Istanbul Technical University
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Monitoring of Moisture and Temperature Regime on Agricultural Land Parcels Using Landsat-8 Remote Sensing Data in the Mardin Province, Türkiye
No full texthttps://doi.org/10.1007/s12524-024-02114-
Evaluation of Lattice Material Suitability for Additive Manufactured Gears under Compression Loads
No full texthttps://doi.org/10.1007/s12666-024-03529-
Impact of Transformer Configuration on Cost, Efficiency, and Space Utilization: A Case Study
No full texthttps://doi.org/10.1109/gpecom65896.2025.1106191
Landmark-Based Fast LIP Reading with CTC Loss
No full texthttps://doi.org/10.1109/ipta66025.2025.1122207
Study of the time and energy resolution of an ultracompact sampling calorimeter (RADiCAL) module at EM shower maximum over the energy range 25 ≤ E ≤ 150 GeV using scintillation and wavelength shifting technology
No full textThe RADiCAL Collaboration is conducting R&D on precision-timing electromagnetic (EM) calorimetry to address the challenges expected in future collider experiments under conditions of high luminosity and/or high irradiation such as those expected at the FCC-ee and FCC-hh colliding beam facilities. Under development are sampling calorimeter structures known as RADiCAL modules, based on scintillation and wavelength-shifting (WLS) technologies, and read out by SiPM photosensors. The module in the test described here consists of alternating layers of very dense tungsten (W) absorber and scintillating crystal (LYSO:Ce) plates, assembled to a depth of 25 radiation lengths (X0). The scintillation signals produced by the EM showers in the region of EM shower maximum (shower max) are transmitted to SiPM located at the upstream and downstream ends of the module via quartz capillaries which penetrate the full length of the module and which contain either organic DSB1 WLS filaments or ceramic LuAG:Ce WLS filaments positioned within the region of shower max, where the shower energy deposition is greatest. The remaining volume within the capillaries, upstream and downstream of the WLS filaments, is filled and fused with quartz rod to form solid quartz waveguides. Preliminary results are presented of the timing resolution of the RADiCAL module over the energy range 25 GeV ≤ E ≤ 150 GeV using both types of wavelength shifters. The studies were conducted using electron beam in the H2 beamline at CERN, Geneva, Switzerland.https://doi.org/10.1051/epjconf/202532000060https://doaj.org/article/2e7b1ed7d3af4b3bb2ec9dd22ca377c
Hybrid Pooling As A Balanced Approach to Reduce False Positives in CNNs
No full texthttps://doi.org/10.1109/siu66497.2025.1111190
Türkiye’nin Karbonsuzlaşma Politikaları Kapsamında Düzce İli Katı Atık Yönetiminin Yaşam Döngüsü Değerlendirmesi
No full textBu çalışma, Türkiye'nin 2053 yılı karbonsuzlaşma hedefi doğrultusunda Düzce'deki katı atık yönetiminin çevresel etkilerini değerlendirmektedir. Çalışmada, yaşam döngüsü değerlendirmesi yöntemi kullanılarak farklı elektrik karışımlarının etkileri karşılaştırılmıştır. Düzce’deki yıllık atık üretimi fonksiyonel birim olarak belirlenmiş ve ReCiPe-2016 metodu kullanılarak sekiz etki kategorisi ile yedi farklı senaryo analiz edilmiştir. Arka plan verileri, literatür kaynakları ve ecoinvent 3.7.1 veri tabanı kullanılarak oluşturulmuştur. Ayrıca, düzenli depolama tesisindeki (DDT) gaz toplama oranlarının değişimleri hassasiyet (duyarlılık) analizi yöntemiyle incelenmiştir. Sonuçlar, Türkiye'nin 2053 yılına yönelik karbonsuzlaşma hedeflerini gerçekleştirmesine rağmen, DDT’ye sıfır atık gönderme hedefine ulaşamamasının ilave çevresel yükler oluşturabileceğini göstermektedir. Özellikle geri dönüşüm oranlarının düşüklüğü, enerji geri kazanımının sınırlı olması ve biyolojik olarak parçalanabilir atıkların DDT’de uzun vadeli çevresel riskler yaratması öne çıkan bulgular