115,637 research outputs found
PEMIKIRAN H. ABDULLAH AHMAD TENTANG PENDIDIKAN DASAR ISLAM
Get PDFThis research aims to develop a series of studies on H. Abdullah Ahmad's thoughts on Islamic basic education. The author brings back the thoughts of these figures, because he is a figure who has a major contribution to the modernization of Islamic basic education, especially in West Sumatra but not too many know about it. With hope, the conception of basic Islamic education offered by this figure is able to inspire elements of education implementers.
The focus of the problem in this study are (1) H. Abdullah Ahmad's thoughts on Islamic basic education seen from the aspects of curriculum, methods, and learning media, (2) Implementation of H. Abdullah Ahmad's thoughts on Adabiah's Islamic basic education in Padang today.
This study uses descriptive analytical qualitative research with the type of library research. The subjects in this study are books relating to H. Abdullah Ahmad's thoughts on Islamic basic education and field research as supporting data.
The results of this study indicate that (1) H. Abdullah Ahmad's thoughts about Islamic basic education are seen from various aspects, namely: curriculum aspects, method aspects, media aspects. He applied the three aspects by creating a school called 'Adabiah School'. (2) The implementation of H. Abdullah Ahmad's thoughts on Adabiah Islamic basic education in Padang at the present time there are still some that are applied but are more varied than in the early days of the establishment of
Adabiah schools both in terms of curriculum, methods and learning media. It aims to improve the quality of Adabiah schools in the future
Evolution of dental surgery and orthodontic techniques: a historical perspective
Get PDFThis study explores the evolution of dental surgery and orthodontics, highlighting key advancements
from historical practices to modern techniques. Significant developments include the introduction of
anesthesia, digital technologies, and innovative orthodontic appliances. These changes have improved patient
care, comfort, and treatment outcomes
A steady-state kinetic interface-sensitive tracer (KIS-SST) method to measure capillary associated interfacial area in a simultaneous co-flow condition
No full texthttp://dx.doi.org/10.13039/501100001659 Deutsche Forschungsgemeinschaf
Efeitos da heterogeneidade em macroescala no teste de traçador sensível à interface cinética para medir a área interfacial fluido-fluido em fluxo bifásico dinâmico em meios porosos
No full textAbstract A novel reactive smart tracer method, termed the kinetic interface-sensitive (KIS) tracer test, has been demonstrated in laboratory column experiments to enable measurement of the specific capillary-associated fluid–fluid interfacial area in dynamic two-phase flow displacement processes in porous media. Development of the tracer method towards effective application in real field conditions requires investigation of the influence of the porous media heterogeneity on the front size and the specific interfacial area, and, consequently, in how far a kinetic interface-sensitive tracer experiment, and the corresponding breakthrough curves, are affected. This study employs a two-dimensional Darcy-scale two-phase flow reactive transport model to investigate numerically the KIS tracer transport in heterogeneous porous media. Simulations were carried out for the primary drainage process in a domain formed of fine and coarse porous media. Various heterogeneity patterns, having different numbers of inclusions and different geometrical distributions, were studied. It is shown that the shape of the breakthrough curves can be used as an indicator for quantifying the displacement front roughness, the specific interfacial area in the domain, and the domain heterogeneity, e.g., the existence of preferential flow pathways inside the porous media. The results indicate that when the displacement front roughness is small, the concentration breakthrough curves exhibit a linear increase. The slopes of the breakthrough curves linearly depend on the fraction of the bulk volume occupied by the low-permeability sand inclusions. The volume-averaged specific interfacial area and the size of the transition zone can be determined from the slopes of the breakthrough curves.Résumé Une nouvelle méthode de traceur réactif intelligent, appelée essai de traçage sensible à l’interface cinétique (KIS), a été démontrée dans des expériences de colonne de laboratoire pour permettre la mesure de la zone interfaciale fluide-fluide spécifique associée aux capillaires dans les processus dynamiques de déplacement de l’écoulement diphasique dans les milieux poreux. Le développement de la méthode de traçage en vue d’une application efficace dans des conditions réelles sur le terrain nécessite d’étudier l’influence de l’hétérogénéité du milieu poreux sur la taille du front et la zone interfaciale