Wyniki wyszukiwania

1

Decomposition analysis of energy efficiency in China’s Beijing-Tianjin-Hebei region

100%

Li W., Zhang H.

Polish Journal of Environmental Studies

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2017

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tom 26

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nr 1

This manuscript first gives a separate decomposition analysis on the factors that affect regional energy efficiency in Beijing, Tianjin, and Hebei, China, during 2005-12 based on the logarithmic mean divisia index (LMDI) model, and then makes an in-depth investigation on impact factors in the Beijing-Tianjin-Hebei (BTH) region of China. Energy efficiency is decomposed into carbon productivity, carbon emission coefficient, energy structure, energy intensity, economic output, and reciprocal effect of per capita energy consumption. Different impact factors in various areas have diverse influences on energy efficiency due to the evident regional differences in Beijing, Tianjin, and Hebei. On the whole, the primary positive driver of energy efficiency is the economic output in the BTH region, followed by carbon productivity, carbon emission coefficient, and energy structure. However, energy intensity and the reciprocal effect of per capita energy consumption are the major inhibitory factors. Finally, we emphasize a series of policy implications to speed up the achievement of China’s 12th Five-Year Plan goal. It also has the vital practical significance of carrying out energy policy and a low-carbon economic development strategy in the BTH region in the future.

2

Experimental study of the aerodynamics of sail in natural wind

100%

Zeng X., Zhang H.

Polish Maritime Research

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2018

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tom 25

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nr Special Issue S2

In order to evaluate the impacts of a motor vessel after installing wind sails, the aerodynamics of the sail should be accurately calculated. However most of the research on sails are based on stable wind instead of natural wind which is changing horizontally and vertically. In this paper wind tunnel tests are carried out based on stable wind field and simulated natural wind field, the results shown that there are 16–44% decrease in natural wind in terms of lifting coefficient and 11–42% decrease for drag coefficient. This would provide a valuable reference to the effectiveness evaluation of the impact of sails for sail assisted ships

3

Cellular toxicity of aluminum in root tips of Vicia faba L.

100%

Zhang H., Zou J.

Polish Journal of Environmental Studies

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2020

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tom 29

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nr 2

4

Fuzzy method and neural network model parallel implementation of multi-layer neural network based on cloud computing for real time data transmission in large offshore platform

100%

Zhang H., Wei Q.

Polish Maritime Research

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2017

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tom 24

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nr Special Issue S2

With the rapid development of electronic technology, network technology and cloud computing technology, the current data is increasing in the way of mass, has entered the era of big data. Based on cloud computing clusters, this paper proposes a novel method of parallel implementation of multilayered neural networks based on Map-Reduce. Namely in order to meet the requirements of big data processing, this paper presents an efficient mapping scheme for a fully connected multi-layered neural network, which is trained by using error back propagation (BP) algorithm based on Map-Reduce on cloud computing clusters (MRBP). The batch-training (or epoch-training) regimes are used by effective segmentation of samples on the clusters, and are adopted in the separated training method, weight summary to achieve convergence by iterating. For a parallel BP algorithm on the clusters and a serial BP algorithm on uniprocessor, the required time for implementing the algorithms is derived. The performance parameters, such as speed-up, optimal number and minimum of data nodes are evaluated for the parallel BP algorithm on the clusters. Experiment results demonstrate that the proposed parallel BP algorithm in this paper has better speed-up, faster convergence rate, less iterations than that of the existed algorithms

5

Amentoflavone prevents sepsis - associated acute lung injury through Nrf2-GCLc - mediated upregulation of glutathione

100%

Zong Y., Zhang H.

Acta Biochimica Polonica

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2017

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tom 64

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nr 1

6

Adsorption of ceftazidime from aqueous solution by multi-walled carbon nanotubes

100%

Zhang H., Hu X.

Polish Journal of Environmental Studies

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2015

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tom 24

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nr 5

Antibiotic contamination of water has become a problem that cannot be ignored. However, existing water treatment technologies at home and abroad couldn’t remove the antibiotics efficiently in the water environment. Our study investigated the adsorption of ceftazidime in aqueous solutions by multiwall carbon nanotubes (MWCNTs), and examined the impact of such factors as pH value, ion strength, and concentration of organic matter on the adsorption process. The results showed that, when the dosage of MWCNTs was 1.6 g/L and the initial concentration of ceftazidime was 30 mg/L, the removal rate of the ceftazidime came up to 80-90%. The pH value of solution, the ion strength, and organic concentrations showed minimal or negligible impacts. The Freundlich isotherm fit the adsorption well. Kinetic analysis was conducted using models. The regression results showed that the adsorption kinetics were accurately represented by the pseudo-second order model (R²>0.99). Based on the pseudo-second order model, the equilibrium adsorption capacity of MWCNTs was 14.79 mg/g.

7

Pollution characteristics of heavy elements in Nanchang, China street dust

85%

Xu X., Zhang H., Xiong X., Zhang H., Zeng H., Yang W.

Polish Journal of Environmental Studies

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2020

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tom 29

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nr 1

8

Antioxidant and tyrosinase inhibitory properties of aqueous ethanol extracts from monofloral bee pollen

81%

Zhang H., Wang X., Wang K., Li C.

Journal of Apicultural Science

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2015

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tom 59

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nr 1

9

Transfer to wheat [Triticum aestivum] of small chromosome segments from rye [Secale cereale] carrying disease resistance genes

81%

Fu S., Tang Z., Ren Z., Zhang H.

Journal of Applied Genetics

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2010

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tom 51

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nr 2

115-121

One hundred wheat lines, derived from monosomic additions of chromosome 1R of rye inbred line R12 (Chinese rye), were detected by PCR amplification using rye-specific primer pairs. Only 5 wheat lines, 1R296, 1R330, 1R314, 1R725,and 1R734, were determined to contain rye chromatin. While 1R296 and 1R330 were highly susceptible to stripe rust and powdery mildew, 1R314, 1R725 and IR734 were highly resistant to both diseases. Acid-polyacrylamide gel electrophoresis showed that the ω-secalin bands were absent in 1R314, but present in the other 4 wheat lines. Genomic in situ hybridization indicated that 1R296, 1R330, and 1R725 contained translocations involving the whole short arm of chromosome 1R. However, 1R314 and 1R734 contained a pair of wheat chromosomes with small, terminal, rye-derived chromosome segments. The results suggest that the translocation breakpoint of 1 RS in 1R314 was located between the Sec-1 locus and the disease-resistance loci, while in line 1R734, the breakpoint was located between the Sec-1 locus and the centromere. Taking account of the improved disease resistance of 1R725,1R314 and 1R734, the chromosome arm 1 RS of R12 may represent new and valuable disease resistance resources for wheat improvement.

10

The Impact of energy de-subsidization policy in 2030: a dynamic CGE model in China

81%

Li W., Zhang H., Zhang S.

Polish Journal of Environmental Studies

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2019

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tom 28

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nr 4

The issues of energy shortage and environmental pollution caused by energy subsidies are more serious in a massive energy-consuming country like China. Since the Group of 20 summit meeting on September 4, 2016, government leaders have confirmed that they will phase out inefficient fossil fuel subsidies. In this paper, we construct a computable general equilibrium model to analyze the impact of different de-subsidization policies based on possible reduction targets, mitigation routes, and reform periods. The results show that a nonlinear tendency in gross domestic product will emerge with the increasing intensity of de-subsidization targets. Moreover, there is a general macroeconomic recession both in output and consumption, where the prices have generally increased. The results also show that various mitigation routes of de-subsidization policy are slightly significant economically. However, the total removal of energy subsidy in one year will obtain an opposite conclusion with better social welfare and gross domestic product, but more carbon emissions and energy consumption. Overall, a medium target (50-90%) with an average reduction during 2010-2030 could be more suitable for China.

11

Nutrient allocation and photochemical responses of Populus × canadensis ‘Neva’ to nitrogen fertilization and exogenous Rhizophagus irregularis inoculation

81%

Wu F., Zhang H., Fang F., Tang M.

Acta Physiologiae Plantarum

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2018

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tom 40

|

nr 08

12

First report on the bacterial diversity in the distal gut of dholes (Cuon alpinus) by using 16S rRNA gene sequences analysis

81%

Chen L., Zhang H., Liu G., Sha W.

Journal of Applied Genetics

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2016

|

tom 57

|

nr 2

13

Rabbit protein adsorption properties of copper (II) ion-polluted soil

81%

Zhang Y., Zhang H., Yang W.

Polish Journal of Environmental Studies

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2015

|

tom 24

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nr 5

14

Macro and structural effects of carbon tax in China based on the ECGE model

81%

Wu Q., Li C., Zhang H., Tian J.

