Wyniki wyszukiwania - Biblioteka Nauki

1

Porównanie optyczno-elektronicznych metod pomiaru granulacji

100%

Kamiński S. , Kamińska D.

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tom T. 12, nr 2-3

85-93

PL

W niniejszej pracy opisano urządzenie laboratoryjne pod nazwą Infrared Particle Sizer, dalej zwane IPS, które może być stosowane do szybkich pomiarów granulacji w czasie procesu produkcyjnego. Metodę pomiaru wykorzystywaną w analizatorze IPS porównano z innymi metodami optyczno-elektronicznymi. Przytoczone przykłady zastosowań prowadzą do wniosku, że urządzenie IPS ma dobre parametry techniczne i pozwala na rzeczywisty pomiar rozmiarów cząstek w szerokim zakresie. Dotyczy to cząstek materiałów nieorganicznych i organicznych.

EN

In this article the laboratory instrument called Infrared Particles Sizer (IPS) is described. The instrument can be applied to fast measurement of granulation, needed in production process. Measurement method that is used in IPS analyser is compared to other optical-electronic methods. Mentioned examples of application allow to draw conclusion that IPS instrument has good technical parameters and gives actual results of particles sizes in wide measuring range. This concerns organic and inorganic substances.

2

Emotion recognition from natural speech – emotional profiles

100%

Sapiński T. , Kamińska D.

Logistyka

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2015

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tom nr 4

9712--9721, CD3

EN

Emotion recognition system can improve customer service especially in the case of call centers. Knowledge of the emotional state of the speaker would allow the operator to adapt better and generally improve cooperation. Research in emotion recognition focuses primarily on speech analysis. Emotion classification algorithms designed for real-world application must be able to interpret the emotional content of an utterance or dialog beyond various limitation i.e. speaker, context, personality or culture. This paper presents research on emotion recognition system of spontaneous voice stream based on a multimodal classifier. Experiments were carried out basing on natural speech characterized by seven emotional states. The process of multimodal classification was based on Plutchik’s theory of emotion and emotional profiles.

3

Test wydajności współczynników percepcyjnych w kontekscie rozpoznawania emocji

100%

Sapiński T. , Kamińska D.

Logistyka

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2015

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tom nr 4

9702--9711, CD3

PL

W artykule przedstawiono wyniki doświadczeń rozpoznawania emocji na podstawie sygnału mowy z wykorzystaniem współczynników percepcyjnych. Badania rozpoczęła analiza współczynników MFCC, następnie pulę tę poszerzono o współczynniki, takie jak BFCC, HFCC, PLP, RPLP oraz RASTA PLP, szeroko stosowane w badaniach nad rozpoznawaniem mowy, natomiast pomijane w rozpoznawaniu emocji. Analizę przeprowadzono dla dwóch różnych korpusów: bazy mowy spontanicznej i odegranej. Przy użyciu klasyfikatora k-NN, wybrano grupę współczynników najlepiej reprezentujących stany emocjonalne.

EN

The following paper presents parameterization of emotional speech using perceptual coefficients as well as a comparison of Mel Frequency Cepstral Coefficients (MFCC), Bark Frequency Cepstral Coefficients (BFCC), Perceptual Linear Prediction Coefficients (PLP) and Revised Perceptual Linear Prediction Coefficients (RPLP). Analysis was performed on two different Polish databases: acted out and spontaneous speech corpora. Emotion classification was performed using k-NN algorithm.

4

Badanie uziarnienia materiałów mineralnych 0,5 jim-100 mm

100%

Kamiński S. , Kamińska D.

Prace Naukowe Instytutu Górnictwa Politechniki Wrocławskiej. Studia i Materiały

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2009

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tom Vol. 125, nr 35

113-120

PL

Opracowano unikatowy system składający się z kilku analizatorów optyczno-elektronicznych z zastosowaną metodą Elsieve do pomiaru krzywej uziarnienia. W zależności od potrzeb każdy z analizatorów może mierzyć oddzielnie lub przy wykorzystaniu odpowiedniego oprogramowania uzupełniać zespół sit pomiarowych. Zespoły analizatorów przeznaczonych do pomiaru różnych frakcji uziarnienia materiałów mineralnych można łączyć w dowolny układ, a ich wyniki sumować. Przedstawione badania są zgodne z normą PN-EN ISO 14688-2:2006 - Badania geotechniczne. Oznaczanie i klasyfikowanie gruntów [5].

