Results 121 to 130 of about 262,991 (247)
Perovskite Light‐Emitting Diodes with Quantum Wires and Nanorods
This review focuses on low‐dimensional perovskite materials and discusses their applications in light‐emitting diodes (LEDs). Special attention is given to the introduction of perovskite quantum wires and nanorods, two unique types of one‐dimensional (1D) materials, and their interesting optoelectronic properties.
Qianpeng Zhang+11 more
wiley +1 more source
Hazardous Waits: CPSC Lets Crucial Time Pass Before Warning Public About Dangerous Products [PDF]
Despite a law requiring manufacturers to provide the Consumer Product Safety Commission (CPSC) with "immediate" notification of dangerous products, the agency typically delays nearly seven months after learning of dangerous, defective products before ...
Taylor Lincoln
core
This review examines the fluid dynamic behavior within carbonaceous porous structures, linking structural characteristics to electrolyte transport and electrochemical performance. Specifically, it quantitatively assesses the effect of polyphenol derivatives‐harnessed multiscale pore structures on active surface utilization and electrochemical activity ...
Minjun Kim+3 more
wiley +1 more source
Morphogenic Growth 3D Printing
I additive manufacturing process exploits the spatial propagation of a polymerization reaction front to produce 3D polymer parts 10× faster and 1000× more energy efficient than the fastest stereolithography. In contrast with existing 3D printing, this morphogenic process is inspired by biological “growth and form” due to the self‐directed propagation ...
Yun Seong Kim+10 more
wiley +1 more source
Some conjectures about the mechanism of poltergeist phenomenon [PDF]
Poltergeist accounts concern at least four kinds of strange spontaneous manifestations, such as burning of materials, failures of electric equipments, rapping noises and movements of objects. A simple analysis of phenomenology of these disturbances shows that they might have a common origin, that is, a reduction in strength of molecular bonds due to an
arxiv
In this review, the recent development of deep‐blue (≤465 nm) perovskite light‐emitting diodes (PeLEDs) are summarized, using different perovskite nanomaterials, including nanocrystals (NCs), quantum dots (QDs), nanoplatelets (NPLs), quasi‐2D thin film, 3D bulk thin film, as well as lead‐free perovskite nanomaterials.
Pui Kei Ko+6 more
wiley +1 more source
Vector potential analysis of the helicon antenna in vacuum [PDF]
The helicon antenna is a well-known device in the field of electric propulsion. Here we investigate the vector potential produced in vacuum by such an antenna with typical size parameters. Both a static and a dynamic analysis are performed. The dynamic calculation is evaluated at both the usual operating frequency and one which is slightly greater.
arxiv
The Perfect Pitch: Car Commercials in the Environment
Car commercials, like many advertisements, tempt its viewers with comfort, capability, or safety features, as well as being well‐engineered, affordable, attractive, large or compact sized, or fuel efficient. This study examines the pitches in YouTube car
Beyer, Alyssa P., Moyer, Sara
core
This review describes recent developments in the design and synthesis of metal–organic frameworks (MOF)/textile composites for the detoxification of chemical warfare agent and simulants with extensive discussion on the advantages and disadvantages of different methods.
Zhihua Cheng+4 more
wiley +1 more source