Results 21 to 30 of about 32,389,055 (296)

An 'active' passive-filter topology for low power DC/AC inverters [PDF]

open access: yes, 2011
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis presents a new output passive filter for voltage source inverter applications which is based on a shunt connected single tuned filter topology ...
Arman, Mahmoud Fayez
core   +6 more sources

Suction tests on sliding soil in interface landslide based on filter paper method

open access: yesYantu gongcheng xuebao, 2018
Suction is a decisive factor to control the state of unsaturated soils. The filter paper method is an indirect method for measuring suction, which has the advantages of low cost, large measuring range and high precision.
CHEN Wen-wu 1, 2, LIU Peng 1, LIU Wei 1, LIN Gao-chao 1, XU He 1
doaj   +1 more source

A rapid method for determining the soil-water characteristic curves in the full suction range

open access: yesRock and Soil Mechanics, 2022
The traditional methods for determining the soil-water characteristic curve (SWCC) in the full suction range always takes several months. To better guide the engineering practice with the theory of unsaturated soil mechanics, the rapid determination of ...
LI Xu   +4 more
doaj   +1 more source

Influences of different grain size contents on soil-water characteristic curve of unsaturated laterite based on fractal theory

open access: yesShuili Shuiyun Gongcheng Xuebao, 2018
The contents of different particle sizes in soil are one of the main factors that affect the soil-water characteristic curve. It is of great practical value to study and analyze the seepage and strength problems of the unsaturated soil.
LIU Xingzhi   +4 more
doaj   +1 more source

A hybrid active filter for damping of harmonic resonance in industrial power systems [PDF]

open access: yes, 1998
This paper proposes a hybrid active filter for damping of harmonic resonance in industrial power systems. The hybrid filter consists of a small-rated active filter and a 5th tuned passive filter.
T. Yamasaki   +5 more
core   +1 more source

Template Synthesis of Highly Dispersed LiNi0.5Mn1.5O4 Thin Flakes with Improved Electrochemical Performance using Filter Paper

open access: yesInternational Journal of Electrochemical Science, 2018
A highly dispersed flaky LiNi0.5Mn1.5O4 has been successfully prepared using one-step filter paper assisted templated method. The phase structures of the products were investigated by X-ray powder diffraction (XRD) and infrared spectroscopy (FT-IR ...
Hongyan Sun   +5 more
doaj   +1 more source

Performance of Three Enzymic Methods for Filter Paper Glucose Determination [PDF]

open access: yesAnnals of Clinical Biochemistry: International Journal of Laboratory Medicine, 1984
Collection of blood spots on filter paper offers a practical alternative for home monitoring of diabetic patients. We have compared the merits of three protein precipitants, trichloracetic acid (TCA), perchloric acid (PCA) and sulphosalicylic acid (SSA) for the elution of glucose from the filter paper, and their subsequent effects on three enzymic ...
J M, Burrin, C P, Price
openaire   +2 more sources

Facile Preparation of Nanostructured, Superhydrophobic Filter Paper for Efficient Water/Oil Separation. [PDF]

open access: yesPLoS ONE, 2016
In this paper, we present a facile and cost-effective method to obtain superhydrophobic filter paper and demonstrate its application for efficient water/oil separation.
Jianhua Wang   +4 more
doaj   +1 more source

New methods for the estimation of Takagi-Sugeno model based extended Kalman filter and its applications to optimal control for nonlinear systems [PDF]

open access: yes, 2012
This paper describes new approaches to improve the local and global approximation (matching) and modeling capability of Takagi–Sugeno (T-S) fuzzy model. The main aim is obtaining high function approximation accuracy and fast convergence. The main problem
Al-Hadithi, Basil M.   +2 more
core   +1 more source

Filter paper-based spin column method for cost-efficient DNA or RNA purification.

open access: yesPLoS ONE, 2018
We describe herein a method of recharging used commercial spin columns or assembling homemade spin columns using filter paper as binding material for cost-effective, low throughput nucleic acid purification.
Rui Shi, Ramsey S Lewis, Dilip R Panthee
doaj   +1 more source

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