Search results for "Rind"

showing 10 items of 111 documents

Making by Grinding: Mechanochemistry Boosts the Development of Halide Perovskites and Other Multinary Metal Halides

2019

Mechanochemical synthesis has recently emerged as a promising route for the synthesis of functional lead halide perovskites as well as other (lead‐free) metal halides. Mechanochemical synthesis presents several advantages with regards to more commonly used solution‐based processes such as an inherent lower toxicity by avoiding organic solvents and a finer control over stoichiometry of the final products. The ease of implementation, either through the use of a simple mortar and pestle or with an electrically powered ball‐mill, and low amount of side products make mechanochemical synthesis appealing for upscaling the production of halide perovskites. Due to the defect tolerance of lead halide…

Materials scienceRenewable Energy Sustainability and the EnvironmentHalide02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnology01 natural sciencesReaccions químiques0104 chemical sciencesGrindingchemistry.chemical_compoundMetal halideschemistryChemical engineeringMechanochemistryEnergiaGeneral Materials Science0210 nano-technologyAdvanced Energy Materials
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Nanomanufacturing/Nanotechnology

2017

This chapter provides comprehensive knowledge regarding the fabrication of nanoproducts and element of micro-electromechanical systems using various techniques and processes. Both well-established techniques, such as nanomachining (ultra-precision) and new trends in improving nanoprocesses taking into account AFM, laser beam machining, electron beam machining processes are overviewed. The background of nanomachining processes, including typical machining operations such as turning, milling and grinding and different construction materials (metallic and nonmetallic), is outlined. The physical mechanisms responsible for the transition from brittle to ductile regime machining are explained. Mo…

Microelectromechanical systemsNanomanufacturingElectron beam machiningNanometrologyMachiningComputer scienceSystem of measurementLaser beam machiningMechanical engineeringGrinding
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Investigation of the phase transitions occurring during and after the dehydration of xylazine hydrochloride monohydrate.

2014

This paper reports an investigation of a complex solid state phase transition where two inter-converting polymorphs (X and A) of the pharmaceutical molecule xylazine hydrochloride formed and transformed during and after the dehydration of its monohydrate (H). The crystal structures of all three forms were compared. During the investigation of this solid state phase transition it was determined that the dehydration of H produced either a pure X form, or a mixture of the X and A forms. The phase composition depended on the sample preparation procedure and the experimental conditions. It was found that grinding of the hydrate enhanced the formation of polymorph X as a product of dehydration, w…

Models MolecularXylazinePhase transitionPharmaceutical ScienceCrystal structureCrystallography X-RayPhase TransitionDrug StabilitymedicineMoleculeTechnology PharmaceuticalSample preparationRelative humidityDehydrationDesiccationParticle SizeMicroscopyChemistryTemperatureWaterHumiditymedicine.diseaseGrindingCrystallographyKineticsHydrateCrystallizationPowder DiffractionInternational journal of pharmaceutics
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Fútbol y mundialización

2002

MundializaciónPoderDeportes-espectáculoGeopolítica futbolísticaFútbol-televisiónVínculos solidariosVidal-Beneyto JoséFútbolEstadiosGuerraPower del fútbolPublicaciones: Obra periodística: Columnas y artículos de opiniónHiperindividualismoLazos socialesIdentidad herméticaIdentidades nacionalesManipulación políticaPertenencia
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Comparison of the circulation of non-steroidal anti-inflammatory drugs in pharmacy in 2018 and 2021

2022

Nesteroīdie pretiekaisuma līdzekļi ir vieni no patērētākajiem medikamentiem pasaulē, taču to lietošanā pastāv riski, kas saistīti ar nelabvēlīgām blakusparādībām, zāļu mijiedarbībām un kontrindikācijām. Bieži vien šie riski rodas sabiedrības neinformētības dēļ saistībā ar nesteroīdo pretiekaisuma līdzekļu lietošanu. Darba mērķis: Noskaidrot, vai pēdējo gadu laikā ir palielinājies nesteroīdo pretiekaisuma līdzekļu patēriņš, ņemot vērā Covid-19 infekcijas izplatības periodu; noskaidrot vai aptiekā strādājošie farmācijas speciālisti informē aptiekas klientus par nesteroīdo pretiekaisuma līdzekļu pareizu lietošanu un riskiem; noskaidrot nesteroīdo pretiekaisuma līdzekļu patērētāju lietošanas pa…

Nelabvēlīga ietekmePareiza lietošanaNPLRisksFarmācijaKontrindikācijas
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Ierindas mācības vingrojumu nozīme sporta nodarbībās pirmsskolas izglītības iestādes vecākajā posmā

