bluuebunny/crossref_metadata_2025 huggingface dataset:
Efecto de las sales solubles del suelo sobre las reflectancias de los cultivos y sus implicaciones en el diseño experimental.
Authors: Paz Pellat Fernando , Palacios Sánchez Luis Alberto , Ramírez Ayala Carlos
Published: October 2018

La salinización de suelos agrícolas es uno de los factores limitantes de la agricultura moderna, por lo cual la comprensión de los efectos de este fenómeno es interés en las ciencias agrícolas. La capacidad de predicción de su avance y su monitoreo continuo permiten tomar decisiones correctas para un aprovechamiento sostenible del recurso suelo. En el presente trabajo se analiza el espacio espectral de las reflectancias de los cultivos, con énfasis especial en el caso de suelos cubiertos totalmente por cultivos en el contexto de los patrones espectrales del crecimiento. Partiendo de los efectos de la salinidad en los cultivos, se introduce el modelo bifásico de Munns y Termmat adaptándolo para el caso de espacios espectrales de la reflectancia del dosel de un cultivo. El modelo fue parcialmente validado con datos de experimentos (soya y cebada) publicados en la literatura. Del análisis de los patrones de tolerancia del experimento de cebada, resulta claro que es necesario realizar estas estimaciones bajo condiciones estandarizadas de estados de desarrollo. Los diferentes patrones de senescencia de los cultivos, inducidos por los tratamientos de salinidad, dif icultan la tarea de establecer un patrón estándar de comparación para los rendimientos y biomasas aéreas. Los resultados obtenidos son alentadores y abren una nueva forma de analizar el efecto de la salinidad sobre los cultivos, reduciendo fuertemente los costos y tiempos implicados en los diseños experimentales convencionales, mostrando que existe una ruta muy simple para obtener resultados similares a un experimento convencional de tratamientos de salinidad.
Patrones espectrales de la fenología del desarrollo vegetativo y reproductivo de arboles de huizache (Acacia farnesiana (L.) Willd.).
Authors: Casiano Domínguez Marcos , Paz Pellat Fernando
Published: October 2018

La escala BBCH es ampliamente adoptada en todo el mundo para la descripción de las etapas de desarrollo del crecimiento de varios cultivos de importancia económica, pero nunca se ha desarrollado una descripción detallada de las etapas de crecimiento fenológico en huizache (Acacia farnesiana (L.) Willd.) al mismo tiempo que se le da seguimiento con sensores remotos. El objetivo principal de este trabajo fue analizar los patrones espectrales y temporales de la fenología del desarrollo vegetativo y reproductivo (solo floración) del huizache (Acacia farnesiana (L.) Willd.). Se dio seguimiento temporal a 11 árboles de huizache localizados en el parque urbano de “La presa San José”, San Luis Potosí, México. Las mediciones espectrales se realizaron en los segmentos del rojo (660 nm) e infrarrojo cercano (830 nm) que fueron los insumos para el índice normalizado de Vegetación para Floración y Follaje (IVFFn) propuesto por Casiano y Paz, al tiempo que se obtuvieron estadios fenológicos en la escala numérica BBCH. Los patrones fenológicos se analizaron en los espacios IVFFn-Tiempo, BBCH-Tiempo e IVFFn-BBCH. En los dos primeros espacios, los resultados mostraron una línea vertical donde se localizan los estadios del rápido desarrollo vegetativo sin estadios de floración como el patrón recurrente. El desarrollo vegetativo y floración como suceso simultáneo de estadios, se exhibe en un plano inclinado. En el espacio IVFFn-BBCH se logró establecer una clara relación entre las diferentes etapas fenológicas incluyendo la floración de huizache (Acacia farnesiana (L.) Willd.) y los índices de vegetación, lo que aporta evidencia de campo del alcance del IVFF y su relación con los estadios fenológicos en la escala BBCH, que permiten plantear un esquema para la modelación de los fenoestadios para A. farnesiana (L.) Willd. a partir de datos espectrales.
Adoptability of Lean Construction Techniques in Pakistan’s Construction Industry
Authors: Memon Aftab Hameed , Akhund Muhammad Akram , Laghari Abdul Nasir , Imad Hafiz Usama , Bhangwar Shadab Noor
Published: October 2018

There is a philosophy in the construction industry to reduce the cost of a project by reducing construction waste and improving productivity. With lower expenses, lean construction emphasizes the cost of the project at a minimum cost. Globally, the philosophy has gained a wide range of popularity in the construction sector. The Lean Construction has helped practitioners with several tools and techniques to implement at different stages of a construction project. Following global trends, this study has investigated lean practices in Pakistan. With the potential advantages experienced by its implementation in Pakistan's construction projects and the level of implementation of various types of tools and techniques has been analyzed. To achieve the goal, the study had tried to capture construction projects in which four shareholders are being represented, which are clients, consultants, contractors and material suppliers. Overall 34 completed questionnaires were collected and then analyzed. The results of the analysis have indicated that pull approach, standard of work, time consuming, visualization tools, the integrated project delivery methods and the quality failure in safe limits are common lean techniques which are being implemented to the local construction industry. While there are major benefits of waste reduction, client satisfaction, better communication, visual control and proper task management to build appropriate work are the key benefits of lean construction.
THE INFLUENCE OF THE INLET ANGLE OVER THE RADIAL IMPELLER GEOMETRY DESIGN APPROACH WITH ANSYS
Authors: SANDA BUDEA , DANIELA CARBUNE VARZARU
Published: October 2018

