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Artykuły w czasopismach na temat „Data replacement attack”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Ganesh, Dagadu Puri, and Haritha D. "Framework to Avoid Similarity Attack in Big Streaming Data." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 5 (2018): 2920–25. https://doi.org/10.11591/ijece.v8i5.pp2920-2925.

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The existing methods for privacy preservation are available in variety of fields like social media, stock market, sentiment analysis, electronic health applications. The electronic health dynamic stream data is available in large quantity. Such large volume stream data is processed using delay free anonymization framework. Scalable privacy preserving techniques are required to satisfy the needs of processing large dynamic stream data. In this paper privacy preserving technique which can avoid similarity attack in big streaming data is proposed in distributed environment. It can process the dat

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Gu, Rui, Jian Wang, Benpeng Li, Di Qi, Xiaohu Gao, and Zhiyong Yang. "Experimental Study on Mechanical Properties and Compressive Constitutive Model of Recycled Concrete under Sulfate Attack Considering the Effects of Multiple Factors." Buildings 14, no. 9 (2024): 2761. http://dx.doi.org/10.3390/buildings14092761.

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To investigate the mechanical properties and a compressive constitutive model of recycled concrete under sulfate attack considering the effects of multiple factors, two waste concrete strengths (i.e., C30 and C40), four replacement ratios of recycled coarse aggregates (i.e., 0, 30%, 50% and 100%), and two water–cement ratios (i.e., 0.50 and 0.60) were considered in this study, and a total of 32 recycled concrete specimens were designed and tested. The results indicated that the failure processes and patterns of recycled concrete were not significantly influenced by the replacement ratio of rec

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Sunderi, Pranata, and Tri Nugroho Hargyo. "2FYSH: two-factor authentication you should have for password replacement." TELKOMNIKA Telecommunication, Computing, Electronics and Control 17, no. 2 (2019): 693–702. https://doi.org/10.12928/TELKOMNIKA.v17i2.9187.

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Password has been the most used authentication system these days. However, strong passwords are hard to remember and unique to every account. Unfortunately, even with the strongest passwords, password authentication system can still be breached by some kind of attacks. 2FYSH is two tokens-based authentication protocol designed to replace the password authentication entirely. The two tokens are a mobile phone and an NFC card. By utilizing mobile phones as one of the tokens, 2FYSH is offering third layer of security for users that lock their phone with some kind of security. 2FYSH is secure sinc

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4

Wang, Qi, Lin Qiao, and Peng Song. "Effect of Fly Ash and Slag on the Resistance to H₂S Attack of Oil Well Cement." Advanced Materials Research 79-82 (August 2009): 71–74. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.71.

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In this paper, the resistance to H2S attack of pastes made from slag-fly ash blended cement used in oil well (SFAOW) was studied, in which fly ash (FA) was used at replacement dosages of 30% to 60% by weight of slag. Samples of SCOW and SFAOW pastes were demoulded and cured by immersion in fresh water with 2 Mp H2S insulfflation under 130oC for 15 days. After this curing period, compression strength and permeability of the samples were investigated. The reaction mechanisms of H2S with the paste were carried out through a microstructure study, which included the use of x-ray diffraction (XRD) p

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Xi, Peng, Shaoliang Peng, and Wenjuan Tang. "IBAS:Imperceptible Backdoor Attacks in Split Learning with Limited Information." Proceedings of the AAAI Conference on Artificial Intelligence 39, no. 26 (2025): 27715–22. https://doi.org/10.1609/aaai.v39i26.34986.

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Split learning, as a distributed learning framework, effectively addresses the issue of limited computing resources. However, despite achieving a separation of data and computation, recent studies have pointed out that this framework still faces two major security challenges: privacy leakage and model security. Most current research focuses on the problem of privacy leakage, emphasizing how to prevent malicious servers from recovering or inferring the client's private data. However, the issue of model security in split learning has not received sufficient attention. This paper reveals the vuln

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Wang, Guilin, Hua Shen, Liquan Chen, Jinguang Han, and Ge Wu. "Mobile Sensoring Data Verification via a Pairing-Free Certificateless Signature Secure Approach against Novel Public Key Replacement Attacks." Electronics 12, no. 23 (2023): 4865. http://dx.doi.org/10.3390/electronics12234865.

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To achieve flexible sensing coverage with low deployment costs, mobile users need to contribute their equipment as sensors. Data integrity is one of the most fundamental security requirements and can be verified by digital signature techniques. In the mobile crowdsensing (MCS) environment, most sensors, such as smartphones, are resource-limited. Therefore, many traditional cryptographic algorithms that require complex computations cannot be efficiently implemented on these sensors. In this paper, we study the security of certificateless signatures, in particular, some constructions without pai

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Fu, Xiaopeng, Zhaoquan Gu, Weihong Han, Yaguan Qian, and Bin Wang. "Exploring Security Vulnerabilities of Deep Learning Models by Adversarial Attacks." Wireless Communications and Mobile Computing 2021 (September 27, 2021): 1–9. http://dx.doi.org/10.1155/2021/9969867.

