bluuebunny/crossref_metadata_2025_split huggingface dataset:
EVALUATION OF Cassia sieberiana (DC) AND Vernonia amygdalina (Del.) AGAINST Callosobruchus maculatus (F.) INFESTING STORED BAMBARA GROUNDNUT Vigna subterranea (L.) Verdc.)
Authors: Kabir Baba Gana , Audu Abdullahi , Gambo Farouk M. , Bukar Baale 
Published: August 2023

<p>The insecticidal activity of<strong><em> </em></strong><em>Cassia sieberiana </em>(DC) and <em>Vernonia amygdalina </em>(Del.) aqueous extract against <em>Callosobruchus maculatus </em>(F.) in treated bambara groundnut was evaluated under laboratory conditions (25 – 29°C and 56 – 70% r.h.). Seeds were treated separately at four concentrations (2, 4, 6 and 8 ml/100g of seeds) of both plants aqueous extracts. Pirimiphos methyl applied at 8 mg a.i./kg was included as positive control. Data collected were adult mortality, number of adult progeny (F<sub>1</sub> and F<sub>2</sub>), percentage seed damage, percentage weight loss and germination capacity. Results showed that increasing concentration of both plant extracts and period of exposure to treated seeds significantly (<em>P</em>&lt;0.05) increased adult mortality levels from 16.9±2.9 to 100%. Furthermore, both plant extracts applied at 8 ml/100 g of seeds were comparable to pirimiphos-methyl after 96 h of exposure. The plant extracts significantly (P&lt;0.05) reduced number of adult progeny, percentage seed damage and percentage weight loss, which all progressively declined with increasing concentration from 2 to 8 ml. Both plant aqueous extracts had no effect on germination capacity of treated seeds. For all the parameters measured, the plant extracts tested showed significantly higher biological activity in treated seeds compared to the untreated control. The present results suggest that these plant aqueous extracts have the potential to control <em>C. maculatus</em> populations in stored bambara groundnut. </p><p> </p>
EFFECT OF SOAKED AND FERMENTED AFRICAN LOCUST BEAN (Parkia biglobosa) SEED MEAL ON GROWTH PERFORMANCE, HAEMATOLOGICAL PROFILE AND NUTRIENT DIGESTIBILITY OF BROILER CHICKENS
Authors: Tamburawa M.S. , Ogundipe S.O. , Tegbe T.S.B. , Olugbemi T.S. , Makinde O.J. 
Published: August 2023

<p>African locust bean (<em>Parkia biglobosa</em>) seed is rich in protein and has recently found its way into the feed industry. This research was conducted to determine the growth performance, haematological profile and nutrient digestibility by broiler chickens fed diets containing soaked and fermented African locust bean <strong>(</strong><em>Parkia biglobosa</em><strong>) </strong>seed meal (SFALBSM). Five diets were formulated in which SFALSBM was included at graded levels of 0, 7.5, 15, 22.5 and 30% designated as T1, T2, T3, T4 and T5 respectively. Two hundred and twenty five (225) day old broiler chickens (Marshall Strain) were fed these diets in a completely randomized design and each treatment was replicated three times with 15 birds per replicate. The experiment lasted 8 weeks (4week starter phase and 4week finisher phase). The results of performance of broiler chicks at starter phase showed there were differences (P&lt;0.05) in final body weight (734.25 - 937.81 g) and total weight gain of birds (679.13 -898.31 g). T3 had the highest body gain compared to other treatments. Similarly, final body weight of broilers at finisher revealed that birds fed T3 and T4 (2786.14 g and 2686.14 g) were higher (P&lt;0.05) than those fed other diets. Birds fed T5 had the lowest value (2312.73g). There were differences (P&lt;0.05) in the feed conversion ratio (3.26 - 4.55) and feed cost per kilogram gain (222.33 - 316.70 <span style="text-decoration: line-through;">N</span>/kg gain). The best feed conversion ratio was observed on birds fed T3 diet. The results of blood analysis showed that there were differences (P &lt; 0.05) in the packed cell volume (23.33 - 27.67 %), total glucose (129.22 - 161.01 mmol/l), and red blood cell (3.30 - 4.29 X10<sup>6</sup>/l). There were no effect (P &gt;0.05) on digestibility of dry matter, crude protein and ash. The crude fibre, ether extract and nitrogen free extract digestibility were affected by treatments (P&lt;0.05). Birds fed T3 had highest crude fibre digestibility value (P&lt;0.05). It was concluded that soaked and fermented African locust bean seed meal can be included in broiler chickens diets up to 15% dietary level at the starter phase and 22.5% at the finisher phase without any adverse effect on performance, haematological profile and nutrient digestibility.</p>
SHEDDING OF FRUITING STRUCTURES IN COTTON: FACTORS, COMPENSATION AND PREVENTION
Authors: Tariq Muhammad , Yasmeen Azra , Ahmad Shakeel , Hussain Nazim , Afzal Muhammad Naveed , Hasanuzzaman Mirza 
Published: August 2023

