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  • Influence of MBBR carriers’ geometry on its flow ...

    The geometry of MBBR carrier, cross-section of the MBBR carrier and the exemplary geometry with boundary conditions are presented at Fig. 1 and Fig. 2. Simulations were performed with 3 different inlet velocities and 7 different angles of inclination of the carrier θ to check its influence on the velocity field.

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  • Understanding the Influence of Screw Geometry on Melting ...

    F={V bx r m [K m (T b-T m)+( µ2 V j 2)] 2[C s (T m-T s)+l] } 0.5 . Simplified, this equation is the square root of the heat required for melting divided by the heat supplied by the screw rotation. Notice that there are no screw geometry terms showing in this equation; most of the terms are related to the polymer properties or the barrel temperature.

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  • Optimization designation of static mixer geometry ...

    The polymer materials used in the injection molding process have a non-Newtonian characteristic. Consequently, a flow imbalance problem often occurs, even if an H-type runner system is employed. This problem can be addressed by placing a static mixer in the runner. However, the performance of the mixer is highly dependent on its design. Accordingly, the present study employs the Taguchi design ...

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  • Influence of the dosing and mixing technology on the ...

    Influence of the mixing system. Static mixing systems, which are shown in Fig. 4, were used to examine the influence of mixer geometry and the number of mixing elements on the adhesive properties. The spiral mixer consists of 24 spirals twisted by 180 ° and joined rotated by 90 °, respectively.

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  • Evaluation of Diesel Spray with Non-Circular Nozzle - Part ...

    The influence of nozzle geometry on spray and combustion of diesel continues to be a topic of great research interest. An alternate approach impacting spray quality is investigated in this paper, specifically the impact of non-circular nozzles. The concept was explored experimentally in an optically accessible constant-volume combustion chamber ...

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  • Mixing Quality Improvement of a Coaxial Syngas Mixer by ...

    A coaxial gas mixer is designed for mixing air and synthesis gas or syngas as fuel. Three-dimensional computational models are harnessed to analyze and predict the influence of the mechanical tabs aspect ratio and number on the mixing characteristics and performance of the gas mixer. Attention is concentrated on the influence of mechanical tabs on the air-fuel ratio, pressure loss and mixing ...

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  • Flow physics and mixing quality in a confined impinging ...

    In this study, the flow pattern, turbulence characteristics, mixing quality, and residence time of a confined impinging jet mixer (CIJM) have been investigated via direct numerical simulations. To study the effects of the scale, three Reynolds numbers of 200, 600, and 1000 are examined.

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  • An Investigation on the Influence of Main Vacuum and ...

    An Investigation on the Influence of Main Vacuum and Additional Suction Pressure on the Quality of Rotor Yarn Md Tanvir Hossen* 1, Amit Chakrabortty 2, Md Redwanul Islam 2 and Asif Hossain 3 1Department of Textile Engineering, Jashore University of Science and Technology, Bangladesh 2Department of Textile Engineering, Ahsanullah University of Science and Technology,

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  • Numerical Simulation of Mixing Characteristics in the ...

    Numerical simulation was performed with the computational fluid dynamics analysis software POLYFLOW to investigate the influence of different process conditions and structural parameters on mixing characteristics of the eccentric rotor extruder. The intensity of shear and elongational flow strengthened when the rotational speed increased, but the time for material to stay in the extruder will ...

    Get Price
  • Effects of dough mixing time before adding konjac ...

    In this study, effects of 5% konjac glucomannan (KGM) blended with low-protein flour at different dough mixing duration on the properties of dough and noodles were investigated. To prepare the KGM noodle samples, 5% KGM was added after low-protein flour mixed with water for 0, 2 and 4 min, respectively. The three samples above were defined as T0 KGM, T2 KGM and T4 KGM noodle samples ...

    Get Price
  • Influence of MBBR carriers’ geometry on its flow ...

    The geometry of MBBR carrier, cross-section of the MBBR carrier and the exemplary geometry with boundary conditions are presented at Fig. 1 and Fig. 2. Simulations were performed with 3 different inlet velocities and 7 different angles of inclination of the carrier θ to check its influence on the velocity field.

    Get Price
  • Understanding the Influence of Screw Geometry on Melting ...

    F={V bx r m [K m (T b-T m)+( µ2 V j 2)] 2[C s (T m-T s)+l] } 0.5 . Simplified, this equation is the square root of the heat required for melting divided by the heat supplied by the screw rotation. Notice that there are no screw geometry terms showing in this equation; most of the terms are related to the polymer properties or the barrel temperature.

