scholarly journals High frequency multiplication of shoots using axillary buds for production of elite lines of <i>Stevia rebaudiana</i>

2013 ◽  
Vol 04 (07) ◽  
pp. 781-784 ◽  
Author(s):  
Kavyashree Rangappa ◽  
Divya Shalini Aind
Keyword(s):  
High Frequency ◽  
Stevia Rebaudiana ◽  
Axillary Buds ◽  
Frequency Multiplication

scholarly journals Performance Analysis of Optical Frequency Multiplication Based Bi-Directional Rof using FPI

2020 ◽  
Vol 9 (6) ◽  
pp. 443-448
Keyword(s):  
High Frequency ◽  
Power Level ◽  
Cost Effective ◽  
Optical Signal ◽  
Relative Strength ◽  
Base Stations ◽  
Optical Frequency ◽  
Frequency Multiplication ◽  
Radio Signals ◽  
Optical Frequency Multiplication

A cost-effective novel method, Optical Frequency Multiplication using a Fabry Parot Interferometer (FPI), is demonstrated with Optisystem for generating micro/ millimeter signals optically and distributed to several remote located base stations. The simulation results show that the relative strength and frequency of the harmonics is strongly dependent on sweep frequency, FSR, Frequency Deviation and FM index. It is observed that optical uplifting of 150 Mbps AM radio signals to 11.8, 17.8 and 23.8 GHz frequencies corresponding to 4th, 6th and 8 th harmonic after transmission in optical downlink with the power level of 10 dbm, -10 dbm and -20 dbm respectively. Similarly, ASK data is recovered from the 4th harmonic of 12 GHz. To down-convert the uplink AM-RF signal of 5.8 GHz to a low IF of 200 MHz, 6 GHz high-frequency carrier generated by OFM is used, which is then sent back to the Central Station. QAM data at 550 MHz subcarrier is also recovered at CS successfully from 4th harmonic. Hence, the OFM system is used successfully for multiple functions concurrently, such as high-frequency-carrier-generation, optical signal transportation, frequency up-conversion, and bi-directional data transmission through generated harmonics.

Photonic generation of microwave binary modulation signals with high frequency multiplication factors

2019 ◽  
Vol 443 ◽  
pp. 96-103 ◽  
Author(s):  
Guodong Wang ◽  
Shanghong Zhao ◽  
Kun Zhang ◽  
Tao Lin ◽  
Xuan Li ◽  
...  
Keyword(s):  
High Frequency ◽  
Frequency Multiplication ◽  
Binary Modulation ◽  
Photonic Generation

Approach to Generate High-frequency Microwave Signal with Frequency Multiplication Factor Tunability by Using Cascaded Mach-Zehnder Modulators

2019 ◽  
Vol 48 (3) ◽  
pp. 307002
Author(s):  
丛雯珊 CONG Wen-shan ◽  
余岚 YU Lan ◽  
沃江海 WO Jiang-hai ◽  
王亚兰 WANG Ya-lan ◽  
王安乐 WANG An-le
Keyword(s):  
High Frequency ◽  
Microwave Signal ◽  
Multiplication Factor ◽  
Frequency Multiplication ◽  
High Frequency Microwave

scholarly journals Effects of Liquid Medium on Rooting and Acclimation of Regenerated Microshoots of Banana (Musa sapientum L.) cv. Sagar

1970 ◽  
Vol 16 (1) ◽  
pp. 11-18 ◽  
Author(s):  
M Atique Akbar ◽  
Shyamal K Roy
Keyword(s):  
Liquid Medium ◽  
High Frequency ◽  
Shoot Proliferation ◽  
Coconut Water ◽  
Axillary Buds ◽  
High Humidity ◽  
Ms Medium ◽  
Sand Soil ◽  
Half Strength ◽  
Number Of Shoots

A regeneration protocol ensuring a high frequency rooting of micro-shoots derived from apical and axillary buds of suckers of banana cv. Sagar was achieved by using liquid medium. When the explants were cultured on MS medium supplemented with 0.5 mg/l each of BA, Kn and NAA, a large number of shoots developed. With the progression of the number of subcultures, shoot proliferation was enhanced. Addition of 10 % coconut water to the medium increased the number of shoots per culture and growth of individual shoots. Shoots rooted well within two weeks, when they were separated individually and sub-cultured in 1.0 mg/l IBA supplemented half strength MS liquid and agar-gelled medium but rooting percentage and their growth were superior in the liquid medium to agar-gelled medium. Rooted plantlets were transferred to small polythene bags containing sterile sand, soil and humus (1 : 2 : 1) and maintained with a high humidity for acclimation. Acclimation and transplantation performances were found to be superior in plants that were rooted in the liquid medium.Key words: Banana, Liquid medium, Regeneration, Acclimation, TransplantationDOI = 10.3329/ptcb.v16i1.1100Plant Tissue Cult. & Biotech. 16(1): 11-18, 2006 (June)

High frequency multiplication of Phalaenopsis gigantea using trimmed bases protocorms technique

2006 ◽  
Vol 111 (1) ◽  
pp. 73-79 ◽  
Author(s):  
Rosmah Murdad ◽  
Kuik Sok Hwa ◽  
Choo Khen Seng ◽  
Mariam Abd. Latip ◽  
Zaleha Abdul Aziz ◽  
...  
Keyword(s):  
High Frequency ◽  
Frequency Multiplication
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