This paper presents in brief an own application (numerical code) for quick design of the turbo machines impellers. Based on this numerical method, this paper analyses the influence of the blades’ angles on the radial impeller geometry from the centrifugal pumps: the influence of the inlet and outlet angles of the blades over the hydraulic channel size, over the number of the blades and over the blades’ angular extension. In centrifugal pumps design, a special attention must be given of the impeller inlet and outlet angles. These influences include also the pump efficiency, for 1-2 percent.
The impeller design methods starting from the pump flow, the head, the rotation speed and ranging blades inlet and outlet angles, gives completely the impeller geometry - the suction and discharge diameters of the impeller, the number of blades and the size and shape of the hydraulic channel and estimates the efficiency for centrifugal pumps.
Once the impeller geometry established, the dates were imported in ANSYS code, for graphical design and 3D visualization of the radial impeller, also for the streamlines flowing visualization.
PRECISE ROTARY TABLE INDEXING SYSTEM USED ON MILLING MACHINING CENTRES
Authors: FUNARU MARIAN , STAN GHEORGHE , MIHAILA LUCIAN , PASCU MARIUS , ANDRIOAIA DRAGOS
Published: October 2018

Growing performance demands in the mechanical manufacturing field have lead to a great development of the machine tools domain, regarding especially the productivity and the manufacturing precision. When equipping a machine tool with an automatic tool changer and an automatic pallet mechanism, the obtained result is a machining center. For small series products, milling machining centers fulfill the precision and productivity requirements, through the advantages of a reduced auxiliary time and reduced operating errors. This paper presents a new technical solution of the rotary table indexing mechanism used on milling machining centers, which offers a very high positioning precision, by using a curvic coupling and a hydraulically driven table clamp/unclamp mechanism.
DAMAGE AND FRACTURE MECHANICS CONCEPTS IN CALCULATING CYCLICALLY LOADED PRESSURE EQUIPMENT
Authors: IORDĂCHESCU (NICOLOF) VALI-IFIGENIA , SIMA TEODOR
Published: October 2018

In the history of technology there occurred many accidents caused by the presence and propagation of cracks in a mechanical structure, especially cracks in weld seams or already existing in the material. The paper evaluates the damage caused by cracks, the superposition of effects by using fracture mechanics concepts (the stress intensity factor, the contour integral and the crack tip opening displacement), while in the case of superposition fracture modes I and II , the relation was checked against the experimental literature data.
THE INFLUENCE OF THE RECYCLED POLYMERIC MATERIALS VISCO-ELASTICITY ON THE PIPE EXTRUSION HEAD DESIGN
Authors: TEODORESCU NICOLETA , ŞTEFĂNESCU MARIANA-FLORENTINA , RUSSU MIHAIL , TĂNASE ELENA-BEATRICE
Published: October 2018

There are summarized the experimental researches, previously performed, concerning viscous-elastic characteristics changes of PP due to recycling. There are presented, comparatively, the results for the virgin and 10 times recycled polypropylene. Using CAD-CAM it is studied the influence of the PP viscous-elastic characteristics changes due to recycling on the pipe extrusion head design, aiming to obtain a good extrusion product (expressed in the given case by the pipe dimensions stability). It resulted that it is compulsory to do experimental research to obtain the actual viscous-elastic properties of the polymer after many times recycles, because these properties affect significantly the output and the annular uniformity of the pipes thickness.
PARTICLE SIZE DISTRIBUTION OF WHEAT GRIST FRACTIONS IN PLANSIFTER COMPARTMENTS OF A FIVE BREAKS ROLLER MILL SYSTEM
Authors: VOICU GHEORGHE , CONSTANTIN GABRIEL-ALEXANDRU , STEFAN ELENA-MĂDĂLINA , VOICU PAULA
Published: October 2018

In wheat milling, it is particularly necessary that the grist particle size-distribution entering and exiting each plansifter compartment of the wheat mill to be determined so that the appropriate geometrical characteristics of flutes, grinding rolls and their functional parameters can be chosen and the characteristics of the sieves braids to be established to optimize flour, middling, and semolina yield and quality of them. The paper presents the particle size-distribution of wheat going through each break, in a five-break roller mill system with a capacity of 4.2 t/h and equipped with a semolina sorting compartment (divisor). The particle size distribution data where fit to the Rosin-Rammler distribution equation.
STUDY OF A GENERAL USE GREASE RHEOLOGICAL BEHAVIOUR INFLUENCE ON LUBRICATION
Authors: TEODORESCU NICOLETA , PRODEA IULIANA-MARLENA , ŞTEFĂNESCU MARIANA-FLORENTINA
Published: October 2018

The paper presents the rheological behavior of a MP multifunctional grease (additived, for EP, containing Li and Ca soaps– for general use), experimentally obtained on the THERMO-HAAKE Viscotester VT550, as  correlations, at different temperatures, between 15-60oC. It results a strong non-Newtonian behavior, with threshold, time depending (tixotropy or rheopexy, depending on the operating conditions). With the aid of the rheological parameters, obtained from the experiments, it is analyzed the influence on a ball bearing frictional coefficient  in the contact zone ball-inner ring, in the case of the elasto-hydrodynamic-lubrication (EHL).
HEAT TRANSFER THROUGH MINI AND MICRO CIRCULAR CHANNELS OF CPU’S COOLING SYSTEMS
Authors: PĂTULEANU LILIANA , MANOLACHE-RUSU IOAN-COZMIN , ANDRONIC FLORIN , RADION IVAN
Published: October 2018

