1,523 research outputs found
HiPrompt: Few-Shot Biomedical Knowledge Fusion via Hierarchy-Oriented Prompting
No full textJiaying Lu, Jiaming Shen, Bo Xiong, Wenjing Ma, Steffen Staab, and Carl Yan
On Factors Affecting Industrial Development Growth RatesâA Discussion with Comrade Zhu Jiaming
No full textIn the past few months, the unabating high rate of industrial development has, in an acute fashion, presented to theoretical circles the question of how to view the current high growth rate. In his article published in the second issue of the >i>Forum of Young Economists>/i>, Comrade Zhu Jiaming declares that China "already has the preliminary material preconditions for high-speed growth," and that "since 1978, some indexes of economic growth have shown that the period of high-speed growth has already come." This author, however, holds that the problem cannot be explained by looking only at indexes of a few years, and that in order to determine whether or not China has entered a period of high-speed growth, it is necessary to analyze the factors that affect the rate of industrial development and the trend of their changes. The present article is written to invite comments and corrections by Comrade Zhu Jiaming and others.
sj-docx-3-tag-10.1177_17562848221101722 – Supplemental material for SARS-CoV-2-inactivated vaccine hesitancy and the safety in inflammatory bowel disease patients: a single-center study
No full textSupplemental material, sj-docx-3-tag-10.1177_17562848221101722 for SARS-CoV-2-inactivated vaccine hesitancy and the safety in inflammatory bowel disease patients: a single-center study by Yubin Cao, Jiaming Feng, Shihao Duan, Yi Yang and Yan Zhang in Therapeutic Advances in Gastroenterology</p
sj-docx-2-tag-10.1177_17562848221101722 – Supplemental material for SARS-CoV-2-inactivated vaccine hesitancy and the safety in inflammatory bowel disease patients: a single-center study
No full textSupplemental material, sj-docx-2-tag-10.1177_17562848221101722 for SARS-CoV-2-inactivated vaccine hesitancy and the safety in inflammatory bowel disease patients: a single-center study by Yubin Cao, Jiaming Feng, Shihao Duan, Yi Yang and Yan Zhang in Therapeutic Advances in Gastroenterology</p
sj-docx-1-tag-10.1177_17562848221101722 – Supplemental material for SARS-CoV-2-inactivated vaccine hesitancy and the safety in inflammatory bowel disease patients: a single-center study
No full textSupplemental material, sj-docx-1-tag-10.1177_17562848221101722 for SARS-CoV-2-inactivated vaccine hesitancy and the safety in inflammatory bowel disease patients: a single-center study by Yubin Cao, Jiaming Feng, Shihao Duan, Yi Yang and Yan Zhang in Therapeutic Advances in Gastroenterology</p
Floodplain hydrodynamics and connectivity in a natural compound channel during unsteady flow events
No full textThis study investigates the hydrodynamics features and the floodplain connectivity of a natural compound channel under unsteady flood conditions using a two-dimensional shallow water equation model and a Lagrangian particle tracking method. Two flood events in 2019 in the middle reach of the Ganjiang River in China were simulated. The results show that during the rising stage, flow first passed through the low-lying areas of the floodplain. The floodplain discharge ratio increased almost linearly with the depth ratio between the floodplain and main channel when the floodplain was not fully inundated. When the floodplain was fully inundated, a second linear relationship was found between the floodplain discharge ratio and depth ratio. During the falling stage, flow first moved back to the low-lying floodplain and main channel before fully receding from the floodplain. The sequence of peak velocity, discharge and stage in unsteady flow lee to higher velocities, lower depths, and shorter residence times during the rising limb compared to those in the falling limb at the same discharge. The threshold discharge for floodplain inundation was during the rising stage larger than during the falling stage. The shortest particle residence time was observed at the flood peak, while the residence time in the rising stage was longer than in the falling stage. The particle travel distance was similar at different stages. The exchange flux between the river and floodplain increased with inflow discharge following a power law relationship. The ratio of exchange flux to inflow discharge also increased with inflow discharge up to an upper limit of 65.5 %. Particle residence time was negatively correlated with discharge following a power law with a lower limit of 2630 s, while particle travel distance is positively correlated with discharge following a power law with an upper limit of 2325 m. These findings shed light on the complex hydrodynamic processes and connectivity patterns in natural compound channels during unsteady flood conditions
The effect of natural and engineered hydraulic conditions on river-floodplain connectivity using hydrodynamic modeling and particle tracking analysis
Get PDFHydraulic conditions and water resources management projects can significantly alter river-floodplain connectivity, which in turn can alter hydrologic and biogeochemical processes in river corridors. In this study, the hydrodynamics of river-floodplain connectivity under different flood conditions and the effect of the Nanchang Water Resources Project Group (NWRPG) in the middle branch of the Ganjang River were investigated using a combination of two-dimensional hydrodynamic simulations and particle tracking. The hydrodynamic model was calibrated and validated using data from several gauging stations and field measurements. Floods in the Ganjang River can be limited to the river itself (“River Flood”, flood with normal lake level) or further extended to the Poyang Lake (“Lake Flood”, flood with high lake level). The results show that compared with “River Flood” scenarios, “Lake Flood” scenarios increased the water level flooding a larger area. The flow velocity decreased and the residence time (RT) of particles increased. The particle travel distance (PTD) of “River Flood” was larger than that of “Lake Flood”. The larger the flood, the greater the transboundary flux between the river and the floodplain, and the shorter the RT and PTD. The effect of NWRPG was the permanent flooding of part of the river floodplain, causing some habitat loss. Due to the increase in discharge, the implementation of the NWRPG results in a shorter RT with a smaller standard deviation, which has little effect on the PTD distribution. These findings can facilitate river connectivity restoration efforts in the Ganjang River and also provide a reference for assessing the impact of barrage projects
A LightGBM-Based EEG Analysis Method for Driver Mental States Classification
Get PDFFatigue driving can easily lead to road traffic accidents and bring great harm to individuals and families. Recently, electroencephalography-
(EEG-) based physiological and brain activities for fatigue detection have been increasingly investigated.
