Magnetically Driven Powerless Lighting Devices In article number 2207722, Michael Abraham Listyawan, Hyun-Cheol Song, Jungho Ryu, and colleagues introduce novel concept of magnetically driven powerless lighting device by combining mechanoluminescence material magneto–mechano-vibration cantilever structure. Such has the potential to be a sustainable efficient alternative source as it can stray m...

in the current study, a magnetic inorganic–organic nanohybrid material (hpa/tpi-fe3o4) was produced and used as an efficient, highly recyclable and eco-friendly catalyst for the one-pot and multicomponent synthesis of 3,4-dihydroquinoxalin-2-amine, diazepine-tetrazole and benzodiazepine-2-carboxamide derivatives with high yields and in a short range of time (20–35 min). the nanohybrid catalyst ...

A passive and wireless sensor was developed for monitoring pressure in vivo. Structurally, the pressure sensor, referred to as the magneto-harmonic pressure sensor, is an airtight chamber sealed with an elastic pressure membrane. A strip of magnetically-soft material is attached to the bottom of the chamber and a permanent magnet strip is embedded inside the membrane. Under the excitation of an...

We construct a solution to the low-energy string equations of motion in five dimensions that describes a circular loop of fundamental string exponentially expanding in a background electric H-field. Euclideanising this gives an instanton for the creation of a loop of fundamental string in a background H-field, and we calculate the rate of nucleation. Solutions describing magnetically charged st...

We study numerically the ambipolar diffusion-driven evolution of nonrotating, magnetically subcritical, disk-like molecular clouds, assuming axisymmetry. Previous similar studies have concentrated on the formation of single magnetically supercritical cores at the cloud center, which collapse to form isolated stars. We show that, for a cloud with many Jeans masses and a relatively flat mass dist...

This study examined the volitional and magnetically-evoked neuromuscular performance of the quadriceps femoris at functional knee joint angles adjacent to full extension. Indices of volitional and magnetically-evoked neuromuscular performance (N=15 healthy males, 23.5 ± 2.9 years, 71.5 ± 5.4 kg, 176.5 ± 5.5 cm) were obtained at 25°, 35° and 45° of knee flexion. Results showed that volitional an...

We show how a solitonic “magnetically” charged p-brane solution of a given supergravity theory, with the magnetic charge carried by an antisymmetric tensor gauge field, can be generalized to a dyonic solution. We discuss the cases of ten-dimensional and elevendimensional supergravity in more detail and a new dyonic five-brane solution in ten dimensions is given. Unlike the purely electrically o...

n-propylsulfamic acid supported onto magnetic fe3o4 nanoparticles (mnps-psa) was investigated as an efficient and magnetically recoverable catalyst for the one-pot synthesis of substituted coumarins from the reaction of coumarin with variety aromatic aldehydes in high to excellent yield at room temperature under solvent-free conditions. the magnetic nanocatalyst can be readily recovered easily ...

We explore the concept that the gas tori inferred to exist around the central black holes in many active galactic nuclei (AGN) have significant magnetic pressure support. We derive the basic equations for magnetically supported tori with a general axisymmetric B field involving toroidal and poloidal components. We treat strong and weak field limits assuming the aspect ratio R/a larger than unit...