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Evaluation of phosphorus removal from wastewater by soils in rural areas in China

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Journal of Environmental Sciences 2010年第1期22卷 15-22页

作者： Hanwen Liang, Junxin Liu, Yuansong Wei, Xuesong Guoresearch center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China [a] research center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

Low-cost, easy-maintenance and high-efficiency decentralized wastewater treatment technologies are urgently needed in rural areas of China. Processes with high potential for phosphorus removal are of great interest. However, commonly used treatment methods often do not meet the strict criteria for removing phosphorus from rural wastewater. In order to search an economic and simple technology for phosphorus removal from the common bit-technologies effluent, seven soil types collected from different rural areas in China were investigated for their ability to remove phosphorus. X-ray diffraction （XRD） was used to analyse the mineral structure, and inductively coupled plasma optical emission spectrometer （ICP-OES） was used to analyse the geochemical composition of the soil samples. Three primary minerals - quartz, albite and montmorillonite - were clearly detected. The samples were divided into two soil types, acidic soils and alkaline soils, based on their pH values. The geochemical composition study indicated that a higher percentage of Ca and Mg occurred in alkaline soils （pH 〉 8） than in acidic soils （pH 〈 6.5）. Adsorption isotherms from batch experiments fitted the Langmuir and Freundlich models well, the maximum P adsorption capacities ranged from 0.256 to 1.598 mg P/g, indicating a high phosphorus removal potential for all of these soils. The P fractions extracted revealed that the sum of NaOH-extracted inorganic P （NaOH-Pi） was the major P component in the acidic soils, and CaCO3-bound phosphorus （Ca-P） in the alkaline soils. Dynamic adsorption simulation showed that these soils have the ability to remove phosphorus from wastewater.

关键词： adsorption phosphorus removal rural areas wastewater treatment

Hydrothermal Alteration Mapping in Northern Khur, Iran, Using ASTER Image Processing: a New Insight to the Type of Copper Mineralization

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Acta Geologica Sinica(English Edition) 2013年第3期87卷 830-842页

作者： Azadeh Malekzadeh SHAFAROUDI Mohammad Hassan KARIMPOUR research center for Ore Deposit of Eastern Iran Ferdowsi University of Mashhad

Eastern Iran has great potential for the discovery of different types of mineralization. The study area encompasses Tertiary magmatism in the northern Lut block located in northern Khur, South Khorasan, eastern Iran and is mostly covered by volcanic rocks, which are intruded by porphyritic subvolcanic intrusions in some places. Application of the spectral angle mapper （SAM） technique to Advanced Spaceborne Thermal Emission and Reflection Radiometer （ASTER） images detected sericitic, argillic, and propylitic alterations, silicification, and secondary iron oxides. The alteration is linear and associated within vein-type mineralization. Twelve prospective areas are selected for detailed exploration and based on our processing results, in addition to NW-SE faults, which are associated with Cu mineralization indications, NE-SW faults are also shown to be important. Based on the presence of subvolcanic rocks and numerous Cu ± Pb-Zn vein-type mineralizations, extensive alteration, high anomaly of Cu and Zn （up to 100 ppm）, the age （43.6 to 31.4 Ma） and the initial $78r/S6Sr ratio （0.7047 to 0.7065） of the igneous rocks, and the metallogenic epoch of the Lut block （middle Eocene-lower Oligocene） for the formation of porphyry Cu and epithermal deposits, the studied area shows great potential for porphyry copper deposits.

关键词： Mineralization porphyry copper ASTER spectral angle mapper metallogenic epoch Iran

Computational approaches for fast generation of digital 3D video holograms(Invited Paper)

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Chinese Optics Letters 2009年第12期7卷 1083-1091页

作者： Seung-Cheol Kim Eun-Soo Kim 3D Display research center Department of Electronic Engineering Kwangwoon University

Several approaches for fast generation of digital holograms of a three-dimensional （3D） object have been discussed. Among them, the novel look-up table （N-LUT） method is analyzed to dramatically reduce the number of pre-calculated fringe patterns required for computation of digital holograms of a 3D object by employing a new concept of principal fringe patterns, so that problems of computational complexity and huge memory size of the conventional ray-tracing and look-up table methods have been considerably alleviated. Meanwhile, as the 3D video images have a lot of temporally or spatially redundant data in their inter- and intra-frames, computation time of the 3D video holograms could be also reduced just by removing these redundant data. Thus, a couple of computational methods for generation of 3D video holograms by combined use of the N-LUT method and data compression algorithms are also presented and discussed. Some experimental results finally reveal that by using this approach a great reduction of computation time of 3D video holograms could be achieved.

关键词： LUT Computational approaches for fast generation of digital 3D video holograms CGH

Prediction of product roughness,profile,and roundness using machine learning techniques for a hard turning process

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Advances in Manufacturing 2021年第2期9卷 206-215页

作者： Chunling Du Choon Lim Ho Jacek Kaminski Advanced Remanufacturing and Technology center(ARTC) Agency for ScienceTechnology and Research(A*STAR)Singapore

High product quality is one of key demands of customers in the field of manufacturing such as computer numerical control(CNC)*** monitoring and prediction is of great importance to assure high-quality or zero defect *** this work,we consider roughness parameter Ra,profile deviation Pt and roundness deviation RONt of the machined products by a ***,these three parameters are much related to the machine spindle parameters of preload,temperature,and rotations per minute(RPMs),while in this paper,spindle vibration and cutting force are taken as inputs and used to predict the three quality *** spectral density(PSD)based feature extraction,the method to generate compact and well-correlated features,is proposed in details in this *** the efficient features,neural network based machine learning technique turns out to be able to result in high prediction accuracy with R2 score of 0.92 for roughness,0.86 for profile,and 0.95 for roundness.

关键词： Computer numerical control(CNC)machining Quality prediction Roughness parameter Profile deviation Roundness deviation Machine learning

Methane, Nitrous Oxide and Ammonia generation in full-scale swine wastewater purification facilities

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Frontiers of Environmental Science & Engineering 2017年第3期11卷 115-122页

作者： Takashi Osada Makoto Shiraishi Teruaki Hasegawa Hirofumi Kawahara National Agriculture and Food research Organization Tsukuba Ibaraki 305-0005 Japan Okayama Prefectural center for Animal Husbandry research Misaki Okayama 709-3401 Japan Chiba Prefectural Livestock research center Yachimata Chiba 289-1113 Japan Saga Prefectural Higashimastuura Agricultural Development and Extension center Karatsu Saga 847-0861 Japan

The activated sludge process to remove nitrogen and biochemical oxygen demand （BOD） is reportedly cost-effective for swine wastewater treatment, and it use has thus increased in pig farming. Nitrous oxide （N20） is generated on farms as an intermediate product in nitrification and denitrification, and methane （CH4） is also generated from organic degradation under anaerobic conditions by microorganisms in manure or wastewater. This study was carried out at five activated sludge treatment facilities across Japan between August 2014 and January 2015. Measurements were conducted over several weeks at wastewater purification facilities for swine farms： two in Chiba prefecture （East Japan）, two in Okayama prefecture （West Japan）, and one in Saga （Southern Japan）. Taking several environmental fluctuations into account, we collected measurement data continuously day and night, during both high-temperature and low-temperature periods. The results indicated that CH4 and N20 emission factors were 0.91% （kgCHa·kg volatile solids^-1） and 2.87% （g N2O-N·kg total N^-1）, respectively. Ammonia emissions were negligible in all of the measurements from the wastewater facilities. The N20 emission factor calculated under this experiment was low compared to our previous finding （5.0%; g N2O-N·kg N^-1） in a laboratory experiment. In contrast, the CH4 emission factor calculated herein was rather high compared to the laboratory measurements. There was great variation in daily GHG emission factors measured in the actual wastewater treatment facilities. In particular, the N2O emission rate was affected by several environmental conditions at each facility location, as well as by the management of the wastewater treatment.

关键词： Manure Greenhouse gas Denitrification BOD/NNitrous oxide Methane

QT-GWAS:A novel method for unveiling biosynthetic loci affecting qualitative metabolic traits

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Molecular Plant 2023年第7期16卷 1212-1227页

作者： Marlies Brouckaert Meng Peng RenéHofer lias El Houari Chiarina Darrah Veronique Storme Yvan Saeys Ruben Vanholme Geert Goeminne Vitaliy I.Timokhin John Ralph Kris Morreel Wout Boerjan Ghent University Department of Plant Biotechnology and Bioinformatics9000 GhentBelgium VIB center for Plant Systems Biology 9052 GhentBelgium Ghent University Department of Applied MathematicsComputer Science and Statistics9000 GhentBelgium VIB center for Inflammation research 9052 GhentBelgium vIB Metabolomics Core 9052 GhentBelgium Department of Biochemistry and US Department of Energy Great Lakes Bioenergy Research CenterWisconsin Energy InstituteUniversity of Wisconsin-MadisonMadisonWI53706USA Ghent University Department of Applied MathematicsComputer Science and StatisticsGhentBelgium ViB center for Inflammation research GhentBelgium BioNTech SE MainzRhineland-PalatinateGermany Eunomia research&Consulting BristolUK VIB Agro-incubator NeveleBelgium research Institute for Chromatography KortrijkBelgium

Although the plant kingdom provides an enormous diversity of metabolites with potentially beneficial applications for humankind,a large fraction of these metabolites and their biosynthetic pathways remain *** metabolite structures and their biosynthetic pathways is key to gaining biological understanding andto allow metabolic *** orderto retrieve novel biosynthetic genes involved in specialized metabolism,we developed a novel untargeted method designated as qualitative trait GWAs(QT-GWAS)that subjects qualitative metabolic traits to a genome-wide association study,while the conventional metabolite GWAS(mGWAS)mainly considers the quantitative variation of *** a proof of the validity of QT-GWAS,23 and 15of the retrieved associations identified in Arabidopsis thaliana by QTGWAS and mGWAS,respectively,were supported by previous ***,seven genemetabolite associations retrieved by QT-GWAS were confirmed in this study through reverse genetics combined with metabolomics and/or in vitro enzyme *** such,we established that CYTOCHROME P450706A5(CYP706A5)is involved in the biosynthesis of chroman derivatives,UDP-GLYCOSYLTRANSFERASE 76C3(UGT76C3)is able tohexosylate guanine in vitro and in planta,and SULFOTRANSFERASE 202B1(SULT202B1)catalyzes the sulfation of neolignans in ***,our study demonstrates that the untargeted QT-GWAS method can retrieve valid gene-metabolite associations at the level of enzyme-encoding genes,even new associations that cannot be found by the conventional mGwAs,providing a new approach for dissecting qualitative metabolic traits.

关键词： qualitative method proof

Transforming waste particles into valuable adsorbents via amyloid-mediated molecular engineering

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Science China Chemistry 2025年第01期 317-328页

作者： Qingmin Yang Jian Zhao Yujia Zhang Xingyu Zhou Hao Ren Bowen Hu Zhongli Lei Lixin Chen Peng Yang School of Material and Chemical Engineering Bengbu University Anhui Provincial Engineering Laboratory of Silicon-Based Materials School of Chemistry and Chemical Engineering Northwestern Polytechnical University Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical EngineeringShaanxi Normal University Xi'an Key Laboratory of Polymeric Soft Matter School of Chemistry and Chemical Engineering Shaanxi Normal University International Joint research center on Functional Fiber and Soft Smart Textile School of Chemistry and Chemical EngineeringShaanxi Normal University

The high-value utilization of industrial solid waste using a facile and eco-friendly process is of great interest and significance in reducing environmental pollution and developing a green circular economy. Herein, we propose an amyloid-mediated molecular engineering strategy to transform particulate waste into valuable adsorbents for metal ions. Our method has the advantage of aqueous solution fabrication under mild conditions without the use of high-temperature hydrothermal methods and toxic chemical reagents. Amyloid-mediated molecular engineering manipulates the phase transition of bovine serum albumin(BSA)on particulate waste surfaces, resulting in a remarkable ～3.1 times improvement in the adsorption capacity of fly ash, a typical industrial solid waste for gold ions after modification with the phase-transitioned BSA(PTB). The resultant adsorption ability was 69–1,980 times higher than those of conventional and emerging adsorbent materials such as ion exchange resins, activated carbon(AC), covalent organic frameworks(COFs), and metal-organic frameworks(MOFs). We further demonstrated the application of our PTB-modified materials in the recovery of precious metals from low-grade gold ore and electronic waste leachates. Consequently, this strategy could increase the value of waste materials nearly 27 times. In addition, this method is generally extendable to other conventional industrial adsorbents such as resin, clay, and Al2O3, and enhances their adsorption capabilities at least twofold. Overall, this work provides a simple and green approach for improving the adsorption performance of solid particles, and is expected to develop into a universal strategy for transforming waste particles into high-value-added products.

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The Role of Work in Breast Cancer Patients

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Journal of Cancer Therapy 2013年第8期4卷 1330-1334页

作者： Manuela Pennisi Giuseppe Chisari Marco Vacante Francesco Lucca Salvatore Spitaleri Giulia Malaguarnera Giuseppe Grosso Filippo Drago Vito Catania Alfredo Consoli Mariano Malaguarnera Department of Biomedical Sciences University of Catania Catania Italy Department of General Surgery University of Catania Catania Italy Department of Neurosciences University of Catania Catania Italy International PhD Programme in Neuropharmacology University of Catania Catania Italy research center “the great senescence” University of Catania Catania Italy

Background: Since the survival rates of cancer have increased considerably, the long-term side effects of cancer and cancer-related treatments may impact survivors’ capability to regain normal lives. The aim of this study was to evaluate the effects of the breast cancer on the job satisfaction and the quality of life. Methods: We enrolled 130 women divided into four groups: 1) 40 breast cancer survivors (aged 39 - 50);2) 44 women diagnosed with breast cancer (aged 35 - 49);3) 46 women in good health status (aged 37 - 48). Job satisfaction was measured with the Warr-Cook-Wall (WCW) Job satisfaction scale that measures overall job satisfaction and satisfaction with nine aspects of work. Results: Compared to healthy subjects, breast cancer survivors reported a poorer number of hours of work (p < 0.05) and a significant amount of variety in job (p < 0.01), opportunity to use abilities (p < 0.001), income (p < 0.01). Compared to patients with breast cancer at diagnosis, breast cancer survivors reported a significant amount of variety in job (p < 0.05), opportunity to use abilities (p < 0.05), amount of responsibility (p < 0.05), income (p < 0.05). In our study, the comparison between breast cancer survivors, breast cancer at diagnosis, and healthy subjects does not differ significantly in overall job satisfaction. Conclusions: Understanding the job problems associated with cancer can provide relevant information regarding potential treatment and psychological support in breast cancer survivors.

关键词： Breast Cancer Job Satisfaction Quality of Life Cancer Survivors Work Absenteeism Presenteeism

Application of silk fibroin coatings for biomaterial surface modification:a silk road for biomedicine

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2023年第11期24卷 943-956页

作者： Jinxing HU Zhiwei JIANG Jing ZHANG Guoli YANG Stomatology Hospital School of StomatologyZhejiang University School of MedicineZhejiang Provincial Clinical Research Center for Oral DiseaseKey Laboratory of Oral Biomedical Research of Zhejiang ProvinceCancer Center of Zhejiang UniversityEngineering Research Center of Oral Biomaterials and Devices of Zhejiang ProvinceHangzhou310000China

Silk fibroin(SF)as a natural biopolymer has become a popular material for biomedical applications due to its minimal immunogenicity,tunable biodegradability,and high ***,various techniques have been developed for the applications of SF in *** of the literature reviews focus on the SF-based biomaterials and their different forms of applications such as films,hydrogels,and *** is also valuable as a coating on other substrate materials for biomedicine;however,there are few reviews related to SF-coated ***,in this review,we focused on the surface modification of biomaterials using SF coatings,demonstrated their various preparation methods on substrate materials,and introduced the latest *** diverse applications of SF coatings for biomedicine are discussed,including bone,ligament,skin,mucosa,and nerve regeneration,and dental implant surface *** coating is conducive to inducing cell adhesion and migration,promoting hydroxyapatite(HA)deposition and matrix mineralization,and inhibiting the Notch signaling pathway,making it a promising strategy for bone *** addition,SF-coated composite scaffolds can be considered prospective candidates for ligament regeneration after *** coating has been proven to enhance the mechanical properties of the substrate material,and render integral stability to the dressing material during the regeneration of skin and ***,SF coating is a potential strategy to accelerate nerve regeneration due to its dielectric properties,mechanical flexibility,and angiogenesis promotion *** addition,SF coating is an effective and popular means for dental implant surface modification to promote osteogenesis around implants made of different ***,this review can be of great benefit for further improvements in SF-coated biomaterials,and will undoubtedly contribute to clinical transformation in the future.

关键词： Silk fibroin Coating Surface modification Notch signaling pathway