bluuebunny/crossref_metadata_2025 huggingface dataset:
Design of Effective Control Schemes for Binary Distillation Columns
Authors: BENDIB Riad , BATOUT Noual , KHELASSI Abdelmajid
Published: February 2021

Distillation column is very important and high consuming energy equipment in oil refineries, such that 3% of the energy consumption in the world is allocated in distillation column. The fact that let controlling the distillation column an attractive field for researcher, and hence different control schemes are proposed by researchers. In this paper we will provide a comparative study between different control schemes for a binary distillation column two simple configurations (the most known ones) (LV&DV) and two more complicated ones ((L/D,V/B) & Ryskamp’s) we compare them in the basis of interactions and disturbance propagation. The mathematical models for the material balance configurations for the considered configurations are deduced using mathematical transformations (in the paper the general case of transformation between any two configurations is presented), taking the conventional configuration (LV) as a based configuration, the Dynamic Relative Magnitude Criterion (DRMC) is used to assess the interactions and disturbance propagation. The results show that the ratios control schemes are less sensitive to interactions compared with energy balance configuration LV. The same was noticed with DV configuration however other process drawbacks let it not recommended in industrial field.
Automated depandability analysis of the HDPE Reactor using D-higraphs HAZOP assistant
Authors: MECHHOUD El-Arkam , RODRIGUEZ Manuel , ZENNIR Youcef
Published: February 2021

In this paper we present a HAZOP Assistant based on D-higraphs and dedicated to a functional modeling technique that gathers functional and structural information of the process under study. This work is applied to the study of an industrial case - High Density Polyethylene reactor part of the CP2K plant situated in the petrochemical platform of Skikda- and its results are compared with the conventional HAZOP study and SADT method.
Concentric Ring Arrays Optimization Using the Spiral Inspired Technique
Authors: RECIOUI Abdelmadjid
Published: February 2021

In this work, concentric ring Arrays (CRA) with non-uniform excitation are investigated, with the objective being to minimize the Sidelobe Level (SLL) for the array and keep the Directivity within an acceptable value. The optimization technique to be used to reach this objective is the spiral inspired optimization technique.. First, the technique is used to minimize the SLL only. Next the array factor is optimized for Directivity only. Then, the excitation is varied for both SLL and Directivity to be optimized. The results show significant improvements with respect to the uniform case, especially for SLL reduction, with different levels of success depending on the employed optimization technique, fitness function, varied parameters, and array size.
Optimal PSO- PIλDμ Multi -Controller for a Robotic Wrist
Authors: ZENNIR Youcef , MECHHOUD El-Arkam , SEBOUI Ahcene , BENDIB Riad
Published: February 2021

Comparative study between to approach of control based in conventional PID controller and robust Fractional PID controller (FOPID) using PSO algorithm applied to control robotics wrist (Robot RX-90 Staübli). The mathematic model of robot are described follows by design of architecture control. two approximation method of fractional order are used and finally a different simulation study comparative between (PID, PSO-PID, FOPID and PSO-FOPID) with obtained results has been presented discussed and approved the efficiently of the architecture control with PSO-FOPID controller followed by a conclusion and some perspectives for future work.
Improvement of an Adaptive Threshold Technique for Fault Detection in a Cement Rotary Kiln
Authors: KOUADRI Abdelmalek , Ikhlef Boualem , Bensmail Abderazak
Published: February 2021

In this paper, we suggest to use a two-dimensional plot characterizing the statistical variability of a large-sized multivariate data. This graphical representation is based on the mean and variance values. The two statistical parameters plot is used to assess fault detection performances in a cement rotary kiln system. The adaptive threshold technique is shown to result in more accurate and reliable detection. The threshold is established through several repeated experiments under the healthy mode with the same operating conditions. An adequate statistical test is used to examine the validity of the adaptive threshold estimation approach. At each mean’s subinterval for all experiments, a confidence interval closely linked to the distribution frequencies of the variance as a random variable is obtained. In addition, several significance levels are considered to show the performances of the proposed adaptive thresholding technique compared to the limitations of the fixed threshold through the rate of false alarms. Two different experimental faults are considered to demonstrate the effectiveness and accuracy of the adaptive threshold in terms of no false alarms and negligibly small missed alarms in comparison to the fixed threshold technique.
Multi-model system design using H∝ Multi-controllers for a robotic wrist
Authors: ZENNIR Youcef , LARABI Mohand Said , GUECH Elhadi , REZIG Salah Eddine
Published: February 2021

In this paper we present a novel approach of multi-model system design used multi-controllers of Hv control type applied to control robotic wrist. we have presented modeling of our system( nonlinear and linear model) follows by the principal of our approach of control. we have presented Hv control principal used for control nonlinear system and linear local models around each operating points choose . Different simulations are realized in matlab-simulink software improve efficiency of our approach. Finally we have presented conclusion and discussed of obtained results followed by some perspectives for future work.
Humanoid Robot, What is missing?
Authors: BELAIDI Hadjira , BENTARZI Hamid
Published: February 2021

A humanoid robot is now a reality, which has been very developed. It can do almost all tasks that either the human can do or not as well as the dangerous tasks. The researchers recently develop robots, which can see, smell, smile, speak, touch, walk and talk using the more advanced technological tools such as computer aided design. However, these humanoid robots cannot react as human, so what is missing?, what is about the spirit? Does robot have the spirit? This paper answers these questions and presents imperfection of humanoid robot.
Three-phase Three-level Inverter Grid-tied PV System with Fuzzy Logic Control based MPPT
Authors: AYACHI AMOR Yacine , HAMOUDI Frid , KHELDOUN Aissa
Published: February 2021

