Author Archives: paolog

About paolog

homo technologicus cynicus

The app bubble is over

Posted on June 17, 2019 by paolog

Here is the number of Android apps on the Google Play app store over the last 8 years: Source: AppBrain, and copies thereof stored on the web archive. It looks like we passed the peak ! Users have on average … Continue reading →

Posted in Philosophy, UI | Leave a comment

Calculating the liquid density at saturation

Posted on February 6, 2019 by paolog

This is the full source code required to calculate with LIBPF the liquid density at saturation for an equimolar mixture of ethane and propane at pressures between 1 and 30 atm: /** @file Qsatliqrho.cc @brief Calculate the density of a … Continue reading →

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Verificare che un file PDF/A sia conforme

Posted on July 8, 2017 by paolog

Come fare per verificare prima dell’invio alla pubblica amministrazione o al registro imprese che un documento PDF è conforme allo standard PDF/A ? Non è facile trovare strumenti di cui fidarsi. In passato esisteva in Webtelemaco un servizio gratuito per … Continue reading →

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Impressions from the sps ipc drives Italia 2017 fair

Posted on May 29, 2017 by paolog

The sps ipc drives 2017 fair which took place in Parma last week has been dominated by the Industry 4.0 theme, which was already lurking in last year’s edition (see the mini-reportage about that). All visitors coming from the south … Continue reading →

Posted in Chemeng, Industry 4.0 | Leave a comment

Commento alla fiera sps ipc drives Italia 2017

Posted on May 29, 2017 by paolog

La fiera sps ipc drives 2017 che si è svolta a Parma la settimana scorsa è stata dominata dal tema dell’Industria 4.0, che aveva già fatto da sfondo all’edizione dell’anno scorso (vedi il mini-reportage in inglese). Questa volta ai visitatori … Continue reading →

Posted in Chemeng, Industry 4.0 | Leave a comment

Iperammortamento Industry 4.0 e superammortamento software

Posted on December 2, 2016 by paolog

Le aziende fornitrici di macchinari assoggettabili agli iper/super-ammortamenti Industry 4.0 nei prossimi due anni (2017-2018) avranno un vantaggio competitivo rispetto ai concorrenti che non possano offrire queste caratteristiche. Infatti i clienti preferiranno l’acquisto di macchine, sistemi e dispositivi in grado … Continue reading →

Posted in Industry 4.0 | Tagged | Leave a comment

How to make the digital transformation of manufacturing happen ?

Posted on October 24, 2016 by paolog

[Originally appeared as guest post on the Industrial IoT/Industrie 4.0 Viewpoints blog] The Digital Transformation is there: devices, technologies and suppliers are ready to bring manufacturing enterprises to a new level with increased productivity and more added value. But if … Continue reading →

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HOWTO migrate tasks from kanboard to phabricator

Posted on October 12, 2016 by paolog

Kanboard is a Kanban Project Management tool written in PHP. an excellent lightweight tool to quickly set up a project and organize tasks (think of it as a down-to-earth trello). Phabricator on the other hand is a complete suite of … Continue reading →

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Extend the system partition in a Windows virtual machine running within kvm with file-based virtual disk

Posted on September 12, 2016 by paolog

The post Extend the system partition in a Windows virtual machine running within kvm/lvm is applicable if the virtual disk is on a LVM volume. If the virtual disk is file-based, these are the required steps: Find out what is … Continue reading →

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Effect of initial estimates for KLLs on the convergence of liquid-liquid equilibrium calculations

Posted on August 10, 2016 by paolog

The initial estimates for the KLLs (equilibrium factors) have a big influence on the convergence behavior of liquid-liquid equilibrium calculations. To highlight this effect, let’s try out something with LIBPF. We choose the system H2O / 2-ethyl-1-hexanol. Experimental measurements for … Continue reading →

Posted in C++, Chemeng, Uncategorized | Tagged , | Leave a comment