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In pharmaceutical biotechnology, ultrafiltration with diafiltration for recovery of fermentation products on an industrial scale is now the state-of-the-art technology. To optimise this process, DSS has developed two new concepts: (1) an optimised control system for constant permeate concentration even at varying feed streams and (2) continuous counter-current diafiltration to significantly reduce

The membrane market for the food and beverage industry of which the wine market has a significant share developed to the second largest market after municipal water treatment in Europe. The trend in the wine market towards larger volumes combined with an improved quality leads to a constant investment for upgrading and updating present product facilities. There are several interesting positions of

The formation age of the large (∼50 km) Carswell impact structure, Canada, has been a matter of debate ever since its discovery five decades ago, with proposed ages ranging from Mesoproterozoic to Early Cretaceous. Here, we present new 40Ar-39Ar data for aliquots of euhedral adularia, separated from vesicles in an impact melt rock from the central uplift of the structure. The analyses of the adula

Potential applications of membrane technology for the beverage industry will be presented by two case studies. The focus of the first case study is on the clarification and concentration of fruit juice. A novel combination of a centrifuge with ultrafiltration for the clarification will be discussed together with the combination of an evaporator combined with reverse osmosis for the concentration.

Objective—To determine medium-term outcome after arterial switch operation for complete transposition in a population-based cohort.Design—Retrospective study of all 86 patients operated on at our institution from 1982 to 2000. Age at operation was 0-256 days (median 6 days); 28 (32%) had closure of a ventricular septal defect, 2 of whom had double outlet right ventricle. Additional surgery include

UV (240-370 nm) and IR (3200-1500 cm-1) absorption cross-sections of HCHO, HCDO, and DCDO in abath gas of N2 at atmospheric pressure and 296 K are reported from simultaneous measurements in the twospectral regions. Cross-sections were placed on an absolute scale through quantitative conversion offormaldehyde to CO and HCOOH by titration with Br atoms, also monitored by FTIR. The integrated UVabsor

The photolysis rates of HCHO, DCDO, CH3CHO, and CH 3CDO are studied by long-path FTIR spectroscopy in natural tropospheric conditions at the European Photoreactor Facility (EUPHORE) in Valencia, Spain. Average relative photolysis rates jHCHO/j DCDO = 3.15 ± 0.08 and jCH3CHO/jCH3CDO = 1.26 ± 0.03 are obtained from three days of experiments for each reaction in the period June 17 to July 7, 2006.

Relative rate techniques were used to study the title reactions in 930–1200 mbar of N2 diluent. The reaction rate coefficients measured in the present work are summarized by the expressions k(Cl + CH2F2) = 1.19 × 10−17 T2 exp(−1023/T) cm3 molecule−1 s−1 (253–553 K), k(Cl + CH3CCl3) = 2.41 × 10−12 exp(−1630/T) cm3 molecule−1 s−1 (253–313 K), and k(Cl + CF3CFH2) = 1.27 × 10−12 exp(−2019/T) cm3 molec

Long path length FTIR-smog chamber techniques were used to measure k(OH + cis-CF3CHCHF) = (1.20 ± 0.14) × 10−12 and k(O3 + cis-CF3CHCHF) = (1.65 ± 0.16) × 10−21 cm3 molecule −1 s−1 in 700 Torr of N2/O2 diluent at 296 K. The OH initiated oxidation of cis-CF3CHCHF gives CF3CHO and HCOF in molar yields which are indistinguishable from 100%. The atmospheric lifetime of cis-CF3CHCHF is determined by it

I DEN DIVERSIFIERADE STADEN, hur kan vi planera och bygga platser för gemenskap som inte är beroende av social och kulturell likhet? I en tid då offentliga samtal förs kring segregation och utan-förskapsområden, aktualiseras frågor kring den fysiska miljöns betydelse för människors lika livsvillkor. I avsaknad av mer genomgripande lösningar kring boendesegregation har de offen-tliga rummen hamnat HOW CAN WE PLAN AND DESIGN FOR community in diverse urban situations? In response to segregation and social fragmentation, public space is increasingly being conceived of as a vehicle for fostering openness towards differences, both in planning practice and theory. Drawing on two recent public space projects – Superkilen in Copenhagen, Denmark, and Jubileumsparken in Gothenburg, Sweden – this thes

The properties of laser wakefield accelerated electrons in supersonic gas flows of hydrogen and helium are investigated. At identical backing pressure, we find that electron beams emerging from helium show large variations in their spectral and spatial distributions, whereas electron beams accelerated in hydrogen plasmas show a higher degree of reproducibility. In an experimental investigation of

Electron holographic tomography was used to obtain three-dimensional reconstructions of the morphology and electrostatic potential gradient of axial GaInP/InP nanowire tunnel diodes. Crystal growth was carried out in two opposite directions: GaInP–Zn/InP–S and InP–Sn/GaInP–Zn, using Zn as the p-type dopant in the GaInP but with changes to the n-type dopant (S or Sn) in the InP. Secondary electron

This paper examines gender differences in everyday stress among parents in Sweden. Recently, maternal stress has become a public health concern. One of the explanations to why mothers more than fathers get stress-related diagnoses is the unequal division of labor at home. This paper investigates mothers’ and fathers’ time allocation and its association with everyday stress in Sweden, using time di