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Nowadays, deep learning models play an important role in a variety of scenarios, such as image classification, natural language processing, and speech recognition. However, deep learning models are shown to be vulnerable; a small change to the original data may affect the output of the model, which may incur severe consequences such as misrecognition and privacy leakage. The intentionally modified data is referred to as adversarial examples. In this paper, we explore the security vulnerabilities of deep learning models designed for textual analysis. Specifically, we propose a visual similar wo

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Puri, Ganesh Dagadu, and D. Haritha. "Framework to Avoid Similarity Attack in Big Streaming Dat." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 5 (2018): 2920. http://dx.doi.org/10.11591/ijece.v8i5.pp2920-2925.

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<span>The existing methods for privacy preservation are available in variety of fields like social media, stock market, sentiment analysis, electronic health applications. The electronic health dynamic stream data is available in large quantity. Such large volume stream data is processed using delay free anonymization framework. Scalable privacy preserving techniques are required to satisfy the needs of processing large dynamic stream data. In this paper privacy preserving technique which can avoid similarity attack in big streaming data is proposed in distributed environment. It can pro

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9

Bagui, Sikha S., Dustin Mink, Subhash C. Bagui, and Sakthivel Subramaniam. "Resampling to Classify Rare Attack Tactics in UWF-ZeekData22." Knowledge 4, no. 1 (2024): 96–119. http://dx.doi.org/10.3390/knowledge4010006.

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One of the major problems in classifying network attack tactics is the imbalanced nature of data. Typical network datasets have an extremely high percentage of normal or benign traffic and machine learners are skewed toward classes with more data; hence, attack data remain incorrectly classified. This paper addresses the class imbalance problem using resampling techniques on a newly created dataset, UWF-ZeekData22. This is the first dataset with tactic labels, labeled as per the MITRE ATT&CK framework. This dataset contains about half benign data and half attack tactic data, but specific t

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10

Prudhvi, E., and Sujatha Reddy. "A Study on Partial Replacement of Cement using Natural Zeolite." Journal of Physics: Conference Series 2779, no. 1 (2024): 012055. http://dx.doi.org/10.1088/1742-6596/2779/1/012055.

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Abstract Because of its superior mechanical and physical qualities, concrete, a composite material, has long been one of the most widely utilized materials in the civil engineering sector. Without a doubt, cement is the component that uses the greatest energy. In addition to being energy-intensive, the manufacture of cement contributes significantly to global CO2 emissions, making up 8% of all greenhouse gas emissions. Concrete’s performance and resilience to harsh environmental stresses are enhanced by the addition of natural zeolite powder to blended cement. Concrete buildings are subject to

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Lapid, Raz, Zvika Haramaty, and Moshe Sipper. "An Evolutionary, Gradient-Free, Query-Efficient, Black-Box Algorithm for Generating Adversarial Instances in Deep Convolutional Neural Networks." Algorithms 15, no. 11 (2022): 407. http://dx.doi.org/10.3390/a15110407.

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Deep neural networks (DNNs) are sensitive to adversarial data in a variety of scenarios, including the black-box scenario, where the attacker is only allowed to query the trained model and receive an output. Existing black-box methods for creating adversarial instances are costly, often using gradient estimation or training a replacement network. This paper introduces Qu ery-Efficient Evolutionary Attack—QuEry Attack—an untargeted, score-based, black-box attack. QuEry Attack is based on a novel objective function that can be used in gradient-free optimization problems. The attack only requires

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12

Zamir Hashmi, Syed Roshan, Muhammad Imran Khan, Shabir Hussain Khahro, Osama Zaid, Muhammad Shahid Siddique, and Nur Izzi Md Yusoff. "Prediction of Strength Properties of Concrete Containing Waste Marble Aggregate and Stone Dust—Modeling and Optimization Using RSM." Materials 15, no. 22 (2022): 8024. http://dx.doi.org/10.3390/ma15228024.

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Carbon footprint reduction, recompense depletion of natural resources, as well as waste recycling are nowadays focused research directions to achieve sustainability without compromising the concrete strength parameters. Therefore, the purpose of the present study is to utilize different dosages of marble waste aggregates (MWA) and stone dust (SD) as a replacement for coarse and fine aggregate, respectively. The MWA with 10 to 30% coarse aggregate replacement and SD with 40 to 50% fine aggregate replacement were used to evaluate the physical properties (workability and absorption), durability (

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13

Overo Kenneth Ejukonemu and Joshua Odudu. "Data analysis and model development for sulphate attack strength loss index in Chikoko blended concrete." World Journal of Advanced Engineering Technology and Sciences 13, no. 2 (2024): 482–95. https://doi.org/10.30574/wjaets.2024.13.2.0614.

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Sulphate attack poses a significant durability challenge for concrete, particularly in environments with high sulphate concentrations. This study explores the efficacy of Chikoko, a natural pozzolan from the Niger Delta region, as a supplementary cementitious material to enhance concrete's sulphate resistance. The objective is to develop a predictive model for the strength loss index (SLI) of Chikoko-blended concrete exposed to sulphate attack. Concrete samples incorporating various Chikoko contents (0%, 5%, 10%, 15%, 20%) were immersed in a 5% sodium sulphate solution for durations of 7, 21,

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14

Wei, Chong Beng, Rokiah Othman, Tan Wei Sheng, Ramadhansyah Putra Jaya, and Mohd Mustafa Al Bakri Abdullah. "Properties of Mortar with Waste Tyre Rubber as Partial Sand Replacement." Key Engineering Materials 879 (March 2021): 49–61. http://dx.doi.org/10.4028/www.scientific.net/kem.879.49.

