Distributed generation, DG, introduces multi-generator grids and new modes of operation. DG will likely introduce power electronic, PE, converters on a large scale at the low- and medium-voltage levels. DC injection into the AC grid is a threat from grid-connected PE converters that are badly structured. Low DC currents in AC current are difficult to measure at those low levels decided in IEEE™ 15

Abstract in Danish Da Fukushima-katastrofen ramte Japan i dagene efter d. 11. marts 2011, forbløffede det medier i resten af verden, hvordan de japanske massemedier valgte at dække den meget alvorlige og eskalerende begivenhed. Mens vestlige nyhedsmedier efterspurgte større åbenhed og mere substans i de sparsomme informationer, de japanske myndigheder og TEPCO offentliggjorde, virkede de japanske

Popular Abstract in Swedish Helicobacter pylori är troligen världens vanligaste bakterieinfektion och mer än 50% av jordens befolkning är infekterad. Bakterien orsakar kronisk magkatarr vilket kan utvecklas till sår både i magsäcken och i tolvfingertarmen, samt till magcancer. Behandling med antibiotika, som dödar bakterien, och syrahämmande läkemedel har revolutionerat behandlingen av magsår, somThe Gram-negative genus of Helicobacter consists of many bacterial species that colonize a wide range of animal hosts. The genus can be divided into gastric species that colonize the stomach, and enteric species that preferentially colonize the colon and biliary tree of various animal hosts. Helicobacter pylori cause gastritis, gastro-duodenal ulcer disease and gastric adenocarcinoma and lymphoma

Popular Abstract in Swedish Den vertikala fördelningen av näringsupptaget hos gran (Picea abies (L.) Karst.), bok (Fagus sylvatica L.) och skogsek (Quercus robur L.) och har undersökts i södra Skandinavien. Två olika metoder har används. Med den första metoden uppskattades trädets näsringsupptag på olika markdjup genom att bestämma fördelningen av rötterna och det externa ectomycorrhizamycelet (EEThe vertical distribution of the nutrient uptake of Norway spruce (Picea abies (L.) Karst.), European beech (Fagus sylvatica L.) and pedunculate oak (Quercus robur L.) has been investigated in southern Scandinavia. Two approaches were employed. The first involved estimation of the nutrient uptake capacity of the trees at different soil depths by determining the distributions of roots, external ect

Subcortical Stroke is a new and fully revised edition of Lancunar and Other Subcortical Infractions(OUP, 1995). Stroke is one of the most common causes of death and subcortical stroke accounts for 20-30% of all cerebrovascular infarcts. Our understanding of stroke processes in general, and subcortical stroke in particular, has advanced considerably in recent years. Research findings from the field

The article presents Nina Sadur's artistic biography, connecting important events in her life to key passages in her texts. The article is based on recorded interview material, published criticism and a reading of her oeuvre.

The Garden Warbler is a classic subject for the study of Palaearctic-African bird migration strategies. Most studies have considered the situation close to the breeding areas, while the African and especially the sub-Saharan part of the species' migration have received comparatively little attention. Here we use autumn and spring ringing data from Nigeria and The Gambia to study the movements and