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Online since: June 2024
Authors: Ali E. Elrefaei, Mostafa Alsaadawi, Mohamed Abdolwahab, Ahmed Faisal Oan, Mohamed M. Elshafiey
A series of tests were carried out on the concrete in both fresh and hardened states to evaluate the variation in concrete performance due to the varying percentages of WSF added to the different concrete mixtures. 2.1 UHPC Constituents Properties 2.1.1 Cement: Ordinary Portland cement (OPC) CEM I 42.5 N which was manufactured by EL-Suez company for Cement in Egypt, was used to prepare all concrete mixtures in this research.
Akeed et al., “Ultra-high-performance fiber-reinforced concrete.
El-Shorbagy, “Ultra-High-Performance Concrete (UHPC): A State-of-the-Art Review,” Materials, vol. 15, no. 12, pp. 4131, June 2022
Gong et al., “Utilization of fibers in ultra-high performance concrete: A Review,” Composites Part B: Engineering, vol. 241, p. 109995, 2022
Online since: May 2013
Authors: Qi Hong Zhu, Hong Xia Xia
References [1]Zhu W L,Cui L H,Ouyang Y,et al.Kinetic Adsorption of Ammonium Nitrogen by Substrate Materials for Constructed Wetlands[J].Pedosphere,2011,21(4):454-463
[2]Lü G Y,He H D,Yang D J,et al.Cutting effects on growth and wastewater purification of Cyperus alternifolius in constructed wetland.
[3] Hu L M,Hu W P,Deng J C,et al.Nutrient removal in wetlands with different macrophyte structures in eastern Lake Taihu,China[J].Ecological Engineering,2010,36(12):1725-1732
[4] Han H,Zhang Y Y,Cui C C,et al.Effect of COD level and HRT on microbial community in a yeast-predominant activated sludge system[J].Bioresource Technology,2010,101:3463-3465 [5] Zhao Y,Li F M,Wang H Y,et al.2012.Characteristics of microbial community metabolism in aerobic/anaerobic subsurface flow constructed wetland[J].
[14] Al N, El P,lo M.The effect of pre-aeration on the purification processes in the long-term performance of a horizontal subsurface flow constructed wetland[J].Science of the Total Environment, 2007, 380: 229~236
Online since: July 2013
Authors: Pramod Koshy, James Ransford Dankwah
Rahman et al. [4] investigated the use of coke/waste plastics blends in EAF steelmaking and concluded that the addition of plastics improved slag foaming behaviour.
Similar results were obtained by Nishioka et al. [6], who observed that the thermal decomposition of polyethylene and polypropylene at 1000-1300 °C consists predominantly of CH4 and H2.
Dankwah et al. [5] mentioned the absence of fixed carbon as being especially responsible for the low level of carburisation observed when HDPE was used as reductant.
(3) Kongkarat et al. [16] found that carburisation is affected by the ash content of the carbonaceous material.
El-Geassy and V.
Online since: July 2015
Authors: Guo Yin Huang, Jin Tao Liang, Yong Huang, Gui Yin Li, Long Fei Ma, Ming Yuan Guan
Lu, E.L.
Soran, et al.
Wu, et al.
Yali, et al.
Lee, et al.
Online since: December 2018
Authors: Irina Sizova, Ole Geisen, Omar Fergani, Markus Bambach
Semiatin et al. [9, 10] considered the hot deformation behavior and microstructure of heat-treated und HIPed laser deposited Ti–6Al–4V samples.
Jiang et al. [11] reported the significant improvement of mechanical properties of hot-forged SLM stainless steel 316L samples in comparison to SLM material.
The microstructural reasons for irregular globularization were discussed in studies of Semiatin et al. [14] and Weiss et al. [15].
Park et al. reported a Qw value of 619 kJ/mol [19], Lue et al. calculated a value of 677 kJ/mol [20].
Roegner, E.L.
Online since: July 2019
Authors: Surachai Dechkunakorn, Niwat Anuwongnukroh, Wassana Wichai, Peerapong Tua-Ngam, Kanuengnit Pongpat
Similarly, Bartzela et al [16] presented an interval between 139-239 g, and Lombardo et al [17] disclosed values between 78.4-109.6 g [15-17].
All the authors tested different manufacturers of superelastic orthodontic 0.014” archwires, exception Bartzela et al. who tested a 0.016” round wire.
[9] Alobeid A, Hasan M, Al-Suleiman M, El-Bialy T.
[18] Wu ATJ, Turk T, Colak C, Elekdag-Turk S, Jones AS, Petocz P, et al.
[19] Paetyangkul A, Turk T, Elekdag-Turk S, Jones AS, Petocz P, Cheng LL, et al.
Online since: July 2011
Authors: Somkiat Tangjitsitcharoen, Channarong Rungruang
The aluminium such as Al 6063 is most popularly used for the mechanical parts.
The workpiece material is aluminium (Al 6063) with the size of 64 mm x 64 mm x 45 mm.
Abou-El-Hossein, B.
Abou-El-Hossein, K.
Online since: November 2012
Authors: Frederic Danesi, Nicolas Gardan, Elvis Kwassi
. & al. [6] remove discontinuities smaller than a tolerance specified by the user.
P. & al. [9] suggest a methodology which directly meshes the imperfect CAD model.
Yang, J. & al. [3] use the design history to repair the CAD model.
S. & al. [11] improve the previous algorithm.
M., Geometric Models Quality in Proceeding of Micad 2002, pp 149-160 [5] Bory, M., El Yafi, F., 3D Models Quality in Proceeding of Micad 2002, pp 161-168 [6] Uva, A.
Online since: December 2012
Authors: Yun Zhang, Ying Sun, Xin Ke
Arsenic into soil neutral phosphatase Km increased, Vmax decreased, which belongs to the mixed inhibition References [1] Chen Suli, Chen Qing, Hu Taihui,et al.
,et al.
[8] SPEIR T.W,KETTLES H.A,PARSHOTAM A, el al..Simple kinetic approach to determine the toxicity of As(V) to soil biological properties.
[9] Wang Liming, Xu Dongmei, Chen Bo ,et al. 2004.
Chinese Journal of Ecology,27(5):740-744 [12] Sper T.W, Kettles H.A, Parshotam A, et al. 1999.
Online since: October 2018
Authors: Hendra Dian Adhita Dharsono, Richata Fadil, Myrna Nurlatifah Zakaria, Sebastian Sunardhi Widyaputra, Elfira Megasari, Arief Cahyanto
According to Xu et al., Carbonate apatite (CO3Ap) constitutes the inorganic components of enamel, dentine, and bone, and has a carbonate concentration in the range of a few percents by weight [10].
Trope et al., stated that premixed bioceramics usually require moisture from the surrounding tissues initiates the setting reaction.
Other literature by Debelian et al., studied about physical properties of manufactured bioceramic (BC) sealer.
Zakaria, et. al, Fabrication of carbonate apatite cement as endodontic sealer, Key Eng.
El-Ghannam.
Showing 6611 to 6620 of 9913 items