Sökning: "Process Risks"

Visar resultat 1 - 5 av 417 avhandlingar innehållade orden Process Risks.

1. 1. Process development for combined pentose and hexose fermentation

   Författare :Fredrik Nielsen; Avdelningen för kemiteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bioethanol; Lignocellulose; Xylose fermentation; Co-fermentation; Process design; Agricultural residues; Saccharomyces cerevisiae;

   Sammanfattning : Second-generation ethanol from lignocellulose is a sustainable alternative that can partially replace fossil fuels. To be competitive with first generation ethanol from sugar and starch crops and fossil fuels, the conversion efficiency and ethanol yields of second-generation ethanol conversion processes must be improved. LÄS MER

3. 2. Privacy and Security Analysis : Assessing Risks and Harm to Patients

   Författare :Samuel Wairimu; Stefan Lindskog; Lothar Fritsch; Rose-Mharie Åhlfeldt; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Privacy; Security; e-Health; Risks; Harms; Personlig integritet; Informationss ̈akerhet; e-h ̈alsa; Risker; Skador; Computer Science; Datavetenskap;

   Sammanfattning : Disruptive technologies in the form of e-Health or electronic healthcare (the use of information technology in health) have the ability to provide positive implications to both patients and healthcare professionals. Recently, public health agencies deployed contact tracing apps with the aim of curbing the spread of COVID-19, by aiding manual contact tracing, and lifting restrictions. LÄS MER

4. 3. Exploring Process Aspects of Change Impact Analysis

   Författare :Per Jönsson; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; change impact analysis; process support; change control process; software evolution;

   Sammanfattning : Change is inevitable in software development. During the entire lifecycle of a software system, from conception to retirement, things happen that require the system to be changed: the hardware and software environment changes, customer needs evolve, flaws are found, and so on. LÄS MER

5. 4. Process development for platform chemical production from agricultural and forestry residues

   Författare :David Nickel; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Biorefinery; pretreatment; lignocellulose; multi-feed SSCF; preadaptation; multi-scale variability analysis; platform chemicals; lactic acid; logging residues; mixed feedstocks; ethanol;

   Sammanfattning : As part of a bio-based economy, biorefineries are envisaged to sustainably produce platform chemicals via biochemical conversion of agricultural and forestry residues. However, supply risks, the recalcitrance of lignocellulosic biomass, and inhibitor formation during pre­treatment impair the economic feasibility of such biorefineries. LÄS MER

7. 5. Opportunities and uncertainties in the early stages of development of CO2 capture and storage

   Författare :Mårten Lind; Mats Westermark; Mohsen Assadi; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Acceptance; cement; CCS; CO2 capture and storage; early opportunities; enhanced oil recovery; expert opinions; hybrid power cycles; optimism; oxyfuel combustion; pressurised fluidised bed combustion; pilot plant; potassium carbonate; risk; Sargas; scenario studies; scientific uncertainty; stakeholder perceptions; Chemical process and manufacturing engineering; Kemisk process- och produktionsteknik;

   Sammanfattning : The topic of this thesis is carbon dioxide (CO2) capture and storage (CCS), which is a technology that is currently being promoted by industries, scientists and governments, among others, in order to mitigate climate change despite a continued use of fossil fuels. Because of the complex nature of CCS and the risks it entails, it is controversial. LÄS MER