Purpose: The construction sector has for many years been criticized for being ineffective, non-competitive and being expensive. Swedish construction firms needs to work with their experience feedback systems. But unfortunately it lacks tradition and experiences with this kind of work with experience feedback. Work in the construction sector usually is defined as craftmanship. Which means that errors are corrected as quickly as possible without understanding and analyzing the underlying causes of the errors and thus be able to control their production processes. The purpose of this study is to bring foward a theoretical model over information flows that could increase the efficiency of the experience feedback between construction projects. Method: The study’s approach was through a qualitative case study. Qualitative case study was chosen due to the need of a thorough analysis of the problem. The report’s theoretical framework is produced from a literature study which focused on experience feedback, knowledge management, incentives and motivation. The empirical accumulation consisted of six interviews conducted by the type of semi-structured and a document analysis. Findings: In the current situation oral feedback is the most common experience feedback from the construction site. Systems regarding experience feedback is not used due to lack of knowledge of the systems and information about how the work with experience feedback should be done is non-existent. Work with experience feedback does not take place continuously during the project and does not have any shall batch. There is no structure, responsibilities and guidelines regarding how the work with experience feedback should be done. This leads to uncertainty among service men concerning the definition of experience feedback. Due to that no information has been released to service men about how the systems works or what’s in the systems motivation to work with the experience feedback systems are failing. Implications: The conclusions of this report is that a knowledge bank should be made available to all service men within the company, from the knowledge bank experiences are reported in and out. During the project continuosly work should be done regarding experience feedback through meetings and at each construction site a responsible person should handle the reporting of experiences. There should be clear structures and guidelines of what the work with experience feedback includes. A responsible person should be handling the knowledge bank and ensure that only relevant information stores in the knowledge bank. Limitations: The report concerns incentive and motivation which is applicable in any organization, this promotes a generally valid result for the case study. The report delimitates from all database structures which are considered as positive due to the time it takes to analyze and make these structures. This would have indirectly been taking time from the analysis of the experience feedback systems and would make the study’s result less credible. / Syfte: Byggsektorn har under många år fått utstå kritik för att vara ineffektiv, konkurrensfattig samt ha en hög prissättning. Svenska byggentreprenader behöver därför jobba med sina erfarenhetssystem men tyvärr saknas traditionen och även erfarenheten med att arbeta med detta. Arbetet inom byggbranschen brukar kallas hantverkskunnande. Vilket innebär att fel rättas till så snabbt som möjligt utan att förstå och analysera de bakomliggande orsakerna till felen och på så sätt kunna styra sina produktionsprocesser. Målet med studien är att framställa en teoretisk modell över informationsflöden som skulle kunna effektivisera erfarenhetsåterföringen mellan byggprojekt. Metod: Studiens angreppssätt var genom en kvalitativ fallstudie. Kvalitativ fallstudie valdes på grund av att studien kräver en fördjupad analys av problemet. Rapportens teoretiska ramverk är framtaget från en litteraturstudie där fokus ligger vid erfarenhetsåterföring, knowledge management, incitament och motivation. Empiriinsamlingen bestod av sex stycken intervjuer som genomfördes av typen semistrukturerade och en dokumentanalys. Resultat: I dagsläget används mest muntlig erfarenhetsåterföring från produktionen. Systemen för erfarenhetsåterföring används inte då kännedomen om systemen är bristfällig och information om hur arbetet med erfarenhetsåterföring ska ske är obefintlig. Arbetet med erfarenhetsåterföring sker inte kontinuerligt under projektets gång och har ingen egen skallsats. Det saknas struktur, ansvar och riktlinjer om hur arbetet med erfarenhetsåterföring ska gå till vilket leder till en ovisshet bland tjänstemännen om vad arbetet med erfarenhetsåterföring innebär. Då ingen information har kommit ut till tjänstemännen om hur erfarenhetsåterföringssystemen fungerar eller vad som finns i systemen leder detta till att motivationen med att arbeta med erfarenhetsåterföringssystemen blir sviktande. Konsekvenser: Slutsatserna för denna rapport är att en kunskapsbank ska göras tillgänglig för alla tjänstemän inom företag där erfarenheter rapporteras in och ut. Under projektets gång ska det arbetas kontinuerligt med erfarenhetsåterföring genom möten och det ska finnas en ansvarsfördelning över in- och utrapportering av erfarenheter inom produktionen. Det ska finnas en tydlig struktur och tydliga riktlinjer ute i produktionen om vad som ska ingå i arbetet med erfarenhetsåterföring. En ansvarig person ska finnas för erfarenhetsåterföringen som ansvarar för kunskapsbanken och ser till att relevant information kommer in i systemet. Begränsningar: Rapporten berör incitament och motivation som är applicerbart i alla organisationer vilket främjar ett generellt giltigt resultat. Rapporten avgränsades från eventuella databasstrukturer vilket anses som positivt då mycket tid hade behövts för att skapa mappstrukturer och ordning i modellens kunskapsbank. Detta hade indirekt tagit tid från fördjupandet

