Search results for: Ning Guo

Items from 1 to 20 out of 387 results

article

Effects of Cold‐Rolling and Subsequent Annealing on Microstructure and Mechanical Properties of (CrCoNi)₉₇Al_1.5Ti_1.5 Medium‐Entropy Alloy

Liming Zhong, Xiaolian Liu, Fujian Zhang, Yanxia Chen, more

Advanced Engineering Materials > 26 > 20 > n/a - n/a

In this study, the (CrCoNi)₉₇Al_1.5Ti_1.5 medium‐entropy alloy (MEA) is prepared and subjected to cold‐rolling and annealing. The phase and microstructure are characterized by using X‐ray diffraction (XRD), backscattered electron imaging (BSEI), electron backscattered diffraction (EBSD), and transmission Kikuchi diffraction (TKD). Microhardness and tensile properties of the deformed and annealed samples...

article

In vivo haploid induction in cauliflower, kale, and broccoli

Guixiang Wang, Mei Zong, Shuo Han, Hong Zhao, more

Journal of Integrative Plant Biology > 66 > 9 > 1823 - 1826

Modifying the centromeric histone CENH3 or PHOSPHOLIPASE D genes in cauliflower (Brassica oleracea var. botrytis) created haploid induction lines, which can be widely used for in vivo haploid induction in cauliflower, kale, and broccoli, thus enabling rapid utilization of germplasm resources and improving breeding efficiency.

article

A shear‐transformation‐zone model for time‐dependent behaviours of clay

Ning Guo, Wenlong Li, Zhongxuan Yang

International Journal for Numerical and Analytical Methods in Geomechanics > 48 > 12 > 3075 - 3090

A shear‐transformation‐zone (STZ) model is proposed for time‐dependent behaviours of clay, in which the viscoplastic deformation is described by the evolution of a temperature‐like state variable. The model is featured by rate‐dependent dilatancy and a unique critical state stress ratio. In its present form, it has nine parameters, most of which can be handily calibrated, and can predict the rate‐dependent...

article

Tuning the Electro‐Optic Properties of BaTiO₃ Epitaxial Thin Films via Buffer Layer‐Controlled Polarization Rotation Paths

Han Yu, Ning Guo, Chenguang Deng, Haojie Han, more

Advanced Functional Materials > 34 > 30 > n/a - n/a

BaTiO₃ thin films emerge as a highly promising material platform for integrated photonics due to their outstanding electro‐optic properties and diverse functionalities. Despite extensive studies, there remains a notable gap in the understanding of the intricate relationship between the phase structure, domain switching kinetics and electro‐optic performance of these materials. By controlling the structural...

article

Deep learning‐accelerated multiscale approach for granular material modeling

Qingzheng Guan, Zhongxuan Yang, Ning Guo, Lifan Chen

International Journal for Numerical and Analytical Methods in Geomechanics > 48 > 5 > 1372 - 1389

The hierarchical finite element method (FEM)–discrete element method (DEM) multiscale approach is a powerful tool for solving geotechnical boundary value problems. However, despite parallel computing can be resorted to, the high computational cost remains an insurmountable barrier to its practical application in engineering‐scale problems. As an alternative, a deep learning model (DLM) is employed...

article

Utilizing a multi‐layer structure to regulate the thermal conductivity of an advanced BN + EP composite insulation material: Effects of content, number of layers, and curing temperature on composites

Ning Guo, Mingfeng Wang, Jiawen Wang, Zijian Wu, more

Polymer Composites > 45 > 4 > 3536 - 3550

By blending materials such as boron nitride nanosheets (BNNSs), S‐BN and EP, hot pressing is used to realize the layered distribution of BNNSs and S‐BN fillers in the composite material, thereby forming a composite material with a sandwich structure, a horizontal and vertical heat conduction network, and improving performance of composite materials. In this paper, in order to explore the regulation...

article

Cryopreservation of organoids: Strategies, innovation, and future prospects

Hengxin Han, Taijie Zhan, Ning Guo, Mengdong Cui, more

Biotechnology Journal > 19 > 2 > n/a - n/a

Organoid technology has demonstrated unique advantages in multidisciplinary fields such as disease research, tumor drug sensitivity, clinical immunity, drug toxicology, and regenerative medicine. It will become the most promising research tool in translational research. However, the long preparation time of organoids and the lack of high‐quality cryopreservation methods limit the further application...

article

A multifidelity neural network (MFNN) for constitutive modeling of complex soil behaviors

Mingming Su, Ning Guo, Zhongxuan Yang

International Journal for Numerical and Analytical Methods in Geomechanics > 47 > 18 > 3269 - 3289

The development and calibration of soil models under the framework of plasticity is notoriously challenging given the prismatic features in soil's shear behaviors. Data‐driven deep neural networks (DNNs) offer an alternative approach to this formidable task. However, classical DNN models struggle to accurately capture soil mechanical responses using limited training data. To address this issue, a...

article

Association of hospital spending with care patterns and mortality in patients hospitalized with community‐acquired pneumonia

Marina Latif, Ning Guo, Larisa G. Tereshchenko, Michael B. Rothberg

Journal of Hospital Medicine > 18 > 11 > 986 - 993

Background Pneumonia is a leading cause of mortality and intensive therapy is costly. However, it is unclear whether more spending is associated with better patient outcomes or how hospitals could decrease costs. Objectives This study investigates the association between hospital spending and 14‐day inpatient mortality among community‐acquired pneumonia inpatients. Methods This retrospective...

article

Association between physical therapy frequency and postacute care for a national cohort of patients hospitalized with pneumonia

Daniel L. Young, Joshua K. Johnson, Ning Guo, Larisa G. Tereshchenko, more

Journal of Hospital Medicine > 18 > 9 > 803 - 811

Background Annually more than 300,000 patients hospitalized for pneumonia need postacute care. Patients and systems prefer home discharge, but physical limitations often necessitate postacute care. It is unknown whether frequency of physical therapy in the hospital affects postacute care discharges. Objective Examine the relationship between physical therapy visit frequency and disposition among...

article

Physical therapy provision for patients with pneumonia in US hospitals

Joshua K. Johnson, Daniel L. Young, Ning Guo, Larisa G. Tereshchenko, more

Journal of Hospital Medicine > 18 > 9 > 787 - 794

Background Physical therapy (PT) appears beneficial for hospitalized patients. Little is known about PT practice patterns and costs across hospitals. Objective To examine whether receiving PT is associated with specific patient and hospital characteristics for patients with pneumonia. We also explored the variability in PT service provision and costs between hospitals. Methods We included administrative...

article

Effect of SiO₂ particle size scale on the electrical performance of epoxy‐based nonlinear conductive composite

Ning Guo, Zifan Tang, Jiaming Sun, Yulong Wang, more

Polymer Composites > 44 > 4 > 2500 - 2511

In this paper, SiO₂ particles with three particle sizes of 60 nm, 2 μm, and 25 μm were added as fillers into the composites prepared by epoxy resin and micron silicon carbide to investigate the mechanism of SiO₂ particle size on the nonlinear electrical conductivity and breakdown characteristics of the composites. Compared with SiC/EP composites, the smaller the added SiO₂ particle size, the lower...

article

Thermal and electrical insulation properties of BN‐filled polymer‐based elastomer composites

Chang Han, Junguo Gao, Ning Guo, Jianyu Sun, more

Journal of Applied Polymer Science > 140 > 16 > n/a - n/a

To make the current charging time of electric vehicles meet the technical requirements of rapid charging, the higher the charging current needs to be increased. Consequently, higher requirements are put forward for the heat dissipation capacity of the charging pile cable. Therefore, obtaining insulation materials with good electrical and thermal properties is vital to solving the heat dissipation...

article

Plantamajoside attenuates cardiac fibrosis via inhibiting AGEs activated‐RAGE/autophagy/EndMT pathway

Lu Zhang, Yi‐Ning Guo, Jing Liu, Lin‐Hai Wang, more

Phytotherapy Research > 37 > 3 > 834 - 847

Advanced glycation end products (AGEs) have been identified to transduce fibrogenic signals via inducing the activation of their receptor (RAGE)‐mediated pathway. Recently, disrupting AGE‐RAGE interaction has become a promising therapeutic strategy for chronic heart failure (CHF). Endothelial‐to‐mesenchymal transition (EndMT) is close to the cardiac fibrosis pathological process. Our previous studies...

article

Structural design optimization and lipolytic effect prediction of vacuum suction cryolipolysis applicator: Simulation study

Guoliang Yang, Hangyu Dang, Ning Guo, Mengdong Cui, more

Lasers in Surgery and Medicine > 55 > 2 > 233 - 246

Background and Objectives Cryolipolysis is a popular noninvasive lipolytic method that uses low temperature to induce apoptosis or necrosis of adipocytes to reduce local fat in the human body. Vacuum suction applicator is a commonly used cryolipolysis equipment, which suction human skin and fat into a chamber for cooling. The structure of vacuum suction applicator is usually irregular, its cooling...

article

Enhanced catalytic activity of Fe–Ce catalysts determined by synergistic effect of different precursors in selective catalytic reduction of NOx with NH₃

Ning Guo, Ning Niu, Jia Wang, Ting Li, more

Journal of Chemical Technology & Biotechnology > 98 > 2 > 395 - 403

Background Developing environmentally benign and non‐vanadium SCR catalysts remains a challenging task for NOx abatement. In this article, Fe–Ce catalysts including Fe–Ce(S) and Fe(S)–Ce catalysts with different molar ratios of Fe/Ce were synthesized by different precursors of active species expecting to gain high catalytic activity for the selective catalytic reduction (SCR) of NOx with NH₃ in a...

