Autor: Mayer, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A case of cutaneous larva migrans syndrome found in group of Polish citizens after coming back from Botswana
Autorzy:: Kotlowski, A.
Olszanski, R.
Rejewska, B.
Mayer, L.
Powiązania:: https://bibliotekanauki.pl/articles/838823.pdf
Data publikacji:: 1998
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: cat
Botswana
Mediterranean zone
Asia
South America
Polish citizen
cutaneous larva
dog
Ancylostoma braziliense
nematode
climatic zone
larva
Africa
Źródło:: Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:: Annals of Parasitology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Air quality filtration in vehicle cabins
Autorzy:: Burtscher, H.
Mayer, A.
Loretz, S.
Keller, A.
Kasper, M.
Czerwinski, J.
Powiązania:: https://bibliotekanauki.pl/articles/242450.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
vehicles
nanoparticle
cabine filtration
Opis:: A filter system is presented which allows the reduction of the concentration of ultrafine particles in vehicle cabins to very low levels. The original ventilation system is switched to the recirculation mode and all cabin intake air is supplied via a retro fitted filter system. Tests with a variety of different vehicles (from passenger cars to coaches) show the efficiency of the system. Number concentration of particles inside and outside a car, the nanoparticle filtration system, fllter-efficiency: transmission for the new filter and for the filter loaded to apressure drop of 2.9 mbar, setup of the filter with integrated prefilter for course particles and blower, prototype of the filter system, main filter, prefilter and blower are included the system operated by an external control box, containing the drive electronics for the blower and displays for filter pressure drop and time meter, filter pressure drop as function of operating time in a highly polluted road tunnel, a possible solution to mount the filter system, particle concentration inside and outside the car (passenger car), concentration drops to very low levels, particle concentration inside and outside a passenger car with the filter turned on, two nanocleaner filter systems mounted in a school bus, filter system for buses installed in the luggage compartment are presented in the paper.
Źródło:: Journal of KONES; 2009, 16, 2; 59-69
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Assessment of the Protection Efficiency and Comfort of Personal Protective Equipment in Real Conditions of Use
Autorzy:: Mayer, A.
Korhonen, E.
Powiązania:: https://bibliotekanauki.pl/articles/90594.pdf
Data publikacji:: 1999
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: personal protective equipment
efficiency
ergonomics
standards
ergonomia
sprzęt ochrony osobistej
wydajność
standardy
Opis:: The lack of scientific and technical knowledge in certain complex fields, together with schedule constraints, have lead to adopting in EN standards insufficiently validated tests, relying sometimes on an empirical approach. Thus, even personal protective equipment (PPE) with positive results in tests required by the standards can nevertheless prove to be unsatisfactory when used at work. Several research projects have already been carried out on equipment, fail arresting systems, protective clothing, and gloves by several health and safety institutes in Europe. The results would suggest practical solutions to improve the representative of several European Committee for Standardization (CEN) test methods and to focus more on informing and training workers on the manner of wearing PPE, in particular respiratory protective equipment or hearing protectors.
Źródło:: International Journal of Occupational Safety and Ergonomics; 1999, 5, 3; 347-360
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Axis location and scale factors estimation for three-axis machines from periodic performance checks with laser distance measurements - risks and opportunities
Autorzy:: Nafi, A.
Łoś, A.
Mayer, J.R.R.
Powiązania:: https://bibliotekanauki.pl/articles/99577.pdf
Data publikacji:: 2010
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:: CMM
calibration
performance
diagnostic
Opis:: Users of coordinate measuring machine and large gantry machines need to ensure the volumetric performance of their machines in order to inspect, or machine, mechanical parts with precision. In the case of CMMs, the ASME B89.4.10360.2-2008 document imposes seven directions for a volumetric check. These directions offer some redundancy for axis location (out-of-squarenesses) and scale factor estimation. The paper looks at the opportunity of using the data for immediate machine correction and the risks involved. In particular, the fact of using test data for calibration and verification, the potential contamination from non-modelled motion errors and the representativity of the estimated parameters are considered. Experimental results obtained using laser interferometry on a LEGEX CMMs are used to present the main concepts.
