experimental investigation and effective strength models

Experimental investigation and empirical modelling of FDM process for compressive strength improvement

Experimental investigation and empirical modelling of FDM process for compressive strength improvement

... University Journal of Advanced Research ORIGINAL ARTICLE Experimental investigation and empirical modelling of FDM process for compressive strength improvement Anoop K Sood a, Raj K Ohdar b, Siba ... into a series of 21/2D (two and a half dimensional) slice models with corresponding software, and thus the complicated 3-D model is converted into a series of simple two and a half dimensional layers ... permissible minimum and maximum settings recommended by the equipment manufacturer, past experiences and real industrial applications In order to build empirical model for compressive strength and study

Ngày tải lên: 13/01/2020, 12:25

10 37 0
An experimental investigation and statistical modelling for trim cutting operation in WEDM of Nimonic-90

An experimental investigation and statistical modelling for trim cutting operation in WEDM of Nimonic-90

... pressure and servo voltage (SV) during the machining of high strength Armor steel Results show that Ton, Toff and SV are significant variables to both material removal rate (MRR) and SR Bhuyan and ... turbine blades and combustion chamber, valve in turbo motors and disc in gas turbine This material possesses excellent strength at extreme pressure and temperature In present work, investigation ... Surface Methodology and Experimental Design Response surface methodology (RSM) is a collection of mathematical and experimental techniques that requires sufficient number of experimental data to

Ngày tải lên: 14/05/2020, 21:59

14 21 0
Experimental and numerical investigation on reserve strength of jackets with single diagonal and x brace configurations

Experimental and numerical investigation on reserve strength of jackets with single diagonal and x brace configurations

... 27/03/2022 Soil type Sand Clay Silt Sand Clay Sand Clay Sand Clay Sand Clay Sand Clay Sand Clay Experimental and numerical investigation on reserve strength of jackets with single diagonal and X brace ... 15:37, 27/03/2022 Experimental and numerical investigation on reserve strength of jackets with single diagonal and X brace configurations (9) E, K, L, A and r are elastic modulus, effective length ... 27/03/2022 Experimental and numerical investigation on reserve strength of jackets with single diagonal and X brace configurations summarised in Tables and for Mumbai high field (South) and Heera

Ngày tải lên: 10/10/2022, 07:19

25 4 0
The impact of hospital-based and community based models of cerebral palsy rehabilitation: A quasi-experimental study

The impact of hospital-based and community based models of cerebral palsy rehabilitation: A quasi-experimental study

... variable of the group and the ordinal variable of GMFCS was dichotomised into levels mild/moderate (I, II and III) and severe (IV and V) Residual analysis was performed and children who had residual ... attrition due to e.g sickness and non-compliance Instrumentation The Gross Motor Function Measure −66 item version (GMFM-66) is a condition specific and widely used, standardized and validated ordinal ... brought to them and they did not need to travel far to get support for their children Methods A quasi -experimental design was used as it was a pragmatic trial and it was not possible to randomly assign

Ngày tải lên: 27/02/2020, 13:44

10 17 0
The strength of trust over ties: Investigating the relationships between trustworthiness and tie-strength in effective knowledge sharing

The strength of trust over ties: Investigating the relationships between trustworthiness and tie-strength in effective knowledge sharing

... The Strength of Trust Over Ties: Investigating the Relationships between Trustworthiness and Tie -Strength in Effective Knowledge Sharing M Max Evans1, Ilja Frissen1 and Chun Wei Choo2 ... paper: Evans, M M., Frissen, I., and Choo, C W., 2019 The Strength of Trust Over Ties: Investigating the Relationships between Trustworthiness and Tie -Strength in Effective Knowledge Sharing The ... trust and two forms of knowledge sharing (i.e., tacit and explicit) Second, the hypotheses, concepts, and operationalizations in Lin (2007) and Zhou et al (2010) were different from Levin and Cross

Ngày tải lên: 05/11/2020, 04:29

15 14 0
Experimental investigation of the secondary creep of fiber reinforced concrete at high stress: Macroscopic measurement and digital image correlation

