Artigos de revistas: "Roman measurement"

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Musvoto, Saratiel Weszerai. "Introducing The Representational Measurement Project In Accounting". Journal of Applied Business Research (JABR) 27, n.º 5 (9 de agosto de 2011): 97. http://dx.doi.org/10.19030/jabr.v27i5.5596.

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This study introduces a representational measurement (a theory that establishes measurement in the social sciences) perspective to the accounting concept of measurement. Accounting studies have long sought to establish foundations (theory) of measurement in accounting without success. This is because the accounting concept of measurement is based on the axioms of quantity which ultimately result in the classical theory of measurement and are not suitable for social science disciplines such as accounting, but rather for the natural sciences. The measurement of attributes of social science phenomena does not give rise to a natural concatenation operation, which is pivotal to invoking a theoretical concept of an absolute continuous quantity that forms the basis of the classical theory of measurement. As a result, this study suggests criteria whose development might eventually lead to the construction of representational measurements in accounting.

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Alimonti, Claudio, Valerio Baiocchi, Giorgia Bonanotte e Gábor Molnár. "Roman Aqueduct Flow Estimation Using Geomatic Measurement". ISPRS International Journal of Geo-Information 10, n.º 6 (25 de maio de 2021): 360. http://dx.doi.org/10.3390/ijgi10060360.

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The aqueducts built by the ancient Romans are among the most impressive evidence of their engineering skills. The water inside the aqueducts was transported for kilometers, exploiting only the slight but constant differences in altitude throughout the route. To keep the differences in height constant, the aqueducts could proceed underground or aboveground on well-known arched structures that supported lead, ceramic or stone pipes. In order to reconstruct the characteristics of these structures, it is necessary to carry out an accurate survey of the orthometric heights, and therefore the most suitable technology is geometric levelling. In this case, however, it is not applicable, and therefore here we propose an alternative methodology. The final goal of this work was to estimate the flow of some sectors of these aqueducts preserved in the area south of the city of Rome. This has two main purposes: The first is to reconstruct the flow rate of these aqueducts for historical studies; the second is to check how much the orthometric heights have changed over the centuries, in order to reconstruct the movements from a geophysical and geodynamic point of view. The latter analysis will be developed in a following phase of this research. For this purpose, a high-precision geomatic survey was carried out in the area under study, partly retracing a survey already carried out in 1917 whose purpose and methodologies are not known. The area has been affected by a gradual subsidence over centuries, including since 1917. The observed sections of the aqueducts showed average inclinations, slightly lower than the 2 per thousand that is reported in the literature for similar aqueducts. The measurements carried out allowed the flow rate of the two specific aqueducts to be estimated more accurately, both as they were originally and in the presence of deposits that have accumulated during the years of use of the aqueducts. The reconstruction of the initial geometry will later be used as a reference to estimate how much the geodynamic deformations of the area have deformed the aqueducts themselves.

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Grasby, Richard. "Grants in aid of research: Roman inscriptions — measurement and making". Papers of the British School at Rome 64 (novembro de 1996): 287. http://dx.doi.org/10.1017/s0068246200010436.

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Sukaj, Silvana, Giuseppe Ciaburro, Gino Iannace, Ilaria Lombardi e Amelia Trematerra. "The Acoustics of the Benevento Roman Theatre". Buildings 11, n.º 5 (19 de maio de 2021): 212. http://dx.doi.org/10.3390/buildings11050212.

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During the Imperial Roman period, thousands of theatres were built. The theatres have three principal elements: the scene building (actor position), the orchestra and the cavea (spectator seating). The theatres were built without a roof, so they were open-air spaces. The theatres were abandoned afterward the barbarian invasions, and during the Middle Ages, homes were built inside the cavea. The theatres were rediscovered during the Renaissance period. Today, ancient theatres are the center of cultural events and are used for various kinds of shows. This work discussed the acoustics of the Roman theatre of Benevento, which was built during the Imperial Age. The theatre was destroyed after the barbaric invasion and it was rebuilt in the first half of the 1900s. The theatre was opened in 1957, and today it is the center of social and cultural activities. Acoustic measurements were carried out according to ISO 3382 standard, placing an omnidirectional sound source on the scene building and in the orchestra, with the measurement microphones along three directions in the cavea. The acoustic characteristics in various seating areas of the cavea were evaluated. Therefore, it possible to understand in which sectors of the theatre the acoustic characteristics are optimal for different types of theatrical performances.

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Hussein, O., W. Z. Wan Hasan, A. Che Soh, H. Jafaar, H. R. Ramli, S. P. Ang e Zainidi Haji Abdul Hamid. "In-sole plantar pressure device with optimization measurement techniques". Indonesian Journal of Electrical Engineering and Computer Science 17, n.º 2 (1 de fevereiro de 2020): 739. http://dx.doi.org/10.11591/ijeecs.v17.i2.pp739-749.

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Doctors and clinicians rely on accurate underfoot pressure data to perform diagnosis of foot diseases. In sole pressure measurement systems are designed to provide such data but its implementation suffers from certain constraints such as the need for a spacer to be placed on the sensor when taking measurements and the need for multiple calibrations due to the fact that the sensor parameters tend to change without it. In this work, we proposed an optimization technique to address these limitations. The results obtained from testing indicate that the proposed device performed measurement of plantar pressure effectively. Also, the calculation of body weight using the proposed optimization technique is improved from 5.07% to 9.06%. For validation, the results are compared with the measurements from a commercial plantar pressure device (EMED system) as benchmark.

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Girolamo, B. Di. "Luminosity measurement at ATLAS with Roman Pots and scintillating fibre detectors". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 581, n.º 1-2 (outubro de 2007): 526–30. http://dx.doi.org/10.1016/j.nima.2007.08.041.

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Baiocchi, V., C. Alimonti, G. Bonanotte e G. Molnar. "Geomatic measurement of “New Aniene” and “Claudia” roman aqueducts for flows estimation". IOP Conference Series: Materials Science and Engineering 949 (11 de novembro de 2020): 012078. http://dx.doi.org/10.1088/1757-899x/949/1/012078.

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Troxel, M. A., H. Long, C. M. Hirata, A. Choi, M. Jarvis, R. Mandelbaum, K. Wang, M. Yamamoto, S. Hemmati e P. Capak. "A synthetic Roman Space Telescope High-Latitude Imaging Survey: simulation suite and the impact of wavefront errors on weak gravitational lensing". Monthly Notices of the Royal Astronomical Society 501, n.º 2 (24 de novembro de 2020): 2044–70. http://dx.doi.org/10.1093/mnras/staa3658.

