A study found that multicolor lighting alleviated increase in anxiety and negative emotions caused by isolation and confinement. The researchers used Philips Hue Bluetooth wireless light bulbs to project colored light in an isolated room.
A study found that Dragon's Blood alleviates brain damage, hematopoietic dysfunction, and gastrointestinal damage caused by radiation in rats. The compound regulates metabolism and redox homeostasis to protect the liver from damage.
A novel Kalman filter, GMCKF, was proposed to improve robot tracking accuracy in space with complex non-Gaussian noise. The algorithm achieves better performance under various non-Gaussian noises by utilizing a generalized Gaussian density function and automatic parameter selection.
Researchers created a cyborg beetle to study insect flight, using a tiny control backpack and electrodes to stimulate muscles. The study found that the subalar muscle regulates wing rotation angle to adjust body angles and accelerations in free flight, enabling complex maneuvers.
Scientists designed novel hard carbon anodes with controlled defects, pore structures, and cation doping to boost sodium storage capacity. The optimized materials showed improved rate capability, cycling stability, and energy density. Introducing potassium ions regulated the microstructure and surface functionality of the anodes.
Researchers anchored Mo2C nanoparticles onto MAPbI3 to enhance photocatalytic activity for hydrogen evolution. The composite exhibits superior performance, surpassing pristine MAPbI3 and Pt-deposited MAPbI3.
Researchers have developed a new training method for machine learning models to perform blood cell counts, reducing manual annotation work. The U-Net model achieves high accuracy in segmenting images with multiple cell types, promising a simpler and cheaper alternative to traditional cell analyzers.
Scientists have successfully developed lead-free bismuth halide perovskites with broadband emission, overcoming toxicity and instability issues of traditional lead-based materials. The new material exhibits high efficiency and stability, paving the way for potential applications in artificial lighting and displays.
Researchers overview properties and disadvantages of cathode materials, focusing on metal-based compounds and carbon-based materials. Modification methods, including surface treatment and decoration, are discussed to enhance performance of Br-FBs.
The study focused on the analysis and selection of Mars parachute types, with a focus on supersonic speed, low density, and harsh atmospheric conditions. The optimized tapered DGB parachute structure demonstrated improved deceleration performance, meeting the requirements for the Tianwen-1 Mars probe.
The system uses multiple satellites to form an aperture-synthetic interferometer, meeting four key demands: high spatial resolution, contrast, sensitivity, and wide spectral range. Numerical simulations validate the method's efficiency, with reduced transfer times and stable orbit maintenance.
The article reviews key technologies for space intelligent robots in on-orbit operation requirements. Researchers discuss challenges such as microgravity, complex illumination, and strong radiation in space.
This special issue of Energy Material Advances highlights recent progress in synthesizing and tuning perovskite nanocrystals and other emerging nanocrystal materials. Research focuses on fundamental understanding of doping, synthesis, and spectroscopy, as well as applications in solar cells and light-emitting diodes.
Researchers analyzed the effects of environmental pressure setting, time step, and mesh density on the pressure differential calculation results. The study used numerical simulation to improve the accuracy of calculations, with results showing that changes in ambient pressure are the primary factor affecting the pressure differential.
Researchers created two types of hydrogenous-rich composites for shielding space radiation, which showed higher shielding abilities than traditional aluminum. The simulations also revealed that these new composites can reduce the mass needed for shielding by up to 77% when the thickness is larger than 10 g/cm².
Biohybrid micro- and nanorobots promise to deliver drugs to body tissues with high precision, enabling tasks such as cancer treatment, cell microsurgery, and tissue engineering. Researchers envision incorporating novel biological components into robots to overcome immune responses and increase efficiency in manufacturing.
Researchers explore the influence of forebody and afterbody shapes on Mars ascent vehicle aerodynamic performance. Studies reveal that conical forebodies can reduce drag in slender ascent vehicles, while exponential forebodies improve resistance performance in short blunt bodies.
Magnesium-based batteries offer a promising alternative to lithium-ion batteries, with several significant advantages. However, developing cost-effective and high-performance batteries requires further research on electrolyte development, anode design, and cathode structure.
Researchers developed a hybrid machine-learning approach combining CNN and LSTM to recognize complex hand gestures in prosthetic hands. The technique achieved far superior performance than traditional machine learning efforts, with an accuracy of over 80%, but struggled with certain pinching gestures.
Researchers developed an autonomous assembly method for a 3-arm robot to fix a multi-pin and hole load plate on a space station. This solution tackles the challenges of complex environmental lighting and matching multiple groups of holes and pins in the task. The study reduces astronaut safety risks by leveraging robots instead of humans.
Researchers conducted a free-flight ballistic range test to capture the attitude behaviors and aerodynamic characteristics of Tianwen-1 Mars entry capsule. The study revealed that the capsule is dynamically unstable in pitch and yaw directions, but statically stable in these directions.
Researchers developed a recursive composite adaptive control method to improve the accuracy and dynamic performance of robot manipulators in the Chinese Space Station. The new controller reduces computational loads and achieves faster parameter convergence, making it suitable for high-degree-of-freedom robots.
The article discusses how scientists at Beijing Institute of Technology Press Co., Ltd. used key orbit design technologies to achieve a 23-day journey of lunar sample return with the Chang'E 5 mission. The success relied on precise orbit designs for lunar orbit rendezvous and docking, precision landing, and inclination optimization.
A new neural net technique combines optical imaging and synthetic-aperture radar to provide a single comprehensive data source, enhancing disaster response capabilities. The approach achieves up to a 96% accuracy rate in detecting objects and can be applied to various tasks such as crop health monitoring and building identification.
Researchers developed P-/Sn-based composites with high-capacity and stability anode materials for sodium-ion batteries. The study reveals a new approach to produce cost-effective and scalable solutions.
Researchers developed a novel lithium-containing crosslinked polymeric material, LiGL, which exhibits exceptional protection effects on lithium metal anodes. The material achieves superior cycling stability, even after over 20,000 Li-stripping/plating cycles without failures.
Researchers developed a green synthesis method for ammonia production using green tea as a reducing agent. The study found that the optimized sample showed 2.93-fold enhanced photocatalytic activity and increased NH3 selectivity, outperforming bulk g-C3N4 under simulated sunlight irradiation.
Developed by researchers from Harbin Institute of Technology, a new robotic arm can manipulate in environments difficult for humans and adapt to changing conditions. The arm weighs only 9.23 kilograms and can exert constant force control, enabling it to maintain contact with curved surfaces in space.
The Tianwen-1 Mars rover landed successfully due to its advanced autonomous guidance, navigation and control system. The system performed reliable key event triggers and accurate state estimates to implement trajectory and attitude controls.
An international research team led by Jennifer L. Schaefer has analyzed the potential of magnesium-ion-conducting solid polymer electrolytes in two separate battery systems. The study found that these electrolytes exhibit higher thermal, mechanical, and electrochemical stability compared to traditional liquid electrolytes, making them ...
Researchers developed a molecular compound that serves as a low-cost electrolyte for redox flow batteries, enabling stable operation and high capacity retention. The compound overcomes limitations of previous electrolytes by increasing its hydrophilicity and conductivity.
Researchers at Beijing Institute of Technology created a robot that can track fast-moving rats for extended periods using real-time localization and movement analysis. The robotic rat's built-in stereo vision system enables it to characterize typical behaviors of actual rats, promoting autonomy and reproducibility in behavior research.
The Chang'e-5 mission achieved a successful soft lunar landing using an innovative guidance, navigation and control system. The LAM used various sensors to navigate its descent and landing, with multiple sensors providing redundancy to ensure the success of the mission.