cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
AstroSat CZT Imager observations of GRB 151006A: timing, spectroscopy, and polarisation study
Creators: name: Rao, A. R.
name: Chand, Vikas
name: Hingar, M. K.
name: Iyyani, S.
name: Khanna, Rakesh
name: Kutty, A. P. K.
name: Malkar, J. P.
name: Paul, D.
name: Bhalerao, V. B.
name: Bhattacharya, D.
name: Dewangan, G. C.
name: Pawar, Pramod
name: Vibhute, A. M.
name: Chattopadhyay, T.
name: Mithun, N. P. S.
name: Vadawale, S. V.
name: Vagshette, N.
name: Basak, R.
name: Pradeep, P.
name: Samuel, Essy
name: Sreekumar, S.
name: Vinod, P.
name: Navalgund, K. H.
name: Pandiyan, R.
name: Sarma, K. S.
name: Seetha, S.
name: Subbarao, K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: AstroSat is a multi-wavelength satellite launched on 2015 September 28. The CZT Imager of AstroSat on its very first day of operation detected a long duration gamma-ray burst (GRB) namely GRB 151006A. Using the off-axis imaging and spectral response of the instrument, we demonstrate that CZT Imager can localise this GRB correct to about a few degrees and it can provide, in conjunction with Swift, spectral parameters similar to that obtained from Fermi/GBM. Hence CZT Imager would be a useful addition to the currently operating GRB instruments (Swift and Fermi). Specifically, we argue that the CZT Imager will be most useful for the short hard GRBs by providing localisation for those detected by Fermi and spectral information for those detected only by Swift. We also provide preliminary results on a new exciting capability of this instrument: CZT Imager is able to identify Compton scattered events thereby providing polarisation information for bright GRBs. GRB 151006A, in spite of being relatively faint, shows hints of a polarisation signal at 100-300 keV (though at a low significance level). We point out that CZT Imager should provide significant time resolved polarisation measurements for GRBs that have fluence 3 times higher than that of GRB 151006A. We estimate that the number of such bright GRBs detectable by CZT Imager is 5 - 6 per year. CZT Imager can also act as a good hard X-ray monitoring device for possible electromagnetic counterparts of Gravitational Wave events.
description: Submitted to ApJ
Welsh Wreck Web Research Project (North Cardigan Bay). On-line research into the wreck of the: SS Aberdeen
Creators: name: Cossons, Nigel
Publisher: name: Archaeology Data Service
Year: 2023

description: Welsh Wreck Web Research Project unpublished report series, 1
description: This report discusses the loss of the SS Aberdeen in 1941. The Aberdeen was built in Govan on the Clyde in 1896 and initially fished from Grimsby. She was a steel trawler with her bridge aft, behind the funnel and was owned by a Grimsby based company, Hagerup, Doughty & Co. In around 1925 she moved to fish from Lowestoft, acquiring the Lowestoft fishing number LT123 and being owned by Consolidated Fisheries Ltd. By the late 1930s she was owned in, and fishing from, Milford Haven although she was still registered in Lowestoft and appears to have retained her Lowestoft fishing number. Most of her crew still seem to have been from east coast ports and there appears to have been only one person from Milford Haven on board. On 11th March 1941 whilst fishing in Cardigan Bay the Aberdeen was bombed and machinegunned by a German aircraft and although apparently not hit directly near misses were sufficient to sink the vessel.
КЛИНИЧЕСКИЕ И ЭПИДЕМИОЛОГИЧЕСКИЕ АСПЕКТЫ ДИФИЛЛОБОТРИОЗА ВЗРОСЛЫХ И ДЕТЕЙ
Creators: name: Ефременко, Евгений
Publisher: name: ИП Соколова М.В.
Year: 2022
Subjects: рыба
лентец широкий
эпигастральная область
паразитоз
тошнота
анемия
членники паразита

