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Neural Network Modeling Approach for Vehicle Lateral dynamics Using real Vehicle data

Journal of Institute of control, robotics and Systems 2024年第7期30卷 696-702页

作者： Kim, Kyeong Hyeon Jeong, Cheolmin Kim, Junghyun Lee, Sanghyuk Kang, Chang Mook Department of Electrical Engineering Incheon National University Korea Republic of R&D Control Unit RideFlux Korea Republic of

To control the lateral motion of autonomous vehicles, their precise lateral dynamics models are required. However, vehicles inherently exhibit nonlinear characteristics, and the model of a vehicle changes according to the driving conditions, which indicates that using a linearly approximated vehicle dynamics model may potentially degrade the control performance of the vehicle. Therefore, this study trains a neural network using driving logging data that contains the nonlinear characteristics and driving features of the vehicle and uses this neural network to estimate the lateral dynamics model of the vehicle. A highly trained neural network can effectively capture the nonlinear characteristics of the vehicle and effectively represent the model of the vehicle that changes according to the driving conditions. © ICrOS 2024.

关键词： Autonomous vehicles

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How effective are monthly departmental tracer surveys? A 5-year retrospective study of 138 surveys in 96 departments

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AMErICAN JOUrNAL OF INFECTION control 2024年第8期52卷 872-877页

作者： Kopuit, Puah Bier, Liora Abu-Gush, Samar Smadga, Hanna david, ruth Shraga, Tova dery, Ilana Ezagui, Bath Sheva Yinnon, Amos M. Benenson, Shmuel Shaare Zedek Med Ctr Infect Control & Prevent Unit Eisenberg R&D Author Jerusalem Israel Hebrew Univ Jerusalem Hadassah Hosp & Med Sch Med Sch Fac Med Jerusalem Israel

Background: repeat department-wide surveys are commonly employed for infection control. There remains debate concerning their cost-effectivess. The aim of the study was to measure the impact of repeat department-wide surveys in major in-patient departments (IPds) and ambulatory facilities (AFs) in a tertiary care hospital. This was a retrospective study of 138 surveys condcuted in 96 departments over a 5-year period. Methods: Two itemized questionnaires were designed to assess the most frequently inadequately adhered to infection control measures: one for IPd (with 21 items) and the other for AF (with 17 items). results: A total of 72 surveys were conducted in 49 IPds, of which 39 (54%) were repeat surveys, and 66 surveys in 47 AFs, of which 33 (50%) were repeat surveys. The baseline rate of adherence/department was 71% +/- 14 for the IPd, with an increase from the first to the last survey to 82% +/- 13 (P = .037). In 15/21 measured infection control items, adherence improved. Adherence to infection control items was lower at baseline in the AFs than in the IPds (63 +/- 27), with an increase to 76 +/- 20 (non significant). Although adherence improved for 9 items, it deteriorated in another 8, producing an overall statistically unchanged outcome. Conclusion: repeat whole-department surveys contribute moderately to increased adherence to infection control guidelines. AFs demonstrate lower rates of adherence to infection control guidelines and are less receptive to educational measures. (c) 2024 Association for Professionals in Infection control and Epidemiology, Inc. Published by Elsevier Inc. All rights reserved.

关键词： Infection control Hospital epidemiology Infection control practitioners Infection control measures department-wide surveys Surveillance

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Ghost Net Entanglement of a Vulnerable Seahorse Hippocampus kelloggi (Teleostei;Syngnathidae) from dhamara Estuary, Bay of Bengal, India

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NATIONAL ACAdEMY SCIENCE LETTErS-INdIA 2024年 1-5页

作者： Mahapatro, debasish Mishra, Sangeeta Behera, rajaram Pati, Sharada Srinivas das Sharma, Satyabrata Mallick, Niranjan Murugesan, Kailasam State Pollut Control Board Cent Lab Coastal Management Cell R&D Wing 4th FloorPlot B-59-2&3Patia Bhubaneswar 751024 Odisha India State Pollut Control Board A-118Paribesh BhawanUnit 118 Bhubaneswar 751012 Odisha India

Present study describes entanglement of a sea horse Hippocampus kelloggi in discarded nylon fishing nets or "Ghost nets". This was observed during the routine sampling and monitoring program on 25th August 2021 in dhamara estuary, Bay of Bengal, Odisha. This specimen is different from other similar species having well developed coronate with five short spines, backward pointing rounded cheek spine;rounded eye spine;thick body rings;thick snout and narrow body. Ghost net entanglement imposes pressure to Hippocampus kelloggi which is under vulnerable (VU) category in the IUCN red List of Threatened Species. Therefore, it is decisive to initiate appropriate management steps to regulate the abandoned fishing nylon net in the coastal and marine ecosystem to protect the marine biodiversity.

