检索结果-南通市图书馆

Phase Equilibria Modeling and Zircon Dating for Precambrian Metapelites from the Xinghuadukou Complex in the Lulin Forest of the Erguna Massif,Northeast China

在线全文

学校读者我要写书评

暂无评论

Journal of Earth Science 2018年第5期29卷 1276-1290页

作者： Jiulei Xu Changqing Zheng lucie Tajcmanova Xin Zhong Xiaomeng han Zhaoyuan Wang Yan Yang College of Earth Sciences Jilin UniversityChangchun 130061China Key Laboratory of Mineral Resources Evaluation in Northeast China Ministry of Land and ResourcesChangchun 130061China Department of Earth Sciences ETH ZurichZurich 8092Switzerland Physics of Geological Processes University of OsloOslo 0316Norway

The nature and formation time of the Xinghuadukou complex in Northeast China are important for determining the tectonic evolution of the Precambrian geological evolution of the Erguna massif. In this study, we present the results of zircon U-Pb dating of two metapelites from the complex. Detrital and metamorphic zircons from the metapelites yield a depositional age of -601 Ma and a metamorphic age of 496-509 Ma, indicating that the supracrustal rocks formed during the Neoproterozoic and recorded pan-African metamorphic events in the Erguna massif. Garnet porphyroblasts in SiI-Grt-Bt-Ms paragneiss show diffusion zoning, implying a decreasing P-T trend. Based on mineral transformation and P-T estimates using conventional geothermobarometers and phase equilibria modeling, three metamorphic stages were determined, including an early prograde metamorphic stage, a near peak upper amphibolite facies metamorphic stage, and a near-isobaric cooling stage with P-T conditions of 6.1 kb, 645 ℃, 5-6 kb, 710-740 ℃, and 4.4 kb, 625℃, respectively. The metamorphic history of the Xinghuadukou complex is thus defined by a clockwise P-T trajectory, which implies that the metamorphism of the metapelites documented the subduction, subsequent uplift and post collision process.

关键词： metapelites clockwise P-T path upper amphibolite facies Xinghuadukou complex Northeast China.

Length-based separation of Bacillus subtilis bacterial populations by viscoelastic microfluidics

在线全文

学校读者我要写书评

暂无评论

Microsystems & Nanoengineering 2022年第1期8卷 149-159页

作者： Ping Liu hangrui Liu lucie Semenec Dan Yuan Sheng Yan Amy K.Cain Ming Li Suqian University Suqian 223800China School of Engineering Macquarie UniversitySydneyNSW 2109Australia Department of Physics and Astronomy Macquarie UniversitySydneyNSW 2109Australia ARC Centre of Excellence in Synthetic Biology Department of Molecular ScienceMacquarie UniversitySydneyNSW 2109Australia Centre for Regional and Rural Futures Deakin UniversityGeelongVIC 3216Australia Institute for Advanced Study Shenzhen UniversityShenzhen 518060China Biomolecular Discovery Research Centre Macquarie UniversitySydneyNSW 2109Australia

In this study,we demonstrated the label-free continuous separation and enrichment of Bacillus subtilis populations based on length using viscoelastic ***,a gram-positive,rod-shaped bacterium,has been widely used as a model organism and an industrial *** can be arranged in different morphological forms,such as single rods,chains,and clumps,which reflect differences in cell types,phases of growth,genetic variation,and changing environmental *** ability to prepare *** populations with a uniform length is important for basic biological studies and efficient industrial ***,we systematically investigated how flow rate ratio,poly(ethylene oxide)(PEO)concentration,and channel length affected the length-based separation of *** *** lateral positions of *** cells with varying morphologies in a straight rectangular microchannel were found to be dependent on cell length under the co-flow of viscoelastic and Newtonian ***,we evaluated the ability of the viscoelastic microfluidic device to separate the two groups of *** cells by length(i.e.,1-5μm and>5μm)in terms of extraction purity(EP),extraction yield(EY),and enrichment factor(EF)and confirmed that the device could separate heterogeneous populations of bacteria using elasto-inertial effects.

