High-pressure behaviour of an X-ray preionized discharge pumped XeCl laser

The output characteristics are described of an X-ray preionized discharge pumped XeCl laser, fed by a low-impedance pulse forming line (PFL), at pressures up to 12 bar. The influence of a multichannel rail gap placed between the PFL and the laser head on the output energy was studied. We found an increase of output energy with increasing pressure up to 8 bar. At higher pressures a saturation behaviour was found. The maximum output energy per unit volume was 6.5 J/l

Über die Kleinseen im Flußgebiet der Alm und Steyer

ÜBER DIE KLEINSEEN IM FLUSSGEBIET DER ALM UND STEYER Über die Kleinseen im Flußgebiet der Alm und Steyer ( - ) Einband ( - ) Titelseite ( - ) Inhalt. ( - ) I. Die Kleinseen im Flußgebiet der Alm und Steyer. ([361]) Vorwort. ([361]) 1. Der Almsee. (363) [Karte]: Karte des Almsees nach der Katastralmappe ergänzt für den Stand von 1920 (364) [Abb.]: Abb.1 Almsee: Die schwimmende Insel im Juli 1927. (366) Der große Ödensee. (375) [Karte]: Abb. 2. (376) 3. Der kleine Ödensee. (377) 4. Der Gleinkersee. (378) [Abb.]: Abb. 3. (378) 5. Der Schafferteich. (381) 6. Der Brunnsteinsee. (382) 7. Almtümpel am Waschenek, oberhalb der Dümlerhütte. (383) 8. Der große Feichtauersee. (383) 9. Der kleine Feichtauersee. (384) 10. Übersicht. (385) [Tabelle]: ...verschiedenartige Zusammensetzung der Kleinfauna in den einzelnen beschriebenen neun Gewässern... (386) 11. Erklärung der Tafeln. (388) [Abb.]: Tafel I. (390) [Abb.]: Tafel II. (391) [Abb.]: Tafel III. (392) [Abb.]: Tafel IV. (393) [Abb.]: Tafel V. (394) II. Die Milbenfauna der Kleinseen im Flußgebiet der Alm und Steyer. ([395]) 1. Die Verteilung der Milbenformen. ([395]) Gebiet der Alm. ([395]) Gebiet der Steyer. (396) 2. Die aufgefundenen Arten. (397) 1. Porohalacarus hydrachnoides (Lohmann). 2. Sperchon squamosus Kramer. 3. Teutonia primaria Koenike. 5. Lebertia (Hexa) dubia Thor. 6. Gnaphiscus setosus Koenike. (397) 7. Limesia koenikei Piersig. 8. Hygrobates longipalpis (Herm.). (398) 9. Hygrobates forelli (Leb.) (398) 10. Neumania limosa (C. L. Koch). 11. Hydrochoreutes krameri Piersig. 13. Forelia cetrata Koenike. 14. Forelia parmata Koenike. 15. Piona disparilis (Koenike). 16. Brachypoda versicolor (O. F. Müller). (400) 17. Arrhenurus membranator Thor. (400) 18. Gamasus spec. 19. Orbiata sphagni Mich. 20. Hydrozetes converfae (Schr.). 21. Malaconothrus globiger Träg. 22. Malaconothrus sphagnicola Träg. 23. Glyciphagus domesticus (de Geer). (402) 3. Oecologisches. (402) [Tabelle]: ...Auftreten der aufgefundenen Milbenformen in den verschiedenen Seen des Untersuchungsgebietes... (403) [Abb.]: Tafel VI. (409) Einband ( -

Hybrid Control of a Bioreactor with Quantized Measurements: Extended Version

We consider the problem of global stabilization of an unstable bioreactor model (e.g. for anaerobic digestion), when the measurements are discrete and in finite number ("quantized"), with control of the dilution rate. The model is a differential system with two variables, and the output is the biomass growth. The measurements define regions in the state space, and they can be perfect or uncertain (i.e. without or with overlaps). We show that, under appropriate assumptions, a quantized control may lead to global stabilization: trajectories have to follow some transitions between the regions, until the final region where they converge toward the reference equilibrium. On the boundary between regions, the solutions are defined as a Filippov differential inclusion. If the assumptions are not fulfilled, sliding modes may appear, and the transition graphs are not deterministic

Surfaces and Interfaces for Renewable Energy

Energy is a growing need in today’s world. Citizens and governments are increasingly aware of the sustainable use that must be made of natural resources and the great negative impact on the environment produced by conventional energies. Therefore, developments in energy systems based on renewable energies must be carried out in the very near future. To ensure their sustainability, they must be made of durable materials, and for this, the study of coatings is extremely important. This is also vital in systems based on solar energy, where the optical properties of the materials must be preserved as long as possible, and to this must be added the fact that they tend to be installed in very aggressive environments from the point of view of corrosion. Therefore, this special issue aims to contribute to the development of this challenge

A perfect storm: An archaeological management crisis in the Mississippi River Delta

Engineered projects resulting in unintended consequences, coastal erosion, subsidence, and sea-level rise are rapidly destroying archaeological sites in the Mississippi River Delta (MRD). The processes of site obliteration are intensifying and accelerating due to anthropogenic transformation of the environment, including cumulative engineered alterations of the landscape and climate change. Combined with increased inundation and erosion from storm surges, hundreds of terrestrial sites formerly located on natural levees, barrier islands, and other coastal landforms are progressively eroded, redeposited, deeply buried, and submerged. These include thousand-year-old earthen mounds and shell middens constructed by Native Americans, as well as centuries-old fishing communities along the coast. These irreplaceable cultural properties can provide crucial information on the unique history and ecology of the MRD. Ongoing studies include consulting with interested parties and implementing data sharing agreements. Re- searchers have formed a consortium of universities and state and federal agencies, and are partnering with culturally affiliated Native American tribes, descendant groups, and coastal communities. The consortium is developing a robust GIS-enabled risk matrix for analyzing threats and effects to endangered sites. It is using the risk matrix to select 30 sites for monitoring, assessment, aerial photogrammetry, and recording environmental data on water table fluctuations. Analysis of action-based scientific data on these imperiled and rapidly disappearing places is urgently needed and will provide the impetus and baseline for future studies. Otherwise, ongoing site destruction will erase any remaining opportunities for learning about Louisiana’s deep history and diverse cultural heritage

Kollokationen in deutschen Wörterbüchern und in der deutschen Wörterbuchforschung

This contribution article focuses on German-language collocation research and lexicographic practice from a corpus linguistic perspective. Although there is no dictionary called “Deutsches Kollokationswörterbuch” (German collocation dictionary), the collocation perspective acquires increasing popularity in linguistic research and dictionary work in the German-speaking area. On the one hand, this tendency is due to the growing number of studies dealing with German as a contrast language and works on foreign language didactics. On the other hand, powerful electronic resources such as large corpora and lexical databases, which are nowadays available for the German language, are recognised as a valuable empirical basis. Nevertheless, the application of novel corpus linguistic methods in lexicographic practice is still unsatisfactory. Therefore, this article concludes by discussing innovative aspects of corpus linguistic empirical research on the basis of collocations. These ideas are presented as an incentive for further research as well as practical application

Soybean composition as affected by variety and weather, and its importance in the world market

Ohio Soybean Counci