bluuebunny/crossref_metadata_2025 huggingface dataset:
Mitochondrial stress-dependent regulation of cellular protein synthesis
Authors: Topf Ulrike , Uszczynska-Ratajczak Barbara , Chacinska Agnieszka
Published: April 2019

The production of newly synthesized proteins is vital for all cellular functions and is a determinant of cell growth and proliferation. The synthesis of polypeptide chains from mRNA molecules requires sophisticated machineries and mechanisms that need to be tightly regulated, and adjustable to current needs of the cell. Failures in the regulation of translation contribute to the loss of protein homeostasis, which can have deleterious effects on cellular function and organismal health. Unsurprisingly, the regulation of translation appears to be a crucial element in stress response mechanisms. This review provides an overview of mechanisms that modulate cytosolic protein synthesis upon cellular stress, with a focus on the attenuation of translation in response to mitochondrial stress. We then highlight links between mitochondrion-derived reactive oxygen species and the attenuation of reversible cytosolic translation through the oxidation of ribosomal proteins at their cysteine residues. We also discuss emerging concepts of how cellular mechanisms to stress are adapted, including the existence of alternative ribosomes and stress granules, and the regulation of co-translational import upon organelle stress.
FKBP12 mediates necroptosis by initiating RIPK1–RIPK3–MLKL signal transduction in response to TNF receptor 1 ligation
Authors: Wang Zicheng , Feng Jiannan , Yu Jiyun , Chen Guozhu
Published: April 2019

Necroptosis is a regulated form of necrotic cell death that is mediated by receptor-interacting serine/threonine-protein kinase 1 (RIPK1), RIPK3 and mixed-lineage kinase domain-like protein (MLKL), which mediates necroptotic signal transduction induced by tumor necrosis factor (TNF). Although many target proteins for necroptosis have been identified, no report had indicated that FK506-binding protein 12 (FKBP12, also known as FKBP1A), an endogenous protein that regulates protein folding and conformation alteration, is involved in mediating necroptosis. In this study, we found that FKBP12 acts as a novel target protein in mediating necroptosis and the related systemic inflammatory response syndrome triggered by TNF. The mechanistic study discovered that FKBP12 is essential for initiating necrosome formation and RIPK1–RIPK3–MLKL signaling pathway activation in response to TNF receptor 1 ligation. In addition, FKBP12 is indispensable for RIPK1 and RIPK3 expression and subsequent spontaneous phosphorylation, which are essential processes for initial necrosome formation and necroptotic signal transduction; therefore, FKBP12 may target RIPK1 and RIPK3 to mediate necroptosis in vitro and in vivo. Collectively, our data demonstrate that FKBP12 could be a potential therapeutic target for the clinical treatment of necroptosis-associated diseases.
Ion channel gating in cardiac ryanodine receptors from the arrhythmic RyR2-P2328S mouse
Authors: Salvage Samantha C. , Gallant Esther M. , Beard Nicole A. , Ahmad Shiraz , Valli Haseeb , Fraser James A. , Huang Christopher L.-H. , Dulhunty Angela F.
Published: April 2019

Mutations in the cardiac ryanodine receptor Ca2+ release channel (RyR2) can cause deadly ventricular arrhythmias and atrial fibrillation (AF). The RyR2-P2328S mutation produces catecholaminergic polymorphic ventricular tachycardia (CPVT) and AF in hearts from homozygous RyR2P2328S/P2328S (denoted RyR2S/S) mice. We have now examined P2328S RyR2 channels from RyR2S/S hearts. The activity of wild-type (WT) and P2328S RyR2 channels was similar at a cytoplasmic [Ca2+] of 1 mM, but P2328S RyR2 was significantly more active than WT at a cytoplasmic [Ca2+] of 1 µM. This was associated with a >10-fold shift in the half maximal activation concentration (AC50) for Ca2+ activation, from ∼3.5 µM Ca2+ in WT RyR2 to ∼320 nM in P2328S channels and an unexpected >1000-fold shift in the half maximal inhibitory concentration (IC50) for inactivation from ∼50 mM in WT channels to ≤7 μM in P2328S channels, which is into systolic [Ca2+] levels. Unexpectedly, the shift in Ca2+ activation was not associated with changes in sub-conductance activity, S2806 or S2814 phosphorylation or the level of FKBP12 (also known as FKBP1A) bound to the channels. The changes in channel activity seen with the P2328S mutation correlate with altered Ca2+ homeostasis in myocytes from RyR2S/S mice and the CPVT and AF phenotypes.

