• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 7502
  • 5679
  • 2412
  • 1647
  • 1617
  • 506
  • 385
  • 321
  • 267
  • 256
  • 207
  • 157
  • 153
  • 132
  • 127
  • Tagged with
  • 24248
  • 3199
  • 3191
  • 2698
  • 2168
  • 1598
  • 1506
  • 1497
  • 1463
  • 1334
  • 1277
  • 1250
  • 1231
  • 1223
  • 1181
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
361

A survey of pupils' attitudes towards an understanding of mathematics

Pinkrah, Victor Ware January 1989 (has links)
No description available.
362

Working memory and attentional resources in healthy volunteers and Alzheimer patients : evidence from behavioural data and functional neuroimaging

Cocchini, Gianna January 2001 (has links)
Despite the wide literature concerning attentional resources and memory, there is still a debate concerning the cognitive processes involved during multiple tasks. The single attentional resource theory suggests that each individual has a general single pool of attentional resources that can be shared amongst the different concomitant tasks. Dual task demand would result in a decrement in performance as the resources required exceed those available. In contrast the multiple attentional resource theory claims that each individual can draw from different pools of attention and that resources are not sharable: combining two tasks does not necessarily result in a dramatic decrement in performance. From this second theory arises the co-ordination hypothesis which suggests that the central executive may co-ordinate and implement the use of different pools of attention when an individual has to perform two tasks at the same time. In this thesis some aspects and predictions of these theoretical hypotheses are examined. The dual task effect is investigated under the manipulation of cognitive effort (Experiments 1, 3 and 4), practice (Experiment 2) and the combination of different processes (Experiment 6). Moreover, it has been reported in the literature that patients affected by Alzheimer Disease show a dramatic cost of concurrence, but there is still a debate as to whether the performance impairment is due to an impoverishment of the single attentional resource or, alternatively, to an impairment in the co-ordination function. The findings of this thesis provide some support in favour of a co-ordination impairment (Experiments 1,2,3 and 4). Finally the age effect (testing two groups of healthy adults, young and elderly) has been considered to establish whether there is a qualitative or quantitative difference between healthy elderly and Alzheimer patients (Experiments 1,2,3 and 4).
363

Towards a third generation analyst workbench

Griffiths, Gary January 1994 (has links)
No description available.
364

Application of parallel processing techniques to routing for VLSI design

Sagar, V. K. January 1990 (has links)
No description available.
365

The detection of contours and their visual motion

Spacek, L. A. January 1985 (has links)
No description available.
366

The removal of volatile alkali salt vapours from hot coal-derived gases

McLaughlin, John January 1990 (has links)
No description available.
367

The steam drive process in enhanced oil recovery

Mokhber, A. R. January 1986 (has links)
No description available.
368

Return process Development at Siemens Industrial Turbomachinery AB

Dahlquist, Henrik, Ahlbert, Mattias January 2014 (has links)
Siemens Industrial Turbomachinery AB (SIT) manufactures gas turbines, conducts service and develop gas and steam gas turbines. The organization is located in Finspång and in Trollhättan with customers positioned all over the world. During later years the service operation has grown in volume significantly, and at the moment the organization returns number of parts for repair and recondition every year. During maintenance of a Customer turbine SIT uses both tools and instruments that when the maintenance is completed are returned to SIT in Finspång. The master thesis has studied the return processes for Siemens Industrial Turbomachinery AB for goods from the Customer site to Siemens Industrial Turbomachinery in Finspång and Trollhättan. The return processes can be divided into three main types: Planned Maintenance, Unplanned Maintenance and Tools and Instruments. The return processes and their adjacent processes have been mapped up in order to receive a picture over the present situation. The study has also summarized the demands from the processes before, during and after the return process. From the summarized demands, 26 actions have been formed that are directed at the return process. The actions have been prioritized and discussed during two seminars with personal with knowledge about the return process from different departments at Siemens. The prioritization and the authors’ own knowledge about the return process have resulted in suggestions for how Siemens Industrial Turbomachinery shall focus their work of improvement. The suggestions have been divided up into three steps so Siemens shall focus on the right action in the right order during the work of improvement. The actions include better communication, a reduced variation, correct hand over between processes and sub processes, change in work routines and an idea regarding necessary information for the process to be able to improve. One of the most important areas is that Siemens need to improve the basic data to be able to manage the returns when the maintenance of the customer turbine is planned. Siemens also needs to be able to carry out information regarding the return to the personal at customer site in a better way. The study has also examined how an internal measurement system would improve the return process. Of 22 measure points the study has suggested 6 measure points to be implemented in the return process that would help Siemens to better control their return process, make it easier to improve and to be able to make conclusions regarding future changes. / Siemens Industrial Turbomachinery AB (SIT) tillverkar gasturbiner och bedriver service av både gas och ångturbiner. Verksamheten har man belägen i Finspång och Trollhättan och kunderna finns belägna i hela världen. Under senare år har Siemens Industrial Turbomachinery AB serviceverksamhet vuxit kraftigt och i dag returnerar företaget en stor mängd delar för reparation och rekonditionering. Vid ett underhåll på kundens turbin används både verktyg och instrument som hyrs ut till underhåll över hela värden och när underhållet är klart ska de returneras till Siemens Industrial Turbomachinery AB i Finspång. Examensarbetet har studerat Siemens Industrial Turbomachinery ABs returprocesser för gods från kundens plats till Siemens Industrial Turbomachinery ABs i Finspång och Trollhättan. Returprocesserna kan delas in i tre huvud typer: Planerade delar, Oplanerade delar och Verktyg och Instrument. Returprocesserna och dess angränsade processer har kartlagts för att få en bild av nuläget, arbetet har även sammanställt kraven utifrån processerna före, under och efter returprocessen. Utifrån kravbilden har 26 åtgärder tagits fram som berör returprocesserna. Åtgärderna har prioriterats och diskuterats på två seminarier med Siemens personal från flera olika avdelningar som hanterar returer. Prioriteringen samt författarnas egen förståelse för processerna har utmynnat i ett förslag till hur Siemens ska gå till väga för att förbättra returprocesserna. Förslagen har då delats in i tre steg för att Siemens ska kunna fokusera på rätt sak i rätt ordning under förändringsarbetets gång. Åtgärderna behandlar bättre kommunikation, minskad variation i utfallet av processerna, korrekta överlämningar mellan processer och delprocesser, förändringar i arbetsrutiner och vilken information som krävs för att processerna ska fungera bättre. Ett av de viktigaste områdena är att Siemens måste förbättra underlaget för returerna när de planerar ett underhåll för kundens turbin. Siemens måste även bli bättre att föra ut information om returen till deras personal på plats hos kund. Studien har även undersökt hur ett internt mätsystem skulle förbättra processen. Av 22 mätpunkter har studien visat att 6 mätpunkter är intressanta för returprocesserna, de skulle hjälpa Siemens att skaffa kontroll på processen, styra mot förbättringar och kunna dra slutsatser om framtida förändringar.
369

