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2020 2nd International Conference on Computer Modeling, Simulation and Algorithm, CMSA 2020

作者： Chu, Zheyu Tan, Chao Tang, Xiuying Cheng, Bin College of Mechanical and Electrical Engineering Yunnan Agricultural University Kunming China Key Lab of Process Analysis and Control of Sicuan Universities Yibin University Yibin China College of Mechanics and Transportation Southwest Forestry University Kunming China

In order to solve the rising labor cost of cold storage management in China, and to improve the safety factor of cold storage, this paper designs a simple cold storage safety monitoring system. It is mainly to reflect the real-time monitoring information in the cold storage to the central background for unified processing, which not only reduces the harmful operations in the cold storage to save labor costs, but also improves the safety factor in the cold storage to reduce property losses. The monitoring system is fully automatic, which greatly reduces the staff's effort in cold storage management. © Published under licence by IOP Publishing Ltd.

关键词： Wages

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Study on quality influence of hot air drying and heat pump drying of Xiaocaoba Gastrodia elata 4

Study on quality influence of hot air drying and heat pump d...

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2020 4th International Conference on Electrical, Mechanical and Computer Engineering, ICEMCE 2020

作者： Cheng, Bin Tan, Chao Tang, Xiuying Chu, Zheyu Min, Jiabao Luo, Yinghua College of Mechanics and Transportation Southwest Forestry University Kunming China Key Lab of Process Analysis and Control of Sicuan Universities Yibin University Yibin China College of Mechanical and Electrical Engineering Yunnan Agricultural University Kunming China

This paper takes fresh gastrodia elata of Xiaocaoba as the research object. After the samples are steamed, two processing methods which are hot air drying and heat pump drying are used respectively. The drying temperature is set at 50 degrees for both methods. The results show that different weight gastrodia elata is suitable for different drying methods. The gastrodia elata of 70-105 grams is suitable dried by the hot air drying, while the gastrodia elata of 105-140 grams is better dried by the hot pump drying. The two drying methods had no effect on polysaccharides of samples. © 2020 Institute of Physics Publishing. All rights reserved.

关键词： Drying

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Highly Active and Stable Cuxfey/Ac-H Catalysts with Cufe2o4 for No Reduction by Co in the Presence of H2o and So2 Under Regeneration Gas

SSRN

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SSRN 2022年

作者： Xu, Zhicheng Li, Yuran Lin, Yuting Wang, Bin Wang, Qiang Zhu, Tingyu CAS Key Laboratory of Green Process and Engineering Institute of Process Engineering Innovation Academy for Green Manufacture Chinese Academy of Sciences Beijing100190 China Center for Excellence in Regional Atmospheric Environment Institute of Urban Environment Chinese Academy of Sciences Xiamen361021 China University of Chinese Academy of Sciences Beijing100049 China Beijing Key Lab for Source Control Technology of Water Pollution College of Environmental Science and Engineering Beijing Forestry University Beijing100083 China

For industrial flue gas, the synergistic removal of NOx and CO pollutants is in high demand but still has not been realized due to the presence of O2. We propose firstly that activated carbon regeneration gas provides suitable O2 -free conditions for NO reduction by CO, but high contents of 5% SO2 and 5% H2O affect the catalyst activity. Here, we report a bimetallic modified catalyst CuxFey/AC-H that exhibits high catalytic activity under the abovementioned conditions due to the high amount of CuFe2O4. By regulating the Cu/Fe ratio, the formation of CuFe2O4 active sites is promoted, which improves the redox properties, adsorption and activation capacity of NO, high valence metal ratio, and content of synergistic oxygen vacancies. Based on in situ DRIFTS and fixed-bed FTIR/MS combined platform, it was found that the side reaction of H2O with the intermediate of −NCO forms NH3 above 250 °C and with CO forms H 2 above 400 °C. NH3 and H2 provide additional reaction pathways of Fast-SCR and H2-SCR to significantly improve the reaction activity with 92.0% of NO conversion at 450 °C and 108,000 mL g -1 h -1 on Cu2Fe2/AC-H. According to DFT calculations, CuFe2O4 active sites provide the high binding energy of sulfation, and then Cu2Fe2/AC-H demonstrates excellent activity and long-term stability with 72.2% of NO conversion at high contents of SO2 and H2O for 48 h. And CuxFey/AC-H provides great potential prospects for the application of NO reduction by CO under activated carbon regeneration gas. © 2022, The Authors. All rights reserved.

