Search results for "rake"
showing 10 items of 866 documents
NASH EVOLUTIONARY ALGORITHMS: TESTING PROBLEM SIZE IN RECONSTRUCTION PROBLEMS IN FRAME STRUCTURES
2016
The use of evolutionary algorithms has been enhanced in recent years for solving real engineering problems, where the requirements of intense computational calculations are needed, especially when computational engineering simulations are involved (use of finite element method, boundary element method, etc). The coupling of game-theory concepts in evolutionary algorithms has been a recent line of research which could enhance the efficiency of the optimum design procedure and the quality of the design solutions achieved. They have been applied in several fields of engineering and sciences, mainly, in aeronautical and structural engineering (e.g: in computational fluid dynamics and solid mech…
Diversity at the nanoscale : laser-oxidation of single-layer graphene affects Fmoc-phenylalanine surface-mediated self-assembly
2023
We report the effects of a laser-oxidized single layer graphene (SLG) surface on the self-assembly of amphiphilic gelator N-fluorenylmethoxycarbonyl-L-phenylalanine (Fmoc-Phe) towards an gel–SLG interface. Laser oxidation modulates the levels of hydrophobicity/hydrophilicity on the SLG surface. Atomic force, scanning electron, helium ion and scattering scanning nearfield optical microscopies (AFM, SEM, HIM, s-SNOM) were employed to assess the effects of surface properties on the secondary and tertiary organization of the formed Fmoc-Phe fibres at the SLG–gel interface. S-SNOM shows sheet-like secondary structures on both hydrophobic/hydrophilic areas of SLG and helical or disordered structu…
To stay or to leave? Career story models of Finnish sports graduates
2021
Previous research has revealed the challenges of sports graduates. Of particular concern is the question of how sports graduates navigate these difficulties in the job market. This study sought to understand the modern careers of sports graduates by describing different career story models among sports degree graduates. Life story data collection was employed to capture the various influences affecting career paths. The data consisted of 59 career life stories collected from Finnish sports degree graduates who were recruited through an open writing invitation. Data were analysed with the narrative method. Five typical career story models were identified among Finnish sports degree graduates…
N-[2-(2,2-Dimethylpropanamido)- pyrimidin-4-yl]-2,2-dimethyl- propanamide n-hexane 0.25-solvate hemihydrate
2013
The asymmetric unit of the title compound, C₁₄H₂₂N₄O₂·0.25C₆H₁₄·0.5H₂O, contains two independent molecules of 2,4-bis(pivaloylamino)pyrimidine (M) with similar conformations, one water molecule and one-half n-hexane solvent molecule situated on an inversion center. In one independent M molecule, one of the two tert-butyl groups is rotationally disordered between two orientations in a 3:2 ratio. The n-hexane solvent molecule is disordered between two conformations in the same ratio. The water molecule bridges two independent M molecules via O-H...O, N-H...O and O-H...N hydrogen bonds into a 2M·H₂O unit, and these units are further linked by N-H...N hydrogen bonds into chains running in the […
Experimental studies on carbon nanotubes and graphene functionalized via physical adsorption with cellulose and avidin
2018
In this Thesis I have experimentally studied structural, electronic, and optical properties of hybrids of nanocarbon materials, carbon nanotubes (CNT) and graphene, and certain biomacromolecules. The latter are especially xylan, a type of hemicellulose, and avidin, an important protein. Complexes of CNT with hemicellulose are attractive because the hybrid material is soluble in water. The conductive transport properties of thin films of CNT /hemicellulose have been systematically studied with different experimental tools. These are low temperature DC conduction measurements, Kelvin probe microscopy, and optical conductivity measurements at terahertz frequencies. The results clearly indicate …
Professori Emerita Anneli Eteläpellon haastattelu
2021
Professori Emerita Anneli Eteläpelto, olet tenhyt pitkän sekä kansallisella että kansainvälisellä tasolla merkittävän uran tutkijana. Kerrotko lyhyesti työhistoriastasi sekä siitä, miten sinusta alkujaan tuli tutkija? nonPeerReviewed
Yliopistot uudistuvat, uudistuuko henkilöstöjohtaminen?
2016
Yliopistojen henkilöstöjohtaminen on linkittynyt historiallisista syistä valtionhallinnon henkilöstöjohtamiseen. Tämän lisäksi yliopistolainsäädäntö on luonut vahvan juridisen kehikon henkilöstön pätevyyksille, tehtäväkausille ja tehtäville. Siirtymä byrokraattisesta henkilöstöhallinnosta kohti (strategista) henkilöstövoimavarojen johtamista on vasta tapahtumassa yliopistoissa. Tämä sisältää monia mahdollisuuksia mutta myös uhkia akateemisen työn ja työympäristöjen kehittämiselle. Tässä artikkelissa luomme katsauksen siihen miltä yliopistojen henkilöstöpolitikka näyttää vuonna 2016 ja kuinka yliopiston henkilöstöä johdetaan. Artikkelin aineistona toimii opetus- ja kulttuuriministeriön tilaa…
High-frequency filtering for low-temperature thermal transport studies in nanostructures
2012
Filtering of external unwanted RF-noise and thermal noise generated at the high-temperature parts of the measuring circuit is essential for successful measurements of thermal transport of nanostructures at low temperatures. This is because of thermal decoupling of the systems, i.e. the extreme weakness of thermal conduction at sub-Kelvin temperatures, leading easily to overheating even with excess power in sub pW range. We have started to improve the noise filtering in our cryogenic dilution refrigerators, which can reach a base temperature of ~ 50 mK. The miniature low-pass filters were made from special RF sealing compound Eccosorb CR124, stainless steel powder of grain size 50 micrometer…
The role of individual and parental expectations in student-athletes’ career adaptability profiles
2022
To support holistic development, adolescent student-athletes are encouraged to integrate sport with education/academics (i.e., dual careers). Career adaptability, as a psychological resource, may help youth athletes cope with transitions and successfully manage their careers. Individuals with a plan and higher expectations for the future demonstrate higher career adaptability and are better prepared for the future. In the present study, we examined what kinds of distinct career adaptability profiles could be identified among youth athletes in Finland at the transition stage to a sports high school (i.e., specialized school for athletes). Moreover, we investigated whether youth athletes’ suc…
Comment on "Crystallographic Snapshot of an Arrested Intermediate in the Biomimetic Activation of CO2"
2015
Out of focus: A recent Communication published in this journal describes the synthesis of [nBu4N]HCO3. The authors performed a single-crystal X-ray study that revealed a putative species described as an incipient hydroxide ion engaging in a long, and presumably weak, interaction with CO2. Our recent exploration of the coordination chemistry of CO2 with small ions leads us to believe that such an exceptional bonding situation is unlikely. Instead, we argue that the crystal structure is that of [nBu4N]O2CCH3 and therefore not representative of the bulk powder from the synthesis. peerReviewed