bluuebunny/crossref_metadata_2025 huggingface dataset:
VU0155069 inhibits inflammasome activation independent of phospholipase D1 activity
Authors: Lee Sung Kyun , Kim Ye Seon , Bae Geon Ho , Lee Ha Young , Bae Yoe-Sik
Published: October 2019

The inflammasome is a specialized multiprotein oligomer that regulates IL-1β production. Although regulation of the inflammasome is related to crucial inflammatory disorders such as sepsis, pharmacological inhibitors that effectively inhibit inflammasome activity are limited. Here, we evaluated the effects of a phospholipase D1 (PLD1)-selective inhibitor (VU0155069) against sepsis and inflammasome activation. VU0155069 strongly enhances survival rate in cecal ligation and puncture (CLP)-induced sepsis by inhibiting lung inflammation, leukocyte apoptosis, and the production of proinflammatory cytokines, especially IL-1β. VU0155069 also significantly blocked IL-1β production, caspase-1 activation, and pyroptosis caused by several inflammasome-activating signals in the bone marrow-derived macrophages (BMDMs). However, VU0155069 did not affect LPS-induced activation of signaling molecules such as MAPK, Akt, NF-κB, and NLRP3 expression in the BMDMs. VU0155069 also failed to affect mitochondrial ROS generation and calcium increase caused by nigericin or ATP, and subsequent ASC oligomerization caused by several inflammasome-activating signals. VU0155069 indirectly inhibited caspase-1 activity caused by LPS + nigericin in BMDMs independent of PLD1 activity. We demonstrated that a PLD1 inhibitor, VU0155069, shows anti-septic activity as well as inflammasome-inhibiting effects. Our results suggest that VU0155069 can be considered a novel inflammasome inhibitor.
A microscopic look at the Johari-Goldstein relaxation in a hydrogen-bonded glass-former
Authors: Caporaletti F. , Capaccioli S. , Valenti S. , Mikolasek M. , Chumakov A. I. , Monaco G.
Published: October 2019

Understanding the glass transition requires getting the picture of the dynamical processes that intervene in it. Glass-forming liquids show a characteristic decoupling of relaxation processes when they are cooled down towards the glassy state. The faster (βJG) process is still under scrutiny, and its full explanation necessitates information at the microscopic scale. To this aim, nuclear γ-resonance time-domain interferometry (TDI) has been utilized to investigate 5-methyl-2-hexanol, a hydrogen-bonded liquid with a pronounced βJG process as measured by dielectric spectroscopy. TDI probes in fact the center-of-mass, molecular dynamics at scattering-vectors corresponding to both inter- and intra-molecular distances. Our measurements demonstrate that, in the undercooled liquid phase, the βJG relaxation can be visualized as a spatially-restricted rearrangement of molecules within the cage of their closest neighbours accompanied by larger excursions which reach out at least the inter-molecular scale and are related to cage-breaking events. In-cage rattling and cage-breaking processes therefore coexist in the βJG relaxation.
Stress, strain and deformation of poly-lactic acid filament deposited onto polyethylene terephthalate woven fabric through 3D printing process
Authors: Eutionnat-Diffo Prisca Aude , Chen Yan , Guan Jinping , Cayla Aurelie , Campagne Christine , Zeng Xianyi , Nierstrasz Vincent
Published: October 2019

Although direct deposition of polymeric materials onto textiles through 3D printing is a great technique used more and more to develop smart textiles, one of the main challenges is to demonstrate equal or better mechanical resistance, durability and comfort than those of the textile substrates before deposition process. This article focuses on studying the impact of the textile properties and printing platform temperature on the tensile and deformations of non-conductive and conductive poly lactic acid (PLA) filaments deposited onto polyethylene terephthalate (PET) textiles through 3D printing process and optimizing them using theoretical and statistical models. The results demonstrate that the deposition process affects the tensile properties of the printed textile in comparison with the ones of the textiles. The stress and strain at rupture of the first 3D printed PLA layer deposited onto PET textile material reveal to be a combination of those of the printed layer and the PET fabric due to the lower flexibility and diffusion of the polymeric printed track through the textile fabric leading to a weak adhesion at the polymer/textile interface. Besides, printing platform temperature and textile properties influence the tensile and deformation properties of the 3D printed PLA on PET textile significantly. Both, the washing process and the incorporation of conductive fillers into the PLA do not affect the tensile properties of the extruded polymeric materials. The elastic, total and permanent deformations of the 3D-printed PLA on PET fabrics are lower than the ones of the fabric before polymer deposition which demonstrates a better dimensional stability, higher stiffness and lower flexibility of these materials.
Understanding the phyllosphere microbiome assemblage in grape species (Vitaceae) with amplicon sequence data structures
Authors: Singh Prashant , Santoni Sylvain , Weber Audrey , This Patrice , Péros Jean-Pierre
Published: October 2019

