Yan Qing Li

Qilu Hospital of Shandong University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Xiu Li Zuo

Qilu Hospital of Shandong University

Cheng Zhu

Lawrence Livermore National Laboratory

Wei Tian

Nanjing University of Aeronautics and Astronautics

Zhen Li

Qilu Hospital of Shandong University

Hong Xia Zhang

Qilu University of Technology

Fei Long Wang

Southwest Hospital

Rui Ji

Qilu Hospital of Shandong University

Changqing Li

Qilu Hospital of Shandong University

Xiu Li Zuo

Qilu Hospital of Shandong University

Ming Ming Zhang

People's Liberation Army 401 Hospital

Cooperative Institutions

Qilu Hospital of Shandong University

Shandong University

Shanghai Jiao Tong University

North China Electric Power University

Chinese Academy of Medical Sciences & Peking Union Medical College

Peking University

Nanjing Medical University

Capital Medical University

Hebei Medical University

Sun Yat-sen University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

A Study on the Antibacterial Property of Fabrics with Silver-Plated Fibers

Advanced materials research (2011)

Hong Xia Zhang Yan Lu Cheng Zhu Wei Tian Yan Qing Li

To study the relationship between the content of silver-plated fibers in fabrics and the antibacterial performance of fabrics, five sets of samples with common polyester yarns and silver-plated polyamide yarns were manufactured for the experiment; a qualitative antibacterial test with flask-shaking method was performed and compared for fabrics with different content of silver-plated fibers. The results show that the fabrics with silver-plated fibers have good antibacterial effect, and the bacterial inhibition rate will be improved as the content of silver-plated fibers increasing. When the content of silver-plated fibers is 3.6%, the bacterial inhibition rate for coli form will reach to 76.92%, when the content of silver-plated fibers is higher than 11.99%, the fabrics have better antibacterial property for coli form and the bacterial inhibition rate is higher than 99%.

10.4028/www.scientific.net/amr.175-176.687

Cite

Citations (0)

Design of 3D Integrated Structure with Vertical Honeycombed-Core

Advanced materials research (2011)

Cheng Zhu Jia Ying Sun Yan Qing Li Wei Tian Qian Luo

In order to study the influences of fabric specification on vertical depth of honeycomb weaves, 11 kinds of honeycomb weaves fabric were designed in this paper by using different yarn linear density and weave repeat unit. The results show that the vertical depth of honeycomb weaves would increase as the yarn linear density increasing when the linear density was comparatively larger. With the increasing of weave repeat unit, vertical depth of honeycomb weaves is significantly increased. According to these results, 3D integrated vertical structure with honeycombed-core was designed, which used honeycomb weaves as the sandwich structure and plain weaves as the upside face and underside face. At the same time, the looming draft of this structure was drawn.

Honeycomb

Linear density

Honeycomb structure

10.4028/www.scientific.net/amr.332-334.985

Cite

Citations (0)

Evaluation of the performance of two neutral oral contrast agents in computed tomography enterography: A randomized controlled trial

Journal of Digestive Diseases (2019)

Meng Zheng Qing Shi Zeng Yong Quan Yu Rui Ji Yue Yue Li

Objective To compare the performances, tolerability and acceptability of mannitol and polyethylene glycol (PEG) as oral contrast agents in patients undergoing computed tomography enterography (CTE). Methods Patients aged 18‐75 years indicated for CTE were randomized to receive either mannitol or PEG as contrast agents. The coronal reconstructed images of each abdominal quadrant were assessed for maximum distention, proportion of distended bowel loops, presence of inhomogeneous contents and visibility of the small bowel wall. Overall subjective imaging quality assessment and patients’ tolerability and acceptability were recorded. Results Seventy patients were enrolled and randomized into two groups. In the per‐protocol analysis, no significant differences in imaging quality was found in bowel distention maximum diameter, wall visibility and intestinal homogeneity (all P > 0.05). The mean nausea score was lower in the mannitol group (0 [0‐0] vs 1.0 [0‐3.0], P < 0.001). Mannitol was superior to PEG in taste (9.0 [8.0‐10.0] vs 7.0 [5.0‐8.0], P < 0.001), patients’ willingness to reuse the drug (9.0 [8.0‐10.0] vs 8.0 [7.0‐9.0], P = 0.036), satisfaction (9.0 [8.0‐10.0] vs 8.0 [7.0‐9.0], P = 0.022) and ease of completion (9.0 [8.0‐9.3] vs 8.0 [6.5‐9.0], P = 0.030). Conclusions Both mannitol and PEG provided good bowel distention and visualization of the bowel wall. However, mannitol was significantly superior to PEG in patients’ tolerability and acceptability.

