52 Result(s)
within
Engineering, general
**-Lin Wang
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Article
Open AccessHazard ranking of wastewater sources in a highly polluted river in northern Taiwan by using positive matrix factorization with metal elements
Improving water quality is a critical issue worldwide. However, the general parameters (i.e., temperature, pH, turbidity, total solids, fecal coliform, dissolved oxygen, biochemical oxygen demand, phosphates, ...
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Article
Open AccessIntegrated hybrid sensing and microenergy for compact active microsystems
Wearable electronics, as essential components of the Internet of Things (IoT), have attracted widespread attention, and the trend is to configure attractive wearable smart microsystems by integrating sensing, ...
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Article
Open AccessA flexible and wearable NO2 gas detection and early warning device based on a spraying process and an interdigital electrode at room temperature
Flexible sensors used to detect NO2 gas generally have problems such as poor repeatability, high operating temperature, poor selectivity, and small detection range. In this work, a new spraying platform with a si...
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Article
Open AccessPiezoelectric-AlN resonators at two-dimensional flexural modes for the density and viscosity decoupled determination of liquids
A micromachined resonator immersed in liquid provides valuable resonance parameters for determining the fluidic parameters. However, the liquid operating environment poses a challenge to maintaining a fine sen...
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Article
Open AccessRaindrop energy-powered autonomous wireless hyetometer based on liquid–solid contact electrification
Triboelectric nanogenerators (TENGs) can directly harvest energy via solid–liquid interface contact electrification, making them very suitable for harvesting raindrop energy and as active rainfall sensors. Thi...
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Article
Open AccessInvestigation of hydrocolloid for ice pattern preparation with extrusion 3D printing
Various 3D printing processes have been used to fabricate sacrificial patterns replacing wax patterns of investment casting, which significantly reduces the costs and lead times associated with single part or ...
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Article
Open AccessA computational fluid dynamic-based method for analyzing the nonlinear relationship between windage loss and pressure in a geotechnical centrifuge
Temperature control is an important limitation to further increase in geotechnical centrifuge power. Although vacuum pumps can reduce windage loss, they also negatively affect heat transfer performance. Theref...
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Article
Open AccessHoneycomb wet scrubber for acidic gas control: modeling and long-term test results
A laboratory scale, 1.0 CMM (m3 min− 1) wet scrubber packed with water-absorbing honeycomb material (HWS) with a very large geometric surface area of 480 m2 m− 3 and a low pressure drop developed in our previous ...
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Article
Open AccessPolarized holographic lithography system for high-uniformity microscale patterning with periodic tunability
Periodic microscale array structures play an important role in diverse applications involving photonic crystals and diffraction gratings. A polarized holographic lithography system is proposed for patterning h...
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Article
Erratum to: Experimental investigation on predicting precursory changes in entropy for dominant frequency of rockburst
Because of an unfortunate mistake during the production of this article, the initial printed versions and the online PDF had incorrect DOI numbers. The DOI has now been corrected and synchronized with the corr...
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Article
Open AccessSelf-powered ammonia synthesis under ambient conditions via N2 discharge driven by Tesla turbine triboelectric nanogenerators
Ammonia synthesis using low-power consumption and eco-friendly methods has attracted increasing attention. Here, based on the Tesla turbine triboelectric nanogenerator (TENG), we designed a simple and effectiv...
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Article
Open AccessBiological receptor-inspired flexible artificial synapse based on ionic dynamics
The memristor has been regarded as a promising candidate for constructing a neuromorphic computing platform that is capable of confronting the bottleneck of the traditional von Neumann architecture. Here, insp...
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Article
Open Access“Top-down” and “bottom-up” strategies for wafer-scaled miniaturized gas sensors design and fabrication
Manufacture of large-scale patterned nanomaterials via top-down techniques, such as printing and slurry coating, have been used for fabrication of miniaturized gas sensors. However, the reproducibility and uni...
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Article
Open AccessMosquito counting system based on optical sensing
Mosquitos, sometimes carrying deadly diseases such as malaria, zika, and dengue fever, cause much concern. To control mosquitos, it is important to effectively monitor their presence and behavioral trends. We ...
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Article
Open AccessChemical reaction kinetics and the characteristic properties of injectable adhesives of nano-hydroxyapatite/Ag3PO4/polyurethane for bone and tooth repair
Advancements have been made to injectable polymer technologies following the development of minimally invasive techniques for bone and tooth treatment. To improve the conversion rate and avoid potential toxici...
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Article
Controlled synthesis of uniform hollow polypyrrole microcapsules by a cosolvent approach
A simple and effective synthetic approach is demonstrated for the formation of uniform hollow polypyrrole (PPy) microcapsules. This process entails the preparation of homogeneous polystyrene@polypyrrole (PS@PP...
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Article
Erratum to: In situ forming chitosan-based hydrogel as a lung sealant for biological lung volume reduction
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Article
Urban structure and the risk of influenza A (H1N1) outbreaks in municipal districts
Changsha was one of the most affected areas during the 2009 A (H1N1) influenza pandemic in China. Here, we analyze the spatial–temporal dynamics of the 2009 pandemic across Changsha municipal districts, evalua...
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Article
Open AccessConstruction of Streptomyces lydicus A01 transformant with the chit33 gene from Trichoderma harzianum CECT2413 and its biocontrol effect on Fusaria
Streptomyces lydicus A01 resists many plant pathogens (including Fusarium spp.) by producing the antifungal agent natamycin, which binds to the ergosterol of fungal cell membranes and inhibits th...
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Article
Open AccessMulti-dimensional overall regulatory modes and threshold values for water cycle of the Haihe River Basin
In this study, a multi-dimensional critical regulatory criteria and decision-making mechanism based on the scientific cognition of multi-dimensional attributes and characteristics of the water cycle was propos...
