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Vendor Managed Inventory - vad får det för effekter? : En jämförelsestudie mellan teorins beskrivna effekter och upplevda effekter inom tillverkningsindustrinBrandt, David, Rubin, Tina, Valberg, Joel January 2007 (has links)
<p>Sammanfattning</p><p>Kandidatuppsats i företagsekonomi, Ekonomihögskolan vid Växjö universitet,</p><p>EKL 361, VT 2007.</p><p>Författare: David Brandt, Tina Rubin och Joel Valberg.</p><p>Handledare: Roger Stokkedal</p><p>Examinator: Petra Andersson</p><p>Titel: Vendor Managed Inventory – vad får det för effekter? En jämförelsestudie</p><p>mellan teorins beskrivna effekter och upplevda effekter inom tillverkningsindustrin.</p><p>Bakgrund: Den logistiska kedjan från producent till konsument blir alltmer komplex</p><p>på grund av att ett ständigt ökande antal artiklar tillverkas utifrån kundens behov och</p><p>önskemål. För att kunna tillgodose dessa behov och önskemål har företag historiskt</p><p>sett haft stora lager. VMI tar problemet med att hantera och utveckla effektiva lager</p><p>till en ny nivå. Att arbeta med VMI innebär stora fördelar för många olika företag när</p><p>det gäller informationsspridning, partnerskap och lagerföring. Trots de omfattande</p><p>fördelar som beskrivs i de flesta teorier om VMI finns det en del framförd kritik. I och</p><p>med detta ligger det i vårt intresse att undersöka huruvida företag som arbetar med ett</p><p>VMI-system upplever de teoretiska effekterna och om det finns effekter av VMIsamarbeten</p><p>som teorin inte beskriver.</p><p>Problemformulering: Vilka effekter, angående de logistiska aktiviteterna, innebär ett</p><p>VMI-samarbete i en dyad inom tillverkningsindustrin och hur stämmer de överens</p><p>med de effekter teorin beskriver?</p><p>Metod: Genom att använda fallstudien som forskningsmetod, har vi undersökt vårt</p><p>problem. Vidare har vi använt oss av ett kvalitativt tillvägagångssätt vid</p><p>datainsamlingen. De undersökta företagen har valts ut genom ett ickesannolikhetsurval</p><p>och när vi har dragit våra slutsatser har vi utgått från en deduktiv</p><p>ansats.</p><p>Teori: Vi har byggt vår teori på fyra huvudområden/logistiska aktiviteter,</p><p>leveransservice, logistikkostnader, produktion och lagerhållning. Vidare har vi</p><p>beskrivit hur områdena påverkas positivt såväl som negativt av VMI.</p><p>Empiri: Vår empiriska undersökning har genomförts i två dyader, inom</p><p>tillverkningsindustrin, som använder eller har använt sig av VMI. Vi har undersökt hur</p><p>företagen har upplevt/upplever samarbetet och vilka effekter de har erfarit/erfar inom</p><p>de fyra logistiska aktiviteterna.</p><p>Resultat: Resultatet har vi grundat på en jämförelse mellan vår teoretiska och</p><p>empiriska undersökning. Vi har här kommit fram till att de positiva effekterna, som</p><p>teorin beskriver, i större utsträckning stämmer överens med vad företag inom</p><p>tillverkningsindustrin upplever än de negativa effekterna. Hur väl effekterna</p><p>överensstämmer skiljer sig åt mellan de olika logistiska aktiviteterna.</p>
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Lagerstyrningssystem för ökad flexibilitet / Inventory control system for increased flexibilityAltsäter, Erik January 2009 (has links)
<p>Detta examensarbete har ägt rum vid Produktionsverkstad 1 (PV1) på Wexiödisk AB där diskmaskiner av huvtyp tillverkas. Syftet med detta examensarbete har varit att undersöka vilka lagerstyrningsmodeller som är lämpliga för att styra avdelningens materialflöden med. Arbetet har genomförts i två steg. Först behandlades artiklar unika för produkterna vid PV1, därefter artiklar gemensamma med andra produkter. Enligt modeller ur relevant litteratur utformades förslag på hur dessa kunde appliceras praktiskt. Förslagen presenterades och diskuterades med berörd personal som valde Tvåbingesystem 2. Ett test gjordes enligt principen ”den japanska sjön” vilket innebar lägre lagernivåer i lastbärarna. De problem som uppstod noterades. Resultatet blev att antalet artiklar som plockades i veckosatser minskades vilket skapat underlag för att minska administrationen av tillhörande plocklistor. Plockvagnen har kunnat tas bort vilket frigjort yta vid monteringsavdelningen. Förutsättningar finns att slå samman två plocklistor till en och därmed förenkla arbetet för förrådspersonalen.