bluuebunny/crossref_metadata_2025 huggingface dataset:
Energy Efficient Routing in Wireless Mesh Networks using Multi-Objective Dwarf Mongoose Optimization Algorithm
Authors: Prema Kamadenahalli Narayanaswamy , Ushadevi Mandalur Basavarajappa , Smitha Shivalingappa Mallesh
Published: May 2024

Wireless Mesh Networks (WMNs) are part of wireless technologies that are known for their flexibility and extended coverage. Wireless applications have reached their peak in applications related to various fields such as healthcare, image processing, and so on. However, delay and energy efficiency are considered the two aspects that diminish the performance of WMNs. To overcome the aforementioned issues, this research introduces an effective routing method using Multi-Objective Dwarf Mongoose Optimization Algorithm (MO-DMOA). The MO-DMOA performs routing by considering the multiple paths using an enriched population resource. The nomadic behaviour of MO-DMOA helps in detecting the optimal routing path with minimized over-exploitation. The proposed MO-DMOA is evaluated with different routing schemes such as Load Balance and Interference Avoid-Partially Overlapped Channels Assignment (LBIA-POCA) framework, and Multi-Objective Dyna Q-based Routing (MODQR). The outcomes obtained through the experimental analysis show that the proposed approach acquires a better throughput of 13.5×105kbps for 22 flows, whereas the existing LBIA-POCA achieves a throughput 60× 103 kbps
SCSO-MHEF: Sand Cat Swarm Optimization based MHEF for Nonlinear LTI-IoT Sensor Data Enhancement
Authors: Bashir Anees Fathima , Queen M. P. Flower , Habib Irfan
Published: May 2024

Sensor data is an integral component of internet of things (IoT) and edge computing environments and initiatives. In IoT, almost any entity imaginable can be outfitted with a unique identifier and the capacity to transfer data over a network. The estimate problem was formulated as a min-max problem subject to system dynamics and limitations on states and disturbances within the moving horizon strategy framework. In this paper, a novel Sand Cat Swarm Optimization Based MHEF for Nonlinear LTI IOT Sensor Data Enhancement (SCSO-MHEF) is proposed. In the proposed method the MHEF is optimized using Sand Cat Swarm Optimization to enhance sensor data stability tuned by initial parameters. Simulation experiments were conducted on various and unique scenarios in various orders LTI system with IOT sensor data in order to validate the suggested approach. This method can be used to analyze systems with dynamically changing systems. The proposed SCSO-MHEF technique overall accuracy of 84.5%, 87.3 %, and 99.5 % better than Kalman Filter (KF), EKF and Moving Horizon Filter (MHEF) respectively.
Optimizing Current Injection Technique for Enhancing Resistivity Method
Authors: Nurpadillah Sifa , Cahyadi Willy Anugrah , Mukhtar Husneni , Susanto Kusnahadi , Ikhsan Akhmad Fauzi , Nurdin Agung Ihwan
Published: May 2024

Geo-electrical resistivity methods are widely used in various fields and have significant applications in scientific and practical research. Despite the widespread use of resistivity methods, current injection is a critical step in the process of resistivity methods, and the quality of current injection significantly impacts the accuracy of the resistivity measurements. One primary challenge is optimizing current injection techniques to enhance resistivity methods. The developed current injector model for the resistivity meter instrument enhances performance by increasing the voltage source to 400 Volts, extending measurement coverage. It provides three injection current options, 0.5A, 0.8A, and 1A, for efficient accumulator use, considering electrode distances and estimating earth resistance using Contact Resistance Measurement (CRM) to estimate the earth resistance. CRM mode ensures proper electrode connection before injection, thus improving measurement efficiency. The embedded TTGO LoRa ESP32 SX1276 facilitates wireless communication over 1.5 km, addressing challenges in remote and internet-limited areas. The model demonstrates reliability, validity, and durability in CRM mode and current injection measurement. Regarding reliability, we determine the relative error of the model by carrying out measurements repeatedly. In lab-scale testing, the average Relative Error in CRM mode is 0.65%, and in earth resistance measurement testing, it is 1.58%. These relative errors are below the 2% maximum error applied in the “Supersting”, a commercial resistivity instrument. The model's validity is defined by comparing the model with the measuring instrument; we have absolute error. In lab scale testing, the average Absolute Error in CRM mode is 3.08%, and in earth resistance measurement testing, it is 3.73%. The model's durability is tested by injecting current for a minute. After one minute of current injection, the power resistor component's temperature is stable at 30°C.
Optimizing Capacitor Placement in Distribution Systems Under Variable Loading Conditions with Golden Jack Optimization (GJO)
Authors: Reddy N Madhusudhan , Kiran Dr. T. Vamsee , Kumar I Kranthi , Reddy Karri Ravikumar , Srinivas Chodagam , Divya K
Published: May 2024

