Results 101 to 110 of about 78,885 (346)

Generation of optimal trajectories for Earth hybrid pole sitters [PDF]

, 2011
A pole-sitter orbit is a closed path that is constantly above one of the Earth's poles, by means of continuous low thrust. This work proposes to hybridize solar sail propulsion and solar electric propulsion (SEP) on the same spacecraft, to enable such a ...
Becerra V. M., Becerra V. M., Betts J. T., Colin R. McInnes, Gershman R., Lazzara M. A., Leipold M., Leiter H. J., Matteo Ceriotti, McInnes C. R., Mori O., Simo J., Wertz J. R.   +12 more
core   +1 more source

CRISPR/Cas9‐Assisted Microrobots for Fast and Ultrasensitive “On‐The‐Fly” Next‐Generation DNA Detection

Advanced Functional Materials, EarlyView.
This work presents self‐propelled CRISPR/Cas9‐functionalized Au–MRs for rapid, amplification‐free, “on‐the‐fly” DNA detection. By harnessing motion‐assisted signal recovery, the platform achieved the limit of detection in low fM DNA concentrations, enabling detection across a wide dynamic range within only 5 min, which is significantly faster than any ...
Jyoti, Petr Michálek, Zbyněk Heger, Martin Pumera   +3 more
wiley   +1 more source

Passive propellant system [PDF]

The system utilizes a spherical tank structure A separated into two equal volume compartments by a flat bulkhead B. Each compartment has four similar gallery channel legs located in the principal vehicle axes, ensuring that bulk propellant will contact ...
Hess, D. A., Jacobs, V. L., Regnier, W. W.   +2 more
core   +1 more source

Differentiating the Synergistic Interactions Between Li+ Salts and Cyclic to Linear Carbonate Ratios to Enable Wide‐Temperature Performance of Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
The coordination in carbonate solvents and degradation products of lithium difluoro(oxolato) borate (LiDFOB) salt enables sufficient passivation of both LiNi0.8Mn0.1Co0.1O2 (NMC811) cathode and graphite anode in the absence of ethylene carbonate (EC).
Thomas J. Watts, Marshall C. Smart, Arumugam Manthiram   +2 more
wiley   +1 more source

Rate of Burning of Colloidal Propellants [PDF]

, 1933
F. R. W. Hunt, G. H. Hinds
openalex   +1 more source

Propellant-remaining modeling [PDF]

A successful satellite mission is predicted upon the proper maintenance of the spacecraft's orbit and attitude. One requirement for planning and predicting the orbit and attitude is the accurate estimation of the propellant remaining onboard the ...
Torgovitsky, S.
core   +1 more source

An earth pole-sitter using hybrid propulsion [PDF]

, 2010
In this paper we investigate optimal pole-sitter orbits using hybrid solar sail and solar electric propulsion (SEP). A pole-sitter is a spacecraft that is constantly above one of the Earth's poles, by means of a continuous thrust.
Becerra V. M., Betts J. T., Driver J. M., Fahroo F., Fornberg B., Mengali G., Powell M. J. D., Quarta A. A., Wertz J. R.   +8 more
core   +2 more sources

An Ultra‐Robust Memristor Based on Vertically Aligned Nanocomposite with Highly Defective Vertical Channels for Neuromorphic Computing

Advanced Functional Materials, EarlyView.
An ultra‐robust memristor based on SrTiO3‐CeO2 (S‐C) vertically aligned nanocomposite (VAN) achieving exceptional endurance of 1012 switching cycles via interface engineering. Artificial neural networks (ANNs) integrated with S‐C VAN memristors exhibit high training accuracy across multiple datasets.
Zedong Hu, Hongyi Dou, Jeremy B. Gan, Cun Li, Xuanyu Sheng, Juanjuan Lu, Abhijeet Choudhury, Jialong Huang, Yizhi Zhang, Zhongxia Shang, Ye Cao, Xinghang Zhang, Haiyan Wang   +12 more
wiley   +1 more source

Insights into the Improved Gas Barrier Properties of Polyurethane–Clay Nanocomposite-Coated Nylon: A Solid-State NMR Study

ACS Omega, 2023
Srinivas Chinthalapalli, Bhuvaneswari Soundiraraju, Srirangam Siripothu, Sushree Sangita Dash   +3 more
doaj   +1 more source

Corrosion Behavior of Titanium Alloy in Hydroxylammonium Nitrate (HAN)Based Propellant Using Electrochemical Noise Technology [PDF]

Cailiao Baohu
Hydroxylammonium nitrate (HAN)-based propellant is a new type of green propellant.The compatibility of HAN-based propellants with traditional aerospace structural materials， such as titanium alloys， requires further investigation.The corrosion behavior ...
TANG Zhanmei, PENG Zheng, GUO Wei, BAO Shiguo, SUN Haiyun, ZHANG Xiaoliang
doaj   +1 more source