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  • Authors: Li, B.;  Advisor: -;  Participants: Cheng, L.; Zhu, R.; Hu, T.; Anjum, A.; He, Z.; Zou, Y. (2019)

  • Automatic and intelligent railway locomotive inspection and maintenance are fundamental issues in high-speed rail applications and intelligent transportation system (ITS). Traditional locomotive equipment inspection is carried out manually on-site by workers, and the task is exhausting, cumbersome, and unsafe. Based on computer vision and machine learning, this paper presents an approach to the automatic detection of the locomotive speed sensor equipment, an important device in locomotives. Challenges to the detection of speed sensor mainly concerns complex background, motion blur, muddy noise, and variable shapes. In this paper, a cascade learning framework is proposed, which include...

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  • Authors: Karl, Holger;  Advisor: -;  Participants: Kundisch, Dennis; Heide, Friedhelm Meyer auf der; Wehrheim, Heike (2019)

  • The complexity of development and deployment in today’s IT world is enormous. Despite the existence of so many pre-fabricated components, frameworks, cloud providers, etc., building IT systems still remains a major challenge and most likely overtaxes even a single ambitious developer. This results in spreading such development and deployment tasks over different team members with their own specialization. Nevertheless, not even highly competent IT personnel can easily succeed in developing and deploying a nontrivial application that comprises a multitude of different components running on different platforms (from frontend to backend). Current industry trends such as DevOps strive...

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  • Authors: Lievens, C.;  Advisor: -;  Participants: - (2018)

  • This study’s GC/MS analysis of solvent extraction of the biochars showed potential toxicity due to the leaching of light organic compounds when biochars are added to soils. Furthermore, this study also showed the influence of pH on the leaching of large aromatic organics from the biochars. Apart from the pH of leaching solution, the influence of the biomass feedstock on the leaching kinetics of large aromatic organics from biochars was demonstrated. These leached aromatic organics were characterised by UV-fluorescence spectroscopy.

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  • Authors: Beven, K.;  Advisor: -;  Participants: - (2018)

  • This review provides a historical summary of the development of knowledge on preferential and non‐equilibrium flows in soils, particularly in the period 1864 to 1984. It is pointed out that preferential flows were recognized long before the equilibrium concepts of Edgar Buckingham and Lorenzo A. Richards were developed and became the dominant underpinnings of soil physics in the 20th century, effectively in denial of all the evidence that the Buckingham–Richards theory was inadequate to deal with water flows in field soils. Summaries of evidence from soil microscopy, tracing and breakthrough curve experiments, infiltration and throughflow observations, and studies of natural pipes are...

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  • Authors: Aguilar, R.;  Advisor: -;  Participants: - (2018)

  • In this study, we evaluate the use of a cloud-based multi-temporal ensemble classifier to map smallholder farming systems in a case study for southern Mali. The ensemble combines a selection of spatial and spectral features derived from multi-spectral Worldview-2 images, field data, and five machine learning classifiers to produce a map of the most prevalent crops in our study area. Different ensemble sizes were evaluated using two combination rules, namely majority voting and weighted majority voting. Both strategies outperform any of the tested single classifiers. The ensemble based on the weighted majority voting strategy obtained the higher overall accuracy (75.9%).

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  • Authors: Morales, J.;  Advisor: -;  Participants: Flacke, J.; Martinez, J. (2018)

  • Our research aim was to investigate how potential sites for municipal housing projects could be evaluated using a collaborative planning framework. In particular, the case of Guatemala City and its MEHUD housing projects were studied. Within this research context, there were three specific research objectives: (1) to identify a process and methodology for supporting the collaborative planning of municipal housing projects; (2) to explore the perspectives for participation of potential stakeholders in housing development and collaborative planning; and (3) to implement the collaborative planning framework developed by identifying and assessin...

