Resource Type

Journal Article 7

Year

2022 2

2019 1

2017 1

2015 1

2009 1

2007 1

Keywords

Connections 1

Fatigue 1

GPRS；embedded Internet；S3C2410；SIM100-E 1

LISA/SIM theory 1

Lamb wave 1

Multiphoton structured illumination microscopy 1

Prussian blue 1

Resin-injected bolts 1

S-N curves 1

SIM 1

Structural adhesives 1

Structural reinforcements 1

Structured illumination microscopy 1

Super-resolution microscopy 1

carbon nanocubes 1

damage detection 1

epidemiology 1

finite difference equation 1

finite element 1

macrovascular complication 1

open ︾

Search scope:

排序： Display mode:

quality of care for patients with type 2 diabetes in China: findings from the Shanghai Integration Model (SIM

Frontiers of Medicine 2022, Volume 16, Issue 1,   Pages 126-138 doi: 10.1007/s11684-021-0897-7

Abstract: This cross-sectional study aimed to investigate the quality of care of diabetes in Shanghai, China. A total of 173 235 patients with type 2 diabetes in 2017 were included in the analysis. Profiles of risk factors and intermediate outcomes were determined. The patients had a mean age of 66.43±8.12 (standard deviation (SD)) years and a mean diabetes duration of 7.95±5.53 (SD) years. The percentage of patients who achieved the target level for HbA1c (<7.0%) was 48.6%. Patients who achieved the target levels for blood pressure (BP)<130/80 mmHg and low-density lipoprotein-cholesterol (LDL-c)<2.6 mmol/L reached 17.5% and 34.0%, respectively. A total of 3.8% achieved all three target levels, and the value increased to 6.8% with an adaptation of the BP target level (<140/90 mmHg) for those over 65 years. Multivariable analysis identified the factors associated with a great likelihood of achieving all three target levels: male, young age, short diabetes duration, low body mass index, macrovascular complications, no microvascular complications, prescribed with lipid-lowering medication, and no prescription of antihypertensive medication. In conclusion, nearly 50% and one-third of the patients with diabetes met the target levels for HbA1c and LDL-c, respectively, with a low percentage achieving the BP target level. The percentage of patients who achieved all three target levels needs significant improvement.

Keywords： type 2 diabetes     quality of care     macrovascular complication     microvascular complication     treatment pattern     epidemiology    

HTML PDF Collect

Development of temperature-robust damage factor based on sensor fusion for a wind turbine structure

Jong-Woong PARK,Sung-Han SIM,Jin-Hak YI,Hyung-Jo JUNG

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 1,   Pages 42-47 doi: 10.1007/s11709-014-0285-3

Abstract: Wind power systems have gained much attention due to the relatively high reliability, maturity in technology and cost competitiveness compared to other renewable alternatives. Advances have been made to increase the power efficiency of the wind turbines while less attention has been focused on structural integrity assessment of the structural systems. Vibration-based damage detection has widely been researched to identify damages on a structure based on change in dynamic characteristics. Widely spread methods are natural frequency-based, mode shape-based, and curvature mode shape-based methods. The natural frequency-based methods are convenient but vulnerable to environmental temperature variation which degrades damage detection capability; mode shapes are less influenced by temperature variation and able to locate damage but requires extensive sensor instrumentation which is costly and vulnerable to signal noises. This study proposes novelty of damage factor based on sensor fusion to exclude effect of temperature variation. The combined use of an accelerometer and an inclinometer was considered and damage factor was defined as a change in relationship between those two measurements. The advantages of the proposed method are: 1) requirement of small number of sensor, 2) robustness to change in temperature and signal noise and 3) ability to roughly locate damage. Validation of the proposed method is carried out through numerical simulation on a simplified 5 MW wind turbine model.

Keywords： sensor fusion     damage detection     structural health monitoring    

HTML PDF Collect

Two-dimensional SnS2 nanosheets on Prussian blue template for high performance sodium ion batteries

Sim, Kakui Ma, Zhixiang Huang, Shaozhuan Huang, Ye Wang, Huiying Yang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 493-500 doi: 10.1007/s11705-019-1826-z

Abstract: Three-dimensional Prussian blue (PB) nanostructures was obtained via a one-step hydrothermal method. Subsequently, two-dimensional tin disulfide (SnS ) nanosheets were grown onto PB through a facile hydrothermal synthesis. The as prepared SnS /PB is further employed as the anode of sodium ion batteries (SIBs). SnS /PB nanoarchitecture delivers a specific capacity of 725.7 mAh∙g at 50 mA∙g . When put through more than 200 cycles, it achieved a stable cycling capacity of 400 mAh∙g at 200 mA∙g . The stable Na storage properties of SnS /PB was attributed to the synergistic effect among the conductive PB carbon, used as the template in this work. These results obtained potentially paves the way for the development of excellent electrochemical performance with stable performance of SIBs.

