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Available from: Marek L Kowalski, Nov 25, 2014
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    ABSTRACT: The on-site synthetic transformer insulation monitoring system, developed by applying the theory of this paper and practically installed on a certain primary 110 kV transformer, can synchronously measure six kinds of gases dissolved in transformer oil (including H<sub>2</sub>, CO, CH<sub>4</sub>, C<sub>2</sub>H<sub>4</sub>, C<sub>2</sub>H<sub>2 </sub>, C<sub>2</sub>H<sub>6</sub>), dielectric loss of transformer bush and grounding current of transformer magnet core. The theory of every unit contained in the system is discussed, further more, the on-site data by this system and off-site data by field test are compared according to their respective time point. During its long time steady running period, this monitor system has successfully forenoticed a high temperature overheat fault occurring inside the transformer, the superscales of gases coincide with results from traditional spectrum analysis. In the end, the result of real core-hangout test supported the validity of this system
    Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on; 02/2001
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    ABSTRACT: Asthma has become the most common, childhood chronic disease in the industrialized world, and it is also increasing in developing regions. There are huge differences in the prevalence of childhood asthma across countries and continents, and there is no doubt that the prevalence of asthma was strongly increasing during the past decades worldwide. Asthma, as a complex disease, has a broad spectrum of potential determinants ranging from genetics to life style and environmental factors. Environmental factors are likely to be important in explaining the regional differences and the overall increasing trend towards asthma's prevalence. Among the environmental conditions, indoor factors are of particular interest because people spend more than 80% of their time indoors globally. Increasing prices for oil, gas and other sources of primary energy will further lead to better insulation of homes, and ultimately to reduced energy costs. This will decrease air exchange rates and will lower the dilution of indoor air mass with ambient air. Indoor air quality and potential health effects will therefore be an area for future research and for gaining a better understanding of asthma epidemics. This strategic review will summarize the current knowledge of the effects of a broad spectrum of indoor factors on the development of asthma in childhood in Western countries based on epidemiological studies. In conclusion, several epidemiological studies point out, that indoor factors might cause asthma in childhood. Stronger and more consistent findings are seen when exposure to these indoor factors is assessed by surrogates for the source of the actual toxicants. Measurement-based exposure assessments for several indoor factors are less common than using surrogates of the exposure. These studies, however, mainly showed heterogeneous results. The most consistent finding for an induction of asthma in childhood is related to exposure to environmental tobacco smoke, to living in homes close to busy roads, and in damp homes where are visible moulds at home. The causing agents of the increased risk of living in damp homes remained uncertain and needs clarification. Exposure to pet-derived allergens and house dust mites are very commonly investigated and thought to be related to asthma onset. The epidemiological evidence is not sufficient to recommend avoidance measures against pet and dust mites as preventive activities against allergies. More research is also needed to clarify the potential risk for exposure to volatile and semi-volatile organic compounds due to renovation activities, phthalates and chlorine chemicals due to cleaning.
    International journal of hygiene and environmental health 01/2011; 214(1):1-25. DOI:10.1016/j.ijheh.2010.08.009 · 3.83 Impact Factor
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    ABSTRACT: Sublingual immunotherapy (SLIT) has progressively gained credibility. Randomized double-blind placebo-controlled trials, meta-analyses and mechanistic studies have accumulated rapidly in the last years. We will review herein a brief history of SLIT, its indications and the safety aspects and will discuss the main unmet needs and the points to be developed in the field. During the last year, new information on SLIT has become available, mainly from the so-called big trials, and some important aspects have been partially clarified. In addition, the possible indications to SLIT began to be expanded. The dose dependency of the efficacy of SLIT and the optimal maintenance dose have been identified at least for grass allergens. The safety is well demonstrated in both adults and children.
    Current opinion in otolaryngology & head and neck surgery 02/2011; 19(1):43-7. DOI:10.1097/MOO.0b013e328341d0bd · 1.84 Impact Factor
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