EN

Nowadays there are available technical possibilities to avoid manually difficult and work-consuming measurements of soil grain composition (e.g. sieve or sedimentation analysis). Such measurements can be replaced by optical-electronic instruments called EIsieve that are more common in Poland. The instruments are used for determination of grain-size distribution of gains and particles with diameter form 0.5 to 100 mm. Additionally there is possibility to determine shape of grains by 3D measurements and other graining parameters. The measuring system can consist of any number of instruments, connected with recording computer. Every computer of any measuring instruments is connected with the server. The created network allows to save measuring results at computer that works with particular instrument and at other computers. Such a system is used for measurements of soil and other geomaterials grain composition in laboratory at Institute of Hydrogeology and Engineering Geology, Faculty of Geology, University of Warsaw.

5

Pomiar granulacji surowców w mineralurgii przy użyciu nowoczesnych elektronicznych urządzeń pomiarowych

100%

Kamiński S. , Kamińska D.

Górnictwo i Geoinżynieria

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2009

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tom R. 33, z. 4

135-140

PL

W pracy przedstawiono zespół urządzeń pomiarowych, przy pomocy których można określić krzywą uziarnienia od 0,5 mim do 100 mm. Krzywa uziarnienia może się składać z 45 punktów pomiarowych i wstępnie jest wyznaczona optycznie dla wielu tysięcy wirtualnych sit, które są dokładniejsze niż sita mechaniczne i nie można ich zepsuć. Zespół urządzeń może określić wiele wskaźników i właściwości normowych według wielu norm dla kruszyw.

EN

In this paper authors want to present unique measuring system which allow to determin of grain-size distribution of grains and particles with diameter form 0.5 mim to 100 mm. Grain-size distribution may consist of 45 measurement points. Tentatively it is determine for couple thousand of virtual sieves. This sives are indistuctable and much more strict than mechanic ones. Measuring system network can assign many ratings and norm properties according to European standard for aggregate.

6

Recognition of Human Emotion from a Speech Signal Based on Plutchik's Model

100%

Kamińska D. , Pelikant A.

International Journal of Electronics and Telecommunications

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2012

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tom Vol. 58, No. 2

165-170

EN

Machine recognition of human emotional states is an essential part in improving man-machine interaction. During expressive speech the voice conveys semantic message as well as the information about emotional state of the speaker. The pitch contour is one of the most significant properties of speech, which is affected by the emotional state. Therefore pitch features have been commonly used in systems for automatic emotion detection. In this work different intensities of emotions and their influence on pitch features have been studied. This understanding is important to develop such a system. Intensities of emotions are presented on Plutchik's cone-shaped 3D model. The k Nearest Neighbor algorithm has been used for classification. The classification has been divided into two parts. First, the primary emotion has been detected, then its intensity has been specified. The results show that the recognition accuracy of the system is over 50% for primary emotions, and over 70% for its intensities.

7

Polish emotional speech recognition based on the committee of classifiers

100%

Kamińska D. , Sapiński T.

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tom R. 93, nr 6

101--105

EN

This article presents the novel method for emotion recognition from polish speech. We compared two different databases: spontaneous and acted out speech. For the purpose of this research we gathered a set of audio samples with emotional information, which serve as input database. Multiple Classifier Systems were used for classification, with commonly used speech descriptors and different groups of perceptual coefficients as features extracted from audio samples.

PL

Niniejsza praca dotyczy rozpoznawania stanów emocjonalnych na podstawie głosu. W artykule porównaliśmy mowę spontaniczną z mową odegraną. Na potrzeby zrealizowanych badań zgromadzone zostały emocjonalne nagrania audio, stanowiące kompleksową bazę wejściową. Przedstawiamy nowatorski sposób klasyfikacji emocji wykorzystujący komitety klasyfikujące, stosując do opisu emocji powszechnie używane deskryptory sygnału mowy oraz percepcyjne współczynniki hybrydowe.

