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Journal articles on the topic 'MQF technique'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Callisaya, Emanuele Schneider, Manoel Cléber de Sampaio Alves, Giovanni Faus Salussolia, and Larissa Ribas de Lima. "Power Rating and Tools Wear in Milling of Hardened SAE 4340 Steel with Minimum Quantity of Fluid (MQF)." Key Engineering Materials 735 (May 2017): 24–28. http://dx.doi.org/10.4028/www.scientific.net/kem.735.24.

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Currently, many industries are seeking to lower the use of lubricating fluids in machining processes without losing the quality of the workpieces, as an affordable alternative arises the possibility to applicate the minimal quantity of fluid technique (MQF). This study is focused on interpretation and evaluation of hardened SAE 4340 steel milling process using the MQF at different flow rates compared to conventional lubrication. With the implementation of a data acquisition system to measure the milling dynamic, it was possible to know all the present variations on the power rating during the

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2

Stofanko, Martin, Joan C. Han, Sarah H. Elsea, Heloísa B. Pena, Higgor Gonçalves-Dornelas, and Sérgio Danilo Junho Pena. "Rapid and Inexpensive Screening of Genomic Copy Number Variations Using a Novel Quantitative Fluorescent PCR Method." Disease Markers 35 (2013): 589–94. http://dx.doi.org/10.1155/2013/704917.

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Detection of human microdeletion and microduplication syndromes poses significant burden on public healthcare systems in developing countries. With genome-wide diagnostic assays frequently inaccessible, targeted low-cost PCR-based approaches are preferred. However, their reproducibility depends on equally efficient amplification using a number of target and control primers. To address this, the recently described technique called Microdeletion/Microduplication Quantitative Fluorescent PCR (MQF-PCR) was shown to reliably detect four human syndromes by quantifying DNA amplification in an interna

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3

Turan, Umit. "Modified Limberg flap versus modified Karydakis flap in pilonidal sinus disease: single surgeon experience." International Surgery Journal 6, no. 9 (2019): 3069. http://dx.doi.org/10.18203/2349-2902.isj20194035.

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Background: The aim of this study was to analyze and compare the results of the modified Limberg flap (MLF) and modified Karydakis flap (MKF) techniques which were performed for the treatment of pilonidal sinus disease (PSD).Methods: The patients who were operated for PSD by the same surgeon between November 2010 and July 2013 in Konya Seydisehir Hospital were retrospectively analyzed. A total of 106 patients were evaluated in this study regarding age, gender, operation time, length of hospital stay, and postoperative complications.Results: There were 14 female and 92 male patients (MLF; 5/52

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4

Santos, Felipe Aurélio dos, Marcelo Alves de Camargo Pinto, Ramon Oliveira B. dos Santos, Thiago Averaldo Bimestre, and Renann Pereira Gama. "COMPARATIVE ANALYSIS OF THE APPLICATION OF LUBRICANT COOLANT BY THE MQF TECHNIQUE IN THE FACE MILLING MACHINING PROCESS OF HARDENED D2 STEEL ALLOY / ANÁLISE COMPARATIVA DA APLICAÇÃO DE FLUÍDO LUBRI-REFRIGERANTE PELO MÉTODO MQL NO PROCESSO DE USINAGEM POR FRESAMENTO FRONTAL DO AÇO D2 ENDURECIDO." Brazilian Journal of Development 7, no. 1 (2021): 10349–70. http://dx.doi.org/10.34117/bjdv7n1-703.

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5

Mudassar, Asloob Ahmad, and Saira Butt. "Extraction of Blood Vessels in Retinal Images Using Four Different Techniques." Journal of Medical Engineering 2013 (December 17, 2013): 1–21. http://dx.doi.org/10.1155/2013/408120.

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A variety of blood vessel extraction (BVE) techniques exist in the literature, but they do not always lead to acceptable solutions especially in the presence of anomalies where the reported work is limited. Four techniques are presented for BVE: (1) BVE using Image Line Cross-Sections (ILCS), (2) BVE using Edge Enhancement and Edge Detection (EEED), (3) BVE using Modified Matched Filtering (MMF), and (4) BVE using Continuation Algorithm (CA). These four techniques have been designed especially for abnormal retinal images containing low vessel contrasts, drusen, exudates, and other artifacts. T

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Bhowmik, Ayan, Somjeet Biswas, Satyaveer Singh Dhinwal, et al. "Microstructure and Texture Evolution in Interstitial-Free (IF) Steel Processed by Multi-Axial Forging." Materials Science Forum 702-703 (December 2011): 774–77. http://dx.doi.org/10.4028/www.scientific.net/msf.702-703.774.

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In this study, severe plastic deformation (SPD) of Ti-bearing interstitial-free steel was carried out by multi-axial forging (MAF) technique. The grain refinement achieved was comparable to that by other SPD techniques. A considerable heterogeneity was observed in the microstructure and texture. Texture of multi-axially forged steels has been evaluated and reported for the first time. The material exhibited a six-fold increase in the yield strength after four cycles of MAF.

