A brief history of spaceflight from 1961 to 2020: An analysis of missions and astronaut demographics [0.03%]
从1961年到2020年的航天简史：任务与宇航员群体分析
Michael G Smith,Michelle Kelley,Mathias Basner
Michael G Smith
Human spaceflight and the characteristics of people who become astronauts have changed over time. Here we present an analysis of n=1,265 manned spaceflights by n=562 astronauts from 1961-2020 to investigate historical trends over time and b...
Earth observation for public health: Biodiversity change and emerging disease surveillance [0.03%]
地球观测与公共卫生：生物多样性变化和新发疾病监测
Samuel S Malloy,John M Horack,Jiyoung Lee et al.
Samuel S Malloy et al.
One Health is an emerging concept in the health sciences that approaches human, animal and environmental health from a single framework. This policy approach is grounded in the knowledge that approximately 70 percent of emerging diseases in...
Modal Propellant Gauging: High-resolution and non-invasive gauging of both settled and unsettled liquids in reduced gravity [0.03%]
舱内推进剂测量：低重力环境下已沉淀和未沉淀液体的高分辨率无损测量
Kevin M Crosby,Nehemiah J Williams,Rudolph J Werlink et al.
Kevin M Crosby et al.
The modal response of a liquid-filled tank to external acoustic excitation can be used to infer with high resolution the mass of contained liquid, the mass flow rate of liquids into and out of the tank, and changes in tank pressure. Both co...
Luis Zea,Zeena Nisar,Phil Rubin et al.
Luis Zea et al.
Biofilm growth has been observed in Soviet/Russian (Salyuts and Mir), American (Skylab), and International (ISS) Space Stations, sometimes jeopardizing key equipment like spacesuits, water recycling units, radiators, and navigation windows....
Determining best practices in reconnoitering sites for habitability potential on Mars using a semi-autonomous rover: A GeoHeuristic Operational Strategies Test [0.03%]
基于半自主探测器的火星潜在宜居地点侦察最佳实践研究：一个地学直觉操作策略试验项目
R A Yingst,J Berger,B A Cohen et al.
R A Yingst et al.
We tested science operations strategies developed for use in remote mobile spacecraft missions, to determine whether reconnoitering a site of potential habitability prior to in-depth study (a walkabout-first strategy) can be a more efficien...
LightForce photon-pressure collision avoidance: Efficiency analysis in the current debris environment and long-term simulation perspective [0.03%]
光压避碰的轻力方案：当前目标环境下的效率分析及长期仿真视角
Fan Yang Yang,Bron Nelson,Jonathan Aziz et al.
Fan Yang Yang et al.
This work provides an efficiency analysis of the LightForce space debris collision avoidance scheme in the current debris environment and describes a simulation approach to assess its impact on the long-term evolution of the space debris en...
An Efficient Approach for Mars Sample Return Using Emerging Commercial Capabilities [0.03%]
一种利用商业能力高效实现火星采样返回的方法
Andrew A Gonzales,Carol R Stoker
Andrew A Gonzales
Mars Sample Return is the highest priority science mission for the next decade as recommended by the 2011 Decadal Survey of Planetary Science [1]. This article presents the results of a feasibility study for a Mars Sample Return mission tha...
Increased intracranial pressure in mini-pigs exposed to simulated solar particle event radiation [0.03%]
模拟太阳粒子事件辐射暴露引起 miniature猪 脑压升高
Jk Sanzari,A Muehlmatt,A Savage et al.
Jk Sanzari et al.
Changes in intracranial pressure (ICP) during space flight have stimulated an area of research in space medicine. It is widely speculated that elevations in ICP contribute to structural and functional ocular changes, including deterioration...
Laura Drudi,Chad G Ball,Andrew W Kirkpatrick et al.
Laura Drudi et al.
In the coming decades, as we continue our path of space exploration beyond Earth's orbit, we will be required to provide sound medical and surgical care for the safety of space travellers and space flight participants. A few investigations ...
Increasing the Number of Unloading/Reambulation Cycles does not Adversely Impact Body Composition and Lumbar Bone Mineral Density but Reduces Tissue Sensitivity [0.03%]
增加卸载/再行走周期的次数不影响机体组成和腰椎骨密度但会降低组织敏感度
Shikha Gupta,Sarah L Manske,Stefan Judex
Shikha Gupta
A single exposure to hindlimb unloading leads to changes in body mass, body composition and bone, but the consequences of multiple exposures are not yet understood. Within a 18wk period, adult C57BL/6 male mice were exposed to one (1x-HLU),...