Results 21 to 30 of about 3,577 (170)
Evaluation of hydrogel use in the development of Rapanea ferruginea with water restriction by vibrational Fourier Transform Infrared Spectroscopy (FTIR-UATR) [PDF]
Ambiente e Agua - An Interdisciplinary Journal of Applied Science, 2021 This study evaluated the use of hydrogel on the development of Rapanea ferruginea under water restriction through Vibrational Fourier Transform Infrared Spectroscopy (FTIR-UATR). Seedlings of approximately 30 cm height were transferred in pots with 3 L of soil. The group of seedlings was separated into 5 different triplicate treatments according to the
Pereira, Douglas Cubas +2 more
openaire +4 more sources
An Underwater Acoustic Target Recognition Method Based on Spectrograms with Different Resolutions
Journal of Marine Science and Engineering, 2021 This paper focuses on the automatic target recognition (ATR) method based on ship-radiated noise and proposes an underwater acoustic target recognition (UATR) method based on ResNet.
Xinwei Luo +4 more
doaj +1 more source
Design of Siamese Network for Underwater Target Recognition with Small Sample Size
Applied Sciences, 2022 The acquisition of target data for underwater acoustic target recognition (UATR) is difficult and costly. Although deep neural networks (DNN) have been used in UATR, and some achievements have been made, the performance is not satisfactory when ...
Dali Liu +4 more
doaj +1 more source
A two-step approach to achieve secondary amide transamidation enabled by nickel catalysis. [PDF]
, 2016 A long-standing challenge in synthetic chemistry is the development of the transamidation reaction. This process, which involves the conversion of one amide to another, is typically plagued by unfavourable kinetic and thermodynamic factors. Although some
Anthony, Sarah M +4 more
core +2 more sources
FT-IR/UATR and FT-IR transmission quantitative analysis of PBT/PC blends
Polymer Testing, 2020 Abstract Polymer blends are produced to achieve properties that pure polymers are unable to. The qualitative analysis of these blends is not always satisfactory to point out failures in the final product and, therefore, the determination of their content might be required.
Ana Carolina Ferreira +4 more
openaire +1 more source
Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan, 2021 Tingginya akumulasi sampah plastik di perairan Indonesia dapat meningkatkan potensi cemaran mikroplastik. Ikan dan garam merupakan bahan baku utama pembuatan ikan pindang yang keduanya berpotensi membawa berbagai bahan cemaran, termasuk mikroplastik ...
Gunawan Gunawan +2 more
doaj +1 more source
Sensors, 2013 The main objective of this study was to use infrared spectroscopy to identify vegetable oils used as raw material for biodiesel production and apply multivariate analysis to the data.
Rosana de Cássia de Souza Schneider +4 more
doaj +1 more source
Taming tosyl azide: the development of a scalable continuous diazo transfer process [PDF]
, 2016 Heat and shock sensitive tosyl azide was generated and used on demand in a telescoped diazo transfer process. Small quantities of tosyl azide were accessed in a one pot batch procedure using shelf stable, readily available reagents. For large scale diazo
Collins, SG +5 more
core +1 more source
Off-line TLC-IR (UATR) characterization of additives in EPDM rubber
Polymer Testing, 2019 Abstract Sulfur donor accelerators and vulcanization agents, such as peroxides, due to their chemical characteristics and good thermal stability properties in rubber formulations, are essential to provide solutions in different sectors, such as aerospace and automotive, since they reduce the polymer degradation process (reversal), which can influence
Lidia Mattos Silva Murakami +4 more
openaire +1 more source
Development and characterization of sodium polyacrylate/bentonite hydrogel with epoxy resin coating [PDF]
Polímeros, 2023 Composites are relevant to high-performance materials in the aerospace sector and have attracted the attention of the scientific and technological communities. Bentonites present very fine granulometry which enables their use in composites.
Marcia Murakoshi Takematsu +5 more
doaj +1 more source