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Larson, D. J., A. K. Petford-Long, A. Cerezo, T. C. Anthony, and M. K. Miller. "Atom Probe Field Ion Microscopy Of Multilayer Thin Films." Microscopy and Microanalysis 5, S2 (1999): 150–51. http://dx.doi.org/10.1017/s1431927600014070.

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Multilayer film (MLF) structures which exhibit giant-magnetoresistance (GMR) properties have applications in the areas of magnetic recording and computer memory. The magnetic properties of MLF structures are dependent upon structural and compositional variations at the atomic level. Thus, structural characterization with high spatial resolution, especially at layer interfaces, is important in order to optimize device performance with respect to processing and operating conditions. Atom probe field ion microscopy (APFIM) is one technique that has the capability to characterize the local structu

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8

Yu, Li Na, Kazuyoshi Saida, Masahito Mochizuki, et al. "Hardness Prediction for Temper Bead Welding of Non-Consistent Layer Technique." Materials Science Forum 783-786 (May 2014): 2851–56. http://dx.doi.org/10.4028/www.scientific.net/msf.783-786.2851.

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Temper bead welding (TBW) is one effective repair welding method for the large-scale nuclear power plants. Consistent Layer (CSL) technique is the theoretically most authoritative method among the five temper bead welding techniques. However in the actual operation, CSL technique is difficult to perform, and non-CSL techniques (Controlled Deposition technique, Half Bead technique, et al) are mainly used in the actual repair process. The thermal cycles in heat affect zone (HAZ) of non-CSL technique are more complicated than that of CSL techniques. Through simplifying the complicated thermal cyc

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9

Xu, Lin, Duo Zhang, Fuyin Ma, et al. "Nano-MOF+ Technique for Efficient Uranyl Remediation." ACS Applied Materials & Interfaces 11, no. 24 (2019): 21619–26. http://dx.doi.org/10.1021/acsami.9b06068.

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10

Xiong, Yang Yang, Hui Qiong Wu, and Feng Luo. "The MOF+ Technique: A Potential Multifunctional Platform." Chemistry - A European Journal 24, no. 52 (2018): 13701–5. http://dx.doi.org/10.1002/chem.201801348.

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11

Baron, Yuri M., S. L. Ko, and Jung Il Park. "Technique of Comparison and Optimization of Conditions for Magnetic Abrasive Finishing." Key Engineering Materials 291-292 (August 2005): 297–302. http://dx.doi.org/10.4028/www.scientific.net/kem.291-292.297.

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In this paper, the new technique involving comparison and optimization of conditions for Magnetic Abrasive Finishing (MAF) is suggested, taking into account the basic laws stated for process MAF. The formulas for the calculation of the criteria for optimization are created when the process MAF is used for polishing, removal of burrs, and other purposes. The application of the technique is shown in an experiment on the optimization conditions for the removal of burrs after drilling using the MAF method. The technique can be used after standards for this process are developed.

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Selvaraj, N., J. Lee, and K. H. Chon. "Time-varying Methods for Characterizing Nonstationary Dynamics of Physiological Systems." Methods of Information in Medicine 49, no. 05 (2010): 435–42. http://dx.doi.org/10.3414/me10-02-0029.

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Summary Background: Accurate and early diagnosis of various diseases and pathological conditions require analysis techniques that can capture time-varying (TV) dynamics. In the pursuit of promising TV signal processing methods applicable to real-time clinical monitoring applications, nonstationary spectral techniques are of great significance. Objectives: We present two potential practical applications of such techniques in quantifying TV physiological dynamics concealed in photoplethysmography (PPG) signals: early detection of blood-volume loss using a non-parametric approach known as variabl

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13

Cornelius, Carl-Peter, and Michael Ehrenfeld. "The Use of MMF Screws: Surgical Technique, Indications, Contraindications, and Common Problems in Review of the Literature." Craniomaxillofacial Trauma & Reconstruction 3, no. 2 (2010): 55–80. http://dx.doi.org/10.1055/s-0030-1254376.

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Mandibulo-maxillary fixation (MMF) screws are inserted into the bony base of both jaws in the process of fracture realignment and immobilisation. The screw heads act as anchor points to fasten wire loops or rubber bands connecting the mandible to the maxilla. Traditional interdental chain-linked wiring or arch bar techniques provide the anchorage by attached cleats, hooks, or eyelets. In comparison to these tooth-borne appliances MMF screws facilitate and shorten the way to achieve intermaxillary fixation considerably. In addition, MMF screws help to reduce the hazards of glove perforation and

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14

Cajal, Carlos, Jorge Santolaria, and Jesus Velazquez. "Parametric Modeling and Compensation of Layer Manufacturing Machines." Materials Science Forum 797 (June 2014): 145–50. http://dx.doi.org/10.4028/www.scientific.net/msf.797.145.

