Methods for Predicting the Costs of Maintaining Nuclear Heritage Facilities in а Safe State by D. F. Iliasov, A. Y. Ivanov, E. O. Kuznetsova

“…In the research there was developed the methodology of isolation from the overall structure costs, associated with maintaining shutdown facilities and storage facilities for radioactive waste of nuclear industry enterprises. …”
Get full text

Pulsed Laser Deposition Method Used to Grow SiC Nanostructure on Porous Silicon Substrate: Synthesis and Optical Investigation for UV-Vis Photodetector Fabrication by Reem Alzubaidi, Makram A. Fakhri, László Pohl

“…X-ray diffraction (XRD) analysis was performed on the crystalline structure of SiC and showed high-intensity peaks at the (111) and (220) planes, indicating that the substrate–film interaction is substantial. …”
Get full text

Delta Modulation Technique and Harmonic Analysis for the Modified Quadruple-Diode Boost Regulator Without and With a Voltage Multiplier Unit (VMU) by Walid Emar, Ahmad Aljanaideh, Ala Jaber, Mohammad Musleh, Ali Emar, Mohammed Al-Nairat

“…Finally, to validate the theoretical analysis and simulation results of the proposed QDBC structure, a 250 W regulator prototype was built utilizing similar design exercise requirements.…”
Get full text

Design of CMOS Charge-sensitive Amplifier for Coaxial High Purity Germanium Detector by LIU Zhan, HE Gaokui, LIU Haifeng

“…To address this, the input transistor was designed using an optimized noise model, iterative simulations, and a specially engineered layout structure to ensure low noise. However, larger transistor sizes can lead to gate leakage currents, which can alter the baseline of the amplifier output. …”
Get full text

Stability Analysis and Static–Dynamic Characterization of Subminiature Two-Dimensional (2D) Electro-Hydraulic Servo Valves by Lei Pan, Quanchao Dai, Zhankai Song, Chengtao Zhu, Sheng Li

“…Meanwhile, a high-power-density brushless DC motor (BLDC) is adopted as the electro-mechanical converter to further reduce the volume and mass. Firstly, the structure and working principle of the two-dimensional (2D) servo valve are described, and the mathematical model of the electro-mechanical converter is established. …”
Get full text

Exploration of the Ignition Delay Time of RP-3 Fuel Using the Artificial Bee Colony Algorithm in a Machine Learning Framework by Wenbo Liu, Zhirui Liu, Hongan Ma

“…To improve training efficiency, the temperature feature was linearized using a 1000/T transformation. Based on 30 independent resampling trials, the CGD-ABC-BP model with a three-hidden-layer structure of [21 17 19] achieved strong performance on internal test data: R² = 0.994 ± 0.001, MAE = 0.04 ± 0.015, MAPE = 1.4 ± 0.05%, and RMSE = 0.07 ± 0.01. …”
Get full text

Dietary Fermented Rapeseed Meal During the Grower Period Affects Growth Performance, Intestinal Health, and Antioxidant Status in <i>Sansui</i> Ducks by Yulong Feng, Meijuan Li, Yuxi Lu, Chengcheng Tian, Yu Zhao, Jianwei Li, Zhiguo Wen, Yongwen Zhu

“…In conclusion, 15 or 20% dietary FRSM (3.25 or 4.34 µmol GLS/g diet) during the grower period in <i>Sansui</i> ducks decreased feed efficiency, disrupted hepatic antioxidant balance, and impaired intestinal morphology and structure. The FRSM inclusion of ≥15% (3.25 µmol glucosinolates/g) impaired feed efficiency and antioxidant activity, while the 20% FRSM (4.34 µmol glucosinolates/g) induced intestinal damage in the growing <i>Sansui</i> ducks.…”
Get full text

Wpływ Przepon Pośrednich na Stateczność Pręta Cienkościennego by A. Chudzikiewicz

“…As a result, an infinite system of homogeneous equations is obtained with the structure shown at Fig. 9. If there is no joint between the middle surface and the web, the unknowns R„ disappear. …”
Get full text

