Hassan Y Ibrahim - Academia.edu (original) (raw)

Papers by Hassan Y Ibrahim

In this paper, Novel method, Particle Swarm Optimization (PSO) algorithm, based technique is prop... more In this paper, Novel method, Particle Swarm Optimization (PSO) algorithm, based technique is proposed to estimate and analyze the steady state performance of self-excited induction generator (SEIG). In this novel method the tedious job of deriving the complex coefficients of a polynomial equation and solving it, as in previous methods, is not required. By comparing the simulation results obtained by the proposed method with those obtained by the well known mathematical methods, a good agreement between these results is obtained. The comparison validates the effectiveness of the proposed technique.

Asian journal of agriculture and rural development, 2012

The study assessed gender participation and decision making role in economic activities using dat... more The study assessed gender participation and decision making role in economic activities using data collected from 120 respondents. The results revealed that female participation was frequent in crop post-harvest activities and poultry management while male participation was frequent in crop pre-harvest operations only. Female respondents participated occasionally in home gardening, goat rearing, hair dressing and food processing. Educational level, years of experience, personal income and credit obtained significantly influenced the level of gender participation in economic activities. The Males always made decisions on selection of crop variety, spending money, saving money, buying of necessities, and children‟s education, while females always made decision on types of food for home consumption only. Age and income of respondents were the significant factors that influenced the level of gender involvement in decision making. Provision of credit facilities, sensitization on the impo...

Intellectual Discourse, 2017

The belief in the expected redeemer or the Mahdī is a well-known concept in the history of Islam.... more The belief in the expected redeemer or the Mahdī is a well-known concept in the history of Islam. However, the notion has been opened to several interpretations and misinterpretations from various Islamic sects, each asserting that its own version of the Mahdiyyah is authentic and valid. As a result, several Islamic movements were orchestrated under the banner of the Mahdiyyah; prominent among them in Africa are those of Muhammad Ibn Tumart (1080-1130), the patron of the Muwaḥḥidūn State in north Africa, Muḥammad AImad ibn ʿAbdullāh (1844-1885), the architect of the Mahdist State in the Sudan (1881-1898) and Sheikh ʿUsmān Dan Fodio (1754-1817), the founder of the Sokoto Caliphate. This article explores the authenticity of the notion of the Mahdiyyah in Islam, which constitutes the basis for the main discourse of the study, namely, the status of the Mahdiyyah as conceived by Sheikh Usman Dan Fodio, and the resultant impact of the Sheikh’s Mahdiyyah on the Sudanese Mahdiyyah.

Journal of applied microbiology, Jan 26, 2018

To screen the newly recorded alga Grateloupia doryphora in the Egyptian Mediterranean Sea for ant... more To screen the newly recorded alga Grateloupia doryphora in the Egyptian Mediterranean Sea for antimicrobial activity. Algal samples were collected from the Eastern Harbor, Alexandria, Egypt during summer (2016 and 2017). The dry and fresh methanolic, ethanolic and ethyl acetate algal extracts were tested against Bacillus subtilis, Enterococcus faecalis, and Staphylococcus aureus as gram-positive bacteria, Escherichia coli, Pseudomonas aeruginosa as gram-negative bacteria and one yeast strain Candida albicans. A three way analysis of variance (ANOVA) showed significant differences based on the algal form, type of solvents and microbial species. The fresh methanolic and ethyl acetate extracts had equal effects on the tested pathogens with means of 14.44 and 15.16, respectively. However, the fresh algal extract was more effective on all the tested organisms than the dried material, except for ethyl acetate and ethanol extract on B. subtilis (31 and 23 mm), respectively. In fact, P. aer...

Tropical and Subtropical Agroecosystems, Dec 26, 2012

international conference on control engineering and communication technology, Dec 7, 2013

This paper presents fuzzy controller for maximum power point tracking (MPPT) for photovoltaic sys... more This paper presents fuzzy controller for maximum power point tracking (MPPT) for photovoltaic system. The paper investigates the efficiency of direct coupling of dc pumping system with the photovoltaic and then when using the MPPT. The paper presents modeling and analysis for dc-dc boost converter. The pulse width modulation (PWM) of the considered converter is determined by the fuzzy controller output depending on the nature of the load and source. The insolation levels variation has been taken into account. The fizzy controller uses the error and change of error to determine the maximum power point at each insolation level. Finally comparison between fuzzy logic controller and direct connection has been carried out which has shown that, the effectiveness of fuzzy controller to draw much power and presents fast system response against change in working conditions is much better than direct coupling method.

