Search results for "batten"
showing 10 items of 13 documents
Strength and ductility of R.C. columns strengthened with steel angles and battens
2012
Abstract In this paper the behaviour of R.C. members externally strengthened with steel angles and battens subjected to axial force and bending moment is analysed. A fibre model was utilised to predict the moment–curvature diagrams of the strengthened members on the basis of stress–strain curves of the constituent materials (confined concrete, steel bars and angles) recently derived by the author. The stress–strain curves utilised for compressed concrete were able to take into account the confinement effects induced by longitudinal (bars and steel angles) and transverse (stirrups and battens) steel reinforcements. Constitutive laws in compression for confined concrete and steel bars and ang…
R/C columns strengthened by means of steel angles and battens: testing, modeling and design
2010
The 8th International Congress on Neuronal Ceroid Lipofuscinoses (Batten Disease) ‐ NCL 2000 20 ‐ 24 September, 2000 Oxford, United Kingdom
2006
Dementia in the Neuronal Ceroidlipofuscinoses
2001
Dementia is defined as a decline in cognitive abilities such as impairment of memory, reasoning, behaviour, attention, motivation and effectiveness. The term usually implies that normal mature mental capability was achieved before, and it is therefore mostly ascribed to adult patients.
Human NCL Neuropathology
2015
AbstractThe neuronal ceroid lipofuscinoses (NCL) currently encompass fourteen genetically different forms, CLN1 to CLN14, but are all morphologically marked by loss of nerve cells, particularly in the cerebral and cerebellar cortices, and the cerebral and extracerebral formation of lipopigments. These lipopigments show distinct ultrastructural patterns, i.e., granular, curvilinear/rectilinear and fingerprint profiles. They contain−although to a different degree among the different CLN forms−subunit C of ATP synthase, saposins A and D, and beta-amyloid proteins. Extracerebral pathology, apart from lipopigment formation, which provides diagnostic information, is scant or non-existent. The ret…
Flexural response of external R.C. beam-column joints externally strengthened with steel cages
2015
Abstract An experimental and theoretical research referred to the flexural behavior of external R.C. joints strengthened with steel cages constituted by steel angles and battens is presented. The subassemblage (beam, column and joint) was subjected to a constant vertical load acting on the column and to a monotonically increasing lateral force applied at the tip of the beam. The control specimen is without strengthening system and it was designed with weak column and strong beam and overstrength in the joint region. Strengthening cases here studied refer to steel caging in the column and both in the beam and in the column. Cyclic response in term of load–displacement curves, crack patterns …
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. …
Under samma tak : en fallstudie utifrån lärares erfarenheter av de samlokaliserade skolorna i Österbotten
2016
Tämän tutkielman tavoitteena on kartoittaa opettajien kokemuksia syksyllä 2013 yhteenmuuttaneiden suomen- ja ruotsinkielisten lukioiden yhteiselosta. Tarkoituksena on selvittää miten opettajat suhtautuvat koulujen yhteenmuuttoon sekä mitä mahdollisuuksia ja haasteita he näkevät siinä, että lukiot toimivat samoissa tiloissa. Lisäksi selvitetään ilmeneekö koulujen välillä jonkinasteista yhteistyötä, ja miltä oppilaskieliryhmien välinen kanssakäyminen vaikuttaa opettajien näkökulmasta. Kyseessä on laadullinen tapaustutkimus, jonka tarkoituksena ei ole yleistää saatuja tutkimustuloksia vaan lisätä ymmärrystä ajankohtaisen ilmiön ympärillä. Tutkimusmateriaali pohjautuu elektroniseen kyselyyn, jo…
The neuronal ceroid-lipofuscinoses: A historical introduction
2013
AbstractThe neuronal ceroid-lipofuscinoses (Batten disease) collectively constitute one of the most common groups of inherited childhood onset neurodegenerative disorders, and have also been identified in many domestic and laboratory animals. The group of human neuronal ceroid-lipofuscinoses currently comprises 14 genetically distinct disorders, mostly characterised by progressive mental, motor and visual deterioration with onset in childhood or adolescence. Abnormal autofluorescent, electron-dense granules accumulate in the cytoplasm of nerve cells, and this storage process is associated with selective destruction and loss of neurons in the brain and retina. The present paper outlines near…