Results 21 to 30 of about 14,668,943 (246)

Reduction of refining energy during mechanical pulping [PDF]

open access: yes, 2011
The effects of pressurised compressive chip pre-treatment and low dosage sulphite pre-treatment were evaluated for production of thermomechanical pulp in mill scale trials using Norway spruce (Picea abies) at the Braviken paper mill (Holmen Paper AB ...
Nelsson, Erik
core   +1 more source

Design of a Pendulum Prototype for Dynamic Testing of Material Removal Using Picks

open access: yesEnergies, 2021
The need for large and fast excavations, together with noise and vibration limitations, means that mechanical removal is increasingly used rather than blasting.
María-Belén Prendes-Gero   +3 more
doaj   +1 more source

Technology of Rock Destruction by Combined Explosion-Mechanical Load [PDF]

open access: yesНаукові вісті Національного технічного університету України "Київський політехнічний інститут", 2017
Background. Rock drilling is characterized by an energy capacity of more than 120 kWh/m3. This is due to the fact that about 90 % of the energy is expended on the “preparation” of rocks for destruction.
Oleg M. Terentiev, Pavlo V. Gontar
doaj   +1 more source

Energy Modeling of a Solar Dish/Stirling by Artificial Intelligence Approach

open access: yes, 2021
Solar energy is a renewable energy resources that is available across the world. A solar dish/Stirling system means a parabolic dish concentrator and a Stirling engine combined to generate mechanical and/or electrical output power.
H. Barrientos, Miguel   +5 more
core   +1 more source

Influence of carbon black trimodal mixture on LDPE films properties: Part3 – Fillers [PDF]

open access: yesPolímeros
Previous studies in this journal reported a two-part investigation on carbon black (CB) dispersions in LDPE films. In PART01, trimodal CB mixtures were evaluated using a Design of Experiments (DOE) to assess colorimetric and rheological properties ...
Juliano Martins Barbosa   +2 more
doaj   +2 more sources

Advanced energy-saving optimization strategy in thermo-mechanical pulping by machine learning approach

open access: yes, 2023
Thermo-mechanical Pulping (TMP) is one of the most energy-intensive industries where most of the electrical energy is consumed in the refining process.
Vakkilainen, E.   +4 more
core   +1 more source

Physicochemical and sensory characterization of an extruded product from blue maize meal and orange bagasse using the response surface methodology

open access: yesCyTA - Journal of Food, 2018
The mixtures of blue cornmeal and orange bagasse were processed in a single screw laboratory extruder. We used an experimental design, central composite rotatable, where the factors were as follows: extruder die temperature (153–187°C), feed moisture ...
Ricardo O. Navarro-Cortez   +6 more
doaj   +1 more source

In-line Measurement of the Viscous Behaviour of Wheat Starch During Extrusion. Application to Starch Cationisation

open access: yesApplied Rheology, 2007
A specific twin channel slit die was used to measure in-line the viscous behaviour of an extruded wheat starch. This allows to put in evidence the influences of temperature, water content and specific mechanical energy (SME). The proposed rheological law
Berzin F., Tara A., Tighzert L.
doaj   +1 more source

Research on Interdependence between Specific Rock Cutting Energy and Specific Drilling Energy

open access: yesApplied Sciences, 2023
A method based on extensive laboratory and field measurements was developed to determine the dependence of specific rock cutting energy (SEc) on specific drilling energy (SEd) for machines with different operating and design characteristics and similar ...
Davor Antoljak   +3 more
doaj   +1 more source

Investigation of selected independent variables on extrusion of rice semolina with and without propeller [PDF]

open access: yesBIO Web of Conferences, 2023
The influence of screws with and without propeller, as well as the independent variables of material moisture content, working screw speed, feeding screw speed and die temperature on the changes of some physical and mechanical properties during singles ...
Chalamov Yanush   +3 more
doaj   +1 more source

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