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Online since: October 2025
Authors: Riza Wirawan, Imam Abdurrahman, Ronaldo Wijaya, Lia Amelia Tresna Wulan Asri
The use of GFRP causes weight reduction, dimensional stability, and heat resistance, which are provided by the fibres [3].
This conclusion is based on visual analysis of the images in Figure 1 and is consistent with the data presented in Table 1, which demonstrates a positive correlation between alkali treatment duration and swelling percentage.
Moreover, the reduction in tensile strength and the corresponding increase in elongation strength observed in both treated and untreated composites are consistent with the statement of Zulkipli et al. [21].
According to their study, treatment can decrease the crystallinity degree of fibres and increase the amount of amorphous fibres, which leads to a reduction in tensile strength and an increase in acceptable elongation.
Online since: April 2018
Authors: Lei Deng, Peng Zhou, Xin Yun Wang
The average grain size is 11.29 µm and the percentage of LABs is 7.5% through the EBSD data.
Increase of strain to 0.5 leads to the reduction of the Goss texture component and the generation of the cube texture component (Fig. 6b).
The reduction of Goss texture component is also happened under hot compression (Fig. 7a-c).
The frequency of LABs is significantly larger than those at other temperatures during tension for the reduction of dislocation migration. 4.
Online since: July 2024
Authors: Huma Matloob
Introduction Sustainable building is gaining significant attention, with principles focusing on energy efficiency, water conservation, waste reduction, and integration of renewable energy [1, 2, 3].
By 2030, over 10% reduction in global energy consumption can be achieved just by implementing energy efficient practices in buildings [7].
Significant potential for reduction through sustainable materials and techniques.
Vertical Solar System by U-Solar Clean Energy Solutions at the Data Center Mumbai.
Online since: August 2021
Authors: Alexander V. Shaparev
Relative reduction during cladding affects bimetal layers adhesion strength, character of microstructure, the size of recrystallized grains, strip mechanical properties, and dimensional accuracy [7].
However, in this case, any known technological schemes for the production of bimetal 1 with the thickness of 3.2 mm by a cold cladding method turn out to be ineffective due to impossibility of achieving required reduction during cladding and, thus, the impossibility of obtaining strips with strong adhesion of layers.
From processing the experimental data, the following regression equation was obtained with an error less than 3.5%: εСC=0,.580-0,.0308X1-0,.0628X2
Savin, Calculation of the amount of the reduction required for the formation of compound layers during cold rolling of bimetals, Materials Science Forum, Vol. 870 (2016), pp. 328-333, 2016 https://doi.org/10.4028/www.scientific.net/MSF.870.328
Online since: March 2015
Authors: Hai Yan Zhang, Yan Jun Zhang, Mei Yu Zhang, Dong Wei Cao, Hong Li Wang, Yan Ju Chen, Min He
However, the continuous reduction of high-quality oil sources caused by constant consumption of petroleum has intensified the imbalance between supply and demand of asphalt, which results in the price of asphalt increasing successively and has heavily affected the development of road industry, it is therefore badly in need of developing a kind of new material to replace petroleum asphalt.
Results and discussion 2.1 Analysis on aging performance It has been found during the study on the aging of petroleum asphalt that it shows the features of hardening, visco-elasticity decreasing and viscosity increasing with the aging, reduction of aromatics in asphalt and the increasing content of asphaltene.
Table 1 Data of bio-asphalt viscosity changing with the holding time (Pa·S) Holding time (h) 0.5 1 1.5 2 2.5 Rate of increase (Pa·S·h-1) Bio-I 0.35 0.43 0.54 0.64 0.76 0.20 Bio-II 0.34 0.39 0.47 0.52 0.54 0.11 Bio-III 0.19 0.20 0.23 0.26 0.30 0.05 Bio-IV 10.67 16.60 25.20 33.90 40.66 15.46 From Table 1, it is observed that the Brookfield viscosity of four kinds of bio-asphalt increases rapidly with the increase of holding time, relatively, the rate of increase of bio-asphalt produced via the method of catalytic hydrogenation is the minimum of 0.05 Pa·S·h-1, that of oxidized bio-asphalt produced via the method of water extraction is the maximum of 15.46 Pa·S·h-1, those of bio-asphalt produced via the method of reduced pressure distillation and BHT bio-asphalt fall in between, which shows that the oxidized bio-asphalt via the method of water extraction has the strongest activity and is the easiest to age, but the bio-asphalt produced via the method of catalytic hydrogenation has poor
All of the abovementioned indicate that the bio-asphalt produced via the method of catalytic hydrogenation has had part of aldehyde, ketone and carbon-carbon double bond removed [6], which results in the reduction of the content of active functional groups and the rate of increase of Brookfield viscosity.