Impacts of plant genotype on microbial assemblage in the phyllosphere (above-ground parts of plants, which predominantly consists of the set of photosynthetic leaves) of Vitis vinifera cultivars have been studied previously but the impact of grape species (under the grape family Vitaceae) was never investigated. Considering the fact, that the phyllosphere microbiome may have profound effects on host plant health and its performance traits, studying the impact of grape species in microbial taxa structuring in the phyllosphere could be of crucial importance. We performed 16S and ITS profiling (for bacteria and fungi respectively) to access genus level characterization of the microflora present in the leaf phyllosphere of five species within this plant family, sampled in two successive years from the repository situated in the Mediterranean. We also performed α and β-diversity analyses with robust statistical estimates to test the impacts of grape species and growing year, over a two-year period. Our results indicated the presence of complex microbial diversity and assemblages in the phyllosphere with a significant effect of both factors (grape species and growing year), the latter effect is being more pronounced. We also compared separate normalization methods for high-throughput microbiome data-sets followed by differential taxa abundance analyses. The results suggested the predominance of a particular normalization method over others. This also indicated the need for more robust normalization methods to study the differential taxa abundance among groups in microbiome research.
Reaction Mechanism of Etherification of Rice Straw with Epichlorohydrin in Alkaline Medium
Authors: Li Guanglu , Shang Yan , Wang Yuhong , Wang Linshan , Chao Yuesheng , Qi Yang
Published: October 2019

Wood plastic composites (WPCs) made from plant fibres and plastics have gained more and more attention. Studies have been focused on preparation and mechanical performance of WPCs. While mechanism of chemical modification of cereal straw has rarely been reported. In the present work, rice straw was etherified with epichlorohydrin (EPI) and the mechanism of etherification was investigated. Natural rice straw (NRS) was pretreated with NaOH to move most of hemicellulose and lignin. The alkali treated rice straw (ARS), whose dominant component being cellulose, was etherified with EPI at 120 °C for 1–8 h in toluene with NaOH as catalyst. NRS, ARS and etherified rice straw (ERS) were characterized and analyzed by FT-IR, solid CP/MAS 13C-NMR, elemental analysis and neutral sugar analysis. The etherification reaction was finished within 5 h, and C3H6O units were introduced into the structure of cellulose, leading to the increase of contents of C and H in ERS. The etherification process of ARS in alkaline medium was divided into three stages, during which two hydroxyl groups were replaced by two ether bonds successively, and a new hydroxyl group was formed in the last step. The number of hydroxyl groups in ERS was reduced, and reduction of hydrophilicity of ERS could be expected.
Connectomics-Based Functional Network Alterations in both Depressed Patients with Suicidal Behavior and Healthy Relatives of Suicide Victims
Authors: Wagner Gerd , de la Cruz Feliberto , Köhler Stefanie , Pereira Fabricio , Richard-Devantoy Stéphane , Turecki Gustavo , Bär Karl-Jürgen , Jollant Fabrice
Published: October 2019

Understanding the neural mechanisms of suicidal behavior is crucial. While regional brain alterations have previously been reported, knowledge about brain functional connectomics is currently limited. Here, we investigated differences in global topologic network properties and local network-based functional organization in both suicide attempters and suicide relatives. Two independent samples of depressed suicide attempters (N = 42), depressed patient controls (N = 43), healthy controls (N = 66) as well as one sample of healthy relatives of suicide victims (N = 16) and relatives of depressed patients (N = 16) were investigated with functional magnetic resonance imaging in the resting-state condition. Graph theory analyses were performed. Assortativity, clustering coefficients, global efficiency, and rich-club coefficients were calculated. A network-based statistic approach was finally used to examine functional connectivity matrices. In comparison to healthy controls, both patient groups showed significant reduction in assortativity, and decreased functional connectivity in largely central and posterior brain networks. Suicide attempters only differed from patient controls in terms of higher rich-club coefficients for the highest degree nodes. Compared to patient relatives and healthy controls, suicide relatives showed reduced assortativity, reduced clustering coefficients, increased global efficiency, and increased rich-club coefficients for the highest degree nodes. Suicide relatives also showed reduced functional connectivity in one anterior and one posterior sub-network in comparison to healthy controls, and in a largely anterior brain network in comparison to patient relatives. In conclusion, these results suggest that the vulnerability to suicidal behavior may be associated with heritable deficits in global brain functioning – characterized by weak resilience and poor segregation - and in functional organization with reduced connectivities affecting the ventral and dorsal prefrontal cortex, the anterior cingulate, thalamus, striatum, and possibly the insula, fusiform gyrus and the cerebellum.
Multiparametric radiobiological assays show that variation of X-ray energy strongly impacts relative biological effectiveness: comparison between 220 kV and 4 MV
Authors: Paget Vincent , Ben Kacem Mariam , Dos Santos Morgane , Benadjaoud Mohamed A. , Soysouvanh Frédéric , Buard Valérie , Georges Tarlet , Vaurijoux Aurélie , Gruel Gaëtan , François Agnès , Guipaud Olivier , Milliat Fabien
Published: October 2019

Based on classic clonogenic assay, it is accepted by the scientific community that, whatever the energy, the relative biological effectiveness of X-rays is equal to 1. However, although X-ray beams are widely used in diagnosis, interventional medicine and radiotherapy, comparisons of their energies are scarce. We therefore assessed in vitro the effects of low- and high-energy X-rays using Human umbilical vein endothelial cells (HUVECs) by performing clonogenic assay, measuring viability/mortality, counting γ-H2AX foci, studying cell proliferation and cellular senescence by flow cytometry and by performing gene analysis on custom arrays. Taken together, excepted for γ-H2AX foci counts, these experiments systematically show more adverse effects of high energy X-rays, while the relative biological effectiveness of photons is around 1, whatever the quality of the X-ray beam. These results strongly suggest that multiparametric analysis should be considered in support of clonogenic assay.
A biosensor based on microbial lipase immobilized on lamellar zinc hydroxide-decorated gold nanoparticles for carbendazim determination
Authors: de Moura Barboza Adriene , Brunca da Silva Anelisse , Mendonça da Silva Emilene , Pietro de Souza William , Soares Marcos Antônio , Gomes de Vasconcelos Leonardo , Terezo Ailton José , Castilho Marilza
Published: October 2019

