Hybridization offers great potential for decreasing pollutant and carbon dioxide emissions of diesel cars. However, an assessment of the real-world emissions performance of modern diesel hybrids is missing. Here, we test three diesel-hybrid cars on the road and benchmark our findings with two cars against tests on the chassis dynamometer and model simulations. The pollutant emissions of the two cars tested on the chassis dynamometer were in compliance with the relevant Euro standards over the New European Driving Cycle and Worldwide harmonized Light vehicles Test Procedure. On the road, all three diesel-hybrids exceeded the regulatory NO limits (average exceedance for all trips: +150% for the Volvo, +510% for the Peugeot, and +550% for the Mercedes-Benz) and also showed elevated on-road CO emissions (average exceedance of certification values: +178, +77, and +52%, respectively). These findings point to a wide discrepancy between certified and on-road CO and suggest that hybridization alone is insufficient to achieve low-NO emissions of diesel powertrains. Instead, our simulation suggests that properly calibrated selective catalytic reduction filter and lean-NO trap after-treatment technologies can reduce the on-road NO emissions to 0.023 and 0.068 g/km on average, respectively, well below the Euro 6 limit (0.080 g/km).
A 10-year-old neutered male domestic shorthair cat was referred with a 2-week history of dyspnoea and anorexia following injury in a car accident. Thoracic radiography and ultrasonography revealed a diaphragmatic hernia. A midline coeliotomy revealed a centrally located hernia ventral to the caudal vena cava. Hernia reduction required incision of the hernia ring. Displaced organs included the duodenum; jejunum; ascending and transverse colon; and right, caudate and quadrate liver lobes. After reduction of the abdominal organs, a torsion of the right medial and quadrate liver lobes was identified. Lobectomy was performed followed by herniorrhaphy. The cat had an uneventful recovery and was clinically normal on re-examination 1, 6, 12 and 24 months following the surgery.
A ewe was referred with severe dog bite wounds after unsuccessful attendance in a first opinion surgery. A large, complex, contaminated wound was evident in the medial surface of the left tibia. Initial management included lavage, surgical debridement, suturing of ruptured muscles and bandaging. Staged debridement was performed repeatedly 7, 14 and 21 days after initial presentation, while open wound management was carried out for 6 weeks. When the left hind limb wound was covered with healthy granulation tissue, the defect was closed with a genicular axial pattern skin flap. Post‐operatively, antibiotics and analgesics were administered; bandages were applied. Flap tip oedema and partial thickness skin loss concerning the epidermis were observed. The ewe recovered after 40 days of post‐operative hospitalisation. On re‐examination, 1 year after initial admission, no complications or lameness was reported. Although therapeutic management required extensive surgical attention and long post‐operative care, the final outcome was favourable.
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