bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of Novel Nanocomposite Materials for Enhancing Performance of Thin Film Transistor TFT Model
Authors: Mobarak Youssef Ahmed , Atef Moamen
Published: March 2020

The potential impact of high permittivity gate dielectrics on thin film transistors short channel and circuit performance has been studied using highly accurate analytical models. In addition, the gate-to-channel capacitance and parasitic fringe capacitances have been extracted. The suggested model in this paper has been increased the surface potential and decreased the threshold voltage, whenever the conventional silicon dioxide gate dielectric is replaced by high-K gate dielectric novel nanocomposite PVP/La2O3Kox=25. Also, it has been investigated that a decrease in parasitic outer fringe capacitance and gate-to-channel capacitance, whenever the conventional silicon nitride is replaced by low-K gate sidewall spacer dielectric novel nanocomposite PTFE/SiO2Ksp=2.9. Finally, it has been demonstrated that using low-K gate sidewalls with high-K gate insulators can be decreased the gate fringing field and threshold voltage. In addition, fabrication of nanocomposites from polymers and nano-oxide particles found to have potential candidates for using it in a wide range of applications in low cost due to low process temperature of these nanocomposites materials.
Methods of Assess the Impact of Technological Variables Complex Spatial-Distributed Systems on Costs
Authors: A.M. Korneev , A.M. Shmyrin , T.V. Lavrukhina , L.S. Abdullakh
Published: March 2020

The paper considers the method of calculating costs, taking into account the effect of technological parameters; the model of forecasting of costs of production resources based on the matrix of costs are described; the methods of assess the impact of parameters of complex spatial-distributed systems on costs are presented.
Design of Wireless Acceleration Sensor Nodes Used in Mechanical Equipment Status Monitoring
Authors: Kishore G. Vamshi , Suresh J.
Published: March 2020

Wireless Sensor Network is a new integrated technology, which combines sensor technology, wireless communication technology, Micro-Electro-Mechanical Systems technology and Digital electronic technology. Now, it has been widely used in military, industrial control, environmental monitoring, transportation, and medical. Along with the research evolution on Wireless Sensor Network, its application fields are gradually expanding. It is penetrating deep into each aspect of the human’s production and life, and will be a new revolutionary technology. In this paper, a wireless acceleration node based on wireless single chip processor CC2430, an ARM7TDMI-S core based microcontroller called LPC2478 microprocessor and three-axis acceleration sensor ADXL330 is designed to monitor the mechanical system operation conditions and fault diagnosis with high efficiency. The performance and characteristics of CC2430, ADXL330 and LPC2478 are introduced compactly. The designations of hardware as well as software of wireless network node are introduced in details. The nodes perform steadily and efficiently in practical test, and it can be easily applied to other monitoring areas.
Analysis of Superconducting Fault Current Limiter in DC System with Renewable Energy Sources
Authors: Rayudu S. Sanjeeva , Ganesh C. , Naik B.Vignesh
Published: March 2020

Superconducting fault-current limiters (SFCLs) have been the subject of research and development for many years and offer an attractive solution to the problem of rising fault levels in electrical distribution systems.  SFCLs can greatly reduce fault currents and the damage at the point of fault, and help improve the stability of a power system. Superconducting fault-current limiters (SFCL) provide a  new efficient approach to the reliable handling of such  faults.(SCFLs) can be used for various nominal voltages and currents, and can  be  adapted  to  particular  limiting  characteristics  in  case  of  short  circuits. In this project, dc resistive type superconducting fault current limiter (SFCL) is presented. This SFCL is designed for the HVDC system.  Uniform current and voltage sharing among the SFCL modules can be observed through contact resistance tests, dc flow-through tests, and ac flow-through tests. Results of tests show that each limiting module has good uniformity in higher current system. The proposed concept can be implemented using renewable energy sources. The results are presented by using Matlab/simulink platform.
Classification of Heart Rate Data Using BFO-KFCM Clustering and Improved Extreme Learning Machine Classifier
Authors: Kavitha R. , Christopher T.
Published: March 2020

An Electrocardiogram or ECG is an electrical recording of the heart and is used in the investigation of heart disease. The heart rate varies not only in relation to the cardiac demand but is also affected by the presence of cardiac disease and diabetes. Furthermore, it has been shown that Heart Rate Variability (HRV) may be used as an early indicator of cardiac disease susceptibility and the presence of diabetes. Therefore, the heart rate variability may be used for early clinical screening of these diseases. The generalization performance of the SVM classifier is not sufficient for the correct classification of heart rate data. To overcome this problem the Improved Extreme Learning Machine (IELM) classifier is used which works by searching for the best value of the parameters, and upstream by looking for the best subset of features using Bacterial Foraging Optimization (BFO) that feed the classifier. In this work, nine linear and nonlinear features are extracted from the HRV signals. After the preprocessing, feature extraction is done along with feature selection using BFO for data reduction. Then, proposed a scheme to integrate Kernel Fuzzy C-Means (KFCM) clustering and Classifier to improve the accuracy result for ECG beat classification. The results show that the proposed method is effective for classification of heart rate data, with an acceptable high accuracy.
Federer Measures, Good and Nonplanar Functions of Metric Diophantine Approximation
Authors: Akram Faiza , Liu Dongsheng
Published: March 2020