The cooling systems of the CPU have in their competence mini and micro-channels whose performances at intensifying the thermal transfer have been discovered and proved. It is justified the interest in studying the shape of these components, their possibilities of manufacture, the phenomena that occur in channels of small dimensions and processes of heat transfer. The current article aims to realize a brief presentation of mini and micro-channels situated inside the cooling system of the CPU, while in the second part is proposed a calculation model for heat transfer in circular mini and micro-channels. In the case of the analyzed channel, it is realized the modeling of the process of heat exchange in micro-channels. The used model is validated by comparison with numeric results obtained by authors in specialized literature.
NUMERICAL SIMULATION OF LAMINAR FORCED CONVECTION AIR FLOW IN A RECTANGULAR VENTURI CHANNEL
Authors: WENDSIDA IGO SERGE , N’WUITCHA KOKOU , OUEDRAOGO ISSAKA , BATHIEBO DIEUDONNE JOSEPH , ZEGHMATI BELKACEM
Published: October 2018

In this work, a laminar forced convection air flow in a rectangular vertical venturi has been numerically simulated. Mathematical transformation has been used to transform the irregular profile of the venturi wall into straight line. Transfers equations are solved using finite volume method, Gauss and Thomas algorithms. A computing algorithm has been generated for the problem simulation. Hydrodynamics and thermals effects are investigated in detail. Results are presented as velocity and streamlines patterns, and temperature profiles.
THE VARIATION OF THE STRESSES IN THE AREA OF DIAMETER CHANGE IN GAS PIPELINES
Authors: FRĂŢILĂ MARCU
Published: October 2018

The paper presents an analysis of the variation of stresses at a gas pipeline in a geometric discontinuity zone of the diameter. The analysis was performed by assimilating the pipe area with variable diameter with an axially symmetric structure loaded with internal pressure. Stresses were determined using the method of moments, theory for axially symmetrical structures. The analysis was performed according to a set of parameters that define the geometry of a joining between a conical frustum and a cylinder and the loading mode with internal pressure. Efforts and stresses were determined in the meridian direction and in the circumferential direction adjacent coatings combining the two axially symmetries.
INFLUENCE OF THE GRANULAR MIXTURE PARTICLES SIZES AND OSCILLATION FREQUENCY ON THE SEPARATION PROCESS AT THE CONICAL SIEVES WITH OSCILLATING MOVEMENT
Authors: VOICU GHEORGHE , STOICA DOREL , CONSTANTIN GABRIEL ALEXANDRU , CARP-CIOCÂRDIA CRAITA , ŞTEFAN ELENA MĂDĂLINA
Published: October 2018

The paper presents the results of experimental researches on the working process and his efficiency for a sieve with external conical surface with alternative periodic motion. The sieve is suspended at the top and bottom with three elastic threads (of silk), with thread diameter f1.5 mm and is provided with circular apertures of f4.2 mm. Vibratory motion was obtained with an eccentric mechanism, placed horizontally and acting on tangential direction to the sieve at adjustable distance. . Was thus obtained amplitude oscillation of 3.58, 3.74, 3.91 and 4.10 mm. The oscillation frequencies used were 250, 520 and 790 osc/min. The sieve was used for sorting of canola seeds having sizes between f1.25 mm and f2.5 mm, in percent of 95 %.

It was found that seeds are separated closer to the feeding point of sieve the more so as the oscillation frequency is smaller. Seeds of a size less than 1.5 mm is separated close to the axis of rotation. Also, the sieve orifices can properly calibrate a seeds mix for all oscillation frequencies analyzed.
FLUVIAL LANDFORMS SEEN AS CAUSES OF THE DANUBE FLOODS CASE STUDY: OLTENITA - CALARASI SECTOR
Authors: GRIGORIE (OMRANI) ŞTEFANIA , GRECU FLORINA
Published: October 2018

The aim of this paper is to analyze the fluvial landforms and to identify the main factors that influence the Danube floods. In this respect, we have performed a short analysis of the morphological and morphometric elements of the Danube Floodplain from the Oltenita - Calarasi area, of the wetlands and a correlation between these and the floods that have been cause. Finally, the current situation of embankments was assessed. For understanding the causes of floods in the studied area, two aspects should be taken into consideration: the morphometric and morphologic properties of the floodplain (low altitudes, low slope, low roughness) and human intervention (drainage of the lakes and wetlands, harnessing measures like irrigation and drainage channels, lack of embankments rehabilitation).
THE IMPACT OF MANGALIA HARBOUR’S BREAKWATERS ON THE SHORE AND CLIFF IN “2 MAI-VAMA VECHE” COASTAL AREA
Authors: SUNAI GELMAMBET
Published: October 2018

The paperwork is part of a substantiation study about the current state of the NW Black Sea coastal area and it consists in the establishment of a reference database regarding hydrotechnical structures, the existing coastal protections, their impact and the identification of risk areas. A high-risk area is “2 Mai - Vama Veche” region, located in The Southern Romanian Coastline, due to the sharp beach erosion and the cliffs instability that endanger nearby buildings. The coastal protections, the offshore breakwaters, the industry development in the coastal region and the construction of storage lakes and dams in the river basins have influenced the conditions in which The Romanian Coast is found nowadays.
KINEMATICS OF MECHANISM WITH ROTATING CAM AND FLAT FACE OSCILLATING FOLLOWER. PART I: ANALYTICAL SOLUTIONS
Authors: ALACI STELIAN , CIORNEI FLORINA CARMEN
Published: October 2018