关键词： viscoelastic separation straight

Comparing the removal of polycyclic aromatic hydrocarbons in soil after different bioremediation approaches in relation to the extracellular enzyme activities

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2019年第2期31卷 249-258页

作者： Zdeněk Ko?ná? Tereza ?ástková lucie Wiesnerová Luká? Praus Ivan Jablonsky Martin Koudela Pavel Tlusto? Department of Agroenvironmental Chemistry and Plant Nutrition Faculty of AgrobiologyFood and Natural ResourcesCzech University of Life Sciences Prague Department of horticulture Faculty of AgrobiologyFood and Natural ResourcesCzech University of Life Sciences Prague

A 120-day experiment was conducted to compare the removal of polycyclic aromatic hydrocarbons(PAhs) from agricultural soil after natural attenuation(NA), phytoremediation(P), mycoremediation(M), and plant-assisted mycoremediation(PAM) approaches in relation to the extracellular enzyme activities in soil. The NA treatment removed the total soil PAh content negligibly. The P treatment using maize(Zea mays) enhanced only the removal of low and medium molecular PAhs. The Pleurotus ostreatus cultivated on 30–50 mm wood chip substrate used in M treatment was the most successful in the removal of majority PAhs. Therefore,significantly(p highest total PAh removal by 541.4 μg/kg dw(dry weight)(36%) from all tested M treatments was observed. When using the same fungal substrate together with maize in PAM treatment, the total PAh removal was not statistically different from the previous M treatment. however, the maize-assisted mycoremediation treatment significantly boosted fungal biomass, microbial and manganese peroxidase activity in soil which strongly correlated with the removal of total PAhs. The higher PAh removal in that PAM treatment could be reflected in the following post-harvest time. Our suggested M and PAM approaches could be promising in situ bioremediation strategies for PAh-contaminated soils.

关键词： PAhs Biodegradation White-rot fungi Ligninolytic enzymes Microbial activity

Relationship between Perceived over Qualification,knowledge Sharing and Job Performance: Moderating Role of Exchange Ideology

在线全文

学校读者我要写书评

暂无评论

Relationship between Perceived over Qualification,knowledge ...

作者： Razafitsotra Soanomenjanahary lucie Annie Delia 浙江工商大学

学位级别：硕士

The context of perceived over qualification has become a popular discussion and frequently studied by many *** researches and findings comprise the significance of knowledge sharing in knowledge ***,there is still a troubling issue in the unwillingness of employees to share *** workers acquire an increasing amount of information related to their workplace,some individuals may be reluctant to *** present study aims to assess that exchange ideology moderates the interaction of perceived over qualification（POQ）and Job performance（JP）.Exchange ideology（IE）indicate the employee’s wiliness to support and reciprocate work effort depending on the organization’s *** organization’s support motivates employees to engage in a strong exchange ideology towards the workplace and initiate self-decision to give and receive in an exchange relationship with the *** have demonstrated that positive effects are clearly related to increase intrinsic *** are countless reasons supposed to enhance an individual’s experiences of interest and self-satisfaction *** studies also have revealed some portion of motivating aspects like a history of knowledge-sharing *** has identified the fundamental role of intrinsic motivation by clarifying its positive outcomes in human *** present study displays a conceptual framework from a logical perspective of perceived over qualification to explore the plausible contribution of exchange ideology on POQ（perceived over qualification）,and JP（job performance）.In present research,we assume that workers who are overqualified have higher availability skills also provide high performance at ***,two critical conditions are combined to demonstrate relationship between the ***,I propose that perceived over qualification relate to knowledge sharing in a positive *** with surplus qualification are self-ass

关键词：

Governing Climate Change Adaptation in the EU and China:An Analysis of Formal Institutions

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Advances in Climate Change Research 2011年第1期2卷 1-11页

