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An analytical method for calculating the thermal conductivity of a twin pipe in district heating system

In this paper a simple analytical method is introduced for calculating the overall thermal conductivity of a twin pipe in district heating network. The method is developed based on calculating the conductive and convective heat transfer around the casing pipe in different perimetral sections. Temperature inside the supply and return pipes and also over the heating pipe is measured on different poi

Introduktion - Fyra aktuella frågor. Språket, aktivismen, korruptionen och "splittringen"

10TAL nr 17/18 Ukraina är en unik intro­duk­tion till sam­tida ukrainsk lit­te­ra­tur, konst och kul­tur­de­batt. Vi pre­sen­te­rar 25 ukrainska för­fat­tare, över­sät­tare och konst­nä­rer, som alla på ett eller annat sätt för­hål­ler sig till kri­get, inva­sio­nen och lit­te­ra­tu­rens roll i dagens Ukraina. 10TALs num­mer är det första någon­sin som helt foku­se­rar på Ukrainas sam­tida lit­te­

Conceptual design of the AGATA 1π array at GANIL

The Advanced GAmma Tracking Array (AGATA) has been installed at the GANIL facility, Caen-France. This set-up exploits the stable and radioactive heavy-ions beams delivered by the cyclotron accelerator complex of GANIL. Additionally, it benefits from a large palette of ancillary detectors and spectrometers to address in-beam γ-ray spectroscopy of exotic nuclei. The set-up has been designed to coupl

Acute respiratory effects and biomarkers of inflammation due to welding-derived nanoparticle aggregates

PURPOSE: Welders are exposed to airborne particles from the welding environment and often develop symptoms work-related from the airways. A large fraction of the particles from welding are in the nano-size range. In this study we investigate if the welders' airways are affected by exposure to particles derived from gas metal arc welding in mild steel in levels corresponding to a normal welding day

Particle sizing and biokinetics of interstitiallymphoscintigraphic agents

The biokinetics of inert lymphoscintigraphic agentsstrongly depends on their particle size. Different techniques for characterization of colloids are discussed. Experiments have been performed on eight different colloids. The particle size has been investigated with scanning electron microscopy. Activity distributions have been obtained with ultrafiltration and gel-column scanning technique. The c

The effect of total body microwave hyperthermia and hepatic artery ligation on liver tumors—an experimental study in rats

The effect of general microwave hyperthermia and hepatic artery ligation (HAL) was tested on Wistar rats with a transplanted N‐methyl‐N‐nitroso‐guanidine‐induced adenocarcinoma in the liver. Total body hyperthermia (41.5°C for 1 hour, three times during 24 hours) was given on the same day as HAL, and 1, 2, and 3 days after. HAL induced a slower tumor growth than untreated controls. No additive eff

Evaluation of renal function parameters with simultaneously administered 99mTc-DTPA and 131I-hippuran

The present study aimed at comparing two renal function tests using 99mTc-DTPA (diethylene triamine penta acetic acid) and 131I-labeled hippuran (o-hippuric acid). A mixture of 80 Mbq 99mTc-DTPA and 7.4 MBq 131I-hippuran in a total volume of 1.5 ml or less was injected into an arm-vein. Both radiopharmaceuticals have identical intitial distributions in the blood pool when injected in this manner.

Spatial trends of extreme precipitation events in the Paraná river basin

This work presents an analysis of the observed trends in extreme precipitation events in the Paraná River basin (PRB) from 1977 to 2016 (40 yr) based on daily records from 853 stations. The Mann–Kendall test and inverse-distance-weighted interpolation were applied to annual and seasonal precipitation and also for four extreme precipitation indices. The results show that the negative trends (signif

Systematic Data Analysis for Multinational Case Study Research

We describe the process behind a large international research project using a case study approach. We discuss how the basic idea behind the project was developed, as well as the planning and implementation of the field study, including a number of challenges that we faced during the data collection and data analysis phases. We discuss how using an initial conceptual model, the extensive qualitativ

The Swedish Academy #MeToo Scandal and the Reputation of the Nobel Prize

In May 2018, the Swedish Academy was engulfed in a #MeToo scandal that threatened its reputation, especially its reputation as the organization that awards the Nobel Prize in Literature. This scandal, which was first revealed in the previous November, also raised questions about the reputation of the Nobel Prize. The case is about reputation and crisis management, and more specifically about “repu

Cascading proton transfers are a hallmark of the catalytic mechanism of SAM-dependent methyltransferases

The S-adenosyl-L-methionine (SAM)-dependent methyltransferases attach a methyl group to the deprotonated methyl lysine (Kme0) using SAM as a donor. An intriguing, yet unanswered, question is how the deprotonation of the methyl lysine takes place which results in a lone pair of electrons at the Nϵ atom of the methyl lysine for the following methyl transfer. PRDM9, one of the few methyltransferases

Teaching Note: The Swedish Academy #MeToo Scandal and the Reputation of the Nobel Prize

A classroom guide to teaching the case, “The Swedish Academy #MeToo Scandal and the Reputation of the Nobel Prize” (HBS No. 5-919-410). A fictional case protagonist must present his evaluation to the Nobel Foundation of the scandal affecting one of the Nobel independent network members and its implications for the Foundation. Key issues include the reputational effects of the Swedish Academy scand

The Reputation of the "World's Most Prestigious Award": The Nobel Prize

At its heart, this is a case about the reputation of an international symbol of achievement and about managing an iconic brand. The case provides insights into the nature of a prestigious “heritage brand” and its challenges and opportunities to remain relevant and differentiated in the 21st century. In “protecting and safeguarding the standing of the Nobel Prize” the executive board faced the para

Teaching Note: The Reputation of the "World's Most Prestigious Award": The Nobel Prize

At its heart, this is a case about the reputation of an international symbol of achievement and about managing an iconic brand. The case provides insights into the nature of a prestigious “heritage brand” and its challenges and opportunities to remain relevant and differentiated in the 21st century. In “protecting and safeguarding the standing of the Nobel Prize” the executive board faced the para