FAILURE ANALYSIS AND OPTIMIZATION OF A HIGH FREQUENCY VIBRATION TOOL by WANG Yong, CHEN Sheng, WANG Qi, ZHENG WeiHua, QIU JunGuang

“…The structure was improved by dynamic balance method, which effectively increased the operating frequency by balancing a part of mechanism inertial force and laid a theoretical foundation for the tool advanced optimization.…”
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Determination of Tungsten, Molybdenum and 5 Associated Elements in Tungsten-Molybdenum Ore by Inductively Coupled Plasma-Optical Emission Spectrometry with Direct Sintering by Zhou SONG, Yiping JI, Weihua WANG, Shaomin FANG, Jie YANG, Huoyan LUO, Yuqi ZHOU

“…It is insoluble in hydrochloric acid, nitric acid and aqua regia, and the alkali melting and mixed acid dissolution method was often selected for sample digestion. However, the matrix effect cause by the alkali melting method seriously affects the accuracy and detection limit of instrument testing; the acid dissolution method has low dissolution efficiency for tungsten, molybdenum and other insoluble elements, and requires a long time and a complex pretreatment process by using a variety of inorganic strong acids such as hydrofluoric acid and aqua regia, which can also cause damage to the analytical and testing instruments.OBJECTIVESTo develop a simple and efficient method for quantitative analysis of tungsten and molybdenum and its associated elements in tungsten-molybdenum ore.METHODSBased on alkaline melting and acid dissolution, a method was established by inductively coupled plasma-optical emission spectrometry (ICP-OES) with direct sintering and complex extraction of hydrochloric acid-phosphoric acid-citric acid. …”
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Stiffness analysis and structural optimization design of an air spring for ships by Yuqiang Cheng, Hua Gao, Jianguo Ma, Changgeng Shuai

“…The bellows stiffness is normally analyzed by virtue of equivalent simplification or numeric simulation. There is not an effective parameterization calculation model for the stiffness of the bellows, making it difficult to achieve the structural optimization design of the bellows. …”
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Enhancement of Photon Blockade Under the Joint Effect of Optical Parametric Amplification and Mechanical Squeezing by Yue Hao, Jia-Le Tong, Suying Bai, Shao-Xiong Wu, Cheng-Hua Bai

“…These enhanced nonlinear effects can significantly improve the photon blockade effect, effectively overcoming the limitations of weak coupling. …”
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Impacts of inter-train distances on aerodynamic drag reduction in heavy-haul train groups by LYU Jun, XIANG Tao, SONG Zongying, GAO Guangjun

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Optimization of 6-(trifluoromethyl)pyrimidine derivatives as TLR8 antagonists by Benedik Nika Strašek, Talagayev Valerij, Matziol Troy, Dolšak Ana, Sosič Izidor, Weindl Günther, Wolber Gerhard, Sova Matej

“…Compound 14 showed reduced cell viability at higher concentrations, while compound 26 showed no cytotoxic effects, making it a promising candidate for further investigation.…”
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Coordinated Optimal Scheduling of Source and Load in Integrated Energy System Considering Flexible Resources by Funian HU, Pengcheng ZHANG, Xiaobo ZHOU, Jun CHEN

“…A simulation analysis is carried out, and the simulation results show that the proposed optimal scheduling method can effectively improve the flexible adjustment ability of IES and the consumption level of renewable energy.…”
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Vibration Analysis and Optimal Control of Hydraulic Turbine Based on Sliding Mode Control Strategy by Xiaoping Huang, Yaqiong Zhang, Wenzhe Huang

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A study of eco-culture-tourism coupling and coordinated development and influencing mechanism in the Yellow River Basin based on spatial production theory by Mengyin Wang, Xiaotian Wang

“…The effective synergistic interaction among ecology, culture, and tourism in the Yellow River Basin significantly contributes to the realization of regional coordination and high-quality development. …”
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Numerical study on the surface evolution and flow dynamics in laser polishing of 100Cr6 steel based on the coupled capillary and thermocapillary flow by Chuqiao Fang, Wei Dai, Xiao Wu, Sijin Wang

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Low-Carbon-Economic Collaborative Optimal Dispatching of Microgrid Considering Electricity-Hydrogen Integration by Lingling TAN, Wei TANG, Dongqing CHU, Zihan YU, Xingquan JI, Yumin ZHANG

“…In order to solve the problem that microgrids lack accurate characterization of carbon emission flow, which leads to the increasing contradiction between the low-carbon operation mode and the economic operation mode in operation level and the poor balance between low-carbon and economy, this paper constructs an electricity-hydrogen integrated operation framework considering power to hydrogen (P2H) and and multi-energy coupling, and proposes a low-carbon - economic collaborative double-layer optimal dispatching model for microgrid considering carbon emission flow and low-carbon demand response. …”
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Spectrophotometric Method Combined with HPLC for Bisphenol F Determination in Plastic Bottled Water and Thermal Paper by Narjes Mohanad Habib, Maha Al-Tameemi, Mohanad Lateef Tofah, Nahlah Kadhim Salman, Hawraa Mahmood Abdulkareem

