Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2761

SRE Articles

Designing controller in order to control micro-turbine in island mode using EP algorithm

November 2013

The ever increasing energy demand, along with the necessity of cost reduction and higher reliability requirements, are driving the modern power systems towards Distributed Generation (DG) as an alternative to the expansion of the current energy distribution systems. This paper is aimed to introduce the new controller in order to control of output power of one of the most important types of distributed generation namely...

Author(s): Mohsen Mohammadi and Noradin Ghadimi

Evaluation of various sources of organic manures on nitrogen use efficiency in rice-rice cropping system

November 2013

Investigations were carried out to study the effect of organic farming with various sources of organic manures and their combinations on nitrogen use efficiency parameters of ADT 36 rice (Oryza sativa L.). The experiments were laid out in randomized block design (RBD) with fourteen treatments, comprising twelve treatment combinations of organic manures, one treatment with recommended dose of chemical fertilizer and the...

Author(s): S. Krishnakumar, R. Muthukrishnan, V. Rajendran and R.K. Kaleeswari

Optimal Lead-lag controller designing for voltage control of fuel cell

November 2013

This paper proposes a Lead-Lag optimal controller in order to control of one of the most important types of fuel cell, namely proton exchange membrane fuel cell (PEMFC). At first, the introducing and implementation of the PEMFC is present and next, during system load variations the proposed controller is designed. The controller should be designed against the load variations for keeping in a fixed value of fuel cell...

Author(s): Ramtin Rasouli Nezhad and Hamdi Abdi

Evaluation of the corrosion resistance of SAF 2205 steel ageing at low temperatures during 3000 and 5000 hours

November 2013

The corrosion properties of duplex stainless steel type SAF 2205 after long-term ageing at 300°C and 400°C were investigated. However, these steels show a degradation of their properties as submitted by long time, in low temperatures about 280 to 520°C. This work describes this behavior by analysis of the resistance to general corrosion of the SAF 2205 steel ageing in the temperatures 300°C and...

Author(s): João Roberto Sartori Moreno Paulo Cezar Tulio

Functional variable method and its applications for finding exact solutions of nonlinear PDEs in mathematical physics

November 2013

The functional variable method is a powerful mathematical tool for obtaining exact solutions of nonlinear evolution equations in mathematical physics. In this paper, the functional variable method is used to establish exact solutions of the (2+1)-dimensional Kadomtsov-Petviashivilli-Benjamin-Bona-Mahony (KP-BBM) equation, the (2+1)-dimensional Konopelchenko-Dubrovsky equation, the (3+1)-dimensional Burgers equation and...

Author(s): Elsayed M. E. Zayed, Yaser A. Amer and Ahmed H. Arnous

Integrated nutrient management and LCC based nitrogen management on soil fertility and yield of rice (Oryza Sativa L.)

November 2013

The experiment was conducted at lowland series of wet lands, International Rice Research Institute (IRRI) Farm, Los Banos, Laguna, Philippines. The rice variety PSBRc 82 was raised during wet season (June – October), and the experiment was laid out in randomized block design with four replications. There were eleven treatments viz., control, recommended NPK fertilizer, -N, -P, -K, LCC 3, LCC 4, LCC 5, 100% N as...

Author(s): Srinivasagam Krishnakumar and Stephan Haefele

Analyzing the woodturning process using Taguchi methodology for dynamic systems

November 2013

This paper presents a study of the woodturning performance and efficiency using the Taguchi methodology for dynamic systems. According to this methodology, the woodturning process was characterized by two generic functions: for the first one, the specific cutting energy is related linearly to the cutting power, in the second with the amount of cut. These parameters were measured depending on two control factors namely...

Author(s): BENOTMANE B. and ZIROUK S.

Active islanding detection technique using rate of change of negative sequence of voltage injection

November 2013

Recently, the penetration of Distributed Generation (DG) at medium and low voltages in utility networks is increasing in developed countries and takes special place for them worldwide. Due to the DGs advantages, including use of Renewable Energy which do not pollute environment and has endless nature, the application of DGs can potentially reduce the need for traditional system expansion, controlling a potentially huge...

Author(s): Noradin Ghadimi

Efficacy of Panchagavya on seed invigoration of biofuel crops

November 2013

Studies on organic seed fortification with Jatropha curcas and Pongamia pinnata using ‘Panchagavya ’at one, two, three, four and five per cent concentrations with the three different soaking durations revealed that Panchagavya at 2 and 5% with the soaking duration of 16 and 8 h were superior than the control and other concentrations in terms of germination and seedling vigour for Jatropha curcas and Pongamia...

