fNIR is a spectroscopic neuro-imaging method for measuring the level of neuronal activity in the brain. The method is based on neuro-vascular coupling, that is, the relationship between metabolic activity and oxygen level (oxygenated hemoglobin) in feeding blood vessels...Fonksiyonel beyinsel aktivite görüntüleme tekniklerinden fNIR(Functional Near-Infrared) tekniğinin sunumu.Gönderen Mourath
fNIR Brain Imaging Presentation 
Genel laboratuvar cihazlarının yanı sıra, çeşitli analitik cihazların kullanıldığı yöntemlerdir. Analitik cihazlar, maddenin, iletkenlik, elektrot potansiyeli, ışın absorpsiyonu veya emisyonu, kütle yük oranı, floresans gibi fiziksel ve kimyasal özelliklerini ölçer. Numuneyi analiz etmek amacıyla bazı bileşenleri ayırmak için kullanılan kromatografik, elektrolitik, elektroforetik yöntemler de aletli analiz yöntemlerindendir.Gönderen [ u H u R u ]®
Enstrümental (Aletli) Analiz
Western Medica OPA Series Compact Click-Style Regulators are constructed with an aluminum body, an all-brass high-pressure chamber, and are manufactured and tested to CGA standards including ignition testing. The regulators are available in CGA-870 yoke inlet and CGA-540 nut and nipple connections with flow settings from 1/64 to 25 LPM. The CYPRESS OXY Pneumatic Oxygen Conserver ensures patient saturation at any breath rate with its clinically-determined delivery pattern.Gönderen yıldıray
respiratory1. GAS MANUFACTURE Oxygen Bulk production usually by fractional distillation of air. Air is compressed to 5 atmospheres and cooled to -181°C using reverse heat exchangers. A 2-stage distillation process yields 99.5% O2 (and 0.4% argon). Oxygen concentrators are used in remote, field or domestic applications. Molecular sieves contain a zeolite matrix that strongly absorbs N2, CO2 and water.. If pressurised air is applied to one side, some emerges as 95.4% O2 with 4.5% argon on the other; on reverse depressurisation, the absorbed gases are vented away. Two such units in parallel can provide a continuous supply of O2. Plastic membrane filters exist but can only produce about 30-40% O2.
Yazının Devamı...
Makale No: 771|Yorum Oku/Yaz:| Tarih: 07 Haz 07 | Yayinlayan :Yasin Çağan | 
Gönder | 
Yazdır | 
Kaydet
Gönder | Yazdır | Kaydet Dept of Anaesthetics, Royal Prince Alfred Hospital, Sydney, Australia
Some of the section dealing with the physics of lasers was written with the help of an article by David Tilbrook, published in the July 1980 issue of Electronics Today International (ETI). That magazine regrettably went out of print some years ago. David's fascinating article was one of the things that sparked my interested in electronics and I am grateful to him.
Part I. LASER PHYSICS
QUANTUM PHYSICS. The universe contains two fundamental quantity types:- Continuous e.g. velocity
- Quantised e.g. standing waves and harmonics
Yazının Devamı...
Makale No: 766|Yorum Oku/Yaz:| Tarih: 07 Haz 07 | Yayinlayan :Yasin Çağan | Gönder | Yazdır | Kaydet
Gönder | Yazdır | Kaydet 