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Journal articles on the topic 'Modified additive method'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

G, Yaskov, Chugay A, Romanova T, and Shekhovtsov S. "Modern method of topology optimization of products in additive production." Artificial Intelligence 27, jai2022.27(1) (2022): 301–10. http://dx.doi.org/10.15407/jai2022.01.301.

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The article considers the problem of optimizing the topology of products in additive manufacturing due to the optimal placement of circular holes. The task is to pack several circles of variable radii, set within the limits set by 3D printing standards. A two-criteria formulation is proposed, which takes into account the packing factor and the maximum mechanical stress of the products. The method of the main criterion is used to find a compromise solution to the problem. A new approach has been developed, which is based on the modified method of Apollonian packing of circles and nonlinear opti

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Fathanah, U., C. M. Rosnelly, Z. Zuhra, et al. "Synthesis and characterization of hydrophobic polyethersulfone membranes modified by hydrophilic additives by NIPS method." IOP Conference Series: Earth and Environmental Science 1510, no. 1 (2025): 012073. https://doi.org/10.1088/1755-1315/1510/1/012073.

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Abstract Membrane technology is a separation technology commonly used in water or wastewater treatment. Polyethersulfone (PES) is a polymer material commonly used in membrane manufacturing, but PES is hydrophobic, making it susceptible to fouling. Fouling can reduce membrane performance. Therefore, modifications in membrane manufacturing are needed, namely by adding hybrid silica/chitosan additives to the membrane matrix. This study aims to improve the hydrophilicity and performance of PES membranes by adding hybrid silica/chitosan additives using the Non-Solvent Induced Phase Separation (NIPS

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Sui, Yuan Yuan, and Zhong Da Chen. "Application and Mechanism of a New Type of Polyethylene Modifying Additive in Asphalt Mixture." Advanced Materials Research 403-408 (November 2011): 656–59. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.656.

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Asphalt mixture is often modified by adding modifier in order to improve the pavement performance such as high temperature stability, low temperature crack resistance and water stability. The author applies a new type of polyethylene modifying additive for asphalt mixture. The adding method of modifier is different from traditional method. Three modifiers were used in this study. It has been found that each modifier can improve the asphalt mixture performances. The author analyses the reason why modifying additive can improve asphalt mixture performances and give an advice to choose the type o

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Wrześniewska-Tosik, Krystyna, Tomasz Mik, Ewa Wesołowska, Sarah Montes, Tomasz Kowalewski, and Michał Kudra. "Composite Nonwovens with Natural Additive." Fibres and Textiles in Eastern Europe 28, no. 1(139) (2020): 123–29. http://dx.doi.org/10.5604/01.3001.0013.5867.

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Various methods of nonwoven composite materials manufacturing are known. One such method is the well-known technique called spun-bonding. The production technology for composite nonwoven by the spun-bond method is known, but the technique of introducing an additive in the form of shredded wastes of natural origin so as to obtain a composite nonwoven fabric with interesting functional properties is new. The article describes a method of producing an innovative composite nonwoven using the spun-bond technique. As a result of incorporating various additives into the nonwoven structure, composite

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Mendoza, Hervin Errol, Myrna Rodriguez, and Veronica Migo. "Modified Reinecke’s salt spectrophotometric method for quantifying choline chloride in feed additive." SciEnggJ 16, no. 2 (2023): 337–45. http://dx.doi.org/10.54645/2023162xle-38.

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Rampant choline adulteration in feedstuffs has been a huge problem in many parts of Asia due to the lack of a reliable standard method to quantify choline chloride (CC), the most common form of choline additive in feeds. Contemporary methods are either expensive, non-selective or require elaborate and sophisticated instrumentation. In this work, Reinecke’s salt spectrophotometric method was modified and extensively validated to quantify choline chloride in a feed additive sample. The existing method requires the use of a calibration material that might have questionable purity and longer time

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Taufik Ulhakim, Muhamad, Lestari Karina Chintya, Ade Suhara, Agung Bertolomeus Haryanto, Auliya Rahmatul Ummah, and Arip Syaripudin Nur. "Ethanol additive addition to gasoline: viscosity investigation using stokes law linear regression." Jurnal Teknik Mesin Mechanical Xplore 4, no. 1 (2023): 1–7. http://dx.doi.org/10.36805/jtmmx.v4i1.5612.

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Nowadays, global warming is a tremendous phenomena in the world. Every country trying to solve these conditions, including Indonesia that has a campaign to reduce the emission of CO and HC from vehicles. However, the number of vehicles is increasing every year. Based on that condition, the researchers are trying to modify the fuel with the additive. This work modified the gasoline with 10% ethanol additive addition and investigated the viscosity properties using Stokes law linear regression method and compared to pure gasoline. The viscosity properties are chosen by their effect on emission of

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Li, Tong, Tingting Li, Houfeng Xiong, and Donglei Zou. "Factors influencing hydroquinone degradation in aqueous solution using a modified microelectrolysis method." Water Science and Technology 71, no. 3 (2014): 397–404. http://dx.doi.org/10.2166/wst.2014.534.

