A New Type of Sieve Shaker: The Meinzer II, A Comparative Study with Rotap Technology

2003 ◽  
Keyword(s):  
Comparative Study ◽  
New Type

Comparative study on the hydrodynamics and mixing characteristics of a new-type particle mixer

2018 ◽  
Vol 332 ◽  
pp. 90-105 ◽  
Author(s):  
Zhenliang Meng ◽  
Mengxi Liu ◽  
Junming Xie ◽  
Wei Wang ◽  
Chunxi Lu
Keyword(s):  
Comparative Study ◽  
Mixing Characteristics ◽  
New Type ◽  
Type Particle

The Design and Application of a New Type of Instrument for Testing the Worn Surface of Casing Wear

2008 ◽  
Author(s):  
Jianchun Fan ◽  
Qiang Chen ◽  
Laibin Zhang ◽  
Dong Wen
Keyword(s):  
Comparative Study ◽  
Surface Reconstruction ◽  
Wear Mechanism ◽  
3D Surface Reconstruction ◽  
3D Surface ◽  
Testing Data ◽  
New Type ◽  
Casing Wear ◽  
The Comparative Study ◽  
Worn Surface

In this paper, a new kind of instrument used specially for testing the worn surface of casing was introduced, its structure and testing principle was further elaborated. Meanwhile, the testing data were also used for the 3D surface reconstruction of the worn area of casing. The comparative study with SEM pictures could tell that the instrument performed very well and is quite helpful in the observation of worn rejoin of casing; the conclusions drawn from the study could be applied in the research of wear mechanism.

Comparative Study on Mechanical Properties of Jutecell, Cotton and Bamboo Fiber Knitted Fabrics 20

2012 ◽  
Vol 627 ◽  
pp. 33-36
Author(s):  
Li Na Chen ◽  
Fan Rong Kong ◽  
Rui Chao Xu
Keyword(s):  
Mechanical Properties ◽  
Comparative Study ◽  
Production Process ◽  
Bamboo Fiber ◽  
Cotton Fibre ◽  
Flax Fiber ◽  
Knitted Fabrics ◽  
New Type ◽  
Comparison And Analysis ◽  
Better Than

In order to have a better understanding and using of the new type of regenerated flax fiber –Jutecell, Mechanical properties of three kinds of fabrics which knitted by Jutecell, cotton and bamboo fiber were tested, focusing on the stretching, bursting, abrasion-resistant and anti-pilling properties, through the comparison and analysis of the three kinds of fabrics, the results shown that: The strength of Jutecell fabric is the best, followed by regenerated bamboo fiber, natural cotton fibre is the worst. The stretching, bursting and abrasion-resistant of the fabrics knitted by Jutecell yarn are all better than that of the cotton and bamboo fiber knitted fabrics; but its anti-pilling performance is poor, a appropriate measure must be taken in the production process to reduce the pilling phenomenon of clothes made by Jutecell yarns.

New type of hand-held corer for meiofaunal sampling and vertical profile investigation: a comparative study

2000 ◽  
Vol 80 (1) ◽  
pp. 171-172 ◽  
Author(s):  
G. Tita ◽  
G. Desrosiers ◽  
M. Vincx
Keyword(s):  
Comparative Study ◽  
Sediment Core ◽  
Vertical Profile ◽  
Vertical Profiles ◽  
New Type

A new hand-held corer for meiofaunal sampling and vertical profile investigation was developed. Its design and use prevents problems connected with core compression caused by the use of a plunger for core extrusion as generally applied in common coring techniques. This represents an advantage when meiofauna vertical profiles are investigated. A comparison between vertical profiles obtained from the newly developed corer and from commonly used corers shows that non-extrusive techniques significantly reduce sediment core compression.

scholarly journals A comparative study on virology, epidemiology, and clinical features of SARS and COVID-19

2021 ◽  
pp. 1-23
Author(s):  
Yanmei Zhao ◽  
Qianying Lu ◽  
Xiangyan Meng ◽  
Siyu Huang ◽  
Jianfeng Zhang ◽  
...  
Keyword(s):  
Severe Acute Respiratory Syndrome ◽  
Comparative Study ◽  
Clinical Features ◽  
Human Coronavirus ◽  
Highly Pathogenic ◽  
New Type ◽  
Human Coronaviruses ◽  
Novel Coronavirus ◽  
And Control ◽  
Monitor And Control

Abstract In December 2019, an outbreak of an unknown cause of pneumonia [later named coronavirus disease 2019 (COVID-19)] occurred in Wuhan, China. This was found to be attributed to a novel coronavirus of zoonotic origin, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2; previously named 2019 novel coronavirus or 2019-nCoV). The SARS-CoV-2, a new type of highly pathogenic human coronavirus related to severe acute respiratory syndrome coronavirus (SARS-CoV), spread rapidly worldwide and caused 53,164,803 confirmed infections, including 1,300,576 deaths, by November 13, 2020 (globally, 206,196,367 cases and 4,345,424 deaths as of August 13, 2021). SARS-CoV-2 and SARS-CoV vary in their specific characteristics, regarding epidemics and pathogenesis. This article focuses on the comparison of the virology, epidemiology, and clinical features of SARS-CoV and SARS-CoV-2 to reveal their common and distinct properties, to provide an up-to-date resource for the development of advanced systems and strategies to monitor and control future epidemics of highly pathogenic human coronaviruses.

