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Tytuł:
A Comparison of Skin Temperatures and Clothing Microclimate During Moderate Intermittent Exercise in the Cold Between One and Two Layers of Cotton and Polypropylene Underwear
Autorzy:
Ha, M.
Tokura, H.
Yoden, K.
Holmer, I.
Powiązania:
https://bibliotekanauki.pl/articles/90615.pdf
Data publikacji:
1998
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
mean skin temperature
clothing microclimate
cotton
polypropylene
underwear
średnia temperatura skóry
bawełna
ubranie
polipropylen
Opis:
The purpose of this study was to compare the effects of 2 kinds of underwear made from hydrophobic and hydrophilic fabrics on the mean skin temperatures and clothing microclimate (temperature, humidity) in participants performing intermittent exercise in cold environmental conditions. One or 2 layers of cotton underwear (C1, C2) with a 2-piece long-sleeved shirt and long-legged trousers, and 1 or 2 layers of polypropylene underwear (P1, P2) with a 2-piece long-sleeved shirt and long-legged trousers were used as experimental underwear. In addition, the participants wore a 2-piece ski suit as 100% polyester clothing including 100% polyester padding. Ten young adult females volunteered as participants. The experiments were performed in a climatic chamber at an ambient temperature (Ta) of 0°C and an air velocity of 0.26 m s-1. The major findings are summarized as follows: (a) Although the clothing microclimate humidity was not different within the ski suit of outer clothing between C1 and P1, it was significantly higher in P2 than in C2; (b) Clothing microclimate temperature inside the ski suit did not differ between C1 and P1, whereas it was significantly higher in P2 than in C2; (c) The thermal gradient between innermost and outermost of clothing microclimate at back level did not show any difference between C1 and P1, but it was significantly higher in C2 than in P2. These results are discussed in terms of thermal physiology and clothing sciences.
Źródło:
International Journal of Occupational Safety and Ergonomics; 1998, 4, 3; 347-362
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Agar-agar a promising edible coating agent for management of postharvest diseases and improving banana fruit quality
Autorzy:
Ziedan, E.S.H.
El Zahaby, H.M.
Maswada, H.F.
Zoeir, H.A.
Powiązania:
https://bibliotekanauki.pl/articles/66110.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
banana
Musa
fruit
storage
fruit disease
fungi
agar
edible coating
postharvest disease
Opis:
This study was executed to investigate the potential of agar-agar, a nontoxic and non-degradable gelling agent, as a promising coating agent to improve and protect banana fruit against fungal postharvest diseases i.e., crown, finger, neck and flower end rots which are caused by fungal isolates of Colletotrichum musae and Fusarium moniliforme. Coated-banana fruit samples with different concentrations of agar-agar suspension particularly at 2.0 g · l−1 exhibited a significant reduction in incidence and severity of postharvest diseases compared to untreated fruit. Banana fruits dipped in agar suspension at 2.0 g · l−1 for 5, 10 and 15 min showed significant reduction in disease incidence and severity. Moreover, application of agar suspension as a coating agent at 2.0 g · l−1 significantly decreased weight loss (%), firmness loss (%), and soluble solid concentration of banana fruit for 15 days at 25 ± 2°C. Scanning electron microscopy observation confirmed that the fruit coated with agar colloid at 2.0 g · l−1 had significantly fewer cracks and showed smoother surfaces than untreated fruit. This explains the quality improvement in agar-coated fruit compared to uncoated fruit. Overall, agar colloid, a safe coating agent, could be used to protect banana fruit against postharvest rot diseases and extend fruit storage life during ripening and storage.
Źródło:
Journal of Plant Protection Research; 2018, 58, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An efficient pedestrian attribute recognition system under challenging conditions
Autorzy:
Nguyen, Ha X.
Hoang, Dong N.
Tran, Tuan A.
Dang, Tuan M.
