bluuebunny/crossref_metadata_2025 huggingface dataset:
Tasavvuf-Hadis Bağlantısına Dair Önemli Bir Neşir: Ebu’l-Kasım Abdulkerîm el-Kuşeyrî’nin Emali’si
Authors: Gür Mehmet Sadık
Published: December 2024

Bu çalışma, önemli bir müessir, muhaddis ve mutasavvıf olan Ebu’l-kâsım Abdülkerim b. Hevâzin el-Kuşeyrî’nin (465/1072) tasavvufi hadis seçkisi olan Emâlî (أمالي أبي القاسم عبد الكريم بن هوازن القشيري) isimli eseri incelemektedir. Horasanlı meşhur sûfî Ebû Abdirrahmân es-Sülemî’nin (412/1021) talebesi ve müridi olan Kuşeyrî, tasavvuf edebiyatının bazı temel kurucu metinlerine imza atmış bir isimdir. Kuşeyrî, meşhur tefsiri Letâʿifu’l-İşârât adlı eserinde hocası Sülemî’nin Hakaʿiku’t-tefsîr isimli eserini örnek almış, ancak daha şümullü bir eser ortaya koyarak sonrasındaki işârî tefsir yazarlarını önemli ölçüde etkilemiştir. Bu makalede, Bilal Orfali ve Francesco Chiabotti’nin Kuşeyrî’nin Emâlî eserine dair tahkik çalışması ve Kuşeyrî’nin hadis seçimi ve yorumlama usulü değerlendirilmiştir. Kuşeyrî, sınırlı bir konu etrafında düzenlediği meclislerin imla yoluyla kayda geçirilmesi sonucu Emâlî/Mecâlis literatürüne önemli bir katkı sağlamıştır. Emâlî türü çalışmalar genellikle hadis ve Arapça’nın sarf, nahiv ve belâgat alanlarında ortaya çıkmakla birlikte akaid ve fıkıh gibi alanlarda da görülmüştür. Ancak Kuşeyrî’nin Emâlîsi, hadis odaklı bir çalışma olarak öne çıkmaktadır ve hadisleri seçme usulüyle dikkat çekmektedir. Klasik kaynaklar ve modern çalışmalar, tasavvufun hadis kültürüyle karşılıklı bir etkileşim içinde olduğunu göstermektedir. Tasavvufun Orta çağ İslam toplumlarındaki rolünün sağlamlaşmasında, hadis kültürüyle olan bu sıkı bağlar büyük bir öneme sahiptir. Tasavvuf ve hadis arasındaki bu etkileşimi daha iyi anlayabilmek için yeni yazma kaynakların bilim dünyasıyla buluşturulması çok önemlidir. Bu makale, tasavvuf ve hadis arasındaki bu bağlantıya ışık tutacak önemli bir belgenin akademik literatüre kazandırılmasını tanıtmayı amaçlamaktadır. Bu çalışma, ele alınan metni analiz etmek ve bağlamını açıklığa kavuşturmak için tanımlayıcı bir yöntem tercih etmektedir.
İlkokul DKAB Dersi Öğretmenlerinin Görüşlerine Göre Kullandıkları Öğretim Yöntemlerinin ve Öğretim Yöntemi Seçme Süreçlerinin Analizi
Authors: Süleymanoğlu Nurcan
Published: December 2024

Araştırmanın amacı, ilkokul DKAB dersi öğretmenlerinin kullandıkları öğretim yöntemlerini tespit etmek ve bu yöntemleri seçme süreçlerinin analiz edilmesidir. Yapılacak çalışma ile ilkokul DKAB dersi öğretmenlerinin derslerde kullandıkları yöntemlerin ve bu yöntemleri seçme süreçlerinde etkili olan faktörlerin ortaya konulması hedeflenmiştir. Araştırma fenomonolojik desen ile tasarlanmıştır. Araştırmanın çalışma grubu, 2023-2024 eğitim-öğretim yılında Diyarbakır ilinin Kayapınar ilçesindeki ilkokullarda görev yapmakta olan 16 Din Kültürü ve Ahlak Bilgisi dersi öğretmeninden oluşmaktadır. Araştırmanın verileri, araştırmacı tarafında hazırlanan yarı yapılandırılmış görüşme formunun öğretmenlere uygulanması ile elde edilmiştir. Elde edilen veriler, Maxqda nitel veri analiz programında, betimsel analiz yöntemi kullanılarak çözümlenmiştir. Araştırma sonucuna göre DKAB öğretmenleri öğretim yöntemi seçme sürecinde dersin kazanımlarını, dersin özelliklerini ve öğrencilerin özelliklerini dikkate alarak sıklıkla anlatım yöntemini, soru cevap yöntemini ve medya görsellerini kullanarak ders anlatmaktadırlar. Araştırmada ilkokul DKAB öğretmenlerinin kullandıkları yöntemleri, din öğretimi için yeterli bulmadıkları ve yeni yöntemlerin geliştirilmesi gerektiğini düşündükleri ortaya çıkmıştır. Elde edilen bulgulardan hareketle ilkokul DKAB öğretmenlerinin öğretim yöntemi seçme süreçleri ve bu süreçte kullanabilecekleri yöntemlere dair önerilerde bulunulmuştur.
Münâsebâtü’l-Kur’ân İlmi Çerçevesinde Tâlût - Câlût Kıssası İle İlgili Âyetlerin Tahlili
Authors: Bulut Hasan
Published: December 2024