The paper aims to analyze the kinematics of the mechanism with rotating cam and oscillating flat face follower. Compared to the knife edge follower, which has a fixed contact point on the follower, the flat face follower presents a mobile contact point with respect to the follower, with complex kinematics. Additionally, the tangency constraint between cam and follower makes difficult the position analysis. The analysis is made in two manners: the geometrical restraint method and the vector-contours method. Both methods offer the same solution, but the actual expressions differ considerably. There are obtained the position angle, the angular velocity and angular acceleration of the follower and the position, velocity and acceleration of the contact point with respect to the follower
KINEMATICS OF THE V MECHANISM USED FORELECTRIC SWITCHERS BASED ON SPECIALISED SOFTWARE
Authors: PĂUN ANTONESCU , LIVIU-MARIAN UNGUREANU , COSTANTIN BREZEANU
Published: October 2018

This paper is representing a continuing research of the doctoral thesis "Geometrical analysis and synthesis of mechanisms in the electrotechnical field". Using two Mathcad programs as mathematics analysis software and Solidworks as graphical analysis software it is dimensioned the new kinematics scheme of the high voltage V mechanism. Kinematic analysis is based on the mathematical model presented in the doctoral thesis mentioned above and graphical modeling and analysis is conducted to compare and complete the research regarding the V mechanism triadic chain 5R + T type.
ENVIRONMENTAL SYSTEM ENGINEERING (ESE): MODELING AND OPTIMIZATION OF A TEXTILE EFFLUENT DISCOLORATION PROCESS BY SORPTION
Authors: CARMEN ZAHARIA
Published: October 2018

Nowadays, an interdisciplinary field of engineering that focuses on analytical and/or empirical models represented by mathematical, data-driven and biotic structures combined with physical, biological and ecological processes in water, air and eco-systems is developing, i.e. environmental system engineering (ESE). In this system, environmental modeling and process optimization acts together for solving problems with environmental systems, especially for minimizing pollution, or eco-toxicological effects.

The present paper proposes the study of modeling and optimization of an environmental system (i.e. textile wastewater treatment system based on sorption onto indigene peat) for its discoloration (consequently, decreasing of color, organic and inorganic loads of effluent discharged in aquatic receptor, or inside reused). All performed laboratory tests consisted in 22 hours-sorption experiments onto peat applied for a real colored textile effluent, organized with respecting of an empirical planning by a central active composite rotatable 23 order design, considering as independent variables the peat dose (X1), pH (X2), and temperature (X3), and as optimization criterion, or decision function, the discoloration degree, or color removal (Y, [%]). The mathematical model was found adequate for the textile wastewater treatment, and the optimal operational conditions for highest discoloration efficiency were proposed.
COMPARATIVE ASSESSMENT OF ROAD RATING SYSTEMS
Authors: OLUFIKAYO ADERINLEWO
Published: October 2018

In this study, three road rating systems were assessed and compared after
carefully applying them to five major road case studies. The essence of these rating systems
is to provide a consistent, reasonably objective and systematic approach for establishing
priorities and scheduling and budgeting roadway rehabilitation requirements. The
effectiveness of these systems was measured during the road condition survey and
compared with one another. The most effective system out of the three was determined
based on the different types and severity levels of pavement distresses identified for the five
different routes.
TEORETHICAL EVALUATION OF ANTHROPOGENIC RISKS IN TAZLAU RIVER BASIN
Authors: BIBIRE LUMINITA , BARBIERU MIHAELA-BEATRICE , BARSAN NARCIS , GHENADI ADRIAN STELIAN
Published: October 2018

In the Tazlau Basin there was a really strong anthropogenic impact. Many areas have almost totally been deforested, the grazing and agriculture have extensively and irrational been practiced, underground reserves have been exploited, too etc. The expanding of settlements along the rivers and building of modern communication routes along beds favored the phenomena of flooding and destruction of hydraulic works. These all aspects led to frequent occurrence of risk events: erosions, landslides, degradation of the rivers beds, pollution of air, water, vegetation, soil, etc. The paper identifies anthropogenic risk factors from Tazlau Basin, and proposes analyzes of the consequences and the measures to avoid these ensuing consequences.
INFLUENCE OF ACOUSTIC FREQUENCY ON BEAN GERMINATION AND GROWTH PROCESS
Authors: MOȘNEAGA ALISA , NEDEFF VALENTIN , LOZOVANU PETRU
Published: October 2018

In this work, research findings on processing bean seeds with sound waves in the range 0-9 kHz are presented. The process of germination has been examined for seeds soaked in heat treated water and plain water. In the initial stage, the conditions necessary to stimulate plant growth were created. The paper describes the experimental setup and the sound wave seed treatment procedure. The characteristics of the seed germination process were determined and compared with those of the control sample germination.
INFLUENTIAL PARAMETERS DURING PRESSURE RELIEF EXPOSED IN WORKING CHAMBER OF HYDRAULIC CYLINDER PRESS
Authors: ŽIVKOVIĆ MILUTIN
Published: October 2018

Relieving volumes, which were under pressure, with all the controls on the distribution and management of oil supply, may lead to the occurrence of the hydraulic impact, which is especially distinct in hydraulic presses. For these reasons, high speed unloading compression volume is the main cause of this phenomenon. This paper provide practical guidance for the design and calculation of important design parameters usually embedded devices - hydraulic command check valves (HCCV) (nominal size, pressure and decompression time) and the possibility of determining performance requirements using, from literature, the expressions and the nomograms.
NUMERICAL ANALYSIS OF EFFECTS OF HYDRAULIC GRADIENT ON MASS FLUX OF SALTWATER INTRUSION IN COASTAL AQUIFERS
Authors: ADEGOKE JAMES A. , POPOOLA OLATUNDE I. , FALUY OLUDOTUN O.
Published: October 2018