In modern society, the demand for electricity is ever-growing, making the minimization of power losses in distribution systems paramount. One significant aspect contributing to these losses is the strategic placement of capacitors within the distribution network. Efficient capacitor placement not only reduces power losses but also enhances the overall performance and reliability of the system. In today's world, where electricity is indispensable, minimizing power losses in the distribution system holds significant importance. This research introduces the Golden Jack Optimization (GJO) algorithm as a novel approach to address the challenge of capacitor placement in distribution systems. GJO, inspired by the foraging behavior of jackals, exhibits unique characteristics such as adaptability and efficiency in finding optimal solutions this paper proposes an innovative algorithm specifically designed for this purpose. To validate the effectiveness of the algorithm, extensive testing and experimentation have been conducted on the IEEE 69-bus system. This study aims to provide a practical and efficient solution to the challenge of power loss reduction within distribution systems. By harnessing the power of GJO and the insights gained from testing on the IEEE 69-bus system, we contribute to the ongoing efforts to enhance the efficiency and sustainability of electricity distribution networks. The results are compared with MPSO, TSM, GA-Fuzzy algorithms and proposed algorithm shows superior performance.
A PRAGMATICALLY ORIENTED APPROACH TO GENERATIVE LINGUISTICS
Authors:   Lecturer at the Department of Russian literature studies, Bukhara State University, Uzbekistan, Sobirovich Sukhrob Avezov
Published: May 2024

The annotated paper examines the possibility of creating an original grammatical system when teaching a new language. The pragmatic approach to generative linguistics was the methodology of language acquisition using a unified model of the Russian sentence. The article discusses algorithms of sentence modelling at two levels: external and internal, based on the theories of N.Chomsky and L.Teniers. The external level includes the construction of a unified sentence structure from the deep structure to the surface structure according to N.Chomsky. And the internal level includes the structural correlation of model elements as the content of the unified sentence structure itself -according to L.Tenier. The theories of N.Chomsky and L.Teniers defined all models as a union of components and reflected in the same models the relations of hierarchy between the components. The study demonstrates a way of teaching foreign speakers the language with the help of the author’s theory of algorithmic syntax.
Development of a Physics Module for Measurement Material Assisted by Augmented Reality (AR) Using the Assemblr Edu Application
Authors: Handayani Fitria , Idrus Hadiyati , Chandra Artha Nesa , Agustiyanto Frans Rizal
Published: May 2024

The background to this research is the lack of student interest in physics, with various underlying factors. Starting from the unavailability of learning modules in schools to the absence of measuring instruments, which results in students having difficulty calculating measurement results using measuring instruments that have never been seen or used before. Therefore, it is important to develop valid and practical modules, one of which is by using technology in teaching and learning activities, which is one of the steps in increasing the effectiveness of learning, with the help of Augmented Reality using the Assemblr Edu application and focusing on measurement material in class X. This research is research and development (R&D) using the 4D model (Define, Design, Development, Dissemination). However, this research only reached development at the practicality stage. Based on the results of data analysis, validation from material, media and interpretation experts was found to be 94.5%, 83.3% and 91.6%, respectively, in the very valid category. And the practicality of the module by teacher and students was obtained at 98.6% and 86.4% in the very practical category.
Diagnóstico y prevalencia del ácaro Varroa Destructor en Apiarios de Apis Mellifera en el Límite Provincial de Tungurahua y Pastaza
Authors: Vargas Hidalgo Junior Stalin , Pisuña Lluglluna Edison Nicolas , Flores Granizo Pablo Eduardo , Barrionuevo Quinto Dario Fernando
Published: May 2024

En los últimos, el surgimiento del término “crisis de polinizadores” y el denominado Desorden del Colapso de las Colmenas (CCD), ha resaltado la preocupación dentro del sector apícola, debido a un incremento en la mortalidad de las abejas, causado principalmente por enfermedades víricas, bacterianas, fúngicas y parasitarias, entre otras causas, se encuentran: el cambio climático, calentamiento global y uso de agroquímicos en la agricultura. La presencia de ectoparásitos aparte de ser un problema por si solos, son los principales encargados de transportar virus y bacterias. El objetivo de este trabajo de investigación consistió en, diagnosticar la prevalencia del ácaro Varroa destructor en apiarios de Apis mellifera en los límites provinciales de Tungurahua y Pastaza, donde, se puso a consideración a Varroa destructor como variable dependiente, el cual es contemplado como un ectoparásito exótico dentro del Ecuador. Para poder identificar la presencia de este ácaro, se aplicó la prueba de frasco, De Jong y así poder determinar su presencia, y se realizaron los siguientes análisis, de 20 muestras de un apiario ubicado en la parroquia de Río Negro, provincia de Tungurahua, el cual no contaba con un registro, 8 dieron positivas para Varroasis y su prevalencia fue del 40%, por otro lado, de 28 muestras ubicadas en la parroquia Shell, la cual cuenta con un registro en Agrocalidad, 10 resultaron positivas y su prevalencia fue del 35.71%, por último, de 2 muestras ubicadas en la parroquia Tarqui, perteneciente estas dos últimas a la provincia de Pastaza, 1 dio como positiva y su prevalencia fue del 50%. Lo cual, el porcentaje de la tasa de incidencia de Varroa destructor dentro de las provincias de Tungurahua y Pastaza fue del 38.00%.
Una Mirada a la Normatividad Latinoamericana en la Inclusión de Personas con Discapacidad
Authors: Ortega Leal Nidia Marcela , Mendoza Torres Christian Paulina
Published: May 2024

