Strong interlocking skeleton gradation design and performance evaluation of cement-stabilised crushed gravel via vertical vibration test method

Current instrumental technology in evaluating performance of skin care creams is still rather limited and there are no industrial standard testing equipment, method and performance specifications for it.  In this paper, we report our attempt in using an instrument called PhabrOmeter for this purpose. PhabrOmeter is a commercialized instrument for sensory performance evaluation of textiles, leather, paper and nonwoven and has been designated by American Association of Textile Chemists and Colorists (AATCC) as a standard test method for textiles, AATCC TM 202 in 2013.    By adopting artificial skin samples treated with skin care creams, we have developed a procedure to apply this instrument for evaluation of skin care creams from sample preparation, measurement to data analysis and interpretation. The results using commercial skin care creams to demonstrate the feasibility and advantages of this instrument are provided.

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Organic Polymers Stabilized Crushed Stone Based on Vertical Vibration Test Method Study on the Stability of Basic Level Water

Open Journal of Transportation Technologies ◽

10.12677/ojtt.2017.64021 ◽

2017 ◽

Vol 06 (04) ◽

pp. 159-164

Author(s):

德景石

Keyword(s):

Vertical Vibration ◽

Test Method ◽

Crushed Stone ◽

Vibration Test ◽

Organic Polymers ◽

The Stability ◽

Basic Level

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Effects of Cement Content, Curing Period, Gradation, and Compaction Degree on Mechanical Behavior of Cement-Stabilized Crushed Gravel Produced via Vertical Vibration Test Method

Advances in Civil Engineering ◽

10.1155/2020/3082924 ◽

2020 ◽

Vol 2020 ◽

pp. 1-13

Author(s):

Yingjun Jiang ◽

Tian Tian ◽

Changqing Deng ◽

Kejia Yuan ◽

Yong Yi

Keyword(s):

Mechanical Strength ◽

Cement Content ◽

Prediction Equation ◽

Core Sample ◽

Vertical Vibration ◽

Test Method ◽

Strength Prediction ◽

Vibration Test ◽

Curing Period ◽

Compaction Degree

In this paper, the reliability of vertical vibration test method (VVTM) was evaluated by comparing the changes in moisture content and gradation before and after forming the test piece by VVTM and static pressure method and the mechanical strength correlation between the laboratory compaction sample and the core sample in the field. The effects of cement content, curing period, gradation, and compaction degree on the unconfined compressive strength, splitting strength, and compressive rebound modulus of VVTM-compacted cement-stabilized crushed gravel (CSCG) were studied, and a mechanical strength prediction equation for VVTM-compacted CSCG was formulated. The results show that the correlation between the strength of the VVTM specimen and the field core sample can reach 92%; the mechanical strength of CSCG will increase with increase in the cement content, and when the cement content reaches approximately 4%, the increase in its mechanical strength will slow down; the mechanical strength of VVTM-compacted CSCG with different cement dosages and gradation types increased fast at 14 days of curing period and began to level off after 90 days. Compared with XM gradation, using GM gradation can improve the mechanical strength. Under different gradations and curing periods, the mechanical strength linearly increases with increase in the degree of compaction. The mechanical strength prediction equation has a high reliability; therefore, it can accurately predict the strength growth rules. Moreover, the degree of compaction increases by 1%, and the mechanical strength increases by approximately 10%.

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Formalizing Performance Evaluation of Mobile Manipulator Robots Using CTML

Volume 2B: Advanced Manufacturing ◽

10.1115/imece2020-23234 ◽

2020 ◽

Author(s):

Omar Aboul-Enein ◽

Yaping Jing ◽

Roger Bostelman

Keyword(s):

Performance Evaluation ◽

Performance Measurement ◽

Product Life Cycle ◽

Life Cycle Management ◽

Model Verification ◽

Test Method ◽

Mobile Manipulator ◽

Mobile Manipulators ◽

Robot Tasks ◽

And Performance

Abstract Computation Tree Measurement Language (CTML) is a newly developed formal language that offers simultaneous model verification and performance evaluation measures. While the theory behind CTML has been established, the language has yet to be tested on a practical example. In this work, we wish to demonstrate the utility of CTML when applied to a real-world application based in manufacturing. Mobile manipulators may enable more flexible, dynamic workflows within industry. Therefore, an artifact-based performance measurement test method for mobile manipulator robots developed at the National Institute of Standards and Technology was selected for evaluation. Contributions of this work include the modeling of robot tasks implemented for the performance measurement test using Petri nets, as well as the formulation and execution of sample queries using CTML. To compare the numerical results, query support, ease of implementation, and empirical runtime of CTML to other temporal logics in such applications, the queries were re-formulated and evaluated using the PRISM Model Checker. Finally, a discussion is included that considers future extensions of this work, relative to other existing research, that could potentially enable the integration of CTML with Systems Modeling Language (SysML) and Product Life-cycle Management (PLM) software solutions.

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