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ABSTRACT The Nancy Grace Roman Space Telescope (Roman) mission is expected to launch in the mid-2020s. Its weak lensing program is designed to enable unprecedented systematics control in photometric measurements, including shear recovery, point spread function (PSF) correction, and photometric calibration. This will enable exquisite weak lensing science and allow us to adjust to and reliably contribute to the cosmological landscape after the initial years of observations from other concurrent Stage IV dark energy experiments. This potential requires equally careful planning and requirements validation as the mission prepares to enter its construction phase. We present a suite of image simulations based on galsim that are used to construct a complex, synthetic Roman weak lensing survey that incorporates realistic input galaxies and stars, relevant detector non-idealities, and the current reference 5-yr Roman survey strategy. We present a first study to empirically validate the existing Roman weak lensing requirements flowdown using a suite of 12 matched image simulations, each representing a different perturbation to the wavefront or image motion model. These are chosen to induce a range of potential static and low- and high-frequency time-dependent PSF model errors. We analyse the measured shapes of galaxies from each of these simulations and compare them to a reference, fiducial simulation to infer the response of the shape measurement to each of these modes in the wavefront model. We then compare this to existing analytic flowdown requirements, and find general agreement between the empirically derived response and that predicted by the analytic model.

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Xu, Zijie, Hua Zhang, Binjie Fu, Sheikh Ibrahimrashid Mohamed, Jian Zhang e Aiguo Zhou. "Tibial Tubercle–Roman Arch Distance: A New Measurement of Patellar Dislocation and Indication of Tibial Tubercle Osteotomy". Orthopaedic Journal of Sports Medicine 8, n.º 4 (1 de abril de 2020): 232596712091487. http://dx.doi.org/10.1177/2325967120914872.

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Background: The surgical indication for tibial tubercle osteotomy (TTO) has been based on a tibial tubercle–trochlear groove (TT-TG) distance of 20 mm or greater in patients with patellar dislocation. However, the measurement of this parameter is less reliable in patients with trochlear dysplasia. Hypothesis: The novel measurement of tibial tubercle–Roman arch (TT-RA) distance would be a reliable parameter for identifying the relative position of the tibial tubercle in patients with patellar dislocation, especially those with trochlear dysplasia. Study Design: Cohort study (diagnosis); Level of evidence, 2. Methods: A total of 56 patients with a diagnosis of patellar dislocation and 60 volunteers (60 knee joints) without a history of lower extremity pain or injury were included in our study. The TT-RA distance, TT-TG distance, and some femoral anatomic parameters were assessed by use of computed tomography. The measurements were performed by a radiologist and an orthopaedic surgeon in a blinded and randomized fashion. The difference in each parameter between the study and control groups was analyzed through use of an unpaired t test. Receiver operating characteristic curve analysis was performed to evaluate the discriminatory capacity of the included parameters. The cutoff values of the included measurements with specificity and sensitivity were calculated. In addition, the TT-TG distance and TT-RA distance were analyzed using the Dejour classification to evaluate the intraclass correlation coefficient (ICC) of each parameter in different types of femoral trochlea. Result: A significant difference for TT-RA distance was found between the study group (23.24 ± 4.41 mm) and control group (19.15 ± 4.24 mm) ( P < .001). The TT-RA distance had an area under the curve of 0.757. At a value greater than 23.74 mm, TT-RA distance had 53.57% sensitivity and 88.33% specificity for patellar dislocation. The ICCs of TT-RA distance measurements were excellent in all Dejour classifications (>0.939), whereas the ICCs of TT-TG distance measurements were relatively lower than the ICCs of TT-RA distance measurements. According to the data from included healthy individuals, the pathological TT-RA distance threshold was 26 mm. Conclusion: Compared with TT-TG distance, the TT-RA distance is a more reliable parameter for identifying the relative position of the tibial tubercle in patients with trochlear dysplasia. For patients with a TT-RA distance greater than 26 mm, surgery should be considered to correct the malposition of the tibial tubercle.

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Becchetti, Matteo, Roberto Marsili, Ferdinando Cannella e Alberto Garinei. "A new system for the measurement of gripping force based on scattering". ACTA IMEKO 6, n.º 4 (28 de dezembro de 2017): 100. http://dx.doi.org/10.21014/acta_imeko.v6i4.481.

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The measurement of contact pressure of human fingers is very important to understand human perceptual mechanisms, that is the main goal of most of the neuroscientific studies. It may also lead to a correct development of tactile devices and haptic systems, as they are intended to convey controllable and effective stimuli.<span style="font-family: 'Garamond','serif'; font-size: 10pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-GB; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-GB">In this work, an optical measurement system based on Frustrated Total Internal Reflection (FTIR) is proposed for the measurement of the pressure distribution on the contact area between a human finger and a flat surface. The feasibility study performed shows that the tested sensor can be effectively used for the measurement of the fingertip contact pressure both on static and dynamic conditions.

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Fiorillo, Fausta, e Corinna Rossi. "3D survey and metric analysis of the Late Roman Fort of Umm al-Dabadib (Egypt)". ACTA IMEKO 7, n.º 3 (24 de outubro de 2018): 57. http://dx.doi.org/10.21014/acta_imeko.v7i3.590.

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This paper presents a metric analysis and interpretation of the 3D survey of the Late Roman Fort of Umm al-Dabadib (Kharga Oasis, Egypt). The aim is to verify if a modular measure was used in the construction of the Fort and whether this was congruent with Roman or Egyptian units of measurement. Horizontal and vertical sections were extracted from the 3D model of the Fort derived from a close-range photogrammetry survey method. The resulting technical drawings were used for the study and interpretation of the dimensional patterns of the Fort that revealed the correspondence of the units of measurement of the building to Egyptian Reformed Cubit. This research is part of the project LIFE (Living in a Fringe Environment), funded by the ERC CoGrant 68167.

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Gao, Sitian, Mingzhen Lu, Wei Li, Yushu Shi e Qi Li. "Metrological atomic force microscope and traceable measurement of nano-dimension structures". ACTA IMEKO 2, n.º 1 (16 de agosto de 2013): 12. http://dx.doi.org/10.21014/acta_imeko.v2i1.41.

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<span style="font-family: "Times New Roman"; font-size: 10pt; mso-fareast-font-family: å®‹ä½“; mso-ansi-language: EN-GB; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt;" lang="EN-GB">The quantity assurance in semiconductor industry development requires dimensional measurement with nanometer accuracy. A metrological AFM is designed to establish a traceable standard with nanometer uncertainty. The principle and design of the instrument is introduced in this paper. The displacement of the sample is traced to the SI unit by interferometers. The metrological AFM is applied to step height and line width measurement. The results are compared with optical instrument and profilometer. The metrological AFM is used to step height measurement in an international comparison and the result shows an uncertainty less than <span style="font-family: "Times New Roman"; font-size: 10pt; mso-fareast-font-family: å®‹ä½“; mso-ansi-language: EN-CA; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt;" lang="EN-CA">2 nm. The application of metrological AFM in line width and pitch are also introduced.

