Optical networks a practical perspective 3rd edition

... a large amount of new material, and removed some material that is not as relevant to practical optical networks. We have also updated the references and added some new problems. The major changes ... PerformanceandFaultManagement 481 8.5.1 TheImpactofTransparency 481 8.5.2 BERMeasurement 482 8.5.3 OpticalTrace 483 8.5.4 AlarmManagement 483 8.5.5 Data Communication Network (DCN) and Sig...

Ngày tải lên: 25/04/2014, 12:45

... deficiencies and arrhythmias. Projects include a demonstration implantable pacemaker, external car- diac pacemaker, impedance plethysmograph, intracardiac impedance sensor, external defibrillator, intracardiac ... accelerations that an airman is capable of tolerating. Additional appli- cations, such as the use of the processed electromyography (EMG) signal as a measure of muscle fatigue a...

Ngày tải lên: 29/03/2014, 11:20

... submitted for laboratory examination, especially that stored at low ambient temperatures where Aeromonas spp. are still able to multiply rapidly. Normal healthy humans rarely carry Aeromonas spp. in ... standard strains where the two cultures are closest together. This appears as a completely clear area shaped like an arrow head. Plate XIV (facing p. 150) shows both standard strains on a...

Ngày tải lên: 18/10/2013, 00:15

... in a planar graph. 683 8.20 Directed cycles in a nonplanar graph: K 5 . 683 8.21 Face traversal for a planar national network. 684 8.22 Orientable CDC of the ARPANet. 686 8.23 Seven-node planar ... long-haul, and ultra long-haul netwoks. Included also are some new applications that have emerged on the commercial scene, such as wavelengths on demand, virtual private optical networks,...

Ngày tải lên: 24/10/2013, 04:15

... contamination that has taken place. The presence of faecal organisms such as Escherichia coli means that either they have always been in the product or they have been acquired at a later stage ... Interpretation of results 1.5 The laboratory report 1.6 Criteria Risk assessment and hazard analysis Almost all international food trade legislation is focused on assessing and man- aging risks .....

Ngày tải lên: 26/01/2014, 18:20

... that all EC laws are compatible with the new international obligations of the European Union under the World Trade Organization (WTO) Sanitary and Phytosanitary and Technical Barriers to Trade ... that undesirable organisms are eliminated as far as is practicable. Microbiological criteria can be divided under the headings: • Microbiological standards. Mandatory criteria that are included ......

Ngày tải lên: 26/01/2014, 18:20

... 6.14 Surface scrapings and seam swabs: ᭡ Direct plate culture On suitable media, e.g. blood agar, nutrient agar, plate count agar ᭡ Enterobacteriaceae 6.7 ᭡ Escherichia coli 6.6 Schedules for examination ... heat treatment or are post-pasteurization contaminants. In addition, raw cream may contain any of the pathogens found in raw milk. Sterilized and ultra heat treated (UHT) cream in sealed...

Ngày tải lên: 26/01/2014, 18:20

... remaining normal packs at the end of the incubation period. Preparation and external examination (a) Maintain canned meats at a temperature of 4°C for several hours after pre- examination incubation ... spoilage bacteria can then be observed more easily as may bacterial spores. Gram staining can also be performed at a later stage on culture isolates recovered from broth or agar plate med...

Ngày tải lên: 26/01/2014, 18:20

... Prepare a clear agar plate with a flat surface (e.g. plate count agar, lysed blood agar). Always use plates with the same volume of agar. (b) If required dilute the sample or food homogenate prepared ... use. Alterna- tively, irradiated wrapped plastic templates are available commercially. continued Surface swabs This is a procedure for surface swabbing of a known area delineated by a...

Ngày tải lên: 26/01/2014, 18:20

... They are aerobic, facultatively anaerobic, non-sporing, generally non-motile, catalase and oxidase negative and attack carbohydrates fermentatively. The most common strains in food are E. faecalis ... coli causing a small proportion of cases and other species being isolated occasionally. Campylobacters are microaerophilic, Gram negative, small vibrioid or spiral-shaped cells with rapid,...

Ngày tải lên: 26/01/2014, 18:20