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Around 1000 million waste tyres are generated annually and over 5000 million more are estimated to be discarded by 2030. It is estimated that one waste tyre is discarded per person in developed areas, hence 1 billion waste tyres are disposed worldwide. Waste tyre is difficult to manage as it takes up space, is difficult to compress and combustion of tyre releases highly toxic substance into the air. Hence, most of them end up in the landfill, as past research data estimated that currently 4 billion waste tyres can be found in landfills. In this study, up to 30% tyre rubber with a fine grind si

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15

Long, Min, Fei Peng, and Xiaoqing Gong. "A Format-Compliant Encryption for Secure HEVC Video Sharing in Multimedia Social Network." International Journal of Digital Crime and Forensics 10, no. 2 (2018): 23–39. http://dx.doi.org/10.4018/ijdcf.2018040102.

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Aiming at secure video sharing in multimedia social network, a format-compliant encryption scheme for high efficiency video coding (HEVC) based on sigh data hiding (SDH) is proposed. The encryption is tightly integrated with the encoding/decoding processes. For each coding unit (CU), the sign of the nonzero coefficient and the first hiding nonzero coefficient are both encrypted with key stream. Meanwhile, one of merging index, motion vector prediction index, sign of motion vector difference and reference frame index is chosen for encryption according to a control factor. As it is explored in t

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16

Kuo, Chung-Wei, Wei Wei, Chun-Chang Lin, Yu-Yi Hong, Jia-Ruei Liu, and Kuo-Yu Tsai. "Dynamic Key Replacement Mechanism for Lightweight Internet of Things Microcontrollers to Resist Side-Channel Attacks." Future Internet 17, no. 1 (2025): 43. https://doi.org/10.3390/fi17010043.

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5G technology and IoT devices are improving efficiency and quality of life across many sectors. IoT devices are often used in open environments where they handle sensitive data. This makes them vulnerable to side-channel attacks (SCAs), where attackers can intercept and analyze the electromagnetic signals emitted by microcontroller units (MCUs) to expose encryption keys and compromise sensitive data. To address this critical vulnerability, this study proposes a novel dynamic key replacement mechanism specifically designed for lightweight IoT microcontrollers. The mechanism integrates Moving Ta

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17

SOUZA, D. J. DE, M. H. F. MEDEIROS, and J. HOPPE FILHO. "Evaluation of external sulfate attack (Na2SO4 and MgSO4): Portland cement mortars containing fillers." Revista IBRACON de Estruturas e Materiais 13, no. 3 (2020): 644–55. http://dx.doi.org/10.1590/s1983-41952020000300013.

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Abstract Sulfate attack is a term used to describe a series of chemical reactions between sulfate ions and hydrated compounds of the hardened cement paste. The present study aims to evaluate the physical (linear expansion, flexural and compressive strength) and mineralogical properties (X-ray diffraction) of three different mortar compositions (Portland Cement CPV-ARI with limestone filler and, with a quartz filler, in both cases with 10% replacement of the cement by weight) against sodium and magnesium sulfate attack (concentration of SO4 2- equal to 0.7 molar). The data collected indicate th

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V.Rambabu, P., and G. V.RamaRao. "Rice Husk Ash as an Admixture of M30 grade Concrete Exposed to Sulfate Environment." International Journal of Engineering & Technology 7, no. 3.31 (2018): 6. http://dx.doi.org/10.14419/ijet.v7i3.31.18189.

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In the present critique, Rice Husk Ash (RHA) partly replaced with cement in the quotient of 0%, 5%, 10%, 15%, and 20% to fruitage M30 grade Concrete. Concrete cubes divulged to Magnesium Sulfate and Sodium sulfate concentrations of 1%, 3% and 5% for the perpetuation of 28, 60and 90 days. The Experimental data demonstrate that RHA improved the counteraction to sulfate attack on concrete and can be used as an Admixture, 10% as most favorable replacement quotient of RHA in cement.

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Calkin, David E., Crystal S. Stonesifer, Matthew P. Thompson, and Charles W. McHugh. "Large airtanker use and outcomes in suppressing wildland fires in the United States." International Journal of Wildland Fire 23, no. 2 (2014): 259. http://dx.doi.org/10.1071/wf13031.

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Wildfire activity in the United States incurs substantial costs and losses, and presents challenges to federal, state, tribal and local agencies that have responsibility for wildfire management. Beyond the potential socioeconomic and ecological losses, and the monetary costs to taxpayers due to suppression, wildfire management is a dangerous occupation. Aviation resources, in particular large airtankers, currently play a critical role in wildfire management, and account for a relatively large share of both suppression expenditure and firefighting fatalities. A recent airtanker modernisation st

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Ozer, L., and A. Thylstrup. "What is Known About Caries in Relation to Restorations as a Reason for Replacement? a Review." Advances in Dental Research 9, no. 4 (1995): 394–402. http://dx.doi.org/10.1177/08959374950090040901.

