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Journal articles on the topic 'Fractone'

Author: Grafiati

Published: 3 June 2025

Last updated: 19 July 2025

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1

Chyba, Monique, and Aaron Tamura-Sato. "Morphogenesis modelization of a fractone-based model." Discrete & Continuous Dynamical Systems - B 22, no. 1 (2017): 29–58. http://dx.doi.org/10.3934/dcdsb.2017002.

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Kerever, Aurelien, Taihei Yamada, Yuji Suzuki, Frederic Mercier, and Eri Arikawa-Hirasawa. "Fractone aging in the subventricular zone of the lateral ventricle." Journal of Chemical Neuroanatomy 66-67 (July 2015): 52–60. http://dx.doi.org/10.1016/j.jchemneu.2015.06.001.

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Blanchard, D. Caroline, Erwin B. Defensor, Ksenia Z. Meyza, et al. "BTBR T+tf/J mice: Autism-relevant behaviors and reduced fractone-associated heparan sulfate." Neuroscience & Biobehavioral Reviews 36, no. 1 (2012): 285–96. http://dx.doi.org/10.1016/j.neubiorev.2011.06.008.

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4

Melrose, James. "Fractone Stem Cell Niche Components Provide Intuitive Clues in the Design of New Therapeutic Procedures/Biomatrices for Neural Repair." International Journal of Molecular Sciences 23, no. 9 (2022): 5148. http://dx.doi.org/10.3390/ijms23095148.

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The aim of this study was to illustrate recent developments in neural repair utilizing hyaluronan as a carrier of olfactory bulb stem cells and in new bioscaffolds to promote neural repair. Hyaluronan interacts with brain hyalectan proteoglycans in protective structures around neurons in perineuronal nets, which also have roles in the synaptic plasticity and development of neuronal cognitive properties. Specialist stem cell niches termed fractones located in the sub-ventricular and sub-granular regions of the dentate gyrus of the hippocampus migrate to the olfactory bulb, which acts as a reser

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Douet, V., A. Kerever, E. Arikawa‐Hirasawa, and F. Mercier. "Fractone‐heparan sulphates mediate FGF‐2 stimulation of cell proliferation in the adult subventricular zone." Cell Proliferation 46, no. 2 (2013): 137–45. http://dx.doi.org/10.1111/cpr.12023.

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Douet, Vanessa, Eri Arikawa-Hirasawa, and Frederic Mercier. "Fractone-heparan sulfates mediate BMP-7 inhibition of cell proliferation in the adult subventricular zone." Neuroscience Letters 528, no. 2 (2012): 120–25. http://dx.doi.org/10.1016/j.neulet.2012.08.077.

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Nascimento, Marcos Assis, Lydia Sorokin, and Tatiana Coelho-Sampaio. "Fractone Bulbs Derive from Ependymal Cells and Their Laminin Composition Influence the Stem Cell Niche in the Subventricular Zone." Journal of Neuroscience 38, no. 16 (2018): 3880–89. http://dx.doi.org/10.1523/jneurosci.3064-17.2018.

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Mercier, Frederic, and Vanessa Douet. "Bone morphogenetic protein-4 inhibits adult neurogenesis and is regulated by fractone-associated heparan sulfates in the subventricular zone." Journal of Chemical Neuroanatomy 57-58 (May 2014): 54–61. http://dx.doi.org/10.1016/j.jchemneu.2014.03.005.

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Meyza, Ksenia Z., D. Caroline Blanchard, Brandon L. Pearson, Roger L. H. Pobbe, and Robert J. Blanchard. "Fractone-associated N-sulfated heparan sulfate shows reduced quantity in BTBR T+tf/J mice: A strong model of autism." Behavioural Brain Research 228, no. 2 (2012): 247–53. http://dx.doi.org/10.1016/j.bbr.2011.11.004.

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Maeda, Daisuke, and Osamu Kawano. "Effect of Martensite Fraction on Void Nucleation Behavior and Ductility in DP Steels." Materials Science Forum 783-786 (May 2014): 875–79. http://dx.doi.org/10.4028/www.scientific.net/msf.783-786.875.

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Void nucleation behavior of ferrite/martensite dual phase steels varying martensite fraction was investigated. As easily recognized, void fraction was increased with strain induced, and more voids were nucleated in the sample with higher martensite fraction. On the other hands, void fraction at ductile fracture was decreased with increasing martensite fraction. Void nucleation was observed to occur due to the fracture of martensite in DP steels. In the sample with high martensite fraction, many micro voids were nucleated at initial deformation with small strain and lead to ductile fracture. In

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11

Blanchard, D. Caroline, Erwin B. Defensor, Ksenia Z. Meyza, et al. "Addendum to ‘BTBR T+tf/J mice: Autism-relevant behaviors and reduced fractone-associated heparan sulfate’ [Neurosci. Biobehav. Rev. 36 (1) (2012) 285–296]." Neuroscience & Biobehavioral Reviews 36, no. 10 (2012): 2370. http://dx.doi.org/10.1016/j.neubiorev.2012.09.005.