El objeto del presente ensayo es presentar una reflexión sobre como la estigmatización y discriminación impiden que las personas en condición de discapacidad gocen en condiciones igualitarias y equitativas de sus derechos en diferentes contextos sociales. Dichas consideraciones se centran en la revisión del marco internacional al igual que en normativa Latinoamérica. Esta reflexión se basa en la revisión documental de diversos estudios y publicaciones que permiten identificar la importancia de eliminar, desde la construcción de un marco normativo, la discriminación en cualquiera de sus manifestaciones para permitir el reconocimiento de las habilidades y eliminar los obstáculos discapacitantes.
Determinación de las Variaciones de Calcio Soluble en la Precipitación Salina en un Destilador Solar a Escala Experimental
Authors: Armendáriz Ramírez Saúl Iram , G. Koutsoukos Petros
Published: May 2024

El objetivo de la investigación fue estudiar la precipitación salina a temperatura constante de 75 °C en un destilador solar experimental. Se utilizó agua subterránea con alto contenido de calcio, bicarbonatos y sulfatos solubles como afluente. Una de las variables más importantes en la operatividad y productividad de agua potable con esta tecnología es la precipitación salina en la base del destilador. Esta ocurre debido a las características fisicoquímicas del agua subterránea típica de las zonas desérticas del norte del estado de Chihuahua. Las variaciones en la concentración de calcio soluble del afluente se midieron cada hora con un espectrofotómetro de absorción atómica y se calculó la cantidad total precipitada de calcio. Con la técnica de difracción de rayos X y microscopía electrónica de barrido se analizó el precipitado. Se determinó que la reacción de la precipitación se estabilizó a la tercera hora. La concentración de calcio aumentó durante la cuarta y la quinta hora, lo que indicó que el calcio soluble remanente no reaccionó. Se concluye que la reacción de precipitación salina no es isotérmica, sino que está impulsada por gradientes de temperatura. En el análisis de la identificación de las fases cristalinas del precipitado en las incrustaciones se encontró CaCO3 en forma de calcita y CaSO4 como anhidrita y basanita.
Sensor de Deshidratación por Medio de la Conductancia de la Piel
Authors: Jiménez Cunjamá Francisco Daniel , Inchaustequi Pérez Luis Enrique , Ibáñez Nangüelú Christian Roberto
Published: May 2024

La deshidratación es un fenómeno que ocurre cuando el cuerpo humano pierde más líquidos de los mareos, disminución de la función cognitiva e incluso desmayos. La deshidratación puede ocurrir en diversas situaciones, como actividades físicas intensas, condiciones climáticas extremas, enfermedades o durante el envejecimiento.  En este presente proyecto, tiene como objetivo la creación de un sensor de deshidratación por medio de la conductividad térmica de la piel (EDA), la cual se puede medir a través de los datos de dicha conductividad de la piel, y dado que es una medida inversa a la resistencia de la piel, se puede percibir una respuesta proporcional, y esta está sujeta a la cantidad secreción de sudor, de esta manera permite llevar el proceso de la medición de deshidratación.que ingiere, lo cual tiene efectos negativos en la salud, y empiezan a aparecer síntomas como fatiga.
Caracterización del Cuidador Primario Formal en Mérida, Yucatán
Authors: De Lille Quintal María José , Echeverría Echeverría Rebelín , Carrillo Trujillo Carlos David , Evia Alamilla Nancy Marine , Kuyoc Fuentes Rodrigo
Published: May 2024

México cuenta con un sistema de salud público mixto y fragmentado. Por su parte, el segmento del sector privado es todavía más fragmentado y los servicios médicos de esta naturaleza en México son aún más escasos. Dicha fragmentación ha ocasionado grandes problemáticas en las que está inmerso el tema del cuidador primario pues aún no queda claro quién debe otorgar un servicio de esta naturaleza. El cuidador primario es aquella persona encargada de atender, en primera instancia las necesidades físicas, sociales y emocionales de una persona que por sí misma no puede hacerlo. El objetivo de este artículo fue caracterizar a un grupo de cuidadores formales de Mérida, Yucatán, fue realizada bajo un enfoque de tipo cualitativo, bajo un diseño de investigación fenomenológico, se implementaron entrevistas semiestructuradas para la recogida de datos en una muestra de 60 participantes que trabajan en instituciones de salud tanto del sector público y privado en la ciudad de Mérida, Yucatán. Los resultados nos indican que la mayoría de los cuidadores primarios formales son mujeres, trabajan en instituciones públicas o privadas, aunado a que tienen formaciones distintas y respecto al tipo de las actividades de cuidado que realizan cubren necesidades físicas, psicológicas y sociales.
A story of becoming a horticultural threat, cypress jewel beetle Lamprodila festiva (Coleoptera, Buprestidae): analytical approach of its European escalation based on bibliographical sources
Authors: Keszthelyi Sándor , Somfalvi-Tóth Katalin
Published: May 2024

The cypress jewel beetle, Lamprodila festiva, as one of the most destructive local invasive pests in Europe is currently an extreme threat to the coniferous Cupressaceae trees. The beetle spread at an unprecedented pace and intensity and poses a threat to many countries. Our study aimed to map the Palearctic distribution of L. festiva and measure the dispersal's pace and directions. Besides, one of our goals was visualising the adult’s seasonal activity and their host plant choice preference. A meta-analytical assessment was carried out to answer these questions based on the related bibliographical sources available in scientific databases.
Our results confirmed that L. festiva has spread with extraordinary speed and success across the western Palaearctic areas, where the consequences of global warming have provided optimal conditions. The first population successful reproduction was started at five well-differentiated natural reserve areas across Europe in a latent manner. The flight season of L. festiva typically occurs from May to July, with the peaks varying depending on the area of distribution. Our studies have shown that L. festiva is a typical oligophagous pest, favouring certain species within its range of host plants. Thus, the genera Thuja, Platycladus and Juniperus species are most affected by its damage. Starting from its exceptional distribution characteristics, realising biological explanatory and applied protection research related to this species can become an urgent expectation in the future.
Educação de Jovens e Adultos em tempos de pandemia: o que dizem educandas e gestoras goianas
Authors: Pires Luciene Lima de Assis , De Souza Paulo Henrique , Batista da Silva Rosimary , Pereira Silva de Souza Alexsandra
Published: May 2024