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In the past 20 years, a great many studies have identified secondary caries to be the most common reason for the replacement of restorations. This review raises the question whether clinicians use 'secondary caries' as a catch-all into which they put a variety of reasons for replacement, or whether they do have professionally based reasons for focusing on caries adjacent to restorations. There is no consensus among researchers concerning the nature of secondary caries, but it is possible to identify two major-and conflicting-trends : One adheres to a critical approach concerning the frequency

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Yuan, Beibei, Hui Huang, and Chenhuang Wu. "A New Conditional Privacy-Preserving Certificateless Aggregate Signature Scheme in the Standard Model for VANETs." Mathematics 11, no. 23 (2023): 4766. http://dx.doi.org/10.3390/math11234766.

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Vehicular Ad Hoc Networks (VANETs) take moving vehicles and transport facilities as nodes to form mobile networks through wireless communication technology. Its application increases traffic safety and promotes the development of intelligent transport. However, VANETs have security concerns in data transmission. Fortunately, aggregate signature schemes can enhance security and efficiency in the VANETs. Nevertheless, some aggregated signature schemes for VANETs still have security concerns. In this paper, we conduct a security analysis of a conditional privacy-preserving CLAS scheme for VANETs

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S., Durgasravanthi, and Krishna Kumar M. "Study of Concrete Properties under Acid Attacks." International Journal of Trend in Scientific Research and Development 3, no. 5 (2019): 627–30. https://doi.org/10.5281/zenodo.3590893.

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Acidic attack on concrete imparts a unique set of damage mechanisms and manifestations compared to other durability issues of concrete. Sulfuric acid attack limits the service life of concrete elements and, thus, results in increased expenditures for the repair or in some cases replacement of the whole structure. To date, there is lack of standardized tests for specifically evaluating the resistance of concrete to sulfuric acid attack, which has caused great variability, for example in terms of solution concentration, pH level control, etc., among previous studies in this area. Accordingly, th

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Buvanesvari, Ramachandira, and Kanagaraj Joseph. "An Efficient Secured PIT Management and Attack Detection Strategy Enhanced by CSOA-DCNN Algorithm in a Named Data Networking (NDN)." International Journal of Intelligent Engineering and Systems 14, no. 1 (2021): 103–12. http://dx.doi.org/10.22266/ijies2021.0228.11.

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Named Data Networking (NDN) is a developing Internet design that utilizes a new network communication model dependent on the identity of Internet content. Its core component, the Pending Interest Table (PIT) serves an important role of recording Interest packet information. In managing PIT, the issue of flow PIT measuring has been very challenging because of the huge use of long Interest lifetime especially when there is no adaptable replacement strategy, subsequently affecting PIT performance. Named Data Networking (NDN) might experience some emerging threats such as Interest Flooding Attacks

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Agung Khoeruddin, Fahri Andriansyah Sudrajat, Galuh Purnama, Iman Kuwangid, Kurnia Kurnia, and Ricky Firmansyah. "Optimasi Fitur Seleksi Random Forest Menggunakan GA Dalam Klasifikasi Data Penyakit Gagal Jantung." Jurnal Penelitian Teknologi Informasi dan Sains 1, no. 2 (2023): 01–09. http://dx.doi.org/10.54066/jptis.v1i2.323.

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Diseases of the heart and blood vessels, such as coronary artery disease (heart attack), cerebrovascular disease (stroke), heart failure (HF), and other pathologies, are collectively referred to as cardiovascular disease (CVD). Globally, around 17 million people a year die from cardiovascular disease, with mortality increasing significantly for the first time in 50 years. Has performed an analysis of the performance of the selection algorithm with case studies predicting the determination of the customer's risk profile. Data mining is the extraction of previously unknown or previously hidden p

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Griffiths, Martin, and Carlos Oliveira. "The Big Bang – A hot Issue in Science Communication." Communicating Astronomy with the Public 4, no. 3 (2010): 7–11. https://doi.org/10.5281/zenodo.14881240.

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The Big Bang theory is one of the cornerstones of modern cosmology, drawing on a wealth of observational, experimental and theoretical data to underpin one of the most successful theories science has constructed. Why then is it under attack in the public domain? This paper will examine the theory and look at the perceived public problems that arise when it is communicated by following the dominant model of communicating science. This paper then examines whether in public perception, replacing a more traditional faith-based worldview by the Big Bang theory results in a loss of purpose, philosop

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Zhao, Jiaqi, Wanting Sun, Tuo Shi, and Chenghui Qin. "Design Method for Concrete Mix Proportion Based on Indices of Strength and Durability of Concrete Exposed to Chloride Attack." Advances in Materials Science and Engineering 2023 (February 10, 2023): 1–13. http://dx.doi.org/10.1155/2023/4134894.