The goal of this paper is to generalize the main results of [1] and subsequent papers on metric Diophantine approximation with dependent quantities to the set-up of systems of linear forms. In particular, we establish “joint strong extremality” of arbitrary finite collection of smooth nondegenerate submani- folds of .The proof was based on quantitative nondivergence estimates for quasi-polynomial flows on the space of lattices.
Writer Identity Recognition and Confirmation Using Persian Handwritten Texts
Authors: Sheikh Aida , Khotanlou Hassan
Published: March 2020

There are many ways to recognize the identity of individuals and authenticate them and the modern world still is looking for unique biometric features of humans. The recognition and authentication of individuals with the help of their handwriting is regarded as a research topic in recent years. It is widely used in the field of security, legal, access control to systems and financial activities. This thesis tries to examines the identification and authentication of individuals in Persian (Farsi) handwritten texts so that the identity of the author can be determined with a handwritten text, and in the authentication problem, with having two handwritten texts, it is determined that whether both manuscripts belong to a specific person or not. The proposed system for recognizing the identity of the author in this study can be divided into two main parts: one part is intended for training and the other for testing. To assess the performance of introduced characteristics, the Hidden Markov Model (HMM) is used as the classifier; thus, a model is defined for each angular characteristic. The defined angular models are connected by a specific chain network to form a comprehensive database for classification. This database is then used to determine and authenticate the author.
A Novel Analysis of Improving Displacement Factor Using IVDFC in Distribution Systems
Authors: Padmarasan M. , Manikandan C.T. , Karthikeyan N. , Jayaprakash L. , Sekhar C.S. Ajin
Published: March 2020

In this paper discuss the new approach for improving displacement factor using an Interline Dynamic Voltage Restoring and Displacement Factor Controlling Device (IVDFC) in a distribution system. An Interline Dynamic Voltage Restorer (IDVR) is perpetually engaged in distribution systems to mitigate voltage sag/swell problems. An IDVR simply consists of numerous dynamic voltage restorers (DVRs) sharing a common dc link connecting independent feeders to safe electric power to critical loads. The IDVR is operated that it hold the voltage across the critical load bus terminals constant at system nominal frequency irrespective of the changes occurring in source voltages frequency. While one of the DVRs compensates for the local voltage sag in its feeder, the other DVRs reload the common dc-link voltage. For normal voltage levels, the DVRs should be bypassed. Instead of bypassing the DVRs in normal conditions, this paper proposes operating the DVRs, if needed, to improve the displacement factor (DF) of one of the involved feeders. DF improvement can be achieved via active and reactive power exchange (PQ sharing) between different feeders. To successfully apply this concept, several constraints are addressed throughout the paper. The simulation model for this system is developed using MATLAB which is shown that the voltage across the critical load is regulated completely.
Highly effective Security Techniques in OSN Based on Genetic Programming Approach
Authors: Bharadwaj Y.N.S.R. , Sekhar K. Raja
Published: March 2020

Assurance is one of the grinding centers that enhances when trades get mediated in Online Community Techniques (Online Social Networks). Diverse gatherings of utilization innovation specialists have limited the 'OSN security issue' as one of surveillance, institutional or open security. In taking care of these issues they have moreover overseen them just as they were person. We adapt that the elite security issues are caught and that evaluation on genuine feelings of serenity in Online Social Networks would advantage from a more exhaustive method. Nowadays, points of interest systems mean a critical piece of relationship; by losing security, these organizations will decrease a ton of pleasant areas to see as well. The inside motivation behind subtle elements security (Information Security) is risk control. There are a great deal of discovering works and exercises in security danger control (ISRM, for example, NIST 800-30 and ISO/IEC 27005. Regardless, only few works of appraisal focus on Information Security danger diminishment, while the signs depict normal determinations and suggestions. They don't give any use ideas concerning ISRM; truth be told diminishing the Information Security dangers in questionable conditions is cautious. Subsequently, this papers joined an acquired counts (GA) for Information Security danger loss of weaknesses. Finally, the parity of the associated system was broke down through a reflection.
The Empirical Analysis to Enhance Taiwanese Satisfaction in Buying Vietnam coffee
Authors: Le Thi Nham , Wang Chia Nan , Huang Ying Fang
Published: March 2020

Vietnam coffee industry has been well-known over the world for many decades. However, Vietnam products do not meet Taiwan customers’ expectation, it has lead to urgent challenges for the industry. Therefore, the paper proposed the integrated approach by using exploratory factor analysis, reliability analysis and regression analysis. The results of this study were used to formulate and recommend on how to improve the products of Vietnam coffee by using SPSS statistics for analysis. The major findings of this paper was found out that there are six important determinants of Taiwanese decision-making in buying coffee. In order to enhance customer satisfaction with the coffee products from Vietnam, the companies need right strategies to improve these six groups of factors. The paper contributes meaningful and helpful results to the development of Vietnam coffee industry.
Comparison of Modeling and Simulation results Management Micro Climate of the Greenhouse by Fuzzy Logic between a Wetland and Arid region
Authors: Faouzi Didi , Bibi-Triki N. , Draoui B. , Abène A.
Published: March 2020

