bluuebunny/crossref_metadata_2025 huggingface dataset:
BERMAIN SEBAGAI INTERVENSI UNTUK MENINGKATKAN KOMPETENSI SOSIAL ANAK
Authors: Muchtar Hendi Suhendraya , Razak Alifah Indalika Mulyadi
Published: February 2019

This study aims to examine the play stimulation model to improve children's social competence. The study involved 100 children in the kindergarten age group. The types of play in this study are divided into four games patterns, namely the solitary independent play, parallel play, associative play, and cooperative play. Each play pattern is tested with four dimensions of social competence, which consist of self-concept, ability to manage emotions, prosocial and social-academic behavior. The results of this study indicate that more than 50% of the four dimensions of social competence are effectively stimulated through cooperative play patterns. Cooperative play patterns are effective for stimulating self-concept dimensions (10 of 15 behaviors), emotional management abilities (9 of 18 behaviors), social academics (7 of 15 behaviors), and prosocial behavior (17 of 23 behaviors). The pattern of associative play effectively stimulates the dimensions of self-concept (3 of 15 behaviors), emotional management skills (7 of 18 behaviors), prosocial behavior (4 of 23 behaviors), and social academics (3 of 15 behaviors). The effective parallel play and solitary independent play patterns of each play only stimulate 1 social competence behavior.
Keywords: cooperative play, associative play, parralel play, solitary independent play, social Competencies
Penelitian ini bertujuan untuk menguji model stimulasi permainan untuk meningkatkan kompetensi sosial anak. Penelitian ini melibatkan 100 anak pada kelompok usia taman kanak-kanak. Jenis permainan pada penelitian ini terbagi ke dalam empat pola permainan, yaitu solitary independent play, parralel play, associative play, dan cooperative play. Setiap pola permainan diujikan dengan empat dimensi kompetensi sosial, yang terdiri dari konsep diri, kemampuan mengelola emosi, perilaku prososial dan sosial-akademik. Hasil penelitian ini menunjukkan bahwa lebih dari 50% empat dimensi kompetensi sosial efektif distimulasi melalui pola permainan cooperative play. Pola permainan cooperative play efektif untuk menstimulasi dimensi konsep diri (10 dari 15 perilaku), kemampan mengelola emosi (9 dari 18 perilaku), sosial akademik (7 dari 15 perilaku), dan perilaku prososial (17 dari 23 perilaku). Pola permainan associative play efektif menstimulasi dimensi konsep diri (3 dari 15 perilaku), kemampuan mengelola emosi (7dari 18 perilaku), perilaku prososial (4 dari 23 perilaku), dan sosial akademik (3 dari 15 perilaku). Pola permainan parralel play dan solitary independent play masing-masing efektif hanya menstimulasi 1 perilaku kompetensi social.
Kata Kunci: Anak Usia Dini, Bermain Kooperatif, Bermain Asosiatif, Bermain paralel, Bermain soliter, Kompetensi sosial
STIMULASI METODE PERMAINAN KREATIF BERDESAIN CREATIVE MOVEMENT DAN BUDI PEKERTI DALAM MENGEMBANGKAN KEMAMPUAN SPASIAL ANAK
Authors: Antara Putu Aditya
Published: February 2019

Abstrak
Tujuan penelitian ini adalah untuk mendapatkan informasi berdasarkan eksperimen tentang pengaruh metode permainan kreatif dan budi pekerti terhadap kemampuan spasial anak. Penelitian ini dilakukan terhadap anak yang belajar di kelompok B Taman Kanak-kanak yang ada pada Kecamatan Buleleng, Kabupaten Buleleng, Propinsi Bali pada tahun 2017. Sampel diambil menggunakan teknik multistage random sampling dengan 72 orang anak. Temuan empiris penelitian ini mengindikasikan bahwa terdapat pengaruh penggunaan gerak kreatif dan bermain peran terhadap kemampuan spasial anak, selain itu kemampuan spasial anak yang menggunakan gerak kreatif lebih tinggi daripada menggunakan bermain peran. Terdapat pengaruh interaksi antara metode permainan kreatif dan budi pekerti terhadap kemampuan spasial anak. Ditemukan juga bahwa kemampuan spasial anak yang mendapatkan gerak kreatif dan memiliki budi pekerti tinggi mendapat hasil yang lebih tinggi daripada kemampuan spasial anak yang mendapatkan bermain peran dan memiliki budi pekerti tinggi.
 
Kata kunci: gerak kreatif, budi pekerti, kemampuan spasial anak.
Abstract
The aims of this research was to obtain empirical information from experiment on the effect of the method of creative games and character to the spatial abilities of children. This research was conducted toward children who study in group B of kindergarten at Buleleng District, Buleleng Regency, Bali in 2017. Samples were taken using multistage random sampling technique with 72 children. The empirical findings of this study indicate that there are significant use of creative movement and role play in spatial abilities of children, in addition to the spatial abilities of children who use creative movement higher than using role play. There are significant interaction between method of creative play and character to the spatial abilities of children. It was also found that the spatial abilities of children who get creative movement and has a high character gets a higher yield than the spatial abilities of children who get to role play and have a high character.
 