This paper presents a three phase single stage grid connected photovoltaic PV system. Maximum power transfer from the solar array to grid is ensured by using fuzzy logic (FL) based maximum power point tracking (MPPT) controller. The proposed MPPT technique provides fast and high performances under variable climate conditions as well as sudden variation of irradiance level. Change of measured photovoltaic power and its rate of change are the input variables of the proposed fuzzy logic controller while the change in reference current is deﬁned as the output variable. In order to meet the power quality required by the international standards, a Space Vector Modulation (SVM) controlled three-level T-type inverter and a series LCL filter are used. To show the effectiveness of the proposed grid-connected system, Matlab/Simulink software is used to carry out the simulation part. Obtained results show the role of each component, particularly the response of the maximum power tracking, the quality of the injected power, the unity power factor operation and the system’s efficiency.
Broken Rotor Bars Fault Detection Based on Envelope Analysis Spectrum and Neural Network in Induction Motors
Authors: BENSAOUCHA Saddam , BESSEDIK Sid Ahmed , AMEUR Aissa , SEGHIOUR Abdellatif
Published: February 2021

In this paper, a study has presented the performance of a neural networks technique to detect the broken rotor bars (BRBs) fault in induction motors (IMs). In this context, the fast Fourier transform (FFT) applied on Hilbert modulus obtained via the stator current signal has been used as a diagnostic signal to replace the FFT classic, the characteristics frequency are selected from the Hilbert modulus spectrum, in addition, the different load conditions are used as three inputs data for the neural networks. The efficiency of the proposed method is verified by simulation in MATLAB environment.
Emulation of metamaterial waveguides
Authors: BOURAS Khedidja , LABIAD Abdelhadi , SALEH Chaker , BOUZOUAD Mouloud
Published: February 2021

In this work, we are interested by emulating metamaterial microwave waveguides which behave like conventional metallic ones. We use metamaterial layers based on two types of unit cells. The first one is a connected cross type unit cell which leads to a metamaterial with a near zero refraction index (n1≈ 0). The second one is a disconnected cross type unit cell which leads to a metamaterial with a refraction index greater than unity (n2 >1). With these two type of metamaterials we can define, in the metamaterial layer, different sections each one can have a refraction index equal to n1 or n2. Using these metamaterial layers we can build a metamaterial waveguide. This latter is obtained by stacking a number of layers. The waveguide is obtained by selecting an inner section with a refraction index n2 and an outer section with a refraction index n1 close to zero which plays a similar role as a metallic reflector to form the waveguide.
PMU Optimal Placement in Wide Area Monitoring Systems using Grey Wolf Optimization technique
Authors: AZZOUGUI Y. , RECIOUI A. , MANSOURI A.
Published: February 2021

Wide area monitoring system requires the integration of an advanced technology that provides real time synchronized phase angle measurements at all their measurement points. The phasor measurement units are the most advanced devices to achieve that. The objective of this work is first, to find the optimal placement of a minimum number of PMUs in some standardized IEEE systems. Next, the same method was applied to the Algerian 63 bus system. Two cases are taken into consideration: the minimum number of PMUs without considering the ZIB, then, considering the ZIB. The simulations are carried out using MATLAB/SIMULINK.
BTLBO Based SPMUs Placement Optimization for Fault Observation in Power Grid
Authors: ZITOUNI Abdelkader , BENTARZI Hamid
Published: February 2021

The placement of synchro-phasor measurement units in electric transmission systems has also gained much attention for enhancing the control as well as the protection scheme. In this research work, a binary teaching learning based optimization (BTLBO) algorithm for the optimal placement of synchro-phasor measurement units (SPMUs) is proposed. The optimal PMU placement problem is formulated to minimize the number of SPMUs installation subject to full network observability of the power system buses under fault conditions. The effectiveness of the proposed method is verified by the simulation of IEEE 14-bus benchmark system.
PMU Optimal Placement for Fault Detection in Wide Area Monitoring Systems based on the Drone Squadron Optimization
Authors: DEKHANDJI Fatma Zohra , AZZOUGUI Y. , RECIOUI Abdelmadjid
Published: February 2021

Wide area monitoring systems require the integration of new technologies that provide real time synchronized phase angle measurements. The Phasor measurement units (PMUs) are the most advanced devices to achieve this task so far. The objective of this work is to find the minimum number and optimal placement of PMUs in some standardized IEEE systems. The relatively new drone squadron optimization (DSO) technique is used to solve this problem. Next, fault location is studied based on the measurements collected from these PMUs. The simulations are carried out using MATLAB SIMULINK. The results show that it is possible to achieve the observability of the overall system; however, more PMUs are needed to locate the faults.
RRT-A*-BT approach for optimal collision-free path planning for mobile robots
Authors: Hentout Abdelfetah , Maoudj Abderraouf , Yahiaoui Djelloul , Aouache Mustapha
Published: February 2021

This paper deals with the problem of optimal collision-free path planning for mobile robots evolving inside indoor cluttered environments. Addressing this challenge, a hybrid approach is proposed combining Rapidly-exploring Random Trees (RRT), A-Star (A*) and Back-Tracking (BT) algorithms (RRT-A*-BT). Thus, a vision system is used for a nearly-exact modeling of the environment through image processing. Moreover, each iteration of the basic RRT approach is guided by A* algorithm while trying to take the shortest path linking the robot current position to target . In case of a blockage, BT algorithm is used to get out the robot from this situation. Finally, Piecewise Cubic Hermite Interpolating Polynomial (PCHIP) is used to smooth the generated optimal path. RRT-A*-BT approach is validated through different scenarios; obtained results are compared with previous works on same environments with same conditions. The results prove that RRT-A*-BT is better and faster than other algorithms of the literature, such as Genetic Algorithms and Conventional RRT, in terms of (i) computation time,(ii) path length and (iii) transfer time..
Fuzzy LOPA for the evaluation of accident scenarios and risk reduction measures in suppler manner
Authors: Hellas Mohamed Seddik , Chaib Rachid
Published: February 2021

The analysis and evaluation of risks by the LOPA method requires the presence of certain data and information on the various risk evaluation parameters such as, the frequencies of initiating events, the probabilities failures of the security barriers and also probability of ignition .This data is generally obtained from the history of the system analyzed. In the absence or lack of data on the state of the system, other sources such as databases and expert judgment are used. Despite the fact that the choice of data is made while respecting the adaptation of this data to the system studied, based on its history and on similar systems having the same mode of operation, it seems important to emphasize the fact that imperfections are not properly taken into account. Linked to the data used by the various risk analysis methods including the LOPA method, the results are always uncertain and imprecise. To address such a problem, we use the "fuzzy LOPA" approach. As a case study, we used an operational industrial system which is a heater H-101.
Analysis and Control Design for a Class of Fractional Order Time-Delay Systems
Authors: BOUDANA Marwa , LADACI Samir , LOISEAU Jean Jacques
Published: February 2021

In this paper, we consider a class of fractional order time-delay systems and propose a fractional order control design for their stabilization. The controller parameter’s adjustment is achieved in two steps: first, the relay approach is used to compute satisfactory classical PID coefficients, namely kp, Ti and Td. Then, the fractional orders ʎ and µ are optimized using performance criteria. Simulation results show the efficiency of the proposed design technique and its ability to enhance the PID control performance.
Evaluation of safety barriers deduced from the HAZOP study of fired heater F201-101, ADRAR refinery, Algeria using ETA method
Authors: Naoual BATOUT , BENDIB Riad , ZENNIR Youcef
Published: February 2021

This paper described the method of event tree analysis that is commonly used to identify, characterize and estimate the risk. Quantitative estimates for probability of breach or failure and the resulting consequences can be obtained using event trees. Qualitative depictions of potential failure modes and consequences can also be developed using event trees. An event tree analysis (ETA) is an inductive procedure that shows all possible outcomes resulting from an accidental (initiating) event. An event tree consists of a sequence of interconnected nodes and branches. Each node defines a random variable that represents an uncertain event or state of nature. Branches originating from a node represent each of branches to represent the likelihood for each event or condition. These probabilities are conditional on the occurrence of the preceding events to the left in the tree. Our work includes a HAZOP study to determine the necessary safety barriers as a first step. And as a second step is their evaluation using ETA method of fired heater F201-101, ADRAR refinery, Algeria. This particular method is well suited to estimating the risk stemming from process plant failure. Neither the initiators of industrial accidents nor the layers of protection that prevent them are typically complex, that is, they do not usually require analysis by redundant systems or the time for on-line repair. Thus, they can be accurately characterized with the probability multiplication methods that from the basis of event tree analysis.
Design and Simulation of Graphical User interface for Cables Parallel Robot
Authors: INEL F. , ZENNIR Y. , ADLENE R.
Published: February 2021

In this paper, we have presented the 3D cables parallel robot in pyramid’s form. The dynamic equation has been established including the dynamic behavior, in this context; we investigated to use the Runge Kutta method of 4th order to solving non-linear partial differential equation of our system. The main contribution of this work is firstly: a graphical user interface (GUI) has been developed and implemented based on the geometric model, in order to visualizing the position of end effect or, taking account model uncertainties and payload variation. Secondly, we have studied and solved our system’s dynamical equation with implementation the PD control. This last, applied for different trajectories so as to test the accurate tracking the desired trajectory simulation using MATLAB software. As a result, the simulation tests on this robot verify the efficiency performance of the proposed controller.
Risk Analysis Using HAZOP -Fault Tree - Event Tree Methodology Case Study: Naphta Stabilizer-A Reflux Drum (LPG separation) in RA1K
Authors: Bouasla Seif El Islam , ZENNIR Youcef , MECHHOUD El-Arkam
Published: February 2021

The purpose of this work is the risk assessment of a stabilizer reflux drum using HAZOP - Fault tree - Event tree approach. This risk assessment approach aims first of all to identify potential accident scenarios using Hazard an Operability study (HAZOP), these scenarios need more detailed frequencies estimation, it is performed thanks to fault tree analysis. Then, to analyze events issuing after success or fail of safety barriers, the event tree is used. Finally, in order to better appreciate accident scenarios, ALOHA is utilized to simulate them.
Real-time fractional order system identification using recursive least squares method
Authors: TOUIL Walid , LADACI Samir , CHAABI Abdelhafid
Published: February 2021

In this paper, we address the problem of fractional order systems real-time identification based on recursive least squares technique. The fractional order model is approximated using the Charef Singularity function method and Grünwald numerical approximation for fractional order integral and derivative. We show by numerical simulation example that the identified model represents the original system efficiently.
Hybrid Approach to Design of Two Dimensional Stable IIR Digital Filter
Authors: CHAKER Hichem , KAMECHE Samir
Published: February 2021

In this paper, the magnitude optimization for the design of two dimensional digital filter is attempted and new design method for a two-dimensional (2-D) recursive digital filter is proposed via appropriate genetical swarm optimization with the introduction of the desired stability constraints. The method is tested on a numerical example and the obtained results are presented with previously published methods.
Quantitative Comparative Study of Video Denoising with Optical Flow Estimation in Spatial and Transform Domains
Authors: KHOUDOUR Sofiane , MESSALI Zoubeida , BELKHITER Rima
Published: February 2021

In this paper we establish an extensive quantitative comparative study of patch-based video denoising with optical flow estimation algorithms. Namely, SPTWO, VBM3D and VBM4D algorithms are considered. The aim of this study is to combine these video denoising algorithms in a hybrid proposed process to take advantage of. SPTWO takes advantage of the self-similarity and redundancy of adjacent frames. The proposed hybrid algorithm and the three video denoising algorithms are implemented and tested on real sequences degraded by various level Additive White Gaussian Noise (AWGN). The obtained results are compared in terms of the most used performance criteria for various test cases. The performance criteria computed in this study are: RMSE and SSIM in addition to the running time and visual quality of the sequence video. Experimental results, illustrate that the proposed algorithm and SPTWO provide the best video quality and appear to be efficient in terms of preserving fine texture and detail reconstruction.
Performance Evaluation of Storage Area Network(SAN)With internet Small Computer System Interface (iSCSI)For Local System PC
Authors: AL-aswad Muthanna Mohammad , ALWAJEH KHALIL
Published: February 2021

SCSI is a newly emerging protocol with the goal of implementing the Storage Area Network (SAN) technology over TCP/IP,where enables to access to remote data that in attached storage disks storages - Direct Attached Storage(DAS) over IP-networked. Also it's brings economy and convenience whereas it also raises performance and reliability issues. This paper investigates about possibility , using storage technology of the SANs, and iSCSI-SAN protocol,in local system PC, to improve access to attached storage disks storages in local system, with using iSCSI-SANs as virtual storage, is rather than DAS storage in local system of PC. Explicates after experiment procedure is that improving throughput of iSCSI-SANs was better than attached storage disks storages - DAS in local system . This means is that it can use iSCSI-SANs in local system of PC as attache storage disks storages as DAS , without cost , high performance, and easy control.
ANALYSIS OF THE IMPACT OF SOCIAL MEDIA MARKETING ACTIVITIES IN BRAND LOYALTY WITH BRAND AWARENESS AS INTERMEDIATE VARIABLES (STUDY ON TRAVELOKA BRAND)
Authors: Pasaribu Romindo , Silalahi Andryana
Published: February 2021

Social media marketing is a process of strategy and methods for building the influence, reputation and brand of a company in the community of potential customers, readers, or supporters. Company. The objectives of this study are: (1) To examine the effect of social media marketing activities on brand loyalty on the Traveloka brand? (2) To test the effect of social media marketing activities on brand awareness of brands on the Traveloka brand, and (3) To examine the effect of social media marketing activities on brand loyalty and brand awareness as intermediary variables on the Traveloka brand ?. This study uses a survey method with primary data collection techniques.  The research population is potential customers and the public who have seen social media marketing activities carried out by Traveloka Applications. The results showed that there was a significant influence between social media marketing activity variables on the Traveloka brand loyalty in Medan. There is a significant influence of social media marketing activity variables on the Traveloka brand awareness in Medan. There is a significant influence of social media marketing activity variables on the Traveloka brand awareness in Medan.
ANALISIS YURIDIS HAK DAN KEWAJIBAN WARGA NEGARA ATAS PENDIDIKAN MENURUT UNDANG-UNDANG NOMOR 20 TAHUN 2003 TENTANG SISTEM PENDIDIKAN NASIONAL
Authors: Tambun Sara , Sirait Goncalwes , Simamora Janpatar
Published: February 2021

Education is an important issue and issue that the nation and the state of Indonesian are facing this time. Besides being important, being able to experience education is also a right for everyone. Lack of education in Indonesia can be seen in the Date Release of the Education For All (EFA) Global Monitoring Report 2011: Education Development Index wich UNESCO. Indonesia in year 2011 is 0,934 value is what puts Indonesia at posision 69 of 127 countries in the world. the causes could be the result of this lack of special attention to the aducation of the country to a greater extent in areas that really need  the attention of both the regional and the central goverments and not escape from the role of parents and families in not obstructing an increased education.
PENGARUH PARTISIPASI ANGGARAN DAN MOTIVASI TERHADAP KINERJA PEGAWAI PADA PT. BANK MANDIRI KCP MMU MEDAN PASAR GAMBIR
Authors: Manurung Amran
Published: February 2021

This research was conducted to measure whether budgetary participation and motivation affect employee performance in banking either partially or simultaneously. The research sample was 33 people, where the sample was selected by saturated sampling method. Based on the results of data analysis and testing described in the previous chapter, some conclusions obtained from this study include: (1) Partially, budget participation has a positive and insignificant effect on the performance of employees of PT. Bank Mandiri KCP MMU Medan Pasar Gambir with a regression coefficient of 0.015 and a data significance of 0.946; (2) Partially, motivation has a positive and insignificant effect on the performance of employees of PT. Bank Mandiri KCP MMU Medan Pasar Gambir with a regression coefficient of 0.320 and a data significance of 0.051. This indicates that employees' high motivation to work will achieve a predetermined standard / goal; (3) Simultaneously, budget participation and motivation together have a significant effect on the performance of employees of PT. Bank Mandiri KCP MMU Medan Pasar Gambir where the value of the Simultaneous Test Coefficient (F) is 35,272 with a data significance of 0,000. This means that participation rates and work motivation can affect employee performance results.
PENGARUH KOMPENSASI TERHADAP KINERJA GURU MELALUI MOTIVASI KERJA (STUDI PADA GURU DI LINGKUNGAN PENDIDIKAN YAYASAN PANDU PERTIWI KABUPATEN TANGERANG)
Authors: Saputra Eko Hardi
Published: February 2021

Penelitian ini bertujuan untuk mengetahui pengaruh kompensasi terhadap kinerja guru melalui motivasi kerja di Yayasan Pandu Pertiwi (Permata Insani Islamic School) Tangerang, Banten. Populasi dalam penelitian ini adalah seluruh guru di Sekolah Permata Insani berjumlah 85 orang, sedangkan Sampel dalam penelitian ini dipilih menggunakan teknik sampling jenuh.Jenis data yang digunakan dalam penelitian ini meliputi data primer dan sekunder yang dikumpulkan melalui kuisioner dan dokumentasi. Adapun pengujian hipotesis dilakukan dengan menggunakan Analisis Jalur (Path Analisys).Hasil penelitian menunjukkan bahwa: (1) Nilai koefisien jalur pada pengaruh Kompensasi (X) terhadap Kinerja Guru (Y) adalah sebesar - 0,072, artinya Kompensasi (X) tidak berpengaruh secara signifikan terhadap Kinerja Guru (Y). (2) Nilai koefisien jalur pada pengaruh Kompensasi (X) terhadap Motivasi Kerja (Z) adalah sebesar 0,402, sehingga dapat disimpulkan bahwa pengaruh Kompensasi (X) terhadap Motivasi Kerja (Z) dinyatakan signifikan. (3) Hasil estimasi koefisien jalur dan pengujian hipotesis pada pengaruh Motivasi Kerja (Z) terhadap Kinerja Guru (Y) memiliki nilai koefisien jalur sebesar 0,430 sehingga dapat disimpulkan bahwa Motivasi Kerja (Z) berpengaruh signifikan terhadap Kinerja Guru (Y). (4) Berdasarkan hasil pengujian hipotesis, pengaruh langsung Kompensasi (X) terhadap Kinerja Guru (Y) dinyatakan tidak signifikan. Namun ternyata Motivasi Kerja mampu memediasi Kompensasi (X), yaitu dengan pengaruh secara tidak langsung sebesar 17,3%.Hasil penelitian ini menunjukan bahwa kompensasi tidak akan berdampak siginfikan terhadap kinerja seorang guru tanpa adanya mediasi dari motivasi kerja, hal ini pun tidak berdampak besar pengaruhnya terhadap kinerja.
PENGARUH GAYA KEPEMIMPINAN DAN BUDAYA ORGANISASI TERHADAP KINERJA PEGAWAI MELALUI KEPUASAN KERJA (STUDI PADA RUMAH SAKIT DAERAH LAWANG KABUPATEN MALANG)
Authors: Banendro Kukuh , Setiawan Margono , Susilowati Christin
Published: February 2021

Rumah Sakit Umum Daerah Lawang berawal dari sebuah Puskesmas yang melayani masyarakat secara terbatas. Perkembangan menunjukkan rumah sakit ini tumbuh secara progresif. Secara empiris hal itu dapat diamati dari kinerja organisasi yang meningkat setiap tahun.Penelitian ini menjelaskan variabelvariabel yang menentukan tingkat kinerja pegawai.Tipe penelitian ini adalah penelitian explanatory dengan menggunakan metode pengambilan sampel total sampling atau sensus. Sedangkan hipotesis yang diajukan dalam penelitian ini sebanyak 5 (lima) hipotesis.Teknik analisis data yang dipergunakan adalah statistik deskriptif dan SEM (Structural Equation Model). Temuan utama dari penelitian ini adalah: 1) Budaya organisasi berperan penting di dalam meningkatkan kinerja pegawai baik secara langsung maupun melalui kepuasan kerja; 2) walaupun pengaruh langsung gaya kepemimpinan terhadap kinerja pegawai tidak signifikan, namun pengaruh yang dimediasi kepuasan kerja menunjukkan hasil yang signifikan, 3). budaya organisasi merupakan prediktor di dalam meningkatkan kinerja pegawai.
PENGARUH TANGGUNG JAWAB SOSIAL TERHADAP CITRA PERUSAHAAN PADA TELKOM KANDATEL SURABAYA TIMUR
Authors: Kurniawan Gogi
Published: February 2021

