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Online since: December 2013
Authors: Wei Qi Chen, Luo Ping Zhang, Xin Xin Wu, Yan Ru Cai
However, the problems of coastal environment and resources, such as the destruction of typical ecological systems, the rapid reduction of coastal wetland, the decline in biodiversity, marine pollution, the conflict on resource utilizations and so on, have been getting obvious in recent years due to the intense economic activities in coastal area, and the vulnerability and complexity of coastal ecosystems.
Given some results obtained from our previous studies on the valuation of ecosystem services in Xiamen Bay, and the limit of time, data and cost, the paper mainly uses the benefit transfer method coupled with the surrogate market approach to value the coastal ecosystem services.
Given some results obtained from our previous studies on the valuation of ecosystem services in Xiamen Bay, and the limit of time, data and cost, the paper mainly uses the benefit transfer method coupled with the surrogate market approach to value the coastal ecosystem services.
Online since: December 2024
Authors: Abubakar Abubakar, Mirna Rahmah Lubis, Thiara Puspa Rahmania, Intan Syarwani, Umi Fathanah, Syawaliah Muchtar
In this context, the addition of additive solutions seems to influence the reduction of the amount of non-solvent required during the phase separation process.
From the data shown in Figure 3, it can be concluded that increasing the concentration of Mg(OH)2 added to the PES membrane has an impact on increasing membrane porosity.
From the data shown in Figure 3, it can be concluded that increasing the concentration of Mg(OH)2 added to the PES membrane has an impact on increasing membrane porosity.
Online since: December 2014
Authors: Felipe José Silva, Alfonso Pappalardo, Said Jalali
The specification of geopolymer material provides numerous advantages over other materials, which include: reproduction of elements in high definition and excellent surface finish from standard fiberglass molds; rapid and controllable curing, which allows increased productivity through reuse of molds; low shrinkage allowing the perfect fit between parts; high resistance to fire and heat; durability and significant reduction of greenhouse gas emissions in its production, which generate environmental benefits proportionately.
Table 1: Molar ratio of geopolymer RAW MATERIALS OXIDE MOLAR RATIO PRECURSOR METAKAOLIN SiO2:Al2O3 2 ACTIVATOR POTASSIUM SILICATE SiO2:K2O 3.26 WATER 50% SILICATE + POTASSIUM HIDROXIDE SiO2:K2O 1.65 H2O:K2O 11.3 WATER 45% GEOPOLYMER TYPE K-(PSS)* Si:Al=2 *POTASSIUM-(POLI-SIALATE SILOXO) SiO2:Al2O3 3.5 K2O:SiO2 0.27 K2O:Al2O3 0.94 H2O:Al2O3 9.7 To calculate the quantities of starting materials, in addition to the technical data of products manufactured, X-ray Fluorescence analysis was realized to quantify the oxides present in an amorphous state.
Table 1: Molar ratio of geopolymer RAW MATERIALS OXIDE MOLAR RATIO PRECURSOR METAKAOLIN SiO2:Al2O3 2 ACTIVATOR POTASSIUM SILICATE SiO2:K2O 3.26 WATER 50% SILICATE + POTASSIUM HIDROXIDE SiO2:K2O 1.65 H2O:K2O 11.3 WATER 45% GEOPOLYMER TYPE K-(PSS)* Si:Al=2 *POTASSIUM-(POLI-SIALATE SILOXO) SiO2:Al2O3 3.5 K2O:SiO2 0.27 K2O:Al2O3 0.94 H2O:Al2O3 9.7 To calculate the quantities of starting materials, in addition to the technical data of products manufactured, X-ray Fluorescence analysis was realized to quantify the oxides present in an amorphous state.
Online since: April 2019
Authors: Justus Uchenna Anaele, Anthony Nnamdi Nnodum, Gaius Chukwuka Nzebuka, Chijioke Peter Egole
Most of these materials available in the local markets were often supplied without manufacturer’s data sheet.