Simulating the Role of Biogeochemical Hotspots in Driving Nitrogen Export From Dryland Watersheds by Jianning Ren, Erin J. Hanan, Aral Greene, Christina Tague, Alexander H. Krichels, William D. Burke, Joshua P. Schimel, Peter M. Homyak

“…We then conducted a series of virtual experiments to understand how uncertainties in model structure and parameters influence N export to streams. …”
Get full text

Comparison of terrestrial exospheric hydrogen 3D distributions at solar minimum and maximum using TWINS Lyman-α observations by Jochen H. Zoennchen, Gonzalo Cucho-Padin, Gonzalo Cucho-Padin, Lara Waldrop, Hans J. Fahr

“…All models showed a high concentration of atomic H on the dayside and nightside near the Sun–Earth line, which determines a nose/geotail structure consistent with theoretical effects from the solar radiation pressure. …”
Get full text

A 1.2-V, 106.4-dB DR Discrete-Time Sigma-Delta Modulator With Feedback Adaptive Cascaded Integrator for Sensor Applications by Ghayur Hussain, Nguyen van Quang, Muhammad Basim, Chang Hyeon Kim, Nabeel Ahmad, Sung June Byun, Kang-Yoon Lee

“…A second-order discrete time modulator model was successfully fabricated using 0.13-<inline-formula> <tex-math notation="LaTeX">$\mu $ </tex-math></inline-formula>m CMOS technology. The structure exhibits an exceptional dynamic range (106.4dB) and 17.38-bit ENOB across 1.95 KHz bandwidth at 2 MHz sampling. …”
Get full text

Three-Tiered Controller for Obstacle Avoidance in a PV Panel-Powered Wheeled Mobile Robot: Considering Actuators and Power Electronics Stages by Erik Reyes-Reyes, Benjamin Natanael Santiago-Nogales, Ramon Silva-Ortigoza, Magdalena Marciano-Melchor, Jose Rafael Garcia-Sanchez, Angel Adrian Orta-Quintana, Gilberto Silva-Ortigoza, Hind Taud, Miguel Hernandez-Bolanos

“…The proposed controller incorporates the dynamics of the three key subsystems typically found in a wheeled mobile robot: The mechanical structure, actuators, and power electronics. At the highest tier, input-output linearization is combined with artificial potential fields. …”
Get full text

Mechanical damage evolution mechanism of coal injected with supercritical CO2 using Nanoindentation and XRD-EPMA technology by Baisheng NIE, Dan ZHAO, Peng LIU, Lei WANG, Dalin WANG, Qingyi TU, Jingtao YANG, Xiyang ZHU

“…In the process of ScCO2 solution leaching, the coal gradually changes from elastic deformation to plastic deformation, the nano indentation crack expands rapidly, the micro morphology of the coal surface is seriously damaged, and the creep deformation increases linearly. The dissolution reaction changes the pore structure and elastic-plastic transformation of coal, enhancing the discreteness of the nanoindentation load curve and causing an increase in the frequency of popping events. …”
Get full text

Meso-macro analysis of microwave-assisted double-indenter impact on rock-like materials by Peng WANG, Zhongwen YUE, Shengnan XU, Dan GAO, Meng REN, Akang LI, Weijun LIU

“…Given the constraints on explosives and in response to the national “dual carbon” strategic goals, a new method of microwave-assisted impact fragmentation of rock-like materials has broad prospects in hard-rock tunneling, concrete structure demolition, and other projects due to its environmental friendliness and strong rock-breaking capability. …”
Get full text

“Agent – Environment” Evolution Mechanism of Greenbelt from the Perspective of Complex Adaptive System: A Case Study of Beijing’s Greenbelts by Song LIU, Peiyu SHEN, Dizi LIU, Zhaocheng BAI

“…This research takes Beijing’s greenbelts (the first greenbelt and the second greenbelt) as an example to, according to the “bottom-up” research paradigm of complex adaptive system theory (CAS), depict the adaptation process of multiple agents to promote the evolution of the greenbelt system, and explore the evolution mechanism of greenbelt, so as to seek targeted solutions to optimize greenbelt planning and promote the implementation of greenbelt policies.MethodsBased on the theory of complex adaptive system, the characteristics of the greenbelt system are analyzed from the perspectives of basic characteristics, structural composition and adaptive mechanism. Taking Beijing’s greenbelts as an example, the evolution process of greenbelt is divided into different stages according to the degree of agent emergence, structure complexity and system maturity. …”
Get full text