    Get Price
  • Optimization designation of static mixer geometry ...

    The polymer materials used in the injection molding process have a non-Newtonian characteristic. Consequently, a flow imbalance problem often occurs, even if an H-type runner system is employed. This problem can be addressed by placing a static mixer in the runner. However, the performance of the mixer is highly dependent on its design. Accordingly, the present study employs the Taguchi design ...

    Get Price
  • Influence of the dosing and mixing technology on the ...

    Influence of the mixing system. Static mixing systems, which are shown in Fig. 4, were used to examine the influence of mixer geometry and the number of mixing elements on the adhesive properties. The spiral mixer consists of 24 spirals twisted by 180 ° and joined rotated by 90 °, respectively.

    Get Price
  • Evaluation of Diesel Spray with Non-Circular Nozzle - Part ...

    The influence of nozzle geometry on spray and combustion of diesel continues to be a topic of great research interest. An alternate approach impacting spray quality is investigated in this paper, specifically the impact of non-circular nozzles. The concept was explored experimentally in an optically accessible constant-volume combustion chamber ...

    Get Price
  • Mixing Quality Improvement of a Coaxial Syngas Mixer by ...

    A coaxial gas mixer is designed for mixing air and synthesis gas or syngas as fuel. Three-dimensional computational models are harnessed to analyze and predict the influence of the mechanical tabs aspect ratio and number on the mixing characteristics and performance of the gas mixer. Attention is concentrated on the influence of mechanical tabs on the air-fuel ratio, pressure loss and mixing ...

    Get Price
  • Flow physics and mixing quality in a confined impinging ...

    In this study, the flow pattern, turbulence characteristics, mixing quality, and residence time of a confined impinging jet mixer (CIJM) have been investigated via direct numerical simulations. To study the effects of the scale, three Reynolds numbers of 200, 600, and 1000 are examined.

    Get Price
  • An Investigation on the Influence of Main Vacuum and ...

    An Investigation on the Influence of Main Vacuum and Additional Suction Pressure on the Quality of Rotor Yarn Md Tanvir Hossen* 1, Amit Chakrabortty 2, Md Redwanul Islam 2 and Asif Hossain 3 1Department of Textile Engineering, Jashore University of Science and Technology, Bangladesh 2Department of Textile Engineering, Ahsanullah University of Science and Technology,

    Get Price
  • Numerical Simulation of Mixing Characteristics in the ...

    Numerical simulation was performed with the computational fluid dynamics analysis software POLYFLOW to investigate the influence of different process conditions and structural parameters on mixing characteristics of the eccentric rotor extruder. The intensity of shear and elongational flow strengthened when the rotational speed increased, but the time for material to stay in the extruder will ...

    Get Price
  • Effects of dough mixing time before adding konjac ...

    In this study, effects of 5% konjac glucomannan (KGM) blended with low-protein flour at different dough mixing duration on the properties of dough and noodles were investigated. To prepare the KGM noodle samples, 5% KGM was added after low-protein flour mixed with water for 0, 2 and 4 min, respectively. The three samples above were defined as T0 KGM, T2 KGM and T4 KGM noodle samples ...

    Get Price
  • Concrete Mixing Methods and Concrete Mixers: State of the Art

    Ultimately, the quality of the concrete produced determines its performance after placement. An important measure of the quality is the homogeneity of the material after mixing. This paper will review mixing methods in regards to the quality of the concrete produced. Some procedures used to determine the effectiveness of the mixing will be ...

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  • Application of Box Behnken design to optimize the ...

    surface roughness is the result of the geometry of the tool and the feed and natural roughness is caused by the irregularities in the machining operation. ... applied in situations where several input variables potentially influence a performance measure or quality …

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  • Influence of Rubber Pre-Processing on the Rheological ...

    Mixing time [min] Reaction time [min] A SBS 2.5 180 900 10 30 B SBS 0.7 Crumb-rubber 10.0 160 1200 10 30 C SBS 1.0 160 900 10 30 D SBS 5.0 160 1400 10 30 E SBS 2.5 160 1400 20 30 F SBS 2.5 Crumb-rubber 10.0 160 900 10 30 G SBS 0.7 Kneaded c-NR 5.0 180 1200 120+10 30 with geometry of 25 mm and a gap of of 1.0 mm for neat bitumen and 1.2 mm for ...

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  • Air-Fuel Mixing in a Homogeneous Charge DI Gasoline Engine

    Air-Fuel Mixing in a Homogeneous Charge DI Gasoline Engine. 2001-01-0968. For optimum efficiency, the direct injection (DI) gasoline engine requires two operating modes to cover the full load/speed map. For lower loads and speeds, stratified charge operation can be used, while homogeneous charge is required for high loads and speeds.

