bluuebunny/crossref_metadata_2025 huggingface dataset:
FRÉQUENCE DE LEXÈME MAÎTRISÉE CHEZ LES ÉTUDIANTS DE NIVEAU A2
Authors: Jayanti Lely , Polili Andi Wete
Published: June 2022

RESUMÉ Lely Jayanti. 2112131006. Fréquence de Lexème Maîtrisée Chez Les Étudiants de Niveau A2. Section Française, Département des Langues Étrangères, Faculté de Lettres et d’Arts, Université de Medan. 2016. Cette recherche a pour but de connaître ou bien savoir la fréquence de lexème maîtrisée chez les étudiants de niveau A2 et savoir le lexème moins maîtrisé.   Cette recherche s’est déroulée à l’Unimed à la section française. L’échantillon est les étudiants de niveau A2 dans troisième semestre qui se composent de 20 étudiants.   Cette recherche utilise la méthode descriptive quantitative-qualitative. Pour compter la note chaque étudiant utilisée la formule d’Arikunto suivant :   p =Nk/N  x 100 %   Par rapport au résultat et l’analyse de la recherche, la note élevée du nom est 67,02 , la note élevée de l’adjectif est 67,57 , et la note élevée du verbe est 56,25. Le lexème plus maîtrisé est l’adjectif avec la note 67,57 avec la catégorie incompétent (E) et le lexème moins maîtrisé est le verbe avec la note 56,25 avec la catégorie incompétent (E)   Mots clés : Fréquence, maîtriser, lexème.
ANALYSE CONTRASTIVE DES EXPRESSIONS DU BUT EN FRANÇAIS ET EN INDONÉSIEN
Authors: SINAGA SITI HARDIYANTI , ZULHERMAN ZULHERMAN , FIBRIASARI HESTI
Published: June 2022

Le but de cette recherche est pour savoir les expression du but qui sont trouvées en français et en indonésien. En trouvant ces expressions, on trouve aussi sa différente et sa similarié. La théorie que l’on utilise dans cette recherche est celle de Albert Hamon (1987) et Hasan Alwi (2003). La méthode de cette recherche est la méthode qualitative. La méthode qualitative est un procés  la recherche qui produit la donnée descriptive comme le mot à l’écrit ou à l’oral des personnes observées. Cette méthode de recherche va expliquer une condition de vérité et donner la priorité à la donnée que la théorie. Pour analyser les données, l’auteur utilise les livres de français et d’indonésien pour trouver et résoudre les formulations du problémes. Le résultat de la recherche indique qu’il existe 7 expression du but en indonésien et 23 expression du but en francais. On trouve finalement les différences parmi ces deux langues. Les expressions du but en indonésien sont toujours suivies ou se trouve entre deux propositions. Tandis que les expressions du but en français, elles sont suivies par le nom et les modes. Les modes sont l’infinitif et le subjonctif. C’est vraiment différent avec l’indonésien, où il ne connait pas le mode. Les expressions du but peuvent être en forme de préposition mais les expressions du but en français ne connaissent pas la préposition dans leurs expressions du but. On trouve aussi la similarité entre tous les deux. Les similarités se trouvent à la fonction des expressions du but trouvées. Les fonctions sont pour unir deux ou plus de propositions. A côté de cela, il existe aussi une similarité selon sa position. La position des expressions du but est au bout d’une phrase ou bien au centre de la phrase.   Mots clés: expression du but, contrastive, similarité, différence.
L’EFFICACITÉ DE L’UTILISATION DU MÉDIA MOODLE DANS L’ENSEIGNEMENT DE FRANÇAIS À SMA NEGERI 21 MEDAN
Authors: Siregar Iin Sintya , Polili Andi Wete , Sembiring Pengadilen
Published: June 2022

La recherche a pour but d’améliorer l’apprentissage des lycéens qui apprennent le français en utilisant le média Moodle. En outre, cette recherche vise également à tester l’efficacité des médias Moodle pour l’apprentissage du français à SMA Negeri 21 Medan. Les sujets dans cette recherche sont les lycéens de la classe XI IPS 2 et XI IPS 3 SMA Negeri 21 Medan avec le participant de 30 lycéens. La première classe est une classe expérimentale du groupe les lycéens utilisant du média Moodle et la deuxième classe est une classe de contrôle du groupe des lycéens avec ceux qui ne l’utilise pas. Il y a deux types de données collectées au cours de l’étude, quantitatives et qualitatives. Les instruments de collecte de données à traves des données. Technique d’analyse des données utilisant T-test. Les résultats T-test groupe expémental montre T-hitung(Th) 2,002 avec df (degree off freedom)58 et la valeur p 0,005 . Le score plus petit que le niveau de signification 5% (0,000 < 0,005) et Les résultats T-test groupe expémental montre Thitung(Th) 6,870 avec df (degree off freedom) 58 et la valeur p 0,670. Le score p supérieur au niveau de signification 5% (0,670 > 0,005). Le score moyen des lycéens en post-test en classe de expérimental est 81,50, alors que pour la classe de contrôle est 69,33. Sur la base de la moyenne, on peut voir qu’il y a une augmentation significative de la capacité à écrire des lycéens en utilisant du média Moodle qui est 69,33 - 81,50. Donc, l’utilisation du média Moodle peut améliorer les résultats d’apprentissage des lycéens de l’SMA Negeri 21 Medan. En outre, les résultats de la recherche du média Moodle utilisé efficacement dans l’apprentissage du français.Mots clés: efficacité, média Moodle, éxpression ecrite.
L’ÉQUIVALENCE DU VERBE POLYSÉMIQUE “METTRE” DANS LE ROMAN BONJOUR TRISTESSE ET LARA KUSAPA
Authors: Safitri Arwinda Ana , Polili Andi Wete , Zulherman Zulherman Zulherman
Published: June 2022

Le but de cette recherche est des Savoir les idées du verbe polysémique “Mettre” dans le roman Bonjour Tristesse et Lara Kusapa et Savoir l’équivalence du verbe polysémique Mettre dans le roman Bonjour Tristesse et Lara Kusapa. La méthode utilisée dans cette recherche est la méthode qualitative descriptive. L'auteur utilise le roman Bonjour Tristesse de François Sagan avec sa traduction Lara Kusapa comme source de données. L'auteur utilise la théorie de Nicole Larger et Reine Mimran. Les résultats de cette étude indiquent que les types d'idées de verbe polymémique "Mettre" se composent de 4 types, à savoir L'idée de changement de place, L'idée de changement de position, L'idée de changement d'état et L'idée de dépense, de durée, de temps. L’idée de changement d’état se trouve plus couramment dans les romans Bonjour Tristesse avec la traduction de Lara Kusapa. D'après ces résultats, on peut voir qu'il y a 14 ou 34,15% de types d'idées de changement de place, il y a 9 ou 21,95% d'idées de changement de position, 16 ou 39,02% d'idées de changement d'état, et de dépense, de durée, de temps sont de 2 ou 4,88%.
Alteration of PGC1-α in the mitochondrial homeostasis of cardiomyocytes under hyperglycemia. Role of the GLP-1R activation
Authors:   Laboratory of Diabetes and Vascular Pathology, IIS-Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain, Lumpuy-Castillo Jairo , Hang Tianyu ,   Laboratory of Diabetes and Vascular Pathology, IIS-Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain, Lorenzo-González Óscar ,   Laboratory of Diabetes and Vascular Pathology, IIS-Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain,   Spanish Biomedical Research Centre on Diabetes and Associated Metabolic Disorders (CIBERDEM) Network, Madrid, Spain
Published: June 2022

Introduction: Cardiovascular disease is the major cause of morbidity and mortality in diabetic patients, and mitochondrial homeostasis can be a key organelle in cardiomyocytes. Peroxisome proliferator-activated receptor- gamma coactivator-alpha (PGC-1α), a master transcription factor of mitochondrial function, may be regulated under hyperglycemic stimulus and anti-diabetic drugs, such as Glucagon-like protein-1 receptor agonists (GLP-1RA). Methodology: The mitochondrial protein expression of PGC-1α and Cytochrome-C was evaluated under 25 mM glucose (HG) and/or GLP-1RA stimulation in H9c2 cardiomyocytes after 18-48 hours. Western blotting was performed from cytosolic and enriched mitochondrial fractions. Also, PGC-1α related genes (Cpt1a, Sdhb, Mfn1 and Nrf1) were quantified by qPCR assay. Results: Mitochondrial PGC-1α and Cytochrome-C, but not TFAM and PPARd, were increased only after 24h of HG. However, at this time, the levels of Cpt1a, Sdhb, Mfn1 and Nrf1 were differentially regulated. Interestingly, co- incubation with GLP-1 and GLP-1RA attenuated expression of both PGC-1 and Cytochrome-C at the mitochondrial location. Conclusions: Hyperglycemia may damage the myocardium by increase of cellular oxidation, but it also could enhance early-responses of cardioprotection by enhancing PGC-1α and Cytochrome-C at the mitochondria. Interestingly, activation of GLP-1RA may attenuate this effect, suggesting a new mechanism of action for GLP-1RA drugs.
Anxiety, Addiction to Social Networks, Internet and Smartphones in Paraguayan Adolescents: A Brief Report
Authors: Figueredo Pamela , Barrios Iván , O’Higgins Marcelo , Amarilla Diego , Almirón-Santacruz José , Melgarejo Osvaldo , Ruiz-Díaz Noelia , Castaldelli-Maia João Mauricio , Ventriglio Antonio , Torales Julio
Published: June 2022

Background

Several authors have pointed out that the use of smartphones might have an impact on mental health in general. Most of the evidences are focused on the incorrect or overblown use of smartphones, videogame or Internet, particularly focusing on related addiction problems among adolescents.

Objective

The present study, although preliminary, aims to report the first evidence in Paraguay regarding the association between anxiety and addiction to social networks/internet as well as the use of smartphones among adolescents.

Method

Participants (100 adolescents, aged 12- 17 years old) were assessed in a school setting with the Beck Anxiety Inventory (BAI) and the Scale of risk of Addiction to Social Networks and Internet for adolescents (ERA-RSI). Categorical variables and associations were statistically assessed.

Results

The average smartphone use in boys rated 8.06 ±3.81 hours and in girls 9.46 ±4.4 hours. The BAI mean score was 20.71 ± 13.2. Of the participants, 27% reported moderate anxiety, and 36% severe anxiety and scores on this scale were not associated with hours of smartphone use. The ERA-RSI mean score was 1.94 ± 0.46 and anxiety was related to the symptoms-addiction, social-use, and nomophobia dimensions of the scale.

Conclusion

The misuse of smartphones in the Paraguayan pediatric population has been reported to be closely related to anxious symptoms. Our results suggest further research with an impact on possible public health policies aimed at preserving the mental health of children and adolescents exposed to internet and electronic devices.
Proceso hacia la libertad creativa: Reflexiones de mi experiencia etnográfica con el teatro de grupo peruano Cuatrotablas
Authors: Vélez Salas Carlos Martin
Published: June 2022

En este testimonio expongo proposiciones con la finalidad de realizar un análisis de mi experiencia etnográfica con integrantes del teatro del grupo peruano Cuatrotablas. Tomo en consideración conversaciones pedagógicas, comunicaciones por medios electrónicos, una entrevista formal con el desaparecido director del grupo Mario Delgado Vásquez (1947-2016), los hallazgos de un estudio etnográfico con la última generación de actores, así como mis anotaciones etnográficas y documentos relacionados con la producción artística del grupo. Al final, planteo una reflexión y acciones para la mayor inclusión de estos aprendizajes teatrales en mi labor como profesor de español a nivel universitario en San Antonio, Texas.
Towards creative freedom: my ethnographic experience with the Peruvian theatre group Cuatrotablas
Abstract In this article I state propositions in order to offer an analysis of my ethnographic experience with members of the Cuatrotablas Peruvian theatre group. To achieve this objective, I take into consideration pedagogical conversations, electronic messages, a formal interview with the group’s director Mario Delgado Vásquez (1947-2016), the findings of an ethnographic study the group’s actors, my ethnographic annotations and documents related to the artistic production of this group. I elaborate a set of reflections and actions that can be brought to my theater-based lessons as a teacher of Spanish at the college level in San Antonio, Texas.
Entre ríos y teatros. Estudios sobre artes escénicas, historia y teoría teatral de una provincia del litoral argentino
Authors: Mangiante Marcelo
Published: June 2022

Meresman, Guillermo. Entre ríos y teatros. Estudios sobre artes escénicas, historia y teoría teatral de una provincia del litoral argentino. Paraná: Azogue Libros, 2020. 90 pp. ISBN 978-987-86-3322-0
Paraná, urbe que hoy es cabecera de la provincia de Entre Ríos, es la única ciudad aparte de Buenos Aires que alguna vez fue capital de Argentina: sucedió entre 1854 y 1860. De aquellas épocas de primacía nacional quedan mínimos vestigios; el más notorio es el Teatro 3 de Febrero, fundado en 1852 (reconstruido, tras un incendio, en 1908), de exquisito, aunque ecléctico, diseño y de una acústica excepcional que no iguala ningún otro coliseo en el país, salvo el Teatro Colón porteño.
Necroteatro. Iconografías del cuerpo roto y sus registros punitivos.
Authors: Diéguez Ileana
Published: June 2022

Este texto aborda las exposiciones punitivas del cuerpo en espacios públicos de ciudades y poblaciones de México durante el llamado “sexenio de la muerte” y hasta el día de hoy. Estas representaciones se consideran como un ‘necroteatro’ en el que se utilizan cuerpos rotos para producir textos corporales del terror. Las reflexiones se desarrollan desde la teatralidad que suponen estas exposiciones, tanto en la construcción directa de las escenas como en su transposición fotográfica.
HURT. Reflexión en torno al dolor
Authors: Rojas Liliana
Published: June 2022

“I hurt myself today to see if I still feel. I focused on the pain, the only thing that’s real…” Esta línea de la canción HURT, original del grupo estadounidense Nine Inch Nails, podría traducirse así: “Hoy me lastimé a mí mismo para ver si aún siento. Me concentré en el dolor, la única cosa real.” Esta canción suena, con la voz grave de la versión de Johnny Cash y las notas melancólicas de la guitarra, cuando aparece en escena una espigada y esbelta actriz enfundada con un nítido atuendo de ballerina. La actriz se ve acompañada por Verónica, una muñeca “Barbie” de plástico, lo que produce en conjunto una extraño y casi doloroso contraste.
Norma Elena Román Calvo. Dramaturga, docente, investigadora y amiga generosa
Authors: Fuentes Guillermina
Published: June 2022

Norma, la querida Norma, Normita; no fue mi maestra en la universidad pero sí en, y de la vida. Mi recuerdo más remoto de ella es del año 2002, durante el Congreso de la Asociación Mexicana de Investigación Teatral en la Universidad Veracruzana (Xalapa), cuando el grupo de trabajo referente a los estudios de Semiótica Teatral continuaba discutiendo y deliberando más allá del tiempo propuesto en el horario. Una de las protagonistas del debate era justamente Norma Román Calvo.
Lech Hellwig-Górzyński. Director, actor, docente, investigador y embajador del teatro entre Polonia y México
Authors: Correa Bernal Mónica , Bak-Geler Tibor
Published: June 2022

Probablemente nadie conocerá la verdadera historia de Lech Hellwig-Górzyński. No es sencillo armar el rompecabezas que dejó este gran director, actor y maestro dedicado al teatro. Lech, como lo llamaban sus amigos, nació el 24 de enero de 1945. Obtuvo el grado de maestro en arte con las especialidades en dirección de escena y en actuación por la Academia Teatral Aleksander Zelwerowicz, antes Escuela Nacional Superior de Teatro en Varsovia. Fue autor y creador de más de treinta espectáculos profesionales en diversos géneros dramáticos, ópera y ballet.
Performance Analysis of a Single Phase Induction Motor For Different Values of Running Capacitor
Authors: Al Nemaa Dhiyah , Yaheya Omar
Published: June 2022

The effect of the value of running capacitor on the performance of a single-phaseinduction motor is studied through the evaluation of the efficiency, power factor andvibration of the machine for different values of this capacitor choosing unsuitable value ofthe running capacitor worsen the performance of the motor and it may even damage themotor as a consequence of increasing auxiliary winding current.In this research, a computer program has been developed for finding an optimumrunning capacitor for the induction motor.Experimental results has been obtained in the laboratory and compared with thecomputer results for validation. The effect of the running capacitor on motor vibration hasalso been obtained and measured. Although this study was performed on a certain twophaseinduction motor, the same developed computer program may be used to obtain theoptimum value of the running capacitor for any single phase IM of known parameters.
Chemical Acidic Attack Resistance of Lightweight Concrete with Additives
Authors: Ahmed Salwa H.
Published: June 2022

This research was studied the effect of H2SO4 (8%), HCl (8%) acidic and wastewater) pH= 5.1, SO4= = 850mg/L, Cl–=750 mg/L, TDS = 2500 mg/L (on the lightweight concrete by using limestone as lightweight aggregate and using the foam material (Light Crete). Super plasticizers (SP) also used to enhance the properties of the lightweight concrete. Studying the effect of acidic solution and wastewater was done by calculating the percentage of decrease in weight and compressive strength of concrete prisms (100 * 100 * 400) mm, where the small portion of the flexural modulus test was submerged completely in the above solutions, and the salt rising was observed by immersion (100) mm depth from the second portion of the prism in the above solutions. Results show that the H2SO4 have influence larger than HCl for the decrease of weight on the normal concrete while the effect of HCl was larger than H2SO4 on lightweight concrete with limestone and its effect was less than H2SO4 on the lightweight concrete with foam. The results also shown that the effect of H2SO4 on the normal concrete by decreasing of compressive strength was less than the  effect of  HCl, while the effect of  H2SO4 on foam lightweight concrete was large and its effects was small on lightweight concrete containing SP and Limestone. The wastewater did not shown significant effect on the weight decrease percentage due to lack of concentration of sulfates and chlorides in the wastewater, but for the loss of compressive strength. The results showed that the wastewater does not significantly effect on the resistance of normal concrete and lightweight concrete containing Limestone, while the effect was larger on lightweight concrete with SP and Limestone used as fine and coarse aggregates and on lightweight concrete foam.
Overflow Characteristic of Cylindrical Shape Crest Weirs over Horizontal Bed
Authors: Al Babely Emad Abdul-Gabbar , Al Muhammad Adnan Abdul-Wahab , Al Dabbagh Mohammad A.
Published: June 2022

The most common types of weirs are the broad-crested weir, the sharp-crested weir, the circular crested weir and the ogee crested weir. Advantages of the cylindrical weir shape include the stable overflow pattern, the ease to pass floating debris, the simplicity of design compared to ogee crest design and the associated lower costs. In present study, it was investigated the overflow characteristics of circular weirs in laboratory for various cylinder radii of three sizes (11.4, 9.0, 6.3 cm), and the models fixed on the channel bed vertically to the direction of flow. The result shows that the increase in the ratio of head to weir radius ratio (Hw/R) value causes an increase in discharge coefficient (Cd) value for the same height of weir. It was observed that the cylinder size (i.e. radius of cylindrical weir (R)) has an effect on the (Cd). The flow magnification factor (qw/qs) increases with an increase in (Hw/R) value and values of (qw/qs) were always higher than one for all values of (Hw/R), this means that weirs of cylindrical shape performed better than those of sharp crest for any value of weir radius tested in this study
Heat Transfer and Fluid Flow Characteristic in banks Flat Tubes
Authors: Shareef Amer Jameel , Ramadhan Abdulmajeed A.
Published: June 2022

In this research a study effect of the length ratio (L/Da) and the height ratio (H/Da) for banks flat tube heat exchanger In-Line and staggered arrangement on force convection heat transfer and friction coefficient by (Fluent-CFD) numerical program.The governing equations (mass, momentum and energy) are solving by using Finite Volume (Fluent-CFD) software for considering steady state, two dimensional, at constant heat flux with Reynold’s number (100≤Re≤8000).The results show that increasing (H/Da), (L/Da) lead to decreasing friction coefficient and enhancement of (Nu) is at (H/Da=2) for all (L/Da) values In-line arrangement and at (H/Da =2, L/Da =5) for staggered arrangement.
Performance Evaluation of Wastewater Treated Plant for Ninava Drug Factory
Authors: Hamad Amar Thamir , Al-Tamer Musaab
Published: June 2022

In this study the characteristics of raw and treated wastewater from Ninava drug factory were evaluated. The results revealed that the strength of raw wastewater can be classified as medium concentrated wastewater with respect to its BOD5 since the average value is 231.7 mg/l. In addition a strong correlations were found between many characteristics of raw waste. The characteristics of produced effluent from waste water treatment plant of the factory were within the Iraqi specification for the disposed wastewater constraints in 1997, where the average is 7.8 for pH, 40mg/l for SS, 2.8 mg/l for PO4-3, 45 mg/l for BOD5 and 104.3 mg/l for COD. The heavy metals concentrations for both raw and treated wastewater is to be less than those of the related literatures for Tigris river, municipal wastewater and water supply in Mosul city, the average heavy metal concentrations of raw and treated wastewater were 0.5 mg/l for Iron, 0.2 mg/l for zinc and 0.005 mg/l for copper, and there is no significant difference between raw and treated heavy metal concentrations.
Empirical Models for the Correlation of Metrological Data for Tikrit-TuzKhurmato and Kirkuk-IRAQ
Authors: Al-Dulaimy Fayadh M. Abed , Al-Shahery Ghazi-Yousif Mohammed
Published: June 2022

Measurements of metrological data of maximum, minimum ambient temperature, humidity and sunshine duration for a period of 23 years during the period of 1977-2000, at Tikrit (34. 35°N, 43.37°E), TuzKurmato (34.88°N, 44.64°E), and Kirkuk (35.30°N, 44. 21°E) were used to establish an Angstrom type correlation equations for direct global solar radiation. The diffuse radiation was estimated by using Klien and Page Models. This calculation appears to be sufficient to discriminate each station from the others due to it’s local characteristic of the sites. The overall results shown for TuzKurmato, the received radiation on the plane surface is higher than Tikrit and Kirkuk while the diffuse radiation reversely behaved as for Tiktit is the highest. The developed model can be used for estimating global solar radiation on horizontal surfaces. The monthly average total solar radiation was estimated. The value of correlation coefficient (r) and value of Root Mean Square Error (RMSE), Mean Bias Error (MBE) and Mean Percentage Error (MPE) were determined for each equation
Treatment of Oily Wastewater Produced From Old Processing Plant of North Oil Company
Authors: Al-Ani Faris Hammoodi
Published: June 2022

The main objectives of this research were to study and analyses oily wastewater characteristics originating from old-processing plant of North Oil Company and to find a suitable and simple method to treat the waste so it can be disposed off safely.The work consists of two stages; the first was the study of oily wastewater characteristics and its negative impacts. The results indicated that oil and grease were the most dominant pollutant with concentration range between 1069 – 3269.3 mg/l that must be removed; other pollutants were found to be within Iraqi and EPA standards. The next stage was the use of these characteristics to choose the proper technology to treat that wastewater. This stage was divided into two stages: the first stage was a jar tests to find the optimum doses of alum, lime and powdered activated carbon (PAC). The second stage was the treatment by a batch pilot plant constructed for this purpose employing the optimum doses as determined from the first stage to treat the waste using a flotation unit followed by a filtration-adsorption unit. The removal efficiencies of flotation unit for oil and grease, COD, and T.S.S found to be 0.9789, 0.974, and 0.9933, respectively, while the removal efficiency for T.D.S was very low 0.0293. From filtration – adsorption column the removal efficiencies of oil and grease, T.D.S, COD, and T.S.S were found to be 0.9486, 0.8908, 0.6870, and 0.7815, respectively. The overall removal efficiencies of pilot plant were 0.9986, 0.8939, 0.9921, and 0.9950, respectively. The results indicated that this type of treatment was the simplest and most effective method that can be used to treat produced oily wastewater before disposal.
Using of Local Limestone as Aggregate in Concrete Mixture
Authors: Jomaa’h Muyasser M.
Published: June 2022

This research deals with the field investigations and construction properties for using limestone as a lightweight course aggregate in concrete mixture in stead of normal coarse aggregate. Concrete cubes samples have been prepared with dimensions of 150*150*150 mm according to ASTM. For these samples the normal coarse aggregate was replaced by 100% coarse crushed limestone. Three types of limestone which were used (Al-Sinea, Makhool and Himreen), it was found that the Al-Sinea type of limestone gave a good combination (fcu =32.11MPa without admixtures).The obtained results showed a suitable reduction in dead loads of structural elements and cost. Accordingly, the usage of limestone will improve the structural applications and concrete mix properties to attain economic viability. These above results make limestone as a good alternative of normal coarse aggregate.
Thermal Performance of Housing Open Spaces in the City of Mosul
Authors: Alhadidi Turki Hasan Ali , Al-Azzawi Amer Abdullah , Al-Dallee Luma Mohmmad
Published: June 2022

The rapid urban growth has lead to an urgent need to increase residential buildings in such a way that requires quick execution of such buildings. The appearance of modern materials such as reinforced concrete has helped in getting fast-constructed houses of a westerly pattern such that excluding the inherited styles that are in harmony with severe environment like that of the Middle East. This has resulted in a modern pattern of buildings lacks the microclimate which was enjoyed by the traditional pattern and which have provided the inhabitant with a relative thermal comfort.This research try to compare different microclimates due to the variation of open architectural spaces patterns in the residential units (traditional ones) represented by (the courtyards and Iwan) and the modem one represented by the space of (garages and terraces) in Summer in Mosul city.The results showed that the traditional open spaces are the nearest to the thermal comfort zone, although both of them don't represent the ideal state of human comfort in this period of Summer.
Two Decades Comparison of Solid Waste Composition and Generation in Mosul City
Authors: Al-Rawe Satea M. , AL-Tayyar Taha A.
Published: June 2022

Survey and sampling collections on municipal solid waste (MSW) composition and generation rate of Mosul city was conducted for more than six months with daily repetition .The results revealed the variation of solid waste components with the domination of food and organic waste. Other components as paper, glass, plastic, metal, tin can, textiles and wood were clearly shown. Also small percentages of rubber, leathern materials, trimming and others were founded also.The percentages of different solid waste components with those dominated in the 1988 were made. The apparent differences were attributed to changes ofconsumption style and living of Iraqi families. Organic matter which constituted (68.17%) can be using to produce soil conditioners. Recycled and reused matters comprised (20.0%) could also be advantageously used. The remaining small percentages which amounted (11.83%) could be sent to landfill.Statistical analyses were done to represent the scatter of each component about the mean value.The daily per capita generation rate of solid waste in the city as pure residential generation amounted to (0.305 Kg/capita per day). The Gross generation of various types of solid waste was calculated as (0.61 Kg/capita per day). Some mathematical relations were used to forecast the future generation rate and composition of the city solid waste.
Real Time Implementation of PID and Fuzzy PD Controllers for DC-Servo Motor Based on Lab View Environment
Authors: Al-Ubaidi Safaa M. Z. , Algreer Maher M. F.
Published: June 2022

