Search results for "element"
showing 10 items of 13601 documents
Innowacje pedagogiczne w edukacji wczesnoszkolnej
2014
Liiketoimintatiedon hallinnan pelillistäminen
2018
Tämä työ on Pro gradu -tutkielma, jossa on haettu vastauksia siihen, mitä on liiketoimintatiedon hallinta ja pelillistäminen. Työn tarkoituksena on selvittää, mistä liiketoimintatiedon hallinnassa ja pelillistämisessä on kysymys, ja kuin-ka pelillistämistä voitaisiin soveltaa liiketoimintatiedon hallintaan ja mitä hyö-tyä pelillistämisellä voidaan saavuttaa liiketoimintatiedonhallinnassa. Liike-toimintatiedon hallinta on organisaatioille erittäin hyödyllistä ja nykypäivänä erittäin tärkeää menestymisen kannalta, mutta se koetaan usein hyvin työlääksi ja hankalaksi. Tutkielmassa tarkastellaan kirjallisuuskatsauksen kautta liike-toimintatiedon hallintaa pelillistämisen näkökulmasta ja esitetä…
Oppimispelit ja oppijan motivointi pelillistämisen avulla
2015
Tämä työ on kirjallisuuskatsaus, jossa perehdytään oppimispeleihin ja pellistämiseen sekä oppijan motivointiin. Tutkielmassa on pyritty selvittämään se, mitä tarkoitetaan pelillistämisellä, mikä on oppimispeli ja kuinka oppijaa voidaan motivoida oppimispeleissä käyttäen pelillistämistä. Pelaaminen on 2000-luvulla yleistynyt ja siitä on tullut osa lähes kaikkien ihmisten arkea. Tästä syystä pelejä ja pellistämistä on tutkittu paljon ja pohdittu pelien potentiaalia ja hyödyntämistä opetuksessa. Pelillistämisellä tarkoitetaan pelillisten elementtien käyttöä ei-pelillisessä kontekstissa. Tutkielmassa on tuotu esille kolme teoriaa motivoinnista ja sovellettu niitä oppimispeleihin. ARCS-malli kes…
Efficiency Improvement of Permanent-magnet Synchronous Motor Drives for Household Appliances
2011
This paper deals with some aspects of efficiency improvement of PMSMD (Permanent Magnet Synchronous Motor Drives). Particularly two aspects are focused: the control algorithm for the PMSMD, which allows to reduce the power losses of the electric drive without penalty on its dynamic performances and the optimization of an IPMSM (Interior Permanent Magnet Synchronous Motor) rotor configuration capable to increase the performances in terms of shaft torque production, limiting at the same time the rotor leakage flux. The loss minimization algorithm is here briefly analysed, a test bed for experimental validation is presented and the data are analysed. Experimental tests have been performed aimi…
Study of very forward energy and its correlation with particle production at midrapidity in pp and p-Pb collisions at the LHC
2022
Journal of high energy physics 08(8), 86 (2022). doi:10.1007/JHEP08(2022)086
New Evidence of the Enhanced Elimination of a Persistent Drug Used as a Lipid Absorption Inhibitor by Advanced Oxidation with UV-A and Nanosized Cata…
2019
This work demonstrates new evidence of the efficient destruction and mineralization of an emergent organic pollutant using UV-A and titanium nanosized catalysts. The target compound considered in this work is the primary metabolite of a lipid regulator drug, clofibrate, identified in many studies as refractory during conventional wastewater treatment. The photocatalytic performance study was carried out in batch mode at laboratory scale, in aqueous suspension. Kinetic data showed that titanium dioxide P25 Aeroxide® exhibits the highest photocatalytic efficiency compared to the other investigated catalysts. Pollutant degradation and mineralization efficiencies strongly increased when decreas…
On the high-pressure phase stability and elastic properties ofβ-titanium alloys
2017
We have studied the compressibility and stability of different β-titanium alloys at high pressure, including binary Ti–Mo, Ti–24Nb–4Zr–8Sn (Ti2448) and Ti–36Nb–2Ta–0.3O (gum metal). We observed stability of the β phase in these alloys to 40 GPa, well into the ω phase region in the P–T diagram of pure titanium. Gum metal was pressurised above 70 GPa and forms a phase with a crystal structure similar to the η phase of pure Ti. The bulk moduli determined for the different alloys range from 97 ± 3 GPa (Ti2448) to 124 ± 6 GPa (Ti–16.8Mo–0.13O).
Feasible Low-Phosphorus Dietary Patterns in Maintenance Hemodialysis Patients: Need for Original Research
2020
Introduction The standard low-phosphorus diet restricts pulses, nuts, and whole grains and other high phosphorus foods to control hyperphosphatemia. We conducted a randomized controlled trial to evaluate the effectiveness, safety, and tolerability of the modified diet, which introduced some pulses and nuts, increased the use of whole grains, increased focus on the avoidance of phosphate additives, and introduced the prescription of low-biological-value protein such as bread. Methods We conducted a multicenter, pragmatic, parallel-arm, open-label, randomized controlled trial of modified versus standard diet in 74 adults on hemodialysis with hyperphosphatemia over 1 month. Biochemistry was as…
TiO2-based photocatalysts impregnated with metallo-porphyrins employed for degradation of 4-nitrophenol in aqueous solutions: role of metal and macro…
2007
Photodegradation of organic compounds in water solutions by means of economically advantageous and environment-friendly processes is a topic of growing interest. In recent years a great attention has been devoted to TiO2-based photocatalysts for the oxidative degradation of various organic pollutants. In this context, we have prepared new photo-catalytic polycrystalline TiO2 systems impregnated with sensitizers, i.e., copper, iron or manganese porphyrins, and investigated their photoactivity for 4-nitrophenol oxidation compared with that of bare TiO2. A significant improvement of the photoreactivity was observed in the case of TiO2 impregnated with copper porphyrin, while only a slight bene…
Assessment of Physical and Chemical Stability of Different Magnesium Compounds in Tablets
2020
Modern lifestyle, excessive chemicalization of agricultural products, excessive processing and refining of food, cause a decrease in daily intake of magnesium, cation with an extremely important role in prevention and treatment of many diseases. As a result, there arises the need for extra magnesium intake in the form of dietary supplements. In this study were evaluated the physical and chemical stability of magnesium-containing tablets, depending on the active compound and the excipients used. Magnesium tablets in the form of orotate, lactate, citrate, oxide and hydroxide were taken into study and physical and chemical stability were observed over the validity period, at 6 and at 12 month…