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In the production of ethanol from lignocellulosics, large quantities of water are needed in various process steps. In industrial processes, recycling of process streams is necessary to minimise fresh water requirements and decrease the amount of wastewater produced. This leads to increases in various substances, both volatile and non-volatile which inhibit fermentation. In the present Study ethano
Our aim was to describe patient flows in mandibular third molar surgery at ora I and maxillofacial specialist units. Our hypothesis was that there are variations in how care is delivered and that the variations could be explained by inter-individual variations in surgeons' practice,the quality of the radiographs appended to the referral, and the staffing of the specialist units. A flow chart was c
The downstream process of monoclonal antibodies (mAbs) is expensive and significantly contributes to overall manufacturing costs. One primary reason is the extensive consumption of water and chemicals required for preparing large volumes of various buffers, essential for multiple chromatography and filtration steps. Reducing the water consumption in biopharmaceutical processes is critical to drive
Process water from a Swedish thermomechanical pulp mill was purified by consecutive treatment by microfiltration, ultrafiltration and nanofiltration. In the present study the nanofiltration step was studied. The flux and retention of four nanofiltration membranes were compared. The NF99HF membrane (Alfa Laval, Lund, Sweden), had significantly higher flux and higher retention of lignin and charged
We present a method that allows enabling matrix element corrections (MECs) in Pythia8 with MC@NLO matching, without incurring double counting. MECs are an interesting feature that may contribute to the accuracy of theoretical predictions, alongside matching and merging. We directly compare our method to a specific choice of settings in Pythia8, which can remove double-counting for MECs in certain
Popular Abstract in Swedish Robust konstruktion handlar om hur produkter skall konstrueras för att bli okänsliga mot oväntade störningar och variationer i t.ex. omgivningen under drift. Normalt har detta problem angripits med den sk. Taguchi-metoden, i vilken experiment utförs efter en viss metodik på en prototyp, varefter produktens beteende kartläggs och konstruktionsvariablerna väljs så att ettThe activity of robust design of mechanical products and how it can be accomplished in pre-prototype design phases, is discussed in this thesis. It is advocated that to be fully efficient and effective optimization of product robustness should commence already in the conceptual design phase. Moreover, since product optimization is a process, robust design should be perceived and implemented as a p
Popular Abstract in Swedish Diskret händelsebaserad simulering av tillverkningssystem är sällan använd i utvecklingsprocessen av tillverkningssystem. Många gånger dras slutsatsen att analyser som involverar simulering i sig själv ger ökade kostnader. Detta synsätt är inte korrekt eftersom analyser måste göras ändå. I denna avhandling visas på metoder att utnyttja simuleringstekniken genom tillverkDES is seldom used in the manufacturing system development process, instead it is usually used to cure problems in existent systems. This has the effect that the simulation study alone is considered being the cost driver for the analysis of the manufacturing system. It is argued that this is not a entirely correct view since the analysis has to be performed anyway, and the cost directly related to
A simulation program has been developed and used to study the condensate treatment process in a kraft pulp mill consisting of a stripper, a methanol column and a decanter. The simulations require rigorous models for vapor-liquid and liquid-liquid equilibrium calculations. The Wilson equation and the NRTL equation (non random two liquids) have been used for these calculations New data were included
The current and future emissions regulations and demands on internal combustion engines have increased the need for improvement of the thermal design and engine ef ciency. This paper reports an initial investigation concerning in-cylinder heat transfer. In addition, a literature review in this eld is presented. It was found that no extensive application studies have been performed on full cylinder
Retailing Retold offers an alternative approach to the analysis of how international retail images are translated across national boundaries. The approach extends the view on image in previous research as an instrument for monitoring the effects of marketing strategies on consumers’ perceptions of the retailer. Instead, it suggests that the usefulness of image resides in its ability to capture the
This thesis is based on the work that was done during 1992--1996 at the DELPHI detector at LEP. Its main parts are outlined below. The brief Introduction gives an overview of the science of Particle Physics, its development and contemporary status. The first chapter represents an introduction to the DELPHI detector at LEP, describing the main features of the LEP machine and the DELPHI detector a
Twenty-four children (aged 5 months to 18 years) who were admitted to a university hospital were observed for a total of 135 hours with the aim of describing their degree of participation in decisions concerning their own care. Grading of their participation was made by using a 5-point scale. An assessment was also made of what was considered as optimal participation in each situation. The results
Background: Metabolic reprogramming, particularly glycolysis, is essential in processes like cancer and immune response. While FGF21's role in hepatocyte glucose metabolism has been linked to glucose transporters and its impact on aerobic glycolysis and cellular growth in HCC remain unclear. In this study, we investigated FGF21-mediated modulation of glucose metabolism in HCC through mTOR and HIF1
Industrial symbiosis (IS) holds significant potential to reduce resource consumption and improve economic efficiency within process industries. Previous studies have shown that innovative solutions play an important role in advancing IS. However, the role of policy instruments promoting innovation has not yet been systematically analysed in relation to industrial symbiosis. This study takes a deep