arasındadır. Geri dönüşümle hammadde ikamesi, tüm senaryolarda çevresel kazanç sağlamaktadır ve özellikle son yıllarda gündeme gelen depozito sisteminin hızla uygulanması gerektiği vurgulamaktadır. Karbonsuzlaşma politikasıyla uyum için, döngüsel ekonomi modelinin atık yönetiminde benimsenmesi kritiktir. Kamu-özel sektör iş birliğinin güçlendirilmesi ve lojistik süreçlerin optimizasyonu önemli stratejik adımlar arasında yer almaktadır. Ayrıca, ileride atık yönetiminde maliyet analizlerinin yapılması, karar vericilerin etkili politika önerileri geliştirmesine katkı sağlayacaktır.https://doi.org/10.21324/dacd.162051
Seismic Performance Enhancement of a School Building with Lead Extrusion Dampers in Toggle-Brace Configuration
No full texthttps://doi.org/10.2139/ssrn.521702
Novel Calibration Strategy for Kalman Filter‐Based Measurement Fusion Operation to Enhance Aging Monitoring
No full textABSTRACTThis study introduces a novel calibration strategy for the linear Kalman filter (LKF) fusion application in condition monitoring, specifically utilizing accelerated aging data. Unlike the existing literature that often focuses on complex nonlinear Kalman filter variants, this research delves into the calibration of LKF. By using experimental data comprising current and vibration signals that represent various aging stages of an induction motor (IM), the study evaluates LKF's feature combination capabilities. The accelerated aging data provide a solid foundation for analyzing degradation patterns and reliability. Emphasis is placed on the importance of measurement normalization and the configuration of the observation matrix to achieve an optimally representative fused signal reflecting the IM's condition. The parameters are fine‐tuned based on the spectral properties of the measured signals, ensuring filter stability. Ultimately, the study demonstrates that a well‐calibrated LKF accurately captures the essential features in the measured signals, successfully integrating indications of aging and manufacturing imperfections from both current and vibration signals. These findings offer valuable insights into the application of LKF in degradation‐based reliability analysis, particularly in condition monitoring, remaining useful life (RUL) prediction, and preventive maintenance. This research contributes to the emerging topics in modern degradation‐based reliability analysis by providing a practical application of LKF in accelerated degradation tests, degradation modeling, and maintenance optimization based on degradation data.https://doi.org/10.1002/qre.378
CHITOSAN/ZINC-IRON OXIDE NANOCOMPOSITE FOR CONTROLLED RELEASE OF ANTICANCER DRUG IMATINIB
No full textCancer drug carriers at the nanoparticle level have gained significant importance in recent years due to their ability to enhance the delivery of active substances to cancer tissues, thereby improving efficacy and reducing negative side effects associated with traditional chemotherapy. In this study, chitosan nanoparticles were synthesized and coated with zinc-iron oxide nanoparticles. This approach offers the advantage of targeted drug delivery to tumors. Imatinib, an anticancer drug, was loaded into both chitosan nanoparticles and chitosan/zinc-iron oxide nanoparticles. The addition of zinc-iron oxide nanoparticles significantly increased the encapsulation efficiency of the chitosan-based nanoparticles from 36% to 77.8%. The chitosan/zinc-iron oxide nanoparticle system was selected as the drug delivery system and characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy, and X-ray diffraction techniques. In-vitro release studies demonstrated sustained release of imatinib. These findings suggest that the chitosan/zinc-iron oxide nanoparticles hold promise as an effective drug delivery system for cancer therapy.https://doi.org/10.35812/cellulosechemtechnol.2025.59.0