scholarly journals Supplemental information for "An Empirical V-notch Weir Equation and Standard Procedure to Accurately Estimate Drainage Discharge"

2021 ◽  
Author(s):  
Sami Shokrana ◽  
Ehsan Ghane
Keyword(s):  
Standard Procedure ◽  
Supplementary Information ◽  
Background Information ◽  
Experimental Setup ◽  
Information File

This supplementary information file contains figures and detailed descriptions of the experimental setup. Also, this file contains necessary figures for readers who want to gain further background information of our experiment.

scholarly journals An innovative fixture for testing the crashworthiness of composite materials

2020 ◽  
Vol 15 (55) ◽  
pp. 76-87
Author(s):  
Lorenzo Vigna ◽  
Iman Babaei ◽  
Ravin Garg ◽  
Giovanni Belingardi ◽  
Davide Salvatore Paolino ◽  
...  
Keyword(s):  
Composite Materials ◽  
Energy Absorption ◽  
Standard Procedure ◽  
Test Procedure ◽  
International Standards ◽  
Experimental Setup ◽  
Flat Specimen ◽  
Specific Energy Absorption ◽  
Impact Energies ◽  
Force Displacement

Despite the growing diffusion of composite materials in automotive and aerospace sectors, a standard procedure for testing their crashworthiness has not been developed yet. At present, the international standards for testing composite materials under impact conditions are not adequate to test their crush behavior. In this paper, a procedure for measuring the energy absorption due to the compressive crushing of a composite flat specimen, along its mid plane, is proposed. The experimental setup requires a fixture to hold the specimen and to avoid its buckling and an instrumented drop weight tower to obtain the force-displacement curves with the aim of calculating the Specific Energy Absorption. The paper will describe the adopted test procedure and some of the features of the newly developed experimental setup. The effectiveness of the procedure is demonstrated by testing several glass fiber-epoxy specimens under different impact energies.

Design of an Experimental Setup for Testing Multiphysical Effects on High Speed Mini Rotors

2011 ◽  
Vol 133 (5) ◽  
Author(s):  
Emre Dikmen ◽  
Peter J. M. van der Hoogt ◽  
André de Boer ◽  
Ronald G. K. M. Aarts ◽  
Ben Jonker
Keyword(s):  
High Speed ◽  
Critical Speed ◽  
Rotation Speed ◽  
Design Procedure ◽  
Background Information ◽  
Small Scale ◽  
Experimental Setup ◽  
Research Projects ◽  
Design Decisions ◽  
Design Requirements

Recently, there have been numerous research projects on the development of minirotating machines. These machines mostly operate at speeds above the first critical speed and have special levitation systems. Besides, the multiphysical effects become significant in small scale. Therefore, advanced modeling approaches should be developed and innovative experimental rigs with the foregoing requirements should be constructed in order to test the developed techniques. In the current study, the design of an experimental setup for testing the multiphysical effects has been outlined. First, the previously developed multiphysical models (Dikmen, E., van der Hoogt, P., de Boer, A., and Aarts, R., 2010, “Influence of Multiphysical Effects on the Dynamics of High Speed Minirotors—Part I: Theory,” J. Vibr. Acoust., 132, p. 031010; Dikmen, E., van der Hoogt, P., de Boer, A., and Aarts, R., 2010, “Influence of Multiphysical Effects on the Dynamics of High Speed Minirotors—Part II: Results,” J. Vibr. Acoust., 132, p. 031011) for the analysis of small scale rotors are described briefly for background information. Second, an analysis of the effect of the rotor parameters (diameter, length, rotation speed, etc.) on the dynamics of the rotor under multiphysical effects is presented. Afterward the design process which includes the design decisions based on these results, the availability, simplicity, and applicability of each component is presented in detail. Finally, the experimental results have been presented and the efficiency of the design has been evaluated. In summary, the design requirements for an experimental setup for testing multiphysical effects on minirotors have been analyzed. The design procedure and evaluation of the design have been presented.