The thesis focuses on pricing complex options using Monte Carlo simulations. Due to the versatility of the Monte Carlo method, we are able to evaluate option prices with various underlying asset models: jump diffusion models, illiquidity models, stochastic volatility and so on. Both European options and Bermudan options are studied in this thesis.For the jump diffusion model in Merton (1973), we demonstrate European and Bermudan option pricing by the Monte Carlo scheme and extend this to multiple underlying assets; furthermore, we analyse the effect of stochastic volatility.For the illiquidity model in the spirit of Glover (2008), we model the illiquidity impact on option pricing in the simulation study. The four models considered are: the first order feedback model with constant illiquidity and stochastic illiquidity; the full feedback model with constant illiquidity and stochastic illiquidity. We provide detailed explanations for the present of path failures when simulating the underlying asset price movement and suggest some measures to overcome these difficulties.

The traveling wave ultrasonic motor is considered for use in haptic devices where a certain input-output relation is desired between the applied force and the resulting motion. Historically, DC motors have been the standard choice for this purpose. Owing to its unique characteristics, the ultrasonic motors have been considered an attractive alternative. However, there are some limitations when using the ultrasonic motor for force-feedback applications. In particular, direct torque control is difficult, and the motor can only supply torque in the direction of motion. To accommodate these limitations we developed an indirect control approach. The experimental results demonstrate that the model reference control method was able to approximate a second order spring-damper system.

Feedback in school is a relevant and important aspect of students' learning and knowledge development. In the school system, the digital opportunities have increased and with this, the digital teaching materials have also taken on a larger and more significant role in the school's operations. Feedback can take place in different ways that contribute to different types of processes in the students in their knowledge acquisition. In this study, we have analyzed three digital teaching materials that all market themselves with relevant concepts that are linked to feedback. The analysis has been based on four feedback levels: task, process, self-regulation and the individual level. We have tried to identify how well these teaching materials provide feedback at these levels for students' individual learning. Results showed that there are large differences between the different levels and how well the teaching aid provides the student with feedback. But the feedback structure between the different teaching aids is relatively similar.

<p>This thesis experimentally investigates the geometry of a high-speed subsonic planar jet impinging orthogonally on a large, rigid plate at some distance downstream. This geometry has been found to be liable to the production of intense narrowband acoustic tones produced by self-excited flow oscillations for a range of impingement ratio, Mach number and nozzle thickness. Self-excited flows and acoustic tones were found to be generated in two distinct flow regimes: a linear regime occurring at relatively low Mach number, and a fluid-resonant regime occurring at higher Mach numbers. The linear regime has been found to generate acoustic tones exhibiting relatively low pressure amplitudes with frequencies which scale approximately linearly with increasing Mach number, and is produced by a traditional feedback mechanism, whereas tones within the fluid-resonant regime are produced by coupling between the unstable hydrodynamic modes of the jet and trapped acoustic modes occurring between the nozzle and the plate, and produce tones at significantly larger amplitudes. Coupling with these trapped acoustic modes was found to dominate the self-excited response of the system in the fluid-resonant regime, with the frequencies of these acoustic modes determining the unstable mode of the jet being excited, and with the impingement ratio of the flow having only minor effects related to the convection speed. Phase-locked PIV measurements have revealed that self-excited flow oscillations in the fluid-resonant regime are produced by a series of five anti-symmetric modes of the jet, along with a single symmetric mode occurring for small impingement ratios. The behavior of large coherent flow structures forming in the flow has been investigated and quantified, and this information has been used to develop a new feedback model, which can be used to accurately predict the self-excited flow oscillation of the jet.</p> / Doctor of Philosophy (PhD)

The effectiveness of simulation training is greatly dependent on providing effective high-quality post-simulation session feedback. In-person feedback is currently considered the gold standard for providing post-simulation session feedback but as simulation training becomes increasingly common, the need to provide equally as effective feedback in a standardized and automatic way increases. This research examines the literature regarding effective information structuring, cognitive design principles, effective feedback practice, and gamification, and applies it to an automated post-simulation session feedback report. The increased effectiveness of the science-based feedback report design is successfully demonstrated in a questionnaire study. By comparing the science-based feedback report design with its original design in an interview study, further beneficial features of effective feedback reports not highlighted in the literature can be extracted. The main results of this research display qualities of feedback report designs that increase and support understandability, learning, and motivation for the readers. The results are demonstrated as a general semantic model called the Effective Feedback Report model (EFR-model) which can be applied to any existing feedback report.

