116 research outputs found

    PERBANDINGAN FUZZY GUSTAFSON KESSEL DAN FUZZY C-SHELL PADA POLA TANDA TANGAN

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    Penelitian ini bertujuan untuk menganalisis penerapan metode Fuzzy Gustafson-Kessel (FGK) pada tanda tangan dan menguji tingkat keakuratan pengenalan tanda tangan dengan menggunakan metode FGK. Serta membandingkan tingkat keakuratan pengenalan tanda tangan antara metode FGK dengan metode Fuzzy C-Shell (FCS). FGK dan FCS merupakan suatu metode pengelompokan data berdasarkan kecenderungan sifat yang dimiliki oleh data tersebut. Data yang digunakan adalah data tanda tangan dari 10 orang yang masing-masing orang memberikan 12 tanda tangan yaitu 6 tanda tangan asli dan 6 tanda tangan palsu. Tanda tangan asli dan palsu diubah menjadi data matriks dengan menggunakan software MATLAB. Data matriks tersebut diolah menggunakan software R. Hasil penelitian menunjukkan bahwa tingkat akurasi metode FCS lebih akurat dibandingkan metode FGK. Tingkat akurasi mencapai 85.83% untuk FCS dan 60.83% untuk FGK

    Examining the Relationship Between Received Remittances and Education in Malawi

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    This thesis examines the relationship between received remittances and education using random samples from panel survey data from households in rural Malawi collected between 2008 and 2010. Past research as well as that conducted in this paper point to the fact that remittances and education share an important correlation. The results of this study indicate that on a microeconomic level, remittances have a highly significant and positive impact on household education. Other remittance-related factors such as the distance from agent, the remittance amount, and the type of account held by an individual also have a significant impact on the highest level of education attained by an individual, whereas the account type, age, gender, and marital status are important determinants in the probability of an individual ever having attended school. The results from this study raise questions as to whether the “brain drain” can actually have a positive impact on developing nations. The study also discusses policy implications for money transfer operators in Sub-Saharan Africa

    Fluvio-morphological processes of meander bends - Combining conventional field measurements, close-range remote sensing and computational modelling

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    Meandering rivers have been perceived to evolve rather similarly around the world independently of the location or size of the river. Despite the many consistent processes and characteristics they have also been noted to show complex and unique sets of fluviomorphological processes in which local factors play important role. These complex interactions of flow and morphology affect notably the development of the river. Comprehensive and fundamental field, flume and theoretically based studies of fluviomorphological processes in meandering rivers have been carried out especially during the latter part of the 20th century. However, as these studies have been carried out with traditional field measurements techniques their spatial and temporal resolution is not competitive to the level achievable today. The hypothesis of this study is that, by exploiting e increased spatial and temporal resolution of the data, achieved by combining conventional field measurements with a range of modern technologies, will provide new insights to the spatial patterns of the flow-sediment interaction in meandering streams, which have perceived to show notable variation in space and time. This thesis shows how the modern technologies can be combined to derive very high spatial and temporal resolution data on fluvio-morphological processes over meander bends. The flow structure over the bends is recorded in situ using acoustic Doppler current profiler (ADCP) and the spatial and temporal resolution of the flow data is enhanced using 2D and 3D CFD over various meander bends. The CFD are also exploited to simulate sediment transport. Multi-temporal terrestrial laser scanning (TLS), mobile laser scanning (MLS) and echo sounding data are used to measure the flow-based changes and formations over meander bends and to build the computational models. The spatial patterns of erosion and deposition over meander bends are analysed relative to the measured and modelled flow field and sediment transport. The results are compared with the classic theories of the processes in meander bends. Mainly, the results of this study follow well the existing theories and results of previous studies. However, some new insights regarding to the spatial and temporal patterns of the flow-sediment interaction in a natural sand-bed meander bend are provided. The results of this study show the advantages of the rapid and detailed measurements techniques and the achieved spatial and temporal resolution provided by CFD, unachievable with field measurements. The thesis also discusses the limitations which remain in the measurement and modelling methods and in understanding of fluvial geomorphology of meander bends. Further, the hydro- and morphodynamic models’ sensitivity to user-defined parameters is tested, and the modelling results are assessed against detailed field measurement. The study is implemented in the meandering sub-Arctic Pulmanki River in Finland. The river is unregulated and sand-bed and major morphological changes occur annually on the meander point bars, which are inundated only during the snow-melt-induced spring floods. The outcome of this study applies to sandbed meandering rivers in regions where normally one significant flood event occurs annually, such as Arctic areas with snow-melt induced spring floods, and where the point bars of the meander bends are inundated only during the flood events.Siirretty Doriast