We report an enzymatic biosensor based on the microbial lipaseCeratobasidiumsp.2 immobilized on lamellar zinc hydroxynitrate decorated gold nanoparticles and then incorporated into carbon paste with multi-walled carbon nanotubes (CNTs).
Studies on the GFP-tagged receptor or β-arrestin2 in U2OS cells reveal two separate signaling pathways of purinergic P2Y1 receptors
Authors: Zhang Shengting , Li Mingrui , Liu Dongbo , Qin Kunhao , Xiang Yingying , Ji Xiuling , Li Congwen , Wei Yunlin
Published: October 2019

The expression of fusion proteins in recombinant cell lines.
Monoamine oxidase-A targeting probe for prostate cancer imaging and inhibition of metastasis
Authors: Kim Won Young , Won Miae , Salimi Abbas , Sharma Amit , Lim Jong Hyeon , Kwon Seung-Hae , Jeon Joo-Yeong , Lee Jin Yong , Kim Jong Seung
Published: October 2019

Mitochondrial enzyme monoamine oxidase (MAO-A) is known to be overexpressed in prostate cancer (PCa) cells.
Bimetallic Al–Sn clusters: mixing at the nanoscale
Authors: Donís Alvaro , López María J. , Alonso Julio A.
Published: October 2019

Metals that are immiscible in the bulk can mix at the nanoscale. The structural flexibility of the clusters enhances the alloying effect.
Solution-processable n-doped graphene-containing cathode interfacial materials for high-performance organic solar cells
Authors: Pan Fei , Sun Chenkai , Li Yingfen , Tang Dianyong , Zou Yingping , Li Xiaojun , Bai Song , Wei Xian , Lv Menglan , Chen Xiwen , Li Yongfang
Published: October 2019

Solution-processable n-doped graphene-containing cathode interfacial material with a low work function demonstrates 16.52% power conversion efficiency in organic solar cells.
Treatment of per- and polyfluoroalkyl substances in landfill leachate: status, chemistry and prospects
Authors: Wei Zongsu , Xu Tianyuan , Zhao Dongye
Published: October 2019

This work critically reviews the occurrence, chemistry, treatment technologies and knowledge gaps for per- and polyfluoroalkyl substances in landfill leachate.
Epicatechin influences primary hemostasis, coagulation and fibrinolysis
Authors: Sinegre Thomas , Teissandier Dorian , Milenkovic Dragan , Morand Christine , Lebreton Aurélien
Published: October 2019

Epicatechin leads to decreased platelet activity, displays an anticoagulant effect and induces a pro-fibrinolytic profile using global assays. These epicatechin-induced hemostasis modulations strengthen the interest of epicatechin for CVD prevention.
Distinct roles of retinoic acid and BMP4 pathways in the formation of chicken primordial germ cells and spermatogonial stem cells
Authors: Zuo Qisheng , Jin Jing , Jin Kai , Sun Changhua , Song Jiuzhou , Zhang Yani , Chen Guohong , Li Bichun
Published: October 2019

This study demonstrated different effects of bone morphogenetic protein 4 (BMP4) and retinoic acid (RA) signaling on the induction of germ cell formation in chickens.
Programmed self-assembly of tetrapod nanoparticles with an amphiphilic surface pattern: the effect of arm length and hydrophobic ratio
Authors: Araki Yusuke , Kobayashi Yusei , Arai Noriyoshi
Published: October 2019

We have studied the self-assembled process and structures of tetrapod nanoparticle solutions using dissipative particle dynamics (DPD) simulations.
Highly efficient visible-light-driven oxygen-vacancy-based Cu2+1O micromotors with biocompatible fuels
Authors: Wang Qinglong , Dong Renfeng , Yang Qianxian , Wang Jiajia , Xu Shuyu , Cai Yuepeng
Published: October 2019

Oxygen vacancy-based Cu2+1O micromotors with highly enhanced propulsion in biocompatible fuels (pure water and super low concentration tannic acid) under low energy multispectral light (blue to red).
A full-spectrum-absorption from nickel sulphide nanoparticles for efficient NIR-II window photothermal therapy
Authors: Lei Ziyu , Zhang Wenlong , Li Bo , Guan Guoqiang , Huang Xiaojuan , Peng Xuan , Zou Rujia , Hu Junqing
Published: October 2019

Ni9S8 NPs with a full-spectrum-absorption could be used as a comparison platform to demonstrate the superiority of NIR-II (i.e., 1064 nm) laser to NIR-I (i.e., 808, 915, and 976 nm) laser, and irradiated by 1064 nm laser for efficient NIR-II photo-thermal therapy.
An in-plane Co9S8@MoS2 heterostructure for the hydrogen evolution reaction in alkaline media
Authors: Diao Lechen , Zhang Biao , Sun Qiaozhi , Wang Ning , Zhao Naiqin , Shi Chunsheng , Liu Enzuo , He Chunnian
Published: October 2019

MoS2/Co9S8 heterostructures were in situ grown on three-dimensional carbon network substrates with interconnected hierarchical pores, exhibit excellent alkaline HER activity.
Leaching- and sintering-resistant hollow or structurally ordered intermetallic PtFe alloy catalysts for oxygen reduction reactions
Authors: Zou Xiao , Chen Siguo , Wang Qingmei , Gao Xiaoyan , Li Jia , Li Jing , Li Li , Ding Wei , Wei Zidong
Published: October 2019

