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322篇 您的检索式:作者名="Urakawa"
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1Rendezvous to asteroid with highly uncertain ephemeris: Hayabusa2’s Ryugu-approach operation result显示文摘This paper describes the guidance and navigation technique used by Hayabusa2 for the asteroid rendezvous operation to reach Ryugu.The operation results,including the achieved guidance and navigation performance,are also summarized.Multiple assessment and navigation teams worked closely to provide reliable navigation solutions with a short solution delivery cycle.Although the uncertainty of the Ryugu’s ephemeris was considerable before Hayabusa2’s arrival,a combination of radiometric-optical hybrid navigation and a stochastic-constrained optimum guidance method was able to achieve an accuracy of less than 100 m and 1 cm/s,and the arrival was precisely timed.Yuichi Tsuda Hiroshi Takeuchi Naoko Ogawa Go Ono Shota Kikuchi Yusuke Oki Masateru Ishiguro Daisuke Kuroda Seitaro Urakawa Shin-ichiro Okumura Hayabusa2 Project Team 2020Astrodynamics2020,4,2:2
2Dynamic heterogeneity in a miscible poly(vinyl aeetate)/poly(ethylene oxide) blend 显示文摘URAKAWA O UJII T ADACHI K 2006Journal of Non-crystalline Solids2006,3,52:1
3Klotho converts canonical FGF receptor into a specific receptor for FGF23显示文摘Urakawa I Yamazaki Y Shimada T 2006Nature2006,444,7120:1
4Circulating levels of active ghrelin is associated with abdominal adiposity, hyperinsulinemia and insulin resistance in patients with type 2 diabetes mellitus 显示文摘Katsuki A Urakawa H Gabazza EC 2004Eur J Endocrinol2004,151,5:1
5Preparation of photoseneitive colorproducing microcapsules utilizing in situ polymerization method显示文摘Sawada K Urakawa H 2005Dyes and Pigments2005,65,:1
6Purification and characterization of the major group-specific core antigen VP7 of bluetongue virus synthesized by a recombinant baculovirus 显示文摘Oldfield S Adachi A Urakawa T 1990J Gen Virol1990,71,:1
7gene transfer into hepatoma cells mediated by galactose-modified alphahelical peptides显示文摘Niidome T Urakawa M Sato H 2000Biomaterials2000,21,:1
8Ammonia oxidation kinetics determine niche separation of nitrifying Archaea and Bacteria显示文摘Martens-Habbena W Berube PM Urakawa H 2009Nature2009,461,7266:1
9Phase relationships and equations of state for FeS at high pressures and temperatures and implications for the internal structure of mars 显示文摘Urakawa S Someya K Terasak H 2004Physics of the Earth and Planetary Interiors2004,143,15:1
10Synthesis of im- munogenic, but non-infectious, poliovirus particles in insect cells by a baculovirus expression vector 显示文摘Urakawa T Ferguson M Minor P D 1989J Gen Virol1989,70,6:1
11Marek's disease virus protein kinase gene identified within the short unique region of the viral genome is not essential for viral replication in cell culture and vaccine-induced immunity in chickens 显示文摘Sakaguchi M Urakawa T Hirayama Y 1993Virology1993,195,:1
12Chain length of cationic alpha-helical peptide sufficient for gene delivery into cells显示文摘Niidome T Takaji K Urakawa M 1999Bioconjng Chem1999,10,5:1
13Aging changes in central corneal thickness显示文摘Nishiyama K Urakawa Y Okubo H 1987Nippon Ganka Gakkai Zasshi1987,91,:1
14显示文摘Hiraoka H Yamamoto Y Urakawa S Mizutani M Yamada H Inui K Karita S Goto M 2003Grassland Science2003,49,:1
1516S rDNA genotyping using PCR/RFLP (restriction fragment length poly- morphism) analysis among the family Vibrionaeeae显示文摘URAKAWA H KITA-TSUKAMOTO K OHWADA K 1997FEMS Microbiology Letters1997,152,1:1
16The clinicopathologic features of serum CA19-9 positive colorectal cancers显示文摘Ueda T Shimada E Urakawa T 1994Surg Today1994,24,:1
17Microbial diversity in marine sediments from Sagami Bay and Tokyo Bay, Japan, as determined by 16S rRNA gene analysis 显示文摘URAKAWA H KITA-TSUKAMOTO K OHWAHA K 1999Micorbiology1999,145,:1
18Klotho converts canonical FGF receptor into a specific receptor for FGF23显示文摘Urakawa I Yamazaki Y Shimada T 0,,7120:1
19Early morphological nuclear events and developmental capacity of embryos reconstructed with fetal fibroblasts at the M or G1 phase after intracytoplasmic nuclear injection in cattle显示文摘Ideta A Urakawa M Aoyagi Y 2005J Reprod Dev2005,51,2:1
20Gene transfer into hepatoma cells mediated by galactose-modified alpha-helical peptides显示文摘Niidome T Urakawa M Sato H 2000Biomaterials2000,21,17:1
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