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  • Authors: Ma, Z.;  Advisor: -;  Participants: Ge, H.; Liu, Y.; Zhao, M.; Ma, J. (2019)

  • Android malware severely threaten system and user security in terms of privilege escalation, remote control, tariff theft, and privacy leakage. Therefore, it is of great importance and necessity to detect Android malware. In this paper, we present a combination method for Android malware detection based on the machine learning algorithm. First, we construct the control ow graph of the application to obtain API information. Based on the API information, we innovatively construct Boolean, frequency, and time-series data sets. Based on these three data sets, three detection models for Android malware detection regarding API calls, API frequency, and API sequence aspects are constructed....

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  • Authors: Ugbe, Fabian Audu;  Advisor: -;  Participants: Shallangwa, Gideon Adamu; Uzairu, Adamu; Abdulkadir, Ibrahim (2022)

  • Theoretical modeling of thirty-six arylimidamide-azole derivatives was conducted to establish a quantitative relationship between their structures and their inhibitory activities. As a result, a five-descriptor QSAR model was built (Eq. 13) with the descriptors well described in Table 4. The outcome of the internal and external validation assessment conducted on the built model is available in Table 5. The computed descriptors, observed activities (pIC50), and the predicted activities together with their residuals are presented in Table 6. Also, a plot of predicted activities versus experimental activities for the training set and test set is shown in Fig. 1, while Fig. 2 shows the pl...

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  • Authors: Omar, Nada;  Advisor: -;  Participants: Ismail, Amira Galal; Galal, Manar; Zaazou, Mohamed H.; Mohamed, Mohamed Abdullah (2019)

  • Finite element analysis was used to evaluate the stress distribution, estimate the residual stresses, bending, and amount of displacement of two nickel-titanium instruments manufactured by the same M-wire technology but with different cross-section. The WaveOne file showed higher torsional stresses accumulation than those accumulated in the ProTaper NEXT. While the ProTaper NEXT showed more bending and file displacement than those showed by WaveOne file.

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  • Authors: Ibrahim, Mostafa Mahmoud;  Advisor: -;  Participants: Khedr, Mohamed Mostafa; Morsy, Manal Hamza; Badae, Noha Mohamed; Elatrebi, Soha (2022)

  • Acute myocardial infraction (AMI) is a leading cause of morbidity. As anti-diabetic drugs affect the cardiovascular risk of diabetic patients independent of their glucose lowering effect, this study was aimed to explore the cardioprotective effects of metformin, sitagliptin and dapagliflozin on electrocardiogram (ECG) changes, IL-1β, troponin I, caspase 3 in isoprenaline (ISO) induced MI in non-diabetic rats. The present study was conducted on 40 adult male Wistar albino rats. The rats were randomly assigned into 5 groups, 8 each: I-Normal Control (NC) group, II-ISO-induced MI control (ISO-MI) injected with ISO subcutaneously at a dose of 100 mg/kg to induce experimental AMI. III-A- M...

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  • Authors: Pratomo, R.A.;  Advisor: -;  Participants: - (2017)

  • Grenada is one of the susceptible areas to flooding. It is due to the high intensity of rainfall in each year and Grenada often hit by hurricanes and tropical storms. Flash-flood often occur in Grenada, specifically in two areas (Gouyave and St. John's watershed). Both of them have different characteristics. Gouyave watershed represents rural area, whereas St. John's watershed is an urban area. This paper aims to understand the flash-flood response of Gouyave and St. John' s watershed in different return periods. It is emphasized that urbanization is an important factor related to flash-flood. This paper uses quantitative methods with flood modelling using OpenLISEM software. Input da...

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  • Authors: Algeo, J.;  Advisor: -;  Participants: Slater, L.; Binley, A.; Van Dam, R.L.; Watts, C. (2018)

  • In this study we performed controlled irrigation experiments using a multifrequency GPR system to compare two statistics used to quantify the ETS: average envelope amplitude (AEA) and carrier frequency amplitude (CFA). Supporting data were provided by direct measurements, electrical resistivity imaging (ERI), and synthetic modeling. In our first experiment, both statistics successfully related the ETS for 250 and 400 MHz GPR data to increasing water content. However, the 400 MHz AEA lost sensitivity at later stages of the irrigation process, whereas the 400 MHz CFA remained sensitive to changes in water content. The 1000 MHz data did not show the expected relationships, possibly due t...

