Edge effect of trench-pond pattern on rice grain and economic benefit in rice-fish co-culture

AbstractThe long-term impacts of introducing frogs and fish on rice yield and soil P availability are largely underestimated and undervalued. A 9-year field experiment compared the soil phosphorus fraction dynamics and their relationship with rice yield in rice-frog-fish (RFF) cultures, rice-fish (RF) cultures and rice-only (RO) cultures in southeastern China paddy fields. The yields in the RFF and RF cultures were notably higher than those in the RO culture, by 22.1% and 6.8%, respectively. Soil total P ranged from 345.5 to 385.6 mg kg−1 among all the farming systems, with the smallest amount found in the RO culture. There were only slight changes in the distribution of soil phosphorus fractions with time. The concentrations of NaHCO3-Pi and NaHCO3-Po were significantly higher in the RFF and RF cultures compared with those in the RO culture, and most of the NaOH-Pi and NaOH-Po fractions were greater in the RFF and RF cultures compared with those in the RO culture. The rice grain yield was significantly correlated with labile P and slowly cycling P. Introducing frogs and fish might be useful for increasing soil active P supplies and meeting rice nutrient requirements. This study concluded that RFF is the best practice for improving rice grain yields and soil fertility in paddy fields.

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P2217 Serial intravascular ultrasound analysis in TAXUS II: beneficial distal edge effect with paclitaxel-eluting stents

European Heart Journal ◽

10.1016/s0195-668x(03)95211-0 ◽

2003 ◽

Vol 24 (5) ◽

pp. 421

Author(s):

M DEGERTEKIN

Keyword(s):

Intravascular Ultrasound ◽

Edge Effect ◽

Distal Edge

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An investigation on in vitro propagation of Colchicum luteum and its evaluation of colchicine for the economic benefit of rural people in West Bengal

Planta Medica ◽

10.1055/s-2007-987405 ◽

2007 ◽

Vol 73 (09) ◽

Author(s):

M Gangopadhyay ◽

R Bhattacharya ◽

D Chakraborty ◽

S Bhattacharya ◽

A Mitra ◽

...

Keyword(s):

Economic Benefit ◽

In Vitro Propagation ◽

West Bengal ◽

Rural People

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Emerging Cyber-Physical Systems : An Overview

International Journal of Scientific Research in Computer Science Engineering and Information Technology ◽

10.32628/cseit183862 ◽

2018 ◽

pp. 306-316

Author(s):

Okolie S.O. ◽

Kuyoro S.O. ◽

Ohwo O. B

Keyword(s):

Health Care ◽

Economic Benefit ◽

Physical World ◽

Cyber Physical Systems ◽

Cyber Physical System ◽

Economic Sectors ◽

Strategic Research ◽

Physical Systems ◽

Security Issues ◽

Wide Range

Cyber-Physical Systems (CPS) will revolutionize how humans relate with the physical world around us. Many grand challenges await the economically vital domains of transportation, health-care, manufacturing, agriculture, energy, defence, aerospace and buildings. Exploration of these potentialities around space and time would create applications which would affect societal and economic benefit. This paper looks into the concept of emerging Cyber-Physical system, applications and security issues in sustaining development in various economic sectors; outlining a set of strategic Research and Development opportunities that should be accosted, so as to allow upgraded CPS to attain their potential and provide a wide range of societal advantages in the future.

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Synthesis of ZnO/ZnFe2O4 nanocomposites in organic-free media and their photocatalytic activity under natural sunlight

JOURNAL OF MECHANICAL ENGINEERING AND SCIENCES ◽

10.15282/jmes.14.2.2020.20.0532 ◽

2020 ◽

Vol 14 (2) ◽

pp. 6801-6810

Author(s):

Rahmayeni Rahmayeni ◽

Zulhadjri Zulhadjri ◽

Yeni Stiadi ◽

Agusnar Harry ◽

Syukri Arief

Keyword(s):

Electron Microscopy ◽

Hexagonal Wurtzite Structure ◽

Rice Grain ◽

X Ray Diffraction ◽

Homogeneous Sphere ◽

Natural Sunlight ◽

Transmission Electron ◽

Photocatalytic Activities ◽

Free Media ◽

Photocatalytic Applications

Nanocomposite ZnO/ZnFe2O4 photocatalysts with different proportions of ZnFe2O4 were synthesized in organic-free media using metal nitric as precursors. The ZnO phase with hexagonal wurtzite structure and low crystallinity of ZnFe2O4 was confirmed using XRD (X-Ray diffraction). Different morphologies of the nanocomposites were obtained ranging from rice grain-like with a porous surface to homogeneous sphere-like nanoparticles as shown in Scanning Electron Microscopy (SEM) and TEM Transmission Electron Microscopy (TEM) studies. Magnetic properties measured by Visible Sampler Magnetometer (VSM) showed diamagnetic and paramagnetic behavior for the nanocomposites. Analysis with Diffuse Reflectance Spectrophotometer (DRS) UV-vis showed an increase the composition of ferrite in composites increasing its ability to absorb visible light. Photocatalytic activities of ZnO/ZnFe2O4 nanocomposites on the degradation of Rhodamine B dye reached 95.6% after 3 h under natural sunlight suggesting their suitability for sunlight driven photocatalytic applications.

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