341 research outputs found
sj-pdf-1-pie-10.1177_09544089211034025 - Supplemental material for Mechanical behavior of cellulosic fiber-incorporated modified fly ash-dispersed polymeric composites
No full textSupplemental material, sj-pdf-1-pie-10.1177_09544089211034025 for Mechanical behavior of cellulosic fiber-incorporated modified fly ash-dispersed polymeric composites by Bhabatosh Biswas, Biplab Hazra, Subhabrata Chakraborty, Nillohit Mukherjee and Arijit Sinha in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p
sj-csv-1-pie-10.1177_09544089221076799 - Supplemental material for Hydroxyapatite dispersed sulphonated PEEK composite membrane: Synthesis, structural and mechanical characterization
No full textSupplemental material, sj-csv-1-pie-10.1177_09544089221076799 for Hydroxyapatite dispersed sulphonated PEEK composite membrane: Synthesis, structural and mechanical characterization by Tanmoy Chakraborty, Apurba Das, Bhabatosh Biswas, Sunit Sarkar, Nillohit Mukherjee, Arijit Sinha and Shubhabrata Datta in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p
sj-docx-1-pij-10.1177_13506501211039736 - Supplemental material for Tribological Characteristics of Thermomechanically Processed 7075 Al Alloy Through Nano-scratch Characterization
No full textSupplemental material, sj-docx-1-pij-10.1177_13506501211039736 for Tribological Characteristics of Thermomechanically Processed 7075 Al Alloy Through Nano-scratch Characterization by Souriddha Sanyal, Ashoktaru Chakraborty, Angshuman Sarkar, Susanta K Pradhan, Utpal Madhu, Sumit Chabri, Apurba Das and Arijit Sinha in Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology</p
Marknadens effektivitet vid aktieprisfallet på ex-dagen
No full textTitel: Marknadens effektivitet vid aktieprisfallet på ex-dagen. Nivå: Kandidatuppsats inom Nationalekonomi, vårterminen 2007 Författare: Alexander Lemland och Oskar Sinha Handledare: Hossein Asgharian Syfte: Syftet är att undersöka aktieprisbeteendet på ex-dagen för att se om det förekommer en signifikant skillnad mellan prisfallet och storleken på utdelningen. Det är också att se vad aktieprisbeteendet på ex-dagen kan säga om utvecklingen av marknadens effektivitet. Frågeställning: Går det att finna en signifikant skillnad mellan prisfallet på ex-dagen och storleken på utdelningen efter justering för indexrörelser? Vad kan man utifrån aktieprisets beteende på ex-dagen säga om utvecklingen av marknadens effektivitet? Tillvägagångssätt: Vi har använt oss av en kvantitativ datainsamling och gjort hypotesprövningar för att kunna dra slutsatser. Materialet är hämtat från databaserna Datastream och Ecowin. Slutsatser: Det går att för vissa år finna en signifikant skillnad mellan aktieprisfallet och utdelningens storlek. Av de tolv år vi undersökt har det visat sig att det för fem år kan sägas att prisfallet varit signifikant lägre än utdelningsbeloppet. Detta tyder alltså på en viss marknadsimperfektion. Utvecklingen tyder dock på att marknaden, i det avseende vi undersökt, blivit effektivare på senare år. Nyckelord: Cum-dag, ex-dag, utdelning, aktieprisfall, irrationella individer, effektiva marknadshypotesen
Chemical scaffolds with structural similarities to siderophores of nonribosomal peptide–polyketide origin as novel antimicrobials against Mycobacterium tuberculosis and Yersinia pestis
No full textMycobacterium tuberculosis (Mtb) and Yersinia pestis (Yp) produce siderophores with scaffolds of nonribosomal peptide–polyketide origin. Compounds with structural similarities to these siderophores were synthesized and evaluated as antimicrobials against Mtb and Yp under iron-limiting conditions mimicking the iron scarcity these pathogens encounter in the host and under standard iron-rich conditions. Several new antimicrobials were identified, including some with increased potency in the iron-limiting condition. Our study illustrates the possibility of screening compound libraries in both iron-rich and iron-limiting conditions to identify antimicrobials that may selectively target iron scarcity-adapted bacteria and highlights the usefulness of building combinatorial libraries of compounds having scaffolds with structural similarities to siderophores to feed into antimicrobial screening programs.Fil: Ferreras, Julian Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. Cornell University; Estados Unidos. Universidad Nacional de Misiones. Facultad de Ciencias Exactas Químicas y Naturales. Departamento de Genética; ArgentinaFil: Gupta, Akash. City University of New York; Estados Unidos. University of Yale; Estados UnidosFil: Amin, Neal D.. Cornell University; Estados Unidos. University of California at San Diego; Estados UnidosFil: Basu, Arijit. Birla Institute of Technology; IndiaFil: Sinha, Barij N.. Birla Institute of Technology; IndiaFil: Worgall, Stefan. Cornell University; Estados UnidosFil: Jayaprakash, Venkatesan. Birla Institute of Technology; IndiaFil: Quadri, Luis E. N.. City University of New York; Estados Unido
Evaluation of pile repair splice design: research testing report
No full textThis archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Title from PDF title page (viewed on December 16, 2015)."The overall goal of the project was to characterize the new timber pile repair design. More specifically, the objectives of the study were to (a) characterize flexural and compressional properties of the timber splice repair design and (b) discern any influence of concrete plug length on the performance of the piles"--Page ix.Includes bibliographical references (page 13).Sponsored by Oregon Dept. of Transportation, Research Section Report no. 17384Mode of access: Internet from the Oregon Government Publications Collection.Text in English.Research testing repor
Population balance equation for collisional breakage: A new numerical solution scheme and its convergence