spécifique et, par conséquent, dans quelle mesure une expérience de traçage sensible à l’interface cinétique (et les courbes de restitution correspondantes) est affectée. Cette étude utilise un modèle de transport réactif à deux dimensions à l’échelle de Darcy pour étudier numériquement le transport du traceur KIS dans des milieux poreux hétérogènes. Des simulations ont été effectuées pour le processus de drainage primaire dans un domaine formé de milieux poreux fins et grossiers. Différents schémas d’hétérogénéité, avec différents nombres d’inclusions et différentes distributions géométriques, ont été étudiés. Il est démontré que la forme des courbes de restitution peut être utilisée comme indicateur pour quantifier la rugosité du front de déplacement, la zone interfaciale spécifique dans le domaine et l’hétérogénéité du domaine, c’est-à-dire l’existence de voies d’écoulement préférentielles à l’intérieur du milieu poreux. Les résultats indiquent que lorsque la rugosité du front de déplacement est faible, les courbes de percée de concentration présentent une augmentation linéaire. Les pentes des courbes de percée dépendent linéairement de la fraction du volume apparent occupée par les inclusions de sable peu perméables. La région interfaciale spécifique moyenne en volume et la taille de la zone de transition peuvent être déterminées à partir des pentes des courbes de restitution.Resumen Se ha demostrado en experimentos de laboratorio en columna un nuevo método de trazador reactivo inteligente, denominado ensayo de trazador cinético sensible a la interfase (KIS), que permite medir el área interfacial específica fluido-fluido asociada a capilares en procesos dinámicos de desplazamiento de flujo bifásico en medios porosos. El desarrollo del método del trazador hacia una aplicación efectiva en condiciones reales de campo requiere la investigación de la influencia de la heterogeneidad del medio poroso sobre el tamaño del frente y el área interfacial específica y, en consecuencia, en qué medida se ve afectado un experimento cinético de trazador sensible a la interfase (y las correspondientes curvas de ruptura). Este estudio emplea un modelo bidimensional de transporte reactivo de flujo bifásico a escala de Darcy para investigar numéricamente el transporte del trazador KIS en medios porosos heterogéneos. Se realizaron simulaciones para el proceso de drenaje primario en un dominio formado por medios porosos finos y gruesos. Se estudiaron varios patrones de heterogeneidad, con diferentes números de inclusiones y diferentes distribuciones geométricas. Se demuestra que la forma de las curvas de ruptura puede utilizarse como indicador para cuantificar la rugosidad del frente de desplazamiento, el área interfacial específica en el dominio y la heterogeneidad del dominio, por ejemplo, la existencia de vías de flujo preferenciales en el interior de los medios porosos. Los resultados indican que cuando la rugosidad del frente de desplazamiento es pequeña, las curvas de avance de la concentración muestran un aumento lineal. Las pendientes de las curvas de penetración dependen linealmente de la fracción del volumen ocupado por las inclusiones de arena de baja permeabilidad. El área interfacial específica promediada por volumen y el tamaño de la zona de transición pueden determinarse a partir de las pendientes de las curvas de penetración.摘要 一种新型的反应性智能示踪方法，称为动力学界面敏感(KIS)示踪试验，在实验室柱实验中已被证明可以测量多孔介质中动态两相流位于毛细管之间的特定液-液界面积。将示踪方法有效应用于实际现场条件，需要研究多孔介质非均质性对锋面尺寸和单位界面面积的影响，以及相应的动力学界面敏感示踪试验(和相应的穿透曲线)的影响程度。本研究采用二维达西尺度两相流反应传输模型，在非均质性多孔介质中进行数值研究动力学界面敏感示踪剂的传输。模拟了细和粗多孔介质组成的主要排水过程。研究了各种非均质性模式，包括不同数量的组成和不同的几何分布。结果表明，穿透曲线的形状可以用作量化位移前缘粗糙度、领域内单位界面面积以及场的非均质性(例如多孔介质内部的优势流路径)的指标。结果表明，当位移前缘粗糙度很小时，浓度穿透曲线呈线性增长。穿透曲线的斜率线性依赖于低渗透率砂岩组分占据的体积分数。从穿透曲线的斜率可以确定体积平均单位界面面积和过渡区域的大小。Resumo Um novo método de rastreador inteligente reativo, denominado teste de rastreador sensível à interface cinética (KIS), foi demonstrado em experimentos de coluna de laboratório para permitir a medição da área interfacial fluido-fluido associada a capilares específicos em processos dinâmicos de deslocamento de fluxo bifásico em meios porosos. O desenvolvimento do método de traçador para uma aplicação efetiva em condições reais de campo requer a investigação da influência da heterogeneidade do meio poroso no tamanho da frente e na área interfacial específica e, consequentemente, até que ponto um experimento de traçador sensível à interface cinética (e o correspondente curvas de determinação) são afetados. Este estudo emprega um modelo bidimensional de transporte reativo de fluxo bifásico em escala de Darcy para investigar numericamente o transporte de traçadores KIS em meios porosos heterogêneos. Simulações foram realizadas para o processo de drenagem primária em um domínio formado por meios porosos finos e grossos. Vários padrões de heterogeneidade, com diferentes números de inclusões e diferentes distribuições geométricas, foram estudados. É