作者： Marco Gemmer Andreas Wilkes lucie M.Vaucel National Climate Center China Meteorological Administration Center for Mountain Ecosystem Studies Kunming Institute of BotanyChinese Academy of Sciences China World Agroforestry Centre China Programme

Both the European Union （EU） and China are culturally, economically, climatologically and environmentally diverse polities. The EU is a multi-state grouping of economically developed democratic countries, while China is a unitary sovereign state and a developing economy with a strong government bureaucracy. Our hypothesis is that given their diverse political systems, the EU and China would develop different kinds of systems for the governance of adaptation to climate change. We test this hypothesis through a comparative analysis of policy documents from the two study areas, in which we examine framework policies, programmatic actions and specific actions that have been adopted to date in order to address climate change, with a specific focus on the water sector. We find that climate change adaptation began to be addressed through formal policy on a similar timeline in the two regions. The EU and China are also similar in that they use framework laws and existing sectoral policy, such as for the water sector. We find that the EU has primarily relied on integration of climate change adaptation concerns through legal instruments which set a framework for implementation of adaptation policy. In China, specific actions to be incorporated in socio-economic development plans under the existing legislation on adaptation have been the main mode for integrating adaptation into sectoral actions, though the future trend may be to develop more regulations.

关键词： international comparison climate change policy framework adaptation policy European Union China water policy

Utilization of Class C Fly Ash As A Raw Material for Manufacturing of Refractory Materials

在线全文

学校读者我要写书评

暂无评论

China's Refractories 2017年第4期26卷 24-30页

作者： lucie KERSNEROVA Karel LANG Pavel KOVAR Frantisek SOUKAL P-D Refractories CZ a.s. Velke Opatovice67963Czech Republic Brno University of Technology Brno 61200Czech Republic

There have been increasing efforts to utilize energy by-products （EBP） all over the world. In the Czech Re- public fly ash is usually used in ceramic technology, es- pecially in brick manufacturing and for ceramic tiles. The average production of EBP is about Ig million tons per year. The range of potential products, where EBP could be used, is very wide and energy by-products have become an important raw material source. In this paper the attention was focused on class C fly ash and its usage in field of refractory materials. Experimental works were carried out on mixtures with fly ash and clay. There were also tested batches for lightweight fireclay bricks. The maximal amount of CFA should be up to 50%.

关键词： energy by-products class C fly ash re- fractory materials

Experiences of Using Alternative Raw Materials in Manufacturing of Refractory Materials

在线全文

学校读者我要写书评

暂无评论

China's Refractories 2016年第1期25卷 7-12页

作者： lucie VODOVA Karel LANG Lukas TVRDIK Pavel KOVAR P-D Refractories CZ a.s. Velke Opatovice 67963 Czech Republic

The article describes the experiences of alternative materials for the manufacturing of the refractory materi- als in the company P-D Refractories CZ a. s. The atten- tion is focused on energy by-products （EBP）. Energy by-products are generated during burning and desul- phurization in thermal power plants. Classical high-tem- perature -fly ash （class *** ash according to ASTM C618） is the most important and .fly ash from .fluidized technology （ class C-fly ash） is the second group. In the Czech Republic, power plants produce about 14 million tons of energy by-products every year. Utilization of these products in ceramic technology means a reduction of raw material costs and also it helps to reduce adverse environ- mental impact. Class F-fly ash （ FFA ） and cinder from high temperature combustion （CD） were used in light- weight insulation fireclay bricks. We can use these mate- rials as a grog and a lightening agent for materials with bulk density over 900 kg · m-3 and classification tem- perature up to 1 150 ℃. Class *** ash （CFA） is be- ing tested in a wide range of the refractory materials. For example, it can be used in lightweight fireclay bricks, fireclay bricks for stoves, acid-resistant fireclay bricks or refractory castables. The range of potential products, where EBP could be used, is very wide and energy by-products have become an important raw mate- rial source.

关键词： energy by-products class F fly ash classC fly ash refractory materials

Potentiation of NETs release is novel characteristic of TREM-1 activation and the pharmacological inhibition of TREM-1 could prevent from the deleterious consequences of NETs release in sepsis

在线全文

学校读者我要写书评

暂无评论

Cellular & Molecular Immunology 2021年第2期18卷 452-460页

作者： Amir Boufenzer Kevin Carrasco lucie Jolly Benjamin Brustolin Elisa Di-Pillo Marc Derive Sébastien Gibot INOTREM Vandœuvre-lès-NancyNancyFrance UMR-S 1116 Défaillance Cardiovasculaire Aigue et ChroniqueVandœuvre-lès-NancyNancyFrance ChRU Nancy Hôpital CentralService de Réanimation MédicaleNancyFrance

During sepsis,neutrophil activation induces endothelial cell(EC)dysfunction partly through neutrophil extracellular trap(NET)*** triggering receptor expressed on myeloid cell-1(TREM-1)is an orphan immune receptor that amplifies the inflammatory response mediated by Toll-like receptor-4(TLR4)*** the key role of TLR4 signaling in NETosis is known,the role of TREM-1 in this process has not yet been ***,we report that TREM-1 potentiates NET release by human and murine neutrophils and is a component of the NET *** contrast,pharmacologic inhibition or genetic ablation of TREM-1 decreased NETosis in vitro and during experimental septic shock in ***,isolated NETs were able to activate ECs and impair vascular reactivity,and these deleterious effects were dampened by TREM-1 ***-1 may,therefore,constitute a new therapeutic target to prevent NETosis and associated endothelial dysfunction.

关键词： TREM-1 NETs sepsis endothelial cell activation vascular dysfunction LR12

The 3’-untranslated region contributes to the pregnane X receptor(PXR) expression downregulation by PXR ligands and up-regulation by glucocorticoids

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Pharmaceutica Sinica B 2020年第1期10卷 136-152页

作者： Tomas Smutny Jan Dusek lucie hyrsova Jana Nekvindova Alzbeta horvatova Stanislav Micuda Sabine Gerbal-Chaloin Petr Pavek Department of Pharmacology and Toxicology Faculty of Pharmacy in Hradec KraloveCharles UniversityHradec Kralove CZ-50005Czech Republic Institute of Clinical Biochemistry and Diagnostics University Hospital Hradec KraloveHradec Kralove CZ-50005Czech Republic Department of Pharmacology Faculty of Medicine in Hradec KraloveCharles UniversityHradec Kralove CZ-50003Czech Republic IRMB INSERMUniversity MontpellierMontpellierFrance

Pregnane X receptor(PXR)is the major regulator of xenobiotic *** itself is controlled by various signaling molecules including ***,negative feed-back regulation has been proposed at the transcriptional *** examined the involvement of the 3’-untranslated region(3’-UTR)of NR1I2 mRNA and microRNAs in PXR-and glucocorticoid receptor(GR)-mediated regulation of NR1I2 gene *** ligands were found to significantly downregulate NR1I2 mRNA expression in a set of 14 human hepatocyte ***,PXR was downregulated by PCN in the C57/BL6 mice *** mechanistic studies with the full-length 3’-UTR cloned into luciferase reporter or expression vectors,we showed that the 3’-UTR reduces PXR *** the miRNAs tested,miR-18a-5p inhibited both NR 112 expression and CYP3A4 gene ***,we observed significant upregulation of miR-18a-5p expression 6 h after treatment with the PXR ligand rifampicin,which indicates a putative mechanism underlying NR1I2 negative feed-back regulation in hepatic ***,glucocorticoids upregulated NR1I2 expression not only through the promoter region but also via 3’-UTR regulation,which likely involves downregulation of *** conclude that miR-18a-5p is involved in the down-regulation of NR1I2expression by its ligands and in the upregulation of NR1I2 mRNA expression by glucocorticoids in hepatic cells.

关键词： Gene expression MicroRNA Glucocorticoid Regulation Pregnane X receptor Cytochrome P4503A4