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Shcheglov, Dmitry A. "The so-called ‚Itinerary Stade‘ and the Accuracy of Eratosthenes' Measurement of the Earth". Klio 100, n.º 1 (18 de julho de 2018): 153–77. http://dx.doi.org/10.1515/klio-2018-0005.

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Summary This paper presents a new argument against the widely accepted view that Eratosthenes and some other Greek authors of the pre-Roman period measured distances in special stades that were much shorter than the ‚common‘ stade of 185 m attested by the majority of sources.

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Wesnes, Keith A., Brian K. Saxby, Steve Satek, Stephanie Ounpuu e Gary A. Ford. "P4-089: Measurement of episodic memory using word tasks in Roman and non-Roman alphabet languages: Validation from a multicentre clinical trial". Alzheimer's & Dementia 5, n.º 4S_Part_15 (julho de 2009): P457. http://dx.doi.org/10.1016/j.jalz.2009.04.858.

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Scrimnger-Christian, Charmaine, e Saratiel Wedzerai Musvoto. "Role Of Probability Biclassification In Accounting And Finance Random Variable Representations". Journal of Applied Business Research (JABR) 28, n.º 1 (21 de dezembro de 2011): 59. http://dx.doi.org/10.19030/jabr.v28i1.6684.

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The concept of value in accounting has been generalized by various authors to a large variety of relations in both accounting and finance. For example, the basis for the preparation of the financial statements in accounting and the foundations for the determination of the return on a security in finance are based on the concept of value measurement. However, there are cases in which applications of the concept of value measurement breaks down, such as in predicting the long-run behavior of accounting and finance phenomena classified as random variables and in applying deterministic models to accounting and finance models. In this study, the principles of probability biclassification and random utility theory are used to rectify the shortcomings of generalizing the concept of value measurement to include activities to understand the long-run behavior of random variables. This study closes with a discussion on the compatibility of the intentionality structure of acts of knowledge in accounting and finance with statistical concepts on random variables.

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Yuan, Herong, e Jingbin Song. "Design of Motor Control System Based on Wireless Sensor Network". International Journal of Online Engineering (iJOE) 14, n.º 10 (26 de outubro de 2018): 140. http://dx.doi.org/10.3991/ijoe.v14i10.9311.

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More and more modern devices are controlled by miniature special motors. But many existing miniature special motors are using mostly independent test methods through wire communication. In this paper, starting from the requirements of motor testing and the situation of workshop environment, a motor measurement and control system based on wireless sensor network is proposed and designed. This paper elaborates the relevant technical analysis and specific implementation of TT & C module, wireless terminal, wireless router, wireless gateway and host computer measurement and control module. At last, the test function and effect of the system are explained according to the test samples. The reliability and stability of the system are verified through reliability analysis.

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Stone, Mark H. "The Cubit: A History and Measurement Commentary". Journal of Anthropology 2014 (30 de janeiro de 2014): 1–11. http://dx.doi.org/10.1155/2014/489757.

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Historical dimensions for the cubit are provided by scripture and pyramid documentation. Additional dimensions from the Middle East are found in other early documents. Two major dimensions emerge from a history of the cubit. The first is the anthropological or short cubit, and the second is the architectual or long cubit. The wide geographical area and long chronological period suggest that cubit dimensions varied over time and geographic area. Greek and Roman conquests led to standardization. More recent dimensions are provided from a study by Francis Galton based upon his investigations into anthropometry. The subjects for Galton’s study and those of several other investigators lacked adequate sample descriptions for producing a satisfactory cubit/forearm dimension. This finding is not surprising given the demise of the cubit in today’s world. Contemporary dimensions from military and civilian anthropometry for the forearm and hand allow comparison to the ancient unit. Although there appears no pressing need for a forearm-hand/cubit dimension, the half-yard or half-meter unit seems a useful one that could see more application.

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SCHMIDT, MANFRED G. "A GADIBUS ROMAM MYTH AND REALITY OF AN ANCIENT ROUTE". Bulletin of the Institute of Classical Studies 54, n.º 2 (1 de dezembro de 2011): 71–86. http://dx.doi.org/10.1111/j.2041-5370.2011.00025.x.

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Abstract The four goblets from Vicarello, which show copies of a Roman itinerary from Gades to Rome engraved on their outside (CIL XI 3281–3284), are usually interpreted as souvenirs brought to Vicarello by Spaniards as votive offerings after a long journey. In this article it is argued that these itineraries (just like the one in Metrodorus’ poem, Anth. Pal. XIV 121) are representing the legendary Via Herculis; they are to be understood as a Roman attempt to grasp the immense mythical distance by means of exact measurement. The goblets should be dated to the 4th century AD (goblet IV being the oldest, from the very beginning of the century), not to Augustan or Trajan times.

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Gao, Guohong, Feng Wei e Jianping Wang. "Development and Application of a New Positioning Algorithm for Wireless Sensor Networks". International Journal of Online Engineering (iJOE) 14, n.º 10 (26 de outubro de 2018): 80. http://dx.doi.org/10.3991/ijoe.v14i10.9305.

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This paper aims to create a desirable positioning method for nodes in wireless sensor networks (WSNs). For this purpose, a source node positioning algorithm was developed based on time-of-arrival (TOA), in view of the nonlinear correlation between the measured values and unknown parameters in the observation equation of TOA source position. Several experiments were carried out to evaluate the performance of the proposed algorithm in terms of time measurement error, computing complexity, location error and Cramér–Rao lower bound (CRLB). The results show that the CRLB acquired by this algorithm can be used for WSN node positioning, provided that the independent zero mean Gauss measurement error is sufficiently small. The research findings lay a solid technical basis for optimal management, load balance, efficient routing, and automatic topology control of WSNs.

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Ponechal, Radoslav, Peter Krušinský, Peter Pisca e Renáta Korenková. "Simulation and measurement of microclimate in roof space on a gothic truss construction". MATEC Web of Conferences 196 (2018): 02044. http://dx.doi.org/10.1051/matecconf/201819602044.

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Research in the field of historical trusses has long been performed at the workplace of the authors. In each truss, there was recorded the general technical state and some even monitoring and analysing microclimate with the aim of specifying environmental conditions that would be suitable for preservation of a historical structure. The article shows the results of temperature and relative humidity measurement in roof space of the Roman-Catholic church in the historical centre of the village of Bela-Dulice as well as result of thermodynamic simulation of this space. The selected measurement was compared to the simulation results.

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Antchev, G., P. Aspell, I. Atanassov, V. Avati, J. Baechler, V. Berardi, M. Berretti et al. "LHC optics measurement with proton tracks detected by the Roman pots of the TOTEM experiment". New Journal of Physics 16, n.º 10 (28 de outubro de 2014): 103041. http://dx.doi.org/10.1088/1367-2630/16/10/103041.