    ”Mä niinku mieluummin suomalaiseen tyyliin, et jos kolmella sanalla pärjäis”: Monikielisen tiimin johtamista vieraalla kielellä kuvaavat kertomukset

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    Tämän pro gradu -tutkielman tavoitteena on selvittää, miten vieraan organisaatiokielen käyttö vaikuttaa monikansallisissa organisaatioissa työskentelevien esihenkilöiden kokemukseen monikielisen tiimin johtamisesta. Pyrin selvittämään, miten kokemus vieraalla kielellä johtamisesta ilmenee esihenkilöiden kertomuksissa. Tutkielman näkökulma kokemuksen muodostumiseen on narratiivinen. Tutkielman teoreettinen viitekehys muodostuu Karhunen ym. (2018) esittelemien kielinäkökulmien pohjalle, josta olen muodostanut oman integroidun kielinäkökulman. Tutkielman aineiston olen kerännyt keväällä 2020 haastattelemalla viittä monikansallisessa organisaatiossa työskentelevää monikielisen tiimin esihenkilöä. Haastattelut toteutettiin puolistrukturoituina teemahaastatteluina, joista johdetut litteraatiot analysoitiin temaattisella analyysillä. Tutkimusaineiston perusteella voidaan todeta, että muodostamani integroitu kielinäkökulma sai vahvistusta, sillä esihenkilöiden kokemuksiin monikielisen tiimin johtamisesta vaikuttavat monet eri tekijät, kuten oma ja alaisten kielitaito, muu viestinnällinen kompetenssi, sekä esimerkiksi yksilön erilaiset viestintätyylit. Yksilön viestintätyylin taustalla vaikuttaa myös monet seikat kuten kulttuuriset tekijät ja esimerkiksi persoonallisuus. Vaikka organisaatiokieleksi olisikin valittu esimerkiksi englanti, käyttävät esihenkilöt tiiminsä jäsenten kanssa mahdollisuuksien mukaan myös paikallista kieltä eli suomea. Suomea puhutaan, koska sen koetaan olevan luontevampaa silloin, kun viestitään vain niiden alaisten kanssa, jotka puhuvat suomea. Silloin kuin esihenkilöt puhuvat alaisten kanssa suomea, liittyy siihen tuttuuden ja luottamuksen tunteita ja ajatus siitä, että viestinnässä on yleensä vähän väärinymmärryksiä. Vaikka monikielisen tiimin esihenkilöt kokevat työssään usein viestinnällisiä haasteita, katsotaan monikielisyyden olevan lähtökohtaisesti olevan rikkaus. Yhden organisaatiokielen katsotaan mahdollistavan organisaation pääsyn globaaleille markkinoille sekä takaavan alan parhaiden osaajien rekrytoimisen niin, että paikallisen kielen osaamattomuus ei ole esteenä. Organisaation kielitaidon merkitys on korostunut, mutta esihenkilön ja alaisten välisen viestinnän onnistumiseen vaikuttavat myös monet muut tekijät. Kielitaito ei siis yksinään takaa tiimin sisäistä sujuvaa viestintää. Tutkielma on yksi ensimmäisistä esihenkilöiden kokemukset huomioonottavista narratiivisista tutkielmista kansainvälisen johtamisen saralla. Siitä huolimatta tutkimustulokset ovat linjassa aiempien tutkimusten tulosten kanssa. Esihenkilöiden kokemus oman kielitaidon riittävyydestä vaikuttaa positiivisesti siihen, miten he kokevat selviytyvänsä monikielisyyden aiheuttamista haasteista

    Keterkaitan Latar Belakang Pendidikan Dan Pengalaman Kerja Dengan Kualitas Kinerja Karyawan PT. Bank Syariah Mandiri Cabang Banda Aceh