Este artigo traz reflexões sobre o processo educativo na Educação de Jovens e Adultos (EJA). Por meio de entrevistas semiestruturadas presenciais e por telefone, e pelo acompanhamento de dificuldades de educandos, buscou-se compreender a realidade de sujeitos da EJA e suas expectativas sobre a escola, em tempos de pandemia. Relata-se como foram realizadas as aulas remotas e a visão de gestoras e educandas sobre o processo de ensino e de aprendizagem. Realizou-se, em 2020/1, o acompanhamento de dez educandos nas disciplinas de Ciências e de Matemática, em cinco municípios goianos. Apresenta-se aqui recorte da pesquisa: o acompanhamento de duas alunas: uma em Biologia e outra em Matemática, em dois municípios goianos. Verificou-se que os municípios apresentam realidades econômicas diferentes, mas se assemelham no que se refere à EJA durante a pandemia. Percebeu-se o aumento da evasão escolar e constatou-se que os educandos tiveram dificuldades para o acompanhamento das aulas remotas.
Palavras-chave: Educação de jovens e adultos. Processos de ensino e aprendizagem. Evasão escolar. Pandemia.
Manutenção da cadeia de custódia no Atendimento Pré-hospitalar: Atuação da Enfermagem Forense
Authors: Farias Wanderon Santos de , Silva Filho Marcos Antônio da , Fernandes Carmela Lília Espósito de Alencar , Almeida Pollyana dos Santos Oliveira de , Noberto Rozangela Chaves de Oliveira , Azevedo Luiza Moura de Souza , Silva Uanderson Pereira da
Published: May 2024

Introdução: A atuação dos profissionais de enfermagem forense ou habilatado em áreas da enfermagem no atendimento pré-hospitalar móvel tráz diversos benefícios no contexto forense. Objetivo: objetivo deste estudo foi apontar a relevância da manutenção da cadeia de custódia no atendimento pré-hospitalar. Método: Trata-se de uma revisão integrativa. Resultados: A enfermagem no contexto das ciências forense no atendimento pré-hospitalar móvel, tráz valia na assistência ao indivíduo bem como suporte para manutenção da cadeia de custódia, cabendo este avaliar a cena do sinistro bem como avaliar a necessidade de suporte policial. Conclusões: A atuação da enfermagem com aplicação de forma transversal das ciências forenses traz inúmeros benefícios desde assistência in loco ao indivíduo até a educação permanente.
Enhancing Reading Comprehension Proficiency of Grade 10 Students: Input for Supplementary Reading Materials
Authors: Paloma Camacho Jazzil
Published: May 2024

This present study investigated the reading comprehension levels of the Grade 10 students, their levels of macro and micro reading comprehension skills, and the different reading activities provided to them by the teachers. Considering the effect of the COVID-19 pandemic, the Grade 10 students’ acquisition of reading comprehension skills has been affected. Consequently, assessment of students’ reading comprehension is essential to collect information and make inferences about the level of their reading comprehension skills which would help the Grade 10 teachers determine the underlying problems in students’ reading skills and eventually guide them in the crafting of the most appropriate reading interventions and well-designed remediation plans. The instrument used to assess the student’s level of reading comprehension skills was categorized into two based on Douglas Henry Brown’s micro and macro reading skills and an interview for teacher-respondents on the activities provided to the students in teaching reading. The results of this study indicated that the student’s reading comprehension proficiency was at a proficient level and yet more intensive reading comprehension activities should be given, well-designed supplementary reading materials be provided, and varied and effective learning strategies be employed by the teachers to improve their reading comprehension.
Kilonova Parameter Estimation with LSST at Vera C. Rubin Observatory
Authors: Ragosta Fabio , Ahumada Tomás , Piranomonte Silvia , Andreoni Igor , Melandri Andrea , Colombo Alberto , Coughlin Michael W.
Published: May 2024

The upcoming Vera Rubin Observatory’s Legacy Survey of Space and Time (LSST) opens a new opportunity to rapidly survey the southern sky at optical wavelengths (i.e., ugrizy bands). In this study, we aim to test the possibility of using LSST observations to constrain the mass and velocity of different kilonova (KN) ejecta components from the observation of a combined set of light curves from afterglows of γ-ray bursts and KNe. We used a sample of simulated light curves from the aforementioned events as they would have been seen during the LSST survey to study how the choice of observing strategies impacts the parameter estimation. We found that the design of observing strategy that is the best compromise between light-curve coverage, observed filters, and reliability of the fit involves a high number of visits with long-gap pairs of about 4 hr every two nights in the same or different filters. The features of the observing strategy will allow us to recognize the different stages of the evolution of the light curve and gather observations in at least three filters.
A Close Look at Lyα Emitters with JWST/NIRCam at z ≈ 3.1
Authors: Liu 刘 Yixiao 一笑 , Dai 戴 Y. Sophia 昱 , Wuyts Stijn , Huang 黄 Jia-Sheng 家声 , Jiang 江 Linhua 林华
Published: May 2024