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Layer manufacturing machines are affected, the same way as traditional manufacturing processes, by systematic errors [.This lack of precision and poor dimensional accuracy can be reduced by software compensation techniques. This paper proposes a parametric error compensation technique based on pattern artifacts. This technique is verified on an Objet 350V 3D printer. To begin, these parametric techniques require the development of the machines kinematic model [. The data acquisition is performed with a CMM and a self-centering technique to measure conical sockets manufactured in the faces of p

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15

Singh, Virendra, and Amrish Bhagol. "A New and Easy Technique of Maxillomandibular Fixation in Treatment of Mandibular Fractures." Craniomaxillofacial Trauma & Reconstruction 4, no. 3 (2011): 175–77. http://dx.doi.org/10.1055/s-0031-1286121.

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The present work evaluated the success of maxillomandibular fixation (MMF) by a new and simplified technique in management of minimally displaced mandibular fractures. A total of 20 patients who sustained various types of mandibular fractures were treated at the Government Dental College, Rohtak, India by a new MMF technique. The patients were evaluated by preoperative and postoperative radiography, and clinical testing was performed to assess the degree of tooth mobility adjacent to the site of MMF. The time required for MMF was also noted. Patient recovery was uneventful in all 20 cases, and

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16

Aslam-Pervez, Nawaf, John F. Caccamese, and Gary Warburton. "A randomized prospective comparison of maxillomandibular fixation (MMF) techniques: “SMARTLock” hybrid MMF versus MMF screws." Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology 130, no. 6 (2020): 640–44. http://dx.doi.org/10.1016/j.oooo.2020.07.015.

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17

Kafarska, Karolina, Michał Gacki, and Wojciech M. Wolf. "Synthesis, Spectroscopic, and Thermal Investigations of Metal Complexes with Mefenamic Acid." Journal of Chemistry 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/6172626.

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The novel metal complexes with empirical formulae M(mef)2·nH2O (where M = Mn(II), Co(II), Ni(II), Cu(II), Zn(II), and Cd(II); mef is the mefenamic ligand) were synthesized and characterized by elemental analysis, molar conductance, FTIR-spectroscopy, and thermal decomposition techniques. All IR spectra revealed absorption bands related to the asymmetric (νas) and symmetric (νs) vibrations of carboxylate group. The Nakamoto criteria clearly indicate that this group is bonded in a bidentate chelate mode. The thermal behavior of complexes was studied by TGA methods under non-isothermal condition

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18

He, Zhouyan, Yang Song, Caiming Zhong, and Li Li. "Curvature and Entropy Statistics-Based Blind Multi-Exposure Fusion Image Quality Assessment." Symmetry 13, no. 8 (2021): 1446. http://dx.doi.org/10.3390/sym13081446.

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The multi-exposure fusion (MEF) technique provides humans a new opportunity for natural scene representation, and the related quality assessment issues are urgent to be considered for validating the effectiveness of these techniques. In this paper, a curvature and entropy statistics-based blind MEF image quality assessment (CE-BMIQA) method is proposed to perceive the quality degradation objectively. The transformation process from multiple images with different exposure levels to the final MEF image leads to the loss of structure and detail information, so that the related curvature statistic

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19

Moses, Lusia Barek, Mohd Fadzelly Abu Bakar, Hasmadi Mamat, and Zaleha Abdul Aziz. "Unfermented Freeze-Dried Leaf Extract of Tongkat Ali (Eurycoma longifolia Jack.) Induced Cytotoxicity and Apoptosis in MDA-MB-231 and MCF-7 Breast Cancer Cell Lines." Evidence-Based Complementary and Alternative Medicine 2021 (January 30, 2021): 1–16. http://dx.doi.org/10.1155/2021/8811236.

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The present study was conducted to determine the cytotoxicity effect of Eurycoma longifolia (Jack.) leaf extracts and also its possible anticancer mechanism of action against breast cancer cell lines: non-hormone-dependent MDA-MB-231 and hormone-dependent MCF-7. The leaves of E. longifolia were processed into unfermented and fermented batches before drying using freeze and microwave-oven drying techniques. Obtained extracts were tested for cytotoxicity effect using MTT assay and phenolic determination using HPLC-DAD technique. The most toxic sample was analyzed for its apoptotic cell quantific

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20

Knotts, Christopher, Meredith Workman, Kamal Sawan, and Christian El Amm. "A Novel Technique for Attaining Maxillomandibular Fixation in the Edentulous Mandible Fracture." Craniomaxillofacial Trauma & Reconstruction 5, no. 1 (2012): 7–10. http://dx.doi.org/10.1055/s-0031-1300962.

