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The use of semi-autonomous Unmanned Aerial Vehicles (UAV) to support emergency response scenarios, such as fire surveillance and search and rescue, offers the potential for huge societal benefits. However, designing an effective solution in this complex domain represents a "wicked design" problem, requiring a careful balance between trade-offs associated with drone autonomy versus human control, mission functionality versus safety, and the diverse needs of different stakeholders. This paper focuses on designing for situational awareness (SA) using a scenario-driven, participatory design process. We developed SA cards describing six common design-problems, known as SA demons, and three new demons of importance to our domain. We then used these SA cards to equip domain experts with SA knowledge so that they could more fully engage in the design process. We designed a potentially reusable solution for achieving SA in multi-stakeholder, multi-UAV, emergency response applications.

Even though compound 6 is extremely sensitive towards air it is thermally very stable and melts without decomposition at 237 "C. An irreversible rearrangement or decomposition reaction only occurs at above 267 "C and is indicated by a change in color from red to yellow. We will next investigate whether compound 6 can participate in typical reactions for 1,3-dienes, especially cycloadditions of the Diels-Alder type. Experimental SectionLithium (60 mg, 8.7 mmol) was added to a solution of 3 (700 mg, 0.81 mmol) in dimethoxyethane (30 mL) and the initially blue-green, later red, mixture was stirred for 2 h a t room temperature. After separation of insoluble materials, the remaining solution was cooled to -3O'C and treated with mesityl bromide (80 mg, 0.40 mmol). After the solution had been allowed to warm to room temperature, it was stirred for 16 h. The precipitated solid was filtered off and recrystallized from toluene to furnish 6 (280 mg, 53 % yield) as reddish brown crystals; m.p. 237-238°C; 'HNMR (Bruker AM300, [D,]benzene, 25'C): 6 = 0.16 (d, 3H, J = 6 . 6 H z ) , 0.24 (d, 3H, J = 6 . 5 H z ) , 0.34 (d, 3H, J = 6 . 5 H z ) , 0.45 (d, 3H, J=6.6Hz), 0.52 (d, 3H, J = 6 . 5 H z ) , 0.85 (d, 3H, J = 6 . 5 H z ) , 1.02 (d, 3H, J = 7 H z ) , 1.08 (d, 3H, J = 6 . 8 H z ) , 1.09 (d, 3H, J = 6 . 8 H z ) , 1.14 (d, 3H, J = 6 . 8 H z ) , 1.15 (d, 3H, J = 6 . 8 H z ) , 1.34 (d, 3H, J = 6 . 5 H z ) , 1.35 (d. 3H, J = 6 . 5 H z ) , 1.37 (d, 3H, J = 6 . 5 H z ) , 1.64 (d, 3H, J = 6 . 5 H z ) , 1.69 (d, 3H, J = 6.5 Hz), 1.78 (d, 3H, J = 6.6 Hz), 1.88 (d, 3H, J = 6.5 Hz), 2.55 (sept., 1 H, J=65Hz),2.64(sept., lH,J=6.5Hz),2.65(sept.,lH,J=6SHz),3.44(sept., 2H. J=6.5Hz),3,56(sept.,lH,J=6.8Hz),3.86(sept.,lH,J=6.5Hz),4.42 (sept., 1 H, J = 6."Si NMR (Bruker AMX300, [D,]benzene, 25°C): 6 = 52.3 (s), 89.5 (s); MS (CI, NH,): m/z (%): 1349 (4, MNH,'), 1332 (9, MH+); UV/Vis (THF): i.,,, (lge) = 392 (4.48). 518 (4.41) nm.

Eine Zunahme der Basizität des zeolithischen Wirts, die durch die oxidische Gastkomponente bedingt ist, bewirkte dessen Imprägnierung mit Caesiumhydroxid (Ausschnitt aus der Struktur siehe rechts; ○ Kationen, • Gastkomponente). Die Anwendung solcher Materialien als basische Festkörperkatalysatoren könnte für die chemische Industrie interessant sein.