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The discharge of hydroquinone (HQ), an important chemical raw material, to natural waters poses different ecological threats to aquatic organisms. In this study, we investigated the removal performance of traditional and modified microelectrolysis methods in aqueous solutions. The traditional microelectrolysis packing was modified by adding manganese (Mn), zinc (Zn), and copper (Cu) powder as additives. The factors affecting the removal performance of HQ, such as catalytic metal type, mass fraction of additive, reaction time, and initial pH, were examined. The results showed that the Mn modifi

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Xu, Gang, Xiaojing Gong, Yunhong Yu, and Xianhua Chen. "A Rapid Method for the Determination of SBS Content Based on the Principle of Orthogonal Testing." Applied Sciences 11, no. 22 (2021): 10911. http://dx.doi.org/10.3390/app112210911.

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The performance of Styrene-butadiene-styrene (SBS) modified asphalt is closely related to the content of SBS modifier. In the production process of modified asphalt, a certain amount of additive such as sulfur and rubber oil may be added to reduce the segregation and promote the swelling of the polymer, but the effect of these additives on determining SBS content in asphalt is not yet clear. This paper presents the calibration curves of SBS content based on rutting factor and creep slope and points out its defects according to the temperature scanning test and the bending beam rheometer test.

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Birosz, Márton Tamás, Mátyás Andó, and Sudhanraj Jeganmohan. "Finite Element Method modeling of Additive Manufactured Compressor Wheel." Journal of The Institution of Engineers (India): Series D 102, no. 1 (2021): 79–85. http://dx.doi.org/10.1007/s40033-021-00251-8.

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AbstractDesigning components is a complex task, which depends on the component function, the raw material, and the production technology. In the case of rotating parts with higher RPM, the creep and orientation are essential material properties. The PLA components made with the material extrusion process are more resistant than VeroWhite (material jetting) and behave similarly to weakly cross-linked elastomers. Also, based on the tensile tests, Young’s modulus shows minimal anisotropy. Multilinear isotropic hardening and modified time hardening models are used to create the finite element mode

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Bahia, Hussain U., Huachun Zhai, and Andres Rangel. "Evaluation of Stability, Nature of Modifier, and Short-Term Aging of Modified Binders Using New Tests: LAST, PAT, and Modified RTFO." Transportation Research Record: Journal of the Transportation Research Board 1638, no. 1 (1998): 64–71. http://dx.doi.org/10.3141/1638-08.

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In a recent survey of users and producers of modified asphalts, stability and short-term aging were two of the main concerns regarding the use of modified asphalts. In an NCHRP project, a concentrated effort was put into development of revised or new testing procedures to better characterize the nature of modified asphalt and to solve some of the difficulties with using existing aging procedures developed for neat asphalts and modified asphalts. Three main procedures have been proposed to complement the existing Superpave procedures: the laboratory asphalt stability test, for measuring the sto

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Prysiazhny, Yuriy, Serhiy Pyshyev, Mariia Shved, Iryna Pochapska, and Maksym Niavkevych. "Plasticizing Additive to Road Bitumens Based on High-Sulfur Brown Coal." Chemistry & Chemical Technology 18, no. 4 (2024): 623–29. https://doi.org/10.23939/chcht18.04.623.

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Using the oxidation desulfurization method, a plasticizing additive for road bitumen was obtained from high-sulfur brown coal. Taking into account the need to maximize the quantity of the plasticizing additive while maintaining quality, constant conditions of the oxidative desulfurization process were selected and the influence of the main variable technological factors on it was investigated. The sample of a plasticizing additive was obtained in near-optimal conditions of the lignite oxidation desulphurization process. It was established that its addition to bitumen modified with coumarone-in

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Kodzoev, M.-B., S. Isachenko, S. Kosarev, et al. "Modified gypsum binder." MATEC Web of Conferences 170 (2018): 03022. http://dx.doi.org/10.1051/matecconf/201817003022.

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Gypsum-based binder modified by clay has properties close to the gypsum binder and can be used as plaster formulations or mortars. There are several reasons and chief among them is the lack of scientific based theory of formation and hardening properties of gypsum-based binder modified by clay without additives and that modified by additives. One of the classic ways of studying the mechanism of hydration of gypsum binders is the analysis of the heat liberation: hydration heat of the binder. With the thermos method of determining the heat liberation the ambient temperature is constant and the t

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Tetra Oktaviani, Dina Tri Septiningtyas, and Wirdatun Nafiah Putri. "Functional Performance of Modified Porous Asphalt Mixtures with Gilsonite Additive." Jurnal Inotera 9, no. 1 (2024): 184–89. http://dx.doi.org/10.31572/inotera.vol9.iss1.2024.id342.