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Edentulous mandible fractures present a unique and challenging surgical problem, particularly because of lack of occlusive dental surfaces to capitalize upon maxillomandibular fixation (MMF). We present a novel technique to achieve MMF using rigid plates spanning the oral cavity to fixate the maxilla to the mandible. The process is rapid and allows stability using the established principles of rigidity, external fixation, and osteosynthesis. This technique allows for a faster MMF than with a Gunning splint and allows for easier oral hygiene. An illustrative case and pre- and postoperative imag

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21

Mergulhão, Marcello Vertamatti, Carlos Eduardo Podestá, and Maurício David Martins das Neves. "Valuation of Mechanical Properties and Microstructural Characterization of ASTM F75 Co-Cr Alloy Obtained by Selective Laser Melting (SLM) and Casting Techniques." Materials Science Forum 899 (July 2017): 323–28. http://dx.doi.org/10.4028/www.scientific.net/msf.899.323.

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Advances in processes using the powder metallurgy techniques are making this technology competitive compared to the other traditional manufacturing processes, especially in medicine area. The additive rapid prototyping technique – selective laser melting (SLM) was applied in a biomaterial of CoCrMoFe alloy (ASTM F75), to study the mechanical properties and microstructural characterization in comparison between the conventional technique – casting. The gas atomized powder was investigated by their physical (as apparent density, bulk density and flow rate) and the chemical properties. The powder

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22

Zhou, Jie, and Tian Rui Zhou. "Material Structure Simulation Techniques and Applications." Materials Science Forum 561-565 (October 2007): 1793–96. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.1793.

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The deformation ability of metals and the mechanic characteristics of metal parts are closely related to the material’s microstructure and grain size, so it’s important to study the simulation techniques of microstructure evolution. Common microstructure simulation techniques include digital simulation and graphic simulation. This paper firstly introduced the simulation techniques of microstructure, and then focused on the graphic simulation technique that can directly show grain boundary network’s evolution process. It then built a Monte Carlo model of the grain growth during super plastic de

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Preciado, Julian Adolfo, Eduardo Reátegui, Samira M. Azarin, Emil Lou, and Alptekin Aksan. "Immobilization platform to induce quiescence in dormancy-capable cancer cells." TECHNOLOGY 05, no. 03 (2017): 129–38. http://dx.doi.org/10.1142/s2339547817500078.

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Cancer dormancy emerges when tumor cells cease to proliferate but remain alive in a quiescent state. Recent evidence suggests that cancer cells can stay dormant in a patient’s body for years before returning to a proliferative state, leading to cancer relapse. The lack of a system to efficiently identify and study dormant cancer cells is currently limiting further diagnostic and treatment developments to prevent cancer relapse. Herein, we present a novel encapsulation platform to identify and study dormancy-capable cancer cells in a quiescent state by inhibiting proliferation through physical

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24

Habib, M. Ahasan, Li Qun Ruan, Ryuji Kimura, P. Manikandan, and Kazuyuki Hokamoto. "Cladding of Titanium and Magnesium Alloy by Explosive Welding Using Underwater Shockwave Technique and Effect on Interface." Materials Science Forum 767 (July 2013): 160–65. http://dx.doi.org/10.4028/www.scientific.net/msf.767.160.

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The wide use of clad joints in practical application has been inhibited due to the difficulty in welding certain combinations such as tungsten/-copper, molybdenum/-copper and magnesium with aluminum, titanium and stainless steel. These material combinations are generally classified as difficult to weld by conventional material joining techniques due to the vast difference in material properties and the degradation of mechanical properties of the joints. Explosive welding is here a viable alternative technique. Explosive welding is a solid-phase welding process that uses the energy of a detonat

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Portillo, Joaquim, Edgar F. Rauch, Stavros Nicolopoulos, Mauro Gemmi, and Daniel Bultreys. "Precession Electron Diffraction Assisted Orientation Mapping in the Transmission Electron Microscope." Materials Science Forum 644 (March 2010): 1–7. http://dx.doi.org/10.4028/www.scientific.net/msf.644.1.

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Precession electron diffraction (PED) is a new promising technique for electron diffraction pattern collection under quasi-kinematical conditions (as in X-ray Diffraction), which enables “ab-initio” solving of crystalline structures of nanocrystals. The PED technique may be used in TEM instruments of voltages 100 to 400 kV and is an effective upgrade of the TEM instrument to a true electron diffractometer. The PED technique, when combined with fast electron diffraction acquisition and pattern matching software techniques, may also be used for the high magnification ultra-fast mapping of variab

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26

Achakzai, Jahangir Khan, Muhammad Anwar Panezai, Muhammad Ayub Kakar, et al. "In Vitro Anticancer MCF-7, Anti-Inflammatory, and Brine Shrimp Lethality Assay (BSLA) and GC-MS Analysis of Whole Plant Butanol Fraction of Rheum ribes (WBFRR)." BioMed Research International 2019 (June 23, 2019): 1–8. http://dx.doi.org/10.1155/2019/3264846.

