203 research outputs found

    Analysis of neural networks usage for detection of a new attack in IDS

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    Generally, Intrusion Detection Systems (IDS) work using two methods of identification of attacks: by signatures, that are specific defined elements of the network traffic possible to identify and by anomalies being some deviation form of the network behaviour assumed as normal. Recently, some attempts have been made to implement artificial intelligence method for detection of attacks. Many such implementations use for testing and learning process the data set provided by KDD (Knowledge Discovery and Data Mining Competition) project in 1999. Unfortunately, KDD99 data set was created more than eight years ago and during this time many new attacks have been discovered. In this paper we present our research on updating KDD99 data with traces of attacks of new types. After updating, the data set was used for training and testing MLP (Multi Layer Perceptron) neural network architecture IDS

    Prognozowanie ruchu na drogach krajowych

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    The purpose of this paper is the analysis of traffic load on road pavement and it forecasting, in aspect of designing the reconstruction of roads and pavement strengthening. At present modeling method is a method that offers highest level of traffic load forecasting. Preparation of the digital model of road network and traffic load, which take place on it, allows to eliminate many drawbacks of existing methods of forecasting. For accurate predictions of heavy vehicles by model it is necessary to build the best possible knowledge base of traffic load which is present on the existing road network in particularly based on the largest number of measure spots to both classification and pre-selection of weight classes such as WIM-P.Celem tej pracy jest analiza obciążeń nawierzchni drogowych ruchem oraz jego prognozy, głównie w aspekcie projektowania przebudowy dróg lub wzmacniania nawierzchni. W obecnej chwili metoda modelowa jest metodą, która daje największe możliwości prognozowania ruchu pojazdów. Przygotowanie cyfrowego modelu sieci drogowej oraz ruchu pojazdów, który na niej się odbywa pozwala na wyeliminowanie wielu wad dotychczasowych metod prognozowania. Dla dokładnego prognozowania ruchu pojazdów ciężkich metodą modelową niezbędne jest zbudowanie jak najlepszej bazy wiedzy o ruchu występującym na istniejącej sieci drogowej w szczególności w oparciu o jak największą liczbę punktów umożliwiających zarówno klasyfikację jak i preselekcję wagową klasy np. WIM-P

    Trwałość podbudów z mieszanek mineralno-cementowo-emulsyjnych (MMCE).

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    Cold recycling technology with mineral-cement-emulsion mixtures (MCEM) consists of the milling of worn road asphalt layers and shuffle got crumbled material, called the RAP, with new broken aggregate, cement and asphalt emulsion in stationary devices or by realization of all technological actions on the spot (“in situ”) using the recycler. The aim of the work was the settlement of factors having the influence on durability of bases made of MCEM which were realized by detailed aims such as: the description of structure of MCEM, the assessment of influence of temperature on strength and deformability of samples made of MCEM, the settlement of rheological properties by combined stiffness modulus and loss angle, the assessment of fatigue durability the of samples of the MMCE, the assessment of resistance for low temperature cracking (the TSRST), the analysis and interpretation of surveys in fieldworks (the FWD, the Benkelman’s beam). The main issue of investigations is the application to the dimensioning of pavement construction with base made of MCEM.Technologia recyklingu na zimno z zastosowaniem mieszanek mineralno-cementowo-emulsyjnych polega na frezowaniu zniszczonych drogowych warstw asfaltowych i wymieszaniu uzyskanego rozdrobnionego materiału, zwanego destruktem, z kruszywem łamanym, cementem i emulsją asfaltową w urządzeniach stacjonarnych lub na wykonaniu wszystkich czynności technologicznych na miejscu z zastosowaniem np. recyklera. Celem pracy było ustalenie czynników mających wpływ na trwałość podbudów z MMCE, które osiągnięto poprzez realizację celów szczegółowych takich jak m.in.: opisanie struktury MMCE, ocenę wpływu temperatury na wytrzymałość i odkształcalność próbek z MMCE, ustalenie własności reologicznych przez określenie zespolonego modułu sztywności i kąta przesunięcia fazowego, ocenę trwałości zmęczeniowej próbek MMCE, ocenę odporności na pękanie niskotemperaturowe (TSRST) oraz analizę wyników badań terenowych (FWD, belka Benkelmana). Rezultatem pracy jest aplikacja wyników badań do wymiarowania konstrukcji nawierzchni o podbudowie z MMCE

