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

Capacity enhancement of multicarrier code division multiple access (MCCDMA) using orthogonal complete complementary codes and adaptive constellations

March 2014

The multicarrier code division multiple access (MCCDMA) is a strong candidate for the future wireless mobile communication systems put forth by service quality and system capacity. In order to exploit the maximum possible channel diversity and desirable correlation properties, the modification of MCCDMA system is addressed here to pave the way to remove the multiple access interference (MAI) effect and to increase the...

Author(s): Senthilkumar, G. and Amutha, R. 

Comparative osteometric differences in humerus of bari Goat and Dumbi Sheep

March 2014

Morphological studies were conducted on the Humerus of 60 clinically healthy animals (30 Bari goat and 30 Dumbi sheep) of both sexes, slaughtered at Tandojam and Tando Allahyar abattoirs. For comparative study, animals were divided in three age groups viz., lambs/kids (6-9 months), yearlings (13-21 months) and adult (21-24 months). The estimated age was determined through dental formula, whereas, the body weight was...

Author(s): Lochi, Ghulam Murtaza, Shah, Muhammad Ghiasuddin, Kalhoro, Illahi Bux, Gandahi, Jameel Ahmed, Khan, Muhammad Shoaib, Haseeb, Abdul, Khushk, Sheeraz Mustafa, Oad, Ameet and  Ansari, Mansoor Ibrahim

Application of statistical techniques to evaluate the reliability of ultrasonic and rebound hammer measurements of compressive strength in the concrete of bridges

March 2014

In order to assess the uncertainties in the experimental measurements, the use of statistical error analysis is essential for a reliable technical diagnosis on structural safety in reinforced concrete of bridges. Two non-destructive techniques (ultrasound and rebound hammer) were performed, resulting in conflicting technical diagnostics when analyzed without the study of the variability of experimental errors. It was...

Author(s): Carvalho, C. H., Severo Junior, J. B., Macedo, M. C. S. S., Griza, S., de Andrade, C. E. C., dos Santos, A. A. , and Barreto, L. S.

A Novel SPICE compatible behavioral model for molecular electronics having hysteresis effects

March 2014

Although molecular electronics is in its infancy, there are many significant advances in understanding and implementing computational functions based on molecular electronic devices. In order to evaluate a molecular electronic circuit, a model is needed. In existing literature, only a few models have been introduced for molecular electronics, all of which do not support the hysteresis phenomenon. To the best of the...

Author(s): Bahrepour, Davoud  and Sharifi, Mohammad Javad

Experimental study of anaerobic digestion of dog waste

March 2014

Bioconversion of dog waste (dung) to energy as one of the ways for proper disposal of the waste was carried out through anaerobic digestion for biogas production. The 59-day experiment was performed within the slurry temperature range of 28 and 44°C using a 50 L metallic biodigester. Prior to charging the digesters, physico-chemical properties and microbial content of the waste were determined using standard...

Author(s): Okoroigwe, E. C., Ibeto, C. N. and Ezema, C. G.

Variational cartographic projections for the Slovak Republic territory

March 2014

Disadvantages of currently used KÅ™ovák`s projection in Slovak Republic such as large scale distortion became evident after dividing of Czechoslovakia. The new proposal of the cartographic projection for the Slovak Republic (Lambert`s conformal conic projection in normal position) was created in 2010. The aim of this paper is to define an optimal oblique position of map projections for the Slovak Republic...

Author(s): Vajsáblová, Margita  and Szatmári, Daniel 

Toxicity and repellent effects of some botanical insecticides on the egg-larval parasitoid Chelonus oculator Panzer (Hymenoptera: Braconidae)

March 2014

Chelonus oculator Panzer is an egg-larval parasitoid of the cotton leaf worm, Spodoptera littoralis (Boisd.) with a broad geographical area. Four botanical insecticides - azadirachtin (Neem Azal), pyrethrum (Spruzit Neu), capsaicin (Hotpepper wax) and d-Limonene (Orange guard) - were investigated regarding their side effects on C. oculator. Sub-lethal concentrations (LC25 and LC50) were determined for azadirachtin and...

Author(s): TUNCA, Hilal, KILINÇER, NeÅŸet and ÖZKAN, Cem

Development of a device adapted to perform the torch gas tungsten arc welding (GTAW) hardfacing using alloys in powder form

March 2014

This work was aimed at developing a device adapted to any gas tungsten arc welding (GTAW) torch, allows obtaining hard coatings by depositing alloys in powder form. For the purpose of verifying the feasibility of implementing this process, the results and parameters were compared with the plasma transferred arc (PTA) process. Due to good wear resistance was used as the substrate alloy SAE 1020 and alloy STELLITE 6...