8

Porównanie metod pomiaru granulacji materiałów ziarnistych

100%

Kamiński S. , Kamińska D.

Chemik

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2012

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tom Vol. 66, nr 5

406-411

PL

W pracy zostały przedstawione niektóre problemy "laserówek" - urządzeń do pomiaru granulacji wykorzystujących metodę dyfrakcji laserowej. Te problemy porównano z nowymi metodami pomiarowymi wykorzystującymi najnowsze sposoby optyczno- elektronicznego cyfrowego pomiaru.

EN

In this paper authors present some problems of Laser devices - instruments for size analysis that use laser diffraction method. These problems are compared to new measuring methods that use the newest optical-electronic digital measurement.

9

Charakterystyki behawioralne w biometrii

80%

Kamińska D. , Sapiński T. , Pelikant A.

Elektronika : konstrukcje, technologie, zastosowania

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2015

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tom Vol. 56, nr 10

38-40

PL

W artykule omówiono sposoby pozyskiwania, przetwarzania i reprezentacji sygnałów audio w celu prowadzenia dalszych analiz związanych zarówno z semantyką wypowiedzi, jak również z cechami behawioralnymi mówcy. Przyjęto, że analiza danych powinna być prowadzona możliwie blisko miejsca ich przechowywania, np. w komercyjnych serwerach baz danych z wykorzystaniem enkapsulacji klas obiektowych do elementów programistycznych relacyjnego serwera. Poza wykorzystaniem reprezentacji sygnału za pomocą wektorów wyrażonych w skalach cepstralnych, ważnym elementem analizy jest zastosowanie algorytmów dopasowania strumieni wektorów danych – Spring DTW. W przypadku analizy stanów emocjonalnych do wzmocnienia procesu klasyfikacji zastosowano komitety klasyfikatorów działających na różnych zestawach atrybutów, a analizę odniesiono do modelu Plutchika.

EN

The article describes methods of acquisition, processing and representation of audio signals for the purpose of further analysis associated with both the semantics of expression, as well as behavioral characteristics of the speaker. It is assumed that the data analysis should be carried out as close to the place of storage, eg. in commercial database servers using the encapsulation of object classes to relational server software components. In addition to using a representation of a signal as vectors in cepstral scale, an important part of the analysis is to apply matching algorithms - Spring DTW. In order to enhance the analysis of emotional states classification committees consiting of classifiers operating on different sets of attributes were used. Emotion detection was based on Plutchik’s wheel.

10

Porównanie wydajności współczynników perceptualnych na potrzeby automatycznego rozpoznawania emocji w sygnale mowy

80%

Kamińska D. , Sapiński T. , Niewiadomy D. , Pelikant A.

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tom Vol. 34, nr 2B

59--66

PL

Przedmiotem niniejszego artykułu jest parametryzacja sygnału mowy emocjonalnej przy użyciu współczynników preceptualnych. Dokonano porównania wydajności współczynników MFCC z współczynnikami HFCC oraz przynależnych im parametrów dynamicznych. Na podstawie bazy mowy emocjonalnej oceniono skuteczność wybranych współczynników.

EN

The following paper presents parameterization of emotional speech using perceptual coefficients. The comparison of MFCC to HFCC and adherent dynamic parameters is presented. Basing on emotional speech database efficiency of used coefficients was evaluated.

11

Badanie transportu składnika w układach symulujących układy biomedyczne

71%

Adach A. , Pawlak A. , Zera A. , Kaczorowska B. , Kamińska D.