Experimental investigation of the secondary creep of fiber reinforced concrete at high stress: Macroscopic measurement and digital image correlation

... measurement from samples made of FRC and FRM 20 Tho, P D., et al / Journal of Science and Technology in Civil Engineering Methodology and experimental 2.1 Materials and characterization Two materials ... characterization at 28 days for all both FRC-05 and FRM-05, including the mean value and the standard deviation of Young’s modulus E and compressive strength fc , which were determined from repetitions ... sensors measurement and the DIC The effect of aggregate distribution and size on the damage and secondary creep are also studied To so, four-point flexure testing on beams, made of FRC and FRM, are

Ngày tải lên: 05/07/2022, 11:18

10 4 0
[15200426 - Journal of Atmospheric and Oceanic Technology] Tests of Acoustic Target Strength and Bubble Dissolution Models Using a Synthetic Bubble Generator

[15200426 - Journal of Atmospheric and Oceanic Technology] Tests of Acoustic Target Strength and Bubble Dissolution Models Using a Synthetic Bubble Generator

... in the ocean and similar diffusion coefficients and Henry’s law constants (Hayduk and Laudie 1974; Sander 2015) By contrast, Ar and N2 have very different aqueous concentrations and Henry’s law ... pp 139 Clay, C., and H Medwin, 1977: Acoustical Oceanography: Principles and Applications John Wiley and Sons, 544 pp Clift, R., J R Grace, and M E Weber, 1978: Bubbles, Drops and Particles Academic ... JANUARY 2020 RYCHERT AND WEBER 129 Tests of Acoustic Target Strength and Bubble Dissolution Models Using a Synthetic Bubble Generator KEVIN M RYCHERT Ocean

Ngày tải lên: 26/10/2022, 09:17

12 3 0
combined numerical and experimental investigation of the micro hydrodynamics of chevron based textured patterns influencing conjunctional friction of sliding contacts

combined numerical and experimental investigation of the micro hydrodynamics of chevron based textured patterns influencing conjunctional friction of sliding contacts

... in Costa and Hutchings,9 Etsion and Burstein10 and Ronen et al.11 among others Numerical and analytical analyses have also led to the determination of ‘optimal’ texture form, geometry and distribution ... at both ends of the ring profile, g is the film profile at x ¼ (the intercept) and r and q refer to the edge and flat land film shape Figure also shows the profile of laser textured chevrons Numerical ... Greenwood and Tripp46 and the evidence of similar representative surface by Gore et al.47 such an approach is assumed here Later, the close agreement between the experimental measurements and the

Ngày tải lên: 01/11/2022, 09:07

21 11 0
experimental investigation of the mechanical micro structural and thermal properties of thin crain layers deposited by pvd technique for various aluminum percentages

experimental investigation of the mechanical micro structural and thermal properties of thin crain layers deposited by pvd technique for various aluminum percentages

... www.elsevier.com/locate/procedia Proceedings of the JMSM 2008 Conference Experimental investigation of the mechanical micro structural and thermal properties of thin CrAIN layers deposited by PVD technique ... wear This quality of these coatings may be linked to their good mechanical and tribological properties Several experimental investigations have led to the development of CrAlN (Chronium Aluminum ... CrN coating The present work is based on the investigation of physical and mechanical properties of CrAlN coating deposited on a silicon substrate and the effect of the aluminium proportion on

Ngày tải lên: 02/11/2022, 10:39

10 3 0
experimental investigation of the mechanical properties of dry microbraids and microbraid reinforced polymer composites

experimental investigation of the mechanical properties of dry microbraids and microbraid reinforced polymer composites

... tubular form, and as 3D structures The former contains only two sets of strands through the thickness, and axial yarns in case of triaxial braids, whereas the latter have several strands through ... rate and level of automation which the braiding technique offers [1–3] Brunnschweiler [4,5] and subsequently Ko and Pastore [1] discussed in details the principles of braid manufacture and the ... tensile strength and Young’s modulus of the composites decreased whilst the endurance increased with respect to increasing braid angle Fouinneteau and Pickett [10] studied the properties of carbon and

