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Online since: June 2014
Authors: Francesco Saverio Nesci, Nicoletta Maria Iellamo
It must be taken in order to produce electric power and contribute, in compliance with the goals set by the climate-energy package (20-20-20), to the reduction of greenhouse gas emissions and to improve energetic efficiency; it is expected to increase the employment of renewable energy on the total of energetic consumption.
PROVINCE Olive cultivation areas (ha) Usable pruning waste (T) Derivable Biochar (T) CS 55.955,20 111.910,40 39.168,64 RC 49.999,10 99.999,20 34.999,10 CZ 38.470,30 76.940,60 26.929,21 KR 23.186,40 46.372,80 16.230,48 VV 18.303,60 36.607,20 12.812,52 CALABRIA 185.914,70 371.829,40 130.140,29 According to the collected data that show a correspondence of 1 t. of underground biochar to 2,93 t. of carbon dioxide, the following calculations have been carried out (table 5) [5]: Retrieved T. of CO2 Provinces T. of produced biochar Total retrievable CO2 2,93 CS 39.168,64 114.764,12 RC 34.999,10 102.547,36 CZ 26.929,21 78.902,59 KR 16.230,48 47.555,31 VV 12.812,52 37.540,68 CALABRIA 130.139,95 381.310,06 Contextually, the CO2 deriving from stubble and farming waste combustion on the regional territory has been calculated in order to make a balance of useful and damaging quantities of carbon (table 6) [5].
It must be taken in order to produce electric power and contribute, in compliance with the goals set by the climate-energy package (20-20-20), to the reduction of greenhouse gas emissions.
PROVINCE Olive cultivation areas (ha) Usable pruning waste (T) Derivable Biochar (T) CS 55.955,20 111.910,40 39.168,64 RC 49.999,10 99.999,20 34.999,10 CZ 38.470,30 76.940,60 26.929,21 KR 23.186,40 46.372,80 16.230,48 VV 18.303,60 36.607,20 12.812,52 CALABRIA 185.914,70 371.829,40 130.140,29 According to the collected data that show a correspondence of 1 t. of underground biochar to 2,93 t. of carbon dioxide, the following calculations have been carried out (table 5) [5]: Retrieved T. of CO2 Provinces T. of produced biochar Total retrievable CO2 2,93 CS 39.168,64 114.764,12 RC 34.999,10 102.547,36 CZ 26.929,21 78.902,59 KR 16.230,48 47.555,31 VV 12.812,52 37.540,68 CALABRIA 130.139,95 381.310,06 Contextually, the CO2 deriving from stubble and farming waste combustion on the regional territory has been calculated in order to make a balance of useful and damaging quantities of carbon (table 6) [5].
It must be taken in order to produce electric power and contribute, in compliance with the goals set by the climate-energy package (20-20-20), to the reduction of greenhouse gas emissions.
Online since: December 2014
Authors: Alexey Anatolevich Vereschaka, Sergey Nikolaevich Grigoriev, Natalia Cherkasova, Pavel Filatov
However, with further increase of nitrogen content in the gas mixture up to 80%, the reduction of microhardness in comparison with the sample part being processed in the 60% nitrogen atmosphere is observed.
In addition, comparing the line charts in Fig. 1b and 3a, it may be noted that with rise of nitriding temperature from 480°C to 510°C the reduction of surface area's microhardness occurred.
a) b) Fig. 6 Measurement data of flank wear rate of broaching tool's teeth after machining of sample parts made of Inconel 718: a) V = 1,5 m/min, f = 0.02 mm/tooth; b) V = 1,5 m/min, f = 0.07 mm/tooth.
In addition, comparing the line charts in Fig. 1b and 3a, it may be noted that with rise of nitriding temperature from 480°C to 510°C the reduction of surface area's microhardness occurred.
a) b) Fig. 6 Measurement data of flank wear rate of broaching tool's teeth after machining of sample parts made of Inconel 718: a) V = 1,5 m/min, f = 0.02 mm/tooth; b) V = 1,5 m/min, f = 0.07 mm/tooth.
Online since: May 2016
Authors: Henry Hu, Mohsen Masoumi, Jun Xiang Zhou
To increase the use of magnesium for further reduction in the weight of vehicles, the next generation of magnesium automotive applications needs to be expanded to elevated temperatures.
The tensile properties were evaluated by tensile testing, which were performed at ambient, on an Instron machine equipped with computer data acquisition system.
The slight increase in yield strength may be attributed to reduction in grain size as the Ca content increase from 0 to 2 wt.
The tensile properties were evaluated by tensile testing, which were performed at ambient, on an Instron machine equipped with computer data acquisition system.
The slight increase in yield strength may be attributed to reduction in grain size as the Ca content increase from 0 to 2 wt.
Online since: August 2014
Authors: Gabriel Gherasim, Florentina Cziple, Valentin Petrescu, György Thalmaier, Niculina Sechel, Ioan Vida-Simiti
Experimental data show that the absorbed energy during compression is influenced mainly by composition, relative density, pores shape and the pore size distribution [3].
In the present work we used a sintering time as short as possible compensating the reduction of the sintering time by the increase of the temperature and strong reduction of the powder size range.
