Since its introduction in 2010, the nearly Zero Energy Building (nZEB) concept has known a large diffusion in European countries. Albania, an aspiring candidate country to join the European Union EU, is paving the way towards its introduction by transposing EU directives in the fields of energy...
Recently, the spectral region in which the index of refraction of a material approaches zero has become a topic of interest owing to fascinating phenomena, such as static light, enhanced nonlinearities, light tunnelling and emission tailoring. As a result, such near-zero-index (NZI) materials ...
1b. The initial stiffness of the spring in the sensitive direction can be reduced by electrothermally heating its structure until it reaches near-zero stiffness behavior, as depicted in Fig. 1c. Thus, the accelerometer’s sensitivity is tuned by electrothermally adjusting the spring mechanism’s...
Harnessing solar energy efficiently and storing it as chemical energy has long been a challenge for engineers. However, nature solved this problem billions of years ago. A new study reveals that quantum mechanics isn’t just a concept for physicists — it also plays a crucial role in biological...
In the worst case (maximum number of non-zero coefficients), there are (ml · nu + nl ) bilinear terms in mu non-linear non-convex constraints. This number of bilinear terms can be reduced by introducing the following variables ( p, o), along with the corresponding constraints: min p,...
The second fluid tested was a sodium silicate solution, which showed very low (almost zero) pressure build up that can be explained as a result of the silicate precipitates acting to block the pores of the sample thus preventing filtrate invasion. When a solution containing 25% sucrose was ...
According to head of HP’s Zero Day, in an annual hacking competition (Pwn2Own) in 2015, researchers used flaws of technology to compromise the NFC devices [113]. Several researchers tried to increase the range of NFC communication via different design topologies. For example, Range extension ...
1b. For instance, to design a \(\Gamma\)-point (normal-incidence) GMR at a given wavelength λ, we need a kGMR with zero in-plane component, \({n}_{{{\rm{eff}}}\bullet \frac{2\pi }{\lambda }-\frac{2\pi }{P}=0\). The dashed lines in the dispersion plot give an exam...
Green hydrogen produced by water splitting using renewable electricity is essential to achieve net-zero carbon emissions. Present water electrolysis technologies are uncompetitive with low-cost grey hydrogen produced from fossil fuels, limiting their scale-up potential. Disruptive processes that decouple the...
The optimized cloaking design for conducting cylinders of different sizes is studied based on the Mie scattering theory. We construct a concentric multi-layered cloak made of alternating materials with isotropic dielectrics and epsilon-near-zero (ENZ) ma