关键词： Ghost net entanglement Hippocampus kelloggi dhamara estuary Conservation and management Bay of Bengal

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An improved control strategy for an industrial copper solvent extraction process

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SEPArATION SCIENCE ANd TECHNOLOGY 2022年第11期57卷 1745-1761页

作者： Shahcheraghi, Seyed Hadi Mousavi, Seyed Majid dianatpour, Mehdi Univ Kurdistan Fac Engn Dept Min Engn Sanandaj Iran Gohar Zamin Iron Ore Co Lab & Qual Control Unit Sirjan Iran Miduk Copper Complex Res & Dev Unit R&D Kerman Iran

In this paper, to solve the constraints and upgrade the control systems of industrial copper solvent extraction processes, an improved two-layer (optimization and stabilization) control strategy was proposed. The proposed control strategy is equipped with an advanced-step multistage nonlinear model predictive controller. It was successfully tested against simulated disturbances, noise and set point changes. Moreover, the proposed strategy was applied for an industrial process and the obtained results were compared to the plant control strategy and the latest proposed control strategy for industrial copper solvent extraction in the literature. With the proposed control strategy and the latest proposed control strategy in the literature, the production of the copper solvent extraction process was increased by almost 6% and 3%, respectively, compared to the plant control strategy, and the process variation was decreased by 90-92% and 80-85%, respectively.

关键词： Improved control strategy industrial copper solvent extraction optimal and robust control maximum copper production

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Crystal Growth Kinetics of an Industrial Active Pharmaceutical Ingredient: Implications of different representations of Supersaturation and Simultaneous Growth Mechanisms

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CrYSTAL GrOWTH & dESIGN 2021年第9期21卷 5403-5420页

作者： Quillo, Gustavo Lunardon Bhonsale, Satyajeet Gielen, Bjorn Van Impe, Jan F. Collas, Alain Xiouras, Christos Katholieke Univ Leuven Dept Chem Engn Chem & BioProc Technol & Control Fac Engn Technol B-9000 Ghent Belgium Janssen R&D Chem Proc R&D Crystallizat Technol Unit B-2340 Beerse Belgium

The crystal growth kinetics of a proprietary active pharmaceutical ingredient (API) was investigated by isothermal seeded batch de-supersaturation experiments in solvent mixtures using the "true" thermodynamic representation of the super-saturation driving force, which considers the activities of the saturated and supersaturated states. Three approaches to approximate the experimentally inaccessible activity coefficients of the supersaturated state were assessed, as well as the most common approximation, which omits the activity coefficients altogether. Subsequently, the supersaturation data from the different expressions were fed into a population balance model to estimate kinetic parameters for the empirical, Burton-Cabrera-Frank, and birth-and-spread growth models. The results demonstrate that the approach used to compute the supersaturation alters the estimated kinetic parameters significantly, having potentially serious implications for their physical interpretation and for extracting the physical properties they represent in lumped form. Moreover, including the chemical activities in the supersaturation leads to kinetic parameters with a tighter joint confidence interval and weaker parameter correlation that can better explain the experimental observation of the API growing appreciably only under higher antisolvent amounts. Finally, the simultaneous occurrence of multiple crystal growth mechanisms is investigated, concluding that the additive contribution of B+S and BCF best explains the supersaturation decay observed in the experiments for this API.

关键词： Crystals Supersaturation Crystallization Approximation Solubility

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research and modeling of tire cornering characteristics considering tread wear based on unitire model

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PrOCEEdINGS OF THE INSTITUTION OF MECHANICAL ENGINEErS PArT d-JOUrNAL OF AUTOMOBILE ENGINEErING 2022年第6期236卷 1155-1169页

作者： Lu, Lei Lu, dang Wu, Haidong Li, Lun Wang, Wei Lyu, Manyi Tsinghua Univ State Key Lab Automot Safety & Energy Beijing Peoples R China Jilin Univ State Key Lab Automot Simulat Control 5988 Remin St Changchun 130025 Jilin Peoples R China China FAW Grp Co LTD Gen R&D Inst Dept Expt Unit Changchun Jilin Peoples R China