    Cechy mechaniczne matryc cementowych i cementowo-asfaltowych z dodatkiem miału gumowego

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    Cement matrices are known from concrete testing. Cement-asphalt matrices made of cement and asphalt emulsion are used in mineral-cement-emulsion mixes (MCEM). The matric strength in MCEM mixtures has not been studied so far. Cement-asphalt matrices with 0/1 mm rubber powder are proposed by the author for use in the MCEM [3, 26]. In this paper the results of the investigation of the mechanical properties of matrices are presented for comparative purposes and for the preliminary evaluation of their suitability for MCEM. The following tests were made: indirect tensile strength, bending strength, compressive strength and rigidity modules in NAT and 4 PB-PR.Matryce cementowe znane są dotychczas z badań betonów. Matryce cementowo-asfaltowe z zaczynu cementowego i emulsji asfaltowej są stosowane w mieszankach mineralno-cementowo-emulsyjnych (MMCE). Wytrzymałość matrycy w mieszankach MMCE nie była dotychczas badana. Matryce cementowo-asfaltowe z dodatkiem miału gumowego o uziarnieniu 0/1 mm proponowane są przez autora do stosowania w MMCE [3, 26]. W artykule zamieszczono wyniki badania cech mechanicznych wymienionych matryc do celów porównawczych oraz do wstępnej oceny ich przydatności do podbudów z MMCE. Wykonano badania wytrzymałości na pośrednie rozciąganie, wytrzymałości na ściskanie oraz modułów sztywności metodą NAT i 4 PB-PR

    Przyrządowe i bezprzyrządowe udrażnianie dróg oddechowych w stanach nagłego zagrożenia zdrowotnego.

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    Instrumental and unmanned airway deprivation in the states of sudden health risk The following work presents issues in the field of non-instrumental airway and instrumental clearance. The work describes the methods of unprovoked airway and apparatus with the use of available equipment. The definition of the emergency health condition is also described and which procedures can be performed by the paramedic. The state of immediate health risk often leads to immediate procedures to save human life

    Water quality of urban water bodies : a threat for amphibians?

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    Most studies on the effects of water quality on amphibians concern experimental conditions. The main aim of our study was to determine whether the quality of water bodies in urban environment may be a factor leading to local extinction of some amphibian species. We investigated the current amphibian richness in Kraków water bodies and the water quality of these water bodies. We compared our results with available historical data on amphibian richness in Kraków and we determined the number of amphibian species local extinction for each water body. Then, we compared water bodies with low amphibian extinction rates to water bodies with high amphibian extinction rates in respect to ten water quality chemical indicators. We found that the values of most chemical indicators were higher in water bodies with high amphibian extinction rates. The values of magnesium and chloride ion concentration, as well as conductivity appeared to differ the most between these two types of water bodies which is connected mainly with spring run-off into the water bodies. The results of this study demonstrate that water pollution may lead to local extinction of amphibian species

    Duszpasterstwo wśród młodzieży w prowincjach Zakonu Braci Mniejszych w Polsce

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    In the five provinces of the Order of Friars Minor in Poland the Franciscan youth ministry is realized in different forms and according to various concepts arising from the historical conditions as well as from reading the signs of our times in the Church. Each of the provinces realizes its own project of pastoral activity among young people. This article presents short characteristics of the Franciscan youth groups gathering mainly young people attending high schools. After presentation of the groups, taking into account the selected conclusions and postulates that appear in the Order’s document of 2002 entitled “Directions of Ministry of Vocations. Come and See”, and referring to The Preparatory Document for the 15th Ordinary General Assembly of Synod of Bishops on “Youth, Faith and Vocational Discernment” the most important tasks and challenges these groups are facing have been described

