published_or_final_version / Real Estate and Construction / Master / Master of Science in Construction Project Management

In the last fifty years, process improvements in service and product based organizations have greatly improvement quality, decreased development time and reduced scrap by improving process efficiency. Terms such as Lean Engineering, Just in Time, Total Quality Management and certifications such as ISO 9000 have become commonplace. In support of these process improvements, Engineering Data Management is a toolkit for achieving a truly integrated environment within a technical business by allowing teams to work more closely together, improving speed and efficiencies within the organization. This report was created to introduce the reader to basic principles of EDM and how it can improve an organization’s ability to compete. / text

The research reported in this thesis is focused on the creation of a CAE system to support Reverse Engineering. It is centred around the computational representation of products (Product Model) and manufacturing capabilities (Manufacturing Model). These models are essential for modem and future software systems aimed to assist the design process, enabling data sharing among the participants who use various computational tools. Reverse Engineering is employed as a particular context and motivation for exploring the application of the models. The research builds on the achievements of the recently finished Model Oriented Simultaneous Engineering System (MOSES) project, undertaken jointly by Leeds University and the Department of Manufacturing Engineering of Loughborough University. MOSES' work on information modelling was analysed and combined together with the original proposals of the author to elaborate a suitable support to Reverse Engineering, applicable to redesign in general. A process for Reverse Engineering is proposed and documented and a data model driven CAE system to support it is specified. The CAE system includes a Product Model, a Manufacturing Model and two software application environments. The Product Model of the system is based on the information requirements of the Reverse Engineering process and is suitable for representing multi-component products, from different perspectives through its life cycle. The applications assist the characteristic activities of Reverse Engineering. In particular, the system is used for exploring the application of Product and Manufacturing Models in supporting Design for Manufacture. The theoretical research is tested by the use of a case study which explores the Reverse Engineering of a component. This work is supported by a prototype software instance of the CAE system. The case study component is an axle which forms part of a product designed and manufactured by a collaborating company.

This PhD project aims to develop a cost modelling system to support lean product and process development. The system enables the designers to assess the design along with associated manufacturing processes and provides decision support at an early development stage. Design assessment at early development stage can help designers to take proactive decisions, eliminate mistakes and enhance product value. The developed cost modelling system to support lean product and process development incorporates three lean product and process development enablers, namely set-based concurrent engineering, knowledge-based engineering, and mistake-proofing (poka-yoke). To facilitate above explained lean enablers, the system architecture contains six modules, six separate groups of database, a CAD modelling system, and a user interface. The system modules are: (i) value identification; (ii) manufacturing process/machines selection; (iii) material selection; (iv) geometric features specification; (v) geometric features and manufacturability assessment; and (vi) manufacturing time and cost estimation. The group of database includes: (i) geometric features database, (ii) material database, (iii) machine database, (iv) geometric features assessment database, (v) manufacturability assessment database, and (vi) previous projects cost database. A number of activities have been accomplished to develop the cost modelling system. Firstly, an extensive literature review related to cost estimation, and lean product and process development was performed. Secondly, a field study in European industry and a case study analysis were carried out to identify current industrial practices and challenges. Thirdly, a cost modelling system to support lean product and process development was developed. Finally, validation of the system was carried out using real life industrial case studies. The system provides a number of benefits, as it enables designers to incorporate lean thinking in cost estimation. It takes into consideration downstream manufacturable process information at an early upstream stage of the design and as a result the designer performs the process concurrently and makes decisions quickly. Moreover, the system helps to avoid mistakes during product features design, material and manufacturing process selection, and process parameters generation; hence it guides toward a mistake-proof product development. The main feature of the system, in addition to manufacturing cost estimation, is set-based concurrent engineering support; because the system provides a number of design values for alternative design concepts to identify the feasible design region. The major contribution of the developed system is the identification and incorporation of three major lean product and process development enablers, namely set-based concurrent engineering, knowledge-based engineering and poka-yoke (mistake-proofing) in the cost modelling system. A quantification method has been proposed to eliminate the weaker solution among several alternatives; therefore only the feasible or strong solution is selected. In addition, a new cost estimation process to support lean product and process development has been developed which assists above explained three lean product and process development enablers.

The purpose of this experiment was to evaluate the effects of alternative contingencies on instruction following by an ABA design. Three college students consistently pressed keys 1-5-3 and 4-8-6 in the presence of the written instruction "Press 153" or "Press 486." During condition A, the contingencies for following and not following the instruction were the same: CON FR5 FR5 and CON FR20 FR20. During condition B, the contingencies for following and not following the instruction were different: CON FR20 FR5. For one participant, the schedule of reinforcement was then changed to FR30. The results showed that subjects followed instructions when the schedule of reinforcement was the same for instruction following and not following.

