Search results for " engineering"
showing 10 items of 38291 documents
A magnetic look into the protecting layer of Au25 clusters
2016
The field of molecular metal clusters protected by organothiolates is experiencing a very rapid growth. So far, however, a clear understanding of the fine interactions between the cluster core and the capping monolayer has remained elusive, despite the importance of the latter in interfacing the former to the surrounding medium. Here, we describe a very sensitive methodology that enables comprehensive assessment of these interactions. Pulse electron nuclear double resonance (ENDOR) was employed to study the interaction of the unpaired electron with the protons of the alkanethiolate ligands in four structurally related paramagnetic Au25(SR)0 18 clusters (R ¼ ethyl, propyl, butyl, 2-methylpro…
Enhancing Light Emission in Interface Engineered Spin-OLEDs through Spin-Polarized Injection at High Voltages
2019
The quest for a spin-polarized organic light-emitting diode (spin-OLED) is a common goal in the emerging fields of molecular electronics and spintronics. In this device, two ferromagnetic (FM) electrodes are used to enhance the electroluminescence intensity of the OLED through a magnetic control of the spin polarization of the injected carriers. The major difficulty is that the driving voltage of an OLED device exceeds a few volts, while spin injection in organic materials is only efficient at low voltages. The fabrication of a spin-OLED that uses a conjugated polymer as bipolar spin collector layer and ferromagnetic electrodes is reported here. Through a careful engineering of the organic/…
RC Columns Strengthened with Steel Angles and Battens: Experimental Results and Design Procedure
2013
In this paper, an analytical model for the design of axially loaded strengthened RC columns with steel angles and battens is presented. Cases of directly loaded and not directly loaded steel angles are considered. The model considers the contribution in confinement pressures caused by transverse battens and steel angles and the contribution in terms of the load-carrying capacity of steel angles subjected to axial force and the bending moment. An experimental investigation on the compressive behavior of eight short, confined, RC columns externally strengthened with steel angles and steel battens with various pitches was carried out, and has been utilized as support for the analytical model. …
Planthology: an Application System for Plant Diseases Management
2017
The goals of modern agriculture are obtaining high yields that meet the increasing nutritional requirements of the World population. This is extremely difficult for three kind of reasons: i) the lands dedicated to agricultural use are strongly reduced in industrialized Countries; ii) farmers prefer an homogeneous product, because it is easier to manage, with consequent reduction of biodiversity, iii) globalization and climate change have led to the introduction of new pathogens and pest in environments other than original ones, resulting in serious production losses. The consequences of these problems, followed by not timely intervention leads to conditions that make not possible to obtain …
Sensor Technology for Sports Monitoring
2023
Over the past decades, huge steps have been made in the development of sensor technology related to sports monitoring [...]
Visualization of Moiré Magnons in Monolayer Ferromagnet
2023
| openaire: EC/H2020/788185/EU//E-DESIGN Two-dimensional magnetic materials provide an ideal platform to explore collective many-body excitations associated with spin fluctuations. In particular, it should be feasible to explore, manipulate, and ultimately design magnonic excitations in two-dimensional van der Waals magnets in a controllable way. Here we demonstrate the emergence of moiré magnon excitations, stemming from the interplay of spin-excitations in monolayer CrBr3 and the moiré pattern arising from the lattice mismatch with the underlying substrate. The existence of moiré magnons is further confirmed via inelastic quasiparticle interference, showing the appearance of a dispersion …
Motility analysis by means of video tracked markers
2018
Abstract The motility of the gastrointestinal tract is crucial for digestive activity and dysfunction can lead to severe disease pattern. A method for analysing the motility is needed when treatment approaches shall be evaluated. Therefore markers attached to different locations on the stomach and the bowel of pigs are video tracked in this research study. The markers are designed to provide a high contrast and have an adhesive side for fixation. Above the operation field a video camera has been placed to film the markers during the procedure. To analyse the video data a special algorithm has been implemented. The algorithm requires a registration process at the beginning of each recording …
Parents’ and children’s beliefs about learning Lithuanian language and their relationships to Lithuanian language achievement in Grade 2
2023
Straipsnyje nagrinėjamos 2-os klasės mokinių ir jų tėvų įsitikinimų apie lietuvių kalbos mokymąsi sąsajos su mokinių pasiekimais. Nustatyta, kad mokinių įsitikinimai apie savo gebėjimus, susidomėjimas lietuvių kalba, tėvų lūkesčiai bei 2-os klasės pasiekimai tarpusavyje siejasi teigiamais ryšiais. Kontroliuojant vaiko lytį, tėvų išsilavinimą bei 1-os klasės pasiekimus, geresnius pasiekimus 2-oje klasėje prognozuoja aukštesni tėvų lūkesčiai ir geresni vaikų savų gebėjimų vertinimai. Esminiai žodžiai: įsitikinimai apie gebėjimus, užduoties vertė, tėvų lūkesčiai, lietuvių kalbos pasiekimai. Previous studies have shown that as early as elementary school, children’s language skills are determine…
Kieltenopetus vuosiluokilla 1–3: Miten oppilaat siihen suhtautuvat ja mitä tuloksia sillä saavutetaan puolen vuoden opiskelun aikana?
2019

 
 
 As of January 2020, all Finnish pupils are to start their foreign language studies in the first grade. This study examined the effects of early language teaching by comparing pupils in grades 1, 2 and 3. The pupils had started studying English in August 2017 and had all had roughly the same number of English lessons by the time of the study in early 2018. The study examined pupils’ attitudes towards English and studying English as well as how pupils use English in their free time. Pupils also self-assessed their English skills and completed vocabulary and text segmentation tasks. The results show that the pupils had an overall positive attitude towards English and langu…
Motivation to Study for PhD Degree: Case of Latvia
2014
AbstractThis paper studies what goals individuals pursue when enrolling in doctoral studies and how it affects the characteristics of the university they find important for choosing it and information sources on doctoral programme they find useful. It uses data collected in 2014 from PhD students and PhD candidates in 14 universities in Latvia and from students born in Latvia but studying abroad. The main result is substantial heterogeneity of goals by field of study, allowing to divide the latter into three groups. Group 1 contains arts & humanities, economics, and education & psychology. Compared to it, students from Group 2 (biology, agriculture, environment & geoscience; physics, mathem…