In view of the complexity of tire structure and working conditions, tire models are often based on complete and accurate test data. In combined with the theory of tire dynamics, the empirical and semi-empirical tire models are built. In order to accurately measure the tire mechanical properties, it is necessary to strictly control the wear state of the tire tread during the tire test. But there is still a certain amount of wear, which does not guarantee the consistency of the data. In order to study the influence of wear on the mechanical properties of the tire, based on the tire footprint pressure distribution model and brush model theory, combined with the brush model theory and the rubber block shear stiffness deformation theory, the tire cornering stiffness model under different wear conditions is established. The footprint pressure distribution model is built based on the results of footprint test under different wear conditions. And combined the test result with different tread wear conditions and the theory of brush model, the tire brush model considering tread wear conditions is built. Based on the above theoretical model, the unitire tire cornering slip model considering the tread wear state is established. To verify the accuracy of the model, the unitire cornering slip model is obtained by using the cornering slip data in three tread wear states, and the tire mechanical properties of the other tread wear conditions are predicted. The error between the simulation results of the model and the experimental results is small, which effectively prove the predictive ability of unitire cornering slip model considering tread wear. This study will help to improve the unitire tire model and provide theoretical and technical support for the unitire indoor and outdoor expansion applications.

关键词： Tire dynamics tire wear cornering property brush tire model unitire model

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A Novel Protein-Polysaccharide Oral Nanoemulsion Targeting Activated Hepatic Stellate Cells to Enhance the Therapeutic Effect of Pirfenidone on Fibrosis After Transarterial Chemoembolization for Liver Cancer

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AdVANCEd FUNCTIONAL MATErIALS 2025年第24期35卷

作者： Cheng, Zhimei Xu, Shan Chen, Yi He, Huizhou Sun, runbin Jin, Xingle Huang, Cheneryu Zheng, Yuhao Peng, Jianqing Tang, Lei Luo, Peng Chen, Yi Zhang, Shuai Guizhou Med Univ Affiliated Hosp Dept Intervent Radiol Guiyang 550004 Peoples R China Guizhou Med Univ Guizhou Prov Engn Technol Res Ctr Chem Drug R&D Sch Pharmaceut Sci State Key Lab Discovery & Utilizat Funct Components Tradit Chinese Med Guiyang 561113 Peoples R China Nanjing Univ Nanjing Drum Tower Hosp Affiliated Hosp PhaseClin Trials Unit 1Med Sch Nanjing 210008 Peoples R China Guizhou Med Univ Key Lab Environm Pollut Monitoring & Dis Control Minist Educ Guiyang 561113 Peoples R China E‐mail:

Transarterial chemoembolization (TACE) is considered the main treatment for intermediate and advanced liver cancer. Nevertheless, TACE may aggravate liver fibrosis in these patients, which could affect the therapeutic effect after TACE. Pirfenidone (PFd) exhibits significant antifibrotic effects in the liver, primarily via inhibition of hepatic stellate cells (HSCs) activation. However, owing to the high dose required for effective treatment, oral administration of PFd is associated with several side effects. This study introduces an oral folic acid (FA)-modified protein-polysaccharide PFd nanoemulsion designed to treat post-TACE liver fibrosis via liver targeting. This novel PFd oral nanoemulsion withstands gastrointestinal digestion and ensures the gastrointestinal stability of PFd. Furthermore, this nanoemulsion improves the intestinal permeability and antifibrotic efficacy of PFd at a lower dose via folate receptors expressed on both intestinal epithelial cells and activated HSCs. In conclusion, this FA-modified protein-polysaccharide nanoemulsion presents a promising approach for oral PFd delivery to effectively ameliorate fibrosis after TACE for liver cancer.

关键词： folic acid liver fibrosis pirfenidone protein-polysaccharide transarterial chemoembolization

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Study on regional Power Spot Market Trading Mechanism of China Southern Grid to Promote Green Energy Consumption 2

Study on Regional Power Spot Market Trading Mechanism of Chi...

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2nd Asian Conference on Frontiers of Power and Energy (ACFPE)

作者： Zhang Jianzhong Tao Li Zhang Jiying Zhang Liang Yu Yun Corp Digital Res Inst Co Ltd China Southern Power Grid Mkt Measurement Business Unit Guangzhou Peoples R China Beijing Kedong Elect Power Control Syst Co Ltd Power Market Applicat Serv Business Dept Beijing Peoples R China Beijing Kedong Elect Power Control Syst Co Ltd Basic Platform R&D Dept Beijing Peoples R China

ISBN: (数字)9798350303896

ISBN: (纸本)9798350303896

As the country's only regional electricity spot market pilot, the southern regional electricity spot market needs to comprehensively consider the natural resource endowment of the East and west of the southern region, the supply and demand of provinces, and the complexity and realizability of the clearing model. From the perspective of combining scientific research with engineering practice, this paper first establishes the overall framework of regional power spot trading;Then the South Grid and provincial grid two-level scheduling joint transaction mechanism is designed;Finally, a regional spot clearing model considering the priority of new energy consumption is constructed to provide technical support for regional spot development.