Herein, we develop a thermally driven interfacial diffusion alloying route that allows for direct evolution of solid Pt nanoparticles (NPs) supported on carbon (Pt/C) into a Pt skin-like hollow PtFe alloy or a structurally ordered intermetallic PtFe alloy.
S-Edge-rich MoxSy arrays vertically grown on carbon aerogels as superior bifunctional HER/OER electrocatalysts
Authors: Cheng Yu , Yuan Pengfei , Xu Xiaohui , Guo Sijie , Pang Kanglei , Guo Haoran , Zhang Zhiguo , Wu Xiao , Zheng Lirong , Song Rui
Published: October 2019

Operando Raman spectroscopy is used for the first time for clear identification of the intrinsic active sites, intermediates and structural changes in Mo4S16@GCA.
Synthesis and characterization of a semiconducting and solution-processable ruthenium-based polymetallayne
Authors: Ho Po-Yuen , Komber Hartmut , Horatz Kilian , Tsuda Takuya , Mannsfeld Stefan C. B. , Dmitrieva Evgenia , Blacque Olivier , Kraft Ulrike , Sirringhaus Henning , Lissel Franziska
Published: October 2019

Semiconducting, redox-active and solution-processable: accessing a highly functional Ru–polymetallayne via copper-free dehydrohalogenation polymerization.
Laser cooling of InF, InCl and InH with an ab initio study
Authors: Yang Rong , Tang Bin , Han XiangYu
Published: October 2019

Our ab initio calculations demonstrate the possibility of laser cooling InF, InCl and InH.
Graphene quantum dots mediated electron transfer in DNA base pairs
Authors: Liu Chang , Guo Linqing , Zhang Biao , Lu Liping
Published: October 2019

Graphene quantum dots (GQDs) were connected to [Ru(bpy)3]2+ to sense DNA-mediated charge transfer.
Enantioselective bromination of axially chiral cyanoarenes in the presence of bifunctional organocatalysts
Authors: Wada Yuuki , Matsumoto Akira , Asano Keisuke , Matsubara Seijiro
Published: October 2019

Enantioselective bromination of axially chiral cyanoarenes bearing high intrinsic rotational barriers via dynamic kinetic resolution using bifunctional organocatalysts is reported.
White light emission produced by CTMA-DNA nanolayers embedded with a mixture of organic light-emitting molecules
Authors: Chopade Prathamesh , Dugasani Sreekantha Reddy , Jeon Sohee , Jeong Jun-Ho , Park Sung Ha
Published: October 2019

White light emission produced by organic light-emitting molecule-embedded CTMA-DNA nanolayers was demonstrated.
Theoretical study on the excited state decay properties of iron(ii) polypyridine complexes substituted by bromine and chlorine
Authors: Li Yuan , Fan Xue-Wen , Chen Jie , Bai Fu-Quan , Zhang Hong-Xing
Published: October 2019

Transition metal iron(ii) halogen substituted polypyridyl complexes with quintet ground states were deeply investigated by density functional theory (DFT) and time-dependent density functional theory (TDDFT).
Giant surfactant-stabilized N2-foam for enhanced oil recovery after water flooding
Authors: Bai Yongqing , He Shaoqun , Lian Yue , Dai Caili , Zhang Huaihao
Published: October 2019

A giant surfactant with high surface activity and strong viscosifying ability was prepared through a facile one-pot procedure for foam stabilization in EOR projects.
The stellar host in star-forming low-mass galaxies: Evidence for two classes
Authors: Lumbreras-Calle A. , Méndez-Abreu J. , Muñoz-Tuñón C.
Published: October 2019

Context.The morphological evolution of star-forming galaxies provides important clues to understand their physical properties, as well as the triggering and quenching mechanisms of star formation.

Aims.We analyze the morphology of galaxies hosting star-forming events at low redshift (z <  0.36). We aim at connecting morphology and star-formation properties of low-mass galaxies (median stellar mass ∼108.5 M⊙) beyond the local Universe.

Methods.We use a sample of mediumband selected star-forming galaxies from the GOODS-North field. Hαimages for the sample are created combining both spectral energy distribution fits and HST data. Using them, we mask the star forming regions to obtain an unbiased two-dimensional model of the light distribution of the host galaxies. For this purpose we usePHI, a new Bayesian photometric decomposition code. We applied it independently to 7 HST bands, from the ultraviolet to the near-infrared, assuming a Sérsic surface brightness model.

Results.Star-forming galaxy hosts show low Sérsic index (with mediann ∼ 0.9), as well as small sizes (medianRe ∼ 1.6 kpc), and negligible change of the parameters with wavelength (except for the axis ratio, which grows with wavelength in 46% of the sample). Using a clustering algorithm, we find two different classes of star-forming galaxies: A more compact, redder, and high-n(class A) and a more extended, bluer and lower-none (class B). This separation holds across all seven bands analyzed. In addition, we find evidence that the first class is more spheroidal-like (according to the distribution of observed axis ratios). We compute the color gradients of the host galaxies finding that 48% of the objects where the analysis could be performed show negative gradients, and only in 5% they are positive.

