Search Results

1 - 5 of 5 items :

Clear All
Planning and Building Electric of an Flower Carnival Car at University of Debrecen

Abstract

In this research we will discuss the creation of the flower cart. It will be examined from an economical and environmental perspective. Additionally, the planning process regarding the carrying capacity and battery runtime will be explained. The cart is moved by three-phase electric motors which are controlled by Variable Frequency Drives (VFD). Electric power is supplied by the large battery pack. Overall, the purpose of this vehicle is to be able to participate in the carnival march while increasing the quality of the event.

Open access
Neurological Critical Care Services’ Influence Following Large Hemispheric Infarction and Their Impact on Resource Utilization

Abstract

Introduction: Acute ischemic stroke (AIS) is the fourth leading cause of death in the US. Numerous studies have demonstrated the use of comprehensive stroke units and neurological intensive care units (NICU) in improving outcomes after stroke. We hypothesized that an expanded neurocritical care (NCC) service would decrease resource utilization in patients with LHI.

Methods: Retrospective data from consecutive admissions of large hemispheric infarction (LHI) patients requiring mechanical ventilation were acquired from the hospital medical records. Between 2011-2013, there were 187 consecutive patients admitted to the Jefferson Hospital for Neuroscience (Philadelphia, USA) with AIS and acute respiratory failure. Our intention was to determine the number of tracheostomies done over time. The primary outcome measure was the number of tracheostomies over time. Secondary outcomes were, ventilator-free days (Vfd), total hospital charges, intensive care unit length of stay (ICU-LOS), and total hospital length of stay (hospital-LOS), including ICU LOS. Hospital charges were log-transformed to meet assumptions of normality and homoscedasticity of residual variance terms. Generalized Linear Models were used and ORs and 95% CIs calculated. The significance level was set at α = 0.05.

Results: Of the 73 patients included in this analysis, 33% required a tracheostomy. There was a decrease in the number of tracheostomies undertaken since 2011. (OR 0.8; 95% CI 0.6-0.9: p=0.02).

Lower Vfd were seen in tracheostomized patients (OR 0.11; 95%CI 0.1-0.26: p<0.0001). The log-hospital charges decreased over time but not significantly (OR 0.9; 95%CI 0.78-1.07: p=0.2) and (OR 0.99; 95%CI 0.85-1.16: p=0.8) from 2012 to 2013 respectively.

The ICU-LOS at 23 days vs 10 days (p=0.01) and hospital-LOS at 33 days vs 11 days (p=0.008) were higher in tracheostomized patients.

Conclusion: The data suggest that in LHI-patients requiring mechanical ventilation, a dedicated NCC service reduces the overall need for tracheostomy, increases Vfd, and decreases ICU and hospital-LOS.

Open access
Vacuum Fluctuation in 2 × 13 Herringbone Milking Parlour in Dependence on Vacuum Control Method

References DUNN, D. 1996. Farmers save energy with VFD dairy vacuum pump. In Resource Engineering and Technology for a Sustainable World, vol. 3, no. 11, pp. 13-14. FRYČ, J. 2004. Zařízení k regulaci podtlaku u dojicího stroje a redukční ventil pro zařízení k regulaci podtlaku u dojicího stroje. Int Cl.7: A01 J 5/007 Úřad průmyslového vlastnictví Česká republika 14020. 09. 02. 2004. KARAS, I. - LOBOTKA, J. - GÁLIK, R. 2003a. Výsledky testovania niektorých konštrukčných prvkov dojacej techniky. Nitra : Slovenská

Open access
Start-up of large-power synchronous motor with the 6 kV voltage source inverter and microprocessor-controlled unit for excitation supply

. [9] A. Edpuganti, A. K. And and Rathore, “Optimal Pulsewidth Modulation of Medium-Voltage Modular Multilevel Converter”, IEEE Transactions on Industry Applications , vol. 52, no.4, pp. 3435-3442, 2016. [10] X. Han, A. B. And and Palazzolo, “VFD machinery vibration fatigue life and multi-level inverter effect”, 2012 IEEE Industry Applications Society Annual Meeting , Las Vegas, NV, 2012, pp. 1-15. [11] J. C. Das, J. And and Casey, “Characteristics and analysis of starting of large synchronous motors”, 1999 IEEE Industrial and Commercial Power Systems

Open access
Therapeutic Evaluation of Computed Tomography Findings for Efficacy of Prone Ventilation in Acute Respiratory Distress Syndrome Patients with Abdominal Surgery

) II score, – Sequential organ failure assessment (SOFA) scores on ICU admission – Duration of stay in the ICU – Duration of ventilation, outcome after 28 days and 90 days, – PEEP value at the start of ventilation, and maximum PEEP value within 72 hours after the start of ventilation – The number of ventilator-free days (VFDs) during which the patient was not attached to a ventilator ICU-free days (IFDs) during which the patient was cared for in a ward other than the ICU. To calculate the P/F ratio in the Group A, PaO 2 and FiO 2 were measured

Open access