Author(s): Moselli, Paulo Cezar,  de Oliveira, Marcelo Falcão and Moreno, João Roberto Sartori 

Regional sustainability assessment and its sensitivity analysis based on ecological footprint model: A case study of Xingguo County in China

March 2014

Based on the Ecological Footprint Model, a Sustainability Index is put forward to measure the degree of regional sustainable development. Using correlation and sensitivity analysis, this study explored the level of sustainable development in the Xingguo County of China from 1996 to 2005, and revealed the driving factors of human activities on sustainable development. The results indicate that the...

Author(s): Xie, Hualin, Liu, Qu , Wang, Peng and Liu, Zhifei,

Evaluation of management transfer of irrigation scheme in Düzce valley located in Western Black Sea Region of Turkey

February 2014

Management transfer of Düzce irrigation scheme was evaluated using appropriate performance indicators and the effects of farmers' opinions on water using and agricultural effectiveness. The results of the analysis indicated that the transfer process was not useful for farmers generally. Transfer management had no effect on sufficiency, equality, and irrigation time. However, maintenance of irrigation channels...

Author(s): ÖZMEN, Selçuk 

Effects of physiological status and seasonal variation on plasma mineral profile of sheep in Kashmir valley

February 2014

Evaluating mineral profile of sheep, belonging to different physiological states and in different seasons, is an important indicator of their nutritional and health status. This is important to prevent health disorders which lead to production and reproductive disturbances. A total of 167 blood samples were collected in four different seasons of the year from sheep having varied physiological demands in Shuhama Alusteng...

Author(s): Dar, A. A., Jadhav, R. K., Dimri, U., Khan, A. A., Khan, H. M. and Sharma, M. C.

Comparative performance analysis of irrigation schemes in Kastamonu area located in northern Turkey

February 2014

Performance analysis of six irrigation schemes in Kastamonu area located in northern Turkey were assessed using comparative performance indicators between the years 2008 and 2012. Performance indicators used for the analysis included relative water supply, financial performance as cost recovery ratio, maintenance expenditure to revenue ratio, operational cost per unit area, total cost per personnel employed on water...

Author(s): ÖZMEN, Selçuk 

A review on Oat (Avena sativa L.) as a dual-purpose crop

February 2014

The multifunctional uses of oats include forage, fodder, straw for bedding, hay, haylage, silage chaff, human food; most commonly, they are rolled or crushed into oatmeal, or ground into fine oat flour. Oatmeal is chiefly eaten as porridge, but may also be used in a variety of baked goods, such as oatcakes, oatmeal cookies, oat bread and raw material for food, health care and cosmetic products. The major components of...

Author(s): Ahmad, Mushtaq, Zaffar, Gul, Dar,  Z. A.  and Habib, Mehfuza 

Blood glucose level of plasma samples prepared from sodium fluoride and lithium heparin anticoagulants for diabetes mellitus diagnosis

February 2014

The aim of this study was to compare blood glucose levels, which were prepared from NaF and lithium heparin anticoagulants for diabetes mellitus (DM) screening test. DM-check up Clinic at Kutchap Hospital, Udonthani province collected the blood samples and filled sodium fluoride (NaF) and lithium heparin tubes (Greiner Bio-One, Austria) from 300 customers. Then, plasma was separated immediately from each blood sample...

Author(s): Sudjaroen, Yuttana

Metamaterials for performance enhancement of patch antennas: A review

February 2014

This review paper focused on the use of metamaterials for the performance enhancement of microstrip patch antennas. In this work, the definition of metamaterials used in literature is first reviewed and then we consider various challenging issues for the microstrip patch antennas. The paper hence concludes some thoughts on the future scope of research in the field of metamaterials, discussing the advantages that...

Author(s): Singh, Ranjeeta, Kumar, Nitin and Gupta, S. C.

Development of UV digestion unit for natural rubber latex preparation before the determination of phosphorus residue with artificial neural network-digital image-based colorimetry

January 2014

Digital image–based colorimetry (DIC) coupled with artificial neural network (ANN) was studied for the determination of phosphorus in natural rubber (NR) latex. The method is based on the RGB (Red, Green, and Blue) value of an image of phosphorus standard solution reacted with molybdenum blue solution. The picture of the complex solution was captured by using a complementary metal oxide semiconductor (CMOS)...

