bluuebunny/crossref_metadata_2025_split huggingface dataset:
Results of the CCRI(II)-S12.H-3 supplementary comparison: Comparison of methods for the calculation of the activity and standard uncertainty of a tritiated-water source measured using the LSC-TDCR method
Authors: Cassette Philippe , Altzitzoglou Timotheos , Antohe Andrei , Rossi Mario , Arinc Arzu , Capogni Marco , Felice Pierino de , Galea Raphael , Gudelis Arunas , Kossert Karsten , Lee K B , Liang Juncheng , Nedjadi Youcef , Verdecia Pilar Oropesa , Shilnikova Tanya , Wyngaardt Winifred van , Ziemek Tomasz , Zimmerman Brian 
Published: August 2019

A comparison of calculations of the activity of a 3H2O liquid scintillation source using the same experimental data set collected at the LNE-LNHB with a triple-to-double coincidence ratio (TDCR) counter was completed. A total of 17 laboratories calculated the activity and standard uncertainty of the LS source, using the files with experimental data. The results, as well as relevant information on the computation techniques are presented and analysed in this paper. All results are compatible, even if there is a significant dispersion between the reported uncertainties. An output of this comparison is the estimation of the dispersion of TDCR measurement results when measurement conditions are well defined.
KEY WORDS FOR SEARCH
Radionuclide metrology, supplementary comparison, tritium, liquid scintillation

Main text

To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.
The final report has been peer-reviewed and approved for publication by the CCRI, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Effect of sequencing rules on order release policies in a stochastic and dynamic job shop with sequence-dependent setup times – a simulation study
Authors: Rani Sushma , Jain Ajai , Angra Surjit 
Published: August 2019

AbstractOrder review and release in job shop with sequence-dependent setup times is one of the most complex job shop scheduling problems. This article analyses the effect of sequencing rules on different order release policies for performance measures i.e. mean throughput time, total setups, mean setup time, number of tardy jobs and makespan in a stochastic and dynamic job shop with sequence-dependent setup time. Four sequencing rules, viz. first-come-first-serve, planned release date, earliest due date, shortest processing time and five order review and release policies i.e. aggregate workload trigger, workcentre workload trigger, corrected workload trigger, upper bound release and lancaster university management school corrected order release are taken into consideration. A simulation model using Promodel®is developed for experimental purpose. Results indicate that for a given order review and release policy, there is an effect of sequencing rule in a stochastic and dynamic environment with consideration of sequence-dependent setup time and the best performing sequencing rule is different for different order review and release policies for a given performance measure.
Effect of piston ring geometries on lubrication and friction in diesel engine
Authors: Pachaiyappan Ilanthirayan , Thamildorai Nobel , Mani Kalayarasan 
Published: August 2019

Abstract
Lubrication and friction in piston rings are of a greater importance which has been receiving significant attention from tribologists for a long time. The main subsystems which contribute to friction include the ring-pack/liner, piston-skirt/liner, piston-pin/connecting-rod and connecting rod-crankshaft bearings. Piston rings are used in engines mainly to reduce leakage of gas in the combustion chamber and simultaneously provide a lubrication film in order to reduce friction during its motion. Wear between piston rings and liner is inevitable and therefore in order to reduce it, different types of ring geometries are being used which has its own advantages and disadvantages. Another major problem being faced during operation is that oil from the liner gets transported by pumping, reverse blow by, inertia and squeezing of oil due to ring dynamics into the combustion chamber. The present work focuses on to investigate different ring geometries and their effects on friction and lubrication oil consumption. It was found that Tangential force has an inverse relationship with Oil Film Thickness and Oil filling ratio. Top ring friction is high at Top dead centres due to boundary lubrication. Ring Barrel height has a direct relationship with asperity friction and an inverse relationship with Oil Film Thickness. Axial width is directly proportional to the wear of rings, which is due to the area exposed to back pressure on the rings exerted by gases from combustion chamber. Second ring closed gap has a direct relationship with Inter-ring pressure thus increasing reverse blowby. Rings with a Positive twist are found to be stable during operation. For this analysis, AVL Excite software is being used and results are validated with an experimental model.
Response of Laminated Composite Cylindrical Shell Using Higher Order Shear Deformation Theory
Authors: Suryawanshi Aniket A , Gadade Appaso M 
Published: August 2019