Currently the climate computer offers many benefits and solves problems related to the regulation, monitoring and controls. Greenhouse growers remain vigilant and attentive, facing this technological development. they ensure competitiveness and optimize their investments / production cost which continues to grow. The application of artificial intelligence in the industry known for considerable growth, which is not the case in the field of agricultural greenhouses, where enforcement remains timid. it is from this fact, we undertake research work in this area and conduct a simulation based on meteorological data through MATLAB Simulink to finally analyze the thermal behavior -greenhouse microclimate energy . In this paper we present comparison of modeling and simulation management of the greenhouse microclimate by fuzzy logic between a wetland  (Dar El Beida Algeria) and the other arid (Biskra Algeria).
Graph Based Workload Driven Partitioning System by using MongoDB
Authors: Sahu Arvind , Ahirrao Swati
Published: March 2020

The web applications and websites of the enterprises are accessed by a huge number of users with the expectation of reliability and high availability. Social networking sites are generating the data exponentially large amount of data. It is a challenging task to store data efficiently. SQL and NoSQL are mostly used to store data. As RDBMS cannot handle the unstructured data and huge volume of data, so NoSQL is better choice for web applications. Graph database is one of the efficient ways to store data in NoSQL. Graph database allows us to store data in the form of relation. In Graph representation each tuple is represented by node and the relationship is represented by edge. But, to handle the exponentially growth of data into a single server might decrease the performance and increases the response time. Data partitioning is a good choice to maintain a moderate performance even the workload increases. There are many data partitioning techniques like Range, Hash and Round robin but they are not efficient for the small transactions that access a less number of tuples. NoSQL data stores provide scalability and availability by using various partitioning methods. To access the Scalability, Graph partitioning is an efficient way that can be easily represent and process that data. To balance the load data are partitioned horizontally and allocate data across the geographical available data stores. If the partitions are not formed properly result becomes expensive distributed transactions in terms of response time. So the partitioning of the tuple should be based on relation. In proposed system, Schism technique is used for partitioning the Graph. Schism is a workload aware graph partitioning technique. After partitioning the related tuples should come into a single partition. The individual node from the graph is mapped to the unique partition. The overall aim of Graph partitioning is to maintain nodes onto different distributed partition so that related data come onto the same cluster.
A Novel CAZAC Sequence Based Timing Synchronization Scheme for OFDM System
Authors: Das Anuja , Mohanty Biswajit , Sahu Benudhar
Published: March 2020

Several classical timing synchronization schemes have been proposed for the timing synchronization in OFDM systems based on the correlation between identical parts of OFDM symbol. These schemes   show poor performance due to the presence of plateau and significant side lobe. In this paper we present a timing synchronization schemes with timing metric based on a Constant Amplitude Zero Auto Correlation (CAZAC) sequence. The performance of the proposed timing synchronization scheme is better than the classical techniques
The Combination of Steganography and Cryptography for Medical Image Applications
Authors: Bala B. Kiran , Kumar R. Sasi
Published: March 2020

To give more security for the biomedical images for the patient betterment as well privacy for the patient highly confidently patient image report can be placed in database. If unknown persons like hospital staffs, relatives and third parties like intruder trying to see the report it has in the form of hidden state in another image. The patient detail like MRI image has been converted into any form of steganography. Then, encrypt those image by using proposed cryptography algorithm and place in the database.
A Novel Handoff Necessity Estimation Approach Based on Travelling Distance
Authors: Madaan Jyoti , Kashyap Indu
Published: March 2020

Mobility management is one of the most important challenges in Next Generation Wireless Networks (NGWNs) as it enables users to move across geographic boundaries of wireless networks. Nowadays, mobile communications have heterogeneous wireless networks offering variable coverage and Quality of Service (QoS). The availability of alternatives generates a problem of occurrence of unnecessary handoff that results in wastage of network resources. To avoid this, an efficient algorithm needs to be developed to minimize the unnecessary handoffs. Conventionally, whenever  Wireless Local Area Network (WLAN) connectivity is available, the mobile node switch from cellular network to wireless local area network  to gain maximum use of high bandwidth and low cost of wireless local area network as much as possible. But to maintain call quality and minimum number of call failure, a considerable proportion of these handovers should be determined. Our algorithm makes the handoff to wireless local area network only when the Predicted Received Signal Strength (PRSS) falls below a threshold value and travelling distance inside the wireless local area network is larger than a threshold distance.Through MATLAB simulation, we show that our algorithm is able to improve handover performance.
Design and Analysis of an Improved Nucleotide Sequences Compression Algorithm Using Look up Table (LUT)
Authors: Arya Govind Prasad , Bharti R.K. , Prasad Devendra
Published: March 2020