We study 10 spectroscopically confirmed Lyα emitters (LAEs) at z ≈ 3.1 in the Ultra Deep Survey field, covered by the James Webb Space Telescope/NIRCam in the Public Release Imaging for Extragalactic Research program. All LAEs are detected in all NIRCam bands from F090W to F444W, corresponding to rest frame wavelengths of 2200 Å to 1.2 μm. Based on morphological analysis of the F200W images, three out of the 10 targets are resolved into pair-like systems with separations of <0.″9, and another three show asymmetric structures. We then construct the spectral energy distributions (SEDs) of these LAEs, which show little to no extinction. All sources, including the pairs, show similar SED shapes, with a prominent flux excess in the F200W band, corresponding to extremely strong [O iii]+Hβ emission lines (EWrest = 740–6500 Å). The median effective radii, stellar mass, and UV slope of our sample are 0.36 kpc, 3.8 × 107
M
⊙, and −2.48, respectively. The average burst age, estimated by stellar mass over star formation rate, is <40 Myr. These measurements reveal an intriguing starbursting dwarf galaxy population lying off the extrapolations of the z ∼ 3 scaling relations to the low-mass end: ∼0.7 dex above the star-forming main sequence, ∼0.35 dex below the mass–size relation, and bluer in the UV slope than typical high-z galaxies at similar UV luminosities. We speculate that these numbers may require a larger main-sequence scatter or tail in the dwarf galaxy regime toward the starburst outliers.
On the Detection and Characterization of Quasiperiodic Oscillations in Astronomical Time Series: Gamma-Ray Burst X-Ray Light Curves as a Test Case
Authors: Song Fei-Fan , Mao Jirong
Published: May 2024

The study of temporal properties of variable sources can elucidate their physical processes. In this context, we present a critical study comparing three approaches to periodic or quasiperiodic behavior: Gaussian process, power spectrum, and wavelet analysis, using celerite, Lomb–Scargle periodograms, and weighted wavelet Z-transforms, respectively. We use 15 Swift X-ray Telescope light curves of short gamma-ray bursts (sGRBs) as examples. A comprehensive analysis of two sGRB X-ray light curves is performed. The results reveal the importance of artifacts, largely in the form of false quasiperiodic oscillation signals, possibly introduced by preprocessing (such as detrending) or other aspects of the analysis. The exploration described in this paper can be helpful for future studies of variability in gamma-ray bursts, active galactic nuclei, and other astronomical sources.
A Joint Microwave and Hard X-Ray Study toward Understanding the Transport of Accelerated Electrons During an Eruptive Solar Flare
Authors: Mondal Surajit , Battaglia Andrea F. , Chen Bin , Yu Sijie
Published: May 2024

The standard flare model, despite its success, is limited in comprehensively explaining the various processes involving nonthermal particles. One such missing ingredient is a detailed understanding of the various processes involved during the transport of accelerated electrons from their site of acceleration to different parts of the flare region. Here we use simultaneous radio and X-ray observations from the Expanded Owens Valley Solar Array and the Spectrometer/Telescope for Imaging X-rays on board the Solar Orbiter, respectively, from two distinct viewing perspectives, to study the electron transport processes. Through detailed spectral modeling of the coronal source using radio data and footpoint sources using X-ray spectra, we compare the nonthermal electron distribution at the coronal and footpoint sources. We find that the flux of the nonthermal electrons precipitated at the footpoint is an order of magnitude smaller than that trapped in the looptop, consistent with earlier works that primarily used X-ray for their studies. In addition, we find that the electron spectral indices obtained from X-ray footpoints are significantly softer than the spectral hardness of the nonthermal electron distribution in the corona. We interpret these differences based on transport effects and the difference in sensitivity of microwave and X-ray observations to different regimes of electron energies. Such an understanding is crucial for leveraging different diagnostic methods of nonthermal electrons simultaneously to achieve a more comprehensive understanding of the electron acceleration and transport processes of solar flares.
FAUST. XIV. Probing the Flared Disk in L1527 with Sulfur-bearing Molecules
Authors: Zhang Ziwei E. , Sakai Nami , Ohashi Satoshi , Murillo Nadia M. , Chandler Claire J. , Svoboda Brian , Ceccarelli Cecilia , Codella Claudio , Cacciapuoti Luca , O’Donoghue Ross , Viti Serena , Aikawa Yuri , Bianchi Eleonora , Caselli Paola , Charnley Steven , Hanawa Tomoyuki , Jímenez-Serra Izaskun , Liu Hauyu Baobab , Loinard Laurent , Oya Yoko , Podio Linda , Sabatini Giovanni , Vastel Charlotte , Yamamoto Satoshi
Published: May 2024

