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Solvability and thermal response of cellulose with different crystal configurations

Qian CHEN, Kai ZHENG, Qingtao FAN, Kun WANG, Haiyan YANG, Jianxin JIANG, Shijie LIU

Frontiers of Engineering Management 2019, Volume 6, Issue 1,   Pages 62-69 doi: 10.1007/s42524-019-0001-z

Abstract: Using liquid- and solid-state NMR signals, the distinct types and dissolving states of cellulose polymorphs

Keywords： cellulose     crystal structure     thermal response     XRD     CP/MAS 13C NMR    

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Precipitation study of CO

Siming Chen, Yue Wu, Geoffrey W. Stevens, Guoping Hu, Wenshou Sun, Kathryn A. Mumford

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 3,   Pages 415-424 doi: 10.1007/s11705-019-1882-4

Abstract: Focused beam reflectance measurement (FBRM) and C nuclear magnetic resonance ( C NMR) analysis wereC NMR spectroscopic analysis showed that the crystals precipitated from the CO -unsaturated KGLY solutions

Keywords： crystallization     precipitation     glycinate     FBRM     13C NMR    

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Application and mechanism of polysaccharide extracted from Enteromorpha to remove nano-ZnO and humic acid in coagulation process

Jianzhang Sun, Baoyu Gao, Yuanxia Luo, Moxi Xue, Xing Xu, Qinyan Yue, Yan Wang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1029-8

Abstract: Enteromorpha polysaccharide (Ep) extracted from alga a novel green coagulant aid for nanoparticles (NPs) and heavy metal ions removal and the structure of EP was intensively studied in this study. The integration of Ep with polyaluminum chloride (PAC-Ep) coagulants exhibited higher coagulation performance than that of the polyaluminum chloride (PAC) because of the negatively charged NPs suspension and humic aid (HA) solution. Significant high removal efficiencies of dissolved organic matter (94.1%), turbidity (99.3%) and Zn ions (69.3%) were achieved by the PAC-Ep coagulants. The dual-coagulation properties of PAC-Ep for different pollutants was based on multiple mechanisms, including (i) Al charge neutralization; (ii) hydroxy aluminum hydroxyl bridging formed polynuclearhydroxy complexes bridge and sweep colloidal particles; (iii) adsorption and bridging of Ep chain for the NPs and heavy metal ions. Results indicated that the destabilization of colloid was induced by the coexisting HA and higher removal was achieved as ions adsorption was enhance in the presence of HA complexation. On the basis of that, the extraction of polysaccharide is a promising candidate for its high coagulation performance in water treatment.

Keywords： Algal Extraction     Enteromorpha polysaccharide     1H-13C nuclear magnetic resonance(NMR)     Fourier transform infrared (FTIR)     X-ray photoelectron spectroscopy (XPS)     Coagulation mechanism    

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Progress in NMR-based metabolomics of

Qifang PAN,Jingya ZHAO,Yuliang WANG,Kexuan TANG

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 3,   Pages 195-204 doi: 10.15302/J-FASE-2015063

Abstract: Nuclear magnetic resonance (NMR) is a very suitable and powerful complementary technique for the identiNMR-based metabolomics has been used in studies of for pathway elucidation, understanding stress responses

Keywords： Catharanthus roseus     monoterpenoid indole alkaloids     NMR     metabolomics    

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TIN2015-65515-C4-1-R) A preliminary version was presented at the 13th International

JULIAN,C. CARRASCOSA

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 4,   Pages 325-337 doi: 10.1631/FITEE.1500343

Abstract: Human-agent societies refer to applications where virtual agents and humans coexist and interact transparently into a fully integrated environment. One of the most important aspects in this kind of applications is including emotional states of the agents (humans or not) in the decision-making process. In this sense, this paper presents the applicability of the JaCalIVE (Jason Cartago implemented intelligent virtual environment) framework for developing this kind of society. Specifically, the paper presents an ambient intelligence application where humans are immersed into a system that extracts and analyzes the emotional state of a human group. A social emotional model is employed to try to maximize the welfare of those humans by playing the most appropriate music in every moment.

Keywords： Multi-agent systems     Virtual environments     Emotional agents    

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Computer-Aided Design System for CP Single-Screw Compressor

SHEN Jing-feng, YAO Fu-sheng

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 21-25 doi: 10.1007/s11465-005-0018-3

Abstract:

To design various optimum parameters and simulate the working process of CP single-screw compressor, the Computer-Aided Design (CAD) system for the CP single-screw compressor has been established.parameterization design function and animator simulation function based on analyzing the working principle of the CPThe experimental results show that the CAD system for the CP single-screw compressor is practical and

Keywords： CP single-screw     database technology     simulation technology     programming technology     animator simulation    

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chloride diffusion coefficient and microstructure parameters in concrete: A comparative analysis using NMR

Yurong ZHANG, Shengxuan XU, Yanhong GAO, Jie GUO, Yinghui CAO, Junzhi ZHANG

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1509-1519 doi: 10.1007/s11709-020-0681-9

Abstract: samples were prepared to investigate their microstructure characteristics via nuclear magnetic resonance (NMRResults show that the proportion of pores with diameters<1000 nm obtained by NMR exceeds that obtainedMoreover, microstructure parameters measured via NMR reveal a lower correlation coefficient versusthe chloride diffusion coefficient relative to the parameters determined via MIP, as NMR can measureanalyzing pores with sizes>50 µm, X-CT obtains the maximal contributive porosity, followed by MIP and NMR

Keywords： permeability     microstructure     NMR     MIP     X-CT    

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TIN2012-34003 and TIN2013-47074-C2-1-R) and FPU Scholarship (FPU13/03141) from the Spanish Government A preliminary version was presented at the 13th International Conference on Practical

Miguel OLIVER,Francisco MONTERO,José Pascual MOLINA,Pascual GONZÁLEZ,Antonio FERNÁNDEZ-CABALLERO

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 4,   Pages 348-364 doi: 10.1631/FITEE.1500347

Abstract: This paper seeks to determine how the overlap of several infrared beams affects the tracked position of the user, depending on the angle of incidence of light, distance to the target, distance between sensors, and the number of capture devices used. We also try to show that under ideal conditions using several Kinect sensors increases the precision of the data collected. The results obtained can be used in the design of telerehabilitation environments in which several RGB-D cameras are needed to improve precision or increase the tracking range. A numerical analysis of the results is included and comparisons are made with the results of other studies. Finally, we describe a system that implements intelligent methods for the rehabilitation of patients based on the results of the tests carried out.

Keywords： Kinect sensor     Rehabilitation system     Capture precision     Multi-camera system    

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Solid-state NMR for metal-containing zeolites: From active sites to reaction mechanism

Xingling Zhao, Jun Xu, Feng Deng

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 159-187 doi: 10.1007/s11705-019-1885-1

Abstract: The advanced solid-state NMR (SSNMR) spectroscopy is robust in the study of zeolites and zeolite-catalyzed

Keywords： metal-containing zeolites     solid-state NMR     active site     host-guest interaction     reaction mechanism    

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RESPONSE OF WHEAT COMPOSITE CROSS POPULATIONS TO DISEASE AND CLIMATE VARIATION OVER 13 GENERATIONS

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 3,   Pages 400-415 doi: 10.15302/J-FASE-2021394

Abstract:

Since the F5 (2005), three winter wheat composite cross populations (CCPs) based on germplasm specifically suitable for low-input conditions were subjected to natural selection under organic and conventional management. In the F6, each CCP was divided into two parallel populations (12 CCPs in total) and maintained continuously until 2018. Commonly used modern cultivars with different disease susceptibilities were grown alongside to assess the agronomic performance of the CCPs. The organically managed CCPs were comparable in yield and foliar disease resistance to two continuously used reference cultivars, Achat and Capo. In contrast, under conventional management the cv. Capo outyielded the CCPs (Achat was not tested), highlighting the importance of parental cultivar choice for specific management systems. The CCPs were found to be moderately resistant to brown rust and even to the newly emerged stripe rust races prevalent in Europe since 2011. Differences between the CCPs were mainly due to parental genetic background and were significant in the first five generations, but were no longer so in the last five generations. In addition, these differences tended to vary depending on the experimental year and the environmental stresses present. In conclusion, the CCPs despite being derived from older cultivars are able to compete with more recently released reference cultivars under organic farming practices and represent a dynamic germplasm resource.

 

Keywords： evolutionary breeding     heterogeneous crop population     management system    

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Symbiotic performance, shoot biomass and water-use efficiency of three groundnut (

Sofiya K. MUHABA, Felix D. DAKORA

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 4,   Pages 455-466 doi: 10.15302/J-FASE-2020354

Abstract: respiration and photosynthesis and its supply at low levels can affect legume nodulation, N fixation, and Cthe genotypes significantly increased their shoot biomass, symbiotic performance, grain yield, and CThere was, however, no effect on shoot δ C values in either year.The three genotypes differed significantly in δ N, %Ndfa, N-fixed, grain yield, C concentration, and δ C.

Keywords： shoot yield     N-fixed     %Ndfa     δ15N     δ13C     water-use efficiency    

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FGF13 suppresses acute myeloid leukemia by regulating bone marrow niches

Frontiers of Medicine 2022, Volume 16, Issue 6,   Pages 896-908 doi: 10.1007/s11684-022-0944-z

Abstract: Fibroblast growth factor 13 (FGF13) is aberrantly expressed in multiple cancer types, suggesting itsResults showed that FGF13 was lowly expressed in patients with AML and that its elevated expression wasUnivariate and multivariate Cox regression analyses identified FGF13 as an independent prognostic factorA prognostic nomogram integrating FGF13 and clinicopathologic variables was constructed to predict 1-The xenograft study indicated that FGF13 overexpression prolonged the survival of recipient mice.

Keywords： acute myeloid leukemia     FGF13     prognosis     immune-related genes     bone marrow niches    

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Human health ambient water quality criteria for 13 heavy metals and health risk assessment in Taihu Lake

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1475-6

Abstract:

• The concentrations of 13 heavy metals in Taihu Lake were analyzed.

Keywords： Heavy metals     Human health ambient water quality criteria     Taihu Lake     Health risk assessment     Contribution rate    

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Applications of NMR to Oil Well Logging and Formation Evaluation

Xiao Lizhi,Xie Ranhong

Strategic Study of CAE 2003, Volume 5, Issue 9,   Pages 87-94

Abstract:

NMR has been widely applied to well logging and formation evaluation since 1990's.NMR core analysis, NMR wireline logging, NMR logging while drilling,as well as down hole NMR laboratoryThe NMR information provides： 1,lithology-independent porosity; 2,clay bound water, capillary bound water, and free fluids; 3,permeability; 4,oil and gas in free fluids; 5,fluids NMR properties at down holeIn this paper, referred to author´s new publication, NMR logging principles are briefly introduced

Keywords： NMR     logging     formation evaluation     porosity     irreducible water     permeability    

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Low-temperature CO oxidation over Au-doped 13X-type zeolite catalysts: preparation and catalytic activity

Qing YE, Donghui LI, Jun ZHAO, Jiansheng ZHAO, Tianfang KANG, Shuiyuan CHENG

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 497-504 doi: 10.1007/s11783-011-0256-z

Abstract: Au-supported 13X-type zeolite (Au/13X) was synthesized using a common deposition–precipitation (DP) methodThe sample calcined at 300°C showed the highest activity, which may be due to the sample’s calcined at200°C inability to decompose completely to metallic gold while the sample calcined at 400°C had largersolution concentration of 1.5 × 10 mol·L gold solution pH of 6, solution temperature of around 90°C,and a calcination temperature of 300°C provides optimum catalytic activity for CO oxidation.

Keywords： 13X-type zeolite     CO oxidation     gold solution     pH     calcination temperature    

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Title Author Date Type Operation

Solvability and thermal response of cellulose with different crystal configurations

Qian CHEN, Kai ZHENG, Qingtao FAN, Kun WANG, Haiyan YANG, Jianxin JIANG, Shijie LIU

Journal Article

Precipitation study of CO

Siming Chen, Yue Wu, Geoffrey W. Stevens, Guoping Hu, Wenshou Sun, Kathryn A. Mumford

Journal Article

Application and mechanism of polysaccharide extracted from Enteromorpha to remove nano-ZnO and humic acid in coagulation process

Jianzhang Sun, Baoyu Gao, Yuanxia Luo, Moxi Xue, Xing Xu, Qinyan Yue, Yan Wang

Journal Article

Progress in NMR-based metabolomics of

Qifang PAN,Jingya ZHAO,Yuliang WANG,Kexuan TANG

Journal Article

TIN2015-65515-C4-1-R) A preliminary version was presented at the 13th International

JULIAN,C. CARRASCOSA

Journal Article

Computer-Aided Design System for CP Single-Screw Compressor

SHEN Jing-feng, YAO Fu-sheng

Journal Article

chloride diffusion coefficient and microstructure parameters in concrete: A comparative analysis using NMR

Yurong ZHANG, Shengxuan XU, Yanhong GAO, Jie GUO, Yinghui CAO, Junzhi ZHANG

Journal Article

TIN2012-34003 and TIN2013-47074-C2-1-R) and FPU Scholarship (FPU13/03141) from the Spanish Government A preliminary version was presented at the 13th International Conference on Practical

Miguel OLIVER,Francisco MONTERO,José Pascual MOLINA,Pascual GONZÁLEZ,Antonio FERNÁNDEZ-CABALLERO

Journal Article

Solid-state NMR for metal-containing zeolites: From active sites to reaction mechanism

Xingling Zhao, Jun Xu, Feng Deng

Journal Article

RESPONSE OF WHEAT COMPOSITE CROSS POPULATIONS TO DISEASE AND CLIMATE VARIATION OVER 13 GENERATIONS

Journal Article

Symbiotic performance, shoot biomass and water-use efficiency of three groundnut (

Sofiya K. MUHABA, Felix D. DAKORA

Journal Article

FGF13 suppresses acute myeloid leukemia by regulating bone marrow niches

Journal Article

Human health ambient water quality criteria for 13 heavy metals and health risk assessment in Taihu Lake

Journal Article

Applications of NMR to Oil Well Logging and Formation Evaluation

Xiao Lizhi,Xie Ranhong

Journal Article

Low-temperature CO oxidation over Au-doped 13X-type zeolite catalysts: preparation and catalytic activity

Qing YE, Donghui LI, Jun ZHAO, Jiansheng ZHAO, Tianfang KANG, Shuiyuan CHENG

Journal Article