EMV-Analyse am Beispiel einer Funkenerosionsanlage

EMC, EDM, spark, power electronics, modeling, radiation

Untersuchungen zur Reduzierung von Kohlenwasserstoff-Emissionen im Kaltstart von Ottomotoren mit Saugrohreinspritzung

Ottomotor, Emissionen, Kaltstart

Experimentierendes Lernen in der Bau- und Holztechnik : Entwicklung eines fachdidaktisch begründeten Experimentalkonzepts als Grundlage für die Realisierung eines handlungsorientierten Unterrichts für die Berufsfelder der Bau- und Holztechnik

Experimental Learning, Construction, Wood Technology

Risk Factors for Cardiovascular Disease, Metabolic Syndrome and Sleepiness in Truck Drivers

Abstract Background: Truck driver sleepiness is a primary cause of vehicle accidents. Several causes are associated with sleepiness in truck drivers. Obesity and metabolic syndrome (MetS) are associated with sleep disorders and with primary risk factors for cardiovascular diseases (CVD). We analyzed the relationship between these conditions and prevalence of sleepiness in truck drivers. Methods: We analyzed the major risk factors for CVD, anthropometric data and sleep disorders in 2228 male truck drivers from 148 road stops made by the Federal Highway Police from 2006 to 2011. Alcohol consumption, illicit drugs and overtime working hours were also analyzed. Sleepiness was assessed using the Epworth Sleepiness Scale. Results: Mean age was 43.1 ± 10.8 years. From 2006 to 2011, an increase in neck (p = 0.011) and abdominal circumference (p < 0.001), total cholesterol (p < 0.001), triglyceride plasma levels (p = 0.014), and sleepiness was observed (p < 0.001). In addition, a reduction in hypertension (39.6% to 25.9%, p < 0.001), alcohol consumption (32% to 23%, p = 0.033) and overtime hours (52.2% to 42.8%, p < 0.001) was found. Linear regression analysis showed that sleepiness correlated closely with body mass index (β = 0.19, Raj2 = 0.659, p = 0.031), abdominal circumference (β = 0.24, Raj2 = 0.826, p = 0.021), hypertension (β = -0.62, Raj2 = 0.901, p = 0.002), and triglycerides (β = 0.34, Raj2 = 0.936, p = 0.022). Linear multiple regression indicated that hypertension (p = 0.008) and abdominal circumference (p = 0.025) are independent variables for sleepiness. Conclusions: Increased prevalence of sleepiness was associated with major components of the MetS.

Elektromagnetische Effekte an elektrischen Zündmitteln (EED) mit angeschlossener Zündkreiselektronik (ZKE) bei impulsförmiger, breitbandiger Bestrahlung

Magdeburg, Univ., Fak. für Elektrotechnik und Informationstechnik, Diss., 2009

Untersuchungen zur Struktur und Dynamik freitragender flüssiger Filme

Magdeburg, Univ., Fak. für Naturwiss., Diss., 2009

Resistance Training in Spontaneously Hypertensive Rats with Severe Hypertension

Abstract Background: Resistance training (RT) has been recommended as a non-pharmacological treatment for moderate hypertension. In spite of the important role of exercise intensity on training prescription, there is still no data regarding the effects of RT intensity on severe hypertension (SH). Objective: This study examined the effects of two RT protocols (vertical ladder climbing), performed at different overloads of maximal weight carried (MWC), on blood pressure (BP) and muscle strength of spontaneously hypertensive rats (SHR) with SH. Methods: Fifteen male SHR ENT#091;206 ± 10 mmHg of systolic BP (SBP)ENT#093; and five Wistar Kyoto rats (WKY; 119 ± 10 mmHg of SBP) were divided into 4 groups: sedentary (SED-WKY) and SHR (SED-SHR); RT1-SHR training relative to body weight (~40% of MWC); and RT2-SHR training relative to MWC test (~70% of MWC). Systolic BP and heart rate (HR) were measured weekly using the tail-cuff method. The progression of muscle strength was determined once every fifteen days. The RT consisted of 3 weekly sessions on non-consecutive days for 12-weeks. Results: Both RT protocols prevented the increase in SBP (delta - 5 and -7 mmHg, respectively; p > 0.05), whereas SBP of the SED-SHR group increased by 19 mmHg (p < 0.05). There was a decrease in HR only for the RT1 group (p < 0.05). There was a higher increase in strength in the RT2 (140%; p < 0.05) group as compared with RT1 (11%; p > 0.05). Conclusions: Our data indicated that both RT protocols were effective in preventing chronic elevation of SBP in SH. Additionally, a higher RT overload induced a greater increase in muscle strength.

Dynamik einiger Neurotransmitter beim räumlichen Lernen und nach elektrischer Stimulation im Hippocampus und Cortex praefrontalis der Ratte

Magdeburg, Univ., Fak. für Naturwiss., Diss., 2010

novel reactive distillation process for the production of cyclohexanol from cyclohexene

Magdeburg, Univ., Fak. für Verfahrens- und Systemtechnik, Diss., 2010

Einfluss von extramitochondrialen Ca-Ionen auf isolierte Rattenlebermitochondrien unter Hypoxie und Reoxygenierung

Magdeburg, Univ., Medizin. Fakultät, Diss., 2004

Knowledge representation with condensed set-valued attributes

Magdeburg, Univ., Fak. für Informatik, Diss., 2012

Physikalische Modellierung und Analyse thermisch und mechanisch bedingter Messabweichungen in faseroptischen Rotationssensoren

Magdeburg, Univ., Fak. für Maschinenbau, Diss., 2012

Convection and segregation of beads in a flat rotating box

Magdeburg, Univ., Fak. für Naturwiss., Diss., 2012

Entwicklung eines adaptiven Luftfederdämpfers mit strukturierter piezokeramischer Drossel

Magdeburg, Univ., Fak. für Maschinenbau, Diss., 2013

Betrachtung der Wirtschaftlichkeit einer Photovoltaik-Anlage vergleichend mit Energiespeicherlösung und einer Kraft-Wärme-Kopplungs-Anlage

[s.c.]