Hannes Zebedin: Living in Glass Houses

Catalogue essay for Hannes Zebedin exhibition at Secession, Vienna. The essay explores Zebedin's work in relationship to civic life and third sector economies

Testmanual IMPEQT-MOBAQ. Motorische Basisqualifikationen in der 7. und 8. Klasse

Das vorliegende Manual beschreibt ein Instrument zur Erfassung motorischer Basisqualifikationen als Mindestvoraussetzungen zur aktiven Teilhabe an der Bewegungs-, Spiel-­ und Sportkultur. Das Instrument basiert auf ursprünglich für die 5. Jahrgangsstufe entwickelten Testaufgaben und wurde für einen Einsatz in der 7. Jahrgangsstufe angepasst

Artificial infestation of grape berry and grape vine moth : a new method to assay the efficacy of insecticides in grape vines

Bei der Prüfung von Insektiziden gegen die Traubenwickler Lobesia botrana DEN. & SCHIFF. und Eupoecilia ambiguella HBN. (Lepidoptera: Tortricidae) im Freiland ist ein ausreichender Befall mit den Schadinsekten notwendig, um statistisch auswertbare Ergebnisse zu erzielen. Dem steht jedoch ein jährlich stark wechselnder Befallsdruck und ein oft stark geklusterter Befall, selbst innerhalb einer eng umgrenzten Rebanlage, entgegen. Hinzu kommen erhebliche Probleme mit dem richtigen Timing der Behandlung, bedingt durch eine sehr lange Flugzeit der Traubenwicklerarten, was häufig zu einer geringen Effizienz und schlechten Vergleichbarkeit der Mittel führt. Für die Entwicklung von Insektiziden bedingen diese Voraussetzungen eine große Anzahl von Versuchen, die mit hohen Kosten verbunden sind Abhilfe kann für viele Fragestellungen ein künstlich erzeugter Befall geben. Die Methode soll hier kurz vorgestellt und die Anwendung exemplarisch an Versuchen mit beiden Traubenwicklerarten dargestellt werden.For a proper evaluation of insecticides against Lobesia botrana DEN. & SCHIFF. and Eupoecilia ambiguella HBN. (Lepidoptera: Tortricidae) in the field, a sufficient infestation is necessary. Unfortunately, the degree of infestation varies from year to year and is not even uniform in one vineyard. Furthermore, the timing of the application is quite difficult, because of the long flight period of these species. This often results in a poor efficacy and comparability of the products tested. We therefore developed a method to artificially infest flower or fruit clusters. Pieces of wire covered with green plastic were placed in cages with adult moths. This material was found to be an excellent substrate for egg laying in both species. These sticks, covered with eggs, were transferred to the study areas and carefully mounted individually at grape bunches. This method caused a quite uniform infestation within the whole experimental blocks and allowed a proper determination of the optimal time of application. Yet another advantage is that experiments can be done independently from the natural infestation and flight period. It is possible to vary the time of the exposition of the “egg stick” in the field, the hatch of the larvae and the application itself. This allows to study a variety of problems, such as the optimisation of the time of application and the estimation of the residual activity (persistency) of products

Leistungsmessung an Bord von Fischereifahrzeugen zur Kontrolle der 300-PS-Begrenzung in der Schollenbox

For monitoring of the engine power of fishing vessels permitted for fishery in the plaice box with engine power of 300 HP or less at sea three different portable power measurement systems are developed and tested. A system measuring the twist of the propeller shaft by two divisible gearwheels mounted on the shaft worked well at shafts with roller bearing at both sides of the measured interval of 100–300 mm length. Only at a very few fishing vessels this system is applicable and therefore for monitoring purposes not suitable. The application of a commercial available system measuring the stress at the surface of the shaft was simplified for application by non experts. The torque is measured by strain gauges. The calibration of the system, measuring and recording of the power is done by a PC automatically. A small polished facet on the shaft protected against oxidation is needed for easy and quick application. In this case the system can be used by technical personnel of supervision boats for monitoring of the engine power at sea in a short time. A third power measurement system determinates the torque by measuring the displacement of two supports clamped on the shaft at a distance of 100 mm. The displacement is measured by a micrometer gauge mounted on one of the supports. Readout of the rotating gauge display is possible taking advantage of stroboscopic effect. The system needs no conditioning of the shaft and can be used by non technicians. The development is not finished until now and some additional investigations and tests are required. Additional measures for monitoring of the power on fishing vessels by self recording power measurement systems and sealed fuel racks with limited injection are reported and discussed

Benutzerhandbuch leJOS Statemachine Toolkit

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