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In the current design code, concrete mix proportions are not based on durability parameters that can quantitatively design the requirement of service life for chloride-exposed structures. Multifactor calculation models of durability index are developed, and the replacement of mineral admixtures in concrete is determined according to predetermined concrete strength and durability requirements. The chloride diffusion coefficient and aging factor of concrete are chosen as index parameters for the resistance of concrete to chloride salts. A multifactor model of the chloride diffusion coefficient o

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Berger, Felix, Neven Ukrainczyk, Andreas Bogner, Astrid Hirsch, Frank Dehn, and Eduardus Koenders. "Thermodynamic Modeling of Sulfuric and Acetic Acid Attack on Hardened Cement Paste: Effect of Silica Fume." ce/papers 6, no. 6 (2023): 1283–90. http://dx.doi.org/10.1002/cepa.2995.

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AbstractThe exposure of concrete structures to acid attack is a growing concern. This study employs thermodynamic modeling to investigate the changes in phase assemblage of powdered cement pastes subjected to a wide range of sulfuric and acetic acid concentrations. A modeling approach utilizing IPHREEQC implemented through Matlab is presented, and the obtained results are compared with pH measurements and compositions of equilibrated calcium and sulfate solutions. The influence of incorporating 11% silica fume (SF) as a replacement for cement predicted a 70% reduction of Portlandite content in

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Rodríguez, Eva, Marta Riera, Clara Barrios, and Julio Pascual. "Value of Plasmatic Membrane Attack Complex as a Marker of Severity in Acute Kidney Injury." BioMed Research International 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/361065.

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The aim of this study was to determine if complement pathway is activated in AKI; for this purpose, we measured, through ELISA sandwich, the terminal lytic fraction of the complement system, called membrane attack complex (C5b-C9), in AKI patients compared with patients with similar clinical conditions but normal renal function. Our data showed that complement system is activated in AKI. Plasmatic MAC concentrations were significantly higher in AKI patients than in those with normal renal function; this difference is maintained independently of the AKI etiology and is proportional to the sever

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Khater, Hisham Mustafa Mohamed. "Impact of electric arc furnace slag on geopolymer composites exposed to sulphate solution." Journal of Building Materials and Structures 4, no. 1 (2017): 1–15. http://dx.doi.org/10.34118/jbms.v4i1.26.

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Effect of sulfate solution on the geopolymer formed from electric arc furnace slag (EAF) along with water cooled slag and cement kiln dust was studied. Activation was carried up on usage of 25% CKD as it bears high alkali content that can initiate and propagate the polymerization process. The formed geopolymer products were immersed in 5% MgSO4 solution to determine the stability up on sulfate attack. FTIR, XRD, SEM, compressive strength and water absorption were utilized to examine the resulted geopolymer product under sulfate attack. Results showed that, the compressive strength of geopolyme

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Hisham, Mustafa Mohamed Khater. "Impact of electric arc furnace slag on geopolymer composites exposed to sulphate solution." Journal of Building Materials and Structures 4, no. 1 (2017): 1–15. https://doi.org/10.5281/zenodo.848887.

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Effect of sulfate solution on the geopolymer formed from electric arc furnace slag (EAF) along with water cooled slag and cement kiln dust was studied. Activation was carried up on usage of 25% CKD as it bears high alkali content that can initiate and propagate the polymerization process. The formed geopolymer products were immersed in 5% MgSO<sub>4</sub> solution to determine the stability up on sulfate attack. FTIR, XRD, SEM, compressive strength and water absorption were utilized to examine the resulted geopolymer product under sulfate attack. Results showed that, the compressive strength o

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Deveras, Ruby Anne E., and Francisco Bracho. "Inhibitor of Human Plasma Kallikrein DX-88 for the Treatment of Acute Attack in a Family with Hereditary Angioedema." Blood 104, no. 11 (2004): 4109. http://dx.doi.org/10.1182/blood.v104.11.4109.4109.

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Abstract Hereditary angioedema (HAE) is an autosomal dominant disorder that results in a deficiency of C1 esterase inhibitor (C1-INH), with a 1/10,000 to 1/50,000 prevalence worldwide (Nzeako 2001). Affected individuals manifest with recurrent attacks of intense, massive, localized non-pitting edema, without an allergic component, responding poorly to epinephrine and steroids. Prophylaxis include antifibrinolytic or androgens. A worrisome potentially fatal complication is laryngeal edema, which currently has no abortive therapy available. C1-INH is a serine protease inhibitor that also regulat

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Madinatul Munawwarah, M. Anwar Masadi, and Lulu Eka Aprlilia. "THE ATTACK OF AL-SYIFA HOSPITAL IN THE REPORT OF ONLINE MEDIA REPUBLIKA, ALJAZEERA, AND BBC NEWS." MABASAN 18, no. 1 (2024): 145–64. http://dx.doi.org/10.62107/mab.v18i1.854.