Geologische Rundschau, 1981

A sequence of events which has been recognized in the two basement regions of Somalia is outlined... more A sequence of events which has been recognized in the two basement regions of Somalia is outlined on the basis of new field and petrographic data and pre-existing published and unpublished reports. The evolution of the Somalian basement took place during the Pan-African event. However, much detailed work is necessary before the history of the basement can be integrated into the more detailed Pan-African picture recognized in the neighbouring regions. Zusammenfassung Eine Folge von Ereignissen, die sich in den zwei Basement-Regionen Somalias erkennen lieBen, wird auf der Basis neuer Geliinde-und petrographischer Daten und friiherei publizierter und nicht publizierter Berichte umrissen. Das Basement von Somalia entwickelte sich wiihrend des Panafrikanischen Ereignisses. Viel Detailarbeit ist jedoch noch zu leisten, bis die Geschichte des Basements in das detailliertere Bild Panafrikas, wie es aus den Nachbarregionen gewonnen wurde, integriert werden kann. R6sum~ Dans les deux r~gions de la Somalie ou le socle affleure, on a reconnu une succession d'6v~nements sur la base de nouvelles donn6es g6ologiques et p~trographiques et de travaux pr6-existants, publi6s et non publi~s. L'~volution du socle de la Somalie se d6roula pendant l'~v~nement Pan-Afrieain. Toutefois, beaucoup de travail doit ~tre encore fait avant que rhistoire du socle somalien puisse 8tre int6gr~e dans un cadre Pan-Afrieain plus d&aill6, tel qu'on le eonnait dans les r~gions voisines. KpaTKoe co~ep~I~RHHe Ha 0CHOBaHHH HOBBIX ~aHHIaIX, n0JIyqeHHblX IIpH n0JIeBB~X paSoTax H neTpo-rpa~HqecKHx HCCJIe,~OBaHHYIX, a TaK~Ke H3 npe;~HHX onySJ~HKOBaHH~IX H e~4e HeonyS~KOBaHnLIX MaTepna~oB yCTaHOBH~H, ~TO OCHOBaHHe CoMa~H~ BO3H~K~0 B nepHo~ oSpa3oBanHa YIaHadppH~aHcK0f~ n~aT~opM~L O~HaKo 7~a oKonqaTe~-Horo ey~eHHa o6 HCTOpHH 05pa3oBaHH~ 0CHOBaHH~ CoMa~HH Ha l~aHadpp~-KaHCKOffI nJzaT~bopMe Hy~HI, I ~aJIbHef~He Hccne~[oBaHH~ B coce~HHX pa.~oHax. Basement rocks outcrop in two main areas: 1) the Bur area in Southern Somalia, and 2) the coastal ranges in Northern Somalia (Fig. 1). A minor outcrop of crystalline rocks occurs in the Nogal valley (central-northern Somalia) and the very poor data presently available indicate that they consist of syenites.

AATCC Journal of Research, 2014

ABSTRACT A Ag-nanoparticle (Ag-NP) dispersion was successfully synthesized using a glucose/Ag-nit... more ABSTRACT A Ag-nanoparticle (Ag-NP) dispersion was successfully synthesized using a glucose/Ag-nitrate/polyvinyl pyrrolidone (PVP)/ sodium hydroxide reduction formulation. The resultant Ag-NP dispersion was successfully used alone and in combination with Disperse Orange 31 or Basic Blue 9 dyes to impart antibacterial properties against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria to polyester and polyacrylonitrile fabrics respectively using microwave treatment. An increase in Ag-NP dispersion concentration by 50% and prolonged microwave irradiation by two minutes significantly improved the antibacterial performance. The EDX spectrum of the Ag-NP loaded substrates confirmed the presence of elemental Ag (Ag0) on the fabrics’ surface. Addition of selected disperse or basic dye to the Ag-NP treatment bath produced disperse or basic dyeings with darker depth of shades and remarkable antibacterial functionality.