DNA (deoxyribonucleic acid), is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. The information in DNA is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T). With continuous technology development and growth of sequencing data, large amount of biological data is generated. This large amount of generated data causes difficulty to store, analyse and process DNA sequences. So there is a wide need of reducing the size, for this reason, DNA Compression is employed to reduce the size of DNA sequence. Therefore there is a huge need of compressing the DNA sequence. In this paper, we have proposed an efficient and fast DNA sequence compression algorithm based on differential direct coding and variable look up table (LUT).
Vision Based Approach to Sign Language Recognition
Authors: Gupta Himanshu , Ramjiwal Aniruddh , T. Jose Jasmin
Published: March 2020

We propose an algorithm for automatically recognizing some certain amount of gestures from hand movements to help deaf and dumb and hard hearing people. Hand gesture recognition is quite a challenging problem in its form. We have considered a fixed set of manual commands and a specific environment, and develop a effective, procedure for gesture recognition. Our approach contains steps for segmenting the hand region, locating the fingers, and finally classifying the gesture which in general terms means detecting, tracking and recognising. The algorithm is non-changing to rotations, translations and scale of the hand. We will be demonstrating the effectiveness of the technique on real imagery.
Physical Properties and Compressive Strength of Zinc Oxide Nanopowder as a Potential Dental Amalgam Material
Authors: Qosim Nanang , Murdanto Putut , Puspitasari Poppy
Published: March 2020

In this study, the application of nanotechnology was applied in the dentistry field, especially in the innovation of dental amalgam material. To date, mercury (Hg) has been used widely as dental amalgam material with consideration of the cheap price, ease of use, and good mechanical strength. However, last few years, many problems have been faced in the dentistry field due to the use of mercury. Hence, new material is needed as an innovation to eliminate the mercury from dental amalgam composition. This research was conducted to analyze the physical properties and compressive strength of zinc oxide (ZnO) nanopowder as a potential dental amalgam material. The physical properties such as morphology and dimensions were analyzed by SEM and XRD. Further, the compression test was conducted by using hydraulic press machine. The results showed that the ZnO nanopowder analyzed has the particle size of 14.34 nm with the morphology classified as nanorods type. On the compression load of 500 kg, the average of ZnO green density is 3.170 g/cm3. This value experienced the increase of 4.763% when the load was set to 1000 kg, and 7.539% at 2000 kg. The dwelling time also took the same effect. At 30 seconds, the average of ZnO green density is 3.260 g/cm3. This value experienced the increase of 0.583% at 60 seconds and 3.098% at 90 seconds.
Mobile Learning Technologies
Authors: Alsaadat Khalil
Published: March 2020

Technological development  have altered the way we communicate, learn, think, share, and spread information. Mobile technologies are those that make use of wireless technologies to gain some sort of data. As mobile connectedness continues to spread across the world, the value of employing mobile technologies in the arena of learning and teaching seems to be both self-evident and unavoidable The fast deployment of mobile devices and wireless networks in university campuses makes higher education a good environment  to integrate learners-centered m-learning . this paper discusses mobile learning technologies that are being used for educational purposes and the effect they have on teaching and learning methods.
Molecular techniques applied to investigations of abundance of the ammonia oxidizing bacteria and ammonia oxidizing archaea microorganisms in the environment
Authors: Ginawi Amjed , Yunjun Yan
Published: March 2020

This review shows regards of the recently experienced concerning the environments of ammonia oxidizing bacteria (AOB), ammonia oxidizing archaea (AOA) microorganisms, and denitrifying microbes. The advancements of molecular biology techniques have encouraged staggeringly to the fast recent developments in the sector. Various methods for implementing so are discussed. The function of AOB, AOA, and denitrifying microorganism composition was investigated through a high throughput of the 16S rRNA amplicon sequencing protocol. There is potential to observe the specific species appearance of these microorganisms in each environment and get to the evaluated relative abundance of several kinds. There is information indicated which the structure of denitrifying and nitrifying group was monitored field to significant fluctuations and the complexes, together in space and in time. More effort is required to enhance and isolate those microorganisms that common of the progressions and to function them through the compound of molecular techniques, biochemical and physiological. However, the investigation with deoxyribonucleic acid (DNA), antibodies, and the polymerase chain reaction (PCR) was preferred mainly to report the composition of chemolithoautotrophic bacteria, surveys of their characteristics in environmental that needed quantification at the transcriptional level is presently not available.
Frequency control of islanded microgrid using fuzzy-PI and autotuned controllers
Authors: Kaushal Jitender , Basak Prasenjit
Published: March 2020

Any mismatch between generation and demand causes frequency to deviate from nominal value which affects the microgrid operation and reliability of power flow. The load frequency changes abnormally, which is fuzzy in nature, due to low system inertia and unpredictable variation in wind and solar irradiance level. So a frequency controller is needed to solve this problem meeting generation and demand of an islanded microgrid system considering the fuzziness in frequency fluctuation. This paper presents a case study of a hybrid microgrid system consisting of PV system, wind turbine generator set, diesel generator set along with storage facility and equipped with a proposed fuzzy-PI controller for frequency control under islanded condition. This controller shows satisfactory steady-state response. Further, performance of the proposed fuzzy-PI controller is verified with that of an autotuned PI controller to get faster response. The change in frequency is found minimum in case of autotuned PI controller as compared to fuzzy-PI controller. The proposed fuzzy-PI controller is validated based on ITAE (4-7%) which is higher than that attained form autotuned-PI controller. The developed model is simulated in Matlab/Simulink environment in this case study.
Frequency regulation of modern power system using novel hybrid DE-DA algorithm
Authors: Sinha Sayantan , Mallick Ranjan Kumar
Published: March 2020