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This article aims to reveal the exclusion and inclusion strategies and the differences in the use of reporting strategies onthe news of the Al-Syifa Hospital attack on Republika, Aljazeera, and BBC News online media using Van Luwen's critical discourse analysis theory. The type of research used is a qualitative method. Data sources are taken from Republika online news media entitled Pasukan Israel Kepung 3 Rumah Sakit di Gaza dan Mengebom kembali RS Al-Shifa, Aljazeera net entitled Al-Jazirah Nit Tarshadu Awdhaa'uhu, Hakadza Yabdu al-Mustasyfa al-Indunisiya bi Gazzah tahta al-Qashfi, and BBC N

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Bhagya Lakshmi, Matsyapuri, and Kunamineni Vijay. "Evaluating the Performance of Concrete Containing Reclaimed Asphalt Pavement as Coarse Aggregate." CVR Journal of Science and Technology 26, no. 1 (2024): 8–12. http://dx.doi.org/10.32377/cvrjst2602.

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Reclaimed asphalt pavement is a recycled pavement material consisting of asphalt and aggregate that has been treated. The majority of RAP is recycled back into pavements; hence there is a general dearth of data on the properties of RAP in other prospective uses such as Portland cement concrete. In this work, the characteristics of Portland cement concrete with coarse RAP were examined in the laboratory. Further, basalt fibers have been employed in the concrete mix to enhance the properties of concrete. The different proportions of RAP have been added into the concrete as a replacement to coars

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Alali, Amal S., Rashad Ali, Muhammad Kamran Jamil, Javed Ali, and Gulraiz. "Dynamic S-Box Construction Using Mordell Elliptic Curves over Galois Field and Its Applications in Image Encryption." Mathematics 12, no. 4 (2024): 587. http://dx.doi.org/10.3390/math12040587.

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Elliptic curve cryptography has gained attention due to its strong resilience against current cryptanalysis methods. Inspired by the increasing demand for reliable and secure cryptographic methods, our research investigates the relationship between complex mathematical structures and image encryption. A substitution box (S-box) is the single non-linear component of several well-known security systems. Mordell elliptic curves are used because of their special characteristics and the immense computational capacity of Galois fields. These S-boxes are dynamic, which adds a layer of complexity that

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Grabois, Thiago Melo, Lucas Rosse Caldas, Nathália Rodrigues Julião, and Romildo Dias Toledo Filho. "An Experimental and Environmental Evaluation of Mortars with Recycled Demolition Waste from a Hospital Implosion in Rio de Janeiro." Sustainability 12, no. 21 (2020): 8945. http://dx.doi.org/10.3390/su12218945.

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Construction and demolition waste generation have increased significantly over the century, many times, as a result of obsolete buildings that lead the effort toward demolition. This paper investigates the environmental performance of mortars developed with recycled concrete from the partial building demolition of the Clementino Fraga Filho University Hospital in Rio de Janeiro, Brazil. Life Cycle Assessment is associated with experimental data to validate the application of the residue as an alternative to cement-based mortars. Natural river sand and recycled concrete aggregates, both at a mi

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Arun, B. R., K. Kavyashree, Kumar V. Hemanth, and Kumar Naveen. "Enhancing Strength and Durability of Self-Compacting Geopolymer Concrete by Incorporating Metakaolin and GGBS with Varied Molarity Concentration." Acta Scientiae Journal, Q2 Scopus Indexed 26, no. 1 (2024): 102–17. https://doi.org/10.5281/zenodo.10847138.

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Cement production is a significant energy-intensive process that releases a substantial amount of CO2, making it environmentally unfriendly. An alternative approach involves utilizing alkaline-activated binders, which can incorporate industrial by-products like Ground Granulated Blast Furnace Slag (GGBS) and Metakaolin (MK), rich in silicate materials. This innovative approach is epitomized by Geopolymer Concrete, which offers superior mechanical and durability characteristics compared to Ordinary Portland Cement (OPC). Specialized concrete formulations must exhibit excellent flowability, the

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Minato, Makoto, Takashi Ito та Jian-Guo Ren. "Coordination studies of 1,2-bis(diphenylphosphino)ethane with di-μ-hydroxo dinuclear complexes of tungsten(IV) and molybdenum(IV)". Journal of the Serbian Chemical Society 81, № 1 (2016): 47–55. http://dx.doi.org/10.2298/jsc150501066m.

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The new trifluoroethoxo phosphine complexes [Cp2M(?1-dppe)(CF3CH2O)]+ and [Cp2(CF3CH2O)M(?-dppe)MCp2(CF3CH2O)]2+ (M = Mo or W, Cp = ?-C5H5 and dppe = Ph2PCH2CH2PPh2) have been prepared by reaction of cationic di-?-hydroxo dinuclear complex of molybdenocene or tungstenocene [Cp2M(?-OH)2MCp2]2+ with dppe. From the 1H and 31P NMR data, the configurations of the products could be assigned. Furtheremore, X-ray crystallography was used to definitively identify one of the product [Cp2(CF3CH2O)Mo(?-dppe)MoCp2(CF3CH2O)]2+, which crystallizes in space group P21/c(#14) with a = 12.230(5) ?, b = 11.149(5)

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Meng, Yun Fang, Ya Yun Tan, and Rui Li. "Strength Studies of High Performance Concrete with Fly-Ash and Gangue." Advanced Materials Research 446-449 (January 2012): 3544–53. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.3544.