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12

Blanchard, D. Caroline, Erwin B. Defensor, Ksenia Z. Meyza, et al. "Corrigendum to “BTBR T+tf/J mice: Autism-relevant behaviors and reduced fractone-associated heparan sulfate” [Neurosci. Biobehav. Rev. 36 (January (1)) (2012) 285–296]." Neuroscience & Biobehavioral Reviews 36, no. 4 (2012): 1265. http://dx.doi.org/10.1016/j.neubiorev.2012.02.001.

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13

Zhou, Xing, Ruifeng Dong, Yuchang Xie та ін. "Effect of Primary γ′ Phase on High-Temperature Endurance Performance of GH4720Li Superalloy". Crystals 14, № 10 (2024): 851. http://dx.doi.org/10.3390/cryst14100851.

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Abstract: To investigate the effect of the primary γ′ phase on the high-temperature endurance performance of GH4720Li superalloy, samples with different volume fractions of the primary γ′ phase were prepared by adjusting the heat treatment process. The high-temperature endurance performance was tested, and the microstructure was examined. Results indicate that samples with a higher volume fraction of the γ′ phase exhibit a greater stress rupture life. Additionally, alloy samples with varying γ′ phase volume fractions show improved plasticity and toughness at 760 °C/530 MPa. Fracture morphology

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14

Atallah, Marwa Subhi. "Mechanical and physical properties of carbon nano tubes with kevlar fiber reinforced with polyester resin." Iraqi Journal of Physics (IJP) 14, no. 31 (2019): 71–80. http://dx.doi.org/10.30723/ijp.v14i31.173.

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In this research study Hardness (shore D), Water absorption,Flexural, Impact Test, and Fracture Toughness of polymer nanocomposites. The polymer nano composites based on unsaturatedpolyester resin reinforced with Kevlar fibers (K.F). The samples areattended by hand lay – up method according to (Rule mixture) forvarious volume fractions of unsaturated polyester resin, fiber andcarbon nanotube. The polyester resin was matrix strengthened with3% volume fraction from Kevlar fiber and (0.5%, 1%, 1.5%, 2%)volume fractions of carbon nanotube. The water absorption, hardness(shore D), flexural test, im

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15

Sovják, Radoslav, Petr Máca, and Tomáš Imlauf. "EFFECT OF FIBRE ASPECT RATIO AND FIBRE VOLUME FRACTION ON THE EFFECTIVE FRACTURE ENERGY OF ULTRA-HIGH-PERFORMANCE FIBRE-REINFORCED CONCRETE." Acta Polytechnica 56, no. 4 (2016): 319–27. http://dx.doi.org/10.14311/ap.2016.56.0319.

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<p>This paper investigates the effective fracture energy of UHPFRC with various fibre volume fractions and various fibre aspect ratios. We have concluded that the effective fracture energy is dependent on both the fibre volume fraction and the fibre aspect ratio. In addition, we have found that both dependencies follow a linear trend.</p>

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16

Phipps, M. A., G. Pritchard, and A. Abou-Torabi. "The Role of Particle Strength and Filler Volume Fraction in the Fracture of Alumina Trihydrate Filled Epoxy Resins." Engineering Plastics 3, no. 2 (1995): 147823919500300. http://dx.doi.org/10.1177/147823919500300201.

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The critical strain energy release rate, Glc, and the critical stress intensity factor or fracture toughness, Klc, of alumina trihydrate (ATH) filled epoxy resin have been determined as a function of filler volume fraction, using tapered double cantilever beam and single edge notch geometries respectively. GIc showed a maximum at a filler volume fraction of approximately 0.18. The fracture toughness increased linearly up to a filler volume fraction of 0.55. It is proposed that the predominant toughening mechanism depends on the volume fraction of filler and that ATH particles are strong enough

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Phipps, M. A., G. Pritchard, and A. Abou-Torabi. "The Role of Particle Strength and Filler Volume Fraction in the Fracture of Alumina Trihydrate Filled Epoxy Resins." Polymers and Polymer Composites 3, no. 2 (1995): 71–77. http://dx.doi.org/10.1177/096739119500300201.

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The critical strain energy release rate, Glc, and the critical stress intensity factor or fracture toughness, Klc, of alumina trihydrate (ATH) filled epoxy resin have been determined as a function of filler volume fraction, using tapered double cantilever beam and single edge notch geometries respectively. GIc showed a maximum at a filler volume fraction of approximately 0.18. The fracture toughness increased linearly up to a filler volume fraction of 0.55. It is proposed that the predominant toughening mechanism depends on the volume fraction of filler and that ATH particles are strong enough

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18

Zhang, Peng, and Qing-fu Li. "Effect of polypropylene fiber on fracture properties of high-performance concrete composites." Science and Engineering of Composite Materials 19, no. 4 (2012): 407–14. http://dx.doi.org/10.1515/secm-2012-0049.