Kur’ân’da nübüvvet adı altında işlenen ve peygamberlerin tebliğ faaliyetlerinden söz eden pek çok kıssa anlatılır. Ancak bu kıssaların anlatılışının amacı, sadece peygamberlerin hayat öyküleri hakkında bilgi vermekten ibaret değildir. Asıl maksat, söz konusu kıssa ile neyin amaçlandığını, üzerinde durulan ana düşüncenin ne olduğunu, kıssanın ana konulardan hangisiyle ilişkilendirildiğini açıklığa kavuşturmaktır. Bu amaçla çalışmada, Tâlût ve Câlût kıssasının anlatıldığı Bakara sûresi 246-252. âyetleri bir bütünlük içerisinde anlatılış amacı gözetilerek değerlendirilmiştir. Adı geçen kıssada Yüce Allah tarafından hükümdar olarak gönderilen Tâlût’un, İsrâiloğulları ile neler yaşadığı, İsrâiloğulları’nın nehirle nasıl sınandıkları ve Câlût ordusunun nasıl hezimete uğratıldığı anlatılmıştır. Kıssanın bitiminde ise üzerinde durulan bu gerçeğin, Hz. Peygamber’in risâleti için bir hüccet sayıldığına vurgu yapılmıştır. Zira bu kıssa Bedir Gazvesi sırasında indirilmiş, müminlere motivasyon kaynağı olarak anlatılmıştır. Yapılan literatür taramasında Tâlût ve Câlût kıssasının; Kur’ân’ı-Kerîm ve Kitâb-ı Mukaddes çerçevesinde, siyer bilgisinin önemi, epistemolojik açılardan ele alındığı ancak Hz. Peygamber’in risâletine delil oluş cihetiyle incelenmediği tespit edilmiştir. Söz konusu ihtiyaç göz önüne alınarak çalışmada, kıssanın Hz. Peygamber’in yaşam öyküsüne benzerliği, nübüvvetine delaleti ve ilgili son âyetin bağlamı ve bütünlük içerisindeki münâsebeti tahlil edilmiştir. Bu itibarla münâsebet ilmine dair kısa bilgiler paylaşıldıktan sonra Tâlût’un ataları olan İsrâiloğulları’nın tarihi süreç içerisinde peygamberleriyle olan ilişkilerine yer verilmiştir. Bakara sûresi 246-252. âyetleri ise nüzul ortamında ve âyetler - sûreler arasındaki anlam ilişkisi (münâsebâtü’l-Kur’ân) çerçevesinde yorumlanmıştır.
CÁC LỖI THƯỜNG GẶP TRONG KỸ NĂNG NÓI TIẾNG ANH CỦA SINH VIÊN, THỰC TRẠNG VÀ GIẢI PHÁP
Authors: Đinh Thị Thanh Huyền , Đặng Hiền Diệu , Hoàng Thị Thu Hà
Published: December 2024

Mặc dù là một ngôn ngữ quốc tế, việc nói tiếng Anh trôi chảy vẫn là một trở ngại đối với sinh viên Việt Nam, ngay cả đối với những sinh viên chuyên ngành tiếng Anh. Nghiên cứu này nhằm xác định những lỗi phổ biến nhất trong việc nói tiếng Anh của sinh viên năm thứ hai chuyên ngành tiếng Anh tại một trường đại học được chọn ở miền Bắc Việt Nam. Nghiên cứu chủ yếu tập trung vào ba yếu tố chính quyết định những lỗi mà sinh viên thường gặp phải: phát âm, ngữ pháp và từ vựng. Hơn nữa, nghiên cứu cũng đưa ra một số khuyến nghị quý giá giúp sinh viên vượt qua những trở ngại này.
Sodium Alginate/Graphene Nanoplatelet Nanocomposites: Effect of Crosslinker and Graphene Nanoplatelet Loading
Authors: Kean Chong Lim  , Syarifah Nuraqmar Syed Mahamud  , Muhammad Afiq Zikry Badrolhisham
Published: December 2024

In this article, the effect of crosslinker and filler loading on the properties of sodium alginate/graphene nanoplatelet (SA/GNP) nanocomposites is investigated. The nanocomposites samples were prepared using the solvent casting method. Swelling tests were performed to measure the degree of swelling. It was found that the degree of swelling increased with a longer immersion time in the 0.2M concentration of CaCl2. Interestingly, only a 12-minute immersion time in the 0.8M concentration of CaCl2 resulted in the lowest degree of swelling, which was 93.69%. Analysis of the gel fraction showed an increase in gel content at higher CaCl2 concentrations. To crosslink the SA/GNP nanocomposites, a concentration of 0.8 M CaCl2 and an immersion time of 12 minutes were selected. When the mechanical properties of SA with different CaCl2 concentrations were investigated, it was found that SA crosslinked at the 0.8M concentration had a higher elastic modulus than the 0.2M concentration of CaCl2, which was probably due to the higher crosslinking density. The mechanical properties of SA/GNP nanocomposites were found to decrease with decreasing GNP loading, which can be attributed to the presence of GNP. In addition, higher GNP loading resulted in improved electrical conductivity of the SA/GNP nanocomposites. X-ray diffraction (XRD) analysis proved that the crystallinity of SA increased with longer immersion times and the addition of GNP. Fourier transform infrared spectroscopy (FTIR) showed no significant changes in the peak characteristics of SA when the concentration of CaCl2, immersion time and GNP loading increased.
Eco-friendly Detergent Powder from Waste Cooking Oil using Cold Process: Characterisation and Comparative Evaluation
Authors: Abdul Rahman S. S , Ibrahim S. A. , Hussin R. , Ainuddin A. R. , Kamdi Z.
Published: December 2024

The appropriate disposal of waste cooking oil (WCO) is an urgent environmental concern due to its potential adverse impacts. This study introduces an eco-friendly approach to synthesise detergent powder from WCO using the cold process method. The WCO underwent comprehensive sand characterisation, including pH value, viscosity measurements, and colour observation, revealing properties comparable to new cooking oil (NCO). The detergent powder produced, DWCO (from WCO) and DNCO (from NCO), was compared to a commercial detergent powder (CDP) through a comprehensive evaluation. Fourier-Transform Infrared Spectroscopy (FTIR) analysis revealed characteristics of C−H bonding and O−H bonding in the samples. The detergent foam stability test indicated similar performance for DWCO and DNCO, with a volume loss of 54% and 35%, respectively, after 30 minutes. This study contributes to the sustainable management of WCO by transforming it into eco-friendly detergent powder with comparable performance to commercial alternatives. The utilisation of waste resources in detergent production offers a promising solution for responsible waste disposal and encourages the adoption of green practices in the detergent industry.
Effect of Process Parameters on the Recycled Ageing Polyamide-12 Tensile Strength in Selective Laser Sintering (SLS)
Authors: Irfan Ur Rahman  , Norfariza Ab Wahab  , Mohd Idain Fahmy Rosley  , Lailatul Harina Paijan  , Ranjit Singh  , Mohd Fauzi Mamat
Published: December 2024