Abstract
The present work proposes the response of composite laminated cylindrical shell using higher order shear deformation theory (HSDT). For the finite element formulation a displacement field having five degrees of freedom is considered and a nine noded isoparametric element is used. The finite element model is developed using MATLAB code. The numerical results are obtained for the deflection of cylindrical shell for arbitrary boundary condition, stacking angle and radius to thickness ratio. The results are validated using literature and it shows good agreement
Simulation and Experimentation of Single Point Incremental Forming of Different Geometries
Authors: Gaira Sukrit , Theja V Sai , Karthikeyan G. 
Published: August 2019

Abstract
Incremental Sheet Forming is a rather new forming process which is used to obtain complex three dimensional parts by stretching the sheet with a pin tool whose path is controlled by a CNC machine. This study presents a new fixture design for Single Point Incremental Forming (SPIF) and experiments conducted for two profiles. Single Point Incremental Forming is used for small and batch production. The fixture presented in this study was made using mild steel which can be used for performing multiple forming purposes. The circular profile and a square profile were generated using a spherical head tool of 5mm diameter made of Stainless steel and the results were compared with that of Simulations for the same profiles using the analysis software, ABAQUS. The experiments were carried out using Computer Numerical Control (CNC) machine.
Starting Characteristic of Supersonic Mixed Compression Air Intake with Cowl Porosity
Authors: Gahlot N K , Singh N K 
Published: August 2019

Abstract
The present study is aimed towards the investigation of starting characteristic of supersonic air intake by adopting the cowl porosity. A computational study has been performed with k-omega turbulence model adopting the RANS solver. Air Intake shows the unstart phenomenon for the clean model case and this could be due to large shock wave boundary layer interaction near the throat. After implementing the cowl porosity, intake shows the starting behavior and there after a compression in the flow is observed. It also improves the quality of flow and performance of supersonic air intake. The obtained result have been validated with the previously published data. All the calculations were performed at design Mach no of 2.2 for free flow conditions.
Process parameter optimization of dmls process to produce AlSi10Mg components
Authors: Shah R K , Dey P P 
Published: August 2019

Abstract
AlSi10Mg components were produced by Direct Metal Laser Sintering (DMLS) and its physical properties like density and mechanical properties ultimate tensile strength were measured.The experimental analysis showed that energy density and hatch spacing are the vital factors influencing the density of the components, the range of energy density for obtaining the best result was 42.40-63.25 J/mm3.The most important parameter effecting the Ultimate Tensile Strength (UTS) was Laser Power but Hatch Spacing also had an equal importance on the tensile strength but energy density analysis revealed that the highest energy density did not gave the least value of UTS as it was in the case of density.The optimum process parameter for both density and UTS was found to be a Laser Power of 330 W,Scan Speed of 1200 mm/s and Hatch Spacing of 0.15 mm.
Sustainable supplier selection for battery manufacturing industry: A MOORA and WASPAS Based Approach
Authors: Jayant Arvind , Chandan Aditya Kumar , Singh Shweta 
Published: August 2019

