This papers presents some ideas to use so-called software agents as a software representation of a product not only during manufacturing but also during the whole life cycle of the product. Software agents are autonomous entities capable of collecting useful information about products. By their design and capabilities software agents fit well in the concept of ubiquitous computing. We use these agents in our newly developed manufacturing process. This paper discusses further use of agent technology.
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Free newspapers may offer different news contents to different audiences, when compared with traditional, paid-for newspapers, but they, nevertheless, concentrate on news, and thereby provide society with information on current affairs. These papers have seen circulation rise until 2008; after that, a decline set in, leading to closures and often a monopoly situation in the mature European newspaper markets covered in our research. Free newspapers seem to follow a typical life cycle pattern, moving from growth to maturity, and to saturation and decline. Diversification strategies – home-delivery, weekend, sports, afternoon, and financial – have been disappointing so far. There is no evidence, however, of total extinction, indicating that there is room for at least one title – possibly two – in every market. The situation in the surveyed markets also suggests that a free newspaper may be a ‘natural’ monopoly.
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Recycling of cotton waste into high value products is a longstanding goal in textile research. The SaXcellTM process provides a chemical recycling route towards virgin fibres. In this study a Life cycle assessment (LCA) is conducted to measure the impact of the chemical recycling of cotton waste on the environment. Pure cotton waste and cotton containing 10 % of polyester are elaborated. The results show that chemical recycling via the SaXcellTM process can have a lower impact on climate change and other impact category than comparable pulping technologies. doi:10.1088/1757-899X/254/19/192012
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In this proposal, a consortium of knowledge institutes (wo, hbo) and industry aims to carry out the chemical re/upcycling of polyamides and polyurethanes by means of an ammonolysis, a depolymerisation reaction using ammonia (NH3). The products obtained are then purified from impurities and by-products, and in the case of polyurethanes, the amines obtained are reused for resynthesis of the polymer. In the depolymerisation of polyamides, the purified amides are converted to the corresponding amines by (in situ) hydrogenation or a Hofmann rearrangement, thereby forming new sources of amine. Alternatively, the amides are hydrolysed toward the corresponding carboxylic acids and reused in the repolymerisation towards polyamides. The above cycles are particularly suitable for end-of-life plastic streams from sorting installations that are not suitable for mechanical/chemical recycling. Any loss of material is compensated for by synthesis of amines from (mixtures of) end-of-life plastics and biomass (organic waste streams) and from end-of-life polyesters (ammonolysis). The ammonia required for depolymerisation can be synthesised from green hydrogen (Haber-Bosch process).By closing carbon cycles (high carbon efficiency) and supplementing the amines needed for the chain from biomass and end-of-life plastics, a significant CO2 saving is achieved as well as reduction in material input and waste. The research will focus on a number of specific industrially relevant cases/chains and will result in economically, ecologically (including safety) and socially acceptable routes for recycling polyamides and polyurethanes. Commercialisation of the results obtained are foreseen by the companies involved (a.o. Teijin and Covestro). Furthermore, as our project will result in a wide variety of new and drop-in (di)amines from sustainable sources, it will increase the attractiveness to use these sustainable monomers for currently prepared and new polyamides and polyurethanes. Also other market applications (pharma, fine chemicals, coatings, electronics, etc.) are foreseen for the sustainable amines synthesized within our proposition.
Hoe kun je een koper stimuleren om niet perse de -op het eerste gezicht- goedkoopste machine of equipment aan te schaffen, maar ook te kijken naar lange termijn waardebehoud en duurzaamheid? Of andersom, hoe vergelijk je aanbod van leveranciers op een mix van criteria waaronder emissies, maar ook het lange-termijn kostenplaatje? Dit project richt zich op mkb-bedrijven in de metaal- en maakindustrie, waar veel ‘kritieke grondstoffen’ bespaard kunnen worden als er ook naar refurbish, remanufacturing en product-as-a-service gekeken wordt op het moment dat een machine vervangen moet worden. Er zal onderzocht worden in hoeverre goed gepresenteerde en samenhangende informatie over ecologische en economische duurzaamheid kan helpen bij het maken van zulke keuzes. Deze informatie wordt gepresenteerd in een beslissingsondersteunende tool. De tool moet inzicht geven over zg. Total Cost of Ownership (TCO), in plaats van enkel de aanschafprijs, en in de eco-impact van verschillende alternatieven. Eco-impact wordt vaak bepaald d.m.v. een zg. Life Cycle Analysis (LCA), waarin de levenscyclus van een product of dienst bekeken wordt van ‘wieg tot graf’. De TCO brengt juist de financiële aspecten (investering, beheer, onderhoud, ‘end-of-life’) over de levensduur in kaart. Maar het komen tot vergelijkbare LCA/TCO berekeningen vraagt afspraken over uitgangspunten en presentatiemethoden in een keten. In het project worden bestaande (reken)methoden op een vernieuwende wijze gecombineerd worden en in co-creatie geschikt gemaakt worden voor sales engineers en inkopers uit het werkveld. Het ontwerpgerichte onderzoek naar bruikbare presentatiemethoden en het mogelijke effect op aankoopgedrag zal vooral plaatsvinden met behulp van zg. ‘mockups’ waarmee de functionaliteit en interface van de tool iteratief getest wordt. Het eindresultaat is een advies over hoe te komen tot implementatie van de methode door de betrokken partijen. Het project kan zo bijdragen aan het introduceren van nieuwe circulaire business modellen in deze sector.
Phosphorus is an essential element for life, whether in the agricultural sector or in the chemical industry to make products such as flame retardants and batteries. Almost all the phosphorus we use are mined from phosphate rocks. Since Europe scarcely has any mine, we therefore depend on imported phosphate, which poses a risk of supply. To that effect, Europe has listed phosphate as one of its main critical raw materials. This creates a need for the search for alternative sources of phosphate such as wastewater, since most of the phosphate we use end up in our wastewater. Additionally, the direct discharge of wastewater with high concentration of phosphorus (typically > 50 ppb phosphorus) creates a range of environmental problems such as eutrophication . In this context, the Dutch start-up company, SusPhos, created a process to produce biobased flame retardants using phosphorus recovered from municipal wastewater. Flame retardants are often used in textiles, furniture, electronics, construction materials, to mention a few. They are important for safety reasons since they can help prevent or spread fires. Currently, almost all the phosphate flame retardants in the market are obtained from phosphate rocks, but SusPhos is changing this paradigm by being the first company to produce phosphate flame retardants from waste. The process developed by SusPhos to upcycle phosphate-rich streams to high-quality flame retardant can be considered to be in the TRL 5. The company seeks to move further to a TRL 7 via building and operating a demo-scale plant in 2021/2022. BioFlame proposes a collaboration between a SME (SusPhos), a ZZP (Willem Schipper Consultancy) and HBO institute group (Water Technology, NHL Stenden) to expand the available expertise and generate the necessary infrastructure to tackle this transition challenge.