Źródło:: Journal of Machine Engineering; 2010, 10, 4; 89-99
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Badania in vitro lekoodpornosci szczepow grzybow z rodzaju Candida
Autorzy:: Banach-Piatkowska, W
Kotlowski, A.
Humanowska, J.
Mayer, L.
Kowalczyk, D.
Powiązania:: https://bibliotekanauki.pl/articles/840174.pdf
Data publikacji:: 2001
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: lekoopornosc
grzyby
szczepy chorobotworcze
Candida
leki przeciwgrzybicze
badania in vitro
Opis:: The purpose of this study was to determine the in vitro susceptibility to 6 antifungal agents of 143 strains of Candida species isolated from 545 patients with suspicion of fungal infection. Test ATB Fungus (bioMerieux) was used. Among all Candida isolates 91.6% were susceptible to tested polyenes and 32.9% to all azoles. Less susceptible to polyenes isolates were noted in low percentage (0.7 to 4.2%) and to azoles more frequcntly (32.9 to 41.2%). Candida isolates resistant to antifungal agents tested were dependent from the kind of clinical samples and species of fungi. Monitoring of the susceptibility to antifungal agents by ATB commercial test seems to be uscful tool for therapeutic purposes.
Źródło:: Annals of Parasitology; 2001, 47, 4; 811-816
0043-5163
Pojawia się w:: Annals of Parasitology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Badania in vitro lekoodporności szczepów grzybów z rodzaju Candida
IN VITRO RESISTANCE OF CANDIDA SPECIES TO ANTIFUNGAL AGENTS
Autorzy:: Banach-Piątkowska, W.
Kotłowski, A.
Humanowska, J.
Mayer, L.
Kowalczyk, D.
Powiązania:: https://bibliotekanauki.pl/articles/2148224.pdf
Data publikacji:: 2001
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: lekoopornosc
grzyby
szczepy chorobotworcze
Candida
leki przeciwgrzybicze
badania in vitro
Opis:: The purpose of this study was to determine the in vitro susceptibility to 6 antifungal agents of 143 strains of Candida species isolated from 545 patients with suspicion of fungal infection. Test ATB Fungus (bioMerieux) was used. Among all Candida isolates 91.6% were susceptible to tested polyenes and 32.9% to all azoles. Less susceptible to polyenes isolates were noted in low percentage (0.7 to 4.2%) and to azoles more frequcntly (32.9 to 41.2%). Candida isolates resistant to antifungal agents tested were dependent from the kind of clinical samples and species of fungi. Monitoring of the susceptibility to antifungal agents by ATB commercial test seems to be uscful tool for therapeutic purposes.
Źródło:: Wiadomości Parazytologiczne; 2001, 47, 4; 811-816
0043-5163
Pojawia się w:: Wiadomości Parazytologiczne
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Case of myiasis after coming back from tropic
Autorzy:: Kotlowski, A.
Rejewska, B.
Mayer, L.
Nahorski, L.
Powiązania:: https://bibliotekanauki.pl/articles/839201.pdf
Data publikacji:: 1998
Wydawca:: Polskie Towarzystwo Parazytologiczne
Tematy:: parasitic disease
parasite
Cordylobia anthrophagea
skin
man
fly
animal
cutaneous myiasis
larva
Africa
myiasis
Tropics,The
Źródło:: Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:: Annals of Parasitology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Changes of the 2-stroke aerosol in the exhaust sampling system
Autorzy:: Czerwinski, J.
Comte, P.
Mayer, A.
Reutimann, F.