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Pleninger, Stanislav. "The Testing of MLAT Method Application by means of Usage low-cost ADS-B Receivers". MAD - Magazine of Aviation Development 2, n.º 7 (15 de janeiro de 2014): 8. http://dx.doi.org/10.14311/mad.2014.07.02.

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The paper describes the process and results achieved during the measurement which was realized with the aim of identify an applicability of MLAT (Multilateration) method by means of using so-called “low-cost” ADS-B receivers. In terms of measurement, ADS-B receivers without GPS time synchronization module was utilized thus specific time synchronization method was required to implement.

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Barone, Germana, Paolo Mazzoleni, Simona Raneri, Jan Jehlička, Peter Vandenabeele, Pier Paolo Lottici, Gioconda Lamagna, Angela Maria Manenti e Danilo Bersani. "Raman Investigation of Precious Jewelry Collections Preserved in Paolo Orsi Regional Museum (Siracusa, Sicily) Using Portable Equipment". Applied Spectroscopy 70, n.º 9 (20 de agosto de 2016): 1420–31. http://dx.doi.org/10.1177/0003702816662592.

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This work is a part of a large scientific project aimed at highlighting the potential of portable Raman equipment in characterizing jewelry materials preserved in museums, carried out in collaboration with gemologists and archeologists. In detail, we report the results of a measurement campaign performed for the study of gems and jewels preserved in the well-known Medagliere section at the Paolo Orsi Regional Museum of Siracusa (Sicily). The studied materials consist of exquisite examples of engraved loose gems and really rare examples of Hellenistic–Roman jewels, mainly coming from relevant Sicilian archaeological sites. Portable Raman measurements have been carried out using two instruments equipped with different excitation wavelengths. The obtained results have allowed for a complete characterization of the studied gemological materials, also suggesting sometimes misclassification for some valuable objects and gems.

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Ricci, Paola, Carmina Sirignano, Simona Altieri, Mariangela Pistillo, Alfonso Santoriello e Carmine Lubritto. "Paestum dietary habits during the Imperial period: archaeological records and stable isotope measurement". ACTA IMEKO 5, n.º 2 (1 de setembro de 2016): 26. http://dx.doi.org/10.21014/acta_imeko.v5i2.334.

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In historical contexts, analyses of carbon and nitrogen stable isotopes can be useful to answer different question on dietary behavior and to crosscheck information, drawn from texts and classical archaeological investigations. In this study the Isotope Ratio Mass Spectrometry (IRMS) facility installed at the IRMS-SUN Laboratory of the Second University of Naples is presented. Moreover, results coming from application of stable isotope analyses to bone collagen extracted from human remains of the necropolis of “Porta Sirena” in Paestum will be discussed. Finally, a combined analyses of archaeological and historical record and stable isotope measurements permits to expand our knowledge on diet in Roman Paestum.

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Bucci, Giovanna. "Late Roman Forest in the Delta of the River Po (Italy): Remote Sensing and 3D Maps Computation for Palaeoenvironmental Reconstruction". Heritage 3, n.º 3 (13 de julho de 2020): 782–95. http://dx.doi.org/10.3390/heritage3030043.

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Literary and historical sources provide information about Late Roman forests in the Delta of the River Po, in the district of Ferrara (Italy), between Vicus Aventiae (Voghenza), Sandalo, Gambulaga, Caput Gauri (Codigoro) and Castrum Cumiacli (Comacchio). Toponymy, archaeological excavations and geoarchaeological studies support the palaeoenvironmental reconstruction of this land. In this work, after a brief examination of the ancient texts, we are going to introduce some new data concerning archaeobotanical evidence, detected by remote sensing in combination with direct surveys (on land and underwater). On the technical side, we are going to present a geomatic application for underwater measurements of ancient trunks related to discoveries in the palaeo-watercourses of the River Po (geomatic measurements, thanks to remote sensing surveys, allows us to have detailed length and diameters of trunks and trees, which are not always visible and detectable while diving) together with some satellite elevation measurement of the river banks and 3D map supported by geocomputation. Thanks to botanical data, we are able to illustrate the local context of the paleoenvironmental/archaeological sites, offering a reconstruction of the landscape and of the use of the wood.

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Yang, Jingjing, Zhenyu Feng, Xuchao Ma e Xiao Zhang. "Indoor Positioning Method Based on Wireless Signal". International Journal of Online Engineering (iJOE) 14, n.º 10 (26 de outubro de 2018): 53. http://dx.doi.org/10.3991/ijoe.v14i10.9303.

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In view of the problems of traditional wireless indoor positioning technologies such as errors and a low positioning accuracy that cannot reach the application level required by hospital indoor positioning, this study proposes a hospital indoor positioning method based on wireless signals. This study firstly analyzes the principles of hospital indoor positioning, verifies the reliability and accuracy of the collected data using Gaussian distribution, P-P plot and Q-Q plot, and finally analyzes the collected data using the least square fitting algorithm to obtain a fitting wave attenuation model, which is then applied to the indoor positioning system. Experiments show that this method can reduce the error of indoor positioning in hospitals, and improve the repeatability and measurement accuracy of indoor positioning in hospitals.

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Kannawadi, Arun, Erik Rosenberg e Henk Hoekstra. "Mitigating the effects of undersampling in weak lensing shear estimation with metacalibration". Monthly Notices of the Royal Astronomical Society 502, n.º 3 (29 de janeiro de 2021): 4048–63. http://dx.doi.org/10.1093/mnras/stab211.

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ABSTRACT metacalibration is a state-of-the-art technique for measuring weak gravitational lensing shear from well-sampled galaxy images. We investigate the accuracy of shear measured with metacalibration from fitting elliptical Gaussians to undersampled galaxy images. In this case, metacalibration introduces aliasing effects leading to an ensemble multiplicative shear bias about 0.01 for Euclid and even larger for the Roman Space Telescope, well exceeding the missions’ requirements. We find that this aliasing bias can be mitigated by computing shapes from weighted moments with wider Gaussians as weight functions, thereby trading bias for a slight increase in variance of the measurements. We show that this approach is robust to the point-spread function in consideration and meets the stringent requirements of Euclid for galaxies with moderate to high signal-to-noise ratios. We therefore advocate metacalibration as a viable shear measurement option for weak lensing from upcoming space missions.

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Anderson,, James C. "Anachronism in the Roman Architecture of Gaul: The Date of the Maison Carrée at Nîmes". Journal of the Society of Architectural Historians 60, n.º 1 (1 de março de 2001): 68–79. http://dx.doi.org/10.2307/991679.