<p>The fruiting potential of advanced cotton cultivars is not a limiting factor for achieving yield targets but retention of squares and flowers for successful maturation into bolls is major challenge. In this article, we focused on why shedding occurs, its mechanism, yield losses, plant self-compensation, effects on plant growth and possible management to ameliorate its adverse effects. We concluded that it is quite unfair to blame single factor, instead it is an integrated effect of plant and stress factors i.e., high temperature, drought, thick plant stand, insects and diseases etc. contribute to accelerate shedding which ranges about 40-50%. The stresses induce the excessive production of degrading enzymes like pectinase, cellulose and hydrolase, while ethylene and abscisic acid is produced excessively to hasten the degradation process for shedding. The physiological disturbance contributes 7-35 and 42-64% abscission of unopened flowers and bolls, respectively. The square and flower are more frequent to shedding at high temperature compared to immature bolls. The flowers and boll shedding up to 30% is tolerable limit because cotton can recover yield provided weather support the crop later in season. The self-regulated abscission of floral parts is not easy to control under field conditions, however, the adverse effects of stress mediated shedding can be ameliorated with girdling and avoiding pest and stressful conditions, application of plant growth regulator (PGR) to control vegetative growth and abscisic acid (abscission promoter) and ethylene inhibitors like naphthalene acetic acid, silver thiosulfate and 1-methylcyclopropene.</p>
COMPORTAMIENTO PRODUCTIVO DE DOCE HÍBRIDOS TRILINEALES DE MAÍZ PARA FORRAJE EN UNA REGIÓN TROPICAL SECA
Authors: Rivas Jacobo Marco Antonio , Carballo Carballo Aquiles , Quero Carrillo Adrián Raymundo , Hernández Garay Alfonso , Vaquera Huerta Humberto , Rivas Zarco Efraín Charint , Rivas Zarco Maritza Arcelia , Rivas Zarco Erik Jacksiel 
Published: August 2023

Twelve threelineal corn hybrids and one commercial variety were evaluated at Ahuacatlán, Nayarit; distance between furrows was 75 cm and a seed every 15 cm. Fertilizer was applied at one dosagee of 160-60-00. Treatments were evaluated at a developmental stage of ¾ milk line. Data was analyzed through a randomized complete block design. The best total dry matter yield hybrids included HT-5, HT-12, HT-4, and HT-10: 32.8, 28.4, 28.4 and 27.6 t ha-1, respectively. For leaves dry matter these were HT-6, HT-1, HT-5, HT-9, HT-10, and HT-8: 5.7, 5.3, 5.3, 5.1, 5.2 and 5.0 t ha<sup>-1</sup>, respectively, for corn ears production HT-10, HT-8, HT-12, HT-6, HT-1, HT-4, and HT-5, with 8.9, 8.9, 8.6, 8.6, 8.6, 8.5, and 8.5 t ha<sup>-1</sup>, respectively. For stem dry matter HT-5, HT-4, HT-12 and, HT -10: 19.1, 15.4, 15.4, and 13.6 t ha<sup>-1</sup>, respectively. Three different groups were well defined for anthesis stage: 1) from 91 to 95 days: placebo, HT-5 and HT-7; 2) 86 to 90 days HT-2, HT-9, HT-10, HT-11, HT-6, HT-8, and HT-1, and 3) 80 to 85 days: HT-3, HT-12, and HT-4. Leaf percentage ranged from 16 to 22%, stem from 26 to 35%, and corn ear production from 43 to 58%. It is concluded that the evaluated hybrids showed variability for leaf, stem and corn, which will allow to select, in breeding programs, directly on the impact of forage production attributes. Contrary to stem, the leaf represented a lower percentage of components of the plant and a high positive correlation was observed between the stem: plant relationship with stem dry matter yield and dry matter yield.
Türkiye’de Dünya Bankası Kredilerine Dayalı Eğitim Projelerinin Hazırlık ve Uygulama Sürecine İlişkin Bir Değerlendirme
Authors: TÜNCEL Mahmut , AKYÜZ Ünal 
Published: August 2023