</p> / <p>This degree project has been performed at Production unit 1 (PV1) at Wexiödisk AB, where hood type washing machines is manufactured. The purpose of this project has been to investigate which inventory control models that could be suitable to control the section’s material supplies. The work has been accomplished in two steps. At first, items unique to products manufactured at PV1 were treated, followed by items common with other products. According models in relevant literature, suggestions were made to how the models could be applied practically. The suggestions was presented to and discussed with the parties concerned who chose Two-bin system 2. A trial was carried out according to the principle of “the Japanese river” which implied lowered inventory levels. The problems that occurred were noted. The result was that the number of items that was weekly picked and distributed was reduced which has created a basis to also reduce the administration of the systems picking lists. The item wagon has been removed which has cleared floor space at the assembly section. Conditions have been created to merge two picking lists into one and thereby simplify the work for the inventory staff.</p>
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Coordination of inventory and transportation decisions in a two-stage supply chainÇapar, İsmail, January 2007 (has links)
Thesis (Ph.D.)--Mississippi State University. Department of Industrial and Systems Engineering. / Title from title screen. Includes bibliographical references.
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Developmental childhood experiences as antecedents to State-trait anger in an expatriate populationPaetzhold, Geoffrey L. January 1900 (has links)
Thesis (Ph. D.)--Oxford Graduate School, 2001. / Abstract and vita. Includes bibliographical references (leaves 420-447).
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Studies of inventory control and capacity planning with multiple sourcesZahrn, Frederick Craig. January 2009 (has links)
Thesis (Ph.D)--Industrial and Systems Engineering, Georgia Institute of Technology, 2010. / Committee Co-Chair: John H. Vande Vate; Committee Co-Chair: Shi-Jie Deng; Committee Member: Anton J. Kleywegt; Committee Member: Hayriye Ayhan; Committee Member: Mark E. Ferguson. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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The effect of plot co-registration error on the strength of regression between LiDAR canopy metrics and total standing volume in a Pinus radiata forestSlui, Benjamin Thomas January 2014 (has links)
Background: The objective of this study was to verify the effect that plot locational errors, termed plot co-registration errors, have on the strength of regression between LiDAR canopy metrics and the measured total standing volume (TSV) of plots in a Pinus radiata forest.
Methods: A 737 hectare plantation of mature Pinus radiata located in Northern Hawkes Bay was selected for the study. This forest had been measured in a pre-harvest inventory and had aerial LiDAR assessment. The location of plots was verified using a survey-grade GPS. Least square linear regression models were developed to predict TSV from LiDAR canopy metrics for a sample of 204 plots. The regression strength, accuracy and bias was compared for models developed using either the actual (verified) or the incorrect (intended) locations for these plots. The change to the LiDAR canopy metrics after the plot co-registration errors was also established.
Results: The plot co-registration error in the sample ranged from 0.7 m to 70.3 m, with an average linear spatial error of 10.6 m. The plot co-registration errors substantially reduced the strength of regression between LiDAR canopy metrics and TSV, as the model developed from the actual plot locations had an R2 of 44%, while the model developed from the incorrect plot locations had an R2 of 19%. The greatest reductions in model strength occurred when there was less than a 60% overlap between the plots defined by correct and incorrect locations. Higher plot co-registration errors also caused significant changes to the height and density LiDAR canopy metrics that were used in the regression models. The lower percentile elevation LiDAR metrics were more sensitive to plot co- registration errors, compared to higher percentile metrics.