Selective laser sintering (SLS) applications are rapidly growing in various sectors such as automobile, aeronautics, biomedical and custom consumer products. The properties of SLS made parts exhibit high dependence on the settings of process parameters, which can be improved by choosing and adjusting sintering conditions accurately. This paper presents research work for evaluating the effect of process parameters on the tensile properties of the part manufactured on Farsoon SS402P SLS from recycled ageing FS 3300PA which is PA-12 based powder and standard operating parameters using Response Surface Methodology (RSM) design of experiments. Typically, the recommendation from the manufacturer’s laser power is 70watt. The research is designed to fabricate the parts by SLS with three-part arrangements i.e. (0-degree XY/Y, 90-degree YZ/Y and 180-degree YZ/Y) by three different value of laser power, which are 67.5watt, 70watt, and 72.5watt with different values of layer thickness i.e. (0.09mm, 0.12mm and 0.15mm). Comparison have been made between the virgin powder and recycled power regarding tensile result. Tensile tests have been performed as per the ASTM D638 standard using recommendations from ISO/ASTM 52921. According to the results, effect of laser power is successfully analyzed by employing tensile strength test.
Magnetite (Fe3O4)-Activated Carbon Composite from Ground Coffee Waste for the Removal of Copper Ions (Cu2+) from Solution
Authors: Siti Norsaffirah Zailan  , Norsuria Mahmed  , Nur Mawaddah Juzaini  , Mohd Natashah Norizan  , Ili Salwani Mohamad  , Aissa Bouaissi
Published: December 2024

The influence of the magnetite addition on the adsorption efficiency of activated carbon (AC) synthesized using different activators was investigated. In this work, the activated carbon from ground coffee waste (GCW) was prepared via activation with phosphoric acid (H3PO4) and potassium hydroxide (KOH), followed by carbonization at 500˚C. The magnetite (Fe3O4)-activated carbon composites were prepared by mixing the activated carbon with Fe3O4 powders. From the X-ray diffraction analysis, both activated carbons produced by H3PO4, and KOH are in the form of amorphous structures. Magnetite peaks can be observed from the magnetite-activated carbon composites. KOH-treated activated carbon shows the formation of porous honeycomb-like structures with large pore size (average diameter 43 m) compared to H3PO4-treated activated carbon where the smaller, non-uniform pore morphology with the average diameter 32 m was formed. The copper ions removal efficiency is the highest for biochar (almost 100%). For treated activated carbon, AC-KOH and MAC-KOH shows the highest adsorption removal efficiency (99.7%) compared to the acid-treated carbon (91.9%). Magnetite itself has good adsorption behaviour (93.6% efficiency) due to its nanocrystalline structure (high surface area) and functional groups.
Characterization of Oxidation Kinetics and Oxide Scale Formation on Isothermal Oxidation of HR-120 Ni-based superalloy at 500ºC
Authors: Noraziana Parimin  , Esah Hamzah  , Astuty Amrin
Published: December 2024

The HR-120 Ni-based superalloy underwent isothermal oxidation at 500°C in order to better understand the oxidation kinetics and the production of oxide scales. To create small and large grain structure, the HR-120 Ni-based superalloy was heat-treated at two distinct temperatures, 950ºC and 1100ºC. A 500°C for 500 h isothermal oxidation test was performed on the heat-treated alloy of the study examined the oxidation kinetics, oxide phase development and oxide surface morphology of alloy that had undergone isothermal oxidation. Plotting weight gain versus surface area allowed for the measurement of oxidation kinetics. The XRD method was used to examine the oxide phase. Surface morphology was investigated with SEM and EDX methods. A parabolic rate law was observed in the oxidation of both heat-treated alloys, suggesting a diffusion-controlled oxide growth mechanism. The alloy’s surface has developed many oxide phases as a result of exposures lasting 500 h. The oxidized samples’ surface morphology after 300 hours shows that overly large Nb-rich oxides are dispersed throughout the continuous oxide scale development. On coarse-grained heat-treated alloys, Nb-rich oxides produced that were abnormally big. This occurrence will initiate a crack that spreads around the oxide.
Effect of ER70s Filler Metal on Mechanical Properties and Corrosion Behaviour of Low Carbon Steel Produced by Gas Metal Arc Welding
Authors: Mohd Fauzi Mamat  , Siti Nadirah Mohd Syukor  , Mohd Faiz Mohd Bokhadi  , Rohah Ab. Majid  , Lailatul Harina Paijan  , Mohd Basri Ali  , Mohd Hadzley Abu Bakar  , Mohd Idain Fahmy Rosley
Published: December 2024

The Gas Metal Arc Welding (GMAW) process is leading the way in arc welding process growth because it is more efficient, economical, and of high quality. The effects of ER70s filler metal on mechanical properties and corrosion behaviour in low carbon steel with a base metal thickness of 12 mm are investigated in this study using robotic gas metal arc welding (GMAW). After the welding process, the quality, microstructure, and micro-hardness of each specimen were measured and the effect was studied. The immersion test was studied using weight loss and corrosion rate measurements for 1, 2, 4, 6, and 8 weeks in the absence and presence of 3.5wt. % NaCl. As a result, the microstructure displayed the different grain boundaries of each parameter that affected the welding parameters. Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) are used to characterise the surface morphology and pitting areas on the welded substrate. The corrosion rate of the welded sample immersed in 3.5wt. % medium was higher than in the absence of NaCl. The SEM results revealed that NaCl played an aggressive role in inducing the corrosion process and producing significant pits on the welded joint, particularly in the HAZ area. This research may provide a significant understanding of how the welding process, filler metal, and low carbon steel metal caused corrosion behaviour in the marine environment, particularly for oil and gas applications.
Effect of Primer Layer and Curing Method on Geopolymer Paste Coating Properties
Authors: Farah Farhana Zainal  , Jie Xin See  , Noraziana Parimin  , Nur Farhana Hayazi  , Sri Hastuty
Published: December 2024

