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2403 Uppsatser om Cost engineering - Sida 52 av 161

Sa?kerhet och integritet i webbapplikationer : En orientering o?ver sa?ker utveckling

The use of Web applications is a growing area. While the possibilities and functionalities are increasing, so is the complexity of them, together with the threats against them because the complexity also opens up the application to vulnerabilities. It is therefore important for developers to know how a web application can be developed with security in mind.This study?s intention has been to create an introductory documentation of what kind of techniques that exists which can produce higher security, which methods there can be within the development process and what to think about when programming secure web applications. In this paper we have investigated how theoretical manuals in the IT security department handles that area, and interviewed two developers from two different companies to see how they use security in their web applications.The study has an exploratory technical perspective and does not explain how to practically use and interconnecting different security-enhancing technologies, but is more suppose to give a first glance at what is available and sow a seed for those interested to continue reading further about the subject.

Energiinventering av Soldathemmet

This examination paper is an energy-inventory of Soldathemmet at the regement in Halmstad, in colaboration with Fortifikationsverket in Halmstad. The building is first an foremost for the soldiers, where they can go for a cup of coffee or watch TV. There is also a museum and a drivers school in the building. Calculations have been done with two computerprograms; VIP+ and ISOVER Energy. The results were well matched with the statistics that were provided by Fortifikationsverket.

Expansionsmaskiner istället för strypventiler - en effektivisering

In Uppsala CHP Plant, there are six pressure reducing valves to reduce the pressure from 15 to 3 bars, before six absorption heat pumps. During the process the energy is conserved but losses occur in form of exergy. The aim of this thesis is to reduce the losses of exergy. This can be done by letting turbines replace the pressure reducing valves.In this thesis an investigation has been done of the conditions today, the conditions after the change from pressure reducing valves to turbines and a comparison of three different types of turbine solutions. The three examined solutions are one turbine, several helical screw expanders and several small turbines in parallel with asynchronous generators.The six absorption heat pumps have been divided into two groups; one group of four and one group of two absorption heat pumps.

Kommunikation inom e-handel : En undersökning ur konsumentperspektiv

AbstractDespite that e-business nowadays is established scepsis against it amongst consumers exists. We, as consumers, suppose that this skepticism is caused by bad communication from the e-business companies. This has lead to our suggestion that some con-sumers refrain from e-business because of bad communication or deficient trust.Our purpose with this paper was to investigate factors of communication between companies and consumers within e-business (B2C) from the consumers? point of view. We thereby have drawn conclusions regarding consumers? choice of e-business company.

Brandskydd av stålprofiler

Denna rapport är resultatet av en studie kring kostnader för brandskydd av stålprofiler. Rapporten inleds med en beskrivning av problemet att hitta den ekonomiskt bästa lösningen för brandskydd av stålpelare i en konstruktion med specificerad brandklass. Därefter följer en allmän del om brandskydd och en övergripande redogörelse för gällande lagar och föreskrifter som har betydelse för brandskyddsdimensioneringen. De laster och förutsättningar som ligger till grund för valet av pelardimensioner beskrivs och valda dimensioner redovisas i tabell. Därefter följer en beskrivning av de brandskyddsmaterial som studerats: inklädnad med gips-, fibersilikat-, och stenullsskivor samt brandskyddsmålning.

Kvinnlig chef i byggbranchen : faktorer som utgör hinder till avancemang

Background: Studies that have been made in male-dominated organisations shows that only few women have succeeded in advancing to the higher positions in all businesses. Statistics shows that merely 4 % of the managers in all building companies are female. The manager role has earlier always been classified as most suitable for men resulting in barriers for women who strive for management positions. This problem is now very renowned and is called the glass ceiling. To improve the current situation, both the organization's structure and culture, have to be modernized for more women to succeed and get the courage to get into the industry.

Att effektivisera armeringsarbete : Från idé till genomförande

Most of today?s concrete structures that are built on site are mainly constructed in a traditional fashion with a lot of artisanal operations. One step towards industrializing the in-situ construction of concrete is to use prefabricated reinforcement. Through this method there can be a lot of savings when each bar doesn?t have to be placed and fixed separately on site.

Ruttplanering : Retursystem för pantade PET-flaskor och aluminiumburkar

This report is the final part within our education, Industrial Organization and Economy focusing on Logistics and Management at Jönköping School of Engineering. The aim with this report is to coordinate recycle drives for deposited aluminum-cans and bottles collected from grocery stores within Jönköping county and locality.In the present situation both aluminum cans and bottles filled with drinks are distributed to the grocery stores by the brewery?s own distributers. At the same time as they supply the drinks they also discharge the grocery stores units with restored aluminumcans and bottles. To make it easier for the grocery stores to handle the goods in the future, all distribution of drinks ought to be directly delivered to the grocery stores own separate central warehouse.