description: Международный научно-исследовательский журнал, №8(122) (2022)
Textile Sludge Based Bricks Production from Hawassa Industrial Park Zero Liquid Discharge Facility
Creators: name: Tsegay, Gebremedhin
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Textile sludge is an inevitable byproduct discharged from wastewater treatment plants and becoming a great challenge in today's industrial parks. Presently, the sludge generated from the ZLD facility is sent and collected inside nearby big constructed shed without any treatment. Since, the sludge is characterized by high level of organic and inorganic components including heavy metals, its accumulation is a burden to the industry and affects the environment and human well-being adversely. Hence, it demands an alternative sludge disposal method. Therefore, the main objective of this study was to investigate the physio-chemical sludge characteristics and suitability of utilizing sludge in the manufacture of bricks replacing natural clay the case of Hawassa industrial park. The test results revealed that concentration of BOD, COD and the principal heavy metals viz. Pb, Zn, Cr & Mn of the textile sludge were 535, 9820 mg/l and 2.25, 30.45, 8.08, 6.75 mg/kg respectively. Additionally, the proximate analysis of the sludge moisture content, VOM, ash and fixed carbon was 82.5, 48.4, 44 and 7.6 percent respectively. Similarly, the quantity of chemical constituents SiO2, Al2O3, CaO and Fe2O3 conducted by using chemical analysis methods, were 16.10, 21.40, 2.56 and 2.32 in percent respectively. The presence of these compounds indicates the potential use of this sludge as partial replacement of building materials. In this work, the effects of sludge proportion 10%, 15% and 20% by dry weight and firing temperature of 800℃, 900℃ and 1000℃, on the quality of the bricks (Water Absorption, and Compressive Strength) were examined and the results were compared with those of controlled bricks. From the results, the minimum values of compressive strength obtained was 2.93 N/mm2 at 20% and 800℃ whereas the maximum amount is 4.2 N/mm2 at 10% sludge mix and 1000℃. Again, the Water Absorption of 21.33% and 12.4% was gained at 20% and 10% sludge content. Moreover, the sludge amended up to 20% mixing ratio shows minimum leachability of heavy metals as performed by ICP-OES and compatible as compared to the USEPA standard. Consequently, the experiment work indicates the potential of textile sludge in the manufacturing of bricks.
Far-field nanoscale infrared spectroscopy of vibrational fingerprints of molecules with graphene plasmons
Creators: name: Hu, Hai
name: Yang, Xiaoxia
name: Zhai, Feng
name: Hu, Debo
name: Liu, Ruina
name: Liu, Kaihui
name: Sun, Zhipei
name: Dai, Qing
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Infrared spectroscopy, especially for molecular vibrations in the fingerprint region between 600 and 1500 cm-1, is a powerful characterization method for bulk materials. However, molecular fingerprinting at the nanoscale level still remains a significant challenge, due to weak light-matter interaction between micron-wavelengthed infrared light and nano-sized molecules. Here, we demonstrate molecular fingerprinting at the nanoscale level using our specially designed graphene plasmonic structure on CaF2 nanofilm. This structure not only avoids the plasmon-phonon hybridization, but also provides in situ electrically-tunable graphene plasmon covering the entire infrared fingerprint region, which was previously unattainable. In addition, undisturbed and highly-confined graphene plasmon offers simultaneous detection of in-plane and out-of-plane vibrational modes with ultrahigh detection sensitivity down to the sub-monolayer level, significantly pushing the current detection limit of far-field mid-infrared spectroscopy. Our results provide a platform, fulfilling the long-awaited expectation of high sensitivity and selectivity far-field fingerprint detection of nano-scale molecules for numerous applications.
description: 20 pages, 6 figures, accepted by Nature Communications
Welsh Wreck Web Research Project (North Cardigan Bay). On-line research into the Grounding of: Areon Belle (Schooner)
Creators: name: Davies, Gareth J.S.
Publisher: name: Archaeology Data Service
Year: 2023

description: Welsh Wreck Web Research Project unpublished report series, 1
description: This project is to discover information relating to the history of the schooner Aeron Belle built in Aberaeron Wales in 1856 (MADU Ref 387). The Aeron Belle was a coastal cargo schooner which sailed predominately between Wales and Ireland. On Feb 20th 1910, the Aeron Bell grounded off Abersoch requiring the lifeboat to be launched and the crew rescued. The Aeron Belle was refloated and continued sailing until 1919 when it was reported to have sunk in the Shannon River, Ireland.
Post-peak behaviour of concrete-rock interfaces and side resistance of rock socketed piles
Creators: name: Haw., Mak Ran
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
PlastChemTox evidence map - literature screening protocol
Creators: name: Wagner, Martin
name: Groh, Ksenia
Publisher: name: Zenodo
Year: 2023
Subjects: systematic review

description: As part of the PlastChem project, we will perform a semi-systematic search of the scientific literature to identify peer-reviewed publications that have analyzed the toxicity caused by the mixture of chemicals migrating from plastic materials and products. As part of this work, we set up this protocol to screen the corpus resulting from this literature search for eligible publication. Accordingly, the protocol defines inclusion and exclusion criteria in line with the PI/EO framework.
description: The PlastChem project is funded by the Norwegian Research Council (project no. 341954)
Autonomous frequency stabilization of two extended cavity diode lasers at the potassium wavelength on a sounding rocket
Creators: name: Dinkelaker, Aline N.
name: Schiemangk, Max
name: Schkolnik, Vladimir
name: Kenyon, Andrew
name: Lampmann, Kai
name: Wenzlawski, André
name: Windpassinger, Patrick
name: Hellmig, Ortwin
name: Wendrich, Thijs
name: Rasel, Ernst M.
name: Giunta, Michele
name: Deutsch, Christian
name: Kürbis, Christian
name: Smol, Robert
name: Wicht, Andreas
name: Krutzik, Markus
name: Peters, Achim
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We have developed, assembled, and flight-proven a stable, compact, and autonomous extended cavity diode laser (ECDL) system designed for atomic physics experiments in space. To that end, two micro-integrated ECDLs at 766.7 nm were frequency stabilized during a sounding rocket flight by means of frequency modulation spectroscopy (FMS) of 39^K and offset locking techniques based on the beat note of the two ECDLs. The frequency stabilization as well as additional hard- and software to test hot redundancy mechanisms were implemented as part of a state-machine, which controlled the experiment completely autonomously throughout the entire flight mission.
description: 10 pages, 7 figures
Afterword
Creators: name: Stark, Lauren Ware
name: Dyke, Erin
name: Maton, Rhiannon
Publisher: name: Critical Education
Year: 2022