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tom Nr 1

8--9

PL

Podstawowym mechanizmem transportu masy w układach biomedycznych jest dyfuzja w ciałach porowatych lub cieczy, transport przez błony selektywne. W pracy doświadczalnie zbadano szybkość transportu składnika wykorzystując skonstruowany zestaw sekwencyjny, będący modyfikacją komory dyfuzyjnej i metody warstwy półnieskończonej. Substancją aktywną była czerwień koszenilowa A. Stosowano takie media jak: hydrożele, syntetyczna ślina, roztwór cieczy lepkiej imituj ący śluz (roztwory soli sodowej karboksymetylocelulozy). Jako podkładki wykorzystywano membrany Pałł Supor 100 Membrane Filters PES (0,1 μm). Wyznaczono gęstości strumienia składnika, współczynniki filtracji oraz wartości zastępczego współczynnika dyfuzji.

EN

The basic mechanism of mass transfer in biomedical systems is diffusion in porous bodies or liquids and transport by selective membranes. An originally designed system with the sequential unit as a main element, being the modification of diffusion chamber, was constructed. An active substance applied was Cochineal Red A, whereas hydrogels, synthetic saliva and solution of viscous liquid imitating mucus (solutions of sodium carboxyme-thyl cellulose) were used as media. Pall Supor 100 Membrane Filters PES (0.1 μm) were employed as rootstocks. The drug flux, permeation coefficient and effective diffusion coefficients were calculated. Keywords: diffusion, drug release, substance transfer, diffusion chamber

12

Physiotherapy in women after breast cancer treatment – review

61%

Skutnik K. , Ustymowicz W. , Zubrewicz K. , Zińczuk J. , Kamińska D. , Pryczynicz A.

Progress in Health Sciences

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2019

|

tom 1

162-168

EN

Introduction: Breast cancer is the most common malignant tumor in women in the Polish region. Surgery is a basic method of breast cancer treatment. Surgery often carries a lot of unwanted changes as follows: limitation of mobility in the shoulder joint on the operated side, secondary lymphoedema, post mastectomy pain syndrome (PMPS), reduction of muscle strength or disorders in body posture. Therefore, the implementation of physiotherapeutic activities that are designed to prevent and eliminate postoperative complications seems very important. The main aim of this work was to present physiotherapeutic management in women after mastectomy based on the analysis of available literature. The physiotherapeutic process can be divided into three periods: early hospital, early ambulatory and the late ambulatory period. In the first period, active slow exercises, self-support of the upper limb on the operated side and breathing exercises on the thoracic track are used to prevent circulatory disorders, pulmonary complications, and edema. The early ambulatory period includes corrective exercises, general improvement exercises, stretching and learning of automatic massage of the upper limb of the operated side. The last period should be enriched by recreational methods of physical activity such as swimming, cycling or Nordic walking to maintain physical fitness, proper mobility of the shoulder girdle and improve the patient's psychophysical state. It is very important the patient regular continues the rehabilitation program after curing of breast cancer as well. In the case of secondary lymphoedema of the upper limb, comprehensive rehabilitation physiotherapy is used, consisting of manual lymphatic drainage, healing exercises, compression therapy, and skin care. Conclusions: Physiotherapy in women after breast cancer surgery is a complex and long-term process. Physiotherapeutic methods are effective in treating complications after surgery of breast cancer surgery. It is necessary to constantly update the physio-therapy knowledge in women after breast cancer surgery.

13

Immunohistochemical Fascin-1 expression correlate with lymph node and distant metastases in pancreatic ductal adenocarcinoma

51%

Pryczynicz A. , Nizioł M. , Miniewska K. , Kamińska D. , Kuczyńska P. , Zińczuk J. , Zaręba K. , Guzińska-Ustymowicz K.

Progress in Health Sciences

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2018

|

tom 8(2)

