Use of Azolla as a test organism in a growth chamber of simple design

1987 ◽  
Vol 99 (2-3) ◽  
pp. 219-230 ◽  
Author(s):  
Harro W. Wong Fong Sang ◽  
Vu van Vu ◽  
Jan W. Kijne ◽  
Vu Thanh Tam ◽  
Kees Planque
Keyword(s):  
Test Organism ◽  
Growth Chamber ◽  
Simple Design

Effect of Varied Probe Length on the Resonant Frequency of a Circular Cross-Sectional Cavity

2005 ◽  
Vol 2 (2) ◽  
pp. 79
Author(s):  
Mohd Khairul Mohd Salleh ◽  
Mohamad Syukri Suhaili ◽  
Zuhani Ismail ◽  
Zaiki Awang
Keyword(s):  
Resonant Frequency ◽  
Cavity Resonator ◽  
Simple Design ◽  
Cross Sectional ◽  
Probe Length ◽  
Mode Wave ◽  
The One

A simple design of a metallic circular cross-sectional air-filled cavity is presented. Two probes of varied lengths are used to excite TE112-mode wave into the cavity to give a resonant frequency of 5.86 GHz. The experiments show that the resonant frequency of the cavity resonator decreases as the lengths of the probes are increased. The shortest probe in the range of study gives the closest resonant frequency to the one desired.

The Climate in Growth Chamber (7)

1976 ◽  
Vol 32 (3) ◽  
pp. 127-136 ◽  
Author(s):  
Zenbei UCHIJIMA ◽  
Kimio INOUE ◽  
Mitsuo INAYAMA
Keyword(s):  
Growth Chamber

scholarly journals Simple design of efficient broadband multifunctional polarization converter for X-band applications

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Thi Kim Thu Nguyen ◽  
Thi Minh Nguyen ◽  
Hong Quang Nguyen ◽  
Thanh Nghia Cao ◽  
Dac Tuyen Le ◽  
...  
Keyword(s):  
Circular Polarization ◽  
Incident Angle ◽  
Polarization Conversion ◽  
Simple Design ◽  
Cross Polarization ◽  
Polarization Converter ◽  
Frequency Bands ◽  
X Band ◽  
Cost Efficient ◽  
Patch Resonators

AbstractA simple design of a broadband multifunctional polarization converter using an anisotropic metasurface for X-band application is proposed. The proposed polarization converter consists of a periodic array of the two-corner-cut square patch resonators based on the FR-4 substrate that achieves both cross-polarization and linear-to-circular polarization conversions. The simulated results show that the polarization converter displays the linear cross-polarization conversion in the frequency range from 8 to 12 GHz with the polarization conversion efficiency above 90%. The efficiency is kept higher than 80% with wide incident angle up to 45°. Moreover, the proposed design achieves the linear-to-circular polarization conversion at two frequency bands of 7.42–7.6 GHz and 13–13.56 GHz. A prototype of the proposed polarization converter is fabricated and measured, showing a good agreement between the measured and simulated results. The proposed polarization converter exhibits excellent performances such as simple structure, multifunctional property, and large cost-efficient bandwidth and wide incident angle insensitivity in the linear cross polarization conversion, which can be useful for X-band applications. Furthermore, this structure can be extended to design broadband polarization converters in other frequency bands.

scholarly journals Simple Design of Electronics Engine Management for Motorcycle

2020 ◽  
Vol 1700 ◽  
pp. 012074
Author(s):  
Sutiman ◽  
I W Adiyasa ◽  
A Prayoga ◽  
A G Irfak ◽  
R S Ardiyan
Keyword(s):  
Simple Design ◽  
Engine Management

Simple design of a wideband and wide-angle reflective linear polarization converter based on crescent-shaped metamaterial for Ku-band applications

2021 ◽  
Vol 486 ◽  
pp. 126773
Author(s):  
Thi Quynh Hoa Nguyen ◽  
Thi Kim Thu Nguyen ◽  
Thi Quynh Mai Nguyen ◽  
Thanh Nghia Cao ◽  
Huu Lam Phan ◽  
...  
Keyword(s):  
Linear Polarization ◽  
Wide Angle ◽  
Simple Design ◽  
Polarization Converter ◽  
Ku Band

Influence of Application Method on the Activity of Butylate and EPTC in Reduced-Tillage Corn (Zea mays)

Weed Science ◽  
1987 ◽  
Vol 35 (3) ◽  
pp. 412-417 ◽  
Author(s):  
Douglas D. Buhler
Keyword(s):  
Zea Mays ◽  
Weed Control ◽  
The Other ◽  
Growth Chamber ◽  
Reduced Tillage ◽  
Corn Yield ◽  
Liquid Fertilizer ◽  
Application Method ◽  
Control Growth ◽  
Application Methods

Weed control in reduced-tillage corn (Zea maysL. ‘Pioneer 3732′) with butylate [S-ethyl bis(2-methylpropyl) carbamothioate] and EPTC (S-ethyl dipropyl carbarnothioate) was not reduced when these herbicides were applied jointly with dry or liquid fertilizer. In most cases, application with fertilizer resulted in weed control similar to that observed when the herbicide was applied in water at 285 L/ha. Butylate applied as a granular formulation also gave weed control similar to the spray at 285 L/ha. Application in 95 L/ha of water consistently resulted in reduced weed control. Corn injury was not greatly influenced by application method, and differences in corn yield appeared to be due to differences in weed control. Growth chamber bioassays indicated that both butylate and EPTC dissipated more rapidly when applied in 95 L/ha of water than the other application methods, which may explain differences in weed control observed in the field.

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