The article is devoted to the study of the wheat samples of the 3rd classwith the same quality indicators according to DSTU 3768, but had different baking properties. In particular, the “strength” of flour (W) significantly differed. The quantitative and qualitative state of the gluten-protein complex is significant factor for obtaining grain and flour of high baking quality. But only the quality indicators of red winter wheat according to DSTU 3768 - protein content, amount and quality of gluten cannot objectively characterize the baking quality of a specific batch of grain. For the main indications of the Ukrainian standard for wheat, all batches of wheat are practically identical. Foreign buyers do not use our Ukrainian standards, they give precedence to international methods and one of the most integral of them is the “strength” (W). The method demonstrates the main characteristics of the physical properties of wheat dough, which maybe especially important during bread making: elasticity (P), extensibility (L) and alveogram configuration coefficient (P/L). It has been established that the reason is the difference in the genetically determined alleles of the storage proteins of the studied samples. In the last years "filler" and "weak" varieties of wheat of domestic and foreign selection have appeared in Ukraine. In the conditions of replacing traditionally grown varieties of "strong" wheat in Ukraine with new high-yielding varieties of domestic and foreign breeding, it is not enough to determine the parameters recorded in DSTU 3768 to determine the baking quality, it is necessary to introduce new, more objective research methods. It is concluded that for an objective assessment of the baking properties of wheat, international standards ISO 27971, ISO 21415, ISO 5529 should be used.

For more than 10 years, cross-site scripting (XSS) has been included in OWASP's ‘Top 10 Web Application Security Risks’. 1 Although the issue is very well documented, it is sometimes overlooked by application owners. As a result, penetration testers frequently encounter this vulnerability, which takes several forms. For more than 10 years, cross-site scripting (XSS) has been included in OWASP's top web application security risks. Yet it's an issue that is often overlooked. The problem has also evolved and many people still do not understand the risks surrounding Document Object Model (DOM) or client-side XSS. Through understanding the vector itself, threat surfaces of applications will become ever-more restricted and safer for the end user. A thorough understanding of DOM-based XSS will help balance the scales of application security and usability, says Josh Hickling of Pentest People.

AbstractThis paper presents the results of a study that evaluated the performance of a new runway at the northernmost US airport in Barrow, Alaska. Due to the appearance of early pavement surface d...

Quarry by-products (QB), usually less than 1/4 in. (6 mm) in size, are the residual deposits from the production of required grades of aggregate. This paper provides findings of a detailed laboratory study with the objective of characterizing the engineering properties of QB materials produced in the primary, secondary, and tertiary aggregate production stages from four different quarries operating in Illinois. Property tests were conducted for determining aggregate gradation, morphological shape characteristics, compaction properties (moisture-density), chemical composition and strength properties of QB samples. Since the unconfined compressive strength for QB materials is relatively low, chemical admixture stabilizers such as Portland cement and Class C fly ash were used to improve the strength properties. This study aims at evaluating properties governing the untreated and stabilized strength of QBs such as source variation, compacted density, chemical composition, gradation, particle shape and angularity, as well as the uniformity of distribution and the effectiveness of stabilizer. QB samples treated with 2% cement or 10% Class C fly ash by dry weight were found to be 10 to 30 times stronger than the virgin QB samples. Such significant increases in the strength of stabilized QB materials observed may indicate suitability of QBs for sustainable pavement applications.

The past two decades have seen significant efforts to standardize a series of simplified test methods to characterize the dynamic modulus (DM) and repeated load permanent deformation (RLPD) performance characteristics of asphalt mixtures using the asphalt mixtures performance tester (AMPT). While the current AASHTO T 79 test specifications for the AMPT are faster and easier to perform than their preceding research grade test protocols, there is still reluctance among highway agencies and industry to conduct performance testing using the AMPT. One significant reason is the lengthy process of sample preparation and testing for the DM and RLPD tests. Two studies to expedite this process are reported here. First, the potential for abbreviating the DM testing procedure was examined. It provides the option to fully exclude testing at 40°C by adding an additional frequency of 0.01 Hz at 20°C. This approach reduces time for testing as well as for sample conditioning at high temperature. Second, the possibility of reducing the total number of required specimens was evaluated. The variation of the DM under repetitive testing and the appropriateness of performing the RLPD test on samples already tested for DM were evaluated. The results showed that specimen damage or densification because of DM testing is insignificant. As a consequence, DM test specimens can be re-used for RLPD testing, reducing the required number of samples from 12 to 9.

