Abdul Hannan

29 of the 50 police stations in the capital are back into service

I am a huge fan of the Razer Viper Mini, and here's why a wireless version of that mouse might just be a game-changer within the space.

Razer's revolutionary Snap Tap feature for the Huntsman series keyboards eliminates movement overlap and boosts gaming precision.

I have had the pleasure of testing the HyperX Alloy Origins 65, and it is a great keyboard with a premium build and beautiful looks.

Commuters in Dhaka's Shahbagh area faced severe traffic disruption yesterday as hundreds of job seekers blocked the intersection for around eight hours, demanding an increase in the age limit for government job applications from 30 to 35.

Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan

Cement-based composites (CBCs) are essential in the construction sector due to their cost-effectiveness, availability, and versatility, but they struggle with low tensile strength and poor heat resistance. Recent advancements have highlighted the potential of nanomaterials, particularly graphene oxide (GO), in enhancing the mechanical, thermal, and electrical properties of CBCs. This study aims to provide a comprehensive review of the incorporation of GO into cementitious composites, examining its impact on microstructure, mechanical properties, rheology, and durability; thus, a bibliometric review and scientometric analysis were conducted to thoroughly evaluate the existing literature. A total of 263 studies were selected for thorough study. It can be concluded that GO content acts as a pore filler, decreasing porosity by 23% and average pore size by 22%, while boosting compressive strength by up to 15% at a 0.05% concentration. It also enhances workability, stability, and resistance to chloride ingress, sulfate attack, alkali–silica reaction, and carbonation. Incorporating GO reduces cement consumption and carbon footprint, leading to more durable structures and supporting sustainable construction by efficiently utilizing waste materials. The optimal GO concentration for these benefits ranges from 0.03% to 0.1% by weight of cement, as higher concentrations may cause agglomeration. GO-modified cementitious materials are well suited for high-performance and durable applications, particularly in environments with chemical and mechanical stresses.

The Obsbot Meet 2 delivers impressive 4K video quality in a compact design with AI-driven features, making it ideal for remote meetings.

I've tested the GuliKit KK3 Max Controller, and its Hall Effect joysticks, rear paddles, and customizable triggers make it a solid choice.

Bridges are generally acknowledged as one of the vital structures of transportation systems. Meanwhile, they are prone to time-variant damage and deterioration mechanisms over their life span. With that in mind, this research study aims to explore state-of-the-art work in relation to deterioration models and related critical factors of reinforced concrete bridges. Particularly, this study presents a mixed review methodology (scientometric and systematic) that reviews over 300 publications in Scopus and Web of Science databases over the period 1985–2023. The study scrutinized and categorized the wide spectrum of deterioration factors in reinforced concrete bridges with the help of deterioration models. Results manifested that implicating deterioration factors can be grouped into seven main clusters, namely chemical, material properties, design & construction, physical, operational, environmental, and force majeure. In addition, it is noted that hitherto, there has been a lack of sufficient research efforts on non-destructive evaluation-based deterioration models.