IRAS04368+2557 in L1527 is a Class 0/I protostar with a clear disk-envelope system revealed by previous Atacama Large Millimeter/submillimeter Array (ALMA) observations. In this paper, we discuss the flared structure of this source with observed sulfur-bearing molecules included in the FAUST ALMA large program. The analyses of molecular distributions and kinematics have shown that CS, SO, and OCS trace different regions of the disk-envelope system. To evaluate the temperature across the disk, we derive rotation temperature with the two observed SO lines. The temperature profile shows a clear, flared “butterfly” structure with the higher temperature being ∼50 K and the central lower temperature region (<30 K) coinciding with the continuum peak, suggesting dynamically originated heating rather than radiation heating from the central protostar. Other physical properties, including column densities, are also estimated and further used to demonstrate the vertical structure of the disk-envelope system. The “warped” disk structure of L1527 is confirmed with our analyses, showing that sulfur-bearing molecules are not only effective material probes but also sufficient for structural studies of protostellar systems.
Accurate Infrared Line Lists for 20 Isotopologues of CS2 at Room Temperature
Authors: Huang 黄 Xinchuan 新川 , Gordon Iouli E. , Tashkun Sergey A. , Schwenke David W. , Lee Timothy J.
Published: May 2024

To facilitate atmospheric and spectroscopic studies of carbon disulfide, or CS2, in both planetary and exoplanetary atmospheres, we adopt the “Best Theory + Reliable High-resolution Experiment” algorithm to generate semiempirical IR line lists for the 20 most abundant CS2 isotopologues, denoted as Ames-296K. The IR lists are computed using the Ames-1 potential energy surface, refined using the experimental transition set and an ab initio dipole moment surface fitted from CCSD(T)/aug-cc-pV(T/Q/5+d)Z dipoles extrapolated to a one-particle basis set limit. The IR lists cover the range of 0–10,000 cm−1, with an S
296K cutoff at 10−31 cm−1/molecule·cm−2 (abundance included). A “natural” IR line list at 296 K includes about 10 million lines of the 20 isotopologues, with their intensities scaled by the corresponding abundances. The zero-point energy, partition functions, and abundances are reported for each isotopologue. The energy levels in the global effective Hamiltonian model for 12C32S2 are adopted to improve the line position accuracy. This new IR list for the main isotopologue is denoted as A+I.296K. Reliable HITRAN2020 line positions are also utilized to improve the accuracy of the 32S12C34S, 32S12C33S, and 32S13C32S isotopologue line lists. The final composite line list is validated against Pacific Northwest National Laboratory experimental cross sections, showing excellent agreement. The agreement supports the quality of the composite line list and the power of synergy between experiment and theory. The new data are proposed for use in updating and expanding the CS2 data in HITRAN and other high-resolution IR databases. Supplementary files are available in Zenodo and AHED.
Natural history collections help resurrecting Glomeris herzogowinensis Verhoeff, 1898 and further clarify the nomenclature of two Onychoglomeris subspecies of Attems (Diplopoda, Glomerida, Glomeridae)
Authors: Antić Dragan , Wesener Thomas , Akkari Nesrine
Published: May 2024

Based on the study of freshly-collected material and old museum specimens, we have solved a decades-old riddle surrounding the nameOnychoglomeris herzogowinensis(Verhoeff, 1898). The southern Dinaric coastal speciesGlomeris herzogowinensisVerhoeff, 1898 is revived, whileOnychoglomeris herzogowinensis australisAttems, 1935 andO. h. mediaAttems, 1935, are treated here as full species after returning the specific name toGlomerisLatreille, 1902,O. australisAttems, 1935,stat. nov.andO. mediaAttems, 1935,stat. nov.Besides the designation of lectotypes, we provide comprehensive illustrations, diagnoses, detailed remarks and a distribution map for all three species. In addition, DNA barcoding provided COI sequences forGlomeris herzogowinensisandOnychoglomeris australisstat. nov., along with the first barcoding data of one additional species ofOnychoglomerisVerhoeff, 1906,O. ferraniensisVerhoeff, 1909 and twoGlomerisspecies, the BalkanG. balcanicaVerhoeff, 1906 and the trans-AdriaticG. pulchraKoch, 1847. The significance of historical specimens from natural history museums is briefly discussed.
Multiple solutions for quasi-linear elliptic equations with Berestycki-Lions type nonlinearity
Authors: Wu Maomao , Liu Haidong
Published: May 2024

We studied the modified nonlinear Schrödinger equation

 0.1  \begin{document}$ \begin{equation} -\Delta u-\frac12\Delta(u^2)u = g(u)+h(x), \quad u\in H^1({\mathbb{R}}^N), \end{equation} $\end{document}

where $ N\geq3 $, $ g\in C({\mathbb{R}}, {\mathbb{R}}) $ is a nonlinear function of Berestycki-Lions type, and $ h\not\equiv 0 $ is a nonnegative function. When $ \|h\|_{L^2({\mathbb{R}}^N)} $ is suitably small, we proved that (0.1) possesses at least two positive solutions by variational approach, one of which is a ground state while the other is of mountain pass type.
Solving delay integro-differential inclusions with applications
Authors: Alshehri Maryam G. , Aydi Hassen , Hammad Hasanen A.
Published: May 2024

This work primarily delves into three key areas: the presence of mild solutions, exploration of the topological and geometrical makeup of solution sets, and the continuous dependency of solutions on a second-order semilinear integro-differential inclusion. The Bohnenblust-Karlin fixed-point method has been integrated with Grimmer's theory of resolvent operators. Ultimately, the study delves into a mild solution for a partial integro-differential inclusion to showcase the achieved outcomes.
What makes a successful industrial heritage park?—China's experience based on the ecosystem cultural services perspective
Authors: Han Sunny Han , Li Yujing , Yu Peiheng
Published: May 2024

