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3358 Uppsatser om Sliding Mode Control - Sida 18 av 224

Universell Design - en användbarhetsutvärdering av MyTobii C-series Control

Universal Design is a well established methodology with the fundamental purpose of designing products to be usable for as wide audience as possible, without the need of special adjustment to suit the individual. In this essay, Universal Design has had a clear influence in both the process and the result. The choice to use Universal Design as methodology in this usability evaluation, has essentiallv to do with the target audience.As a part of the design process of MyTobii C8 has Tobii Technology ask for a usability evaluation. MyTobii C8 is an 8" touch screen computer with a windows based operating system which will initiate the software MyTobii C-Series Control. MyTobii C-Series Control is the control panel for MyTobii C8, whose interfaces constitute the platform for various modificarion of the unit.

Styrsystemets roll i balanseringen mellan kontroll och empowerment : En kartläggning av ett styrsystem och varför användningen leder till observerade effekter på personalen

Problem discussion: That empowerment and autonomy can lead to desirable effects on employees is clear. Previous research has found correlations between empowerment and e.g. motivation, job satisfaction, productivity, loyalty and commitment. However, a control problem arises when employees have more freedom in decision-making which could potentially lead to undesirable outcomes. It thus becomes a type of dilemma for management and managers where you have to try to balance a restrictive use of the control system (to maintain control) and an enabling use (to promote empowerment).Purpose: The purpose of this study is therefore to identify how a company can use its control system in order to achieve empowerment while maintaining acceptable levels of control.

Utveckling av programvara till ett inbyggt styrsystem

This thesis considers the development of the software for an, newly developed, embedded real-time control system, based on a Periferal Interface Controller (PIC). The control system is developed to be used for several different applications. In this thesis work, software for two different applications are developed. The first task is a time controlled system, while the other task is implementation of aPI-/PID-controller. A user interface is also developed and implemented.The time controlled system is an automatic horse feeder, which is used for feeding horses at certain predefined points in time.

En fallstudie av normativ kontroll på ett telemarketingföretag : En diskursanalytisk studie av etik som motiv till övervakning och styrning

The strive for control over employees has developed throughout the years. This paper has its focus on how normative control can work as a powerful method to create and uphold a sought for behavior. Many companies have found an interest in a higher moral stance to get competitive advantages, and offer their customers and partners a more ethical product. This phenomenon has in Sweden resulted in a sphere of companies who has earned the R-licens. The R-licens is earned by companies if they fulfill ethical and cultural criteria.

Riskkapital i svensk fotboll: En fallstudie om kontroll, tillit och förtroende

The aim of this paper is to examine how confidence in co-operative behaviour of partner is reached in a relationship between an entrepreneur and a venture capitalist. A case study has been conducted on a Swedish football club that has involved venture capital in order to develop the organization. The paper presents a theoretical approach which draws on a control model of interorganizational relationships developed by Dekker (2004) and a model developed by Shepherd & Zacharakis (2001) illustrating how control, trust and confidence is reached in a venture capitalist-entrepreneur relationship. The relationship between the football club and the venture capitalist can simultaneously be seen as an interorganizational relationship and a relationship between an entrepreneur and a venture capitalist. Because of the complexity of the relationship, different control problems prevail.

Resurseffektivt bussprotokoll o?ver RS-485

This report describes the design and implementation of a multi-master, packet based protocol for small and tiny microcontrollers where resources are limited. The protocol was named "Tiny Controller Network" or TCN for short. The protocol is meant mainly as a control bus for automation and sensor acquisition applications but due to its flexibility can also be used for other purposes as well. It borrows some of its functionality and design ideas from the well known CAN bus and Modbus but also has a number of major differences like the use of standard hardware and time synchronisation. One of the key aspects during the design was the use of very little system resources and common on-chip hardware peripherals like a UART.

Att ösa ur ett hav : Om kunskapssyn och urvalsprocesser hos gymnasielärare i Samhällskunskap A

Teachers in social sciences have a broad subject field to base their education on. This term paper examines, thru interviews, which factors that have an influence on the subjects contents in the A course of Social Sciences at Swedish high schools. Having interviewed four active teachers at three different schools, it shows that control documents like subject- and national curricula have little to say about what kind of subject that should been taught. Teachers seem rather to rely on local collegiate consensus, the textbook, locally prepared control documents, and adjusting to program directions while choosing material. In the final discussion the risk of structuring the subject around the text book is being investigated, along the fact that new locally control documents need to be written even for basic planning structures.

