30 research outputs found

    A novel text classification problem and its solution

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    A new text categorization problem is introduced. As in the classical problem, there is a set of documents and a set of categories. However, in addition to being assigned to a specific category, each document belongs to a certain sequence of documents, referred to as a case. It is assumed that all documents in the same case belong to the same category. An example may be a set of news articles. Their categories may be sport, politics, entertainment, etc. In each category there exist cases, i.e., sequences of documents describing, for example evolution of some events. The problem considered is how to classify a document to a proper category and a proper case within this category. In the paper we formalize the problem and discuss two approaches to its solution

    Japanese philosophy of thinking and action, which essence is improving

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    Kaizen, Japanese philosophy of thinking and action is the most essential concept of Japanese management and a key to competitive success. It lets understand differences between a Japanese and west approach towards management. It was used for the first time in Toyota Company. The aim of the article is to present features of innovation and Kaizen, as well as a concept of lean management applied in organizations in order to eliminate losses

    Causes and preventing of mobbingin the organization − research in the urban transport company

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    The article presents theory and research concerning mobbing. The research was conducted in the urban transport company which is one of the biggest work places in Wrocław. Thirteen managers and forty four employees took part in this research. The study had an illustrative, not a representative, character, since such a number of employees is sufficient to establish, whether mobbing is a standard in the organizational culture of an enterprise

    Hygiene and motivation factors in the organization – research in the urban transport company

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    The article describes the theory and identification of the system of motivating of employees in the organization on the base of Frederick Herzberg theory. Thirteen managers and forty four workers from the urban transport company in Wrocław took part in the research. The aim of the study was to check if factors of hygiene and motivation were fulfiled. The study was conducted using the questionnaire form containing questions drawn up on the base for specialist literature concerning the subject of the research

    Reguły wywierania wpływu – badanie menedżerów w organizacji

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    The article presents theory and research concerning six rules of exerting influence such as: the rule of the reciprocity, the rule of the commitment and the consequence, the rule of social evidence of the rightness, the rule of liking and the sympathy, the rule of the authority and the rule of the unavailability. Thirteen managers from the urban transport company, one of the biggest work places in Wrocław, took part in the research. The aim of the study was to examine the managers’ knowledge of the aforementioned rules

    Expectations of employees having a higher education in view of the system of motivating in the organization

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    The article presents the theory and research concerning the system of motivating. One hundred and twenty-five working students from Wrocław University of Technology took part in the research. They had already had a university diploma and continued learning on master’s studies. The aim of the research was to measure the expectation of the system of motivating in an organization. It was conducted with the questionnaire form containing relevant questions based on specialist literature

    Laboratory tests newly drawn up non-clay, glycol-potassium drilling mud with the new polymer PT-52 intended to drill clay rocks

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    Tyt. z nagłówka.Bibliogr. s. [778].Examinations are being conducted on the basis of the polyglycol mud with using new PT-52 polymer, as the incriminating evidence chalk is applied. Examinations include the test of the lubricity, of clay beams, immu-noassay temperature and measurement of standard rheological parameters of the mud. Experience is being conducted on two muds, first with using the incriminating evidence (chalks) and of idle mud. Using two muds will let us determine the influence of the incriminating evidence on the quality of the prepared mud.Badaniom poddano płuczkę poliglikolową, wykorzystano nowy polimer PT-52, jako materiał obciążający stosowano kredę. Badania obejmują test smarności belek iłowych, test odporności temperaturowej oraz pomiar standardowych parametrów reologicznych płuczki. Doświadczenia prowadzone są na dwóch płuczkach: płuczki przygotowanej z wykorzystaniem materiału obciążającego (kredy) oraz płuczki nieobciążonej. Użycie dwóch płuczek pozwoli określić wpływ materiału obciążającego na jakość sporządzonej płuczki.Dostępny również w formie drukowanej.SŁOWA KLUCZOWE: polimer PT-52, poliglikol, płuczki wiertnicze. KEYWORDS: polyglycol, polymer PT-52, drilling muds

    Flokulacja suspensji ilastych i płuczek wiertniczych z zastosowaniem nowo opracowanych flokulantów kationowych