关键词： Copper compounds

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Anaerobic Granular Sludge in Pilot Spiral Symmetry Stream Anaerobic Bioreactor: Its Physical and Chemical Properties Change Over Time and Space

SSRN

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SSRN 2023年

作者： Ren, Luotong Li, Gongsong Dong, Bin Wang, Zhenxi Xu, Sheng Chen, Siyu Danping, Huang Chen, Xiaoguang Shanghai Frontier Science Research Center for Modern Textiles College of Environmental Science and Engineering Donghua University Shanghai201620 China College of Environmental Science and Engineering Tongji University Shanghai200092 China College of Sciences Nanchang Institute of Technology Nanchang330099 China Sichuan Provincial Key Lab of Process Equipment and Control School of Mechanical Engineering Sichuan University of Science & Engineering Zigong643000 China

Anaerobic granular sludge determines the high performance of the bioreactor. Numerous factors can affect the activity of microorganisms in granular sludge. To study the regionalization of granular sludge in the bioreactor, we established a pilot Spiral Symmetry Stream Anaerobic Bioreactor (P-SSSAB) over 216 days, divided into three zones (I, II, and III) from bottom to top. The temperature is the major factor affecting microbial activity. The monitoring of bed temperature in various zones during 216 days revealed that the microbial activity in I was times and times that in II and III, respectively. The sludge at the bottom of the P-SSSAB had a higher porosity (60.35% ~ 83.27%) and more suitable settling velocity (60 m/h) when the particle size range was in 1.0 to 2.0 mm. This proves the better metabolic activity and more superior settling performance in I than in II and III. In addition, the elemental composition of the granular sludge in various zones were analyzed. The relative content of Fe (5.66%, 3.36%, and 1.38%, respectively) and S (2.47%, 2.19%, and 1.49%, respectively) in I, II, and III tended to decrease with the rising of the P-SSSAB. This also verifies the better mass transfer performance and operational stability at the bottom of the reactor than in the upper layer. © 2023, The Authors. All rights reserved.

关键词： Bioreactors

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Transformation of hydrological effect in Pisha sandstone area 3

Transformation of hydrological effect in Pisha sandstone are...

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3rd International Conference on Electron Device and Mechanical Engineering, ICEDME 2020

作者： Shen, Zhenzhou Yao, Wenyi Xiao, Peiqing Li, Mian Yang, Jishan Jing, Chengran Peng, Jiao Zhang, Pan Wang, Zhihui Hui, Liu Key Lab of Soil Water Loss Process and Control on the Loess Plateau of the MWR Yellow River Institute of Hydraulic Research Zhengzhou 450003 Yellow River basin ecological protection and high-quality development institute YRCC Zhengzhou 450003 Henan

ISBN: (纸本)9781728181455

The characteristics of raindrops in ordos city of Yellow River, including the speed and size of rainfall raindrops, they were analyzed through a natural rainfall on the sandstone slope of Pisa. The analysis results show that this time process of natural rainfall is very parabolic. We can see that with the increase of rainfall rainfall intensity, the count amount, size and terminal velocity of natural rainfall will increase greatly. In addition, the size and final velocity of natural raindrops are very scattered. In the process of rainfall, the final velocity is mainly concentrated in the range of 1.4-4.2m/s, and the peak of the rainfall final velocity is generally 2.2-3.4m/s. The rainfall mainly consists of 0. 125-1. 25mm raindrops. We can see also the final velocity of raindrops with a diameter of 0. 125mm was mainly between 1 and 1.4m/s, the final velocity of raindrops with a diameter of 0.25mm was mainly between 1.4 and 1.8m/s, the raindrop with a diameter of 0.375mm was mainly between 1.4 and 2. 2m/s, and the raindrop with a diameter of 0.5mm was mainly between 1.8 and 3.4 m/s. © 2020 IEEE.

关键词： Rain

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Targeted modulation of dual-metal ion homeostasis to induce ER stress and cuproptosis for synergistic breast tumor suppression

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Chemical Engineering Journal 2025年 515卷

作者： Zhang, Xiaoxian Zhang, Xuequan Zhu, Jiahui Li, Tinghua Yang, Lianyi Lei, Lei Wu, Fang He, Bin Cao, Jun National Engineering Research Center for Biomaterials College of Biomedical Engineering Sichuan University Chengdu610065 China Key Lab of Process Analysis and Control of Sichuan Universities Faculty of Materials and Chemical Engineering Yibin University Yibin644000 China