This article has an associated First Person interview with the first author of the paper.
Microtubule nucleation during central spindle assembly requires NEDD1 phosphorylation on serine 405 by Aurora A
Authors: Courthéoux Thibault , Reboutier David , Vazeille Thibaut , Cremet Jean-Yves , Benaud Christelle , Vernos Isabelle , Prigent Claude
Published: April 2019

During mitosis, the cell sequentially constructs two microtubule-based spindles to ensure faithful segregation of chromosomes. A bipolar spindle first pulls apart the sister chromatids, then a central spindle further separates them away. Although the assembly of the first spindle is well described, the assembly of the second remains poorly understood. We report here that the inhibition of Aurora A leads to an absence of the central spindle resulting from a lack of nucleation of microtubules in the midzone. In the absence of Aurora A, the HURP (also known as DLGAP5) and NEDD1 proteins that are involved in nucleation of microtubules fail to concentrate in the midzone. HURP is an effector of RanGTP, whereas NEDD1 serves as an anchor for the γ-tubulin ring complex (γTURC). Interestingly, Aurora A phosphorylates HURP and NEDD1 during assembly of the initial bipolar spindle. We show here that the expression of a NEDD1 isoform mimicking phosphorylation by Aurora A is sufficient to restore microtubule nucleation in the midzone under conditions of Aurora A inhibition. These results reveal a new control mechanism of microtubule nucleation by Aurora A during assembly of the central spindle.
The Myopic Property in Decision Models
Authors: Baucells Manel , Sarin Rakesh K.
Published: April 2019

We examine conditions under which decisions made in isolation provide an optimal strategy for the multiperiod problem. We focus on investment decisions with constant returns to scale. We first consider the framework of subjective expected utility. Under minimal assumptions (i.e., without assuming utility is concave), we prove that only log utility is myopically optimal when returns are serially correlated. When returns are serially independent, we generalize Mossin’s result [Mossin J (1968) Optimal multiperiod portfolio policies. J. Bus. 41(2):215–229.] that only log and power, including linear and convex, possess the myopic property. Finally, we extend the inquiry when probabilities are uncertain and the decision maker uses the recursive smooth model of ambiguity to identify an optimal strategy. We show that with serial correlation, preferences including ambiguity concerns cannot be myopic and optimal. Without correlation, we identify the exact pairs of utility and ambiguity functions that permit myopic decision rules.
Managing Appointment Booking Under Customer Choices
Authors: Liu Nan , van de Ven Peter M. , Zhang Bo
Published: April 2019

Motivated by the increasing use of online appointment booking platforms, we study how to offer appointment slots to customers to maximize the total number of slots booked. We develop two models, nonsequential offering and sequential offering, to capture different types of interactions between customers and the scheduling system. In these two models, the scheduler offers either a single set of appointment slots for the arriving customer to choose from or multiple sets in sequence, respectively. For the nonsequential model, we identify a static randomized policy, which is asymptotically optimal when the system demand and capacity increase simultaneously, and we further show that offering all available slots at all times has a constant factor of two performance guarantee. For the sequential model, we derive a closed form optimal policy for a large class of instances and develop a simple, effective heuristic for those instances without an explicit optimal policy. By comparing these two models, our study generates useful operational insights for improving the current appointment booking processes. In particular, our analysis reveals an interesting equivalence between the sequential offering model and the nonsequential offering model with perfect customer preference information. This equivalence allows us to apply sequential offering in a wide range of interactive scheduling contexts. Our extensive numerical study shows that sequential offering can significantly improve the slot fill rate (6%–8% on average and up to 18% in our testing cases) compared with nonsequential offering. Given the recent and ongoing growth of online and mobile appointment booking platforms, our research findings can be particularly useful to inform user interface design of these booking platforms.

This paper was accepted by Gad Allon, operations management.
The Effects of Off-Highway Vehicle Trails and Use on Stream Water Quality in the North Fork of the Broad River
Authors: Miniat Chelcy Ford , Clinton Patsy P. , Everage Laren K.
Published: April 2019

Abstract. Managing forests for recreational benefits, such as off-highway vehicle (OHV) use, as well as other ecosystem services, such as clean and abundant water, can often present challenges for land managers when one ecosystem service conflicts with another. We conducted research in the Chattahoochee-Oconee National Forest to determine if the presence and use of OHV trails were associated with greater total suspended solids (TSS) concentrations and turbidity in streams during storm events in 2015-2016. We used a paired-watershed approach, with a treatment watershed containing the Locust Stake OHV trail system on the North Fork of the Broad River, and a reference watershed (Kimbell Creek) similar in all respects except for the presence and use of OHV trails. During the study period, mean streamflow rates across all sampling times were 19% greater, but mean stormflow rates were 29% less, at Locust Stake compared to Kimbell Creek. During storm sampling, the average storm TSS concentration was greater at Locust Stake (101.1 mg L-1) than at Kimbell Creek (65.3 mg L-1). The results indicate that the greater the stormflow, the greater the TSS concentration for each storm event sampled across both watersheds. TSS concentration was linearly and positively related to stormflow, with R2 values ranging from 0.11 to 0.92 for all events in both watersheds. Across all sampling dates, the TSS concentration per unit stormflow was greater at Locust Stake than at Kimbell Creek, and was 7-fold greater at Locust Stake after the OHV trails were opened compared to when they were closed for maintenance and assessment. When the OHV trails were closed, the TSS concentration per unit stormflow was still significantly greater, by 4-fold, at Locust Stake compared to Kimbell Creek. Our results suggest that the presence and use of the Locust Stake OHV trail system are associated with poorer water quality, and with better water quality when the trails are closed. Forest managers face a well-defined set of tradeoffs between providing OHV recreation and water quality benefits that warrants careful planning and monitoring. Keywords: National Forest System, Off-highway vehicles, Recreation, Sedimentation, Streamflow, Turbidity, Water quality.
Soil Cutting by a Compact Disc Harrow Having Various Disc Arrangements
Authors: Zeng Zhiwei , Chen Ying , Qi Long
Published: April 2019

Abstract.