Coastal aquifers are distinguished from other aquifers because of saltwater intrusion effects, which cause contamination of groundwater in coastal regions. This study addressed the significance of hydraulic gradient and porosity of the coastal aquifers on contaminant transport of saltwater. Results showed hydraulic gradient of the aquifer has significant impact on the contaminant transport in coastal aquifer. When the hydraulic gradient between freshwater and saltwater is high and directed toward the sea, diffused rate of saltwater into the groundwater would be low. Therefore, hydraulic head of freshwater in coastal aquifer must be maintained at high level to control saltwater intrusion.
NONLINEAR PROPERTIES OF BARIUM TITANATE CERAMICS
Authors: LAZAROV IVAYLO , ZHEGLOVA ANKA
Published: October 2018

The materials based on barium titanate have nonlinear dependence of polarization on the intensity of the electrical field. The properties of those materials are used when different automation elements such as primary converters, phase regulators for low and high frequencies, sensors, modulators etc. are derived. Ceramics based on barium titanate (BaTiO3) alloyed with H3BO3 and Bi2O3 have been derived and researched. The influence of the temperature of sintering on the values of the dielectric permittivity on the structural properties has been determined. The influence of the quantity of the added material on the temperature dependencies and the non-linear properties of the ceramics have been analyzed. Both legation additives decrease the sintering temperature. However, the values of the dielectric permittivity decrease while the non-linear properties of the doped barium titanate (BaTiO3) improve. The coefficient of non-linearity reaches its maximum for the H3BO3 composites, synthesized at temperature of 1100 oC. 
DETERMINATION OF BACKPACK MASS LIMIT FOR STUDENTS IN A UNIVERSITY IN ABEOKUTA, SOUTHWESTERN NIGERIA
Authors: ISMAILA SALAMI OLASUNKANMI
Published: October 2018

The aim of this study was to use the Froude number to determine the mass of the backpack that a student should carry in tertiary institutions. A model was developed using the Froude number with leg length and power of the students as inputs.  It was established that a student in tertiary institutions should carry a backpack with a mass of at most 10 % of the body mass. Similar studies are recommended for primary and secondary schools.
NITRATO ADDUCTS AND DERIVATIVES: SYNTHESIS AND INFRARED STUDY
Authors: DIOP MOUHAMADOU BIRAME , DIOP LIBASSE
Published: October 2018

Five new nitrato adducts and derivatives have been synthesized and studied by infrared spectroscopy. The suggested structures are discrete or of infinite chain type, the nitrate behaving as a bidentate or a monodentate ligand, the environment around the tin (IV) centres being octahedral or trigonal bipyramidal. When extra hydrogen bonds are considered supramolecular architectures may be obtained.
SISTEM PENDETEKSI POLA TAJWID AL-QUR’AN HUKUM MAD THABI’I (MAD ASLI) PADA CITRA MENGGUNAKAN METODE SOKAL & MICHENER
Authors: Amani Yasir , Syahputra Ilham , Siddiq Dian
Published: October 2018

Al-Qur’an merupakan kalam Allah SWT yang diturunkan melalui Malaikat Jibril diberikan kepada Nabi Muhammad SAW yang dijaga kesucian dan keasliannya sampai akhir zaman dan juga sebagai sumber utama umat islam untuk menjalankan kehidupannya. Kita sebagai umat islam wajib mempelajari dan memahami apa saja isi-isi yang terkandung didalam Al-Qur’an. Dalam konteks sehari-hari banyak orang kesulitan dalam menemukan hukum tajwid di dalam Al Quran. Oleh karena itu, sistem pendeteksi tajwid diperlukan untuk membantu pengguna menemukan tajwid di dalam Al Quran. Dalam penelitian ini, Metode Sokal & Michenerdigunakan untuk menghitung jarak kemiripanpola tajwid pada citra Al Quran. Hasil pengujian menunjukan bahwa keakuratan sistem ini sebesar84.85%.Persentase detection rate tersebut menunjukkan Metode Sokal & Michener dapat digunakan sebagai salah satu pendekatan untuk pendeteksian tajwid pada citra Al Quran. Sistem ini memiliki beberapa kelemahan yaitu memiliki false positive rate, dapat dilihat pada unjuk kerja dari sistem pendeteksi tajwid ini, proses keakurasiannya dapat dilakukan dengan memberikan pelatihan lebih lanjut dengan tambahan data training yang lebih banyak dan lebih bervariasi. Walaupun begitu, sistem deteksi tajwid ini tidak menafikan pentingnya guru dalam belajar cara baca sesuai dengan hukum-hukum tajwid yang benar.
Eriophyoid Mites (Acari: Eriophyoidea) on Fruit Trees in Yalova, Turkey
Authors: Denizhan Evsel
Published: October 2018

This study was conducted to determined Eriophyoid (Prostigmata: Acari)
mites on fruit trees of Yalova (Çınarcık,
Armutlu, Termal, Esenköy, Çiftlikköy) in 2016-2017 years. These
specieses are Aceria avanensis (Bagdasarian 1970), Colomerus vitis (Pagenstecher
1857), Aculus schlechtendali (Nalepa 1890), A. fockeui (Nalepa
and Trouessart 1891), Calepitrimerus baileyi (Keifer 1938), Epitrimerus pyri (Nalepa 1891) Phytoptus
avellana (Nalepa 1889) and Aceria diospyri (Keifer
1944). A. diospyri is
new record for Turkish Acaro fauna.
Modeling Relative Risk Assesment for Infected Plants by Eriophyoid Mites (Acari, Prostigmata) Using Poisson Log Linear Regression Model
Authors: Yeşilova Abdullah , Denizhan Evsel , Çobanoğlu Sultan
Published: October 2018