This technical paper presents a comprehensive study on the properties of geopolymer coating applied to mild steel pipelines as a potential alternative to Ordinary Portland cement (OPC) concrete structures. The geopolymer paste was formulated using a mixture of fly ash and alkaline activators, specifically sodium hydroxide (NaOH) solution and sodium silicate (Na2SiO3) solution. Two types of primers, epoxy metal primer and self-etch primer were applied before the geopolymer coating and various curing conditions were investigated. The geopolymer samples were subjected to two different curing processes: one set was cured in an oven at 60°C for 24 hours while the other set was left to cure under ambient conditions. After the curing period, the samples were aged at ambient conditions for 28 days. The properties of the fly ash and geopolymer paste were evaluated through a range of tests including phase analysis, morphology analysis, optical emission spectroscopy (OES) analysis, chemical composition analysis and adhesion strength testing. The results revealed that the geopolymer coatings exhibited surface cracks and efflorescence attributed to unreacted sodium oxide. X-Ray diffraction (XRD) analysis confirmed the presence of quartz, hematite, magnetite, aluminum oxide and mullite in the geopolymer coating. The self-etch primer-coated samples demonstrated improved adhesion and corrosion resistance properties with a denser and more cohesive microstructure. The geopolymer coating when applied with a self-etch primer and cured at 60°C for 2 hours, achieved the highest adhesion strength of 2.2 MPa, indicating strong bonding with the mild steel pipelines. These findings contribute to the understanding of geopolymer coatings and their potential application in enhancing the performance and durability of mild steel pipelines, offering a sustainable alternative to conventional concrete coatings with improved corrosion resistance and adhesion properties.
Incoloy 800HT Weldolet Integrity in Hot Collector: Replica Testing Insights
Authors: Nur Farhana Hayazi  , Ku Adri Azhan Ku Mohamad  , Junaidi Che Halim  , Shaiful Rizam Shamsudin
Published: December 2024

In this paper, the integrity assessment of Primary Reformer’s hot collector weldolet in the fertilizer plant was conducted. It aims to discuss the findings of the relevant weldolet weldments which include dye penetrant test ultrasonic test, in-situ field metallography (replication), hardness measurements and rectification measures. The first step of the steam reforming process takes place in the Primary Reformer, where preheated hydrocarbon and steam mixture is passed downwards through vertical tubes containing catalyst. The hot gas that exited from the catalyst tubes is termed reformed gas and will enter two headers, namely hot and cold collectors. From then, the reformed gas will transform into raw ammonia synthesis gas after undergoing several processes. The facility was commissioned in 2006 and is still in operation. During the Plant Turnaround in 2022, the Primary Reformer’s hot collector weldolet component is categorised as high nickel content material, commercially known as Incoloy 800HT, was detected with circumferential crack at several locations. The operating temperature of the weldolet is 8110C. The observed damage mechanism of the crack was “Aged Phenomenon”. However, at four locations of the weldments, further dye penetrant test (DPT) and metallurgical testing using replica test had observed sigma phase microstructure which is related to sigma phase embrittlement (SPE) without any creep cavity observed. Finally, both occurrences were reported and reviewed.
Improving Cellular Behaviour of Low Modulus Ti-Alloy by Controlling Anodizing Parameter
Authors: Tukur Tsauri Bashir  , Hussain Zuhailawatia , Lockman Zainovia  , Mohamed Abdel-Hady Gepreel
Published: December 2024

The behaviour of biomaterial is widely related to its surface characteristics. Studies indicated that rough surfaces enjoy more clinical success and display more bioactivity than their polished counterparts. In line with this and the commanding effect the anodization parameters have on the overall surface roughness, the effects of the anodization parameter on bioactivity of low modulus Ti-13Mo-2Fe were investigated. Two electrodes in fluoride based organic electrolyte anodization process was used at varying anodization potential and time. At lower potential, no current flow and/or nanopores were seen even after 24hr of anodization time. However, by increasing the potential to 60V at a sweep rate of 50mV/s, the field generated was sufficient to form nanotubes (64.11 ± 2.7 nm) with enormous improvement in average surface roughness. The surface was hydrophilic to cell material and promising bioactivity as attested by good bone-forming ability after 28 days of immersion in simulated body fluid (SBF). It can be concluded that, desired surface aimed at enhancing the bioactivity of low modulus Ti alloy can be achieved under suitable anodization conditions.
The Analysis of the Effect of Printing Orientation Parameter on the Surface Roughness of 3D Metal Printed Specimens
Authors: Muhammad Syafiq Syazwan Abu Zaki  , Mohd Taufik Taib  , Mohd Hadzley Abu Bakar
Published: December 2024

Designing and manufacturing work related to the utilization of rapid prototyping and 3D CAD modeling is popular nowadays since this method is convenient compared to other traditional design and manufacturing methods. The investigation of the effect of 3D printing parameters on surface roughness is familiar since many types of 3D printing machines have been created at present. But for the Selective Laser Melting (SLM) 3D printing machine, the surface roughness experiments are difficult to execute as the SLM's specimens are using metal as the main material. Besides, there are limited studies of previous researchers that study the surface roughness of SLM specimens. Therefore, this paper will discuss the study of the effect of SLM 3D printing parameters on surface roughness using metal (Stainless steel) as the main material. The printing parameters were: the effect of surface area, the effect of height, and the effect of angle printing. Each parameter consists of 3 specimens with different dimensions and orientations. The result will determine which printing condition will give the best result of surface roughness.
Corrosion Behaviour of Mild Steel: Insights from Tafel Extrapolation Analysis in Flowing 3.5% NaCl Solutions and Soil with Diverse Resistivity Levels
Authors: Mahalaksmi Gunasilan  , Shaiful Rizam Shamsudin  , Nursalasawati Rusli  , Mohd Rafi Adzman  , Wan Mohd Haqqi Wan Ahmad
Published: December 2024

The corrosion behaviour of AISI 1006 steel in diverse environmental conditions were comprehensively investigated to offer valuable insights into corrosion mitigation strategies for critical infrastructure protection. This study employed an optical emission spectrometer, pH measurements, soil resistivity assessment, and Tafel extrapolation conducted with a potentiostat. The study encompassed stagnant and flowing 3.5% NaCl solutions, with flow velocities ranging from 0 to 12 km/h, and considered soil corrosiveness based on soil resistivity. In stagnant 3.5% NaCl solutions, minimal corrosion was observed due to limited oxygen availability, resulting in a 6.634 x 10¯3 mm/year corrosion rate. A noteworthy trend was evident in flowing 3.5% NaCl solutions, with corrosion rates peaking at 9 km/h (11.918 x 10¯3 mm/year) and subsequently decreasing at 12 km/h (10.423 x 10¯3 mm/year). This intriguing pattern may be attributed to the potential formation of a protective oxide layer at higher flow velocities, likely due to increased dissolved oxygen and mass transport. The soil's corrosiveness significantly influenced corrosion rates, with lower-resistivity soils exhibiting heightened corrosion rates. In very mildly corrosive soil, AISI 1006 steel displayed a corrosion rate of 2.818 x 10¯4 mm/year. The corrosion rate increased as soil corrosiveness intensified, reaching its peak of 6.319 x 10¯4 mm/year in severely corrosive soil. Extremely corrosive soil led to a corrosion rate of 8.033 x 10¯4 mm/year, as improved soil conductivity accelerated ion transfer and electron flow, ultimately expediting corrosion-related electrochemical reactions. This study enhances the understanding of AISI 1006 steel corrosion in varying conditions, providing critical data for corrosion control in structures and assets, emphasising the need for tailored prevention measures.
Influence of Sodium Chloride on Recycled HDPE in Superhydrophobic Surface Development
Authors: Thor Keat Seng  , Muhammad Salihin Zakaria  , Razif Muhammed Nordin  , Khairul Anwar Abdul Halim  , Nur Farhana Hayazi  , Lokman Hakim Ibrahim
Published: December 2024

Inspired by lotus leaf, superhydrophobic surfaces have emerged rapidly in recent years. It is due to its excellence ability in self-cleaning and corrosion protection, to name a few. In this research, a green superhydrophobic surface was constructed on the surface of recycled High-Density Polyethylene (rHDPE) by utilizing Sodium chloride (NaCl) as a water-soluble surface modifying agent. The treatment process is simple,and cost-efficient as it only used rHDPE and NaCl as the main materials with additional chemicals and at the same time leave no impact on the environment. Variation of NaCl grinding period influenced the value of CA by which 240 minutes grinded NaCl displayed highest CA of 161.4°. This may be attributed by the increase of surface roughness as the grinding time increase. Furthermore, the surface morphology, topography, and self-cleaning ability of superhydrophobic surafce were analyzed to further understand the surface characteristics. The anti-sticking and self-cleaning properties were successfully displayed by the superhydrophobic surface thus, showing its potential as an eco-friendly material.
Physical, Mechanical and Thermal Properties of Hybrid Epoxy/ Multi-Walled Carbon Nanotubes/ Silicon Carbide Conductive Nanocomposites
Authors: Nurul Hani Noor Asmadi  , Siti Salmi Samsudin  , Mohd Shukry Abdul Majid  , Mohd Ridzuan Mohd Jamir  , Azlin Fazlina Osman
Published: December 2024

This study investigates the efficacy of an epoxy composite system that incorporates hybrid nanofillers consisting of multi-walled carbon nanotubes (MWCNTs), and silicon carbide nanoparticles (SiCs), as a means of reinforcing epoxy matrices with enhanced thermal properties. The fabrication of epoxy hybrid nanocomposites was carried out through a solution mixing process involving ultrasonication and planetary centrifugal mixing. Before proceed with the analysing synergistic effect of hybrid filler ratios, the samples were first being investigated on the effect of filler loadings to determine the optimal fillers loading, and it was discussed in other study. It was found that there was a correlation between the thermal properties of the specimens and their respective filler loadings, which an increase in filler loadings led to an increase in thermal properties. The incorporation of 4 vol.% of MWCNTs resulted in a significant enhancement of the thermal conductivity of the composites, reaching a value of 0.46 W/mK. This represents a doubling of the thermal conductivity compared to that of pure epoxy (~0.2 W/mK). Moreover, the hybrid fillers loadings of 3vol.% MWCNT+1vol.% SiC shows a higher thermal conductivity value of 0.48 W/mK which indicates the synergistic effects of hybrid fillers. The epoxy matrix exhibited uniform dispersion of MWCNTs and SiCs, resulting in the establishment of thermally conductive pathways.
Effect of Multiple Reflow Cycles and Isothermal Aging on Shear Strength in SAC305/Sn58Bi/Cu-OSP Hybrid Solder Joint
Authors: Muhammad Luqman Mokhtar  , Flora Somidin  , Mohd Arif Anuar Mohd Salleh
Published: December 2024

