A5036271035- Aluminum Alloy Microstructure Properties
- Aluminum Alloys Composites Properties
- Prenatal Screening and Diagnostics
- Microstructure and mechanical properties
- Pregnancy and preeclampsia studies
- Social Media and Politics
- Facilities and Workplace Management
- Evacuation and Crowd Dynamics
- Metal Forming Simulation Techniques
- Social and Cultural Dynamics
- Fetal and Pediatric Neurological Disorders
- Network Traffic and Congestion Control
- Genomic variations and chromosomal abnormalities
- Social Capital and Networks
- Impact of Technology on Adolescents
- Renal and related cancers
- Advanced Welding Techniques Analysis
Universidad del Noreste
2025
Kunming University of Science and Technology
2013-2024
First People's Hospital of Yunnan Province
2022-2023
National Health and Family Planning Commission
2020
Hong Kong Baptist University
2015
The as-cast Al–Zn–Mg–Cu alloys with different Zn content were prepared by metal gravity casting. microstructure and constituent phase of the examined optical microscope, scanning electron energy-dispersive X-ray spectroscopy, inductively coupled plasma spectrometer diffraction. increase caused changes morphology size α-Al matrix dendrites intergranular eutectic structure, but it did not affect phases alloys. dendrite strengthening lead to in mechanical properties alloy. With content,...
7XXX aluminum alloy is widely applied to transportation and construction fields due its high mechanical properties low density. However, during the preparation process, stress concentration caused by defects such as shrinkage cavities derived from wide solidification range will lead premature failure of alloy. This study concluded effects different casting methods on tensile Al-Zn-Mg-Ca, quantitatively calculated contribution various strengthening mechanisms improvement The strength ingot...
We examine the formation process of friendship networks Mainland Chinese undergraduates in Hong Kong. The data comes from a 2011 survey at university Kong and in-depth interviews with students. found strong in-group pattern these More than 60% do not have good local friends. On campus where nearly 90% students are locals, on average, only 18% friends named by locals. find that cultural differences—such as language barrier, differences values ideologies, academic orientation future...
To investigate the ultrasonographic classification of fetal umbilical-portal-systemic venous shunts (UPSVS) and correlations with chromosomal abnormalities.We retrospectively analyzed ultrasound characteristics corresponding abnormalities 26 cases UPSVS prenatally diagnosed.A total fetuses diagnosed as were included, including four type I UPSVS, ten II, three IIIA, nine IIIB. Four all complicated by heart enlargement insufficiency, which one case had multiple malformations, terminated...
Taking human behavior into account is the key to turn pedestrian street from tree a semi-network, its location of urban vitality also. The study takes Changsha Walking Street as an example, deliberated walking system and activities, analysis their pros cons with examples, made appropriate recommendations for improvement.
To evaluate the association between maternal polymorphisms of NANOS3 rs2016163, HELQ rs4693089, PRIM1 rs2277339, TLK1 rs10183486, ERCC6 rs2228526, EXO1 rs1635501, DMC1 rs5757133, and MSH5 rs2075789 fetal chromosomal abnormality.This retrospective case-control study included 571 women with chromosome abnormalities (330 pregnant diagnosed aneuploidy, 241 de novo structural pregnancy) 811 healthy January 2018 April 2022. All above were tested using SNaPshot.All eight analyzed for genotypes,...
The construction industry in China has undergone continuous development over the past decades. In relation to this, quality of outdoor environment received increased research attention. This paper takes Tahiti Villas located Kunming District as a case study, using post-occupancy evaluation identify and evaluate main factors affecting activities residents. results indicate that humanistic design is mainly reflected concern for user exhibited by design. Thus, giving users primary importance...
Two casting technologies were introduced to fabricate the Al-7Si-0.6Mg alloy, including high pressure die (HPDC) and semi-solid (SSM). The microstructure mechanical property studied by optical microscopy (OM), scanning electron (SEM), X-Ray diffraction (XRD), microhardness tensile test. electrical conductivity was also evaluate thermal of alloys. Results show that as-cast HPDC alloy SSM both consists primary α-Al, eutectic Si Mg 2 phase. α-Al phase in possesses fine equiaxed dendrite...
Abstract Background: It is well known that second-trimester maternal serum alpha-fetoprotein (MS-AFP) a predictor for adverse pregnancy outcomes (APOs), such as preterm birth, stillbirth, preeclampsia and small gestational age (SGA). However, it unknown whether first-trimester MS-AFP also predictive of APOs. Methods: We retrospectively reviewed the data on levels 3325 singleton pregnant women. The cutoff value 2.5 multiple median (MoM) was used to evaluate risks APOs regarding MS-AFP....