1,722,086 research outputs found
Liberté pour Li Shuang !
No full textLiberté pour Li Shuang !. In: Cahiers du féminisme, n°18, 1981. Réunies à Paris 700 femmes exigent : «L ’arrêt des licenciements, les 35H maxi, l’ouverture de crèches gratuites...» (décembre 1981 - janvier 1982) p. 1
Attentional deployment modulates regret_control context
No full textThis dataset includs the data of control contex
Decision-making under time pressure
No full textThis dataset includes the EEG rawdata of decision-making with and without time pressure in human participants
Neural computation_EEG
No full textThis dataset is the raw data of the EEG experiment, including EEG recordings and behavioral dat
Attentional deployment modulates regret_attentional deployment context
No full textThis dataset includs the data of attentional deployment contexts
FIGURES 2–7 in Kryptosega Kimsey, 1986 (Hymenoptera, Chrysididae) is newly recorded genus from Oriental Region, with description of one new species
No full textFIGURES 2–7. Kryptosega sinensis, ♂, holotype. 2. Antenna; 3. Head, frontal view; 4. Head and mesosoma, dorsal view; 5. Head and mesosoma, lateral view; 6. Fore and hind wings; 7. Propodeum, dorsal view.Published as part of Li, Shuang-Shuang & Xu, Zai-Fu, 2016, Kryptosega Kimsey, 1986 (Hymenoptera, Chrysididae) is newly recorded genus from Oriental Region, with description of one new species, pp. 73-76 in Zootaxa 4121 (1) on page 75, DOI: 10.11646/zootaxa.4121.1.5, http://zenodo.org/record/26207
Kryptosega Kimsey, 1986 (Hymenoptera, Chrysididae) is newly recorded genus from Oriental Region, with description of one new species
No full textLi, Shuang-Shuang, Xu, Zai-Fu (2016): Kryptosega Kimsey, 1986 (Hymenoptera, Chrysididae) is newly recorded genus from Oriental Region, with description of one new species. Zootaxa 4121 (1): 73-76, DOI: 10.11646/zootaxa.4121.1.
Design of High-Inclination Artificial Frozen Orbits Around Europa
No full textHigh-inclination near-circular orbits are valuable for Europa’s global observation. However, the eccentricity drifts due to Jovian third-body gravity and Europa’s nonspherical gravity perturbations. Previous studies have concentrated on long lifetime orbits, but seldom maintained the orbits with low-thrust propulsion. In this work, we propose methods for designing near-circle and high-inclination artificial frozen orbits around Europa. The design method is separated into two parts. First, based on an analytical method, two frozen strategies are developed for maintaining the Europa probe, which use indirect and direct neutralization of the eccentricity drift, respectively. The analysis of the evolution characteristic of the artificial frozen orbit is presented. Second, through a semi-analytical approach, fuel-optimal low-thrust strategies which satisfy the proposed frozen strategies are derived to generate the artificial frozen orbits. Numerical simulations show that these artificial orbits have the ability of achieving the frozen behavior, with acceptable required velocity increments. The low-cost control strategies are also obtained
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