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The Maison Carrée is dated to the reign of Augustus primarily from its dedicatory inscription. However, no text of the inscription remains in situ; only clamp holes, without countersunk letter patterns, attest to what letter may have belonged where. The patterns are more or less consistent with the various restorations proposed for them; none is definite, secure, or proven. The dating of the temple cannot be based on such a phantom inscription, which provides no chronological evidence whatsoever, as has also been shown for the arch at Orange and the Roman temple at Vienne. The basic unit of measurement used in the ground plan of the Maison Carrée is the pes Drusianus, otherwise not securely attested prior to the early second century A. D. Use of this measurement module suggests a date at least a century after Augustus's reign. Similar problems arise in analyzing the proportions, Corinthian order, and decoration of the temple; all such problems are resolved or relieved by assigning the temple as we know it to a second-century A. D. restoration. Historical and archaeological evidence suggests that a restoration of an Augustan temple at Nîmes during the first half of the second century A. D., possibly in the reign of Hadrian or of Antoninus Pius, with the text of its earlier inscription reset on the façade, may be more consistent with the extant remains of the Maison Carrée.

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Lo Brutto, Mauro, e Gino Dardanelli. "Vision metrology and Structure from Motion for archaeological heritage 3D reconstruction: a Case Study of various Roman mosaics". ACTA IMEKO 6, n.º 3 (27 de setembro de 2017): 35. http://dx.doi.org/10.21014/acta_imeko.v6i3.458.

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Vision metrology and computer vision can be successfully used for archaeological heritage 3D reconstruction in very high precision 3D measurement projects. Of those archaeological objects requiring very accurate measurements (<1 mm), ancient mosaics comprise some of the most important. The aim of this paper is to assess the photogrammetric/computer vision approach in a vision metrology context as part of a 3D mosaics survey. In order to evaluate the optimal photogrammetric/computer vision workflow in this work, three different surveys were performed on three mosaics of different sizes and locations. Two of these are stored at the Antonino Salinas Regional Archaeological Museum in Palermo (Italy) and the other is located at the Baglio Anselmi Regional Archaeological Museum in Marsala (Italy). The mosaics survey was undertaken in order to obtain a very detailed 3D model and a full-scale ortho-image (scale 1:1), which would be useful for documentation and restoration processes. The research involved an evaluation of the potential and the related issues of the photogrammetric/computer vision approach for 3D mosaic documentation, particularly regarding the issue of camera calibration.

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Tabbagh, Alain. "Applications and advantages of the Slingram electromagnetic method for archaeological prospecting". GEOPHYSICS 51, n.º 3 (março de 1986): 576–84. http://dx.doi.org/10.1190/1.1442112.

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The electromagnetic Slingram method can provide three types of information simultaneously: (1) the apparent resistivity of the ground; (2) its apparent susceptibility; and (3) the characteristic signatures of buried metallic objects. To build an apparatus with these three measurement capabilities requires an appropriate choice of parameters, including frequency, coil separation, and coil orientation as well as calculations which take into account the electrical resistivity and the magnetic susceptibility of the ground. The value of the Slingram method for archaeological applications is shown by two examples: (1) a Gallo‐Roman pottery workshop investigated with measurements of the apparent susceptibility using a reduced sampling wide mesh grid technique; and (2) the study of a Bronze hoard site located in a marsh. Capabilities of the Slingram method may be improved by further study of an apparatus using several receivers which would increase the depth of investigation. Use of several frequencies would overcome difficulties related to resolving the magnetic quadrature susceptibility.

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Khadour, Tammam, Michel Al Saba e Louay Saleh. "Improving bearings-only target state estimation tracking problem by using adaptive and nonlinear kalman algorithms". Indonesian Journal of Electrical Engineering and Computer Science 15, n.º 1 (1 de julho de 2019): 190. http://dx.doi.org/10.11591/ijeecs.v15.i1.pp190-198.

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Finding the best estimate of the process state from noisy data is the main problem in tracking systems, many efforts and researches have been done to remove this noise. More useful information about the target’s state can be extracted from observations by using a more appropriate model for the target’s motion or using additional sensors. In this paper, we will introduce two methods to improve the estimation of bearing-only target tracking problem in two dimensions (2D). The first method is by adding a third sensor and making a good alignment of those sensors, and at the same time an extended Kalman filter (EKF), unscented Kalman filter (UKF) and cubature Kalman filter (CKF) are implemented. The second method is by applying an adaptive nonlinear Kalman filter (ANKF) for two sensors to solve the problem of measurement variance uncertainty.

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Sitnik, Robert, Maciej Karaszewski, Wojciech Załuski e Eryk Bunsch. "3DMADMAC|AUTOMATED: synergistic hardware and software solution for automated 3D digitization of cultural heritage objects". Geoinformatics FCE CTU 6 (21 de dezembro de 2011): 323–29. http://dx.doi.org/10.14311/gi.6.40.

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In this article a fully automated 3D shape measurement system and data processing algorithms are presented. Main purpose of this system is to automatically (without any user intervention) and rapidly (at least ten times faster than manual measurement) digitize whole object’s surface with some limitations to its properties: maximum measurement volume is described as a cylinder with 2,8m height and 0,6m radius, maximum object's weight is 2 tons. Measurement head is automatically calibrated by the system for chosen working volume (from 120mm x 80mm x 60mm and ends up to 1,2m x 0,8m x 0,6m). Positioning of measurement head in relation to measured object is realized by computer-controlled manipulator. The system is equipped with two independent collision detection modules to prevent damaging measured object with moving sensor’s head. Measurement process is divided into three steps. First step is used for locating any part of object’s surface in assumed measurement volume. Second step is related to calculation of "next best view" position of measurement head on the base of existing 3D scans. Finally small holes in measured 3D surface are detected and measured. All 3D data processing (filtering, ICP based fitting and final views integration) is performed automatically. Final 3D model is created on the base of user specified parameters like accuracy of surface representation and/or density of surface sampling. In the last section of the paper, exemplary measurement result of two objects: biscuit (from the collection of Museum Palace at Wilanów) and Roman votive altar (Lower Moesia, II-III AD) are presented.

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Celauro, A., M. A. Marsella, P. J. V. D’Aranno, A. Maass, J. A. Palenzuela Baena, J. F. Guerrero Tello e I. Moriero. "ANCIENT MINING LANDSCAPES AND HABITATIVE SCENERIES IN THE URBAN AREA OF CENTOCELLE: GEOMATIC APPLICATIONS FOR THEIR IDENTIFICATION, MEASUREMENT, DOCUMENTATION AND MONITORING". ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W11 (4 de maio de 2019): 403–10. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w11-403-2019.

