Search results for "PEN"
showing 10 items of 17730 documents
Habituating Students to IPR Questions During Creative Project Work
2017
Scalable implementation of dependence clustering in Apache Spark
2017
This article proposes a scalable version of the Dependence Clustering algorithm which belongs to the class of spectral clustering methods. The method is implemented in Apache Spark using GraphX API primitives. Moreover, a fast approximate diffusion procedure that enables algorithms of spectral clustering type in Spark environment is introduced. In addition, the proposed algorithm is benchmarked against Spectral clustering. Results of applying the method to real-life data allow concluding that the implementation scales well, yet demonstrating good performance for densely connected graphs. peerReviewed
High-precision measurement of the mass difference between 102Pd and 102Ru
2019
Abstract The Q-value for the neutrinoless double electron capture on 102Pd, Qϵϵ(102Pd), is determined as the atomic mass difference between 102Pd and 102Ru. A precise measurement of the Qϵϵ(102Pd) at the SHIPTRAP Penning trap showed a more than 10σ deviation to the adopted Atomic Mass Evaluation (AME) value. The reliability of the SHIPTRAP measurement was challenged because the AME value was based on numerous experiments including β and electron capture decays and very precise (n, γ) data, all agreeing with each other. To solve the discrepancy, the Qϵϵ(102Pd) has now been determined with the JYFLTRAP Penning trap at the IGISOL facility in the Accelerator Laboratory of the University of Jyva…
TDDFT Analysis of Optical Properties of Thiol Monolayer-Protected Gold and Intermetallic Silver–Gold Au144(SR)60 and Au84Ag60(SR)60 Clusters
2014
The optical absorption spectra of atomistic model structures for experimentally isolated all-gold Au144(SR)60 and intermetallic Au84Ag60(SR)60 clusters are systematically analyzed from linear-response time-dependent density functional theory (LR-TDDFT) and time-dependent density functional perturbation theory (TD-DFPT) calculations. The computed spectra, utilizing the atomistic model for Au144(SR)60 published by us in 2009, reproduce closely the experimental observations for corresponding isolated compounds, reported previously by Kumara and Dass in 2011. A collective dipole oscillation within the metal cores of the all-gold and intermetallic clusters is formed as response to light in the v…
Optical Properties of Monolayer-Protected Aluminum Clusters: Time-Dependent Density Functional Theory Study
2015
We examine the electronic and optical properties of experimentally known monolayer-protected aluminum clusters Al4(C5H5)4, Al50(C5Me5)12, and Al69(N(SiMe3)2)183– using time-dependent density functional theory. By comparing Al4(C5H5)4 and the theoretical Al4(N(SiMe3)2)4 cluster, we observe significant changes in the optical absorption spectra caused by different hybridization between metal core and ligands. Using these initial observations, we explain the calculated spectra of Al50(C5Me5)12 and Al69(N(SiMe3)2)183–. Al50(C5Me5)12 shows a structured spectrum with clear regions of low-intensity core-to-core transitions followed by high-intensity ligand-to-core transitions due to its high symmet…
Visualising maritime vessel open data for better situational awareness in ice conditions
2018
Situational awareness of maritime vessels in ice conditions is important for the operation of supply chains. In the artic sea areas, the ice conditions pose a major challenge for maritime vessels getting stuck in the ice and being significantly delayed in arrival to harbor. Data science and open data provide new opportunities to overcome these challenges. This paper introduces available open data sources and data visualizations that can be used to develop applications, for example, for detecting maritime vessel collision, predicting estimated time of arrival to harbor, as well as maritime vessel route optimization in ice conditions. The paper begins by introducing available open data source…
Is there a Nordic model of final disposal of spent nuclear fuel? Governance insights from Finland and Sweden
2017
This paper explores citizen participation in Swedish and Finnish regulatory processes for final disposal of spent nuclear fuel (SNF). Finland and Sweden are considered the most advanced worldwide in term of SNF disposal plans. Our aim is to analyze the institutional waste management frameworks, focusing on the role of civil society organizations (CSOs); how lay-people and civil society organizations have been able to participate and contribute to radioactive waste licensing processes; and the nature of radioactive waste risk debates. We review official documents of the waste companies and nuclear safety authorities, plus information from civil society organizations and laypeople. Our theore…
Avoimen tieteen viikko Liègen yliopistossa – Mitä opittiin?
2017
Belgialainen Liègen (ULg) yliopistokirjasto järjesti jo kolmannen kerran Open access -aiheisen Erasmus-viikon korkeakouluhenkilöstölle. Ohjelma oli rakennettu niin Liègen yliopiston kirjaston asiantuntijoiden kuin osallistujien esityksistä.Esitysten aiheina oli mm. avoin julkiseminen, tekijänoikeudet, aineistonhallinta, avoimen tieteen työkalut ja palvelut. Mitä viikosta jäi käteen suomalaisille osallistujille?
Naiskuva ja ekspressionismi Kuopion koulun taiteessa 1980‒1986
2022
Artikkelini aiheena ovat Kuopion koulun taiteilijoiden naisaiheiset teokset. Kuopion kouluksi tai koulukunnaksi kutsuttiin väljää kuvataiteilijoiden ryhmää, jonka ydinhenkilöitä olivat Pauno Pohjolainen (s. 1949), Markku Kolehmainen (s. 1951), Pentti Meklin (s. 1952) ja Teemu Saukkonen (s. 1954). Tarkastelemani teokset ajoittuvat vuosille 1980‒1986 ja ovat ilmaisultaan suurimmaksi osaksi uusekspressionistisia. Analysoin, millaisena nainen esitetään Kuopion koulun teoksissa. Teokset kuvaavat, miten nainen on ylistetty, alistettu ja ylistämällä alistettu, mutta myös voimakas ja tasa-arvoinen. 1980-luvulla teokset provosoivat ja kyseenalaistivat porvarillisia arvoja kuten saksalainen ekspressi…
El crimen de agresión : ¿es posible su persecución judicial internacional?
2021
The paper analyses the crime of aggression, in particular the recent activation of the jurisdiction of the International Criminal Court over it and the main obstacles to its effective prosecution, taking into consideration the low number of States Parties that have ratified the Amendments that regulate it