Author(s): P. Srimathi, N. Mariappan, L. Sundaramoorthy and M. Paramathma

High quality model for compression of medical images in telemedicine

November 2013

Generally lossless compression should be used for ROI (Region of Interest) and lossy compression should be used for ROB (Region of Background) with a lower quality. In existing system, Region of Interest (ROI) is selected manually, but ROI is selected automatically in the proposed method, pre-processing is done to improve the visual quality of the image. Segmentation is carried out accurately and efficiently using...

Author(s): M. Moorthi and R. Amutha

Slope of siltation of Dam No.7 in the Vidovačka Reka

November 2013

Slope of siltation is the slope of the upper surface of the deposited material, which can be considered as the equilibrium bed slope in the specific conditions of the torrent channels with the constructed dams. The formation of siltation is a complex process which is influenced by many factors, most significant being: natural bed slope, competent velocity, depth of flow, density of torrential water and sediment...

Author(s): Bilibajkić, S. and Bilibajkić, R.

Association and inter-relationship among yield and yield contributing characters and screening against Cercospora leaf spot in mung bean (Vigna radiata L.)

November 2013

Thirty-five genotypes of Mung bean (Vigna radiata L.) along with check Shalimar Mungbean-1 were evaluated to elicit information on association and interrelationship for yield and its component traits. Seed yield plant-1 showed positive significant association with number of clusters plant-1, number of primary branches plant-1, number of pods plant-1, number of seeds pod-1, pod length, and 100-Seed weight ,and ...

Author(s): Aijaz Ahmad, S. M. Razvi, M. A. Rather, Gulzafar, M. A. Dar and S. A. Ganie

Variograms and regression methods of their creation

November 2013

The role of interpolation methods in creation of the Digital elevation models (DEM) is an actual problem from theoretical and application aspect. Geo-statistical interpolation methods respect autocorrelation of input data, which is expressed by variogram function. The aim of this paper is to describe creation of variogram model functions and estimation of their parameters and also implementation of variogram to software...

Author(s): Margita Vajsáblová

Radio-sensitivity of selected cowpea (Vigna unguiculata) genotypes to varying gamma irradiation doses

October 2013

An appropriate dose of radiation should be established on target genotypes before large scale mutagenesis undertaken. The objective of this study was to determine an ideal dose of gamma radiation to induce genetic variation in selected cowpea (Vigna unguiculata) genotypes. Seeds of three Namibian released cowpea genotypes were gamma irradiated using seven dozes at the International Atomic Energy Agency, Austria....

Author(s): L. Horn, and H. Shimelis

Land use land cover change detection of Patani micro-watershed of Madhya Pradesh using remote sensing data

October 2013

This study investigates Patani micro-watershed situated in Majhagawan block of Satna District (M.P.). The watershed characterization was carried out using RS and GIS techniques. The major aim of this study is to prepare land use land cover and their change detections. In this study IRS-P6 Sensor, LISS-III satellite images of the dates 19th October, 2008 and 5th January, 2008 were used to detect the seasonal (Kharif and...

Author(s): Pratibha Warwade, M. K. Hardaha, Surendra Kumar Chandniha and Dheeraj Kumar

The modified simple equation method and its applications to (2+1)-dimensional systems of nonlinear evolution equations

October 2013

The modified simple equation method is employed to find the exact traveling wave solutions involving parameters for nonlinear systems of evolution equations via the (2+1)-dimensional Konopelchneko-Dubrovsky equations and the (2+1)-dimensional Nizhnik-Novikov-Vesselov equations in two dimensions. When these parameters are taken to be special values, the solitary wave solutions are derived from the exact traveling wave...

Author(s): Elsayed, M. E. Zayed and Ahmed, H. Arnous

The law of universal attraction with momentum exchange between objects and microparticles

October 2013

The law of universal attraction has been used widely. However, how two objects attract each other is still a riddle. Hypotheses, such as gravitons, universal repulsion, sub-photon seas, etc., all have flaws, and do not deal with the basic reason why there is such a law. In this paper, suppose: (1) microparticles at a certain speed, moving like thermal motion of molecules, are distributed in space; (2) the objects are...

Author(s): Zifeng Li

Comments on “Frontier experiments: Tough science- Five experiments as hard as finding the Higgs”

October 2013

The five frontier experiments published in Nature are commented item by item: spotting distant signs of life, seeing through the molecular mirror, looking for extra dimensions, catching a gravity wave, redefining the kilogram. It is concluded that the first two experiments are great ideals that are impossible to realize in recent years, the last three are false theories pulling physics into morass. Key words:...

Author(s): Zifeng Li

Voice onset/offset based local features (VOOLF) for Arabic Speaker recognition

October 2013

Local features for any pattern recognition system are based on the information extracted locally. In this paper, a local feature extraction technique is developed, which captures the formant transition and voice onset/off set of a speaker. We named this technique as voice onset/offset local features (VOOLF). These features are extracted in the time spectrum domain by taking the moving average on the diagonal...

Author(s): Awais Mahmood and Mansour Alsulaiman

Patterns of vegetation diversity of grasslands and pastures – Crvanj Mt. (Herzegovina, Western Balkan)

October 2013

  This paper represents study results of patterns of structure and dynamics of grasslands and pastures communities on vertical profile of Crvanj Mt. in Herzegovina (W. Balkan. Investigated area is situated between co-ordinates N 43° and 43°30' and E 18° and 18°30'. From the orography point of view, the area is very heterogenous. It encompases numerous peaks, valleys, passages and diverse...

Author(s): Sulejman REDŽIĆ, Sabina TRAKIĆ and Senka BARUDANOVIĆ

Elastic stability of functionally graded rectangular plates under mechanical and thermal loadings

October 2013

  In this paper, the buckling of a functionally graded plate is studied. The material properties of the plate are assumed to be graded continuously in the direction of thickness. The variation of the material properties follows a simple power-law distribution in terms of the volume fractions of constituents. The plates are subjected to be under three types of mechanical loadings, namely; uniaxial compression...

Author(s): M. Bouazza, and E. A. Adda-Bedia

A meridic diet for laboratory rearing of Red Palm Weevil, Rhynchophorus ferrugineus (Coleoptera: Curculionidae)

October 2013

  The red palm weevil (RPW)  Rhynchophorus ferruginous (Olivier) was fully developed and reared  on a meridic diet consisting of agar, distilled water, commercial yeast as well as laboratory produced amino and fatty acid rich brewer’s yeast (Saccharomyces cerevisiae), wheat meal, corn flour, benzoic acid, ascorbic acid, sorbic acid, vitamin mix and tetracycline hydrochloride. A group of weevils...

Author(s): H.A.F. El-Shafie, J.R. Faleiro, M.M. Abo-El-Saad and S.M. Aleid

Experimental evaluation of Echinops echinatus as an effective hepatoprotective

October 2013

  Aerial parts of Echinops echinatus (Family: Asteraceae) were subjected to in vivo hepatoprotective study in order to validate its traditional use in hepatobiliary disorders, by native people of Cholistan Desert, Pakistan. Hepatoprotective effects of pre-treatment with aerial parts (ethanolic extract) of E. echinatus (EE), (500 and 750 mg/kg/day, p.o., for 7 days) against CCl4 (0.75 ml/kg., s/c.) intoxicated...

Author(s): Sofia Eram, Mahmood Ahmad and Shafia Arshad

Analytical hierarchy process model for severity of risk factors associated with type 2 diabetes

October 2013

  Type 2 diabetes has been an increasing public health problem with an estimated forecast of 300 million around the world by the year 2025. It places a serious constraint on individual’s activities caused by hyperglycemia resulting from defects in insulin secretion, insulin action or both. Although extensive epidemiological researches have shown an association between various risk factors and the...

Author(s): B. Y. Baha, G. M. Wajiga, N. V. Blamah and A. O. Adewumi

Modeling the performance of upflow anaerobic filter (UAF) reactors treating paper-mill wastewater using neural networks

October 2013

  This study investigated the predictive ability of neural networks in the estimation of methane yield (MY) and effluent substrate (Se as mg/L COD) produced by two anaerobic filters, one mesophilic (35°C) and one thermophilic (55°C), which were operated to treat paper-mill wastewater at varying organic loadings. An artificial neural network (ANN) architecture was optimized to obtain a three-layer neural...

Author(s): Turan Yilmaz

Status of watersheds in southeast Nigeria

October 2013

  The study assessed the status of watersheds in southeast, Nigeria. Participant observation, key informant interview and interview of heads of households were used for data collection. A total sample size of 412 respondents was involved in the study. The results of the study revealed a general decrease in various features in the watersheds. For instance, 99.5% of the respondents were of the opinion that forest...

Author(s): Enwelu, Innocent Achonam and Igbokwe, Edwin M.

Study on the health-related quality of life after surgical treatment for lumbar stenosis

October 2013

  Lumbar stenosis (LS) affected middle-aged people and may cause severe symptoms and functional impairment at lower limbs. We conducted a study in China to assess the HRQoL in patients operated on for LS, and investigate the possible determinants of HRQoL. From June 2008 to June 2010, 60 patients have been surgically treated for lunbar stenosis in our Hospital. The medical outcomes study short Form 36 (SF-36)...

Author(s): Yu FU, Zhenming HU, Hongjun HUO, Xuejun YANG, Yulong XIAO, Wenhua XING, Yan ZHAO and Feng LI

Prognostic influence of fatty infiltration on rotator cuff repair

October 2013

  This study aimed to investigate the influence of preoperative supraspinatus and infraspinatus fatty infiltration on postoperative shoulder function recovery and analyze the relationship between preoperative supraspinatus and infraspinatus fatty infiltration and the retear rate after isolated supraspinatus full-thickness tear repair. Retrospective cohort study of 56 cases was carried out between 2005 and 2007...

Author(s): Shiqiu Chen, Shiyi Chen, Jiwu Chen, Yinghui Hua and Hongyun Li

Development of camera and GSM interfacing system for home security surveillance

October 2013

  This project is developed with aims to improve home security systems available in current market. This project claims to produce a prototype camera and global system for mobile communication (GSM) interfacing system for home security surveillance. This system uses two sensors, namely ultrasonic and passive infrared receiver (PIR). The ultrasonic sensor is used to detect movement of objects and PIR...

Author(s): Mohammad Syuhaimi Ab-Rahman, , Aminatul Hidayah Asmir and Kasmiran Jumari,

Development of genetic algorithm toolbox using MATLAB in cutting tool path optimization

October 2013

  In this study, optimization of tool path is presented through simulation material removal using Finite Element Analysis (FEA) and control via Genetic Algorithm (GA). The computer code for GA is developed and is specifically designed using MATLAB programming. The developed GA toolbox was written in m-files script together with several built-in functions in order to import the text file generated by FEA...

Author(s): Nurhaniza Mohamad , M .K. A. Ariffin, Aidy Ali, F. Mustapha and I. M. Salleh

Research on truffles: Scientific journals analysis

October 2013

  This analysis aims to provide an update in the recent truffle research through the chosen articles published in scientific journals. The journals were chosen based upon journal profiles and scientific prestige. Authors have considered publications from: Applied and Environmental Microbiology, Biochemical Journal, BMC Bioinformatics, BMC Genomics, Current Genetics, Environmental Microbiology, Eukaryotic Cell,...

Author(s): Małgorzata Gajos and Dorota Hilszczańska

Environmental challenges of Millennium Development Goals (MDGs) 4, 5 and 6: The roles of midwives in Nigeria

October 2013

    With less than five years to the 2015 target set by the United Nations for the achievement of the Millennium Development Goals (MDGs), MDGs 4, 5 and 6 are still far from being achieved. Nigeria has the second highest maternal mortality and eighteenth highest child mortality in the world. Efforts to combat HIV and other diseases have recorded only marginal success. This paper identified...

Author(s): Akin-Otiko, Bridget Omowumi

A hybrid approach for text categorization by using x2 statistic, principal component analysis and particle swarm optimization

October 2013

Today, the number of text documents in digital form is progressively increasing and text categorization becomes the key technology of dealing with organizing text data. A major problem of text categorization is a huge-scale number of features. Most of those are useless, irrelevant or redundant for text categorization. Therefore, these features can decrease the classification performance. In order to eliminate this...

Author(s): Harun UÄŸuz    

Determination of the effects of bioethanol-diesel fuel blends containing Beraid ED10 additive on engine performance and emissions in a diesel engine with a pump injection system

October 2013

  In the present study, the effects of bioethanol-diesel fuel- Beraid ED10 additive blends on engine performance and emissions were investigated on a four-stroke, three-cylinder, water-cooled, turbocharged diesel engine with a pump injection fuel system. Low-sulphur Eurodiesel fuel, BE5 (5% bioethanol – 93% euro diesel – 2% Beraid ED10), BE10 and BE15 fuels were used in the experiments. The changes...