Conclusions.The host component of low-mass star-forming galaxies atz <  0.36 separates into two different classes, similar to what has been found for their higher mass counterparts. The results are consistent with an evolution from class B to class A. Several mechanisms from the literature, like minor and major mergers, and violent disk instability, can explain the physical process behind the likely transition between the classes.
A new model suite to determine the influence of cosmic rays on (exo)planetary atmospheric biosignatures
Authors: Herbst Konstantin , Grenfell John Lee , Sinnhuber Miriam , Rauer Heike , Heber Bernd , Banjac Saša , Scheucher Markus , Schmidt Vanessa , Gebauer Stefanie , Lehmann Ralph , Schreier Franz
Published: October 2019

Context. The first opportunity to detect indications for life outside of the Solar System may be provided already within the next decade with upcoming missions such as the James Webb Space Telescope (JWST), the European Extremely Large Telescope (E-ELT) and the Atmospheric Remote-sensing Infrared Exoplanet Large-survey (ARIEL) mission, searching for atmospheric biosignatures on planets in the habitable zone of cool K- and M-stars. Nevertheless, their harsh stellar radiation and particle environment could lead to photochemical loss of atmospheric biosignatures.

Aims. We aim to study the influence of cosmic rays on exoplanetary atmospheric biosignatures and the radiation environment considering feedbacks between energetic particle precipitation, climate, atmospheric ionization, neutral and ion chemistry, and secondary particle generation.

Methods. We describe newly combined state-of-the-art modeling tools to study the impact of the radiation and particle environment, in particular of cosmic rays, on atmospheric particle interaction, atmospheric chemistry, and the climate-chemistry coupling in a self-consistent model suite. To this end, models like the Atmospheric Radiation Interaction Simulator (AtRIS), the Exoplanetary Terrestrial Ion Chemistry model (ExoTIC), and the updated coupled climate-chemistry model are combined.

Results. In addition to comparing our results to Earth-bound measurements, we investigate the ozone production and -loss cycles as well as the atmospheric radiation dose profiles during quiescent solar periods and during the strong solar energetic particle event of February 23, 1956. Further, the scenario-dependent terrestrial transit spectra, as seen by the NIR-Spec infrared spectrometer onboard the JWST, are modeled. Amongst others, we find that the comparatively weak solar event drastically increases the spectral signal of HNO3, while significantly suppressing the spectral feature of ozone. Because of the slow recovery after such events, the latter indicates that ozone might not be a good biomarker for planets orbiting stars with high flaring rates.
Molecular dynamics simulation of non-azeotropic refrigerants separation in auto-cascading refrigeration
Authors: Zheng Dayu , Feng Shengnan , Gao Liping , Li Menglu
Published: October 2019

The core problem of auto-cascading refrigeration is the separation of non-azeotropic refrigerants. The separation effect of mixed refrigerant directly determines the refrigeration effect of auto-cascading refrigeration system and the value of COP. The microscopic molecular dynamics simulation method is applied to the refrigeration system, and the properties of the pure substance and the mixed substance are simulated from the microscopic aspects to study the law of molecular condensation cooling, and the separation rate is simulated to obtain a more optimized scheme.
Influence of Intrinsic Permeability on the Production Performance of Shenhu Hydrate Sediment through Depressurization
Authors: Ma Yingrui , Li Shuxia , Wu Didi
Published: October 2019

Natural gas hydrate(NGH) is a clean resource with huge reserves. The depressurization method is an economical and effective exploitation method. In the process of depressurization, reservoir absolute permeability has an important influence on production results. Based on the data of Shenhu hydrate reservoirs, this paper established a depressurization production numerical simulation model. Then, the production performances such as pressure, temperature, gas production rate, cumulative gas production, and hydrate dissociation effect are all studied under different permeability conditions.study the change of reservoir pressure, gas production rate, cumulative gas production, reservoir temperature change and hydrate dissociation effect under different permeability conditions. Results show that higher permeability is conducive to the depressurization of hydrate reservoirs.
Study on “Resource Curse” Based on the Panel Data in Coal Resource-Rich Districts of Inner Mongolia
Authors: Yao Hong , Tian Meirong , Ma Jianjun , She Xinlu , Gao Jixi
Published: October 2019

In order to analyse whether there is “Resource curse” in coal resource-rich district of Inner Mongolia such as Xilinguole, Hulunbeier, Tongliao, Chifeng, Erdos and Wuhai during “Golden ten years” (form 2000 to 2011) of coal, we developed the regression model based on the panel data of coal development intensity, manufacturing investment level, R&D and education investment level and foreign investment level, and test the “resource curse” effect in a holistic and regional way. The results showed that there exist “Resource curse” effect in Inner Mongolia along with economic development, and the effect gradually enhance. Meanwhile, the most serious “Resource curse” exist in Xilinguole, Hulunbeier, Erdos. The most important ways to weaken the “Resource curse” is industrial diversification and technological innovation. In addition, the basic way to solve or avoid “Resource curse” is strengthening the system construction, improving the government’s measures and policies on management and utilization of natural resources.
Characteristics of leaching agents for heavy metal extraction and safe utilisation of pig farm biogas residues
Authors: Liu Xueyu , Ma Jieqiong , Zhu Hongguang
Published: October 2019