“…The experimental parameters were optimized such as type of alkaline medium, concentration of NaOH, diazotized metoclopramide amount, order additions, reaction time, temperature, and effect of organic solvents to achieve the optimal performance for the proposed method. …”
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Unsteady thermal convective transport of nanofluids with couple stress through a circular microchannel under the time-periodic pressure gradient and electromagnetohydrodynamic by Jiali Zhang, Guangpu Zhao, Umer Farooq, Jifeng Cui

“…The novelty of this study lies in providing a systematic theoretical analysis of the thermal convection mechanism of nanofluids with couple stress under complex flow conditions, especially under the effect of EMHD and time-periodic pressure gradients. …”
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Multi-objective Genetic Optimization of Ethane Thermal Cracking Reactor

“…The Pareto optimum set was obtained successfully and finally the effect of the decision variable was discussed.…”
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Process Optimization of Plasma Etching on the Size Reduction of Polystyrene Microspheres by SUN Shiyang, HUANG Shengbao, QIAN Yuanjin, LIU Dongkun, LI Jiabin, REN Yuan, ZHANG Wenxing

“…The inductively coupled plasma (ICP) etching technique，along with polystyrene (PS) microspheres as masks for etching technology，has been widely applied in the fabrication of silicon nanoarrays.However，the size reduction process of PS microspheres during etching is often accompanied by surface quality degradation.Additionally，the morphology of PS microspheres is influenced by multiple process parameters，making research challenging.To address these challenges，an orthogonal experimental method was employed to thoroughly investigate the process effects of the ICP process in the size reduction of PS microspheres with a particle size of 10 μm.Results showed that the gas composition had a significant impact on the etching effect，while the RF power exhibited positive correlations with both microsphere size reduction and surface roughness，pressure showed a negative correlation with microsphere surface roughness，and gas flow rate had negligible effects.Based on the above conclusions，the optimal process parameters were ultimately determined as follows:addition of 20%CF4 to O2，RF power 200 W-100 W (inductive power-DC bias power)，pressure 3.0 Pa，and gas flow rate 50 mL/min (O2 ∶CF4 flow ratio of 4 ∶1).Under the optimal process parameters，the surface roughness was minimized without compromising the etching reduction effect of PS microspheres.The highly linearized silicon nanoarrays with smooth outer surfaces were successfully fabricated using this optimized template.…”
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Review of Demand Response-based Optimal Scheduling of Electric and Thermal Integrated Energy Systems by Jingshan MO, Guangxian YAN, Na SONG, Mingyang YUAN

“…Demand response serves as an essential approach for the demand side to engage in grid stability coordination, improving the flexibility of the integrated energy system and compensating for the lack of system flexibility through demand-side synergistic optimization of the coupled and complementary forms of multi-energy. …”
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Novel gas-diffusion microextraction followed by gas chromatography coupled to tandem mass spectrometry methodology for the determination of fragrance allergens in cosmetic products by Ana Castiñeira-Landeira, Angel Gomez-Feas, Antonia M. Carro, Thierry Dagnac, Paulo J. Almeida, Maria Llompart

“…Subsequently, an experimental design was performed to evaluate the influence of six parameters: acceptor solution volume, acetonitrile percentage in the acceptor solution, sample dilution, salting-out effect, extraction time, and sample volume. Under the optimized conditions, the method was validated in terms of linearity, precision, trueness, obtaining a good performance. …”
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Excited State Structure and Decay Rates for Aggregates by Zhigang Shuai, Qi Sun, Jiajun Ren, Tong Jiang, Weitang Li

“…Here, we are going to summarize our recent progress on theoretical investigations on the effects of excitonic coupling (J) and the intermolecular charge transfer (CT) on the excited state structure and dynamic processes. …”
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Diabetes monitoring through digital health: perspectives on care optimization by Aline Alcantara de Freitas, Daiane Aparecida Dias, Mayra Heloise Weege, Ana Carolina Cintra Nunes Mafra, Bianca Augusta Pereira de Paula, Camila Nascimento Monteiro

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Credibility Copula-Based Robust Multistage Plan for Industrial Parks Under Exogenous and Endogenous Uncertainties by Zehao Shi, Jiajia Chen, Yanxin Wang, Yanlei Zhao, Bingyin Xu

“…Finally, the method transforms fuzzy chance constraints into deterministic robust optimization through clear equivalence classes. Simulation analyses using data from an industrial park validate the applicability and effectiveness of the proposed approach.…”
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