Aim Aerobic exercise may interfere with subsequent responses to strength training. The aim of this research was to examine the acute effects of cycling or running on subsequent leg strength performance. It was hypothesized that eccentric contractions induced by running would impair strength performance more than the cycling mode of exercise, which consist mainly of concentric muscle actions. Method In order to investigate if continuous running or cycling affected following strength performance, 6 healthy individuals (5 males, 1 female) were subjected to a randomized cross-over design. Subject characteristics were age (year) 25,5 ± 2,1, height (cm) 180,5 ± 6,4, and body weight (kg) 83 ± 3,4. The experimental sessions included three protocols: strength protocol (S) which included 3 repetitions measuring peak power followed by 3 sets to muscular failure at 80% of 1RM in the squat exercise; and continuous running (RS) and cycling (CS) conditions (40 minutes at 80% of maximal heart rate), followed by the S protocol. Peak power performance and total work volume was measured. Results Average peak power attained between the three protocols were CS = 1639± 444Watts (W), RS = 1633± 422 and S = 1565 ± 349. No significant differences were observed between the three conditions (P = 0,817). No differences across the three protocols was observed for highest peak power attained by each subject (P = 0,619). Total work volume performed (main effect P = 0,027) revealed a significant difference between CS = 2559 kg and S = 3715 kg (P=0,037), and CS and RS = 3345 kg (P=0,037) due to the lower loads lifted in CS.  Conclusions There were no differences observed between the three training protocols regarding peak power performance. When cycling exercise was performed prior to the strength session, the total volume lifted was lower than when performing the strength test alone. Thus, it is concluded that cycling exercise, but not running, interferes with subsequent strength training performance. / Syfte och frågeställningar Uthållighetsträning kan leda till försämrad styrkeprestation. Syftet med denna forskning var att undersöka de akuta effekterna från cykling eller löpning på efterföljande benstyrka. Hypotesen var att löpning, som omfattar excentriska muskelaktioner, skulle leda till en större försämring av efterföljande styrkeprestation jämfört med cyking, som främst omfattar koncentriska muskelaktioner. Metod För att undersöka om kontinuerlig cykling och löpning påverkade efterföljande benprestation, undersöktes 6 deltagare (5 män, 1 kvinna) i en randomiserad cross-over design. Försökspersonernas karakteristika var ålder (år) 25,5 ± 2,1, längd (cm) 180,5 ± 6,4, vikt (kg) 83 ± 3,4. Försökspersonerna utförde tre experimentella protokoll: styrka (S), vilket bestod av 3 repetitioner av maximal kraftutveckling efterföljt av 3 set till muskulär utmattning på 80% av 1RM i benböj; och löpning (RS) samt cykling (CS) protokoll (40-minuter på 80% av maximal hjärtfrekvens), efterföljt av S protokollet. Data för maximal kraftutveckling och total arbetsvolym samlades in.  Resultat Den genomsnittliga maximala effekten som uppnåddes mellan de tre protokollen var: CS = 1639 ± 444 Watt (W), RS = 1633 ± 422W och S = 1565 ± 349W. Inga signifikanta skillnader observerades mellan de tre förhållandena (P=0,817). Högst uppnådda effekten för varje deltagare mellan de tre förhållandena visade ingen skillnad (P=0,619). Totala arbetsvolymen (tidseffekt: P=0,027) visade signifikanta skillnader mellan CS = 2559 kg och S = 3715 kg (P=0,037), och CS och RS = 3345 kg (P=0,037) på grund av lägre vikt lyft vid CS. Slutsats Ingen skillnad observerades mellan de tre förhållandena angående maximal styrkeprestation. Den totala vikt volymen som kunde lyftas var dock lägre när cykling utfördes innan styrketestet. Slutsatsen är därför att cykling, men inte löpning, hindrar maximal träningsprestation vid ett efterföljande styrkepass.