Online since: September 2015
Authors: Yufridin Wahab, Syed Idris Syed Hassan, Liew Hui Fang, Nurhakimah Mohd Mukhtar, Fareq Malek
The advantages of using DGS [10-12] are, reduction of fabrication cost and size of circuit, improve the performance of low pass filter and the microstrip line structure are easily to achieve by modeling of the simple of RLC circuits.
Whereas, the disadvantages of LTCC technologies are will influence more of fabrication process are not mature and much process development is still on-going and for both the integral passive components and the materials themselves, the RF characteristic data are not possible available.
When the reduction is done by more layers with the cost of fabrication become more complexity. 2.5 Miniaturization By Using Higher Dielectric Constants Ming [20], describe the compact microstrip cross-coupled trisection bandpass filter size can be reducing by using higher dielectric substrate.
The objective of miniaturize a devices size are lead to a reduction in the manufacturing cost and improvement in reliability.
Online since: March 2016
Authors: Rodziah Nazlan, Wan Norailiana Wan Ab Rahman, Ismayadi Ismail, Nor Hapishah Abdullah, Idza Riati Ibrahim, Fadzidah Mohd Idris, Khamirul Amin Matori, Mansor Hashim, Zaidan Abdul Wahab
The data was compared in terms of their parallel evolving morphology and the thermal diffusivity.
The reduction in grain size in the initial stage of sintering was subjected to the rearrangement of particles and also due to carbonate decomposition.
Thus, the thermal diffusivity values displaying reduction of thermal diffusivity at high temperature even for the same nanosized grains.
The presence of porosity significantly reduced the thermal diffusivity, due to reduction in thermal conduction pathways [11].
Online since: October 2015
Authors: Gavrilă Calefariu, Flavius Sarbu, Sorin Adrian Barabas, Adriana Florescu
Reduction of these unwanted effects by optimizing the parameters of the system leads to efficiency of abrasive water jet cutting process.
Machinability used by IntelliMax software for different types of materials is the OMAX machinability whose data were used in drawing graph presented in Fig. 2.
Optimization results in increased dimensional precision, increased surface quality, increased durability nozzle, reducing the cost price, reduction of scrap, reduction of abrasive consumption.
Online since: January 2023
Authors: Dian Mughni Fellicia, Rochman Rochiem, Contardo Ferrini Noval Adrinanda, Adhy Prihatmiko Wibowo, Widyastuti Widyastuti
Data obtained from XRD testing were also utilized for calculating the residual stress that were present in the specimen.
The test result shows that there is a slight hardness reduction in 300oC annealing temperature specimen due to small gap between annealing and the recrystalization temperature which is at 290oC resulting only in recovery process (the first stage of the annealing process) [10].
On the othe hand, there is no significant hardness reduction from 500oC to 600oC annealing temperature which implies that recrystalization process is finished and only grain growth was occurred [10].
This phenomenon is corresponding with the experiment, which was done by Kabash, where brass alloy is experiencing a notable drop between 400oC and 500oC followed by slight reduction after 500oC annealing temperature.
Online since: October 2019
Authors: Sukangkana Talangkun, Onthida Kosasang, Autsadawooth Kummoo, Ratchapol Konghakot
The reduction may arise from irregular distribution of fly ash in the composite.
Obi et al. [10] and Bieniaś et al. [11] reported the reduction in Ecorr as fly ash content increase in Al-Mg alloy and Al-Si based alloy respectively.
Fig. 5 Potentiodynamic polarization curves of different specimens in 5wt% NaCl Table 3 Electrochemical data of Al6061-fly ash composite Sample Ecorr [V] Epit [V] Icorr [µA/cm2] Al6061 -0.66 -0.60 1.42 5 wt% fly ash -0.90 -0.61 2.44 7 wt% fly ash -1.05 -0.62 4.23 10 wt% fly ash -1.21 - 8.60 Fig. 6 shows typical SEM images of the corroded surfaces of Al6061 and Al6061-fly ash composites after the pitting had taken place.
According to Marin et al.[17] EDXS analysis, there was a significant reduction of Ca after corrosion tests in Al-fly ash composite.
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