Bu araştırmada; Türkiye’de Dünya Bankası’nın finanse ettiği ve Millî Eğitim Bakanlığı (MEB) tarafından yürütülen Temel Eğitim Projesi I. Faz (TEP-I), Temel Eğitim Projesi II. Faz (TEP-II) ve Ortaöğretim Projesi’nin (OÖP) hazırlık ve uygulama süreçlerine Banka’nın müdahalesinin kamu yönetimi iç denetim sisteminde kullanılan yasal, mali, sosyal, performans ve itibar açıdan ne tür sorunlara yol açtığı üzerinde durulmuş ve bu sorunların nedenin ne olduğu alt boyutları açısından değerlendirilmiştir. Betimsel tarama modeli kullanılan araştırmada veriler iki şekil de toplanmıştır. İlk aşamada Dünya Bankası (DB) ile ilgili bilgi ve belge içeren her türlü yazılı kaynaklar ile DB tarafından yayınlanan eğitimle ilgili belge, kitap ile internette yer alan bilgiler ve konu ile ilgili araştırmalardan elde edilmiştir. İkinci olarak, görüş bildirmeyi kabul eden 51 katılımcı ile yarı yapılandırılmış sorulardan oluşan görüşme formları kullanılarak yüz yüze görüşme yapılarak veriler elde edilmiştir.
Dünya Bankası kredili (TEP-I ve TEP-II) projeler, ilköğretimi yaygınlaştırarak eğitime erişimi ve niteliği arttırma, OÖP projesiyle de ortaöğretim programının yenilenmesi ve geliştirilmesi ile öğretmenlerin hizmetiçi eğitim alması sağlanmıştır. Bununla beraber; ülke yasaları yerine DB’nin mevzuatı esas alınması ve proje hazırlama süreci, uygulama planlarının hazırlanması, proje amaç ve hedeflerinin belirlenmesine kadar her aşamada ülke koşullarını dikkate almayan ABD’de bulunan merkez ofiste çalışan bir ekip lideri ve uzmanlarının yer alması ve anlaşmaya göre proje işlerinin yapılmasının bu kişilerin iznine bağlanması çalışmaları olumsuz olarak etkilemiştir. Bu proje yönetimi nedeniyle ihale onaylarının gecikmesinden dolayı okul inşaat süreleri uzamış, öğretim programları zamanında yenilenmemiş, eğitim materyallerinin satın alınması uzamış ve bunların sonucunda da öğrenci, öğretmenler, eğitim yöneticileri, MEB ve ilgili diğer kamu kuruluşları ile eğitim paydaşları arasında sorunların ortaya çıktığı ileri sürülmüştür.
การพัฒนาระบบจัดการผ้ากะเหรี่ยง
Authors: ใจหมื่น รัชชานนท์ , พงษ์นุ่มกูล อังศนา 
Published: August 2023