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Porous asphalt is an asphalt mixture with more voids than other asphalt mixtures of a surface layer of a typical flexible pavement structure. Porous asphalt mixtures have several advantages, namely the voids contained in the porous asphalt mixture function to help drain water vertically and horizontally, providing greater skid resistance. In addition to these advantages, the disadvantage of porous asphalt mixtures is the low stability value caused by the large number of voids in the porous asphalt mixture. Because porous asphalt mixtures have many advantages, to increase the stability value of

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Orlov, Alexander, Marina Belkanova, and Nikolay Vatin. "Structural Ceramics Modified by Water Treatment Plant Sludge." Materials 13, no. 22 (2020): 5293. http://dx.doi.org/10.3390/ma13225293.

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Water treatment plant (WTP) sludge is actively used in building materials production. The object of this research was modifying additives for ceramic bricks from WTP aluminium-containing sludge. The research aim of this study was to determine the suitability of a million-plus population city’s WTP sludge as a burning-out additive in the production of structural ceramics and to establish the optimal conditions for obtaining products with the best characteristics. The raw water belongs to water belongs to the hydrocarbonate class, the calcium group, and it is of low turbidity (1.5–40 mg/L kaolin

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Mustafa Kamal, Mazlina, Kamarul Arifin Hadithon, and Rohani Abu Bakar. "Warm Mix Asphalt Additive in Natural Rubber Modified Bitumen." MATEC Web of Conferences 266 (2019): 04005. http://dx.doi.org/10.1051/matecconf/201926604005.

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The growing concern over the reduction of emissions and energy savings has led to the development of new paving technologies that are environmentally friendly. As a result, a warm mix asphalt technologies have been introduced to reduce the mixing and compaction temperature for asphalt mixture. The influence of additive with variation loading on the performance of Natural Rubber Modified Bitumen was acquired. In this work, Brookfield rotational viscometer test and Dynamic Shear Rheometer (DSR) mechanical analysis method and typical bitumen tests were employed. Results indicated that viscosity a

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Altynbekova, A. D., R. E. Lukpanov, D. S. Dyussembinov, A. M. Askerbekova, and E. V. Tkach. "Effect of a complex modified additive on the setting time of the cement mixture." Kompleksnoe Ispolʹzovanie Mineralʹnogo syrʹâ/Complex Use of Mineral Resources/Mineraldik Shikisattardy Keshendi Paidalanu 325, no. 2 (2022): 29–38. http://dx.doi.org/10.31643/2023/6445.15.

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The article presents studies of the effect of a complex modified additive on the setting time of cement paste. The work describes the method of determining the setting time of the cement paste of standard consistency, the selection of the optimal composition of the additive at different percentages of its components, allowing accelerating the setting time. In this work, the authors used a complex modified additive including alkali (caustic soda NaOH), post-alcohol bard (alcohol production waste), and hardening accelerator (gypsum) in different percentages. Performed a comparative study of the

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Ren, Yong Qiang, Zhi Ning Huang, and Yan Fu. "Evaluation on Combustion Properties of Nanoparticle as Fuel Additive." Advanced Materials Research 335-336 (September 2011): 1516–19. http://dx.doi.org/10.4028/www.scientific.net/amr.335-336.1516.

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To improve combustion properties of fuel oils, save energy and reduce pollution, the metal nanoparticles modified by fatty acids have been prepared. The dispersion capacities of these modified nanoparticles in liquid paraffin oil were examined, and were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectrum (FTIR) . The results show they possess similar crystal structure as organic shell, and average particle diameters, which are in agreement with their excellent oil-solubilities. Moreover, the properties of the modified nan

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Mu, Qiu Hong, Dan Peng, Feng Wang, Wei Ju, and Fang Zhi Zhang. "Preparation and Properties of Additive Polysiloxane/POSS Hybrid Composites." Key Engineering Materials 753 (August 2017): 50–59. http://dx.doi.org/10.4028/www.scientific.net/kem.753.50.