Comparative Study of Optimization Techniques in Sizing Mesostructures for Use in NonPneumatic Tires

2015 ◽  
Vol 15 (4) ◽  
Author(s):  
Prabhu Shankar ◽  
Mohammad Fazelpour ◽  
Joshua D. Summers
Keyword(s):  
Comparative Study ◽  
Distribution Pattern ◽  
Design Method ◽  
Optimization Techniques ◽  
Systematic Design ◽  
Surface Method ◽  
Shear Beam ◽  
New Type ◽  
Design Requirements ◽  
The One

This paper presents a comparative study on the size optimization of four mesostructures to meet the design requirements for a nonpneumatic tire's (NPT) shear beam with 10% shear flexure (SF) at 10 MPa effective shear modulus. The need for such comparison is motivated from the previous research wherein a systematic design method is proposed to design a mesostructure with high SF by studying the strain energy distribution pattern in honeycomb, auxetic, and sinusoidal auxetic mesostructure. Based upon the distribution pattern, a new type of mesostructure termed S-type is invented. Although it exhibited higher SF than the other mesostructures for a comparable set of geometry, it is not possible to validate the design method without exploring the complete design space of both existing and newly invented mesostructures. In order to address this limitation, these four mesostructures are optimized using the following optimization algorithms: (i) particle swarm; (ii) genetic algorithm (GA); and (iii) FAST–SIMPLEX (using response surface method). The results show the S-type mesostructure can be configured to meet the design requirements, thereby validating the design method presented in previous research. Additionally, it is also observed that auxetic mesostructure is only 5% less than the required design target, which presents an opportunity in future, to develop an alternate design method to maximize SF other than the one that is being validated in this paper.

A New Evaluation Criterion of Minibus Compartment Thermal Comfort Based on the CFD

2013 ◽  
Vol 318 ◽  
pp. 114-119
Author(s):  
Tao Chen ◽  
Mu Sheng Huang ◽  
Kai Song
Keyword(s):  
Comparative Study ◽  
Thermal Comfort ◽  
Indoor Air ◽  
Thermal Environment ◽  
Evaluation Criteria ◽  
Evaluation Criterion ◽  
Comfort Evaluation ◽  
New Type ◽  
The Common

This article mainly puts forward a new type of criteria named ACS-DR that can rapidly to have an evaluation of compartment thermal comfort, which is based on the research of the international indoor air thermal comfort evaluation criteria of buildings. Using the common advanced fluid software STAR CCM+ to have a comparative study between the ACS-DR criterion and the PMV-PPD criterion, for the PMV-PPD criterion is widely used in the vehicle. The result of this study shows that ACS-DR criterion can be good meet with minibus cabin thermal environment comfort evaluation requirement, moreover, the ACS-DR criterion is more convenient and quick than the PMV-PPD criterion in the same condition environment. This can provide an advantage for engineers, while engaging in automobile development.

scholarly journals Urethane-Acrylate/Aramid Nanocomposites Based on Graphenic Materials. A Comparative Study of Their Mechanical Properties

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2388
Author(s):  
Israel Gago ◽  
Manuel del Río ◽  
Gerardo León ◽  
Beatriz Miguel
Keyword(s):  
Mechanical Properties ◽  
Comparative Study ◽  
High Performance ◽  
Strength Properties ◽  
Urethane Acrylate ◽  
Thermoset Resins ◽  
Research Fields ◽  
Reduced Graphene ◽  
New Type ◽  
Few Layer Graphene

Urethane-acrylate thermoset resins (UATR) are a new type of polymeric matrix that have recently made a strong breakthrough in the composites sector. This is because of their properties, which make them an advantageous alternative to epoxy resins, especially if they are reinforced with high-performance fibers such as aramids. Graphene-based nanocomposites are one of the most dynamic research fields in nanotechnology, because graphenic materials greatly improve the properties of traditional composites. This work represents a comparative study of the effect of adding three types of graphenic materials on the mechanical properties of UATR/aramid composites. Several UATR polymeric matrices were doped at 2% w/w with graphene nanoplatelets (GNPs), reduced graphene oxide (rGO) and pristine few-layer graphene (FLG), and reinforced with Twaron CT709 para-aramid fibers. The obtained laminates showed low density (1.38 g·cm−3), a high volumetric fiber–resin ratio (80:20), homogeneous dispersion of the nanoreinforcement, high reproducibility, and easy scalability. The tensile, flexural and impact strength properties of the undoped composite and the graphene-doped nanocomposites were determined. FLG-doped nanocomposites showed the highest increase in all the mentioned mechanical properties and attained a very significant relative improvement over the undoped laminate (up to 134.4% in aCU).

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