Keywords: creative movement, character, spatial abilities of children.
GERAK DAN LAGU SEBAGAI MODEL STIMULASI PENGEMBANGAN KECERDASAN KINESTETIK ANAK USIA DINI
Authors: Respati Resa , Nur Lutfi , Rahman Taopik
Published: February 2019

This research is based on the facts in the field about the condition of early childhood education learning at currently that tendency is still using conventional learning. Learning to use still seem monotonous and have not been able to optimize aspects of child development in improving early childhood kinesthetic intelligence. Therefore, research was conducted to determine the contribution of movement and song learning in developing early childhood kinesthetic intelligence. This study used quasi-experimental methods Non-equivalent pre-test and post-test control group design. Data collection techniques conducted in this study using three techniques, namely structured observation, field notes, and documentation. Thee results showed that movement and song learning can provide contribute positively to improve kinesthetic intelligence early childhood significantly with a 95% confidence level.
Keywords: Early childhood, Kinesthetic-Intelligence, Motion, Songs
Penelitian ini dilakukan berdasarkan fakta di lapangan mengenai kondisi pembelajarann pendidikan anak usia dini saat ini yang kecenderungannya masih menggunakan pembelajaran konvensional. Pembelajaran yang digunakan masih terkesan monoton dan belum mampu mengoptimalkan aspek perkembangan anak dalam meningkatkan kecerdasan kinestetik anak usia dini. Maka dari itu, penelitian ini dilakukan untuk mengetahui kontribusi pembelajaran gerak dan lagu dalam mengembangkan kecerdasan kinestetik anak usia dini. Penelitian ini menggunakan metode kuasi eksperimen dengan melalui desain kelompok pre-test dan post-test. Teknik pengumpulan data yang dilakukan dengan menggunakan tiga teknik, yaitu observasi terstruktur, catatan lapangan, dan dokumentasi. Hasil penelitian menunjukkan bahwa pembelajaran gerak dan lagu dapat memberikan kontribunsi secaraa positif untuk  meningkatkan kecerdasan kinestetik anak usia dini secara signifikan dengan tingkat kepercayaan 95%.
Kata Kunci:  Anak Usia Dini, Kecerdasan kinestetik, Gerak, Lagu
PENINGKATAN KEPERCAYAAN DIRI ANAK MELALUI METODE TALKING STICK
Authors: Olivantina Rara Agista , Olivantina Opsasi , Suparno Suparno
Published: February 2019

This study aims to to described the process and lessons through the activities of talking stick method that would improve self confidence in kindergarten B TK ABA 01 Malang. The subject of this research totaled 14 children, a method of this research is research the act of referring to a model research the act of class of Kemmis and McTaggart which includes four stage: planning, action, observation, and reflection. This research consisting of 2 cycles, each cycle consists of twelve meeting. Data analysis technique used in this research is quantitative and quantitative data analysis. Qualitative data analysis by analyzing data from observation record, interview record, and a documentation note during the research by steps the reduction of the data, data display, and data verification. Quantitative data analysis with descriptive statistics that compares the results obtained from pre cycle, first cycle, and second cycle. The result of this research show that there is an improve in self confidence of children through the implementation of talking stick method, the average self confidence score of children on the pre cycle is 22, improved in the first cycle to 28 and the second cycle to 41.
 
Keywords: Early Chilhood, Self confidence, Talking stick method
Penelitian ini bertujuan untuk mendeskripsikan proses dan hasil pembelajaran melalui pelaksanaan metode talking stick yang dapat meningkatkan kepercayaan diri anak kelompok B TK ABA 01 Kabupaten Malang. Subyek penelitian ini berjumlah 14 anak. Metode penelitian yang digunakan mengacu pada model penelitian tindakan Kemmis dan McTaggart yang terdiri dari empat tahap yakni: perencanaan, tindakan, pengamatan dan refleksi. Penelitian ini terdiri dari dua siklus masing-masing siklus terdiri dari dua belas kali pertemuan. Teknik  analisis data digunakan dalam penelitian ini adalah analisis data kuantitatif dan kualitatif. Analisis data kualitatif dengan cara menganalisis data dari hasil catatan observasi, catatan wawancara dan catatan dokumentasi selama penelitian dengan langkah-langkah reduksi data, penyajian data dan verifikasi data. Analisis data kuantitatif dengan statistik deskriptif yaitu membandingkan hasil yang diperoleh dari pra tindakan, siklus pertama dan siklus kedua. Hasil penelitian ini menunjukkan adanya peningkatan kepercayaan diri anak melalui pelaksanaan metode talking stick, dapat dibuktikan dengan rata-rata skor kepercayaan diri anak pada pra tindakan sebesar 22, mengalami peningkatan pada siklus pertama menjadi 28 dan siklus kedua menjadi 41.
Kata Kunci:  Anak Usia Dini, Kepercayaan diri, Metode talking stick
KEMAMPUAN KOSAKATA (KATA DASAR DAN TURUNAN) PADA ANAK USIA 5-6 TAHUN DI PAUD AL-HAIDAR BANDUNG
Authors: Fauziyah Syifa Wasilatul , Sofyan Agus Nero
Published: February 2019

This research aims to describe capability of basic vocabulary and derivative vocabulary in children aged 5-6 years old in PAUD Al-Haidar Bandung. The method used is qualitative descriptive research method. The data of this research is every words which formed by children aged 5-6 years old in PAUD Al-Haidar Bandung. The result of this research shows that most children aged 5-6 years old use the basic vocabulary than derivative vocabulary. The reason of it, because children aged 5-6 years old are still in the acquisition stage of how to form a derivative vocabulary (affixation, reduplication, and compound words).
Key term: basic word, affixation, reduplication, compound words
Penelitian ini berjudul â€œKemampuan kosakata (kata dasar dan turunan) pada anak usia 5-6 tahun di PAUD Al-Haidar Bandung. Penelitian ini dilakukan dengan menggunakan metode kualitatif-dskriptif. Data dalam penelitian ini yaitu kata-kata yang di bentuk oleh anak usia 5-6 tahun di paud Al-Haidar Bandung. Hasil analisis dalam penelitian ini yaitu kebanyakan anak usia 5-6 tahun pada umumnya menggunakan kosakata dasar dibandingkan kosakata turunan seperti afiksasi, reduplikasi, dan kata majemuk. Hal yang menyebabkan hal tersebut terjadi dikarenakan anak usia 5-6 tahun masih dalam tahap pemerolehan bagaimana cara membentuk kosakata turunan (afiksasi, reduplikasi dan kata majemuk). 
Kata kunci: kata dasar, proses afiksasi, pengulangan, pemajemukan.
LA RÚBRICA COMO ELEMENTO DE EVALUACIÓN: APLICACIÓN Y ANÁLISIS EN DISCIPLINAS HUMANÍSTICAS
Authors: Velasco García Rocío , Pérez Lozano Manuel , Díaz Rodríguez Antonio José , Jordano Barbudo María Ángeles , Márquez Moreno Carlos , Soria Mesa Enrique , Sanchidrián Torti José Luis , Bonilla Cerezo Rafael , Romero González Dámaris , Muñoz Gallarte Israel , Salas Almela Luis , Sánchez Dueñas Blas , Mata Torres Josefa , Carrillo Calderero Alicia , De Cavi Savina , García Ríos José Mª
Published: February 2019

El presente artículo describe el desarrollo de un Proyecto Docente sobre la difusión, implementación y evaluación de la herramienta de la rúbrica de evaluación en asignaturas humanísticas, así como el fomento de la comunicación entre alumnado y profesorado en relación con los procesos e instrumentos de evaluación y aprendizaje por tareas, en base a los objetivos de evaluación por competencias. Las acciones han ido dirigidas a 18 asignaturas, (todas de la rama de humanidades), y en la que han intervenido profesorado de 4 departamentos de la Facultad de Filosofía y Letras de la Universidad de Córdoba. La aplicación de la rúbrica de evaluación en las diversas asignaturas relacionadas con el proyecto afectó a más de 850 alumnos de 5 titulaciones diferentes. Tras un proceso de estudio, elaboración, revisión e implementación, se llegó a una actividad evaluación dirigida tanto a el alumnado como al profesorado, que se resume en un alto grado de satisfacción por ambas partes y en la continuada aplicación de esta herramienta en cursos posteriores.
GUÍA UCO PARA LA ELABORACIÓN Y EVALUACIÓN DE UN TFG: ANÁLISIS DE PROBLEMAS Y PROPUESTA SINCRÉTICA DE SOLUCIONES
Authors: Rodríguez Tapia Sergio , Jaén-Moreno María José , García Ramos María Dolores , Jacinto García Eduardo José
Published: February 2019

El presente proyecto surge para dar respuesta a una serie de problemas que se dan durante el proceso de elaboración y defensa de los Trabajos Fin de Grado en el marco de la Universidad de Córdoba. A pesar de que actualmente existen esfuerzos por mejorar los criterios aplicados en los distintos centros de la UCO, se ha podido comprobar una falta de uniformidad en las guías y en las recomendaciones ligadas a la realización de los TFG, algo que, salvando la comprensible adecuación a las características de cada área, puede suponer un riesgo para la consecución de un sistema de evaluación justo. Además, algunas facultades carecen de criterios públicos de evaluación, lo que puede dar lugar a situaciones arbitrarias o irregulares. Para ello, en primer lugar, se ha analizado la opinión de profesorado y alumnado con respecto al TFG. Con el fin de resolver las deficiencias encontradas, se ha propuesto una solución que englobe todos los centros que forman la UCO: una herramienta que contemple las competencias básicas reconocidas por la legislación actual, comunes a todos los grados, y que tengan naturaleza transdisciplinar, para, a partir de ahí, poder construir un sistema de evaluación más razonable, coherente y uniforme para toda la Universidad de Córdoba.
MOTIVACIÓN DEL APRENDIZAJE DE LOS ESTUDIANTES A TRAVÉS DE LA TÉCNICA DE GAMIFICACIÓN EN LOS GRADOS DE INGENIERÍA, EVALUACIÓN DE LAS VARIABLES DE RENDIMIENTO-FATIGA
Authors: Lozano-Lunar Angélica , Romero-Esquinas Álvaro , Fernández-Ledesma Enrique , Jiménez José Ramón , Fernández José María
Published: February 2019