The compact disc harrow (CDH) is a relatively new type of conservation tillage implement. The disc arrangement on the implement is critical to the tillage performance. The objective of this study was to investigate the effects of disc spacing and offset on the tillage performance of a CDH. Tests were conducted in an indoor soil bin using a CDH with three-disc units. The spacing of the two rear discs in each unit was set at 203, 254, or 305 mm, and the front discs were set at one of three offset positions (left, center, or right) relative to the rear two discs. The discs were operated at two different tillage depths: shallow (63.5 mm) and deep (127 mm). The results showed that the soil cutting area ratio (the ratio of disturbed area to the total area of the furrow) decreased as the spacing increased from 203 to 305 mm. In contrast, the soil cutting efficiency (the volume of soil cut per unit quantity energy used) remained constant in the shallow tillage depth and increased in the deep tillage depth. As for the effect of offset, the center position resulted in a soil cutting area ratio of more than 80%, which was superior to the other two offset positions. However, the right offset had the highest efficiencies of 15.3 and 22 m3 MJ-1 in the shallow and deep tillage depths, respectively. The common standard disc spacing of 254 mm with a center offset was not necessarily the optimal setting, depending on the working depth and tillage performance indicators of interest. Keywords: Disc, Offset, Performance, Soil Cutting, Spacing, Tillage.
Soil disturbance by cut-to-length machinery on mid-grained soils
Authors: Sirén Matti , Ala-Ilomäki Jari , Lindeman Harri , Uusitalo Jori , Kiilo Kalle , Salmivaara Aura , Ryynänen Ari
Published: April 2019

Factors affecting soil disturbance caused by harvester and forwarder were studied on mid-grained soils in Finland. Sample plots were harvested using a one-grip harvester. The harvester operator processed the trees outside the strip roads, and the remaining residues were removed to exclude the covering effect of residues. Thereafter, a loaded forwarder made up to 5 passes over the sample plots. The average rut depth after four machine passes was positively correlated to the volumetric water content at a depth of 0â10 cm in mineral soil, as well as the thickness of the organic layer and the harvester rut depth, and negatively correlated with penetration resistance at depths of both 0â20 cm and 5â40 cm. We present 5 models to predict forwarder rut depth. Four include the cumulative mass driven over a measurement point and combinations of penetration resistance, water content and the depth of organic layer. The fifth model includes harvester rut depth and the cumulative overpassed mass and provided the best fit. Changes in the penetration resistance (PR) were highest at depths of 20â40 cm. Increase in BD and VWC decreased PR, which increased with total overdriven mass. After four to five machine passes PR values started to stabilize.
Expandir as escolas, aumentar a frequência, valorizar a agricultura: Celeste Gobbato e a educação municipal (Caxias do Sul, RS, 1924-1928)
Authors: Luchese Terciane Ângela
Published: April 2019

O presente artigo analisa a administração de Celeste Gobbato no município de Caxias nos anos de 1924 a 1928. Gobbato imigrou da Itália contratado pelo governo estadual para atuar na Escola de Engenharia de Porto Alegre como professor. Com formação superior e doutorado em Ciências Agrárias, para além de sua atuação marcante no campo da vitivinicultura e da docência, foi indicado e assumiu a intendência de Caxias na década de 1920. Chegou ao poder em nome da conciliação política e elegeu como um dos pontos prioritários a escolarização. Sua gestão foi marcante seja pela expansão das escolas municipais e investimento no ensino rural, seja pela construção e abertura do Patronato Agrícola. O artigo procura evidenciar as estratégias colocadas em jogo para a promoção da escolarização no período de sua gestão que intentou expandir a oferta, aumentar a frequência e melhorar o ensino rural.
Determination of Perception and Adaptive Capacity towards Climate Change among Paddy Farmers in State of Kelantan, Malaysia
Authors: Anis Nik Abdullah Nik , Zahidah Abdul Karim Zalina , Aida Sheikh Hussin Siti , Shaliza Mohd Khairi Siti
Published: April 2019

Rapid changes in the climatic factors affect paddy farming in Malaysia. As Kelantan is the most vulnerable state to climate variations, its paddy production is negatively affected. Proper mitigation and adaptation approach can reduce paddy farmers’ vulnerability to climate change. Hence, it is important to the paddy farmers to cope with climate change by having the right perception to ensure farmers take the right decisions on dealing with climate change. There are four objectives of this study which include estimating the trend of climate change in Kelantan using Mann-Kendall test, determining paddy farmers’ perceptions towards climate change, measuring paddy farmers’ adaptive capability using Analytic Hierarchy Process (AHP) and ascertaining associated factors of the adaptive capacity of paddy farmers using Binary Logistic Regression. Results showed that majority (85.9%) of paddy farmers in Kelantan perceived changes in climate but only 62.9% of paddy farmers were highly adaptive towards climate change. Finally, age, monthly income, and district were found to be significantly associated with paddy farmers’ adaptive capacity towards climate change. Although, most paddy farmers in Kelantan were highly adaptive towards climate change, government and related agencies still need to take some efforts and initiatives to enhance the farmers’ adaptation towards climate change.
Effect of Thermal Radiation on Magneto-Convection of a Micropolar Nanoliquid towards a Non-Linear Stretching Surface with Convective Boundary
Authors: Jagan K. , Sivasankaran S. , Bhuvaneswari M. , Rajan S.
Published: April 2019

