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In this document, a large number of mathematical models describing various physical, biological and chemical processes in a wastewater treatment plant are presented. In most cases, the models are fairly simple as they are inteded for steady-state simulations based on yearly averages of the influent wastewater charteristics. The combination of models forms a software tool namned URWARE (URban WAter
A stirred tank membrane reactor is used to study the kinetics of polygalacturonic acid (PGA) enzymatic hydrolysis. The reactor operates in semicontinuous configuration: the native biopolymer is loaded at the initial time and the system is continuously fed with the buffer. The effect of retention time (from 10 1 to 142 min) and membrane molecular weight cutoff (from I to 30 kDa) on the rate of perm
Den svenska straffprocessen bygger i dag på en i huvudsak ackusatorisk ordning, där åklagaren ansvarar för utredningen medan domstolen har det yttersta ansvaret för att pröva skuldfrågan och bestämma påföljd. Genom införandet av strafflindring enligt 29 kap. 5 a § BrB har incitament skapats för misstänkta att lämna uppgifter om både egen och annans brottslighet. Uppsatsen analyserar hur sådana uppThe Swedish criminal procedure is currently primarily accusatorial, in which the prosecutor is responsible for the investigation, while the court has the ultimate responsibility for determining guilt and imposing a sentence. The introduction of mitigation of a sentence under Chapter 29, Section 5a of the Swedish Penal Code has created incentives for the prosecuted person to provide information abo
Background/Aim: The Kingdom of Cristal, an area in southern Sweden, is historically heavily burdened by heavy metals. Cadmium, lead, mercury and arsenic have previously been used in glass production and large amounts of glass crust have been deposited around the Kingdom of Cristal and used as filling material for the construction of new residential areas, parks and schools. The purpose of the proj
Europeans have tried for decades to find a way to take a mutual stance on issues of higher education and its development. In terms of taking on the challenge of such a mutual commitment with respect to higher education, the Bologna process is a giant step for the European Union. It involves a large number of countries, representing a great variety of higher education systems, which are currently e
The relay autotuner for PID control is based on the simple idea of investigating process dynamics by the oscillation obtained when the PID controller is replaced by a relay unction. In this paper an asymmetric relay function is used, which provides an equation for the static gain of the process. A method to find the normalized time delay is proposed and the benefits of this is discussed. Ways to f
This contribution presents a modeling and optimization method for multi-column counter-current purification (MCSGP) processes. The model is based on conventional column models and by using the symmetric and cyclic steady state characteristics of the process a single column analog model was developed. The model have been used for dynamic optimization of the MCSGP process. The optimization was based
BACKGROUND: The majority of clinical trials regarding post-operative pain treatment focuses on the average analgesic efficacy, rather than on efficacy in individual patients. It has been argued, that in acute pain trials, the underlying distributions are often skewed, which makes the average unfit as the only way to measure efficacy. Consequently, dichotomised, individual responder analyses using
We present the complete automation of the computation of one-loop QCD corrections, including UV renormalization, to an arbitrary scattering process in the Standard Model. This is achieved by embedding the OPP integrand reduction technique, as implemented in CutTools, into the MadGraph framework. By interfacing the tool so constructed, which we dub MadLoop, with MadFKS, the fully automatic computat
This contribution introduces a new perspective on the modelling of settling behaviour aimed at providing a unified description of the processes taking place both in primary and secondary settling tanks for a more detailed operation and control in Water and Resource Recovery Facilities (WRRFs). First, experimental evidence is provided pointing out the flocculation
Hepatitis B virus (HBV) infection remains a major public health threat in the Middle East and North Africa (MENA). Phylogenetic analysis of HBV can be helpful to study the putative transmission links and patterns of inter-country spread of the virus. The objectives of the current study were to analyze the HBV genotype/sub-genotype (SGT) distribution, reverse transcriptase (RT), and surface (S) gen
The search for new interactions and particles in high-energy collider physics relies on precise background predictions. This has led to many advances in combining precise fixed-order cross-section calculations with detailed event generator simulations. In recent years, fixed-order qcd calculations of inclusive cross sections at n3lo precision have emerged, followed by an impressive progress at pro
Digital images are an intuitive way to capture, store and analyse organismal phenotypes. Many biologists are taking images to collect high-dimensional phenotypic information from specimens to investigate complex ecological, evolutionary and developmental phenomena, such as relationships between trait diversity and ecosystem function, multivariate natural selection or developmental plasticity. As a
Ulrika Nilsson Accidents CRISTER CEBERG Do accidents happen? …in radiotherapy? Well-known events from 1974-2001 1. Inadequate training of a physicist (log vs. lin) 2. Lack of in-house audit 3. Inadequate training and lack of communication 4. A company that did not recognise and communicate problems reported by users 5. A technician/technologist initiated a repair without reporting to physics/maint
https://www.msf.lu.se/sites/msf.lu.se/files/16._olyckor.pdf - 2026-07-17
Microsoft Word - Naturvetenskaplig masterexamen Geologi 120 hp HT 2008 eng.doc Facu l ty ofSc ience Master of Science in Geology 1. Details of Programme 1:1 Programme of study for the degree of Master of Science (Two Years) Main field: Geology Title in Swedish: Naturvetenskaplig masterexamen Huvudområde: Geologi 1:2 Scope in higher education credits 120 higher education credits at Lund University
https://www.geology.lu.se/sites/geology.lu.se/files/naturvetenskaplig_masterexamen_geologi_120_hp_ht_2009_eng.pdf - 2026-07-17