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  • Stewardship of global collective behavior

    Collective behavior provides a framework for understanding how the actions and properties of groups emerge from the way individuals generate and share information. In humans, information flows were initially shaped by natural selection yet are increasingly structured by emerging communication technologies. Our larger, more complex social networks now transfer high-fidelity information over ...

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  • HAAKE PolyLab QC - Thermo Fisher Scientific

    Consistent quality is basic to the industry. Consequently, simplified quality control procedures that can be done within an increasingly shorter period of time are highly demanded by innovative and successful companies. The Thermo Scientific HAAKE PolyLab QC is a new measuring mixer & extruder system that meets today’s – and

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  • Quality cell therapy manufacturing by design

    Critical quality attribute. Properties that ensure product quality. Critical process parameter. Variable elements of the production process that influence critical quality attributes. Material ...

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  • Influence of Synoptic Sea-Breeze Fronts on the Urban Heat ...

    Allen, C. J. T., , and R. Washington, 2014: The low-level jet dust emission mechanism in the central Sahara: Observations from Bordj-Badji Mokhtar during the June ...

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  • ECCC and ESTAD 2017 - Vesuvius

    ECCC and ESTAD 2017. The 9th ECCC (European Continuous Casting Conference) and the 3rd ESTAD (European Steel Technology and Application Days) will take place in Vienna from June 26 to June 29, 2017…

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  • Answered: Principles of ‘Smart Growth’” include

    The “Ten Principles of ‘Smart Growth’” include all of the following EXCEPT: Create a range of housing opportunities and choices. Mixing land uses. Provide a variety of transportation choices. Transplanting communities from endangered tropical rainforest regions to urban settings. check_circle.

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  • High quality three-dimensional aluminum microwave cavities ...

    Here, we examine how different grades of aluminum, cavity height, cavity frequency, and three different treatments influence the internal quality factor of the stub-geometry cavity. We find that by etching and annealing the cavities, their internal quality factor reproducibly exceeds 80 × 10 6 .

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  • QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY

    Hide abstract. Welding is an important joining technology for dissimilar materials, such as metals and polymers. However, the joint strength of the welded structure and the mechanical behavior of the polymer change significantly owing to the thermal history of the polymer during the welding process. In this study, polyamide 6 (PA6) plates were ...

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  • (PDF) The Effectiveness of Deep Soil Mixing on Enhanced ...

    2. Deep Soil Mixing Definition The DSM method is a ground modification technique that improves the quality of soil by in situ stabilization of soft soil [6]. The more frequently is applied for stabilization of the soil to a minimum depth of 3m and is currently limited to treatment depth of about 50m [9].

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  • Foods

    Vacuum freeze-drying of biological materials is one of the best methods of water removal, with final products of highest quality. The solid state of water during freeze-drying protects the primary structure and the shape of the products with minimal volume reduction. In addition, the lower temperatures in the process allow maximal nutrient and bioactive compound retention.

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  • Process characterization strategy for a precipitation step ...

    Temperature was excluded from Step 2 characterization study as its influence on product quality was minimal. Although hold time also had minimal impact on product quality, it was included in Step 2 due to the identified potential impact to process performance, as described in the risk assessment (Table 1). 4.3.2 Step 2—process performance

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  • Influence of Synoptic Sea-Breeze Fronts on the Urban Heat ...

    Allen, C. J. T., , and R. Washington, 2014: The low-level jet dust emission mechanism in the central Sahara: Observations from Bordj-Badji Mokhtar during the June ...

    Get Price
  • ECCC and ESTAD 2017 - Vesuvius

    ECCC and ESTAD 2017. The 9th ECCC (European Continuous Casting Conference) and the 3rd ESTAD (European Steel Technology and Application Days) will take place in Vienna from June 26 to June 29, 2017…

    Get Price
  • Picture Quality Analysis System

    Picture Quality Analysis System. The PQA600 is the latest-generation Picture Quality Analyzer built on the Emmy Award winning Tektronix PQA200/300. Based on the concepts of the human vision system, the PQA600 provides a suite of repeatable, objective quality measurements that closely correspond with subjective human visual assessment.

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  • Answered: Principles of ‘Smart Growth’” include

    The “Ten Principles of ‘Smart Growth’” include all of the following EXCEPT: Create a range of housing opportunities and choices. Mixing land uses. Provide a variety of transportation choices. Transplanting communities from endangered tropical rainforest regions to urban settings. check_circle.

    Get Price