The objective of this paper is to analyze the effect of thermal radiation on MHD mixed convection flow of a micropolar nanoliquidÂ Â  towards a non-linear stretching surface with convective boundary condition. The governing equations are converted into non-linearÂ Â Â  ordinary differential equations by using suitable similarity transformations. The homotopy analysis method is used for solving the non-linear ordinary differential equations. The temperature profiles increase due to increase in thermal radiation parameter. The microrotationÂ Â  profile increases when boundary parameter is increased. Also, the skin friction coefficient and local Nusselt are plotted for variousÂ Â Â  parameters.Â Â
Estimation of Gene Frequencies in Clinical Research
Authors: Vijayalakshmi N. , P.Sekhar Dr. , G.Mokesh Rayalu Dr.
Published: April 2019

Biometrics is a branch of statistics in which various mathematical and statistical techniques can be applied to biological research problems. These are two main areas of specialization of Biometry namely, Bioassays and Quantitative Genetics. Genetics concerns with Heredity and variation. Quantitative Genetics is concerned with the inheritances of quantitative differences between individuals.The essence of Quantitative Genetics is to estimate the genetic parameters such as Gene frequencies, segregation Ratios, Recombination of Genes and so on. Among them, the estimation of Gene Frequencies in the population is an important one. The proportion or percentage of genes in the population is called gene Frequency. In the present research articles, the ABO blood group system of man has been described by discussing the multiple alleles; genotypes, Frequencies and phenotypes of blood groups. The various estimation methods for estimating gene frequencies have gene presents in the present study.
A Study on Regular Semigroups and its Idempotents
Authors: Thomas Julie , Indhira K. , M. Chandrasekaran V.
Published: April 2019

An idempotent of a semigroup T is an element e in T such that  In many semigroups, idempotents can be recognized easily. Thus it plays an important role in the structure of semigroups especially on regular semigroups. This article reviews about some research work done about the structure of regular semigroups with a special emphasis on its idempotents.
Optimal Solution of Fuzzy Transshipment Problem Using Generalized Hexagonal Fuzzy Numbers
Authors: P. Ghadle Kirtiwant , M. Ingle Sanjivani , A. Hamoud Ahmed
Published: April 2019

In the present paper, the generalized hexagonal fuzzy number has been newly introduced to deal fuzzy transshipment problem. We solved balance and unbalance fuzzy transshipment problem by various methods. Various methods are compared to find the best solution. The objective of our paper is to find the best method for solving transshipment problem. This procedure is illustrated with numerical examples.Â Â
Numerical and Experimental Investigation on the Aerodynamic performance of roller Airfoil
Authors: Senthil Kumar M. , Vijayanandh R. , Kaviarasan N. , Dinesh Kumar R. , Adrin Issai Arasu I. , Kanmaniraja R.
Published: April 2019

Prevailing norm is a fixed wing in a conventional aircraft, but the prospect appears bright for developing wings that could yield better aerodynamic properties with a change in the form and shape, this may have a wider application in future aviation. The main objective of this paper is to probe such a morphing technology in wings to improve their aerodynamic performance while operating at various cruise conditions. The airfoil is equipped with a rolling mechanism on its upper surface, operated by custom- designed controllers. This roller airfoil model will generate higher lift at low angles of attack and substantially increase flight performance, leading to the evolution of a create multiple-regime, aerodynamically efficient aircraft. This paper aims to compare the performance enhancement of roller airfoil over a conventional airfoil, by increasing the velocity at the upper surface of the airfoil to increase the lift to drag ratio using typical engineering analyses. The cambered airfoil chosen here is NACA 4412. Morphing concept brings about the improvement due to a reduction in lift-induced drag by promoting large laminar flow run on the upper surface of the wing.Â Â
Multivariate Quadratic Quasigroup Polynomial based Cryptosystem in Vanet
Authors: Selvakumar K. , Naveen Kumar S.
Published: April 2019

Vehicular Ad-hoc Network (VANET) is a developing transmission system to abet in the everyday organization of vehicular traffic and safety of vehicles (nodes). Unsigned verification is one of the key necessities in VANET gives the confidentiality of the root of the message. Current security conventions in VANET’s gives unsigned verification depends on the two-tier architecture, comprises of two VANET components, particularly nodes and Roadside Units (RsU’s) functioning as the key developing server (KDS). This protocol depends densely on RsU’s to give unsigned identification to the nodes. In this paper, we propose the K-means Cluster Head algorithm which is utilized for guide assortment, for both personal-best (’pbest’) and global-best (’gbest’), are observed a tremendously successful and complete well evaluate to the before existing methods. Here, we also propose an asymmetric encryption algorithm, with emphasis on Multivariate Quadratic Quasigroups (MVQQ) algorithm, in a circumstance of VANET. We set forward prime pseudonyms reasonably make a long time cycle that are worn to interact with semi-confided in experts and alternate pseudonyms with a minor lifetime which are utilized to talk with different nodes.
Fuzzy Generalized Fractal Dimensions Using Inter-Heartbeat Interval Dynamics in ECG Signals for Age Related Discrimination
Authors: Easwaramoorthy D. , S. Eliahim Jeevaraj P. , Gowrisankar A. , Manimaran A. , Nandhini S.
Published: April 2019