Powiązania:: https://bibliotekanauki.pl/articles/247914.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: scooters
two-stroke direct injection
carburettor
2-stroke aerosol
nanoparticulate emissions
Opis:: Nanoparticle emissions of two 2-stroke scooters were investigated along the exhaust- and CVS-system (Constant Volume Sampling) with closed and with open line (cone). Due to their technology, the scooters produce different kind of aerosol (state of oxidation & SOF-content) and in addition to that they were operated with and without oxidation catalyst. The scooters represent a modern technology with direct injection TSDI* ) (two stroke direct injection) and with carburettor. The tests were performed at two constant speeds of the vehicles (20 km/h & 40 km/h) according to the measuring procedures, which were established in the previous research in the Swiss Scooter Network. The nanoparticulate emissions were measured by means of SMPS (CPC) and NanoMet (abbreviations see at the end of this paper). The most important results are: - the changes of the PSD's of the aerosol along the exhaust and CVS-system are connected to the average gas temperature and PC-concentration, which result after the different dilution steps and cooling down in the connecting pipe, - in the "open" variant of exhaust gas extraction there is a dilution step with unfiltered ambient air directly after tailpipe. This causes a stop of agglomeration, reduction of diffusion loses and increased background NPconcentration. There is also lower post oxidation of CO & HC. In some cases spontaneous condensates due to the temperature drop are supposed, - with the "closed" variant there is a stronger reduction of SMPS PC's along the gas way, than with the open variant. This is to explain with the higher temperatures and concentrations in the closed system, which enable more intense thermophoresis - and diffusion losses, - the NP-concentrations measured with "open" variant are always higher, - most intense oxidation is observed with Peugeot Carb: due to the SAS, rich tuning and a relatively high temperature level there are oxidation effects already without catalyst (temp. approx. 350 centigrade). With catalyst the temperature is in the range of 400centigrade and the oxidation is so intense, that the particles are nearly eliminated. The type of sampling: "open", or "closed" as well as the sampling position in the exhaust installation have significant influence on the measured nanoparticles emission results.
Źródło:: Journal of KONES; 2012, 19, 2; 109-119
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Characterisation of soil aggregate stability by ultrasonic dispersion
Autorzy:: Mentler, A.
Mayer, H.
Strauss, P.
Blum, W.E.H.
Powiązania:: https://bibliotekanauki.pl/articles/24609.pdf
Data publikacji:: 2004
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: ultrasonic dispersion
soil aggregate
soil particle dispersion
aggregate stability
Źródło:: International Agrophysics; 2004, 18, 1
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Characterization of soil aggregate stability using low intensity ultrasonic vibrations
Autorzy:: Schomakers, J.
Mentler, A.
Steurer, T.
Klik, A.
Mayer, H.
Powiązania:: https://bibliotekanauki.pl/articles/24235.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: soil aggregate
stability
low intensity vibration
ultrasonic vibration
cavitation limit
carbon distribution
tillage
ultrasonic dispersion
ultrasonic method
Źródło:: International Agrophysics; 2011, 25, 2
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Combined DPF+SCR systems for retrofitting in the VERT quality verification tests
Autorzy:: Czerwinski, J.
Zimmerli, Y.
Mayer, A.
Bunge, R.
Heeb, N.
Lemaire, J.
Jauss, F.
Powiązania:: https://bibliotekanauki.pl/articles/248088.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: diesel emission reduction
diesel particle filter
SCR
limited and unlimited emissions
deNOx
Opis:: New Diesel exhaust gas aftertreatment systems, with DPF*) and deNOx (mostly SCR) inline application are very important step towards zero emission Diesel fleet. Solid quality standards of those quite complex systems are urgently necessary to enable decisions by several authorities. The Swiss Federal Office of the Environment BAFU and the Swiss Federal Roads Office ASTRA decided to support further activities of VERT to develop appropriate testing procedures and to define the quality criteria. The present report informs about the international network project VERT *) dePN (de-activation, de-contamination, disposal of particles & NOx), which was started in Nov. 2006 with the objective to introduce the SCR-, or (DPF+SCR)-systems in the VERT verification procedure. Examples of results with some investigated systems are given. The most important statements are: - the investigated combined aftertreatment systems (DPF+SCR) for dynamic engine application efficiently reduce the target emissions with deNOx-efficiency up to 92% (if operated in the right temperature window) and filtration efficiency based on particle count up to 100%, - the average NOx conversion rate at transient operation (ETC) depends strongly on the exhaust gas temperature profile and the resulting urea dosing control, - the NP filtration efficiency, which is verified at stationary engine operation is perfectly valid also at the transient operation. The present results will be confirmed in the further project activities with other systems and with different testing cycles. A special attention will be paid to the operational profiles, which are representative for low emissions zones LEZ.