The purpose of this study was to observe the differences in English achievement, critical-thinking ability, and attitude toward subject attributable to two scheduling approaches -- "Concurrent" and "Intensive"--in the teaching of first-semester freshman English composition to community college students. Further, the study was initiated in order to provide factual information as a basis for administrative and instructional judgments affecting future planning for accelerated scheduling at the experimental institution. Two classes of first-semester freshman English composition, meeting three hours weekly for fifteen weeks, comprised the control group (Concurrent); two classes of first-semester freshman English composition, meeting nine hours weekly for five weeks, comprised the experimental group (Intensive). The same form of three criterion instruments was administered to both groups before and after the experimental treatment. The instruments were the Cooperative English Expression Test, the Watson-Glaser Critical Thinking Appraisal, and the Purdue Attitude Scale, Part A -- Attitude Toward Any Subject. Three instructors were involved in the experiment during the fall and spring semesters of the 1973-74 school year. Conventional methods of instruction, using the same course of study, were duplicated in all situations. Statistical analyses utilized in the study were analysis of covariance and multiple linear regression. It was felt that Intensive scheduling was superior to Concurrent as a means of promoting student-faculty harmony. Also, the frustrations experienced within the traditional classroom situation could be lessened by granting greater freedom from the constraints of hourly schedules and competing classes. With tensions reduced, English proficiency could be increased. Acting upon these suppositions, three hypotheses--related to each of the criterion measures-- were formulated. All hypotheses stated that the adjusted post-test scores for the experimental groups would be significantly greater than the adjusted post-test scores for the control groups. The results of the experiment, however, showed no significant difference for any of the hypotheses at the . 05 level of confidence; thus, all were rejected. Within the limitations of this study, it was evident that any difference in the effectiveness of the two scheduling approaches for first-semester freshman composition was negligible. But of significance was the observation that a quality instructional program could be effectively adapted to scheduling variations. In general, the successful implementation of any such variation was dependent upon careful course planning and widespread publicity. Furthermore, attitudes toward a subject did not seem to be materially altered as a result of differences in scheduling format. Pertinent to the improvement of the English discipline, the study revealed a strong correlation between critical-thinking ability and skill in English expression. It appeared, however, that class attendance was more important in the improvement of English skill--especially in accelerated classes--than it was in the improvement of critical-thinking ability. In conclusion, the possibilities of an expanded academic program should be fully investigated as a scheduling option for the community college. In this connection, continuing research should examine the effects of various combinations of grouping plans upon learning. Related goals and objectives should be formulated and program particulars transmitted to students. Available data, defining the type of student most likely to benefit from scheduling options, should be utilized in an effort to create a more favorable total situation.

Models of true concurrency have gained a lot of interest over the last decades as models of concurrent or distributed systems which avoid the well-known problem of state space explosion of the interleaving models. In this thesis, we study such models from two perspectives. Firstly, we study the relation between Petri nets and stable event structures. Petri nets can be considered as one of the most general and perhaps wide-spread models of true concurrency. Event structures on the other hand, are simpler models of true concurrency with explicit causality and conflict relations. Stable event structures expand the class of event structures by allowing events to be enabled in more than one way. While the relation between Petri nets and event structures is well understood, the relation between Petri nets and stable event structures has not been studied explicitly. We define a new and more compact unfoldings of safe Petri nets which is directly translatable to stable event structures. In addition, the notion of complete finite prefix is defined for compact unfoldings, making the existing model checking algorithms applicable to them. We present algorithms for constructing the compact unfoldings and their complete finite prefix. Secondly, we study probabilistic models of true concurrency. We extend the definition of probabilistic event structures as defined by Abbes and Benveniste to a newly defined class of stable event structures, namely, jump-free stable event structures arising from Petri nets (characterised and referred to as net-driven). This requires defining the fundamental concept of branching cells in probabilistic event structures, for jump-free net-driven stable event structures, and by proving the existence of an isomorphism among the branching cells of these systems, we show that the latter benefit from the related results of the former models. We then move on to defining a probabilistic logic over probabilistic event structures (PESL). To our best knowledge, this is the first probabilistic logic of true concurrency. We show examples of expressivity achieved by PESL, which in particular include properties related to synchronisation in the system. This is followed by the model checking algorithm for PESL for finite event structures. Finally, we present a logic over stable event structures (SEL) along with an account of its expressivity and its model checking algorithm for finite stable event structures.

