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5581
SPECTRUM AND KINETICS OF DIBROMDIBENZOTIOFEN PHOSPHORESCENCE IN N-HEXANES AT 77 K
Published 2022-09-01“…The existence of the three types of radiating centers is supported by different efficiency of quenching their phosphorescence in the presence of acenaphthene, which is energy acceptor triplet excitations and is supported by the dependence of the intensity distribution between the components of the multiplet on the exitation method.…”
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5582
Active-Margin Transmission Power Control for Wireless Sensor Networks
Published 2014-05-01“…The transmission power is determined by the EMDS and active margin to improve the efficiency of the communication. …”
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5583
Discussion on Matrix Interference in Trace-Level Bromate Detection of Natural Mineral Water in Southwest China Karst Area
Published 2025-05-01“…The correlation coefficient of method IC-CDⅠ was 0.9993. The RSD of method IC-CDⅡ was 0.42%−0.76% and the recovery rate was 94.5%−102.7%. …”
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5584
Optimization of large-diameter deep-hole stope blasting technology based on numerical simulation: a case study of the Dongguashan copper mine
Published 2025-05-01“…First, by comparing stress wave distributions and peak pressures for boreholes of different diameters, and analyzing crater formation patterns for different row and borehole spacing configurations, the optimal borehole net-work parameters for 165 mm boreholes with non-coupled charge structures were determined. Subsequently, edge-hole blasting models were developed using radial non-coupled and axial spaced charge methods under different blasting schemes. …”
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5585
Effectiveness Assessment of Energy-Saving System of Organized Supply and Exhaust Ventilation for Multi-Storey Buildings with Low Level Thermal Protection
Published 2022-04-01“…For the ventilation system under consideration, it has been established that the thermal resistance of the building envelope influences the indicators of the thermodynamic and economic efficiency of the proposed solution. The climatic conditions under which the utilization of the exhaust air heat in the proposed ventilation system is technically justified and economically expedient have been determined. …”
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5586
THE EVALUATION OF CURRENT RESEARCH ON THE STRENGTH OF DENTAL RESTORATIVE COMPOSITE MATERIALS
Published 2022-06-01“…It enables in detecting initial changes in the material structure, the initial location of defects, the direction of their spreading and determining the maximum strength of the material. The advantages of this method include the ability to obtain information about the destruction in the early stages, its high accuracy and sensitivitys. …”
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5587
渐开线齿轮反馈式稳健优化设计方法
Published 2014-01-01“…Aiming at the problems in the process of robust optimization design of involute gear,such as determining the dynamic load coefficient and multi-parameter nonlinear coupling,a method of dynamic load coefficient modified calculation is proposed.Through sovling the relative gain matrix between design parameter,the coupling relationship between the design parameter is reflected.Combining the optimization method of robust optimization design method,the feedback optimization design method of involute gear is put forward.This method not only improves the robustness of traditional optimization algorithm,but also reduces the difficulty to determine optimization parameters in the process of robust optimization design.By comparing the instance,gear parts,which designed by feedback robust optimization design method,can still maintain good quality of tooth contact and dynamic performance in the time variant situation.A new way of involute gear optimization design is provided.…”
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5588
Unveiling the Texture Secrets of <i>Morchella</i> Germplasm: Advanced Grading and Quality Assessment Through Texture Profile Analysis (TPA)
Published 2025-01-01“…By comparing three different methods, the ‘probability grading method’ was determined to be the most suitable evaluation method for the texture quality characteristics of <i>Morchella</i>. …”
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5589
Research On Calculation of Longitudinal Deformation of The Underlying Shield Tunnel Caused By Excavation of The Foundation Pit Considering Consolidation Effects
Published 2025-01-01“…However, accounting for the reduction in permeability due to grouting reinforcement measures, the final adopted value for the permeability coefficient was 0.001 5 m/day.Results and Discussions The comparative analysis demonstrates close agreement between the proposed analytical method and finite element simulations across different time scales. …”
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5590