Variabel penelitian terdiri dari variabel bebas yaitu Tanggung Jawab Sosial (X) dan variabel terikat adalah Citra Perusahaan (Y). Populasi dalam penelitian ini adalah peserta Program Kemitraan dan Program Bina Lingkungan selanjutnya dikelola oleh unit yang disebut Community Development Center (CDC) yang merupakan kegiatan tanggung jawab social dari Telkom di Surabaya Timur yang berjumlah 104 orang. Teknik penentuan sampel yang digunakan dalam peneltian ini adalah teknik sensus karena yang diteliti adalah seluruh populasi yang berjumlah 104 orang.Teknik analisa data yang digunakan untuk menganalisis data dalam penelitian iniadalah Structural Equation Modelling (SEM). Pengujian hipotesis dan hubungan kausal, pengaruh langsung [koefisien jalur]diamati dari bobot regresi terstandar, dengan pengujian signifikansi pembanding nilai CR (Critical Ratio) atau P (Probability) yang sama dengan nilai t hitung. Apabila t hitung lebih besar daripada t tabel berarti signifikan.Berdasarkan hasil penelitian danpembahasan, dapat disimpulkan bahwa tidakadanya pengaruh yang diberikan oleh variabeltanggung jawab sosial terhadap citra perusahaan
Gestão Integrada e Controle da Dengue: o papel da comunicação e a perspectiva da Saúde Ambiental
Authors:   Universidade Federal de Uberlândia, Rodovalho Franciele Martins , Pereira Boscolli Barbosa ,   Universidade Federal de Uberlândia
Published: February 2021

Este é um texto crítico, produzido com o intuito de contribuir para o debate acerca da Gestão Integrada do Controle da Dengue, segundo a perspectiva da Saúde Ambiental, com foco nas ações de comunicação em saúde. Nesse sentido, a partir da realização de uma revisão crítica da literatura especializada e da análise de documentos de referência para a Saúde Pública, a presente obra pretende contribuir para superação da tradicional abordagem epidemiológica da Dengue - que ao priorizar um modelo de gestão reativo, investindo a maior parte dos recursos (econômicos e operacionais) em ações de controle vetorial após cada surto ou epidemia - pouco contribui para a prevenção de novos casos. Na mesma direção, enfatizamos a crítica aos modelos de comunicação estratégica e mobilização social para mudança de comportamento, adotados como eixo político para prevenção e controle da Dengue, que culpam e responsabilizam a população. Finalmente, na presente obra, apresentamos e discutimos uma proposta de gestão integrada, que incorpore a perspectiva de análise da influência dos determinantes ambientais, sociais, econômicos e culturais ao panorama epidemiológico atual, para o qual é preciso que o sistema de saúde responda efetivamente.
Kompleks Sistemler ve Veri Bilimi
Authors: ÇETİN Uzay
Published: February 2021

Kompleks Sistemler, kendi kendini örgütleyebilen ve değişen şartlara uyum gösterebilen organik sistemlerdir. Kompleks bir sistem, nispeten basit kuralları takip eden çok sayıdaki etmenin birbiriyle olan yoğun etkileşimi neticesinde ortaya çıkar. Burada asıl olan etmenler değil, onlar arasındaki ilişkilerdir. Kompleks sistem bilimsel bakış açısında yarattığı paradigma değişiminin, çok daha fazlasını derin öğrenme modelleri mühendislik problemlerinin çözümünde yaratmıştır. Katmanlı bir yapıya sahip olan veriye aç bu modellerde, ilk katmanlar en basit öznitelikleri otomatik bir biçimde çıkarırken, sonraki katmanlar hiyerarşik bir biçimde basitten daha karmaşığa doğru üst seviye öznitelikleri çıkarabilme yeteneğine sahiptir. Özel derin öğrenme algoritmaları zamansal ve uzamsal ilişkileri yakalayabilmektedir. Bu çalışmanın amacı veri bilimi, yapay öğrenme ve karmaşık sistemler yaklaşımlarının evreni anlamak için bize birbirini tamamlayan bakış açıları kazandıracağını vurgulamaktır.
Bahasa Indonesia for Foreigners (BIPA) Text Books Challenges to Prepare Students’ Readiness in the Working World
Authors: Kosasih Liana , Leksono Robertus Pujo
Published: February 2021

Education system in Industrial Revolution 4.0 is being challenged to prepare students to be wellequipped with the 21st century skills.In addition to thiscompetitive globalization era, teaching of Bahasa Indonesia as a foreign language has come to the need of conformity of learning material to the working world. This paper will describe the impacts of “Sahabatku Indonesia - BIPA diplomacy material for Thai speaker” textbook to students of year 1 in Naresuan University. The use of learner-centred and teacher-friendly language textbook is still in debate among language teachers, publishers, as well as ministries of education across the globe (Tomlinson, 2012). The finding does not show the relation of learning material in text books to the needs in the working world, however, the findings describe the effectiveness of topical units in the text book that help students to acquire better understanding to the language, Indonesian people and culture, and arouse students’ interests to learn further studies of Indonesia and Bahasa Indonesia, which then in turns will be beneficial forthem in their working world.
DIKSI DAN POLA KALIMAT PADA PUISI ANAK-ANAK DI MAJALAH SAHABAT
Authors: Fadhli M. Adil , Uswati Tati Sri , Mulyaningsih Indrya
Published: February 2021