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The main purpose of this research was to enhance the strength and durability of concrete in both design and construction of high performance concrete. Particularly, the strength in high performance concrete is achieved by optimising the gangue, fly ash and silica fume replacement for cement. The gangue has been used as a cementitious material. Using data from tests on laboratory studies, comparisons are made of the properties and performance of the gangue, fly ash and silica fume concrete with conventional Portland cement concrete of similar and same mixture proportions. The many technical ben

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Mavridis, Evangelos, Eleftherios Bermperoglou, Eleni Pontiki, and Dimitra Hadjipavlou-Litina. "5-(4H)-Oxazolones and Their Benzamides as Potential Bioactive Small Molecules." Molecules 25, no. 14 (2020): 3173. http://dx.doi.org/10.3390/molecules25143173.

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The five membered heterocyclic oxazole group plays an important role in drug discovery. Oxazolones present a wide range of biological activities. In this article the synthesis of 4-substituted-2-phenyloxazol-5(4H)-ones from the appropriate substituted aldehydes via an Erlenmeyer–Plochl reaction is reported. Subsequently, the corresponding benzamides were produced via a nucleophilic attack of a secondary amine on the oxazolone ring applying microwave irradiation. The compounds are obtained in good yields up to 94% and their structures were confirmed using IR, 1H-NMR, 13C-NMR and LC/MS data. The

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Decker, Jens. "Phosphate Bonded Monolithic Refractory Materials with Improved Hot Strengths as a Potential Replacement for Phosphate Bonded Bricks." Materials Science Forum 693 (July 2011): 90–103. http://dx.doi.org/10.4028/www.scientific.net/msf.693.90.

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The phosphate bond generally provides a lower modulus of elasticity compared to more brittle conventional cement and ceramic bonded materials. The flexible bonding mechanism results in higher impact resistance. Moreover, phosphate bonded materials show excellent resistance to aluminium metal penetration and corundum growth. In addition, phosphate bonded bricks with low alkali content possess high hot strengths at elevated temperatures which can significantly increase their performance against mechanical abuse. Based on this information a project was started to develop phosphate bonded monolith

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D, Bhuvaneswari, and Shoba V. "ESTIMATION OF TROPICAL CYCLONE INTENSITY FROM SATELLITE IMAGERY USING A DENSE CONVOLUTIONAL NEURAL NETWORK FROM CHANNEL DATA." ICTACT Journal on Data Science and Machine Learning 5, no. 2 (2024): 589–97. https://doi.org/10.21917/ijdsml.2024.0127.

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Predicting the intensity of tropical cyclones is an exciting task since it involves a lot of pre-processing, the removal of characteristics, the extraction of numerous sets of parameters from satellite data, human analysis, and significant human involvement. This research suggested utilizing a war strategy optimization algorithm in conjunction with a channel attentive dense convolutional neural network to calculate the TC intensity. We use satellite imaging data for intensity values and the HURDAT2 database for wind speed input in this work. The image cropping approach is used in this suggeste

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Hindiyeh, Musa, Qi-Han Li, Ravi Basavappa, James M. Hogle, and Marie Chow. "Poliovirus Mutants at Histidine 195 of VP2 Do Not Cleave VP0 into VP2 and VP4." Journal of Virology 73, no. 11 (1999): 9072–79. http://dx.doi.org/10.1128/jvi.73.11.9072-9079.1999.

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ABSTRACT The final stage of poliovirus assembly is characterized by a cleavage of the capsid precursor protein VP0 into VP2 and VP4. This cleavage is thought to be autocatalytic and dependent on RNA encapsidation. Analysis of the poliovirus empty capsid structure has led to a mechanistic model for VP0 cleavage involving a conserved histidine residue that is present in the surrounding environment of the VP0 cleavage site. Histidine 195 of VP2 (2195H) is hypothesized to activate local water molecules, thus initiating a nucleophilic attack at the scissile bond. To test this hypothesis, 2195H muta

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Makarova, Anastasia V., Sergey B. Shustov, Yuri S. Khalimov, Sergey V. Gaiduk, Viktor P. Kitsyshin, and Dmitry S. Frolov. "Testosterone, atherosclerosis and cardiovascular risks." Bulletin of the Russian Military Medical Academy 25, no. 3 (2023): 481–91. http://dx.doi.org/10.17816/brmma321354.

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The study highlighted the most significant scientific works that examined the influence of androgen deficiency and its drug correction in coronary heart disease. The effects of androgens on metabolic parameters, development of atherosclerosis, inflammation, coagulation and thromboembolism, blood pressure, and development of cardiovascular complications were also evaluated. The importance of conducting long-term randomized international studies evaluating the effects of testosterone in men with androgen deficiency and cardiovascular diseases, a cautious approach to androgen replacement therapy,

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V. Vilasini, V. Vasudevan, S. Manuj Nanthan, and K. Lakshmi Kalpana Roy. "Analysis and Implementation of 3-D Transpositional Cipher Algorithm Based on Rubik’s Cube Mechanism." December 2022 4, no. 4 (2023): 283–95. http://dx.doi.org/10.36548/jscp.2022.4.007.