scholarly journals Changes in clients’ well-being (ORS) and state hope (SHS) during inpatient substance abuse treatment

2020 ◽  
Vol 37 (4) ◽  
pp. 384-399
Author(s):  
Eeva Ekqvist ◽  
Katja Kuusisto
Keyword(s):  
Substance Abuse ◽  
Substance Abuse Treatment ◽  
Progress Monitoring ◽  
Rating Scale ◽  
Standard Procedure ◽  
Well Being ◽  
Background Information ◽  
Living Situation ◽  
Treatment Unit ◽  
Abuse Treatment

Aims: During inpatient substance abuse treatment, professionals seek to help clients to achieve improvement in various life domains affected by substance abuse. Progress monitoring during substance abuse treatment has been called for, and in this study we examine how clients’ levels of well-being and hope change during inpatient substance abuse treatment. Methods: Clients ( N = 168) entered the treatment facility between January 1, 2017 and August 31, 2018. The prospective data were gathered from one treatment unit located in central Finland on entry into treatment, during and at the end of treatment. Using the Outcome Rating Scale (ORS) as a therapeutic tool was standard procedure in the treatment unit. Demographic information on participants, information on their previous substance use and scores on the State Hope Scale (SHS) were collected through structured questionnaires. Non-parametrical tests (Mann–Whitney U test; Kruskal–Wallis χ2; Spearman’s rho) were used to study changes in indicators of well-being and hope. Results: As hypothesised, inpatient treatment had a positive effect on both ORS and SHS and they were interrelated. Differences in gender, living situation and previous admissions were found when studying how the background information of the participants was related to the change achieved in ORS and SHS. Conclusions: Inpatient substance abuse treatment seemed to enhance both well-being and hope of the clients of inpatient substance abuse treatment.

scholarly journals Biodiesel from Mustard oil: a Sustainable Engine Fuel Substitute for Bangladesh

2013 ◽  
Vol 2 (3) ◽  
pp. 141-149 ◽  
Author(s):  
M.M. Alam ◽  
K.A. Rahman
Keyword(s):  
Diesel Engine ◽  
Standard Procedure ◽  
Supply System ◽  
Edible Oil ◽  
Mustard Oil ◽  
Experimental Setup ◽  
Engine Fuel ◽  
Renewable Energy Policy ◽  
Rural People ◽  
Foreign Countries

Various attractive features of mustard oil based biodiesel as a potential substitute for engine fuel are investigated in this paper for use in Bangladesh. Although the use of mustard oil as edible oil has been reduced, Bangladesh still produces 0.22 million metric tons of mustard oil per year. This surplus mustard oil would satisfactorily be used as an alternative to diesel fuel, and thus could contribute in reducing the expenses for importing fuel from foreign countries. Moreover, the rural people of Bangladesh are capable of producing mustard oil themselves using indigenous machines. Fuel properties of biodiesel obtained from mustard oil were determined in the laboratory using standard procedure and an experimental setup was constructed to study the performance of a small diesel engine. It is observed that with biodiesel, the engine is capable of running without difficulty. Initially different lower blends of biodiesel (e.g., B20, B30 etc.) have been used to avoid complicated modification of the engine and the fuel supply system. It is also found in some condition that mustard oil based biodiesel have better properties than those made from other vegetable oils. These properties of mustard oil based biodiesel were evaluated to validate its sustainability in Bangladesh. Keywords: biodiesel, indigenous machines, mustard oil, renewable energy policy, sustainability

Evolution of the microstructure of Cu(Ti)/SiO2 layers annealed in NH3

1995 ◽  
Vol 53 ◽  
pp. 452-453
Author(s):  
J. Liu ◽  
N. D. Theodore ◽  
D. Adams ◽  
S. Russell ◽  
T. L. Alford ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Titanium Nitride ◽  
Large Scale ◽  
Standard Procedure ◽  
Alloy Film ◽  
Electron Beam Evaporation ◽  
Copper Metallization ◽  
Nominal Composition ◽  
Ti Alloy ◽  
Thermally Grown