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AbstractA parametric experimental study has been conducted to investigate the effect of polypropylene fiber on the workability and fracture properties of high-performance concrete (HPC) composites containing fly ash and silica fume, with the five fiber volume fractions (0.04%, 0.06%, 0.08%, 0.1%, and 0.12%) used. The results indicate that the addition of polypropylene fiber decreases the workability of the HPC composites containing fly ash and silica fume. With the increase in the fiber volume fraction, both of the slump and the slump flow decrease gradually. Furthermore, the addition of polyp

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19

Miura, Hiromi, Taku Sakai, and Günter Gottstein. "Effect of volume fraction of dispersed SiO2 particles on intermediate-temperature embrittlement in Cu–SiO2 polycrystals." Journal of Materials Research 13, no. 11 (1998): 3100–3105. http://dx.doi.org/10.1557/jmr.1998.0422.

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Several kinds of Cu polycrystals with dispersed SiO2 particles of different volume fractions were tensile tested at high temperatures from 473 K to 1023 K. All of the alloys showed clear intermediate-temperature embrittlement (ITE). Although the temperature of minimum elongation was almost the same in all the alloys, temperature dependence of fracture strain depended strongly on the SiO2 volume fraction: (1) At a fixed temperature, the fracture strain tended to first decrease with increase in SiO2 volume fraction, showed minimum in an alloy with certain volume fraction, and increased again wit

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20

Yoshida, Katsumi, Hideki Matsumoto, Masamitsu Imai, Kazuaki Hashimoto, Yoshitomo Toda, and Toyohiko Yano. "Fabrication of Two Dimensional Silicon Carbide Fiber-Reinforced Silicon Carbide Composite by Electrophoretic Deposition and Hot-Pressing." Key Engineering Materials 352 (August 2007): 77–80. http://dx.doi.org/10.4028/www.scientific.net/kem.352.77.

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In this study, Tyranno SA fiber cloth was coated with carbon black and SiC powder containing sintering aids by means of electrophoretic deposition method, and SiC/SiC composites with three different fiber volume fractions were fabricated using the Tyranno SA cloth by hot-pressing at 1700oC. The sufficient formation of the SiC matrix between each fiber could be observed. The composite fractured in non-brittle manner, and bending strength decreased with increasing fiber volume fraction. The crack propagation and fracture behavior depended on the fiber volume fraction. These differences in bendin

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21

Al-khazraji, Hayder, Nathan Benkmoun, Marta Choinska, and Abdelhafid Khelidj. "Numerical Investigation of Aggregates Size and Volume Fraction on Gas Permeability of 3D Meso-Scale Concrete." Misan Journal of Engineering Sciences 1, no. 2 (2022): 56–62. http://dx.doi.org/10.61263/mjes.v1i2.24.

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In this paper, the influence of aggregate size and volume fraction on the permeability properties of meso-scale concrete is investigated. Three volume fractions of aggregates are investigated, varying from 10, 20 and 30 %. Furthermore, three aggregate sizes are examined, 10, 14, and 16 mm. In this work, numerical results provide some indications: increasing volume fraction leads to increased fracture energy, tensile stress, and crack opening. The results show that increasing crack width and decreasing volume fraction lead to an increase in gas permeability.

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22

LIU, YAN, YI-FEI PU, JI-LIU ZHOU, and XIAO-DONG SHEN. "DESIGN OF -1/2n ORDER ANALOG FRACTANCE APPROXIMATION CIRCUIT USING CONTINUED FRACTIONS DECOMPOSITION." Journal of Circuits, Systems and Computers 21, no. 04 (2012): 1250035. http://dx.doi.org/10.1142/s0218126612500351.

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In order to solve the most important problem of the fractional calculus (FC) application, the realization of analog circuit of fractance, continued fraction theory is applied to design the -1/2n order analog fractance approximation circuit. The author presents a network function of ideal fractance and decomposes it in continued fractions (CFs) form to obtain the corresponding analog fractance approximation circuit. The new circuit consists of ordinary passive RC component through network synthesis method. Simulations are performed for the verification of the new circuit. Experimental evidence

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23

Noviarni, Intan, Irmanida Batubara, and Sastia Prama Putri. "Antiglycation and Antioxidant Activity from Methanol Extract and Fraction of Xylocarpus granatum Stem." Jurnal Kimia Sains dan Aplikasi 23, no. 1 (2019): 21–27. http://dx.doi.org/10.14710/jksa.23.1.21-27.