An attempt has been made to regulate the frequency of an interconnected  modern power system using automatic generation control under a restructured market scenario. The system model considered consists of a thermal generation plant coupled with a gas turbine plant in both areas. The presence of deregulated market scenario in an interconnected power system makes it too vulnerable to small load disturbance giving rise to frequency and tie line power imbalances. An attempt has been made to introduce a novel Tilted Integral derivative controller to minimize the frequency and tie line power deviations and restrict them to scheduled values. A maiden attempt has been made to tune the controller gains with the help of a novel hybrid optimization scheme which includes the amalgamation of the exploitative nature of the Differential evolution technique and the explorative attributes of the Dragonfly Algorithm. This hybrid technique is therefore coined as Differential evolution- dragonfly algorithm (DE-DA) technique. Use of some standard benchmark fucntions are made to prove the efficacy of the proposed scheme in tunig the controller gains. The supremacy of the proposed TID controller is examined under two individual market scenarios and under the effect of a step load disturbance. The robustness of the controller in minimizing frequency deviations in the systems is broadly showcased. The superiority of the controller is also proved by comparing it with pre published results.
Performance evaluation and comparison of diode clamped multilevel inverter and hybrid inverter based on PD and APOD modulation techniques
Authors: Susheela N. , Kumar P. Satish
Published: March 2020

The popularity of multilevel inverters have increasing over the years in various applications without use of a transformer and has many benefits. This work presents the performance and comparative analysis of single phase diode clamped multilevel inverter and a hybrid inverter with reduced number of components. As there are some drawbacks of diode clamped multilevel inverter such as requiring higher number of components, PWM control method is complex and capacitor voltage balancing problem, an implementation of hybrid inverter that requires fewer components and less carrier signals when compared to conventional multilevel inverters is discussed. The performance of single phase diode clamped multilevel inverter and hybrid multilevel inverter for seven, nine and eleven levels is performed using phase disposition, alternate phase opposition disposition sinusoidal pulse width modulation techniques. Both the multilevel inverter are implemented for the above mentioned multicarrier based Pulse Width Modulation methods for R and R-L loads.  The total harmonic distortion is evaluated at various modulation indices. The analysis of the multilevel inverters is done by simulation in matlab / simulink environment.
Solar energy storage and release application of water-phase change material- (SnO2-TaC) and (SnO2–SiC) nanoparticles system
Authors: Rashid Farhan Lafta , Hadi Aseel , Ali Abid Ammar , Hashim Ahmed
Published: March 2020

The thermal energy  storage and release application of water- phase change material- (SnO2-TaC) and (SnO2–SiC) nanoparticles system has been investigated for cooling and heating applications. The water - polyethylene glycolwith (SnO2-TaC) and (SnO2–SiC) nanoparticles have been used. The results showed that the melting and solidification times for storage and release of thermal energy of water - polyethylene glycoldecrease with increase in(SnO2-TaC) and (SnO2–SiC) nanoparticles concentrations. The melting and solidification times decrease with increasing of TaC nanoparticles concentrations to water-polyethylene glycol/SnO2nanofluidand SiC nanoparticles concentrations to water-polyethylene glycol/SnO2nanofluid.
A novel impedance source fed H-type flying capacitor multilevel inverter
Authors: Balamurugan Chinnapettai Ramalingam , Vijayakumar P. , Sengolrajan T.
Published: March 2020

In this paper, simulation using MATLAB/SIMULINK is performed with
bipolar triangular fixed amplitude multi-carrier Phase Disposition (PD)
PWM strategy with sine wave, Third Harmonic Injection, 60 degree Pulse Width Modulation and stepped wave reference for the chosen impedance Source based H-Type flying capacitor Multilevel Inverter (ISBH-Type FCMLI). The root means square value of the fundamental component and Total Harmonic Distortion of the output voltage which are the most important performance indices for the chosen inverter topologies are evaluated presented and compared for various references through duty ratios. From the simulation results it is observed that for various references the THD is almost similar but the root mean square value in terms of voltage is more for THI, 60 degree PWM and stepped wave reference with phase disposition strategy. The results are obtained for ma (amplitude modulation index) < 1 (under amplitude modulation index), ma=1 (normal amplitude modulation index) and ma > 1 (over amplitude modulation index).
The effect of e-cigarette and a conventional cigarette to the alveolus on Wistar male rats
Authors: Nurpangestu Budian , Kharimah Yusrotun , Linggasati Fita , Bahrudin Moch
Published: March 2020