Fractal theory is the propelled technique to analyze the non-linear signals with more complexity.  Quantification of chaotic nature and complexity of the multifaceted therapeutic signals requires the estimation of the spectrum of Generalized Fractal Dimensions (GFD) where the complexity means greater inconstancy in the general form of fractal dimension range.  This paper has proposed a fuzzy multifractal technique to analyze the age related classifications by using the Fuzzy Generalized Fractal Dimensions (F–GFD) with Gaussian fuzzy valued function through the cardiac inter-beat interval dynamics in electrocardiogram (ECG) signals.  It has been revealed that, the designed Fuzzy GFD method accurately categorizes the young and old age subjects by graphical comparison with the typical GFD method.  The classification rate of young and elderly subjects has also supported statistically by ANOVA test.   Hence the fuzzified multifractal analysis accomplishes significantly to discriminate age groups than the classical multifractal analysis in heartbeat rate time series from ECG signals and also the conventional GFD is a specific case of the proposed F–GFD.
Network Border Patrol: Prevent Profusion Crash and Prating Decency in the Network
Authors: Pawan Kumar Kurmi B. , Jain Rahul , Dheeraj Reddy K. , Anjaneyulu GSGN
Published: April 2019

The process to process pattern of online network mobbing flow control is a significant constituent in its scalability metrics and heftiness altercation no protocol, mechanism, or ability must be given into the Internet. In this article, we propose and investigate new approach congestion avoidance approach is known as Network Border Patrol (NBP).Process to process congestion traffic control is only single approach; NBP trusts on the conversion and evaluation in the middle of routers at the rims of a network. This depends on priority to identify and restrict not responding traffic flux before they enter the network. However, they are incompetent to avert the jamming disintegration, but damage produced by claims that are insensitive to network online blocking to report the above malady problem.
Flow of a Jeffrey Fluid Between Two Long Vertical Thin Plates with Porous Medium
Authors: Sreenadh S. , Govindarajulu B. , N.S. Srinivas A. , Nageshwar Rao R.
Published: April 2019

The present study investigates fully developed free - convection Jeffrey fluid flow between two vertical plates with porous medium. The vertical plates are moving with same velocity but in opposite directions. The coupled nonlinear governing equations are solved by using the linearization technique. The solutions for velocity distribution, temperature distribution, skin friction and rate of heat transfer is obtained in the presence of porous medium by Iterative procedure.  Shooting technique with Runge - Kutta method of order four is proposed to compare the numerical results for velocity and temperature distribution. The numerical results obtained by both methods are compared and presented graphically. It is observed that an increase in the permeability parameter causes decrease in the fluid velocity and an increase in the Jeffrey fluid parameter causes an enhancement in the fluid velocity. The significance of various pertinent parameters like Grashof number, Prandtl number, Eckert number and the plate velocity are explained through graphs.
Predictive Modelling of Rainfall Data for Aurangabad Region by using ARIMA Method
Authors: D. Patil Rupali , S. Jadhav O.
Published: April 2019

In day to day life prediction of weather parameters play important role for planning in environment management fields. Predictive modelling of rainfall is very necessary criterion for water management resources. In time series analysis most effective autoregressive integrated moving average model (ARIMA) are used. In this paper, we set up various ARIMA models for prediction of rainfall from which ARIMA (1, 0, 0) (2, 0, 0)12 are best fitted models for future forecasting purpose. Forecasting the next three years has been described to decide water demand management priorities.
Test Data Compression with Alternating Equal-Run-Length Coding
Authors: S Sivanantham , Babu S Aravind , Ramki Babu , P.S Mallick
Published: April 2019

This paper presents a new X-filling algorithm for test power reduction and a novel encoding technique for test data compression in scan-based VLSI testing. The proposed encoding technique focuses on replacing redundant runs of the equal-run-length vector with a shorter codeword. The effectiveness of this compression method depends on a number of repeated runs occur in the fully specified test set. In order to maximize the repeated runs with equal run length, the unspecified bits in the test cubes are filled with the proposed technique called alternating equal-run-length (AERL) filling. The resultant test data are compressed using the proposed alternating equal-run-length coding to reduce the test data volume. Efficient decompression architecture is also presented to decode the original data with lesser area overhead and power. Experimental results obtained from larger ISCAS'89 benchmark circuits show the efficiency of the proposed work. The AERL achieves up to 82.05 % of compression ratio as well as up to 39.81% and 93.20 % of peak and average-power transitions in scan-in mode during IC testing.
Retrieval Performance for USIM's Quranic Search Engine
Authors: Basir Nurlida , F. Nabila N. , Juana Mohd Zaizi Nurzi , Mohd  Saudi Madihah , Ridzuan Farida , Ali Pitchay Sakinah
Published: April 2019

The Quran covers every field of life namely medical, political, social, economic, and others. The extraction of quranic knowledge is a challenging task, as the Quran is rich in its linguistic and multi-layered meanings, difficult if done without the use of other resources such as the Hadith and Tafsir by Muslim Scholars. Several Quranic ontologies have been developed, however, most of these only focus on certain domains and language, rather than the content of the Quran. In many cases, the searching cannot retrieve the relevant fields. Discovering the fields of a keyword searched in the Quran can become a guidance to enhance knowledge in a particular domain. In this paper, we propose that the keyword searched in the Quranic ontology can be applied for extracting the relevant fields. For this purpose, exploratory search has been done. The sample domain ontology based on the medical and economic fields mentioned in the Quran has been developed in TopBraid Composer. Queries have been run to depict the proper role of ontology.  Then, certain recommendation for the proposed Quranic ontology attaining semantic search from all domains and the result by searching from verse to domain, or domain to verse, has been proposed.
A Normalized Least Mean Square and Dynamic Time Warping (DTW) Algorithm for an Intelligent Quran Tutoring System
Authors: Arif Mazumder Mohammed , Abdul Salam Rosalina
Published: April 2019

Al-Quran is the most recited holy book in the Arabic language. Over 1.3-billion Muslim all over the world have an obligation to recite and learn Al-Quran. Learners from non-Arabic as well as from Arabic speaking communities face difficulties with Al-Quran recitation in the absence of a teacher (ustad) around. Advancement in speech recognition technology creates possible solutions to develop a system that has a capability to auricularly discern and validate the recitation. This paper investigates the speech recognition accuracy of template-based acoustic models and propose enhancement methods to improve the accuracy. A new scheme consists of enhancement of Normalized Least Mean Square (NLMS) and Dynamic Time Warping (DTW) algorithms have been proposed. The performance of the speech recognition accuracy was further improved by incorporating an adaptive optimal filtering with modified humming window for MFCC (Mel-frequency cepstral coefficients) using matching technique dynamic programming (DP), DTW (Dynamic Time Wrapping). The proposed scheme increases 5.5% of relative improvement in recognition accuracy achieved over conventional speech recognition process.
Measuring E-Commerce Success in Malaysia: Modified Delone Mclean Model with Trust and Privacy
Authors: Imtiaz Ali Najma , Samsuri Suhaila , Sadry Abu Seman Muhamad , Ali Brohi Imtiaz , Shah Asadullah
Published: April 2019

With the influx of the Internet, Business to Customer E-commerce (B2c e-Commerce) has gained popularity around the globe. Although a number of researches has been done to know the factors affecting the adoption of e-commerce, however, not much research has done to know the effects of e-commerce on online shopping success.  DeLone and McLean introduced the Information System (IS) success model in year 1992, later on, refined the same model with the newer concept, to fully understand the effects of IS success. In this paper, authors have used the DeLone and McLean IS success model 2003 with addition two constructs Privacy and Trust.  Seven interrelated dimensions of e-commerce were examined namely, Service Quality, System Quality, Trust, Privacy, User satisfaction and Net benefits. The proposed model and the relationship between the various constructs were measured by gathering the data from 381 users from the business faculty of Klang valley universities in Malaysia. Seven interconnected dimensions of B2C e-commerce success were confirmed namely, Service Quality, System Quality, Information Quality, Trust, Privacy along with User Satisfaction and Net Benefits. Confirmatory Factor Analysis CFA and SEM were used to analyse the collected data and proved the hypothesis. The results revealed that system quality, service quality, trust and privacy are directly related to user satisfaction which in turn directly related to net benefits, whereas information quality has no any influence on user satisfaction in terms of e-commerce.
Performance of Analog Network Coded Communication with Channel Noise Assisted Gain
Authors: Ghanti Basanti , R Patil Rajendra
Published: April 2019

Packet forwarding by embracing interference has created a new insight in the way the interference was understood which we call it as constructive interference. In the present study the performance of Analog Network Coded Communication (ANC) based on the relay gain calculation using Channel Assisted (CA) and Channel noise Assisted (CNA) method is studied and results indicate that in the low Signal to noise ratio (SNR) and high SNR the CNA gives good performance compared to CA in terms of Sum-BER.
Influence of Soil Liquefaction on the Structural Performance of Bridges During Earthquakes: Showa Bridge as A Case Study
Authors: K. Dhahir Mohammed , Nadir Wissam , H. Rasool Mohammed
Published: April 2019

Liquefaction is generally defined as the loss of contact between soil particles during shaking (earthquakes), and it usually occurs in saturated loose sandy soils where the timescale is insufficient for the water to drain from the pores, thus increasing the excess pore pressure, and thereby floating the sand particles. For regular structures with shallow foundations, liquefaction normally leads to loss of soil strength, which leads to settlement of foundations. On the other hand, bridges are usually supported with piles foundation, which introduces additional effects during liquefaction. Therefore, this paper examines the possible effects of liquefaction on the structural performance of bridges during earthquakes. Furthermore, the failure of Showa Bridge during the 1964 Nagata earthquake was also discussed and analyzed as an example of the catastrophic effects of liquefaction. The analysis shows that the most influential effect during liquefaction is the increase in the unsupported length of piles, which leads to several adverse effects such as increasing the lateral displacement, reduce the buckling capacity, increase the bending moment, and reduce the shaft capacity of the pile. Finally, recommendations regarding the design of pile supported bridges in seismic areas with liquefiable soils have also been suggested.
Influence of Micro- Size Silica Powder on Physical and Rheological Characteristics of Asphalt Binder
Authors: H. Zghai Hussein , H. Joni Hasan , S. Hassan Maan
Published: April 2019