No full text<p><strong>Synopsis</strong></p><p>These files represent a reference implementation of the finite volume method for the solution of the discretised population balance equation for collisional breakge. Several test cases are provided. </p><p>Implementation language: Matlab (FORTRAN-derivative)</p><p>The method and its capabilities are described in<br>P. Kuswah, A. Das, J. Saha, A. Bück, "Population balance equation for collisional breakage: A new numerical solution scheme and its convergence", Communications in Nonlinear Science and Numerical Simulation, vol 121, 107244, 2023. </p><p>If the method or code is used in other work, cite<br>P. Kuswah, A. Das, J. Saha, A. Bück, "Population balance equation for collisional breakage: A new numerical solution scheme and its convergence", Communications in Nonlinear Science and Numerical Simulation, vol 121, 107244, 2023. </p><p><strong>License</strong></p><p>The implementation is distributed as-is without taking over any responsibility by the authors or their affiliated institutions for potential damages resulting from its use. </p><p>The implementation is made available under Creative Commons Attribution Non Commercial No Derivatives 4.0 International. </p><p><strong>Folder contents</strong></p><p>The reference implementations are provided for the cases discussed in the mentioned publication. The implementation of the finite volume methode is stored in the sub-folders "DPBE_Brk", calling sequence and required initialisiations are given in the files "Main_FPT.m".</p><p>In case of problems, bug reports, feel free to contact any author.</p><p>On behalf of all authors,</p><p>Andreas Bück<br>Institute of Particle Technology<br>Friedrich-Alexander-Universität Erlangen-Germany<br>[email protected]<br>www.spg.forschung.fau.de</p><p> </p><p>v1.0: 31.08.2023</p>
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Lateral Edge Connection and Withdrawal Capacity of Western Juniper
No full textWestern juniper (Juniperus occidentalis) is a “native invasive” tree species in Eastern Oregon. It is extremely good at finding and consuming water in arid climates, which makes it difficult for other plant species, especially sagebrush and grasses to survive. Sagebrush and grasses are necessary for the survival of the sage grouse, a threatened species. There is much discussion about harvesting juniper trees to help alleviate the stresses the trees put on the sage grouse and water supply in Eastern Oregon. However, there is not much of a market for juniper wood. Part of the reason is that there are no design values for juniper available, making engineers and designers reluctant to choose juniper for structural applications. The goal of this project is to increase the amount of available information about juniper wood in order to encourage its use in structural applications. To contribute to this goal, this project evaluated the performance of connections involving Western juniper wood and other common wood-based building materials. The tests for this project will include edge lateral nail connection test as per ASTM D 1575, dowel bearing strength test as per ASTM D 5764, and withdrawal test as per ASTM D 1761. Following the testing, the data was analyzed and inferences were drawn about the performance of the species in these types of connections. The results were also evaluated against predictive design equations found in the National Design Specification. The result of this project will help form a material statistic on performance of connections involving western juniper. Western juniper can potentially be an economically important species for rural Eastern Oregon. However, lack of engineering design values for the species and a performance metric for connections impedes its acceptance in mainstream construction. The data obtained in this study suggests that NDS equations can adequately predict connection performance of juniper, provided the specific gravity is known.
Key Words: oriented strand board, lateral connections, western junipe
Bayesian Inference of survival data with gamma process priors
No full textCox\u27s (1972) Proportional Hazards (PH) model is one of the most popular models for fitting survival data with covariates. This model assumes that the hazard functions are proportional over time. In practice, however, this assumption is often not valid. For this reason several extensions to nonproportional hazards models have been discussed in the literature. Here we have studied the Generalized Odds Rate Hazards (GORH) model. To estimate the parameters in the PH model Cox proposed the partial likelihood approach. Bayesian method of estimation was introduced by Kalbfleisch (1978) when the cumulative baseline hazard function is assumed to be a stochastic process and in particular a Gamma Process with independent increments. In this study we develop an efficient Bayesian method of estimation for the GORH model under the same setting. Several sets of latent variables have been introduced to facilitate the posterior computation. Conditional Predictive Ordinate has been developed for the PH and GORH models to assess model fit. An innovative simulation algorithm via direct forward sampling and Gibbs sampling is developed to generate tied failure times for simulation studies. We proposed a novel Bayesian method to handle the extensive ties in the datasets and compared it to the existing Breslow (1974) method. The Bayesian Deviance Information Criterion (DIC) has also been derived for model comparison. We have further extended our proposed method to the GORH model and the posterior computation has been discussed.
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Postpeak residual capacity of nailed connections of a shear wall
No full textTo quantify the postpeak residual capacity and
to gain insights into the load transfer mechanism of a shear
wall, nail connection tests were performed on salvaged
connections after a monotonic shear wall test loaded up
to peak load. Experimental results reveal that there is a
loss of strength in most of the fasteners studied, indicating
that almost all the fasteners contribute toward racking
resistance of the wall. The maximum loss of strength was
observed for the fastener in the uplift corner and for the
fastener along the middle stud. Another area where fasteners
exhibited a significant loss of strength was in plate
connection located at the bottom plate. The performance
of a shear wall can be enhanced by strengthening the two
areas – uplift corner and bottom plate.This is the publisher’s final pdf. The published article is copyrighted by Walter de Gruyter GmbH and can be found at: http://www.degruyter.com/view/j/hfsg.Keywords: racking resistance, uplift corner, yield strength, national design specification, strength loss, nail connection test, bottom plate, wood-frame shear wall, load transfe
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