scholarly journals A critical analysis of research methods and experimental models to study the physical properties of NiTi instruments and their fracture characteristics

2021 ◽  
Author(s):  
Edgar Schäfer ◽  
Sebastian Bürklein ◽  
David Donnermeyer
Keyword(s):  
Physical Properties ◽  
Research Methods ◽  
Critical Analysis ◽  
Experimental Models ◽  
Fracture Characteristics ◽  
Niti Instruments

scholarly journals A critical analysis of research methods and experimental models to study pulpitis

2022 ◽  
Author(s):  
Raphaël Richert ◽  
Maxime Ducret ◽  
Brigitte Alliot‐Licht ◽  
Mourad Bekhouche ◽  
Stéphanie Gobert ◽  
...  
Keyword(s):  
Research Methods ◽  
Critical Analysis ◽  
Experimental Models

scholarly journals The ash heap of crystallography: restoring forgotten basic knowledge

2015 ◽  
Vol 48 (4) ◽  
pp. 1290-1298 ◽  
Author(s):  
Massimo Nespolo
Keyword(s):  
Physical Properties ◽  
Critical Analysis ◽  
Unit Cell ◽  
Basic Knowledge ◽  
Crystal Forms ◽  
Structural Symmetry

A critical analysis of some basic notions often overlooked in crystallographic education is presented to correct some common oversights occurring both in the literature and in textbooks. The crystal forms (face forms), defined in terms of their geometric eigensymmetry, are 47 in number, not 48 as often found in the literature. The split of the dihedron into dome and sphenoid calls for the consideration of the physical properties of the faces building a form; in that case, however, the same criterion should be used for all forms. By taking the handedness of the faces as representative of the physical properties of the faces, the occurrence of 130 crystallographic face forms (97 affine face forms and 33 enantiomorphic pairs) is demonstrated. Next, the correct use of non-coprime Miller indices when a centred unit cell is adopted is shown, and the inconsistent multiplication of Miller indices in the Bravais–Friedel–Donnay–Harker law is pointed out. A geometric derivation of the reflection conditions is reviewed. Finally, the inconsistent presentation of metric restrictions imposed by the structural symmetry is pointed out and corrected.

scholarly journals A Critical Analysis of Legal Aid in Bangladesh

2014 ◽  
Vol 2 (1) ◽  
pp. 139
Author(s):  
Md. Nannu Mian ◽  
Md. Mamunur Rashid
Keyword(s):  
Financial Crisis ◽  
Research Methods ◽  
Critical Analysis ◽  
Poverty Line ◽  
Legal Rights ◽  
Legal Knowledge ◽  
Legal Aid ◽  
The Poor ◽  
Analytical Research ◽  
The Government

Legal aid is essentially a mechanism that enables the poor and the vulnerable sectors of the society to be able to enforce their legal rights in order to access a fair and equitable justice in the society. Nowadays, a legal aid can be justifiably said as a crying need to ensure social and legal justice in Bangladesh because most of the citizens are illiterate and they live below the poverty line which incidentally makes matters worse. Due to their financial crisis or lack of legal knowledge they are often precluded to access justice. In recognizing the legal aid as a right, the government has enacted some laws. However, unfortunately those laws are full of weaknesses, loopholes, and procedural complexities which have to be judiciously addressed in the proper legal perspectives. As a matter of fact, legally speaking, much has been said and done, but ironically not much has been practiced. Due to these ever unsettling defects, the ultimate objectives of those laws have frequently failed to ensure enjoyment of the legal aid services among the vulnerable sectors of the society. In this research, an attempt has been made to analyze and find out numerous legal the gaps, loopholes and complexities of the existing laws relating to legal aid services in Bangladesh and frame out a comprehensive solution for ensuring the aid program by adopting the qualitative and the analytical research methods.

scholarly journals The Experience of Non-Stationary Flow Visualization Using the Hydrogen Bubble Method

2019 ◽  
pp. 60-70
Author(s):  
S.M. Krivel ◽  
I.O. Bobarika
Keyword(s):  
Research Methods ◽  
Gas Flow ◽  
Stationary Flow ◽  
Experimental Models ◽  
Experimental Equipment ◽  
Incident Flow ◽  
Kinematic Parameters ◽  
Physical Processes ◽  
Hydrogen Bubbles ◽  
Design Construction

The study of the spectra of flow is carried out by experimental methods. The paper summarizes the authors’ experience in the design, construction and use of hydrodynamic installations for the visualization of liquid or gas flow using hydrogen bubbles obtained by electrolysis of water. The design of a vertical hydrodynamic pipe, the technology of making experimental models, the design and purpose of the main equipment are considered. Research methods and procedures are described. The article presents the results of the studies that make it possible to evaluate the capabilities of the experimental equipment and picture physical processes around the bodies that change the kinematic parameters of motion in the incident flow according to a given law. The proposed research methods and experimental equipment are distinguished by originality. They can be used to study the features of macrostructures around bodies of complex geometric shapes and laws of motion.

Evaluating a novel dimensional reduction approach for mechanical fractionation of cells using a tandem flexible micro spring array (tFMSA)

Lab on a Chip ◽  
2017 ◽  
Vol 17 (4) ◽  
pp. 691-701 ◽  
Author(s):  
Yin-Ting Yeh ◽  
Ramdane A. Harouaka ◽  
Si-Yang Zheng
Keyword(s):  
Physical Properties ◽  
Dimensional Reduction ◽  
Rational Design ◽  
Experimental Models ◽  
Cell Fractionation ◽  
Reduction Approach

We present a novel methodology to establish experimental models for the rational design of cell fractionation based on physical properties of cells.

Natural Materials for Thermal Insulation and Passive Cooling Application

2015 ◽  
Vol 666 ◽  
pp. 1-16 ◽  
Author(s):  
Anna Laura Pisello ◽  
Federica Rosso
Keyword(s):  
Physical Properties ◽  
Thermal Insulation ◽  
Critical Analysis ◽  
Numerical Data ◽  
Energy Performance ◽  
International Standards ◽  
Passive Cooling ◽  
Natural Materials ◽  
Outdoor Spaces ◽  
Indoor And Outdoor

In this chapter a critical analysis about natural materials to enhance energy performance and thermal comfort in indoor and outdoor spaces is dealt with. In particular, thermal insulation and passive cooling application in buildings are analyzed. The physical properties permitting to achieve these benefits are presented, as well as the method and the international standards to measure them. Benefits deriving from these materials’ employment as insulation layers or buildings envelope in general of, or in the case of urban paving, are described and then the single materials are illustrated.Experimental and numerical data, as reported in the bibliography, support the dissertation with examples from the most recent research contributions.

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