However, how to find an effective method or model to timely and efficiently detect the mental states of drivers still remains a
challenge. In this paper, we combine common spatial pattern (CSP) and propose a light-weighted classifier, LightFD, which is
based on gradient boosting framework for EEG mental states identification. ,e comparable results with traditional classifiers,
such as support vector machine (SVM), convolutional neural network (CNN), gated recurrent unit (GRU), and large margin
nearest neighbor (LMNN), show that the proposed model could achieve better classification performance, as well as the decision
efficiency. Furthermore, we also test and validate that LightFD has better transfer learning performance in EEG classification of
driver mental states. In summary, our proposed LightFD classifier has better performance in real-time EEG mental state
prediction, and it is expected to have broad application prospects in practical brain-computer interaction (BCI)
Effect of bank slope and ambient groundwater discharge on hyporheic transport and biogeochemical reactions in a compound channel
No full textAs floodplains are inundated during floods in a compound channel, solutes in the surface water column reach the hyporheic zone and react with solutes upwelled from the groundwater. These biogeochemical reactive processes, such as aerobic respiration, nitrification, and denitrification, need more clarification. In this study, a 3D hydrodynamic model combined with a 2D groundwater and biogeochemical model was used to examine the influence of bank slope angle and ambient groundwater discharge on these processes. A denitrification zone was found under the interface between the main channel and the floodplain when the bank slope angle was 90°, while lower angles extended that zone horizontally. In addition, a lower bank angle decreased N entry into the streambed and enhanced nitrogen removal. A decrease in ambient groundwater had a negative impact on both aerobic respiration and denitrification. When the ambient groundwater discharge reached below abput 0.9 m/d, nitrification was dominant in the model domain, and the hyporheic zone turned into a NO3 source. The greatest removal efficiency, equal to 0.8, was attained at a discharge rate
of 0.5 m/d for ambient groundwater and a bank slope angle of 30°. The hyporheic zone should lose its ability to remove N when ambient groundwater discharges exceed 0.25 m/d and removal efficiency fluctuates by 0. In conclusion, our findings indicate that bank slope angle and ambient groundwater discharge have a substantial impact on solute transport and biogeochemical activities in the hyporheic zone of a compound channel
Illi Racecar: A small-scale platform for autonomous driving
Get PDFThis thesis proposes a safety-critical 1/10 scale autonomous driving platform called Illi Racecar. Sensors, including three cameras, A laser scanner, an inertial measurement unit (IMU), two encoders, and an E-stop button, were installed on the platform for environmental perception. Three levels of computer module were equipped for data processing and control. A servo motor and a DC motor with the Ackermann steering chassis were utilized for motion control. A self-designed PCB board was placed on the vehicle supporting the electronic system. The Illi Racecar was built based on a Real-Time Operating System (RTOS) with a high-low level controller framework. The new generation of Robot Operating System, ROS2, was installed on the main computer station with its real-time features to ensure the platform's reliability. A real-time Drive-by-Wire (DBW) control module with an industry-standard Controller Area Network (CAN) bus was implemented to replace the less reliable ROS serial communication interface. Based on the parameter of the Illi Racecar, two geometric path trackers, namely the Pure pursuit controller and the Stanley controller were simulated using Simulink. After the low-level control programming and sensing system calibration of the platform, real car tests were conducted based on the parameters tuned by the simulation. The program for the real car test was also built in Simulink and generated into C for faster development. After comparing the simulation results and the real car evaluation of different controllers, several factors that influenced the results were determined. The Illi Racecar was the first application of ROS2 on a 1/10 scale Ackermann steering platform and in using Simulink modeling for rapid control system prototyping.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-08-01The student, Jiaming Zhang, accepted the attached license on 2021-07-21 at 14:19.The student, Jiaming Zhang, submitted this Thesis for approval on 2021-07-21 at 14:25.This Thesis was approved for publication on 2021-07-22 at 14:45.DSpace SAF Submission Ingestion Package generated from Vireo submission #17038 on 2022-01-12 at 12:55:33Made available in DSpace on 2022-01-12T22:35:20Z (GMT). No. of bitstreams: 2
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Previous issue date: 2021-07-22Embargo set by: Seth Robbins for item 121147
Lift date: 2024-01-12T22:35:30Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemAuthor requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I Onl
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