يهدف هذا البحث إلى دراسة عُرف مجتمع المننجكابو في سومطرة الغربية في مسألة توزيع الحقوق المالية، وبيان موقف الشرع من توزيعها حسب العادات والأعراف الاجتماعية. والغريب أن هذا المجتمع السومطري ل
In pandemic Covid-19, mental health and well-being become one of the major concerns for human beings for appeasement in every sphere of life. During a lockdown, the pressure and stress have led to the financial burden, increasing depression, suicides and anxiety. Correspondingly, use of devices, intenet and mobile applications are increasing and di
ASEAN countries have recently proposed the frequency band (4.5–5.5) GHz for fifth generation (5G) cellular communication, which necessitates the creation of an ultra-wideband (UWB) antenna to accommodate the band-notched function. To describe the compact shape of a UWB antenna in the context of 5G application, this article has introduced a variab
For fifth generation (5G) lower band wireless application at a frequency of (4.5–5.5) GHz, recently ASEAN region countries have suggested 5G forums and band rejection antennas for 5G (4.5–5.5) GHz lower band. A UWB antenna has been constructed and suggested by use of the Roger RT5880 with defected ground on a rectangular radiating patch and a r
In ASEAN countries, the fifth generation (5G) forum proposed a 5G application lower frequency band (4.5–5.5) GHz and the fixed satellite service (FSS) C-band at (3.3–4.2) GHz. Previous research works have demonstrated that the complexity of antenna design, large size and in most of the cases, active elements that were added to antenna has made
This paper aims to synthesize high purity nano-sized silica from rice husk ash (RHA) by chemical method and investigate its physical and chemical properties. Through a controlled burning of rice husk, the white-colored RHA is obtained. Next, the RHA is subjected to the pre-treatment of acid leaching and thermal treatment. The synthesizing process h