Research Journal of Microbiology, 2009

Applied Mechanics and Materials, 2014

Ground has been proven that it is able to supply cooling and heating resulting in significant red... more Ground has been proven that it is able to supply cooling and heating resulting in significant reduction of electricity consumption. This paper discusses potential of ground towards implementation of ground thermal storage by using ground heat exchanger (GHE) to supply passive cooling for any application. Analysis has been conducted based on empirical equation from conduction heat transfer for depth up to 6 m and thermal diffusivity from 0.04 to 0.1 m2/day. The main input parameters were obtained from local weather station for three consecutive years. The results showed that significant reduction of temperature occur at depth below than 2.0 m in which cooling can be supplied constantly throughout the year. Temperature amplitude also gets attenuated relatively with depth in which amplitude less than 1°C occur at depth more than 4 m for thermal diffusivity 0.04 m2/day. In addition, thermal diffusivity plays important role in determining ground temperature variation. It has been obtaine...

Pediatrics international : official journal of the Japan Pediatric Society, 2014

Thrombotic thrombocytopenic purpura (TTP) is a rare but life-threatening condition characterized ... more Thrombotic thrombocytopenic purpura (TTP) is a rare but life-threatening condition characterized by thrombotic microangiopathy. The standard treatment for TTP is plasmapheresis. For refractory or relapsing cases, various immunosuppressive agents have been tried, and among them rituximab has shown promising results. TTP is rarer in the pediatric age group and the use of rituximab in children with TTP is limited. Reported herein is the successful treatment of relapsing autoimmune TTP with rituximab in a 12-year-old girl.

Applied Mechanics and Materials, 2014

Malaysia has an abundance of renewable energy resources. However, the implementation proved to be... more Malaysia has an abundance of renewable energy resources. However, the implementation proved to be difficult, as many factors have to be considered, mainly economical factor. Furthermore, currently there is no known framework to establish the feasibility study of renewable energy technology implementation. This paper serves as an initial study on the application of fit-viability framework for the implementation of RE technology, focussing in Malaysia. A simple case study has been performed based on the Feed-in Tariff mechanism, an the fit-viability framework proved to be useful in RE technology consideration.

Chemical Engineering and Science, 2014

Syrian petroleum coke, produced by a delayed coking unit, is characterized by a high percentage o... more Syrian petroleum coke, produced by a delayed coking unit, is characterized by a high percentage of fines which tends to reduce its commercial value. Blending coke fines using appropriate binders, such as bitumen and polyacrylic acid, can lead, however, to an improved coke that is similar in structure, appearance and other properties to better-quality coke lumps. In this work, samples of Syrian coke fines were blended with Polyacrylic acid or bitumen and thermally treated at high temperatures and increased residence time in an inert atmosphere of nitrogen at atmospheric pressure. This treatment led to a general improvement of the petcoke qualities. The rate of desulphurization obtained as a result of the thermal treatment was 88% for most coke fines. A small overall reduction in the calorific value of the treated coke was also observed, but this was less than 8% in general.

Journal of Agricultural Science, 2010

This study evaluated the economic empowerment potentials of groundnut processing by women in rura... more This study evaluated the economic empowerment potentials of groundnut processing by women in rural areas of North central Nigeria state using a sample of 100 women processors randomly selected from the study area. Data analysis was done using Descriptive statistics, Net Farm Income Model and Data Envelopment Analysis (D.E.A). An average net returns of N10, 586.6 was obtainable within a processing cycle. The average pure technical and scale efficiency scores were 80 and 83 percent respectively. The major constraints confronting the processing of groundnut include inadequate capital for expansion and lack of processing machines. A significant opportunity exists for empowering rural women through groundnut processing.

Journal of Agricultural Science, 2010

The outbreak of Avian Influenza in Nigeria has led to job losses, health problems, reduction in e... more The outbreak of Avian Influenza in Nigeria has led to job losses, health problems, reduction in expected income of poultry farmers and a decrease in the demand for poultry products. This study was designed to determine the monetary value of stock lost, identify the determinants of the future employment decisions and the constraints faced by poultry farmers in the Federal Capital Territory of Nigeria. Data for the study was collected from 40 poultry farmers who have suffered losses due to the outbreak of the disease. The total monetary value of the stock lost in the study area as at 2007 was N142, 741, 000. 45% of the respondents have abandoned poultry production while 32.5% have reduced the size of their poultry business. Furthermore, only 22.5% have restarted their poultry business without reducing the quantity of the initial stock before the outbreak of the disease. The determinants of the decision to abandon were; amount of compensation received, educational level of the poultry farmer and total number of stock lost. The factors influencing the decision to reduce the scale of operation were; level of education of the farmer, years of experience in poultry production and the amount of compensation received from government. The post Avian Influenza outbreak constraints faced by the farmers were; inadequate compensation, low patronage by customers and low level of accessibility to agricultural credit institutions.