Author(s): Masawat, Prinya, Panwong, Benyanan and Udnan, Yuthapong

Evolution characteristics and driving forces of wetland changes in the Poyang Lake eco-economic zone of China

January 2014

Wetland ecosystem is known as the “kidney” of earth and the “gene pool” of species. It has the functions of regulating climate, flood storage and degradation of pollution. In this paper, based on GIS technology and landscape ecology, wetland changes and its driving forces in the Poyang Lake Eco-economic Zone of China are analyzed. The analysis of landscape pattern demonstrates that there is an...

Author(s): Xie, Hualin, Liu, Qu and Liu, Guiying

Analysing social attributes of loan default among small Indian dairy farms: A discriminant approach

January 2014

The study examines the socio-economic factors discriminating defaulters and non-defaulters of credit repayment. Multi-stage sampling design was adopted for selection of farm respondents. The data were collected through structured questionnaire by personal interview method. A linear discriminant function considered to examine the relative importance of different factors in discriminating between non-defaulters and...

Author(s): Sinha, Mukesh Kumar, Dhaka, J. P. and Mondal, Biswajit

Saffron (Crocus sativus L.) in the light of biotechnological approaches: A review

January 2014

Saffron (Crocus sativus L.) is a sterile triploid plant belonging to the Iridaceae (Liliales, Monocots). Saffron is a spice derived from the flower and has for decades been the world's most expensive spice. Saffron is propagated by corms as the flowers are sterile and fail to produce viable seeds. A corm survives for only one season, producing up to ten "cormlets" that eventually give rise to new plants....

Author(s): Ahmad, Mushtaq, Zaffar, Gul, Habib, Mehfuza,  Arshid, Ameeque, Dar,  N. A. and Dar, Z. A. 

Effect of Phyllanthus amarus leaf extract on alterations of haematological parameters in Salmonellae typhi infested wistar albino rats

January 2014

Haematological indices provide crucial information to assessing the well-being of an organism. In this present study, the antihaematotoxic effect of Phyllanthus amarus leaf extract on Salmonellae typhi–induced haematotoxicity in rats were investigated. The experimental animals were randomly divided into three study groups. Group 1 received feed and water and was not induced with typhoid (negative control). Groups...

Author(s): Nwankpa, P, Agomuo, E. N., Uloneme, G. C., Egwurugwu, J. N., Omeh, Y. N. and nwakwuo, G. C.

Influence of season affecting flowering and physiological parameters in mango

January 2014

A field experiment was conducted at State Horticultural Farm, Kanyakumari District undertaken by the Horticultural College and Research Institute, Tamil Nadu Agricultural University, Periyakulam during the year 2010 to 2012. In general, mango flowering is considered as a complex phenomenon. Besides, favorable climate conditions that favours off-season flowering, genetic potential of the varieties, physiological and...

Author(s): Kumar, M., Ponnuswami, V., Kumar, P. Jeya and Saraswathy, S.

Effective irrigation water management in Rabi Chilli for Bastar agro climatic zone

December 2013

Chilli is one of the most promising vegetable crops for Bastar Agro Climatic Zone (ACZ) of Chhattisgarh State (India). Even though the region receives an average annual rainfall of 1200 to 1400 mm, it still lags double cropping system due to mismanagement of harvested and conserved rainfall. A field experiment was conducted on chilli crop (variety – NS 1701) to study the irrigation scheduling and effect of...

Author(s): D. Khalkho, R. K. Naik, A. K. Thakur, Y. Bisen and A. K. Chandraker

Multiple attribute decision making for selection of mechanical cotton harvester

December 2013

A numerical method called Multiple Attribute Decision Making (MADM) has been used for rational selection of a cotton harvester out of a finite number of cotton harvesters available the world over. In India, efforts are being made to design and develop a commercial cotton harvester to harvest selected cotton varieties sown by adopting common agronomic practices locally for cotton cultivation. The crop parameters for two...

Author(s): S. S. Kohli, Manjeet Singh, Karun Sharma and Gayatri Kansal

Decomposition of productivity growth in watersheds: A study in Bundelkhand region of Madhya Pradesh, India

December 2013

Total change in production and productivity are the two important dimensions of benefits of watershed development programmes along with the conservation of land and water resources. To segregate out the impact of various watershed-based interventions on crop productivity, a study was carried out in Bundelkhand region of Madhya Pradesh state of India. Data were collected from 240 farmers’ selected from eight...

Author(s): Biswajit Mondal, Alka Singh, S.D. Singh, Mukesh Kumar Sinha and D. Suresh Kumar

Gene action and combining ability for fodder yield and its attributing traits in oats (Avena sativa L.)

December 2013

Studies in forage oats (Avena sativa L.) were carried out to generate information on combining ability (general and specific), nature and magnitude of gene effects for forage yield and their attributing traits. The experimental materials comprised of ten diverse parents and 45 F1 crosses (excluding reciprocals) generated through 10 x 10 diallel mating design. The experimental material was evaluated in a randomized...

Author(s): Mushtaq Ahmad, Gul Zaffar, S. M. Razvi, S. D. Mir, M. A. Rather and Z. A. Dar

Heterobasidion root rot in forests on former agricultural lands in Poland: Scale of threat and prevention

December 2013

This paper describes the specifics of forests on former farmlands in Poland and their protection as well as preventive measures taken. The review refers to polish literature on the threat by root rot caused by Heterobasidion annosum (Fr.) Bref. to pine and spruce plantations established on post-agricultural lands on an area of more than 1400 000 ha. In Europe, the latter presents an outstanding example of only one of...

Author(s): Zbigniew Sierota

An experimental setup to seek for maximum power point tracking of photovoltaic panels

December 2013

Energy is a very important issue nowadays. In the last years a lot of researchers have dedicated their studies to looking for new energy sources. In Brazil, we have the privilege to have an amount of sunlight per year - very high all over the country. This fact motivated this research. In this work we present an experimental approach for achieving maximum power point tracking of photovoltaic panels. To do so, we...

Author(s): Henrique Silveira Meyer, Álvaro Manoel de Souza Soares, Otávio Simões de Araújo Neto, Pedro Paulo Leite do Prado and João Bosco Gonçalves

Common fixed point theorems for some generalized non-expansive mappings and non-spreading mappings in CAT(0) spaces

December 2013

We study the existence of a common fixed point for some generalized non-expansive mappings and non-spreading mappings in CAT(0) spaces. We also study an iterative method for approximating common fixed point of a pair of those mappings. Key words: CAT(0) Space, nonspreading mapping, common fixed  point.

Author(s): Tanaphong Prommai, Attapol Kaewkhao and Warunan Inthakon

Measurement of trimethylamine contents and evaluation of pig meat natural quality by spectrophotometric method

December 2013

Pig meat off-flavor was attributed to trimethylamine (TMA) contents, and to evaluate pig meat natural quality at different breeds, genders and days is reported. In this study, total 49 leg meat samples were used to assay TMA contents and 18 for measurement of TMA threshold to evaluate the natural quality. Xiang Mini pig contained the lowest TMA value (11.31±0.25 μg/g) in the four tested breeds, whose meat...

Author(s): Mohammod Abdul Hamid, Xi Wang, and Xingbo Zhao

Environmental assessment, instrumentation-quality tests of radiological equipment and human health implications

December 2013

The health implications of human exposures to ionizing radiation may be deleterious on the immunity mechanism, particularly when large but sub-lethal doses are applied over a period of time. Quality control tests of X-ray equipment and environmental monitoring of a private radiological center (Moroko X-ray Center, Lagos) was carried out. The results showed that radiological personnel and the facilities for safety were...

Author(s): Oluwafisoye, P. A., Obed, I. R., Bisi-Johnson, M. A., Olowookere, C. J., Popoola, A. O. and Efunwole, H. O.

Chebyshev wavelets method for boundary value problems

December 2013

Chebyshev wavelets method (CWM) is applied to find numerical solutions of fifth and sixth order boundary value problems. Computational work is fully supportive of compatibility of proposed algorithm and hence the same may be extended to other physical problems also.  A very high level of accuracy explicitly reflects the reliability of this scheme for such problems. Key words: Chebyshev wavelets method (CWM),...

Author(s): Ayyaz Ali, Muhammad Asad Iqbal and Syed Tauseef Mohyud-Din

Fine-grained federation of geographic information services through metadata aggregation

December 2013

Large scale Geographic Information Systems (GIS) require experts from different areas, such as data maintenance and handling, data rendering and displaying, and data processing. However, it is challenging to host data, processing capabilities, and experts in the same geographical location. To enable remote coupling of these data and processing services, interoperable distributed system architectures have been developed....

Author(s): Ahmet Sayar

Modeling of adsorption isotherm of benzoic compounds onto GAC and introducing three new isotherm models using new concept of Adsorption Effective Surface (AES)

December 2013

In this research, by using derivation of Langmuir isotherm model and sharing point of this model with Volmer, Kiselev and Fowler-Guggenheim models, a new simple approach to derivation of isotherm models named Adsorption Effective Surface (AES) was introduced. Using AES method, one can explain such behavior of theoretical models as in predicting maximum adsorption capacity (qm). In this method, adsorption and desorption...

Author(s): M. Davoudinejad and S. A. Ghorbanian

Association between emotional intelligence and illicit drug involvement: A study in adolescents in Tehran, Iran

December 2013

The study sought to assess if there is an association between emotional intelligence (EI) with illicit drug use in adolescents, and if this link is independent of social and parental variables. In this cross-sectional study, 990 randomly selected adolescents (age 15 - 17) from public high schools in Tehran, Iranian capital, were interviewed in 2006. The independent data consisted of EI (measured by the Bar-On Emotional...

Author(s): Katayoon Khushabi, Setareh-Ameneh-Forouzan and Mehdi Akbarian

Improvements of dry sliding wear behaviour and mechanical properties in 2014 Al alloy by age-hardening

December 2013

In this study AA 2014 powder metal alloy was produced by using the vertical gas atomization method. In the post-production stage, by unidirectional pressure in the steel mould, the powders were converted into powder metal samples. The derived powder metal particles from the micro structural point were subjected to sintering process for 1 h at the temperature range of 550 and 620°C. Next, the samples were exposed to...

Author(s): Hakan GOKMESE and Bulent BOSTAN

Impact of zinc application on its translocation into various plant parts of wheat and its effect on chemical composition and quality of grain

December 2013

A field experiment was conducted under All India Co-ordinated Research Project on “Micro, secondary nutrients and pollutant elements in soils and plants” during  two consecutive years 2010-2011 and 2011-2012 with fallow-wheat cropping sequence on a Typic Haplustert at the Research Farm of Department of Soil Science and Agricultural Chemistry, J.N. Krishi Vishwa Vidyalaya, Jabalpur (M.P.) to study the...

Author(s): K.S. Keram, B. L. Sharma, G. D. Sharma and R. K. Thakur

Radial variations in anatomical properties of Melia dubia cav. at five different ages

December 2013

The differences in anatomical characteristics viz., vessel length, vessel diameter, vessel arrangement, vessel frequency, ray height, ray width, ray frequency, fibre length, fibre diameter, fibre wall thickness and fibre lumen width of one, two, three, four and five year old Melia dubia cav. respectively were investigated. The wood samples were systematically collected from the pith, middle and periphery wood sections...

Author(s): V. Saravanan, K. T. Parthiban, I. Sekar, P. Kumar and S. Vennila

Application review of add drop multiplexer through OXADM device

December 2013

In this paper, we overviewed a new architecture of asymmetrical optical switch device which is expected to have vast application in optical communication and monitoring system. As reported in previous publication, it has many excellent features such as low crosstalk, lossless and multifunction. The multifunctional device means the integration of single functional devices onto single architecture and Optical Cross Add...

Author(s): Mohammad Syuhaimi Ab-Rahman

Accumulation of heavy metals on soil and vegetable crops grown on sewage and tube well water irrigation

November 2013

Consumption of food crops contaminated with heavy metals is a major food chain route for human exposure. In the present study, vegetables grown in the sewage and tube well water irrigation are Raphanus sativus, Daucus carrota and Brassica rapa. Concentration of Cd, Pb and Ni was significantly higher in sewage irrigated soil at all the four depths (0-15, 15-30, 30-45 and 45-60 cm), respectively. Cadmium, Lead and Nickel...

Author(s): Ashiq Hussain Lone, Eugenia P. Lal, Sasya Thakur, S. A. Ganie, Mohammad Saleem Wani, Ani Khare, Sajad Hussain Wani and Fayaz Ahmad Wani

An examination of the effect of discretization on a naïve Bayes model's performance

November 2013

A Bayesian network (or a belief network) is a probabilistic graphical model that represents a set of variables and their probabilistic independencies. Some researches often involve continuous random variables. In order to apply these continuous variables to BN models, these variables should convert into discrete variables with limited states, often two. During the discretization process, one problem that researchers...

Author(s): Arezoo Aghaei Chadegani and Davood Poursina

Henna stained palms in patients with carpal tunnel syndrome (CTS)

November 2013

Carpal tunnel syndrome (CTS) is the most common diagnosed upper limb compressive neuropathy; though its diagnosis remains controversial. Some patients apply Henna (the extracts of the plant Lawsonia inermis) to their palms to relieve the symptoms. We don’t know how common is this practice and if it does help in clinical diagnosis. The purpose of this study was to examine the diagnostic value of a new clinical...

