Sökresultat

Filtyp

Din sökning på "*" gav 530907 sökträffar

The FERRUM project: radiative lifetimes of the 3d(5)(S-6)4s4p(P-3)y P-6 degrees states of FeII measured with time-resolved vacuum ultra-violet laser spectroscopy

We report on lifetime measurements of the 3d(5)(S-6)4s4p(P-3)y P-6 degrees states of Fe II using time-resolved vacuum ultraviolet (VUV) laser spectroscopy. A laser-produced plasma has been used as the source of free Fe+ ions. The tunable VUV radiation was obtained employing resonantly enhanced sum-difference four-wave-mixing of short laser pulses. We obtained tau((6)P(3/2)degrees) = 3.90(20) ns, t

”Med coleurt omslag” : färgade, dekorerade och tryckta omslag på svensk bokmarknad 1787-1846. En bokhistoria.

Popular Abstract in Swedish Nuförtiden är det tryckta bokomslaget en självklar del av boken som produkt och konsumentvara. I avhandlingen studeras etableringen av bokomslaget och dess betydelse för omstruktureringen av bokmarknaden i Sverige decennierna kring 1800. Från mitten av 1700-talet blev den färdigbundna boken en betydelsefull del av bokhandelns utbud. Förlag och bokhandel började sälja deThe aim of the dissertation is to examine the significance of the paperbound book on the book market as part of the history of consumption. It is an examination of the materiality of the book, in which the form and function, economics and distribution of the binding during the last century of the hand-press era are studied. The intention has been to show that the ready-bound book was a means for t

The influence of perioperative care and treatment on the 4-month outcome in elderly patients with hip fracture.

The purpose of this descriptive cohort study was to identify perioperative risk factors associated with postoperative outcome up to 4 months after surgery in elderly patients with hip fracture. Data were collected prospectively through the Swedish National Hip Fracture, the local Acute and Emergency, and Anesthesia registers, and retrospectively from medical and nursing records. The 428 patients (

Complications to thyroid surgery: results as reported in a database from a multicenter audit comprising 3,660 patients.

BACKGROUND AND AIM: During recent years, more radical surgery for thyroid disease, i.e., total instead of subtotal resection, has been evident. Results following this strategy on national levels are scarce. MATERIALS AND METHODS: From 2004 to 2006, 26 Scandinavian Departments registered 3,660 thyroid operations in a database. Risk factors for complications were analyzed with multiple logistic regr

Some structural properties of convolutional codes over rings

Convolutional codes over rings have been motivated by phase-modulated signals. Some structural properties of the generator matrices of such codes are presented. Successively stronger notions of the invertibility of generator matrices are studied, and a new condition for a convolutional code over a ring to be systematic is given and shown to be equivalent to a condition given by Massey and Mittelho

No title

Abstract in Danish Kronikk om trend til sammenkoblede artikler i ph.d. afhandlinger i stedet for monografier, især om kriterier for 'publicerebare' artikler i indhold.

Intracranial pressure following resuscitation with albumin or saline in a cat model of meningitis.

OBJECTIVE:: To compare the intracranial pressure after resuscitation to normovolemia by using 20% albumin or normal saline in a cat model of meningitis. DESIGN:: Prospective, randomized animal study. SETTING:: University hospital laboratory. SUBJECTS:: Twenty adult, male cats. INTERVENTIONS:: Meningitis was induced by intrathecal injection of Escherichia coli-derived lipopolysaccharide (0.8 × 10 u

Reduced Order Models for On-Line Parameter Identification of the Activated Sludge Process

A reduced order dynamic model for an activated sludge process performing carbonaceous removal, nitrification, and denitrification is proposed. Based on directly measurable real time data - by methods available today - all model parameters are identified on-line. A simplified extended Kalman filter is used for the actual identification. Verification of the results is based on computer simulations o

Household salt as a retrospective dosemeter using optically stimulated luminescence.

The aim of this work was to investigate the potential of a selection of household salts (NaCl) as a retrospective dosemeter for ionising radiation using optically stimulated luminescence (OSL). The OSL-response of five brands of salt to an absorbed dose in the range from 1 mGy to 9 Gy was investigated using a Risø TL/OSL-15 reader and a (60)Co beam, allowing low dose-rate irradiations. The salt wa