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Browsing by Subject "% reductions"

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Effect of sugar palm fibers on the properties of blended wheat starch/polyvinyl alcohol (PVA) -based biocomposite films
(Elsevier Editora Ltda, 2023)
Mohammed A.A.B.A.
;
Hasan Z.
;
Borhana Omran A.A.
;
Elfaghi A.M.
;
Ali Y.H.
;
Akeel N.A.A.
;
Ilyas R.A.
;
Sapuan S.M.
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57221522906
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36240521500
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58155184500
;
36026821800
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56225555300
;
57370051400
;
57196328367
;
35230794000
Sugar palm fiber has been added to reinforce starch, polyvinyl alcohol (PVA) based film. The effect of reinforcement on different properties has been studied. It has been found that reinforcing plasticized starch/PVA matrix with palm fibers has considerably enhanced physical properties, the density of the polymer declined to 1.21 g/cm� with untreated fibers and to 1.32 g/cm� with treated fibers, which created a lighter weight bioplastic, and a reduction occurred in water absorption (for example 3% of treated fiber showed 143% absorbed water after 30 min immersing in water) and water solubility. When compared to the films without fibers filler, films reinforced with fibers demonstrated a c3onsiderable improvement in the crystal profile
33
Mechanical Properties of Hybrid Lignocellulosic Fiber-Reinforced Biopolymer Green Composites: A Review
(Korean Fiber Society, 2023)
Asyraf M.R.M.
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Syamsir A.
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Ishak M.R.
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Sapuan S.M.
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Nurazzi N.M.
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Norrrahim M.N.F.
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Ilyas R.A.
;
Khan T.
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Rashid M.Z.A.
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57205295733
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57195320482
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36809587400
;
35230794000
;
55899483400
;
55924430000
;
57196328367
;
57201669584
;
57221960339
Sustainability has been a global awareness due to the serious reduction of synthetic materials, especially petroleum. Many sectors and researchers have shifted toward lignocellulosic fibers from biomass wastes to replace synthetic fibers and reinforced bio-based polymer composites. The shift in composite landscape toward green composites is due to their availability, low carbon emission, and biodegradability. Generally, green composites can be hybridized with various lignocellulosic fibers and they have high potential in the civil and automotive fields due to their mechanical performance. Nevertheless, research has found that they have inappropriate matches for the unique material attributes of green composites even though many studies have covered this topic. Studies on the mechanical performance of hybrid natural fibers green composites are still very limited. Overall, there are various mechanical properties of hybrid lignocellulosic fibers depending on their physical properties, orientation and sequence, treatments, polymers, and fabrication methods. From these considerations, a series of matching application properties are explained: these include structural applications for many industries. Thus, this review article establishes critical discussions on the mechanical properties of hybrid natural fibers reinforced biopolymer green composites. Some studies have identified the research gaps and deduced that the potential applications of hybrid green composites have not been explored. � 2023, The Author(s), under exclusive licence to the Korean Fiber Society.
10
Physical and Chemical Investigation of TiO2Nanotubes Treated with Isopropyl Triisostearoyl Titanate (KR-TTS)
(Hindawi Limited, 2023)
Sabri B.A.
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Satgunam M.
;
Manap A.
;
Gnanasagaran C.L.
;
Ramachandran K.
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57221737520
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48561725600
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57200642155
;
57927748800
;
57222623565
The aim of this study is to investigate the effect of isopropyl triisostearoyl titanate (KR-TTS) as a titanate coupling agent (TCA) on surface modification of TiO2 nanotube (TNT) material. From the physical and chemical studies that have been performed on the modified TiO2 nanotube, scanning electron microscope micrographs, energy-dispersive X-ray and viscosity indicated that there was significant reduction in particle aggregation of the modified TiO2 Nanotube. FTIR spectroscopy confirmed that the functional group of the TCA reacted with the hydroxyl groups present on the surface of TiO2 nanotube resulting in an altered surface property from being hydrophilic to hydrophobic. X-ray diffraction indicated that crystalline structure did not change upon the modification with the coupling agent. Isopropyl triisostearoyl titanate (KR-TTS) is found to be superior in performance and has a significant effect on the dispersion and resolving of agglomeration. This paper presents the effect of surface modification with the TCA of isopropyl triisostearoyl titanate (KR-TTS) type on the TiO2 nanotube material. � 2023 Ban Ali Sabri et al.
6
Social Acceptance and Preference of EV Users - A Review
(Institute of Electrical and Electronics Engineers Inc., 2023)
Ramachandaramurthy V.K.
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Ajmal A.M.
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Kasinathan P.
;
Tan K.M.
;
Yong J.Y.
;
Vinoth R.
;
6602912020
;
57217176335
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57194393495
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56119108600
;
56119339200
;
57365358000
Electric vehicles (EVs) are drawing increasing attention, given the volatile fuel prices and impending reduction in fuel supplies. EVs are also preferred in the automotive industry as they reduce the environmental impact and fuel consumption while achieving a higher efficiency when compared to internal combustion engine vehicles (ICEVs). Although most of energy and environmental policies worldwide have set targets with the goal to shift from classic fossil fuel driven vehicles to electrified transport, the share of EVs is still rather low. The complexity of changing the human perception of transportation goes beyond technical and economic aspects and very few research activities managed to capture the additional factors. This paper presents a comprehensive review of studies on consumer preferences for EV, aiming to better inform policy-makers and give direction to further research. In addition, this paper discusses the main obstacles that limit the social acceptance in adopting EVs such as driving obstacles, charging obstacles and willingness-to-pay from consumers. Furthermore, mitigation strategies are outlined as the recommendation to promote a better EV deployment. � 2013 IEEE.
8
Towards lowering computational power in IoT systems: Clustering algorithm for high-dimensional data stream using entropy window reduction
(Elsevier B.V., 2023)
Alkawsi G.
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Al-amri R.
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Baashar Y.
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Ghorashi S.
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Alabdulkreem E.
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Kiong Tiong S.
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57191982354
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57224896623
;
56768090200
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57219241229
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55320872600
;
57219799117
In a world of connectivity empowered by the advancement of the Internet of Things (IoT), an infinite number of data streams have emerged. Thus, data stream clustering is crucial for extracting hidden knowledge and data mining. Various data stream clustering methods have lately been introduced. Yet, the majority of such algorithms are affected by the curse of high dimensionality. Lately, a fully online buffer-based clustering algorithm for handling evolving data streams (BOCEDS) was developed. Similarly to other existing density-based clustering methods, BOCEDS is not capable of handling high-dimensional data and has high computational power and high memory utilization. This paper introduces an Entropy Window Reduction (EWR) algorithm, which is an improved version of the BOCEDS technique. EWR is a fully online clustering technique for handling high-dimensional data streams using feature ranking and sorting. This process is accomplished by calculating the entropy of specific features with respect to the time window. The findings of the experiments are compared to the outcomes of BOCEDS, CEDAS, and MuDi-Stream algorithms. The outcomes indicate that the EWR algorithm outperformed the baseline clustering algorithms. The results are demonstrated using the KDDCup�99 dataset in terms of quality and complexity evaluation on the average of F-Measures, Jaccard Index, Fowlkes�Mallows index, Purity, and Rand Index as well as the memory usage and computational power with 88%, 66%, 81%, 100%, and 66%, respectively. The results also show low memory usage and computing power in comparison with the baseline algorithms. � 2023 THE AUTHORS
20

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