Results 11 to 20 of about 114,837 (310)

High Stop Band Rejection for Ceramic Loaded Waveguide Filters

open access: yesIEEE Access, 2020
This Paper describes the design procedure of a compact narrowband ceramic loaded filters with wide out of band response. The idea of loading the waveguide filter resonators with ceramic TEM blocks and ceramic ridge blocks are presented. Resonator loading
Sharjeel Afridi   +5 more
doaj   +1 more source

A study on effects of ceramic foam filter on flow aspect through water modeling experiment [PDF]

open access: yesChina Foundry, 2017
Casting defects that are closely related to entrapped air bubbles and metallic oxides occur very frequently in the sand mold casting process. Many researchers have shown that these defects can be reduced by adopting an appropriate gating system design ...
Ho-Young Hwang   +2 more
doaj   +1 more source

Design of RF filters with high selectivity on monolithic ceramic blocks [PDF]

open access: yesITM Web of Conferences, 2019
The paper presents the results of the development of quasielliptic filters on monolithic ceramic blocks. A circuit analysis of equivalent filter circuits is carried out using the coupling matrix method.
Sememya Roman   +2 more
doaj   +1 more source

Evaluation of the adsorption behavior and divalent metal ions removal efficiency of ceramic point-of-use water filter materials

open access: yesEnvironmental Systems Research, 2023
Ceramic water filters (CWFs) are point-of-use devices mostly used in developing countries as a result of their effectiveness in the treatment of household water.
Ohene B. Apea   +3 more
doaj   +1 more source

Evaluation of a Silver-Embedded Ceramic Tablet as a Primary and Secondary Point-of-Use Water Purification Technology in Limpopo Province, S. Africa. [PDF]

open access: yesPLoS ONE, 2017
The World Health Organization (WHO) recognizes point-of-use water treatment (PoUWT) technologies as effective means to improve water quality. This paper investigates long-term performance and social acceptance of a novel PoUWT technology, a silver ...
Beeta Ehdaie   +6 more
doaj   +1 more source

Effect of Filter Thickness on Reoxidation and Mechanical Properties of Aluminium Alloy AlSi7Mg0.3 [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
The melt cleaning is an important aspect in the production of high-quality aluminum castings. Specifically inclusions within the melt and an excessively high hydrogen content lead to defects and undesired porosity in the castings. Although it is possible
M. Bruna, A. Remišová, A. Sládek
doaj   +1 more source

Determination of Soil-Water Characteristic Curves of Unsaturated Sandy Soils Using Membrane Filter with Stainless Wire Mesh [PDF]

open access: yes, 2009
Soil-water characteristic curve (SWCC) is an important soil function in an unsaturated soil mechanics field for design and analyses of any unsaturated earth structures. Determination of SWCC is not easy and more so time consuming. Generally, ceramic disc
Akudago, John Apambilla   +4 more
core   +1 more source

Surface defect detection of Si3N4 ceramic bearing ball based on improved homomorphic filter-Gaussian filter coupling algorithm

open access: yesAIP Advances, 2022
Considering the tiny surface defects of Si3N4 ceramic bearing balls and the low accuracy of defect detection using a single traditional algorithm, we find that the performance of the aerospace mechanical power system is poor.
Dahai Liao   +4 more
doaj   +1 more source

Monolithic integrated ceramic waveguide filters [PDF]

open access: yes2014 IEEE MTT-S International Microwave Symposium (IMS2014), 2014
Design techniques for a new class of integrated monolithic high permittivity ceramic waveguide filters are presented. These filters enable a size reduction of 50% compared to air-filled TEM filters with the same unloaded Q-Factor. Designs for both chebyshev and asymmetric generalized chebyshev filter are presented, with experimental results for an 1800
Hunter, IC, Sandhu, MY
openaire   +2 more sources

Ceramic Filters for the Efficient Removal of Azo Dyes and Pathogens in Water

open access: yesCeramics, 2023
Overcoming the scarcity of safe and sustainable drinking water, particularly in low-income countries, is one of the key challenges of the 21st century. In these countries, the cost of centralized water treatment facilities is prohibitive.
Marvellous Oaikhena   +5 more
doaj   +1 more source

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