การพัฒนาระบบจัดการผ้ากะเหรี่ยง มีวัตถุประสงค์ เพื่อพัฒนาระบบร้านขายสินค้า OTOP ประเภท เสื้อกะเหรี่ยง กระเป๋า ผ้าทอ กำไล แบบออนไลน์ เพื่อออกแบบเว็บไซต์ที่สามารถจัดการ การทำงานได้ในรูปแบบต่างๆ เช่น การจัดการคลังสินค้า การแก้ไขข้อมูล การเพิ่มข้อมูลและการเรียกดูรายงานการซื้อขายได้ตามช่วงเวลา ช่วยอำนวยความ สะดวกให้แก่ลูกค้าที่เข้ามาชมเว็บไซต์หรือสนใจซื้อสินค้า สามารถซื้อสินค้าในเลือกช่องทางการสั่งซื้อสินค้าผ่านระบบออนไลน์หลากหลายแบบ เช่นทาง facebook ทางเว็บไซต์ได้ โดยใช้โปรแกรม WordPress , WooCommerce และ hostings.ruk-com.in.th ในการพัฒนาระบบร้านค้า ออนไลน์ เพื่อให้ลูกค้าตัดสินใจในการเลือกสินค้าได้ง่ายมากขึ้น
ผลการศึกษา พบว่า ผลการพัฒนาระบบจัดการผ้าทอกะเหรี่ยง เป็นระบบที่พัฒนาขึ้นเพื่อการเลือกซื้อสินค้าผ่านทางระบบออนไลน์สามารถเลือกซื้อสินค้าผ่านเพจ facebook ออนไลน์หรือเว็บไซต์ของทางร้านhttps://karenwovencloth.com/ โดยไม่ต้องเดินทาง อีกทั้งยังประหยัดเวลาต่อการเลือกซื้อสินค้าและสะดวก ต่อการชำระเงิน สามารถตรวจสอบการสั่งซื้อ และข้อมูลต่างๆ ได้ง่ายผ่านเว็บไซต์ระบบขายสินค้า ผลการประเมินความพึงพอใจต่อการใช้งานเว็บไซต์ ด้านการออกแบบเว็บไซต์และระบบร้านค้าออนไลน์ พบว่ามีความพึงพอใจต่อการใช้งานเว็บไซต์อยู่ในระดับดี
Control de convertidores trifásicos mediante imposición de dinámica y estimadores
Authors:   , Guzmán Solà Ramon 
Published: August 2023

The present thesis is focused on the control of three-phase power converters using sliding-mode control (SMC) in abc frame. This work has been based on previous publications about the SMC applied to three-phase power converters. The main contribution of this Thesis is the deduction of different power converter models in order to be used in a Kalman filter (KF) algorithm. The main contribution is the deduction of a model for each power converter to be used in a Kalman filter. This proposal will allow to achieve a perfect decoupling between controllers in a more efficient way compared with the methods proposed in the state-of-the-art. It must be highlighted that the system behaviour can be modified according to the selected model which modifies the closed-loop dynamics according to some specific requirements, for instance to achieve active damping in voltage source inverters with LCL filter. In addition, the use of this estimator allows to obtain the PCC voltages free of noise and distortion even in the case of a highly distorted grid. The converters presented in this manuscript are a Voltage source inverter with LCL filter, a three-phase unity power factor rectifier and a three-phase active power filter.
Esta tesis doctoral está centrada en el control de convertidores trifásicos utilizando control en modo deslizamiento en el marco de referencia abc. Los puntos de partida de este trabajo de investigación se basan en trabajos previos de control en modo deslizamiento aplicado a convertidores trifásicos, y en las bases teóricas de este tipo de control ampliamente utilizado en la Electrónica de Potencia. La principal aportación de esta tesis es la deducción de un modelo para cada uno de los convertidores tratados y su posterior utilización en un filtro de Kalman. Esta propuesta permitirá obtener un perfecto desacoplo entre controladores, cosa que hasta ahora no se había realizado de forma tan eficiente. Otra de las principales ventajas del método propuesto es la posibilidad de poder modificar el modelo del convertidor de acuerdo con unas determinadas especificaciones dinámicas, por ejemplo para obtener amortiguamiento activo en el caso de convertidores conectados a un filtro LCL. Cabe destacar que el uso de este estimador permite también estimar las tensiones del punto de conexión común, y por tanto obtener tres tensiones libres de ruido y distorsión incluso en el caso de una red altamente distorsionada. Los convertidores tratados en esta tesis son un rectificador trifásico con factor de potencia unitario, un filtro activo trifásico y un inversor trifásico con un filtro LCL.
Wireless power transfer : fueling the dots
Authors:   , Bou Balust Elisenda 
Published: August 2023

