Search results for "paper"

Particle balance and return loops for microplastics in a tertiary-level wastewater treatment plant.

2021

Highlights: Dewatering by centrifugation was a step that removed a high number of MPs from the sludge. Sludge retained especially the fibrous microplactics. Reject water transported microplastics inside a wastewater treatment plant. Disc filter-based tertiary treatment ensured removal of 99% of microplastics in wastewater. Microplastics (MPs) from households, stormwater, and various industries are transported to wastewater treatment plants (WWTPs), where a high proportion of them are captured before discharging their residuals to watersheds. Although recent studies have indicated that the removed MPs are mainly retained in wastewater sludge, sludge treatment processes have gained less atten…

Modelling and analysing oriented fibrous structures

2014

Abstract. A mathematical model for fibrous structures using a direction dependent scaling law is presented. The orientation of fibrous nets (e.g. paper) is analysed with a method based on the curvelet transform. The curvelet-based orientation analysis has been tested successfully on real data from paper samples: the major directions of fibrefibre orientation can apparently be recovered. Similar results are achieved in tests on data simulated by the new model, allowing a comparison with ground truth. peerReviewed

Pastāvīgo vārdu biežums laikrakstu tiešsaistes publikācijas un to diskusiju ziņās

2016

Šis darbs iepazīstina ar laikraksta The Guardian tiešsiastes publikāciju analīzi. Šī darba mērķis ir izanalizēt pastāvīgo vārdu (lietvārdu, darbības vārdu un īpašības vārdu) biežumu laikrakstu publikācijas un to diskusiju ziņās. Galvenā pētījuma metode bija korpusa-lingvistiskā metode, kas balstīta uz Makenerija (2006) teoriju. Šī darba autors izveidoja mini-korpusu, kas sastāvēja no divām teksta grupām: laikrakstu publikācijām un diskusiju ziņām. Vārdšķiru biežuma sadalījums korpusā, norāda uz formalitātes līmeņu atšķirību starp laikrakstu publikācijām un to diskusiju ziņām. Iegūtie rezultāti norāda uz reģistra variāciju izanalizētājos korpusa žanra tekstos. Lai identificētu līdzības un at…

Ekonometrinen malli Ison-Britannian ja Saksan sanomalehti- ja paino- ja kirjoituspaperin kulutukselle vuosina 1960-1994

1997

Desymmetrization of Prochiral Cyclobutanones via Nitrogen Insertion: A Concise Route to Chiral γ‐Lactams

2021

Abstract Asymmetric access to γ‐lactams is achieved via a cyclobutanone ring expansion using widely available (1S,2R)‐1‐amino‐2‐indanol for chiral induction. Mechanistic analysis of the key N,O‐ketal rearrangement reveals a Curtin–Hammett scenario, which enables a downstream stereoinduction (up to 88:12 dr) and is corroborated by spectroscopic, crystallographic, and computational studies. In combination with an easy deprotection protocol, this operationally simple sequence allows the synthesis of a range of optically pure γ‐lactams, including those bearing all‐carbon quaternary stereocenters. In addition, the formal synthesis of drug molecules baclofen, brivaracetam, and pregabalin further …

Riconsiderare l’identità delle donne musulmane nell’Egitto post-rivoluzionario

2019

Questo articolo esplora alcune forme dell’identità femminile nell’Egitto post-rivoluzionario, quale si manifesta in due documenti pubblicati dopo la Rivoluzione del 2011 sui diritti delle donne musulmane. Sono il Documento di al–Azhar (2013) e la Dichiarazione di Alessandria (2014), concordi nel ribadire il valore delle donne e i diritti garantiti loro dalla shari‘a. L’uno e l’altra hanno visto il coinvolgimento delle femministe islamiche. Si descrivono anche le possibilità di collaborazione tra al-Azhar e le femministe islamiche, per fondare una conoscenza religiosa-femminista autoctona e sensibile al genere. Tale collaborazione è utile per l’affermazione di un’identità femminile rispettos…