Battery Charger for Hybrid Locomotive

The paper introduces the concept and functionality of the battery charger – pulse rectifier control system for hybrid shunting locomotive. The locomotive producer is the company CZ LOKO a.s. The pulse rectifier operates in several modes including modes with charging of the traction battery from the alternator or from the distribution net, emergency mode or test modes. The paper presents the integration of the pulse rectifier into the context of the hybrid drive and the results of partial tests of drive control

Control of Diesel-electric AC/DC Traction Drive of Motor Truck WŽB 10.1-M

The paper describes the control of traction drive and control systems properties of a special rail vehicle WŽB10.1-M used in the Prague metro (subway).  Measured values of main quantities of the control system and experience from duty are included. Software for the traction drive control system was developed at the University of Pardubice

COMPARISON OF SELECTED PARAMETERS OF CARGO RAIL WAGONS

Príspevok sa zaoberá porovnaním vybraných ukazovateľov prepravnej charakteristiky železničných nákladných vozňov, ktoré môže byť užitočné z pohľadu dopravcov ako aj prepravcov. Medzi vybrané ukazovatele sme zaradili vlastné ukazovatele a ukazovatele maximálneho zaťaženia. Výpočty vychádzajú z východiskových ukazovateľov ložnej kapacity a základných technických údajov o vozňoch.The paper deals with the comparison of selected parameters of freight wagons, which could be useful for carriers and shippers. The selected indicators include own indicators and maximum loading capacity. Calculations are based on primary parameters of loading capacity and basic technical data of wagons

Nanofibers in Mucosal Drug and Vaccine Delivery

Successful mucosal administration and delivery of drugs still pose a great challenge. However, the possibility to deliver not only small drug molecules but also macromolecular drugs and nanoparticles via mucosal surfaces represents a great opportunity. Rapid onset of drug action, avoidance of first-pass metabolism, and high immunocompetence of mucosa are some of the important features for mucosal drug and vaccine delivery. The use of mucoadhesive drug delivery systems, systems with fast dissolving properties, and nanomaterials with mucus penetration properties are examples of successful strategies to achieve effective mucosal drug and vaccine delivery. Non-keratinized mucosa of the oral cavity, the nasal and vaginal mucosa represent favorable sites of drug administration. Polymer nanofibers have attracted much attention because of remarkable characteristics such as a large surface area to volume ratio and high porosity. Nanofibers have been extensively used for different biomedical applications including wound dressing, tissue engineering, and drug delivery. Among their fabrication methods, the introduction of electrospinning technique was an important step toward achieving the goal of large scale industrial production of nanofiber-based drug delivery systems used in mucosal applications. This chapter provides an overview on all aspects of mucosal drug and vaccine delivery using nanofibers

Toky materiálů a řízení zásob v podniku Alfa s.r.o.

Toky materiálu a řízení zásob jsou důležité oblasti řízení podniku. Druhy zásob lze rozdělit podle funkce v podniku nebo podle použitelnosti. Bod rozpojení objednávkou zákazníka vstupuje do jednotlivých částí logistického retězce. Metody řízení zásob pomáhají udržovat optimální hladinu zásob. Provedením analýzy současného řízení skladu výrobního materiálu byly zjištěny některé nedostatky, které lze odstranit navrhovanými kroky

New Trends in the Field of Digital Technology Usage

This thesis deals with teaching the digital technology within the ISCED 2 education. The theoretical part monitors the current state of teaching these technologies in the Czech Republic and two European Union states, Ireland and the United Kingdom. The practical part includes a conception of digital technology teaching, including a methodical manual for teachers and a working environment for students, verification of this conception in practice and drawing conclusions