Essais de dépistage de la pneumonie à virus du Porc en France

Goret Pierre, Joubert L., Girard H. C., Mackowiak Czesław, Lucam François. Essais de dépistage de la pneumonie à virus du Porc en France. In: Bulletin de l'Académie Vétérinaire de France tome 106 n°10, 1953. pp. 569-575

Modelling of a dynamic multiphase flash: the positive flash. Application to the calculation of ternary diagrams

A general and polyvalent model for the dynamic simulation of a vapor, liquid, liquid-liquid, vapor-liquid or vapor-liquid-liquid stage is proposed. This model is based on the -method introduced as a minimization problem by Han & Rangaiah (1998) for steady-state simulation. They suggested modifying the mole fraction summation such that the same set of governing equations becomes valid for all phase regions. Thanks to judicious additional switch equations, the -formulation is extended to dynamic simulation and the minimization problem is transformed into a set of differential algebraic equations (DAE). Validation of the model consists in testing its capacity to overcome phase number changes and to be able to solve several problems with the same set of equations: calculation of heterogeneous residue curves, azeotropic points and distillation boundaries in ternary diagrams

VIII - L'organisation des études et la mise en œuvre sur le site de Chooz

La tranche nucléaire de CHOOZ B 1, tête de série du modèle N4, verra les premières applications du système de contrôle-commande conçu pour ce palier. Le couplage au réseau est prévu pour juillet 1991. Les auteurs indiquent les différentes étapes de la réalisation et de la mise en œuvre de cette architecture informatique de haut niveau qui devraient se dérouler, dès la première tranche, dans des conditions aussi satisfaisantes que pour les premières tranches du palier P4 (1 300 MW)

NFC/RFID sensor Tag for Wireless Temperature Monitoring in a Cold Chain

This work presents the design and validation of a temperature sensor tag, which can be queried either by a cell phone using the NFC protocol or an HF RFID reader. It will easily ensure the cold chain failures and the product integrity. The proposed recording sensor can be placed on the packaging box to measure the temperature of the product. This allows to observe and store its evolution in order to guarantee the products quality and to respect the applicable provisions during transport. Thanks to a cell phone with the NFC, this recording data can be easily available, contrary to existing tags on the market. The design of tag is summed up as the choice of components, and the size of the antenna. Then a program for data recording and processing is developed using C language. Indeed, to have a triple gain of place, speed, and cost; an optimization of values recorded is operated. The overall tag size is 5.1x4x1.6 mm3, and its operation has been validated by performing in a real scenario: the temperature monitoring of a water bottle inside a bag for at least 50 minutes. The results of this test will be presented and discussed

Risk score to predict the outcome of patients with cerebral vein and dural sinus thrombosis

This study was supported by grants from the ‘Fundação para a Ciência e Tecnologia’ (PRAXIS C/SAU/10248/1998) and the ‘Associação para o Desenvolvimento da Investigação da Doença Vascular Cerebral’.BACKGROUND: Around 15% of patients die or become dependent after cerebral vein and dural sinus thrombosis (CVT). METHOD: We used the International Study on Cerebral Vein and Dural Sinus Thrombosis (ISCVT) sample (624 patients, with a median follow-up time of 478 days) to develop a Cox proportional hazards regression model to predict outcome, dichotomised by a modified Rankin Scale score >2. From the model hazard ratios, a risk score was derived and a cut-off point selected. The model and the score were tested in 2 validation samples: (1) the prospective Cerebral Venous Thrombosis Portuguese Collaborative Study Group (VENOPORT) sample with 91 patients; (2) a sample of 169 consecutive CVT patients admitted to 5 ISCVT centres after the end of the ISCVT recruitment period. Sensitivity, specificity, c statistics and overall efficiency to predict outcome at 6 months were calculated. RESULTS: The model (hazard ratios: malignancy 4.53; coma 4.19; thrombosis of the deep venous system 3.03; mental status disturbance 2.18; male gender 1.60; intracranial haemorrhage 1.42) had overall efficiencies of 85.1, 84.4 and 90.0%, in the derivation sample and validation samples 1 and 2, respectively. Using the risk score (range from 0 to 9) with a cut-off of >or=3 points, overall efficiency was 85.4, 84.4 and 90.1% in the derivation sample and validation samples 1 and 2, respectively. Sensitivity and specificity in the combined samples were 96.1 and 13.6%, respectively. CONCLUSIONS: The CVT risk score has a good estimated overall rate of correct classifications in both validation samples, but its specificity is low. It can be used to avoid unnecessary or dangerous interventions in low-risk patients, and may help to identify high-risk CVT patients.Fundação para a Ciência e Tecnologia (PRAXIS C/SAU/10248/1998) ; Associação para o Desenvolvimento da Investigação da Doença Vascular Cerebra