Results 1 to 10 of about 4,190,177 (248)

Synthesis of PbTiO3 nanoplates by two-step hydrothermal method with pH-adjusting agent of ammonia solution

open access: yesJournal of Asian Ceramic Societies, 2022
PbTiO3 nanoplates were synthesized by a two-step hydrothermal method, and ammonia solution was chosen as a pH-adjusting agent. The effect of ammonia concentration in the second-step precursors, Pb-Ti feedstock concentration, reaction temperature, and ...
Guangyuan Yang   +5 more
doaj   +1 more source

Filtration Performance Degradation of In‐Use Masks by Vapors from Alcohol‐Based Hand Sanitizers and the Mitigation Solutions

open access: yesGlobal Challenges, 2021
In the current COVID‐19 pandemic, wearing masks and hand disinfection are widely adopted hygiene practices. Alcohol‐based sanitizers are commonly used for hand disinfection, however, the alcohol vapors can dissipate the charges on electrostatic filters ...
Weidong He   +4 more
doaj   +1 more source

Fenomena Penggunaan Filter Wajah Augmented Reality Instagram dikalangan Mahasiswa Ilmu Komunikasi Angkatan 2019 Universitas Pattimura, Ambon

open access: yesBaileo, 2023
The article aims to describe the reasons, actions and meanings of using face filters or augmented reality. This research uses a phenomenological approach and uses and gratification theory.
Yaser Bin Sulaiman   +2 more
doaj   +1 more source

Modernisation of filter design with bulk dispersed media [PDF]

open access: yesE3S Web of Conferences, 2023
The object of research in this article is the design of the filter with bulk dispersed media; this type of device has a wide application within the framework of water treatment for technological needs of food enterprises.
Rudnev Sergey   +2 more
doaj   +1 more source

filtering sinyal menggunakan bandpass filter

open access: yesJ-ICOM - Jurnal Informatika dan Teknologi Komputer, 2021
Multilevel Marketing (MLM) business visualizes a business network into a hierarchical tree consisting of relationships between nodes. In its application, a branch is generated from each node which when visualized becomes a tree with a height that continues to increase and will consume space which will have an impact in terms of less than optimal data ...
Muliadi, Agus, Muttaqin, Khairul
openaire   +3 more sources

Application of a Photocatalyst as an Inactivator of Bovine Coronavirus

open access: yesViruses, 2020
Bovine coronavirus (BCoV), a major causative pathogen of bovine enteric and respiratory diseases and a zoonotic pathogen transmissible between animals and humans, has led to severe economic losses in numerous countries.
Nobuki Yoshizawa   +5 more
doaj   +1 more source

Filtering via Simulation: Auxiliary Particle Filters [PDF]

open access: yesJournal of the American Statistical Association, 1999
This article analyses the recently suggested particle approach to filtering time series. We suggest that the algorithm is not robust to outliers for two reasons: the design of the simulators and the use of the discrete support to represent the sequentially updating prior distribution. Here we tackle the first of these problems.
Michael K Pitt, Neil Shephard
openaire   +5 more sources

Influência de diferentes concentrações dos fitorreguladores ácido 6-benzilaminopurina e ácido naftalenoacético na propagação vegetativa de Malva sylvestris L.

open access: yesRevista Brasileira de Plantas Medicinais, 2014
Malva sylvestris L. (família Malvaceae), conhecida como malva, é uma espécie medicinal nativa da Europa, cultivada no sul do Brasil. A espécie tem propriedade adstringente, suaviza a irritação dos tecidos e reduz inflamações, entre outras características
M. Filter, E.M. De Freitas, E. Périco
doaj   +3 more sources

On the spectral factor ambiguity of FIR energy compaction filter banks [PDF]

open access: yes, 2006
This paper focuses on the design of signal-adapted finite-impulse response (FIR) paraunitary (PU) filter banks optimized for energy compaction (EC). The design of such filter banks has been shown in the literature to consist of the design of an optimal ...
Tkacenko, Andre, Vaidyanathan, P. P.
core   +1 more source

MATHEMATICAL MODELING OF WATER PURIFICATION WITH FILTER

open access: yesNauka ta progres transportu, 2020
Purpose. To analyze the effectiveness of water purification in water treatment systems, an important task is the development of mathematical models that allow determining the degree of water purification at the design stage.
V. D. Petrenko   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy