Wyniki wyszukiwania - AGRO

1

Regional distributed energy system planning: a case study of an ecological town in China

100%

Chen J., Lu B.

Polish Journal of Environmental Studies

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2019

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tom 28

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nr 5

The regional distributed energy system is a comprehensive energy utilization system distributed on the user side, which has the characteristics of low carbon, flexibility, complementation, interconnection and so on. It is an important trend of energy system development in China in the future. Firstly, a multi-agent based information physical fusion model for regional distributed energy systems is proposed in this paper. The optimization model of the regional distributed energy system based on decision and capacity optimization is constructed at the macro and micro levels. At the same time, the regional distributed energy system is regarded as a local area “energy Internet” network. Based on graph theory and the layout optimization of an energy station, load center, energy storage center and transmission network, we constructed the “station network” layout optimization model and designed an optimization algorithm that can realize the global layout optimization of energy station, load center, energy storage center and transmission network. Finally, taking an ecological town in central China as an example, we verify the feasibility and validity of the model and method.

2

Descriptions of two new species of Austrophthiracarus Balogh et Mahunka, a newly recorded genus of ptyctimous mites from China (Acari: Oribatida: Phthiracaridae)

100%

Liu D., Chen J.

Annales Zoologici

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2014

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tom 64

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nr 2

The oribatid mite genus Austrophthiracarus Balogh et Mahunka (Phthiracaridae) is recorded for the first time from China. Two new species of Austrophthiracarus are described: A. filiformis sp. nov. and A. longisetosus sp. nov. Their morphological descriptions and illustrations are given.

3

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The halobiid bivalve genus Enteropleura and a new species from the Middle Anisian of Guangxi, Southern China

100%

Chen J., Stiller F.

Acta Palaeontologica Polonica

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2007

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tom 52

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nr 1

Enteropleura is a short−ranged early Middle Triassic bivalve genus, of importance with regard to biostratigraphy and the phylogeny of the Halobiidae. It comprises five species from the Alps, the Dinarides, Nevada, and southwestern China. Enteropleura walleri sp. nov. from the Fengshan District, northwestern Guangxi, southwestern China, occurs in the central area of the Triassic Nanpanjiang Basin. The new species is of late Middle Anisian age, penecontemporaneous to the species from Europe and Nevada. Morphologically, E. walleri sp. nov. is similar to Enteropleura jenksi from Nevada, Enteropleura bittneri from Austria, and Enteropleura lamellosa from Croatia, but it differs significantly from Enteropleura guembeli from Hungary. Two species−groups of Enteropleura thus may be differentiated, E. guembeli group and E. bittneri group. Re−examination of E. guembeli reported from the Anisian basin slope facies in Guizhou, southwestern China, confirms its taxonomic status.

4

Kinetic, isotherm and thermodynamic studies on the adsorption behavior of atrazine onto sheep manure-derived biochar

81%

Lu Y., Chen J., Zhang J., Fu C.

Polish Journal of Environmental Studies

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2019

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tom 28

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nr 4

Experimental and theoretical studies have been conducted to investigate the adsorption of atrazine in aqueous solutions by sheep manure-derived biochar synthesized at 650°C (SMB650). The results of characterization analysis showed that SMB650 possessed large specific surface area and was rich in pore structure and functional groups. The removal efficiency of atrazine by SMB650 was 95.3% under the optimum conditions, of which contact time, initial atrzaine concentration, initial solution pH, SMB650 dosage and temperature were 150 min, 1500 μg/L, 3.0, 1.6 g/L and 25ºC, respectively. The results of kinetic and isotherm studies revealed that the pseudo second-order and the Freundlich model fit the experimental data best (R2>0.98). The adsorption of atrazine onto SMB650 belonged to multi-molecular layer adsorption. The calculated thermodynamic parameters like free energy change (ΔGθ), enthalpy change (ΔHθ) and entropy change (ΔSθ) were -7.8730 to -6.2976 kJ/mol, 17.2179 kJ/mol and 0.0788 kJ/(mol·K), respectively, indicating that the adsorption process of atrazine onto SMB650 was spontaneous, endothermic and entropy-increased. The present study showed that the sheep manure-derived biochar could be used as a promising adsorbent for the removal of atrazine from aqueous solutions.

5

Morphological homology, evolution, and proposed nomenclature for bear dentition

81%

Jiangzuo Q., Liu J., Chen J.

Acta Palaeontologica Polonica

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2019

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tom 64

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nr 4

Bears are a group of carnivores with diverse diets and complicated dental structure. Several large rearrangements of dental structures are known in different lineages of bears, making the homology of dental structures between the different bears difficult to evaluate. By tracing the evolutionary processes of the two lineages of bears with the most complicated dental structure, i.e., the giant panda lineage (Ailuropodinae) and cave bear lineage (Ursinae), we were able to clarify the homology of dental structures of the two subfamilies. We define a new assemblage of dental nomenclature (based mainly on the homology to the giant panda) that can be very useful to infer the evolution of fossil bears. The evolutionary positions of some fossil bears are reviewed based on our results.

6

Effects of various factors on the viv-inducted fatigue damage in the cable of submerged floating tunnel

81%

Luo G., Chen J., Zhou X.

Polish Maritime Research

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2015

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tom 22

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nr 4

According to the modal superposition method, the vortex vibration procedure of submerged floating tunnel cable was compiled using Matlab, based on the calculated results, the fatigue damage was predicted. The effects of various factors, such as cable density, cable length, and pretension and velocity distribution on vortex induced fatigue damage in the cable were studied. The results show that velocity distribution has more effect on the cable fatigue damage than cable length, cable density and pre-tension. Secondly, cable length has also relatively effect on the cable damage fatigue, cable density and pretension has limited in a certain range

7

Characterization of Phyllosticta hostae causing Phyllosticta leaf spot on spider lily in China

81%

Yi R. H., Gan L. J., Chen J., Xu X. L.

Journal of Plant Protection Research

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2015

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tom 55

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nr 4

Leaf spot disease on the spider lily [Hymenocallis littoralis (Jacq.) Salisb.] continues to cause serious problems in China. To confirm the pathogen, the pathogenicity of isolates from diseased leaves was tested according to Koch’s postulates. The isolates were tentatively identified using morphological characteristics and confirmation was done by phylogenetic analysis of the translation elongation factor 1-alpha gene (TEF1), the actin gene (ACT), and internal transcibed spacer (ITS) sequences using neighbor-joining (NJ), maximum parsimony (MP), and Bayesian inference (BI) methods. The pathogen was identified as Phyllosticta hostae. Molecular analysis indicated very little diversity in the TEF1, ACT, and ITS gene. This is the first report of P. hostae causing leaf spot disease on spider lily in China.

8

Regulation of partial nitritation in constructed rapid infiltration system and analysis of microbial community structure

81%

Chen J., Lu Y., Ouyang Z., Zhang J.

Polish Journal of Environmental Studies

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2020

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tom 29

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nr 1

9

Effects of tillage alteration on soil water content, maize crop water potential and grain yield under subtropical humid climate conditions

81%

Chen J., He Y., Li P.

International Agrophysics

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2021

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tom 35

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nr 1

10

Comparative sensitivity of eight freshwater phytoplankton species to isoprocarb, propargite, flumetralin and propiconazol

81%

Ma J., Chen J., Wang P., Tong S.

Polish Journal of Environmental Studies

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2008

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tom 17

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nr 4

525-529

This work compared the sensitivity of three cyanobacteria (Anabaena flos-aquae, Microcystis flosaquae and Mirocystis aeruginosa) as well as five green algae (Pseudokirchneriella subcapitata, Scenedesmus quadricauda, Scenedesmus obliquus, Chlorella vulgaris and Chlorella pyrenoidosa) to four pesticides through 96h short-term chronic tests. The results showed that the toxicity of the pesticides to the organisms increased in the order: propiconazol > isoprocarb > flumetralin > propargite. A wide variation in toxicity response of the organisms was observed. The sensitivity of the organisms varied by over one order of magnitude for propargite, by over two orders of magnitude for isoprocarb and propiconazol, and by over three orders of maginitude for flumetralin. Compared to green algae, cyanobacteria were less sensitive. This may result in the alteration of green algae dominated species to those dominated by cyanobacteria, stimulating to cyanobcterial bloom during a certain period.

11

GNAS1 mutation analysis in gastrointestinal tumors

81%

Walther B. M., Walther I., Chen J., Petersen I.

Folia Histochemica et Cytobiologica

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2014

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tom 52

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nr 2

12

Recent progress, opportunities and challenges in collaborative learning and orchestrating creativity

81%

Chen J., Gao X., Yan L., Xu D.

World Scientific News

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2015

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tom 09

13

Taxonomic study of the genus Maerkelotritia Hammer, 1967 (Acari: Oribatida: Oribotritiidae) from China, with description of a new species

81%

Liu D., Niedbala W., Chen J.

Annales Zoologici

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2009

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tom 59

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nr 4

The genus Maerkelotritia is reviewed. Maerkelotritia fusifomtis sp. nov. from litter in temperate forest in Shanxi Province, China, is described, and one newly recorded species, M. krivolutzkii Märkel, 1968, is redescribed. M. kirghizica Niedbała, 2006 is considered as a new junior synonym of M. krivolutzkii. The genus Maerkelotritia is reported for the first time from China.

14

Occurrence and morphometric variability in the frugivorous bat species, Cynopterus sphinx and Rousettus leschenaulti, from a tropical rainforest, Xishuangbanna, SW-China

81%

Aeshita M., Wilske B., Zhan-Hui T., Chen J.

Acta Chiropterologica

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2006

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tom 08

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nr 2

Occurrence and morphometric variation were recorded over one and a half years for two species of frugivorous bats, Cynopterus sphinx and Rousettus leschenaulti, from six localities in and around a tropical rainforest in Xishuangbanna, SW-China. Occurrence of both species was simultaneous. The two species breed all throughout the year, but we found one distinct peak in breeding season for each species. Although the overall morphology between the two species did not differ significantly, statistical analysis of morphological characters revealed consistent spatial correlations for both taxa. Body size and forearm length for both univariate and multivariate analyses (as derived from principal component analysis) was strongly and positively correlated with morphometric variations across the locations for C. sphinx and R. leschenaulti. Both, the different peaks in breeding season and the consistent spatial correlations suggest mechanisms to help resource partitioning. The study represents the first species documentation from this area.

15

Effects of pentagastrin and IGF-1 on DNA synthesis of rumen epithelial cells of dairy cow and neonatal calf

81%

Shen Z., Su J., Chen J., Chen W.

Journal of Animal and Feed Sciences. Supplement

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2004

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tom 13

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nr 1

16

Differential effects of Nnatural palygorskite and its modified form on alleviation of heavy metals toxicity to tomato grown in soil contaminated with Cd, Pb and Zn

81%

Li S., Lei N., Chen J.

Polish Journal of Environmental Studies

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2019

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tom 28

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nr 6

17

Recent progress in monoaromatic pollutants removal from groundwater through bioremediation

81%

Chen J., Gao X., Yan L., Xu D.

International Letters of Natural Sciences

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2015

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tom 07

Monoaromatic pollutants such as benzene, toluene, ethylbenzene and mixture of xylenes are now considered as widespread contaminants of groundwater. In situ bioremediation under natural attenuation or enhanced remediation has been successfully used for removal of organic pollutants, including monoaromatic compounds, from groundwater. Results published indicate that in some sites, intrinsic bioremediation can reduce the monoaromatic compounds content of contaminated water to reach standard levels of potable water. However, engineering bioremediation is faster and more efficient. Also, studies have shown that enhanced anaerobic bioremediation can be applied for many BTEX contaminated groundwaters, as it is simple, applicable and economical.This paper reviews microbiology and metabolism of monoaromatic biodegradation and in situ bioremediation for BTEX removal from groundwater under aerobic and anaerobic conditions. It also discusses the factors affecting and limiting bioremediation processes and interactions between monoaromatic pollutants and other compounds during the remediation processes.