Abstract
The aim of present research work is to hybrid the “MOORA and WASPAS” MCDM methods in the sustainable vendor’s selection & evaluation decision. It also considers the feedback impact of the decision on strategic variables that determine the future viability of the case company in the competitive business environment. MCDM strategic decision framework is applied that considers simultaneously the influence of criteria and sub-criteria on the sustainable vendor evaluation decision. The developed framework is evaluated, and criteria weight is determined using the step-wise weight assessment ratio (SWARA) method. The MOORA & WASPAS consider the influence of criteria, sub-criteria and their interdependencies simultaneously in the system. The results of the model is the relative priorities ad ranking developed for the suppliers. The present research has been conducted in a battery manufacturing company of Punjab state of India. The influence of dimension of sustainability dimensions would be widespread due to the big market in which the case company operates. The outcome the present work can provide support to the managers who are decision makers in the industries. The framework present in the research arriving at an optimal sound decision considering all sustainability applicable dimensions. The novelty of the approach lies in the use of different MCDM model integrating the dimension of sustainability with a feedback effect for vendor selection. The industry would be benefited by showing its commitment toward social responsibility, environment management, and economic aspects leading to improved market image and profitable business with sustainability.
Multi-response Optimization using TGRA for End Milling of AISI H11 Steel Alloy Using Carbide End Mill
Authors: Singh Pradeep K , Saini Pardeep , Kumar and Kanish 
Published: August 2019

Abstract
The AISI H11 steel is an important material used for making tools & dies. Machining is a very important activity in manufacture of tools & dies where the surface finish and metal removal rate play a very vital role. This paper presents the influence of the cutting speed, feed rate and depth of cut in end milling onto the surface roughness (SR) and metal removal rate (MRR). The machining experiments have been carried out on CNC vertical milling machine. Taguchi grey relational analysis (TGRA) with standard L27 orthogonal array has been selected to investigate the connection for studying surface roughness and metal removal rate (MRR). Both the responses viz. surface roughness and material removal rate are assumed to have equal weightage (W1 = W2 = 0.5) considering general machining conditions. The model significance tests have been conducted using ANOVA to find out which factors are statistically significant. The percentage contribution of cutting speed, feed rate and depth of cut are 29.13 %, 40.93 % and 17.4 % respectively. Optimization has been carried out to get optimum combination of SR and MRR.
Numerical experiments of flux difference splitting methods with high resolution scheme for supersonic flows
Authors: Rajput Uttam Singh , Singh Krishna Mohan 
Published: August 2019

Abstract
In this work, we have carried out the assessment of a high resolution scheme for unsteady compressible flow. For high order spatial accuracy, we have used fifth order weighted essentially non oscillatory (WENO) scheme. This scheme is applied to four flux difference splitting (FDS) methods: Harten-Lax-van-Leer (HLL), Roe solver, Harten-Lax-van Leer-Contact (HLLC), and Rusanov methods. We have compared results of these flux schemes with each other. WENO scheme is used for the reconstruction of left and right state variable across the cell interface for high resolution. The reconstruction procedure is performed in terms of primitive variables instead of conservative variable, in order to avoid spurious oscillation. We have considered two test cases: shock wave reflection and supersonic viscous flow over a flat plate, to access the performance of FDS schemes. An explicit third order TVD Runge-Kutta method is used for advancement of solution in time. The present results are compared with available numerical solutions. WENO-HLLC has good shock capturing capabilities as compare to WENO-Roe, WENO-HLL and WENO-Rusanov methods. It also provides best results inside and outside the boundary layer.
Improvement in Manufacturing System by Rearrangement in Layout Design – A Case Study
Authors: Singh Shivam , Khanduja Dinesh 
Published: August 2019

Abstract
Market demands are rising deliberately. Continuous modification in design with improved features has become a necessity to survive in the present competitive market. This throughout adaptation of new features and techniques is a great challenge to the manufacturing system. It is tough call for any firm to organise its layout against the change in design and type of product. The change in layout is tedious and costly for small scale industries with job shop system. Thus, improvement in facility layout should be such that it is easily flexible to the changed scenario. Also it should enhance productivity by reducing the distance flow, lead time and wastage. A case study was carried out at a job shop production industry- Bluebird Lights Pvt. Ltd. Delhi, India. After the analysis of the present layout, a revised layout plan was optimised for its variety of products being manufactured.
An Intelligent Simulation based case study of Indian Micro Small Medium Enterprise (MSME) of farm equipment manufacturing
Authors: Sharma Janpriy , Jayant Arvind 
Published: August 2019

