Wyniki wyszukiwania - Biblioteka Nauki

1

Garden dormouse (Eliomys quercinus, Linnaeus 1766) without fenestration in angular process

100%

Yuste C. S. , Calzada J.

Acta Theriologica

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2013

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tom 58

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nr 3

EN

One of the skull traits that separates the Leithiinae subfamily from other subfamilies of Gliridae family is a prominent fenestration in the angular process of the mandible. There is no reference in the literature of dormice from Leithiinae subfamily without this fenestration. However, some garden dormice (Eliomys quercinus) have been found without this fenestration in Spain. This lack of perforation may be due to an ossification of the angular process related to bone growth. Garden dormice skulls from different parts of Spain kept in two mammal collections were revised in order to detect animals without fenestration and to take measures that differ between young and adult dormice. The measures recorded did not differ between dormice with and without fenestration, and so, the entire angular process is not the result of an ossification process. Thus, the discovery of specimens without fenestration in the angular process should be taken into account in studies which need the identification of this species and other species from Leithiinae subfamily based on skull and mandibles traits.

2

Impact of windows parameters on the thermal performance of a multi-family building

75%

Trząski A. , Panek A. , Rucińska J.

Czasopismo Techniczne. Budownictwo

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2014

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tom R. 111, z. 3-B

473--480

EN

The paper presents an analysis of the influence of various window types on the thermal performance of a multi-family building. In the analysis several different fenestration system configurations were considered. For these systems, heating and cooling demand of the building was estimated according to the simple hourly method proposed in ISO 13790. The results were used to compare, both the overall thermal performance of the building, as well as the actual thermal energy balance of analyzed windows.

PL

W artykule przedstawiono wyniki analizy wpływu zastosowania różnych rodzajów okien w charakterystyce energetycznej budynku wielorodzinnego. W analizie rozpatrzono zastosowanie kilku różnych systemów okiennych. Dla analizowanych systemów obliczono zapotrzebowanie na ciepło oraz chłód, posługując się prostą metodą godzinową zgodną z ISO 13790. Wyniki obliczeń wykorzystano do porównania zarówno całkowitego zapotrzebowania na energię budynku, jak i do określenia rzeczywistego bilansu badanych okien.

3

Short-term outcome after microdiscectomy for lumbar disc herniation – a single centre study

75%

Kulesza B. , Szmygin P. , Krukow P. , Mazurek M. , Kulesza J.

Journal of Pre-Clinical and Clinical Research

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2021

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tom 15

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nr 1

4

Measurement of thermal transmittance of multi-layer glazing with ultrathin internal glass partitions

75%

Lechowska A. , Schnotale J. , Fedorczak-Cisak M. , Paszkowski M.

Czasopismo Techniczne. Budownictwo

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2014

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tom R. 111, z. 3-B

273--279

EN

Currently, the most technologically advanced building walls have an overall heat transfer coefficient U at a level of 0.10 W/(m2K) which corresponds to the passive house standard. Less demanding requirements are set for building windows for which the thermal performance has not yet been significantly improved. Therefore, there is a demand for developing new technologies for glazing with superior thermal performance, good optical quality and of the lowest possible weight. In the paper, measurements of thermal performance of multi-layer glazing with ultrathin internal glass partitions are presented.

PL

Obecnie współczynnik przenikania ciepła ścian w budynkach energooszczędnych jest rzędu 0.10 W/(m2K), co odpowiada standardowi budynków pasywnych. Z kolei mniej rygorystyczne wymagania w standardzie pasywnym dotyczą okien, gdzie współczynnik przenikania ciepła wynosi około 0.7 W/(m2K). Tak więc istnieje potrzeba rozwoju technologii okien z bardzo niskimi wartościami współczynników przenikania ciepła i jednocześnie posiadających dobre walory optyczne a także niską wagę. W artykule zaprezentowano wyniki pomiarów izolacyjności cieplnej wielowarstwowego oszklenia z wewnętrznymi ultracienkimi szybami wykonane w komorze klimatycznej zgodnie z odpowiednimi normami.

5

Numerical simulations of the pulsatile blood flow in the different types of arterial fenestrations: Comparable analysis of multiple vascular geometries

63%

Tyfa Z. , Obidowski D. , Reorowicz P. , Stefańczyk L. , Fortuniak J. , Jóźwik K.