In Poisson regression, the dependent variable of
the mite population relative risk assessment can be estimated as based on
countable data. Due to disappearing data and numerous uncountable values of the
mite population it became difficult to evaluate the risk factor by linear
regression methods. The assessment of variable features of mites
depending on conditions is very suitable for Poisson regression modeling
system. In the this study, the occurrence of rare events such as the occurrence
ratio of infected plants was defined by eriophyid mites on two wheat varieties
and four different localities. The study was constructed by two way possibility table depending on plant
varieties (Triticum aestivum L. and Secale cereale L. (Poaceae) with four locations (Muradiye, Ahlat, Erciş, Doğu
Beyazıt and Iğdır). The reference parameters were Triticum aestivum for varieties, and Muradiye for location,
respectively. The risk assessment of infected plants for Secale cereale is 1.245 times higher as compared to Triticum
aestivum and this difference was found statistically significant
(p<0.05). The risk of infected plants for Iğdır location is 1.101 times
higher as compared to Muradiye location (p>0.05). In the Poisson log-linear regression, the dependent variable is a
risk ratio or a relative risk can be estimated as well as countable data. Thus,
Poisson log-linear regression model is a very effective method for analysis of
two-way contingency table. Two-way contingency table is created considering the
eriophyid mite infection ratio depending on location and varieties,
respectively.
Clinical Research
Authors: Rhythm Indonesian Heart
Published: October 2018

Abstracts of the 6th Annual Scientific Meeting of the Indonesian Heart Rhythm Society

Jakarta, 21-22 September 2018

Original Articles
La participación en redes escolares locales para promover la mejora educativa, un estudio de caso
Authors: Hernández de la Torre Elena , Navarro Montaño María José
Published: October 2018

Resumen:La participación de los centros en redes escolares para impulsar y consolidar la mejora y la innovación, promoviendo el trabajo colaborativo entre el profesorado, tiene la finalidad de trabajar con compromiso y cooperación entre profesionales. Este estudio de caso tiene como objetivo analizar las aportaciones que realiza la participación de 9 centros de una misma localidad en una red escolar, constituida, principalmente, para para que el profesorado trabaje de forma conjunta en el planteamiento de propuestas escolares que faciliten el tránsito del alumnado del nivel de primaria al de secundaria. La recogida de datos se ha basado en una metodología participativa y colaborativa que combina instrumentos de recogida de datos, entrevistas tanto individuales como en grupos focales a asesores de estos centros educativos de la zona y al coordinador de la red y cuestionarios abiertos individuales a asesores, directores de centros y profesorado participante. Respecto a las conclusiones, destacamos que la participación en redes escolares ha favorecido la construcción de una nueva configuración organizativa intercentros e incluso en el propio centro, la adjudicación de responsabilidades, experiencias en colaboración, acuerdo de estrategias de trabajo entre los centros, así como una reflexión sobre su funcionamiento basado en los principios de cooperación y compromiso entre todos. Abstract: The participation of schools in school networks to promote and consolidate improvement and innovation, promoting collaborative work among teachers, aims to work with commitment and cooperation among professionals. This case study aims to analyze the contributions made by the participation of 9 centers of the same locality in a school network, constituted, mainly, so that teachers work together in the proposal of school proposals that facilitate the transit of the school. students from primary to secondary level. The collection of data has been based on a participatory and collaborative methodology that combines data collection instruments, interviews both individual and in focus groups with advisors of these educational centers in the area and the coordinator of the network and individual open questionnaires to advisors, directors of centers and participating teacher. Regarding the conclusions, we emphasize that participation in school networks has favored the construction of a new organizational configuration intercentros and even in the center itself, the allocation of responsibilities, experiences in collaboration, agreement of work strategies between the centers, as well as a reflection on its operation based on the principles of cooperation and commitment among all.
El vínculo de la escuela con el territorio: una experiencia de inclusión educativa
Authors: Lozano Martínez Josefa , Ballesta Pagán Francisco Javier , Castillo Reche Irina Sherezade , Cerezo Máiquez Mª Carmen
Published: October 2018

Resumen:Desde los principios de interculturalidad e inclusión la participación ciudadana y la vinculación al territorio de la escuela se consideran elementos clave para la gestión de la diversidad. El presente artículo recoge algunos resultados de un proyecto de investigación de ámbito nacional (1)que muestra una práctica educativa desarrollada en un centro de Educación Infantil y Primaria de la Región de Murcia cuyo objetivo ha consistido en establecer la vinculación de la escuela con personas del Centro de Mayores del barrio a través de las narraciones de sus experiencias de vida al alumnado. Para ello, se ha utilizado como instrumentos de recogida de información la observación no participante y los grupos de discusión llevados a cabo a diversos actores. El análisis de resultados se ha realizado atendiendo a categorías, previamente definidas, que nos indican que existe una percepción positiva de la cultura colaborativa por parte de los sectores educativos participantes, que la práctica ha supuesto un enriquecimiento para todos, pues ha conllevado trabajar conjuntamente en el centro al tiempo que se ha resaltado en el alumnado la importancia de escuchar las historias de vida de las personas mayores y les ha acercado más a sus abuelos. Además, los logros han fomentado el compromiso ciudadano de mayor participación por parte de las personas del Centro de Mayores del barrio. Abstract: From the principles of interculturality and inclusion of citizen participation and the link to the territory of the school are regarded as key elements for the management of diversity. This article contains some results of a research project at the national level that shows an educational practice developed in an Infant and Primary Education Center in the Region of Murcia, whose aim has been to establish the link between the school with people of the Center of the neighborhood through the stories of their life experiences for the students. To do this, it has been used as instruments for the collection of information discussion groups carried out a variety of actors. The analysis of results has been carried out according to pre-defined categories, which indicate that there is citizen participation and a positive perception of the collaborative culture on the part of the educational agents participants, while the desire and commitment to greater cooperation on the part of the older people, community agents from the social center of the neighborhood.
Çıkan ya da Çıkarılan Limited Ortağına Ayrılma Akçesinin Ödenmesi (TTK m. 642)
Authors: CENKCİ Esra
Published: October 2018