Ngày tải lên: 02/11/2022, 10:39

11 3 0
experimental investigation on attenuation of emission with optimized lpg jet induction in a dual fuel diesel engine and prediction by ann model

experimental investigation on attenuation of emission with optimized lpg jet induction in a dual fuel diesel engine and prediction by ann model

... the engine and emission levels with the influences of the jet parameters are observed and analysed experimentally The optimized jet parameters obtained through CFD technique and the experimental ... 8mm andd 10mm, baseed on the simu ulation resultss, nozzle incliination angless were taken as -180°, 30°°, 45° and 90°; different % of LPG and d % of diesel combinations are 0% and d a 60% and ... nozzle n and inteersection of vertical axis off air inlet pipee and nozzle axis a (x), inclinnation of nozzle (θ), % of LPG L and % of diesel for diffferent loading g conditions over o emission and

Ngày tải lên: 02/11/2022, 10:40

12 3 0
experimental investigation on performance and emission characteristics of a diesel engine fuelled with mahua biodiesel using additive

experimental investigation on performance and emission characteristics of a diesel engine fuelled with mahua biodiesel using additive

... smoke and NOx emissions also decrease with increase in additive percentage in the biodiesel fuel During the course of this experimental investigation it was found that the overall performance and ... B90, B95, B100 and the diesel fuel are used as the test fuels where B85 represent 85% biodiesel and 15% additive Similarly B90 and B95 represent 90% biodiesel with 10% additive and 95% biodiesel ... consumption and exhaust gas temperature and also to measure the emission parameters like carbon monoxide, smoke opacity, unburnt hydrocarbon and nitrogen oxide emissions for both diesel and the prepared

Ngày tải lên: 02/11/2022, 10:40

11 2 0
role playing is an effective instructional strategy for genetic counseling training an investigation and comparative study

role playing is an effective instructional strategy for genetic counseling training an investigation and comparative study

... Role-playing is an effective instructional strategy for genetic counseling training: an investigation and comparative study Xiao-feng Xu1, Yan Wang1, Yan-yan Wang1, Ming Song2, Wen-gang Xiao3 and Yun Bai1* ... a counselee and his two brothers share symptoms including frequent bleeding without normal blood clotting, and swollen and painful knees that make walking difficult The counselee and his caregiver ... communication skills, and would likely contribute to future professional performance The average understanding of 40 of the key points in genetic counseling was significantly improved, and most students

Ngày tải lên: 04/12/2022, 16:19

10 1 0
Dynamic investigation and experimental validation of a gear transmission system with damping particles

Dynamic investigation and experimental validation of a gear transmission system with damping particles

... Based Design of Structures and Machines An International Journal ISSN: (Print) (Online) Journal homepage: www.tandfonline.com/journals/lmbd20 Dynamic investigation and experimental validation ... controller, including the gear components and their specific characteristics (Zhang, Zhong, and Chen 2015; Bao, Mao, and Luo 2016; Yu, Wang, and Zou 2018) Vibration and noise in gear transmissions will ... to the experimental measurement results The main and novel contributions of this study are: (1) incorporate investigation in numerical simulation and MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES

Ngày tải lên: 01/03/2024, 15:59

22 1 0
Experimental investigation and comparison of heat transfer coefficient of a two phase closed thermosyphon

Experimental investigation and comparison of heat transfer coefficient of a two phase closed thermosyphon

... filling ratios between 0.02 and 0.4 and experimentally and theoretically correlated an equation for dry out limit which is a function of filling ratio, the properties of fluid and heated length: FR ... International Journal of Energy and Environment (IJEE), Volume 5, Issue 4, 2014, pp.495-504 D e h fg ρ v P v 64 µ v L v (14) where Pv and ρv are the pressure and density of vapor and this expression changes ... input of evaporator and the accuracy of monitoring for voltage and electrical current was ± % The temperature of inlet and outlet coolant water was measured by digital thermometer and the coolant...

