Results 41 to 50 of about 5,086,418 (244)

Identifying high-value landing ellipses on Mars using a continuous optimization framework with suitability map

International Journal of Applied Earth Observations and Geoinformation
For Mars landing site selection, it is of great engineering significance to identify landing ellipses that not only satisfy the geometric constraints of entry, descent, and landing (EDL) but also offer high scientific value.
Rong Wang, Yongjiu Feng, Yuhao Wang, Yi Zhou, Panli Tang, Jingbo Sun, Yusheng Xu, Chao Wang, Sicong Liu, Zhen Ye, Xiaohua Tong   +10 more
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Unmanned Aerial Vehicle Landing on Rugged Terrain by On-Board LIDAR–Camera Positioning System

Applied Sciences
Safely landing unmanned aerial vehicles (UAVs) in unknown environments that are denied by GPS is challenging but crucial. In most cases, traditional landing methods are not suitable, especially under complex terrain conditions with insufficient map ...
Cheng Zou, Yezhen Sun, Linghua Kong
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Multiple Cis-acting Polypyrimidine Tract Elements Regulate a Cooperative Mechanism for Triticum Mosaic Virus Internal Ribosomal Entry Site Activity

Frontiers in Plant Science, 2022
Diverse elements within the 5′ untranslated region of an mRNA can influence the translation efficiency at the main AUG codon. We previously identified a core picornaviral like Y16X11-AUG motif with 16-nt polypyrimidine CU tract separated by an 11-nt ...
Helena Jaramillo-Mesa, Emma Fischer, Aurélie M. Rakotondrafara   +2 more
doaj   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source

Calibrating mars orbiter laser altimeter pulse widths at mars science laboratory candidate landing sites [PDF]

, 2014
Accurate estimates of surface roughness allow quantitative comparisons between planetary terrains. These comparisons enable us to improve our understanding of commonly occurring surface processes, and develop a more complete analysis of candidate landing
Muller, J.-P., Gupta, S., Poole, Wil, Grindrod, Peter M., Muller, Jan-Peter, Poole, W., Gupta, Sanjeev   +6 more
core   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source

An Improved Method of Mars Landing Site Evaluation Using Spatial Heterogeneity-Based TOPSIS

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Mars landing site selection requires a multicriteria suitability assessment that balances scientific potential and engineering constraints. However, conventional methods often employ uniform global weighting, which may oversimplify spatial heterogeneity ...
Rong Wang, Yongjiu Feng, Yuhao Wang, Jingbo Sun, Yuze Cao, Yi Zhou, Yusheng Xu, Sicong Liu, Chao Wang, Zhen Ye, Xing Du, Shuangliang Liu, Xiaohua Tong   +12 more
doaj   +1 more source

Selection of the InSight Landing Site

, 2016
The selection of the Discovery Program InSight landing site took over four years from initial identification of possible areas that met engineering constraints, to downselection via targeted data from orbiters (especially Mars Reconnaissance Orbiter (MRO)
Banerdt, WB, Kirk, RL, Pike, WT, Fergason, R, Sklyanskiy, E, Lisano, M., Grima, C., Calef, F., Smith, I.B., Golombek, M., Benardini, J., Putzig, NE, Calef, F, Kipp, D., Banerdt, W.B., Fergason, R., Kirk, R., Smrekar, S.E., Huertas, A., Warner, N., Ashley, J, Lognonné, P, Lognonne, P., Beyer, R., Sweeney, J., Warner, N, Ashley, J., Kass, D, Putzig, N., Piqueux, S., Banerdt, W., Gwinner, K, Smrekar, S, Pike, W.T., Putzig, N.E., Gengl, H, Gwinner, Klaus, Redmond, L, Campbell, B.A., Huertas, A, Daubar, I., Sklyanskiy, E., Morgan, G., Lisano, M, Smith, IB, Trautman, M, Bloom, C., Pike, W., Trautman, M., Golombek, M, Benardini, J, Sweeney, J, Campbell, BA, Morgan, GA, Mischna, M, Morgan, G.A., Smith, I., Wigton, N, Mischna, M., Hare, T., Gengl, H., Smrekar, S., Bloom, C, Bernardini, J., Redmond, L., Lognonné, Philippe, Kipp, D, Daubar, IJ, Wigton, N., Grima, C, Kass, D., Hare, T, Piqueux, S, Schwartz, C., Campbell, B., Gwinner, K., Beyer, R, Charalambous, C, Schwartz, C, Charalambous, C., Kirk, R.L.   +80 more
core   +1 more source