Limited ortaklıkta belli koşulların gerçekleşmesi halinde ortaklıktan çıkma ve
çıkarma mümkündür. Çıkan ya da çıkarılan ortak, ayrılma akçesi isteme hakkını
haizdir. Bununla birlikte, ayrılma akçesinin muaccel hale gelmesi alternatifli
bazı koşulların gerçekleşmesine bağlıdır (TTK m. 642). Öngörülen muacceliyet
koşulları ile ayrılma akçesinin alacaklıların menfaatlerinin korunması açısından
elverişli bir kaynaktan ödenmesi amaçlanmaktadır. Bu kaynakların hangi andan
itibaren ödeme yapmaya elverişli hale geldiği belirlenmelidir. Diğer yandan,
ayrılma akçesinin ödenmesi bağlamında alacaklıların haklarının korunmasına
öncelik tanınması, ayrılan ortağı korumasız bırakmaktadır. Ayrılan ortağın
hakları da limited ortaklığa ilişkin prensipler elverdiği ölçüde gözetilmelidir.
Impact of spatial factors on climate variables and species distribution in forest ecosystems under sea influence of Eastern Blacksea Region
Authors: USTA Ayhan , YILMAZ Murat , KOCAMANOĞLU Yavuz , GENÇ Esengül
Published: October 2018

The distribution and characteristics of forest ecosystems are largely under the influence of climate. Climate directly affects the growth, leaf area and form, fenology and plant life, from seed to seedling formation. Climate varies from global scale to regional and local scales. Climate also has feedback mechanisms that can revert the changing vegetation back to its original state, through the changes it can create on vegetation. In this study, it was aimed to investigate the relationships between the distribution of tree species in the highland which is under the influence of the sea in Canik-Giresun Mountains, Trabzon Mountains and Rize-Kaçkar Mountains sites in the Eastern Black Sea Region, and spatial factors (altitude, distance from sea and latitude) and climate variables. The climate data, such as precipitation, temperature (average, minimum and maximum) and number of foggy days, of meteorological stations at different altitudes in coastal and mountainous areas under the influence of the sea were used in the study. 100 m increase in altitude led to a decrease in 26.9 mm precipitation in the Canik-Giresun Mountains, a decrease in 87.0 mm precipitation in the Rize-Kaçkar Mountains, and an average temperature decrease of 0.4oC in sites. The decrease in annual precipitations reaches 70 mm in Trabzon Mountains, 100 mm in Canik-Giresun Mountains and 290 mm in Rize-Kaçkar Mountains at a distance of 10 km away from the coast. Statistical increases were determined in the number of foggy days depending on the altitude and distance from the sea.

In the research area, at 3rd altitude step where the distance from the sea and altitude are extreme, Scots pine, Oriental Spruce and Fir are spread in Canik-Giresun Mountains, Oriental Spruce and Scots pine are spread in Trabzon Mountains, and Oriental Spruce, Oriental Beech and Fir are spread in Rize-Kaçkar Mountains. Despite the decreasing amount of precipitation along with the increase in altitude and distance from the sea, the fog cloud in high mountainous areas plays an important ecological role in the conservation and distribution of these species.
The effects of liquidity on inventory: Evidence form forestry subsector in Turkey
Authors: AÇIKGÖZ Ali Faruk , DEMİRKOL Celal , APAK Sudi
Published: October 2018

As a part of
Agriculture sector, forestry subsector is the main provider for the forestry
products industry which has been neglected in terms of short-term liabilities
and liquidity analysis. Liquidity is a function of the liabilities of the
businesses in the short-run and it is expected to consist much of trade credit
rather than bank credit. This study tries to reveal the long-term dependence of
the short-term inventories on cash and cash equivalents, short-term bank credit
used, and short-term accounts receivable as a percentage of short-term
liabilities in the forestry products subsector in Turkey. We analyze the sectoral three years averages of aggregate
balance sheet data in the long-term (1998 - 2016) and we depict that
inventories have correlations with cash and cash equivalents, short-term bank
credit and short-term accounts receivable and we also reveal that the sector’s
short-term liabilities have had a diminishing trend in the very long-run. After
introducing the model, we have run the linear regression of the model and we share
the robust results of the tests. The findings give evidence that inventories, which
are in fact the most illiquid part of the current assets, have bank credit
dependency as much as accounts receivable though decreasing liabilities in the
short-term. We therefore offer suggestions on the results for the forestry products
subsector so as to hedge against the potentially adverse liquidity conditions
in the near future. Each precaution held for a subsector will therefore help
the sustainability of the forestry and the agriculture sector as a whole and it
will also contribute as an example therein integrated especially with the
marketing strategies.
Perancangan Aplikasi Penyisipan Pesan pada File Mp3 menggunakan Metode Parity Coding dan Enkripsi Caesar Cipher
Authors: Kurniawan Citra , Putranto Hery Setyo
Published: October 2018

