Relevant bibliographies by topics / Measuring transformer

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Measuring transformer'

Author: Grafiati
Published: 28 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "Measuring transformer"

1

Zhao, Tao, Shijie Zhang, Jiajun Yang, Haofan Lin, Bowen Wang, and Zhi Yang. "Enhancing the monitoring capability of acoustic measurement points: An optimization method for the layout of acoustic measurement points for low‐frequency transformers." IET Science, Measurement & Technology 19, no. 1 (2024): 1–11. https://doi.org/10.1049/smt2.12230.

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AbstractThe acoustic signals in the operation of low‐frequency transformer have the state information of the body, which can be monitored online by arranging acoustic measuring points. An optimization method for the layout of acoustic measuring points for low‐frequency transformers is proposed in this study. First, a model of the low‐frequency transformer acoustic field is constructed by measuring the environmental size of the transformer acoustic field. Then, the virtual acoustic source measured by the transformer acoustic signal is input into the model, and the time‐varying acoustic pressure
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Rajashekar, K., MD Prajwal, HE Raghavendra, P. Sahana, and Kunabevu Shivakumar. "Transformer Healthiness Monitoring System." Journal of Scholastic Engineering Science and Management (JSESM), A Peer Reviewed Refereed Multidisciplinary Research Journal 4, no. 1 (2025): 137–49. https://doi.org/10.5281/zenodo.14832388.

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Here this document presents design and implementation of a mobile embedded system to measure load currents, overvoltage,  transformer oil level and oil temperature. This is implemented by using an on-line measuring system using Internet of Things (IOT),  with a single chip Arduino microcontroller and sensors. It is installed at the distribution transformers i.e. The output values of sensors  are processed and recorded in the system memory. System programmed with some predefined instructions to check abnormal  conditions. If there is any abnormality on the system, details ar
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Lu, Yong Jun, and Yi Bo Lu. "Research and Implement of Measuring the Errors of Transformers with Actual-Burden Using Programmable Digital Synthesizing Three-Phase Power Supply." Applied Mechanics and Materials 128-129 (October 2011): 970–74. http://dx.doi.org/10.4028/www.scientific.net/amm.128-129.970.

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Monitoring the actual state of transformer is imperative for measuring the errors of transformer with its actual burden load. The simplified three phases testing method is the practical and effective in monitoring the transformer state. And a programmable three-phase power supply is its core. The three-phase programmable power supply using DDS synthesizer can change the phase angle through changing triggering time of frequency update and adjusts amplitude through multiplier. It can generate three-phase signal voltage whose amplitude and phase angle can be adjusted by program. So it is suitable
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Orešković, Ana, Zdenko Godec, Miroslav Poljak, and Rajko Gardijan. "ON-SITE ACCURACY COMPARISON OF CAPACITOR AND INDUCTIVE VOLTAGE TRANSFORMERS." Journal of Energy - Energija 61, no. 1-4 (2022): 35–45. http://dx.doi.org/10.37798/2012611-4236.

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In this paper an on-site accuracy comparison of capacitor and inductive voltage transformers is presented. A 400/110 kV transformer substation in Croatia has been chosen as an appropriate location for the comparison as both types of transformers (capacitor and inductive) operate there simultaneously. Each transformer type is a part of one of the two existing measuring chains for measurement of electrical energy. Their accuracy comparison is, therefore, carried out indirectly, by actually comparing the energies measured by the first and the second measuring chain and then estimating the measure
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Joshi, Prof S. B. "Transformer Health Monitoring using IoT Based." International Journal for Research in Applied Science and Engineering Technology 11, no. 5 (2023): 7594–97. http://dx.doi.org/10.22214/ijraset.2023.53508.

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Abstract: Transformers are critical components of electric powersystems, yet precise fault identification remains difficult. The study presents a novel transformer defect diagnostic approach based on an Internet of Things (IoT) monitoring system and ensemble machine learning (EML). The IoT based monitoring system is divided into two parts: a data measuring subsystemand a data reception subsystem.To begin, the data measuring subsystem measures transformer vibration signals, which are then relayed to the remote server via the data receipt subsystem.
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Shofiyuddin, Muhammad, and Arief Wisaksono. "Testing of The Insulation Resistance and Turns Test Ratio (TTR) of The Distribution Transformers at PT PLN (Pesero) UP3 Sidoarjo." Procedia of Engineering and Life Science 7 (March 14, 2024): 339–44. http://dx.doi.org/10.21070/pels.v7i0.1478.