Resonant Inductive Coupling Wireless Power Transfer (RIC-WPT) has been proven to provide very high power transfer efficiencies (above 80%) for moderate distances, and is hence foreseen as a key technology to enable wireless power transfer to a myriad of different devices and related applications. Due to the multidisciplinary nature of the WPT underlying principles, several approaches have been provided to analyze RIC-WPT systems from different perspectives (encompassing Electromagnetic fields, Circuit models and Optics), but they have failed to provide a unified model to understand and ultimately to design the behaviour of such systems. This thesis is therefore aimed to, first, provide a multi-modal RIC-WPT complete model oriented to the design and in turn optimisation of RIC-WPT systems and, secondly, to explore and characterize the fundamental challenges precluding the widespread deployment of RIC-WPT and thereby accordingly to yield a set of design guidelines to overcome them. Finally, and due to the fact that multi-node RIC-WPT systems are key to the adoption of this technology, this thesis models, characterizes and analyzes Multiple-Input Multiple-Output RIC WPT Systems, making special emphasis on their scalability.
La transferencia inalámbrica de potencia basada en acoplamiento resonante inductivo (RIC-WPT) ha demostrado ser capaz de proporcionar eficiencias muy altas en la transferencia de potencia (hasta 80%) a distancias moderadas, de modo que ésta se anticipa por tanto como una tecnología clave para posibilitar la transferencia inalámbrica de energía a una miríada de diferentes dispositivos y sus aplicaciones asociadas. Debido a la naturaleza multisciplinar de los principios que rigen los sistemas RIC­WPT, se han propuesto varias aproximaciones para analizar los sistemas RIC-WPT desde diferentes perspectivas (bien sean campos electromagnéticos, modelos circuitales, u óptica), pero no se ha conseguido proporcionar un modelo unificado que permita la comprensión y, en última instancia, el diseño del comportamiento y las prestaciones de estos sistemas. Esta tesis tiene por tanto como objeto, primero, proporcionar un modelo completo multi-modo de la tecnología RIC-WPT, orientado al diseño y a su vez la optimización de estos sistemas, y, como segundo foco, el explorar y caracterizar los retos fundamentales que todavía evitan un amplio despliegue de los sistemas RIC-WPT, ofreciendo en consonancia un conjunto de pautas de diseño para sobreponerlos. Finalmente, y debido al hecho de que los sistemas RIC-WPT con múltiples nodos son cruciales para la adopción de esta tecnología, en esta tesis doctoral se modelan, caracterizan y analizan los sistemas RIC-WPT de entrada y salida múltiple, con un especial énfasis en sus tendencias de escalabilidad.
Planificación óptima de redes eléctricas en baja y media tensión y microrredes eléctricas inteligentes mediante algoritmos linealizados de optimización multicriterio
Authors:   , Barrenechea Gruber Roberto Carlos 
Published: August 2023

In this work, a new algorithm for the multiobjective optimization of low and medium voltage electrical grids and microgrids is proposed. The originally nonlinear planning model is linearized using the economic current density concept, and the errors from the linearization are corrected by means of comparisons with load flow calculations in an iterative routine.
This linearization adjustment allows for the calculation of the Pareto optimal solutions without having to solve the nonlinear model directly using techniques that may present convergence problems.
The proposed algorithm is developed as a method for the optimal design and tertiary control of low and medium voltage grids and microgrids, allowing the calculation of the optimal power generation and the most efficient grid configuration.
En el presente trabajo se propone un nuevo algoritmo que permite resolver el planteamiento multiobjetivo del problema de optimización de redes de baja y media tensión. Para ello, se utiliza un modelo linealizado basado en el concepto de la “densidad económica de corriente”, en el cual se incluye un técnica iterativa que permite corregir los errores provenientes de la linealización mediante comparaciones contra los valores obtenidos del flujo de carga en cada iteración.
Este ajuste de la linealización permite corregir el error introducido obteniendo en consecuencia soluciones exactas sin necesidad de resolver el modelo no lineal, para el cual las técnicas directas de resolución pueden presentar problemas de convergencia.
El algoritmo propuesto se desarrolla como un método para el diseño y control técnica y económicamente eficiente de las redes de baja y media tensión y microrredes, permitiendo establecer el punto de operación de la generación y la configuración óptima de la red
Desenvolupament de tècniques de mesura d'impedància elèctrica aplicada a la caracterització de sòls
Authors:   , Torrents Dolz Josep M. 
Published: August 2023