Źródło:: Journal of KONES; 2008, 15, 3; 89-101
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Crystal structure and spectroscopic properties of 4-acetaminopyridine and its protonated form
Autorzy:: Koleva, B.B.
Nikolova, R.
Tchapkanov, A.
Kolev, T.
Mayer-Figge, H.
Spiteller, M.
Sheldrick, W.S.
Powiązania:: https://bibliotekanauki.pl/articles/778733.pdf
Data publikacji:: 2009
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: 4-acetyloaminopirydyna
struktura kryształów
spektroskopia IR
spektroskopia UV
4-acetaminopyridine
protonated form
crystal structure
solid-state linear polarized IR spectroscopy
UV spectroscopy
quantum chemical calculations
1H and 13C NMR
ESI-MS
TGA and DSC
Opis:: 4-Acetaminopyridine dihydrate and its protonated form, stabilized as the hydrochloride salt have been synthesized and spectroscopic elucidated in solution and in the solid-state by means of the inear-polarized solid state IR-spectroscopy (IR-LD), UV-spectroscopy, TGA, DSC, and the positive and negative ESI MS. Quantum chemical calculations were used to obtain the electronic structure, vibrational data and the electronic spectra. The spectroscopic and theoretical data are compared with the structure of the first compound obtained by single crystal X-ray diffraction. The effect of Npy protonation on the optical and magnetic properties of a 4-acetaminopyridine is discussed.
Źródło:: Polish Journal of Chemical Technology; 2009, 11, 3; 35-40
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Design of Honeycomb Structures Produced by Investment Casting
Autorzy:: Naplocha, K.
Dmitruk, A.
Mayer, P.
Kaczmar, J. W.
Powiązania:: https://bibliotekanauki.pl/articles/382969.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: investment casting
3D printing
honeycomb design
light structure
odlewnie
drukowanie 3d
projekt plaster miodu
plaster miodu
lekkie konstrukcje
Opis:: Investment casting combined with the additive manufacturing technology enables production of the thin-walled elements, that are geometrically complex, precise and can be easy commercialized. This paper presents design of aluminium alloy honeycombs, which are characterized with light structure, internal parallel oriented channels and suitable stiffness. Based on 3D printed pattern the mould was prepared from standard ceramic material subjected subsequently to appropriate heat treatment. Into created mould cavity with intricate and susceptible structure molten AC 44200 aluminium alloy was poured under low pressure. Properly designed gating system and selected process parameters enabled to limit the shrinkage voids, porosities and misruns. Compression examination performed in two directions showed different mechanisms of cell deformation. Characteristic plateau region of stress-strain curves allowed to determine absorbed energy per unit volume, which was 485 or 402 J/mm3 depending on load direction. Elaborated technology will be applied for the production of honeycomb based elements designated for energy absorption capability.
Źródło:: Archives of Foundry Engineering; 2019, 4; 76-80
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Effects of fuel tracing on nanoparticles from a Diesel engine
Autorzy:: Czerwinski, J.
Mayer, A.
Wischer, A.
Powiązania:: https://bibliotekanauki.pl/articles/134232.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: diesel
emissions
nanoparticles
size distribution
composition of particles
silnik spalinowy
emisja
nanocząstki
rozkład wielkości
skład cząstek
Opis:: Nanoparticles from a HD-Diesel engine and their composition were investigated in the present paper. Three variants of fuel additivities were applied to allow the balances of certain tracer-substances after the tests: 2% of additives-free lube oil; 2% of market lube oil with additive package and Fe-based regeneration additive (FBC) with 40 ppm Fe. The analysed SMPS particle size distributions indicated that by blending of the market lube oil to the fuel the combined effects of metals or metal oxides from the additive packages and of the heavy HC’s from the lube oil matrix contribute the most to the increase of nuclei mode. From the masses of Fe, Zn and Ca, which were introduced with the fuel, only parts were found as integral masses at all ELPI-stages – Fe 43.5%, Zn 36.6%, Ca 65.5%. The majority of mass of some metals, or metal oxides emissions on ELPI-stages (up to 80%) is in the size ranges below 100 nm.
Źródło:: Combustion Engines; 2015, 54, 1; 3-10
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki