Prediction of subway shield construction parameters based on multi-layer perceptron by LI Wenqian, WU Yunhuan, WU Jingye, CHEN Zhihuai, XIE Senlin, HU Anfeng

“…Shield construction technology has been widely used in subway construction, and reasonable prediction of shield tunneling parameters is of great practical significance for improving construction safety and reducing operational difficulties.Taking a section of the Hangzhou Airport Express Underpass Tunnel as the engineering background, this study uses the friction angle, cohesion force, compression modulus and heaviness of the soil layer within the diameter of the tunnel as well as the burial depth of the tunnel cover, the preset blade speed and propulsion speed of the shield machine as inputs, and the slurry volume, slurry pressure, soil discharge volume, total thrust force and blade torque during the shield construction as outputs, and establishes a prediction model of shield tunneling parameters based on a multi-layer perceptron.By comparing the predictive performance of the model under different combinations of hyper-parameters on the dataset, a suitable shield construction parameter prediction model is selected for the project.The model predictive effect is verified using the measured data, and the predicted values are consistent with the overall variation pattern of the measured data, with an average error within 20%.The established multi-layer perceptron model provides reasonable predictions with good accuracy and can be applied to predict shield tunneling parameters under the conditions of composite strata.…”
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In vitro allelopathic effect of aqueous extracts of sugarcane on germination parameters of wheat by Abdul Majeed, Zahir MUHAMMAD, Manzoor HUSSAIN, Habib AHMAD

“…Allelopathy – interactions among plants for resources along with competition – is a composite phenomenon which has spacious potentials of application in agriculture. …”
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Impact of Multiple Operating Parameters Interactions on Load Swing of Tower Cranes by Peijin Liu, Chong Zhao, Yu Sun, Xinhui Zhang

“…Finally, this paper gives the reasonable interval of operation parameters of a hoisting operation under the composite working condition, which provides a scientific basis and theoretical guidance for intelligent control of tower crane operation.…”
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Optimization of Parameters of Two-Beam Laser Twelding of Quartz Raw Materials by V. A. Emelyanov, E. B. Shershnev, Y. V. Nikitjuk, S. I. Sokolov, I. Y. Aushev

“…In the work, with the help of numerical simulation, the values of technological parameters are established, which provide effective two-beam laser cleaning of quartz raw materials. …”
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Optimisation of Malting Parameters for Quinoa and Barley: Application of Response Surface Methodology by Esther Tatenda Chawanda, Shepherd Manhokwe, Talknice Z. Jombo, Desmond T. Mugadza, Michael Njini, Pepukai Manjeru

“…Steeping time ranging from 12 to 48 hours and germination time ranging from 24 to 96 hours were designed using a central composite design (CCD). The kilning temperature for all malts was 65°C. …”
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Efficient and Accurate Calibration of Discrete Element Method Parameters for Black Beans by Xuezhen Wang, Qinghang Zhai, Shihao Zhang, Qianwen Li, Hanmi Zhou

“…Discrete element method (DEM) parameters of the BLB were determined by combining the Plackett–Burman Design test, the steepest ascent design test, and the central composite design test. …”
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Optimization of process parameters for cellulose nanocrystals derivative from coconut shell by Dennis O. Bichang’a, Isiaka O. Oladele

“…In the present study, optimization of process parameters for cellulose nanocrystals (CNCs) derived from coconut shell was carried out. …”
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The Structure and Physical Properties of Composites Formed from Molybdenum Sulfide by L.S. Yablon, I.М. Budzulyak, M.V. Karpets, V.V. Strelchuk, S.I. Budzulyak, I.P. Yaremiy, О.М. Hemiy, О.V. Morushko

“…It was found that the composite MoS2/C with increasing carbon content increases parameter of lattice с. …”
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Design optimization of pangolin inspired composites for enhanced energy absorption by Iman Karami Fath, Abbas Niknejad, Hadi Zare-Zardini

“…Lateral compressive loads were applied to composite specimens prepared using unsaturated isophthalic polyester resin. …”
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Blood pressure and spyroergometry parameter dynamics in young hypertensive males undergoing treadmill test by I. G. Fomina, V. V. Matveev, A. V. Lazarev, N. A. Galanina

“…Blood pressure (BP) and spyroergometry parameter dynamics was studied in young AH males during treadmill test. …”
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Evaluation of translucency of a nanofilled and a microhybrid resin composites by Fabiana Mezzaroba Ortenzi Graciano, João Tadeu Amin Graciano, Larissa Pincelli Chaves, Terezinha de Jesus Esteves Barata, Regina Guenka Palma-Dibb, Linda Wang