Author(s):   Hasan AYDOGAN and Mustafa ACAROGLU    

Efficacy of imidacloprid (Confidor 200SL) and improved cultural practices in the control of the green date palm pit scale insect (Asterolecanium phoenicis Rao.) (Palmapsis phoenicis) (Homoptera: Asterolecaniidae) in Northern Sudan

October 2013

  Experiments were undertaken in Elgaba scheme for two seasons (1999/2000 and 2000/2001) to evaluate the efficacy of imidacloprid (as Confidor 200SL) as part of a technical cultural practices package (earthing, pruning and regular irrigation) in the control of the date palm green pit scale insect Asterolecanium phoenicis (Rao). Four doses of Confidor 200SL (15, 20, 25 and 35 ml/palm) were compared...

Author(s): Mahdi Abdelrahman Ahmed, Azhari O. Abdelbagi, Hamadttu A. F. Elshafie, E. A. Fageer and Ihsan A. Abass

Constraint models for the bandwidth minimization problem

October 2013

  The satisfiability problem (SAT) is a well studied problem in logic which searches for a truth assignment of a set of Boolean variables that evaluates a specific formula to true. The bandwidth minimization problem for graphs (BMPG) is a well studied problem in graphs and requires finding the labels of the nodes of a graph such that the maximum absolute difference among neighbors is minimized. This paper...

Author(s): Nelson Rangel-Valdez and Jose Torres-Jimenez

Barley grain yield path analysis (Hordeum disticum L.) in dry regions of Iran

October 2013

  In order to determine the correlation and relationship between the grain yield and other important traits in 24 genotypes of barley, an experiment was conducted in Dry Land Research Station of Shirvan. The experimental design was a randomized complete block with three replications. The evaluated traits were grain yield, days to emergence, days to heading, days to maturity, plant height, plant coverage...

Author(s): Seyed Morteza Azimzadeh and Seyed Javad Azimzadeh

Investigation of freeway traffic control strategies’ performance

October 2013

  This paper focus on evaluation of impacts of traffic control strategies on traffic congestion relief. The traffic simulation network is modeled in a traffic microsimulation environment and the calibration with the real world data. As for traffic control strategies, fixed-time ramp metering, speed limit control and integrated control are tested and performances are compared with the actual condition along the...

Author(s): Kesten A. Sercan, Ergün Murat and Yai Tetsuo    

Dynamics of interstitial calcium in rat myocardial ischemia reperfusion injury in vivo

October 2013

  Intracellular calcium ([Ca++]ic) overload is the key factor for myocardial ischemia reperfusion injury(IR), however there was no report for interstitial Ca++ concentration ([Ca++]ex) dynamics. This research aims to plot the [Ca++]ex dynamics in rat myocardial IR in vivo. A microdialysis system was composed and the time delay of the system, recovery time, was introduced and tested with a fluids switching...

Author(s): Huang Shaohong, Li Yun, Chen Huiguo, Wu Zhongkai and Rong Jian,    

In vitro evaluation of plant extracts against Alternaria brassicae (Berk.) Sacc. causing leaf spot of mustard and Fusarium oxysporum f. sp. lycopersici causing wilt of tomato

October 2013

Extracts of five plants viz. Azadirachta indica, Lantana camara, Ocimum sanctum, Eucalyptus globulus and Calotropis gigantea were evaluated in vitro by poison food technique (PFT) @ 3, 5, 7 and 9% concentrations against Alternaria brassicae andFusarium oxysporum f. sp. lycopersici causing blight of mustard and wilt of tomato respectively. In vitro study...

Author(s): S. A. Ganie, V. R. Pant, M. Y. Ghani, Ashiq Hussain Lone, Qaisar Anjumand S. M. Razvi    

Reconditioning effect of oligodendrocyte-like cell transplantation in acute spinal cord injury in rats

October 2013

To observe the reconditioning effect of oligodendrocyte-like cell transplantation in acute spinal cord injury in rats, bone marrow mesenchymal stem cells were differentiated into oligodendrocyte-like cells induced by cytokines including insulin-like growth factor-1(IGF-1). Rats with acute spinal cord injury were treated with the oligodendrocyte-like cells for 8 weeks by local injection. The therapeutic effect was...

Author(s): Yongtao Xu, Anmin Chen, Feng Li and Hougeng Lu

Pediculosis among primary school children in Calabar, Nigeria and implications for control

October 2013

This study was undertaken to determine the prevalence of head lice among primary school children in a semi-urban area of Calabar, Cross River State, Nigeria. A total of 204 children aged 6 to 12 years from both genders had their hair and scalp examined by visual inspection for head lice. A questionnaire was used to assess children’s knowledge about the ectoparasite – Pediculus humanus capitis. The...