2022

Diplomdarba tēma ir “Ierindas mācības vingrojumu nozīme sporta nodarbībās pirmsskolas izglītības iestādes vecākajā posmā”. Diplomdarba mērķis ir, balstoties uz teorētiskām nostādnēm, izstrādāt disciplīnas nodrošinošas metodes un to kopsakarības ar ierindas mācības vingrojumu nozīmi sporta nodarbībās, izmantojot ierindas mācības vingrojumus, aprobēt tos sporta nodarbībās pirmsskolas izglītības iestādes vecākajā posmā un analizēt iegūtos rezultātus. Diplomdarba teorētiskajā daļā tika pētīta un analizēta ierindas mācība, pirmsskolas izglītības programma un saistība ar ierindas mācības vingrojumiem un pirmsskolas vecākās grupas bērnu fizioloģiski psiholoģiskais raksturojums. Praktiskajā daļā ti…

PedagoģijaIerindas mācībaPirmsskolaVingrojumiDisciplīnaSporta nodarbība
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Piegādes ķēdes modelēšana izmantojot masu apkalpošanas sistēmas

2019

Darba tēma: Piegādes ķēdes modelēšana izmantojot masu apkalpošanas sistēmas Darba autors: Daniels Dāvis Ore Darbs ir veltīts, lai pētītu piegādes rindu ķēdes modeļus. Noteikt kādas ir teorētiskās iespējas un pielietojums, ja tiek aplūkotas ikdienā sastopamas masu apkalpošanas sistēmas. Darbā tiek aprakstīts mākslīgi izveidots piegādes ķēdes modelis. Darbā tiek apkopota teorija, kas paskaidro rindu sistēmu modeļus un kā noteikt dažādus sistēmas kvalitātes parametrus. Tiek aprakstīta programma Java Modeling Tools, kas ir paredzēta, lai analizētu rindu sistēmas veicot simulācijas. Izmantojot apkopoto informāciju, tiek praktiski noteikti un aprakstīti kvalitātes rādītāji mākslīgi izveidotajam m…

Piegādes ķēdesVidējais sistēmas izpildes laiksMatemātikaVidējie rindu garumiMasu apkalpošanas sistēmas
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Controlled temperature grinding under modified atmosphere for Almond (Prunus Dulcis) paste production

2011

The quality of the raw material and the processing conditions have a great influence on the nutritional properties of finished products. This research is focused on almond paste production and aims at developing a new production process to deliver the high nutritional content of the raw almonds into the finished product. Raw almonds are composed mainly of fats (approx. 50%) and proteins (approx. 25%), and are particularly rich in omega 6 fatty acids, and are hence exposed to denaturation and oxidation phenomena during the traditional grinding/homogenization process. The study involved the analysis of six different local cultivars based upon the main nutritional indicators (protein content, …

Protein contentPrunus dulcisControlled atmosphereChemistryModified atmospherefood and beveragesProduction (economics)Food scienceCultivarRaw materialGrindingInternational Journal of Engineering, Science and Technology
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The effects of the tricyclic antidepressants desipramine, doxepin and iprindole on the isolated perfused rabbit heart.

1974

1. The right sympathetic nerves of isolated perfused rabbit hearts were stimulated electrically (1 msec, supramaximal strength, 15 sec) with increasing frequencies (0.25–20 Hz) at 3 min intervals before and 20 min after starting perfusion with desipramine, doxepin or iprindole. Ventricular rate, right atrial and right ventricular tensions were recorded using the transverse method. 2. Sympathic nerve stimulation caused ventricular arrhythmias in the presence of desipramine (3.3 and 5.0 · 10−6 M) and doxepin (1.6−4.7×10−6 M) but failed to produce arrhythmias in hearts not exposed to drugs, or after iprindole, cocaine and atropine. 3. When desipramine or doxepin was added to Tyrode solution co…

QuinidineAtropineMaleSympathetic Nervous SystemTime FactorsStimulationPropranololPharmacologyCocaineHeart RateDesipraminemedicineAnimalscardiovascular diseasesPharmacologyIprindolebusiness.industryDesipramineArrhythmias CardiacHeartGeneral MedicineDoxepinPropranololQuinidineAntidepressive AgentsElectric StimulationPerfusionAtropinecardiovascular systemIprindoleAutonomic Fibers PostganglionicFemaleDoxepinRabbitsbusinessPerfusionDrug Antagonismmedicine.drugNaunyn-Schmiedeberg's archives of pharmacology
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Book review of Shield, Andrew DJ (2019) Immigrants on Grindr. Race, Sexuality and Belonging Online. Cham: Palgrave Macmillan. 245 pp.

2022

RaceSociology and Political SciencerodullistaminenOnline gay researchrasismiGeography Planning and Developmentsosiaalinen mediaseksuaalisuusmaahanmuuttajatGrindrhomoseksuaalitkirja-arvostelutImmigrantsRacializationAnthropologystereotypiatSexualitydeittipalvelutLawetnisyysDemographyNordic Journal of Migration Research
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