During the last years, the use of by-product materials, such as micro silica, mS, especially in the area of highway pavement materials has received increasing interest. The experimental work of this research focused on the investigation of the potential use of micro silica powder to enhance the rheological properties of asphalt cement binder. To achieve this aim, mixtures with various contents of micro silica and asphalt were prepared. The asphalt cement and micro silica were first tested. The micro silica powder has been mixed with the asphalt cement at a temperature of 140 °C by conventional mechanical mixer at 2000 rpm. Two mixing time durations were implemented to produce the modified asphalt mixtures: 30 and 60 minutes. The mS modified asphalt was then evaluated for the empirical physical and rheological properties including penetration value, softening point temperature, temperature susceptibility, Brookfield Rotational viscosity and ductility. The experimental work results showed that micro silica powder reduces penetration value and increases softening point temperature. Progressive increases in mS content were found to increase Brookfield Rotational Viscosity (RV) and tend to decrease the ductility of the studied specimens. The negative effects of added mS were more pronounced at values more than 4%. Finally, the increase in mixing time duration may slightly lead to good micro silica powder dispersion into the asphalt matrix, but it is the consumption of energy and cost.
Experimental Comparability Among Different Accelerated Reinforced Steel Concrete Corrosion Methods
Authors: Sadiq Radhi Mushtaq , S. Hassan Maan , N. Gorgis Iqbal
Published: April 2019

The objective of this paper is to inspect the effect of changing the density of the impressed current and wetting-drying condition on accelerated corrosion of reinforced concrete specimens by a galvanostatic method.Â  Small-scale reinforced concrete columns were prepared and then artificially corroded by different setups of accelerated corrosion under an impressed current and also under different wetting-drying cycles for comparison. The density of the impressed current ranged between 50 and 500 ÂµA/cm2 with different wetting-drying cycles periods. Corrosion current, and cracking were monitored throughout the accelerated corrosion period to determine the level of damage caused by the development of expansive reinforcement steel corrosion products, appearance of the first crack, and pattern of cracking.The results indicated that the galvanostatic method with wetting-drying sequences can be utilized effectively to simulate the normal corrosion of steel reinforcement in the concrete structure. The usage of different intensities of the current has no influence on the crack pattern. Though, increasing the current level leads to a substantial increase in the crack width due to corrosion of the steel reinforcement in a shorter time.Â Â
Flexural Behavior of Rubberized Reinforced Concrete Beams
Authors: A. Al-Azzawi Adel , Shakir Dalia , Saad Noora
Published: April 2019

In Iraq, the use of rubber waste material in concrete is an interesting topic due to its availability in large volumes. Researches of applications of rubber waste in concrete have been increased since 2003. Many studies carried out to investigate the performance of concrete using different ratios of rubber as a replacement to fine or coarse aggregate. In this research, rubber wastes from scrapped tires have been added as fiber to concrete mix with presence of 0.5% superplasticizer. The flexural behavior of concrete beams, mechanical properties of concrete and workability of concrete mixes have been studied. Rubber fibers ranging from (2-4) mm were added in percentages of 0.5% and 1%) of the cement weight. The results have demonstrated that the addition of rubber material as fibers in natural aggregate concrete enhances its ductility, compressive strength and tensile strength compared to the normal concrete. The effect of rubber fiber content is found to be significant on the behavior of tested beams. If the fiber content increased from 0 to 0.5% the cracking load increased by 60 % and ultimate load increased by 21%. For rubberized concrete, if the fiber content increased from 0.5 to 1.0%, the cracking load decreased 7% and ultimate load increased by 4%.Â Â Â
Technical and Economic Analysis of Efficiency of Electronic Means’ Quality Management
Authors: I. Gorobets A. , S. Novikov A. , Yu. Cheremukhina Yu. , A. Nazarenko mirea M.
Published: April 2019

The requirements for quality assurance of technical and economic analysis of the effectiveness of electronic means at different stages of the life cycle are considered.
Decontamination of Water from Dissolved Pollutants by Special Ceramic (AKP1 & AKP2)
Authors: Abdulrazaq Jassim Sanaa , . .
Published: April 2019

In this study, contaminated water was purified by ceramic purifieres produced from a mixture of Iraqi raw materials. These raw materials were activated kaolinite, Porcelanite, and Limestone. They were mixed with two different mixing pertcentages to produce two types of ceramic (AKP1 and AKP2). Ceramic filters were evaluated based on anumber of parameters that were: hydraulic conductivity, purified water properties, and adsorption ability. Results indicated that ceramics hydraulic conductivity have values 0.0024, and 0.0032 m/hr, respectively. The filtered water were tested for  water quality parameters that the ceramic filters could remove, as an average percentages of removal, 99.9%   to 3.26% by AKP1 and 100% to 64.67%  by AKP2. The adsorption ability of the ceramics for solutes of seven heavy metals, Mn, Fe, Pb, Cd, Co, Cu and Zn,  were measured. Results showed that most of the heavy metals ions were removed by the both types of filters that the removal varies between 98.18 and 100% of the initial concentration of each metal.  The adsorption capacities of each filter to adsorb the heavy metals were computed according to Langmuir model and Freundlich models. The results showed The data were most fitted to Freundlich model.
Power Quality Improvement in Distribution System Using Parallel DSTATCOM
Authors: Alzubaidi Ahmed Mohammed Mohsin , Rao P. V. Ramana
Published: April 2019

