Search results for: Yang Liu

Items from 1 to 20 out of 8,846 results

article

Improved Gauss Seidel based projection–contraction algorithm for the mixed complementarity problem in contact problem

Yan Zeng, Hong Zheng, Yang Liu, Bing Yang, more

International Journal for Numerical and Analytical Methods in Geomechanics > 46 > 13 > 2620 - 2632

The GSCP (Gauss–Seidel based projection‐contraction) algorithm has been well established in solving elastoplastic mixed complementarity problems (MiCPs) or other problems which have similar mathematical form. However, the stability problems in the GSPC algorithm may cause nonconvergence or program crashes. Thus, the method of constructing and analyzing counterexamples is adopted to study the reasons...

article

Cytochrome P450 Monooxygenases Catalyse Steroid Nucleus Hydroxylation with Regio‐ and Stereo‐Selectivity

Rui Zhu, Yang Liu, Yueying Yang, Qing Min, more

Advanced Synthesis & Catalysis > 364 > 16 > 2701 - 2719

Steroids are the second largest class of drugs with a wide range of pharmacological properties. Hydroxylation of steroids seriously affects their biological activities and other properties. However, steroids are mostly sp³ hybridized carbons with numerous C−H bonds far from the functional group that can activate them, and achieving regio‐ and stereo‐selective hydroxylation on steroids is a highly...

article

Recharge of chondrocyte mitochondria by sustained release of melatonin protects cartilage matrix homeostasis in osteoarthritis

Yijian Zhang, Mingzhuang Hou, Yang Liu, Tao Liu, more

Journal of Pineal Research > 73 > 2 > n/a - n/a

Recent evidence indicates that the mitochondrial functions of chondrocytes are impaired in the pathogenesis of osteoarthritis (OA). Melatonin can attenuate cartilage degradation through its antioxidant functions. This study aims to investigate whether melatonin could rescue the impaired mitochondrial functions of OA chondrocytes and protect cartilage metabolism. OA chondrocytes showed a compromised...

article

The association of iron‐deficiency anemia, thrombocytosis at delivery and postpartum venous thromboembolism

Xiaohua Liu, Yang Liu, Cuicui Qu, Ben Mol, more

American Journal of Hematology > 97 > 9 > E356 - E358

article

Phylogeny of Orthotrichum s.l. and Ulota s.l. (Orthotrichaceae, Bryophyta): Insights into stomatal evolution

Qing‐Hua Wang, Shan‐Shan Dong, Jin‐Long Zhang, Yang Liu, more

Journal of Systematics and Evolution > 60 > 4 > 876 - 900

Orthotrichum Hedw. s.l. and Ulota Mohr s.l. are two of the most speciose genera of the xerophytic moss family Orthotrichaceae. We reconstructed the phylogeny of these two genera using three data matrices: (i) organellar genomes and 33 taxa; (ii) six loci from three genomes and 144 taxa; and (iii) two plastid loci and 163 taxa. The present phylogeny, based on the maximum sampling of genes or taxa...

article

Mitochondrial genes from 18 angiosperms fill sampling gaps for phylogenomic inferences of the early diversification of flowering plants

Jia‐Yu Xue, Shan‐Shan Dong, Ming‐Qiang Wang, Tian‐Qiang Song, more

Journal of Systematics and Evolution > 60 > 4 > 773 - 788

The early diversification of angiosperms is thought to have been a rapid process, which may complicate phylogenetic analyses of early angiosperm relationships. Plastid and nuclear phylogenomic studies have raised several conflicting hypotheses regarding overall angiosperm phylogeny, but mitochondrial genomes have been largely ignored as a relevant source of information. Here we sequenced mitochondrial...

article

Dietary poly‐β‐hydroxybutyrate supplementation can effectively improve growth, digestive enzyme activities, immune‐related gene expression, disease resistance, and intestinal mucosal barrier of gibel carp, Carassius auratus gibelio

Yang Liu, Peng Chen, Zisheng Wang, Tingli Lv, more

Journal of the World Aquaculture Society > 53 > 4 > 816 - 835

Poly‐β‐hydroxybutyrate (PHB) can promote growth and enhance immunity of aquatic animals such as gibel carp, Carassius auratus gibelio. However, the optimal dietary supplementation level and feeding duration for gibel carp are still unclear. In this study, effects of various PHB supplementation levels on gibel carp growth performance, digestive enzyme activities, immune function, disease resistance,...

article

Corylin from Psoralea fructus (Psoralea corylifolia L.) protects against UV‐induced skin aging by activating Nrf2 defense mechanisms

Nan Li, Tao Liu, Shan Zhu, Yi Yang, more

Phytotherapy Research > 36 > 8 > 3276 - 3294

Oxidative stress damage can lead to premature skin aging or age‐related skin disorders. Therefore, strategies to improve oxidative stress‐induced aging are needed to protect the skin and to treat skin diseases. This study aimed to determine whether the flavonoid corylin derived from Psoralea corylifolia can prevent UV‐induced skin aging and if so, to explore the potential molecular mechanisms. We...

article

Composition Engineering of Amorphous Nickel Boride Nanoarchitectures Enabling Highly Efficient Electrosynthesis of Hydrogen Peroxide