Este trabajo pretende mejorar el proceso de enseñanza-aprendizaje de diferentes asignaturas del Grado en Ingeniería Civil y del Grado en Ingeniería de Recursos Energéticos y Minería de la Universidad de Córdoba (España), con el uso de prácticas docentes innovadoras que mejoren el rendimiento académico resultados de los estudiantes. La introducción de la técnica de gamificación ha permitido una participación más activa de los estudiantes y ha fomentado la adquisición de habilidades, así como el aprendizaje en un ambiente más relajado. El clima de trabajo se ha mantenido más activo. Además, esta técnica ha permitido detectar el punto de fatiga de los alumnos durante las clases. La herramienta utilizada para implementar la técnica de gamificación y evaluar el nivel académico de los alumnos durante las clases ha sido el acceso gratuito a la plataforma web "Kahoot", que es un sistema de respuestas en el aula basado en juegos para escuelas, universidades y empresas. Puede descargarlo en sus dispositivos electrónicos y / o acceder a él a través de su sitio web (https://kahoot.it/#/). Con esto, los estudiantes han utilizado sus teléfonos móviles o dispositivos electrónicos para contribuir a su aprendizaje en el Aula, y dejar de lado su uso inapropiado (redes sociales, noticias deportivas, etc.), evitando uno de los principales problemas que los profesores tienen actualmente en clase. Para cada conferencia, los cuestionarios en línea se llevaron a cabo utilizando la plataforma de aprendizaje Kahoot compuesta de preguntas asociadas con los conceptos teóricos / prácticos dados. Este procedimiento ha permitido una evaluación continua del alumno, e indirectamente del profesor, ya que se verifica en tiempo real si hay algún concepto que deba reforzarse. Mientras se llevaban a cabo los cuestionarios, se ha observado que los mismos estudiantes han participado en la aclaración de posibles preguntas de sus compañeros e incluso han hecho que el profesor reconsidere la forma de explicar y presentar la lección, lo que demuestra que esta técnica ha promovido la retroalimentación entre alumno-maestro y estudiante-alumno, fomentando un buen clima de trabajo y terminando las sesiones de una manera divertida, lo que ha permitido aumentar el rendimiento del alumno. Los resultados obtenidos han reflejado una evaluación final positiva de la asignatura para la mayoría de los alumnos que han participado en las clases. Con respecto a los cursos anteriores, los estudiantes han tenido menos dificultades para aprobar el tema y en la adquisición de habilidades. Es importante resaltar el grado de satisfacción de los alumnos, y en especial de los alumnos que repiten la asignatura, que han logrado aprobar el tema de una manera más fácil gracias al uso de técnicas de gamificación.
APLICACIÓN DE TÉCNICAS PARTICIPATIVAS PARA LA ASIMILACIÓN DE CONTENIDOS Y SU EVALUACIÓN
Authors: Torres Irina , De la Haba Mª José , Montesinos Pilar , Prados Francisco , Fernández Irene
Published: February 2019

En los últimos años, la educación se ha centrado en el aprendizaje y en el desarrollo de métodos docentes enfocados hacia la evaluación continua y el fomento de la motivación y participación del alumnado. Con estos fines, en este Proyecto de Innovación Docente se han aplicado técnicas de gamificación y de evaluación crítica y objetiva entre compañeros. Se utilizó la plataforma “Kahoot” como medio para la gamificación, destacando la elevada satisfacción alcanzada por los alumnos, que confirmaron que fue de gran ayuda en el proceso de aprendizaje. En cuanto a los cuestionarios realizados, se resalta la menor atención por parte de los alumnos a la exposición de los trabajos de sus compañeros en comparación con las clases prácticas y la diferencia entre las calificaciones otorgadas por ellos y las del profesor, lo cual destaca la necesidad de fomentar el espíritu crítico en el alumnado. Cabe concluir que la gamificación es un método eficaz para fomentar la participación en clase y mejorar la asimilación de contenidos, así como una herramienta útil que permite al profesor incidir en aquellos conceptos menos entendidos.
Morphology of Serrated Glass Facades. Repetitive and Non-Repetitive Serration. Single and Double Serrated Facades
Authors: BRZEZICKI Marcin
Published: February 2019

Serrated building envelopes are a very eye-catching element of contemporary architecture. This type of façade in plan resembles the edges of a serrated blade, hence the name. Serrated facades substantially influence the building’s tectonics understood as the relationship between the structural and the artistic form. They also have a major impact both on building physics (increased surface of heat exchange compared to flat facades, solar avoidance – decreased solar gains if properly designed) and on visual appeal. This paper examines façade morphology and analyses regular (repetitive) and irregular (non-repetitive) serration of façades and its influence on the aesthetic quality of the envelope. The morphological analysis also includes the direction of the serration. An exceptional feature of serrated façades is that the optical phenomena on the façade change depending on the viewing angle. The presented paper is based on case studies with special attention to morphological and qualitative analysis. Recently completed case studies serve as visual (photographs) and graphical illustrations (diagrammatic drawings). A review of technical and engineering justifications of the use of serrated facades is also included and briefly explained.
Space for University Students: Specific Requirements for “Self-Learning” Environment – Theoretical Approach
Authors: LASIEWICZ-SYCH Angelika
Published: February 2019

The paper presents a humanistic approach in investigation of people-environment relations within university buildings. Architecture of the university buildings is considered to be a learning environment from the position of “critical pedagogy of place”. It emphasizes the importance of the place itself expressed by the specific link between building and its location understood mainly in environmental terms – not only as a functional node but also as a vital element of cultural and also natural environment (sustainable development). It also presents some of the contemporary research on learning environment focused on the topic of students’ engagement – influencing learning success, and its multiple relation with university building facilities and architecture. The theoretical considerations are illustrated by some examples of university buildings from US. The paper is a theoretical introduction to the following paper: “Students’ assessment of environmental conditions in university buildings – the research report”, which describes the method and results of research (by the same author) proceeded in a few Polish university buildings.
Impact of Envelope Structure on the Solutions of Thermal Insulation from the Inside
Authors: ORLIK-KOŻDOŃ Bożena , SZYMANOWSKA-GWIŻDŻ Agnieszka
Published: February 2019

The article presents chosen issues related to the heat insulation of complex structure walls. Subjects covered in this study are building partitions that had been constructed in the so called “Prussian wall” technique and are located in the Upper Silesia region. Their technical condition as well as usable state are not satisfactory, especially in the light of thermal protection. One way of increasing their standard is insulating partitions. In case of historical monuments or rich architectural facades, typical insulation methods (the ETICS system) will not apply. Thus, the solution is to insulate external walls on the inside surface. This, however, causes moisture content difficulties, which means that steam diffusing through partition undergoes the process of condensation.