“…However as multiple layer technique have been applied, opalescence and translucency parameters are also significant to allow resin composite to match tooth structure. …”
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An Efficient Computational Algorithm for the Nonlocal Cahn–Hilliard Equation with a Space-Dependent Parameter by Zhengang Li, Xinpei Wu, Junseok Kim

“…In this article, we present a nonlocal Cahn–Hilliard (nCH) equation incorporating a space-dependent parameter to model microphase separation phenomena in diblock copolymers. …”
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Sustainability Design Considerations for Timber-Concrete Composite Floor Systems by Md Abdul Hamid Mirdad, Hossein Daneshvar, Thomas Joyce, Ying Hei Chui

“…However, serviceability issues such as vibration and deflection are limiting the construction of longer span timber-only floor systems and have encouraged the development of timber-concrete composite (TCC) systems. The use of concrete would negatively impact on the carbon footprint of the TCC floor system and should be minimized. …”
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Evaluation framework for the generation of continental bare surface reflectance composites by Paul Karlshoefer, Pablo d’Angelo, Jonas Eberle, Uta Heiden

“…Due to the importance of these model inputs, the quality of the surface reflectance composites (SRC) is essential. The quality depends on the precise selection of pixels that are free of green and dry vegetation, cloud contamination and other atmospheric disturbances.However, there is a lack of suitable concepts and tools to evaluate the impact of the diverse processing parameters for the generation of SRC, especially for large areas such as continents. …”
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Physicochemical characterization of two bulk fill composites at different depths by Guillermo Grazioli, Carlos Enrique Cuevas-Suárez, Leina Nakanishi, Alejandro Francia, Rafael Ratto de Moraes

“…ObjectivesThis study analyzed the physical-chemical behavior of 2 bulk fill resin composites (BFCs; Filtek Bulk Fill [FBF], and Tetric-N-Ceram Bulk Fill [TBF]) used in 2- and 4-mm increments and compared them with a conventional resin composite (Filtek Z250).Materials and MethodsFlexural strength and elastic modulus were evaluated by using a 3-point bending test. …”
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Quantitative Content Parameter in the Standardization of Veratrum Aqua, Veratrum Lobelianum Bernh. Based Drug by E. V. Melnik, M. V. Belova, I. A. Tyurin, G. V. Ramenskaya

“…Jervine content should be not lessthan 136 µg/ml». This parameter is to be determined by HPLC-DAD.…”
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Measuring of roundness after turning of composite material with natural fibers by D. Mital, J. Zajac, F. Botko, M. Hatala, Z. Mitalova, S. Radchenko, V. Ivanov

“…The article is based on practical requirements from the reason of unequally removed material during the turning of the wood plastic composite (WPC). This results in geometrical deviations of the WPC bar diameter. …”
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Parameter optimization for low-temperature catalytic pyrolysis in oil-based drilling cuttings treatment by HUANG Yaoqi, XIA Yufeng

“…The response surface methodology (RSM) model results indicate that the optimal treatment parameters are as follows: for 300 g of oil-based drill cuttings, a composite catalyst addition ratio of 4.417% (with a CA∶CC atio of 2∶1), a reaction temperature of 285.43 ℃, and a reaction time of 97.17 min, under which the oil content of the drill cuttings is reduced from 14.76% to 0.20%. …”
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Thermal Degradation of β-Carotene from Macauba Palm: Mathematical Modeling and Parameter Estimation by Pedro Prates Valério, Amanda Lemette Brandão, Jesus Maria Frias Celayeta, Erika Cristina Cren

“…Mass balance equations were numerically solved by a Backward Differentiation Formula technique. The kinetic parameters from both models were estimated through a hybrid optimisation method using the Particle Swarm Optimization and the Gauss-Newton method, followed by statistical analyses. …”
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Calibration and Testing of Discrete Element Simulation Parameters for Ultrasonic Vibration-Cutter-Soil Interaction Model by Yang Qiao, Shenghai Huang, Chengyi Yang, Songlin Liu, Kailun Wang, Yunpeng Lu, Jiasheng Wang

“…In order to reduce the interaction between calibration parameters and improve the calibration accuracy, it is proposed that the soil constitutive, contact parameters, and bonding parameters be calibrated by combining the soil repose angle experiment and the soil resistance experiment of ultrasonic vibration cutting. …”
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