Tolerability

10.1111/1751-2980.12835

Cite

Citations (6)

Effects on confocal laser endomicroscopy image quality by different acriflavine concentrations

Journal of Interventional Gastroenterology (2011)

Changqing Li Tao Yu Xiu-Li Zuo Xiangjun Xie Wenbo Li

BACKGROUND: Acriflavine is one of the commonly used staining agents in confocal laser endomicroscopy (CLE), a newly developed technique allows for real time histological observation of gastrointestinal mucosa, but the concentration is not unified. This study aimed to evaluate the effects of acriflavine with different concentrations on the CLE image quality and to find a sound concentration in clinical practice. METHODS: Twenty four consecutive patients who underwent upper gastrointestinal CLE were enrolled into this study. The patients randomly accepted acriflavine in four different concentrations which were the conventional 0.05% and 3 lower ones respectively: 0.02%, 0.01% and 0.005% spraying onto the same focal antrum mucosa during CLE procedures. Differences of Image quality were demonstrated by an objective score system. RESULTS: THERE WAS NO SIGNIFICANT DIFFERENCE ABOUT IMAGE QUALITY AMONG ACRIFLAVINE CONCENTRATIONS: 0.05%, 0.02% and 0.01%, but 0.005% decreased image quality significantly (P=0.012). And 0.005% was also the only one which decreased general assessment significantly (P=0.01). For the 3 diagnostic value assessment indices, there was no significant difference about nonspecific and even staining, while 0.02% showed significant better polar staining (P=0.03). CONCLUSIONS: Acriflavine concentration 0.02% is the best one applied in CLE with the best nuclei staining ability and preserved image quality.

Acriflavine

Endomicroscopy

10.4161/jig.1.2.16828

Cite

Citations (20)

Split‐dose 4‐L polyethylene glycol regimen for patients with previous colorectal surgery in bowel preparation before colonoscopy: A randomized, controlled, single‐blind study

Journal of Digestive Diseases (2018)

Zhu Liu Yue Yue Li Xue Ting Luo Chuan‐Guo Guo Ming Ming Zhang

We aimed to investigate the efficacy of a split-dose 4-L polyethylene glycol (PEG) regimen for the quality of bowel preparation in Asian patients with previous colorectal surgery for colorectal cancer (CRC).This was a prospective, single-center, randomized controlled, endoscopist-blinded study. Patients with previous colorectal surgery for CRC were randomly allocated to a routine, morning-only 2-L PEG (2-MO) group or a split-dose 4-L PEG (4-SD) group. The primary outcome was a successful bowel preparation rate. Secondary outcomes were polyp detection rate (PDR), adenoma detection rate (ADR), patient compliance, satisfaction, tolerance, willingness to repeat the preparation and difficulty of the bowel preparation process.In total, 187 patients were included (93 in the 2-MO group, 94 in the 4-SD group) in this study. The rate of successful bowel preparation in the 4-SD group was higher than in the 2-MO group (89.4% vs 66.7%, P < 0.001) in an intention-to-treat analysis according to the Aronchick score. Patients' satisfaction with the bowel preparation process in the 4-SD group was superior to that in the 2-MO group (93.4% vs 82.2%, P = 0.021). No significant differences were detected in PDR, ADR, patient compliance, tolerance, willingness to repeat the preparation or difficulty of the bowel preparation process.The 4-SD PEG regimen was superior to a routine, morning-only 2-L PEG preparation for bowel preparation in an Asian population with previous colorectal surgery.

Regimen

Bowel preparation

10.1111/1751-2980.12608

Cite

Citations (3)

Research on Identification of Voltage Interruption and Voltage Dips in HHT

Applied Mechanics and Materials (2013)

Guan Qi Liu Kai Sun Fei Long Wang Yan Qing Li

Hilbert Huang Transform (HHT) couldn’t effectively identify voltage interruption and voltage dips. Frequency comparison method was applied to identify the two situations in this paper. The simulation results showed that the magnitude of the Intrinsic Mode Functions (IMF) components and instantaneous frequency fluctuations were not exactly the same, when the magnitude of the voltage sag was different. The magnitude of the voltage sag was larger, the average value of the amplitude of the IMF components was smaller and the instantaneous frequency fluctuations were greater. During the period of voltage interruption, the instantaneous frequency of the IMF components was almost zero and the average value of the IMF components was relatively larger. So the instantaneous frequency of voltage interruption and voltage dips different characters can help to identify the two situations and the results of the example verify to be a practicality method.