The authors suggest their own solutions to the problem of insulating diverse external partitions and base them on the research conducted in situ. They use The School of Music in Gliwice as an example. The measurement results obtained here were used in “heat-water content” modeling of walls for which WUFI 2D programme was applied. As shown in numerical analysis, the thickness and the sort of insulating layer have a key impact on the partition water content including wooden elements of construction. In case of walls that are 25 cm thick, the water content in the wall itself and wooden elements increased alongside the insulation material thickness, but it did not excess the permissible level, otherwise wood degradation would ensue. For “Prussian walls” that are 12 cm thick and insulated on the inside we observe exceeding the level of 20% water content, which is critical for wood durability.

These results present elementary problems that occur when buildings with “Prussian walls” construction undergo thermo insulation. Restoration process must be a compromise between the need to retain the historical aspect of a building and the need to bring them to modern heat and usability standards. On the basis of numerical analysis, possible solutions, which meet these criteria, have been proposed.
Research on Thermal Conditions in Ventilated Large Space Building
Authors: PALMOWSKA Agnieszka , MICZKA Gabriel
Published: February 2019

The aim of the paper was to verify whether it is possible to predict thermal indoor environment in an industrial facility, characterized by large cubature and significant heat sources using a computational fluid dynamics (CFD) technique. For this purpose, thermal imaging measurements were carried out to obtain boundary conditions, followed by numerical simulations of the airflow using the Ansys CFX software. Direct results of temperature and velocity distribution of air were analyzed for two different cases. The possibility of reducing the supply airflow rate without affecting either technology safety or thermal comfort was examined. The results of calculations can be helpful for improving the energy efficiency of the tested object by indicating the optimal operating modes for given operating conditions of the production hall.
Varying Influence of Dairy Manure Injection on Phosphorus Loss in Runoff over Four Years
Authors: Jahanzad Emad , Saporito Louis S. , Karsten Heather D. , Kleinman Peter J. A.
Published: February 2019

Surface application of manure on no‐till farms can exacerbate P losses in runoff, contributing to the eutrophication of surface waters. We monitored 12 400‐m2 field plots over 4 yr to compare P losses in surface runoff and lateral subsurface flow with shallow disk injection and broadcast application of dairy manure. Given the substantial variability in annual P losses, as well as a gradual, annual buildup of residual soil test P, significant differences in runoff P losses were detected in only 1 of 4 yr: in 2014, total P losses in runoff were 68% greater from broadcast manure plots than injected manure plots. Dissolved and particulate P were roughly even in their contribution to runoff. Even so, there were significant relationships between annual dissolved P losses and P in the soil surface, which pointed to soils as a regular source of P in runoff. Overall, results confirm the potential for injection to reduce P loss in runoff relative to broadcast application, but because in a few sampling dates injection resulted in greater losses, this study also highlights the importance of assessing mitigation benefits of manure application practices over longer timeframes.

Core Ideas

Broadcast vs. injected manure resulted in greater P loss in 1 of 4 yr and 13 of 17 dates.

Phosphorus losses in runoff mainly occurred in large precipitation events.

Lack of actively growing crops resulted in large P losses in winter and early spring.
Evaluating Leaf Wax and Bulk Leaf Carbon Isotope Surrogates for Water Use Efficiency and Grain Yield in Winter Wheat
Authors: Liu Xiuwei , Feakins Sarah J. , Dong Xuejun , Xue Qingwu , Han Jie , Marek Thomas , Leskovar Daniel I. , Neely Clark B. , Ibrahim Amir M. H.
Published: February 2019

Bulk leaf carbon isotopic composition (δ13Cbulk) has been widely used to investigate leaf level water use efficiency (WUEl) in efforts to boost grain yield relative to crop water use. Although widely used for isotopic analyses, the bulk leaf represents a complex mixture of compounds. Single‐compound isotopic analyses carry diagnostic advantages over bulk analyses in a range of applications and may also serve as surrogates for WUEl and grain yield in crops. This study tests whether compound‐specific carbon and hydrogen isotopes of leaf wax n‐alkanes (δ13Calk and δDalk) and n‐alcohols (δ13Calc) could be used as surrogates for WUEl and grain yield using conventional δ13Cbulk as a reference. Ten winter wheat (Triticum aestivum L.) cultivars were planted under two irrigation treatments (full and deficit irrigation) at Uvalde (wet location) and Amarillo (dry location), TX, during two growing seasons. There were significant relationships between δ13Calk or δDalk and δ13Cbulk, indicating they can all serve as surrogates for WUEl in most cases. Compared with δ13Cbulk, we found stronger relationships between δ13Calk at Uvalde or δDalk under deficit irrigation at Amarillo and grain yield. The δ13Calk also had higher broad‐sense heritability than δ13Cbulk, indicating larger cultivar effects in δ13Calk than in δ13Cbulk. In contrast, the δ13Calc was not consistently related with δ13Cbulk or grain yield. Our study introduces the idea that δ13Calk and δDalk may supplement conventional δ13Cbulk with potential to assist in the breeding process when selecting for high‐WUE and high‐yielding cultivars.
Introgression Analysis and Morphological Characterization of an Arachis hypogaea × A. diogoi Interspecific Hybrid Derived Population
Authors: Hancock Wesley G. , Tallury Shyam P. , Isleib Thomas G. , Chu Ye , Ozias-Akins Peggy , Stalker H. Thomas
Published: February 2019

