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Micro Coriolis Mass Flow Sensor with Large Channel Diameter Realized by HNA Wet Etching.
Sensors (Basel)
December 2024
MESA+ Institute for Nanotechnology, University of Twente, 7522 NH Enschede, The Netherlands.
This paper introduces a Coriolis mass flow and density sensor. The sensor is made using Surface Channel Technology (SCT) but with selective wet etching to create the channels. This method forms suspended microfluidic channels with a larger cross-sectional area.
View Article and Find Full Text PDFNon-Hermitian Theory of Valley Excitons in Two-Dimensional Semiconductors.
Phys Rev Lett
December 2024
School of Physics and Electronics, Hunan University, Changsha 410082, China.
Electron-hole exchange interaction in two-dimensional transition metal dichalcogenides is extremely strong due to the dimension reduction, which promises valley-superposed excitonic states with linearly polarized optical emissions. However, strong circular polarization reflecting valley-polarized excitonic states is commonly observed in helicity-resolved optical experiments. Here, we present a non-Hermitian theory of valley excitons by incorporating optical pumping and intrinsic decay, which unveils an anomalous valley-polarized excitonic state with elliptically polarized optical emission.
View Article and Find Full Text PDFFirst Report of Powdery Mildew Caused by on in China.
Plant Dis
December 2024
Lushan Botanical Garden, Jiangxi province and Chinese Academy of Science, Jiujiang, 332900, Jiangxi, China;, Jiujiang, China;
Aeschynomene indica is a semiaquatic legume that can be used as field green manure, forage grass, and medicinal plant (Zhang et al., 2019). It is also an "amphibious" plant commonly used as a wetland park green plant.
View Article and Find Full Text PDFSemiautomatic Quantitative Assessment of DIEP Flap Volume and Thickness for Breast Reconstruction using CTA Data and Implications in Postoperative Complications.
JPRAS Open
December 2024
Department of Plastic & Reconstructive Surgery, Hospital Clínic de Barcelona, Barcelona, Spain.
Accurately assessing flap volume and thickness is a crucial aspect of breast reconstruction using the deep inferior epigastric perforator (DIEP) flap, especially in challenging cases such as thin or large-breasted women or bilateral reconstruction. To address this, we present an innovative image processing tool utilizing computed tomography angiography (CTA) to measure DIEP flap volume and thickness. Our approach incorporates an elliptical equation validated on DIEP reconstruction patients.
View Article and Find Full Text PDFPure spin current generation with photogalvanic effects in h-BN/graphene/h-BN van der Waals vertical heterostructures.
Phys Chem Chem Phys
December 2024
Yancheng Polytechnic college, Yancheng 224005, China.
We have computationally demonstrated a new method for generating pure spin current with the photogalvanic effect (PGE) by constructing transport junctions using h-BN/graphene/h-BN van der Waals (vdW) heterostructure leads. It has been observed that the pure spin current without any accompanying charge current induced by the PGE can consistently be obtained, regardless of photon energy and polarization/helicity angle, as well as the specific type of polarization (linear, circular, or elliptical). The mechanism lies in the structural inversion symmetry and real space spin polarization antisymmetry of the junctions.
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