The Muslim World, 2007

believes in the modernity project, an enlightened stage in a teleological history that is stymied... more believes in the modernity project, an enlightened stage in a teleological history that is stymied by obscurantists and those who seek refuge in selfsufficient orthodoxy and retreat into petrified values. This brief discussion is exceptionally well-phrased and carries polemic value for believers in pluralism and inclusiveness. Goytisolo's parting reflections are a plea to support a dialogue of civilizations over a clash of civilizations. He compares these efforts to the 15 th century Juan de Segovia, a Spanish bishop who ordered that the Qur 'a n be translated in order to further mutual understanding, and recommended a three-stage solution: a truce of armed hostilities, steps to improve diplomatic, commercial, and cultural ties, and as trust grew, a religious authorities' conference to determine the common ground between the warring sides. This remarkably progressive and novel idea in its times-a classic effort at problem-solving and conflict resolution-never gained serious traction, as he was relegated to isolation in a Swiss monastery. Goytisolo and his intellectual fellow-travelers could be latter-day de Segovias who, if only listened to, might change history's course with an ecumenical vision. This readable work, valuable for general readers, and with food for thought for specialists, may end up with de Segovia's fate. Nevertheless, its call to engagement is noble and necessary amid the escalating hostilities in our era.

Measurement Science and Technology, 2011

Tropospheric delay is one of the dominant global positioning system (GPS) errors, which degrades ... more Tropospheric delay is one of the dominant global positioning system (GPS) errors, which degrades the positioning accuracy. Recent development in tropospheric modeling relies on implementation of more accurate numerical weather prediction (NWP) models. In North America one of the NWP-based tropospheric correction models is the NOAA Tropospheric Signal Delay Model (NOAATrop), which was developed by the US National Oceanic and

Journal of Perinatology, 2004

This study aimed to compare nitrogen balance and biochemical tolerance of early aggressive versus... more This study aimed to compare nitrogen balance and biochemical tolerance of early aggressive versus late total parenteral nutrition in very-low-birthweight (VLBW) infants over the first week of life. STUDY DESIGN: In all, 32 ventilator-dependent preterm infants were prospectively randomized into two groups. The Early Total Parenteral Nutrition (ETPN) group received 3.5 g/kilo-day amino acids (AA), and 3 g/kilo-day of 20% Intralipid (IL), starting within 1 hour after birth. The Late Total Parenteral Nutrition group (LTPN), started on a solution containing glucose during the first 48 hours of life, followed by 2 g/kilo-day of AA and 0.5 g/kilo-day of IL. For the LTPN group AA and IL were each increased by 0.5 g/kilo-day to a maximum of 3.5 and 3 g/kilo-day, respectively. RESULTS: Nitrogen retention was significantly greater in all infants in the ETPN group throughout the 7-day study period. All infants in the LTPN group were in negative nitrogen balance during the first 48 hours of life, while those in the ETPN group were in positive nitrogen balance throughout. The mean (±SD) nitrogen retention in the ETPN was 384.5 mg/kilo-day (±20.2), compared to 203.4 mg/kilo-day (±20.9) in the LTPN group (p <0.001). In each of the first 5 days of life, energy intake was significantly greater in the ETPN group compared to the LTPN group (p <0.001). Mean fluid intake during the study period was similar between, the ETPN and the LTPN groups (162 and 165 cm 3 /kilo-day, respectively). The mean weight gain was similar in the ETPN and LTPN groups. Plasma levels of cholesterol, triglycerides, bicarbonate, blood urea nitrogen, creatinine, and pH were similar in both groups during the study period. Mean (±SD) serum glucose in the LTPN group was higher, but remained in normal range (101.1±5.2 and 80.8±5.4 mg/kilo-day, respectively). The mean peak serum bilirubin was significantly higher in the ETPN group, compared to The LTPN group (7.7 and 6.2 mg/dl). CONCLUSION: This study shows that aggressive intake of AA and IL can be tolerated immediately after birth by VLBW infants. Also, ETPN significantly increased positive nitrogen balance and caloric intake, without increasing the risk of metabolic acidosis, hypercholesterolemia, or hypertriglyceridemia.