DSTATCOM is one among FACTS controllers to reduce harmonic effect in power system. Presence of non-linear loads induces harmonics to source components which in-turn affects other sensitive loads. Parallel custom devices share the compensating currents and as a result stress on individual custom device reduces. This paper presents power quality improvement using parallel DSTATCOM in power distribution system. The parallel DSTATCOM are controlled with a common single control scheme using synchronous reference frame theory. Proposed concept was implemented with MATLAB/SIMULINK software and results were discussed considering different loading conditions of the proposed system like balanced case non-linear load and unbalanced case non-linear load conditions.
Fast Load Voltage Stability Index constrained PMU Placement for Complete Observability
Authors: Narayana P.Lakshmi , Venkatesan M. , Ravindra S.
Published: April 2019

This paper proposes a Fast Load Voltage Stability Index (FLVSI) constrained Binary Integer Programming (BIP) method for Phasor Measurement Unit placement at optimal locations in network to obtain complete observability. Every load bus of network is considered to sort out weak load bus from proposed FLVSI approach. PMUs are constrained to place at weak load buses using BIP approach for observability of network. Zero Injection (ZI) modeling is suggested to reduce PMU placement locations in network. Single line outage or PMU loss constraints are formulated for placement of PMUs. Bus Redundancy Index (BRI) is formulated and considered for every bus of network. With and without ZI modeling under normal and line outage cases is compared to present effectiveness of approach. IEEE –14- 30-and 57- bus networks are tested with MATLAB Programming and compared with other methods to show its effectiveness.
A Web Search Personalization Based on Probability of Semantic Similarity between User Log and Query with Web Page
Authors: Raju Y. , Babu Dr D. Suresh , Anuradha Dr K.
Published: April 2019

Web search personalization is recognized as a competent solution to address the problem of query-relevant search as per the user interest, while it able to present dissimilar search results based upon the preferences and information requirements of users. The popular search engines provide their search results interpreting the user query only, which mostly have unrelated results due to the keywords ambiguity problem. In order to have satisfied and user interesting result, it is important to personalize the results according to their relevancies. In this paper, we propose a Web search Personalization based on a Probability of Semantic Similarity (WP-PSS) between user log and query with search result webpage. It performs a probability of semantic similarities computation between the user query and search result webpage snippet, and compute the frequency of link associated with the log data. Based on these two computed factors a probability of similarities association is computed to group and re-rank the search results for the personalization. Experiment evaluation over a set of multi-domain web searched data collection shows an accuracy improvisation.
Mathematical Modelling of Linear Induction Motor
Authors: Raju M.Naga , Rani M.Sandhya
Published: April 2019

The Linear Induction Motor is a special purpose electrical machines it produces rectilinear motion in place of rotational motion. By using D-Q axes equivalent circuit the mathematical modelling is done because to distinguish dynamic behavior of LIM, because of the time varying parameters like end effect, saturation of core, and half filled slot the dynamic modelling of LIM is difficult. For simplification hear we are using the two axes modelling because to evade inductances time varying nature it becomes complex in modelling, this also reduces number of variables in the dynamic equation. Modelling is done using MATLAB/SIMULINK. LIM can be controlled by using sliding model control, vector control, and position control.
A Review on Regulation of Hybrid Solar Photovoltaic and Wind Drive Coordination
Authors: Pothuraju P. , Venkatesan M.
Published: April 2019

Now a days electrical energy is essential to social development and for the economic growth of any country. Majorly the world facing the power generation problem.  The fossil fuel sourcesare limited and needed to use properly. This huge power generation increases the green house effect.  Hence to overcome  this effect, prefer combined operation of Solar Photovoltaic (SPV)  and Wind power generation systems. Due to high penetration of  SPV  and wind systems in presen tenergy schememighteffectand form many practical issuesparticularly to individual systems and weak grids, with lack of control and ample loading capability. Hence,incorporating both SPV and wind energy systems to form an optimal arrangement, the effect offlexible nature of wind as well as solar energy can partlydeterminedbesides the whole arrangementsuits more efficient and reliable to operation.This paper presents the exploration on control schemes  of combined SPV and wind driveincorporationarrangements. Energy, incidence oscillations and harmonics are significant power quality disputes for grid mode as well as standalone arrangements having hugeeffect in weak networks. Thus can be determined to a hugelevel by having suitable arrangement, innovative reaction techniques with energy storage arrangement and good optimization of both grid onnected and standalone ,hybrid SPV and wind energy systems.
Linear Free Vibration Analysis of Tapered Rectangular Cantilevered Timoshenko Beams using Energy Field Meth-od
Authors: Raffi Shaik Mahmad , Rao Ch. Tirumala
Published: April 2019

Here in this paper we discuss about Energy field method. There are many methods to evaluate the natural frequency of the structures but in this research paper the authors developed a method called “Energy field method” which reduces computational efforts compared with the other methods and which is successfully applied for the Cantilever boundary condition of a tapered (rectangular cross section) Timoshenko beam and calculated the fundamental frequency parameter values and compared the results with existing literature. To confirm the precision, coherence and adaptability of the model these resultant values are also compared with modal structural analysis values in Ansys10 software.