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Electricity plays a vital role in human life and the economic growth of Indonesia. Therefore, a reliable electrical transmission and distribution system is essential. Transformers, especially in an industrial context, play a key role in power supply. Transformer maintenance is a critical step in maintaining a stable flow of electricity. This study adopts the Research and Development (R&D) method and focuses on measuring insulation resistance and voltage ratios in the context of transformer maintenance. The research was conducted at the Pole Transformer Substation (GTT) in P. Melati, Sidoar
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Rajko Gardijan and Alen Keller. "TRANSFORMER BUSHING – A PART OF MEASUREMENT SYSTEM." Journal of Energy - Energija 61, no. 1-4 (2022): 149–59. http://dx.doi.org/10.37798/2012611-4247.

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Power transformer is one of the most important and most expensive components in the electric power system (EPS) and requires, from its production and throughout lifetime, continuous monitoring and checks of the availability in the power system. All the measurements and tests on the transformer which manufacturers attempt, in order to determine the quality of their products, are carried out through the connection of different types of bushings, and these measurements and tests are conducted in accordance with requirements of applicable standards. Also, the owner of the transformer during the ex
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Musthofa, Musthofa, and Ujang Nur Rahman. "Sistem Monitoring Beban Trafo Distribusi Secara Visual Dan Sms Gateway di PT PLN (Persero)." Energi & Kelistrikan 13, no. 1 (2021): 67–74. http://dx.doi.org/10.33322/energi.v13i1.1286.

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Economic growth of the community encourages the increasing electricity demand. To meet the electricity demand, of course, it is necessary to increase the capacity of the distribution transformer with the addition of an insert transformer and a new transformer. So that the increasing number of installed transformers is not proportional to the number of officers measuring the transformer load. The problem is the number of transformers is 3,938 units at PLN UP3 Padang with only 70 teams of load measuring officers, so load measurement only reaches 68% in 2019. This is because load measurements are
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Xu, Honghua, Yong Li, Lei Zhu, and Ziqiang Xu. "Condition assessment of transformers in wind farm based on modified one-dim residual neural network." Journal of Physics: Conference Series 2378, no. 1 (2022): 012078. http://dx.doi.org/10.1088/1742-6596/2378/1/012078.

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Abstract The working environment of transformers in the wind farm is more complex than others, which brings the difference in condition assessment. Moreover, many condition assessment methods based on characteristics or machine learning have difficulty in recognition in cases of multiple transformers, conditions and measuring points. To assess conditions, this paper establishes a condition classification model of the transformer with a modified one-dim residual neural network and uses vibration signal, current and voltage as inputs. The built network mode has faster convergence speed and class
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Kaczmarek, Michał, and Dariusz Brodecki. "Transformation of Transient Overvoltages by Inductive Voltage Transformers." Sensors 21, no. 12 (2021): 4167. http://dx.doi.org/10.3390/s21124167.

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Overvoltage transients occur after any type of switching activity in a power network, such as breaker operation, fault occurrence/clearance and rapid load change. This distortion of voltage is transformed to the secondary circuit of a voltage transformer. The maximum values of such impulses may many times exceed the rated value of its secondary voltage. This can lead to malfunction of measuring or protection devices connected to the secondary circuit of a voltage transformer and even their damage. The paper presents the application of determined values of ratio error at harmonics of the induct
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Dissertations / Theses on the topic "Measuring transformer"

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Junaydin, Mohamed Murad. "Automatically measuring the losses of a transformer." Thesis, Blekinge Tekniska Högskola, Institutionen för signalbehandling, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-12870.