Abstract This study investigated the effect of gilsonite and Styrene-Butadiene-Styrene (SBS) as asphalt binder modifiers on the physical and rheological properties of asphalt binders. For this, binder tests such as penetration test, softening point, rotational viscosity (RV), Dynamic Shear Rheometer (DSR), and Bending Beam Rheometer (BBR) were conducted on the neat and modified binders. The effect of gilsonite and SBS on the binder temperature susceptibility was also investigated by measuring Penetration Index (PI), Activation Energy (AE) and Viscosity-Temperature Susceptibility (VTS) of all the study binders. Fourier-Transform Infrared Spectroscopy (FTIR) test was directed toward investigation of the compositions’ structure. The statistical analysis was also utilized to investigate the effect of gilsonite and SBS on the physical and rheological properties and temperature susceptibility of asphalt binders. The results indicated that incorporation of gilsonite and SBS to asphalt binder decreases the temperature susceptibility and improves mechanical and rheological properties of the asphalt binders. In addition, the results showed significant relationships between PI, AE and VTS with high temperature performance grade (HT) for almost all the modified binders. Results of Analysis of Variance (ANOVA) revealed that even though the binder modifier type has no significant effects on PI, AE, VTS, and viscosity, the modifier dosage can significantly affect these parameters.

The overall objective of this study was to evaluate the influence of selected recycling agents (RAs) and recycled materials on the development of cracking potential with respect to oxidative aging. Given the complex nature of varying base asphalt binders, recycled materials, whether recycled asphalt pavement (RAP), reclaimed asphalt shingles (RAS), or both, and the complexity of their combined interactions with recycling agents, standard evaluation protocols for binder grading and evaluation may be insufficient. The binder blend aging predictions or oxidation modeling evaluation was introduced as a means to evaluate the combined influence of both binder oxidation kinetics and resulting rheological changes on the measured cracking potential of the various binder blends—that is, Glover–Rowe (G-R) parameter—driven by temperature estimation modeling over simulated in-service durations at example geographic locations. This evaluation has demonstrated the importance of adequate characterization of the specific materials being used in conjunction with selection of the correct dose of the appropriate recycling agent to ensure sufficient resistance to cracking and embrittlement of proposed material combinations. The combined influence of all the interested components did not always add up to the sum of the individual parts, nor are the measured interactions consistent with increased levels of oxidation. Therefore, the prevailing conclusion of the study as a whole indicated that material-specific evaluations are needed to identify the complex interactions taking place within the material combinations of interest, but also multiple levels of aging at appropriate intervals may be necessary for comprehensive characterization.

ABSTRACTRolling resistance is defined as the energy lost when the vehicle tyre rolls over a pavement surface. The pavement surface texture, roughness and deformation are shown to influence rolling resistance to varying degrees. Several recent studies have focused on determining the vehicle rolling resistance primarily based on pavement surface characteristics without quantifying the effect of pavement elastic deformations on this parameter. This paper focuses on isolating the pavement structure-induced component of the rolling resistance by performing finite element (FE) modelling on flexible and rigid pavement structures using the ABAQUS software under a moving wheel load. The structure-induced rolling resistance (SRR) was shown to be significant for flexible pavements with thin structures and weak support, and relatively insignificant for rigid pavements and thick flexible pavements at low temperature. Due to the complexity of the FE analyses, a reliable procedure was developed for predicting the SRR for in-service pavements using falling weight deflectometer data. Quantifying the effect of SRR can lead to the construction of pavement structures with lower rolling resistance, which in turn will reduce the fuel consumption and the carbon footprint of the roadway network.