Abstract
The manufacturing field is the area where application of simulation is an essential tool for validating the methods and architecture before applying them to factory shop floor. In this paper an Indian Micro Small Medium Enterprise (MSME) is taken into consideration, which manufactures agricultural equipment’s with aim to mechanise the Indian farming techniques. Presented case study is authentic and adopted for Gahir Agro Industries situated in agricultural hub, state of Punjab. Proposed company is all set to launch a new farm equipment called ‘Laser Land Leveller’ which got approval from governing body and ready for its batch production because of seasonal demand. Present study encapsulates the modelling and simulation as tool for analysis of manufacturing process of laser land leveller and its predicted production levels under actual working conditions. Tool used for modelling and simulation is ARENA 15.1 by Rockwell Automation Studio.
A pilot study on thermal comfort in Indian Railway pantry car chefs
Authors: Alam M S , Arunachalam M , Salve U R 
Published: August 2019

Abstract
An Indian railway pantry car kitchen is a typical kitchen, where involves various kinds of thermal environment factors. Till now, the research related to pantry car kitchen is rarely reported. Therefore, this pilot study explores the thermal environmental factors and its impact on the chef’s comfort in two different pantry car kitchen (Non-AC and AC) using a subjective and physical measurement technique. The thermal comfort level was quantified by Predicted Mean Vote (PMV) Index and Predicted Percentage Dissatisfied (PPD) Index. The thermal sensation of non-air-conditioned pantry cars was hot with PMV and PPD values are 2.93 and 99% respectively. Whereas, air-conditioned pantry cars was a warm thermal sensation with PMV and PPD values are 2.17 and 84% respectively. Moreover, most of the chef (86%) are perceived thermal discomfort in both pantry car kitchens. The result concluded that both types of pantry car kitchens are having thermal sensation effect of hot and warm. A further detail study is necessary and a possible design intervention may require to enhance thermal comfort of chefs.
Empirical modeling of cutting speed during WEDM of nimonic 263
Authors: Singh B , Misra J P 
Published: August 2019

Abstract
Cutting speed (CS) is a main process performance measure parameter of WEDM process. CS is mainly affected by input process parameters of WEDM and hence production and machining efficacy. Therefore, it is essential to pick the optimal combination of input parameters to get better CS. In this study, four parameters; Spark on (Son), Spark off (Soff), servo voltage (Sv), and peak-current (Ip) were selected for developing an empirical model of CS during WEDM of nimonic 263. Total 81 samples were machined on different WEDM parametric conditions based on three level full-factorial design of experiment with one replication of each run. This paper describes user-defined RSM based mathematical modeling for predicting optimal parametric setting for cutting speed. Furthermore, analysis of variance (ANOVA) was applied to find significant parameters and it was depicted that Son and Ip were the key parameters affecting average CS.
Design, Modelling and Manufacturing of 16 Cylinder Hydraulic Fixture with Automated Clamping System
Authors: Dhulia Jaykumar K , Maniar Nirav P 
Published: August 2019

Abstract
The function of a jig and/or fixture (fixturing system) is to hold a workpiece firmly in position during a manufacturing process. It is seeming that almost all the literature of fixture is focused on principles and theoretical aspects of fixture design. This raises a question of the practical value of fixture research. There is a clear demand for designing and manufacturing fixture for real industrial component and more research in computerized fixture design in such fields. The present research work satisfies this demand by deploying the fixture design task into an overall manufacturing process to obtain best fixture design solution for real industrial component. The component is rear flange of gear case widely used in automobile industry, made up of cast iron. The major operations to be performed are drilling and milling. The research includes design and manufacturing of a fixture with automated clamping system, which provides location and clamping arrangement for machining 4 components in one cycle on VMC 640 of pallet size 800 mm x 500 mm. Machine tools, material handling devices, transport and other mobile equipment, aviation systems, etc. do use hydraulic systems, butapplication of hydraulic principles in fixture is of uncovered area till now. This paper includes designing and manufacturing 16-cylinder hydraulic fixture with automated clamping system for machining rear flange on VMC. The important details of the part and fixture are included in each section along with 2D drawing and 3D view of finished component and fixture assembly using Creo 2.0.Fixture is not only designed but manufactured also, it sets the classical example of design for manufacturing.
Tribological Behaviour of Graphene Coated Bearing Steel (EN31)
Authors: Moharana R , Sengar S S , Badhan B , Rao U S , Gautam R K , Tyagi R 
Published: August 2019