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    Usaha perbankan adalah salah satu bentuk usaha yang membutuhkan sumber daya manusia yang handal dan memiliki pengetahuan mumpuni di bidang perbankan. Urgensi penelitian ini berhubungan dengan melihat kualitas kinerja yang pegawai berdasarkan latar belakang pendidikan dan pengalaman kerja. Penelitian ini dilakukan di Bank Syariah Mandiri Banda Aceh. Penelitian bertujuan untuk mengetahui keterkaitan dan pengaruh latar belakang pendidikan dan pengalaman kerja terhadap kinerja karyawan pada Bank Syariah Mandiri Banda Aceh. Populasi dalam penelitian ini adalah seluruh karyawan Bank Syariah Mandiri yang berjumlah 97orang. Teknik pengambilan sampel pada penelitian ini yaitu menggunakan stratified random sampling. Hasil penelitian menunjukkan bahwa proses perekrutan pegawai dilakukan secara terbuka oleh BSM Banda Aceh tanpa mempertimbangkan latar belakang pendidikan pelamar. Latar belakang pendidikan tidak berhubungan langsung dengan kinerja pegawai BSM Banda Aceh. Hal yang mendukung peningkatan kinerja pegawai BSM Banda Aceh adalah pengalaman kerja dan pelatihan yang diberikan oleh BSM selama proses pekerjaan dimulai

    Avoin data ei yksin riitä

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    Knowledge support in learning operative organisations

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    The aim of this study is to understand the requirements, critical success factors and outcomes of knowledge support, particularly in learning operative organisations. Initially, the work focused on support of individual employees performing individual work tasks, but it soon became evident that the perspective was too limited. First, it was expanded to cover smaller work units, and later the scope was extended to organisations. This study summarises many years of work, starting in the early 1990s and concluding on present day. It is based on five constructivist case studies, four of which address knowledge support of employees and teams performing light-weight end-assembly tasks, and one which addresses organisational learning and knowledge management in project organisations. The key findings include: Knowledge support system design and development requires system perspective, understanding that the system is an integral part of the work system and the work system may have to be re-engineered to accommodate the support system. User-centered design is essential for a successful knowledge support system, and this approach must include not only reader-users of the system but all the various user groups, particularly the author-users creating and maintaining the support content of the system. Improved organisational flexibility is one of the key goals and observed results of knowledge support systems. But in order to facilitate organisational flexibility, support systems need to be adaptable and tailorable in order to be able to react to rapid changes in the products, markets and the environment. Implementation is a particularly difficult stage of knowledge support system development. In several cases implementation has fully failed or it has had severe side effects. A knowledge support system can act as the technological infrastructure of a learning organisation. But in order to do this, a support system has to capture new knowledge created in the organisation in addition to distributing existing knowledge. While the results of a study consisting of case studies have limited generalisability, the results can be considered mostly valid in the domain of knowledge support of assembly work tasks. The assembly line cases studied had several similar key characteristics. But when it comes to findings concerning knowledge support in learning organisations, one should be more careful. Nevertheless, even those findings were most fascinating and indicate interesting possibilities for further research.reviewe

    Tulvariskien hallinta uusilla teknologioilla

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    Tieteen tori: Luonnonvarariskien hallint

    Impact of Middle Pleistocene (Saalian) glacial lake-outburst floods on the meltwater-drainage pathways in northern central Europe: Insights from 2D numerical flood simulation

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    The terrestrial margins of the Middle Pleistocene ice sheets in northern central Europe were characterised by the formation of extensive ice-dammed lakes, which were controlled by the blockage of spillways by the ice margin. The largest ice-dammed lake had a volume of ∼224 km³ and formed in a late stage of the first Saalian ice advance (MIS 6) in central Germany. The failure of the ice dam in the bedrock-outlet channel triggered a major glacial lake-outburst flood. Flood-related erosional and depositional features include large-scale scours, trench-like channels, streamlined hills, giant bars and run-up deposits, indicating a wide spreading of the outburst flood in an early stage and the incision of trench-like valleys in a later stage. The incision of large valleys in the proximal flood pathway strongly impacted the regional drainage system by providing an efficient drainage network. The trench-like channels initiated by the lake-outburst flood became a crucial part of the ice-marginal drainage and subsequent fluvial system. The reconstructed outlet hydrographs imply peak discharges of 465,000–673,000 m³s −1 . The numerical simulation indicates flow depths of up to 87 m, flow velocities of up to 7 ms −1 , peaks of the bed-shear stress of 2500 Nm −2 and the inundation of large parts of northwestern Germany and the northern Netherlands. The numerical simulation of the outburst flood was conducted on both the modern digital elevation model and on palaeotopographic models, representing the palaeotopography prior to the outburst flood and during maximum flood-related incision, respectively. Distally, the outburst flood probably followed an east-west trending route through northwestern Germany and the central Netherlands into the ice-dammed lake in the southern North Sea Basin. The added water volume might have led to the overspill and drainage of the proglacial lakes in the central Netherlands and the North Sea Lake in a chain reaction, eventually opening an east-west trending meltwater-drainage pathway along the southwestern margin of the decaying ice sheet. © 2019 The Author
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