    Mieszanki mineralno-cementowo-emulsyjne (MMCE) modyfikowane miałem gumowym

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    MCE mixtures fortified with fine rubber were the subject of research in laboratory tests in Lublin University of Technology. As a basic literature review shows, an amount of fine rubber in mixtures with cement in MCEM should be 2%, 4% and 6% of the aggregate. The mixtures were designed planned and prepared as samples for tests assessing the fulfillment of the requirements contained in the Manual [9]. Analysis of the results allows to assess the usefulness of fine rubber in MCE mixtures and is a basis for further detailed studies that are aimed at setting new quantitative requirements, going beyond the requirements included in the Manual.Mieszanki MMCE z dodatkiem miału gumowego były przedmiotem rozpoznawczych badań laboratoryjnych przeprowadzonych w Politechnice Lubelskiej. Ustalono wstępnie na podstawie przeglądu literatury, dotyczącej stosowania miału gumowego do mieszanek związanych cementem, jego dodatek w ilości 2%, 4% i 6% w stosunku do kruszywa. Zaprojektowano mieszanki a następnie wykonano próbki i przebadano je pod kątem spełnienia wymagań w zawartych w Instrukcji [9]. Analiza uzyskanych wyników pozwala stwierdzić przydatność miału gumowego w mieszankach MCE i stanowi postawę do opracowana dalszych szczegółowych prac w celu ustalenia nowych wymagań ilościowych wykraczających poza wymagania zawarte w Instrukcji

    Life quality of women with breast cancer after mastectomy or breast conserving therapy treated with adjuvant chemotherapy

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    Introduction Breast cancer is the most frequent malignant neoplasm in women. The evaluation of the quality of life has become a treatment parameter as important as survival. Objective The aim of the study was evaluation of the quality of life among women treated for breast cancer who underwent surgical procedures using two alternative methods: mastectomy or breast conserving therapy (BCT). Material and Methods 85 patients treated with BCT and 94 patients who underwent mastectomy were evaluated. Standard questionnaires for the evaluation of the quality of life of cancer patients were used – QLQ-C30 (Quality of life questionnaire – core 30) with QLQ-BR23 (Breast Cancer Module). The Hospital Anxiety and Depression Scale was also applied. Results Social and demographic factors (age, education, marital status) influenced the evaluation of the life quality among both groups. Obtained data was also dependent on the type of surgical procedure and chemical treatment. The level of anxiety and depression also influenced the general quality of life and was higher in women who underwent mastectomy. Conclusions Quality of life plays an important role in the treatment process. Women after BCT declared a higher quality of life compared to patients after mastectomy. The process of making the decision concerning the planned surgical procedure should take into consideration the influence of the intervention on the quality of patients’ future life

    Salvage brachytherapy in combination with interstitial hyperthermia for locally recurrent prostate carcinoma following external beam radiation therapy: a prospective phase II study.

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    Optimal treatment for patients with only local prostate cancer recurrence after external beam radiation therapy (EBRT) failure remains unclear. Possible curative treatments are radical prostatectomy, cryosurgery, and brachytherapy. Several single institution series proved that high-dose-rate brachytherapy (HDRBT) and pulsed-dose-rate brachytherapy (PDRBT) are reasonable options for this group of patients with acceptable levels of genitourinary and gastrointestinal toxicity. A standard dose prescription and scheme have not been established yet, and the literature presents a wide range of fractionation protocols. Furthermore, hyperthermia has shown the potential to enhance the efficacy of re-irradiation. Consequently, a prospective trial is urgently needed to attain clear structured prospective data regarding the efficacy of salvage brachytherapy with adjuvant hyperthermia for locally recurrent prostate cancer. The purpose of this report is to introduce a new prospective phase II trial that would meet this need. The primary aim of this prospective phase II study combining Iridium-192 brachytherapy with interstitial hyperthermia (IHT) is to analyze toxicity of the combined treatment; a secondary aim is to define the efficacy (bNED, DFS, OS) of salvage brachytherapy. The dose prescribed to PTV will be 30 Gy in 3 fractions for HDRBT, and 60 Gy in 2 fractions for PDRBT. During IHT, the prostate will be heated to the range of 40-47°C for 60 minutes prior to brachytherapy dose delivery. The protocol plans for treatment of 77 patients
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