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In this study, GC-MS analysis has shown that whole plant butanol fraction of rheum ribes (WBFRR) comprises of 21 compounds which exhibited anticancer (MCF-7) activity having IC50 value of 36.01± 0.26. MTT assay (MCF-7), Oxidative Burst assay using chemiluminescence technique, and B-Hatching techniques were the methods used for anticancer MCF-7, anti-inflammatory, and Brine Shrimp Lethality Assay (BSLA). GC-MS was used for structural elucidation. Whole plant methanol extract of rheum ribes (WMERR), whole plant n-hexane fraction of rheum ribes (WHFRR), and whole plant aqueous fraction of rheum r

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Correa, Sandro Rosa, Marcos Flavio de Campos, C. J. Marcelo, et al. "Evaluation of Residual Stresses in Welded ASTM A36 Structural Steel by Metal Active Gas (MAG) Welding Process." Materials Science Forum 869 (August 2016): 567–71. http://dx.doi.org/10.4028/www.scientific.net/msf.869.567.

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The use of structural steel in the industry is increasing every day, and the study of stress state after welding has been shown to be of great importance. Nondestructive techniques become quite appropriate to be performed before and during the service component of welded, and thus ensure its integrity. The magnetic technique to be nondestructive, and easy to apply in the field, has potential to be an inspection tool for measuring residual stresses and other microstructural parameters. In this work it was possible to analyze the state of residual stresses through nondestructive techniques, Magn

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Abo El-Yazeed, W. S., Y. G. Abou El-Reash, L. A. Elatwy, and Awad I. Ahmed. "Facile fabrication of bimetallic Fe–Mg MOF for the synthesis of xanthenes and removal of heavy metal ions." RSC Advances 10, no. 16 (2020): 9693–703. http://dx.doi.org/10.1039/c9ra10300g.

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Chou, Y.-S., J. J. Mecholsky, and M. Silsbee. "Fracture toughness of macro-defect-free cement using small crack techniques." Journal of Materials Research 5, no. 8 (1990): 1774–80. http://dx.doi.org/10.1557/jmr.1990.1774.

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The fracture toughness of a macro-defect-free (MDF) cement was calculated from two measurement techniques: (1) indentation-strength method and (2) fracture surface analysis (FSA). It was found that the indentation-strength method, which showed good agreement with FSA, was applicable for estimating the fracture toughness of MDF cement. The ultimate toughness was found to be 1.25 MPa m1/2 for this MDF cement, which contained 3 wt. % polymer. An R-curve (crack-growth-resistance) bchavior was also observed. Scanning electron micrographs showed extensive microcracking on the fracture surface. Micro

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Rahim, Erween Abdul, R. Ibrahim, Z. Mohid, M. F. Ahmad, and M. Shahrudin. "Study on Temperature, Force and Specific Energy of AISI 1020 under MQL Grinding Process." Applied Mechanics and Materials 465-466 (December 2013): 1119–23. http://dx.doi.org/10.4028/www.scientific.net/amm.465-466.1119.

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Grinding is one of the most difficult processes in machining operations. Normally, the flood coolant method was used as a cooling agent in the grinding process. The most common defects using flood coolant are higher grinding friction, higher heat generation, and thermal damage. Therefore, the minimum quality lubricant (MQL) was introduced to minimize the defects. The main objective of this project is to compare the performance of MQL and flood coolant techniques in terms of grinding temperature, grinding force and specific energy. Three levels of cutting speeds, three levels of feed rate and d

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Sato, Takashi, Yong Bo Wu, Wei Min Lin, and Kunio Shimada. "Study of Three-Dimensional Polishing Using Magnetic Compound Fluid (MCF)." Advanced Materials Research 76-78 (June 2009): 288–93. http://dx.doi.org/10.4028/www.scientific.net/amr.76-78.288.

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Magnetic compound fluid (MCF), a functional fluid responding to magnetic field, is expected for an application to many engineering fields. In this paper, the effect of magnetic fields on the polishing force and the restoring ability of the MCF are studied followed by the proposal of a new polishing technique using the MCF. Under a fluctuating magnetic field generated by a revolution of permanent magnet, the magnetic particles in the MCF show a higher particle disposition and an accumulating action compared to a static magnetic field. Thus the MCF generates the greater restoring ability but the

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Poulain, Agnieszka, Simon Kimber, Izabela Sobczak, and Maria Ziółek. "Investigation of metal supported MCF catalysts using PDF technique." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C917. http://dx.doi.org/10.1107/s2053273314090822.