SAMPLES n Strength Coefficient (K) N/mm2 Joint Efficiency %Elongation % Reduction in Area Tensile Strength N/mm2 PARENT MATERIAL 0.421 1082.47 - 77.24 65.17 525 TIG SPECIMEN 0.382 942.94 80.95% 27.75 56.25 425 E 310 - 16/10 0.435 1179.68 96.82% 28.75 27.67 508 E308-16/12 (Lime-titania) 0.353 1050.48 98.42% 35.75 42.50 517 E 308 - 16/12 (Rutile) 0.406 1102.13 80.95% 18.00 15.42 425 E 308 - 16/10 (Rutile) 0.379 1084.64 90.48% 26.00 13.00 475 Fig. 2: Fusion zone micrograph of E 308 – 16/12 (rutile) welded joint.
SAMPLES n Strength Coefficient (K) N/mm2 Joint Efficiency %Elongation % Reduction in Area Tensile Strength N/mm2 PARENT MATERIAL 0.421 1082.47 - 77.24 65.17 525 TIG SPECIMEN 0.382 942.94 80.95% 27.75 56.25 425 E 310 - 16/10 0.435 1179.68 96.82% 28.75 27.67 508 E308-16/12 (Lime-titania) 0.353 1050.48 98.42% 35.75 42.50 517 E 308 - 16/12 (Rutile) 0.406 1102.13 80.95% 18.00 15.42 425 E 308 - 16/10 (Rutile) 0.379 1084.64 90.48% 26.00 13.00 475 Fig. 2: Fusion zone micrograph of E 308 – 16/12 (rutile) welded joint.
Online since: October 2013
Authors: Chuang Zhu, Xiao Min Cheng, Han Zhang, Xian Jie Yang
At present, many countries are calling for energy saving and emission reduction, developing and using clean energy.
Tkatcheva, et al., A physical model of molten salt data, Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences. 63 (2008) 462-466
Tkatcheva, et al., A physical model of molten salt data, Zeitschrift Fur Naturforschung Section a-a Journal of Physical Sciences. 63 (2008) 462-466
Online since: August 2014
Authors: Chun Rong Li, Feng Han, Wen Ke Wang, Hong Zhang Deng, Xiao Hong Zhao, Rong Wang
CO2 capture and storage (CCS) has been proposed as one of effective measures to reduce emissions by many countries around the world due to its great emission reduction potential [5,6,7,8,9,10,11,12,13].
Data processing Community diversity (P) analysis.
Data processing Community diversity (P) analysis.
Online since: January 2022
Authors: Qiang Zhu, Xiao Gang Hu, Wen Ying Qu, Min Luo, Gan Li, Hong Xing Lu
Statistical data of the number of (a) the annual car sales in China and the world [4], (b) the built base stations over the past six years [5].
As a concluding remake, with the strengthening of energy saving and emission reduction in the automotive field and the further upgrading of modern communication technology in recent years, the demand for light-weight, high-performance and geometrically complex components are progressively rising, which brings a promising opportunity for the development and application of SSP of alloys and composites.
As a concluding remake, with the strengthening of energy saving and emission reduction in the automotive field and the further upgrading of modern communication technology in recent years, the demand for light-weight, high-performance and geometrically complex components are progressively rising, which brings a promising opportunity for the development and application of SSP of alloys and composites.
Online since: October 2010
Authors: Osamu Odawara
In Japan, the research and development on simultaneous synthesis and sintering has actively been progressed by applying external forces to SHS; the production technique for metal-ceramic composite pipes by applying centrifugal force on thermite reactions [3, 4], TiB2-Al composites formation by an SHS technology under microgravity environment formed in such as a dropping capsule, parabolic flight and rocket [5], a reduction of convective heat and mass transfer in a swirling gas chamber with a central heater [6], etc.
The experimental date on mechanical properties of the produced long ceramic-lined pipe shows that the differences of these properties in the direction of pipe length are negligibly small within the present testing precision, except for the data near the pipe end.
The experimental date on mechanical properties of the produced long ceramic-lined pipe shows that the differences of these properties in the direction of pipe length are negligibly small within the present testing precision, except for the data near the pipe end.
Online since: April 2014
Authors: Jörg Franke, Christina Ramer
Thereby no adapted safety strategies - as the reduction of the robot velocity in case of an approaching worker in contrast to no changes in case of emerging static obstacles - are possible.
To generate bounding boxes on the basis of a given point cloud the principal component analysis (PCA), a standard technique for statistical data analysis, can be deployed.
To generate bounding boxes on the basis of a given point cloud the principal component analysis (PCA), a standard technique for statistical data analysis, can be deployed.