6. Oceanapins A-F, unique branched ceramides isolated from the haplosclerid sponge Oceanapia cf. tenuis of the Coral sea

A series of ceramides, called oceanapins A-F (2-7), which are unique for branching at both the sphingosine and fatty-acid chains, have been isolated as pure compounds from the haplosclerid sponge #Oceanapia cf. #tenuis of the Coral Sea. Following acid hydrolysis, both the fatty-acid and the sphingosine portions were obtained separately, which allowed their unequivocal structural definition. The absolute configuration was secured via proctection of C (1')-OH and Mosher's esterification at C (3')-OH of the oceanapins. (Résumé d'auteur

Introducing Solar Thermal "Net Metering" in an Actual small-scale District Heating System: A Case-study Analysis☆

Abstract An energy and economic analysis on an hypothesis of introduction of prosumers in an actual small-scale district heating system (DHS) in Northern Italy has been carried out. The study was performed by means of dynamic simulations of the DHS. The investigated configurations include the transformation of one or more customers in prosumers, producing and self-consuming solar thermal heat, and supplying the DHS with the excess heat produced. For the considered case-study the solar heat fed into the DHS is basically antagonist of the CHP production. This leads to a decrease in the non-renewable energy share for the whole DHS, to a decrease in the profit of the DHS utility and to a profitable investment for the prosumers

SPIGOLATURE PROCESSUALI INTORNO A CASS., SS.UU., 14 aprile 2021 n. 9839

Il contributo analizza le ricadure processuali dell'ultimo arresto delle SS.UU. in tema di impugnaizone delle delibere condominiali

PER UN PROCESSO CIVILE DAVVERO TELEMATICO

Il contributo fornisce alcuni spunti per una informatizzazione "spinta" e di immediata attuazione del processo civile

Alternative energy storage options for heat pump water heater coupled with photovoltaic plant for domestic hot water production

The present work relies on the topic of energy storage for Heat and Electricity applied to Heat Pump Water Heaters coupled with photovoltaic plants for Domestic Hot Water production. The main idea is to evaluate the possibility to exploit the water tank as heat storage for the produced photovoltaic energy and, where appropriate combined with electrical storage. For this reason, two heat pumps with different volume size have been chosen and smart control strategies have been applied while monitoring the water temperature in the tank. Calculations account on tapping profile inferred from monitored data of a representative end-user in a Mediterranean small island. Results show how the combination of smart control strategies and battery systems is the most suitable solution in order to fulfil the domestic hot water energy demand by renewable sources while maintaining comfort requirements

Ethyl 6-Bromo-3indolcarboxylate and 3-Hydroxyacetal-6-bromoindole, novel bromoindoles from the sponge Pleroma menoui of the Coral Sea

L'éponge #Plemora menoui (Démosponge, #O. Lithistida, ss. #O. Trienosina, #Desmophorina, Fam. #Pleromidae$) récoltée à une profondeur de 500 m dans la Mer de Corail, au sud-est de Nouméa contient deux nouveaux alcaloïdes : ethyl 6-bromo-3-indolcarboxylate and 3-hydroxyacétal-6-bromoindole. (Résumé d'auteur