Publications by authors named "Zhigao Wen"
Article Synopsis
- The Inflammatory Burden Index (IBI) is a new indicator that shows the relationship between inflammation and various diseases, particularly coronary slow flow phenomenon (CSFP) in patients with chest pain but no obstructive coronary artery disease.
- In a study with 1,126 participants, it was found that IBI levels were significantly higher in patients with CSFP compared to those with normal blood flow, with IBI independently predicting CSFP alongside body mass index (BMI).
- The study concluded that IBI is a valuable tool for predicting CSFP, as it improves diagnostic accuracy with a specificity of 67.6% and sensitivity of 77.5% when levels exceed 15.74.
BACKGROUND Recently, the albumin-to-creatinine ratio (ACR) has been suggested as a valuable biomarker for adverse events in acute myocardial infarction. However, the prognostic value of ACR in very elderly patients (≥80 years) with non-ST-elevation acute coronary syndrome (NSTE-ACS) after percutaneous coronary intervention (PCI) remains unclear. MATERIAL AND METHODS A total of 354 very elderly patients with NSTE-ACS who underwent PCI were included in this study and followed up for 1 year.
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- Inflammation is a major factor in slow coronary flow phenomenon (SCFP), which complicates cases of ischemia in patients with no obstructive coronary arteries (INOCA). Identifying reliable predictors of SCFP is essential for better management of these patients.* -
- In a study involving 1422 INOCA patients, those with SCFP exhibited higher systemic inflammation response index (SIRI) levels compared to controls, along with increased body mass index (BMI), smoking, and diabetes rates.* -
- Results indicated that BMI and SIRI are independent predictors of SCFP, with SIRI showing promise as a useful tool for distinguishing SCFP, especially when its value exceeds 1.140, indicating a significant predictive sensitivity
Thermal barrier coatings (TBCs) have low thermal conductivity, effectively reducing the temperature of the metal matrix and improving thermal performance, knock resistance, and combustion performance of the piston. In this study, an off-road high-pressure common-rail diesel engine was chosen as the research object. Combined with the test results of the piston temperature field under the rated power and maximum torque conditions, a finite element simulation model of the thermal barrier coating piston was established.
View Article and Find Full Text PDFIn order to explore the thermal load change of the diesel engine piston under transitional conditions, and the influence of the position of cooling gallery on the heat transfer characteristics of the piston. An off-road high-pressure common-rail diesel engine is chosen as the research object. The sequence coupling method is used to establish the fluid-solid coupling heat transfer simulation model of the piston-gallery under the transition conditions of cold start, urgent acceleration and rapid deceleration.
View Article and Find Full Text PDFPiston secondary motion not only influences the side knocking of piston and frictional loss, but also influence the in-cylinder oil consumption and gas blow-by. An inline four-cylinder common rail diesel engine was chosen as the research object. Dynamic simulation model of piston assembly was built based on the piston and cylinder liner temperature field test.
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