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Functionalisation of silica catalysts (e.g. MCF) supported by anchoring of organosilanes (e.g. aminopropylalkoxysilanes) may change the catalytic properties of the system and also can be used for the further grafting of noble metals [1-2]. In the case of metal loading, in the following calcination process thermal activation and thermal transformation take place leading to the sintering of metal particles, which results in creation of bigger metal crystals. The pair distribution function (PDF) technique is a powerful tool for studying amorphous, crystalline and partially crystalline materials [

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33

Naumov, Anton A., Yuriy A. Bezobrazov, Nicolay G. Kolbasnikov, and Evgenii V. Chernikov. "Novel Physical Simulation Technique Development for Multistage Metal Plastic Deformation Processing." Materials Science Forum 762 (July 2013): 62–69. http://dx.doi.org/10.4028/www.scientific.net/msf.762.62.

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There are numbers of metal plastic deformation processes such as multistage hot rolling, rotational forging etc. where huge amount of strain is reached. To provide physical simulation of these processes, new tension-compression technique for Gleeble Systems was developed. All standard methods used in physical simulation with the help of Gleeble are described and compared with new technique. Several experiments are made and described in present work to show the difference between standard and developed techniques.

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Mayoral, Alvaro, Alma Vazquez-Duran, Stefan G. Heinze, and Miguel José-Yacamán. "Synthesis and Characterization of Branched Gold Nanoparticles." Materials Science Forum 644 (March 2010): 57–60. http://dx.doi.org/10.4028/www.scientific.net/msf.644.57.

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In this work we present the synthesis of branched gold nanoparticles based on the seed mediated growth technique. The materials have been characterized by advanced electron microscopy techniques in order to elucidate morphology, size and internal structure.

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Caissie, Daniel, and Nassir El-Jabi. "Comparison and regionalization of hydrologically based instream flow techniques in Atlantic Canada." Canadian Journal of Civil Engineering 22, no. 2 (1995): 235–46. http://dx.doi.org/10.1139/l95-033.

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Five hydrologically based instream flow assessment methods are compared for 70 rivers in Atlantic Canada; these methods included (i) Tennant method; (ii) 25% mean annual flow (25% MAF); (iii) median monthly flow (Q50) which includes the aquatic base flow (ABF); (iv) the flow equalled or exceeded 90% of time on a monthly flow duration curve (Q90); and (v) the statistical 7-day low flow frequency of a 10-year recurrence interval (7Q10). By comparing the different methods relative to the 25% MAF (the commonly used method in Atlantic Canada), we found that the Q90 and 7Q10 methods predicted extrem

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Saka, Masumi, Hironori Tohmyoh, M. Muraoka, Yang Ju, and K. Sasagawa. "Formation of Metallic Micro/Nanomaterials by Utilizing Migration Phenomena and Techniques for their Applications." Materials Science Forum 614 (March 2009): 3–9. http://dx.doi.org/10.4028/www.scientific.net/msf.614.3.

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Migration of atoms is presented to be utilized for fabrication of metallic micro/nanomaterials by controlling the phenomenon. Two kinds of migration phenomena are treated; one is electromigration and the other is stress migration. In addition to the formation of micro/nanomaterials, some achievements in enhancing their functions are demonstrated. One is a technique to fabricate nanocoils from the formed Cu nanowires. The others are techniques to weld or cut the micro/nanowires by using Joule heating. Finally, regarding evaluation of mechanical and electrical properties of the micro/nanomateria

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Henry, Anne, Xun Li, Henrik Jacobson, et al. "3C-SiC Heteroepitaxy on Hexagonal SiC Substrates." Materials Science Forum 740-742 (January 2013): 257–62. http://dx.doi.org/10.4028/www.scientific.net/msf.740-742.257.

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The growth of 3C-SiC on hexagonal polytype is addressed and a brief review is given for various growth techniques. The Chemical Vapor Deposition is shown as a suitable technique to grow single domain 3C epilayers on 4H-SiC substrate and a 12.5 µm thick layer is demonstrated; even thicker layers have been obtained. Various characterization techniques including optical microscopy, X-ray techniques and photoluminescence are compared for the evaluation of the crystal quality and purity of the layers.

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Nowotny, Steffen, Tatiana Vasilievna Tarasova, Anastasia Aleksandrovna Filatova, and Evgenia Yurievna Dolzhikova. "Methods for Characterizing Properties of Corrosion-Resistant Steel Powders Used for Powder Bed Fusion Processes." Materials Science Forum 876 (October 2016): 1–7. http://dx.doi.org/10.4028/www.scientific.net/msf.876.1.

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This work considers the possibilities of using static analysis and scanning electron microscopy techniques to determine the properties of disperse materials, i.e. corrosion resistant steel grades 12H18N9T (AISI 321) and 20H13 (AISI 420), taken into account in the selective laser melting technique.

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Boluwade, Alaba. "Joint Simulation of Spatially Correlated Soil Health Indicators, Using Independent Component Analysis and Minimum/Maximum Autocorrelation Factors." ISPRS International Journal of Geo-Information 9, no. 1 (2020): 30. http://dx.doi.org/10.3390/ijgi9010030.