The continuous development of biogas engineering in recent years has been accompanied by an increasing number of biogas-residue types in the environment. The existence of various heavy metal elements in biogas residues, particularly excessive amounts of zinc and copper in pig farm biogas residues, hinders their safe utilisation. Several studies have focused on an effective composition for biogas residues or on their effects on soil and plants. However, few investigations regarding the removal of harmful substances from biogas residues have been conducted. The characteristics of heavy metals leached from pig farm biogas residues using eight types of leaching agents were analysed in this study. It is expected that, based on this study, different uses for biogas residues can be developed under the premise of security. The results showed that the most suitable extractant of heavy metals from pig farm biogas residues was EDTA2Na. The leaching rates increased over time. The leaching rates of copper and zinc after 2 h were 21.91% and 48.66%, respectively. After being leached for 2 h by EDTA-2Na, the concentration of zinc met the requirements for moderate alkaline soil, according to the Control Limits against Harmful Substances in Composts for Agricultural Use (DB44/T 361-2006) standard.
Evaluation of the combined and separate action of the Quercus cortex extract and an antibiotic on the amino acid composition of broilers’ muscle tissue
Authors: Duskaev Galimzhan , Kvan Olga , Rakhmatullin Shamil , Sheida Elena , Gavrish Irina
Published: October 2019

The industrial technology of broiler bird production broadens requirements for supplying birds with various biologically active substances. One of the most important elements of the intensive technology of producing poultry meat is organization for full and balanced feeding, which is the basis of the most complete manifestation of the productivity genetic potential, the efficient use of nutrients from the ration, the high natural resistance of the organism, and the product quality. Preventive measures in the context of modern poultry production should organically fit the process. In this aspect, the most promising technique is group prophylaxis with plant extracts or phytobiotics and traditional antibiotics capable to improve the quality of meat products. The study revealed the primary increase of the content of essential and nonessential amino acids in the pectoral muscles of the broilers that additionally received the oak bark extract as part of the ration compared to the control. The femoral muscles did not discover any clearly traced decline or increase of the content of nonessential and essential amino acids. The use of the oak bark extract without the antibiotic stimulated the accumulation of nonessential and essential amino acids mainly in the pectoral muscles of broilers, which has great economic value.
Adsorption of phosphorus onto Fe-modified Thalia dealbataderived biochar
Authors: Xiao Liwei , Jiang Hong , Shen Chao , Li Ke
Published: October 2019

How to remove P effectively in eutrophic water is an urgent problem to be solved. In this study, a Fe-modified biochar was prepared by pyrolyzed wetland plant Thalia dealbata. The adsorption of P was investigated by using the prepared biochar (TBC-Fe) as an adsorbent. The effects of contact time, initial P concentration, temperature and initial solution pH on adsorption behavior of P on TBC-Fe were studied. The results showed that P adsorption process on TBC-Fe was controlled by internal and external diffusion of particles, due to the adsorption kinetic was better fitted by Intra-particle diffusion model. The adsorption isotherm on TBC-Fe was well performed by Langmuir model, with a maximum P adsorption capacity of 15.86 mg/g. The best adsorption performance was exhibited at 25°C with the initial pH of 10. Overall, the results indicate a promising option of utilizing Fe-modified biochar derived from wetland plants as an efficient remediation adsorbent for phosphorus in water.
Identification and Analysis of Secondary Metabolites from CH3OH/H2O Extract of Metacordyceps Neogunnii
Authors: She Xinsong , Yao Ting , Ding Lu , Gan Zhuoting , Tang Min , Han Yanfeng
Published: October 2019

Secondary metabolites are considered to be the major compounds in Cordyceps with anti-tumor, anti-aging and immunity-enhancing effects. The molecular structures of secondary metabolites form the basis for the development and utilization of Cordyceps. Metacordyceps neogunnii is an important Cordyceps resource, but less study has been made on the molecular structure of its secondary metabolites. In this study, gas chromatography-mass spectrometry (GC/MS) and ultra performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS) were used to analyze and identify the secondary metabolites from CH3OH/H2O extract of Metacordyceps neogunnii. The results show that a total of 22 compounds were identified by GC-MS, including 2 n-alkanes, 1 isoparaffin, 1 cycloalkane, 6 olefins and 13 esters. The predominant compounds were (E)-ocimene, (E)-β-ocimene, methyl oleate, dioctyl adipate, methyl palmitate and methyl linoleate, obtained by means of GC/MS. Five distince classes of secondary metabolites were speculated: 3 polypeptides, 2 esters, 1 isoflavone, 1 isoindrone and 3 amides, from which 10 compounds were detected using UPLC-Q-TOF/MS. (R)-N-((1-(((9H-fluorene-9-yl) methoxy) carbonyl) pyrrolidine-2-yl) methyl)-N-(2-(6-benzoylamino-9H-purin-9-yl) acetyl) glycine, benzyl (5-(2-((3-(2, 3-dihydrobenzo[b] [1, 4] dioxin-6-yl)-4-carbonyl-4H-chromene-7-yl) oxo) acetylamino) amyl) carbamate, 5, 5’-((propane-2, 2-diyl (4, 1-phenylene)) bis (oxo)) bis (2-(naphthalene-1-yl) isoindoline-1, 3-dione), 1-dodecylazepine-2-one and other compounds were the first detected in Metacordyceps neogunnii.
Short Term Probabilistic Load Forecasting With Integrated Methods
Authors: Zhang Manying , Wang Lei , Zheng Weimin , Peng Hongqiao , Zhu Yue , Gu Jie
Published: October 2019