Smoking can cause a variety of diseases one of them on pulmonary organs, e-cigarettes are also considered to be safer than conventional cigarettes and the number of smokers in Indonesia is increasing every year. The purpose of this study to determine differences in pulmonary alveolar damage in male rats (Rattus norvegicus Wistar strain) on electric cigarette smoke exposure and conventional cigarettes. This research is true experimental with post-test only control group design. Male rats were used as many as 25 rats were divided into 5 groups, namely the group P0 as a negative control group; P1 group was exposed to clove cigarettes; P2 group is exposed to a filter cigarette; P3 group was exposed to e-cigarette 0mg; P4 group exposed the e-cigarette 3mg. Samples were treated for 30 days. Data were analyzed using Kruskal Wallis with p <0.05. The results showed that there were significant differences in alveolar damage in the fifth group (p = 0.003). With Mann Whitney shows that groups P1, P2, P3, and P4 there are no significant differences. The conclusion of this study is there is no difference in alveolar damage on Wistar male rats by e-cigarettes and conventional cigarettes exposure.
Real time simulation of sensorless control based on back-EMF of PMSM on RT-Lab/ARTEMIS real-time digital simulator
Authors: Idir Abdelhakim , Ahriche A. , Khettab K. , Bensafia Y. , Kidouche M.
Published: March 2020

Real-time simulation (RT) is very useful for rapid prototyping of complex and expensive systems using the high performance of a multiprocessor system. It has many applications in the field of testing controllers and protection systems under real conditions. In this article, Real-time simulations results of sensorless control of permanent magnet synchronous motor (PMSM) are presented. This simulator consists of two major subsystems, software with a Matlab / Simulink and hardware including FPGA boards for data acquisition, control boards and sensors. The two subsystems were coordinated together to achieve the simulation RT. To estimate the rotor position, a sliding mode observer (SMO) based on back emfs of the motor was implemented. The stability of the proposed method was verified using the concept of Lyapunov. A real-time system based on FPGA, is used for implementing and testing the algorithm for rotor position estimation based on back-emf tracking.
Real power loss reduction by dolphin swarm algorithm
Authors: Lenin Kanagasabai
Published: March 2020

In this work Spinner Dolphin Swarm Algorithm (SDSA) has been applied to solve the optimal reactive power problem. Dolphins have numerous remarkable natural distinctiveness and living behavior such as echolocation, information interactions, collaboration, and partition of labor. Merging these natural distinctiveness and living behavior with swarm intelligence has been modeled to solve the reactive power problem. Proposed Spinner Dolphin Swarm Algorithm (SDSA) has been tested in standard IEEE 14,300 bus test system and simulation results show the projected algorithm reduced the real power loss extensively.
Intrusions detection using optimized support vector machine
Authors: Moukhafi Mehdi , Yassini Khalid El , Seddik Bri
Published: March 2020

Computer network technologies are evolving fast and the development of internet technology is more quickly, people more aware of the importance of the network security. Network security is main issue of computing because the number attacks are continuously increasing. For these reasons, intrusion detection systems (IDSs) have emerged as a group of methods that combats the unauthorized use of a network’s resources. Recent advances in information technology, specially in data mining, have produced a wide variety of machine learning methods, which can be integrated into an IDS. This study proposes a new method of intrusion detection that uses support vector machine optimizing optimizing by a genetic algorithm. to improve the efficiency of detecting known and unknown attacks, we used a Particle Swarm Optimization algorithm to select the most influential features for learning the classification model.
Simbolismo e modernismo na ilustração literária de Harry Clarke
Authors: Nunes Fabricio Vaz
Published: March 2020

Este trabalho aborda a obra do artista irlandês Harry Clarke (1889-1931), buscando demonstrar a especificidade dos aspectos simbolistas e decadentistas presentes na sua ilustração literária, marcada pela influência do ilustrador inglês Aubrey Beardsley e diretamente ligada ao contexto nacionalista do Irish Revival e do movimento Arts and Crafts irlandês. Como ilustrador, Clarke foi um intérprete, no meio visual, de textos essenciais para o simbolismo de língua inglesa, como A balada do velho marinheiro, de Samuel Taylor Coleridge e os Contos de mistério e imaginação de Edgar Allan Poe, incluindo a poesia nacionalista e medievalizante da primeira fase de William Butler Yeats. Por outro lado, afastando-se do simbolismo profético de Yeats, Clarke também ilustrou textos que problematizavam a dimensão nacionalista do Irish Revival, como a polêmica peça The playboy of the western world, do dramaturgo irlandês John Millington Synge. A análise das relações estabelecidas entre as ilustrações, os textos literários e o seu contexto cultural caracteriza a obra de Harry Clarke como manifestação de um decadentismo tardio dentro do qual eclodem aspectos marcadamente modernos, presentes nas imagens deformantes e insólitas criadas para a edição de 1925 do Fausto de Goethe.
Como se escrevia a história no século XVII
Authors: Cerqueira André Sekkel , Megiani Ana Paula Torres
Published: March 2020

Durante a Época Moderna, o gênero histórico passou a ter um papel relevante na configuração do Estado, sobretudo no processo da Restauração portuguesa na segunda metade do século XVII. Este artigo apresenta uma reflexão acerca das práticas de composição dessas narrativas e o uso das regras ditadas nas preceptivas, em específico as de Cabrera de Córdoba, Agostino Mascardi, San José e Le Moyne. Nesse sentido, o texto trata da maneira como letrados portugueses teceram suas obras utilizando os tratados sobre o gênero histórico.
Por uma revolução branda no campo
Authors: Queler Jefferson José , Zangelmi Arnaldo José
Published: March 2020

Este artigo pretende explorar possíveis relações entre a história da imprensa e a história dos movimentos sociais no campo no Brasil. Para tanto, analisará uma série de reportagens de Antonio Callado sobre o Nordeste e as Ligas Camponesas publicadas no jornal Correio da Manhã, em 1959, e reunidas no livro Os industriais da seca e os “galileus” de Pernambuco um ano depois. Tal obra tem sido desde então tomada por historiadores e cientistas sociais como fonte central de informações para o estudo daquele período. Entretanto, essas matérias ainda não receberam um estudo específico que procure esclarecer suas condições de produção e seus objetivos políticos. Desse modo, esta análise pretende, ao levar em conta as referidas matérias em seu suporte original e os editoriais do Correio da Manhã que as comentaram, deter-se sobre essas questões. Isso talvez permita avaliar o papel das escolhas individuais de Callado e das forças sociais que convergiram para a confecção daquelas reportagens, bem como alguns dos significados do vocabulário político presente nelas.
New records of Gymnopogon doellii (Poaceae, Chloridoideae, Cynodonteae, Hubbardochloinae), a Brazilian endangered species

Authors: VINÍCIUS-SILVA RONALDO , DE PAULA CLÁUDIO COELHO , SARAIVA DIOGO FELCAR
Published: March 2020

We report new occurrence records of Gymnopogon doellii in Brazil, based on collections from the Ferruginous Campos Rupestres (rocky outcrops) of Minas Gerais state, in the southeastern region of the country. This native grass had been previously reported in Brazil only from Cerrado areas of Minas Gerais and Goiás states and the Federal District. According to the IUCN criteria, the species is endangered. Within the genus, G. doellii is distinguished by having short rhizomes, indistinct leaf blade midveins, ligules with a fringe of hairs and acuminate glumes twice the size of the floret. We provide photographs of individuals in the field, an illustration with details of the species morphology and an updated geographic distribution map.
Lampranthus alboroseus (Ruschioideae, Aizoaceae), a new species from the mountains of the Western Cape, South Africa

Authors: KLAK CORNELIA , HELME NICK , BRUYNS PETER V.
Published: March 2020

A new species―Lampranthus alboroseus―is described from the summits of two mountains in the Southern Cederberg of the Western Cape Province. Florally it resembles L. antonii but differs in having a creeping and mat-forming habit and in its overall smaller size. The creeping habit is shared with L. reptans which, however, develops noticeably longer pedicels.
Distinguishing Characteristics of Spring and Summer Onset El Niño Events
Authors: Xu Hua , Xu Jianjun , Liu Chunlei , Ou Niansen
Published: March 2020

El Niño events can be classified into two categories according to the onset time: the spring (SP) El Niño with onset time from April to June and the summer (SU) El Niño with onset time from July to October. The SP El Niño is a basin-scale phenomenon and is closer to the conventional ENSO. It goes through the earlier and stronger heat build-up process, and the earlier occurrence of westerlies in the equatorial Pacific, which can partly explain its earlier onset time. For SU El Niño, in contrast, the anomalous signals, such as SSTAs, zonal wind anomalies, and subsurface variations, are much weaker, which can be attributed to the weaker accumulation of warm water and shorter duration of positive Bjerknes feedback. During its peak phase, anomalous southeasterlies over the eastern Pacific enhance the wind–evaporation–SST (WES) feedback and impede the development of positive SSTAs there, and then lead to a west shift of SSTA center. Recharge/discharge processes exist in both types of events but are weaker in the SU type, which may be caused by the lack of meridional Sverdrup transports as a result of weak zonal wind anomalies. A heat budget analysis demonstrates that the relative importance of thermocline (TH) and zonal advective (ZA) feedbacks in SP and SU El Niño is different. In SP El Niño, the TH feedback is dominant compared to ZA feedback in both the GODAS and SODA datasets. In SU El Niño, however, these two terms are equally important in GODAS, but not in the SODA dataset.
Avoiding Us versus Them: How Schools’ Dependence on Privileged “Helicopter” Parents Influences Enforcement of Rules
Authors: Calarco Jessica McCrory
Published: March 2020

