54 research outputs found
Study of the onset of deformation and shape coexistence in Ar via the inverse kinematics () reaction
Lifetime measurements of excited states in neutron-rich nuclei around 48 Ca
The lifetimes of the first excited states of the N = 30 isotones 50Ca and 51Sc and the Z = 18 isotopes 44â46Ar isotopes have been determined using a novel technique that combines the Recoil Distance Doppler Shift method with the CLARA-PRISMA spectrometers in multinucleon transfer reactions. The results allow determinination of the effective charges above 48Ca and test the strength of the N = 28 magic number when moving away from the stability line.Gadea Raga, AndrĂ©s, [email protected] ; Algora, Alejandro, [email protected] ; Rubio Barroso, Berta, [email protected]
Characterisation of lattice damage formation in tantalum irradiated at variable temperatures
The formation of radiation-induced dislocation loops and voids in tantalum at 180(2), 345(3) and 590(5)°C was assessed by 3MeV proton irradiation experiments and subsequent damage characterisation using transmission electron microscopy. Voids formed at 345(3)°C and were arranged into a body centred cubic lattice at a damage level of 0.55 dpa. The low vacancy mobility at 180(2)°C impedes enough vacancy clustering and therefore the formation of voids visible by TEM. At 590(5)°C the Burgers vector of the interstitial-type dislocation loops is a<100>, instead of the a/2 <111> Burgers vector characteristic of the loops at 180(2) and 345(3)°C. The lower mobility of a<100> loops hinders the formation of voids at 590(5)°C up to a damage level of 0.55 dpa.</p
Radiation-induced void formation and ordering in Ta-W alloys
We have assessed the formation and evolution of void and dislocation arrangements in Ta, Ta-5wt.%W and Ta-10wt.%W as a function of radiation level at a temperature of 345 ± 3 °C, by combining proton irradiation experiments, transmission electron microscopy and nano-hardness measurements. The damaged structure of tantalum at 0.1 dpa is characterized by the presence of a/2 ă111ă interstitial dislocation loops and randomly distributed voids, whereas only dislocation loops are observed in the two alloys. Void ordering occurs in tantalum at 0.25 dpa, together with the appearance of dense dislocation tangles. A further increase in damage level leads to a continuous nucleation and growth of voids, and saturation is not attained at a damage level of 1.55 dpa. In contrast, the average size and number density of dislocation loops increases gradually with damage level in the two alloys, and voids only form at 1.55 dpa. Tungsten delays the loop evolution and therefore the formation of radiation-induced voids.</p
Characterisation of lattice damage formation in tantalum irradiated at variable temperatures
The formation of radiation-induced dislocation loops and voids in tantalum at 180(2), 345(3) and 590(5)°C was assessed by 3MeV proton irradiation experiments and subsequent damage characterisation using transmission electron microscopy. Voids formed at 345(3)°C and were arranged into a body centred cubic lattice at a damage level of 0.55 dpa. The low vacancy mobility at 180(2)°C impedes enough vacancy clustering and therefore the formation of voids visible by TEM. At 590(5)°C the Burgers vector of the interstitial-type dislocation loops is a<100>, instead of the a/2 <111> Burgers vector characteristic of the loops at 180(2) and 345(3)°C. The lower mobility of a<100> loops hinders the formation of voids at 590(5)°C up to a damage level of 0.55 dpa.</p
InkilÀnhovin palveluiden tunnettuus- ja mielikuvatutkimus
OpinnÀytetyöni aihe on tunnettuus- ja mielikuvatutkimus InkilÀnhovi ry:lle, joka on RiihimÀellÀ sijaitseva palvelutalo. Tutkimuksen tarkoituksena on kartoittaa sitÀ, miten hyvin InkilÀnhovin eri sidosryhmÀt tuntevat ja tietÀvÀt sen tarjoamat palvelut sekÀ toiminnot ja minkÀlaisia mielikuvia heillÀ niistÀ on. LisÀksi tutkimuksessa kysytÀÀn vastaajien mielipiteitÀ ja mielikuvia InkilÀnhovista sekÀ mahdollisia InkilÀnhovin toimintaan liittyviÀ kehitys- ja parannusehdotuksia. InkilÀnhovi ry juhli viime vuonna kymmenettÀ toimintavuottaan ja tunnettuustutkimus toteutettiin osana InkilÀnhovin juhlavuoden toteutusta.
