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Online since: June 2006
Authors: Maik Mracek, Piotr Vasiljev, Tobias Hemsel, Jörg Wallaschek
Other causes for frequency-deviation of different modes might result from non-linearity, such as the intermittent contact mechanism of a vibrator and driven part and material-non-linearity.
Umeda: Thin rotary and linear ultrasonic motors using a double-mode piezoelectric vibrator of the first longitudinal and second bending modes (Japanese Journal of Applied Physics, Vol. 31-1, No 9B, 1992), p. 3073-3076 [3] S.
Tomikawa: Ultrasonic Motors Theory and Applications (Oxford Science Publications, Clarendon Press, Oxford, 1993) [4] P.
Online since: September 2013
Authors: Sheng Chuan Liu, Gui Ling Ding, Gang Chen
Table 1 Physical parameters of pavement, Subgrade and foundation Structure layer Material Thickness /cm Elastic modulus /MPa Poisson's ratio Unit weight/kN·m-3 Cohesion /kPa Friction angle /° Upper layer AC-16 Asphalt Concrete 5 1800 0.3 24.3 Middle layer AC-20 Asphalt Concrete 6 1800 0.3 24.4 Upper layer AC-25 Asphalt Concrete 7 1200 0.3 24.5 Base 4.5% water stable gravel 36 1500 0.25 22 Subbase 5% water stable (sand + gravel) 20 1300 0.25 22 Cushion layer Sand cushion 20 150 0.3 21 Embankment High water content cohesive soil 250 40 0.3 20 Sand cushion Sand cushion 200 150 0.3 21 Foundation Silt clay 400 20 0.31 17.8 22.4 31.6 Clayey mudstone 1200 60 0.28 18 22.6 10.31 Fig.9 Computational model 3.2 Frost heave and freeze-thaw strength control standards for clay soil (1) The frost heave control standard for clay soil Roadbed calculations of differential deformation based on the design service life (15 years) are shown in Table 2.
Cold Regions Science and Technology. 2007, 48(l): 44-54
Journal of the Soil Mechanics and Foundations Division, 1966, 92(5), 67-92
Online since: December 2012
Authors: Xiao Jun Chen, Xiao Ling Dai, Wen Bo Yu
Hereby, architects have to master a wide range of professional knowledge, so as to coordinate factors irrelevant with their occupation, such as history, humanity, natural environment, economic development, marketing, construction progress and material selection.
Domestic and Oversea Integrated Exchange Education By exchanging with University of Applied Sciences Lübeck, Sapienza University of Rome and other famous universities domestic and overseas, including visiting research and discussion, jointed curriculum design, visiting, as well as visiting, surveying, learning and other activities participated by young teachers and students, Architecture Department has been continually expanding its education space.
Architectural Journal. 2012.
Online since: September 2014
Authors: Samia Achour, Fouad Chabbi, Saâdia Guergazi
Drinking Water Chlorination And Adverse Public Health Outcomes In Algeria Samia Achour1, a, Fouad Chabbi1,b and Saâdia Guergazi1,c 1Research laboratory in Subterranean and Surface Hydraulics, LARHYSS Faculty of Science and Technology-Department of Civil Engineering and Hydraulics, University of Biskra, PO Box 145, RP, 07000, Biskra, Algeria asamia.achour@larhyss.net (Corresponding Author) Keywords: Chlorine, trihalomethane, organic pollution, pathogens, algerian water.
Material and Methods Sampling Location.
[8] JORADP: Guidelines for drinking water quality- Official Journal of People’s Democratic Republic of Algeria,No18 (2011)
Allem: African Journal of Cancer, Vol.6, No 1 (2014), p. 22
Online since: February 2012
Authors: Zhi Qiang Ni, Jing Rui Ren, Bao Ling Yang, Zhi An Zheng, Zhen Jiang Gao
The parameters of the contact force are estimated by Hertz theory; we get accurate values of parameter by corresponding modification in light of the parameters table of material contact in the process of emulation.
Shandong University of Science and Technology (2006).
American Journal of Alternative Agriculture, 4(2): 59-64(1989)
Journal of Agricultural Mechanization Research, 2008, (4):143-145.
Online since: August 2013
Authors: Stephan Rinderknecht, Bruno Strah
The flywheel workload can be increased using fiber-reinforced material, which increases the energy density.
Maximum rotational speed with objectives to achieve high utilization without exceeding maximum material stress determines the required moment of inertia and hence its geometry.