In this paper, Novel method, Particle Swarm Optimization (PSO) algorithm, based technique is prop... more In this paper, Novel method, Particle Swarm Optimization (PSO) algorithm, based technique is proposed to estimate and analyze the steady state performance of self-excited induction generator (SEIG). In this novel method the tedious job of deriving the complex coefficients of a polynomial equation and solving it, as in previous methods, is not required. By comparing the simulation results obtained by the proposed method with those obtained by the well known mathematical methods, a good agreement between these results is obtained. The comparison validates the effectiveness of the proposed technique.

Asian journal of agriculture and rural development, 2012

The study assessed gender participation and decision making role in economic activities using dat... more The study assessed gender participation and decision making role in economic activities using data collected from 120 respondents. The results revealed that female participation was frequent in crop post-harvest activities and poultry management while male participation was frequent in crop pre-harvest operations only. Female respondents participated occasionally in home gardening, goat rearing, hair dressing and food processing. Educational level, years of experience, personal income and credit obtained significantly influenced the level of gender participation in economic activities. The Males always made decisions on selection of crop variety, spending money, saving money, buying of necessities, and children‟s education, while females always made decision on types of food for home consumption only. Age and income of respondents were the significant factors that influenced the level of gender involvement in decision making. Provision of credit facilities, sensitization on the impo...

Intellectual Discourse, 2017

The belief in the expected redeemer or the Mahdī is a well-known concept in the history of Islam.... more The belief in the expected redeemer or the Mahdī is a well-known concept in the history of Islam. However, the notion has been opened to several interpretations and misinterpretations from various Islamic sects, each asserting that its own version of the Mahdiyyah is authentic and valid. As a result, several Islamic movements were orchestrated under the banner of the Mahdiyyah; prominent among them in Africa are those of Muhammad Ibn Tumart (1080-1130), the patron of the Muwaḥḥidūn State in north Africa, Muḥammad AImad ibn ʿAbdullāh (1844-1885), the architect of the Mahdist State in the Sudan (1881-1898) and Sheikh ʿUsmān Dan Fodio (1754-1817), the founder of the Sokoto Caliphate. This article explores the authenticity of the notion of the Mahdiyyah in Islam, which constitutes the basis for the main discourse of the study, namely, the status of the Mahdiyyah as conceived by Sheikh Usman Dan Fodio, and the resultant impact of the Sheikh’s Mahdiyyah on the Sudanese Mahdiyyah.

Journal of applied microbiology, Jan 26, 2018

To screen the newly recorded alga Grateloupia doryphora in the Egyptian Mediterranean Sea for ant... more To screen the newly recorded alga Grateloupia doryphora in the Egyptian Mediterranean Sea for antimicrobial activity. Algal samples were collected from the Eastern Harbor, Alexandria, Egypt during summer (2016 and 2017). The dry and fresh methanolic, ethanolic and ethyl acetate algal extracts were tested against Bacillus subtilis, Enterococcus faecalis, and Staphylococcus aureus as gram-positive bacteria, Escherichia coli, Pseudomonas aeruginosa as gram-negative bacteria and one yeast strain Candida albicans. A three way analysis of variance (ANOVA) showed significant differences based on the algal form, type of solvents and microbial species. The fresh methanolic and ethyl acetate extracts had equal effects on the tested pathogens with means of 14.44 and 15.16, respectively. However, the fresh algal extract was more effective on all the tested organisms than the dried material, except for ethyl acetate and ethanol extract on B. subtilis (31 and 23 mm), respectively. In fact, P. aer...

Tropical and Subtropical Agroecosystems, Dec 26, 2012

international conference on control engineering and communication technology, Dec 7, 2013

This paper presents fuzzy controller for maximum power point tracking (MPPT) for photovoltaic sys... more This paper presents fuzzy controller for maximum power point tracking (MPPT) for photovoltaic system. The paper investigates the efficiency of direct coupling of dc pumping system with the photovoltaic and then when using the MPPT. The paper presents modeling and analysis for dc-dc boost converter. The pulse width modulation (PWM) of the considered converter is determined by the fuzzy controller output depending on the nature of the load and source. The insolation levels variation has been taken into account. The fizzy controller uses the error and change of error to determine the maximum power point at each insolation level. Finally comparison between fuzzy logic controller and direct connection has been carried out which has shown that, the effectiveness of fuzzy controller to draw much power and presents fast system response against change in working conditions is much better than direct coupling method.