First M87 Event Horizon Telescope Results. VII. Polarization of the Ring by The Event Horizon Telescope Collaboration, Kazunori Akiyama, Juan Carlos Algaba, Antxon Alberdi, Walter Alef, Richard Anantua, Keiichi Asada, Rebecca Azulay, Anne-Kathrin Baczko, David Ball, Mislav Baloković, John Barrett, Bradford A. Benson, Dan Bintley, Lindy Blackburn, Raymond Blundell, Wilfred Boland, Katherine L. Bouman, Geoffrey C. Bower, Hope Boyce, Michael Bremer, Christiaan D. Brinkerink, Roger Brissenden, Silke Britzen, Avery E. Broderick, Dominique Broguiere, Thomas Bronzwaer, Do-Young Byun, John E. Carlstrom, Andrew Chael, Chi-kwan Chan, Shami Chatterjee, Koushik Chatterjee, Ming-Tang Chen, Yongjun Chen, Paul M. Chesler, Ilje Cho, Pierre Christian, John E. Conway, James M. Cordes, Thomas M. Crawford, Geoffrey B. Crew, Alejandro Cruz-Osorio, Yuzhu Cui, Jordy Davelaar, Mariafelicia De Laurentis, Roger Deane, Jessica Dempsey, Gregory Desvignes, Jason Dexter, Sheperd S. Doeleman, Ralph P. Eatough, Heino Falcke, Joseph Farah, Vincent L. Fish, Ed Fomalont, H. Alyson Ford, Raquel Fraga-Encinas, William T. Freeman, Per Friberg, Christian M. Fromm, Antonio Fuentes, Peter Galison, Charles F. Gammie, Roberto García, Olivier Gentaz, Boris Georgiev, Ciriaco Goddi, Roman Gold, José L. Gómez, Arturo I. Gómez-Ruiz, Minfeng Gu, Mark Gurwell, Kazuhiro Hada, Daryl Haggard, Michael H. Hecht, Ronald Hesper, Luis C. Ho, Paul Ho, Mareki Honma, Chih-Wei L. Huang, Lei Huang, David H. Hughes, Shiro Ikeda, Makoto Inoue, Sara Issaoun, David J. James, Buell T. Jannuzi, Michael Janssen, Britton Jeter, Wu Jiang, Alejandra Jimenez-Rosales, Michael D. Johnson, Svetlana Jorstad, Taehyun Jung, Mansour Karami, Ramesh Karuppusamy, Tomohisa Kawashima, Garrett K. Keating, Mark Kettenis, Dong-Jin Kim, Jae-Young Kim, Jongsoo Kim, Junhan Kim, Motoki Kino, Jun Yi Koay, Yutaro Kofuji, Patrick M. Koch, Shoko Koyama, Michael Kramer, Carsten Kramer, Thomas P. Krichbaum, Cheng-Yu Kuo, Tod R. Lauer, Sang-Sung Lee, Aviad Levis, Yan-Rong Li, Zhiyuan Li, Michael Lindqvist, Rocco Lico, Greg Lindahl, Jun Liu, Kuo Liu, Elisabetta Liuzzo, Wen-Ping Lo, Andrei P. Lobanov, Laurent Loinard, Colin Lonsdale, Ru-Sen Lu, Nicholas R. MacDonald, Jirong Mao, Nicola Marchili, Sera Markoff, Daniel P. Marrone, Alan P. Marscher, Iván Martí-Vidal, Satoki Matsushita, Lynn D. Matthews, Lia Medeiros, Karl M. Menten, Izumi Mizuno, Yosuke Mizuno, James M. Moran, Kotaro Moriyama, Monika Moscibrodzka, Cornelia Müller, Gibwa Musoke, Alejandro Mus Mejías, Daniel Michalik, Andrew Nadolski, Hiroshi Nagai, Neil M. Nagar, Masanori Nakamura, Ramesh Narayan, Gopal Narayanan, Iniyan Natarajan, Antonios Nathanail, Joey Neilsen, Roberto Neri, Chunchong Ni, Aristeidis Noutsos, Michael A. Nowak, Hiroki Okino, Héctor Olivares, Gisela N. Ortiz-León, Tomoaki Oyama, Feryal Özel, Daniel C. M. Palumbo, Jongho Park, Nimesh Patel, Ue-Li Pen, Dominic W. Pesce, Vincent Piétu, Richard Plambeck, Aleksandar PopStefanija, Oliver Porth, Felix M. Pötzl, Ben Prather, Jorge A. Preciado-López, Dimitrios Psaltis, Hung-Yi Pu, Venkatessh Ramakrishnan, Ramprasad Rao, Mark G. Rawlings, Alexander W. Raymond, Luciano Rezzolla, Angelo Ricarte, Bart Ripperda, Freek Roelofs, Alan Rogers, Eduardo Ros, Mel Rose, Arash Roshanineshat, Helge Rottmann, Alan L. Roy, Chet Ruszczyk, Kazi L. J. Rygl, Salvador Sánchez, David Sánchez-Arguelles, Mahito Sasada, Tuomas Savolainen, F. Peter Schloerb, Karl-Friedrich Schuster, Lijing Shao, Zhiqiang Shen, Des Small, Bong Won Sohn, Jason SooHoo, He Sun, Fumie Tazaki, Alexandra J. Tetarenko, Paul Tiede, Remo P. J. Tilanus, Michael Titus, Kenji Toma, Pablo Torne, Tyler Trent, Efthalia Traianou, Sascha Trippe, Ilse van Bemmel, Huib Jan van Langevelde, Daniel R. van Rossum, Jan Wagner, Derek Ward-Thompson, John Wardle, Jonathan Weintroub, Norbert Wex, Robert Wharton, Maciek Wielgus, George N. Wong, Qingwen Wu, Doosoo Yoon, André Young, Ken Young, Ziri Younsi, Feng Yuan, Ye-Fei Yuan, J. Anton Zensus, Guang-Yao Zhao, Shan-Shan Zhao, The Event Horizon Telescope Collaboration

“…These 1.3 mm wavelength observations revealed a compact asymmetric ring-like source morphology. This structure originates from synchrotron emission produced by relativistic plasma located in the immediate vicinity of the black hole. …”
Get full text

Method for compensating multi-time measurement data of distribution network based on alternating minimization matrix completion combined with VMD-ARIMA-LSTM by Xiaodan Yu, Ruijia Jiang, Xiaolong Jin, Hongjie Jia, Yunfei Mu, Wei Wei, Wanxin Tang

“…However, the increasing complexity of network structure and the high installation cost of measurement equipment introduce operational challenges including state variability and measurement data incompleteness. …”
Get full text

Combined Behavior of Reinforced Concrete Out-of-Plane Parts Beams Encased with Steel Section by Hasan M. A. Albegmprli, Doaa T. Hashim, Muthanna A. N. Abbu

“…This research investigated and compared the structural behavior of reinforced concrete straight beams and beams made with out-of-plane parts. …”
Get full text

A Study on Vibration Characteristics and Stability of the Ambulance Nonlinear Damping System by Meng Yang, Xinxi Xu, Chen Su

“…Considering the impact of the nonlinear stiffness, a 2-DOF vibration model with cubic terms was established according to the structural feature and nonlinear behavior. Ignoring the impact of nonlinear terms, the system was linearly analyzed. …”
Get full text

ASSESSMENT OF CRITICAL BUTYRIC ACID CONCENTRATIONS IN FECES OF PATIENTS ON ENTERAL TUBE FEEDING IN INTENSIVE CARE UNITS by ALEKSANDR M. Zatevalov, VLADIMIR A. Aleshkin, EVGENIYA P. Sel'kova, TATYANA A. Grenkova

“…At the fecal butyric acid concentration of 2.2 mmol/g, a ratio of fecal levels of acetic, propionic, and butyric acids (C2:C3:C4) was 72:17:11, with a structural index of 0.56. Below fecal butyric acid concentration of 2.2 mmol/g, a proportion of acetic acid decreased linearly, with a decrease in structural index. …”
Get full text