Ngày tải lên: 09/09/2015, 10:32

10 255 0
An experimental investigation on hydrogen fuel injection in intake port and manifold with different EGR rates

An experimental investigation on hydrogen fuel injection in intake port and manifold with different EGR rates

... parameters, voltage (∆V) and current (∆I), estimated by the Gaussian method, are ± V and ± 0.14 A respectively For fuel time (∆tr) and fuel volume (∆t), the uncertainties are ± 0.2 sec and ± 0.1 sec respectively ... in port injected hydrogen and manifold injected hydrogen and diesel at 75 % load The peak pressure in diesel is 78.5 bar and 70.08 bar with 20 % EGR in port injection and 73.5 bar in manifold ... Naber.J.D and Siebers.D.L, Hydrogen combustion under Diesel Engine conditions, International Journal of Hydrogen energy, Vol 23, No.5, pp 363 –371, 1998 [3] N.Saravanan and G.Nagarajan, Experimental investigation...

Ngày tải lên: 05/09/2013, 15:28

28 367 0
An experimental investigation of heat transfer and fluid flow in a rectangular duct with inclined discrete ribs

An experimental investigation of heat transfer and fluid flow in a rectangular duct with inclined discrete ribs

... field investigation with the mechanism of heat transfer Experimental setup Two experimental set-ups, one for heat transfer analysis and other for fluid flow analysis has been designed and fabricated ... B.V., Schabacker, J., and Boles, A., Experimental and numerical study of developed flow and heat transfer in coolants with channels with 45 degree ribs”, Int Journal of Heat and fluid flow, 20, ... International Journal of Energy and Environment (IJEE), Volume 1, Issue 6, 2010, pp.987-998 997 [21] Aharwal K.R Gandhi B.K and Saini J.S Investigation of heat transfer and friction using inclined...

Ngày tải lên: 05/09/2013, 16:10

12 831 0
An experimental investigation of performance and exhaust emission of a diesel engine fuelled with Jatropha biodiesel and its blends

An experimental investigation of performance and exhaust emission of a diesel engine fuelled with Jatropha biodiesel and its blends

... economic yield can be considered to range between 0.75 and 2.00 kg/plant and 4.00 and 6.00 MT per hectare per year depending on agro-climatic zone and agriculture practices One hectare of plantation ... unreacted remainder of methanol and catalyst which if not removed can react and damage storing and fuel carrying parts During washing ester present react with water and can form soap Two to three ... properties The fuel properties were determined and are listed in Table 1, for Jatropha oil methyl ester and diesel 2.3 Experimental set up The experimental setup shown in Figure consists of a...

Ngày tải lên: 05/09/2013, 16:11

12 568 0
Experimental investigation for powder reinforcement effect on mechanical properties and natural frequency of isotropic hyper composite plate with various boundary conditions

Experimental investigation for powder reinforcement effect on mechanical properties and natural frequency of isotropic hyper composite plate with various boundary conditions

... powder and short fiber reinforcement of samples studied in experimental investigation to evaluate the natural frequency And, Tables and shows the natural frequency of plate samples studied with experimental ... aspect ratio (AR=1, (𝑎 = 𝑏 = 25 𝑐𝑚) and (𝑕 = 𝑚𝑚)) and different volume fraction of resin, powder and short fiber, as shown in Tables and Table Comparison of experimental mechanical properties ... fiber and resin types and the effect of volume fraction of fiber and matrix materials on modulus of elasticity for composite materials Their results showed good agreement between experimental and...

Ngày tải lên: 09/09/2015, 10:06

18 539 0
Numerical and experimental investigation of single and two phase impinging jet heat transfer

Numerical and experimental investigation of single and two phase impinging jet heat transfer

... addresses the numerical and experimental investigation of single and two-phase impinging jet heat transfer The goal of this study is to contribute to a more detailed investigation of effects ... the geometry, Biot number, fin structure and an inserted baffle Water and a dielectric fluid are used in numerical and experimental studies of single and two-phase problems Fig 2.1 Classification ... height and plate material were discussed Also, Zhuang et al [1997] performed an experimental investigation on the influences of different parameters, e.g liquid velocity, channel size and fluid Prandtl...

Ngày tải lên: 14/09/2015, 13:31

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