This paper presents an implementation of conventional PID (CPID) controller using Ziegler-Nichols rules and fuzzy PD (FPD) controller for position servo motor control based on Lab View (Laboratory Virtual Instrument Engineering Workbench Environment) through Data Acquisition (DAQ) Device PCI- 6521 of National Instrument's and Data Acquisition Accessory Board Model (CB-68LP).CPID controller is perhaps the most well-known and most widely used in industrial applications. However, it has been known that CPID controller generally don’t work well for non-linear systems, higher order and time-delayed linear system and particularly complex and vague system. To overcome these difficulties, this paper proposes to use the FPD controller for a servo motor system instead of CPID. The parameters of servo motor used are completely unknown. The FPD structure has two-input single-output and fairly similar characteristic to its conventional counterpart and provides good performance. Simple rules base are used for FPD (nine rules only). Performance evaluation was carried out via a comparison study for the proposed control scheme and other existing control scheme, such as CPID controller. The critical point for this experiment on position system is a steady state error and settling time. The performance showing that the FPD has less settling time and zero steady state error over its CPID. The algorithms of FPD and CPID controllers are implemented using PID, Fuzzy Logic and simulation toolkits of the Lab View environment.
Using of Porcelinite as Coarse Aggregate in Concrete
Authors: Saleh Haifa M.
Published: June 2022

In this research the ability of using porcelinite as coarse aggregate to produce light weight concrete was investigated. The experimental program consists of preparing and testing a mixes to investigate mechanical properties of concrete, with a total of 15 cubes (100×100×100) mm, 30 cylinders (100×200) mm. The tests include compressive strength, splitting tensile strength, fresh and hardened density of light weight concrete for different porcelinite percentages ranged between(0% to 100%) of the coarse aggregate weight. The obtained results for tested specimens were compared to control one. Test results indicated that using of porcelinite in concrete mix reduces the strength of concrete Porcelinite aggregate represents a reduction in density ranging between (10%-36%) of normal weight concrete, therefore there is an advantage using this type of light weight aggregate in this country where soil bearing capacity is low in most construction sites.
Experimental Investigation of Static Behavior of Fibrous Concrete Simply Supported Deep Beams under Patch Loading
Authors: Hanna Thamer H.
Published: June 2022

This paper investigates the effect of steel and polypropylene fibers on static behavior of simply supported deep beams of normal concrete strength under patch loading. Also the paper studied the effect of web opening and its positions on shear capacity and mode of failures for steel fiber concrete deep beams under the same conditions of loading and strength.Sixteen beams of (1000*300*100mm), eighteen cubes (150*150*150mm) and thirty cylinders (150*300mm) in dimensions were cast with different fiber volume content (0, 0.4, 0.64 and 0.89%) as additives. Shear capacity, mode of failure and three of mechanical strengths were tested.After testing, the results indicate that shear capacity increases with increasing volume of steel fiber content with change on mode of failure while midspan displacement decreases.
An FPGA Implementation of Secured Steganography Communication System
Authors: Mahmood Ahlam Fadhil , Kanai Nada Abdul , Mohmmad Sana Sami
Published: June 2022

Steganography is the idea of hiding secret message in multimedia cover which will be transmitted through the Internet. The cover carriers can be image, video, sound or text data. This paper presents an implementation of color image steganographic system on Field Programmable Gate Array and the information hiding/extracting techniques in various images. The proposed algorithm is based on merge between the idea from the random pixel manipulation methods and the Least Significant Bit (LSB) matching of Steganography embedding and extracting method.In a proposed steganography hardware approach, Linear Feedback Shift Register (LFSR) method has been used in stego architecture to hide the information in the image. The LFSRs are utilized in this approach as address generators. Different LFSR arrangements using different connection unit have been implemented at the hardware level for hiding/extracting the secret data. Multilayer embedding is implemented in parallel manner with a three-stage pipeline on FPGA.This work showed attractive results especially in the high throughputs, better stego-image quality, requires little calculation and less utilization of FPGA area. The imperceptibility of the technique combined with high payload, robustness of embedded data and accurate data retrieval renders the proposed Steganography system is suitable for covert communication and secures data transmission applications.
Productivity Amelioration of Solar Water Distillator Linked with Salt Gradient Pond
Authors: Chaichan Miqdam Tariq , Abaas Khalil Ibraheem
Published: June 2022

There is a great need for fresh water in many developing countries. Water sources from, e.g., lakes; rivers and groundwater are often brackish or contain harmful bacteria and should therefore not be used for drinking or irrigation.In this work a simple solar double sloped basin type still was connected to a solar salt gradient pond. The salinity-gradient solar pond is constructed in such a manner that the convective circulation in the pond is prohibited by making the bottom water much denser than the surface water. In doing so, the solar radiation absorbed in the deep water can be stored; the hot water from the salt pond was used to heat salt water in the stiller, at daylight and night.The tests were conducted in September and October in autumn season in Baghdad city-Iraq in 2009. The results show development in stiller productivity at daylight and larger productivity increase at night. The stiller productivity increased also with cooling the glass cover from the still outside.
Generation of Domestic Solid Waste in Tikrit City and The Effects of Family Size and Incomes Level on the Rate of Generation
Authors: Al-AbidRaba Waled M. S. , Khuthayer Hanin A.
Published: June 2022

