1,142 research outputs found
The Effect of Chop Length and Additive on Silage Intake and Milk Production in Cows
Effects of reduced silage chop length on silage intake and milk production by dairy cows have been variable. Chopping of grass at harvest generally improves silage fermentation quality and consequently intake. The objective of this study was to assess the effect of chopping flail harvested silage ensiled with acid or biological additive prior to feeding on intake, milk yield and milk composition in dairy cows
Effects of Access Time to Feed and Sodium Bicarbonate in Cows Given Different Silages
Animal performance is closely related to silage intake, which might be affected by access time to feed, silage fermentation quality or using neutralising agents. The aim of this study was to assess the effects of access time to silage or addition of sodium bicarbonate on silage intake, milk yield and milk composition in diets based on restrictively fermented acid-treated or extensively fermented enzyme-treated grass silage
Self-assembled GaIn(N)As quantum dots: Enhanced luminescence at 1.3 ”m
Self-assembled GaIn(N)As quantum dots are fabricated on GaAs by atmospheric pressuremetalorganic vapor-phase epitaxy using dimethylhydrazine (DMHy) precursor as a nitrogen source. The incorporation of nitrogen into the islands is observed to be negligible. However, the areal density of the islands is increased by up to one order of magnitude compared to that of the respective GaInAs islands. The GaIn(N)As island size can also be controlled by varying the DMHy flow. An enhancement of the room-temperature luminescence at 1.3 ÎŒm is observed in the GaIn(N)As samples grown with DMHy.Peer reviewe
Julkisivun metamorfoosi:rakennuksen muuttuvan hahmon arvo
TiivistelmÀ. DiplomityössÀ tarkastellaan julkisivun metamorfoosia ja rakennuksen ajassa muuttuvan hahmon arvoa. Teksti rakentuu niin, ettÀ alussa kÀydÀÀn lÀpi lyhyesti estetiikan perusteita. Tavoitteena on ymmÀrtÀÀ paremmin kokemuksellisuutta, joka arkkitehtuurin ajallisuuteen liittyy. TÀmÀn jÀlkeen esitellÀÀn ajallisuuteen keskittyneitÀ estetiikkasuuntauksia. Seuraavassa osiossa kÀsitellÀÀn huomioitavia asioita liittyen julkisivusuunnitteluun, julkisivun elinkaareen ja sen visuaalisuuteen. ViimeisessÀ osiossa nÀytetÀÀn tapauksia, jossa ikÀÀntyminen on huomioitu jo suunnittelun tasolla ja lopuksi esittelen oman nÀkemykseni, kuinka rakennuksen visuaalinen vanheneminen voitaisiin huomioida yleisesti julkisivua suunniteltaessa.
Miksi rakennuksen ikÀÀntyvÀ hahmo jakaa mielipiteitÀ?
Sanasemantiikan kannalta âpatinaâ-termin perusmerkityksen lisĂ€ksi se on konnotaatioltaan positiivinen eli se assosioidaan usein hyvĂ€nĂ€ pidettyihin ominaisuuksiin ja arvoihin. Silti denotaation eli perusmerkityksen mÀÀritelmĂ€ on âpatinaâ-sanan kannalta hyvin kontekstisidonnainen ja aina ei ole tĂ€ysin selvÀÀ, mitĂ€ sillĂ€ tarkoitetaan, kun termiĂ€ kĂ€ytetÀÀn julkisivun yhteydessĂ€. Suoritin aiheeseen perehtymisen jĂ€lkeen suppean kvalitatiivisen eli laadullisen tutkimuksen. Haastattelin eri asiantuntijoiden nĂ€kemyksiĂ€ ajan kauneudesta, kestĂ€vyydestĂ€ ja hyödyllisyydestĂ€ julkisivun suhteen. Haastattelut olivat avoimia teemahaastatteluja, jotka oli personoitu haastateltavan tausta huomioiden. Haastattelun tarkoituksena oli synnyttÀÀ keskustelu teemaan liittyen, jotta aiheeseen voisi syventyĂ€ eri nĂ€kökulmista. Tavoitteena oli selvittÀÀ, mistĂ€ on kyse ja mitkĂ€ ovat syyt taustalla, kun olemme eri mieltĂ€ rakennuksen visuaalisesta vanhenemisesta.
Suunnitteleminen on asian hahmottelemista ennalta. Suunnittelijan tÀytyy luottaa nÀkemykseensÀ luomastaan tulevaisuusskenaariosta, mutta hÀnen tulisi samalla vakuuttaa myös muut asianosaiset oikeasta tulevaisuuden suunnasta. Suunnitelmat ovat siis dokumentteja, jotka muun informaation lomassa, esittelevÀt suunnittelijan visiota tulevaisuudesta tietyssÀ ympÀristössÀ. Voisiko nÀitÀ tai muita keinoja kÀyttÀen, hahmottaa rakennuksen vanhentuvaa hahmoa itselle ja myös muille? Tavoitteena ÀÀrimmÀistÀ yksimielisyyttÀ on lÀhes mahdotonta saavuttaa, silloin kun on kyse kauneuskÀsityksistÀ. Ennakoimalla staattisen rakennelman muuttuminen ajassa, demonstroitaisiin ilmiö visuaalisesti. TÀllöin muutkin, kuin suunnittelija itse, voisi luottaa hahmottavansa vision ja sen kestÀvyyden. On syytÀ mainita, ettÀ haastateltavat nÀkivÀt edellÀ mainitun demonstroinnin tarpeellisuuden.