La humitat és un dels paràmetres més característics del sòl i el seu coneixement té interès des de diversos àmbits de la enginyeria. Conèixer la humitat mitjançant la impedància elèctrica planteja un estudi acurat de les tècniques de mesura per determinar quins factors o components es mesuren realment. Cal saber, a més, si corresponen a la presència i quantificació de la humitat o a interferències com fenòmens de transducció iònico electrònica, fenòmens en el si del material o limitacions pròpies de la instrumentació, sovint poc aprofundits per la bibliografia.<br/><br/>	L'estudi teòric de les propietats elèctriques, conductivitat i permitivitat, de les barreges estableix unes directrius o punts de partida. El sòl és un sistema de partícules amb tres fases: la sòlida, l'electrolítica i els buits, que es comporta com un dielèctric compost amb moltes pèrdues. La interacció entre fases modifica les propietats elèctriques de les barreges teòriques i ens porta a l'estudi detallat de diverses lleis pseudoempíriques i al plantejament d'un model propi.<br/><br/>S'han analitzat les tècniques clàssiques de mesura d'impedància elèctrica, abast, validesa i limitacions quan s'estudia el medi sòl. La no consideració dels punts febles o el seu oblit pot portar a interpretacions errònies. Aquesta anàlisi de tècniques de mesura i l'estudi elèctric de materials ha portat al desenvolupament de cèl.lules adaptades a diferents estratègies de mesura, a la combinació de diversos instruments i a la connexió adient de les parts amb diverses solucions originals.<br/><br/>La conductivitat dels sòls no depèn de la freqüència en el marge estudiat (1 Hz a 100 MHz); sí que depèn dels continguts de sals dissoltes en l'electròlit. A partir d'un llindar, hi ha una relació lineal entre conductivitat i humitat en sòls de tipus sorrenc. En canvi, la relació en sòls llimosos i argilosos és de tipus potencial fins a una saturació. A freqüència baixa, no és possible mesurar la permitivitat de sòls atesa la influència de la conductivitat. A freqüències superiors a 1 MHz, la relació permitivitat humitat és aproximadament lineal en sòls sorrencs i potencial en sòls llimosos i argilosos. Aquests resultats s'han contrastat amb els models bibliogràfics, que s'han adaptat o modificat.<br/><br/>L'anàlisi i desenvolupament de les tècniques de mesura i els models elèctrics de sòls permeten conèixer el contingut d'humitat dels sòls, tot i que cal un coneixement del tipus de sòl de què es tracta i de la concentració inicial de l'electròlit. Les tècniques desenvolupades complementen de forma ràpida i barata les tècniques clàssiques no elèctriques i poden substituir les si s'accepta una incertesa del 5%.
Tomografía de impedancia eléctrica para aplicaciones médicas
Authors:   , Rosell Ferrer Francesc Xavier 
Published: August 2023

En esta tesis se analizan las bases de la Tomografía de Impedancia Eléctrica (TIE) desde los aspectos de campos electromagnéticos, los electrodos y las propiedades eléctricas de los tejidos en seres vivos. Se analizan los distintos tipos de sistemas electrónicos para poder obtener los datos de impedancia en sistemas multielectrodo para TIE y los métodos para obtención de imágenes. A partir de estos estudios se diseña e construye un sistema de TIE. Este sistema se verifica en maquetas resistivas y en medidas sobre humanos. Las contribuciones más relevantes son en el diseño del equipo (con soluciones inéditas como la realimentación activa y los algoritmos para calibración y detección de forma), el análisis de la sensibilidad para distintas estrategias de inyección y el estudio sobre impedancia de electrodos en diversas posiciones del cuerpo.
In this thesis we analyze the basic concepts of the Electrical Impedance Tomography (EIT), from electromagnetic field theory, electrodes and the electrical properties of biological tissues. We analyze different types of electronic systems to be able to obtain the information of impedance in multielectrode systems for TIE and the methods for obtaining images. From these studies, a TIE system is designed and constructed. This system is tested in resistive models and in measures on human beings. The most relevant contributions are in the design of the equipment (with innovative solutions like the active feedback and the algorithms for calibration and detection of the objects's shape section), the analysis of the sensitivity for different strategies of current injection and the study of electrode impedance in different body locations