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tom Vol. 38, no. 2

228--242

EN

In medical terms, fenestration stands for an anomaly within the circulatory system in which the blood vessel lumen is divided into two separate channels that rejoin in the distal part of this vessel. The primary objective of this research was to analyze the impact of the left vertebral artery (LVA) and basilar artery (BA) fenestrations on the blood flow characteristics in their regions and downstream, in the cerebral circulation. The geometrical data, obtained from the angio-Computed Tomography, were the basis for the generation of a 3D model in SolidWorks 2015. In order to observe the flow characteristics within the whole spatial domain, computational fluid dynamics was involved in performing simulations of the blood flow in the patient-specific arterial system (beginning with the aortic arch and finishing with the Circle of Willis). To examine the flow distribution changes resulting from altered fenestration geometries, additional models were built. The blood flow velocity, volume flow rate and shear stress distribution were analyzed within this study. It was proven that the length/size/ position of the fenestration altered the flow characteristics in different manners. The investigations showed that the patient-specific LVA, at the V3 section (extracranial part of the artery located between the spine and the skull), is not a reason of aneurysm formation. However, BA fenestration at the proximal segment might be a possible reason of future aneurysm formation. It was proven that the computational fluid dynamics tool could support medical diagnostic procedures and multivessel brain vascular disease treatment planning.

6

Razvitie svetoprozracnyh konstrukcij v Rossii

63%

Spiridonov A. , Subin I.

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tom nr 1(13)

116--129

RU

Dan analiz razvitia svetoprozracnyh konstrukcij v Rossii s 1991 po nastoascee vrema. Privedena metodika ocenki okupaemosti energoeffektivnyh okon v razlicnyh regionach RF. Predlozeno rajonirovanie territorii strany po novym povysennym znaceniam soprotivlenia teploperedace svetoprozracnyh konstrukcij.

EN

The article shows an analysis of development of fenestration in Russia from 1991 to the present time. The method of estimation of payback for energy efficient windows installation in various regions of Russia was created. It was proposed zoning of the territory of the country on new high values of the heat resistance of fenestration.

7

The assessment of the usefulness of hemilaminectomy without fenestration in the treatment of thoracolumbar disc disease in chondrodystrophic dogs

63%

Sterna J. , Burzykowski T.

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tom 10

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nr 3

EN

The aim of the publication is to assess the effectiveness of the treatment of type I disc extrusion according to Hansen by using the method of hemilaminectomy without fenestration. The evaluated clinical material comprised 36 chondrodystrophic dogs in which 38 surgical procedures were performed. All dogs were administered corticosteroid during the operation. Dachshunds made up to 79% of patients. In 34 cases grainy mass was extracted from the vertebral canal. In two cases it was plaster-like mass and in other two - granulo-chondral. Most often (12 cases) the prolapse of the nucleus pulposus was observed between the first and second lumbar vertebra. There was one case of the postoperative pyogenic infection of the wound. Recovery was observed in all dogs with 3rd grade clinical signs, 1] out of 18 dogs with 4th grade and 8 out of 13 dogs with 5lh grade of dysfunction severity. The recovery time of the dog depended in the statistically significant way on the severity of symptoms and the grade of the present disease (p<0.00005). There did not appear to be any statistically significat relationship between the recovery time and the duration of symptoms pre operatively (p=0.42), the time of non-ambulatory status (p=0.27) and the breed of the dog (p=0.81).

8

Assessment of the usefulness of the fenestration method in cases of disc extrusion in the cervical and thoraco-lumbar spine in chondrodystrophic dogs

51%

Sterna J. , Burzykowski T.

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nr 1

55-62

EN

The aim of this paper was to assess the effectiveness of treatment of Type I (according to Hansen) intervertebral disc extrusion using the fenestration method. The evaluated clinical material included 37 chondrodystrophic dogs in which multiple fenestration (from 2 to 6 intervertebral spaces) was performed. Dachshunds comprised 86.5% of patients. All dogs were administered corticosteroids during the operation. A mass similar to a slightly jelly-like yogurt, cottage cheese or plaster-like consistency was extracted. In one case a post-surgical pyogenic infection of the wound occured. In two cases, a deterioration in the neurological state followed the fenestration procedure of the cervical spine. In one case of thoraco-lumbar spine fenestration, a deterioration of clinical state was found. Recovery was observed after disc extrusion from the cervical spine in 8 out of 11 dogs, from the thoraco-lumbar spine in 12 out of 14 dogs with the 2nd grade clinical signs and in 11 out of 12 dogs with the 3nd grade clinical sings. In 6 dogs, recurrence of first or second grade clinical signs occurred, but only half of them had to undergo treatment. The probability of dog recovery did not depend on the degree of symptom intensity in a statistically significant way (p=0.11) or on the duration of the disease before the surgical treatment (p=0.87).

9

The impact of size in fenestration design on the airflow and temperature in natural cross ventilation, case study: A two-bedroom Polish multifamily home

51%

Mohammadi M. M. , Janowski M.

