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Online since: October 2014
Authors: Pedro D. Silva, Pedro Dinis Gaspar, J. Nunes, L.P.A Andrade
The study is based on the result analysis of survey data and energy characteristics of the participating companies belonging to the following agrifood sectors: meat, dairy, horticultural, distribution and wine.
With the results of this work is possible to rating the companies in relation to reference levels of energy and GHGs emissions and thus promote the rational use of energy by the application of practice measures for the improvement of the energy efficiency and the reduction of GHGs emissions.
In this context, the development of studies that allow the reduction or rationalization of energy consumption is important [1].
The InovEnergy project is the most relevant Portuguese project in this context, aimed to evaluate and promote energy efficiency measures applicable to the Portuguese agrifood industry, through the identification of energy consumption profiles of the greatest number of data sets collected to date in portuguese agrifood companies [14-17].
Sector Employees Business volume (103€/year) Raw material (ton/year) Final product (ton/year) Electricity (MWh/year) Meat 4 - 48 250 – 8000 42 – 4466 27 – 3349 38 – 1014 Dairy 6 -31 130 – 6000 140 – 1500 25 – 1322 27 – 1454 Horticultural 2 - 26 200 - 2500 400 - 4650 400 - 4650 25 - 1025 Distribution 9 -67 500 - 12500 30 - 2500 30 - 2500 136 – 1027 Wine 1 -22 50 - 4687 50 - 13000 33 – 9750 [kl] 9 - 230 Results analysis and discussion In order to evaluate the portuguese panorama of energy consumption and GHGs emissions in agrifood industry and to identify the practice measures and strategies that promote energy efficiency, surveys and audits data was obtained, crosschecked and analysed.
Online since: May 2011
Authors: Wei Li, Guo Yu Sun
Methods and data Each investigated mill is an integrated bleached kraft pulp and paper mill.
For the cost, according to the production capacity of each enterprise and relevant investment soured from reference [13] presented in Table 2, the reduction of PCDD/Fs for unit investment are about 26.6-29.7μgTEQ/Yuan.
Table 2 The production capacity and cost of transformation projects for investigated mills in China Mill Production Capacity [104t] Imported equipment price [104Yuan] Domestic equipment price [104Yuan] M1 3.4 3840 2225 M2 5 5250 2900 M3 6.8 7200 4400 M4 4 4700 2860 M5 10 10500 5800 The reduction effect of PCDD/Fs by using ECF was based on the reed pulp in demonstration program, so there may be some differences in the practical reduction effects for other mills which don’t use reed as raw material.
Due to the limitation of investigation data, the study didn’t refer to black liquor emission load and energy consumption which are also critical to evaluate the application effect of ECF.
Due to the limited data, the analysis didn’t involve some equally vital aspects such as black liquor emission load and energy consumption.
Online since: May 2012
Authors: Iulian Ştefan, Claudiu Nicolicescu, Mario Trotea, Olimpia Ghermec, Sorin Vasile Savu
After using the microwave heating process it was observed a significant reduction of temperature-time parameters to BHFM formation for mechanically alloyed mixtures compared to homogeneous mixture.
These advantages include unique microstructure and properties, improved product yield, energy savings, reduction in manufacturing cost and synthesis of new materials [1].
The suitable graph for the stoichiometric mixtures of BaOx6α-Fe2O3 formed by mechanical alloying compared with the homogeneous mixture was drawn in figure 2 based on the data presented in table 3, where the maximum values of particle size ranges appear.
Fig. 2 Maximum particle size for mixtures of BaCO3 and 6α-Fe2O3 powders It can be seen in the resulting data from particle size analysis that starting from a granulation of 1,5 μm for stoichiometric homogeneous mixture of BaOx6α-Fe2O3, has reached to 0,74 μm for mechanically alloyed mixture 5 hours and the last mechanically alloyed mixture for 20 hours show a significant reduction of particle size located around 96 nm.
Sample Heating temperature [oC] Heating time [τ min] 1 HM 1050 ≈15 2 MA5h 950 3 MA20h 900 The choice of the presintering temperatures was done taking into account that according to data from literature, the volumetric microwave heating efficiency is to reduce considerably the presintering temperature by over 300oC and presintering time by over 80 %.
Online since: November 2011
Authors: Yan Cao, Xue Ming Qian, Xiao Ping Lin
And the reduction of the bounding box’s height is controlled as restraint of vertex culling.
In order to describe the algorithm better, the denotations are explained as follow: Figure1 Calculation of local curvature As shown in Figure1, for a vertex PK, the triangle patches which include Pk are marked as :{} ;one triangle patch among {} is marked as ,which is called datum triangle.
For example, Figure1 is longer than ,triangle is more different than relative to datum triangle. and reflect curvature around PK, the biggeris,the bigger curvature is.
Comp Geom-Theor Appl 25:171–196 [2] Kim NH, Yoo SK, Lee KS (2003) Polygon reduction of 3D objects using Stokes’ theorem.