Hypertrofisk kardiomyopati hos en familj brittiska korthårskatter :

The objectives of this study was to examine the prevalence of hypertrophic cardiomyopathy in a family of British Shorthaircats to determine the mode of inheritance and to investigate if the disease was associated with a mutation in myosin binding proteinC (MyBPC3). The family comprised 28 cats, seven male and 21 females. The cats underwent a physical examination, including cardiac auscultation, and an ultrasound examination. Blood was collected for DNA- analysis. The blodsamples were sent in a buffer solution to Kathryn Meurs, Washington State University, USA for analysis, where the genes coding for MyBPC, Troponin I and T were characterized using microsequencing technique. Out of the 28 cats, 8 were diagnosed with HCM, 2 were diagnosed with congenital heart disease but had no evidence of HCM.

Artificiella neurala nätverk som lösning på segmenteringsproblemet vid gestigenkänning

Ett av de stora problemen med gestigenkänning är det som kallas segmenteringsproblemet. Segmenteringsproblemet är problemet att hitta var en gest börjar och var den slutar, d v s att segmentera upp gester. I detta arbete testas en lösning till detta problem då gester består av figurer ritade i luften. Lösningen går ut på att använda två stycken artificiella neurala nätverk av strukturen FeedForward. Det ena nätverket tränas på att känna igen när handen accelererar från stillastående, vilket representerar starten av en gest, och det andra tränas på att känna igen när handen saktar ner till stillastående, vilket representerar slutet av en gest.

Att förena kontroll med rättigheter : En uppsats om barns rättigheter i relation till kontroll och regler i HVB-hem

This essay discusses children?s rights and control and system of rules in HVB-homes that provide treatment for adolescences with drug abuse prob­lems or criminal behavior. The results of this study are based on interviews with four persons working in managerial positions on different HVB-homes and shows the difficulties of having a children?s rights perspective in a con­text where a higher level of control is necessary to protect the best interest of the child. The study suggests that the question of balance between children?s right and the need for controlling system of rules needs to be fur­ther dis­cussed to improve, and as far as possible guarantee that these adoles­cence receive best possible care and do not suffer unfair restrictions on liber­ties..

Konstruktion och reglering av flygande plattform

This report describes the manufacture and control of a flying platform. The report describes the basic and fundamental theories required to get the platform flying. It touches on subjects such as A/D-conversion. PWM-control and PID-control. The sensors used in the platform are a gyro and an accelerometer.

Undersökning av mätsystem och regulatorstrukturer för industriella tillämpningar

This thesis is divided in to two different parts. The first part includes examination of the measurementsystem of an industrial robot using a resolver sensor. The main focus is on methods for suppressing noise in the angularvelocity signal without increasing timedelay. Five different methods are investigated. Three of these are based on oversampling: burstsamplingmethod, meanvaluemethod and correlationmethod.

Hur inverkar kontrollbordet på frekvenskurvan vid lyssningsposition i kontrollrummet när placeringar av högtalaren och lyssningsposition placerats efter ITU-R BS.1116-1 rekommendation?

The acoustics in a control room is a complicated phenomenon. Early reflections, reverberation time and area in the room are some of the problems. This report is about the reflection on the mixing console in a control room. The control room being built, these reflections are difficult to take into consideration since the mixing console is one of the very last items you place in the room. This report will explain three main measurements that were done in order to get the answer to the following question: Does the mixing console interfere the frequency curve at listening position? Three measurements were done and the difference between the measurements was that the microphone and the loudspeakers were placed in different places in the control room.

Trovärdighet på onlinebutiker inom mode : En kvalitativ studie av den estetiska utformningens påverkan på trovärdigheten vid ett första intryck

E-commerce is becoming more common in Sweden and many Swedes buy clothing and sporting goods online. Online fashion retailers offer a visually pleasing range of products, which places greater emphasis on the aesthetic design of the online retailer. This paper examines how the perceived credibility of an online fashion retailer is influenced by the aesthetic design through a first impression. This study was conducted through ten interviews where the informants observed, assessed, and then discussed the online fashion retailers that were used in this study. Results show that recognition of an aesthetic design and a perception of usability and professionalism affects the perceived credibility in a positive way.

Arbetsmotivation i äldreomsorgen: en explorativ studie av uppfattningar hos medarbetare och chef vid ett äldreboende

An explorative study on the work motivation of employees at a retirement home. The three main factors are internal motivation, external motivation and control. A comparison between how important they estimate the different factors to be and how they experience them today reveals which factor is their key motivator and which areas that need improvement. Results indicat that internal and external motivation are slightly more important than control. And the amount of perceived control reflects the amount of creative and initiative behaviour of the individual.

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