description: In this afterword, the editors of the special series Contemporary Educator Movements: Transforming Unions, Schools, and Society in North America reflect on the purpose and contributions the series. After reviewing relevant research, they discuss the focus of each of the four issues in the special series as well as themes that appear across the series. Finally, they highlight some of the contributions this series makes to research on social justice unionism and educator organizing.
description: Critical Education, Vol. 13 No. 4 (2022)
Basis-neutral Hilbert-space analyzers
Creators: name: Martin, Lane
name: Mardani, Davood
name: Kondakci, H. Esat
name: Larson, Walker D.
name: Shabahang, Soroush
name: Jahromi, Ali K.
name: Malhotra, Tanya
name: Vamivakas, A. Nick
name: Atia, George K.
name: Abouraddy, Ayman F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Interferometry is one of the central organizing principles of optics. Key to interferometry is the concept of optical delay, which facilitates spectral analysis in terms of time-harmonics. In contrast, when analyzing a beam in a Hilbert space spanned by spatial modes -- a critical task for spatial-mode multiplexing and quantum communication -- basis-specific principles are invoked that are altogether distinct from that of `delay.' Here, we extend the traditional concept of temporal delay to the spatial domain, thereby enabling the analysis of a beam in an arbitrary spatial-mode basis -- exemplified using Hermite-Gaussian and radial Laguerre-Gaussian modes. Such generalized delays correspond to optical implementations of fractional transforms; for example, the fractional Hankel transform is the generalized delay associated with the space of Laguerre-Gaussian modes, and an interferometer incorporating such a `delay' obtains modal weights in the associated Hilbert space. By implementing an inherently stable, reconfigurable spatial-light-modulator-based polarization- interferometer, we have constructed a `Hilbert-space analyzer' capable of projecting optical beams onto any modal basis.
description: 6 figures
eveloping and Analyzing Automated Tests for Computer Based Interlocking System The Case of AA LRT
Creators: name: Bira, Kawo
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Railway system has safety, economic and environmentally critical system because its failure may cause serious consequences of loss human life, serious injuries, and large scale of environmental damages or considerable economical penalties. Therefore we have to guarantee that they are designed and put into operation properly. Thus, no error can be tolerated in the operation of the system. Interlocking system is used for ensuring the safety of trains. Interlocking systems control all wayside elements in railway traffic. These systems are accountable for safe train operations and must prevent collisions and derailments of the train. Testing the interlocking systems is a key focus. Before start the train operation must be test all equipment according to the interlocking law and safety regulation. In general there are two type of testing approach in railway system that is manual and automatic. Both have on their own advantage and disadvantage. Automation has two major benefits; it saves the verification time and reduces the risk of manual errors. In order to verify whether an interlocking system is consistent with the system requirement specification, it is necessary to carry out a series of testing. In this thesis to verify the interlocking system use control tables, Boolean function, flowchart, a computer aided tool for the generation of test cases is studied and implemented. A number of test purpose models have been created to direct test case against the interlocking. These test purpose models were implemented in C sharp and Sql server. The entire test setup can be run on any PC and does not require the interlocking hardware. This method can be applies to a number of smaller interlocking systems and partly to the more complex of AALRT depot and station. Simulations have GUI to interacts the user with the system and enable easy visualization of the movement of the train. The user can inject different possibility of testing mechanism. One testing mechanism was unavailable list of Tracks or Switch interlocking elements. Other methods are using randomly occupied of Tracks and changing of the switch position. Result show that with 7 routing selected 21 conflicting and 64 derailment of the train are verified and validated. The verification is comparing the expected result with the actual simulations. This simulations tools are used for addition verification that support for AALRT.
Yom Hashoah [Folder] - 01
Creators: name: Reinstein, Victor Hillel, 1950-
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Religion
valueUri: http://id.worldcat.org/fast/1093763
subject: Jewish Holocaust (1939-1945)
valueUri: http://id.worldcat.org/fast/958866
subject: Memorial service
valueUri: http://id.worldcat.org/fast/1015902
subject: Holocaust Remembrance Day
valueUri: http://id.worldcat.org/fast/958824
subject: Holocaust memorials
valueUri: http://id.worldcat.org/fast/958834

description: This folder contains Victor Reinstein's notes and research for Yom Ha'Shoah services in Victoria, B.C., and includes letters, service bulletins, hand-written notes, personal testimonies, memorial service programs from around the world, newspaper clippings, correspondence, and publications.
Welsh Wreck Web Research Project (North Cardigan Bay). On-line research into the: SS Rio Negro
Creators: name: Davies, Gareth J.S.
Publisher: name: Archaeology Data Service
Year: 2023