Framgångsfaktorer och hinder med Lean produktion i Kina

AbstractLean production has become one common concept within industries to make the work more effective and to meet today?s hard competition. A challenge for Chinese production is the threat from new low cost countries. It will become very difficult to succeed to produce to a lower cost than these countries; this led to that Chinese companies must develop new strategies, according to Lee and Zhou (2000). This will put China in front of new challenges and new strategies can be needed to retain their strong competitive advantages.

Prisskillnader mellan svenskt och sydamerikanskt nötkött - Rosa eller Rosita på tallriken?

Syfte:Syftet med vår uppsats är att kartlägga nötköttsbranschen med avsikten att vidare utreda de bakomliggande faktorerna till varför det, i butiker, skiljer så mycket i pris mellan svenskproducerat och utländsk importerat nötkött. Metod:I vår uppsats har vi utgått ifrån en deduktiv ansats, med vissa induktiva inslag. Vi har använt oss av en kvalitativ metod, där vi har insamlat material främst via intervjuer. Teoretiskt perspektiv:Vi har använt oss av teorier i form av de fem konkurrenskrafterna och Strategic Cost Management. De fem konkurrenskrafterna möjliggör en kartläggning av nötköttsbranschen och genom Strategic Cost Management har vi analyserat värdekedjan, vilket köttet passerar igenom från producenten till butikerna.

Programmering av testrigg för marindrivlina

Marinediesel Sweden AB i Ängelholm tillverkar och utvecklar båtmotorer och motorbåtsdrev. Jaggjorde mitt exobb på avdelningen MD Engineering som huvudsakligen utvecklar marina drivlinor.Marinediesel Sweden AB var i behov av ett styrprogram till den testbänk de byggt för att kunna testasina motorbåtsdrev. Denna rapport beskriver arbetet jag utfört för att färdigställa och optimera ettstyrprogram till en testrigg för marina drivlinor. I rapporten tar jag upp drevbänkens uppbyggnad, dessfunktion samt de problem jag stött på på vägen. Bland annat beskrivs hur effektförlusten beräknasmed energidifferensen i tillförd och bortförd olja i drevet, samt hur det pålagda vridmomentet, somsimulerar belastningen vid verkliga driftsförhållanden, styrs och beräknas med endast trycket ihydraulcylindrarna..

Webbaserat Tidrapporteringssystem

Systemet som förenklar hantering och information av tidrapportering, projekt, kunder, lager och anställda. Syftet är att företaget skall få en mera överblick över deras verksamhet, då all information samlas på samma ställe. De anställda kan via webben snabbt och enkelt rapportera in deras arbetstider under den gångna veckan. Systemet innefattar: SMS-tjänst, automatiskt utskick, hanteringen för lager, projekt, kunder och semester, kontinuerlig statistik med grafiska diagram samt utskriftsfunktioner. Allt är utvecklat i PHP och MySQL..

Utvärdering av lämpliga metoder för vattengenerering

This master thesis has been performed at the department of Machine Design at KTH, The Royal Institute of Technology. The thesis has been a part of a global development project in collaboration with Luleå University of Technology, Lund Faculty of Engineering and Stanford University. Corporate liaison and sponsor has been Immerse Global Inc. The project was also performed on sponsorship from the Product Innovation Engineering Program, PIEp. The thesis is a representation of some of the contributions made by the authors.The lack of clean drinking water is one of the key issues facing the world today.

Strategisk/taktisk vägplan :

The purpose of this thesis was to create a strategic/tactical road access plan. This was done by designing an analytical method which gives the road manager a template to create long-term road access plans. The analytical method will help to identify and appraise roads to be upgraded and give information when it is time for building new roads. The study method involved developing an analytical method. The method was comprised of five main parts: the harvest plan, analysis of the road network, transport costs, quality and storage costs and finally, identification of investment alternatives.

Buskröjning längs skogsbilvägar : en produktivitetsstudie av två kättingslagor

To regularly remove woody vegetation along the roadside of forest roads is an important part of the road maintenance, since the vegetation binds moisture in the road side and, thus, the removal makes the road drying faster with results in improved bearing capacity. Vegetation removal also makes it easier to upgrade the road by material recycling from the ditch and, moreover, the visibility along the road is maintained.The aim of the study was to evaluate what type of chain flail is the best and most cost-effective for removal of different kind of woody vegetation along forest roadsides.Time studies were made on two chain flails when removing woody vegetation in three different classes; easy-, middle- and heavy shrub removal. The studied flails were one light and rather simple flail named Optimal M160 and a heavier and more advanced flail named Slagkraft H210. The removal was made according to Holmen Skogs? specification and the quality of the cleaning was measured by objective belt inventory.The productivity was higher with the heavy flail within all cleaning classes.

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