A new analytical-empirical model for the instantaneous diffuse radiation and experimental investigation of its validity

1997 ◽  
Vol 11 (3) ◽  
pp. 341-350 ◽  
Author(s):  
N. Nijegorodov ◽  
J.A. Adedoyin ◽  
K.R.S. Devan
Keyword(s):  
Experimental Investigation ◽  
Empirical Model ◽  
Diffuse Radiation

Theoretical and Empiriical Modeling of the Rheology of Fresh Cement Pastes

1992 ◽  
Vol 289 ◽  
Author(s):  
Gebran N. Karam
Keyword(s):  
Experimental Investigation ◽  
Rheological Properties ◽  
Empirical Model ◽  
General Framework ◽  
Theoretical Modeling ◽  
Empirical Modeling ◽  
Rheological Characteristics ◽  
Concentrated Suspensions ◽  
Cement Pastes ◽  
Semi Empirical

AbstractThe most important property of cements and concretes after strength is the workability, which is controlled by the rheological characteristics of the mix. Theoretical modeling having proved complicated and in some cases mathematically untractable, cement specialists have concentrated on empirical based models for the last two decades. The major theoretical contributions to date on the properties of colloidal and concentrated suspensions are summarized and a general framework for theoretical modeling of cement viscosity is established. The empirical modeling and the experimental investigation of the rheological properties of fresh cements are reviewed and discussed. A semi-empirical model is proposed and its validity tested in the interpretation of some published experimental results.

Material Removal Rate of Zirconia in Electro Discharge Micromachining

2015 ◽  
Vol 1115 ◽  
pp. 20-23
Author(s):  
Banu Asfana ◽  
Mohammad Yeakub Ali ◽  
Abdul Rahman Mohamed ◽  
Wayne N.P. Hung
Keyword(s):  
Experimental Investigation ◽  
Material Removal Rate ◽  
Empirical Model ◽  
Rotational Speed ◽  
Material Removal ◽  
Removal Rate ◽  
Micro Edm ◽  
Tungsten Electrode ◽  
Design Expert ◽  
Optimum Parameters

This paper investigates the material removal rate (MRR) in electro discharge micromachining (micro-EDM) of zirconia. Experimental investigation is carried out with 800 μm diameter tungsten electrode with two varying parameters rotational speed and gap voltage. The MRR data are analyzed and an empirical model is developed using Design Expert software. The optimum parameters for maximum MRR are found to be 375 rpm rotational speed and 80 V gap voltage.

Effects of mixture ingredients on extrudability of concrete in Contour Crafting

2018 ◽  
Vol 24 (4) ◽  
pp. 722-730 ◽  
Author(s):  
Babak Zareiyan ◽  
Behrokh Khoshnevis
Keyword(s):  
Experimental Investigation ◽  
Empirical Model ◽  
Design Methodology ◽  
Construction Process ◽  
Shape Stability ◽  
Content Type ◽  
Contour Crafting ◽  
Concrete Mixtures ◽  
Significant Factors

Purpose This paper aims to investigate the extrudability (flow-ability and shape-stability) of concrete mixtures by using contour crafting (CC) as an automated construction process. Design/methodology/approach Several experiments have been performed for flow-ability and shape-stability of concrete mixtures. Experimental results were compared to understand significant factors and their interactions. After developing the empirical model for flow-ability, the model was validated. Findings The experimental investigation of varied combination of concrete components developed a mixture within constrains of the CC nozzle and improved the quality of the extruded part. Originality/value Several experimental samples were fabricated using CC, and the derived empirical model was validated after more than 700 h of work.

Do moods and expectancies have unique or interactive effects?: An experimental investigation

2014 ◽  
Author(s):  
Shane Close ◽  
Victoria Adkins ◽  
Kandice Perry ◽  
Katheryn Eckles ◽  
Jill Brown ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Interactive Effects

Visually-induced motion sickness: An experimental investigation

2004 ◽  
Author(s):  
Mustapha Mouloua ◽  
Janan Smither ◽  
Robert C. Kennedy ◽  
Robert S. Kenned ◽  
Dan Compton ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Motion Sickness ◽  
Visually Induced Motion Sickness ◽  
Induced Motion

No Strings Attached: An Experimental Investigation of Attachment and Hooking-Up

2013 ◽  
Author(s):  
Sarah Edwards ◽  
Lindsey Brinker ◽  
Kathryn A. Bradshaw ◽  
Jennifer A. Munch ◽  
Rachel E. Brenner
Keyword(s):  
Experimental Investigation ◽  
Hooking Up
Sign in / Sign up

Export Citation Format

Share Document