Copper-based metallization has recently attracted extensive research because of its potential application in ultra-large-scale integration (ULSI) of semiconductor devices. The feasibility of copper metallization is, however, limited due to its thermal stability issues. In order to utilize copper in metallization systems diffusion barriers such as titanium nitride and other refractory materials, have been employed to enhance the thermal stability of copper. Titanium nitride layers can be formed by annealing Cu(Ti) alloy film evaporated on thermally grown SiO2 substrates in an ammonia ambient. We report here the microstructural evolution of Cu(Ti)/SiO2 layers during annealing in NH3 flowing ambient.The Cu(Ti) films used in this experiment were prepared by electron beam evaporation onto thermally grown SiO2 substrates. The nominal composition of the Cu(Ti) alloy was Cu73Ti27. Thermal treatments were conducted in NH3 flowing ambient for 30 minutes at temperatures ranging from 450°C to 650°C. Cross-section TEM specimens were prepared by the standard procedure.

Are HOLZ lines kinematic in off-zone-axis orientation?

1993 ◽  
Vol 51 ◽  
pp. 692-693
Author(s):  
J. M. Zuo ◽  
A. L. Weickenmeier ◽  
R. Holmestad ◽  
J. C. H. Spence
Keyword(s):  
Structure Determination ◽  
Standard Procedure ◽  
High Order ◽  
Zone Axis ◽  
Great Promise ◽  
Line Position ◽  
Measured Intensity ◽  
Constant Intensity ◽  
Axis Orientation ◽  
Diffraction Condition

The application of high order reflections in a weak diffraction condition off the zone axis center, including those in high order laue zones (HOLZ), holds great promise for structure determination using convergent beam electron diffraction (CBED). It is believed that in this case the intensities of high order reflections are kinematic or two-beam like. Hence, the measured intensity can be related to the structure factor amplitude. Then the standard procedure of structure determination in crystallography may be used for solving unknown structures. The dynamic effect on HOLZ line position and intensity in a strongly diffracting zone axis is well known. In a weak diffraction condition, the HOLZ line position may be approximated by the kinematic position, however, it is not clear whether this is also true for HOLZ intensities. The HOLZ lines, as they appear in CBED patterns, do show strong intensity variations along the line especially near the crossing of two lines, rather than constant intensity along the Bragg condition as predicted by kinematic or two beam theory.

Passy-Muir Speaking Valve Use in a Children's Hospital: An Interdisciplinary Approach

2008 ◽  
Vol 18 (2) ◽  
pp. 76-86 ◽  
Author(s):  
Lauren Hofmann ◽  
Joseph Bolton ◽  
Susan Ferry
Keyword(s):  
Tracheostomy Tube ◽  
Pediatric Population ◽  
Interdisciplinary Approach ◽  
Extended Period ◽  
Speech Development ◽  
Tube Placement ◽  
Background Information ◽  
Speaking Valve ◽  
Children's Hospital ◽  
Children’S Hospital

Abstract At The Children's Hospital of Philadelphia (CHOP) we treat many children requiring tracheostomy tube placement. With potential for a tracheostomy tube to be in place for an extended period of time, these children may be at risk for long-term disruption to normal speech development. As such, speaking valves that restore more normal phonation are often key tools in the effort to restore speech and promote more typical language development in this population. However, successful use of speaking valves is frequently more challenging with infant and pediatric patients than with adult patients. The purpose of this article is to review background information related to speaking valves, the indications for one-way valve use, criteria for candidacy, and the benefits of using speaking valves in the pediatric population. This review will emphasize the importance of interdisciplinary collaboration from the perspectives of speech-language pathology and respiratory therapy. Along with the background information, we will present current practices and a case study to illustrate a safe and systematic approach to speaking valve implementation based upon our experiences.

Sign in / Sign up

Export Citation Format

Share Document