نتایج جستجو برای: medium low technology

تعداد نتایج: 1802047  

Journal: :علوم گیاهان زراعی ایران 0
فرانک روزبه موسسه اصلاح و تهیه بذر چغندر داریوش داودی پژوهشکده بیوتکنولوژی کشاورزی سهیلا تکلو پردیس کشاورزی و منابع طبیعی دانشگاه تهران مژگان کوکایی نژاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران سمر خیامیم پردیس کشاورزی کرج

using haploid technique in breeding of sugar beet as an allogamous plant will facilitate breeding efforts. in this method,a pure line with a desirable genotype can be achieved by unfertilized ovule culture. therefore ovule culture was done from populations with numbers: 27621, 27624, 27626 and 27629. young flowering stems were collected and ovules were isolated from the flower buds after steril...

Journal: :Wireless Networks 2021

Abstract With the rapid development of Internet Things (IoT) in 5G age, construction smart cities around world consequents on exploration carbon reduction path based IoT technology is an important direction for global low city research. Carbon dioxide emissions small are usually higher than that large and medium cities. However, due to huge difference data environment between Medium-large sized...

Journal: :Energies 2023

With the rapid development of power electronics technology and its successful application, many demonstration projects medium/low-voltage DC (M-LVDC) distribution systems have been constructed. The transformer (DCT) is key equipment in M-LVDC system for interconnecting MVDC LVDC buses. In this paper, characteristics DCTs are summarized. existing topologies analyzed, relevant control strategies ...

The application of iron-silica (Fe-Si) nanoparticles for the enhancement of the Pseudomonas aeruginosa growth and rhamnolipid production in molasses medium was studied. The experiments were designed based on the response surface method (RSM) to optimize growth and rhamnolipid production. The concentration of nanoparticles and the time required to add nanoparticles to culture medium were conside...

Ajieh P. C. Okoro B. O.

This study examined farmers’ perception and adoption of yam minisett technology. The study was carried out in Anambra State, Nigeria. A sample size of 120 yam farmers was used for the study. Data were collected using a structured and validated interview schedule. Data generated for the study were summarized using descriptive statistics such as frequency, percentage and mean scores while the Sig...

Journal: :Lecture notes in civil engineering 2023

Abstract The essence of blasting action is the interaction between explosive energy and medium, effect depends on characteristics energy, medium law. multi-boundary comprehensive theory stonework establishes functional relationship among boundary conditions, throwing rate quantity. In this paper, a formula for calculating charge deep-hole put forward, experimental study carried out based HHT an...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده علوم پایه 1388

introduction acetic acid bacteria are large group of obligate aerobic gram negative bacteria with the ability to oxidize ethanol to acetic acid (1). they are widely distributed in natural habitats and classified in family acetobacteraceae. members of this family are useful in industrial production of vinegar(2). acetic acid bacteria (aab) can use substrates as glucose, ethanol, lactate or glyc...

2011

To overcome the limitations of InfraRed (IR) remote control technology, ZigBee® RF4CE specification was first published in May 2009. It quickly became the dominant core technology that drives development of next generation remote control applications. ZigBee RF4CE technology uses IEEE 802.15.4 as its PHYsical (PHY) and Medium Access Control (MAC) layers, and builds network layer on top of them....

2009
Ramayah Thurasamy Osman Mohamad Azizah Omar Malliga Marimuthu

This paper presents the research agenda that has been proposed to develop an integrated model to explain technology adoption of SMEs in Malaysia. SMEs form over 90% of all business entities in Malaysia and they have been contributing to the development of the nation. Technology adoption has been a thorn issue among SMEs as they require big outlay which might not be available to the SMEs. Althou...

2017
Atula S D Sandanayaka Toshinori Matsushima Fatima Bencheikh Kou Yoshida Munetomo Inoue Takashi Fujihara Kenichi Goushi Jean-Charles Ribierre Chihaya Adachi

The demonstration of continuous-wave lasing from organic semiconductor films is highly desirable for practical applications in the areas of spectroscopy, data communication, and sensing, but it still remains a challenging objective. We report low-threshold surface-emitting organic distributed feedback lasers operating in the quasi-continuous-wave regime at 80 MHz as well as under long-pulse pho...

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