Conclusion: Plot co-registration errors have a significant effect on the strength of regressions formed between TSV and LiDAR canopy metrics. This indicates that accurate measurements of plot locations are necessary to fully utilise LiDAR for inventory purposes in forests of Pinus radiata.
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Assessment of Student Achievement in Introductory Physical Geology: A three -year study on delivery method and term lengthCaldwell, Marianne O'neal 01 January 2012 (has links)
Physical Geology is a popular general education course at Hillsborough Community College (HCC) as at many other colleges and universities. Unlike many science courses, most students taking Physical Geology are not majoring in a STEM (Science, Technology, Engineering, and Mathematics) discipline. Typically most students enrolled in Physical Geology are majoring in business, education, or pursuing a general A.A degree for transfer to a four-year university. The class is likely to be one of the few, if not the only, physical science classes that many of these students will take in their academic career. Therefore, this class takes on increased importance, as it will provide students with the foundation for scientific knowledge to be applied throughout their working careers.
Student performance in an online general education physical geology course was examined and compared in this three and a half-year study involving over 700 students. Student performance was compared on the basis of term length (sixteen week semester versus nine week summer term) and delivery method (online versus face-to-face). Four identical tests were given each term; the average score of four tests was used to evaluate overall student performance. Neither term length or delivery method has a significant influence on student test scores as demonstrated by similar average score per term, similar standard deviation, and similar distribution pattern. Student score distribution follows a normal distribution reasonably well. The commonly used ANOVA tests were conducted to confirm that there is no statistically significant difference in student performance.
A concept inventory of the geosciences can be valuable in providing a means to test if students are indeed learning geological concepts and to identify which misconceptions students are likely to enter class with so they can be addressed. Based on a set of 16 Geoscience Concept Inventory questions selected by the instructor, no difference in student performance was found between pre-test and post-test in terms of average score and score distribution. Some misconceptions were identified by the GCI, however little to no improvement was noted in the post-test. In contrast to the GCI, remarkable improvement in student learning is illustrated by the instructor-specific test. Possible reasons for this result are as follows, students may have adapted more to the individual instructor's test writing style and teaching style throughout the semester. The pre-test and post-test for the instructor given tests were assigned as a grade, perhaps prompting the student to take the test more seriously and consider the answers more carefully. The questions written are instructor-specific and course-specific, meaning that the students likely were introduced to the concept more thoroughly and multiple times.
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Incremental validity of the Minnesota Multiphasic Personality Inventory (MMPI-A) and Rorschach Inkblot Test in predicting the number and severity of adolescents' maltreatment historiesPerfect, Michelle Marie 28 August 2008 (has links)
Not available / text
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A feasibility study of a computerized adaptive test of the international personality item pool NEOMcClarty, Katie Larsen 28 August 2008 (has links)
Not available / text
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Swedish bumblebee decline? Outcome from a national monitoring program with a five-year interval between surveysLarsdotter, Annika January 2015 (has links)
Bumblebees are important pollinators that are said to be in decline all over the world. Swedish bumblebees have now been inventoried through a nationwide monitoring program for which data for the first time have been analysed. The aim here was to give an indication of how 35 bumblebee species in Sweden have changed in occurrence over five years interval in the national inventory program. The results given in this report showed that 5 bumblebee species (B. lucorum, B. magnus, B. cryptarum, B. terrestris and B. pascuorum) had declined significantly. Furthermore bumblebees as a group had a significant decline while none of the species had increased. Moreover, declining Swedish bumblebees are species that are common in Europe while species that are declining in Europe do not seem to decline in Sweden. This result was somewhat unexpected, considering the European status of bumblebee species. Furthermore results showed that early emerging species and species living in ubiquitous and open areas had declined. This was also surprising comparing with previous research. Lastly the results showed that two bumblebee species (B. hortorum and B. terrestris) have shifted towards the south within Sweden while none shifted towards north or in a west-east direction.
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