Geologische Rundschau, 1981

A sequence of events which has been recognized in the two basement regions of Somalia is outlined... more A sequence of events which has been recognized in the two basement regions of Somalia is outlined on the basis of new field and petrographic data and pre-existing published and unpublished reports. The evolution of the Somalian basement took place during the Pan-African event. However, much detailed work is necessary before the history of the basement can be integrated into the more detailed Pan-African picture recognized in the neighbouring regions. Zusammenfassung Eine Folge von Ereignissen, die sich in den zwei Basement-Regionen Somalias erkennen lieBen, wird auf der Basis neuer Geliinde-und petrographischer Daten und friiherei publizierter und nicht publizierter Berichte umrissen. Das Basement von Somalia entwickelte sich wiihrend des Panafrikanischen Ereignisses. Viel Detailarbeit ist jedoch noch zu leisten, bis die Geschichte des Basements in das detailliertere Bild Panafrikas, wie es aus den Nachbarregionen gewonnen wurde, integriert werden kann. R6sum~ Dans les deux r~gions de la Somalie ou le socle affleure, on a reconnu une succession d'6v~nements sur la base de nouvelles donn6es g6ologiques et p~trographiques et de travaux pr6-existants, publi6s et non publi~s. L'~volution du socle de la Somalie se d6roula pendant l'~v~nement Pan-Afrieain. Toutefois, beaucoup de travail doit ~tre encore fait avant que rhistoire du socle somalien puisse 8tre int6gr~e dans un cadre Pan-Afrieain plus d&aill6, tel qu'on le eonnait dans les r~gions voisines. KpaTKoe co~ep~I~RHHe Ha 0CHOBaHHH HOBBIX ~aHHIaIX, n0JIyqeHHblX IIpH n0JIeBB~X paSoTax H neTpo-rpa~HqecKHx HCCJIe,~OBaHHYIX, a TaK~Ke H3 npe;~HHX onySJ~HKOBaHH~IX H e~4e HeonyS~KOBaHnLIX MaTepna~oB yCTaHOBH~H, ~TO OCHOBaHHe CoMa~H~ BO3H~K~0 B nepHo~ oSpa3oBanHa YIaHadppH~aHcK0f~ n~aT~opM~L O~HaKo 7~a oKonqaTe~-Horo ey~eHHa o6 HCTOpHH 05pa3oBaHH~ 0CHOBaHH~ CoMa~HH Ha l~aHadpp~-KaHCKOffI nJzaT~bopMe Hy~HI, I ~aJIbHef~He Hccne~[oBaHH~ B coce~HHX pa.~oHax. Basement rocks outcrop in two main areas: 1) the Bur area in Southern Somalia, and 2) the coastal ranges in Northern Somalia (Fig. 1). A minor outcrop of crystalline rocks occurs in the Nogal valley (central-northern Somalia) and the very poor data presently available indicate that they consist of syenites.

AATCC Journal of Research, 2014

ABSTRACT A Ag-nanoparticle (Ag-NP) dispersion was successfully synthesized using a glucose/Ag-nit... more ABSTRACT A Ag-nanoparticle (Ag-NP) dispersion was successfully synthesized using a glucose/Ag-nitrate/polyvinyl pyrrolidone (PVP)/ sodium hydroxide reduction formulation. The resultant Ag-NP dispersion was successfully used alone and in combination with Disperse Orange 31 or Basic Blue 9 dyes to impart antibacterial properties against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria to polyester and polyacrylonitrile fabrics respectively using microwave treatment. An increase in Ag-NP dispersion concentration by 50% and prolonged microwave irradiation by two minutes significantly improved the antibacterial performance. The EDX spectrum of the Ag-NP loaded substrates confirmed the presence of elemental Ag (Ag0) on the fabrics’ surface. Addition of selected disperse or basic dye to the Ag-NP treatment bath produced disperse or basic dyeings with darker depth of shades and remarkable antibacterial functionality.