This research included collection and analysis of (2800) samples from four different neighborhoods in Tikrit over the seasons of the year to cover seasonal changes in the generation rate of domestic solid waste. The generation rate of domestic solid waste is (0.460 kg / person / day). The results also showed that summer season is the most season that produced solid waste (0.487 kg / person / day). While winter is the lowest season (0.422 kg / person / day). The results indicated that Friday and Saturday are the most producing days (0.629 , 0.557 kg / person / days), respectively. The results showed the impact of rural character of Aalam region in reducing the rate of generation of domestic solid waste as the rate of generation of the neighborhoods of the four studied areas was (0.460) kg / person / day. SPSS program using has been adopted as a method of statistical analysis to study the effect of family size and income level have on the generation rate in the city, where the results showed that family size adversely affects the generation rate of solid waste, also the lowest generation rate was recorded for families with high income level.
Measurements of Electromagnetic Fields Emitted from Cellular Base Stations in Shirqat City
Authors: Ali Kamil J.
Published: June 2022

With increasing the usage of mobile communication devices and internet network information, the entry of private telecommunications companies in Iraq has been started since 2003. These companies began to build up cellular towers to accomplish the telecommunication works but they ignore the safety conditions imposed for the health and environment that are considered in a random way. These negative health effects which may cause a health risk for life beings and environmental pollution. The aim of this work is to determine the safe and unsafe ranges and discuss damage caused by radiation emitted from Asia cell base stations in Shirqat city and discuses the best ways in which can minimize its exposure level to avoid its negative health effects. Practical measurements of power density around base stations have been accomplished by using a radiation survey meter type (Radio frequency EMF Strength Meter 480846) in two ways. The first way of measurements has been accomplished at a height of 2 meters above ground for different distances (0-300) meters. The second way is at a distance of 150 meters for different levels from (2-15) meters above ground level. The maximum measured power density is about (3) mW/m2. Results indicate that the levels of power density are far below the RF radiation exposure of USSR safety standards levels. And that means these cellular base stations don’t cause negative the health effect for life being if the exposure is within the acceptable international standard levels.
A Correlative Measurement of an Hourly Record of Solar Radiation and Climatological Parameters
Authors: Abed Al-Dulaimy Fayadh M. , Mohammed Ghazi Yousif
Published: June 2022

A correlation of measured data for the solar radiation on a horizontal surface at ambient temperature and humidity was achieved. For all measurements being hourly averaged to fifth order polynomial. The data correlated to a second degree equation with time for an hourly, daily and monthly obtained data. This correlated data compared to best predictive models for the same site of observation. However these measurements appeared to be sensitive to minor and major changes of local weather patterns which is reflected in a deviation to about 4% to the lower margin and 5% to its higher margin.
Behavior of Damaged Reinforced Concrete Beams Strengthened with Externally Bonded Steel Plate
Authors: Al-Hassani H. M. , Al-Ta’an S. A. , Mohammed A. A.
Published: June 2022

Flexural strength and deformation of reinforced concrete beams strengthened with steel plates were studied in this paper. For bonding the steel plate to the beam a technique of welding steel plate to the stirrups was followed. Fifteen beams were cast and tested; nine beams were strengthened by steel plates preloaded with a fraction of the ultimate load of the control beams (three beams) and then tested to failure. Another three beams were cast and tested to failure also, strengthened and then retested to failure. The test results indicated that the process of welding is successful and can furnish the state of composite action. After strengthening, the ultimate load was increased by 1 to 17 % and by 70 to 94 % for beams strengthened with 1 mm thick and 3 mm thick steel plates, respectively. The effect of cracking due to preloading on the flexural behavior of strengthened beams was found to be not significant.
Fuzzy logic Control of Continuous Stirred Tank Reactor
Authors: Ahmed Duraid Fadhil , Esmaeel Maha Nazar
Published: June 2022

The mathematical modeling of continuous stirred tank reactor system is developed based on the mass and energy balances for the reactor and heating system. The system is studied by introducing step change in concentration, inlet flow, flow of heating fluid, inlet temperature and heating fluid temperature and measuring the temperature change in the reactor. In this paper, a fuzzy logic controller has been designed and evaluated. Through simulation study by using MATLAB, it has been shown that the proposed fuzzy logic controller has given an excellent tracking and regulation performance compared to that of the PID control system.
Comparison between Theoretical Simulation and Experimental Result for Continues Fermenter Product the Baker’s Yeast
Authors: Al-Samarray Abdulqahar M. M
Published: June 2022

Baker’s yeast is an important additive to improve bread quality. Baker yeast produced in two methods (batch or continues fermenter). In this investigation the continuous operating conditions in reactors were studied to predict the best conditions of product. Experimental runs were implemented in a 12-liter pilot-scale fermenter. The simulation carried out between the experimental and the theoretical results and gives a good results presentation of growth rote, the rate of substrate additives, pH and rate of ethanol production. The process is modeled and par formed using a computer programming prepares for this purpose.
USB Data Acquisition Using Peripheral Interface Control Microcontroller
Authors: Fairs Dhiya Mahdi , Ahmed Kasim Abdullah
Published: June 2022