Powiązania:
https://bibliotekanauki.pl/articles/24200444.pdf
Data publikacji:
2023
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Instytut Informatyki Technicznej
Tematy:
pedestrian attribute recognition
Deep Learning
vision transformer
security surveil-lance
Opis:
In this work, an efficient pedestrian attribute recognition system is introduced. The system is based on a novel processing pipeline that combines the best-performing attribute extraction model with an efficient attribute filtering algorithm using keypoints of human pose. The attribute extraction models are developed based on several state-of-the-art deep networks via transfer learning techniques, including ResNet50, Swin-transformer, and ConvNeXt. Pre-trained models of these networks are fine-tuned using the Ensemble Pedestrian Attribute Recognition (EPAR) dataset. Several optimization techniques, including the advanced optimizer Adam with Decoupled Weight Decay Regularization (AdamW), Random Erasing (RE), and weighted loss functions, are adopted to solve issues of data unbalancing or challenging conditions like partial and occluded bodies. Experimental evaluations are performed via EPAR that contains 26 993 images of 1477 person IDs, most of which are in challenging conditions. The results show that the ConvNeXt-v2-B outperforms other networks; mean accuracy (mA) reaches 85.57%, and other indices are also the highest. The addition of AdamW or RE can improve accuracy by 1-2%. The use of new loss functions can solve the issue of data unbalancing, in which the accuracy of data-less attributes improves by a maximum of 14% in the best case. Significantly, when the attribute filtering algorithm is applied, the results are dramatically improved, and mA reaches an excellent value of 94.85%. Utilizing the state-of-the-art attribute extraction model with optimization techniques on the large-scale and diverse dataset and attribute filtering has shown a good approach and thus has a high potential for practical applications.
Źródło:
Machine Graphics & Vision; 2023, 32, 2; 3--18
1230-0535
2720-250X
Pojawia się w:
Machine Graphics & Vision
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Data security based on neural networks
Autorzy:
Noaman, K.M.G.
Jalab, H.A.
Powiązania:
https://bibliotekanauki.pl/articles/1964155.pdf
Data publikacji:
2005
Wydawca:
Politechnika Gdańska
Tematy:
data security
cryptography
neural networks
Opis:
The paper is concerned with the study and design of a data security system based on neural networks. Data with different keys were taken as test data, encrypted, decrypted and compared with the original data. The results have confirmed its advantages over other techniques.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2005, 9, 4; 409-414
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of a high-speed air bearing spindle
Autorzy:
Ha, Y.-H.
Lee, D.-W.
Hwang, Y.-K.
Lee, C.-M.
Powiązania:
https://bibliotekanauki.pl/articles/1429126.pdf
Data publikacji:
2008
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
aerostatic bearing
metal foam
porous thrust bearing
porous radial bearing
Opis:
This paper investigates an air spindle with both radial and thrust air bearings of newly developing one-directional porous materials. At present, orifice type and porous type are adopted for thrust air bearings. Orifice type thrust air bearing is fabricated by machining several micro-holes on a bearing pad bearing, permeability significantly affected by particle size and machining conditions is an important factor of performance, but it is hard to c porosities is suggested. It has many micro-porosities through axial direction, so stable and plenty of air can be supplied to the thrust bearing pad. A radial air bearing also can be substituted by a radial direction porous bearing as the same reason. In case of driving parts, built-in motor type is widely applied. But it needs additional cooling parts to drop heat from a motor. So application of an air turbine drive with light-weight shaft is suggested and additionally it will reduce fabricating cost.
Źródło:
Journal of Machine Engineering; 2008, 8, 4; 25-31
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differential responses of aquatic and aerobic forms of Echinochloa crus-galli (L.) Beauv. and E. colona (L.) Link. by morpho-physiological and molecular analysis
Autorzy:
Khedr, A.-H.A.
Serag, M.M.
Shaaban, H.E.
Abogadallah, G.M.
Powiązania:
https://bibliotekanauki.pl/articles/9989.pdf
Data publikacji:
2017
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
alcohol dehydrogenase
ADH zob.alcohol dehydrogenase
aquatic form
aerobic form
Echinochloa crus-galli
Echinochloa colona
habitat alteration
morphophysiological analysis
molecular analysis
phosphoenolopyruvate carboxylase
Rubisco
Opis:
Echinochloa crus-galli and E. colona are serious weeds around the world. Morphological and biochemical features of aquatic and aerobic forms of both species were investigated experimentally by transplanting the seedlings reciprocally between water-saturated and aerobic soils (70% field capacity). When the plants were grown in water-saturated soil, a significant decrease in tiller height was observed in E. crus-galli, but not in E. colona. Upon growing the plants in aerobic soil, internode length and spike dry weight increased significantly in E. crus-galli, but decreased significantly in E. colona. Growth under aerobic condition caused a significant increase in PEPC/Rubisco ratio, but a significant decrease was observed under water-saturated conditions. When E. crus-galli was transplanted in aerobic soil, several forms of peroxidase were upregulated. Contrarily, in E. colona peroxidase isoforms did not respond to habitat change. Gene expression of ADH in E. colona was constitutive at a fairly high level under native habitats then enhanced with reversing habitat that caused anoxic and mild drought conditions. Both species tend to grow faster under aerobic conditions by modifying the photosynthetic machinery and capacity of scavenging of reactive oxygen species. Furthermore, ADH appears to play a role in supporting growth under water-saturated conditions.
