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    Wyświetlanie 1-7 z 7
    Tytuł:
    Analysis of braking marks left by vehicles equipped with ABS with IR spectroscopy
    Autorzy:
    Gosławski, Lukasz
    Kubiak, Przemyslaw
    Mrowicki, Adam
    Soghabatyan, Tigran
    Sys, Ewa
    Wang, Ying-Wei
    Zou, Tiefang
    Powiązania:
    https://bibliotekanauki.pl/articles/262935.pdf
    Data publikacji:
    2019
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    accident investigation
    skid marks
    IR spectroscopy
    Opis:
    This paper presents the possible use for IR spectroscopy to reveal skid marks left by cars equipped with Anti-lock Braking System. Detailed analysis of literature showed that there is no method that can be used in order to investigate this kind of tire marks. Up till now only two techniques have been devised. The first one is Method of Image Refinement which consists of transforming the image from the scene of the accident using dedicated graphics software. Second method includes analysis of traces using a thermal imaging camera. This study presents an innovative approach to the problem. Numerous analyses using IR spectroscopy were conducted to check the suitability of this method. The research performed on a Thermo Scientific FTIR Nicolet iS50 Spectrophotometer with an ATR attachment. 40 samples from 10 different types of asphalt were prepared. Each sample was measured 3 times to create its spectrum. The results were analyzed thoroughly using the dedicated SpectraGryph software. Analysis show that the wavelength which makes the braking marks visible is found within the mid-infrared range. Finally, it was found wavelength in which skid marks should be visible. This range is located in the mid-infrared.
    Źródło:
    Archiwum Motoryzacji; 2019, 84, 2; 33-43
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    THE POSSIBILITY OF USING X-RAY POWDER DIFFRACTION, INFRARED AND RAMAN SPECTROSCOPY IN THE STUDY OF THE IDENTIFICATION OF STRUCTURAL POLYMORPHS OF ACETAMINOPHEN
    Autorzy:
    Stasiłowicz, Anna
    Mizera, Mikołaj
    Tykarska, Ewa
    Lewandowska, Kornelia
    Miklaszewski, Andrzej
    Cielecka-Piontek, Judyta
    Powiązania:
    https://bibliotekanauki.pl/articles/895486.pdf
    Data publikacji:
    2019-12-29
    Wydawca:
    Polskie Towarzystwo Farmaceutyczne
    Tematy:
    acetaminophen
    PXRD
    Raman
    FT-IR
    structural polymorphism
    Opis:
    Paracetamol (acetaminophen), a pain-killer with antipyretic properties, shows structural polymorphism. It occurs in three polymorphic forms: monoclinic, orthorhombic, and unstable form III. In the study, the commercially available samples of paracetamol (P1 and P2) were examined using X-ray powder diffraction, infrared, and Raman spectroscopy. Results demonstrated that all of the methods defined polymorphic forms of paracetamol in the samples. However, only Raman spectroscopy and PXRD methods detected impurities in the sample P1. These methods transpired to be more sensitive than the FT-IR method, which identified samples of paracetamol as one structural form (monoclinic polymorph). Moreover, the Raman spectroscopy identified impurities in the form P1 as changes in the crystalline form.
    Źródło:
    Acta Poloniae Pharmaceutica - Drug Research; 2019, 76, 6; 997-1004
    0001-6837
    2353-5288
    Pojawia się w:
    Acta Poloniae Pharmaceutica - Drug Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Edukacja całożyciowa jako personalny wymiar realizacji osoby ludzkiej
    Life-long Education as a Personal Dimension of the Realization of a Human Person
    Autorzy:
    Ir, Ewa
    Powiązania:
    https://bibliotekanauki.pl/articles/1371229.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
    Tematy:
    edukacja całożyciowa
    kompetencje zawodowe
    nauczyciel
    lifelong education
    professional competences
    teacher
    Opis:
    The article shows that lifelong education is a personal dimension of the realization of a human person, which results from the fact that a person learns throughout his life, which is inscribed in human nature. Without lifelong education, and thus taking various actions aimed at getting to know the world and oneself, expanding one’s knowledge and competences, it is impossible to become a professional teacher who is to be an authority, a role model, and a specialist in his field for a student.
    Źródło:
    Pedagogika Przedszkolna i Wczesnoszkolna; 2020, 2 (16); 71-78
    2353-7140
    2353-7159
    Pojawia się w:
    Pedagogika Przedszkolna i Wczesnoszkolna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Moje wiersze inspiracją dla dzieci. Refleksja nauczyciela
    My Poems as an Inspiration for Children. The teacher’s reflection
    Autorzy:
    Ir, Ewa
    Powiązania:
    https://bibliotekanauki.pl/articles/1371225.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
    Tematy:
    literatura dziecięca
    wiersze
    rozwój wyobraźni
    prace plastyczne dzieci
    literature for children
    poems
    imagination development
    children’s artworks
    Opis:
    This work is the teacher’s reflection on the relationship between literature and children’s art. Its purpose is to show that poems are an important element of education and should be used by teachers in shaping the students’ personality and developing their imagination.