description: Welsh Wreck Web Research Project unpublished report series, 1
description: The SS Rio Negro a cargo steamship was built as the SS Mera in Glasgow in 1901 and owned byDeutsche-Dampfsfahrts Ges Kosmos, Germany and sailed between Germany and South America.In 1914 she was interned in Montevideo by the Uruguayan Government. In 1917, the SS Merawas seized by Uruguay and renamed the SS Rio Negro. In 1918, the SS Rio Negro was owned bythe Shipping Controller, London and managed by Houlder Bros. In Jan 1920, SS Rio Negroexperience propeller failure in the Irish Sea and drifted near to the coast of Barmouth resulting ina rescue operation. The SS Rio Negro continued to sail after the incident and was repurchased byUruguay in 1920 sailing between South America, North America and Europe. In 1928, SS RioNegro was purchased by F.W.O. Boning & Co, Bremen, Germany and renamed SS Brema. In Jan1930, SS Brema was laid up and in 1933 was broken up at Bo'ness, River Forth.
Transitzone
Creators: name: Liebisch-Gümüş, Carolin
Publisher: name: Universität Osnabrück
Year: 2023
Subjects: subject: Asyl
subject: Grenzregime
subject: Visa
subject: Transit
subject: Flugverkehr
subject: 300 - Sozialwissenschaften, Soziologie, Anthropologie
subject: 02.00 - Wissenschaft und Kultur allgemein: Allgemeines

description: Hören sie den Begriff ‚Transitzone‘, denken wohl viele Menschen zunächst an Flugreisen, an das Warten im Boarding-Bereich und Duty-Free-Shopping. Seit den 1980er Jahren erlangte der ursprünglich in der Flughafen- und Verkehrsplanung beheimatete Begriff jedoch eine neue Bedeutung im Kontext von Flucht, Asyl und irregulärer Migration. In jenem Jahrzehnt landeten in steigender Zahl Flüchtende und undokumentierte Migrierende aus afrikanischen und asiatischen Ländern per Flugzeug in der Bundesrepublik und in Westeuropa. Am Flughafen angekommen, baten sie die Grenzpolizei um Asyl. Der Bundesgrenzschutz winkte sie allerdings nicht einfach durch, damit sie ein Asylverfahren im Landesinnern aufnehmen konnten. Vielmehr avancierten ‚Transitzonen‘ zu Grenzräumen und Filtern, in denen Asylsuchende vorkontrolliert, befragt, von den übrigen Reisenden separiert und in manchen Fällen zurückgewiesen werden konnten. Der Artikel zeigt, wie sich der Begriff ‚Transitzone‘ im Zuge dieser Entwicklung wandelte und wer ihn mit welcher Intention benutzte. Dadurch wird der Blick auf seine Politisierung frei: Der Begriff fand Eingang sowohl in die Asylpolitik als auch in kritische Gegendebatten. Bis heute steht er auf der einen Seite für migrationspolitische Kontrollutopien – konkret für die Idee einer Verlagerung von Asylverfahren an Grenzen – sowie auf der anderen Seite für die von Pro-Migrations-Gruppen befürchtete Aushebelung des Asylrechts.
Microstructure in rapidly solidified aluminium-titanium alloys
Creators: name: Majumdar., Amitabha
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Zigzag antiferromagnetic ground state with anisotropic correlation lengths in the quasi-2D honeycomb lattice compound Na2Co2TeO6
Creators: name: Bera, A. K.
name: Yusuf, S. M.
name: Kumar, Amit
name: Ritter, C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The crystal structure, magnetic ground state, and the temperature dependent microscopic spin-spin correlations of the frustrated honeycomb lattice antiferromagnet Na2Co2TeO6 have been investigated by powder neutron diffraction. A three dimensional (3D) long-range antiferromagnetic ordering has been found below TN ~ 24.8 K. The magnetic ground state, determined to be zigzag antiferromagnet [k = (1/2 0 0)], occurs due to the competing exchange interactions up to third nearest neighbors within the honeycomb lattice. The exceptional existence of a limited magnetic correlation length along the c axis (perpendicular to the honeycomb layers in the ab planes) has been found within the 3D long-range ordered state, even at 1.8 K, well below TN. The observed limited correlation along the c axis is explained by the disorder distribution of the Na ions within the intermediate layers. The reduced ordered moments mCo(1) = 2.77(3) muB/Co2+ and mCo(2) = 2.45(2) muB/Co2+ at 1.8 K reflect the persistence of spin fluctuations in the ordered state. Above TN, the presence of short-range magnetic correlations, manifested by broad diffuse magnetic peaks, has been found. Reverse Monte Carlo analysis of the experimental diffuse magnetic scattering data reveals that the spin correlations are mainly confined within the 2D honeycomb layers (ab plane) with a correlation length of ~ 12 Å at 25 K. The nature of spin arrangements is found to be similar in both the short-range and long-range ordered magnetic states. This implies that the short-range correlation grows with decreasing temperature and leads to the zigzag AFM ordering at T < TN. The present study provides a comprehensive picture of the magnetic correlations over the temperature range above and below TN and their relation to the crystal structure. The role of intermediate soft Na-layers on the magnetic coupling between honeycomb planes is discussed.
description: 34 Pages, 10 figures
On the integral of products of higher-order Bernoulli and Euler polynomials
Creators: name: Dagli, M. Cihat
name: Can, Mümün
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11B68, 11F20