InkilÀnhovi ry on 2001 perustettu, RiihimÀellÀ sijaitseva palvelutalo, joka tarjoaa palvelujaan vanhuksille, kehitysvammaisille ja veteraaneille. InkilÀnhovin toiminta painottuu kolmeen pÀÀryhmÀÀn, joita ovat muun muassa erilaiset asumismuodot, asiointipalvelu ja pÀivÀtoiminta. InkilÀnhovin tarkoituksena on toimia vanhusten, vammaisten ja veteraanien elin- ja asunto-olojen parantamiseksi sekÀ psyykkisen, sosiaalisen ja fyysisen hyvinvoinnin edistÀmiseksi.
Tutkimus on toteutettu mÀÀrÀllisenÀ kyselytutkimuksena sekÀ paperisena kyselylomakkeena ettÀ sÀhköisenÀ e-lomakkeena. Kysely on lÀhetetty InkilÀnhovin eri sidosryhmille, kuten asukkaille, asiakkaille, yhteistyökumppaneille ja InkilÀnhovin jÀsenyhdistyksille.
Tulokset ovat pÀÀasiassa positiivisia ja InkilÀnhovia pidetÀÀn hyvÀnÀ palvelutalona. Asukkaat ja asiakkaat ovat tyytyvÀisiÀ palveluihin ja InkilÀnhovin ilmapiiriin. Vastaajille on jÀÀnyt hyvÀ mielikuva kÀydessÀÀn InkilÀnhovissa, ja he ovat tyytyvÀisiÀ InkilÀnhovin toimintaan. Palautteena oli muun muassa, ettÀ toiminta on hyvÀÀ ja sitÀ toivotaan lisÀttÀvÀn.
Kyselyyn vastanneilta tuli kehitys- ja parannusehdotuksia sekÀ toiveita InkilÀnhovin toimintaan liittyen. Toivottiin esimerkiksi InkilÀnhovin asukkaille virikkeellistÀ pÀivÀtoimintaa, kuten matkoja, tapahtumia, museoita tai nÀyttelyitÀ. Toiveena oli, ettÀ ikÀrajaa nostettaisiin 65:stÀ ylöspÀin, jolloin hyvÀkuntoisilla iÀkkÀÀmmillÀkin olisi mahdollisuus osallistua toimintaan. PÀivÀtoiminnan ja ryhmÀtoiminnan yhdistelmÀryhmien lisÀÀmistÀ toivottiin.
JatkotoimenpiteenÀ kannattaa lisÀtÀ markkinointia nykyisille palveluille ja kehittÀÀ toimintaa lisÀÀmÀllÀ iltatoimintaa.Research of awareness and image
My final work subject is knowledge and image research for company InkilÀnhovi ry which provides assistance and support services for everyday living and is located in RiihimÀki. The meaning of research is to find out how well different focused groups are aware of InkilÀnhovi and their services and what kind of opinions or images they have about InkilÀnhovi and their services. The research includes questions that the respondents wished to have answered including those connected to improvements in relation to InkilÀnhovi and its services. InkilÀnhovi is celebrating their tenth anniversary and knowledge research is a part of the whole years plan.
InkilĂ€nhovi was established in 2001, together with InkilĂ€nhovi`s âliving assistance premisesâ in RiihimĂ€ki which execute their services for seniors, veterans and retarded people. The action of InkilĂ€nhovi focuses on three main group and these are: running an errands service, daytime activities and overall living services. The meaning of InkilĂ€nhovi is to produce services which focus on seniors, veterans and retarded peoples better living situations and to improve mental, social and physical wellness.
The research has been carried out by a quantitative method by means of a questionnaire in paper format. The questionnaire was sent to InkilÀnhovi customers, (the people who are resident there) and to co-operation partners and also to InkilÀnhovi union members.
Results of research are mostly positive and the answers show InkilĂ€nhovi as a good âliving assistance premisesâ. Customers and people who are living in InkilĂ€nhovi are pleased with the services and atmosphere in InkilĂ€nhovi. Respondents have stated that there is a good image of InkilĂ€nhovi and they are pleased with the activity of InkilĂ€nhovi.
The feedback given to InkilÀnhovi was that respondents like the activities which InkilÀnhovi offers and they would like to have more of it. Improvements and development suggestions that respondents would like to make included: respondents wished more day time activities for those people who are living in InkilÀnhovi.
The wish was that the age limit would be raised higher than 65 so that healthier older people would have an opportunity to participate in the activities. It was also hoped that there could be a greater combining of groups for day time activity and group activity generally.
There should be increased marketing for the present services that are offered
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