النشر العلمي

  • Comparison between rumen fermentation characteristics due to intake of coton crop residue,Sorghum crop residue,autumn pasture and casual grazing

ABSTRACT: An experiment was conducted to compare the effect of coton crop residue,sorghum crop residue,autumn pasture and casual grazing on rumen fermentation characteristics, at the Rahad Agricultural Corporation (RAC). Eight ewes were randomly selected from 81 Sudanese desert ewes. Blood samples for volaltile fatty acids (VFA) and rumen fluid samples for rumen fluid pH,ammonia(NH3) and total protozoal count were taken weekly from these 8 selected animals.The study revealed that when the animals fed on cotton crop residue,the rumen pH,NH3, total protozoal number and the molar proportion of acetate were significantly (P<0.05) higher than when they fed on other treatments. Generally, the sdudy showed that there is trend of increasing rumen acetate with fibrous feed intake, i.e., cotton and sorghum crop residues.          

published in Gezira Journal of Agricultural Science

  • Effect of a medicated home-made lick block on the performance of dairy cows in the Rahad Scheme

Abstract

Endoparasites are those organisms living within their host in the gut, body cavities, liver, lungs, gall bladder and blood or within intercellular spaces, tissues or cells of the host. Since they totally depend upon their host, endoparasitism is also referred to as infection (Bilma, 2009). The most important and widely prevalent nematodes are Oestertagia sp., Trichostrongylus sp. and Oesophagostomum sp. in cattle and buffaloes (Karki, 2005). During the dry season, shortages of fodder place many animals under nutritional stress, which can influence the severity of gastrointestinal infection (Fritsche et al., 1993). The general health of the animal such as reduction in blood haemoglobin concentration (Lassisi et al., 2001) and packed cell volume (PCV), red blood cells and total serum protein were also observed by Reyaz et al. (2007).

 

published in Gezira Journal of Agricultural Science

  • An Application of the Keystroke Dynamics Biometric for Securing PINs and Passwords

This paper investigates the use of the keystroke dynamics biometric as an added security for passwords and PINs (Personal Identification Numbers) used in POS (Points of Sale) and banking Automatic Teller Machines (ATM).
The paper employs an algorithm using the keystroke dynamics which attempts to minimize compromising the security when the imposter get hold of both user-ID (user card) and password.
Experiments were conducted using passwords of varying length by a group of users. The paper reports the results of the experiments and recommends an optimum number of digits in passwords when this biometric is used.
The experimental results were encouraging for PINs of length 4-12 digits where the rate of rejection of legitimate users (FRR) was zero while the rate of acceptance of the imposter (FAR) was below 20%.

published in World of Computer Science and Information Technology Journal (WCSIT)

  • Controlling Home Devices for Handicapped People via Voice Command Techniques

Man, has five senses representing natural windows
of communication between him and the outside world. Talking is
the best means of communication existing. Speech recognition
can be applied in computer devices to control the useful software
to facilitate people in their life. Handicapped people suffer the
difficulty of movement inside their home to spend some basic
needs and necessities, usually need another person to help them
in that. This assistance is achieved through the design of a special
system for handicapped people to control home devices by using
voice commands. This paper shows a way to control home devices
with computer through interface circuit based on the
Microcontroller and Universal Serial Bus interface. The design
and implementation processes were carried out in two parts
hardware and software. The requirements of hardware design
and implementation are wireless microphone, personal computer,
home devices and interface circuit connected between personal
computer and homes devices via USB cable. Interface circuit was
designed, simulated and tested using Proteus and MikroC.
Software system was designed and implemented using Microsoft
Visual Basic programming language and Microsoft Speech
Recognition engine. To use a system, the person gives a voice
command to the computer via wireless microphone; the
computer card converts voice command into a digital format.
The acoustical software model breaks the word into phonemes.
The software language model compares the phonemes to
commands, if it is, the programming language translates the
command to digital value, and after that transfer the digital value
to interface circuit to control the specified home device. The
research recommends using this system to control home devices
remotely through the internet or smart mobile phone.

published in International Conference on Computing, Control, Networking, Electronics and Embedded Systems Engineering,

  • Fuzzy Logic Control of the Air Temperature in the Infant Incubator

Incubators are great interest for some newborns, Some parameters are to be monitored and their accuracy remains an important matter and temperature remains the most important. This paper focused on the control problem of temperature parameter. The question remains the incubator air temperature can be simultaneously used in the control. The purpose of this paper is to address this question by developing a fuzzy logic control which incorporates incubator air temperature to control the heating. The paper presents a model of heat exchange between the newborn and its environment and a robust fuzzy control algorithm. Digital simulation results show that the designed system has good output accuracy for a high dynamic input range.

published in International Journal of Engineering Technology, Management and Applied Sciences

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