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Abstract. This study, focused on the Archaeological Park of Centocelle, was carried out to test the functionality of different geomatic products for the identification and monitoring of complex archaeological evidences in urban areas. The method proposes a better knowledge of the archaeological context as a tool to favour a better protection, allowing the establishment of limits to urban enlargement in areas of respect. The test area is chosen because of the combined presence of hypogeal evidences related to Roman and pre-Roman exploitation of local litotypes and for the dense presence of archaeological vestiges at its surface, related to the inhabitation function of the zone in a period contemporaneous to the beginning of the quarrying activities. The methods used are the digital photogrammetry, 3D modelling, remote sensing interpretation and digital cartography. The protocol is then customized for the peculiarities of the area under study, considering both the underground structures and the ones at the surface. Archaeological features are identified by processing optical and SAR dataset to enhance the contrast of archaeological features from the background. Historical and recent DSM have been then compared to evaluate the evolutions of local topography. Concerning the study of the subterranean quarrying system in the area, a 3D model of one gallery was produced, with the aim to understand the type of ancient exploitation. A DTM of the toolmarks was then produced to understand the technological skills used for the exploitation of the local tuff and used as an indirect proof for chronological interpretation. A final trial of PSInSAR was addressed to test the method for monitoring the hypogeal levels. Several field prospections were executed, in order to first set the method properly and then validate the results.

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Pánisová, Jaroslava, e Roman Pašteka. "The use of microgravity technique in archaeology: A case study from the St. Nicolas Church in Pukanec, Slovakia". Contributions to Geophysics and Geodesy 39, n.º 3 (1 de janeiro de 2009): 237–54. http://dx.doi.org/10.2478/v10126-009-0009-1.

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The use of microgravity technique in archaeology: A case study from the St. Nicolas Church in Pukanec, SlovakiaThe detection of subsurface cavities, such as crypts, cellars and tunnels, in churches and castles belongs to successful applications of the employment of surface gravity measurement techniques in archaeo-prospecting. The old historic building exploration requires using of non-invasive methods, and hence the microgravity technique is a proper candidate for this task. On a case study from the Roman-Catholic Church of St. Nicolas in the town Pukanec the results of using microgravity for detection and delineation of local density variations caused by a near-surface void are shown. The acquired negative anomaly in the residual Bouguer anomalies field suggested the presence of a possible void feature. Euler deconvolution and 3D modelling were used to estimate the depth and shape of the anomalous source. Additionally, measurements of the vertical gravity gradient on several stations were performed. We tested how the use of a downward continuation of gravity, utilizing the real vertical gravity gradient, influences the shape and amplitude of the final Bouguer anomaly map.

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Kusiak, Jarosław, Mariusz Rychter e Marta Stasiak-Cyran. "Attempts at thermoluminescence dating of fired materials from the Przeworsk Culture settlements". Geochronometria 38, n.º 4 (1 de dezembro de 2011): 359–68. http://dx.doi.org/10.2478/s13386-011-0026-5.

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AbstractThe thermoluminescence (TL) dating method has a significant measurement error margin reaching almost 10%. Due to this fact it could be considered as little effective in case of such sites from the Roman period as burial grounds with many artefacts useful for archaeological dating. However, for many settlements from this period, where pottery is the only kind of artefacts, the TL method can give notable results. The main purpose of the study was to make an attempt at TL dating of pottery and clay daub samples from the Nieszawa Kolonia and Kręcieszki sites and to compare the obtained dates with the results of archaeological dating of selected features from the Przeworsk Culture settlements. In the Kręcieszki site the fragments of burnt clay daub were dated by the TL method for the first time in the Lublin laboratory. It turned out that clay daub is an equally good dating material as pottery. It can be found that the TL dating of pottery from Nieszawa Kolonia confirms two stages of settlement. The first settlement stage is related to the phases B2-B2/C1-C1a of the Roman period, i.e. from the beginning of the 2nd to the beginning of the 3rd century. The second group of TL dates corresponds to the phases C2D that is to the second stage of settlement, from the second half of the 3rd century to the half of the 5th century AD. The results of TL dating of pottery and clay daub in the Kręcieszki site are rather similar and correspond to the phase B1/B2 of the period of Roman influence, determined from pottery style, but can also indicate the phase B2/C1.

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Tamzil, Mohammad Hasil, e Budi Indarsih. "Measurement of Phenotype Characteristics of Sasak Ducks: Indian Runner Ducks of Lombok Island Indonesia". ANIMAL PRODUCTION 19, n.º 1 (17 de agosto de 2017): 13. http://dx.doi.org/10.20884/1.jap.2017.19.1.553.

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This study was designed to determine the phenotype characteristics of Sasak ducks in Lombok Island. The study used 64 Sasak ducks at production stage which were kept intensively by small holder farmers. Observations on the characteristics of the feather color were carried out directly on each animal. The data observed were feather colors, beak color, and the color of the foot and shank, while the data on the size of the body that was observed were body weight, beak length, neck length, back length, breast circumference, back length, thigh length, shank length, and the distance between the two pubic bones. The data obtained were tabulated and analyzed descriptively. The study concluded that the characteristic of the color of feathers in Sasak ducks were dominated by Roman color (50.13%), followed by Tanak color (21.87%), Tongkak color (15.63%), Rombak color (6.25%), and Cemaning color (3.12%). Sasak ducks with medium size were observed to have a relatively long beak, medium-long neck, short back, broad and deep chest, medium height, and the distance between the two pubic bones was quite wide. These characteristics indicate that Sasak ducks are the type of superior Indian Runner having better production ability compared to the other types of Indian Runner duck.

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Ferrándiz García, Carmen, Mercedes Ferrando, Gloria Soto, Marta Sainz e María Dolores Prieto. "Runing ahead: Pensamiento divergente y sus dimensiones: ¿De qué hablamos y qué evaluamos?" Anales de Psicología 33, n.º 1 (28 de dezembro de 2016): 40. http://dx.doi.org/10.6018/analesps.32.3.224371.

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This paper examines the role of latent cognitive process and the contents of task (verbal and figural) in divergent thinking. The sample was composed of 260 students, attending different public and semi-public schools in the Murcia Region (Spain), with ages ranging from 8 to 15 years old. Creativity was assessed with the Torrance Test of Creativity Thinking (TTCT) and the Test of Creative Imagination (PIC). Results suggest that, even though both tests are based on the psychometric approach and Guilford´s theory of creativity, their scores are not significantly correlated. Results from confirmatory factor analysis suggest two independent factors (one for each test), more related to tasks’ demands and contents than with the cognitive processes traditionally considered in the definition and measurement of creativity.

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Lin, Yingming, Binjie Yan e Dongjian Gu. "Research on Identification Algorithm of Fragile Nodes: Based on Static and Dynamic Combination of Uncertainty in New Energy". Electronics Science Technology and Application 8, n.º 1 (28 de abril de 2021): 14. http://dx.doi.org/10.18686/esta.v8i1.173.

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In this work, taking the coupled 54-node power distribution system and 25-node power flow system as examples, the effectiveness of this method is verified. In addition, a multi-objective ADN joint planning model is established by means of Wasserstein distance measurement and K-medoid scenario analysis. The location, size RES, BESS and expansion schemes of distribution network based on this model are analyzed in detail, in order to provide scientific, reliable, and cost-maximized EVCS’s charging service capabilities. More importantly, we propose a multi-objective optimization algorithm−MONAA algorithm to solve the model.