Competitive evaluation and multi-stage planning of park integrated energy systems
Published 2025-03-01“…Abstract Optimal planning for the park integrated energy system (PIES) is essential for energy efficiency improvement and carbon neutrality. A reasonable evaluation method is the key to guide PIES planning. …”
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5591
Dangerous attack paths analysis for power networks based on adaptive limited depth search and improved Z-score pruning
Published 2024-12-01“…Aiming at the problems of low efficiency of attack path search in a large-scale power system, a dangerous attack path search analysis method is proposed, which searches the dangerous attack path in the attack graph of the node threat value quantification to realize the security analysis in the power system. …”
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5592
Preventive-Corrective Control for Static Voltage Stability Under Multiple <tex>$N-1$</tex> Contingencies Considering Wind Power Uncertainty
Published 2025-01-01“…In each iteration, the approximate expressions and range are determined by the generated data samples. Moreover, a fast approximation calculation method of second-order matrices is proposed. …”
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5593
Detection of Escherichia coli Using Loop-Mediated Isothermal Amplification for a Novel Air Sampling System
Published 2025-04-01“…Methods The system incorporates an air sampler with a cutting-edge nucleic acid amplification method known as loop-mediated isothermal amplification to detect bacterial pathogens precisely and efficiently. …”
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5594
Application of dynamic mechanical analysis to study the viscoelastic properties of deciduous wood species using Tilia cordata and Betula pendula as examples
Published 2025-01-01“…This paper presents the results of experimental studies using the dynamic mechanical analysis method of elastic (storage) moduli E’, dispersion (loss) modulus E’’ and mechanical loss coefficient tgδ of wood of such common deciduous tree species Tilia cordata and Betula pendula. …”
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5595
Effects of Mathematical Games Strategy on the Achievement of Students in High School Geometry
Published 2013-01-01“…The test underwent a series of steps of validation and later on the reliability coefficient was determined at 0.91 using the KR20. The study found that the students who were exposed to mathematical games strategy obtained higher achievement scores compared to students taught using the traditional method. …”
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5596
Characterization of Morphological and Optical Properties of MgO:SnO2 Nanostructure Thin Films
Published 2024-10-01“…The optical properties of the MgO: SnO2 films have been investigated as a function of MgO and the bandgap energy was estimated to be in the range of (3.5- 3.1) eV, The refractive index and extinction coefficient of the films were also determined, and the results indicated that the films had good transparency in the visible region. …”
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5597
Study of Antenna Superstrates Using Metamaterials for Directivity Enhancement Based on Fabry-Perot Resonant Cavity
Published 2013-01-01“…Metamaterial superstrate is a significant method to obtain high directivity of one or a few antennas. …”
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5598
SIMPLIFIED CALCULATION OF MESHING STRENGTH OF FACE GEAR PAIR (MT)
Published 2023-01-01“…The tooth thickness at the dangerous section of gear teeth was determined by the 30° tangent method, and the stress calculation coefficient table was given based on the expression of basic parameters of gear pair, finally, the analytical calculation formula of tooth root bending stress was deduced. …”
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5599
Unboxing Okun’s Relation Between Economic Growth and Unemployment Rate: Evidence from the United States, 1948–2024
Published 2025-02-01“…We develop the first disaggregation of Okun’s law that quantifies all of the information that is subsumed within its coefficients. The proposed method decomposes the coefficients into the sum of the direct effect of the change in output upon the unemployment rate, plus the indirect effects of the variations in the output per hour worked, the hours worked per employed person, the participation rate, and the size of the working-age population. …”
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5600
COMMUNICATION OF NAD- AND NADP-DEPENDENT DEHYDROGENASE ACTIVITIES IN LYMPHOCYTES WITH OUTCOME OF PREVALENCE PURULENT PERITONITIS
Published 2014-10-01“…Enzyme activity in blood lymphocytes was determined by bioluminescent method. Found that patients with a poor outcome of WPP in blood lymphocytes made more pronounced reaction of lipid anabolism and catabolism of xenobiotics. …”
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