article

Improved particle swarm optimizer for problems with variable evaluation time: Application to asymptotic homogenization

Albert Argilaga, Ning Guo

International Journal for Numerical Methods in Engineering > 123 > 24 > 6220 - 6242

This work presents a new particle swarm optimizer (PSO)‐based metaheuristic algorithm designed to reduce overall computational cost without compromising optimization's precision in functions with variable evaluation time. The algorithm exploits the evaluation time gradient in addition to the convergence gradient attempting to reach the same convergence precision following a more economical path. The...

article

The Arabidopsis IDD14 transcription factor interacts with bZIP‐type ABFs/AREBs and cooperatively regulates ABA‐mediated drought tolerance

Jing Liu, Defeng Shu, Zilong Tan, Mei Ma, more

New Phytologist > 236 > 3 > 929 - 942

The INDETERMINATE DOMAIN (IDD) transcription factors mediate various aspects of plant growth and development. We previously reported that an Arabidopsis IDD subfamily regulates spatial auxin accumulation, and thus organ morphogenesis and gravitropic responses. However, its functions in stress responses are not well defined. Here, we use a combination of physiological, biochemical, molecular, and...

article

A risk model to identify Legionella among patients admitted with community‐acquired pneumonia: A retrospective cohort study

Michael B. Rothberg, Peter B. Imrey, Ning Guo, Abhishek Deshpande, more

Journal of Hospital Medicine > 17 > 8 > 624 - 632

Background Guidelines recommend testing hospitalized patients with community‐acquired pneumonia (CAP) for Legionella pneumophila only if the infection is severe or risk factors are present. There are no validated models for predicting Legionella. Objective To derive and externally validate a model to predict a positive Legionella test. Design, Setting and Participants Diagnostic study of adult...

article

Effects of microstructure on the breakdown characteristics of polyethylene–montmorillonite nanocomposites

Lili Li, Yulong Wang, Junguo Gao, Xiaohong Chi, more

Journal of Applied Polymer Science > 139 > 30 > n/a - n/a

Polyethylene (PE) has numerous applications in electrical and electronic products. However, PE insulation materials have a short service life, which poses a safety risk during power system operation. To address this issue, a molecular model of polyethylene–montmorillonite (PE–MMT) nanocomposites is developed to simulate and explore the microscopic mechanisms influencing their breakdown characteristics...

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INFONA - science communication portal

Search results for: Ning Guo

Effects of Cold‐Rolling and Subsequent Annealing on Microstructure and Mechanical Properties of (CrCoNi)₉₇Al_1.5Ti_1.5 Medium‐Entropy Alloy

In vivo haploid induction in cauliflower, kale, and broccoli

A shear‐transformation‐zone model for time‐dependent behaviours of clay

Tuning the Electro‐Optic Properties of BaTiO₃ Epitaxial Thin Films via Buffer Layer‐Controlled Polarization Rotation Paths

Deep learning‐accelerated multiscale approach for granular material modeling

Utilizing a multi‐layer structure to regulate the thermal conductivity of an advanced BN + EP composite insulation material: Effects of content, number of layers, and curing temperature on composites

Cryopreservation of organoids: Strategies, innovation, and future prospects

A multifidelity neural network (MFNN) for constitutive modeling of complex soil behaviors

Association of hospital spending with care patterns and mortality in patients hospitalized with community‐acquired pneumonia

Association between physical therapy frequency and postacute care for a national cohort of patients hospitalized with pneumonia

Physical therapy provision for patients with pneumonia in US hospitals

Effect of SiO₂ particle size scale on the electrical performance of epoxy‐based nonlinear conductive composite

Thermal and electrical insulation properties of BN‐filled polymer‐based elastomer composites

Plantamajoside attenuates cardiac fibrosis via inhibiting AGEs activated‐RAGE/autophagy/EndMT pathway

Structural design optimization and lipolytic effect prediction of vacuum suction cryolipolysis applicator: Simulation study

Enhanced catalytic activity of Fe–Ce catalysts determined by synergistic effect of different precursors in selective catalytic reduction of NOx with NH₃

Improved particle swarm optimizer for problems with variable evaluation time: Application to asymptotic homogenization

The Arabidopsis IDD14 transcription factor interacts with bZIP‐type ABFs/AREBs and cooperatively regulates ABA‐mediated drought tolerance

A risk model to identify Legionella among patients admitted with community‐acquired pneumonia: A retrospective cohort study

Effects of microstructure on the breakdown characteristics of polyethylene–montmorillonite nanocomposites

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