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  • Authors: Csillik, O.;  Advisor: -;  Participants: - (2016)

  • In computer vision, using superpixels or perceptually meaningful atomic regions to speed up later-stage processing are becoming increasingly popular in many applications. Superpixels are used as a pre-processing stage to organize an image into a low-level grouping process through oversegmentation, thus simplifying the computation in later stages. However, in remote sensing domain few studies use superpixels. Even so, there is no comparison between superpixel methods and their suitability for remote sensing images. In this study, we compare four state-of-the-art superpixel methods: Simple Linear Iterative Clustering (SLIC and SLICO), Superpixels Extracted via Energy-Driven Sampling (SE...

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  • Authors: Abdelwahab, Siddig Ibrahim;  Advisor: -;  Participants: Mohamed , Manal Mohamed Elhassan Taha (2022)

  • Catha edulis is a perennial herbaceous plant of the Celastraceae family. It is referred to locally by various names, including Khat, Qat, and Gat in Yemen, Qaat and Jaad in Somalia; and Chat in Ethiopia (Al Moaleem et al. 2017; Alhazmi et al. 2020; Taha et al. 2014). For eight centuries, the inhabitants of East Africa and the Arabian Peninsula have chewed Khat (C. edulis). This plant's natural habitat is Ethiopia’s Hararghe Zone. Countries like Uganda, Ethiopia, Kenya, Yemen, and Djibouti where it is widely used have legalized its cultivation, sale, and chewing. Over 20 million abusers are thought to exist today, including both male and female adults, as well as college and middle sch...

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  • Authors: Khan, Auroni Semonti;  Advisor: -;  Participants: Parvez, Nahid; Ahsan, Tamim; Shoily, Sabrina Samad; Sajib, Abu Ashfaqur (2022)

  • A total of 153 missense variants of pirin were identified (Additional file 1: Table S1). The pathogenicity of these variants was predicted using five different tools (SIFT, PolyPhen2, PMut, Meta-SNP and Rhapsody). Each tool follows a different algorithm to predict pathogenicity. SIFT uses sequence homology-based approach for classifying a missense variant as either deleterious or tolerated (Sim et al. 2012). PolyPhen-2 classifies an amino acid substitution into probably damaging, possibly damaging, and benign on the basis of sequence, phylogenetic and structural characteristics of the substitution(Adzhubei et al. 2010, 2013). PMut uses neural networks to predict structure and evolutio...

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  • Authors: Napoli, Agnese Di;  Advisor: -;  Participants: Zucchetti, Pietro (2021)

  • We searched for the main medicinal properties of Taraxacum officinale in the scientific literature, using the PubMed database. We selected 54 studies and we described twelve therapeutic properties, which are reported in previous studies. These properties are diuretic, hepatoprotective, anticolitis, immunoprotective, antiviral, antifungal, antibacterial, antiarthritic, antidiabetic, antiobesity, antioxidant and anticancer effects. We also found that the most frequently reported therapeutic effects include hepatoprotective, antioxidant and anticancer activities.

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  • Authors: Nguyen, Viet Duc;  Advisor: -;  Participants: - (2021)

  • This paper presents a computing module for a quick determination of flexural strength of fibre-reinforced concrete, plain concrete and hybrid cement composite. The hybrid cement composite consists of two layers of plain concrete and steel fibre-reinforced concrete. Both of these concretes are self-compacting ones. Flexural strength could be defined quickly by a series of codes, which was written in Matlab language. The verification was done by comparing the experimental test results and the one from the code. On the same basis, the deviation between the code and the experiment was less than 5%. This outcome proved the efficiency of the code developed for the study.