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Octavinyl polyhedral oligomeric silsesquioxane (POSS) were used to hybrid with polysiloxane matrix by two methods, physical blending (PB) and chemical modification (CM). Mechanical, thermal and morphological properties of composites were studied by changing the percentage of POSS and investigated by thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and wide angle X-ray diffraction (XRD) measurements. The results show that the hybrid composites have better mechanical and thermal property than the parent polymer matrix, and CM-prepared composites show better reinforcing role c

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Hamicaeva, Alla, Alan Hoziev, Mira Hestanova, Svetlana Zokoeva, and Vladimir Sadovoy. "FOOD ADDITIVE TECHNOLOGY DEVELOPMENT FROM MODIFIED BEANS FOR USE IN MEAT GERODIETETIC PRODUCTS FORMULATIONS." Bulletin of KSAU, no. 7 (March 5, 2024): 220–28. http://dx.doi.org/10.36718/1819-4036-2024-7-220-228.

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The objective of the study is to develop a technology for producing a food additive from sprouted beans of the Pobeditel variety grown in the Republic of North Ossetia – Alania in order to add it to the recipes for functional meat products of gerodietetic orientation. Objectives: theoretical substantiation of the possibilities of using a food additive from regional plant resources in the production of functional meat products of gerodietetic orientation; development of a technology for producing a food additive - bean protein concentrate (BPC) from modified beans of the Pobeditel variety grown

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Góral, Marek, Maciej Pytel, Ryszard Filip, and Andrzej Nowotnik. "The Microstructure of Hafnium Modified Aluminide Coatings Deposited by CVD Method." Materials Science Forum 844 (March 2016): 172–76. http://dx.doi.org/10.4028/www.scientific.net/msf.844.172.

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The paper presents results of microstructural analysis of Hf-modified aluminide coatings. The coating was obtained using chemical vapour deposition (CVD) method at 1040°C using BPX-Pro 325 S equipment (Iond Bond). The deposition process time was 960 mintutes. The IN-718, IN-100 as well as CMSX-4 single-crystal nickel superalloys were the substrate material. The observation of coating was carried out using scanning electron microscopy. Chemical composition was analyzed using EDS method. The results showed that hafnium accumulates mainly on diffusion/additive layer interface and forms a „chain”

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Feng, Guanqun, Xiaochen Guo, Faming Li, Yulong Liao, Yuting Hou, and Mingzhen Liu. "A practical method for fabricating perovskite solar cells with remarkable water resistance via additive engineering." Molecular Systems Design & Engineering 3, no. 5 (2018): 729–33. http://dx.doi.org/10.1039/c8me00021b.

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Noma, Hisashi, and Takahiro Kitano. "Modeling Nonlinear Effects in Risk Ratio and Risk Difference Using Poisson and Gaussian Additive Regression Models." Stats 7, no. 4 (2024): 1473–82. https://doi.org/10.3390/stats7040086.

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The logistic additive regression model has been a standard method in modeling nonlinear effects for multivariate analyses of binary outcomes in the generalized additive model (GAM) framework. However, the resultant nonlinear estimate of the smooth function is interpreted as a nonproportional increment of the odds ratio in the increment of the explanatory variable. The odds ratio cannot be interpreted as an effect measure by itself; it is only interpretable as an approximation of the risk ratio when the frequency of events is low. In this article, we propose alternative nonlinear regression met

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Tong, Tong, Wenhui Cao, Han Zhang, Jianguo Chen, Dengren Jin, and Jinrong Cheng. "Controllable phase evolution of bismuth ferrite oxides by an organic additive modified hydrothermal method." Ceramics International 41 (July 2015): S106—S110. http://dx.doi.org/10.1016/j.ceramint.2015.03.174.

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Bogdanov, Sergey P., and A. P. Garshin. "Refractory Core-Shell Powders for Additive Industries." Solid State Phenomena 265 (September 2017): 529–34. http://dx.doi.org/10.4028/www.scientific.net/ssp.265.529.

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The finished products obtained when the surfaces of powders of refractory materials (diamond, boron nitride, silicon carbide, tungsten carbide, tungsten) were coated with thin films by the method of iodide transport are presented. The developed method enables to obtain powder composite materials of core-shell type that have surface thickness varying in the range from 1 nm to several micrometers. From the powders modified by the films of metals and thier compounds composite materials were developed, their physical and mechanical characteristics were studied. The characteristics turned out to be

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Rengga, W. D. P., M. Sudibandriyo, and M. Nasikin. "Development of Formaldehyde Adsorption using Modified Activated Carbon – A Review." International Journal of Renewable Energy Development 1, no. 3 (2012): 75. http://dx.doi.org/10.14710/ijred.1.3.75-80.

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Gas storage is a technology developed with an adsorptive storage method, in which gases are stored as adsorbed components on the certain adsorbent. Formaldehyde is one of the major indoor gaseous pollutants. Depending on its concentration, formaldehyde may cause minor disorder symptoms to a serious injury. Some of the successful applications of technology for the removal of formaldehyde have been reported. However, this paper presents an overview of several studies on the elimination of formaldehyde that has been done by adsorption method because of its simplicity. The adsorption method does n

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Wang, Yuanbin, Ray Y. Zhong, and Xun Xu. "A decision support system for additive manufacturing process selection using a hybrid multiple criteria decision-making method." Rapid Prototyping Journal 24, no. 9 (2018): 1544–53. http://dx.doi.org/10.1108/rpj-01-2018-0002.