description: In this paper, we derive a formula on the integral of products of the higher-order Euler polynomials. By the same way, similar relations are obtained for $l$ higher-order Bernoulli polynomials and $r$ higher-order Euler polynomials. Moreover, we establish the connection between the results and the generalized Dedekind sums and Hardy--Berndt sums. Finally, the Laplace transform of Euler polynomials is given.
Introduction to Issue 4 of the Special Series on Transforming Unions, Schools and Society
Creators: name: Stark, Lauren Ware
name: Dyke, Erin
name: Maton, Rhiannon
Publisher: name: Critical Education
Year: 2022

description: This is the final issue in a four-part special series titled Contemporary Educator Movements: Transforming Unions, Schools, and Society in North America. While the previous three issues explored educator organizing in the United States, this issue expands the focus of the series to educator organizing across the Americas. The interviewees and authors in this issue offer engaged research and narratives of organizing in educator networks and unions in Canada and Chile. In doing so, they provide insights into the importance of internal organizational structures, external networks, and solidarity with and for struggles for justice in schools and society.
description: Critical Education, Vol. 13 No. 4 (2022)
The multizone chemical evolution of the Galactic bulge: predicting abundances for different radial zones
Creators: name: Cavichia, Oscar
name: Mollá, Mercedes
name: Bazán, Juanjo
Publisher: name: Zenodo
Year: 2023
Subjects: Bulge
Milky Way
Chemical evolution
Chemical abundances
Stars

description: In this work, we developed a chemical evolution model, taking into account the mass distribution in the Galaxy bulge and disc, to derive the radial dependence of this time-scale in the Milky Way galaxy. Since the infall rate depends on that time scale in the chemical evolution model, the results of the model were used to test a scenario where the bulge is formed inside-out. The Galactic bulge is formed assuming an inside-out growth scenario where the accretion of metal-poor gas from the halo builds the spheroidal component and also the disc. The disc is divided in concentric rings each one 1 kpc wide. In this new work, the bulge is divided in concentric spherical shells of 0.25 kpc. The conclusions of this work are the following ones: The metallicity distribution function (MDF), represented by the [Fe/H] histograms for each spherical region predicts a wider MDF for the inner regions and a narrower for the outer ones. The number of stars composing the metal poor (MP) population is higher in the central fields than the outer ones, in agreement with the data. At the same time, the fraction of metal rich (MR) stars increases towards the centre. Nonetheless, the positions of the peaks do not change considerably. The model predicts that there is a radial [Fe/H] gradient within the bulge of -0.12 dex/kpc. In the [α /Fe] vs. [Fe/H] plane, the model predicts a dependence with the spherical region. The inner bulge regions have higher [α/Fe] for sub-solar metallicities. At higher metallicities the differences are less important. The results suggest that the spread of the data in this kind of plot might be the result of mixing stars from different radial regions. The wider and asymmetrical global MDF may result from combining stellar populations that are formed in distinct regions within the bulge and formed with different timescales. Considering the age interval in which the fraction of bars in the universe is observed to increase, most of the stellar populations in the bulge are likely formed before the bar formation.
“We’re Ready to Fight”
Creators: name: Maton, Rhiannon
Publisher: name: Critical Education
Year: 2022

description: In this interview, Ontario Education Workers United (OEWU) member Deborah Buchanan-Walford talks with Rhiannon Maton about how the OEWU engages in grassroots organizing for improved working and learning conditions in Ontario, Canada public schools. We discuss the learning and workplace challenges experienced in adult day schools during Covid-19, issues of power centralization within the broader educators union, and the significance of activist educators organizing in spaces that are external to their union.
description: Critical Education, Vol. 13 No. 4 (2022)
Welsh Wreck Web Research Project (North Cardigan Bay). On-line research into the sinking of the: SS Korsnaes
Creators: name: Davies, Gareth J.S.
Publisher: name: Archaeology Data Service
Year: 2023

