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  • 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.
21

The effects of positive and aversive tangible and intangible reinforcing stimuli, and awareness of the contingency on the conditioning hostile verbs in a verbal conditioning study.

Fantinel, Lee Ramon. January 1976 (has links) (PDF)
Thesis (B.A. Hons. 1977) from the Department of Psychology, University of Adelaide.
22

The effects of pre-TO stimuli on D.R.L. responding of human subjects /

Mitchell, George Desmond. January 1975 (has links) (PDF)
Thesis (B.A. Hons. 1976) from the Department of Psychology, University of Adelaide.
23

The effects of noncontingent food on maintained operant responding and extinction /

Géczy, István January 1992 (has links)
For experiments investigated the effect of adding noncontingent (free) food to an operant contingency during random ratio (RR) and random interval (RI) training and during extinction in rats. Free food was presented during extinction of RI responding in Experiments 1 and 2. Noncontigent food retarded response loss compared to a signaled free food group (Experiments 1 and 2) which declined less rapidly than a control group of no free food (Experiment 1). Free food was presented while the instrumental reinforcement RR and RI probabilities remained unchanged in Experiments and 3 and 4. In contrast to Experiments 1 and 2, added noncontingent food facilitated response loss compared to a signaled condition and to a control group of no added free food which responded most (Experiment 3). Removing all food caused most recovery in the free food group, less in the signaled condition and least in the control group (Experiments 1 and 3). A generalization decrement hypothesis of the free food effect was offered to explain these apparently paradoxical results.
24

Thermodynamic and electrical performance monitoring of a domestic split-type air conditioner and development of a simulation based R22 permanent replacement

Bantan, Mafor Glory January 2017 (has links)
The difficulty that exists in accurately monitoring the performance of air conditioners has made performance prediction an arduous task. Nevertheless, the performance still needs to be monitored and predicted as it helps solve a lot of problems resulting from this technology like effect of the technology on the grid, energy consumption, water utilisation and GHGs emission. With the introduction of regression modelling as a means of system monitoring and prediction some years ago, the accuracy was still a call for concern. It is worth realising that increasing the number of predictors will enhance this method’s accuracy. As such, this document intends to increase the accuracy of this method’s monitoring and predicting ability by increasing the number of predictors to cut across system thermal, environmental and human behavioural variation. These predictors experimentally gotten are used to build an environ-behavioural model that monitors the coefficient of performance and energy consumption of a domestic split-type air conditioner with higher accuracy. Refrigerants have undergone evolution in the past decades in a bid to come up with a refrigerant that has zero ODP, lower – than – R22 GWP and much better than R22 thermodynamic performance. No pure refrigerant has been found to possess these qualities as such mixtures or blends are the best shot at the moment. R410A could stand the test of time to be the long term R22 replacement but for the fact that besides R410A’s higher GWP than that of R22, the former’s system performance is lower than that of the latter’s due to the lower thermodynamic performance of the former. This means the search continues. In this document, a combination of carefully chosen refrigerant components are carefully blended to come up with a simulation based R22 long term replacement, which will be referred to in this document as BTEP.
25

Precooling strategies for passenger vehicles

Wachsmuth, Carsten Ulrich Harro January 2009 (has links)
By ventilating the vehicle’s interior during a soak, the peak cooling load is reduced and therefore the air-conditioning needs less power. This in turn translates to a smaller air-conditioning unit which would consume less power, be lighter and more compact. This solar driven ventilation of the vehicle’s interior during a soak is defined as precooling. During this project the best precooling strategy for passenger vehicles was found by investigating and testing different precooling strategies and evaluating them according to their thermodynamic performance, their potential implementation and their influence on the required cooling performance of the airconditioning cycle. The best performances were achieved by strategies with a high air flow rate and a relatively low air inlet temperature. Two categories of precooling strategies were examined: natural convection and forced convection strategies. Openings in the vehicle’s body that fit to all strategies had to be found; with a big potential concerning their thermodynamic performance and other aspects like prevention against water penetration. The best investigated precooling strategies proved to be the one which used the design outlet as an inlet and the opening of the HVAC as an outlet. With these openings a good air flow through the whole cabin can be guaranteed. In addition to that the strategy only uses existing openings of the body which prevent against water penetration. The required installation space for this strategy already exists and can be considered for the package of next generation vehicles.
26

Cerebellar control of classical conditioning

Ivarsson, Magnus. January 1998 (has links)
Thesis (doctoral)--Lund University, 1998. / Added t.p. with thesis statement inserted. Includes bibliographical references.
27

International market selection in Asia Pacific Region : air conditioning service industry /

Ting, Tsan-kau, Chris. January 1997 (has links)
Thesis (M.B.A.)--University of Hong Kong, 1998. / Includes bibliographical references (leaves 75-76).
28

Cerebellar control of classical conditioning

Ivarsson, Magnus. January 1998 (has links)
Thesis (doctoral)--Lund University, 1998. / Added t.p. with thesis statement inserted. Includes bibliographical references.
29

An alternative approach to the design of environmental control systems /

Gayen, S January 1984 (has links) (PDF)
Thesis (M. Eng. Sc.)--University of Adelaide, 1984. / Includes bibliographical references (leaves [104-105]).
30

Heat recovery in an air conditioning system /

Ma, Kang-ching, Clement. January 1982 (has links)
Thesis (M. Sc.)--University of Hong Kong, 1982.

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