Comput Vis Image Und 24:1123–1131 [6] Lee KH, Woo H, Suk T (2001) Data reduction methods for reverse engineering.
Online since: November 2012
Authors: Wen Ting Jiang, Jian Min Wang, Neng Jun Wang, Li Li Yuan
The reduction of ultimate load and increase in deflection of beams after fire in shear test were also observed.
Fig.2 Furnace temperature progression curve Test results and discussion The data generated from above tests can be used to study the overall performance of reinforced ceramsite LWAC beams after fire.
The average reduction of the shear ultimate capacity of beams LC20-Q-F1 and LC20-Q-F2 is about 20%.
For the main reinforcing bars, the yielding load after fire reduced about 3.8%, and there is no reduction for the ultimate load capacity listed in Table.4.
The yielding load of reinforcing bars in beams after fire reduced about 3.8%, and there is no reduction observed in the ultimate loads.
Online since: March 2015
Authors: Fang Zhang, Xi Chen, Yu Hui Sha
The deviation angle can reach about 20° after 70% applied reduction under the friction coefficient of 0.20.
Introduction Weight reduction has become one of the major goals and principals of engineering design and manufacturing.
The channel die compression was performed up to 70% reduction, and the data of shear strain fraction (activity) for each deformation mode and crystallographic orientation were extracted at each 10% reduction.
Table 1 gives the shear strain fractions of pyramidal slip at 70% applied reduction for various initial orientations.
Table 2 lists the deviation angles from ideal <0001>//ND after 70% applied reduction for various initial orientations.
Online since: March 2012
Authors: Anita Ramli, Duvvuri Subbarao, Muhammad Farooq
It is clear from TPR profile that Mo/γ-Al2O3 catalyst displayed two reduction peaks with temperature maxima at 535 oC and 971oC, ascribed to the reduction of Mo oxide species.
The first peak at Tmax= 535 oC is attributed to the reduction of Mo6+ to Mo4+ species of polymeric Mo structures.
The second peak at Tmax= 971 oC is attributed to the further reduction of Mo species produced during the reduction in the first stage, together with the partial reduction of support strongly interacting with coordinated tetrahedral Mo species (Mo3+ to Mo2+) [10].
This increase in the reduction temperature maxima showed strong metal-support interaction.
Representative H2 TPR data for different catalysts Catalyst Reduction Temperature (oC) Peak 1 Peak 2 Mo/γ-Al2O3 535 971 Mo/γ-Al2O3- 5 wt % MgO 596 975 Mo/γ-Al2O3- 10 wt % MgO 627 990 Mo/γ-Al2O3- 15 wt % MgO 644 997 Mo/γ-Al2O3- 20 wt % MgO 664 1004 Similarly, the XPS results for different Mo catalysts are given in the Table 3.
Online since: December 2014
Authors: Jiří Šafka, Martin Seidl, Petr Zelený, Martin Lachman
This process enables significant reduction of tool-path necessary for machining these shapes which also leads to reduction of the working time.
Data from CAD software in the STL format were used for this calculation.
The data are formed by Cartesian coordinates of vertex points and normal of each of the triangles in the given network.
This software enables loading STL data of general surfaces.
The described processed algorithm enables loading data in STL format.
Online since: January 2013
Authors: Radek Melich, Jan Václavík, Vít Lédl, Tomáš Vít
Data from [1-6] The application of materials based on silicon carbide should be a solution to many of the shortcomings that arise from the use of conventional materials.
The measured data are provided to the polishing machine, which processes the sample with respect to the data.
Analysis also shows the critical points and the possibilities for mass reduction; 4.
The results correspond to the conclusions drawn from the data in Table 2.
References [1] Shott, Optical Glass Data Sheets. www.schott.com (2009) [2] Crystran Ltd., www.crystran.co.uk/materials-data.htm (2009) [3] Corning, www.corning.com (2006) [4] Hoya Corporation, Optical Glass Master Datasheet, Excel file, www.hoyaoptics.com/products/document_library.htm (2010) [5] P.R.Yoder, Opto-mechanical Systems Design, Bellingham, Wash., SPIE, Pg 119-120. (2006) [6] Information on Matweb, Material Property Data. 201, www.matweb.com (2010) [7] Information on ESA Science and Technology, Solar Orbiter, http://sci.esa.int/solarorbiter
Online since: May 2014
Authors: Thidarat Cotanont, Chalong Buaphan, Kamonporn Kromkhun
Single well pump test data from 17 wells in the Phu Phan aquifer (30-120 m depth) were analyzed to obtain transmissivity (T) and K.
Required data are the discharge, Q, a set of drawdowns, s, and times, t, from the start of pumping.
From the measurement data, we obtained a set of pairs of s and t.
The values of K were evaluated from these data using the Jacob method as mention above.
The empirical probability [6], Fs, was calculated by Fs = m/(n+1), m is rank of data, and n is number of data.
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