Targeted modulation of metal ion homeostasis in tumor cells has emerged as a promising method for cancer therapy. However, the coordination efficiency and stability of different metal ions posed significant challenges for current multi-metal ions delivery systems. In this study, we presented an innovative strategy that utilized a single-metal ion nanoregulator capable of precisely modulating intracellular dual-metal ion homeostasis. This nanoregulator induced endoplasmic reticulum (ER) stress and cuproptosis, which worked synergistically to inhibit tumor growth. Specifically, a calcium-selective chelator, BAPTA (BA), formed a metal coordination complex with copper ions (Cu2+), which remained stable in the physiological environment but disassembled upon internalized by tumor cells. Once inside, the released BA selectively chelated intracellular calcium ions (Ca2+), depleting ER Ca2+ stores and triggering ER stress. This stress activated the PERK/p-eIF2α/ATF4/CHOP apoptotic pathway, leading to tumor cell apoptosis. Meanwhile, Cu2+ induced cuproptosis and was reduced to Cu+ in the cytosol, where it consumed hydrogen peroxide and generated cytotoxic hydroxyl radicals. These radicals induced oxidative stress, which, combined with glutathione depletion, further amplified ER stress and promoted tumor cell apoptosis. Both in vitro and in vivo experiments exhibited that the nanoregulator effectively suppressed tumor growth through apoptosis and cuproptosis pathways, with favorable biocompatibility. This study highlighted the synergistic roles of copper and calcium ions in tumor therapy and introduced a novel strategy for modulating intracellular dual-metal ion homeostasis, offering more efficient and low toxicity anti-cancer treatments. © 2025 Elsevier B.V.

关键词： Stress analysis

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Distributed Online Convex Optimization with Time-Varying Constraints: Tighter Cumulative Constraint Violation Bounds under Slater's Condition

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IEEE Transactions on Automatic control 2025年

作者： Yi, Xinlei Li, Xiuxian Yang, Tao Xie, Lihua Hong, Yiguang Chai, Tianyou Johansson, Karl H. National Key Laboratory of Autonomous Intelligent Unmanned Systems Shanghai Institute of Intelligent Science and Technology China Ministry of Education Frontiers Science Center for Intelligent Autonomous Systems China Massachusetts Institute of Technology Lab for Information & Decision Systems CambridgeMA02139 United States Northeastern University State Key Laboratory of Synthetical Automation for Process Industries Shenyang110819 China Nanyang Technological University School of Electrical and Electronic Engineering 50 Nanyang Avenue 639798 Singapore Kth Royal Institute of Technology Division of Decision and Control Systems School of Electrical Engineering and Computer Science Sweden Digital Futures Stockholm10044 Sweden

This paper considers distributed online convex optimization with time-varying constraints. In this setting, a network of agents makes decisions at each round, and then only a portion of the loss function and a coordinate block of the constraint function are privately revealed to each agent. The loss and constraint functions are convex and can vary arbitrarily across rounds. The agents collaborate to minimize static network regret and network cumulative constraint violation. A novel distributed online algorithm with a vanishing stepsize is proposed and it achieves an O(Tmax {c,1-c}) static network regret bound and an O(T1-c/2) network cumulative constraint violation bound, where T is the number of rounds and c∈ (0,1) is a user-defined trade-off parameter. When Slater's condition holds (i.e, there is a point that strictly satisfies the inequality constraints), the network cumulative constraint violation bound is reduced to O(T1-c). Moreover, if the loss functions are strongly convex, then static network regret bound is reduced to O(log (T)), and the network cumulative constraint violation bound is reduced to O(√log (T)T) and O(log (T)) without and with Slater's condition, respectively. To the best of our knowledge, this paper is the first to achieve tighter (network) cumulative constraint violation bounds for (distributed) online convex optimization with time-varying constraints under Slater's condition. Finally, the theoretical results are verified through numerical simulations. © 1963-2012 IEEE.

关键词： Convex optimization

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Comparison research on X-ray image quality defects detection algorithm in semiconductor manufacturing

Comparison research on X-ray image quality defects detection...

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2019 IEEE International Conference on Smart Manufacturing, Industrial and Logistics Engineering, SMILE 2019

作者： Hou, Hongyu Wu, Feng Key Lab of the Ministry of Education for Process Control Efficiency Engineering School of Management xi'An Jiaotong University Xi'an China