Cultivated peanut (Arachis hypogaea L.) is an economically important crop grown around the world. Compared with the entire Arachis genus, cultivated peanut germplasm has low levels of genetic diversity for several economically important traits, resulting in the need for alternative sources of favorable alleles. Wild diploid species of Arachis are a source of such alleles to improve cultivated peanut for many economically important traits. An A. hypogaea × A. diogoi Hoehne introgression population was produced via the triploid–hexaploid method; the fourth generation after tetraploidy was used to initiate this study. The introgression lines were genotyped using a single nucleotide polymorphism (SNP) marker array to estimate the percentage of A. diogoi chromatin introgression. Morphologically, the introgression lines varied for an array of measured traits, with the majority being intermediate to the two parents. The average amount of A. diogoi genome introgressed was 8.12% across the tetraploid genome and ranged from 3.00 to 18.14% on individual chromosomes. The average A. diogoi introgression across all lines was 7.70% and ranged from 0.17 to 51.12%. Principal component analysis of morphological data and SNP markers revealed similarities and groupings of introgression lines. This introgression population demonstrates the potential of using wild diploid Arachis species for peanut improvement and has great potential for use in cultivated peanut breeding programs.
Quantitative Trait Loci for Cold Tolerance in Chickpea
Authors: Mugabe Deus , Coyne Clarice J. , Piaskowski Julia , Zheng Ping , Ma Yu , Landry Erik , McGee Rebecca , Main Doreen , Vandemark George , Zhang Hongbin , Abbo Shahal
Published: February 2019

Fall‐sown chickpea (Cicer arietinumL.) yields are often double those of spring‐sown chickpea in regions with Mediterranean climates that have mild winters. However, winter kill can limit the productivity of fall‐sown chickpea. Developing cold‐tolerant chickpea would allow the expansion of the current geographic range where chickpea is grown and also improve productivity. The objective of this study was to identify the quantitative trait loci (QTL) associated with cold tolerance in chickpea. An interspecific recombinant inbred line population of 129 lines derived from a cross between ICC 4958, a cold‐sensitivedesitype (C. arietinum), and PI 489777, a cold‐tolerant wild relative (C. reticulatumLadiz), was used in this study. The population was phenotyped for cold tolerance in the field over four field seasons (September 2011–March 2015) and under controlled conditions two times. The population was genotyped using genotyping‐by‐sequencing, and an interspecific genetic linkage map consisting of 747 single nucleotide polymorphism (SNP) markers, spanning a distance of 393.7 cM, was developed. Three significant QTL were found on linkage groups (LGs) 1B, 3, and 8. The QTL on LGs 3 and 8 were consistently detected in six environments with logarithm of odds score ranges of 5.16 to 15.11 and 5.68 to 23.96, respectively. The QTLCT Ca‐3.1explained 7.15 to 34.6% of the phenotypic variance in all environments, whereas QTLCT Ca‐8.1explained 11.5 to 48.4%. The QTL‐associated SNP markers may become useful for breeding with further fine mapping for increasing cold tolerance in domestic chickpea.
An Investigation of Plume Response to Soil Vapor Extraction and Hypothetical Drum Failure
Authors: Behar Hannah R. , Snyder Emily E. , Marczak Stanislaw , Salazar Larry J. , Rappe Bobbie , Fordham Gerald F. , Chu Shaoping P. , Strobridge Daniel M. , Birdsell Kay H. , Miller Terry A. , Rich Kent C. , Stauffer Philip H.
Published: February 2019

Core Ideas

Soil vapor extraction (SVE) wells are an effective interim remediation technique.

Flow and transport modeling assists in evaluation of vapor plume behavior.

Plume simulations assuming drum failure and SVE provide a framework for remediation planning.

A small borehole subset could be monitored for detection of VOC releases due to drum failure.

Soil vapor extraction (SVE) has been used at sites across the Department of Energy complex, including sites where legacy subsurface wastes represent a potential source of groundwater contamination. At Los Alamos National Laboratory (LANL), leakage from waste drums buried at an inactive chemical waste site has created a subsurface vapor plume of volatile organic compounds (VOCs). Soil vapor extraction operation in 2015 and rebound testing through 2017 were successful in reducing the plume's mass and mitigating VOC migration toward the water table. However, the possibility that waste drums could fail and release VOCs could pose a challenge in the future. To explore the impacts of drum failure, as well as the capabilities of SVE remediation, we simulated hypothetical contaminant release scenarios and subsequent SVE remediation. Three‐dimensional subsurface VOC behavior, including advection, diffusion, and plume interactions with topography, were simulated using the porous flow simulator Finite Element Heat and Mass Transfer. Simulations of future site conditions have allowed identification of “sentry” boreholes that can be monitored for early detection in case of drum failure. Sentry boreholes can also be used to set concentration thresholds above which SVE should be initiated. For the LANL site, simulations show that SVE can be started 3 yr following drum failure and remain a viable remediation tool. More broadly, the principles outlined in this work can be used to support remediation planning at other subsurface waste sites. Predictive models of future releases can be analyzed to set concentration threshold values, guide selection of sentry boreholes, and increase operational efficiency.
Analogue Fracture Experiments and Analytical Modeling of Unsaturated Percolation Dynamics in Fracture Cascades
Authors: Noffz Torsten , Dentz Marco , Kordilla Jannes
Published: February 2019

Core Ideas

Mass redistribution at unsaturated fracture intersections depends on free‐surface flow modes.