The ecological assessment considers the overall material and energy flows and additional environmental pollution over the product life cycle.
CTI-Symposium Innovative Automotive Transmissions, Hybrid & Electric Drives, Dezember 2008. [8] Torsten Felzer and Rainer Nordmann, "Evaluating the Hands-Free Mouse Control System: An Initial Case Study.," in Lecture Notes in Computer Science - Computers Helping People with Special Needs.
Montague, "Test and Theory for Piezoelectric Actuator-Active Vibration Control of Rotating Machinery," Journal of Vibration and Acoustics, vol. 113, pp. 167-175, 1991. [20] Alireza Alizadeh. (2005) Robust Control for Active Vibration Damping of Elastic Rotors with Piezo Stack Actuators (in German), Dissertation, TU Darmstadt.
Online since: February 2018
Authors: Florea Dinu, Dan Dubină, Ioan Marginean
The present paper, summarizing studies carried out within last years at the Research Center of Mechanics of Materials and Structural Reliability-CEMSIG ([5-8]), from the Department of Steel Structures and Structural Mechanics, is intended to provide some new evidence on the previous FEMA 277 conclusions.
The material in members and connections is S355 structural steel.
For the full-scale AEM models, same properties were adopted (meshing, material properties, acceptance criteria).
[14] ELS, Extreme loading for structures, Applied Science International, Durham, NC (2010)
Shyu, A proper estimation of inelastic dynamic increase factor in support-loss experiments, in Journal of the Chinese Institute of Engineers, 38 (2014) 372-381.
Online since: October 2007
Authors: Tadeusz Uhl, Krzysztof Mendrok
Modal analysis of bridges for the SHM purposes Krzysztof Mendrok a , Tadeusz Uhl b AGH University of Science and Technology, al.
Betti, R., Testa, R.B.: Vibration and Damage Control for Long-Span Bridges, Journal of Smart Materials and Structures, Vol. 4, pp. 9 l-100, 1995, [2].
M., A Systematic Numerical Analysis of the Damage Index Method Used for Bridge Diagnostics, Smart Structures and Materials 2000: Smart Systems for Bridges, Structures, and Highways, Proceedings of SPIE, Vol. 3988, Newport Beach, CA, pp. 154-164, 2000
Online since: May 2021
Authors: Achmad Roesyadi, Elva Febriyanti, Danawati Hari Prajitno, A.R. Yelvia Sunarti
a) Calcination equipment and (b) Hydrocracking process equipment Materials.
Nyamplung oil as a raw material has a high oil yield of around 50-73% and has a competitive advantage in the future [10] obtained from Cirebon Regency, West Java.
And the characterization of measurements from X-ray rays during electron firing at electron microscopy (SEM) to determine the chemical composition of a material (sample) on a micro-scale and nanoscale (EDX).
Analysis of Fatty Acid Profiles of Free Fatty Acids Generated in Deep-Frying Process, Journal of Food Science and Technology, Springer.
Online since: July 2025
Authors: Qonitah Fardiyah, Barlah Rumhayati, Azaria Ivana Ramadani
The Influence of Potential on the Performance of Aluminum-Aluminum (Al-Al) Electrodes Based on Microplastic Removal Efficiency and Turbidity Level Azaria Ivana Ramadani1,a, Qonitah Fardiyah2,b*, Barlah Rumhayati3,b 1,2,3Chemistry Department, Faculty of Mathematics and Natural Sciences, Brawijaya University, Malang, Indonesia aazaivana@student.ub.ac.id, bfardiyah@ub.ac.id*, brumhayati_barlah@ub.ac.id Keywords: electrocoagulation, flocculation, electrolyte, water quality, environment Abstract.
Introduction Since the discovery of plastic raw materials, its usage has continued to increase in tandem with technological advancements, where almost all of human needs are inseparable from its use.
However, the most commonly used electrode material for removal is aluminum [13].
Experiments Chemicals and instrumentation The material used in this study was polyvinyl chloride (PVC) particles with a particle size of 155 μm, commercial aluminum plates (purity 99%) obtained from Logam Utama Store Malang, microporous membranes, Sodium Dodecyl Sulphate (SDS), Sodium Chloride (NaCl), and deionized water.
Indonesian Journal of Chemistry, 24(5), 1498–1513. 2024, doi: 10.22146/ijc.95589
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