As privilege-dependent organizations, U.S. public schools have an interest in catering to higher-SES White families. But, what happens when privileged families’ interests conflict with schools’ stated goals? Focusing on the case of homework, and drawing insights from organizational theory, cultural capital theory, and research on parent involvement in schools, I examine how schools’ dependence on higher-SES White families influences their enforcement of rules. Using a longitudinal, ethnographic study of one socioeconomically diverse public elementary school, I find that teachers wanted to enforce homework rules, but they worried doing so would lead to conflict with the higher-SES White “helicopter” parents, on whom they relied most for support. Thus, teachers selectively enforced rules, using evidence of “helicopter” parenting to determine which students “deserved” leeway and lenience. Those decisions, in turn, contributed to inequalities in teachers’ punishment and evaluation of students. Broadly, these findings suggest privilege-dependence leads schools to appease privileged families, even when those actions contradict the school’s stated goals. These findings also challenge standard policy assumptions about parent involvement and homework, and they suggest policies aimed at reducing the power of privilege are necessary for lessening inequalities in school.
Limits and Virtues of Educational Technology in Elementary School Mathematics
Authors: Christopoulos Athanasios , Kajasilta Henri , Salakoski Tapio , Laakso Mikko-Jussi
Published: March 2020

The vast development and expansion of educational technology has led to the deconstruction of various barriers and challenges that the traditional approaches were incapable of overcoming. However, a field that still holds a great deal of interest and needs to be strengthened concerns the practices that surround mathematics education. Digital learning tools can provide a partial solution to this problem. In this study, we introduce a curriculum-driven digital practicing tool which accommodates diverse learning styles and educational needs. The representative sample of the pilot included 135 third-grade primary school students, randomly split in two groups, who participated in the 8-week experiment. The findings suggest that the digital practicing path can facilitate the development of subject mastery and increase the accuracy of arithmetic fact calculations. In addition, the use of learning analytics tools can facilitate the knowledge acquisition process and prevent learners from developing misconceptions toward the learning subject.
A Survey of Educational Provisions for the Institutionalized Mentally Subnormal Blind
Authors: Boly Louis F. , Deleo Gertrude M.
Published: March 2020

A survey of the educational provisions for the blind mentally subnormal was conducted with 52 of the 104 state institutions replying to the mailed questionnaire.

The results of the survey indicate considerable variation between institutions in terms of the number of blind in residence, educational provisions, existing curricula and educational activities, and underlying philosophies regarding the abilities and needs of this population.
Partnership: Of the Blind with the Agency for the Blind — on Behalf of the Agency —
Authors: Magill Arthur N.
Published: March 2020

Editor's Note: Two papers read at the 1957 convention of the AAWB described the cooperative relationship between an organization of the blind and the (national, private) agency for the blind in Canada that should be the envy of blind people and agency people in the United States. Arthur N. Magill, superintendent of the Ontario Division of the Canadian National Institute for the Blind, speaks in the first article from the point of view of the agency. Norma E. Hughes, secretary-general of the Canadian Council of the Blind, speaks in the succeeding article from the point of view of the organization of the blind.
Extension of Public Welfare Medical Care: Issues of Social Policy
Authors: Glasser Melvin A.
Published: March 2020

Health of mind and body is so fundamental to the good life that if we believe that men have any personal rights at all as human beings, then they have an absolute moral right to such a measure of good health as society and society alone is able to give them.

—Aristotle, Politics
Visual Function in Geriatric Eye Disease
Authors: Faye Eleanor E.
Published: March 2020

□ As older people become visually impaired, the aging process itself becomes more of a problem. If they live alone and are left to their own devices, they may not seek help. Much, however, can be done by a community which is aware of the importance of finding these individuals in the early stages of their disease. Once discovered, they can be assisted in retaining their ability to read, to do close work, and to get around independently. Through the use of the many new methods of treatment and more sophisticated optical aids, most older people with a visual impairment can enjoy the restoration of at least a part of their vision and can be helped to continue functioning independently as long as possible.
A Survey of the Vocational Placement of Visually Handicapped Persons and Their Degree of Vision
Authors: Dickey Thomas W. , Vieceli Louis
Published: March 2020

□ To get an indication of the occupational areas in which visually handicapped clients are being placed, the range of visual acuity among those being placed, and the kinds of questions employers were asking during job development interviews, 225 questionnaires were mailed to graduates of the Placement Counselor Training Program at Southern Illinois University. Useable questionnaires were returned by 77 counselors who placed a total of 1,733 clients in 18 specified occupational areas and in the category “other” during the period July 1, 1968, through April 15, 1970. The occupational area, “industrial” showed the largest numbers of placements (600), with self-employment (191) second, and clerical (160) third. With respect to vision, 43.4 percent of those placed had visual acuity of 20/200 or better, 42.9 percent had 20/200 or less but not totally blind, and 13.7 percent were totally blind. Among the legally blind persons, 24.3 percent were totally blind, a figure which closely approximates the 25.5 percent of totally blind persons in the legally blind population who are 20-60 years of age.
Career Opportunities for Visually Handicapped Persons in Maryland
Authors: Clayton Isaac P.
Published: March 2020

In 1972, the Maryland School for the Blind conducted a survey of employers in the state to determine how many blind persons were employed (and in what kinds of jobs) and employer attitudes toward hiring the handicapped. Former students of the school were surveyed to determine their feelings about the vocational education they received at the school and their suggestions for changes and improvements. Using this data, a pilot vocational education program was planned. Later phases of the project will include establishing the pilot program in the school and, based on that experience, setting up a comprehensive vocational education center there.