An exploratory study on the planning and design of a future e-voting system for South Africa

Masuku, Wiseman Khethokwakhe January 2006 (has links)
This study focuses on the future role and nature of an e-voting system for a future electoral system in South Africa. The study is of the view that rapid technological advancement and opportunities may contribute to efficient and effective e-voting systems. The study will investigate the international experience where initiatives have been undertaken, particularly in countries like the USA, the Netherlands, India, and Nigeria. Lessons born out of experience have been identified to highlight best practice and potential problems to be avoided in our future elections. As an outcome, the study indirectly seeks ways to increase turnout, particularly amongst the youth, increase voting access (everywhere and anytime), cost effectiveness and availability of quick national election results. The primary objective of this study has been to develop future options for the planning and design of an e-voting for South Africa. From the outset of this research, the critical issue was not only about e-voting, but rather the planning and designing of an e-voting system. Suffice it to say that the central issue about e-voting was not whether electronic voting should be developed but how and in what ways it should be designed and planned for successful implementation. Interestingly enough, this question has been bothering the IEC as well, particularly pertaining to planning (see 1.5.3). In a nutshell, it is against this background that experts on elections were interviewed. The research investigation found that many problems still existed in South African elections. This research found that both participation and communication are the main pillars in any policy or project. The study revealed that e-voting would appeal to younger voters and will subsequently boost turnout in SA. In a nutshell, this study found that members of the public and election experts were in favor of telephone voting and SMS, Internet voting, and EVMs. However, it was noted that rural communities would benefit in the long run from e-voting because they are still faced with an infrastructure backlog. Proper planning supported by sound planning principles need to be done to ensure that a e-voting in SA will be made successful and specific recommendations were made in this regard. / Magister Administrationis - MAdmin
370

Elever med hörselnedsättning och övergången mellan skola och arbetsliv : En kvalitativ forskningsstudie kring studie- och yrkesvägledarens roll

Jägerskog, Josefine January 2014 (has links)
Studien behandlar studie- och yrkesvägledning till elever på Riksgymnasiet för döva och hörselskadade, där elevgruppen med hörselnedsättning studeras. Ungas övergångar från gymnasiet är extra komplex för denna grupp och de riskerar i större omfattning att hamna i arbetslöshet och utanförskap i samhället. Syftet med studien var att belysa hur studie- och yrkesvägledning kan arbeta med stöd i deras karriärutveckling och förklara hur vägledningsprocessen ser ut och på vilket sätt studie- och yrkesvägledning kan stärka eleverna individuellt. Detta gjordes genom kvalitativa intervjuer av studie- och yrkesvägledare som arbetade/har arbetat på Riksgymnasiet för döva och hörselskadade. Studiens resultat visade att elevernas hörselnedsättning har betydelse inför kommande studie- och arbetsliv. Kunskapsbrist och lågt själförtroende var vanligt förekommande hos denna elevgrupp. Samtliga studie- och yrkesvägledare arbetade extra stödjande och samverkade med andra aktörer för att visa på alternativa karriärvägar. Slutsatsen blev att elever med hörselnedsättning ges omfattande stödinsatser och mer tid för enskilda vägledningssamtal. Detta bidrar till elevernas process och förberedelser inför studie- och arbetsliv.

Page generated in 0.2815 seconds