In the present work we used a sintering time as short as possible compensating the reduction of the sintering time by the increase of the temperature and strong reduction of the powder size range.
Online since: December 2024
Authors: Oksana Berdnyk, Valeriy Makarenko, Volodymyr Gots, Yurii Feshchuk, Yurii Otrosh
Such multi-component sandwich panels and, in particular, those containing layers of glass fiber polymer materials, exhibit sufficient stiffness, strength and ability to absorb mechanical energy with a significant reduction in weight and are successfully used in aerospace engineering and the transport industry.
The composite panel manufacturing technology does not require complex technical equipment, so it can be used in serial production conditions, and the use of readily available bases for the composite leads to a cost reduction of up to 10%. 4 Conclusions In the work, samples of composite panels capable of changing the distribution of kinetic energy were developed and the impact of high-speed loading on them was analyzed, a plan for ballistic impact test research was created, influential factors were determined, according to the rank diagram, and the main levels of variation of characteristics that primarily affect the response process.
According to the obtained data, the angle of installation and the approach distance have an effect, but not so critically, because the variation of the depth of penetration is less than 10 mm, depending on the limit values (that is, the impactor in all cases penetrates into the second layer and remains in it).
The composite panel manufacturing technology does not require complex technical equipment, so it can be used in serial production conditions, and the use of readily available bases for the composite leads to a cost reduction of up to 10%. 4 Conclusions In the work, samples of composite panels capable of changing the distribution of kinetic energy were developed and the impact of high-speed loading on them was analyzed, a plan for ballistic impact test research was created, influential factors were determined, according to the rank diagram, and the main levels of variation of characteristics that primarily affect the response process.
According to the obtained data, the angle of installation and the approach distance have an effect, but not so critically, because the variation of the depth of penetration is less than 10 mm, depending on the limit values (that is, the impactor in all cases penetrates into the second layer and remains in it).
Online since: April 2013
Authors: Wei Guang Zhu, Jia Hua Dong, Cheng Kang Gao, Han Mei Tang
At present, the insufficient data and technicians’ unawareness of systematic knowledge limit domestic study and applying on LCA, while other countries have widely applied LCA since its birth.
From above comparison, wind power generation contributes a lot to energy-saving and emission reduction.
In this paper, we apply LCA to quantify assessment results to show the conspicuous effect of energy saving and emission reduction by adopting wind generation and energy consumption in production stage is the principal part of 79.3% throughout the life cycle.
From above comparison, wind power generation contributes a lot to energy-saving and emission reduction.
In this paper, we apply LCA to quantify assessment results to show the conspicuous effect of energy saving and emission reduction by adopting wind generation and energy consumption in production stage is the principal part of 79.3% throughout the life cycle.
Online since: July 2013
Authors: Markus Riihimäki, Tiina M. Pääkkönen, Ulla Ojaniemi, Carey J. Simonson, Esa Muurinen, Riitta L. Keiski
C
B
A
Fig. 1 Surface patterns used in the fouling experiments
Data reduction.
For the surface with patterns, the reduction in tangential pull-off force is included by introducing the radius of the curved part of the pattern into the model.
For the surface with patterns, the reduction in tangential pull-off force is included by introducing the radius of the curved part of the pattern into the model.
Online since: May 2019
Authors: A. Ravichandran, S. Kothandaraman, T.A. Rajha Rajeswaran
The energy savings due to SCC is based on the data ftom a precast concrete pipe manufacturing factory in Belgium [3].
Fig 3 depicts the reduction in pumping presssure as observed for horizontal pumping[5].
This reduction in pumping pressure of 2 bar is equivalent to gaining an additional vertical height of 5 m or gaining an additional output of 0.3 m3/hr.[6] Thus the savings in pumping costs will be very significant even for medium sized concreting works.
Fig 3 depicts the reduction in pumping presssure as observed for horizontal pumping[5].
This reduction in pumping pressure of 2 bar is equivalent to gaining an additional vertical height of 5 m or gaining an additional output of 0.3 m3/hr.[6] Thus the savings in pumping costs will be very significant even for medium sized concreting works.
Online since: February 2016
Authors: Natalya V. Varlamova, Viktor S. Skuridin, Svetlana I. Sazonova, Aleksey E. Sazonov, Evgeniy A. Nesterov, Liudmila A. Larionova
Mostly, such sets are provided with bivalent stannum (SnCl2) for pertechnetate reduction.
The scintigraphic data were processed with the computer-aided system Multiveiwer.
In these terms the way of colloid decrease has turned to be preferred due to reduction of Sn (II) amount in the source reagent composition.
The scintigraphic data were processed with the computer-aided system Multiveiwer.
In these terms the way of colloid decrease has turned to be preferred due to reduction of Sn (II) amount in the source reagent composition.
Online since: August 2015
Authors: Filipe Pereira, Martin Williams
This meant a reduction of 30% in the gate and runner volume, with subsequent reduction in Aluminium used during casting.
All the data for the various models were captured and the best results were compared with the runner system according to Murray’s runner design principles.
All the data for the various models were captured and the best results were compared with the runner system according to Murray’s runner design principles.