DEVELOPMENT OF UNAUTHORIZED CELL-PHONE USAGE SNIFFING SYSTEM USING EMBEDDED SYSTEM
Published In: INTERNATIONAL CONFERENCE ON ADVANCES IN COMPUTING, ELECTRONICS AND ELECTRICAL TECHNOLOGY
Author(s): LAWAL , W. , OGUNTI , E.O. , OLUWAJOBI , F.I
Abstract: The advent of wireless technology and advances in telecommunications has brought great advantage to the human society and helped to contribute to globalization. While this is laudable, the unauthorized use of this phone has contributed to some of the social vices seen in the society, such as examination malpractices, computer hacking, interference with sensitive health equipment, and organized crime within and outside correctional facilities. In a bid to curbing some of these excesses, a good mechanism is required to detect indiscriminate use of mobile phone in public places to avoid public indiscipline. In this work, a mobile phone sniffer is designed using appropriate computer aided design (CAD) tools multism 11.0.The code is written and embedded using Intel 8051 Microcontroller series. The sniffer can detect signals of all brands of mobile phones in an active mode and inform about the detected signals through a blinking Light Emitting Diode (LED) and a Buzzer.
- Publication Date: 03-Aug-2014
- DOI: 10.15224/978-1-63248-005-1-121
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IN VITRO EFFECT OF AZADIRACHTIN-A, A TETRANORTRITARPINOID OF NEEM SEED KERNEL, ON RAT SPERMATOZOA
Published In: INTERNATIONAL CONFERENCE ON ADVANCES IN APPLIED SCIENCE AND ENVIRONMENTAL ENGINEERING
Author(s): RAVINDRANATH H. ALADAKATTI , UMADEVI C. JADARAMKUNTI
Abstract: Since, there is only few documented evidence referring to assessment of the clear specific actions of medicinal plant source or active constituents in rodent model, the present study is undertaken to evaluate the effective concentration of technical azadirachtin-A, a tetranortritarpinoid of neem seed kernel, to immobilizes the cauda epididymal spermatozoa within 20 seconds and effectively inhibits sperm motility, viability and plasma membrane integrity in a dose-dependent manner. Spermicidal efficacy was evaluated in vitro by a modified Sander–Cramer test using different concentrations. The mode of spermicidal action was evaluated by (a) Sperm morphology and viability tests (b) hypo-osmotic swelling (HOS) tests and (c) transmission electron microscopy. The minimum effective concentration (MEC) of azadirachtin-A for 100 % immobilization of sperm in 20 secs was around 4.50µg/million sperm. No morphological changes were found in the sperm head, midpiece or tail and no viable sperm seen. F
- Publication Date: 03-Aug-2014
- DOI: 10.15224/978-1-63248-004-0-01
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