Measuring hydraulic properties of geotextiles after installation damage

Use of artificial neural networks to estimate installation damage of nonwoven geotextiles

This paper presents a feed forward back-propagation neural network model to predict the retained tensile strength and design chart in order to estimation of the strength reduction factors of nonwoven geotextiles due to installation process. A database of 34 full-scale field tests were utilized to train, validate and test the developed neural network and regression model. The results show that t...

5 Hydraulic Properties of Roots

Surface area of root (m-2) Concentration of solutes (osmolal) Average solute concentration between inside and outside of root Diameter Diffusion coefficient (m2 s-l) Mass flow of solution (kg s-l) Classical root hydraulic conductance (kg s-I MPa-l) Mass flux density or Fm per unit root surface area (kg s-I m-2) Solute flux density (mol s-I m-2) Thermodynamic root hydraulic conductance (kg s-I M...

Flammability Properties of Hydraulic Fluids

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...

Measuring Particle Size Distribution Using Laser Diffraction: Implications for Predicting Soil Hydraulic Properties

Methods to predict soil hydraulic properties frequently require information on the particle size distribution (PSD). The objectives of this study were to investigate various protocols for rapidly measuring PSD using the laser diffraction technique, compare the obtained PSD with those determined using the traditional hydrometer-and-sieves method (HSM), and assess the accuracy of soil hydraulic p...