bluuebunny/crossref_metadata_2025_split huggingface dataset:
An acoustic pressure pipette aspiration method for isotropic materials
Authors: Maghzinajafabadi M , Lamprecht R , Döllinger M , Semmler M , Sutor  
Published: November 2019

Abstract
A measurement setup is presented as a method to determine the elasticity modulus of both artificial and real tissue as a function of frequency. The future goal at the end is to develop and validate the method to measure the elasticity modulus of ex vivo cadaver animal vocal folds over the human phonation frequency range. In the present study, we investigate an innovative acoustic pressure pipette aspiration technique to measure the material characteristic of an isotropic silicone specimen with similar characteristics as human vocal folds. With the aim of ensuring reliable results, we test our method on different mixtures of silicone rubber. Four silicone samples with different consistencies were tested over a frequency range of 50 –500Hz. Influence of vibrometer laser spot location in an enclosed area on the sample surface was investigated by repeating the measurements ten times. The results show only small standard deviations demonstrating the potential of the acoustic pressure pipette aspiration technique for material characterization.
The status of the concept of reference object in measurement in the human sciences compared to the physical sciences
Authors: Wilson M , Mari L , Maul A 
Published: November 2019

Abstract
For measurement in the human sciences, one barrier to being able to see the commonalities with measurement in the physical sciences has been the common prominence that is often given to the important place that “reference objects” are given in introductory accounts in metrology. The obvious difficulties in having such objects, say, “reference humans,” makes it difficult to build connections. In this paper, we outline a way to broaden the concept of a reference object in way that addresses this issue. In this light we then discuss the recent developments in the International System of Units (SI), and comment on certain similarities.
Interpreting the relationship between item difficulty and DIF: examples from educational testing
Authors: Wilson M , Dulhunty M 
Published: November 2019

Abstract
The investigation of differential item functioning (DIF) is commonplace in educational testing. Most often it results in no more than the discarding of a proportion of the developed items. Apart from the potential threat to validity of the instrument due to differential loss of certain types of items, this also is inefficient in terms of item development costs. This paper discusses certain situations where particular patterns of non-uniform DIF can be related to item difficulty, and modelled by enhanced Rasch models. This allows for a more efficient usage of items, as well as, potentially, an improved understanding of the complexities of how educational tests function across different sub-populations.
Upper limbs biomechanics: drinking evaluation protocol in hemiparetic patients
Authors: Crenna Francesco , Bergamino Camilla , Ponte Chiara , Simonini Marina , Rossi Giovanni B 
Published: November 2019

Abstract
Biomechanical measurements applied to upper limbs gesture, characterisation and clinical evaluation are less diffused than lower limbs evaluation where gait analysis is rather common. When dealing with upper limbs a set of critical problems have to be afforded. In walking analysis we know that the movement is cycled and repeatable, instead upper limb gestures are more complex principally because of lack of the periodicity. In this paper we present a protocol to face such problems and obtain an objective biomechanics evaluation of the upper limbs, with the particularity to be focused on a daily life gesture such as drinking. The experimental protocol is presented together with the parameter identified to characterise the movement. Some preliminary results are discussed with reference to a set of healthy and clinical subjects.
Squat biomechanics in weightlifting: foot attitude effects
Authors: Crenna Francesco , Battista Rossi Giovanni 
Published: November 2019

Abstract
Squat weight lift is a common exercise in physical training used both in weightlifters specific training and in general athletes for leg force increment. When weight load on subject shoulders is rather heavy as compared with full body weight, gesture biomechanics becomes critical, since injuries may occur when gesture is not controlled or performed in a wrong way. Experienced trainers are aware of such issues and give proper instructions to obtain best performance at a minimum injury risk. In this work a quantitative approach is presented, supported by biomechanical measurements to determine the effects on main articulations of different postures during the exercise. Preliminary results confirm good practices giving a quantitative indication of joints solicitations.
Comparing a compact hematology analyzer based on direct optical measurements using blue LED with the VCS reference technology for neutrophil differential count
Authors: Lorenzon V M , Costa Monteiro E 
Published: November 2019