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Londoño-Pérez, Constanza, e Angélica María Moreno Ruge. "Factores Familiares y Personales Predictores de Trastornos de Conducta Alimentaria en Jóvenes". Anales de Psicología 33, n.º 2 (31 de março de 2017): 235. http://dx.doi.org/10.6018/analesps.33.2.236781.

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<span style="font-family: 'Garamond',serif; font-size: 8pt; mso-bidi-font-size: 10.0pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: AR-SA; mso-bidi-language: AR-SA;" lang="EN-US">This correlational descriptive study aimed to validate the predictive model of risk of developing eating behavior disorder in young people based on the measurement of variables such as eating behavior, body image dissatisfaction, body mass index, family functioning, and the use of criticism toward young people about their weight and the shape of their body, in young people and parents. The non-randomized sample of convenience included 208 participants, 104 of them were adolescents aged between 11 and 18 years, studying in different high schools, and 104 family members considered to be significant by the teenagers. EAT-26, ECA, Family APGAR, FEICS, and BMI were applied, all validated for the Colombian population. As a result of the multivariate analysis, it was found that the high risk of developing behavioral disorders in young people is related to high risk in their relatives; the article concludes that parents, in addition to playing a protective role, may represent a risk factor for the eating behavior of their children, given that children model their behavior on their parents from early childhood.

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Zhao, Jiu Peng, Xiang Rong Liu e Liang Sheng Qiang. "Preparation and Characterization of LiNbO₃ Thin Films Derived from Metal Carboxylate Gels". Key Engineering Materials 336-338 (abril de 2007): 213–16. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.213.

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Lithium niobate thin films have been deposited on Pt/Ti/SiO2/Si substrates by the Pechini method from metal carboxylate gels and heat-treated at temperatures ranging from 400 to 600°C. The thermal decomposition of the metal carboxylate precursor gels has been studied by differential thermal analysis and thermogravimetry. The products derived from calcination of the gels at different temperatures have been characterized by Fourier transform infrared, Roman spectrum and X-ray diffraction. Scanning electron microscopy analysis shows the surface of the films to be smooth, dense and crack-free. Electric properties measurement indicates that the LiNbO3 films demonstrate a ferroelectric hysteresis loop. The remanent polarization (Pr) and coercive field (Ec) are 17.89 μC/cm2 and 35.23 kV/cm, respectively.

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Li, Xiu-Qing, Jichong Zhang, Sainan Luo, Gongshe Liu, Agnes Murphy, Yves Leclerc e Ti Xing. "Effects of sampling methods on starch granule size measurement of potato tubers under a light microscope". International Journal of Plant Biology 2, n.º 1 (10 de junho de 2011): 5. http://dx.doi.org/10.4081/pb.2011.e5.

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Light-microscopic measurement of starch granule size is the preferred approach in most laboratories because it is simple, rapid and visual and because it can study both size and shape. However, potato juice consists of starch granules with very different sizes and precipitation/movement speeds, which causes differences when sampling the juice and taking the microscopic images. The previously described method is to scrape and transfer some juice from potatoes using a razor blade directly to a slide with some water for microscopic observation. In this study we used a tape-hole chamber on the microscopic slide to reduce the cover-slip-induced shifting of small and medium granules. We improved the starch measurement reproducibility by testing various juice sampling methods. The reproducibility between repeated experiments using 10 cultivars was increased from a correlation efficient r = 0.815 in the razor-blade-scraping method to r = 0.923 in a squeezing-juice method. The largest starch granule detected was 151 µm in length. Sampling methods (using a razor-blade or a garlic press) strongly influenced the granule length values measured from the same potato tuber. The results indicated that 1) The squeezing-juice approach is more reproducible, and 2) The average length of starch granules is one of the most reproducible scores but varies according to juice-sampling methods.

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Kyryliuk, Fedir, e Viktor Melnyk. "HUMAN AND CITIZENSHIP IN THE CONTEXT OF PARADIGMAL POLITICAL SCIENCE MEASUREMENT". Politology bulletin, n.º 80 (2018): 8–19. http://dx.doi.org/10.17721/2415-881x.2018.80.8-19.

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The critical analis of the centennial stage of the institutionalization of political science makes it possible to draw a paradoxical conclusion — political science is the science of debate and about debate. This is explained not only by the complexity of the methodological use of political science principles or by its poor integration in the subject area of other social (or behavioral) sciences. The main problems of political science are terminological uncertainty and methodological Abstraction. Each new approach in political science really can completely change the essence of its theoretical construction. By introducing the term “Civil Political Science” into broad terms, the authors hope to make a step towards the structural determinacy of political science and give it a solid foundation — the problem of a person as a citizen. Civic political science is intended to improve political science, to arrive from the destructive influence of etatism, which is only masked by ideological stamps and reduces the very idea of the state (as an organism at the same time social, legal, created by a citizen-man for a citizen-man). Applying for the new principles of civil political science, the authors hope to begin the process of “deetatization” of political science in order to serve the true interests of the state — the interests of citizenship. It should not be forgotten that only citizens determine and produce statehood by the fact of their existence. Man as a citizen was formed in the process of human transition from the wild stage of existence to settled life. The struggle of instincts of physical against moral feelings was accompanied by the whole process of political evolution of communities — from the primitive order to the present day. It did not pass the institute of citizenship, which was largely intended to reconcile the instinctive nature of man as a biosocial being (let us recall the patriarchal definition of Roman law). Consequently, the reconciliation of morality and physical nature within a person should be recognized as the prevailing tendency of civil political science.

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Caracuta, V., G. Fiorentino, M. Turchiano e G. Volpe. "Dating Historical Contexts: Issues, Plant Material, and Methods to Date the Late Roman Site of Faragola, Apulia (SE Italy)". Radiocarbon 56, n.º 2 (2014): 679–90. http://dx.doi.org/10.2458/56.17463.

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Charred plant materials found in archaeological contexts are usually considered the most reliable remains for radiocarbon dating. Usually, seeds and fruits are preferred to wood fragments because their short lifecycle reduces the range of uncertainty of the14C measurement. A selection of short-lived samples, mainly from barley and wheat, from the Late Roman site of Faragola (SE Italy) were14C dated; however, the14C dates obtained were not always consistent with the chronology provided by other archaeological evidence. A careful analysis of all the macrobotanical remains found in each of the dated contexts provides insight into the origin of the plant material, helping to distinguish betweenin situand non-in situmaterial. The14C dates are reconsidered in the context of findings and the kind of material selected for dating. Using the archaeological context, a Bayesian model was employed to reduce the range of the calibrated date and thereby refine the chronology of the site on an absolute basis.

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Caracuta, V., G. Fiorentino, M. Turchiano e G. Volpe. "Dating Historical Contexts: Issues, Plant Material, and Methods to Date the Late Roman Site of Faragola, Apulia (SE Italy)". Radiocarbon 56, n.º 02 (2014): 679–90. http://dx.doi.org/10.1017/s0033822200049717.