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Purpose Additive manufacturing (AM) has been increasingly used in various applications in recent years. However, it is still challenge when it comes to selecting a suitable AM process. This is because the outcome may vary due to not only different materials and printers but also different parameters and post-processes. This paper aims to develop an efficient method to help users understand trade-offs and make right decisions. Design/methodology/approach A hybrid method is proposed to help users select appropriate options from a large-scale and discrete option space in an interactive way. First

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Lukpanov, Rauan, Duman Dyussembinov, Aliya Altynbekova, Serik Yenkebayev, and Adiya Zhumagulova. "Investigation of Effect of Proposed Two-Stage Foam Injection Method and Modified Additive on Workability of Foam Concrete." Materials 17, no. 9 (2024): 2024. http://dx.doi.org/10.3390/ma17092024.

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This article presents the results of an investigation of the proposed method and the influence of a modified additive on foam concrete properties. X-ray diffraction analysis showed that the modified additive has a variable mineralogical composition, and the joint use of the components contributes to the synergistic effect, improving the processes of cement hydration. Microscopy of the foam concrete samples showed the presence of microcracks and micropores in samples both with and without the additive. However, the use of the additive significantly reduced their number and size, which indicates

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Ueng, Shyh-Kuang, Ya-Fang Hsieh, and Yu-Chia Kao. "A Voxel-Based Watermarking Scheme for Additive Manufacturing." Applied Sciences 11, no. 19 (2021): 9177. http://dx.doi.org/10.3390/app11199177.

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Digital and analog contents, generated in additive manufacturing (AM) processes, may be illegally modified, distributed, and reproduced. In this article, we propose a watermarking scheme to enhance the security of AM. Compared with conventional watermarking methods, our algorithm possesses the following advantages. First, it protects geometric models and printed parts as well as G-code programs. Secondly, it embeds watermarks into both polygonal and volumetric models. Thirdly, our method is capable of creating watermarks inside the interiors and on the surfaces of complex models. Fourth, the w

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Zhao, Zhen Hua, and Xiao Hong Hao. "A Novel Illumination Compensation Method Using Wavelet Packet Transformation." Advanced Materials Research 317-319 (August 2011): 897–900. http://dx.doi.org/10.4028/www.scientific.net/amr.317-319.897.

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A novel illumination compensate method is proposed in this paper to improve recognition performance. A modified lighting model called Lambertin which includes additive noise and multiplicative noise are presented firstly. Then, additive noise is removed by using wavelet packet transformation. Next, the processed image is transformed into logarithm domain and the multiplicative noise, which has been named additive noise, is removed by means of the same above algorithm. Finally, a compensated face image is obtained. We examine the proposed method on Yale extended B database compared with other m

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Mostovoy, Anton, Andrey Shcherbakov, Andrey Yakovlev, Sergey Arzamastsev, and Marina Lopukhova. "Reinforced Epoxy Composites Modified with Functionalized Graphene Oxide." Polymers 14, no. 2 (2022): 338. http://dx.doi.org/10.3390/polym14020338.

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The possibility of using graphene oxide as a modifying additive for polymer fiber-reinforced composites based on epoxy resin and basalt roving has been studied. The content of graphene oxide in the system has been experimentally selected, which has the best effect on the physico-mechanical properties of the obtained polymer composite material. The efficiency of the modification of the graphene oxide surface with APTES finishing additives and aminoacetic acid, which provides chemical interaction at the polymer matrix–filler interface, has been considered. The influence of graphene oxide and fun

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Firstov, A. P., and O. I. Shevchenko. "Core mixture based on modified lignosulfonate." Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information 79, no. 5 (2023): 401–5. http://dx.doi.org/10.32339/0135-5910-2023-5-401-405.

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Technical lignosulfonates (LST) are a by-product in the production of cellulose by the sulfite method. Lignosulphonates are the third most widely used binder in foundries (after clay and liquid glass). They are used for rawforming, dryforming, making rods in heated tooling, non-stick paints, etc. Molding mixtures with only one LST are not used, as they have low strength due to the occurrence of stresses and cracks in the films of this binder. In addition, LST, like all water-soluble binders, have a suspended hygroscopicity, which reduces thestrength of the rod (mold) during storage. However, w

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Fedotova, Olga, Dmitry Myalenko, Nataliya Pryanichnikova, Elena Yurova, and Evgeniya Agarkova. "Microscopic and Structural Studies of an Antimicrobial Polymer Film Modified with a Natural Filler Based on Triterpenoids." Polymers 14, no. 6 (2022): 1097. http://dx.doi.org/10.3390/polym14061097.