description: Welsh Wreck Web Research Project unpublished report series, 1
description: The SS Korsnaes a cargo steamship was built as the SS Vale in Bergen, Norway by Bergens Mekaniske Verksteder A/S - BMV in 1891. The SS Vale was sold and renamed several times before being finally named the SS Korsnaes. In March 1917 while sailing to Liverpool, SS Korsnaes was stopped by the German U-boat UC-65 before being scuttled.
Characterization and Use of Sewage Sludge Ash as Supplementary Cementitious Material for Concrete
Creators: name: Mohammed, Ali
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Disposal of sewage sludge is becoming a serious environmental problem. The incineration process is able to reduce the volume of sewage sludge. It is not a proper solution, so the sewage sludge ash generated after the incineration process, and it must be disposed to landfill. The general objective of this study was to investigate the properties and use of sewage sludge ash as supplementary cementation material for concrete. Sewage sludge was incinerated at temperature of 600 ºC and 800 ºC for 3 & 2.5 hours. The incinerated sewage sludge ash was sieved through size of 75 µm and investigates physical properties, and chemical compositions of sewage sludge ash were carried out. SSA is pozzolanic material satisfied the requirement of ASTM C618. Chemical composition of SSA incinerated at 600 ºC and 800 ºC were determined by Atomic Absorption spectrometer. AAS test has shown that the sewage sludge ash contained primarily these oxides such as SiO2, Al2O3, Fe2O3 and CaO. The concrete specimens were prepared using 5 %, 10 %, 15 %, and 20 % of the two temperatures incinerated sewage sludge ash that is 600 ºC and 800 ºC, and design mix ratio of 1:2:4 with w/c ratio was 0.82. The cubic mold size of 10 cm x 10 cm x 10 cm was used to produce a concrete specimen, and the concrete tests have then been measured both at the fresh and hardened concrete. In the hardened concrete, the results of a concrete have shown that 600 ºC SSA 5% & 800 ºC SSA 10% replacement of OPC by sewage sludge ash achieved a higher compressive strength than the others percentage of set in this research at the age of the 28 days as compared with the control concrete (0 % SSA). The percentage of water absorption increased with increase in sewage sludge ash that incinerated at temperature of 600 ºC & 800 ºC, and all the blended (% SSA) concretes have shown a higher amount of water absorbed as compared with the control concrete (0 % SSA).
Fault Detection in IEEE 14-Bus Power System with DG Penetration Using Wavelet Transform
Creators: name: Ray, Prakash K.
name: Panigrahi, B. K.
name: Rout, P. K.
name: Mohanty, Asit
name: Dubey, Harishchandra
Publisher: name: arXiv
Year: 2016
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Wavelet transform is proposed in this paper for detection of islanding and fault disturbances distributed generation (DG) based power system. An IEEE 14-bus system with DG penetration is considered for the detection of disturbances under different operating conditions. The power system is a hybrid combination of photovoltaic, and wind energy system connected to different buses with different level of penetration. The voltage signal is retrieved at the point of common coupling (PCC) and processed through wavelet transform to detect the disturbances. Further, energy and standard deviation (STD) as performance indices are evaluated and compared with a suitable threshold in order to analyze a disturbance condition. Again, a comparative analysis between the existing and proposed detection is studied to prove the better performance of wavelet transform.
description: 5 pages, 4 figures, 1 table
Description of the theoretical food web model from How artificial light at night may rewire ecological networks: concepts and models
Creators: name: Sanders, Dirk
name: Hirt, Myriam R.
name: Brose, Ulrich
name: Evans, Darren M.
name: Gaston, Kevin J.
name: Gauzens, Benoit
name: Ryser, Remo
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Artificial light at night (ALAN) is eroding natural light cycles thereby changing species distributions and activity patterns. Yet, little is known about how ecological interaction networks respond to this global change driver. Here, we assess the scientific basis of the current understanding of community-wide ALAN impacts. Based on current knowledge, we conceptualize and review four major pathways by which ALAN may affect ecological interaction networks by (i) impacting primary production, (ii) acting as an environmental filter affecting species survival, (iii) driving the movement and distribution of species, and (iv) changing functional roles and niches by affecting activity patterns. Using an allometric-trophic network model, we then test how a shift in temporal activity patterns for diurnal, nocturnal, and crepuscular species impacts food web stability. The results indicate that diel niche shifts can severely impact community persistence by altering the temporal overlap between species, which leads to changes in interaction strengths and rewiring of networks. ALAN can thereby lead to biodiversity loss through the homogenization of temporal niches. This integrative framework aims to advance a predictive understanding of community-level and ecological-network consequences of ALAN and their cascading effects on ecosystem functioning.This article is part of the theme issue ‘Light pollution in complex ecological systems’.
After the Dust Has Settled:
Creators: name: Bascia, Nina
name: Maharaj, Sachin
Publisher: name: Critical Education
Year: 2022

description: The question this article attempts to answer is, how can teacher unions take advantage of the opportunities afforded by their organizational structures while minimizing the factors that have stood in the way of educational and societal change? Drawing from examples of teacher unions’ strategies from studies of several organizations outside of the United States, it provides examples of how teacher unions have “crafted coherence” between their inner dimensions and outward-looking strategies, and contributes to the advancement of critical education by recommending ways that teacher organizations can more effectively support social justice and social change.
description: Critical Education, Vol. 13 No. 4 (2022)
An investigation of reasons influencing supply chain management (SCM) adoption and rejection amongst Malaysian & Australian businesses : perspectives on knowledge & partnership
Creators: name: Mahmod., Azima
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Adsorption of Heavy Metal from Constituent Waste Water by Tea Waste Adsorbent
Creators: name: Oljira, Lalise
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Most industries such as electroplating, textile, fertilizer, batteries, leather, and others in less developed countries discharge huge volumes of untreated wastewater into water bodies. The industrial wastewater may contain toxic chemicals in excess of the threshold level when released into the environment, particularly to the aqueous environment and soil; significantly degrade the quality of the water thereby affecting river health substantially and subsequently human health. There are several techniques for removing toxic chemicals such as ion exchange, membrane filtration, adsorption, irradiation and chemical and biological treatments. However, the adsorption method is believed to be the better option because it is cost-effective, efficient, simple and easy to operate, and environmentally friendly according to many studies. Accordingly, this method can be a preferable option for developing countries like Ethiopia, where advanced treatment technologies for high volumes of toxic industrial waste water are unaffordable. The aim of this work was to determine the potential of tea waste (TW) as a useful adsorbent for the removal of copper and zinc ions from aqueous systems. The study was conducted using batch experiments with constituted wastewater having copper and zinc ion concentration of 1000 mg·L-1. The effects of initial concentration, contact time and pH on adsorption efficiency were investigated. Adsorption isotherm was also studied. Generally, the result showed an increase in removal efficiency with increase in contact time, pH and decrease of initial concentration. The adsorption equilibrium data correlate well with Freundlich model and Langmuir model respectively for zinc removal and copper removal with regression coefficient (R2=0.9913, R2=0.981). The results showed that efficiencies of (TW) for the removal of copper and zinc ion were 95.98% and 99.80% respectively at optimum point of 5pH, 10ppm, and 120min. These results clearly indicate the efficiency of tea waste (TW) as a low-cost adsorbent for treatment of wastewater containing copper and zinc ions. Therefore, it is recommended that tea waste can be used, as a low cost and abundant source for the removal of heavy metals as an alternative to more costly materials. KEY WORDS: Copper, zinc, toxicology, adsorption, tea waste, batch study, atomic adsorption spectrometer.
‘No Cuts to Education’
Creators: name: Bocking, Paul
Publisher: name: Critical Education
Year: 2022