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This thesis is an ongoing project of Alstom Power Sweden AB, Växjö with a collaboration of Blekinge Institute of Technology [BTH] to automatically measure the losses of a transformer. So far the company performed the measurements manually to get this loss, and they decided to automatize the measurement process. This paper presents the state space modelling approach of DC-DC Buck converter and simulation of the whole measurement circuit incorporated with the PID controller. The PID controller will control the outputs voltage of the buck converter and the output current of the resonant circuit (
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Rakk, Adrian. "Automatically measuring the resistive loss of a transformer : A project in cooperation with Alstom Power Sweden." Thesis, Blekinge Tekniska Högskola, Institutionen för tillämpad signalbehandling, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-10791.

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In order to develop more economical and ecologically friendly transformers it is necessary to know the losses throughout the product development process. There are several losses related to transformers, but in this particular case the focus will be on the resistive loss of the transformer. In order to measure this loss first the resonant frequency of the transformer is determined. Since at resonance the secondary side of the transformer is considered to be purely resistive. The aim of this paper is to design and build a closed loop measurement system that is able to perform this task.
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Bálint, Zoltán. "Průvlekový transformátor proudu 25 kV, 400/5/5 A." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217917.

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The aim of this master’s thesis is the design of a double-core bushing-type current transformer. This appliance is intended for measuring and protection of high-voltage distribution systems of the internal type for the highest system voltage of 25 kV. The master’s thesis is divided into four parts. The first part describes the function of the current transformer. The next part deals with the analysis of the phasor diagram and errors of the current transformer. The major part of the thesis deals with the design of the protective and measuring core. The last part describes the 3D model of the bu
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Dragana, Naumović Vuković. "Prilog savremenom etaloniranju strujnih mernih transformatora." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=107383&source=NDLTD&language=en.

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U ovoj doktorskoj disertaciji prikazana je koncepcija, realizacija i potvrda nove metodejednovremenog etaloniranja strujnih mernih transformatora sa dve različite merneaparature. Pregledom stručne literature ne postoji podatak da je ova metoda ranijeprimenjivana. U disertaciji su prikazane različite merne metode za ispitivanje ietaloniranje mernih transformatora koje imaju primenu u savremenoj praksi i kojepodrazumevaju i različite merne mogućnosti. Takođe je i ekperimentalno potvrđenojednovremeno ispitivanje i etaloniranje strujnih mernih transformatora sa nekolikomernih aparatura koje su zas
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Завадський, Богдан Володимирович, та Bohdan Zavadskyi. "Оптимізація системи електропостачання трансформаторної підстанції 110/10 кВ". Master's thesis, Тернопільський національний технічний університет імені Івана Пулюя, кафедра електричної інженерії,Тернопіль, Україна, 2021. http://elartu.tntu.edu.ua/handle/lib/36648.

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У зв'язку зі зростанням технологічного прогресу, розумні системи все частіше використовуються в різних сферах людської діяльності. Розумні системи дозволяють технікам, адміністраторам і менеджерам контролювати і продуктивність і роботу пристроїв з безпечної відстані. Сфера енергетики не є винятком. Розподільчі мережі компанії повинні управляти розподільною мережею, яка є однією з найважливіших частин електромережі [1]. В даний час для загального розвитку промисловості країни необхідні трансформації в енергетичному секторі. Завдання цифровізації енергетики було поставлено на найвищому р
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Šumberák, David. "Přístrojový transformátor proudu 12kV, 4000//5/5A." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220954.

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This master´s thesis describes the development proposal and production of instrument current transformer in one turn primary winding with 4000//5/5 A transfer. The thesis involves a theoretical analysis, a numerical calculation, a developmental 3D model, corresponding simulations and a standard testing of the transformers. There is a complete written description of measuring current transformer cycle from the development to the production. The transformer development and production works were collaborated with the company KPB Intra s.r.o. The company engages in development, production and sale
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Vykoukal, Tomáš. "Měřicí transformátor proudu 2500/1 A pro soustavy s nejvyšším napětím 0,72 kV." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399564.