The science of hiding messages in a media is an interesting science to learn. Inserting messages either in text, image, sound and video messages requires input in the form of digital files that will be inserted messages, messages to be inserted (message), and keys (keys). More MP3 are chosen for use than using image files. In hiding messages, a format that is more common is used will be chosen so as not to cause excessive suspicion. Encryption is very important in cryptography, is the security of the data sent to maintain its confidentiality. The type of data in writing this report is the data obtained from the literature study to obtain theoretical data that is used as supporting literature to support the research conducted. The source of the data obtained is primary data as a reference, in this case the author gets data from previous researchers that are related to the research that the author did. The steganography method used in this research is parity coding, which is inserting messages / information into the carrier media in the form of MP3 audio files by first being encrypted using cipher caesarean cryptography encryption technique, which is an algorithm with substitution techniques where each letter in the bright text (plaintext ) replaced by another letter that has a certain position difference in the alphabet. This research was made using Visual Basic.Net software. The results of this study in the form of data that has been encrypted using caesar cipher method and hidden into MP3 Audio File then extracted to get text messages and decrypted to get the original message contained in the mp3 file.
Problem Based Learning for Mathematics Critical Thinking Skills
Authors: Aini Nur Rohmatul , Syafril Syafrimen , Netriwati Netriwati , Pahrudin Agus , Rahayu Titik , Puspasari Vicka
Published: October 2018

This article aims to find out how to develop student’s critical thinking skills through Problem Based Learning. Single-case single-side case study design is using for method this study, involve one lecture. Data were collected through observation, interviews, and analyze document. The resultz were obtained, showing that the development of mathematics critical thinking skills was carried out using the problem based learning of two component: (i) controversial issues, and (ii) active debate. Temuan penelitian ini menunjukkan bahwa problem based learning dapat dijadikan sebagai salah satu alternative untuk mengembangkan kemampuan berfikir kritis matematis mahasiswa.
AMSM- Hypothesis testing- Chapter Five
Authors: Dahman Mohammed R.
Published: October 2018

This is the last chapter summary for section one of this series. We have introduced the “Ladder process”. Followed by the definition of hypothesis testing and its types. Furthermore, we have discussed the steps of visualizing the hypothesis statement and the method of making a decision based on the statistical finding. Finally, we introduced type error-I and error-II and methods of detecting them. Hands on practice was the last section of this chapter. We have done few examples to cover what we have learned till this point.
A Bridge from Monty Hall to the Hot Hand: Restricted Choice, Selection Bias, and Empirical Practice
Authors: Miller Joshua Benjamin , Sanjurjo Adam
Published: October 2018

We show how classic conditional probability puzzles, such as the Monty Hall problem, are intimately related to the hot hand selection bias. We explain the connection by way of the principle of restricted choice, an intuitive inferential rule from the card game bridge, which we show is naturally quantified as the updating factor in the odds form of Bayes Rule. We illustrate how, just as the experimental subject fails to use available information to update correctly when choosing a door in the Monty Hall problem, researchers may neglect analogous information when designing experiments, analyzing data, and interpreting results.
PENGARUH CORPORATE IMAGE DAN KUALITAS PELAYANAN TERHADAP CUSTOMER VALUE DAN LOYALITAS PELANGGAN HOTEL GRAND ASTON CITY HALL MEDAN
Authors: Sudarso Andriasan
Published: October 2018

Kondisi persaingan dalam industri perhotelan berlangsung sangat ketat sejalan dengan maraknya pertumbuhan hotel-hotel berbintang maupun hotel-hotel menengah di Sumatera Utara. Maraknya pertumbuhan hotel sama sekali bukan cerminan tingginya angka wisatawan yang datang ke Sumatera Utara. Hal ini tercermin dari rendahnya rata-rata tingkat hunian hotel di Propinsi Sumatera Utara dari tahun 2007 sampai dengan tahun 2011, dimana terjadi penurunan mulai tahun 2009. Dan pada tahun 2011 yaitu sekitar 47,52% yang naik tipis dibanding tahun 2010 sebesar 47,44 menurut data Badan Pusat Statistik Sumatera Utara. Kenaikan tingkat hunian ini berhubungan dengan tingkat kepuasan dan loyalitas konsumen. Oleh karena itu, peneliti ingin mengetahui hubungan corporate image, dan kualitas pelayanan dengan customer value sebagai variabel intervening dalam membangun loyalitas konsumen pada hotel Grand Aston City Hall Medan.Penelitian ini menggunakan pendekatan explanatory survey terhadap 200 konsumen hotel Grand Aston City Hall Medan. Data hasil survey dianalisis dengan menggunakan metode Structural Equation Modelling (SEM) dengan aplikasi LISREL 8.30. Hasil analisis menunjukan bahwa adanya hubungan parsial dan simultan yang positif dan signifikan antara corporate image dan kualitas pelayanan dengan customer value. Demikian juga terhadap loyalitas konsumen dipengaruhi secara signifikan oleh corporate image, kualitas pelayanan secara langsung maupun secara tidak langsung melalui customer value.
IMPROVING SERVICE QUALITY OF CALL CENTER USING DMAIC METHOD AND SERVICE BLUEPRINT
Authors: Abdul Fino Wahyudi
Published: October 2018

Customer satisfaction is an important factor to businesses, because it causes customers to constantly return to use the service. Customer satisfaction is also related to the quality of service received by the customer of the companys’ products or services. The problem of PT OCI call center service quality happened at the first time a customer contacts the call center where waste of customer’s waiting time is detected. Service quality improvement methods used in the analysis of the waste of customers’ waiting time is the DMAIC and lean approach. Results showed that improvement is seen at the sigma level. The tools used are SIPOC, pareto diagram, CTQ, two proportion test, DOE, p-chart, and minitab software. Service blueprint analysis is used to analyze and discuss the relationship between service quality improvement using DMAIC in service process, points of contact with customers, and the evidence seen by the customer service.