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Haja-asutusalueiden sähkönjakelujärjestelmien kehittäminen – erityisesti 1000 V jakelujännitteen käyttömahdollisuudet
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 18.03.2005)Yhteiskunnan riippuvuus sähköstä on lisääntynyt voimakkaasti viime vuosikymmenien aikana. Sähkönjakelussa esiintyneet lyhyet ja pitkät keskeytykset ovat osoittaneet yhteiskunnan haavoittuvuuden ja yhteiskunta kestää entistä ... -
Heat sealing and convertibility of coated paper materials in vertical form fill and seal machine
Lappeenranta-Lahti University of Technology LUT : 1187 (Lappeenranta-Lahti University of Technology LUT, 03.02.2025)Challenges regarding the heat sealing and convertibility of coated papers in vertical form, fill, and seal (VFFS) machines were investigated. This research focused on enhancing the use of coated papers in VFFS packaging ... -
Heterarkkisen verkostoyhteistyön johtamistarpeet verkoston muotoutumisvaiheessa
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 04.11.2016)Verkostojohtamisesta on tullut ajankohtainen tutkimusaihe viimeisen 15 vuoden aikana. Verkostojen johtaminen on osoittautunut monimutkaiseksi ilmiöksi, johon organisaatioiden johtamisopit eivät yksin riitä. Tämä tutkimus ... -
Heterogeneous mass transfer in fluidized beds by computational fluid dynamics
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 02.12.2014)The main objective of this research is to estimate and characterize heterogeneous mass transfer coefficients in bench- and pilot-scale fluidized bed processes by the means of computational fluid dynamics (CFD). A further ... -
Heuristic similarity- and distance-based supervised feature selection methods
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 16.12.2019)In the field of machine learning, the available data often contain many features to describe phenomena. This can pose a problem since only those features that are relevant to characterize the target concept are needed, ... -
Heuristic-Based Packetized Energy Management for Residential Electricity Demand
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 07.06.2023)The unprecedented growth of distributed energy resources (DERs) has brought limitless opportunities to reshape the energy infrastructure and instigate urgent reforms for technoeconomic advancements, business models, ... -
High Power Fiber Laser Welding of Thick Section Materials – Process Performance and Weld Properties
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 27.11.2019)High power fiber laser systems have reached output powers far beyond 30 kW and a fiber laser source of 100 kW output power has recently become available for fundamental research. With the high laser power that is now ... -
High-specific-power permanent magnet synchronous machine : design, analysis, and validation
Acta Universitatis Lappeenrantaensis : 1214 (Lappeenranta-Lahti University of Technology LUT, 04.07.2025)The demand for high-specific-power permanent magnet synchronous machines (PMSMs) has grown significantly in application areas such as aerospace and electric mobility, where compactness, lightweight construction, and high ... -
The high-speed induction motor: calculating the effects of solid-rotor material on machine characteristics
Acta Polytechnica Scandinavica, Electrical Engineering Series (the Finnish Academy of Technology, 1991)A method for the analysis of high-speed solid-rotor induction motors in presented. The analysis is based on a new combination of the three dimensional linear method and the transfer matrix method. Both saturation and finite ... -
High-speed slotless permanent magnet machines: modeling and design frameworks
(Eindhoven University of Technology, 01.06.2017)The number of applications driven by high-speed electrical machines has drasti-cally increased during the recent decades. Some applications require high speedsto operate effectively, e.g. turbocompressors, spindles and ... -
High-Speed Solid-Rotor Induction Machine – Electromagnetic Calculation and Design
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 03.12.2004)Within the latest decade high-speed motor technology has been increasingly commonly applied within the range of medium and large power. More particularly, applications like such involved with gas movement and compression ... -
Hot water extraction and membrane filtration processes in fractionation and recovery of value-added compounds from wood and plant residues
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 16.03.2017)The production of green chemicals and sustainable energy from renewable resources is gaining global interest. Special attention is paid to the refining of biomass residues, e.g. forest and agricultural wastes, into high ... -
Households’ willingness to engage in demand response in the Finnish retail electricity market: an empirical study
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 02.10.2015)If electricity users adjusted their consumption patterns according to time-variable electricity prices or other signals about the state of the power system, generation and network assets could be used more efficiently, ... -
How to use warehouse management system sustainably
Acta Universitatis Lappeenrantaensis : 1184 (Lappeenranta-Lahti University of Technology LUT, 16.12.2024)A warehouse management system (WMS) is software designed to handle, automate, and optimize warehousing operations. Companies deploy WMS to enhance warehouse productivity; however, attention needs to be paid to more than ... -
Human factors modeling using machine learning for fusion energy applications
Acta Universitatis Lappeenrantaensis : 1235 (Lappeenranta-Lahti University of Technology LUT, 07.11.2025)This dissertation was aimed at investigating the challenges of cognitive fatigue and workload in remote handling operations within fusion reactor environments. An integrated multimodal framework was proposed, combining ... -
Hybrid LC Filter for Power Electronic Drives: Theory and Implementation
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 23.10.2009)Power electronic converter drives use, for the sake of high efficiency, pulse-width modulation that results in sequences of high-voltage high-frequency steep-edged pulses. Such a signal contains a set of high harmonics not ... -
Hybrid modelling methods for epidemiological studies
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 23.06.2022)Epidemiological modelling plays an important role in the study of the distribution of a disease and its impact in a given population, and helps to suggest effective control and prevention measures. The complexity of models ... -
Hydrodynamics and mass transfer in airlift bioreactors: experimental and numerical simulation analysis
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 19.12.2017)Airlift bioreactors are widely used in industrial applications such as wastewater treatment, gas decontamination and other biochemical processes, and such systems have generated increasing academic and industrial interest. ... -
Hydrometallurgical recovery of valuable metals from secondary raw materials
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 11.12.2013)Wastes and side streams in the mining industry and different anthropogenic wastes often contain valuable metals in such concentrations their recovery may be economically viable. These raw materials are collectively called ... -
Hydrothermal carbonization in the synthesis of sustainable porous carbon materials
Acta Universitatis Lappeenrantaensis (Lappeenranta University of Technology, 06.07.2016)Carbon materials are found versatile and applicable in wide range of applications. During the recent years research of carbon materials has focussed on the search of environmentally friendly, sustainable, renewable and ...