mostrado que a forma das curvas de determinação pode ser usada como um indicador para quantificar a rugosidade da frente de deslocamento, a área interfacial específica no domínio e a heterogeneidade do domínio, por exemplo, a existência de caminhos de fluxo preferenciais dentro do meio poroso. Os resultados indicam que quando a rugosidade da frente de deslocamento é pequena, as curvas de determinação da concentração apresentam um aumento linear. As inclinações das curvas de determinação dependem linearmente da fração do volume total ocupada pelas inclusões de areia de baixa permeabilidade. A área interfacial específica com média de volume e o tamanho da zona de transição podem ser determinados a partir das inclinações das curvas de determinação
A numerical investigation to assess changes to displacement front and by-passed zones employing kinetic interface-sensitive tracer
No full texthttp://dx.doi.org/10.13039/501100001659 German Research Foundatio
Syekh Abdullah Ahmad Figure of Renewal Islamic Education
Get PDFThis research aims to find out what Abdullah Ahmad's idea of renewing Islamic education was. The type of research used is qualitative research with a historical approach. This research data was taken from the Google Scholar database, the author used Google Scholar as the main source of information by analyzing documents related to the idea of renewing Islamic education by Abdullah Ahmad. The results of this research show that first, the curriculum according to H. Abdullah Ahmad is that there is no separation between general knowledge and religious knowledge, the two must be balanced, not separated. Second, effective learning methods according to H. Abdullah Ahmad, namely; (a) debating club method, (b) praise and punishment method, (c) play and recreation method. Third, the learning media offered by H. Abdullah Ahmad uses a system of using tables, chairs and whiteboards in the learning process. Fourth, Media, the use of print media as a learning medium according to H. Abdullah Ahmad is also necessary so that the educational message reaches the learning objectives. Fifth, Education Cost Budget. With the change to HIS, Adabiyah succeeded in getting subsidies from the Dutch colonial government
A 2 h periodic variation in the low-mass X-ray binary Ser X-1
No full textSpectroscopy of the low-mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ?2 h periodic variability that is present in the three strongest emission lines. We tentatively interpret this variability as due to orbital motion, making it the first indication of the orbital period of Ser X-1. Together with the fact that the emission lines are remarkably narrow, but still resolved, we show that a main-sequence K dwarf together with a canonical 1.4 M? neutron star gives a good description of the system. In this scenario, the most likely place for the emission lines to arise is the accretion disc, instead of a localized region in the binary (such as the irradiated surface or the stream-impact point), and their narrowness is due instead to the low inclination (?10°) of Ser X-1
Divisibility of reduction in groups of rational numbers II
No full textGiven a finitely generated multiplicative group of rational numbers, we compute thedensity of the set of primes for which the order of the reduction group is divisible by agiven integer. Earlier work considers the case of groups of positive rationals. Here, weconsider the general case. In the second part of the paper, we test our formulas withseveral tables
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Pemikiran Tasawuf K. H. Raden Abdullah Bin Nuh Dan Relevansinya Dalam Konteks Kehidupan Era Modern
No full textK. H. Raden Abdullah Bin Nuh was a charismatic cleric who also acted as a scholar, writer, linguist, journalist, educator, radio broadcaster, and trilingual dictionary writer. He promoted the philosophy of lifelong education, which includes formal and informal learning in various locations and times. This study aims to examine the concept of Sufism of K. H. Raden Abdullah Bin Nuh and its relevance in modern life. This study uses a Library Research approach to collect data from relevant books, journals and scientific articles. The analysis of K. H. Raden Abdullah Bin Nuh's Sufism thoughts was carried out using a philosophical method to understand the concept of Sufism as a whole and relate it to a broader context. This study found that K. H. Raden Abdullah bin Nuh taught Sufism by referring to the examples of the Prophet, his companions, and scholars such as Imam Syafi'i and Al-Ghazali. The Sufism he developed, along with Sufi Islamic psychology, aimed to help humanity face the challenges of life, and achieve balance between worldly life and the hereafter. Through dhikr, worship, and example based on the Koran and Sunnah, he teaches Sufism as a way to heal and protect individuals from various problems
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