Abstract
Technologies for the automated blood cell count have been evolving over the last decades. Hematology analyzers enable identifying blood elements, including leukocytes differential. In the bloodstream, the most abundant leukocyte, the neutrophil, presents multi-lobed nuclei, requiring, therefore, combined measurement principles for their detection and classification. Due to the lack of white blood cells’ certified reference materials or reference measurement method, it has been customary to evaluate the performance of new hematology analyzers by comparing them with traditionally available and well-consolidated systems. In 2015, a technology based on axial light loss using a blue LED, the Beckman Coulter DxH500, was launched. This hematology analyzer presents reduced cost, fewer chemical reagents, and a compact design. This work compares the performance of the DxH500 with an analyzer frequently employed in large-scale laboratory routine, the Beckman Coulter LH750, based on the well-established combination of volume (impedance), conductivity and light scatter principles. The study examined 310 paired samples taken out randomly from the routine of a general hospital laboratory. The analyses evaluated the correlation coefficient, p-value, and the linear regression equation. The equivalence of results provided by both analyzers for the characterization of neutrophils in the leukocyte population points to the performance adequacy of the new low-cost and portable technology, suitable for small-sized clinical laboratory’s routines.
Musical instruments for the measurement of autism sensory disorders
Authors: Benoit E , Perrin S , Donnadieu S , Dascalu C , Mauris G , Favory J , Dautremer C 
Published: November 2019

Abstract
The analysis of sensory disorders in children with autism is a long process based on the observation of children in a specific environment. It cannot be treated frequently and monitoring the evolution of sensory disorders is either impossible or limited to a period of more than one year. The objective of our study is to define and then use dedicated musical instruments to perceive the intensity of children’s responses to different stimuli in order to measure their sensory disorders.
Towards biological quantity theory for nominal property metrology in polyenzymatic devices with living cells
Authors: Belobrov P I , Evstrapov A A , Esimbekova E N , Denisov I A , Lukyanenko K A , Osipova E D , Yakimov A S 
Published: November 2019

Abstract
Here we discuss the concepts of “biological quantity” and “nominal property” within the framework of the problem of biological measurements based on new specific results of biological analysis using a microfluidic platform and chips developed by our team earlier. It was shown that based on different microfluidic platforms it is possible to develop chips with a polyenzymatic bioluminescent system NAD(P)H:FMN-oxidoreductase-luciferase (Red + Luc), which can be used in various areas of biological analysis. Thus, disposable microfluidic chips with Red + Luc system suitable for field and indoor use were developed using continuous flow microfluidic platform. The use of droplet-based microfluidic platform allowed to develop microfluidic chips with Red + Luc system for long-term continuous measurements of water samples, for example, in places of waste disposal by industrial enterprises. The reference for comparing different biological quantities with each other in the proposed system was a photodetector, which converted non-numeric values and nominal properties recorded by a biological module Red + Luc into numerical variables. Such a reference was implemented as a portable luminometer based on silicon photomultiplier. The results allow to perform other biological measurements and to start the discussion of modern biological concepts in the language of biological measures.
Metrologically coherent assessment for learning: what, why and how
Authors: Pey-Tee Oon Emily , Hoi-Ka U , Fisher Jr W P 
Published: November 2019

Abstract
Assessment for learning aims to improve learning by feeding back information on the attainment of intended learning objectives to students and teachers. In this form of assessment, the student acts as a measuring instrument and learning attainment is the quantity to be measured. Current practices in classroom assessment, unfortunately, often are not grounded and have been focused on total correct scores without reference to the evidence hidden within them concerning the attainment of learning objectives. Our goal in this study is to clarify what assessment for learning is, why it is important, and how it works in a metrologically coherent context of equated assessments administered from calibrated item banks. The main focus lies in how item content can be framed according to intended learning outcomes that are meaningfully interpreted using a construct map. An example involves empirical datasets of 283 secondary three students from two formative tests designed by two science teachers. Coherent formative assessment of this kind applies a scientific model that belongs to the same class metrologists consider as defining measurement. The results illuminate the potential for establishing item banks that enable teachers to more efficiently and effectively assess and improve the attainment of learning objectives across different cohorts of students in a common metric.
Coherence in measuring student evaluation of teaching: a new paradigm
Authors: Huang Fan , Pey-Tee Oon Emily , Fisher Jr W P 
Published: November 2019

Abstract
Student Evaluations of Teaching (SET) have been adopted worldwide as a standard practice to enhance teaching and learning quality. However, improvement efforts are threatened by various problems involving ordinal scores and interpretive frameworks restricted to individual item sets and uninformed by a well-defined invariant construct. In this study, an approach to framing SET items according to theory rather than personal or subjective decisions is described. A sample of 920 students from the University of Macau participating in this study provided responses to 42 SET items. Applying a scientific model of measurement, the data collected were analysed and interpreted. Justification between theoretical and measurement analysis informed the creation of a theoretical SET construct map. That map and the associated item hierarchy were used as reference sources for configuring SET reports and recommendations. A new coherent paradigm for SET documentation is proposed for further study.
Actual metrological and legal issues of non-destructive testing
Authors: Gogolinskii K V , Syasko V A 
Published: November 2019