Companies increasingly believe that sponsorship, and in particular sport sponsorship, can help them achieve their respective strategic objectives. Achieving sales objectives are especially important in the context of sport sponsorship, given that managers are under increasing pressure to justify their sponsorship expenditure, and that over two-thirds of all sponsorships are directed towards sports properties. However, isolating a sponsorship s contribution to a company s sales figures is difficult to accomplish, and even if this were possible, understanding the mechanisms behind consumers behavioural responses to that respective sponsorship would still constitute a challenge. Hence, understanding consumers behavioural purchase intentions, and what drives these intentions within sponsorship contexts, is of paramount importance. That said, little is known about what drives consumers purchase intentions in sponsorship settings. A greater understanding of consumers behavioural intentions within concurrent sponsorship settings is necessary. Concurrent sponsorships involve multiple brands sponsoring a property at the same time. As such, they are a more realistic and common sponsorship context than simple sponsor-sponsee dyads are. It is important to examine concurrent sponsorships because a collective is formed when multiple sponsors are involved. In turn, social psychology highlights that a collective is characterised by the degree to which its a priori members are perceived as a group. Groups are perceived qualitatively differently to dyads, and can also be perceived differently to the sum of their respective constituent parts. Moreover, the extent to which people perceive a collective as a group can impact upon their subsequent evaluations of that group and that group s actions. Consequently, consumers evaluations of a sponsee s concurrent sponsors and the sponsee itself may be affected by how concurrent sponsorships are perceived, which in turn may affect consumers behavioural intentions. Hence, it is imperative that concurrent sponsorship contexts are investigated. That said, there is scant literature investigating concurrent sponsorships, with sponsorship research historically focussing on sponsor-sponsee dyadic settings. This thesis contributes to our understanding of concurrent sponsorship settings of major sporting events by examining how people s perceptions of concurrent sponsors entitativity influence both their purchase intentions towards a focal concurrent sponsor and their sponsee equity evaluations. An online questionnaire, utilising sponsorship vignettes (scenarios) as part of a factorial survey design, was sent to respondents of a mid-sized UK-based university. Scenarios were used to manipulate respondents into perceiving two concurrent sponsorship settings: a concurrent official providers sponsorship setting and a concurrent official financers sponsorship setting. Hypotheses were tested through Lisrel 8.71 where confirmatory factor analysis (CFA) and structural equation modelling (SEM) were performed. The results in both sponsorship contexts (concurrent official providers and concurrent official financers ) appear to be very similar. Specifically, the results suggest that people s entitativity perceptions are positively related to their sponsee equity evaluations, which in turn are positively associated with people s purchase intentions. Entitativity is also positively associated with consumers intentions to purchase from a concurrent sponsor but only when consumers attribute high levels of sincerity towards that sponsor. The one significant difference between the two sponsorship types (official providers and official financers) in the study concerns how sincerity affects the entitativity-sponsee equity relationship. People s attributions of sincerity moderate the relationship between entitativity and sponsee equity in the official provider concurrent sponsorship context, such that the entitativity-sponsee equity relationship becomes stronger. However, people s attributions of sponsor sincerity do not affect the entitativity-sponsee equity relationship in the official financer concurrent sponsorship context. A post-hoc examination of repondents entitativity ratings also suggests people perceive official providers as being significantly more entitative than they do official financers. This study makes a number of contributions to both theory and management practice. For example, the study demonstrates how the entitativity concept, found within social psychology, can be applied to concurrent sponsorship settings, such that people s behavioural intentions towards a sponsee and a concurrent sponsor, are influenced by their concurrent sponsor entitativity perceptions. Following this, concurrent sponsors and sponsee rights holders should consider how sponsors can foster people s entitativity perceptions whilst at the same time communicate sincere motives for their respective sponsee sponsorships, as sincerity perceptions are important too. This would not only help the sponsee s rights holder by increasing sponsee equity but the results also suggest that people are more likely to purchase from a concurrent sponsor. That said, this may lead to further difficulties between sponsors and sponsees rights holders. For example, sponsees rights holders may be perceived as needing sponsorships as opposed to being able to command them, which in turn could lead to difficult sponsorship negotiations between rights holders and potential sponsors. Second, the business and marketing acumens of sponsees rights holders are generally regarded to be lower than that of sponsors . In fact, sponsors often act independently of sponsees rights holders when making sponsorship leveraging decisions and investments, and this is partly because sponsees rights holders are not proactive enough in working with the sponsors. Therefore, if sponsees rights holders do not have the capabilities to help sponsors foster entitative and sincere sponsorship contexts, sponsors may be unwilling to renew their sponsorship deals or even set up their own events.

Youth traumatized by natural disasters report high levels of posttraumatic stress as well as other types of impairing emotional distress symptoms (e.g., anxiety and depression) for many years post-trauma. Implementing school based screening and treatment programs for these youth eliminates barriers to traditional treatment settings and may provide symptom relief. The current study examines the feasibility of conducting school-based trauma-focused treatment program in the wake of disaster. Idiographic evaluation of the treatment process is incorporated into the treatment evaluation through use of multiple baseline design. Youth reporting at least severe levels of posttraumatic stress on the PTSD-RI were recruited for an expanded assessment and treatment (youth ages 8-13; N=6). Treatment (i.e., the StArT program) consisted of 10-weekly individual sessions during which different cognitive behavioral components were introduced. Youth were assessed at pre-treatment, weekly during treatment, and at post-treatment. Quantitative and qualitative findings relative to youth responses to intervention are presented and discussed in terms of the feasibility of conducting treatment in school settings and in terms of individual difference factors contributing to treatment responses. Findings from this study suggest the feasibility of school based interventions through the aid of school counselors and integration of treatment sessions into the school schedule. Youth responses to the intervention were very positive, point toward the efficacy of a disaster trauma focused cognitive behavioral therapy (the StArT program), and help to highlight particularly useful modules in youth.