Search results for "valmistus"

Considering lithium-ion battery 3D-printing via thermoplastic material extrusion and polymer powder bed fusion

2021

In this paper, the ability to 3D print lithium-ion batteries through thermoplastic material extrusion and polymer powder bed fusion is considered. Focused on the formulation of positive electrodes composed of polypropylene, LiFePO4 as active material, and conductive additives, advantages and drawbacks of both additive manufacturing technologies, are thoroughly discussed from the electrochemical, electrical, morphological and mechanical perspectives. Based on these preliminary results, strategies to further optimize the electrochemical performances are proposed. Through a comprehensive modeling study, the enhanced electrochemical suitability at high current densities of various complex three…

LaTeX ja AMS-LaTeX : opus asiatekstin ladonnasta

1998

Tekstintuotanto keskiajalla

2004

Translingual quoting in journalism : behind the scenes of Swiss television newsrooms

2019

This chapter focuses on translingual quoting (TQ), i.e. the subprocess of news-writing by which utterances from sources are both quoted and translated. Analyses of journalists’ mental and material activities suggest conceptualizing TQ as a complex and dynamic activity in which journalists’ individual and collective (e.g., institutional) language awareness, knowledge, and practices interact with multi-layered contexts of text production. Based on this empirically and theoretically grounded concept of TQ, the chapter presents a two-part typology of TQ: In sequential TQ, ready-made media items or interview materials are translated into another language; in parallel TQ, interviews and/or texts …

Effect of Reaction Conditions on the Coprecipitation of Ni(OH)2 for Lithium-Ion Batteries

2023

Electrochemical performance of cathode active materials (CAMs) is dependent on the properties of coprecipitated precursors (pCAMs). This is a sensitive process affected by several reaction parameters such as temperature, pH, concentration of reactants, agitation rate, and residence time. In this paper, the effect of parameters influencing the particle size growth and the physical properties, such as particle morphology and tapped density, was studied in the coprecipitation of Ni(OH)2. Formation of a homogeneous population with narrow particle size distribution was observed, followed by a more heterogeneous population of dense particles. Ammonia concentration and residence time had significa…

Roles of Exogenous Technologies in Vehicle Innovation: Cases from a Japan’s Automotive Parts Manufacturing Firm

2017

This paper explores the roles of technological innovations in the growth of Japan’s motor vehicle industry, mainly from technology spillover perspective from the early 2000s to today. An empirical analysis focusing on business performances, R&D investments, and patent applications taking a noteworthy unique case in Japan was attempted. Empirical analyses on the productivity of patent to technology stock, use of exogenous technologies for their own technological innovation on its Automotive Business Unit elucidated that innovation capabilities, incorporation of exogenous technologies, and profit generation makes a virtuous cycle of continuous technological innovation. Furthermore, we fou…

Puun typpiyhdisteet sekä niiden haihtuvien reaktiotuotteiden muodostumiseen vaikuttavat tekijät sulfaattiprosessissa

2008

Mukautuvat viipalointialgoritmit lisäävässä valmistuksessa

2017

Lisäävä valmistus on kasvattanut nopeasti suosiotaan viime vuosina. Viipalointi on oleellinen osa lisäävää valmistusta, mikä vaikuttaa esimerkiksi valmistettavan esineen pinnan laatuun, valmistusnopeuteen sekä mekaanisiin ominaisuuksiin. Tämän tutkielman tarkoituksena on selvittää, minkälaisia ominaisuuksia viipalointialgoritmilta vaaditaan ja minkälaisia menetelmiä niiden toteuttamiseen on olemassa. Mukautuvaa viipalointialgoritmia käyttämällä voidaan nopeuttaa esineen valmistusaikaa ilman, että pinnan laatu heikentyy. Additive manufacturing has rapidly gained popularity in recent years. Slicing is an important part of additive manufacturin processes. It affects the manufactured part’s sur…