نتایج جستجو برای: electrical conductivity ec

تعداد نتایج: 264877  

Journal: :Agronomy 2021

Arugula (Eruca sativa) is cultivated using hydroponic techniques in greenhouses to fulfill high year-round demand, but its nutrient management production has not yet been standardized, potentially leading limited quality and productivity. Aiming address this issue, we investigated the effect of electrical conductivity (EC) on yield, nutritional phytochemical properties arugula. The model cultiv...

2009
M. S. Ha O. Y. Kwon H. S. Choi

The improvement of electrical conductivity of carbon-fiber reinforced plastics (CFRP) has been investigated by conductive silver nano-particles coating for the purpose of aircraft lightning protection. Silver nano-particles in colloid were sprayed on the surface of carbon fibers, which were then impregnated by epoxy resin to form a CFRP specimen. Electrical resistance was measured by contact re...

The purpose of this study is to use the thermal and electrical conductivities of copper oxide nanoparticles and carbon nanotubes for the preparation of high-performance nanofluids for achieving better heat transfer properties. These nanofluids consist of a water/Ethylene Glycol solution containing single-wall carbon nanotubes (SWCNTs) and copper oxide nanoparticles (CuONPs). The effects of such...

2017
Na Lu Emmanuel L. Bernardo Chayanit Tippayadarapanich Michiko Takagaki Natsuko Kagawa Wataru Yamori

The global demand for medicinal plants is increasing. The quality of plants grown outdoors, however, is difficult to control. Myriad environmental factors influence plant growth and directly impact biosynthetic pathways, thus affecting the secondary metabolism of bioactive compounds. Plant factories use artificial lighting to increase the quality of medicinal plants and stabilize production. Ph...

2002
A.Elia F. Serio A. Parente P. Santamaria G. Ruiz Rodriguez

Tomato plants (cv. Naomi) were grown until the 8 cluster in a greenhouse during Aug. 1998 – Jan. 1999 using a closed sub-irrigated soilless system. Plants were raised in pots (10 L) filled with peat and pomice (1:2 v:v) substrate. Forty days after transplanting 3 nutrient solutions (NS) with electrical conductivity (EC) of 2, 4, and 6 dS/m were applied to the plants. The ECs were achieved by pr...

Journal: :GSC Advanced Research and Reviews 2021

Four central rivers of Bangladesh were selected for this research. The name the is Buriganga, Dhaleshwari, Shitalakshya and Meghna. Electrical Conductivity (EC), pH, Total Dissolved Solid (TDS), Salinity four river waters evaluated. EC values water Meghna found to be 366.0, 299.2, 290.4 130.8 µS/cm respectively. Similarly, pH 7.67, 7.38, 7.30 7.18 higher Buriganga than that other three waters. ...

Journal: :Water Practice & Technology 2023

Abstract The aim of the study was to evaluate efficiency Lemna minor purify synthetic dairy wastewater (SDW) and real (RDW), both diluted undiluted. Results showed that significantly reduced electrical conductivity (EC); removal for EC 19.4% in RDW 9.8% SDW. Higher values were recorded (DRDW) (41%) (DSDW) (35.8%). Total suspended solids slightly (14%) SDW (13.5%), compared DSDW (25%) DRDW (29%)...

Journal: :Agronomy 2023

Balanced nutrients are essential for healthy plant growth, but there is no sensor available to monitor such as N and K. Electrical conductivity (EC) one of the key parameters that could be adopted nutrient contents because soil EC influenced by nutrients. Therefore, main objective this study was examine effects different basal fertilizers, including inorganic, organic, compost application ratio...

2016

The dynamic viscosity was measured for water-phenol binary mixture at several concentrations and temperatures to determine the critical concentration and critical temperature. The critical concentration was determined at XC=3.90% by weight of phenol, the critical temperature was TC=67.0°C using the viscosity measurement while TC=67.8°C from an indication of electrical conductivity measurements....

2008
Larry Pryor

The debate over the pros and cons of aluminum vs. copper conductors has been discussed for many years. Many of the concerns are based on old information and also misinformation. These concerns center on the very different properties of the two materials and their suitability for application within the Electrical Equipment Industry. Reliable performance from the conductors, the joints and termin...

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