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Wyszukujesz frazę "Lü, Peng" wg kryterium: Autor

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    Wyświetlanie 1-9 z 9
    Tytuł:
    The End of Postcommunism? The Beginning of a Supercommunism? China’s New Perspective
    Autorzy:
    Lü, Peng
    Powiązania:
    https://bibliotekanauki.pl/articles/1929972.pdf
    Data publikacji:
    2012-10-01
    Wydawca:
    Polskie Towarzystwo Socjologiczne
    Tematy:
    postcommunism
    super-communism
    comparative analysis
    China
    Opis:
    Some scholars think that the term postcommunism is now useless because the outcomes of transition in the former state-socialist European countries have been consolidated. However, ongoing transformation in China, particularly the recent return of the influence of the state in both economic and social welfare domains, makes this country a specific model of “transition” that negates the end-ofpostcommunism thesis. I argue that even after more than two decades of moving away from the classical socialist system, postcommunism is not a redundant concept. Instead, for comparative research on EastAsia and Central and Eastern Europe, recognizing the past of actually existing socialism as well as its legacies would considerably contribute to our understanding of countries’ diverse trajectories and performances
    Źródło:
    Polish Sociological Review; 2012, 179, 3; 349-368
    1231-1413
    2657-4276
    Pojawia się w:
    Polish Sociological Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Molecular cloning, expression and characterization of Bmserpin-2 gene from Bombyx mori
    Autorzy:
    Pan, Ye
    Xia, Hengchuan
    Lü, Peng
    Chen, KePing
    Yao, Qin
    Chen, Huiqin
    Gao, Lu
    He, Yuanqing
    Wang, Lin
    Powiązania:
    https://bibliotekanauki.pl/articles/1040486.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    serpin-2
    Bombyx mori
    bioinformatics
    subcellular location
    qPCR
    Opis:
    Serpins are a broadly distributed family of protease inhibitors. In this study, the gene encoding Bombyx mori serpin-2 (Bmserpin-2) was cloned and expressed in E. coli. The Bmserpin-2 cDNA contains a 1125 bp open reading frame (ORF). The deduced protein has 374 amino-acid residues, contains a conserved SERPIN domain and shares extensive homology with other invertebrate serpins. RT-PCR analysis showed that Bmserpin-2 was expressed in all developmental stages of B. mori larvae and various larval tissues. Subcellular localization analysis indicated that Bmserpin-2 protein was located in the cytoplasm. Interestingly, real-time quantitative PCR revealed that the expression of Bmserpin-2 in the midgut of susceptible B. mori strain 306 significantly increased at 72 hours post inoculation (hpi) when infected with BmNPV. However, there was no significant increase of the Bmserpin-2 expression in resistant strain NB infected with BmNPV. Thus, our data indicates that Bmserpin-2 may be involved in B. mori antiviral response.
    Źródło:
    Acta Biochimica Polonica; 2009, 56, 4; 671-677
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Body Characteristic Index to Evaluate the Level of Risk of Heat Strain for a Group of Workers With a Test
    Autorzy:
    Lu, S.
    Peng, H.
    Gao, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/89730.pdf
    Data publikacji:
    2014
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    heat environment
    physical fitness
    anthropometric characteristic
    index
    heat strain
    środowisko cieplne
    sprawność fizyczna
    antropometria
    Opis:
    The purpose of this study was to develop a body characteristic index (BCI) based on the distribution of maximal oxygen uptake per body mass (VO2max/mass), body surface area per body mass (BSA/mass), and percentage of body fat (Fat%) to evaluate the relative level of individual physiological responses to heat strain in a group of workers. BCI was based upon the data obtained from 10 males and 10 females exercising for 60 min on a treadmill at 2 relative exercise intensities of 25% and 45% VO2max in mild, warm wet, and hot dry climate condition, separately. BCI was developed into 2 formulas, which were proved to be better predictors for heat strain responses than each individual characteristic, and more sensitive than body type to describe the distributions of individual characteristics and distinguish the differences in physiological responses to heat.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2014, 20, 4; 647-659
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A study on the sustainable management framework and the economic value evaluation for Taiwan reservoir watershed
    Badania struktury zrownowazonej gospodarki oraz ocena wartosci ekonomicznej zlewni zbiornikow wodnych na Tajwanie
    Autorzy:
    Lu, S -H
    Peng, S.-H.
    Ma, H.-W.
    Powiązania:
    https://bibliotekanauki.pl/articles/81829.pdf
    Data publikacji:
    2010
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    sustainable management
    economic value
    Taiwan
    reservoir
    watershed
    valuation method
    Opis:
    Recently lack of sustainable management for the reservoir watershed becomes a predicament for the water issues in Taiwan. The study tried to recognize the framework of the sustainable management of the Taiwan reservoir watershed and its key factors by using the analytic hierarchy process and the Delphi method. Through the identification questionnaires and the CVM (contingent valuation method), it also discussed the gap of expert and public for the identification of satisfaction, environmental protection and the potential value for the recent reservoir watershed. However, the results showed that the “natural stability” is the significant factor in the first level and the “Nature resources conservation” and “Water storage amount” are the most important factors for the detailed level. In addition, the expert opinions were not proved by public identification, and the present governance budgets are too low to respond to the potential values of public expectancy.
    W pracy przedstawiono wyniki badań przeprowadzonych dla określenia hierarchii ważności czynników ekologicznych, ekonomicznych i socjalnych związanych ze zrównoważonym zagospodarowaniem zlewni zbiorników wodnych na Tajwanie. W badaniach zastosowano metodę ankietową, w której respondenci stosując pięciostopniową skalę mieli wskazać ważność 22 określonych przez ekspertów czynników związanych z ochroną i zrównoważonym korzystaniem z zasobów środowiska, wpływających na standard życia mieszkańców oraz możliwości rozwoju gospodarczego na obszarze zlewni zbiorników wodnych. Stwierdzono, że najważniejsze znaczenie dla ludności mają czynniki ekologiczne, w szczególności zapewnienie stabilności przyrodniczej poprzez zachowanie bioróżnorodności oraz ochrony zasobów naturalnych, w tym ilości retencjonowanej wody.
    Źródło:
    Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation; 2010, 42, 1; 219-225
    0208-5771
    Pojawia się w:
    Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Facile Synthesis and Characterization of Novel CdS/BiOI Heterojunctions with Enhanced Visible-Light Photocatalytic Performances
    Autorzy:
    Fang, Shanshan
    Lu, Min
    Zhou, Man
    Li, Zhongyu
    Xu, Song
    Peng, Yanyan
    Li, Qinchi
    Lu, Dayong
    Powiązania:
    https://bibliotekanauki.pl/articles/1030343.pdf
    Data publikacji:
    2017-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    CdS/BiOI heterojunctions
    visible-light photocatalyst
    photocatalytic activity
    nanocomposites
    Opis:
    Novel CdS/BiOI heterojunction photocatalysts were successfully prepared by facile method. The as-prepared samples were characterized by transmission electron microscopy, field-emission scanning electron microscopy, X-ray diffraction, the Raman spectroscopy, UV-vis diffuse reflectance spectra, the Fourier transform infrared spectra, and photoluminescence. It was found that CdS nanoparticles were uniformly distributed on the surface of BiOI microspheres. The photodegradation tests showed that the photocatalytic efficiency was increased at first and then decreased when further increasing CdS content in the nanocomposites. The highest activity was obtained by 3%-CdS/BiOI nanocomposites. The enhanced photocatalytic performances were attributed to the matched band potentials of CdS and BiOI, which resulted in the efficient separation of photogenerated electron-hole pairs. Based on the experimental results, a reasonable photocatalytic mechanism of CdS/BiOI photocatalysts was also proposed.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 2; 263-270
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Photonic generation of broadly tunable radio-frequency signal using a reflective semiconductor optical amplifier
    Autorzy:
    Lu, Youxi
    Wang, Fei
    Gu, Jun
    Shi, Lun
    Peng, Mengmeng
    Huang, Jingxin
    Kang, Wen
    Powiązania:
    https://bibliotekanauki.pl/articles/173479.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    radio frequency signal generation
    semiconductor optical amplifiers
    four-wave mixing
    Opis:
    A novel scheme for photonic generation of broadly tunable radio frequency signal using a reflective semiconductor optical amplifier (RSOA) is demonstrated. A continuous wave emitted from the laser diode is modulated by a Mach–Zehnder modulator, then the modulated optical carrier is injected into the RSOA. Due to the four-wave mixing effect in the RSOA, the limited frequency components of the modulated signal are expanded, which directly lead to the generation of a wide frequency comb. Two optical tunable bandpass filters are parallelly connected to select the desired sidebands, which are launched into a photodetector or photomixer to generate radio frequency signal by beating. Using the proposed method, the bandwidth of generated radio frequency signal can range from 20 to 300 GHz.
    Źródło:
    Optica Applicata; 2019, 49, 1; 27-36
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polarization dependence of stimulated Brillouin scattering-based switchable microwave photonic filter
    Autorzy:
    Gu, Jun
    Wang, Fei
    Lu, Youxi
    Peng, Mengmeng
    Shi, Lun
    Kang, Wen
    Huang, Jingxin
    Powiązania:
    https://bibliotekanauki.pl/articles/173837.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    microwave photonic filter
    stimulated Brillouin scattering
    polarization dependence
    Opis:
    We propose and experimentally demonstrate a switchable microwave photonic filter based on polarization dependence of stimulated Brillouin scattering (SBS). The continuous optical wave from a tunable laser source is split into two branches. One branch serves as the SBS pump source and another branch serves as the signal source which are interactional to generate the SBS effect in the dispersion-shifted fiber. Only by adjusting the polarization direction of pump light and signal light, a frequency response switched between bandpass and notch filtering shape can be obtained.
    Źródło:
    Optica Applicata; 2019, 49, 1; 5-11
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparison of Moving Average and Differential Operation for Wheeze Detection in Spectrograms
    Autorzy:
    Hsueh, Meng-Lun
    Chen, Jin-Peng
    Lu, Bing-Yuh
    Wu, Huey-Dong
    Liu, Pei-Yi
    Powiązania:
    https://bibliotekanauki.pl/articles/31340111.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    differential operation
    moving average
    signal
    lung sound
    wheeze
    Opis:
    A moving average (MA) is a commonly used noise reduction method in signal processing. Several studies on wheeze auscultation have used MA analysis for preprocessing. The present study compared the performance of MA analysis with that of differential operation (DO) by observing the produced spectrograms. These signal preprocessing methods are not only applicable to wheeze signals but also to signals produced by systems such as machines, cars, and flows. Accordingly, this comparison is relevant in various fields. The results revealed that DO increased the signal power intensity of episodes in the spectrograms by more than 10 dB in terms of the signal-to-noise ratio (SNR). A mathematical analysis of relevant equations demonstrated that DO could identify high-frequency episodes in an input signal. Compared with a two-dimensional Laplacian operation, the DO method is easier to implement and could be used in other studies on acoustic signal processing. DO achieved high performance not only in denoising but also in enhancing wheeze signal features. The spectrograms revealed episodes at the fourth or even fifth harmonics; thus, DO can identify high-frequency episodes. In conclusion, MA reduces noise and DO enhances episodes in the high-frequency range; combining these methods enables efficient signal preprocessing for spectrograms.
    Źródło:
    Archives of Acoustics; 2022, 47, 3; 383-388
    0137-5075
    Pojawia się w:
    Archives of Acoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Error analysis of the three-phase electrical energy calculation method in the case of voltage-loss failure
    Autorzy:
    Cheng, Han-miao
    Wang, Zhong-dong
    Cai, Qi-xin
    Lu, Xiao-quan
    Gao, Yu-xiang
    Song, Rui-peng
    Tian, Zheng-qi
    Mu, Xiao-xing
    Powiązania:
    https://bibliotekanauki.pl/articles/221096.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    three-phase electrical energy meter
    voltage-loss failure
    voltage substitution
    three-phase voltage unbalance
    calculation error
    Opis:
    The single-phase voltage loss is a common fault. Once the voltage-loss failure occurs, the amount of electrical energy will not be measured, but it is to be calculated so as to protect the interest of the power supplier. Two automatic calculation methods, the power substitution and the voltage substitution, are introduced in this paper. Considering the lack of quantitative analysis of the calculation error of the voltage substitution method, the grid traversal method and MATLAB tool are applied to solve the problem. The theoretical analysis indicates that the calculation error is closely related to the voltage unbalance factor and the power factor, and the maximum calculation error is about 6% when the power system operates normally. To verify the theoretical analysis, two three-phase electrical energy metering devices have been developed, and verification tests have been carried out in both the lab and field conditions. The lab testing results are consistent with the theoretical ones, and the field testing results show that the calculation errors are generally below 0.2%, that is correct in most cases.
    Źródło:
    Metrology and Measurement Systems; 2019, 26, 3; 505-516
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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