A Washburn‐type flow regime is recovered via an analytical solution for capillary fracture inflow.

A Gaussian transfer function predicts mass partitioning for arbitrary‐sized fracture cascades.

Infiltration and recharge dynamics in fractured aquifer systems often strongly deviate from diffuse Darcy–Buckingham type flows due to the existence of a complex gravity‐driven flow component along fractures, fracture networks, and fault zones. The formation of preferential flow paths in the unsaturated or vadose zone can trigger rapid mass fluxes, which are difficult to recover by volume‐effective modeling approaches (e.g., the Richards equation) due to the nonlinear nature of free‐surface flows and mass partitioning processes at unsaturated fracture intersections. In this study, well‐controlled laboratory experiments enabled the isolation of single aspects of the mass redistribution process that ultimately affect travel time distributions across scales. We used custom‐made acrylic cubes (20 by 20 by 20 cm) in analog percolation experiments to create simple wide‐aperture fracture networks intersected by one or multiple horizontal fractures. A high‐precision multichannel dispenser produced gravity‐driven free‐surface flow (droplets or rivulets) at flow rates ranging from 1 to 5 mL min−1. Total inflow rates were kept constant while the fluid was injected via 15 (droplet flow) or three inlets (rivulet flow) to reduce the impact of erratic flow dynamics. Normalized fracture inflow rates were calculated and compared for aperture widths of 1 and 2.5 mm. A higher efficiency in filling an unsaturated fracture by rivulet flow observed in former studies was confirmed. The onset of a capillary‐driven Washburn‐type flow was determined and recovered by an analytical solution. To upscale the dynamics and enable the prediction of mass partitioning for arbitrary‐sized fracture cascades, a Gaussian transfer function was derived that reproduces the repetitive filling of fractures, where rivulet flow is the prevailing regime. Results show good agreement with experimental data for all tested aperture widths.
Secondary frequency regulation scheme based on improved virtual synchronous generator in an islanded microgrid
Authors: Jiang Kun , Su Hongsheng , Sun Ding
Published: February 2019

To aim at the defects of the traditional VSG (virtual synchronous generator) control schemes to only complete the primary frequency regulation equivalent to droop control, and not to realize the secondary frequency regulation, this paper proposes a new control scheme to realize the secondary frequency regulation of the VSG, such that system frequency can return to the rated value. In this method, the torque change process of the rotor of synchronous generator is firstly analyzed when the system active power fluctuates. And then, a novel secondary frequency regulation control strategy of the VSG is proposed, where the small-signal model of power transmission of the VSG is established and transfer function is analyzed, and parameters design and stability analysis of the control system are conducted. Finally, simulation experiments show the correctness and effectiveness of the proposed method.
Optimal fuzzy iterative learning control based on artificial bee colony for vibration control of piezoelectric smart structures
Authors: Bai Liang , Feng Yun-Wen , Li Ning , Xue Xiao-Feng
Published: February 2019

Combining P-type iterative learning (IL) control, fuzzy logic control and artificial bee colony (ABC) algorithm, a new optimal fuzzy IL controller is designed for active vibration control of piezoelectric smart structures. In order to accelerate the learning speed of feedback gain, the fuzzy logic controller is integrated into the ANSYS finite element (FE) models by using APDL (ANSYS Parameter Design Language) approach to adjust adaptively the learning gain of P-type IL control. For improving the performance and robustness of the fuzzy logic controller as well as diminishing human intervention in the operation process, ABC algorithm is used to automatically identify the optimal configurations for values in fuzzy query table, fuzzification parameters and defuzzification parameters, and the main program of ABC algorithm is operated in MATLAB. The active vibration equations are driven from the FE equations for the dynamic response of a linear elastic piezoelectric smart structure. Considering the vibrations generated by various external disturbances, the optimal fuzzy IL controller is numerically investigated for a clamped piezoelectric smart plate. Results demonstrate that the proposed control approach makes the feedback gain has a fast learning speed and performs excellent in vibration suppression. This is demonstrated in the results by comparing the new control approach with the P-type IL control.
The effectiveness of nonlinear integral positive position feedback control on a duffing oscillator system based on primary and super harmonic resonances
Authors: Amer Y. A. , EL-Sayed A. T. , Abdel-Wahab A. M. , Salman H. F.
Published: February 2019

In this paper, we applied three different control methods; Positive Position Feedback (PPF), Integral Resonance Control (IRC) and Nonlinear Integrated Positive Position Feedback (NIPPF) added to a Duffing oscillator system subjected to harmonic force. An analytic solution is introduced using the multiple scales perturbation technique (MSPT) to solve the nonlinear differential equations, which simulate the system with NIPPF controller. Before and after control at the primary and superharmonic resonances, the nonlinear systems’ steady-state amplitude and stability are studied and examined. The influences of various parameters of the system after being connected to NIPPF are illustrated. Optimum working conditions for the NIPPF controller are obtained at internal resonance ratio 1:1. A Comparison is also made to validate the closeness between the numerical solution and the analytical perturbative one at time-history and frequency response curves (FRC). Finally, a comparison with the available results in the literature is presented. From this comparison, we find that the best control to the system is via the NIPPF controller.
On-line prediction remaining useful life for ball bearings via grey NARX
Authors: Niu Qiming , Tong Qingbin , Cao Junci , Zhang Yihuang , Liu Feng
Published: February 2019