Źródło:
Environment, Earth and Ecology; 2017, 1, 1
2543-9774
2451-4225
Pojawia się w:
Environment, Earth and Ecology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution and invasiveness of a colonial ascidian, Didemnum psammathodes, along the Southern Indian coastal water
Autorzy:
Jaffar, H.A.
Akram, A.S.
Arshan, M.L.K.
Sivakumar, V.
Tamilselvi, M.
Powiązania:
https://bibliotekanauki.pl/articles/48689.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Źródło:
Oceanologia; 2016, 58, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of reniform nematode, Rotylenchulus reniformis as biotic inducer of resistance against root-knot nematode, Meloidogyne incognita in potato
Autorzy:
Osman, H.A.
Youssef, M.M.A.
Youssef El-Gindi, A.E.M.
Ameen, H.H.
Abd-Hameid Abt-Elbary, N.
Shawky Lashein, A.M.
Powiązania:
https://bibliotekanauki.pl/articles/65443.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
A greenhouse experiment was conducted to evaluate the preinoculation of reniform nematode, Rotylenchulus reniformis for inducing resistance against Meloidogyne incognita in potato plants. Potato plants were inoculated with reniform nematode three days before the same plants received a root knot nematode inoculation. There was a reduction in the population parameters of the root knot nematode compared to plants given only a single inoculation. The studied potato plants which had two inoculations, also had enhanced growth parameters. The activity of the enzymes; peroxidase, polyphenol oxidase, and chitinase increased in the inoculated plants compared to the non-inoculated control.
Źródło:
Journal of Plant Protection Research; 2012, 52, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Seed Emergence, Seedling Vigor Enhancement of Some Populations From Satureja Bachtiarica With Chemical, Mechanical and Physiological Treatment
Autorzy:
Alizadeh, M. A.
Arab, H.A.
Tabaie, R.
Nasiri, M.
Jafari, A.A.
Powiązania:
https://bibliotekanauki.pl/articles/2199668.pdf
Data publikacji:
2016-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
dormancy
germination
Satureja bachtiarica
vigor
Opis:
The seeds of 3 populations from Satureja bachtiarica were collected from three native vegetation areas (Simirom2, Sharkord and Yazd). The different treatments including: cold stratification, gibberlic acid (50 and 100 ppm) Potassium nitrate (0.2 and 0.4 percent). Physical scarification (sand paper), chemical scarification (Ethylic alcohol %70) and distilled water (control) were used for breaking dormancy of the seed samples. For greenhouse experiment, the seed samples were treated with treatments and then were sown in pots using randomize design with three replications. Emergence percentage, emergence speed, length of root and shoot, seedling length, root/shoot length ratio, vigor index, seedling fresh and dry weight, dry/fresh weight ratio were evaluated during 45 days of experiment. Comparing of population Semirom2 form savory of Bachtiary was higher than other population. It was concluded that effect of gibberlic acid and potassium nitrate was higher than physical scarification and chemical scarification comparing with control.
Źródło:
Plant Breeding and Seed Science; 2016, 74; 37-44
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
First report of hepatic cysticercosis in a Rook (Corvus frugilegus) (Passeriformes, Corvidae)
Autorzy:
Nourani, H.
Dehkordi, H.A.
Soltani, S.
Khosravi, M.
Powiązania:
https://bibliotekanauki.pl/articles/6296.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
hepatic cysticercosis
parasite
prevalence
parasitic infection
cysticercosis
Rook
Corvus frugilegus
Passeriformes
Corvidae
Iran
Opis:
Cysticercosis is an infection with the larval (cysticercus) stage of Taenia spp. that it is seen as cysts in various human and animal tissues. In this study, pathologic findings of hepatic cysticercosis in a rook (Corvus frugilegus) is described. To our knowledge, there is no report on hepatic cysticercosis in rook and this study shows that rooks may play a role as intermediate hosts in the transmission of parasitic infections.
Źródło:
Annals of Parasitology; 2014, 60, 4
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
From waste to treat waste : exploitation of marble dust as a harmful pollutant to a green adsorbent for dyes and heavy metals from industrial wastewater
Autorzy:
Attia, H.A.
Farghaly, Mohamed G.
Saleh, A.M.
Abdel Khalek, M.A.
