Abstract: The purpose of this study was to explore the contents covered by FM stations in Nairobi and how the youth evaluate the preferred content. This study serves as a guide and a source of information to radio stations broadcasting for young people or organization that anticipate producing radio programs for the youth. The researcher used the descriptive survey method. This study looks at youth listenership in Nairobi because Nairobi has the biggest number of FM stations and therefore has the largest number of FM listeners. The youth in Nairobi are more exposed and outgoing and have better access to radios that elsewhere. The tool for data collection was the questionnaire, which contained both open-ended and closed-ended questions. The researcher selected 200 youths from day secondary schools in Nairobi to take part in the study. A research assistant helped in the administering of the questionnaires. The study revealed that youth tune to FM stations mainly for entertainment, news and information on issues affecting them. The study also revealed that peer influence is the leading factor influencing content preference among youth radio listeners. Other factors are personal identity and the need to escape from boredom among others. The study recommendations ways of incorporating music, talk shows, news and educational programs in the program schedule of youth programs. It also recommended identifying the various needs of youth and laying out strategies on how best to meet them.

Abstract: The purpose of this study was to explore the motivations of the youth FM listeners for the preferred contents. This study serves as a guide and a source of information to radio stations broadcasting for young people or organization that anticipate producing radio programs for the youth. The researcher used the descriptive survey method. The study’s tool for data collection was the questionnaire which contained both open-ended and closed-ended questions. The researcher selected 200 youth from day secondary schools in Nairobi to take part in the study. The study revealed that youth tune to FM stations motivated by three factors namely; need to escape from boredom, need to escape from problems and emotional release. These factors, according to researcher explain why the FM radio listenership is low.

Abstract: Well logging curves are carried out normalization correction, the conventional logging data could identify the oil and water beds, but also the oil reservoir with obvious variation and great burial depth. While the shallow buried gases reservoir, the normal interpretation ways aren’t enough to meet the production. After analyzed the characteristics of gas reservoir indication curves such as neutron, density and acoustic logging, the log interpretation methods which base on 3 porosity log curves is proposed. According to the actual well testing, these methods used to identify the shallow-buried natural gas reservoir are economically feasible.

Abstract: This paper enables to collect all the relative information about parking brake system, changes of improving the current system. Parking brake is one of the important parts of an aircraft. The function of parking brake system is to slowly stop the aircraft safely at desire place on the ground. The purpose of using the hydraulic accumulator in parking brake system is to store the hydraulic liquid under system pressure. For proper brake operation the accumulator are charged to the pressure of 207 bar. Earlier the manual hand pumping is used to charge the accumulator which is time consuming not so accurate pressure is filled in an accumulator to overcome such problems the battery operated hydraulic rig is developed. This is capable to charge the 50 parking brake accumulators of aircraft once the battery is fully charged. Since it is battery operated so no continuous 3-phase supply is required in the field. Systems will supplies hydraulic pressure to the aircraft parking brake accumulator. The DC motor is operated by a rechargeable LiFePo4 battery, it acts as a source for the motor/pump unit. The pressure switch is used to monitor the pressure in the accumulator. Inline filter is used to filter the oil of the rating 3 micron rating absolute. The LiFePO4 battery charge indication circuit is developed. Hydraulic rig build the 207 bar pressure in the accumulator in an interval of 20sec. The discharge voltage characteristic of LiFePO4 battery and temperature characteristics of pump and dc motor are studied.

Abstract: The solar radiation intensity is the primary parameter that affects the PV panel outcomes. However, the solar radiation has a group of wavelengths, and each one of them can influence the solar cell in a different way from other wavelengths. The spectrum wavelengths are related to the energy's frequencies. The present study aimed to find the wavelength/color that causes the highest PV panel outcome and the best electricity conversion. Seven colored filters were added once solo and once again combined but except one. The study results reveal that the PV panel output for the natural spectrum is the highest compared to the other colored light. This is almost certainly due to the loss of light intensity inherent to the tint of the color filters. The blue screen employment resulted in lowest output power compared to the other colored filter. The study results proved that the visible spectrum of the solar radiation affects the solar panel outcomes.