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The aspects of component visualization of the antimicrobial triterpenoids (betulin) additive, both on the surface and in the bulk of the polymer, constituting food film packaging, are considered. This paper presents new knowledge about the morphology and surface structure of modified films using three independent methodological approaches: optical microscopy; a histological method adapted to packaging materials; and a method of attenuated total internal reflection (ATR) spectroscopy in the infrared region with Fourier transform. The use of these methods shows the betulin granules, individual o

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Zyalalov, Sh R., V. S. Dezhatkina, and N. V. Sharonina. "RESEARCH RESULTS OF THE PROCESS OF CLEANING POTATO TUBERS AND CARROT ROOT CROPS USING ULTRASOUND." Vestnik of Ulyanovsk state agricultural academy, no. 2 (50) (June 8, 2020): 201–5. http://dx.doi.org/10.18286/1816-4501-2020-2-201-205.

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The manifestation of mineral deficiency in the body of animals contributes to a decrease in their productivity and the development of diseases such as perversion and loss of appetite, anemia, endemic goiter, rickets, and osteoporosis. One of the ways to solve the problem of mineral insufficiency is the scientific search and development of advanced formula of feed additives based on natural minerals processed by high technologies. The aim of this study is to determine the effectiveness of using modified diatomite as a feed additive for dairy cows. The exeriment was carried out in Ulyanovsk regi

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BISBEE, JAMES. "BARP: Improving Mister P Using Bayesian Additive Regression Trees." American Political Science Review 113, no. 4 (2019): 1060–65. http://dx.doi.org/10.1017/s0003055419000480.

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Multilevel regression and post-stratification (MRP) is the current gold standard for extrapolating opinion data from nationally representative surveys to smaller geographic units. However, innovations in nonparametric regularization methods can further improve the researcher’s ability to extrapolate opinion data to a geographic unit of interest. I test an ensemble of regularization algorithms and find that there is room for substantial improvement on the multilevel model via more flexible methods of regularization. I propose a modified version of MRP that replaces the multilevel model with a n

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Shakhmov, Zhanbolat, Adiya Zhumagulova, Samal Kosparmakova, Aru Kozhahmet, and Jakharkhan Kabdrashit. "Properties of modified bitumen in road construction." Technobius 3, no. 2 (2023): 0040. http://dx.doi.org/10.54355/tbus/3.2.2023.0040.

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The increase in the construction of asphalt concrete roads in Kazakhstan has led to the development of research on raw materials in this industry. Bitumen binder as the main component affecting the deformation properties, as well as the physical and mechanical properties of coatings, in general, is of the greatest interest to builders. The analysis of scientific sources in the field of the application of various modifiers of bitumen binders is carried out. Polymer-based additives have been widely used in road construction. The use of half-dimensional additives contributes to the improvement of

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Kanani, Armin Yousefi, Xing-Er Wang, Xiaonan Hou, Allan E. W. Rennie, and Jianqiao Ye. "Analysis of failure mechanisms of adhesive joints modified by a novel additive manufacturing-assisted method." Engineering Structures 277 (February 2023): 115428. http://dx.doi.org/10.1016/j.engstruct.2022.115428.

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Zhao, Zhenyu, Riguang Lin, Zehong Meng, Guoqiang He, Lei You, and Yongxiong Zhou. "A modified truncation singular value decomposition method for solving ill-posed problems." Journal of Algorithms & Computational Technology 13 (November 23, 2018): 174830181881360. http://dx.doi.org/10.1177/1748301818813609.

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A modified truncated singular value decomposition method for solving ill-posed problems is presented in this paper, in which the solution has a slightly different form. Both theoretical and numerical results show that the limitations of the classical TSVD method have been overcome by the new method and very few additive computations are needed.

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Zhuang, Chuanyi, Hao Guo, Fengxiang Li, et al. "Study on Adhesion Performance and Aging Strength Degradation Mechanism of SBS Modified Asphalt with Different Anti-Aging Additive." Materials 16, no. 13 (2023): 4881. http://dx.doi.org/10.3390/ma16134881.