Research Journal of Microbiology, 2009

Applied Mechanics and Materials, 2014

Ground has been proven that it is able to supply cooling and heating resulting in significant red... more Ground has been proven that it is able to supply cooling and heating resulting in significant reduction of electricity consumption. This paper discusses potential of ground towards implementation of ground thermal storage by using ground heat exchanger (GHE) to supply passive cooling for any application. Analysis has been conducted based on empirical equation from conduction heat transfer for depth up to 6 m and thermal diffusivity from 0.04 to 0.1 m2/day. The main input parameters were obtained from local weather station for three consecutive years. The results showed that significant reduction of temperature occur at depth below than 2.0 m in which cooling can be supplied constantly throughout the year. Temperature amplitude also gets attenuated relatively with depth in which amplitude less than 1°C occur at depth more than 4 m for thermal diffusivity 0.04 m2/day. In addition, thermal diffusivity plays important role in determining ground temperature variation. It has been obtaine...

Pediatrics international : official journal of the Japan Pediatric Society, 2014

Thrombotic thrombocytopenic purpura (TTP) is a rare but life-threatening condition characterized ... more Thrombotic thrombocytopenic purpura (TTP) is a rare but life-threatening condition characterized by thrombotic microangiopathy. The standard treatment for TTP is plasmapheresis. For refractory or relapsing cases, various immunosuppressive agents have been tried, and among them rituximab has shown promising results. TTP is rarer in the pediatric age group and the use of rituximab in children with TTP is limited. Reported herein is the successful treatment of relapsing autoimmune TTP with rituximab in a 12-year-old girl.

Applied Mechanics and Materials, 2014

Malaysia has an abundance of renewable energy resources. However, the implementation proved to be... more Malaysia has an abundance of renewable energy resources. However, the implementation proved to be difficult, as many factors have to be considered, mainly economical factor. Furthermore, currently there is no known framework to establish the feasibility study of renewable energy technology implementation. This paper serves as an initial study on the application of fit-viability framework for the implementation of RE technology, focussing in Malaysia. A simple case study has been performed based on the Feed-in Tariff mechanism, an the fit-viability framework proved to be useful in RE technology consideration.

Chemical Engineering and Science, 2014

Syrian petroleum coke, produced by a delayed coking unit, is characterized by a high percentage o... more Syrian petroleum coke, produced by a delayed coking unit, is characterized by a high percentage of fines which tends to reduce its commercial value. Blending coke fines using appropriate binders, such as bitumen and polyacrylic acid, can lead, however, to an improved coke that is similar in structure, appearance and other properties to better-quality coke lumps. In this work, samples of Syrian coke fines were blended with Polyacrylic acid or bitumen and thermally treated at high temperatures and increased residence time in an inert atmosphere of nitrogen at atmospheric pressure. This treatment led to a general improvement of the petcoke qualities. The rate of desulphurization obtained as a result of the thermal treatment was 88% for most coke fines. A small overall reduction in the calorific value of the treated coke was also observed, but this was less than 8% in general.

Journal of Agricultural Science, 2010

This study evaluated the economic empowerment potentials of groundnut processing by women in rura... more This study evaluated the economic empowerment potentials of groundnut processing by women in rural areas of North central Nigeria state using a sample of 100 women processors randomly selected from the study area. Data analysis was done using Descriptive statistics, Net Farm Income Model and Data Envelopment Analysis (D.E.A). An average net returns of N10, 586.6 was obtainable within a processing cycle. The average pure technical and scale efficiency scores were 80 and 83 percent respectively. The major constraints confronting the processing of groundnut include inadequate capital for expansion and lack of processing machines. A significant opportunity exists for empowering rural women through groundnut processing.

Journal of Agricultural Science, 2010

The outbreak of Avian Influenza in Nigeria has led to job losses, health problems, reduction in e... more The outbreak of Avian Influenza in Nigeria has led to job losses, health problems, reduction in expected income of poultry farmers and a decrease in the demand for poultry products. This study was designed to determine the monetary value of stock lost, identify the determinants of the future employment decisions and the constraints faced by poultry farmers in the Federal Capital Territory of Nigeria. Data for the study was collected from 40 poultry farmers who have suffered losses due to the outbreak of the disease. The total monetary value of the stock lost in the study area as at 2007 was N142, 741, 000. 45% of the respondents have abandoned poultry production while 32.5% have reduced the size of their poultry business. Furthermore, only 22.5% have restarted their poultry business without reducing the quantity of the initial stock before the outbreak of the disease. The determinants of the decision to abandon were; amount of compensation received, educational level of the poultry farmer and total number of stock lost. The factors influencing the decision to reduce the scale of operation were; level of education of the farmer, years of experience in poultry production and the amount of compensation received from government. The post Avian Influenza outbreak constraints faced by the farmers were; inadequate compensation, low patronage by customers and low level of accessibility to agricultural credit institutions.