The Huge vibration data are generated continuously by many sensors in daily high-speed rotating machinery operations. Accurate online prediction based on big vibration data streaming can reduce the risks related to failures and avoid service disruptions. This paper presents a hybrid nonlinear autoregressive network with exogenous inputs (NARX) model to forecast the remaining useful life of ball bearings through health index based on big vibration data streaming. This approach is validated by a real data from PRONOSTIA experimentation platform and industrial test rig compared with backpropagation neural network (BP), Elman and general regression neural network (GRNN) prediction model. Root mean square error, mean absolute error and correlation coefficient were used as performance indexes to evaluate the prediction accuracy of these models. The mean absolute error, the root mean square error and the correlation coefficient of hybrid NARX model evaluation index are 2.04, 2.85 and 0.98 respectively. It shows that the model presented in this paper has higher prediction accuracy. It can meet the needs of actual ball bearing remaining useful life prediction and also provide reference in other fields.
Convection Type Electric Stove with Air Ionization
Authors: Романчиков Сергей , Romanchikov Sergei
Published: February 2019

Increasing the efficiency of electric stoves currently remains an unsolved problem. The present study proposes a new design scheme for the electric convection stove with an air ionization device (Electric Stove PE-UIEV). This will reduce energy costs and speed up the cooking process. The stove in question is based on the method of electrothermal convection of heat-exchange surfaces of the frying deck. The proposed design reduces the formation of carcinogenic substances and improves the taste of fried and stewed dishes. The improved device increases the heat transfer coefficient from the burner surface to the cooker by 3 times since it creates better conditions for electrothermal convection. Treating air with electricity gives it adhesive properties: the air sticks to grounded surfaces of boilers. Ionized air intensively performs the function of heat carrier. Ionization reduces carcinogenic substances by 2–4 times and disinfects of ready-made dishes. The practical significance of the technical solution lies in the fact that the proposed design reduces the load on the ventilation and air conditioning system. In addition, the stove can be used for cooking in restricted (closed) spaces, and it improves the taste quality indicators. Unlike other stoves, this one reduces hot air circulation and, thus, its losses.
Controlling as a Basis for Effective Management in Enterprises of the Agro-Industrial Complex
Authors: Жидкова Елена , Zhidkova Elena
Published: February 2019

The agro-industrial complex is the leading sector of the country’s economy, which forms its agri-food market, as well as its food and economic security. Enterprises of the agro-industrial complex are currently facing certain difficulties, which are caused by the imposed sanctions and problems of import substitution. The agro-industrial complex, like any other complex multi-level system, needs effective management. It can function and develop successfully only if its management makes timely and reasonable strategic and operational decisions and coordinates the activities of all structural divisions in order to achieve common goals. The difficulties mentioned above have shaped the need to develop new approaches for more efficient management of agricultural enterprises. One of the ways to improve management in agribusiness enterprises is to build a controlling system. Controlling integrates accounting, control, planning, and analysis into a single, self-managed system. The article features the concept and essence of controlling, which is the basis for the effective management of any agricultural enterprise. One of the main reasons for the introduction of controlling in the enterprises of the agro-industrial complex is the need for a system integration of various aspects of business process management in the organizational structure of the enterprise, as controlling provides a methodological and instrumental base to support the main management functions: planning, control, regulation, accounting, and analysis. The organization, production, and development of timely high-quality controlling not only determines the efficiency of the agro-industrial complex enterprise management, but also ensures the processes of making sound management decisions that are aimed at stabilizing the financial situation, smoothing the risks of bankruptcy, as well as the preservation of assets, intellectual property, and innovation.
Specifics of the HACCP Program at Nutrition Departments on Health Institutions
Authors: Бадмаева Ирина , Badmaeva Irina , Гамкова Ольга , Gamkova Olga , Мищенков Игорь , Mishchenkov Igor
Published: February 2019

Tuberculosis remains a widespread social disease, both in Russia and in the Republic of Buryatia. According to the Ministry of Health of the Republic of Buryatia, the region ranked 8th according to tuberculosis morbidity in 2017 in the Siberian Federal district. It was preceded by the Republic of Tuva, Irkutsk, Novosibirsk, Kemerovo regions, Altai territory, Omsk region, and Krasnoyarsk region. The Republic ranked 18th among all the federal entities of the Russian Federation. Tuberculosis remains one of the top 10 mortality factors in the world. The disease affects various organs, a fairly easy mode of infection, and a long treatment period. Therefore, it requires an intensive medical treatment and a high-calorie diet provided by nutrition departments of medical institutions. The present paper features the experience of nutrition departments of the Republican Clinical Tuberculosis Dispensary, i.e. the aspect of food production for a certain population group. The research defines the critical control points of the technological stage of production, taking into account the existing risks and maximum permissible values. The authors developed some elements of the HACCP program in the form of maps and block diagrams of each stage of the technological process. The research results make it possible to create a quality management program based on the principles of HACCP fat nutrition department of the Republican Clinical Tuberculosis Dispensary.