ISBN: (纸本)9781538679982

Detecting product quality defects through image recognition technology is one of the key technologies of intelligent manufacturing, and also an important step for enterprises to construct smart factory. In the capsulation step of the semiconductor enterprise, the internal wire bonding of the chip is easily to receive the interference and to produce the defects. Companies need to pick out defective chips to avoid them going to the market. Traditional way is to use artificial vision visual inspection, which may lead to low efficiency and high labor cost. This study intends to use machine vision detection method based on image processing technology to identify the defect of the chip and to replace the workers artificial detection work. This paper proposes two algorithms to solve such above problems. The template matching algorithm (TMA) is to determine whether the chip is defective mainly based on the standard template. The neighborhood comparison algorithm (NCA) mainly calculates similarity of the neighbor chips to judge the target chip's defects. The algorithm is implemented by Halcon software. A German semiconductor company has provided enough samples to support our research. The experimental results show that the two algorithms are effective in defect detection of specific products. The advantage of the TMA lies in its processing speed, but the applicability and accuracy of NCA is more excellent. The algorithm proposed in this study can be used for enterprise by being integrated into the actual detection process. © 2019 IEEE.

关键词： Template matching

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Recovery of nickel in the form of Ni(OH)2 from plating wastewater containing Ni-EDTA using bipolar membrane electrodialysis

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CHEMOSPHERE 2023年 310卷

作者： Liu, Yaoxing Wu, Xiaoyu Dai, Liping Wu, Xiaoyun Ding, Jianguo Chen, Riyao Ding, Rui Liu, Jianxi Van der Bruggen, Bart Fujian Normal Univ Coll Environm & Resource Sci Coll Carbon Neutral Modern Ind Fujian Key Lab Pollut Control & Resource Reuse Fuzhou 350007 Fujian Peoples R China Fujian Chuanzheng Communicat Coll Sch Safety & Environm Fuzhou 350007 Fujian Peoples R China Katholieke Univ Leuven ProcESS Proc Engn Sustainable Syst Dept Chem Engn Celestijnenlaan 200F B-3001 Leuven Belgium Tshwane Univ Technol Fac Engn & Built Environm Private Bag X680 ZA-0001 Pretoria South Africa

Ni is often present in plating wastewater as a complexing state. It is difficult to remove this Ni using traditional chemical precipitation technology. In this study, a bipolar membrane electrodialysis system was used to recover Ni in the form of Ni(OH)(2) from plating wastewater containing Ni-ethylenediaminetetraacetic acid (Ni-EDTA) without adding chemical reagents. The stable structure of Ni-EDTA can be destroyed by H+ produced by the bipolar membrane to obtain free Ni2+, which can combine with OH produced by the bipolar membrane to form Ni(OH)(2). When the electrolyte Na2SO4 concentration, current density and initial Ni-EDTA concentration were 0.2 mol/L, 16 mA/cm(2) and 1000 mg/L, respectively, 99.0% of Ni-EDTA was removed after 32 h. When the system was used to treat actual plating wastewater, 92.1% of Ni-EDTA was removed and 88.7% was recovered. When the number of wastewater compartments in the system was increased from one to three, the current efficiency increased from 1.7% to 5.8%, and the specific energy consumption decreased from 0.39 to 0.19 kW h/g. The results of an X-ray diffraction study indicate that the Ni(OH) 2 obtained in this study is similar to commercial Ni(OH)(2). Moreover, the recovery mechanism of Ni-EDTA was analysed. Thus, bipolar membrane electrodialysis can be regarded as an effective method to recover Ni from wastewater containing Ni-EDTA.

关键词： Plating wastewater Ni-EDTA Bipolar membrane Electrodialysis Recovery

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Analysis and control of autonomous mobility-on-demand systems

arXiv

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arXiv 2021年

作者： Zardini, Gioele Lanzetti, Nicolas Pavone, Marco Frazzoli, Emilio Institute for Dynamic Systems and Control Department of Mechanical and Process Engineering ETH Zürich Zürich Switzerland Automatic Control Laboratory Department of Information Technology and ElectricalEngineering ETH Zürich Zürich Switzerland Autonomous Systems Lab Department of Aeronautics and Astronautics Stanford University StanfordCA United States

Challenged by urbanization and increasing travel needs, existing transportation systems need new mobility paradigms. In this article, we present the emerging concept of autonomous mobility-on-demand, whereby centrally orchestrated fleets of autonomous vehicles provide mobility service to customers. We provide a comprehensive review of methods and tools to model and solve problems related to autonomous mobility-on-demand systems. Specifically, we first identify problem settings for their analysis and control, from both operational and planning perspectives. We then review modeling aspects, including transportation networks, transportation demand, congestion, operational constraints, and interactions with existing infrastructure. Thereafter, we provide a systematic analysis of existing solution methods and performance metrics, highlighting trends and trade-offs. Finally, we present various directions for further research. © 2021, CC BY-NC-ND.

关键词： Autonomous vehicles

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