Abstract
The article is devoted to analyzing problems of metrological support and legal regulation in the sphere of non-destructive testing (NDT). Differences between the measurement technique and NDT have been analyzed. The necessity to apply the principles of metrological traceability to the NDT technique, equipment and test pieces has been announced. It has been suggested to view NDT as multi-parameter measurements. An example of the reference measuring system for complex calibrations of metal coatings measures on metal bases to calibrate eddy-current thickness gages of coatings has been given.
Modelling and optimisation of design of non-conventional instrument transformers
Authors: Nikolić Bojan , Khan Sanowar 
Published: November 2019

Abstract
In this paper, we have proposed, modelled and optimised several designs of non-conventional instrument transformer (NCIT) for high voltage overhead transmission lines (400kV). We have discussed several parameters and investigated how they influence the sensitivity of our NCIT, consisting of magnetic shape memory (MSM) element, magnetic circuit and an LVDT (linear variable differential transformer). One of the most used conductors in these lines, 528-Al1/69-ST1A ACSR conductor (old code MOOSE), was modelled together with the MSM element and the magnetic circuit in ANSYS APDL. Based on the obtained results we have given suggestions on how NCIT could be designed taking into account a choice of the most appropriate material for this application. The way how the model was developed was presented as well as calculations of errors in the model in ANSYS APDL for electromagnetic problems.
The feasibility of using an international common reading progression to measure reading across languages: a case study of the Vietnamese language
Authors: Nguyen C 
Published: November 2019

Abstract
In the last few decades, student achievement in many countries has been assessed and reported against a developmental learning continuum which underpins the knowledge and skills being measured. There have been efforts to place students from different countries on the same scale. However, those efforts have often been limited to individual projects and countries. There has been no common framework and no common metric for assessments to be compared across countries and levels. Recently, the UNESCO Institute for Statistics (UIS) has worked with the Australian Council for Educational Research (ACER) to develop UIS reporting scales for reading and mathematics with the aim of enabling countries to examine and report using a common framework and common quality control. This paper presents the results of an evaluation of the feasibility of adapting and applying the UIS reporting framework to the reading of Vietnamese language.
Direct measurement of stationary objects’ dimensions with Michelson type incremental laser interferometer
Authors: Stejskal T , Dovica M , Ď uriš S , Ď urišová Z , Palenčár J 
Published: November 2019

Abstract
The paper deals with a design of an original length measuring equipment for a measurement by Michelson-type laser interferometer. Laser measuring operate on the principle of relative movement of two components, where one component is fitted with an interference unit and the other one with a reflector. Such system is capable of measuring the length of displacement post motion, however, it is unable to measure the length of a stationary object. Functionality of the measuring equipment is ensured by a measuring board and a ruler. At a relatively low additional cost, the measuring configuration is capable of measuring the lengths of motionless objects achieving the precision of laser. The paper describes the measurement methodology verified in an experiment. Expanding verification tests of the device may facilitate possible commercial production of such auxiliary device for the Michelson-type laser interferometer, which would make the symposium motto “The future glimmers long before it comes to be” sound especially true.
A seismocardiography system and a possibility of its use for diagnosis of internal organs diseases using seismocardiogram information analysis
Authors: Uspensky V M , Achildiev V M , Bedro N A , Soldatenkov V A , Gruzevich Y K , Evseeva Y N , Komarova M N , Levkovich A D 
Published: November 2019

Abstract
The work is devoted to the development of a cardioseismometer system for obtaining a seismocardiogram for informational analysis of seismocardiographic signals and diagnosis of internal organs diseases on their basis. The cardioseismometer system allows measuring angular velocity projections and the vector of apparent acceleration recorded on the chest due to the mechanical movement of the heart, calculation of heartbeat acceleration vector - magnitude and direction relative to the reference coordinate system. The most informative and available for high-precision measurement parameters of seismocardiographic signals are selected, which are compared to the parameters of the electrocardiograms measuring model used to diagnose diseases. The conclusion was made about the possibility of using the dynamics of the seismocardiographic signal main parameters for informational analysis to diagnose diseases of internal organs. Experimental research results are given.
Modelling IoT technology for a cargo port
Authors: Postolache O , Yang Y , Zhong M , Yao H , Yu F , Fu X , Mi C 
Published: November 2019

Abstract
A work on modelling Internet of Things architecture for cargo ports is described. The main things and their roles in a cargo port, different sensors and instrumentation that was used or might be used for sensing and control in a cargo port, and some examples of IoT technologies that might contribute for improving the safety of processes and the security of the port are presented. By increasing the accessibility and accuracy of relevant information, IoT technologies may increase efficiency and quality of services in cargo ports, the operational safety and security of the ports.
Problems and prospects of complex psychological phenomena measurement
Authors: Kostromina S , Gnedykh D 
Published: November 2019