Author(s): Jihad Al-Ajlouni, Mohamad Yasin, Shaher El-Hadidi, and Omar Samarah,

Effect of plant biostimulants on fruit cracking and quality attributes of pomegranate cv. Kandhari kabuli

November 2013

The present experiment was laid out in the experimental orchard of the Department of Fruit Science, Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh during the year 2008 to 2009. The experiment consisted of 19 treatments with three replications. The pomegranate trees cv. kandhari kabuli under investigation were subjected to foliar spray of biostimulants viz. vipul, spic...

Author(s): Aziz Rahman Abubakar, Naira Ashraf and Moieza Ashraf

Numerical solutions for the time fractional variant Bussinesq equation by homotopy analysis method

November 2013

In this article, the fractional derivatives in the sense of Caputo, and the homotopy analysis method (HAM) are used to construct the approximate solutions for the nonlinear fractional variant Bussinesq equations with respect to time fractional derivative. The HAM contains a certain auxiliary h parameter which provides us a simple way to adjust and control the convergence region and rate of convergence of the series...

Author(s): Mohamed S. Mohamed,  and  Khaled A. Gepreel,

Study of germination conditions of cassava (Manihot esculenta Crantz) seeds obtained by genetic selection

November 2013

Cassava (Manihot esculenta Crantz) is the third most important source of calories for human and animal in Africa. Its production is adversely affected by Cassava Mosaic Disease (CMD) which is the most important viral disease in cassava fields. To fight these virus diseases, it is significant to seek strategies of effective control while answering the taste of consumers. One of these strategies is to create new...

Author(s): Adjata K. D., Tchaniley L., E. Banla, K. K. Tchansi and Y. M. D. Gumedzoe

Categorical statistical approach to satellite retrieved rainfall data analysis in Nigeria

November 2013

This paperwork describes a comprehensive statistical assessment of rain gauge and satellite- based monthly and annual rainfall measurements over Nigeria during the period of 2001 to 2010. Two statistical methods were empolyed for inter-comparison and validation of the Tropical Rainfall Measuring Mission - TRMM 3B43 V7 rainfall product. TRMM was selected because of the recently developed algorithms to estimate 3D rain...

Author(s): Semire Folasade Abiola, Rosmiwati Mohd-Mokhtar, Widad Ismail, Norizah Mohamad, and J. S. Mandeep

Effect of nitrogen, sulphur and farmyard manure on growth dynamics and yield of sunflower (Helianthus annuus L.) under temperate conditions

November 2013

An attempt was initiated during two consecutive kharifs of 2009 and 2010 at Agronomy Farm of Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir to ascertain the impact of nitrogen (N), sulphur (S) and farmyard manure (FYM) which was taken from farm animals (Bovine) on developmental dynamics and yield of sunflower. Application of N at 80 and 120 kg ha-1 at par, significantly increased periodic...

Author(s): Faisul-ur-Rasool, Badrul Hasan, Intikhab Aalum and S. A. Ganie

Skeletogenesis of the pelvic girdle and pelvic members in embryos of Caiman yacare (Crocodylia: Alligatoridae)

November 2013

Caiman yacare embryos were collected and subjected to the bone cleared and Alizarin staining to analyze the ontogenic patterns of the skeletal ossification of the pelvic girdle and members. Ossification of C. yacare pelvis begins at 36 days of incubation. The femur, tibia and fibula present simultaneous stain retention at 30 days. It has four tarsal bones, the calcaneus, the talus, distal III and distal IV. Their...

Author(s): Fabiano Campos Lima, André Luiz Quagliatto Santos, Lucélia Gonçalves Vieira, Cristiele Nunes Souto, Sônia Helena Santesso Teixeira de Mendonça, Simone Borges Salgueiro De Simone, Clarissa de Araújo Martins and Marcos Eduardo Coutinho

Effect of fertilizer level and spacing on seed yield and quality of babchi (Psoralea corylifolia L.)

November 2013

Nutrient management and maintenance of optimum number of plants per unit area are considered as important management tool for enhancing the productivity of crop plants.  Therefore this experiment was conducted to identify the optimum level of NPK fertilizer and spacing required for obtaining higher seed yield with quality in underutilized medicinal plant babchi (Psoralea corylifolia L.). The evaluation was...

Author(s): Sumathi, S., P. Srimathi, K. Vanangamudi and K. Rajamani

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

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

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