نتایج جستجو برای: by extension
تعداد نتایج: 7109068 فیلتر نتایج به سال:
Farmers need up to date information on efficient use and management of labour for agricultural production. Yet, they lack adequate and needed information. Hence, this study was undertaken to explore the sources and use of labour information by farmers in southwestern Nigeria. Multi-stage sampling procedure was used to select respondents for the study. Primary data were collected to elicit infor...
Background and purpose: Ultrasonography is a reliable and valid method to assess the strength of neck extensors and measuring the neck muscles dimensions. Cervical muscles strength and dimensions may change in different positions. The aim of this study was to compare the strength of cervical extensor muscles and dimensions of semi-spinalis capitis muscle (SECM) in three different neck positions...
Objective: Accurate assessment of lumbar range of motion is of great value for both evaluating lumbar functions and monitoring treatment progress. Recent research indicates that there is no general consensus on the most valid and reliable method of measuring spinal range of motion. The purpose of this study was to determine the intra-rater reliability of lumbar flexion and extension measurement...
agricultural extension is a client-oriented service the effectiveness and efficiency of which depends on the clientele’s satisfaction. extension agents’ performance is one of the indices of extension services' performance. extension agents’ performance has been assessed in different such ways as: study of their supervisors’ view points, study of agents’ themselves reports and as well study...
this survey research was conducted to investigate the professional facilitation competencies of agricultural extension experts. the statistical population of the study consisted of all extension practitioners working in different provincial extension departments of the ministry of jihad-e-agriculture. using cochran's formula, 232 extension practitioners were selected as sample using multi-...
the main purpose of this study was to determine factors influencing the adoption of biological control by paddy farmers. the population consisted of paddy farmers in saricounty. sampling of 260 farmers was selected by using proportional random sampling method. data were collected by means of a questionnaire. validity of questionnaire was confirmed by agricultural jihad experts of saricounty and...
The limited audio bandwidth of narrowband telephone speech degrades the speech quality. This paper proposes a method that extends the bandwidth of telephone speech to the frequency range 0–300 Hz. The lowest harmonics of voiced speech are generated using sinusoidal synthesis. The energy in the extension band is estimated from spectral features using a Gaussian mixture model. The amplitudes and ...
the purpose of research was identifying the relationship between social capital and performance of agricultural extension experts, khouzestan province, iran. the method of research was a descriptive-correlative. the sample size was agricultural extension experts (n=98). a five-point likert-type scale was used as instrument to gather data in order to measure the social capital. data were analyze...
acknowledgements i wish to express my gratitude to all those who have helped me in preparing this thesis. i would like to express my deep gratitude to my respected advisor dr. kourosh akef, whose advice and comments helped me in the early stages of the research and throughout the writing process. i would also like to express my gratitude to dr. hajar khanmohammad whose invaluable guidance he...
A novel speech bandwidth extension method based on audio watermark is presented in this paper. The time-domain and frequency-domain envelope parameters are extracted from the high-frequency components of speech signal, and then these parameters are embedded in the corresponding narrowband speech bit stream by the modified least significant bit watermark method which uses perception property. At...
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