The transformation of downtown industrial spaces is prevalent in cities in China and the global South. Because of economic development and social transformation, former factories no longer carry out production activities and are abandoned. Industrial heritage parks, as integrated urban parks with new cultural and ecological paradigms, provide unique cultural ecosystem services (CES) that contribute to the sustainable development of urban renewal. Assessing their CES to identify public satisfaction is essential for urban green space planning and management and for enhancing human well-being. Thus, we tried to investigate public perceptions of CES in industrial heritage parks and explored the relationship between public satisfaction with CES and high-quality industrial heritage parks. Using importance-satisfaction analysis (ISA) to assess CES based on public perceptions, the cultural ecosystem services importance satisfaction analysis (CES-ISA) framework was established. Two successful examples of industrial heritage renewal in China, Qijiang Park, and Shougang Park were selected as case studies. The results indicated that: ⅰ) There is a positive correlation between public importance-satisfaction feedback at the cultural level and high quality industrial heritage parks; ⅱ) the recreational, aesthetic and cultural heritage, and spiritual services provided by industrial heritage parks were the types of CES most valued by the public; ⅲ) improving the sense of place service is key to enhancing public satisfaction and promoting the sustainability of industrial heritage parks; ${\rm{iiii}}$) the CES-ISA framework can identify differences between public perceptions of importance and satisfaction with CES. It is beneficial to obtain management priorities for cultural services in industrial heritage parks.
Introduction
Authors: Ngidi Sandile B.
Published: May 2024

No abstract.
Development and Performance Evaluation of an Integrated Bio-degradable Kitchen Waste Comminution and Drying Machine
Authors: Edeh John , Ozioko Raphael , Obilor Caleb , Nwosu James , Okafor Izuchukwu
Published: May 2024

In this study, a kitchen waste comminution machine for converting biodegradable waste was designed, fabricated, and evaluated, using locally sourced standard materials. The machine consists of two unit operations: the comminution unit for grinding/shredding of the biodegradable domestic waste using grinding discs and the drying unit for moisture removal from the ground material using a heating element. The units were integrated and synchronized for continuous operation using a pulley-belt arrangement and powered by a single phase 2 HP electric motor. The drying unit equipped with an auger-like shaft for material stirring and conveying/evacuation was lagged for the prevention of excessive heat loss. The performance of the machine was evaluated using various kitchen wastes of tuber peels, fruit peels, vegetable stalks, and grain chaffs for shredding efficiency, throughput capacity, and dryness. The approximate values of the designed machine were established, as a force of 150 N and heat of 2 kW were required for respective grinding and drying of an average mass of 5.87 kg of the bio-waste. The machine performance analysis revealed comminution/shredding efficiency of 71.08%, drying efficiency of 32.78%, and throughput of 0.05 kg/s at an average moisture removal rate of 0.018 kg/s for bio-waste conversion. The production cost of the machine stood at N 250,000 (Two hundred and fifty thousand naira) only. Thus, the adoption of this innovation is recommended as a veritable option for the quality management of domestic kitchen waste since it reduces littering and promotes hygiene.
Development of A Robotic Maize Seed Planter
Authors: Ayanniran Felix , Adekunle Adefemi , Bello Segun , Adisa Kehinde
Published: May 2024

The automatic maize seed planter design to address the limitations of traditional planting techniques and reduce the lead time in agricultural processes and enhance the output. The research encompasses a comprehensive study of maize sowing techniques, challenges, and advancements in agricultural robotics. The literature review explores the limitations of traditional maize sowing techniques, such as inaccurate seed placement, labor intensiveness, and weather dependence. The construction process involves the integration of a chassis, wheels, sensors, microcontroller, and seed dispensing system. The software component utilizes a custom algorithm to control the movement and seed placement of the robot. Experimental testing and evaluation were conducted to assess the performance of the robot. The accuracy of seed placement was determined by analyzing the deviation from the desired spacing. The efficiency of the robot was measured by comparing the time taken for sowing with traditional methods. The results demonstrated that the automatic maize seed planter achieved high accuracy in seed placement with minimal deviation from the desired spacing. The results validate the effectiveness of the robotic system in addressing the limitations of traditional sowing techniques and demonstrate its potential to revolutionize the agriculture industry. The objectives are to develop a cost-effective, efficient, and accurate maize seed planter and implement the design in the fabrication. Recommendations for further work is real-time mapping and monitoring. Real-time mapping and monitoring of the field can help the robot navigate the field more efficiently and accurately.
Friction Welding Processes: A Review
Authors: Ojetoye Abiodun , Akangbe Samson , Olorunda Oludare
Published: May 2024

Friction welding is a sort of solid-state welding process that does not use flux, shielding gases, or filler metal; instead, the heat needed to fuse the materials is produced by the friction between two or more objects moving relative to one another. This kind of welding is an alternative to the traditional fusion and adhesive-based welding procedures. The method is reliable, capable of joining materials that would seem hard to join with traditional welding, and suitable for joining both similar and dissimilar materials including wood, steel, aluminum, copper, masurium, nickel, zinc and carbon steel. Friction welding can be carried out by using several techniques including linear, rotary, friction stir, direct drive and inertia welding. Each of these welding techniques is distinct and are named according to the relative motion involved. Although the process varies slightly subject to the type of motion, the procedure is consistent and the resultant joint is comparable with those obtained through conventional welding technique. This study reviews the distinct friction welding processes and specific techniques involved in the process.
Reducing Road Mishaps: A CNN Model for Driver Fatigue Detection
Authors: Sobowale Adedayo , Abdul-Hameed T. , Sobowale Peace , Ogunleye Adeshola
Published: May 2024

