Yıldız Technical University

Recent Advances and Open Challenges in Mitigating Inference-Time Attacks on Large Language Models

The rapid integration of Large Language Models into high-stakes domains has elevated inference-time attacks into a primary security concern for production deployments. These attacks are adversarial techniques that exploit models exclusively through their input–output interface. T...

Effects of Cold Fermentation and Cold Storage on Type I Sourdough and Bread Properties

The aim of this study is to provide an alternative bakery practice by evaluating the effects of cold fermentation (backslopping at 7 and 15 °C) and cold storage (stored at 7 and 15 °C) after backslopping on Type I sourdough characteristics and the technological performance of the...

Frequency-Based State-Feedback Controller Design for 3-DOF Tower Cranes Under Aerodynamic Disturbances

This study presents a novel state-feedback controller for a three-degree-of-freedom (3-DOF) tower crane system, optimized via frequency-domain cost function minimization. Tower cranes are complex, underactuated systems highly susceptible to external perturbations, particularly ae...

Integrating Experimental Measurements, WinXCom Calculations and Monte Carlo Simulations to Evaluate the Ionizing Radiation Shielding Performance of UPR/Bi2WO6 Nanocomposites

Lead-free polymer nanocomposites have attracted considerable attention as sustainable alternatives for ionizing radiation shielding. In this study, unsaturated polyester resin (UPR) nanocomposites containing hydrothermally synthesized Bi2WO6 nanoparticles (2.5–10 wt.%) were fabri...

Eksenel Yüklü Kazıkların Sayısal Analiz ve Bileşik Yöntem Entegrasyonu ile Geoteknik Tasarımı

Kazıklar, oturmaları azaltmak üzere inşa edilen temel elemanları olsa da geleneksel geoteknik tasarım, taşıma gücü analizine göre yapılmakta ve oturmalar ayrı bir hesaplama yaklaşımıyla kontrol edilmektedir. Böylesi bir kazık tasarımında “taşıma gücü” çoğu zaman, şaft sürtünmesi...

Stability-Indicating RP-HPLC Determination of Acetylsalicylic Acid, Dextromethorphan Hydrobromide, Phenylephrine Bitartrate, and Chlorpheniramine Maleate in an Effervescent Tablet Formulation

BACKGROUND: Multi-component effervescent tablets containing acetylsalicylic acid (ASA), dextromethorphan hydrobromide (DMH), phenylephrine bitartrate (PB), and chlorpheniramine maleate (CPM) pose analytical challenges due to their complex excipient composition and moisture sensit...

Impact of synbiotic formulation on lactic acid bacteria viability and quality attributes of yogurt during cold storage

Abstract This study evaluated the impact of synbiotic formulation on lactic acid bacteria (LAB) viability and quality attributes of yogurt during cold storage. Yogurt was manufactured with traditional starter cultures ( Lactobacillus delbrueckii subsp. bulgaricus and Streptococcu...

Advanced functional biochar-based hybrid nanocomposites for electrochemical sensing platforms in environmental monitoring

Biochar (BC), a stable, carbon-rich material produced by heating biomass, is increasingly used in electrochemical sensing, particularly in hybrid nanocomposite forms, because hybridization can improve electrical conductivity, catalytic activity, surface area, and interfacial char...

A numerical study comparing hydrodynamic performance of circular and square cross-sectional wetted venturi scrubbers

Abstract The contaminants are cleared from the gas before they are released into the environment by venturi scrubbers that are easy to use and effective gas cleaning equipment. Venturi scrubbers use liquids to remove contaminants from the gaseous medium. In the present study, sin...

Hierarchical linear modeling of reading motivation and literacy performance among high-achieving readers in PISA 2018

This study used hierarchical linear modeling to examine the extent to which student-level enjoyment of reading and reading self-efficacy, together with country-level aggregates of student-reported instructional experiences, accounted for variation in reading literacy scores among...

Sequence-Controlled Synthesis of Heteroaryl-Substituted Decahydroacridine-1,8-diones: Comparative Evaluation of Preformed Enaminone and Multicomponent Routes

Six 9-thienyl-10-aryl-substituted 3,3,6,6-tetramethyl-decahydroacridine-1,8-diones (5a–f) were prepared by two acid-mediated routes that used the same solvent, temperature, and reaction time. In the sequential route, preformed 5,5-dimethyl-3-(arylamino)cyclohex-2-enones were reac...