Builder

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2023

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tom R.27, nr 10

74--83

EN

In countries with cold winters such as Poland, there is growing evidence for proliferating overheating in summer times due to climate change. Hence, buildings become more uncomfortable for their occupants during hot summers. To tackle this challenge, we use the passive strategies potential to adapt buildings in line with their experimental and engineering analysis of the indoor environment. This paper demonstrates the results of both thermal and airflow simulation of existing naturally ventilated in double-bedroom homes in Poland. Thermal and airflow simulation is used to improve the natural ventilation system and to address summer thermal comfort problems due to excessive hot airflow caused by climate change. In the first step of the research, over 300 multi-family home plans all over Poland were categorized by size, ventilation type, facade organization, and fenestration type. In the second part, computational fluid dynamics (CFD) analysis is used on 3D models to predict indoor airflow velocities for different levels of the building envelope airflow permeability. Then, a coupled thermal and airflow simulation with 2 different window size, fully open, and with 3 integrated shadings options (base model or no shadings, 30 cm overhang with side-fin, and 10 cm depth horizontal louvers) are done to investigate whether the more opened envelope reduces a summer overheating problem. The results for the optimized natural ventilation through fenestrations successfully address houses' summer discomfort problem by reducing the indoor temperature between 2-3ºC and in some cases up to 4ºC cooler than similar model with small windows.

PL

Z powodu zmian klimatu w krajach o mroźnych zimach, takich jak Polska, pojawia się coraz więcej dowodów na coraz częstsze przegrzewanie się pomieszczeń w okresie letnim. Dlatego budynki stają się bardziej niewygodne dla ich mieszkańców podczas upalnego lata. Aby sprostać temu wyzwaniu, wykorzystano potencjał strategii pasywnych do adaptacji budynków zgodnie z ich eksperymentalną i inżynierską analizą środowiska wewnętrznego. W artykule przedstawiono wyniki symulacji termicznej i przepływu powietrza w istniejących polskich mieszkaniach dwupokojowych z naturalną wentylacją. Symulacja termiczna i przepływu powietrza służy do poprawy systemu naturalnej wentylacji i rozwiązania problemów związanych z komfortem cieplnym w lecie, spowodowanych nadmiernym przepływem gorącego powietrza związanym ze zmianami klimatycznymi. Na pierwszym etapie badań ponad 300 projektów domów wielorodzinnych z całej Polski zostało skategoryzowanych pod względem wielkości, rodzaju wentylacji, organizacji elewacji i rodzaju okien. W drugiej części analiza obliczeniowej dynamiki płynów (CFD) była wykorzystywana na modelach 3D do przewidywania prędkości przepływu powietrza w pomieszczeniach dla różnych poziomów przepuszczalności powietrza przez powłoki zewnętrzne budynku. Następnie przeprowadzano połączoną symulację termiczną i przepływu powietrza z dwoma różnymi rozmiarami okien, całkowicie otwartymi, i trzema zintegrowanymi opcjami zacienienia, aby zbadać, czy bardziej otwarta powłoka budynku zmniejsza problem przegrzania mieszkania w okresie letnim. Wyniki pokazują, że zoptymalizowana naturalna wentylacja przez okna skutecznie rozwiązuje problem dyskomfortu w domach latem, obniżając temperaturę wewnętrzną o 2-3°C, a w niektórych przypadkach nawet o 4°C w porównaniu do podobnych modeli ze standardowymi oknami.

10

Restoring historical fenestration to normalize physical parameters of the microclimate of premises in historical buildings

51%

Spiridonov A. , Umnyakova N.

Budownictwo o Zoptymalizowanym Potencjale Energetycznym

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2021

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tom Vol. 10 Nr 1

53--61

EN

The problems related to restoring the fenestration of old buildings while preserving their historical elements and achieving modern acceptable conditions and parameters of the buildings’ microclimate were studied. A visual and instrumental examination of existing fenestrations was conducted assessing their influence on the microclimate of the premises. Development of possible variants of modernization while ensuring the maximum preservation of the historical details and elements of the buildings was carried out, including the modelling and calculation of these variants by certified software. The most optimal variants were selected, and recommendations for the restoration of windows and skylights, ensuring the fulfillment of modern requirements, were developed. The results of the work will be used in the restoration of the main building of the Museum of Fine Arts, which in 2025, will make up part of the town museum on Volkhonka Street, Moscow.

11

Leczenie spondylomielopatii szyjnej przy użyciu spersonalizowanego implantu kręgosłupowego u psa - opis przypadku

44%

Stelmaszyk M. , Terpilowska N. , Terpilowski R. , Adach P. , Lubak M.

Weterynaria w Praktyce

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2020

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tom 17

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nr 06