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This thesis deals with the description, analysis, calculation, production and testing of current instrument transformer. It is a measuring current transformer in one turn primary winding with 2500/1 A transfer. This project includes theory, analysis, numerical calculation, thermal simulation and partial type test of the measuring current transformer. This transformer is developing in cooperation with KPB Intra s.r.o. KPB Intra is engaged in the development and production of instrument transformers.
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Lengvinas, Danius. "Elektros energijos apskaitos prietaisų charakteristikų tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100618_135329-87271.

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Šio darbo tyrimo tikslas – ištirti elektros energijos apskaitos prietaisų, indukcinių ir elektroninių, charakteristikas. Buvo atlikta informacijos šaltinių analizė apie indukcinių ir elektroninių elektros energijos skaitiklių ir srovės matavimo transformatorių parametrus, apsprendžiančius jų charakteristikas. Remiantis informacijos šaltinių apibendrinimu suformuota hipotezė: ne visos elektroninių elektros energijos prietaisų charakteristikos geresnės už indukcinių elektros energijos apskaitos prietaisų charakteristikas. Suformuoti tyrimo uždaviniai: ištirti elektroninių ir indukcinių elektros
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Ванько, В. М., В. Р. Куць та В. Б. Здеб. "Сучасна агрономічна тростина для моніторингу температури грунту при вирощуванні сільськогосподарських культур". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/66760.

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На даний момент в Україні одним з перспективних напрямків підвищення врожайності сільськогосподарських культур вважається застосування новітніх технічних і технологічних засобів для моніторингу стану ґрунту, в якому здійснюється вирощування того чи іншого аграрного продукту. Відомо багато прикладів нових технічних пристроїв для вимірювання параметрів ґрунту, що характеризують його температуру, вологість, вміст корисних і шкідливих речовин, призначених для ефективного вирощування аграрного продукту, захисту від шкідників та наявних у ґрунті речовин, що мають місце через вплив навколишнь
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Zimek, Alois. "Snímače střídavého a stejnosměrného proudu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217921.

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The aim of this master’s thesis is to focus on analysis of a current transformer with feedback correction of measuring error, make an AC current sensor and verify its qualities experimentally. The measuring scale of this transformer is I = 0 to 100A, f = 50Hz.
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Books on the topic "Measuring transformer"

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Petersons, Oskars. Calibration of test systems for measuring power losses of transformers. U.S. Dept. of Commerce, National Bureau of Standards, 1985.

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Association, National Electrical Manufacturers. Standard test method for measuring the energy consumption of distribution transformers. National Electrical Manufacturers Association, 2005.

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Geological Survey (U.S.), ed. A closed-path Fourier transform infrared spectrometer for measuring volcanic gases. U.S. Geological Survey, 1996.

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Geological Survey (U.S.), ed. A closed-path Fourier transform infrared spectrometer for measuring volcanic gases. U.S. Geological Survey, 1996.

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Geological Survey (U.S.), ed. A closed-path Fourier transform infrared spectrometer for measuring volcanic gases. U.S. Geological Survey, 1996.

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Geological Survey (U.S.), ed. A closed-path Fourier transform infrared spectrometer for measuring volcanic gases. U.S. Geological Survey, 1996.

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Geological Survey (U.S.), ed. A closed-path Fourier transform infrared spectrometer for measuring volcanic gases. U.S. Geological Survey, 1996.

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Geological Survey (U.S.), ed. A closed-path Fourier transform infrared spectrometer for measuring volcanic gases. U.S. Geological Survey, 1996.

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Geological Survey (U.S.), ed. A closed-path Fourier transform infrared spectrometer for measuring volcanic gases. U.S. Geological Survey, 1996.

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Geological Survey (U.S.), ed. A closed-path Fourier transform infrared spectrometer for measuring volcanic gases. U.S. Geological Survey, 1996.

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Book chapters on the topic "Measuring transformer"

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Mateusiak, Piotr, and Roman Szewczyk. "Piezoceramic Transformer Based Ionization-Deionization System." In Recent Advances in Automation, Robotics and Measuring Techniques. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05353-0_15.

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Petruk, Oleg, Roman Szewczyk, Jacek Salach, and Michał Nowicki. "Digitally Controlled Current Transformer with Hall Sensor." In Recent Advances in Automation, Robotics and Measuring Techniques. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05353-0_61.

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Yuan, Jianping, Hao Liu, Fangming Liu, Kai Xiao, and Ming Li. "Research on Measuring Range Extension Method of Voltage Transformer." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1351-6_60.

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Sun, KaiQi. "Design of Power Transformer Fault Measuring Model Based on Relevance Vector Machine." In Advances in Mechanical and Electronic Engineering. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31516-9_30.

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Cui, J., W. Kang, S. T. Wan, H. Zheng, Y. K. Zhang, and G. W. Zhou. "Influence on ±800 kV converter transformer vibration characteristics of different measuring positions." In Equipment Intelligent Operation and Maintenance. CRC Press, 2025. https://doi.org/10.1201/9781003470083-75.

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Zhu, Chang-yin, Jian Wu, Yuan Chang, et al. "Design and Application of Centralized Instrument Transformer Measuring System in Series Compensation System." In Proceedings of PURPLE MOUNTAIN FORUM 2019-International Forum on Smart Grid Protection and Control. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-9779-0_41.

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Basenko, Vasily, Oleg Vladimirov, Igor Ivshin, Marat Nizamiev, and Ilnur Usmanov. "Laser Control and Measuring Complex for Non-contact Vibration Control of the Power Transformer Technical Condition." In Lecture Notes in Civil Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-86047-9_17.

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Manmatha, R. "Measuring the affine transform using gaussian filters." In Computer Vision — ECCV '94. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/bfb0028346.

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Proskurina, Irina, Guillaume Metzler, and Julien Velcin. "The Other Side of Compression: Measuring Bias in Pruned Transformers." In Advances in Intelligent Data Analysis XXI. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-30047-9_29.

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Lou, Feng-Dan, Yue-Zhong Wang, Wei He, and Xia Li. "A Novel Method for Online Measuring the Capacity of Distribution Transformers." In Frontiers in Computer Education. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27552-4_148.

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Conference papers on the topic "Measuring transformer"

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Liu, Zien, Jun Cao, Yue Zhao, and Xiaofang Yuan. "The Uncertainty Evaluation in Measuring Dissolved Gases in Transformer Oil by Gas Chromatography Method." In 2024 6th International Conference on Energy, Power and Grid (ICEPG). IEEE, 2024. https://doi.org/10.1109/icepg63230.2024.10775802.

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Li, Binbin, Heng Lu, Jie Huang, Yabin Ma, Shaorui Qin, and Jinfei Qin. "Online evaluation method for measuring error of Fiber Optical Current Transformer based on Canonical Variable Analysis." In 2024 4th International Conference on Electrical Engineering and Control Science (IC2ECS). IEEE, 2024. https://doi.org/10.1109/ic2ecs64405.2024.10927726.

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Wicaksono, Alif Aditya, I. Ketut Eddy Purnama, and Reza Fuad Rachmadi. "Measuring the Effects of Transfer Learning for CNN and Transformer Based Network on Skin Disease Classification." In 2024 International Conference on Computer Engineering, Network, and Intelligent Multimedia (CENIM). IEEE, 2024. https://doi.org/10.1109/cenim64038.2024.10882628.

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Olesen, Andreas Junker, and Lars Vendelbo Nielsen. "Remote Monitoring Survey." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19260.

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Abstract Today, modern remote monitoring systems have the capability of measuring a variety of cathodic protection performance parameters. These include transformer rectifier parameters, pipeline potentials (on and instant-off), line currents, coating impedance of entire pipeline sections, coupon current densities, corrosion rate measurements, isolation at casings or flanges, and more. With this data readily available to an operator it is possible to continuously monitor the CP operation, and this can be used to document compliance to regulators. With enough data available, it may even be poss
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Herceg, Dejana, Karolina Kasas-Lazetic, Nikola Djuric, Dragan Kljajic, and Miroslav Prsa. "Linearity of shielded measuring transformer." In 2014 49th International Universities Power Engineering Conference (UPEC). IEEE, 2014. http://dx.doi.org/10.1109/upec.2014.6934803.

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Mocnik, J., J. Humar, J. mid, Z. Toro, and I. Kniewald. "Electronic high voltage combined measuring transformer." In 22nd International Conference and Exhibition on Electricity Distribution (CIRED 2013). Institution of Engineering and Technology, 2013. http://dx.doi.org/10.1049/cp.2013.0979.

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Gutten, Miroslav, Daniel Korenciak, Richard Janura, Tomasz Koltunowicz, and Pawel Zukowski. "Measuring system for analysis of transformer moisture." In 2018 ELEKTRO. IEEE, 2018. http://dx.doi.org/10.1109/elektro.2018.8398271.

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Babenko, Oleksii, Oleksandr Goloborodko, and Vasyl Zakharov. "INCREASING THE EFFICIENCY OF THE USE OF MEASURING TRANSFORMERS DURING ELECTRICITY METERING." In 17th IC Measurement and Control in Complex Systems. VNTU, 2024. https://doi.org/10.31649/mccs2024.4-07.

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Error limits of current and voltage measuring transformers are given and analyzed. The influence of factors on the accuracy of current and voltage measurement, as well as accounting of active and reactive electricity using current and voltage measuring transformers, was analyzed. In particular, for a measuring current transformer, such factors are the load schedule of the consumer, individual metrological characteristics of the transformer itself, as well as the load of its secondary winding (load). As for measuring voltage transformers, the accuracy of their operation is affected by the value
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Peng, Tao, Dai Wan, Miao Zhao, Hengyi Zhou, Liuming Mao, and Xujin Duan. "An Indirect Method for Measuring Transformer Residual Magnetism." In 2019 IEEE 3rd Conference on Energy Internet and Energy System Integration (EI2). IEEE, 2019. http://dx.doi.org/10.1109/ei247390.2019.9062047.

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Ahmad, Adang Suwandi, and Karel Octavianus Bachri. "Cognitive artificial intelligence method for measuring transformer performance." In 2016 Future Technologies Conference (FTC). IEEE, 2016. http://dx.doi.org/10.1109/ftc.2016.7821591.

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Reports on the topic "Measuring transformer"

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Lalisse, Matthias. Measuring the Impact of Campaign Finance on Congressional Voting: A Machine Learning Approach. Institute for New Economic Thinking Working Paper Series, 2022. http://dx.doi.org/10.36687/inetwp178.

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How much does money drive legislative outcomes in the United States? In this article, we use aggregated campaign finance data as well as a Transformer based text embedding model to predict roll call votes for legislation in the US Congress with more than 90% accuracy. In a series of model comparisons in which the input feature sets are varied, we investigate the extent to which campaign finance is predictive of voting behavior in comparison with variables like partisan affiliation. We find that the financial interests backing a legislator’s campaigns are independently predictive in both chambe
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Petersons, Oskars. Calibration of test systems for measuring power losses of transformers. National Bureau of Standards, 1985. http://dx.doi.org/10.6028/nbs.tn.1204.

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Albert, Jose Ramon. Towards Measuring the Platform Economy: Concepts, Indicators, and Issues. Philippine Institute for Development Studies, 2020. https://doi.org/10.62986/dp2020.28.

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As digital platforms provide consumers opportunities to interact with suppliers of goods and services through the internet, these platforms have radically transformed business activities, as well as the nature of work. The disruptions from the novel coronavirus pandemic also show how platforms enable people to cope with disruptions and to increasingly produce goods and services themselves in some sectors, such as transportation services, food and accommodation, and culture and recreational industries. These platforms provide intermediary and financial services, either implicitly or explicitly,
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Hart, Carl R., and Gregory W. Lyons. A Measurement System for the Study of Nonlinear Propagation Through Arrays of Scatterers. Engineer Research and Development Center (U.S.), 2020. http://dx.doi.org/10.21079/11681/38621.

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Various experimental challenges exist in measuring the spatial and temporal field of a nonlinear acoustic pulse propagating through an array of scatterers. Probe interference and undesirable high-frequency response plague typical approaches with acoustic microphones, which are also limited to resolving the pressure field at a single position. Measurements made with optical methods do not have such drawbacks, and schlieren measurements are particularly well suited to measuring both the spatial and temporal evolution of nonlinear pulse propagation in an array of scatterers. Herein, a measurement
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Rost, Lucia, Amber Parkes, and Andrea Azevedo. Measuring and Understanding Unpaid Care and Domestic Work: Household Care Survey Toolkit. Oxfam, 2020. http://dx.doi.org/10.21201/2020.6775.

