Search results for "Tev"
showing 10 items of 748 documents
Novel supramolecular affinity materials based on (−)-isosteviol as molecular templates
2013
The readily available ex-chiral-pool building block (−)-isosteviol was combined with the C3-symmetric platforms hexahydroxytriphenylene and hexaaminotriptycene providing large and rigid molecular architectures. Because of the persistent cavities these scaffolds are very potent supramolecular affinity materials for head space analysis by quartz crystal microbalances. The scaffolds serve in particular as templates for tracing air-borne arenes at low concentration. The affinities of the synthesized materials towards different air-borne arenes were determined by 200 MHz quartz crystal microbalances.
Ernesto Basile e lo studio della figura umana nel disegno "dal vero" e "al vero".
2012
Questo nuovo corpus di opere supporta l'ipotesi che, al contrario, l'attenzione data al disegno dal vero, non soltanto quello architettonico o floreale, sia stata una costante nell'opera basiliana, e che il ritratto e, soprattutto, più in generale, il disegno di figura, ne siano una parte strutturale. E questa attenzione non si limita al piano ideologico, come si potrebbe dedurre dall'accalorato intervento del 1879 sulla rivista «Pensiero ed Arte», con il quale il giovane architetto rivolgeva pubblicamente le proprie richieste al senatore palermitano Perez, l'allora Ministro della Pubblica Istruzione, in merito all'auspicata realizzazione di una Scuola di Belle Arti a Palermo, affermando: «…
High-energy resummation effects in the production of Mueller-Navelet dijet at the LHC
2016
We study the production of two forward jets with a large interval of rapidity at hadron colliders, which was proposed by Mueller and Navelet as a possible test of the high energy dynamics of QCD, within a complete next-to-leading logarithm framework. We show that using the Brodsky-Lepage-Mackenzie procedure to fix the renormalization scale leads to a very good description of the recent CMS data at the LHC for the azimuthal correlations of the jets. We show that the inclusion of next-to-leading order corrections to the jet vertex significantly reduces the importance of energy-momentum non-conservation which is inherent to the BFKL approach, for an asymmetric jet configuration. Finally, we ar…
Anaerobic on-site wastewater treatment at low temperatures
2005
Sari Luostarinen tutki väitöstyössään hajautettua anaerobista jätevesien käsittelyä alhaisissa lämpötiloissa (10-20 °C). Anaerobinen käsittely mahdollistaa sekä jätemateriaalin stabiloinnin, uusiutuvan energian tuotannon metaanina ja/tai vetynä että arvokkaiden yhdisteiden, kuten ravinteiden, uudelleenkäytön. Luostarisen mukaan käsittely voidaan toteuttaa hajautettuna kiinteistö- tai kyläkohtaisissa prosesseissa. Mikäli ravinteiden uudelleenkäyttö ei ole mahdollista, esimerkiksi hygieniamääräyksien vuoksi, ja ravinteiden poistoa vaaditaan, se voidaan toteuttaa aerobisessa jälkikäsittelyprosessissa. Luostarisen tutkimuksessa kaksivaiheinen anaerobinen ylösvirtaussaostuskaivo (UASB-saostuskai…
Environmental context determines pollution impacts on ecosystem functioning
2023
Global change assessments have typically ignored synthetic chemical pollution, despite the rapid increase of pharmaceuticals, pesticides and industrial chemicals in the environment. Part of the problem reflects the multifarious origins of these micropollutants, which can derive from urban and agricultural sources. Understanding how micropollutants harm ecosystems is a major scientific challenge due to asymmetries of stress across trophic levels and ecological surprises generated by multiple drivers interacting in human-impacted landscapes. We used field assays above and below municipal wastewater treatment plants (WWTPs) in 60 sampling locations across 20 Swiss streams to test how micropoll…
Potential of municipal sewage treatment plants to remove bis(2-ethylhexyl) phthalate
2004
Sanna Marttinen tutki väitöskirjatyössään muovin pehmentimenä käytettävän DEHP-kemikaalin pitoisuuksia ja käyttäytymistä yhdyskuntajätevedenpuhdistamolla. Täyden mittakaavan puhdistamoilla tehtyjen tutkimusten sekä laboratorio- ja pilot-kokeiden avulla Marttinen selvitti puhdistamojen kykyä poistaa DEHP:a jätevesistä ja siten vähentää DEHP:n ympäristökuormitusta. The removal of bis(2-ethylhexyl) phthalate (DEHP) at municipal sewage treatment plants (STPs) was studied at full-scale plants and in experiments carried out with sewage, reject water and sludge containing native DEHP. DEHP concentration in Finnish sewages was typically at a level of 100 µg/l. Most of the DEHP was sorbed to colloid…
Occurrence of pharmaceuticals in municipal wastewater treatment plants and receiving surface waters in Central and Southern Finland
2016
The presence of five selected pharmaceuticals, four anti-inflammatory drugs, diclofenac, ibuprofen, ketoprofen, naproxen, and an antiepileptic drug carbamazepine, was determined at four municipal wastewater treatment plants (WWTPs) and in the receiving waterway near the city of Jyväskylä, in central Finland and also in the River Vantaa. First, an analytical method was developed including a pretreatment and purification followed by liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) in the multiple reaction monitoring mode. The studied pharmaceuticals were detected from influents and effluents of four municipal WWTPs and from surface water of eight locations along the water …