red), modified... total 27 before the seismic swarm. The second one involves the... deformation signature of the earthquake swarm was identified. Table 2 - List of... examined for the post-earthquake swarm period. Making a first reading in... the effect of the earthquake swarm shows a different deformation pattern compared... for the seismic event (earthquake swarm) on April 2007, showing the... that determined by the earthquake's swarm on April 2007 with two...) and after (2007-2009) the swarm of earthquake in 2007, were... mechanism analysis of an earthquake swarm in Trichonis lake, western Greece... P. 2008. The April 2007 earthquake swarm near Lake Trichonis and implications... Lois A. 2010. THE APRIL 2007 SWARM IN TRICHONIS LAKE USING DATA...



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0.28/5
... of small creatures (such as a swarm of insects) might be detected... a chance of accidentally attracting a hungry swarm of ether bugs. As they... become engulfed in an insect swarm; a swarm is generally treated as a 10’x30’ cloud of insects. A swarm does not need to roll... the swarm to back off. If a character removes himself from a swarm, insects... inflicting damage for 1 round. Any swarm that has been aggravated by... character. If a character flees from a swarm and is able to leave its line of sight, the swarm will not be able to... of damage to an insect swarm. Other fire-based and coldbased attacks will also damage a swarm, and any power or device... swarm to go dormant. Smoke may be used to ward off a swarm... standard and trade languages. Insect Swarm Armour Class: 7 [12] Hit Dice... to Extreme An insect swarm is a large swarm of small insects, such... that may crawl or fly. A swarm may attack to protect a nest...



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0.37/5
... was preceded by a 2.5 hour long swarm of earthquakes. A volcanic plume was... a central volcano and a transecting fissure swarm (Figure 1.2). Out of 30 volcanic... the volcanoes prior to eruptions. A swarm of earthquakes indicating magma ascent... May to June 1994 earthquake swarm (Pedersen & Sigmundsson, 2004). The maximum... with the July 1999 earthquake swarm (Sturkell et al., 2003; Pedersen... April 2009, followed by a seismic swarm of 200 events (80% with... and without an intense earthquake swarm. After the eruption had begun... preceded by an intense earthquake swarm and began as a brief subglacial... following the flank eruption was a swarm of microearthquakes which began at...:59 UTC (Figure 4.13). The swarm gained intensity during the next... at the beginning of the swarm at 22:56 UTC on... volcano. However, another deep seismic swarm of higher intensity, at 20... before the eruption. The seismic swarm (~200 events) that occurred in...:59 UTC an intense seismic swarm commenced, lasting over 2.5 hours. Immediately... previous week. Earthquakes: An earthquake swarm started beneath Eyjafjallajökull just...



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1.67/5
... were developed based on the swarm intelligence in nature like PSO... Firefly algorithm iteratively, there is a swarm of m agents (fireflies) and x represents...



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... is also true for particle swarm optimization. This paper propose a hybrid... Firefly algorithm iteratively, there is a swarm of m agents (fireflies) and xi... to a special case of particle swarm optimization. Besides, if absorption coefficient...



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... between the launch of the Swarm satellites (in November 2013) and... provided prompt access to the Swarm satellite measurements, including detailed documentation.../missions/ esa-operational-eo-missions/swarm). This allowed the teams producing... use the Page 5 of 19 Swarm data and helped IGRF-12... for providing access to the Swarm L1b data. E. Canet acknowledges the... et exploitation de la mission Swarm.’ W. Kuang and A. Tangborn were funded... for IGRF-12 based on Swarm data and inverse geodynamo modelling... vector mode on board the Swarm satellites. Earth Planets and Space... generation after 10 months of Swarm measurements, Earth, Planets and Space... (IGRF) candidate model based on Swarm’s experimental absolute magnetometer vector mode...



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0.48/5
... The Queen Bee, Carl Ewald A Swarm of Wild Bees, Albert W. Tolman... that is the great thing.” A SWARM OF WILD BEES By Albert... I knew what concentrated misery the swarm held for the man who... to get up, they would swarm over me like lightning, and... the hope of starting the swarm. A wave of unrest ran over... of my sight. But the swarm had got the benefit of... more to start the whole swarm. Lancy moved up close behind..., leaving only a vanishing scent and a swarm of infuriated bees. ”Lancy grabbed... seemed as if the whole swarm struck me at once. The... creature if I had not known.” ”A swarm of his family can make...