Search results for "Process"
showing 10 items of 22310 documents
AN INTEGRATED APPROACH FOR THE HCl AND METALS RECOVERY FROM WASTE PICKLING SOLUTIONS: PILOT PLANT DESIGN AND OPERATIONS
2020
Pickling is one of the key steps in the hot-dip galvanizing process, where HCl solutions are largely used to remove metal oxides from metallic surfaces, thus generating spent waste liquors containing high concentrations of metals and acid. Disposal of the industrial pickling waste dramatically affects the hot-dip galvanizing industry economics and environmental footprint. Thus, reducing strong acid waste disposal is one of the most beneficial steps to enhance the process sustainability. Moreover, the continuous regeneration of pickling solutions enhances pickling rate and process performance, also minimizing industrial wastewater disposal and chemicals consumption promoting the circular use…
DEVELOPMENT AND MODELING OF MEMBRANE PROCESSES FOR THE REGENERATION OF ACID PICKLING SOLUTIONS
2021
The doctoral thesis focuses on a novel integrated process for the recovery and valorisation of acid and metal salts present in the waste solutions of the pickling process. The proposed process is based on the integration of two innovative membrane technologies, the Diffusion Dialysis and the Membrane Distillation, coupled with a reactive precipitation section. This hybrid process allows the recovery and the enhancement of waste solutions, as well as optimal operating conditions for the continuous pickling process, thus improving its efficiency. Hydrochloric acid recovery was assessed through a detailed study on the Diffusion Dialysis process by implementing a wide experimental campaign usin…
La costruzione della memoria pubblica come “performance culturale”: riflessioni a partire dalla commemorazione della strage di Portella della Ginestra
2009
Commemorare, ovvero il ricordare e celebrare in forma pubblica, implica l’evocazione – da parte di attori specifici – di retoriche anche in forma solenne, di fronte ad un pubblico, o più verosimilmente a pubblici diversi: il ricordare medesimo ha il significato, tutto sociale, di riattualizzare la memoria del gruppo sociale di appartenenza, spesso ritualizzandola.Un’analisi sociologica che non si limiti, “[...] a indagare le condizioni istituzionali ed esteriori, ambientali, della produzione culturale, ma che si introduca, passando dalla porta principale, nello stesso oggetto o prodotto culturale, per rivelarne la struttura anche semiotica e narrativa, a decifrarne il codice” (Santoro, 2006…
Political culture in the Indonesian Parliament : analyzing parliamentary debates on the regional parliaments 1999-2009
2015
Additional file 2: of Novel subpopulations in date palm (Phoenix dactylifera) identified by population-wide organellar genome sequencing
2019
Mitochondrial and Chloroplast Haplotype SNP Positions. Table containing genotypes for all intra-date palm SNP positions in the Mitochondrial and Chloroplast haplotypes identified in this study. (XLSX 18 kb)
Assessment of Cyber Security risks : A Smart Terminal Process
2023
In Finland, the connections to global maritime transportation logistics systems are an essential part of the national critical infrastructure. As a part of maritime logistics systems, the port's operations are important elements for global maritime traffic and the transportation supply chain. Digitalization of seaport services makes it possible to increase the efficiency of terminal systems in the logistic processes. At the same time, port logistic processes can notably reduce its CO2 emissions by optimizing port operations. The improvement of port processes relies very much on the development of Information and Communication Technology (ICT) and Industrial Control Systems (ICS) or Operatio…
La messa alla prova dopo il dictum della Consulta: indenne ma rivisitata e in attesa di nuove censure
2019
Con la sentenza n. 91 del 2018, la Consulta ha avuto modo di offrire una rivisitazione "ad ampio spettro" dell'istituto della sospensione del procedimento con messa alla prova, affrontandone diversi aspetti fondamentali. La pronuncia - pur esprimendosi in termini di inammissibilità o di infondatezza delle questioni sollevate - può essere considerata un importante spartiacque nell'elaborazione ermeneutica della fattispecie, risolvendo alcuni problemi interpretativi e, al contempo, ponendone in luce di nuovi.
Processi erosivi e messa in sicurezza del territorio siciliano
2010
Self-regulation of learning: the potential technologies impact of the metacognitive approach
2012
Self-regulation researchers theorize that self-regulation does not occur when learners display personal initiative, perseverance, and adaptive skill in pursuing learning. At its core, self-regulation involves self-motivation as well as metacognitive processes. Reflection on the process of learning is believed to be an essential ingredient in the development of expert teachers. By employing reflective thinking skills to evaluate the results of one’s own learning efforts, awareness of effective learning strategies can be increased and ways to use these strategies in other learning situations can be understood. In this paper, we describe how expert teachers use the knowledge they have gained o…
On automatic algorithm configuration of vehicle routing problem solvers
2019
Many of the algorithms for solving vehicle routing problems expose parameters that strongly influence the quality of obtained solutions and the performance of the algorithm. Finding good values for these parameters is a tedious task that requires experimentation and experience. Therefore, methods that automate the process of algorithm configuration have received growing attention. In this paper, we present a comprehensive study to critically evaluate and compare the capabilities and suitability of seven state-of-the-art methods in configuring vehicle routing metaheuristics. The configuration target is the solution quality of eight metaheuristics solving two vehicle routing problem variants.…