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Soil health plays a major role in the ability of any nation to meet the Sustainable Development Goals. Understanding the spatial variability of soil health indicators (SHIs) may help decision makers develop effective policy strategies and make appropriate management decisions. SHIs are often spatially correlated, and if this is the case, a geostatistical model is required to capture the spatial interactions and uncertainty. Geostatistical simulation provides equally probable realizations that can account for uncertainty in the variables. This study used the following SHIs extracted from the Af

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Abdul Rahman, Mohd Fitri, Hanafi Ithnin, and Lahasen Dahing. "Comparison Elemental Studies of Prompt Gamma Neutron Activation Analysis (PGNAA) Using PHITS and Monte Carlo Simulation (MCNP) Codes." Materials Science Forum 888 (March 2017): 534–37. http://dx.doi.org/10.4028/www.scientific.net/msf.888.534.

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Elemental studies of any samples for example concrete are important for better characterization and inspection. Currently, many techniques have been applied such as x-ray, gamma-ray and etc. However further analysis is good to know without destroying the samples. Furthermore, simulations of any samples with Prompt Gamma Neutron Activation Analysis (PGNAA) are useful to experimentalist. In this study, Monte Carlo technique was used with two different type of software. The results were successful on elemental analysis from both techniques.

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Nesbitt, H. W., G. M. Bancroft, Y. Thibault, R. Sawyer, and R. A. Secco. "Reply to the comment by Malfait on “Spectroscopic studies of oxygen speciation in potassium silicate glasses and melts”." Canadian Journal of Chemistry 93, no. 5 (2015): 581–87. http://dx.doi.org/10.1139/cjc-2014-0586.

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Malfait challenges our XPS results by arguing that the XPS spectroscopic technique cannot be used to determine small amounts of O2– in potassium silicate glasses. Instead, he claims that there is no free oxide (O2–) in potassium silicate glasses based primarily on his 29Si MAS NMR spectroscopic results. In this rebuttal, we demonstrate that O1s XPS and well-resolved 2D 29Si MAF NMR spectral results of potassium disilicate (K2Si2O5) glass are consistent with each other and that both techniques indicate the presence of a few mol% of O2– in the glass. Neither of these techniques, however, support

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Caissie, Daniel, Nassir El-Jabi, and Cindie Hébert. "Comparison of hydrologically based instream flow methods using a resampling technique." Canadian Journal of Civil Engineering 34, no. 1 (2007): 66–74. http://dx.doi.org/10.1139/l06-095.

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The protection of fish habitat against the impact of water extraction in rivers is a recurring problem in water resources management. As such, a wide range of methodologies is available for the calculation of instream flows. This study focuses on historical streamflow methods that rely solely on hydrometric data for instream flow evaluation. The objectives of the study are to compare different historical streamflow methods and use a jackknife resampling technique to assess the variability of instream flow estimates. Results showed that methods based on a percentage of mean annual flow (MAF) ge

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Lopes, José Claudio, Mateus Vinicius Garcia, Matheus Valentim, et al. "Grinding performance using variants of the MQL technique: MQL with cooled air and MQL simultaneous to the wheel cleaning jet." International Journal of Advanced Manufacturing Technology 105, no. 10 (2019): 4429–42. http://dx.doi.org/10.1007/s00170-019-04574-5.

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Zhang, Ding Fei, Yu Ping Liu, Chang Guo Chen, and Ya Juan Xu. "Galvanic Corrosion Behavior and Three Protection Techniques of Magnesium Alloy Coupled to A6N01S-T5 Aluminum Alloy in NaCl Solution." Materials Science Forum 686 (June 2011): 146–50. http://dx.doi.org/10.4028/www.scientific.net/msf.686.146.

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In this work, the galvanic corrosion behavior of AZ31 magnesium alloy in contact with A6N01S-T5 aluminum alloy in NaCl solution was investigated by electrochemical method, the salt immersion method, SEM. And three protection techniques: (a) rubber gasket technique ,(b)organic coating technique and (c) anodizing technique were used to inhibit the galvanic corrosion. The results of open circuit potential and polarization curve method were explained the corrosion behavior of AZ31 and A6N01S-T5.It was found that AZ31 as anode was accelerated corrosion and A6N01S-T5 as cathode was also corrode in s

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Araújo Filho, Oscar Olimpio, Alexandre Douglas Araújo de Moura, Everthon Rodrigues de Araújo, Maurílio José dos Santos, Cezar Henrique Gonzalez, and Flávio José da Silva. "Manufacturing and Characterization of AA1100 Aluminum Alloy Metal Matrix Composites Reinforced by Silicon Carbide and Alumina Processed by Powder Metallurgy." Materials Science Forum 869 (August 2016): 447–51. http://dx.doi.org/10.4028/www.scientific.net/msf.869.447.

