Results 211 to 220 of about 324,242 (371)

3 months transit time to Mars for human missions using SpaceX Starship. [PDF]

Sci Rep
Kingdon J.
europepmc   +1 more source

Mid Lift-to-Drag Ratio Rigid Vehicle 6-DoF Performance for Human Mars Entry, Descent, and Landing: A Fractional Polynomial Powered Descent Guidance Approach [PDF]

Defining a feasible vehicle design and mission architecture capable of reliably delivering apayload of 20 metric tons (mt) or more is a great challenge for landing humans on Mars.
Johnson, Breanna J., Lu, Ping, Sostaric, Ronald R.   +2 more
core   +1 more source

Bringing Small Devices, Giving Design Advice: Introducing Radiation Protection Practices in Greece via the IAEA's Visiting Professor Program**

Berichte zur Wissenschaftsgeschichte, EarlyView.
Abstract This paper examines how an International Atomic Energy Agency (IAEA) expert mission for technical assistance in the late 1950s to Greece was effectively transformed into a mission to achieve the IAEA′s central objective: to consolidate its position as the leading global authority on radiation protection. The study focuses on the work of Alfred
Loukas Freris
wiley   +1 more source

Martian samples, hazards, and biosecurity: Between science and bioethics. [PDF]

Proc Natl Acad Sci U S A
Siqueira-Batista R, Gómez F.
europepmc   +1 more source

Sedimentation and Proposed Algorithms to Detect the Possible Existence of Vegetation and Humidity in the Landing Area of the Mars Exploration Rover-B (Opportunity)

, 2021
Emilio Ramírez Juidías, Katherine Villavicencio Valero, Arthur Borja   +2 more
openalex   +2 more sources

Release of bacterial spores from inner walls of a stainless steel cup subjected to thermal stress [PDF]

In an earlier report thermal stresses, simulating those expected on a Mars Lander, dislodged approximately 0.01% of an aerosol deposited surface burden, as did a landing shock of 8-10 G deceleration.
Chatigny, M. A., Herbert, J., Wolochow, H.   +2 more
core   +1 more source

Balancing Doses of EL222 and Light Improves Optogenetic Induction of Protein Production in Komagataella phaffii

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Komagataella phaffii, also known as Pichia pastoris, is a powerful host for recombinant protein production, in part due to its exceptionally strong and tightly controlled PAOX1 promoter. Most K. phaffii bioprocesses for recombinant protein production rely on PAOX1 to achieve dynamic control in two‐phase processes.
Shannon M. Hoffman, Sebastián Espinel‐Ríos, Sarah K. Kwartler, Makoto A. Lalwani, José L. Avalos   +4 more
wiley   +1 more source

Ancient ocean coastal deposits imaged on Mars. [PDF]

Proc Natl Acad Sci U S A
Li J, Liu H, Meng X, Duan D, Lu H, Zhang J, Zhang F, Elsworth D, Cardenas BT, Manga M, Zhou B, Fang G.   +11 more
europepmc   +1 more source

Rock Size-frequency Distributions of the InSight Landing Site, Mars

, 2021
M. P. Golombek, Allyson R. Trussell, N. R. Williams, Constantinos Charalambous, H. Abarca, N. H. Warner, Margaret Deahn, M. R. Trautman, Bob Crocco, J. A. Grant, Ernst Hauber, R. Deen   +11 more
openalex   +1 more source

The P134Q Sucrose Phosphorylase: Subtle Changes in the Catalytic Properties Benefit the Production of 2‐O‐α‐Glucosyl Glycerol

Biotechnology and Bioengineering, EarlyView.
Production of the cosmetic ingredient 2‐α‐d‐glucosyl glycerol (2GG) by the Pro134Gln variant of sucrose phosphorylase from Bifidobacterium adolescentis is reported. The authors show with detailed characterization and hybrid kinetic modeling that the enzyme variant can improve the 2GG productivity of the biocatalytic process due to its increased ...
Alexander Sigg, Mario Klimacek, Martin Pfeiffer, Jorick Franceus, Tom Desmet, Bernd Nidetzky   +5 more
wiley   +1 more source