Poetry is a literary work that uses language and is used to express themselves. Not only adults but also children also create literary works, including poetry. Children's poetry is poetry created by children, or by adults, but intended for children. This research was conducted to determine the form of diction and sentence patterns used in children's poetry on the Sahabat Magazine page. This research is expected to add to the scientific treasures in the field of children's literature learning. The method used in this study is referring to the method of copy, note, and documentation through screenshots, while the method in data analysis uses the equivalent method. The diction form used by children's poetry in Sahabat Magazine is classified as very varied. The number of diction forms used is 11 forms, including synonym, connotative, denotative, concrete, abstract, scientific, popular, general, special, foreign terms, and conversation. However, the use of denotative and concrete diction forms is more dominant than other diction, because all poetry uses the dictions forms. The sentence patterns used are very diverse. In this study found 38 different patterns. Sentence patterns are obtained from sentences that have one clause, two clauses, and no clauses.
Factors Affecting the Pre-service Student Teachers’ Performance in Implementing the Questioning Skills in their Microteaching Practices
Authors: Helda Trisna , Imelwaty Sri , Rahmat Wahyudi
Published: February 2021

before they undergo the real teaching practices at schools. To this end, the study aims are to explore the factors which affecting the pre-service student teachers’ performance in implementing the questioning skills during their microteaching practices. This study employed a case study research design by collecting qualitative data. A small group consisting of 32 pre-service student teachers was interviewed regarding what things affecting their performance in implementing the questioning skills when teaching Bahasa Indonesia, the official language of Indonesia, during their microteaching practices. Thematic analysis was conducted for analyzing the qualitative data. The findings show the internal and external factors affecting their performance in implementing the questioning skills during their microteaching practices. The study findings could inform the improvement of the microteaching practices to increase the pre-service student teachers’ performances
Tindak Tutur Bahasa Indonesia Komunitas Prajurit TNI-AD Rindam XIV/ Hasanuddin Dilihat dari Fungsi Kalimat: Suatu Tinjauan Sosiopragmatik
Authors: Wijayanti Tuti
Published: February 2021

Penelitian ini membahas tindak tutur Bahasa Indonesia komunitas prajurit TNI-AD Rindam XIV/Hasanuddin. Tujuan penelitian untuk mendeskripsikan dan menginterpretasikan tindak tutur antara komunitas prajurit TNI-AD Rindam XIV/Hasanuddin dalam penggunaan Bahasa Indonesia dilihat dari fungsi kalimat secara umum tetapikenyataan di lapangan bahwa karakteristik berbahasa prajurit memiliki pola tertentu. Jenis penelitian ini adalah penelitian deskriptif analisis dengan menggunakan pendekatan kualitatif. Data dalam penelitian ini adalah ujaran yang di dalamnya terdapat fungsi kalimat yang muncul dalam tindak tutur antara komunitas prajurit TNIAD Rindam XIV/Hasanuddin. Sumber data dalam penelitian ini adalah prajurit TNI-AD Rindam XIV/Hasanuddin yang diambil sejumlah 18 orang. Pengumpulan data dalam penelitian ini dilakukan dengan menggunakan teknik perekaman. Analisis data penelitian dilakukan melalui model interaktif yang diperkenalkan oleh Miles dan Huberman. Teknik analisis data dilakukan secara kualitatif. Hasil penelitian menunjukkan bahwaKalimat deklaratif dalam tindak tutur antara komunitas prajurit TNI-AD Rindam XIV/Hasanuddin menuntut mitra tutur untuk memusatkan perhatian dari pembicara, pembicara juga mempunyai otoritas memberikan motivasi, dan nasihat karena kuatnya hierarki kepangkatan dan senioritas di dalam komunitas prajurit TNI tersebut seringkali ujaran tersebut sekaligus menuntut perlakuan, sehingga apa yang diucapkan sekaligus dibarengi dengan perbuatan. Hal ini menjadi sangat menarik, karena tidak semua komunitas sosial dapat melakukan hal tersebut. Kalimat interogatifterdapat indikasi yang sangat tidak baik berkaitan dengan disiplin dan loyalitas ketika kalimat interogatif ini tidak mampu menjembatani komunikasi yang baik.Kalimat imperatif menjadi hal yang tidak dapat ditawar dalam tuturan yang terbangun di komunitas prajurit TNI-AD karena tuturan yang berupa perintah menuntut prajurit untuk tunduk dan taat menjalankannya.
Impact of International Shipping Emissions on Ozone and PM2.5: The Important Role of HONO and ClNO2
Authors: Dai Jianing , Wang Tao
Published: February 2021

Abstract. Ocean-going ships emit large amounts of air pollutants such as nitrogen oxide (NOx) and particulate matter. Ship-released NOx can be converted to nitrous acid (HONO) and nitryl chloride (ClNO2), which produce hydroxyl (OH) and chlorine (Cl) radicals and recycle NOx, thus affecting the oxidative capacity and production of secondary pollutants. However, these effects have not been quantified in previous investigations of the impacts of ship emissions. In this study, a regional transport model (WRF–Chem) revised to incorporate the latest HONO and ClNO2 processes was used to investigate their effects on the concentrations of ROx (RO2+HO2+OH) radicals, O3, and fine particulate matter (PM2.5) in Asia during summer. The results show that the ship-derived HONO and ClNO2 increased the concentration of ROx radicals by approximately two to three times in the marine boundary layer. The enhanced radicals then increased the O3 and PM2.5 concentrations in marine areas, with the ship contributions increasing from 9 % to 21 % and from 7 % to 10 %, respectively. The largest ROx enhancement was simulated over the remote ocean with the ship contribution increasing from 29 % to 50 %, which led to increases in ship-contributed O3 and PM2.5 from 21 % to 38 % and from 13 % to 19 %, respectively. In coastal cities, the enhanced levels of radicals also increased the maximum O3 and averaged PM2.5 concentrations from 5 % to 11 % and from 4 % to 8 % to 4 % to 12 %, respectively. These findings indicate that modeling studies without considering HONO and ClNO2 can significantly underestimate the impact of ship emissions on radicals and secondary pollutants. It is therefore important that these nitrogen compounds be included in future models of the impact of ship emissions on air quality.
Impact of aerosol-radiation interaction on new particle formation
Authors: Zhao Gang , Zhu Yishu , Wu Zhijun , Zong Taomou , Chen Jingchuan , Tan Tianyi , Wang Haichao , Fang Xin , Lu Keding , Zhao Chunsheng , Hu Min
Published: February 2021