面對多元化、國際化及全球競爭的壓力，私人企業莫不採行新的績效管理制度，來創造員工、管理者及組織三贏之局面。公部門面對資源相對有限，民眾要求與日俱增之窘況，欲改進績效管理並縮小顧客不滿意之缺口，應透過全方位回饋訊息之蒐集，將民意轉化為施政知識，鼓勵人力資源管理能創新改革，以建構人力資源組織的策略地圖，因此，接受多元評估已是無法避免之趨勢。 本研究擬透過文獻分析法、問卷調查法及質化訪談法，從臺北市政府員工認知之觀點，來探究360度回饋模式在臺北市政府實施之可行性，進一步提出臺北市政府實施該模式之構想與建議。 本文計分為五章，第一章說明研究動機、目的及相關概念之界定；第二章為相關文獻之檢視，萃取國內外實證研究中影響360度回饋模式實施之相關因素，以建構第三章問卷設計及質化訪談內容；第四章則從員工認知觀點對「不同評估來源」及「360度回饋模式實施可行性」，進行知覺、差異及相關性之實證分析；第五章則針對研究發現，提出實務上的改進建議及後續研究者未來思考的新方向。 經由本研究發現，在量化問卷部分：（一）不同評估來源方面：員工認為透過不同評估來源者所提供之評估訊息，確實能提高信任感、改善彼此關係及提昇工作效率。（二）360度回饋模式實施之可行性方面：高達66.4%的受訪者支持在臺北市政府實施該模式；選擇由誰擔任評估者較適合，則以其它（視業務相關的利害關係人而定或核稿的其他長官）、自己及外部顧客（民眾）居多；以及不同評估者所提供的回饋訊息應有不同權重之限制。在質化問卷部分：八位受訪者中有五位（占63%）認為該模式在公部門應屬可行，能補充現行由上而下考核制度之不足，並針對可能遭遇的阻礙及每一類別評估者的考評分數應否有一定權重限制等，提出諸多寶貴建議。 最後，根據以上的研究發現，筆者提出對政策、組織及實務操作等三種層面的建議，在臺北市政府推動行政變革作為改進組織績效時，不妨擷取360度全方位回饋模式之精髓，並參考國外政府及企業界實行該模式之成功經驗，設計一套可補充或替換目前績效評估方式不足的評估方法。 關鍵詞：人力資源管理、績效管理、績效評估、傳統績效評估方式、360度回饋模式 / Facing the pressure of diversity, nationalization and global competition, enterprises have been adopting new performance management systems to create the win-win situation between employees and organizations. For public sector, the resources are relatively limited, and the demand of citizens is gradually growing. In order to improve the performance management and minimize the gap of customer dissatisfaction, government should collect the over-all feedback message, translate public opinions into policy context, encourage innovative human resource management. Therefore, it’s necessary to implement multi-source assessment in public sector. This study is aimed at exploring the feasibility of 360° feedback model in Taipei City Government (TCG) from the employees’ perspectives, and offering the suggestion about how to implemented this model in TCG in the future. The research methods in this study include: literature review, questionnaire survey and interview method. This study consists of 5 chapters. In Chapter 1, the motives and objectives of the study are mentioned, and the definitions of relative concepts are clarified. In Chapter 2, the relative literatures are reviewed and the factors that will influence the implementation of 360°feedback model are abstracted from domestic and foreign studies, in order to construct the quantitative and qualitative questionnaires in Chapter3 . Chapter 4 is about the positive analysis on “different evaluation sources” and “the feasibility of implementing 360°feedback model” from employee’s perspective. Based on the research findings, some suggestions and recommendations of practice and further research are offered in Chapter 5. The research findings include two parts. First, in the part of quantitative questionnaire, some conclusions have inducted: 1) about different rater sources: employees do believe that multi-source evaluation indeed could increase trust, improve relationship, and enhance efficiency. 2) about the feasibility of 360° feedback model: (A)Over 66.4% responders agree to implement 360° feedback model in TCG; (B) Majority of responders would choice the item “others” (stakeholders related with business or other superiors charged with official papers), “myself” and external customers (citizens) as the proper evaluators; (C) The feedback messages from different evaluators should be given certain limitation in weight. Second, in the part of qualitative interview, 5 of 8 (63%) interviewees thought 360°feedback model is feasible in public sector, and can compensate the shortcomings of current top-down performance system. They also offered many precious opinions and suggestions in themes such as: how to overcome the possible obstacles, and if we should limit the weights of scores from different evaluators. Ultimately, according to the research findings above, this study presents many helpful suggestions from the aspects of policy, organization and practice. If the officials of TCG would like improve the performance through administrative reform, they can adopt the spirit and essence of 360°feedback model, and learn the successful foreign experiences both from public and private sectors, then develop a performance assessment model that can compensate or even replace the current one. Key words: Human Resource Management, Performance Management, Performance Assessment, Traditional Performance Assessment Model, 360°Feedback Model.