Abstract
The present investigation is on the tribological behaviour of graphene coated bearing steel (EN31). Though bearing steel has excellent mechanical properties but its wear properties are inadequate. To enhance its wear properties, bearing steel was coated by graphene. Graphene is a very unique and peculiar material. It has excellent mechanical, chemical, electrical, magnetic and optical properties. Furthermore, it is light in weight which makes it one of the most sought after materials in the research world. To improve the adhesion property between graphene and bearing steel, bearing steel was first coated with nickel using electroplating technique. Then graphene was coated by CVD technique. To analyse the characteristics of graphene, Raman spectroscopy was carried out. The friction and wear tests were performed at constant load of 1 N and different speeds of 0.05 m/s, 0.075 m/s and 0.1 m/s for the tribological analysis of the materials. After wear, the worn out surfaces were further investigated by using scanning electron microscope (SEM). From the present investigation it has been observed that coated bearing steel shows improved tribological characteristics.
Process Parameter Optimization of Ultrasonic Assisted Electrochemical Magnetic Abrasive Finishing of 316L Stainless Steel
Authors: Farwaha Harnam Singh , Deepak Dharmpal , Brar Gurinder Singh 
Published: August 2019

AbstractThere is requirement of advancements in the machining processes able to achieve better surface finish in tight tolerances. It is not always easy to produce work piece characteristics in order to fulfill the listed requirements by only using the traditional finishing processes. Ultrasonic assisted electrochemical magnetic abrasive finishing (UEMAF) is a hybrid micro machining process and finish surfaces of hard and brittle materials up to nano meter scale. UEMAF integrates the use of electrochemical machining, ultrasonic vibrations and magnetic abrasive finishing. Taguchi technique is used to find optimal process parameters of Ultrasonic assisted electrochemical magnetic abrasive finishing (UEMAF). A L9 Orthogonal array, applied to analyze the effect of ultrasonic assisted electrochemical magnetic abrasive finishing process parameters (rpm of work piece, % wt. of abrasive and ultrasonic frequency time) on percentage improvement in surface finish (PISF).
Experimental investigations of TIG welding based additive manufacturing process for improved geometrical and mechanical properties
Authors: Gokhale Nitish P. , Kala Prateek , Sharma Varun 
Published: August 2019

Abstract
The welding based additive manufacturing process has a potential for producing functional 3D metallic component in a cost effective manner. Out of many welding based alternatives available TIG (Tungsten Inert Gas) based additive manufacturing process is one of the efficient processes. This article aims at developing TIG welding based additive manufacturing process for producing metallic parts with improved geometrical and mechanical properties. In this work authors have identified a process parameter condition by which components with good geometrical properties can be produced. The work reports least bead width deposited, for 1.2 mm filler wire, using wire arc based additive manufacturing system. The study performed on residual stress analysis of the deposited material showed compressive residual stresses throughout the sample. Usually welding process produces tensile stresses in the specimen which may reduce the product life. The compressive stresses reported in this study are considered good as they tend to increase product life. Authors have also addressed the reason for this unusual but favourable behaviour. This work would also help to develop automated TIG welding based metal deposition system to produce thin walled structures with improved mechanical and geometrical properties.
In-plane vibration of curved beams subjected to moving loads using finite element method
Authors: Poojary Jatin , Roy Sankar K 
Published: August 2019

Abstract
In-plane vibration of curved beams caused by loads moving at constant velocity is studied by means of finite element method. Curved beam elements incorporating shear effects by means of first order shear deformation beam theory are used for this purpose. Damping effects are assumed to be negligible. The vibration response of the curved beam under loads moving at a constant velocity along the beam is found and compared with that obtained using ANSYS to validate the study.