Polish Journal of Environmental Studies

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2019

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tom 28

|

nr 4

Rapid economic development has brought great pressure to China. Carbon tax could be an ideal economic tool to cope with the environmental pressure. The implementation of carbon tax will exert an influence on the national and sectoral economies as well as reduction. However, few researchers have focused on the carbon tax effect at the sectoral level. Based on SAM 2012, this study develops an ECGE model consisting of the environment module. Then the macro and structural effects of carbon tax are simulated at tax rates of 10-100 yuan/t CO2 in China. Simulation results show that compared with the baseline: 1) Carbon tax has a mild strike on the GDP of China and is effective at reducing emissions. Furthermore, we found that a carbon tax rate of 70 yuan/t CO2 may be an appropriate rate to achieve the Chinese reduction target of carbon intensity in the year 2020. 2) Carbon tax induces an output shrinkage in energy or high-energy-consuming industries by 0.95-7.65%, while there is a slight increase in low-energy-consuming industries. The mining and washing of coal industry (coal) experiences the largest decrease in CO2 emissions and the light industry (lindus) experiences the sharpest decline in carbon intensity.

15

An overview of ecohydrology of the Yellow River delta wetland

81%

Zhang H., Chen X., Luo Y.

International Journal of Ecohydrology and Hydrobiology

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2016

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tom 16

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nr 1

16

Functional characterization of human Kindlin-2 core promoter identifies a key role of SP1 in Kindlin-2 transcriptional regulation

81%

Khan A., Shimokawa T., Stromblad S., Zhang H.

Cellular and Molecular Biology Letters

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2011

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tom 16

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nr 4

Kindlin-2 is a recently identified FERM and PH domain containing integrin interacting protein. Kindlin-2 is ubiquitously expressed in normal tissues. So far, much effort has been spent exploring the functional aspects of Kindlin-2. However, the transcriptional regulation of Kindlin-2 has not yet been investigated. In this study we identified and functionally characterized the promoter of the human Kindlin-2 gene. We show that the core promoter of Kindlin-2 is a 39 base pair long GC rich fragment located −122/-83 upstream of the Kindlin-2 transcription start site. Functional characterization of this core promoter region by both in silico as well as in vitro/in vivo analysis shows that the transcription factor SP1 plays an important role in regulation of Kindlin-2 expression.

17

BAG2 structure, function and involvement in disease

81%

Qin L., Guo J., Zheng Q., Zhang H.

Cellular and Molecular Biology Letters

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2016

|

tom 21

18

Two species of the genus Kalicephalus Molin, 1861 (Nematoda, Diaphanocephaloidea) from the water monitor, Varanus salvator (Laurenti, 1768) in Guangdong Province, China

81%

Zhang H., Zhang S., Zhang L.

Acta Parasitologica

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2011

|

tom 56

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nr 1

Two species of Kalicephalus Molin, 1861 were collected from the intestine of Varanus salvator (Laurenti, 1768) from Guangdong Wildlife Rescue Centre, Guangzhou, Guangdong Province, China. Kalicephalus (Kalicephalus) guangdongensis sp. nov. is similar to K. (K.) schadi Ogden, 1966 and K. (K.) schadi fotedari Kalia et Nayital, 1989 in having extremely long spicules, but differs from the latter in the relative length of spicules (spicules longer than the total body length instead of spicules almost three quarters of the total body length). Kalicephalus (Kalicephalus) schadi fotedari Kalia et Nayital, 1989 is reported for the first time in China, and Varanus salvator is a new host record.

19

Overexpression of suadea salsa S-adenosylmethionine synthetase gene promotes salt tolerance in transgenic tobacco

81%

Qi Y.-C., Wang F.-F., Zhang H., Liu W.-Q.

Acta Physiologiae Plantarum

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2010

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tom 32

|

nr 2

The suadea salsa full-length S-adenosylmethionine synthetase (SsSAMS2) was introduced into tobacco (Nicotiana tabacum L.) by Agrobacterium tumefaciens-mediated transformation. The gene transformation and expression in tobacco were confirmed by PCR, RT-PCR and Northern blotting analysis. Several transgenic lines (ST lines) overexpressing SsSAMS2 gene under the control of cauliflower mosaic virus 35S promoter showed more seeds number and weight, and accumulated higher free total polyamines (PAs) than wild-type plants (WT lines) and transformants with blank vector (BT lines). Salt stress-induced damage was attenuated in these transgenic plants, in the symptom of maintaining higher photosynthetic rate and biomass. These results that the transgenic plants overexpressing suadea salsa SAMS2 are more tolerant to salt stress than wild-type plants suggest that PAs may play an important role in contributing salt tolerance to plants.

20

Detecting urban growth patterns and wetland conversion processes in a natural wetlands distribution area

81%

Cai Y., Zhang H., Pan W.

Polish Journal of Environmental Studies

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2015

|

tom 24

|

nr 5

Ograniczanie wyników

Decomposition analysis of energy efficiency in China’s Beijing-Tianjin-Hebei region

Experimental study of the aerodynamics of sail in natural wind

Cellular toxicity of aluminum in root tips of Vicia faba L.