18

Biology and chemistry of fumonisin and AAL toxins

81%

Mirocha C. J., Chen J., Xie W., Xu Y.

Hodowla Roślin, Aklimatyzacja i Nasiennictwo

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1993

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tom 37

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nr 1-2

19

Proteomics of embryogenic and non-embryogenic calli of a Liriodendron hybrid

71%

Zhen Y., Li C., Chen J., Chen Q., Shi J.

Acta Physiologiae Plantarum

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2015

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tom 37

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nr 10

An increasing interest is focused on somatic embryogenesis induction in plants. This process usually generates both embryogenic calli (EC) and non-embryogenic calli (NEC) from the same explant. To identify specific proteins involved in embryogenesis competence, a comparative proteomics of EC and NEC in Liriodendron hybrid was performed. Proteins of EC and NEC were separated by two-dimensional gel electrophoresis (2-DE) and 14 proteins specific embryogenesis were characterized by matrix-assisted laser desorption ionization time-of-flight/- time-of-flight. Among these identifying proteins, profilin may be indispensable for cell survival and division, and eIF- 5A may play a functional role in embryogenic competence and further embryo development. Regulation of programmed cell death by cathepsin b-like cysteine proteinase and proteasome 20S beta1.1 subunit may have an essential part in maintaining cellular pluripotency and reprogramming for embryogenic mass. Reactive oxygen species (ROS) have a central effect on triggering cell division. However, methionine sulfoxide reductase is probably involved in protecting the cell from damage from excessive reactive oxygen species. Expression of EF-hand family proteins in embryogenic calli may mediate the calcium ion gradient for polarization and organ patterning. These identified embryogenic calli-specific proteins provide clues to understanding low conversion rate from calli cells to embryogenic cells.

20

Trichoderma biodiversity in China

71%

Sun R.-y., Liu Z.-c., Fu K., Fan L., Chen J.

Journal of Applied Genetics

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2012

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tom 53

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nr 3

In the present study, we made further investigation into the diversity of Trichoderma in China than previous ones utilizing comprehensive approaches of morphological microscopic observation and phylogenetic analysis by detecting molecular markers. One thousand nine hundred ten Trichoderma strains were isolated from soil or other materials in China: East (Anhui, Fujian, Jiangsu, Jiangxi, Shandong, Zhejiang province and Shanghai municipality), South-West (Guizhou, Qinghai, Shanxi, Sichuan and Yunnan province, Tibet Autonomous Region and Chongqing municipality), South-East (Guangdong, Guangxi, Hainan province), and Middle China (Henan, Hubei and Hunan province). Representative isolates were verified at the species level by morphological characters and the oligonucleotide barcode program TrichoOKey v.10 and the custom BLAST server TrichoBLAST, using sequence of the ITS 1 and 2 region of the rDNA cluster and partial sequences of translation elongation factor 1-alpha(tef1-α). A total of 23 Trichoderma species were identified : T.asperellum, T.atrioviride, T.aureovriride, T.brevicompactum, T.citrioviride, T.erinaceum, T.gamsii, T.hamatum, T.harzianum (H.1ixii), T.intricatum, T.koningii (H.koningii), T.koningiopsis, T.longibranchiatum, T.pleuroticola, T.reeseii (H.jecorina), T.sinensis, T.spirale, T.stromaticum, T.tomentosum, T.velutinum, T.vermipilum, T.virens (H.virens), T.viride. Among them, 3 species: T.intricatum, T.stromaticum, T.vermipilum were first reported in China; T.harzianum (H,1ixii) was the most widely distributed species in China. This study further shows that, the highest biodiversity of Trichoderma population appeared in South-West China.

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