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After aging, the adhesiveness of asphalt deteriorates, leading to a reduction in the durability of asphalt mixtures and affecting the service life of asphalt pavements. To enhance the anti-aging performance of asphalt, this study employed the method of melt blending to prepare three types of modified asphalt: graphene/SBS modified asphalt (G/SBSMA), crumb rubber/SBS modified asphalt (CR/SBSMA), and petroleum resin/SBS modified asphalt (PR/SBSMA). Different dosages of the three types of modified asphalt were tested for changes in conventional performance indicators. The optimal dosages of graph

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Pospelov, Boris, Vladimir Andronov, Olekcii Krainiukov, et al. "Modifying the method for forecasting hazardous processes with unknown dynamics in the presence of noise." Eastern-European Journal of Enterprise Technologies 1, no. 4 (115) (2022): 29–36. http://dx.doi.org/10.15587/1729-4061.2022.252076.

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This paper has substantiated a modified method that, within the framework of the adaptive zero-order Brown’s model, provides for increased accuracy in predicting processes with unknown dynamics masked by the noise of various levels. The forecasting method modification essentially involves an adaptive technique for determining the weight of the correction of the previous forecast, taking into consideration the recurrent state of the predicted process in time. To investigate the accuracy of the forecasting method, a test model of the process dynamics was determined in the form of a rectangular p

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Rohayzi, Nurul Farhana, Herda Yati Binti Katman, Mohd Rasdan Ibrahim, Shuhairy Norhisham, and Noorhazlinda Abd Rahman. "Potential Additives in Natural Rubber-Modified Bitumen: A Review." Polymers 15, no. 8 (2023): 1951. http://dx.doi.org/10.3390/polym15081951.

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Conventional bitumen pavement is no longer suitable for handling increasing loads and weather variations, which cause road deterioration, Thus, the modification of bitumen has been suggested to counter this issue. This study provides a detailed assessment of various additives for modifying natural rubber-modified bitumen used in road construction. This work will focus on the use of additives with cup lump natural rubber (CLNR), which has recently started to gain attention among researchers, especially in rubber-producing countries such as Malaysia, Thailand and Indonesia. Furthermore, this pap

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Ji, Hua, Fue-Sang Lien, and Eugene Yee. "Parallel Adaptive Mesh Refinement Combined with Additive Multigrid for the Efficient Solution of the Poisson Equation." ISRN Applied Mathematics 2012 (March 12, 2012): 1–24. http://dx.doi.org/10.5402/2012/246491.

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Three different speed-up methods (viz., additive multigrid method, adaptive mesh refinement (AMR), and parallelization) have been combined in order to provide a highly efficient parallel solver for the Poisson equation. Rather than using an ordinary tree data structure to organize the information on the adaptive Cartesian mesh, a modified form of the fully threaded tree (FTT) data structure is used. The Hilbert space-filling curve (SFC) approach has been adopted for dynamic grid partitioning (resulting in a partitioning that is near optimal with respect to load balancing on a parallel computat

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Kulyashova, Irina N., Natalia V. Ermolaeva, and Anastasia D. Afonina. "COMPLEX ACTION REAGENT BASED ON MODIFIED SODIUM LIGNOSULFONATE FOR DRILLING FLUIDS." Oil and Gas Business, no. 6 (December 17, 2024): 173–89. https://doi.org/10.17122/ogbus-2024-6-173-189.

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The article investigates the possibility of obtaining a reagent based on sodium lignosulfonate modified with a synthesized additive based on acrylamide, formalin and citric acid. The composition of an experimental modifying additive to a lignosulfonate drilling reagent has been studied by high-performance liquid chromatography. The effectiveness of lignosulfonate modification with a synthesized modifier was established based on the results of a comparative analysis of the surface tension parameters of the studied samples by the stalagmometric method of droplet counting. The effect of the elect

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Pan, Zezhou, Feng Liu, Huawei Li, et al. "Performance Evaluation of Thermal Insulation Rubberized Mortar Modified by Fly Ash and Glass Fiber." Buildings 14, no. 1 (2024): 221. http://dx.doi.org/10.3390/buildings14010221.

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The utilization of waste rubber as a viable option for manufacturing building materials holds great significance for the sustainable development of the construction industry. This study explores the addition of two additives, fly ash (FA) and glass fiber (GF), to rubberized mortar in order to improve its performance. The impact of different waste rubber powder (RP) replacement rates and modified additive dosages on the performance of rubberized mortar, including fluidity, mechanical properties, drying shrinkage, impact resistance, and thermal insulation properties, was investigated. Furthermor

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Abed, Alaa Hussein, and Ali Hwaidi Nasser. "Assessment Mixing and Compaction Temperatures for Modified HMA Using Superpave High Shear Viscosity Methods." Al-Nahrain Journal for Engineering Sciences 21, no. 4 (2018): 516–22. http://dx.doi.org/10.29194/njes.21040516.

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The objective of this study is determining the mixing and compaction temperature of the modified asphalt mixture. Results of binder tests showed that the addition of 3% SBS to control asphalt (PG 64-16) would achieve the desired performance level (PG 76-16) a performance grade that fits our climate with traffic loads. When using 5% SBS the performance grade of binder increased three grades (PG 82-16) and when increasing SBS content to 8% the performance grade increased four grades (PG 88-16). At shear rate of 500 (s-1), the modified asphalt viscosity can be obtained at different temperatures a

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Lu, Haiwei, Kirk Mutafopulos, John A. Heyman, et al. "Rapid additive-free bacteria lysis using traveling surface acoustic waves in microfluidic channels." Lab on a Chip 19, no. 24 (2019): 4064–70. http://dx.doi.org/10.1039/c9lc00656g.

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We introduce a microfluidic device that uses traveling surface acoustic waves to lyse bacteria with high efficiency. This lysis method should be applicable to a wide range of bacteria species and can be modified to analyze individual bacteria cells.

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Zhang, Yi, Shengfei Yu, and Wusheng Luo. "Preparation and characterization of nanocellulose coating modified by titanium dioxide." BioResources 17, no. 1 (2021): 504–18. http://dx.doi.org/10.15376/biores.17.1.504-518.

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The hydrophilic character of cellulose nanowhiskers (CNWs) coating was changed by the use of TiO2 to modify CNWs, thus preparing TiO2/CNWs coating by a two-step method. Meanwhile, the effect of the additive amount and particle size of TiO2 on the surface structure and water contact angle (WCA) of the coatings was studied. The solid contents of the suspension were characterized by Fourier infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD). The TiO2/CNWs coating was characterized via scanning electron microscopy (SEM) and atomic force microscopy (AF

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Arahman, Nasrul, Afrilia Fahrina, Mukramah Yusuf Wahab, and Umi Fathanah. "Morphology and performance of polyvinyl chloride membrane modified with Pluronic F127." F1000Research 7 (June 12, 2018): 726. http://dx.doi.org/10.12688/f1000research.15077.1.

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Background: Attempts to modify the morphology of membrane for application in industrial separation are being undertaken by many researchers. The present study discusses the morphological modification of polyvinyl chloride (PVC) membrane by combining the hydrophilic surfactant Pluronic F127 (PF127) in a polymer solution to improve the performance of the membrane. Method: The membrane is formed using the non-solvent induced-phase separation (NIPS) method. PF127 is added to the membrane solution as a membrane modifying agent. The effects of the surfactant concentration in the dope solution on the

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Arahman, Nasrul, Afrilia Fahrina, Mukramah Yusuf Wahab, and Umi Fathanah. "Morphology and performance of polyvinyl chloride membrane modified with Pluronic F127." F1000Research 7 (July 10, 2018): 726. http://dx.doi.org/10.12688/f1000research.15077.2.

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Background: Attempts to modify the morphology of membrane for application in industrial separation are being undertaken by many researchers. The present study discusses the morphological modification of polyvinyl chloride (PVC) membrane by combining the hydrophilic surfactant Pluronic F127 (PF127) in a polymer solution to improve the performance of the membrane. Method: The membrane is formed using the non-solvent induced-phase separation (NIPS) method. PF127 is added to the membrane solution as a membrane modifying agent. The effects of the surfactant concentration in the dope solution on the

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Pietrzyk, Bożena, Katarzyna Porębska, Witold Jakubowski, and Sebastian Miszczak. "Antibacterial Properties of Zn Doped Hydrophobic SiO2 Coatings Produced by Sol-Gel Method." Coatings 9, no. 6 (2019): 362. http://dx.doi.org/10.3390/coatings9060362.

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Bacteria existing on the surfaces of various materials can be both a source of infection and an obstacle to the proper functioning of structures. Increased resistance to colonization by microorganisms can be obtained by applying antibacterial coatings. This paper describes the influence of surface wettability and amount of antibacterial additive (Zn) on bacteria settlement on modified SiO2-based coatings. The coatings were made by sol-gel method. The sols were prepared on the basis of tetraethoxysilane (TEOS), modified with methyltrimethoxysilane (MTMS), hexamethyldisilazane (HMDS) and the add

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Paulava, Inessa. "Properties of basalt fiber sulfo-aluminate modified cement binders." E3S Web of Conferences 212 (2020): 02011. http://dx.doi.org/10.1051/e3sconf/202021202011.

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The present paper considers the influence of basalt fiber method of addicting in to self-stressing concrete, modified by sulfoaluminate type expansive additive, on main properties of concrete. The use of basalt fiber and expansive additive together allows to obtain a composite with optimal structure and high-quality properties. The combined application allows to achieve several effects such as filling effect, pozzolanic effect and dispersed reinforcement effect (due to chaotic fiber distribution in the concrete composite structure and needle-shaped crystal of ettringite micro reinforcement). U

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