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Tytuł:
Challenges to Sustainability of Resource-exhausted Cities:A Case Study of Lengshuijiang, China
Wyzwania dla zrównoważoności odnoszące się do miast pozbawionych surowców: przypadek Lengshuijiang w Chinach
Autorzy:
Zuo, G.
Chen, Q.
Powiązania:
https://bibliotekanauki.pl/articles/371516.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Komitet Człowiek i Środowisko PAN
Tematy:
sustainable development
resource-exhausted cities
China
rozwój zrównoważony
wyczerpanie surowców
Chiny
Opis:
Resource-based cities were once the backbone of Chinese economy for decades. When natural resources were depleted, however, these cities become negative assets of China and urgently need sustainable transition. Given the vast number of resource-exhausted cities in China, their success transitions not only mean much to themselves but also have great implications on China’s sustainability. Taking Lengshuijiang, one of the 67 resource-exhausted cities of China, as a case, this article investigated sustainable transition of resource-exhausted cities in Chinese context. Firstly, we reviewed the development problems it faces in the past two decades. Secondly, we examined the countermeasures it took since 2009. Although this article mainly focuses on Lengshuijiang, the findings and discussion will provide insights for other resource-exhausted cities of China and other parts of the word in reviewing their development strategies as most of them are facing similar sustainable challenges.
Miasta bazujące na surowcach stanowiły trzon chińskiej gospodarki od dziesięcioleci. Gdy zasoby naturalne zostały wyczerpane, miasta te stały się ujemnymi aktywami Chin i pilnie potrzebują zrównoważonych przekształceń. Biorąc pod uwagę dużą liczbę takich miast, ich sukces nie tylko będzie ważny dla nich samych, ale odegra również istotną rolę w zrównoważonym rozwoju całych Chin. Jako przykład wybrano Lengshuijiang, jedno z 67 miast, które dotknęło wyczerpanie zasobów, analizując zrównoważoność dokonanych tam przekształceń. Po pierwsze oceniono problemy rozwojowe występujące w ciągu ostatnich dwudziestu lat. Po drugie, zbadano skuteczność środków zaradczych, wprowadzonych w 2009 r. Przykład miasta Lengshuijiang stanowi punkt odniesienia dla strategii rozwojowych innych miast dotkniętych problemem wyczerpania surowców tak w Chinach, jak i w innych państwach świata, ponieważ większość z nich to staje w obliczu podobnych wyzwań.
Źródło:
Problemy Ekorozwoju; 2015, 10, 1; 89-98
1895-6912
Pojawia się w:
Problemy Ekorozwoju
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Neotectonic activity of the Skawa River Fault Zone (Outer Carpathians, Poland)
Autorzy:
Zuchiewicz, W.
Tokarski, A. K
Świerczewska, A.
Cuong, N. Q.
Powiązania:
https://bibliotekanauki.pl/articles/191395.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
neotectonics
morphotectonics
fractured clasts
seismic hazard
Skawa River valley
Outer Carpathians
Polska
Opis:
The Skawa River catchment basin in the Outer Western Carpathians of Poland is situated upon morphostructures showing differentiated mobility in the Quaternary. Long profile of river channel reveals the lowest values of concavity index among the Polish Outer Carpathian rivers, pointing to low degree of river profile maturity, particularly in its middle reach coinciding with a zone of abnormally high river bed gradients. The Skawa River valley utilizes in its middle and northern reaches the Skawa River Fault Zone (SRFZ) composed of differently oriented oblique-slip faults, visible on DEM images as well-marked, rectilinear topolinea- ments. The NNW–SSE to N–S faults in the Silesian Nappe were probably reactivated in Late Pleistocene times as normal faults downthrowing their eastern sides, as shown by abnormally high position of the Weichselian Early Glacial straths on the western valley side. Such an episode of neotectonic activity (late Early Glacial times of the Last Glacial stage) has not been recognized so far in the other river valleys of the Polish segments of the Western Outer Carpathians. We conclude that some of the NNW–SSE to N–S trending faults were reactivated as strike-slip faults. This would conform to the present day stress arrangement within the Polish segment of Carpathians. Moreover, deformations of the Pleistocene straths between Osielec in the south and Wadowice–Zator areas in the north appear to indicate both pre-Weichselian and Weichselian reactivation of the Silesian and – to a lesser extent – Magura frontal thrusts. These movements continued also in the Holocene, although to a smaller extent, most probably due to moderately strong and/or strong earthquakes of magnitudes exceeding 5.5–5.7, resulting in clast fracturing within Holocene alluvium, particularly strong on the Silesian frontal thrust, and less intensive on the Carpathian marginal and Magura frontal thrusts, as well as on some faults that belong to the SRFZ. We are convinced that the record of seismically-induced clast fracturing on one of major fault zones in the Outer Carpathians should lead to revision of the hitherto-existing seismic risk assessment of this region, and particularly of the city of Kraków and other urbanized areas, as well as the planned artificial water reservoir at Świnna Poręba.
Źródło:
Annales Societatis Geologorum Poloniae; 2009, 79, No 2; 67-93
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Neotectonic activity of the Skawa River Fault Zone (Quter Carpathians, Poland)
Autorzy:
Zuchiewicz, W.
Tokarski, A. K.
Świerczewska, A.
Cuong, N. Q.
Powiązania:
https://bibliotekanauki.pl/articles/191887.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
neotectonics
morphotectonics
fractured clasts
seismic hazard
Skawa River valley
Outer Carpathians
Polska
Opis:
The Skawa River catchment basin in the Outer Western Carpathians of Poland is situated upon morphostructures showing differentiated mobility in the Quaternary. Long profile of river channel reveals the lowest values of concavity index among the Polish Outer Carpathian rivers, pointing to low degree of river profile maturity, particularly in its middle reach coinciding with a zone of abnormally high river bed gradients. The Skawa River valley utilizes in its middle and northern reaches the Skawa River Fault Zone (SRFZ) composed of differently oriented oblique-slip faults, visible on DEM images as well-marked, rectilinear topolinea-ments. The NNW–SSE to N-S faults in the Silesian Nappe were probably reactivated in Late Pleistocene times as normal faults downthrowing their eastern sides, as shown by abnormally high position of the Weichselian Early Glacial straths on the western valley side. Such an episode of neotectonic activity (late Early Glacial times of the Last Glacial stage) has not been recognized so far in the other river valleys of the Polish segments of the Western Outer Carpathians. We conclude that some of the NNW-SSE to N–S trending faults were reactivated as strike-slip faults. This would conform to the present day stress arrangement within the Polish segment of Carpathians. Moreover, deformations of the Pleistocene straths between Osielec in the south and Wadowice-Zator areas in the north appear to indicate both pre-Weichselian and Weichselian reactivation of the Silesian and - to a lesser extent - Magura frontal thrusts. These movements continued also in the Holocene, although to a smaller extent, most probably due to moderately strong and/or strong earthquakes of magnitudes exceeding 5.5-5.7, resulting in clast fracturing within Holocene alluvium, particularly strong on the Silesian frontal thrust, and less intensive on the Carpathian marginal and Magura frontal thrusts, as well as on some faults that belong to the SRFZ. We are convinced that the record of seismically-induced clast fracturing on one of major fault zones in the Outer Carpathians should lead to revision of the hitherto-existing seismic risk assessment of this region, and particularly of the city of Kraków and other urbanized areas, as well as the planned artificial water reservoir at Świnna Poręba.
Źródło:
Annales Societatis Geologorum Poloniae; 2009, 79, No 1; 67-93
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Procesy ekstremalne w strefach aktywnych uskoków przesuwczych : przykłady z północnego Wietnamu
Autorzy:
Zuchiewicz, W.
Cuong, N. Q.
Powiązania:
https://bibliotekanauki.pl/articles/294448.pdf
Data publikacji:
2008
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
procesy ekstremalne
aktywny uskok przesuwczy
Wietnam
Źródło:
Landform Analysis; 2008, 8; 94-97
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quaternary tectonics of the Red River Fault Zone in Vietnam - a morphotectonic approach
Czwartorzędowa tektonika strefy uskoku Rzeki Czerwonej w Wietnamie - podejście morfotektoniczne
Autorzy:
Zuchiewicz, W.