124-130

EN

Introduction: Pancreatic cancer is characterized by its aggressiveness and poor prognosis. Furthermore, mortality is one of the highest among all types of cancers. It has been observed that the expression of Fascin-1 (the actin-bundling protein which enables the motility of cells) is higher in cancer cells and is correlated with invasiveness and metastasis. Purpose: To investigate the expression of Fascin-1 in histopathological specimens from patients treated for pancreatic cancer and its relationship with histopathological parameters. Materials and methods: The study was performed on a group of 52 patients diagnosed with pancreatic cancer in the Medical University of Bialystok Clinical Hospital. The expression of Fascin-1 was evaluated in tissue samples using the immunohistochemical method and was rated as “present” or “absent”. The analysis of histopathological parameters was performed in correlation with Fascin-1 expression. Results: Fascin-1 expression was observed in the cytoplasm of cancer cells in 42/52 cases (80.8%). Fascin-1 expression occurred more frequently among patients with lymph node metastases (92.6%) than without this type of metastases (68%) (p=0.024). Likewise, the expression of the investigated protein was observed more often with the presence of distant metastases (100%) than without those metastases (74.4%) (p=0.043). There were no statistically significant differences about age, sex, histological type of cancer, grade of histological differentiation, desmoplasia, inflammatory infiltration, foci of hemorrhage, necrosis, and MVD. Conclusion: The expression of Fasicn-1 is correlated with the presence of metastases and can be a useful marker of pancreatic cancer involvement.

14

Symptoms of colorectal cancer contributes to its localization and advancement

51%

Nizioł M. , Kostrzewska B. , Kamińska D. , Domurat M. , Zińczuk J. , Misiura M. , Guzińska-Ustymowicz K. , Pryczynicz A.

Progress in Health Sciences

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2019

|

tom 1

76-82

EN

Introduction: Colorectal cancer is one of the most common cancers occurring in Poland. Unfortunately, this cancer is most often diagnosed at the time of great advancement. This is caused by the appearance of specific symptoms only in the late stages of cancer. Also, such low detection of early stages of adenocarcinoma may be caused by disregarding of slight symptoms. Purpose: To analyse symptoms in patients with colorectal cancer and correlate with chosen clinical-pathological parameters. Materials and methods: The study group consisted of 46 patients diagnosed with colorectal cancer. Information on symptoms associated with cancer (subjective and objective) have been selected from patients' medical history. The presence of these symptoms was correlated with the age and sex of patients, tumor location, histological type of cancer, grade of histological malignancy (G), stage of tumor (T stage), presence of lymph node metastases and distant metastases. Results: It has been shown that the presence of pain complaints described by the patient are associated with the occurrence of cancer in the colon. The painfulness and pathological resistance diagnosed by the physician are more often associated with cancer located in the colon. In the case of tumors located in the rectum, faecal admixtures appear more frequently. It has also been shown that the presence of admixtures of blood and mucus in the stool is associated with more advanced local tumors, infiltrating pericolorectal tissues (T3 + T4). Conclusions: Familiarity with clinical symptoms of colorectal cancer could make patients more sensitive to more often screening for cancer. Analysis of these symptoms could indicate to the physician the location or stage of the cancer.

15

PALS investigations of free volumes thermal expansion of J-PET plastic scintillator synthesized in polystyrene matrix

31%

Wieczorek A. , Zgardzińska B. , Jasińska B. , Gorgol M. , Bednarski T. , Białas P. , Czerwiński E. , Gajos A. , Kamińska D. , Kapłon Ł. , Kochanowski A. , Korcyl G. , Kowalski P. , Kozik T. , Krzemień W. , Kubicz E. , Niedźwiecki S. , Pałka M. , Raczyński L. , Rudy Z. , Rundel O. , Sharma N. G. , Silarski M. , Silarski A. , Strzelecki A. , Wiślicki W. , Zieliński M. , Moskal P.

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tom Vol. 60, No. 4, part 1

777--781

EN

The polystyrene doped with 2,5-diphenyloxazole as a primary fluor and 2-(4-styrylphenyl)benzoxazole as a wavelength shifter prepared as a plastic scintillator was investigated using positronium probe in wide range of temperatures from 123 to 423 K. Three structural transitions at 260, 283, and 370 K were found in the material. In the o-Ps intensity dependence on temperature, the significant hysteresis is observed. Heated to 370 K, the material exhibits the o-Ps intensity variations in time.