Over the last few decades, there have been substantial developments in a variety of domains, including computer science, artificial intelligence, and machine learning, which has accelerated the evolution and application of intelligent systems in specific areas such as transportation. One way these systems are used in transportation is through fatigue detection, and to enable this technology, Convolutional Neural Networks serve as the foundation on which this system is built. CNNs are frequently employed in computer vision applications because they can automatically extract pertinent features from input data without the need for manual feature engineering. This CNN-based fatigue detection system was built in-order to address the repercussions of fatigued driving by monitoring the driver’s facial features in real-time so as to predict the fatigue levels and send out an alert to restore the driver’s alertness level so as to reduce road mishap. The system relies on visual input from a camera, which sends this input to a fatigue detection program installed on a Raspberry Pi microprocessor and sends out via alerts via a display and audio alerts via a piezoelectric buzzer. The model shows excellent performance, consistently achieving high accuracy, peaking at 97.34% on the 64th epoch, and consistently maintaining high validation accuracy, reaching 96.02% in the 67th epoch, indicating its ability to function effectively.
Professional Training Of Librarians And Service Delivery In Public Libraries In Nigeria
Authors: Mayen Ndaro Igajah , Mfon Bassey Mary , Margaret Sylvanus Umoh , Joy Bassey Edim
Published: May 2024

The main purpose of the paper was to examine professional training of librarians and service delivery in public libraries in Nigeria. It is an opinion paper and therefore expository in nature. The paper discussed the history of public libraries in Nigeria and service delivery. The paper critically reviewed the professional training of librarians in public libraries. It also exposed various library services, such as current awareness, user education, inter-library loan, circulation, reprographic service and challenges affecting the services in the public libraries. The paper recommended among others, professional training for librarians with digital skills to enhance their productivity for efficient and effective service delivery.
Nigerian Dramatists and the Postcolonial Dreams: Poetics of Ethnic Unity in Diversity
Authors: Atanda Yemi
Published: May 2024

This study examines the ideological persuasions of the pioneer Nigerian dramatists given their penchant to edifying the former British  colony. Drawing on primary and secondary data, the study contends that contemporary Nigerian playwrights are steep in their ‘social commitments’ to aspire for a better and unified nation, in the face of ethnic diversities. It critically analyses, John Iwuh’s Birthright and  Barclays Ayakoroma’s Castle in the Air, using Ngugi wa Thiong’O’s conceptualization of Liberation and Abiola Irele’s Alienation as a conceptual footing to demonstrate the exceptional social visions in the selected plays. In doing this, the study unpacks the boundary  crossing between aesthetic, social-political and cultural realities to reconfigure the fractious environment for the holistic integrated and a  better postcolonial Nigeria.
A Contrastive Analysis of Reporting Verb Usage in English and Okpameri
Authors: Farinde Raifu O. , Omolaiye Happy O.
Published: May 2024

Reporting verbs are used to report the expression of a language user. Usage of reporting verbs in utterances varies in languages. These variations sometimes pose problem to ESL learners. Predicating this study on Contrastive Analysis, the study generated Okpameri data  from text instrument administered to SS 3 students in Okpameri linguistic environment. Participatory observation is also adopted for  data collection. English data were got from the English grammar texts. From the findings, the two languages are grammatically marked  for reporting verbs. However, the usage of these reporting verbs differs. While reporting verbs in English have unlimited vocabulary  choices, reporting verbs in Okpameri have limited vocabulary choices. Also, English reporting verbs are morphologically realized for tense  and number, but this is not so in Okpameri as Okpameri reporting verbs are not morphologically inflected. The use of English  reporting verbs are context-based. This is not so in Okpameribecausethereportingverb‘ai’inOkpameriforinstance,is used to suggest that  the speaker has given information, whereas in the real sense of it, the speaker intends to give an order or issue a query. This study,  therefore, suggests that English language experts, should adopt systematic approach to the teaching of reporting verbs as this will  broaden the knowledge of Okpameri ESL learners.
Role of Bank of Agriculture in Fostering Agricultural Development in Nigeria
Authors: Alfa Yusuf Baba , Alfa Abdulmumini Baba
Published: May 2024

This research work examines the role Bank of Agriculture Limited plays in fostering agricultural development in Nigeria. Primary data was obtained by distributing 120 questionnaires to farmers who benefitted from the Bank’s credit facility, linear regression analysis was employed and the result reveals that credit advance contributes 24.13% in increasing farmers’ output which translates to agricultural development. It was therefore recommended that the government should firstly invest in the agricultural sector by making provisional allocations in the annual budget for the Bank; secondly, the Bank should streamline the loan application, processing and approval procedure to ease access to credit; thirdly, enact policy that will mandate civil servants to have personal account with the Bank to help raise the liquidity position of the Bank; and lastly, direct the Central Bank to issue all financial transaction licenses to the Bank including such that would enable the Bank deal in foreign exchange transactions.