In smart grid era, electric load is becoming more stochastic and less predictable in short horizons with more intermittent energy and competitive electricity market transactions. As a result, short-term probabilistic load forecasting (STPLF) is becoming essential for energy utilities because it helps quantify the risks of decision-making for power systems operation. Currently, probabilistic load forecasts (PLF) are commonly produced from three single components, namely input, model and output. Nevertheless, whether integrating two components to represent dual uncertainties of electric load is practical and able to improve STPLF attracts little regards. To address this issue, this paper proposes three integrated methods by pairwise combination of single representative component, i.e. uniform-biased temperature scenarios (UBTS), quantile regression (QR) and logarithmic residual empirical simulation (LRES). Case study on real utility data demonstrates the superiority of the integrated methods and excavates the relationship between predictive model class and specific integrated method.
The numerical simulation of enhanced heat transfer on a Linear Fresnel molten salt-type receiver tube filled with porous media
Authors: Yang Chenggang , Zhang Yuning , Yan Fenghe , Zhang Wenguang , Li Wei
Published: October 2019

In this paper, three-dimensional numerical simulation was taken on a Linear Fresnel solar receiver tube using molten salt as heat transfer fluid (HTF), in which the porous media was filled to enhance the heat transfer efficiency. The simulation was to analyze the influence of the different conditions (filling rate, porosity and thermal conductivity) on heat transfer effect and wall temperature difference. The results revealed that the Nu (Nusselt number) increased firstly and then decreased with the increasing filling rate in both center filling and annular filling types. The optimal thermal performance were obtained when filling rate were 0.8 and 0.2 in center filling and annular filling, respectively. The Nu were about 1.7 and 1.5 times as the clear receiver. The circumferential temperature difference decreased firstly and then increased with filling rate increasing in both center filling and annular filling types. The lowest circumferential temperature differences were achieved at the filling rate 0.8 and 0.4 in center filling and annular filling types, and temperature difference decreased 15.88°C and 22°C compared with clear receiver, respectively. The Nu and PEC both decreased with porosity increasing. However, the thermal conductivity of porous media had little influence to the Nu and circumferential wall temperature.
China’s power development based on the energy internet
Authors: Ren Guizhou , Li Fangqing , Ren JianXin , Liu Yudong , Shen Honghong , Liu Gang
Published: October 2019

Energy Internet’s deep integration of energy systems and modern communication technologies can transform the economy from fossil energy to clean renewable energy. Based on the theoretical framework of business model, it is proposed that power companies can achieve the strategic entry of energy Internet market services through customer concept innovation, appropriate organizational structure adjustment, and more attention to external cooperation. By proactively innovating business models, Chinese power companies will gain sustainable competitiveness and build a platform for subsequent innovations. The development of the energy Internet will also make the construction of the global energy Internet inevitable. In this context, the internationalization process of China’s power companies faces both opportunities and problems. China’s power internationalization strategy should aim at realizing the global energy Internet. Under the guidance of the “One Belt, One Road” strategy, China’s power industry should relying on UHV technology advantages and overseas power operation management experience, strengthen domestic and international cooperation, develop renewable energy and distributed energy, and improve Grid-connected services, fully open the user-side distributed power market, use the Internet to develop diversified businesses, and establish a business model that is in line with the development of the industry.
Guidelines for green design of cooking appliances
Authors: Zong Jianfang , Tian Jianwei , Gao Dongfeng , Zhang Xin
Published: October 2019

This paper explains the purpose and basic principles, requirements, process and key points, main methods, evaluation and improvement of the eco-design of cooking appliances. This paper also provides guidelines for cooking appliances manufacturing enterprises to standardize their practice, and guides them for green design of cooking appliances, which is of great significance in promoting the transformation and upgrade of cooking appliances, improving the standard for green manufacturing, and increasing the supply of green products.
Methodological Study on Voluntary Greenhouse Gases Reduction for Shore Power System
Authors: Liu Leilei , Guo Xu , Ding Jian , Wang Hongliang
Published: October 2019

Voluntary emission reduction of greenhouse gases is conducive to reducing carbon dioxide (CO2) emissions and fostering a carbon trading market. Voluntary greenhouse gas emission reduction methodologies can be used to determine project baselines, demonstrate additionality, calculate emission reductions, and develop monitoring plans. Marine fossil fuel combustion is an important source of greenhouse gas emissions in port. Through the implementation of marine shore power system, it is possible to replace fuel consumption with electricity and significantly reduce greenhouse gas emissions during berthing. Through the analysis and study on shore power system, the methodology of voluntary greenhouse gas emission reduction for shore power system is formed, which is conducive to promoting the participation in carbon emissions trading and promoting the promotion and use of shore power system.
The Influence of Harmonics on Error Stability of Energy Meter Verification Device and Its Suppression Measures
Authors: Song Lei , Chen Huan-jun , Chen Yi-na , Xu Yong-jin , Zhou Yong-jia , Zhou Chenhui , Lu Ran , Wang Hai-feng , Wang Li-xin , Huang Xiao-qiong
Published: October 2019

.In view of the problem of poor error stability of the three-phase energy meter verification device under low current load, the working principle and error calculation method of the device are analyzed. The harmonics content and error data of the device under low current load before and after the installation of the isolation transformer are tested on site. And the role of the isolation transformer in suppressing the harmonics of the device is analyzed. From the harmonics content and error data of the output current of the device before and after the installation of the isolation transformer, it can be seen that the isolation transformer can effectively suppress the harmonics content of the device at the time of low current output and also improve the error stability under low current load.
Research of smart meter design scheme based on IR46
Authors: Song Lei , Chen Yi-na , Chen Huan-jun , Wang Lei , Xu Yong-jin , Zhou Yong-jia , Huang Xiao-qiong , Lu Ran , Zhou Chen-hui , Wang Li-xin , Li Guo
Published: October 2019