The Muslim World, 2007

believes in the modernity project, an enlightened stage in a teleological history that is stymied... more believes in the modernity project, an enlightened stage in a teleological history that is stymied by obscurantists and those who seek refuge in selfsufficient orthodoxy and retreat into petrified values. This brief discussion is exceptionally well-phrased and carries polemic value for believers in pluralism and inclusiveness. Goytisolo's parting reflections are a plea to support a dialogue of civilizations over a clash of civilizations. He compares these efforts to the 15 th century Juan de Segovia, a Spanish bishop who ordered that the Qur 'a n be translated in order to further mutual understanding, and recommended a three-stage solution: a truce of armed hostilities, steps to improve diplomatic, commercial, and cultural ties, and as trust grew, a religious authorities' conference to determine the common ground between the warring sides. This remarkably progressive and novel idea in its times-a classic effort at problem-solving and conflict resolution-never gained serious traction, as he was relegated to isolation in a Swiss monastery. Goytisolo and his intellectual fellow-travelers could be latter-day de Segovias who, if only listened to, might change history's course with an ecumenical vision. This readable work, valuable for general readers, and with food for thought for specialists, may end up with de Segovia's fate. Nevertheless, its call to engagement is noble and necessary amid the escalating hostilities in our era.

Measurement Science and Technology, 2011

Tropospheric delay is one of the dominant global positioning system (GPS) errors, which degrades ... more Tropospheric delay is one of the dominant global positioning system (GPS) errors, which degrades the positioning accuracy. Recent development in tropospheric modeling relies on implementation of more accurate numerical weather prediction (NWP) models. In North America one of the NWP-based tropospheric correction models is the NOAA Tropospheric Signal Delay Model (NOAATrop), which was developed by the US National Oceanic and

Journal of Perinatology, 2004

This study aimed to compare nitrogen balance and biochemical tolerance of early aggressive versus... more This study aimed to compare nitrogen balance and biochemical tolerance of early aggressive versus late total parenteral nutrition in very-low-birthweight (VLBW) infants over the first week of life. STUDY DESIGN: In all, 32 ventilator-dependent preterm infants were prospectively randomized into two groups. The Early Total Parenteral Nutrition (ETPN) group received 3.5 g/kilo-day amino acids (AA), and 3 g/kilo-day of 20% Intralipid (IL), starting within 1 hour after birth. The Late Total Parenteral Nutrition group (LTPN), started on a solution containing glucose during the first 48 hours of life, followed by 2 g/kilo-day of AA and 0.5 g/kilo-day of IL. For the LTPN group AA and IL were each increased by 0.5 g/kilo-day to a maximum of 3.5 and 3 g/kilo-day, respectively. RESULTS: Nitrogen retention was significantly greater in all infants in the ETPN group throughout the 7-day study period. All infants in the LTPN group were in negative nitrogen balance during the first 48 hours of life, while those in the ETPN group were in positive nitrogen balance throughout. The mean (±SD) nitrogen retention in the ETPN was 384.5 mg/kilo-day (±20.2), compared to 203.4 mg/kilo-day (±20.9) in the LTPN group (p <0.001). In each of the first 5 days of life, energy intake was significantly greater in the ETPN group compared to the LTPN group (p <0.001). Mean fluid intake during the study period was similar between, the ETPN and the LTPN groups (162 and 165 cm 3 /kilo-day, respectively). The mean weight gain was similar in the ETPN and LTPN groups. Plasma levels of cholesterol, triglycerides, bicarbonate, blood urea nitrogen, creatinine, and pH were similar in both groups during the study period. Mean (±SD) serum glucose in the LTPN group was higher, but remained in normal range (101.1±5.2 and 80.8±5.4 mg/kilo-day, respectively). The mean peak serum bilirubin was significantly higher in the ETPN group, compared to The LTPN group (7.7 and 6.2 mg/dl). CONCLUSION: This study shows that aggressive intake of AA and IL can be tolerated immediately after birth by VLBW infants. Also, ETPN significantly increased positive nitrogen balance and caloric intake, without increasing the risk of metabolic acidosis, hypercholesterolemia, or hypertriglyceridemia.