Abstract. New particle formation (NPF) is thought to contribute to half of the global cloud condensation nuclei. A better understanding of the NPF at different altitudes can help assess the impact of NPF on cloud formation and corresponding physical properties. However, NPF is not sufficiently understood in the upper boundary layer because previous studies mainly focus on ground-level measurements. In this study, the developments of aerosol size distribution at different altitudes are characterized based on the field measurement conducted in January 2019, in Beijing, China. We find that the partition of nucleation mode particles at the upper boundary layer is larger than that at the ground, which implies that the nucleation processing is more likely to happen in the upper boundary layer than that at the ground. Results of the radiative transfer model show that the photolysis rates of the nitrogen dioxide and ozone increase with altitude within the boundary layer, which lead to a higher concentration of sulfuric acid at the upper boundary layer than that at the ground. Therefore, the nucleation processing in the upper boundary layer should be stronger than that at the ground, which is consistent with our measurement results. Our study emphasizes the influence of aerosol-radiation interaction on the NPF. These results have the potential to improve our understanding of source of cloud condensation nuclei in global scale due to the impacts of aerosol-radiation interaction.
On the Contribution of Fast and Slow Responses to
Precipitation Changes Caused by Aerosol Perturbations
Authors: Zhang Shipeng , Stier Philip , Watson-Parris Duncan
Published: February 2021

Abstract. Changes in global-mean precipitation are strongly constrained by global radiative cooling, while regional rainfall changes are less constrained because energy can be transported. Absorbing and non-absorbing aerosols have different effects on both global-mean and regional precipitation, due to the distinct effects on energetics. This study analyses the precipitation responses to large perturbations in black carbon (BC) and sulphate (SUL) respectively by examining the changes in atmospheric energy budget terms on global and regional scales, in terms of fast (independent of changes in sea surface temperature (SST)) and slow responses (mediated by changes in SST). Changes in atmospheric radiative cooling/heating are further decomposed into contributions from clouds, aerosols, and clear-clean sky (without clouds or aerosols). Both cases show a decrease in global-mean precipitation, dominated by fast responses in the BC case while slow responses in the SUL case. The geographical patterns are distinct too. The intertropical convergence zone (ITCZ), accompanied with tropical rainfall, shifts northward in the BC case, while southward in the SUL case. For both cases, energy transport terms from the slow response dominates the changes in tropical rainfall, which are associated with the northward (southward) shift of Hadley cell in response to the enhanced southward (northward) cross-equatorial energy flux caused by increased BC (SUL) emission. The extra-tropical precipitation decreases in both cases. For the BC case, fast responses to increased atmospheric radiative heating contribute most to the reduced rainfall, in which absorbing aerosols directly heat the mid-troposphere, stabilise the column, and suppress precipitation. Unlike BC, non-absorbing aerosols decrease surface temperatures through slow processes, cool the whole atmospheric column, and reduce specific humidity, which leads to decreased radiative cooling from the clean-clear sky, and is consistent with the reduced rainfall. Examining the changes in large-scale circulation and local thermodynamics qualitatively explains the responses of precipitation to aerosol perturbations, whereas the energetic perspective provides a method to quantify their contributions.
Climatology of migrating and non-migrating tides observed by three meteor radars in the southern equatorial region
Authors: Wang Jianyuan , Yi Wen , Wu Jianfei , Chen Tingdi , Xue Xianghui , Vincent Robert A. , Reid Iain M. , Batista Paulo P. , Buriti Ricardo A. , Tsuda Toshitaka , Dou Xiankang
Published: February 2021

Abstract. We present a study of migrating and non-migrating tidal winds observed simultaneously by three meteor radars situated in the southern equatorial region. The radars are located at Cariri (7.4° S, 36.5° W), Brazil, Kototabang (0.2° S, 100.3° E), Indonesia and Darwin (12.3° S, 130.8° E), Australia. Harmonic analysis was used to obtain amplitudes and phases for diurnal and semidiurnal solar migrating and non-migrating tides between 80 and 100 km altitude during the period 2005 to 2008. They include the important tidal components of diurnal westward-propagating zonal wavenumber 1 (DW1), diurnal eastward-propagating zonal wavenumber 3 (DE3), semidiurnal westward-propagating zonal wavenumber 2 (SW2), and semidiurnal eastward-propagating zonal wavenumber 2 (SE2). In addition, we also present a climatology of these wind tides and analyze the reliability of the fitting through the reference to Whole Atmosphere Community Climate Model (WACCM) winds. The analysis suggests that the migrating tides could be well fitted by the three different radars, but the non-migrating tides might be overestimated. The results based on observations were also compared with the Climatological Tidal Model of the Thermosphere (CTMT). In general, climatic features between observations and model migrating tides were satisfactory in both wind components. However, the features of the DW1, DE3 and SW2 amplitudes in both wind components were slightly different from the results of the CTMT models. This result is probably because tides could be enhanced by the 2006 northern hemisphere stratospheric sudden warming (NH-SSW) event.