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This toolkit provides guidance on using Oxfam’s Household Care Survey (HCS) methodology, which was developed by Oxfam as part of the WE-Care initiative to transform the provision of unpaid care and domestic work (UCDW). UCDW underpins all our lives yet is overwhelmingly provided by women and girls. Recognising UCDW is essential for any initiative that aims to understand and address gender inequality. The HCS is a quantitative survey tool that generates context-specific evidence on how women, men and children spend their time, how care is provided, by whom, and the main factors that affect peop
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McCarthy, James, Jeffrey Panek, and Tom McGrath. PR-312-12206-R02 FTIR Formaldehyde Measurement at Turbine NESHAP and Ambient Levels. Pipeline Research Council International, Inc. (PRCI), 2018. http://dx.doi.org/10.55274/r0011476.

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When natural gas is combusted, formaldehyde is formed as an intermediate product as methane is converted to CO2 during combustion. Formaldehyde is regulated by the U.S. EPA as a hazardous air pollutant (HAP) under National Emission Standards for Hazardous Air Pollutants (NESHAP) regulations, and both turbines and reciprocating engines are listed source categories where EPA is required to develop regulations. NESHAPs have been adopted for natural gas-fired combustion turbines and reciprocating internal combustion engines (RICE), with initial regulations in 2004 that included a 91 parts per bill
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Drayton, Paul, Jeffrey Panek, Tom McGrath, and James McCarthy. PR-312-12206-R01 FTIR Formaldehyde Measurement at Turbine NESHAP and Ambient Levels. Pipeline Research Council International, Inc. (PRCI), 2016. http://dx.doi.org/10.55274/r0011014.

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Since formaldehyde is ubiquitous (e.g., naturally formed through atmospheric chemistry even if not directly emitted), there is also the potential that atmospheric levels and atmospheric chemistry are not adequately understood.� That avenue of investigation may provide important information that could be important in assessing formaldehyde health risk, source contribution, and ultimately regulatory criteria for gas-fired combustion sources.� In 2002 and 2003, the pipeline industry conducted turbine formaldehyde testing using refined FTIR methods and a dedicated measurement system, which indicat
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Manulis-Sasson, Shulamit, Christine D. Smart, Isaac Barash, Laura Chalupowicz, Guido Sessa, and Thomas J. Burr. Clavibacter michiganensis subsp. michiganensis-tomato interactions: expression and function of virulence factors, plant defense responses and pathogen movement. United States Department of Agriculture, 2015. http://dx.doi.org/10.32747/2015.7594405.bard.

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Clavibactermichiganensissubsp. michiganensis(Cmm), the causal agent of bacterial wilt and canker of tomato, is the most destructive bacterial disease of tomato causing substantial economic losses in Israel, the U.S.A. and worldwide. The goal of the project was to unravel the molecular strategies that allow Cmm, a Gram-positive bacterium, to develop a successful infection in tomato. The genome of Cmm contains numerous genes encoding for extracellular serine proteases and cell wall degrading enzymes. The first objective was to elucidate the role of secreted serine proteases in Cmm virulence. Mut
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Siripatrawan, Ubonratana. Active Chitosan-Based Film with Antimicrobial Property for Food Packaging Application. Chulalongkorn University, 2010. https://doi.org/10.58837/chula.res.2010.22.

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This research was aimed to develop an active film from chitosan film incorporated with green tea extract to enhance antioxidant and antimicrobial properties in order to be used for food shelf life extension. The experiments were divided into 3 parts. Firstly, chitosan-based film preparation and modification were determined. The results suggested that the optimum chitosan films could be prepared from 2% chitosan in 1% acetic acid. However, the chitosan film was brittle and had low flexibility. Mechanical property of chitosan film was modified by adding different concentrations of glycerol, as a
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