Rapid Moisture-Responsive Silk Fibroin Actuators

2021 ◽  
Vol 13 (7) ◽  
pp. 8880-8888
Author(s):  
Ganesan Manikandan ◽  
Aathira Murali ◽  
Ravi Kumar ◽  
Dillip K. Satapathy
Keyword(s):  
Silk Fibroin ◽  
Rapid Moisture

scholarly journals A Non-Invasive Soil Moisture Sensing System Electronic Architecture: A Real Environment Assessment

Sensors ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 6147
Author(s):  
Leonardo Franceschelli ◽  
Annachiara Berardinelli ◽  
Marco Crescentini ◽  
Eleonora Iaccheri ◽  
Marco Tartagni ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Electronic Circuit ◽  
Silty Clay ◽  
Non Invasive ◽  
Fast Estimation ◽  
Sensing System ◽  
Real Environment ◽  
Loam Soil ◽  
Rapid Moisture ◽  
Moisture Sensing

This paper will show the electronic architecture of a portable and non-invasive soil moisture system based on an open rectangular waveguide. The spectral information, measured in the range of 1.5–2.7 GHz, is elaborated on by an embedded predictive model, based on a partial least squares (PLS) regression tool, for the estimation of the soil moisture (%) in a real environment. The proposed system is composed of a waveguide, containing Tx and Rx antennas, and an electronic circuit driven by a microcontroller (MCU). It will be shown how the system provides a useful and fast estimation of moisture on a silty clay loam soil characterized by a moisture range of about 9% to 32% and a soil temperature ranging from about 8 °C and 18 °C. Using the PLS approach, the moisture content can be predicted with an R2 value of 0.892, a root mean square error (RMSE) of 1.0%, and a residual prediction deviation (RPD) of 4.3. The results prove that it is possible to make accurate and rapid moisture assessments without the use of invasive electrodes, as currently employed by state-of-the-art approaches.

Fluorine plasma treatment on carbon-based perovskite solar cells for rapid moisture protection layer formation and performance enhancement

2020 ◽  
Vol 56 (4) ◽  
pp. 535-538 ◽  
Author(s):  
Jungwon Kim ◽  
Gyeongseop Lee ◽  
Kisu Lee ◽  
Haejun Yu ◽  
Jong Woo Lee ◽  
...  
Keyword(s):  
High Performance ◽  
Performance Enhancement ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Layer Formation ◽  
Moisture Protection ◽  
Rapid Moisture ◽  
Protection Layer ◽  
And Performance ◽  
Treated Carbon

We first manufactured an F plasma-treated carbon electrode-based high performance perovskite solar cell with strong moisture resistance.

A comparison of two methods for estimating conifer live foliar moisture content

2012 ◽  
Vol 21 (2) ◽  
pp. 180 ◽  
Author(s):  
W. Matt Jolly ◽  
Ann M. Hadlow
Keyword(s):  
Moisture Content ◽  
Mean Absolute Error ◽  
Absolute Error ◽  
Fuel Moisture ◽  
Oven Drying ◽  
Moisture Contents ◽  
Content Determination ◽  
Rapid Moisture ◽  
Live Fuel Moisture ◽  
Moisture Content Determination

Foliar moisture content is an important factor regulating how wildland fires ignite in and spread through live fuels but moisture content determination methods are rarely standardised between studies. One such difference lies between the uses of rapid moisture analysers or drying ovens. Both of these methods are commonly used in live fuel research but they have never been systematically compared to ensure that they yield similar results. Here we compare the foliar moisture content of Pinus contorta (lodgepole pine) at multiple sites for an entire growing season determined using both oven-drying and rapid moisture analyser methods. We found that moisture contents derived from the rapid moisture analysers were nearly identical to oven-dried moisture contents (R2 = 0.99, n = 68) even though the rapid moisture analysers dried samples at 145°C v. oven-drying at 95°C. Mean absolute error between oven-drying and the rapid moisture analysers was low at 2.6% and bias was 0.62%. Mean absolute error was less than the within-sample variation of an individual moisture determination method and error was consistent across the range of moisture contents measured. These results suggest that live fuel moisture values derived from either of these two methods are interchangeable and it also suggests that drying temperatures used in live fuel moisture content determination may be less important than reported by other studies.

Mass Transfer Characteristics of Chicken Nuggets

2006 ◽  
Vol 2 (3) ◽  
Author(s):  
Michael Ngadi ◽  
Khaldoun Dirani ◽  
Sylvester Oluka
Keyword(s):  
Mass Transfer ◽  
Moisture Diffusivity ◽  
Moisture Loss ◽  
Cooking Methods ◽  
Deep Fat Frying ◽  
Chicken Nuggets ◽  
The Core ◽  
Transfer Characteristics ◽  
Rapid Moisture ◽  
Temperature Levels

Chicken nuggets were either deep fat fried at three temperatures (150, 170 and 190oC) for 1 to 4 min or oven baked at three temperature levels (200, 220 and 240oC) for 5 to 25 min. The effects of these cooking methods on mass transfer characteristics of chicken nuggets were evaluated. Moisture loss profiles in the breading and core portions of the product were significantly different. There was a rapid moisture loss from the breading portion within the first 2 min of deep fat frying or within the first 15 min of oven baking followed by considerably reduced rates. Moisture loss in the core region changed only slightly in the early stages of frying or oven baking but increased afterwards. Moisture diffusivity in the breading region was evaluated using analytical solution of Fick’s second law diffusion equation. Values of moisture diffusivity were from 20.93x10-10 to 29.32x10-10 m2/s for deep fat frying and from 1.90x10-10 to 3.16x10-10 m2/s for oven baking. The activation energies were 8.04 and 25.7 kJ/mol for deep fat frying and oven baking, respectively.

Thermo-Hygral Model for of Shrinkage Induced Stresses in Concrete Structures

2008 ◽  
Vol 400-402 ◽  
pp. 929-934 ◽  
Author(s):  
M.H. Baluch ◽  
Isam A. Mahmoud ◽  
M. Kalimur Rahman
Keyword(s):  
Finite Element ◽  
Thermal Stresses ◽  
Concrete Structures ◽  
Moisture Diffusion ◽  
Shrinkage Strain ◽  
Moisture Loss ◽  
Finite Element Software ◽  
Shrinkage Cracks ◽  
Rapid Moisture

Rapid moisture loss in concrete and the coupled shrinkage strain in concrete elements cause distress in structural members at early ages. The shrinkage stresses and the associated cracks can be reduced by controlling the rate of the moisture loss. However, under some circumstances, controlling the rate of the moisture rate is not practically possible which may add additional cost to the concrete construction. A finite element based technique is suggested in this paper to predict the shrinkage stresses and consequently predict the possibility of having shrinkage cracks. The technique utilizes the analog between the heat transfer and moisture diffusion, thermal stresses and shrinkage stresses. The analysis was performed using thermal and structural modules in the commercial finite element software ANSYS. The process described in this work makes the determination of restrained shrinkage stresses in problems of concrete structures readily accessible to design, repair and construction engineers.

Thermo-physical moisture meter for rapid moisture determination in tabletized substances

1968 ◽  
Vol 2 (1) ◽  
pp. 39-42
Author(s):  
B. S. Aleksandrov ◽  
V. B. Gleibman ◽  
V. N. Ershov
Keyword(s):  
Moisture Determination ◽  
Moisture Meter ◽  
Rapid Moisture
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