This study investigates the effects of multiple reflow cycles and isothermal aging on the shear strength and microstructure of SAC305/Sn58Bi/Cu-OSP hybrid solder joints. The joints combine SAC305 solder spheres and Sn58Bi solder paste reflowed on Cu-OSP substrates. Microstructural analysis revealed two distinct regions: a Bi-rich phase at the bottom and an Ag-rich phase at the top. Reflow cycles and isothermal aging at 85 °C, 125 °C, and 150 °C for up to 120 hours were evaluated for their impact on mechanical performance and reliability. Shear tests at 100 mm/s and 2000 mm/s showed that hybrid joints outperformed conventional SAC305/Cu-OSP joints, even after multiple reflow cycles. Aging at 85 °C and 125 °C had minimal impact on shear strength, indicating good stability under moderate conditions. However, aging at 150 °C, above the melting point of Sn58Bi (138 °C), caused a significant decrease in strength. These findings highlight the potential of hybrid solder joints for improved mechanical performance and thermal stability, offering advantages over conventional solder joints for advanced electronic packaging.
Poder e dominação no “andar de cima” do mundo rural brasileiro
Authors: Meneses Valdênio Freitas , Piccin Marcos Botton
Published: December 2024

O dossiê Poder e dominação no “andar de cima” do mundo rural brasileiro na revista Século XXI   é fruto de um Grupo de Trabalho no X Encontro da Rede de Estudos Rurais, em São Carlos (SP) em 2023.   Nesse 1º volume os artigos trazem diversidade de pesquisas que instigam renovadas agendas sobre as elites e classes dominantes do mundo rural: de antigas fazendas, genealogias de oligarquias rurais até as modernas exposições e lives do agronegócio. Sob diferentes formas, os textos que vêm a público demonstram que produzir ciência social sobre as elites implica em produzir desencantamentos sobre conflitos que dissimulam formas de dominação e violências na sociedade brasileira contemporânea.
Construindo a hegemonia no Oeste da Bahia
Authors: Uema Liza , Romano Jorge Osvaldo
Published: December 2024

Com o aporte da Teoria do Discurso e da Análise dos Marcos Interpretativos, este artigo traz resultados da análise das estratégias discursivas do bloco dos “baiúchos” (“baianos” + “gaúchos”) no Oeste da Bahia, para construção de sua hegemonia, no período entre 2008 e 2022. O Cerrado baiano, historicamente ocupado por comunidades tradicionais, ao experimentar, em finais de 1970, a revolução verde conformada com a chegada de produtores sulistas “gaúchos”, vivenciou a uma profunda reconfiguração agrária, social, cultural e ambiental que foi acompanhada de grilagem de terras, violências e expulsões. O processo de desterritorialização e degradação socioambiental se exacerba no século XXI com a legalização do desmatamento e da retirada das águas, incentivada pelo Estado, visando à ampliação da fronteira agrícola do Matopiba. A análise da trajetória das estratégias discursivas do bloco dos “baiúchos” demostra a eficácia na construção de sua hegemonia nos territórios e na sua influência, em âmbito nacional e internacional, ao conseguir articular suas demandas à identidade de “quem mais preserva o meio ambiente”, principalmente por meio de intervenções educativas junto a comunidades tradicionais de Fecho de Pasto e de sua habilidade de converter o desmatamento e a apropriação das águas em política de Estado.
Correlation between skin and clinical features in systemic sclerosis
Authors: Božić Majstorović Ljubinka , Popović Pejičić Snježana , Ovčina Irma , Ivanović Prodanović Verica , Mrdja Jelena
Published: December 2024

Introduction. Systemic sclerosis (SS) is a complex autoimmune disease characterized by chronic progressive organic sclerosis. The aim of this paper is to show the correlation of ultrasound (US) parameters with Rodnan skin score (mRSS), as well as the clinical involvement of other organ systems. 
Methods. Our study included 24 patients diagnosed with SS and 24 healthy controls. We included demographic, clinical and laboratory parameters, individually and included in the European Scleroderma Trial and Research Disease Activity Index (EUSTAR-DAI) score. To measure skin involvement, we used the modified mRSS and skin ultrasound.
Results. The skin thickness of patients and healthy controls measured by ultrasound showed statistically significant differences (p<0.001). Correlations between mRSS and anti-Scl-70 antibody (p=0.02) and between mRSS and diffusion capacity for carbon monoxide (DLCO) (p=0.03) were shown.
Conclusion. In recent years, the importance of using skin ultrasound in patients with systemic sclerosis has been increasing, due to the fact that this technique can detect skin involvement in the early stages of the disease. The advantages of the method are availability and non-invasiveness, unlike skin biopsy. By standardizing ultrasound skin measurement, it would be possible to implement the method in daily clinical practice.
Masalah Psikologis Pada Siswi Yang Mengajar Keterampilan Berbicara Di Sebuah Smp Islam Di Bakasi
Authors: Faraz Azizah Annisa
Published: December 2024

Tujuan dari penelitian ini adalah untuk mendeskripsikan temuan dan pembahasan terkait proses pembelajaran mahaarah kalam, serta mengidentifikasi problematika psikologis dan dampaknya. Penelitian ini menggunakan pendekatan kualitatif dengan metode studi kasus untuk mendapatkan pemahaman mendalam mengenai proses pembelajaran mahaarah kalam. Teknik pengumpulan data dilakukan melalui observasi di lokasi penelitian, wawancara dengan seorang guru dan lima peserta didik, serta dokumentasi kegiatan pembelajaran di kelas. Teknik sampling yang digunakan adalah purposive sampling, yang bertujuan untuk memilih partisipan yang relevan dengan topik penelitian. Hasil penelitian menunjukkan adanya tiga tahapan yang dilakukan oleh guru dalam pembelajaran mahaarah kalam, yaitu at-Takhthiith, at-Tanfiidz, dan at-Taqyiim. Problematika psikologis yang ditemukan di antaranya kurang percaya diri, malu, gugup, dan cemas. Guru mengatasinya dengan pendekatan, permainan yang relevan, dan ice breaking sehingga problematika psikologis tersebut dapat teratasi. Kesimpulannya, upaya yang dilakukan oleh guru terbukti efektif, dengan nilai peserta didik yang mencapai di atas Kriteria Ketuntasan Minimal (KKM).
The Construction of the Meaning of the Boycott According to the Boycotters on the Israeli-Palestinian Issue
Authors: Tristania Ashari Yolanda , Mukhlisiana Lusy
Published: December 2024

