Multiple introductions can play a prominent role in explaining the success of biological invasions. One often cited mechanism is that multiple introductions of invasive species prevent genetic bottlenecks by parallel introductions of several distinct genotypes that, in turn, provide heritable variation necessary for local adaptation. Here, we show that the invasion of Aegilops triuncialis into ...

The energy conversion efficiency of the polymer electrolyte membrane fuel cell needs improved thermal and water managements. Here, actual concentration Nafion? in working at constant stoichiometry relative humidity is measured by operando Raman microspectroscopy. Through-plane content profiles with ?m resolution are obtained across locations corresponding to gas distribution channel under lands...

Micromixing devices often utilize complex architectures to mix miscible liquid streams and can be expensive fabricate. Here, we developed, built, experimentally tested, computationally analyzed a serpentine micromixer that fabricated using simple tools supplies available in non-microdevice dedicated laboratories. Fluorescence imaging was used quantify its mixing effectiveness experimentally. A ...

To achieve dual frequency operation for wireless body area network (WBAN) applications, a hybrid dual-band dielectric resonator antenna with serpentine slot fed by a microstrip line is proposed. The proposed antenna structure consists of cylindrical dielectric resonator and serpentine slot resonator. The serpentine slot is etched on the ground plane of the dielectric resonator antenna (DRA). By...

Serpentine barrens represent extreme hazards for plant colonists. These sites are characterized by high porosity leading to drought, lack of essential mineral nutrients, and phytotoxic levels of metals. Nevertheless, nature forged populations adapted to these challenges. Here, we use a population-based evolutionary genomic approach coupled with elemental profiling to assess how autotetraploid A...

The present paper investigates the thermal mixing and cooling processes in a passive micromixer, which is applicable for of electronic devices. Employing porous block testing different configurations channel considered to enhance process performance. A 2D lattice Boltzmann model utilized investigate performance T-micromixer with block. Two types configurations, including step-shaped zigzag-shap...

Binary IV–VI chalcogenides MXs (SnS, SnSe, SnTe, GeS, GeSe, and GeTe), as a family two-dimensional (2D) semiconductor material, have proper bandgap, high carrier mobility, stability in ambient conditions, pucker structure, hence they are potential channel materials for the next-generation electronic optoelectronic devices. 2D devices should directly contact metal electrodes to inject suitable t...

A rare case of partially thrombosed giant serpentine right middle cerebral artery aneurysm presented. A 26 year old man initially presented with headache and 3 months later developed neurological deficit. Various stages of clot with patent residual lumen seen on neuroimaging, led to the diagnosis. Catheter angiography is the investigation of choice for evaluating the location, flow dynamics and...