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Powder Metallurgy (PM) Techniques consists in a suitable technique to process composites materials. A specific PM technique of mechanical alloying developed to produce new materials in the solid state is a consolidated route to obtain aluminum alloys metal matrix composites. Aluminum alloys metal matrix composites allies the good properties of aluminum and its alloys but with poor mechanical properties and the reinforcement of ceramics phases which add better mechanical properties to these alloys. The research of this materials processing by PM techniques presented new materials with improved

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Bezerra, Carlos Augusto, Alexandre Douglas Araújo de Moura, Edval Gonçalves de Araújo, Maurílio José dos Santos, and Oscar Olimpio de Araújo Filho. "Features of the Processing of AA2124 Aluminum Alloy Metal Matrix Composites Reinforced by Silicon Nitride Prepared by Powder Metallurgy Techniques." Materials Science Forum 802 (December 2014): 108–13. http://dx.doi.org/10.4028/www.scientific.net/msf.802.108.

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Powder Metallurgy (PM) Techniques consists in a suitable technique to process composites materials. A specific PM technique of mechanical alloying developed to produce new materials in the solid state is a well known route to obtain aluminum alloys metal matrix composites. Aluminum alloys metal matrix composites allies the good properties of aluminum and its alloys but with poor mechanical properties and the reinforcement of ceramics phases which add better mechanical properties to these alloys. The research of this materials processing by PM techniques presented new materials with improved pr

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Rahman, Md Atiar, Md Shahidul Lslam, Md Shahadot Hossain Sheikh, Md Ibrahim Siddique, Md Ahsan Ullah, and Khandker Monzur Murshed. "Evaluation of Outcome Between Excisional Haemorrhoidectomy and Longo's Technique (PPH)." Journal of Surgical Sciences 17, no. 2 (2019): 66–72. http://dx.doi.org/10.3329/jss.v17i2.43704.

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Objective: The introduction of a Longo’s technique for the treatment of haemorrhoids has the potential for less postoperative pain, a short operating time, rapid healing and an early return to full activity. The outcome of Longo’s technique was compared with that of current standard surgery in a randomized controlled study, and followed up two years. Methods: In a prospective randomized study, 140 patients requiring surgical treatment for haemorrhoids grade 2, 3 and 4 were assigned to either MMF (Milligan-Morgan, Park Ferguson) or PPH (Procedure for prolapse and haemorrhoids) 70 each. Op

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Zhang, Xiaorui, Hongling Zhang, Qinwan Huang, Jilin Sun, Renchuan Yao, and Jin Wang. "Effect of Massa Medicata Fermentata on the Gut Microbiota of Dyspepsia Mice Based on 16S rRNA Technique." Evidence-Based Complementary and Alternative Medicine 2020 (September 23, 2020): 1–10. http://dx.doi.org/10.1155/2020/7643528.

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Massa Medicata Fermentata (MMF) is a traditional Chinese medicine (TCM) for treating indigestion and its related disorders. This study analyzes the effect of MMF on intestinal microorganisms in dyspepsia mice based on 16S rRNA technology. We take a dyspepsia model caused by a high-protein, high-calorie, high-fat diet. The 60 specific-pathogen free Kunming (SPF KM) mice were randomly divided into a model group n=12, an MMF group (LSQ group, n=12), a Jianweixiaoshi group (JWXS group, n=12), a domperidone group (DP group, n=12), and a blank group n=12. On the seventh day of administration, mice w

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Maire, Éric, Jean Yves Buffière, R. Mokso, P. Cloetens, and Wolfgang Ludwig. "Non Destructive Three Dimensional Imaging of Aluminium Alloys." Materials Science Forum 519-521 (July 2006): 1367–72. http://dx.doi.org/10.4028/www.scientific.net/msf.519-521.1367.

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This paper generally presents different techniques available to image the microstructure of materials in three dimensions (3D) at different scales. It then focuses on the use of the more versatile of these techniques for aluminum alloys : X-ray tomography. The paper describes the recent improvements (spatial and the temporal resolution, grain imaging). Electron tomography is also presented as a promising technique to improve the spatial resolution.

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Shimada, Kunio, Hiroshige Kikura, Hideharu Takahashi, and Ryo Ikeda. "Novel Adhesion Technique Using Metallic or Non-Metallic Hydrous Oxide of Metal Complexes Involving Magnetic Compound Fluid Rubber under Electrolytic Polymerization and Magnetic Field for Producing Sensors." Sensors 19, no. 3 (2019): 689. http://dx.doi.org/10.3390/s19030689.

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As per sequential studies on new types of soft rubber for the artificial skin of robots, smart sensors, etc., we have proposed and investigated hybrid skin (H-Skin) and haptic sensors by using magnetic compound fluid (MCF), compounding natural rubber latex (NR-latex), and applying electric and magnetic fields. Through electrolytic polymerization, the MCF rubber is solidified. The MCF rubber has hybrid sensing functions and photovoltaic effects, and electric charge as battery. In case of the production of soft rubber sensors, however, the problem of adhesion between metal electrodes and rubber

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