The boycott movement is a public action in response to the genocide situation between Israel and Palestine, which was highlighted by the media at the end of 2023. The public uses all forms of media to spread awareness as widely as possible regarding this boycott movement, one of which is using social media. However, this action did not last long, as can be seen from the fact that several outlets considered pro-Israel were busy again after several months of the boycott movement. So this research was conducted with the aim of finding out the construction of the meaning of boycott according to people who boycott products with the Pro-Israel label. This research focuses on how people construct meaning in a movement that is currently being carried out by society, namely the boycott movement as part of cancel culture. This research was conducted using qualitative research methods with a phenomenological approach proposed by Alfred Schutz to find out how the intrapersonal communication of each boycott perpetrator was formed into a personal construction of meaning regarding the boycott movement they carried out.
Multi-Label Topic Classification on the Qur'an using the K-Nearest Neighbor and Latent Semantic Analysis Methods
Authors: Shabrina Ghina Annisa , Lhaksmana Kemas Muslim
Published: December 2024

The Qur'an, comprising over 80,000 words, 6,236 verses, and 114 surahs, presents a multifaceted and deeply significant text that demands a nuanced understanding of historical context, classical Arabic, and exegesis. To analyze and classify its content, various methodologies have been employed, including K-Nearest Neighbor (KNN) and Latent Semantic Analysis (LSA). This research investigates the effectiveness of combining KNN with LSA for multi-label topic classification of Qur'anic verses. The study reveals that KNN alone achieved a micro average F1-score of 0.49, demonstrating reliable performance particularly for topics such as "aqidah" (creed) and "worldly matters." When LSA was applied with 100 components, there was a decrease in performance, reflected by a drop in the micro average F1-score to 0.43 and an increase in Hamming loss to 0.1657. However, as the number of LSA components increased to 200 and 300, performance improved, with micro average F1-scores rising to 0.45 and 0.47, and Hamming loss values decreasing to 0.1507 and 0.1466, respectively. This indicates that while LSA can enhance KNN performance, optimal results are achieved with a higher number of components
Analysis of Indonesia & Germany Cooperation on Urban Nexus Project in Support of Sdg's No 13
Authors: Imamuddinussalam Mochamad , Muharman Deddy
Published: December 2024

The purpose of this research is to analyze the role of Indonesia and Germany cooperation in supporting the achievement of Sustainable Development Goals (SDGs) number 13 related to climate change, especially in the Urban Nexus project. This research uses a qualitative approach that is analytically descriptive. The research technique used is literature review. This research procedure consists of three steps: (1) preparation in determining the topic, (2) implementation in finding relevant reference sources, and writing down findings from various reference sources. The data was taken from the official websites of ESCAP, GIZ, and ICLEI that describe the Urban Nexus project, news, and research results published in journals. To obtain reliable data, triangulation technique was used as a data validity checking technique. The data analysis technique consists of three stages, namely data reduction, data presentation, and conclusion drawing. The results of the analysis found that the cooperation between Indonesia and Germany in the Urban Nexus project is a successful example of international cooperation in supporting SDG's through a holistic and integrative approach. Indonesia focuses on identifying prospects for Urban Nexus integration at the local and regional levels, integrating various aspects of the environment, infrastructure, supply chain, and services to avoid wasting assets. Meanwhile, Germany contributes with its expertise in technology and sustainable city management, assisting in the design and delivery of solutions, as well as training and operational capacity building
The Role of Service Quality, Satisfaction, and Value Perception in Increase Visitor Interest Study on Dental Poly Services UPT Semanu II Health Center
Authors: Asmalasari Erla , Hidayat M Syamsu , Mulasari Surahma Asti
Published: December 2024

Introduction : Patients who receive quality service, feel very satisfied or happy and receive the expected value, will make repeat visits to health services. Semanu II Health Center in Gunungkidul Yogyakarta during 2019-2022 experienced a decrease in patient return visits. Objective : The purpose of the study was to determine the effect of service quality, visitor satisfaction and perceived value both partially and simultaneously on the intention to revisit visitors at the Semanu II. Research Method : The research method used is a quantitative research method The population in the study was all visitors to the dental clinic who had visited the Semanu II Health Center in Yogyakarta, totaling 3,358 visitors. The sampling technique used accidental sampling. The number of samples was 97 visitors with the provision of using the Slovin formula. The technical data collection questionnaire will be carried out after visitors or patients are examined. The service staff will provide a questionnaire sheet to visitors or patients after they have been examined. Result : The results of the research are that there is an influence of service quality, satisfaction and perceived value on visitors interest in repeat visits, that service quality, satisfaction and perceived value partially and simultaneously had a significant positive effect on the intention to revisit. The ranking results found that the influence of satisfaction was more dominant than the influence of service quality and perceived value on the intention to revisit. Conclusion : Service quality, satisfaction, Perceived value simultaneously positive effect on visitor interest in repeat visits.
Patria Mud Body Modification Study on Komatsu HD785-7 Unit for Overburden Transportation
Authors: Supriyanto Supriyanto , Pribadi Wikan Joshua , Tammu Steven , Prida Pratama Aadjudia , Rafly Adha Muhammad , Azis Mulyanti Anggun
Published: December 2024

Coal mining activities require reliable means of transportation to support productivity and safety. PT AMM site ABP Energy uses a Komatsu HD785-7 off-highway dump truck with a Mud Body vessel and a Std Light Vessel which has significant differences in empty weight and payload capacity. The heavier Vessel Mud Body increases fuel consumption and the risk of overloading. This study aims to examine the modification of the Mud Body vessel to be lighter without reducing the payload capacity. The methods used include secondary data collection from technical specifications and modification simulation analysis. The results of the study show that the partial cutting of the side wall vessel of the Mud Body can reduce the empty weight by up to 3,345 kg, close to the specifications of the standard vessel. These modifications improve fuel efficiency, minimize the risk of overloading, and maintain the reliability of the unit. In conclusion, planned modifications are effective in improving operational efficiency and lowering operational costs without sacrificing safety and productivity.
Cuidado humanizado a la persona en estado crítico y familia: Percepción de enfermería
Authors: Jimenez Barrera Maricelys , Muñoz Pilataxi Carla , Zambrano González Sandy
Published: December 2024