Supervisory Control and Data Acquisition (SCADA) systems have been widely used in industry applications. This paper describes design and implementation low-cost universal serial bus (USB) Data Acquisition (DAQ) which connected with computer through USB port and tested in SCADA system, the designed Data Acquisition build using new generation of microcontroller peripheral interface control PIC18F4550 which supported with USB module and it programmed in C-Language, the developed DAQ have 13 input analog channels and 16 digital I/O lines. At personal computer (PC) side, graphical user interface (GUI) application is designed using Laboratory Virtual Instrument Engineering Workbench (LabVIEW) program as SCADA software to acquire and monitor data and control all system I/O. The system consists of hardware part and software part. The main part of hardware is a data acquisition card, and the software part includes data acquisition card control procedures and PC software. The system hardware developed is a low-cost alternative to commercially available systems that use USB controllers. The work has been implemented for temperature sensing and controlling and the results shown currently support the hardware and software developed. It can be used for biomedical analysis, industrial temperature loggers, industrial process, instrumentation controls and in SCADA system.
Investigation of Steel-Concrete Composite Beams with Different Types of Shear Connectors
Authors: Al-Darzi Suhaib Y. K. , Al-Juboory Inas M. A.
Published: June 2022

A ten steel-concrete composite beams subdivided into five groups formed from standard steel section (W4X13) connected to concrete slab are designed and constructed using three different types of mechanical shear connectors. A stud connector and regular circular hole perfobond connectors are used in addition to a newly suggested type of triangular hole perfobond connector. The beams are experimentally tested using two-point load beam test to investigate the effect of connector’s type on beam resistance at yielding and ultimate stages. The tests also investigate the deflection at mid-span and slip at the ends of the tested beams. It is found that the composite beams with perfobond connectors can develop a strength higher than those obtained with stud connectors, as well as the newly suggested triangular perfobond connector gives strength higher than the regular circular perfobond. Results also show that continuous distribution of perfobond connectors gives resistance more than those with separated perfobond connectors.
Experimental Investigation of the Bearing Pressure for Circular and Ring Footings on Sand
Authors: Al-Sumaiday Hashim G. Rasheed , Al-Tikrity Israa S. Hussain
Published: June 2022

This paper presents the results of laboratory model tests of bearing pressure of circular and ring footing on sand. The effects of the embedment depth, internal friction of sand and the ratio of the inner to the outer diameter of the ring footing have been studied, in order to understand the behavior of the sand under the ring footing comparing with the circular one. An optimum ratio of the inner to outer diameter of the ring footing have been indicated which was (0.4), at which the bearing capacity will be greater than the circular footing. Also, the results indicated that there was no interested effect of the embedment depth on that optimum ratio.
Effect of Gypsum Stabilization on Mechanical Properties of Compressed Earth Blocks
Authors: Amin Maher O.
Published: June 2022

There is a need for development of alternative materials for the building industry with low carbon footprint and at the same time saving energy. Clay has been used as a building material from the beginning of humankind. The Compressed Earth Blocks often referred to simply as CEB, is a type of manufactured construction material formed by the compression of the soil in a mold with the help of a manual or motorized press to form a regular block of appropriate shape and size. For the purpose of researches, the press is manufactured locally at Mosul Technical Institute. In the present work, the effect of semi-hydrate gypsum as stabilizer on some of the mechanical and physical properties of unfired CEB was determined. A series of test blocks were fabricated using a local soil stabilized with 0, 5, 10, 15, 20 and 25% semi-hydrate gypsum, for each of the precedent ratios, three percentages of mixing water were used 10, 20 and 30%, and compacted with a manual press. Results for compressive strength, flexural strength, water absorption and drying shrinkage are presented in the paper. Results show that the addition of semi-hydrate gypsum improves the mechanical and physical properties of CEB. These preliminary results reinforce their suitability for application in low cost buildings.
Comparison of Water Quality Index at Intakes of Water Treatment Plants in Baghdad City
Authors: Abdul –Rahman Eman , Ahmad Mohammad Fakhar Al-Deen
Published: June 2022

The studying of water quality (WQ) is to determine the competence of water source for different uses. Water Quality Index (WQI) is a mathematical device used to translate huge data for water testes to simple number, This number gives comprehensive idea to the water source quality level. In this study, many samples from selected points of Tigris river stage within the intakes of eight Water Treatment Plants (WTPs) of Baghdad city were collected and tested during (2009-2010) , These (WTPs) arranged according to itsposition from the north of Baghdad city to it’s south respectively as follows (Karkh ,Tigris– East ,Wathba, ,Karama ,Qadisiya ,Dora ,Wahda and Rashid in the south).Twenty parameters were tested for an average one sample of each parameter in each month within the year(2009-2010).Canadian Council of Ministry of the Environment (CCME,2001) procedure was used to determine (WQI) of the raw water in the intake of these (WTPs). Results showed that the best (WQI) was in the intake of Al-Karkh and the worst was in Al- Rashid (WTP). Another comparison for the suitability of the raw water in irrigation purpose was tested by comparing the average of each (T.D.S and EC. ) for a one year with the criteria of each of American Salinity Library (ASL) and with Russian classification(R.C), and the results showed high concentrations of salinity , so the irrigated soil with this raw water needs good drainage system.
Reportagens de guerra
Authors: Martinez Monica , Ruellan Denis , Yaméogo Lassané
Published: June 2022

Reportagens de guerra. Introdução