DiplomityötĂ€ on tukenut Julkisivuyhdistys ry ja Kunnallisalan kehittĂ€missÀÀtiö.The metamorphosis of the facade : the value of the changing appearance on a building. Abstract. The thesis examines the metamorphosis of the façade and the value of the changing appearance in time on a building. The text builds up so that fundamentals of the aesthetics are presented at first. As an objective is to comprehend better experiential which strongly concern the temporality of the architecture. After this some aesthetical factions focused on temporality are showcased. The next part considers on what one should pay attention to when planning a façade, façadeâs lifecycle and itâs visuality. In the last part there is case studies about actualized building projects which took concept of aging into account already on a planning level. Ultimately, I present my own outlook on how buildingâs visual aging should be considered in general when drafting a façade.
Why the aging appearance of the building splits opinions?
If we examine the term patina from the point of view of linguistic semantics one could say that besides the denotation the term itself, often it has positive connotation which means that itâs often associated with good properties and values. However, the expression of denotation is significantly limited by its context and itâs not always clear what one means by it when the term is used in relation to façade. After studuying the topic I conducted a small qualitative research. I interviewed views of different experts on beauty, durability and utility of time in the façade context. The interviews were unlimited thematic interviews which were customized for the interviewees by their backgrounds. The purpose of the interview was to create a discussion about the topic so that the topic could be explored from different perspectives. The goal was to figure out why and what are the reasons underlying when we disagree about the visual aging of the building.
Designing is a matter of anticipating the formation. Designer has to be confident about the created future scenario but at the same time designer has to convince other parties of the right orientation for this scenario. Plans are documents that, along with other information, present the vision of the future in a particular environmental context. Could one use these or other means to perceive the outdated character of the building for the designer himself and also for the others? The goal of extreme consensus is almost impossible to achieve when it comes to beauty ideals. By anticipating the change of static structure in time, the phenomenon would be visually demonstrated. Itâs worth mentioning that, interviewees also saw the need for this kind of demonstration.
The masterâs thesis is supported by Finnish Façade Association (Julkisivuyhdistys ry) and Finnish Municipal Development Foundation (Kunnallisalan kehittĂ€missÀÀtiö)
Kinetic analysis of the growth of bone marrow mononuclear phagocytes in long term cultures
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4427.pdf (publisher's version ) (Open Access
Performance of Surgical Stress Index during Sevoflurane-Fentanyl and Isoflurane-Fentanyl Anesthesia
The performance of recently introduced Surgical Stress Index (SSI), based on heart rate and photoplethysmography, was estimated during sevoflurane-fentanyl and isoflurane-fentanyl anesthesia during surgical procedures. Forty ASA IâIII patients were enrolled. Anesthesia was induced with fentanyl 2âÎŒgâkgâ1 and thiopentone 3â5âmgâkgâ1. Tracheal intubation was performed 5 minutes after fentanyl bolus. Patients were randomly allocated to receive sevoflurane (n = 20) or isoflurane (n = 20) in 30% oxygen/air. State entropy was kept at 40â60, target being 50. During surgery, fentanyl boluses 1.5âÎŒgâkgâ1 were given at 30â40-minute intervals. SSI increased significantly after intubation. During surgery, the decrease of SSI after fentanyl boluses was similar in sevoflurane and isoflurane groups but SSI values were higher in sevoflurane than in isoflurane group. Tracheal intubation, skin incision, and surgical stimuli increased SSI from baseline, indicating that nociceptive stimuli increase SSI. Fentanyl boluses during surgery decreased SSI, indicating that increasing analgesia decreases SSI
Observation of defect complexes containing Ga vacancies in GaAsN
Positron annihilation spectroscopy was used to study GaAsN/GaAs epilayers. GaAsN layers were found to contain Ga vacancies in defect complexes. The density of the vacancy complexes increases rapidly to the order of 1018âcmâ3 with increasing N composition and decreases after annealing at 700â°C. The anticorrelation of the vacancy concentration and the integrated photoluminescence intensity suggests that the Ga vacancy complexes act as nonradiative recombination centers.Peer reviewe
Global change synergies and trade-offs between renewable energy and biodiversity
Reliance on fossil fuels is causing unprecedented climate change and is accelerating environmental degradation and global biodiversity loss. Together, climate change and biodiversity loss, if not averted urgently, may inflict severe damage on ecosystem processes, functions and services that support the welfare of modern societies. Increasing renewable energy deployment and expanding the current protected area network represent key solutions to these challenges, but conflicts may arise over the use of limited land for energy production as opposed to biodiversity conservation. Here, we compare recently identified core areas for the expansion of the global protected area network with the renewable energy potential available from land-based solar photovoltaic, wind energy and bioenergy (in the form of Miscanthus 9 giganteus). We show that these energy sources have very different biodiversity impacts and net energy contributions. The extent of risks and opportunities deriving from renewable energy development is highly dependent on the type of renewable source harvested, the restrictions imposed on energy harvest and the region considered, with Central America appearing at particularly high potential risk from renewable energy expansion. Without restrictions on power generation due to factors such as production and transport costs, we show that bioenergy production is a major potential threat to biodiversity, while the potential impact of wind and solar appears smaller than that of bioenergy. However, these differences become reduced when energy potential is restricted by external factors including local energy demand. Overall, we found that areas of opportunity for developing solar and wind energy with little harm to biodiversity could exist in several regions of the world, with the magnitude of potential impact being particularly dependent on restrictions imposed by local energy demand. The evidence provided here helps guide sustainable development of renewable energy and contributes to the targeting of global efforts in climate mitigation and biodiversity conservation
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