description: The return of the Conservatives to power in Ontario, Canada in 2018 saw major attacks on the province’s K-12 education system, centering on increases to class size and mandatory e-learning courses for students which, taken together with other budget cuts, amounted to the elimination of thousands of teaching and support staff positions, as well as threats of privatization. These policies provoked widespread resistance from education workers, who as union members and grassroots activists conducted extensive outreach to build public support, engaged in job actions, and participated in the largest strikes in Ontario for decades as part of the campaign for “No Cuts to Education.” The start of the COVID-19 pandemic in the spring of 2020 ended the movement. This article assesses the victories and defeats of this key struggle in defense of public education. It considers the strategies and tactics of provincial and local union leadership and activist members, in which the battle with the provincial government for the alignment of public support was widely recognized as being of decisive importance. The author uses autoethnographic research as a local union leader, interviews with active union members, policy documents, union statements and media coverage to construct an historical account. This experience has relevance for studies of teachers’ resistance to the neoliberalization of education, as well as social movement unionism and its challenges.
description: Critical Education, Vol. 13 No. 4 (2022)
Geotif completo de MDT/SIGSC/2010 de Imbituba,SC
Creators: name: Quoos, João Henrique
name: de Santa Catarina, Governo
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 401301
subject: Cartography and digital mapping

