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29 papers found.
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Aerodynamic Optimization Based on Continuous Adjoint Method for a Flexible Wing

Aerodynamic optimization based on continuous adjoint method for a flexible wing is developed using FORTRAN 90 in the present work. Aerostructural analysis is performed on the basis of high-fidelity models with Euler equations on the aerodynamic side and a linear quadrilateral shell element model on the structure side. This shell element can deal with both thin and thick shell...

Aerodynamic Optimization Based on Continuous Adjoint Method for a Flexible Wing

Aerodynamic optimization based on continuous adjoint method for a flexible wing is developed using FORTRAN 90 in the present work. Aerostructural analysis is performed on the basis of high-fidelity models with Euler equations on the aerodynamic side and a linear quadrilateral shell element model on the structure side. This shell element can deal with both thin and thick shell...

2-aminopurine suppresses the TGF-β1-induced epithelial–mesenchymal transition and attenuates bleomycin-induced pulmonary fibrosis

University School of Medicine, Shanghai, China Dong Weng and Jian-xia Chen have contributed equally to this work. Edited by A. Rufini AffiliationsClinical Translation Research Center, Shanghai Pulmonary ... Hospital, Tongji University School of Medicine, Shanghai, ChinaDong Weng, Jian-xia Chen, Li-dan Zhou, Hai-peng Liu, Yan Jiang & Baoxue GeShanghai TB Key Labotatory, Shanghai Pulmonary Hospital, Tongji

Genetic analysis of RNF213 p.R4810K variant in non-moyamoya intracranial artery stenosis/occlusion disease in a Chinese population

Objectives RNF213 p.R4810K was identified as a susceptibility variant for moyamoya disease in Asia and non-moyamoya intracranial artery stenosis/occlusion disease in Japan and Korea recently. The occurrence of this variant was evaluated in patients with non-moyamoya intracranial artery stenosis/occlusion disease in China. Methods Two study populations were used in this study. One...

Workspace and Kinematics Analysis of Redundant Space Manipulator

In order to meet the requirements of tasks in the complex space environment, we designed a kind of 7 degrees of freedom redundant space manipulator in this paper. Its 3D modelling is based on SolidWorks 2015. The joint coordinate system of redundant space manipulator is described with the Denavit-Hartenberg (D-H) method. And the kinematic model is established. The direct...

Effect of the p53–tristetraprolin–stathmin-1 pathway on trophoblasts at maternal–fetal interface

-Cui Li, Fu-Ju Tian. Formal analysis: Xiao-Ling Ma. Funding acquisition: Xiao-Cui Li, Fu-Ju Tian, Xiao-Rui Liu, Yan Zhang, Jian-Xia Fan, Yi Lin. Methodology: Xiao-Ling Ma, Fu-Ju Tian. Resources: Yi

Nitric oxide is involved in the oxytetracycline-induced suppression of root growth through inhibiting hydrogen peroxide accumulation in the root meristem

competing financial interests. Corresponding author Correspondence to Xiao-Jian Xia. Supplementary information Word documents1.Supplemental Information Rights and permissions This work is licensed ... journals • PubMed • Google ScholarSearch for Yunlong Yu in:Nature Research journals • PubMed • Google ScholarSearch for Jing-Quan Yu in:Nature Research journals • PubMed • Google ScholarSearch for Xiao-Jian

Downward trend in the prevalence of Helicobacter pylori infections and corresponding frequent upper gastrointestinal diseases profile changes in Southeastern China between 2003 and 2012

This present study aims to determine trends in the prevalence of H. pylori infections in Southeastern China between 2003 and 2012, and investigate corresponding changes in the prevalence of upper gastrointestinal diseases. This retrospective study screened 196,442 patients with a mean age of 47.49 ± 14.47 years (age range 5–100 years) in Southeastern China, and a total of 134,812...

Differential CT and MR imaging diagnosis between low- and high-grade malignant vascular tumors of bone

Objective To investigate the CT and MR imaging findings and differential diagnosis of malignant vascular tumors of bone. Materials and methods CT and MR imaging findings of 18 patients with histopathology-proven malignant vascular tumors of bone were examined. Assessed image features included age, sex, location, CT findings, and MR imaging appearances and dynamic contrast...

Multiswarm Particle Swarm Optimization with Transfer of the Best Particle

We propose an improved algorithm, for a multiswarm particle swarm optimization with transfer of the best particle called BMPSO. In the proposed algorithm, we introduce parasitism into the standard particle swarm algorithm (PSO) in order to balance exploration and exploitation, as well as enhancing the capacity for global search to solve nonlinear optimization problems. First, the...

