Results 121 to 130 of about 591,139 (353)

Hybrid low-thrust transfers to eight-shaped orbits for polar observation [PDF]

, 2012
In this paper, transfers from low Earth orbit (LEO) to so-called eight-shaped orbits at the collinear libration points in the circular restricted three-body problem are investigated.
Ceriotti, Matteo, Heiligers, Jeannette, McInnes, Colin   +2 more
core  

CD44v, S1PR1, HER3, MET and cancer‐associated amino acid transporters are promising targets for the pancreatic cancers characterized using mAb

FEBS Open Bio, EarlyView.
Novel mAbs could detect cancer‐associated membrane proteins on various type of pancreatic ductal adenocarcinomas (PDAC) by flow cytometry with viable PDAC cells and by immunohistochemistry with PDAC tissues. Results of protein expression were substantiated by mRNA expression by The Cancer Genome Atlas.
Takashi Nakano, Kouki Okita, Shogo Okazaki, Soshi Yoshimoto, Sachiko Masuko, Hideki Yagi, Kazunori Kato, Yoshihisa Tomioka, Kenichi Imai, Yoichi Hamada, Kazue Masuko, Kayoko Shimada‐Takaura, Noriaki Nagai, Hideyuki Saya, Tomio Arai, Toshiyuki Ishiwata, Takashi Masuko   +16 more
wiley   +1 more source

Tipping Points of Space Debris in Low Earth Orbit

International Journal of the Commons
Global services like navigation, communication, and Earth observation have increased dramatically in the 21st century due to advances in outer space industries.
Keiko Nomura, Simon Rella, Haily Merritt, Mathieu Baltussen, Darcy Bird, Annika Tjuka, Dan Falk   +6 more
doaj   +1 more source

Impact of lunar oxygen production on direct manned Mars missions [PDF]

A manned Mars program made up of six missions is evaluated to determine the impact of using lunar liquid oxygen (LOX) as a propellant. Two departure and return nodes, low Earth orbit and low lunar orbit, are considered, as well as two return vehicle ...
Tucker, William B., Young, Roy M., Jr.
core   +1 more source

Alkane biosynthesis gene expression and its increased production in recombinant cyanobacteria

FEBS Open Bio, EarlyView.
The transcription and mRNA structures of the alkane biosynthesis genes ado/aar were analysed in the representative cyanobacteria PCC 6803 and SK1‐2‐1, which produce C17H36 and C15H32, respectively. PCC 6803 transconjugants carrying these genes showed a 1.8‐ to 2.3‐fold increase in C17H36 production.
Misato Nagao, Takato Ozaki, Hirofumi Fukuda, Yu Kanesaki, Munehiko Asayama   +4 more
wiley   +1 more source

Comparison of Low Earth Orbit and Geosynchronous Earth Orbits [PDF]

The technological, environmental, social, and political ramifications of low Earth orbits as compared to geosynchronous Earth orbits for the solar power satellite (SPS) are assessed.
Drummond, J. E.
core   +1 more source

GGOS-D Integration with Low Earth Orbiters

, 2010
Within GGOS-D the attempts of determining a terrestrial reference frame have been enriched by solutions coming from the integrated approach where the whole GPS constellation in combination with the Low Earth Orbiters CHAMP and GRACE are processed together by dynamic satellite orbit adjustment delivering all relevant parameters within one step.
König, D., König, R.
openaire   +5 more sources

Hydrophobicity causes anomalous migration of cystine/glutamate antiporter SLC7A11 in SDS‐PAGE with low acrylamide concentration

FEBS Open Bio, EarlyView.
SLC7A11 frequently migrates faster in SDS‐PAGE. The present study found that the high hydrophobicity of SLC7A11 causes its anomalous migration in SDS‐PAGE with a low concentration of acrylamide gel. Replacing isoleucine with asparagine reduced hydrophobicity and restored its normal migration at 55 kDa, revealing the role of hydrophobicity and gel ...
Nsengiyumva Emmanuel, Qian He, Yixin Kang, Dianbao Zhang, Min Gao, Minglin Wang, Kexin Fan, Jingwen Xiong, Shaobo Wu, Botao Fa, Zhengtao Xiao, Yingfang Niu, Jun Yao, Yilei Zhang   +13 more
wiley   +1 more source

PERFORMANCE OF LOW EARTH ORBIT SATELLITE SYSTEMS WITH A GAUSSIAN MIXTURES TRAFFIC DISTRIBUTION [PDF]

, 2001
Hebat-Allah M. Mourad, ABD EL-AZIZ EL-BASIONI, SHERIF EMAM, Emad K. Al‐Hussaini   +3 more
openalex   +3 more sources

Power system requirements [PDF]

An overview of electrical power requirements for each mission of a baseline and alternate plan for space activities in the 1990-2035 timeframe is presented.
Conway, Edmund J.
core   +1 more source