description: Recorte do município de Imbituba e entorno do Modelo Digital de Terreno (MDT). Dados fornecido pelo Sistema de Informações Geográficas de Santa Catarina (SIGSC) em 2010 e adaptado pelo autor. O SIGSC possui plataforma online de distribuição de dados, o endereço é: http://sigsc.sc.gov.br/.
Characterization and Optimization of Volcanic Ash and Portland Cement blend for Property Enhancement of Concrete
Creators: name: Solomon, Zeleke
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Volcanic Ash is one of naturally occurring Pozzolanaic material that was tested in this research work for partial replacement of cement for production of concrete. With respect to reduction of cement consumption for sustainable construction (i.e. reducing GHG emission) evaluation of the strength reduction is crucial as it has a severe impact on the structure under construction. This paper examines the effects of replacing cement by using Lege-Dadi Volcanic Ash on the strength and certain durability characteristics of concrete. The research aims to determine the optimal amount of Volcanic Ash for production of high-grade concrete. Preliminary tests of the different properties of materials used for this research were carried out. The Lege Dadi Volcanic Ash satisfied the requirement of ASTM C618-00.The samples of Volcanic Ash were prepared in five different proportions (0, 5, 10, 15 & 20 wt %) and design mix ratio of 1: 2.9: 3.9 with a 0.61 w/c ratio to make 45 cubic and 27 cylindrical concrete samples. The cubic samples were used to assess compressive strength tests where as the cylindrical samples were used to determine abrasion resistance, water absorbency and acid attack tests. Uniaxial compressive tests were used to examine the strength of concrete achieved after 3, 7 and 28 days of curing. Result of compressive strength show that early strength of concrete samples were low, but as the curing period increases their compressive strength increases.15 % replacement of Volcanic ash was an optimum replacement in this research with compressive strength of 21.3 MPa less than by 4 % with the control (i.e. 0% of Volcanic Ash)and expected to increase in subsequent curing days. The permeability of cylindrical concrete samples decreases as the percentage of volcanic ash in the mix increases, the weight loss due to abrasive force of samples containing volcanic ash were not considered as significant. Acid significantly attacks the surface texture of both control and Volcanic Ash sample concrete cylinders. However, after 28 days of immersion samples contain Volcanic Ash powder reduces the mass loss, compared to the reference control concrete samples.
New neutron-rich isotope production in $^{154}$Sm+$^{160}$Gd
Creators: name: Wang, Ning
name: Guo, Lu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Deep inelastic scattering in $^{154}$Sm+$^{160}$Gd at energies above the Bass barrier is for the first time investigated with two different microscopic dynamics approaches: improved quantum molecular dynamics (ImQMD) model and time dependent Hartree-Fock (TDHF) theory. No fusion is observed from both models. The capture pocket disappears for this reaction due to strong Coulomb repulsion and the contact time of the di-nuclear system formed in head-on collisions is about 700 fm/c at an incident energy of 440 MeV. The isotope distribution of fragments in the deep inelastic scattering process is predicted with the simulations of the latest ImQMD-v2.2 model together with a statistical code (GEMINI) for describing the secondary decay of fragments. More than 40 extremely neutron-rich unmeasured nuclei with $58 \le Z\le 76$ are observed and the production cross sections are at the order of ${\rm μb}$ to mb. The multi-nucleon transfer reaction of Sm+Gd could be an alternative way to synthesize new neutron-rich lanthanides which are difficult to be produced with traditional fusion reactions or fission of actinides.
description: 5 figures, accepted for publication in Phys. Lett. B
The dynamic effect of rail joint on Railway Track components
Creators: name: Abraham, Girma
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: A rail irregularity is the weakest link in the railway track which highly creates the impact forces. The impact forces in the rail irregularity such as insulated rail joints or bolted rail joints can be extremely large and can cause serious failures in the track structure, which can lead to a significant economic loss for track owners by making damage to rails and to the sleepers beneath. The main question that to be answered in relation to the imperfection or rail irregularity especially with the bolted jointed rail is that; "what is the dynamic effect of this weakest point or jointed rail on the railway track components". Thus, this paper is mainly focuses on the studying this effect. In analyzing this effect, the finite element modeling software, ABAQUS having 2D model algorithm is used to analyze the dynamic effect of the jointed rail on the track system response. In doing this, four different vehicle speeds ranges from 60Km/hr to 200Km/hr are used for analyzing the dynamic effect of jointed rail on the railway track components. The results show that; as the vehicle speeds of the train increases from 60Km/hr to 200Km/hr, the spatial displacement of the rail, sleeper and ballast is also increases in zigzag forms for the entire length of the rail. Apart from this, to further studying the dynamic effect of the jointed rail on the track components different type of rail pads having a stiffness of 50MN/m, 100MN/m, 150MN/m, 200MN/m and 500MN/m area also included in the study to account the dynamic effect of the rail pads on the track performance. The results this thesis indicates that; the rail pads stiffness has significant role in reducing the vertical vibration of the rail, sleeper and ballast. Moreover, in order to further analyze the dynamic effect of the jointed rail on the railway track components; the effect of the position of sleepers, wheel load and diameters are also presented. In line with this, with all the above scenarios, the results show that as the vehicle speed of the wheel, wheel diameters and number of the wheels increases, the dynamic acceleration and spatial displacement of the rail, sleeper and ballast especially at and around the rail joints are also increases. Further, the dynamic actions such as frequency analysis, acceleration and dynamic spatial displacement are also determined at and around the jointed rail. Thus, the vertical vibration of the rail and sleeper is maximum at the frequency range from 90Hz to 130Hz and the vertical vibration of the ballast is maximum at the frequency range from 174Hz to 300Hz.
Introduction to Part 3 of the Special Series on Transforming Unions, Schools and Society
Creators: name: Stark, Lauren Ware
name: Maton, Rhiannon
name: Dyke, Erin
Publisher: name: Critical Education
Year: 2022

description: This is the third issue in a special series titled Contemporary Educator Movements: Transforming Unions, Schools, and Society in North America. In this issue, we turn our attention to educator organizing in cities on the east and west coasts of the United States, tracing movements that developed before and alongside the statewide organizing highlighted in the previous issue. In particular, we bring together studies that illuminate the organizing of educators within social justice caucuses: groups of educators organizing to advance justice and democracy in their schools, unions, and communities. The authors and interviewees in this special issue document the complex ways that educators advance racial justice and democracy within and through their organizing.
description: Critical Education, Vol. 13 No. 3 (2022)
ЭВРИСТИЧЕСКИЙ ПОДХОД К ОПТИМИЗАЦИИ СТРУКТУРЫ КАДРОВ ТЕЛЕМЕТРИЧЕСКИХ ДАННЫХ ДЛЯ ЗАДАЧИ СЖАТИЯ
Creators: name: Сообщество рецензентов Международного научно-исследовательского журнала
Publisher: name: ИП Соколова М.В.
Year: 2022
Subjects: телеметрические данные
кадр данных
предварительная обработка
структурное преобразование
сжатие
коэффициент сжатия

description: Международный научно-исследовательский журнал, №8(122) (2022)
Collisional Model of Energy Dissipation in 3D Granular Impact
Creators: name: Bester, Cacey Stevens
name: Behringer, Robert P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the dynamic process occurring when a granular assembly is displaced by a solid impactor. The momentum transfer from the impactor to the target is shown to occur through sporadic, normal collisions of high force carrying grains at the intruder surface. We therefore describe the stopping force of the impact through a collisional based model. To verify the model in impact experiments, we determine the forces acting on an intruder decelerating through a dense granular medium using high-speed imaging of its trajectory. By varying the intruder shape and granular target, intruder-grain interactions are inferred from the consequent path. As a result, we connect the drag to the effect of intruder shape and grain density based on a proposed collisional model.