Cuong, N. Q.
Powiązania:
https://bibliotekanauki.pl/articles/183637.pdf
Data publikacji:
2009
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
morfotektonika
czwartorzędowa tektonika
strefa uskoku Rzeki Czerwonej
Wietnam
morphotectonics
Quaternary tectonics
Red River Fault Zone
Vietnam
Opis:
Rozmiary czwartorzędowego, prawoskrętnego przemieszczenia sieci drenażu w wietnamskim segmencie strefy uskoku Rzeki Czerwonej wyniosły 0.4-5.3 km, śr. 1.1-2 km, a odpowiadające im prędkości uskokowania zmieniały się od 0.43-1.1 mm/rok dla poszczególnych segmentów uskoku do 5.5-7.8 mm/rok dla przemieszczenia skumulowanego. Zuskokowane terasy rzeczne i stożki napływowe zostały uformowane głównie w późnym plejstocenie i holocenie, z wyjątkiem teras najwyższych (40-50 m), wieku środkowoplejstoceńskiego.
Źródło:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2009, 35, 2/1; 367-374
0138-0974
Pojawia się w:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Green ultrasound-assisted extraction of anthocyanin and phenolic compounds from purple sweet potato using response surface methodology
Autorzy:
Zhu, Z.
Guan, Q.
Guo, Y.
He, J.
Liu, G.
Li, S.
Barba, F.J.
Jaffrin, M.Y.
Powiązania:
https://bibliotekanauki.pl/articles/24695.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
ultrasound
extraction
anthocyanin
phenolic compound
sweet potato
response surface methodology
Źródło:
International Agrophysics; 2016, 30, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal Decomposition Kinetics of Hexanitrohexaazaisowurtzitane/Ammonium Perchlorate
Autorzy:
Zhu, Y.-L.
Wang, K.-K.
Shan, M.-X.
Zheng, X.-D.
Jiao, Q.-J.
Wang, J.-S.
Powiązania:
https://bibliotekanauki.pl/articles/358067.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
hexanitrohexaazaisowurtzitane
ammonium perchlorate
thermal analysis
thermal decomposition kinetics
Opis:
The thermal decomposition kinetics of hexanitrohexaazaisowurtzitane/ ammonium perchlorate (HNIW/AP) have been investigated by thermogravimetrydifferential scanning calorimetry-mass spectrometry (TG-DSC-MS) simultaneous analysis. TG showed that there were three weight loss processes for the thermal decomposition of the HNIW/AP mixture. The first was ascribed mainly to the thermal decomposition of HNIW, while the second and third were assigned to that of AP. The presence of AP has little effect on the thermal decomposition process of the HNIW component. The apparent activation energy of the thermal decomposition of the HNIW component, calculated by the Kissinger method, was little changed compared to that of neat HNIW. The addition of HNIW to AP caused the onset and end temperatures of the thermal decomposition to be decreased and the decomposition process to be shortened. The high-temperature and lowtemperature decomposition processes of AP became blurred in the presence of HNIW, and this was supported by the MS results.
Źródło:
Central European Journal of Energetic Materials; 2016, 13, 1; 149-159
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular cloning, bioinformation analysis and expression of the strictosidine synthase in Dendrobium officinale
Autorzy:
Zhu, Y.-F.
Fan, H.-H.
Li, D.-H.
Jin, Q.
Zhang, C.-M.
Zhu, L.-Q.
Song, C.
Cai, Y.-P.
Lin, Y.
Powiązania:
https://bibliotekanauki.pl/articles/12715947.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
The enzyme strictosidine synthase (STR, EC: 4.3.3.2) plays a key role in the biosynthetic pathway of terpenoid indole alkaloid (TIA). It catalyzes the condensation of the tryptamine and secologanin to form 3α(S)-strictosidine, which is the common precursor of all TIAs. In this paper, a STR gene designated as DoSTR (GenBank: KX068707) was first cloned and characterized from Dendrobium officinale with rapid amplified cDNA ends method (RACE). DoSTR has a length of 1380bp with 1179bp open reading frame encoding 392 amino acids. BlastP analyses showed that its amino acid sequence was classified into Str_synth superfamily. qRT-PCR showed that DoSTR was expressed in all tissues tested, with a significantly higher level in flower and the lowest in stem. Four different treatments with MeJA, SA, ABA and AgNO₃, respectively, could induce the DoSTR expression to a different extent. And the effect of MeJA was the most obvious and transcript level of DoSTR induced by MeJA was 20.7 times greater than that of control at 48 hours after treatment. Furthermore, it was found that DoSTR was localized in vacuole through transient expression in tobacco. The characterization and expression of DoSTR can help in further studying the role of DoSTR in the biosynthesis of TIAs in D. officinale. This study may throw light on the alkaloid biosynthesis pathway of D. officinale.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2020, 19, 3; 111-124
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pre-concentration of graphite and LiCoO2 in spent lithium-ion batteries using enhanced gravity concentrator
Autorzy:
Zhu, X,-N.
Tao, Y.-J.
He, Y.-Q.
Zhang, Y.
Sun, Q.-X.
Powiązania:
https://bibliotekanauki.pl/articles/109609.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
spent lithium-ion batteries
electrode material
resource utilization
pre-concentration
enhanced gravity concentrator
Opis:
The pre-concentration of electrode material of spent lithium-ion battery has great significance on the resource utilization and environmental protection. The feasibility of separation of graphite and LiCoO2 based on density difference using the enhanced gravity concentrator was verified in this paper. Combustion characteristics of LiCoO2 and graphite were used to propose a simple evaluation index of separation efficiency. Separation tests were carried out to specify the influence of operating parameters on the separation efficiency. Moreover, the effect of particle size on the separation performance was studied. Combustion characteristics results showed that mass loss of graphite was much greater than that of LiCoO2. Thus, mass loss were used to evaluate the purity of product. Effective separation of graphite and LiCoO2 was achieved by the enhanced centrifugal separator. Separation results showed that increasing centrifugal force decreased the overflow yield and increased the graphite content of the overflow stream. In addition, yield of overflow grew an increase in fluidization water pressure, while the purity of graphite in overflow decreased. The effect of particle size on the separation efficiency was also significant, the separation efficiency decreased with the decreasing of particle size.
Źródło:
Physicochemical Problems of Mineral Processing; 2018, 54, 2; 293-299
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The off-design performance prediction of axial compressor based on a 2D approach
Autorzy:
Zhu, X. C.
Hu, J. F.
Ou-Yang, H.
Tian, J.
Qiang, X. Q.
Du, Z. H.
Powiązania:
https://bibliotekanauki.pl/articles/281612.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
two-dimensional
compressor
streamline curvature
deviation
loss model
Opis:
The two-dimensional compressor flow simulation approach has always been a very valuable tool in compressor preliminary design studies, as well as performance predictions. In this context, a general development of the streamline curvature (SLC) method is elucidated firstly. Then a numerical method based on SLC is developed to simulate the internal flow of the compressor according to the development analysis and conclusion. Two certain transonic axial compressors are calculated by this 2D method. The speed lines and span-wise aerodynamic parameters are compared with the experiment data in order to demonstrate the method presented in this paper.
Źródło:
Journal of Theoretical and Applied Mechanics; 2013, 51, 3; 523-531
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Deashing and desulphurization of fine oxidized coal by falcon concentrator and flotation
Autorzy:
Zhu, X.
Tao, Y.
Sun, Q.
Man, Z.
Xian, Y.
