MECHANICAL PROPERTIES OF STARCH-BASED FOAMS AS AFFECTED BY INGREDIENT FORMULATIONS AND FOAM PHYSICAL CHARACTERISTICS

2000 ◽  
Vol 43 (6) ◽  
pp. 1715-1723 ◽  
Author(s):  
Q. Fang ◽  
M. A. Hanna
Keyword(s):  
Mechanical Properties ◽  
Physical Characteristics

scholarly journals Nanotechnology in Enhanced Oil Recovery

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1073 ◽  
Author(s):  
Goshtasp Cheraghian ◽  
Sara Rostami ◽  
Masoud Afrand
Keyword(s):  
Mechanical Properties ◽  
Interfacial Tension ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Physical And Mechanical Properties ◽  
Physical Characteristics ◽  
Oil Water ◽  
Very High

Nanoparticles (NPs) are known as important nanomaterials for a broad range of commercial and research applications owing to their physical characteristics and properties. Currently, the demand for NPs for use in enhanced oil recovery (EOR) is very high. The use of NPs can drastically benefit EOR by changing the wettability of the rock, improving the mobility of the oil drop and decreasing the interfacial tension (IFT) between oil/water. This paper focuses on a review of the application of NPs in the flooding process, the effect of NPs on wettability and the IFT. The study also presents a review of several investigations about the most common NPs, their physical and mechanical properties and benefits in EOR.

Test of Physical Mechanical Properties of Gingko，Hickory Nut and their Stalks

2012 ◽  
Vol 479-481 ◽  
pp. 1145-1150
Author(s):  
Xiao Feng Xu ◽  
Wen Bin Yao ◽  
Jiu Hua Xu ◽  
Wei Zhang
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Testing Machine ◽  
Physical Characteristics ◽  
Harvest Time ◽  
Cutting Resistance ◽  
Moisture Contents ◽  
Universal Testing ◽  
The Impact ◽  
Physical Mechanics

In order to get the physical mechanics of gingko，hickory nut and their stalks, microprocessor controlled electronic universal testing machine (WDW-5E) was used to study the basic physical characteristics，pulling resistance and cutting resistance of their stalk in different harvest time and moisture contents. The impact of physical mechanics of cones and stalks on the picking process were analyzed and some concrete suggestions were put forward in the paper. This experimental study provides an important theory basis on designing and manufacturing different cones picking machine.

Comparison of Three Commercial Latex and Non-Latex Orthodontic Elastic Bands

2019 ◽  
Vol 814 ◽  
pp. 354-359
Author(s):  
Sasatorn Malanon ◽  
Surachai Dechkunakorn ◽  
Niwat Anuwongnukroh ◽  
Wassana Wichai
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Physical Characteristics ◽  
Breaking Force ◽  
Cross Sectional ◽  
Force Decay ◽  
Elastic Bands ◽  
Extension Force ◽  
Inner Diameter ◽  
Initial Force

Orthodontic elastic bands are commonly made from natural rubber because they provide high resiliency at a reasonable cost. However, hypersensitivity related to protein present in latex have been reported in some patients which has led to increased usage of non-latex elastic alternatives. Therefore, the assessment of their mechanical properties is of importance. The objective of this study was to compare the physical and mechanical properties of three commercial latex and non-latex type orthodontic elastic bands. Samples of latex and non-latex type orthodontic elastics from manufacturers – AO (6.5oz), MASEL (6.0oz), GAC (6.0oz), with 3/16-inch diameter were selected. Firstly, the physical characteristics (width, cross-sectional thickness, and inner diameter) of the elastic bands were determined, following which their mechanical properties [initial extension force (F0), 24 h-residual force (F24), percentage of force decay, force exerted at 3 times the inner diameter (F3xID) and breaking force] were tested. The data were analyzed with Mann-Whitney U test and multiple comparisons among the groups were done with Kruskal-Wallis Test (p< 0.05). Significant differences were found in the physical characteristics and mechanical properties among each brand and type of elastics. AO elastic bands had significantly low F0 and F24 compared with the others. While the percentage of force decay at 24 h was greatest in AO followed by MASEL and GAC. Non-latex type elastics showed greater force decay than latex type ones, approximately 30-40% and 20-30% of the initial force in non-latex and latex type elastic, respectively. AO elastics showed the highest F3xID and also the lowest breaking force. Overall, non-latex type elastics exhibited lower breaking force compared to latex type ones. Wide variations were observed in the physical and mechanical characteristics among same manufacturer and same elastic type. All commercial brands presented higher F3xID than that stated by the manufacturers. Non-latex type elastics showed greater force decay over 24 h than latex type ones. The differences in the properties between the 2 types of the elastics could be due to the differences in their structure and polymers composition.

Compression strength and other mechanical properties of particleboards induced by density

2020 ◽  
Vol 110 ◽  
pp. 79-91
Author(s):  
Aleksandra Jeżo ◽  
Grzegorz Kowaluk
Keyword(s):  
Mechanical Properties ◽  
Density Profile ◽  
Surface Finish ◽  
Compression Strength ◽  
Modulus Of Elasticity ◽  
Physical Characteristics ◽  
Modulus Of Rupture

Compression strength and other mechanical properties of particleboards induced by density. The aim of the paper was to investigate the contractual compression strength and modulus of elasticity under compression of six types of commercially available particleboards of various thickness, density and surface finish. The basic mechanical and physical characteristics of the tested panels (modulus of elasticity and modulus of rupture during bending, density and density profile) were also performed. The studies showed that the compression strength raises linearly with panels’ density raise, and the modulus of elasticity under compression is linearly opposite, depending on the panels’ density.

scholarly journals Design of sustainable olive mill wastewaters ponds

2014 ◽  
Vol 60 (No. 4) ◽  
pp. 159-164 ◽  
Author(s):  
F. Barreca ◽  
C.R. Fichera
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Physical And Mechanical Properties ◽  
Physical Characteristics ◽  
Elastic Plastic ◽  
Plastic Behaviour ◽  
Olive Mill Wastewaters ◽  
Material Forming ◽  
Climatic Characteristics ◽  
Olive Mill

The geomembrane market for waterproofing ground ponds used to isolate olive mill wastewaters offers a wide choice both in terms of the material used and liner thickness and size. With regard to the physical and mechanical properties of the material forming the geomembrane, this paper proposes a method for the assessment and design of the waterproofing system. This method foresees the calculation and analysis of geomembrane stress caused by the most stressful conditions, also taking into consideration the physical characteristics of the material within the pond, the elastic and elastic-plastic behaviour of the geomembrane and the physical characteristics of the soil. Criteria and graphs for the rapid dimensioning of the waterproofing system are also proposed. In addition to the environmental and climatic characteristics of the site, the results presented also take into consideration the dimensional characteristics of the ponds and the physical properties of the olive mill wastewaters. &nbsp;

Mechanical Properties of Newly Developed Root Canal Sealers Containing Titanium Oxide

2007 ◽  
Vol 361-363 ◽  
pp. 845-848
Author(s):  
Ayami Nakamura ◽  
Harumasa Wanibe ◽  
Akihiro Iwama ◽  
Naritaka Kitamura ◽  
Naoki Shibata ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Catalytic Activity ◽  
Titanium Oxide ◽  
Root Canal ◽  
Physical Characteristics ◽  
Clinical Use ◽  
Root Canal Sealer ◽  
New Material ◽  
Root Canal Sealers

Titanium oxide (TiO2) has lately attracted considerable attention as a new material in dentistry because of its catalytic activity and biocompatibility. In the present study, we developed a novel root canal sealer consisting of TiO2 and evaluated its mechanical properties in vitro. The newly developed root canal sealer containing TiO2 has satisfied the requirement of ISO formulation 6876. Our results suggest that the newly developed root canal sealer has excellent physical characteristics, which may make it suitable for clinical use as a root canal sealer material.

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