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530  Articles
1 of 53 pages  |  10  records  |  more records»
Saat ini penelitian tentang radar absorbing structure (RAS) dengan menggunakan bahan komposit polimer yang diperkuat serat (FRP) yang ditambahkan dengan serbuk penyerap gelombang elektromagnetik menjadi populer karena sifat elektromagnetik dari material t... see more

Let G be a group with identity e. Let R be a G-graded commutative ring, M be a graded R-module and n be a positive integer. In this article, we introduce and study the concepts of graded n-absorbing submodules. Various properties of graded n-absorbing sub... see more

The spinel cobalt chromium zinc ferrites (Co0.7Cr0.1Zn0.2Fe2O4) and the polyaniline (PANI)-Co0.7Cr0.1Zn0.2Fe2O4 composites were prepared by polyacrylamide gel and an in situ polymerization method, respectively. The structure of the synthesized material wa... see more

This paper focuses on the honeycomb cores with absorbing coatings, the effective permittivity is predicted and the absorption property is optimized. The correctness of effective results is verified by experimental measurement, numerical simulation and the... see more

The efficiency of using the new prospective elastomeric absorbing devices (P?KE-110, EPA-120), the polymeric absorbing device P??P-110 and the hydro-polymeric device GP-120? for reducing longitudinal loading of a car in the operation conditions has been s... see more

The article discusses the use Markov chains to research models that reflect the essential properties of systems, including methods of measuring the parameters of projects and assess their effectiveness. In the study carried out by its decomposition system... see more

This paper concerns the results of comparative research into the acoustical properties of rubber granulates derived from the recycling of conveyor belts production waste. In the process of recycling it is possible to obtain pure granulated rubber and form... see more

Sintesis dan karakterisasi material Ni-SiO2 telah dilakukan secara sol-gel meggunakan prekursor Tri ethyl orthosilicate (TEOS), asam citrat dan nikel (II) nitrat. Penelitian ini bertujuan untuk mendapatkan bahan microwave absorber magnetik  yang memp... see more

The room that used to hold the speech activity needs a good acoustical quality. To determine the acoustical quality of a room the experimental research was conducted to find the relationship between the determination of acoustical absorbing materials and ... see more

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