Instantaneous phase

Voltage Sag

Disturbance voltage

Mode (computer interface)

10.4028/www.scientific.net/amm.291-294.2562

Cite

Citations (0)

The Study of Low-power Stand-alone Power System Model

International Conference on Mechanic Automation and Control Engineering (2012)

Liang Zhao Yan Qing Li

Wind-light complementary power generation based on pumped storage is recently emerging as a small power generation system, which utilizes wind, hydro as well as solar power coordinately for generation. This design of a small off-grid power system model, with permanent magnet wind turbine as the equipment of wind energy, solar panels as the equipment of solar energy, reversible pump/generator as the equipment of pumped storage and hydroelectric device, PWM unloading circuit without class used for power adjustment. The whole system is measured and controlled by STC12C5A60S2 microcontroller based on the using of the maximum power point tracking (MPPT) method for more effective control of the system to ensure the quality of voltage and frequency so as to achieve stable power output. The system is mainly used in the remote mountainous areas where the wind and sunlight power generation is abundant while the power grid can not reach in. It has great practical value and market prospects.

Power optimizer

Stand-alone power system

Solar Power

Maximum power principle

10.1109/mace.2012.10

Cite

Citations (0)

Separation Research of Ultrasonic Wave in Transformer Partial Discharge Based on Improved Waveform Matching

Applied Mechanics and Materials (2013)

Hong Xie Fei Wang Yan Qing Li Fei Long Wang

The use of direct wave to locate the position of the PD source is of better accuracy in transformer partial discharge ultrasound array positioning. For the signal received by ultrasonic sensor is consisted by direct wave, non-direct wave and a variety of noise, a direct wave separation method based on improved waveform matching is proposed in this paper. It is considered that the direct wave first reaches the ultrasonic sensor. A benchmarks triangle is built and then the attenuation coefficient and the signal frequency are both calculated. In order to search the matching wave, the benchmarks triangle is to pan and zoom. Finally, the best matching waveform is selected from a large number of matching waveforms as a direct wave signal. The result of simulation shows that the method can isolate the ultrasonic direct wave signal from the received signal, which provides some theoretical guidance to improve the position accuracy of the PD source.

SIGNAL (programming language)

10.4028/www.scientific.net/amm.291-294.2325

Cite

Citations (0)

Research on the On-Line Monitoring System for Partial Discharge of Cable Joint

Applied Mechanics and Materials (2013)

Yan Qing Li Zi Hang Jia Liang Zhao Jian Feng Liang

This paper introduces an on-line monitoring system for partial discharge of 10kV cable joint based on LabVIEW. It calculates transfer characteristic of wideband current transformer for monitoring partial discharge current after analyzing the mechanism of production of partial discharge. The proposed current transformer can restrain the noise signal efficiently in electromagnetic induction part. Since the on-line monitoring system was installed in transformer substation, the LabVIEW monitoring platform can keep a lookout over partial discharge current of cable joint constantly. It can monitor the cable joint accurately.

10.4028/www.scientific.net/amm.373-375.986

Cite

Citations (0)

Application of Traps in Detection of Temporary Ground Wires

Applied Mechanics and Materials (2013)

Hong Xie Huan Yu Fan Yan Qing Li Fei Long Wang

Leakage demolition of temporary ground wires often leads to accidents named closing circuit breaker. For this, a detection device is designed in this paper, which is exclusive for the detection of temporary ground wires connected to the ground through towers. Traps present low impedance for 50Hz induced signal while they present high impedance for 200Hz sinusoidal signal, thus inducted current will flow into the earth through the path of traps and ground wires. The amplitude of 200kHz signal collected by the MCU is related to whether there are temporary ground wires connected to power lines. The MCU completes digital filtering work of the collected signal and counts the number that amplitude above the threshold voltage to determine whether there are any temporary ground wires connected to power lines.

SIGNAL (programming language)

Residual-current device

Ground plane

High impedance

10.4028/www.scientific.net/amm.291-294.2182

Cite

Citations (0)