16

Reconstruction of hit time and hit position of annihilation quanta in the J-PET detector using the Mahalanobis distance

31%

Sharma N. G. , Silarski M. , Bednarski T. , Białas P. , Czerwiński E. , Gajos A. , Gorgol M. , Jasińska B. , Kamińska D. , Kapłon Ł. , Korcyl G. , Kowalski P. , Kozik T. , Krzemień W. , Kubicz E. , Niedźwiecki S. , Pałka M. , Raczyński L. , Rudy Z. , Rundel O. , Słomski A. , Strzelecki A. , Wieczorek A. , Wiślicki W. , Zieliński M. , Zgardzińska B. , Moskal P.

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tom Vol. 60, No. 4, part 1

765--769

EN

The J-PET detector being developed at the Jagiellonian University is a positron emission tomograph composed of the long strips of polymer scintillators. At the same time, it is a detector system that will be used for studies of the decays of positronium atoms. The shape of photomultiplier signals depends on the hit time and hit position of the gamma quantum. In order to take advantage of this fact, a dedicated sampling front-end electronics that enables to sample signals in voltage domain with the time precision of about 20 ps and novel reconstruction method based on the comparison of examined signal with the model signals stored in the library has been developed. As a measure of the similarity, we use the Mahalanobis distance. The achievable position and time resolution depend on the number and values of the threshold levels at which the signal is sampled. A reconstruction method as well as preliminary results are presented and discussed.

17

Searches for discrete symmetries violation in ortho-positronium decay using the J-PET detector

31%

Kamińska D. , Gajos A. , Czerwiński E. , Bednarski T. , Białas P. , Gorgol M. , Jasińska B. , Kapłon Ł. , Korcyl G. , Kowalski P. , Kozik T. , Krzemień W. , Kubicz E. , Niedźwiecki S. , Pałka M. , Raczyński L. , Rudy Z. , Rundel O. , Sharma N. G. , Silarski M. , Słomski A. , Strzelecki A. , Wieczorek A. , Wiślicki W. , Zieliński M. , Zgardzińska B. , Moskal P.

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tom Vol. 60, No. 4, part 1

729--732

EN

In this paper, we present prospects for using the Jagiellonian positron emission tomograph (J-PET) detector to search for discrete symmetries violations in a purely leptonic system of the positronium atom. We discuss tests of CP and CPT symmetries by means of ortho-positronium decays into three photons. No zero expectation values for chosen correlations between ortho-positronium spin and momentum vectors of photons would imply the existence of physics phenomena beyond the standard model. Previous measurements resulted in violation amplitude parameters for CP and CPT symmetries consistent with zero, with an uncertainty of about 10−3. The J-PET detector allows to determine those values with better precision, thanks to the unique time and angular resolution combined with a high geometrical acceptance. Achieving the aforementioned is possible because of the application of polymer scintillators instead of crystals as detectors of annihilation quanta.

18

Processing optimization with parallel computing for the J-PET scanner

26%

Krzemień W. , Bała M. , Bednarski T. , Białas P. , Czerwiński E. , Gajos A. , Gorgol M. , Jasińska B. , Kamińska D. , Kapłon Ł. , Korcyl G. , Kowalski P. , Kozik T. , Kubicz E. , Niedźwiecki S. , Pałka M. , Raczyński L. , Rudy Z. , Rundel O. , Sharma N. G. , Silarski M. , Słomski A. , Stola K. , Strzelecki A. , Trybek D. , Wieczorek A. , Wiślicki W. , Zieliński M. , Zgardzińska B. , Moskal P.

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tom Vol. 60, No. 4, part 1

745--748

EN

The Jagiellonian Positron Emission Tomograph (J-PET) collaboration is developing a prototype time of flight (TOF)-positron emission tomograph (PET) detector based on long polymer scintillators. This novel approach exploits the excellent time properties of the plastic scintillators, which permit very precise time measurements. The very fast fi eld programmable gate array (FPGA)-based front-end electronics and the data acquisition system, as well as low- and high-level reconstruction algorithms were specially developed to be used with the J-PET scanner. The TOF-PET data processing and reconstruction are time and resource demanding operations, especially in the case of a large acceptance detector that works in triggerless data acquisition mode. In this article, we discuss the parallel computing methods applied to optimize the data processing for the J-PET detector. We begin with general concepts of parallel computing and then we discuss several applications of those techniques in the J-PET data processing.