Author(s): Etim S. E., Ohioma M. E., Okon O. E. and Akpan P. A.

Human Resources Performance Analysis based on a Hybrid Method

October 2013

Improving human resources performance (HRP) is the most important task of the century. However, we have few measures or management interventions to make such improvement possible; although we cannot identify the pattern to be followed by human resources because systems and processes in an organization are often regarded as a kiss of death to encouraging creativity. For improving human resource performance, at first, HRP...

Author(s): Asadallah Najafi

Molecular-based marker for sex differentiation of jojoba in vivo and in vitro Iraqi cultivars using RAPD- PCR technique

October 2013

The objective of this study was to distinguish between males and females of jojoba (Simmondisia chinensis) using Random Amplified Polymorphic DNA (RAPD) markers in order to detect any DNA variation. A callus was produced from both male and female jojoba leaves, using MS medium with BA 0.5 and 2 to 4, D 2.5 mg/l respectively. Genomic DNA of jojoba plant was extracted using CTAB method. The concentration of DNA...

Author(s): Jameel R. Al-Obaidi, Bilal .K. Suliman and Nabeel .K. Al-Ani

APS-initiated graft copolymerization of N-Vinyl pyrollidone onto gelatin: Preparation, characterization, and optimization of grafting parameters

October 2013

In this work, large numbers of hydrophilic functional groups were introduced onto gelatin by grafting with N-vinyl pyrollidone monomer. The graft copolymerization reactions were carried out under nitrogen atmosphere using ammonium persulfate (APS) as an initiator. The graft copolymer was characterized by Fourier transform infrared spectra, thermo-gravimetric analysis and solubility test. The existence of...

Author(s): Mohammad Sadeghi, Esmat Mohammadinasab and Fatemeh Shafie

Effect of oxidative stress on viability and virulence of environmental Acinetobacter haemolyticus isolates

October 2013

The effect of oxidative stress exerted by 0.03% crystal violet, 0.3% bile salt, 4.0% NaCl and 8% ethanol on the survival and production of virulence factors amongAcinetobacter haemolyticus isolates obtained from wastewater and river water samples was investigated. Though generally there was insignificant lethal effect against all the isolates, crystal violet exerted the highest lethal effect...

Author(s): James Hamuel Doughari, Patrick Alois Ndakidemi, Izanne Susan Human and Spinney Benade

Botanical characteristics of chickpea genotypes (Cicer arietinum L.) under different plant densities in organic farming

October 2013

This study was performed in Nurdagi district of Gaziantep Province of Turkey in 2011 growing season. Inci and 55-C chickpea (Cicer arietinum L.) genotypes were sowed at 30, 40, 50 and 60 plant m-1 plant densities and the effects of sowing densities on plant botanical characteristics were investigated. In the research, plant height, first pod height, number of first branch, number of second branch and stem...

Author(s): Alihan COKKIZGIN

Hematological changes before and after hemodialysis

October 2013

Renal failure is a situation in which kidney fails to function adequately. There are two forms of renal failure: acute and chronic. End-Stage renal disease is the final stage of chronic renal failure where there is a progressive, irreversible deterioration in renal function which can be substituted by renal replacement therapy, haemodialysis (HD), peritoneal dialysis, or transplantation. The aim of this study was...

Author(s): Abdullah Khader Alghythan and Abbas H. Alsaeed

Effects of baffles geometry on sloshing dynamics of a viscous liquid tank

October 2013

Baffles are used effectively to reduce the sloshing response of liquid in the liquid storage containers. In this paper, a brief equivalent method is proposed to model the influence of different baffle geometrical effects on liquid sloshing. It has been showed that the natural frequencies and the dynamic response of the liquid in the container are drastically changed if the free liquid surface in a cylindrical container...

Author(s): Morteza Shahravi and Milad Azimi

Diurnal variation in stature in Nigerian children

October 2013

While total stature has been demonstrated to decrease throughout the day, whether a diurnal effect applies to Nigerian children has not been reported, the aim of this study was to investigate diurnal stature variation in school children in Makurdi, Nigeria. The stature of 625 children aged 9 to 16 years were measured twice (morning and afternoon) on the same day with a wall mounted stadiometer. The first measurements...

Author(s): Daniel T. Goon, Abel L. Toriola and Simon W. Akusu

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