Powiązania:
https://bibliotekanauki.pl/articles/2175448.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
marble dust
pollutant
adsorbent
dye
heavy metals
textile wastewater
Opis:
The marble dust as a harmful industrial waste of marble fabrication was evaluated as aneconomical and efficient green adsorbent for Acid Red-1 dye and lead ions. The XRD, XRF, particle size, surface area and zeta-potential measurements were used to characterize the marble dust. The removal efficiency was optimized by studying several parameters such as pH, temperature, contact time, adsorbent dose and initial concentration. The optimum removal was achieved at pH 6, 20°C after 60 min in the presence of 2.5g/L marble dust. The rates of adsorption were found to follow the pseudo-second-order model. The results showed better fitting to Freundlich isotherm. The thermodynamic studies revealed that the adsorption process is spontaneous, exothermic and favorable at low temperature. The free energy (∆G°), enthalpy (∆H°), and entropy (∆S°) changes were calculated to predict the nature of adsorption.The removal efficiency was improved by calcination of the marble at 700°C. Application for textilewastewater showed high removal efficiency up to 99.9%of inorganic and organic pollutants. The product of treatment was used in the concrete and bricks manufactured, so there is nogeneration of second-order pollutants.
Źródło:
Physicochemical Problems of Mineral Processing; 2022, 58, 6; art. no. 154007
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of candidate gene SalT and designing markers involving in salt tolerance of Vietnamese rice landraces
Autorzy:
Trung, K.H.
Khoa, N.T.
Diep, N.T.
Thuy, T.T.
Ha, D.T.T.
Cuong, T.D.
Xuan, T.D.
Trung, D.M.
Toan, N.N.
Quyen, P.T.
Linh, L.H.
Khanh, T.D.
Powiązania:
https://bibliotekanauki.pl/articles/11349.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Źródło:
International Letters of Natural Sciences; 2017, 63
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of wheat productivity in newly reclaimed soil in Egypt
Autorzy:
Zeidan, E.M.
El-Khawaga, A.
Basha, H.A.
El-Hammeed, I.M.
Powiązania:
https://bibliotekanauki.pl/articles/11039998.pdf
Data publikacji:
2005
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura; 2005, 60; 113-121
0365-1118
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of probiotic and yeast culture supplementation on selected biochemical and immunological parameters of growing lambs
Autorzy:
Mahmoud, M.M.
Youssef, I.M.I.
Abd El-Tawab, M.M.
Bakr, H.A.
Eissa, N.A.
Hassan, M.S.
Giadinis, N.D.
Milewski, S.
Baumgartner, W.
Sobiech, P.
Powiązania:
https://bibliotekanauki.pl/articles/2087359.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lambs
probiotic
yeast culture
Saccharomyces cerevisiae
immunoglobulins
Źródło:
Polish Journal of Veterinary Sciences; 2020, 23, 1; 5-12
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of process parameters in removing wastewater impurities via progressive freeze crystallization
Autorzy:
Mazzam, A.A.
Hamizlan, H.A.
Jamal Ikhsan, I.Z.A.I.
Bakar, M.N.F.
Ab Hamid, F.H.
Powiązania:
https://bibliotekanauki.pl/articles/24200623.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
environmental management
crystallization
wastewater treatment
tricholorophenol
zarządzanie środowiskiem
krystalizacja
oczyszczanie ścieków
tricholorofenol
Opis:
Purpose: The research aims to investigate the effect of the process parameter of progressive freeze concentration to eliminate tricholorophenol in wastewater. Design/methodology/approach: A stainless steel crystallizer was used throughout the experiment. Simulated wastewater containing trichlorophenol (TCP) was used as a sample solution, and ethylene glycol was utilized as a coolant to induce the heat transfer at a very low temperature. Progressive freeze crystallization (PFC) is an approach to purify water by implementing the fundamental concept of difference freezing point. In short, the PFC system produces ice-crystal layer by layer on a cooled surface until it forms a large and single-crystal block, leaving the impurities in the mother liquor. Findings: It is established that operating time and initial concentration influence the PFC performance. The findings show that the intermediate operating time gave the highest removal of TCP in wastewater. Meanwhile, for the effect of initial concentration, it was discovered that the lowest initial concentration resulted in the best TCP reduction with high purity of the water was obtained. Research limitations/implications: The results can be complemented by studies of the effect of coolant temperature and solution movement. These two parameters are believed to potentially improve the PFC performance. Practical implications: The findings can be implemented to select the optimal operating condition to treat the wastewater, especially in the industrial area with hazardous TCP. Originality/value: The obtained results testify to the predominant influence of operating time and initial concentration on the PFC performance in eliminating TCP in wastewater.
Źródło:
Archives of Materials Science and Engineering; 2023, 119, 2; 56--61
1897-2764
Pojawia się w:
Archives of Materials Science and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
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