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The objective of this research was to determine the antioxidant and antiglycation activity of methanol crude extract of Xylocarpus granatum stem and its fraction. The methanol crude extract was fractioned by liquid-liquid extraction to obtain three fractions, which were n-hexane fraction, ethyl acetate fraction, and methanol fraction. Antioxidant activity was performed using scavenging 2,2-diphenyl-1-picrylhydrazyl (DPPH). The antiaging activity was identified based on the ability to inhibit the formation of advanced glycation end products (AGEs). The results of the study showed that methanol

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24

Indariani, Susi, Aisyah Hidayat, Latifah K. Darusman, and Irmanida Batubara. "ANTIBACTERIAL ACTIVITY OF FLAVONOID FROM KEPEL (STELECHOCARPUS BURAHOL) LEAVES AGAINST STAPHYLOCOCCUS EPIDERMIDIS." International Journal of Pharmacy and Pharmaceutical Sciences 9, no. 10 (2017): 292. http://dx.doi.org/10.22159/ijpps.2017v9i10.19071.

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Objective: The objective of this research was to separate flavonoids of kepel (Stelechocarpus burahol) leaves from methanol extract as antibacterial agent against Staphylococcus epidermidis that have a role in body odor.Methods: The methanol extracts of kepel was fractionated in methanol: water (7:3), n-hexane and chloroform consecutively. Methanol: water (7:3) extract with the highest flavonoids content, fractioned by silica gel column chromatography (isocratic elution, with n-buthanol: methanol: acetic acid (1:8:1) as eluent) to produce 7 fractions. All fractions were tested for antibacteria

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25

Naito, Kimiyoshi, and Chiemi Nagai. "Mode-I and mode-II interlaminar fracture properties of high modulus pitch-based carbon fiber reinforced polymers containing different nanostructures." Journal of Composite Materials 56, no. 3 (2021): 397–407. http://dx.doi.org/10.1177/00219983211049289.

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The mode-I and mode-II interlaminar fracture properties of high modulus pitch-based carbon fiber reinforced polymers (CFRPs) (fiber: K13C; resin: EX-1515 cyanate ester) modified with 20–30 nm β-SiC nanoparticles or multiwalled-carbon nanotubes (MWCNTs) were investigated. Different volume fractions of both the β-SiC nanoparticles (1, 2, 5, and 10 vol%) and MWCNTs (1, 3, 5, and 7 vol%) were tested. The values of the mode-I and mode-II interlaminar fracture toughness of the CFRPs containing the lowest volume fractions of these nanostructures were larger compared with the unfilled composite but de

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Kadek, Rihendra Dantes. "Vehicle Body of Ganesha Underwater Scooter: Toughness Characteristics of Polyester Matrix Composite Hybrid Reviewed from Variation of Rami Fiber Volume Fraction." Solid State Phenomena 291 (May 2019): 91–97. http://dx.doi.org/10.4028/www.scientific.net/ssp.291.91.

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This study aimed to determine the influence of fiber volume fraction towards composite toughness and the composite hybrid fracture pattern models reinforced by hemp fiber and fiberglass to find out the ratio of composite toughness from variation of hemp fiber volume fraction and fiberglass A1 (15 : 25), A2 (20 : 20), A3 (25 : 15)%. This research is an experimental method research with the dependent variable is composite toughness and the independent variable is the fiber volume fraction. Based on the test and data analysis, the results for fraction A1 (15 : 25)% have the greatest impact absorp

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Wu, Xing-Qiang, Tian-Yue Zhang, Fan Yang, et al. "Association of radiotherapy with thoracic vertebral fractures in esophageal squamous cell carcinoma: A retrospective cohort study." Medicine 102, no. 39 (2023): e35304. http://dx.doi.org/10.1097/md.0000000000035304.

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To investigate the association between radiotherapy (RT) and thoracic vertebral fractures in esophageal squamous cell carcinoma (ESCC) and explore the risk factors of thoracic vertebral fracture in ESCC who underwent RT. This retrospective cohort study including 602 consecutive ESCC patients examined the association between RT and thoracic vertebral fractures using multivariable Cox proportional hazard models and relevant risk factors of thoracic vertebral fractures based on clinical and RT parameters in patients with ESCC. Followed for a median follow-up of 24 months, 54 patients had thoracic

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Raja, Mohan Maruga, Shri Hari Mishra, Riyaj Shaukat Tamboli, and Devarajan Agilandeswari. "Antidiabetic and antiplatelet aggregation study of various methanol fractions of Nymphaea stellata Willd. leaves." Herba Polonica 63, no. 3 (2017): 25–34. http://dx.doi.org/10.1515/hepo-2017-0016.

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Summary Introduction: Nymphaea stellata Willd. (Nymphaeaceae) is traditionally used for the treatment of diabetes. Alcohol extract of N. stellata leaves has been reported for hypoglycaemic activity. Objective: The aim of this study was to further investigate the different methanol fractions of N. stellata leaves for anti-diabetic activity and anti-platelet aggregation activity. Methods: Methanol extract was fractioned in to unsaponified petroleum ether fraction of methanol extract (UPFME), chloroform fraction of methanol extract (CFME) and residual fraction of methanol extract (RFME). All frac

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29

Li, Xiangji, Limei Xiao, Qifeng Zheng, Huan Zhang, and Yanjiao Gu. "Study on Microstructure and Properties of Tailored Hot-Stamped U-shaped Parts Based on Temperature Field Control." Metals 9, no. 5 (2019): 593. http://dx.doi.org/10.3390/met9050593.

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In order to meet the needs of the automotive industry, it is necessary to produce “tailored” parts. The U-shaped die equipped with a high-speed airflow device was designed to conduct the hot stamping experiments. The microstructure, micro-hardness, tensile properties, and fracture behavior of the parts were analyzed. The experimental results showed that the quenched phase of the hardened section was mainly martensite, and the micro-hardness and tensile strength could reach 445 HV and 1454 MPa, respectively. The fracture mechanism was brittle fracture. For the toughness section, as the tool tem

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30

Kook, Joong-Suk, and Tadaharu Adachi. "Mechanical Properties of GFRP Laminates Manufactured by Process Combined with Wet Lay-Up and Vacuum Curing." Key Engineering Materials 306-308 (March 2006): 845–50. http://dx.doi.org/10.4028/www.scientific.net/kem.306-308.845.

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In this study, a manufacturing process for glass fiber reinforced plastics (GFRP) laminates was developed to improve volume fraction of fibers and mechanical properties. The manufacturing process is combination with wet lay-up and vacuum curing under atmosphere pressure for production of large and complicated structure as a leisure boat and so on. Several kinds of GFRP laminates were produced to consider optimum conditions of the process from viewpoint of volume fraction of fibers and mechanical properties. Volume fractions of fibers in GFRP laminates were measured and cross sections were obse

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31

Adhikari, Anjan, Sangita Bhattacharya, Abhijit Chanda, and Tapas Kumar Sur. "Assessment on antinociceptive actions of soluble fractions derived from edible mollusc (Bellamya bengalensis Lam.)." International Journal of Basic & Clinical Pharmacology 6, no. 12 (2017): 2916. http://dx.doi.org/10.18203/2319-2003.ijbcp20175218.

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Background: Bellamya bengalensis, an edible bivalve mollusc is traditionally used in the treatment of joint pain, bone fracture, jaundice and eye infections. Present study was designed to find out the most potent analgesic fractions derived from the body mass of Bellamya bengalensis.Methods: The test specimen was collected, identified and fractionated with solvent medium like, phosphate buffer saline (PB), ethyl acetate (EB), methanol (MB) and chloroform (CB). Protein concentration of each fraction was determined. The antinociceptive activities were measured either by thermal models like, hot

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32

Igor Minin, Igor Minin, and Oleg Minin Oleg Minin. "3D dif fractive lenses to overcome the 3D Abbe subwavelength dif fraction limit." Chinese Optics Letters 12, no. 6 (2014): 060014–60016. http://dx.doi.org/10.3788/col201412.060014.

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33

Surura, Hedya Nadhrati, Hairus Abdullah, Sahna Ferdinand Ginting, Erny Tandanu, and Refi Ikhtiari. "Green synthesis of silver nanoparticles from papaya seed extracts with alkaloid content for antibacterial application." Jurnal Teknologi Laboratorium 10, no. 2 (2021): 75–86. http://dx.doi.org/10.29238/teknolabjournal.v10i2.315.

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This research aims to develop a silver nanoparticle (AgNPs) using several plant extracts for antibacterial application. The papaya seed extract has been fractioned by n-hexane, ethyl acetate, water, and ethanol. The n-hexane fraction was the only fraction that succeeded in synthesizing AgNPs. The characterization methods showed AgNPs marked at 430 nm with UV-Vis and 1640 cm-1 with FTIR. SEM observed the aggregation of spherical AgNPs at the 200 nm scale. The particle size of 91.3 nm was measured with PSA that confirmed the nanoscale of the synthesized material. All fractions contained alkaloid

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Harsha, H. M., and K. G. Satish. "Experimental analysis of fracture behavior in ESET jute-natural fiber hybrid composites under eccentric tension." Strength, Fracture and Complexity: An International Journal 18, no. 1 (2024): 3–17. https://doi.org/10.1177/15672069241302928.

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This study investigates the mechanical behavior of hybrid composites reinforced with natural jute fiber and glass fiber in varying volume fractions, using a constant volume of epoxy resin. Specimens were fabricated using the hand layup method and subjected to tensile testing as per ASTM standards. Different volume fractions and fiber orientations were tested under eccentric tensile loading, with varying single edge notch to width (a/W) ratios. The results revealed that as the jute fiber volume fraction increased, both fracture load and fracture toughness decreased. Additionally, fracture load

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Charuk, J. H. M., S. Howlett, and M. Michalak. "Subfractionation of cardiac sarcolemma with wheat-germ agglutinin." Biochemical Journal 264, no. 3 (1989): 885–92. http://dx.doi.org/10.1042/bj2640885.

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The properties of highly purified bovine cardiac sarcolemma subfractionated with the lectin, wheat-germ agglutinin (WGA) were studied. Two different membrane subfractions were isolated, one which was agglutinated in the presence of 1.0 mg of WGA/mg of protein (WGA+ vesicles) and a second fraction which failed to agglutinate (WGA- vesicles). These two membrane fractions had quantitatively different rates of Na+/K+-dependent, ouabain-sensitive ATPase and Na+/Ca2+ exchange activities, yet a similar protein composition, which suggests that they were both derived from the plasma membrane. WGA- vesi

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Zhang, Kelong, Huizhong Li, Xiaopeng Liang, et al. "Dependence of Tensile Properties and Fracture Behaviors on the Fractions of Continuous and Discontinuous Precipitates in Peak-Aged AZ80A Magnesium Alloy." Materials 16, no. 13 (2023): 4546. http://dx.doi.org/10.3390/ma16134546.

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After T5 (forging + aging) and different T6 (forging + solution + aging) heat treatments, the AZ80A Mg alloys exhibited microstructures with different fractions of continuous precipitate (CP) regions and discontinuous precipitate (DP) regions. The effects of the fractions of DP regions and CP regions on the tensile properties and fracture behaviors were investigated using microstructural characterizations and analysis. The results showed that increasing the fraction of DP regions enhanced the yield strength and tensile strength at room temperature. However, at the same high temperature, increa

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Han, Moon Sik, and Jung Il Song. "Characterization of Fracture Toughness of Hybrid MMCs the Short Fiber Reinforced Metal Matrix Composites." International Journal of Modern Physics B 17, no. 08n09 (2003): 1827–32. http://dx.doi.org/10.1142/s0217979203019733.

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Evaluation of fracture toughness of short fiber reinforced metal matrix composites (MMCs) becomes important for the application as structural materials. Therefore, in this study static and dynamic fracture toughness of MMCs manufactured by squeeze casting process were investigated. A number of MMCs have been tested with various matrix alloys, volume fractions, and specifically types of reinforcements. It was found that static and dynamic fracture toughness of metal matrix composites was remarkably decreased by the addition of ceramic reinforcements. Dynamic fracture toughness slightly decrease

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Schmauder, Siegfried, Ulrich Weber, Andreas Reuschel, and Markus Willert. "Simulation of the Mechanical Behaviour of Metal Matrix Composites." Materials Science Forum 678 (February 2011): 49–60. http://dx.doi.org/10.4028/www.scientific.net/msf.678.49.

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A model based on the geometry of the phases is introduced in order to investigate the mechanical properties of interpenetrating microstructures. In order to characterize the elastic and elastic-plastic properties of the composite a self consistent unit cell model is applied on a wide range of volume fractions for an Al/TiO2 composite. Besides the volume fraction a microstructural based parameter is used, the matricity, to describe the mutual circumvention of both phases. Computations are carried out for different temperatures and void volume fractions. In addition a conservative fracture crite

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Tomovic-Petrovic, Stanka, Srdjan Markovic, and Slavica Zec. "The effect of boron on the amount and type of carbides in chromium white irons." Journal of the Serbian Chemical Society 67, no. 10 (2002): 697–707. http://dx.doi.org/10.2298/jsc0210697t.

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The effect of boron, in the amounts of 0.26, 0.39, and 0.59 wt.%, on the volume fraction and structure of carbides in Cr white irons was examined. It was demonstrated that the addition of boron can change the microstructural characteristics of white iron containing about 13 wt.% Cr. With increasing boron content, the volume fractions of M3C carbide increase, but the volume fracton of M7C3 carbide remains unchanged. The addition of boron tends to produce hard borides and/or borocarbides. It also prevents the formation of pearlite, which results in alloys possessing good wear resistance.

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Sari, Nasmi Herlina, Suteja Suteja, I. Putu Lokantara, and Topan Gusti Wibowo. "Influence of Pumice Particles on the Mechanical and Morphology Properties of Polyester-Cornhusk Fiber Composites." Journal of Fibers and Polymer Composites 1, no. 2 (2022): 97–105. http://dx.doi.org/10.55043/jfpc.v1i2.54.

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The purpose of this study was to look into the performance of a cornhusk fiber (CHF) reinforced polyester composite with pumice powder (PP) as a filler. The influence of varied PP volume fractions on composite tensile, bending, impact, and fracture morphology was studied. Using the hot press process, polyester-CHF composites with varied volume fractions of PP filler, namely 5%, 10%, 15%, 20%, 25%, and 30% wt, were created. The results showed that increasing the PP volume fraction from 5% to 15% enhanced the tensile strength of the polyester-CHF composite. The modulus of elasticity and bending

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Zhang, Kun, Tao Ni, Jin Zhang, et al. "Experimental and Hybrid FEM/Peridynamic Study on the Fracture of Ultra-High-Performance Concretes Reinforced by Different Volume Fractions of Polyvinyl Alcohol Fibers." Polymers 15, no. 3 (2023): 501. http://dx.doi.org/10.3390/polym15030501.

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In this study, a series of three-point bending tests were carried out with notched beam structures made of polyvinyl alcohol (PVA) fiber-reinforced ultra-high-performance concrete (UHPC) to study the effect of volume fractions of PVA fibers on the fracture characteristics of the UHPC-PVAs. Furthermore, in order to meet the increasing demand for time- and cost-saving design methods related to research and design experimentation for the UHPC structures, a relevant hybrid finite element and extended bond-based peridynamic numerical modeling approach is proposed to numerically analyze the fracture

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Sun, X., Z. Y. Cao, H. F. Liu, W. Jiang, and L. P. Liu. "Predicting the Influence of Microporosity on the Mechanical Properties and Fracture Behavior of High-Pressure Die-Cast AM50 Magnesium Alloy." Applied Mechanics and Materials 670-671 (October 2014): 90–94. http://dx.doi.org/10.4028/www.scientific.net/amm.670-671.90.

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In this paper, experimental and finite element modeling methods were adopted to investigate the effects of microporosity on the tensile properties and fracture behavior of high-pressure die-casting (HPDC) AM50 alloy. By specimen-to-specimen fractographic analysis, the variability in tensile properties could be quantitatively correlated with the areal fraction of the porosity presented in the corresponding fracture surfaces by using a simple power law equation. Numerical models of synthetic microstructures with different pore sizes, areal fractions of pores and pore distributions were establish

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Dosso, Kassim, Abiba Ouattara Gboko, Dago Serge David Attemene, Banga Benoit N'guessan, and Angoue Paul Yapo. "The antispasmodic activity of ethanol extract of the stem bark of Piliostigma reticulatum Horscht D.C (Ceasalpiniaceae), and its dichloromethane fraction isolated." GSC Biological and Pharmaceutical Sciences 11, no. 1 (2020): 036–45. https://doi.org/10.5281/zenodo.4276896.

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<em>Piliostigma reticulatum </em>(Caesalpiniaceae) has been used in traditional medicine for the treatment of gastrointestinal disorders like diarrhea. The aim of the present study was to examine the relaxant activity of an extract of <em>P. reticulatum </em>stem bark and five of its fractions on isolated rabbit duodenum. Segments of duodenum of rabbits were suspended in an organ bath. The ethanol extract had been fractioned to obtain some fractions heptane, dichloromethane, ethyl acetate, butanol and aqueous extract. The ethanol extract and the dichloromethane fraction were tes

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Liu, Yalong, Ping Wang, Yuanjun Ding, et al. "Microbial activity promoted with organic carbon accumulation in macroaggregates of paddy soils under long-term rice cultivation." Biogeosciences 13, no. 24 (2016): 6565–86. http://dx.doi.org/10.5194/bg-13-6565-2016.

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Abstract. While soil organic carbon (SOC) accumulation and stabilization has been increasingly the focus of ecosystem properties, how it could be linked to soil biological activity enhancement has been poorly assessed. In this study, topsoil samples were collected from a series of rice soils shifted from salt marshes for 0, 50, 100, 300 and 700 years from a coastal area of eastern China. Soil aggregates were fractioned into different sizes of coarse sand (200–2000 µm), fine sand (20–200 µm), silt (2–20 µm) and clay (< 2 µm), using separation with a low-energy dispersion protocol. Soil prope

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Elnour, Ahmed Adam M., Mohamed Elwathig Saeed Mirghani, Nassereldeen A. Kabbashi, Md Zahangir Alam, and Khalid Hamid Musa. "Active Fractions of Methanol Crude Obtained from Acacia seyal gum: Antioxidant Capacity, using FTIR Analysis." Borneo Journal of Pharmacy 2, no. 2 (2019): 94–107. http://dx.doi.org/10.33084/bjop.v2i2.915.

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The present study is on Acacia seyal gum (ASG), which is an exudate from Talha tree. It provides a rich source of polyphenolics compounds that are used traditionally in folk medicine. The study aims to determine the antioxidant capacity (AC) and functional groups of ASG and Prebio-T-commercial (PTC) samples. The methanol crude extracts of both ASG and PTC have fractioned into chloroform (CHF), hexane (HF), acetone (AF) and methanol (MF) using solvent-solvent portion. Both ferric reducing antioxidant power (FRAP), and cupric reducing antioxidant capacity (CUPRAC) assays for each fraction examin

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Han, Seonghui, Sang-Eun Han, Tae-Young Lee, Deok-Gon Han, Young-Bae Park, and Sehoon Yoo. "Brittle Fracture Behavior of Sn-Ag-Cu Solder Joints with Ni-Less Surface Finish via Laser-Assisted Bonding." Materials 17, no. 14 (2024): 3619. http://dx.doi.org/10.3390/ma17143619.

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In this study, we investigated the brittle fracture behavior of Sn-3.0Ag-0.5Cu (SAC305) solder joints with a Direct Electroless Gold (DEG) surface finish, formed using laser-assisted bonding (LAB) and mass reflow (MR) techniques. Commercial SAC305 solder balls were used to ensure consistency. LAB increases void fractions and coarsens the primary β-Sn phase with higher laser power, resulting in a larger eutectic network area fraction. In contrast, MR produces solder joints with minimal voids and a thicker intermetallic compound (IMC) layer. LAB-formed joints exhibit higher high-speed shear stre

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Kadhim, Naser, and Dhifaf Aziz. "dx.doi.org/10.18081/2333-5106/016-7/253-264." American Journal of BioMedicine 7, no. 3 (2019): 223–34. http://dx.doi.org/10.18081/2333-5106/016-7/253-264.

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DNA topoisomerases are ubiquitous, enzymes needed to control topological problems encountered during DNA replication, transcription, recombination and maintenance of genomic stability. They proved to be valuable targets for cancer chemotherapy. The seeds alkaloids extract of Rue plant (Peganum harmala L. Zygophyllaceae) were fractioned by high performance liquid chromatography as a suitable technique, HPLC waters company, gradient, Nova-Pak, C18*, 4µm, 3.9x150mm, mobile phase ACN-water pH10.7. Thirty-four separate solution depending on the retention time of eluents. The aim of this study is to

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Tiji, Salima, Mohamed Bouhrim, Mohamed Addi та ін. "Linking the Phytochemicals and the α-Glucosidase and α-Amylase Enzyme Inhibitory Effects of Nigella sativa Seed Extracts". Foods 10, № 8 (2021): 1818. http://dx.doi.org/10.3390/foods10081818.

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Nigella sativa L. (Ranunculaceae), commonly referred to as black seeds or black cumin, is used in popular medicine (herbal) all over the world for the treatment and prevention of several diseases, including diabetes. This study aims to investigate the inhibitory effect of N. sativa extracts and fractions against the activities of intestinal α-glucosidase and pancreatic α-amylase in vitro, and to explain the inhibitory effect of these fractions against these enzymes by identifying their active compounds responsible for this effect and determine their modes of inhibition. To do so, N. sativa hex

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Sahib, Lasna, K. Ally, K. S. Ajith, Biju Chacko, G. Radhika, and K. S. Anil. "Evaluation of chemical composition, fibre fractions and carbohydrate and protein partitioning of paddy straw, Guinea grass, and hybrid Napier (CO5)." Journal of Veterinary and Animal Sciences 56, no. 2 (2025): 268–73. https://doi.org/10.51966/jvas.2025.56.2.268-273.

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The nutritional evaluation of fodder resources is essential for optimising ruminant feeding strategies. This study assessed the chemical composition, fibre fractions and CNCPS (Cornell Net Carbohydrate and Protein System) carbohydrate and protein partitioning of paddy straw, Guinea grass and Hybrid Napier (CO5). Four samples of each fodder were analysed for dry matter, crude protein, ether extract, ash, neutral detergent fibre, acid detergent fibre, lignin, starch, buffer soluble protein, non-protein nitrogen, neutral detergent insoluble protein, and acid detergent insoluble protein. Carbohydr

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Li, Duo Sheng, Xian Liang Zhou, Ai Hua Zou, Xiao Zhen Hua, and Y. W. Yu. "Fabrication and Fracture Analyses of SiC Particulate-Reinforced Al Matrix Composites." Advanced Materials Research 764 (September 2013): 43–46. http://dx.doi.org/10.4028/www.scientific.net/amr.764.43.

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The fabrication process and fracture characterization of 35 and 65 vol% SiCp particulate-reinforced Al matrix (SiCp/Al) composites have been investigated. SiCp composites having different volume fractions of the n-SiCp were synthesized via by pressureless-infiltration at near-net-shape route and were uniaxially tested at room temperature. The SiC particles were mixed with silicasol as an inorganic binder in distilled water. The mixtures were consolidated in a mold by pressing and dried in two step process, followed by calcination at 1000 °C. The SiCp/Al composites were fabricated by the infilt

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