Association between ECE1 gene polymorphisms and risk of intracerebral haemorrhage

Objective To determine whether endothelin converting enzyme-1 (ECE1) gene polymorphisms contribute to susceptibility to intracerebral haemorrhage (ICH) by influencing blood pressure.

Overexpression of a brassinosteroid biosynthetic gene Dwarf enhances photosynthetic capacity through activation of Calvin cycle enzymes in tomato

Background Genetic manipulation of brassinosteroid (BR) biosynthesis or signaling is a promising strategy to improve crop yield and quality. However, the relationships between the BR-promoted growth and photosynthesis and the exact mechanism of BR-regulated photosynthetic capacity are not clear. Here, we generated transgenic tomato plants by overexpressing Dwarf, a BR...

Interactions between 2-Cys peroxiredoxins and ascorbate in autophagosome formation during the heat stress response in Solanum lycopersicum

2-Cys peroxiredoxins (2-CPs) function in the removal of hydrogen peroxide and lipid peroxides but their precise roles in the induction of autophagy have not been characterized. Here we show that heat stress, which is known to induce oxidative stress, leads to the simultaneous accumulation of transcripts encoding 2-CPs and autophagy proteins, as well as autophagosomes, in tomato...

Interplay between reactive oxygen species and hormones in the control of plant development and stress tolerance

As a consequence of a sessile lifestyle, plants are continuously exposed to changing environmental conditions and often life-threatening stresses caused by exposure to excessive light, extremes of temperature, limiting nutrient or water availability, and pathogen/insect attack. The flexible coordination of plant growth and development is necessary to optimize vigour and fitness...

Chloroplastic thioredoxin-f and thioredoxin-m1/4 play important roles in brassinosteroids-induced changes in CO2 assimilation and cellular redox homeostasis in tomato

Chloroplast thioredoxins (TRXs) and glutathione function as redox messengers in the regulation of photosynthesis. In this work, the roles of chloroplast TRXs in brassinosteroids (BRs)-induced changes in cellular redox homeostasis and CO2 assimilation were studied in the leaves of tomato plants. BRs-deficient d ^im plants showed decreased transcripts of TRX-f, TRX-m2, TRX-m1/4...

An improved embryo-rescue protocol for hybrid progeny from seedless Vitis vinifera grapes × wild Chinese Vitis species

Gui Rong Li Wei Ji Gang Wang Jian Xia Zhang Yue Jin Wang 0 ) College of Horticulture, Northwest A&F University , Yangling, Shaanxi 712100, People's Republic of China A highly efficient technique of

Polymorphism in Integrin ITGA2 is Associated with Ischemic Stroke and Altered Serum Cholesterol in Chinese Individuals

Background: Recent studies have reported contrasting results regarding the association of polymorphisms in two integrin genes, ITGA2 and ITGB3, with ischemic stroke. Aims: The present study aimed to investigate the correlation between the ITGA2 C807T and ITGB3 T176C polymorphic loci with ischemic stroke, as well as plasma lipid and lipoprotein levels. Study Design: Case control...

Tight Lower Bounds for Halfspace Range Searching

We establish two new lower bounds for the halfspace range searching problem: Given a set of n points in ℝ d , where each point is associated with a weight from a commutative semigroup, compute the semigroup sum of the weights of the points lying within any query halfspace. Letting m denote the space requirements, we prove a lower bound for general semigroups of \(\widetilde...

RBOH1-dependent H2O2 production and subsequent activation of MPK1/2 play an important role in acclimation-induced cross-tolerance in tomato

H2O2 and mitogen-activated protein kinase (MAPK) cascades play important functions in plant stress responses, but their roles in acclimation response remain unclear. This study examined the functions of H2O2 and MPK1/2 in acclimation-induced cross-tolerance in tomato plants. Mild cold, paraquat, and drought as acclimation stimuli enhanced tolerance to more severe subsequent...

H2O2 mediates the crosstalk of brassinosteroid and abscisic acid in tomato responses to heat and oxidative stresses

The production of H2O2 is critical for brassinosteroid (BR)- and abscisic acid (ABA)-induced stress tolerance in plants. In this study, the relationship between BR and ABA in the induction of H2O2 production and their roles in response to heat and paraquat (PQ) oxidative stresses were studied in tomato. Both BR and ABA induced increases in RBOH1 gene expression, NADPH oxidase...