Powiązania:
https://bibliotekanauki.pl/articles/951856.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
fine oxidized coal
desulphurization
deashing
flotation
enhanced gravity separation
Opis:
Flotation and enhanced gravity separation based on different separation principles were carried out to investigate the desulphurization and deashing efficiency of fine oxidized coal. Surface properties of fresh and oxidized coals were tested by XPS and results showed that the contents of hydrophobic functional groups decreased while the content of hydrophilic functional groups increased after oxidization. Floatability and density analysis results showed that the floatability of coal samples decreased sharply because of oxidation, however, density composition of coal sample only had slight changes. Separation results showed that yields of gravity concentrates outclassed that of flotation concentrates, meanwhile, ash contents and sulfur contents of gravity concentrates were far lower than that of flotation concentrates. Yields and ash contents increased with the collector dosage and achieved to be 17.83 and 26.94% respectively when the collector dosage was 1600 g•Mg-1. Yields and ash contents of gravity concentrates decreased with the centrifugal force and increased with the recoil water flow with similar sulfur content. Clean coal with yield of 53.86%, ash content of 9.81%, sulfur content of 1.47% and with a corresponding desulphurization efficiency of 44.53% was achieved at centrifugal force of 107 g and recoil water flow of 13.3 dm3•min-1. For fine oxidized coal, enhanced gravity separation has a significant advantage of the separation efficiency compared with flotation.
Źródło:
Physicochemical Problems of Mineral Processing; 2016, 52, 2; 634-646
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Inquire into the marvellousness of autofrettage for mono-layered cylinders
Autorzy:
Zhu, R.
Li, Q
Powiązania:
https://bibliotekanauki.pl/articles/279729.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
thick-wall cylinder
autofrettage
load-bearing capacity
overstrain
residual stress
Opis:
With the help of the equation of optimum overstrain or depth of the plastic zone, a set of concise and accurate equations for residual stresses and their equivalent stress as well as the total stress and their equivalent stresses are obtained, and features of these stresses are discussed, thereupon the law of distribution and the varying tendency of these stresses become clearer. Safe and optimum load-bearing conditions for a cylinder are presented.
Źródło:
Journal of Theoretical and Applied Mechanics; 2014, 52, 2; 359-372
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A machine learning-based mobile robot visual homing approach
Autorzy:
Zhu, Q.
Ji, X.
Wang, J.
Cai, C.
Powiązania:
https://bibliotekanauki.pl/articles/201706.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
robot navigation
visual homing
panoramic vision sensors
machine learning
homing performance
nawigacja robotów
panoramiczny czujnik wizyjny
uczenie maszynowe
Opis:
Visual homing enables mobile robots to move towards a previously visited location solely based on panoramic vision sensors. In this paper, a SIFT-based visual homing approach incorporating machine learning is presented. The proposed approach can reduce the impact of inaccurate landmarks on the performance, and generate more precise home direction with simple model. The effectiveness of the proposed approach is verified on both panoramic image databases and actual mobile robot, experimental results reveal that compared to some traditional visual homing methods, the proposed approach exhibits better homing performance and adaptability in both static and dynamic environments.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2018, 66, 5; 621-634
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contrasted effects of biochar on maize growth and N use efficiency depending on soil conditions
Autorzy:
Zhu, Q.
Peng, X.
Huang, T.
Powiązania:
https://bibliotekanauki.pl/articles/26143.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:
Biochar amendment may improve crop growth through its nutrients and indirect fertility. However, this improvement varies in a wide range of biochars, crops, and soils. Our objectives were to determine the response of crop growth to biochar amendment and to assess the N use efficiency relative to the biochar and the soil types. In this pot experiment, we investi-gated five typical agricultural soils in China amended with two biochars. Four treatments were designed: the soil itself as a control, the soil amended with 1% biochar, the soil with fertilizer NPK, and the soil with added biochar and fertilizer. Biochar amendment increased the maize biomass and the N use efficiency in the red soil (p<0.05) but not in the other four soils (p>0.05). In the red soil, the biomass under biochar+NPK was 2.67-3.49 times higher than that of only NPK, and 1.48-1.62 times higher than that of only biochar amendment, 21-36 and 35-42% of which were contributed from biochar fertility and indirect fertility, respectively. This study indicates that biochar amendment is very plausible for the red soil but has a minor or even negative effect on the other four soils in China.
Źródło:
International Agrophysics; 2015, 29, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł

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