This paper compares the differences between the International Recommendation46 (IR46 for short) and the current national standards for electric energy meter of the accuracy classes, testing requirements, software protection and so on. The national meter adaptability of IR46 is analyzed, and a technical proposal of dual-core smart meter is advanced. This proposal could match the testing and software protection requirements for IR46, and could implementation in China.
Research on Optimal Operation of Active Distribution Network with Energy Storage Facilities
Authors: Wang Hua , Li Wenqi , Yang Haijing , Li Zhaohui , Shi Tao
Published: October 2019

With a large amount of intermittent distributed generation(DG) integrating into active distribution network(ADN), the flexibility requirements during the operation process should be paid more attention. Therefore, a dynamic optimal operation model is built. In this model, the maximization of economic benefits during the production cycle is set as the optimization objective, and the constrains of security and flexibility are considered. Then based on this model, the security, economy and flexibility requirements of power system are satisfied by coordination and interaction of different flexible sources. Finally, a case study is given to illustrate the validity and effectiveness of the models.
The Impact of New Electricity Reform on the Management of Power Network Investment Planning and Its Countermeasures
Authors: Cui Kai , Zhao Juan , Wu Xiao , Li Hui , Tian Yanhua , Li Jing
Published: October 2019

A new round of power system reform will gradually promote the construction of power market in China. In this process, many policies will have an impact on the investment plan management of power grid enterprises. Firstly, this paper analyses the basic framework of China’s new power reform and two key tasks affecting grid investment. Then, the impact of electricity reform policy on investment decision-making of power grid is analyzed, including investment planning objectives, planning principles, planning depth, planning effectiveness and investment management. Finally, the investment plan management strategy of power grid company under the new situation is put forward.
Optimization Design And Simulation Of Microgrid In Amdjarass Town, Chad
Authors: Wu Qing , Fan Zhongyi , Zhang Jintao , Sun Qin , Yang Junjie
Published: October 2019

How to supply electricity to the remote areas has become a very pressing issue for some countries which do not have the ability to connect all power grids to the whole country temporarily. At the same time, with the increase of fossil fuel costs and the continuous development of renewable energy generation technology, the construction of a hybrid renewable energy microgrid system seems to become an economic and technical approach to resolve the power shortage problem in the remote areas of some countries. Based on the analysis of local natural resources and load conditions, this paper designed a microgrid system which contains the wind turbines, PV systems, a diesel generator and an energy storage module to meet the power supply needs of the small town Amdjarass in Chad. Then the authors optimized the capacity of this microgrid and estimated the cost of this system with the utilization of HOMER software. In the end, this paper set the optimal configuration scheme with the target of the lowest COE and analyzed the sensitivity of some important parameters which could affect the economic performance.
The Maximum Scale Analysis of PV Generation Growth based on Power Grid Development
Authors: Zonghong Huang , Long Wangcheng , Li Xiang , dongjie Xu , Sun Zhe
Published: October 2019

Since 2010, photovoltaic (PV) was growing rapidly for policy guidance in China. The large-scale PV electricity generation had a great influence on the power grid operation because of the change of the power supply layout. How to analyse the influence is an important matter to power system development. The analysed results will decide the trends of the PV electricity generation in future. Therefore, the Coordination analysis of PV generation growth is crucial to those developments. In this paper, the reasonable plant scale arrangement was discussed based on the difference between peak and valley of power system.
Research on Power Dispatching Modes Based on the Thermal Performance of District Heating System
Authors: Li Qionghui , Zhao Qingsong , Liu Chenggang , Yuan Wei , Wang Yong , Ye Xiaoning , Wang Caixia , Yang Liu
Published: October 2019

Recently in winter, there appears serious wind abandoning problem in “Three North” (Northeast, Northwest and North China) regions, and the peak regulation become much more difficult in electric power grid system. So the operation mode of cogeneration for electric peak-load regulation is discussed without energy storage system, which will lead to the fluctuation of heating load and the fluctuation of supply water temperature. In this article, two different power dispatching modes are put forward and the influence is analyzed. From the simulation result, the indoor air temperature amplitudes of the two modes just have slightly different. Return water temperature amplitude of the mode II is obviously smaller than mode I. Compared with the real-time power load of Beijing-Tianjin-Hebei Region, mode II is smoother than mode I, and the difference between real-time load and dispatching load of mode II is smaller than that of mode I.
Research on Distributed Power Quality Disturbance Detection Based on ILMD
Authors: Liao Xiaohui , Xiao Jingbo , Wang Zhigang , Wang Hao , Ning Kang
Published: October 2019

The local mean decomposition method is effective in analyzing non-linear and non-stationary data, and it is suitable for the detection of power quality disturbance signals. The endpoint effect caused by the method is studied, and the original method is improved for the problem that the disturbance signal cannot be accurately located. An improved Local Mean Decomposition (ILMD) method is proposed. ILMD uses cubic spline interpolation instead of smoothing to obtain local mean function and envelope estimation function. Radial Basis Function (RBF) neural network is used to extend the information at both ends of the data, which improves the endpoint effect. Combined with Hilbert transform, the instantaneous frequency of power quality disturbance signal can be more accurately calculated. The improved method is also applicable to disturbance signals with weak periodic law, and has less requirement for disturbance signal conditions and universal applicability. The effectiveness of ILMD is validated by simulation examples and the measured data of voltage signal at low voltage side of 35kV bus transformer in a wind farm.