Abstract
The article is dedicated to the key problems of complex psychological phenomena measurement: the difficulties of measurement systems correspondence in the evaluation of the psychological phenomenon by qualitative and quantitative measurement methods; the difficulties in the comparability of the measurement results in psychological phenomena studying. The problems that arise in the methodology of psychological science and in the organization of interdisciplinary research are discussed. In conclusion, the direction of solving the described problems aimed at joining efforts of psychologists and metrologists is proposed.
Calculations of anisotropic distribution function of fast particles in plasma of the Globus-M spherical tokamak using the NUBEAM code
Authors: Kiselev E O , Bakharev N N , Goncharov P R , Gusev V K , Khromov N A , Kurskiev G S , Melnik A D , Minaev V B , Miroshnikov I V , Patrov M I , Petrov Yu V , Sakharov N V , Schegolev P B , Telnova A Yu , Tokarev V A , Tolstyakov S Yu , Tukhmeneva E A 
Published: November 2019

Abstract
The results from calculations of the anisotropic fast particle distribution function in the Globus-M/M2 spherical tokamaks are presented. The calculations were performed using the NUEBAM code, the reasons for the anisotropy occurrence are discussed (injection geometry, low toroidal magnetic field and plasma current, presence of neutral particles). It is shown that the anisotropy decreases with increasing toroidal magnetic field and plasma current: the density of the slowed down fast ions with energies of E < 4 keV almost doubles and the averaged perpendicular velocity of fast ions increases.
Radial structure of quasi-coherent mode in ohmic plasma of the T-10 tokamak
Authors: Drabinskiy M A , Eliseev L G , Khabanov P O , Melnikov A V , Kharchev N K , Sergeev N S , Grashin S A 
Published: November 2019

Abstract
The paper presents the recent results from the quasi-coherent (QC) mode studies performed in the ohmic plasma of the T-10 tokamak (R = 1.5 m. a = 0.3 m, B
0 = 2.2 T, I
pl = 230 kA, and n
e ≈ 1⋅1019 m−3) using Heavy Ion Beam Probe diagnostics (HIBP). The radial distribution of the amplitude of the density perturbations caused by the QC-mode has two pronounced peaks (approximately 5 and 1.5 % at radii of 25–30 and 8–14 cm, respectively) with an intermediate zone of lower amplitude in between them (<1% at radii of 16–21 cm). The mean QC-mode frequency remains nearly constant within the studied region (75–80 kHz). For the edge plasma, the HIBP observations were confirmed by the Langmuir probe measurements.
Spontaneous drop of the Li-containing flake as a trigger of ITB-event in plasmas of the T-10 tokamak during simultaneous co+counter injection of EC waves
Authors: Neudatchin S V , Pimenov I S , Borschegovskiy A A , Kislov A Ya , Kuyanov A. Yu. 
Published: November 2019

Abstract
Various triggers of ITB-events (ITB-event is an abrupt and non-local reduction of the heat flux within a radius of ∼50% of the minor radius) have been previously found at the JT-60U, the T-10 tokamaks and the LHD stellarator. This short paper describes a new trigger of ITB-events discovered in the T-10 plasmas in experiments on simultaneous co+counter axial EC current drive performed using the X-wave with a frequency equal to the second ECR harmonic. In these experiments, the tungsten limiter and lithium wall coating were used. The ionization of atoms in the Li-containing flake, which occurs at the plasma edge, generally causes the rise of the electron temperature and density in the core of the plasma column. The electron heat flux reduces abruptly within the radial range of 0.2 < r/a < 0.8, just as it was at the LHD in experiments on the injection of small C8H8 pellets. The energy confinement time abruptly increases by ∼10%. After the transient phase, the ITB appears, which is located between the radii corresponding to the safety factors of q = 1 and q ≈ 1.4. Typically, the ITB lifetime is equal to the plasma energy lifetime. As far as we know, the triggering of ITB-events by the drop of Li-containing flake has been never reported in tokamaks and stellarators.
Probing ion trajectory simulations for the HIBP diagnostics at the T-15MD tokamak
Authors: Ilin A M , Khabanov P O , Melnikov A V 
Published: November 2019

Abstract
The paper presents the results of preliminary simulations of the Tl+ ion trajectories and detector grids for Heavy Ion Beam Probe (HIBP) diagnostics at the T-15MD tokamak. For these calculations, authors have developed the HIBP SOLVER software package using the Runge-Kutta method of the 4th order for solving the motion equation for the probing particles. Simulations have shown that the HIBP diagnostics at the T-15MD tokamak will allow measuring the entire radial profile of the plasma potential during one shot, including both the core and edge regions. The detector grid covers the most area of the vertical plasma cross section, so the two-dimensional potential distribution can be recovered. In the start regime (1 T, 1 MA), the beam energy will be below 300 keV, and in the standard regime (2 T, 2 MA), the beam energy will amount to 1000 keV.