Viimeksi syötetyt
Aineistot 1-20 / 13777
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Functionality of a novel pilot-scale freeze crystallizer in wastewater purification
(2019)Freeze crystallization (FC) is an energy efficient purification process employed to get the high product purity. During FC solvent freezes out and left concentrate behind. This characteristic of freeze crystallization makes ... -
System code analysis of accumulator nitrogen discharge during LOCA experiment at PWR PACTEL test facility
(Elsevier, 20.08.2019)The hydroaccumulators in pressurized water reactors can inject nitrogen into the reactor system. In the primary system, nitrogen affects core cooling and accident management, both adversely and beneficially. The PWR PACTEL ... -
Assessing the Performance of Functional Expansion Tallies in the Serpent 2 Monte Carlo Code
(American Nuclear Society, 29.08.2019)Serpent has recently been implemented with a novel functional expansion tally (FET) as an alternative to tallying events occurring in specifically defined bins. Test calculations were performed to assess the potential of ... -
Hienojakoisten massojen karakterisointi Schopper-Riegler -menetelmällä
(2019)Paperimassan suotautuvuuden mittaaminen laboratorio-olosuhteissa on oleellista massojen jauhautuneisuuden vertailemiseksi. Eräs tärkeimmistä suotautuvuusmittauksista on Schopper-Riegler -menetelmä (SR-menetelmä), joka ... -
Solids and sulfate ions removal from mine water by dissolved air flotation
(2019)Environmental and acceptance risks related to water discharge together with raw water scarcity at mineral processing plants and their surroundings demand the implementation of correct measurements to reduce water consumption. ... -
Methods for lifecycle support of hydraulically actuated mobile working machines using IoT and digital twin concepts
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 25.10.2019)The Internet of Things and Digital Twins are popular but quite distant concepts nowadays. Many problems arise along the efforts of combining these concepts. This research work focuses on these problems and considers the ... -
Development of an adaptive control system for automatic regulation of voltage and reactive power for power substation 500/220/110/10 kV
(2019)In this master’s thesis the development of an adaptive PID controller for the automatic control system of reactive power compensation units, installed at the high voltage power substation of 500 kV is considered. The control ... -
Supporting strategic asset management in complex and uncertain decision contexts
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 25.10.2019)Strategic asset management can be defined as strategic-level coordinated activity of an organization to realize value from assets. Strategic asset management decisions are often uncertain and complex. Uncertainty refers ... -
Two alternative process routes for recovering pure indium from waste liquid crystal display panels
(Elsevier, 25.09.2019)Recovering indium from liquid crystal display (LCD) screen waste is important from a sustainability point of view for several reasons: the environmentally hazardous metals are not landfilled, the recovery process involves ... -
Predicting the customer churn with machine learning methods : case: private insurance customer data
(2019)Customer churn prediction is a field that uses machine learning to predict whether a customer is going to leave the company or not. The goal of this thesis is to study the churn prediction field and apply the knowledge in ... -
Analyytikoiden suosituksiin perustuvan sijoitusstrategian suoriutuminen Suomen osakemarkkinoilla
(2019)Tämän tutkielman tavoitteena on selvittää, onko sijoittajien mahdollista ansaita suurempia tuottoja tai välttää tappiota tekemällä sijoituspäätöksiä analyytikoiden konsensussuosituksiin perustuen Suomen ... -
Mechanical and chemical processing of multilayer materials as a part of recycling process
(2019)Unarguably light weight and multiple functionalities of multilayer material are the prime reason for its increasing market in the packaging industry. Nevertheless, considering circular economy into consideration it is ... -
Suitability of electrocoagulation for industrial wastewaters and changing water quality
(2019)Electrochemical water treatment methods are well suited for treatment of wastewater without a need for coagulation chemicals thus eliminating residual concentrations. The target of this master thesis is to evaluate the ... -
On weldability of thick section austenitic stainless steel using laser processes
Acta Universitatis Lappeenrantaensis (Lappeenranta-Lahti University of Technology LUT, 25.10.2019)Laser welding and its different process variations using filler metal addition have increasingly become the preferred joining technology of the metal structure fabrication industry. The essential characteristics of laser ... -
Prototype implementation of perimetry on virtual reality headset
(2019)In this work we provide prototype of a program that can make perimetry (visual field test) on VR-headset. Implementation works on Windows operating system, which has Vulkan drive and computer has graphical processing unit ... -
Nummelan Prisman laajennuksen vaikutus kilpailuympäristöön Vihdin kunnassa
(2019)Nummelan Prismaa oli ensimmäisen kerran suunniteltu rakennettavaksi jo vuonna 1989. Prisma valmistui vuonna 2000. Jo rakentamisen aikana huomattiin, että Prisma tulee tarvitsemaan laajennusta. Keskustelut kunnan kanssa ... -
Stimulating organisational creativity with theatrical improvisation
(Elsevier, 24.10.2017)Although organisational creativity has become an increasingly important performance driver, little is known about how it can be built and stimulated. The existing literature has mostly focused on techniques for improving ... -
Multi-agent system for control of a group of reactive power compensators
(2019)Nowadays there are different ways of controlling a group of reactive power compensators at substation but most of them tend to be deterministic and rigid. In other words, they do not take into account the possibility of a ... -
Suomalaisten yritysten konkurssin ennustaminen konkurssiennustemalleilla
(2019)Konkurssin ennustamisen tärkeys on korostunut nykyaikana. Tämän riskin havainnoimiseksi on kehitetty konkurssiennustemalleja, joiden kehitystyö jatkuu vieläkin aktiivisena. Vanhimpien mallien tuloksista on jonkin verran ... -
Anisotrooppisuuden vaikutus teräksen väsymiskestävyyteen : väsytyskoelaitteiston suunnittelu.
(2019)Tämän kandidaatintyön tarkoituksena on suunnitella väsytyskoelaitteisto pyörökoesauvoille, perehtyä tutkimuskirjallisuuden avulla väsymisen mekanismiin, teräksen anisotrooppisuuteen ja anisotrooppisuuden vaikutuksista ...