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    Tyt. z nagłówka.Bibliografia s. 433-[434].Dostępny również w formie drukowanej.ABSTRACT: The authors present the results of lab tests on new synthetic cationic flocculants PT-floc-201107 which are used to reduce volume of bentonite suspensions and drilling mud. The optical method was used to investigate the mud flocculation process and moving time of the phase separation boundary. The lab tests indicated that the PT-floc-201107 polymers are suitable for phase separation of drilling mud and aqueous suspensions of silty minerals which are rather difficult to separate. STRESZCZENIE: W niniejszej pracy przedstawiono wyniki badań właściwości flokulacyjnych nowych, syntetycznych polimerów kationowych, oznaczonych jako PT-floc-201107, w stosunku do suspensji bentonitowych i płuczek wiertniczych. Badanie flokulacji przeprowadzono wykorzystując metodę optyczną polegającą na pomiarze czasu przesuwania się granicy rozdziału faz. Na podstawie wyników badań można sądzić, że polimery PT-floc-201107 mogą znaleźć zastosowanie do separacji faz w trudnych do rozdziału wodnych suspensjach minerałów ilastych i płuczkach wiertniczych. SŁOWA KLUCZOWE: flokulacja, flokulanty kationowe, płuczki wiertnicze. KEYWORDS: drilling muds, flocculation, cationic flocculants

    Removal of the filter cake created by the mud for hydrogeological drilling by the method of acidizing

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    Tyt. z nagłówka.Bibliogr. s. [133].The article describes issue of a mud for hydrogeological wells and a method of removing sediment accumulated on the well filter and in the near-well zone after borehole drilling. Developed fluid formula is based on both primary criterion of selecting the best technological parameters of the mud and restrictive ecological standards. Because of the contact between the mud and the underground water (which is the main source of potable water), a need to select appropriate components such as biodegradable polymers (Guar-Gum, XC) and other organic compounds that are not causing harmful environmental effects has arisen. Furthermore, developed formula allows for relatively easy removal of mud remains from the well filter and near-well zone, inereasing well efficiency. The paper includes research findings of sediment acidizing by the procedure called "soft acidizing". Any information about practical application of this procedure can hardly be found in specialized literature. Therefore, concentrations and variations of the acetic, hydrochloric and citric acids were subject of research and analysis.Dostępny również w formie drukowanej.KEYWORDS: acidizing, filter cake, drilling fluids

    Badania wpływu nowo opracowanych płuczek kationowo-skrobiowych na zmianę przepuszczalności ośrodka przy użyciu filtrów ceramicznych

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    Tyt. nagł.Bibliografia s. 632.Dostępny także w formie drukowanej.STRESZCZENIE: W niniejszym artykule przedstawiono wyniki badań wpływu nowoopracowanych płuczek wiertniczych z dodatkiem polimerów kationowych, przeznaczonych do dowiercania złóż węglowodorów, na zmiany przepuszczalności ośrodka. Badania przeprowadzono w symulowanych warunkach otworowych, z wykorzystaniem dynamicznej prasy filtracyjnej HTHP. Jako symulatora skały użyto filtrów ceramicznych o znanej przepuszczalności. Wyniki badań wykazały, że nowo opracowane płuczki kationowo-skrobiowe w znacznie mniejszym stopniu uszkadzają przepuszczalność ośrodka niż płuczka do dowiercania, stosowana przez jeden z krajowych serwisów płuczkowych. Ze względu na niewielką ilość składników użytych do sporządzenia płuczek, charakteryzują się one możliwością łatwej regulacji parametrów technologicznych i stosunkowo niską ceną. Dodatkowe badania potwierdziły ponadto skuteczne działanie inhibitujące opracowanych płuczek. SŁOWA KLUCZOWE: płuczki kationowo-skrobiowe, płuczki do dowiercania, przepuszczalność. ABSTRACT: In this paper results of investigations of new drill-in muds with cationic polymers are presented. Rheological properties and influence onto permeability of rocks were research. Investigations were moved in simulated downhole conditions. In tests dynamic HPHT filter press and ceramic filters (as a rock simulator) were used. Research shoved, that new cationic-starch drill-in muds couse smaller permeability damage than mud used in Polish industry. KEYWORDS: cationic-starch muds, drill-in muds, permeability
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