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The algorithms that are used for encrypting the text information for security purpose are referred as encryption algorithms. They are widely employed for the application on data transmission over networks. This is seen as a necessary part of data transmission since confidentiality and data privacy are important factors. Different encryption algorithms have different complexities, speeds of execution, and degrees of security. The Advanced Encryption Standard (AES) is one of the algorithms acknowledged by the U.S. government and other major organizations. The AES algorithm guarantees high securi

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Xu, Feihong, Junwei Luo, and Rahman Ziaur. "Cryptanalysis of Two Privacy-Preserving Authentication Schemes for Smart Healthcare Applications." Mathematics 11, no. 15 (2023): 3314. http://dx.doi.org/10.3390/math11153314.

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Ensuring the secure sharing of privacy-sensitive healthcare data is attracting considerable interest from researchers. Recently, Ogundoyin et al. designed a lightweight privacy-preserving authentication scheme named PAASH for smart health applications. Benil et al. proposed a public verification and auditing scheme named ECACS for securing e-health systems. Ogundoyin et al. and Benil et al. proposed an efficient certificateless aggregate signature (CLAS) scheme as their respective foundation signature schemes. They declared that their constructions were provably secure under the hardness assum

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Mark, O. G., A. K. Kamale, and J. K. Jolayemi. "Mechanical Properties of Self-Healing Concrete (Bio-Concrete) Modified with Limestone Powder." IOP Conference Series: Earth and Environmental Science 1492, no. 1 (2025): 012026. https://doi.org/10.1088/1755-1315/1492/1/012026.

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Abstract Many advantages over conventional concrete have been demonstrated by the use of bio-concrete, which is created by adding microorganisms to conventional concrete. Research on the durability and strength of bio-concrete that uses limestone powder as a filler instead of regular Portland cement is lacking. The aim of this study is to examine the mechanical properties of bio-concrete made with bacillus subtils as the healing agent and limestone powder as a supplementary cementitious material (SCM) at percentage replacement levels of 0%, 5%, 10%, and 15%. The materials used in this study we

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Al-Hamrani, Abathar, Murat Kucukvar, Wael Alnahhal, Elsadig Mahdi, and Nuri C. Onat. "Green Concrete for a Circular Economy: A Review on Sustainability, Durability, and Structural Properties." Materials 14, no. 2 (2021): 351. http://dx.doi.org/10.3390/ma14020351.

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A primary concern of conventional Portland cement concrete (PCC) is associated with the massive amount of global cement and natural coarse aggregates (NCA) consumption, which causes depletion of natural resources on the one hand and ecological problems on the other. As a result, the concept of green concrete (GC), by replacing cement with supplementary cementitious materials (SCMs) such as ground granulated blast furnace slag (GGBFS), fly ash (FA), silica fume (SF), and metakaolin (MK), or replacing NCA with recycled coarse aggregates, can play an essential role in addressing the environmental

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Mauri, Victor, Stephen Gerfer, Elmar Kuhn, et al. "Comparison of Self-Expanding RDV Perceval S versus TAVI ACURATE neo/TF." Thoracic and Cardiovascular Surgeon 69, no. 05 (2021): 420–27. http://dx.doi.org/10.1055/s-0040-1722692.

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Abstract Background Rapid deployment aortic valve replacement (RDAVR) and transcatheter aortic valve implantation (TAVI) have emerged as increasingly used alternatives to conventional aortic valve replacement to treat patients at higher surgical risk. Therefore, in this single-center study, we retrospectively compared clinical outcomes and hemodynamic performance of two self-expanding biological prostheses, the sutureless and rapid deployment valve (RDV) Perceval-S (PER) and the transcatheter heart valve (THV) ACURATE neo/TF (NEO) in a 1:1 propensity-score-matching (PSM) patient cohort. Method

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Hamad, Raphael, Anthony Nguyen, Éric Laliberté, et al. "Comparison of Del Nido Cardioplegia with Blood Cardioplegia in Adult Combined Surgery." Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery 12, no. 5 (2017): 356–62. http://dx.doi.org/10.1097/imi.0000000000000403.

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Objective del Nido solution (DNS) is a single-dose cardioplegia designed for pediatric use proposed to offer superior myocardial protection in adults. However, few data support this claim. We hypothesized that DNS and modified blood cardioplegia solution (BS) provide equivalent safety in combined adult valve surgery. Methods Between November 2014 and December 2015, 25 patients underwent primary aortic valve replacement and concomitant coronary artery bypass grafting (CABG) with DNS. Outcomes were compared with 25 patients who underwent the same surgery with BS between September 2013 and August

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Loginov, Evgeny. "Modeling Critical Situations of Resource Supply in Russia and Belarus in Emergency Situations and Special Periods." Artificial societies 19, no. 4 (2024): 0. https://doi.org/10.18254/s207751800032391-9.

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The article considers the problems of maintaining resource supply processes as the basis for life support in the regions of Russia and Belarus in critical conditions. The failure of control centers (including information systems and communication systems) of the economy of a region and a large municipality (regional center) poses the task of forming an organizational and information mechanism for replacing the withdrawn management functions. It is proposed to form a parallel or protected control circuit that, based on algorithms of information-analytical and computational support, will ensure

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