VDS 2380 EBOOK
VdS calculation software for gas extinguishing systems . according to the nozzle model in VdS (IG) / VdS (FC) / VdS (CO2); Restrictor. Publishing house: VdS Schadenverhütung GmbH. Amsterdamer Str. .. VdS VdS Guidelines for Fire Extinguishing Systems, Fire Extinguishing Systems . VdS (), Fire Extinguishing Systems using non-liquefied Inert Gases, . Planning and Installation, Verband der Sachversicherer e.V.
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VdS en: (06). Fire Extinguishing Systems Using Non-liquefied Inert Gases. 3. Guidelines for Fire Extinguishing Systems. Fire Extinguishing. Download Vds pdf: yazik.info?file=vds++pdf for a ebook by o. c. ferrell;michael d. hartline marketing strategy, 5th edition in pdf. d [dc68] irpStack: (c, 2) 84a6f [ \FileSystem\Ntfs] Service ( VDS) subsystem in Windows, which consists of user-mode and device driver.
In literature there are numerous descriptions of adverse reactions after ingestion of uncooked and cooked lentils: oropharyngeal symptoms and acute urticaria are the most common symptoms linked to their ingestion, followed by anaphylaxis [ 4 ].
Nevertheless, cases of allergic reactions induced by inhaling vapours from cooking lentils have rarely been described [ 6 ]. Herein we describe the case of a child who presented with urticaria and anaphilaxis due to inhalation of cooked lentils vapours.
Case report A 22 -month-old child was admitted to our Pediatric Department, University of Catania, Italy, for anaphylaxis and urticaria. The child was born on term, her birth weight was 3. Her familial anamnesis was positive for allergic diseases, because her father and uncle of maternal line were affected by rhinitis and conjunctivitis, her uncle of paternal line was affected by allergic asthma, her paternal grandfather suffered of food allergy to peach and peanut.
Since birth the child suffered of recurrent episodes of bronchitis and conjunctivitis during the spring period. At the age of 9 months she presented a first episode of angioedema and laryngeal obstruction, due to a second assumption of lentils in her diet, and for this reason she started a corticosteroid and antihistaminic therapy with resolution of her symptoms.
At that time the child performed routine blood analyses, such as blood total and specific IgE for milk, milk proteins, egg, tomato, carrot, potato and lentil that showed a positive result for lentil For this reason the child started a diet of exclusion of lentils. When the child was admitted to our Department her physical exam showed the presence of skin pomfoid-eritematous manifestations, each of 2—3 cm of diameter, spread all over her body, above all on her face and trunk.
She also presented a harsh breath with whistles all over the lung, associated with respiratory failure.
We performed routine analyses that were all in the normal range, except for the dosage of specific IgE, that revealed a positive result for lentils. The child also performed a prick by prick that gave also the same positive result with a wheal of 8 mm of diameter.
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Thus, the child underwent a corticosteroid and antihistaminic therapy, also following a diet of exclusion of both lentils and their vapours. Written informed consent was obtained from the patient's parents for the publication of this report and the eventual included images. Discussion Lentils Lens suculenta are actually cultivated in most of temperate and subtropical areas of the world and although their consumption is widespread, in literature there are few data on serious allergic reactions, such as anaphylaxis, caused by their ingestion.
As a matter of fact, in Pascual et al. Six of these patients also had also allergic reactions to chickpeas, two to peas, and one to green beans. Orhan and Karakas, in , described a case of a 17 year old boy that suffered 4 episodes of anaphylaxis after ingestion of cooked lentils and 2 after ingestion of cooked chickpeas [ 10 ].
Thus, both authors concluded that usually allergic reactions to cooked lentils can be associated with a multiple hypersensitivity to other legumes belonging to the same family. On the other hand it is possible to consider a cross-reactivity between legumes of the same family, with an idiosyncratic pathogenic mechanism.
They are typically trimeric proteins of to kd that lack disulphide bonds. Their subunit composition varies considerably among legume species because of differences in the posttranslational processing by proteolysis and glycosylation of the initially synthesized polypeptide chains of around 50 kd. Ibanez et al. The increased incidence of lentils allergy described in literature directed the research on possible pathogenic mechanisms triggered by the ingestion of lentils.
On this regard, two different types of allergens have been characterized from boiled lentils. One type comprises proteins L1 and L2 of 16 kd and protein L3 of 12 kd, which are members of the same family according to their structural and immunochemical relationships. These proteins family seems to represent the main IgE-binding group in boiled lentil extracts. In conclusion the process of boiling seems to divide these allergen to create new allergenic pieces, with deeper allergic properties [ 13 , 14 ].
Another mechanism that promotes lentil allergic reactions is the hypersensitivity caused by their steam inhalation, even if in literature less is known on this regard.
You can modify these parameters anytime and make a recalculation of any system with altered parameters, e. The results can be printed or viewed on screen.
Inert gas extinguishing systems usually employ restrictor plates behind the manifold, reducing the pressure in the pipe system downstream the restrictor to a defined maximum value. Due to the necessarily strong pressure reduction a so-called over-critical flow through the restrictor appears. Here the general relation Bernoulli between pressure drop and mass flow is no longer valid, so the calculation requires additional care.
Generally, the flow through the nozzles is also over-critical, so specific models are implemented for the nozzles, too. Download this pdf. The data were determined using the method detailed in VdS DIN ; shopping basket shopping.
These guidelines apply to all installer companies for. Measured during the irradiation performed at Vds. Enter the password to open this PDF file.
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VdS calculation software for gas extinguishing systems
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