El cuidado humanizado en personas en estado crítico y sus familias impacta en la calidad de atención y en el bienestar emocional. Objetivo: describir el cuidado humanizado brindado por el profesional de enfermería a la persona en estado crítico y a su familia en la unidad de cuidados intensivos. Material y método: se utilizó un enfoque cualitativo con diseño descriptivo de tipo revisión bibliográfica. La población estuvo compuesta por 30 artículos obtenidos de bases de datos como Scopus, Scielo y Google Scholar; la muestra fue de 20 artículos seleccionados mediante criterios de elegibilidad. Los artículos fueron analizados por el método inductivo. Resultado: 4 artículos que abordaron la importancia del cuidado humanizado en la UCI; 4 estudios que permitieron afrontar el rol del personal de enfermería en la atención integral de la persona en estado crítico, así como la familia; y 4 artículos que describen la relación entre la familia y el cuidado de la persona en la UCI, sus desafíos y oportunidades. Conclusiones: el cuidado humanizado en las áreas críticas mejora la experiencia de la persona enferma y familiares, enfatizando la comunicación efectiva y la empatía. Sin embargo, persisten desafíos como sobrecarga emocional del personal y las barreras comunicacionales.
Peran Notaris sebagai Pihak Pelapor dalam Pencegahan Tindak Pidana Pencucian Uang
Authors: Alifa Alifa , Djaja Benny , Sudirman Maman
Published: December 2024

Notaris sebagai pejabat publik memiliki kewajiban untuk menjaga kerahasiaan kliennya, yang sering kali dimanfaatkan oleh pelaku pencucian uang untuk menyembunyikan asal-usul dana ilegal. Namun, beberapa regulasi seperti UU Pencegahan dan Pemberantasan Tindak Pidana Pencucian Uang, PP Nomor 43 Tahun 2015, Permenkumham Nomor 9 Tahun 2017, dan Peraturan PPATK Nomor 3 Tahun 2021 mewajibkan Notaris untuk melaporkan transaksi keuangan yang mencurigakan kepada PPATK. Penelitian ini bertujuan untuk menganalisis peran Notaris dalam pencegahan tindak pidana pencucian uang sebagai pelapor, serta mengidentifikasi potensi konflik hukum terkait kewajiban pelaporan dan prinsip kerahasiaan profesinya. Pendekatan yang digunakan adalah yuridis normatif dengan analisis deskriptif terhadap peraturan yang relevan. Hasil penelitian menunjukkan bahwa peran Notaris sebagai pelapor perlu diperjelas untuk mendukung penegakan hukum tanpa melanggar asas kerahasiaan jabatan. Penelitian ini juga mengungkapkan bahwa perlu ada penguatan peran Notaris melalui peraturan yang lebih jelas untuk memastikan kepatuhan terhadap kewajiban pelaporan tanpa mengabaikan prinsip kerahasiaan. Beberapa tantangan yang dihadapi meliputi potensi konflik antara kewajiban melaporkan dan perlindungan atas rahasia klien. Kesimpulannya, pengaturan hukum yang jelas mengenai kewajiban pelaporan oleh Notaris dapat mengurangi potensi penyalahgunaan profesi dalam tindak pidana pencucian uang. Implikasi dari penelitian ini adalah perlunya peningkatan pemahaman dan pelatihan bagi Notaris dalam menjalankan perannya sebagai pelapor untuk mendukung upaya pencegahan kejahatan keuangan di Indonesia.
İMPARATORLUK MİRASINDAN CUMHURİYETE TÜRKİYE’DE KÜLTÜREL HEGEMONYA VE TÜRK MİLLİYETÇİLİĞİ
Authors: Bakıcı Alper
Published: December 2024

Bu çalışmada kültürel hegemonya kavramı merkeze alınarak, Osmanlı İmparatorluğu’nun son döneminde ve Erken Cumhuriyet döneminde yaşanan politik ve siyasi gelişmelerin, kültürel gelişmelere ne şekilde etki ettiği ve Türk milliyetçiği fikir sisteminin bu gelişmelerden ne şekilde etkilendiğine dair bir irdelemede bulunulmaya çalışılmıştır. Çalışmanın anlaşılabilirliği açısından Türk milliyetçiliğini doğuran faktörler, fikir ve siyaset insanlarının düşünceleri ve kültüre olan bakış açılarına değinilmiştir. Türk milliyetçiliğinin, dünden bugüne Türkiye’nin kültürel, siyasi ve toplumsal yapısına ne şekilde katkı sağladığı ve özelde Milliyetçi Hareket Partisi’nin kurumsal kimliğinin günümüzde Lider Ülke Türkiye ve Türkiye Yüzyılı söyleminin düşünsel ve kültürel alt yapısına ne şekilde katkı sağlayabileceği üzerine bir çıkarımda bulunulmaya çalışılmıştır. Milliyetçi muhafazakâr düşüncenin, imparatorluk mirasından, günümüze kültürel hegemonya tarafından bir olumsuzlanma ve manipülasyona maruz bırakılmak istendiği, hegemonyanın genel olarak eski gücünü kaybettiği, özelde Milliyetçi Hareket Partisi’nin 2016-2023 yılları arasında Türk milliyetçiliği fikrini hâkim düşünce haline getirmek konusunda politikalar ürettiği ve Türkiye Yüzyılı söyleminin düşünsel ve kültürel alt yapısına katkı sağladığı sonucuna ulaşılmıştır.