    Źródło:
    Pedagogika Przedszkolna i Wczesnoszkolna; 2020, 2 (16); 85-126
    2353-7140
    2353-7159
    Pojawia się w:
    Pedagogika Przedszkolna i Wczesnoszkolna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The radiolytic studies of panipenem in the solid state
    Autorzy:
    Zalewski, Przemysław
    Rosiak, Natalia
    Kilińska, Karolina
    Skibiński, Robert
    Szymanowska, Daria
    Tykarska, Ewa
    Piekara-Sady, Lidia
    Lewandowska, Kornelia
    Miklaszewski, Andrzej
    Piontek, Judyta C.
    Powiązania:
    https://bibliotekanauki.pl/articles/895501.pdf
    Data publikacji:
    2020-04-29
    Wydawca:
    Polskie Towarzystwo Farmaceutyczne
    Tematy:
    HPLC
    FT-IR
    EPR
    radiation sterilization
    Q-TOF
    panipenem
    Opis:
    The influence of ionizing radiation on the physicochemical properties of panipenem in solid state was studied. In the first part of our studies, we evaluated the possibility of applying radiosterilization to obtain sterile panipenem. Spectroscopic (FT-IR, Raman), chromatography (HPLC and HPLC-MS) and X-ray powder diffraction (XRPD) studies have shown that irradiation of ertapenem with the 25 kGy, the dose required to achieve sterility, does not change the physicochemical properties of the studied compound. The antimicrobial activity of panipenem irradiated with the dose of 25 kGy was reduced for three species. It was confirmed that the decrease in antimicrobial activity might be related to isomerization of panipenem.
    Źródło:
    Acta Poloniae Pharmaceutica - Drug Research; 2020, 77, 2; 241-250
    0001-6837
    2353-5288
    Pojawia się w:
    Acta Poloniae Pharmaceutica - Drug Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of braking marks left by vehicles equipped with ABS with IR spectroscopy – different types of asphalt
    Autorzy:
    Sys, Ewa
    Kubiak, Przemysław
    Gosławski, Lukasz
    Zakrzewicz, Wojciech
    Powiązania:
    https://bibliotekanauki.pl/articles/1838312.pdf
    Data publikacji:
    2021
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    IR spectroscopy
    accident investigation
    skid marks
    Opis:
    Detailed analysis of literature showed that there is no method that can be used in order to investigate skid marks left by vehicles equipped with ABS. Authors decided to identify braking trace by using IR spectroscopy. Preliminary studies have been performed and results were promising. Due to that fact authors decided to conduct detailed research where the influence of various factors on the possibility of revealing breaking traces would be taken into account. This article is the first in a series of articles taking into account the influence of various factors on the possibility of revealing breaking marks using IR spectroscopy. In this article the influence of the type of asphalt was studied. Authors conducted tests with the most popular types of asphalts used for the wearing course. 100 samples from 5 different types of asphalt were prepared. Each sample was measured 3 times to create its spectrum. The results were analyzed thoroughly using the dedicated SpectraGryph software. The analysis showed that for 4 out of 5 types of tested asphalt, the braking traces were visible at a wavelength of approximately 11 500 nm. Only for the rubberized asphalt there weren’t possibility to reveal skid mark.
    Źródło:
    Archiwum Motoryzacji; 2021, 93, 3; 5-14
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of calorie restriction on the anthropometric parameters, HOMA-IR index, and lipid profile of female office workers with overweight and obesity: a preliminary study
    Autorzy:
    Sadowska-Krępa, Ewa
    Gdańska, Agnieszka
    Přidalová, Miroslava
    Rozpara, Michał
    Grabara, Małgorzata
    Powiązania:
    https://bibliotekanauki.pl/articles/2152975.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    insulin resistance
    lipid profile
    reduction diet
    snacking
    coronavirus pandemic
    low physical activity level
    Opis:
    Objectives This study evaluates the effect of a 3-month calorie restriction (CR) without snacking on the anthropometric parameters, Homeostatic Model Assesment of Insulin Resistance (HOMA-IR), and lipid profiles of female office workers with overweight or obesity, whose physical activity was limited during the COVID-19 pandemic lockdown. Material and Methods Forty-eight women aged 20–38 years (28.9±5.24) with low physical activity levels were divided into a non-snacking (NS) group (N = 21) and a snacking (S) group (N = 27) prior to the dietary intervention. Their daily energy intake during the intervention was lowered by 30% compared with the baseline level, and the proportion of polyunsaturated fatty acids and fiber in their diet was increased (to >30 g/day). The proportion of saturated fatty acids and simple carbohydrates was also reduced. The study participants were assessed at the baseline and post-intervention for anthropometric variables (body weight, body fat percentage BMI, waist circumference, hip circumference, waist-to-hip ratio) and the concentrations of insulin, total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C). Moreover, the values for HOMA-IR, the atherogenic index of plasma (AIP), and the ratios of TC/HDL-C, TG/HDL-C, and LDL-C/HDL-C were calculated. Results All anthropometric parameter values obtained post-intervention were lower than the baseline in both groups. The serum insulin concentration and HOMA-IR decreased respectively by an average of 6% and 25% in the NS group and 37% and 45% in the S group. The lipid profiles of all participants improved significantly, with the LDL-C concentration showing a more promising trend in the S group (decrease by 27%) than in the NS group (17%). Conclusions The study showed that CR improved the anthropometric parameters, HOMA-IR index, and lipid profiles of all participants.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2022, 35, 6; 693-706
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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