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Charred plant materials found in archaeological contexts are usually considered the most reliable remains for radiocarbon dating. Usually, seeds and fruits are preferred to wood fragments because their short lifecycle reduces the range of uncertainty of the14C measurement. A selection of short-lived samples, mainly from barley and wheat, from the Late Roman site of Faragola (SE Italy) were14C dated; however, the14C dates obtained were not always consistent with the chronology provided by other archaeological evidence. A careful analysis of all the macrobotanical remains found in each of the dated contexts provides insight into the origin of the plant material, helping to distinguish betweenin situand non-in situmaterial. The14C dates are reconsidered in the context of findings and the kind of material selected for dating. Using the archaeological context, a Bayesian model was employed to reduce the range of the calibrated date and thereby refine the chronology of the site on an absolute basis.

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Morais, Rogerio dos Santos, e Carlos Roberto Camello Lima. "Strategic Organizational Factors Evaluation Method". Journal of Management Research 7, n.º 4 (9 de julho de 2015): 144. http://dx.doi.org/10.5296/jmr.v7i4.7614.

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Strategic success requires a sound, firm structure and an effective system with which to analyze the competition, suppliers, and consumers, including structured and non-structured data (or “Big Data”).The more detailed the profiles of those players, the more useful the analyses will be to managers who ordinarily do not use a model to assess competition factors. This paper proposes a method of evaluating organizational strategic factors based on data concerning suppliers, consumers, and contenders in a strong competition sector. The methodology was based on a literature review, supplemented by a case study of the model’s application to a telecommunication services provider. The results, detailed in tables, are proven to enable the quantitative measurement of the strategic factors needed to support decision making.

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Lo Giudice, Alessandro, Alessandro Re, Debora Angelici, Jacopo Corsi, Gianluca Gariani, Marco Zangirolami e Emma Ziraldo. "Ion Microbeam Analysis in Cultural Heritage: application to lapis lazuli and ancient coins". ACTA IMEKO 6, n.º 3 (27 de setembro de 2017): 76. http://dx.doi.org/10.21014/acta_imeko.v6i3.465.

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Ion Beam Analyses (IBA) techniques, for example PIXE (Particle Induced X-ray Emission) and IL (IonoLuminescence), are a powerful analytical tool used to investigate the composition and structure of materials in cultural heritage. These techniques could be applied both in vacuum preparing the sample as in electron microscopy and in the air in a non-invasive way allowing to analyse artworks of practically any shape and dimension without sample preparation. Moreover the use of a focused beam (microbeam) permits to reach an analysis resolution of few micrometers in vacuum and ten micrometers in air.In this work, instruments and methodologies are described and two examples of case study are reported: I) the mapping of elemental distribution in ancient roman coins; II) the trace elements measurement in lapis lazuli for provenance determination

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Rezasoltani, A. "Cervical muscle strength measurement in two groups of elite Greco-Roman and free style wrestlers and a group of non-athletic subjects * Commentary". British Journal of Sports Medicine 39, n.º 7 (1 de julho de 2005): 440–43. http://dx.doi.org/10.1136/bjsm.2004.013961.

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Navarro, José, Rocío Meneses, Cibeles Miralles, Diana J. Moreno e Vania Campelo. "What distinguish teams from social aggregates? A tool to assess the group development". Anales de Psicología 31, n.º 3 (16 de setembro de 2015): 921. http://dx.doi.org/10.6018/analesps.31.3.183831.

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TThis research uses the construct of group development (GD) to distinguish highly developed workgroups and teams from mere social aggregates. The aims were to develop a scale capable of measuring this basic emergent process and to study the scale’s reliability and construct validity (content, factorial, convergent and criteria). Data concerning the GD, other related processes (entitativity and group identification) and team outputs (group performance and team effectiveness) were gathered from four successive studies (4099 participants belonging to 521 workgroups in 13 organizations). All the studies were carried out using a cross-sectional and correlational design. The results revealed an one-dimensional solution for the proposed measurement scale, which showed adequate reliability and validity. The scale is not only practical (quick and easy to apply) but also useful for group managers and leaders, since it provides them with a tool for determining the extent to which their groups are actually functioning as highly developed groups.

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Zheng, Jiaxin, e Wencai Yang. "Design of a Precision Agriculture Leakage Seeding System Based on Wireless Sensors". International Journal of Online Engineering (iJOE) 14, n.º 05 (25 de maio de 2018): 184. http://dx.doi.org/10.3991/ijoe.v14i05.8653.

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In light of the agricultural development in China, more attention has been paid to the studies about precision agriculture. The environmental factors such as temperature-humidity and soil humidity are the key influencing factors on crop growth, therefore, how to rapidly and accurately acquire the environmental information of crop growth and learn about their real-time growing environment is of vital importance. The wireless sensor networks (WSN) can make real-time environmental information acquisition as well as communication and processing of network environmental data. Based on this, the RSSI range-based positioning method was optimized in this paper in order to greatly improve its precision. To be specific, in this study, the particle swarm optimization (PSO) algorithm was firstly applied in the hybrid mutation strategy to make more accurate node positioning and significantly improve the evolutionary performance by enlarging the hunting zone; besides, through the use of WSN, the influencing parameters on crop growth such as soil humidity, and temperature-humidity etc. would be monitored; finally, to realize the precise location and derive the unseeded nodes, GPS was applied for accurate positioning, and the intelligence algorithm was adopted to determine the coordinate position of unknown nodes. At last, the actual field test indicates that the designed monitoring system in this paper satisfies the requirements for precise measurement, playing a positive role in promoting the development of precision agriculture.

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Freidin, Anna Bonnell. "The Birthday Present: Censorinus’ De die natali". Journal of Roman Studies 110 (15 de outubro de 2020): 141–66. http://dx.doi.org/10.1017/s0075435820001392.

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AbstractThis paper contextualises and interprets a text seldom addressed in Anglophone scholarship: De die natali (‘On the birthday’), written by Censorinus to celebrate his patron Caerellius’ birthday in 238 c.e. By exploring both gestation (natalis) and time measurement (dies), the work seeks to elucidate and isolate Caerellius’ birthday in time; it is the ultimate guide to his dies natalis. Despite a seemingly narrow focus, De die natali is best understood as part of a broad ‘spectrum’ of encyclopaedic texts, exemplifying the ‘totalising’ impetus of knowledge ordering in the Roman Empire, while simultaneously exposing the limits of such efforts. An interlocking set of tensions underlie the text, which resonate with other encyclopaedic projects — tensions between unity and plurality, centre and periphery, and the relationship between nature and culture. De die natali is both a product of, and commentary on, the conditions of human knowledge and the Empire's cultural diversity in the early third century.

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