Keywords： Prussian blue     carbon nanocubes     tin disulfide     sodium ion batteries    

HTML PDF Collect

Design of GPRS Data Terminal Based on S3C2410

Sun Xueyong

Strategic Study of CAE 2007, Volume 9, Issue 12,   Pages 94-96

Abstract: and working process of the embedded Internetconnected platform, which regards S3C2410 as kernel and SIM100

Keywords： GPRS；embedded Internet；S3C2410；SIM100-E    

HTML PDF Collect

Lamb wave propagation modeling for structure health monitoring

Xiaoyue ZHANG, Shenfang YUAN, Tong HAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 326-331 doi: 10.1007/s11465-009-0045-6

Abstract: simulation approach, used for modeling sharp interfaces and discontinuities in complex media (LISA/SIMIn this paper, the Lamb waves propagating characteristics and the LISA/SIM theory are introduced.The finite difference equations describing wave propagation used in the LISA/SIM theory are obtained.

Keywords： Lamb wave     modeling     LISA/SIM theory     finite difference equation     finite element    

HTML PDF Collect

Improvement in Resolution of Multiphoton Scanning Structured Illumination Microscopy via Harmonics

Lei Wang,Xiaomin Zheng,Jie Zhou,Meiting Wang,Jiajie Chen,Youjun Zeng,Gaixia Xu,Ying Wang,Haixia Qiu,Yonghong Shao,Junle Qu,Bruce Zhi Gao,Ying Gu,

Engineering 2022, Volume 16, Issue 9,   Pages 65-72 doi: 10.1016/j.eng.2021.12.010

Abstract:

We describe a multiphoton (mP)-structured illumination microscopy (SIM) technique, which demonstratessubstantial improvement in image resolution compared with linear SIM due to the nonlinear response ofWe present an mP-SIM theory for reconstructing the super-resolution image of the system.Experimentally, we demonstrate an 86-nm lateral resolution for 2P-SIM and a 72-nm lateral resolutionfor second-harmonic-generation (SHG)-SIM.

Keywords： Super-resolution microscopy     Structured illumination microscopy     Multiphoton structured illumination microscopy     SIM    

HTML PDF Collect

Fatigue Strength Evaluation of Resin-Injected Bolted Connections Using Statistical Analysis

Alberto da Silva Rebelo, Rui Artur Bartólo Calçada, Luís Alberto Proença Sim

Engineering 2017, Volume 3, Issue 6,   Pages 795-805 doi: 10.1016/j.eng.2017.12.001

Abstract:

Different strategies can be used to perform reparations and reinforcements of ancient bolted and riveted metallic bridges. As the riveting process is not currently a common practice, it requires proper equipment and skilled workers. Another solution is the use of welding. However, the weldability of old steels is poor. Bolts are very attractive alternative solutions, and are most commonly used to repair old metallic bridges. Fitted bolts are expensive solutions; the alternative is the use of resin-injected bolts. The behavior of bolted joints with preloaded resin-injected bolts has been studied using quasi-static and creep tests; however, few studies on the slip and fatigue behavior of these joints can be found in the literature. This paper presents an overview of a few experimental programs that were carried out by several authors aiming at evaluating the fatigue behavior of single and double shear resin-injected bolted connections. A comparison between the experimental data of joints with preloaded standard bolts and preloaded resininjected bolts shows a fatigue strength reduction in the latter. Since Eurocode 3 (EC3) suggests the same fatigue strength curve for joints made of resin-injected bolts and standard bolts, this may raise some concerns. Furthermore, research on the feasibility of using both bonded and bolted connections is shown. This last study was performed with high-strength low-alloy structural steel plates and an acrylic structural adhesive for metal bonding. For both case studies, a statistical analysis is performed on fatigue experimental data using linearized boundaries and the Castillo and Fernández-Canteli model. Fatigue design curves are proposed and compared with the design suggestions of several European and North American standards.

Keywords： Fatigue     Connections     Structural reinforcements     Structural adhesives     S-N curves     Resin-injected bolts    

HTML PDF Collect

Title Author Date Type Operation

quality of care for patients with type 2 diabetes in China: findings from the Shanghai Integration Model (SIM

Journal Article

Development of temperature-robust damage factor based on sensor fusion for a wind turbine structure

Jong-Woong PARK,Sung-Han SIM,Jin-Hak YI,Hyung-Jo JUNG

Journal Article

Two-dimensional SnS2 nanosheets on Prussian blue template for high performance sodium ion batteries

Sim, Kakui Ma, Zhixiang Huang, Shaozhuan Huang, Ye Wang, Huiying Yang

Journal Article

Design of GPRS Data Terminal Based on S3C2410

Sun Xueyong

Journal Article

Lamb wave propagation modeling for structure health monitoring

Xiaoyue ZHANG, Shenfang YUAN, Tong HAO

Journal Article

Improvement in Resolution of Multiphoton Scanning Structured Illumination Microscopy via Harmonics

Lei Wang,Xiaomin Zheng,Jie Zhou,Meiting Wang,Jiajie Chen,Youjun Zeng,Gaixia Xu,Ying Wang,Haixia Qiu,Yonghong Shao,Junle Qu,Bruce Zhi Gao,Ying Gu,

Journal Article

Fatigue Strength Evaluation of Resin-Injected Bolted Connections Using Statistical Analysis

Alberto da Silva Rebelo, Rui Artur Bartólo Calçada, Luís Alberto Proença Sim

Journal Article