关键词： regional spot new energy mechanism design clearing model

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Assessing and upgrading the cleanliness of the emergency department brief title: upgrading the emergency room's cleanliness

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INFECTION control & HOSPITAL EPIdEMIOLOGY 2025年第2期46卷 187-192页

作者： Levine, Elisheva Abo-Gush, Samar Ezagui, Bath Sheva david, ruth Kopuit, Puah Bagrish, Naama Zalut, Todd Assous, Marc V. Freier-dror, Yossi Yinnon, Amos M. Benenson, Shmuel Shaare Zedek Med Ctr Infect Control & Prevent Unit Jerusalem Israel Shaare Zedek Med Ctr Emergency Dept Jerusalem Israel Hebrew Univ Jerusalem Shaare Zedek Med Ctr Hadassah Med Sch Clin Microbiol Lab Jerusalem Israel Hebrew Univ Jerusalem Hadassah Med Sch Shaare Zedek Med Ctr Eisenberg R&D Author Jerusalem Israel Mashav Appl Res Jerusalem Israel

Objective: To upgrade cleaning and disinfection of patient rooms in a crowded emergency department (Ed). Setting: Tertiary referral hospital. design: Prospective, 3-component, before-and-after intervention study. Methods: Phase 1 consisted of a 4-week baseline determination of Ed patient-room cleanliness, using two means: (1) the fluorescence spray, applied before cleaning and assessed subsequently with an ultraviolet lamp. results are expressed as % of removed spots/all spots (>= 7/10 cleaned spots/room was considered clean;(2) ATP swabs obtained after cleaning, which test for presence of residual organic material;readings < 45 were considered clean. Phase 2 consisted of revision and reorganization of established cleaning practices. Phase 3 consisted of adding one cleaning person in afternoon/evening shifts, for 4-weeks, during which room cleanliness was assessed as previously described. results: Cleanliness of the 79 patient rooms, for which fluorescence tests were available from before and after cleaning for all three phases of the study, increased from a baseline of 50% +/- 35 removed spots/all spots, to 61% +/- 36 after the first intervention (CI95-0.6 - 21, P = 0.54) and to 68% +/- 35 after the second intervention (CI95 5- 31, P = 0.004, as compared to the baseline). Subanalysis showed that evening shifts improved most remarkably, from 47% +/- 32 (n = 45), to 60% +/- 33 (n = 49) to 76%+/- 29 (n = 29), respectively, from baseline through the second and third phase (P = 0.001). ATP testing appeared less sensitive for assessment of cleanliness but confirmed the assessment by fluorescence for overall cleanliness (CI95 1- 14, P = 0.018). Conclusions: Our data demonstrate that a two-step intervention significantly improves cleaning in a busy Ed.

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Applications of Artificial Intelligence and Machine Learning Algorithms to Crystallization

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CHEMICAL rEVIEWS 2022年第15期122卷 13006-13042页

作者： Xiouras, Christos Cameli, Fabio Quillo, Gustavo Lunardon Kavousanakis, Mihail E. Vlachos, dionisios G. Stefanidis, Georgios d. Univ Delaware Dept Chem & Biomol Engn Newark DE 19716 USA Janssen R&D Crystallizat Technol Unit Chem Proc R&D B-2340 Beerse Belgium Katholieke Univ Leuven Dept Chem Engn Fac Engn Technol Chem & BioProc Technol & Control B-9000 Ghent Belgium Natl Tech Univ Athens Sch Chem Engn Zografos 15780 Greece Univ Ghent Lab Chem Technol B-9052 Ghent Belgium

ABSTrACT: Artificial intelligence and specifically machine learning applications are nowadays used in a variety of scientific applications and cutting-edge technologies, where they have a transformative impact. Such an assembly of statistical and linear algebra methods making use of large data sets is becoming more and more integrated into chemistry and crystallization research workflows. This review aims to present, for the first time, a holistic overview of machine learning and cheminformatics applications as a novel, powerful means to accelerate the discovery of new crystal structures, predict key properties of organic crystalline materials, simulate, understand, and control the dynamics of complex crystallization process systems, as well as contribute to high throughput automation of chemical process development involving crystalline materials. We critically review the advances in these new, rapidly emerging research areas, raising awareness in issues such as the bridging of machine learning models with first-principles mechanistic models, data set size, structure, and quality, as well as the selection of appropriate descriptors. At the same time, we propose future research at the interface of applied mathematics, chemistry, and crystallography. Overall, this review aims to increase the adoption of such methods and tools by chemists and scientists across industry and academia.

关键词： Linear algebra

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