Autor: Bao, L. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Numerical analysis of soil settlement prediction and its application in large-scale marine reclamation artificial island project
Autorzy:: Zhao, J.
Bao, L.
Wang, G.
Powiązania:: https://bibliotekanauki.pl/articles/259183.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: microstructure
consolidation
creep
artificial island
settlement
Opis:: In an artificial island construction project based on the large-scale marine reclamation land, the soil settlement is a key to affect the late safe operation of the whole field. To analyze the factors of the soil settlement in a marine reclamation project, the SEM method in the soil micro-structural analysis method is used to test and study six soil samples such as the representative silt, mucky silty clay, silty clay and clay in the area. The structural characteristics that affect the soil settlement are obtained by observing the SEM charts at different depths. By combining numerical calculation method of Terzaghi’s one-dimensional and Biot’s two-dimensional consolidation theory, the one-dimensional and two-dimensional creep models are established and the numerical calculation results of two consolidation theories are compared in order to predict the maximum settlement of the soils 100 years after completion. The analysis results indicate that the micro-structural characteristics are the essential factor to affect the settlement in this area. Based on numerical analysis of one-dimensional and two-dimensional settlement, the settlement law and trend obtained by two numerical analysis method is similar. The analysis of this paper can provide reference and guidance to the project related to the marine reclamation land.
Źródło:: Polish Maritime Research; 2017, S 3; 4-11
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Preparation of Temperature-Sensitive Polyurethanes Based on Modified Castor Oil
Otrzymywanie termowrażliwych poliuretanów na bazie zmodyfikowanego oleju rycynowego
Autorzy:: Bao, L.-H.
Ma, H.-T.
Powiązania:: https://bibliotekanauki.pl/articles/231815.pdf
Data publikacji:: 2017
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
Tematy:: modified castor oil
temperature-sensitive polyurethane
waterproof fabrics
breathable fabrics
zmodyfikowany olej rycynowy
termowrażliwe poliuretany
tkaniny wodoodporne
tkaniny oddychające
przepuszczalność pary wodnej
Opis:: A series of temperature-sensitive polyurethanes (TSPUs) with polytetrahydrofuran glycol (PTMG), poly(ethylene glycol) (PEG) and maleic anhydride modified castor oil (MCO) as soft segments were prepared in this paper. The morphology of the temperature-sensitive polyurethane films was characterised by SEM, DSC and WAXD. SEM studies were also carried out to investigate the surface structure of coated and uncoated fabrics. The water vapour permeability of the coated and uncoated fabrics were measured as well. The results showed that a nonporous TSPU layer was formed on the coated fabric surface. The tailor -made TSPUs had one to three soft segment crystal melting point temperatures, with the lower peak temperature Tpm1 belonging to the soft segment PTMG and the higher peak temperature Tpm2 to the hydropilic soft segment PEG2000. The water vapour permeability of TSPUs coated fabrics increased with an increase in PEG2000 concentration and PEG molecular weight, but decreased with an increase in the hard segment content, and triggered around the soft segment crystal melting point temperature of TSPUs.
W pracy otrzymano termowrażliwe poliuretany (TSPU) z glikolu politetrahydrofuranowego (PTMG), glikolu polietylenowego (PEG) i bezwodnika maleinowego zmodyfikowanego olejem rycynowym (MCO). Za pomocą SEM, DSC i WAXD zbadano morfologię termowrażliwych folii poliuretanowych. Przeprowadzono również badania SEM w celu zbadania struktury powierzchni powleczonych i niepowleczonych tkanin. Zmierzono także przepuszczalność pary wodnej powleczonych i niepowleczonych tkanin.
Źródło:: Fibres & Textiles in Eastern Europe; 2017, 3 (123); 34-39
1230-3666
2300-7354
Pojawia się w:: Fibres & Textiles in Eastern Europe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Spectral Mapping Using Kernel Principal Components Regression for Voice Conversion
Autorzy:: Song, P.
Zhao, L.
Bao, Y.
Powiązania:: https://bibliotekanauki.pl/articles/177529.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: spectral mapping
overfitting
oversmoothing
discontinuity
kernel principal component regression
Opis:: The Gaussian mixture model (GMM) method is popular and efficient for voice conversion (VC), but it is often subject to overfitting. In this paper, the principal component regression (PCR) method is adopted for the spectral mapping between source speech and target speech, and the numbers of principal components are adjusted properly to prevent the overfitting. Then, in order to better model the nonlinear relationships between the source speech and target speech, the kernel principal component regression (KPCR) method is also proposed. Moreover, a KPCR combined with GMM method is further proposed to improve the accuracy of conversion. In addition, the discontinuity and oversmoothing problems of the traditional GMM method are also addressed. On the one hand, in order to solve the discontinuity problem, the adaptive median filter is adopted to smooth the posterior probabilities. On the other hand, the two mixture components with higher posterior probabilities for each frame are chosen for VC to reduce the oversmoothing problem. Finally, the objective and subjective experiments are carried out, and the results demonstrate that the proposed approach shows greatly better performance than the GMM method. In the objective tests, the proposed method shows lower cepstral distances and higher identification rates than the GMM method. While in the subjective tests, the proposed method obtains higher scores of preference and perceptual quality.
Źródło:: Archives of Acoustics; 2013, 38, 1; 39-45
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Shrinkage Porosity Criterion and Its Application to A 5.5 Ton Steel Ingot
Autorzy:: Zhang, C.
Bao, Y.
Wang, M.
Zhang, L.
Powiązania:: https://bibliotekanauki.pl/articles/382021.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: foundry industry
quality management
shrinkage porosity
ingot solidification
application of information technology
numerical simulation
przemysł odlewniczy
zarządzanie jakością
porowatość
krzepnięcie
zastosowanie technologii informatycznych
symulacja numeryczna
Opis:: In order to predict the distribution of shrinkage porosity in steel ingot efficiently and accurately, a criterion R√L and a method to obtain its threshold value were proposed. The criterion R√L was derived based on the solidification characteristics of steel ingot and pressure gradient in the mushy zone, in which the physical properties, the thermal parameters, the structure of the mushy zone and the secondary dendrite arm spacing were all taken into consideration. The threshold value of the criterion R√L was obtained with combination of numerical simulation of ingot solidification and total solidification shrinkage rate. Prediction of the shrinkage porosity in a 5.5 ton ingot of 2Cr13 steel with criterion R√L>0.21 m･℃1/2･s-3/2 agreed well with the results of experimental sectioning. Based on this criterion, optimization of the ingot was carried out by decreasing the height-to-diameter ratio and increasing the taper, which successfully eliminated the centreline porosity and further proved the applicability of this criterion.
Źródło:: Archives of Foundry Engineering; 2016, 16, 2; 27-32
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Speech emotion recognition under white noise
Autorzy:: Huang, C.
Chen, G.
Yu, H.
Bao, Y.
Zhao, L.
Powiązania:: https://bibliotekanauki.pl/articles/177301.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: speech emotion recognition
speech enhancement
emotion model
Gaussian mixture model
Opis:: Speaker‘s emotional states are recognized from speech signal with Additive white Gaussian noise (AWGN). The influence of white noise on a typical emotion recogniztion system is studied. The emotion classifier is implemented with Gaussian mixture model (GMM). A Chinese speech emotion database is used for training and testing, which includes nine emotion classes (e.g. happiness, sadness, anger, surprise, fear, anxiety, hesitation, confidence and neutral state). Two speech enhancement algorithms are introduced for improved emotion classification. In the experiments, the Gaussian mixture model is trained on the clean speech data, while tested under AWGN with various signal to noise ratios (SNRs). The emotion class model and the dimension space model are both adopted for the evaluation of the emotion recognition system. Regarding the emotion class model, the nine emotion classes are classified. Considering the dimension space model, the arousal dimension and the valence dimension are classified into positive regions or negative regions. The experimental results show that the speech enhancement algorithms constantly improve the performance of our emotion recognition system under various SNRs, and the positive emotions are more likely to be miss-classified as negative emotions under white noise environment.
Źródło:: Archives of Acoustics; 2013, 38, 4; 457-463
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Effect of bamboo vinegar powder on the expression of the immune-related genes MyD88 and CD14 in weaning piglets
Autorzy:: Qin, W.Y.
Gan, L.N.
Dong, L.
Yu, L.H.
Wu, S.L.
Bao, W.B.
Powiązania:: https://bibliotekanauki.pl/articles/2087674.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: bamboo vinegar powder
pig
antibiotics
MyD88 gene
CD14 gene
Źródło:: Polish Journal of Veterinary Sciences; 2018, 21, 3; 525-532
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: LBP gene methylation involved in mRNA expression and resistance to E. coli F18 in weaned piglets
Autorzy:: Gan, L.N.
Bao, W.B.
Wu, S.L.
Qin, W.Y.
Sun, L.
Zhao, C.X.
Powiązania:: https://bibliotekanauki.pl/articles/2087872.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: LBP gene
methylation analysis of the LBP region
E.coli F18 strain
weaned piglets
Źródło:: Polish Journal of Veterinary Sciences; 2017, 4; 643-650
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Effects of porcine epidemic diarrhea virus infection on tight junction protein gene expression and morphology of the intestinal mucosa in pigs
Autorzy:: Zong, Q.F.
Huang, Y.J.
Wu, L.S.
Wu, Z.C.
Wu, S.L.
Bao, W.B.
Powiązania:: https://bibliotekanauki.pl/articles/2087524.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: pig
tight junction protein
PEDV
diarrhea
Źródło:: Polish Journal of Veterinary Sciences; 2019, 2; 345-353
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Differential expression of Toll - like receptor 4 signaling pathway genes in Escherichia coli F18 - resistant and - sensitive Meishan piglets
Autorzy:: Liu, Y.
Gan, L.N.
Qin, W.Y.
Sun, S.Y.
Zhu, G.Q.
Wu, S.L.
Bao, W.B.
Powiązania:: https://bibliotekanauki.pl/articles/31946.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:: The Toll-like receptor 4 (TLR4) signaling pathway is an important inflammatory pathways associated with the progression of numerous diseases. The aim of the present study was to investigate the relationship between TLR4 signaling and resistance to Escherichia coli F18 in locally weaned Meishan piglets. Using a real-time PCR approach, expression profiles were determined for key TLR4 signaling pathway genes TLR4, MyD88, CD14, IFN-α, IL-1β and TNF-α in the spleen, thymus, lymph nodes, duodenum and jejunum of E. coli F18-resistant and -sensitive animals. TLR4 signaling pathway genes were expressed in all the immune organs and intestinal tissues, and the expression was generally higher in the spleen and lymph nodes. TLR4 transcription was higher in the spleen of sensitive piglets (p<0.05), but there was no significant difference in TLR4 mRNA levels in other tissues. Similarly, CD14 transcription was higher in lymph nodes of sensitive animals (p<0.05) but not in other tissues. IL-1β expression was higher in the spleen and in the duodenum of resistant piglets (p<0.05, p<0.01, respectively), and there were no significant differences in other tissues. There were also no significant differences in the expression of MyD88, TNF-α and IFN-α between sensitive and resistant piglets (p>0.05). These results further confirm the involvement of the TLR4 signaling pathway in resistance to E. coli F18 in Meishan weaned piglets. The resistance appeared to be mediated via downregulation of TLR4 and CD14, and upregulation of MyD88 that may promote the release of cytokines TNF-α, IL-1β, IFN-α and other inflammatory mediators which help to fight against E. coli F18 infection.
Źródło:: Polish Journal of Veterinary Sciences; 2016, 19, 2
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Use of fluorescence quantitative polymerase chain reaction (PCR) for the detection of Escherichia coli adhesion to pig intestinal epithelial cells
Autorzy:: Dai, C.H.
Gan, L.N.
Qin, W.U.
Zi, C.
Zhu, G.Q.
Wu, S.L.
Bao, W.B.
Powiązania:: https://bibliotekanauki.pl/articles/31510.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:: An efficient and accurate method to test Escherichia coli (E. coli) adhesion to intestinal epithelial cells will contribute to the study of bacterial pathogenesis and the function of genes that encode receptors related to adhesion. This study used the quantitative real-time polymerase chain reaction (qPCR) method. qPCR primers were designed from the PILIN gene of E. coli F18ab, F18ac, and K88ac, and the pig β-ACTIN gene. Total deoxyribonucleic acid (DNA) from E. coli and intestinal epithelial cells (IPEC-J2 cells) were used as templates for qPCR. The 2−ΔΔCt formula was used to calculate the relative number of bacteria in cultures of different areas. We found that the relative numbers of F18ab, F18ac, and K88ac that adhered to IPEC-J2 cells did not differ significantly in 6-, 12-, and 24-well culture plates. This finding indicated that there was no relationship between the relative adhesion number of E. coli and the area of cells, so the method of qPCR could accurately test the relative number of E. coli. This study provided a convenient and reliable testing method for experiments involving E. coli adhesion, and also provided innovative ideas for similar detection methods.
Źródło:: Polish Journal of Veterinary Sciences; 2016, 19, 3
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki