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Effects of compost particle size,moisture content and binding agents on co-compost pellet properties

International Journal of Agricultural and Biological Engineering 2019年第4期12卷 184-191页

作者： Lakshika Hettiarachchi Nilanthi Jayathilake sudarshana fernando Sanja Gunawardena Department of Chemical and Process Engineering Faculty of EngineeringUniversity of MoratuwaSri Lanka International Water Management Institute P.O.Box 2075ColomboSri Lanka Sri Lanka Council for Agricultural Research Policy No.114/9Wijerama MawathaColombo 07Sri Lanka

Composting is one of the sustainable answers for the management of organic municipal *** nature of loose compost is one of the main drawbacks in promoting compost in agriculture and pelletization of compost can offset these *** this study,the optimum conditions in a die and roller pelletizer to form pellets with desirable properties;bulk density,compressive strength,pellet length and disintegration ability with compost particles of different mesh sizes(2.5,3.5,5 mm),moisture contents(25%,30%,35%,40%,45%),different amounts and types of binding agents(1%,2%,3%by weight of Rice Flour(RF),Lime,Rock Phosphate(RP))were *** increased the bulk density of *** with≤5 mm particles and 25%moisture content resulted pellets with the highest compressive strength and a higher percentage of long ***,the tested properties varied with the type and the amount binding agents used with *** was not observed in pellets free of binding agents during the tested period but binding agents enhanced *** machine efficiency and production efficiency decreased with increased moisture in compost and increased with increased compost particle ***,increased amounts of binding agents in compost reduced the machine *** work shows that compost pelletizing with and without binding agents,enhanced properties of compost required in transportation,storage and application in agriculture.

关键词： binding agents co-compost moisture content particle size pellets compressive strength

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Influence of sulfate ion concentration and pH on the corrosion of Mg-Al-Zn-Mn(GA9) magnesium alloy

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Journal of Magnesium and Alloys 2015年第3期3卷 258-270页

作者： sudarshana Shetty Jagannath Nayak A.Nityananda Shetty Department of Chemistry National Institute of Technology KarnatakaSurathkalSrinivasnagarMangalore 575025KarnatakaIndia Department of Metallurgy and Materials Engineering National Institute of Technology KarnatakaSurathkalSrinivasnagarMangalore 575025KarnatakaIndia

The corrosion behavior of Mg-Al-Zn-Mn(GA9)alloy in sodium sulfate solutions was studied over a range of concentrations and solution temperatures at different pH conditions by electrochemical techniques like Tafel extrapolation and electrochemical impedance spectroscopy(EIS).The studies were carried out in solutions with sodium sulfate concentrations 0.1M,0.5M,1M,1.5M and 2M;and at five different temperatures of 30,35,40,45 and 50℃ in a pH range of *** per the experimental data,the corrosion rate of the alloy increased with the increase in temperature,and also with the increase in concentration of sodium sulfate in the *** was observed that the rate of corrosion decreased with the increase in *** activation parameters like activation energy,enthalpy of activation and entropy of activation for the corrosion process were *** surface morphology of the alloy was examined before and after corrosion using scanning electron microscopy(SEM).

关键词： GA9 magnesium EIS Polarization SEM

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Enhancer variants reveal a conserved transcription factor network governed by PU.1 during osteoclast differentiation

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Bone Research 2018年第1期6卷 83-94页

作者： Heather A.Carey Blake E.Hildreth III Jennifer A.Geisler Mara C.Nickel Jennifer Cabrera Sankha Ghosh Yue Jiang Jing Yan James Lee Sandeep Makam Nicholas A.Young Giancarlo R.Valiente Wael N.Jarjour Kun Huang Thomas J.Rosol Ramiro E.Toribio Julia F.Charles Michael C.Ostrowski sudarshana M.Sharma Department of Cancer Biology and Genetics and Comprehensive Cancer Center The Ohio State University Wexner Medical Center College of Veterinary Medicine The Ohio State University Department of Biochemistry and Molecular Biology and Hollings Cancer Center Medical University of South Carolina Division of Rheumatology Immunology and Allergy Department of Medicine Brigham and Women’s Hospital and Harvard Medical School Division of Rheumatology and Immunology Department of Internal Medicine The Ohio State University Wexner Medical Center Department of Biomedical Informatics The Ohio State University Wexner Medical Center

Genome-wide association studies(GWASs) have been instrumental in understanding complex phenotypic traits. However, they have rarely been used to understand lineage-specific pathways and functions that contribute to the trait. In this study, by integrating lineage-specific enhancers from mesenchymal and myeloid compartments with bone mineral density loci, we were able to segregate osteoblast-and osteoclast(OC)-specific functions. Specifically, in OCs, a PU.1-dependent transcription factor(TF)network was revealed. Deletion of PU.1 in OCs in mice resulted in severe osteopetrosis. Functional genomic analysis indicated PU.1 and MITF orchestrated a TF network essential for OC differentiation. Several of these TFs were regulated by cooperative binding of PU.1 with BRD4 to form superenhancers. Further, PU.1 is essential for conformational changes in the superenhancer region of Nfatc1. In summary, our study demonstrates that combining GWASs with genome-wide binding studies and model organisms could decipher lineage-specific pathways contributing to complex disease states.

关键词： Genome-wide GWASs MITF

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