Jie Wu, Meilin Hou, Ziliang Chen, Weiju Hao, more

Advanced Materials > 34 > 32 > n/a - n/a

Developing advanced electrocatalysts with exceptional two electron (2e⁻) selectivity, activity, and stability is crucial for driving the oxygen reduction reaction (ORR) to produce hydrogen peroxide (H₂O₂). Herein, a composition engineering strategy is proposed to flexibly regulate the intrinsic activity of amorphous nickel boride nanoarchitectures for efficient 2e⁻ ORR by oriented reduction of Ni²⁺...

article

The Electron Transport Regulation in Carbon Dots/In₂O₃ Electrocatalyst Enable 100% Selectivity for Oxygen Reduction to Hydrogen Peroxide

Jie Wu, Yidong Han, Yuchen Bai, Xiting Wang, more

Advanced Functional Materials > 32 > 32 > n/a - n/a

Direct electrosynthesis of hydrogen peroxide (H₂O₂) via two‐electron pathway oxygen reduction reaction (2e⁻ ORR) is crucially essential for a sustainable green economy. However, catalysts inevitably undergo four‐electron pathway oxygen reduction reaction (4e⁻ ORR), resulting in low selectivity and economic benefits. The current challenge is to provide a feasible design strategy for obtaining satisfactory...

article

Application of suture anchors for a clinically relevant rat model of rotator cuff tear

Yang Liu, Sai‐Chuen Fu, Shi‐Yi Yao, Xiao‐Dan Chen, more

Journal of Tissue Engineering and Regenerative Medicine > 16 > 8 > 757 - 770

Current rat model of rotator cuff (RC) tear could not mimic the suture anchor (SA) repair technique in the clinical practice. We designed a novel SA for RC repair of rats to establish a clinically relevant animal model. Small suture anchors that fit the rat shoulder were assembled. 60 rats were assigned to the transosseous (TO) repair group or SA repair group (n = 30/group). Micro‐computed tomography...

article

Disentangling the relative roles of geographical and ecological factors in driving genomic variations of a widely distributed bird across a longitudinal gradient

Pengcheng Wang, Simin Liu, Junhua Hu, Jing Zhang, more

Journal of Avian Biology > 2022 > 7 > n/a - n/a

Unraveling geographical modes of speciation processes has been a longstanding topic in biogeography. Divergence can be driven by factors operating on multiple spatial scales, such as geographical distance (isolation by distance, IBD), landscape resistance (isolation by resistance, IBR) and environmental heterogeneity (isolation by environment, IBE). However, it is challenging to assess the relative...

article

Theoretical investigations on the properties of graphene supported metal (Al, Zn, Fe) catalysts and the reaction mechanism of catalyzing water to hydrogen peroxide

Xu‐Jiang Wan, Yang Wu, Dan Mao, Qiao‐Qiao Qin, more

International Journal of Quantum Chemistry > 122 > 18 > n/a - n/a

In this paper, density functional theory (DFT) was used to study the reaction mechanism of the production of hydrogen peroxide from oxygen and water catalyzed by graphene supported metal (Al, Zn, and Fe) catalysts. By comparing the supported stability of metal at different sites on graphene surface, the optimal support sites are determined and then a stable catalyst model is selected. Two different...

article

Anticipating financial distress of high‐tech startups in the European Union: A machine learning approach for imbalanced samples

Yang Liu, Qingguo Zeng, Bobo Li, Lili Ma, more

Journal of Forecasting > 41 > 6 > 1131 - 1155

The financial status of high‐tech startups directly reflects a country's economic vitality. Hence, the financial distress of high‐tech startups will hinder a country's economic growth. In this study, we extract financial data of seven countries from the VICO 2.0 dataset; the sample includes high‐tech startups (labeled as acquired, nonacquired, failure, and nonfailure) between 2005 and 2014. We utilize...

article

Roles of physical filling and chemical crosslinking on the physico‐mechanical properties of polylactic acid

Yanping Hao, Hongchi Tian, Jun Chen, Qingkui Chen, more

Journal of Applied Polymer Science > 139 > 34 > n/a - n/a

Polylactic acid (PLA) modified materials were prepared with physical filling and chemical crosslinking methods by melt extrusion respectively in this work, and the mechanical, rheological, crystalline, and heat resistance properties were investigated. It is found that filling with talc as the nucleating agent enhanced the crystallization capacity of PLA evidently. When 2 wt% talc was added into the...

article

Electron‐beam irradiated ceramizable‐silicone‐rubber‐composites containing allyl‐functionalized cyclophosphazene

Le Wang, Bingbing Leng, Cengliang Shan, Xu Zhao, more

Journal of Applied Polymer Science > 139 > 34 > n/a - n/a

In the current study, the ceramifiable‐silicone‐rubber‐composites (CSRs) containing allyl‐functionalized cyclophosphazene (CP‐Allyl) were prepared for studying as novel fire‐resistant insulating materials. Electron‐beam (EB) irradiation was applied to obtain the cross‐linked networks, and the gel content of 98.8% could be achieved at an irradiation dose of 120 kGy. The thermal, mechanical, flame retardancy...

article

Substantial non‐growing season carbon dioxide loss across Tibetan alpine permafrost region

Qinlu Li, Yang Liu, Dan Kou, Yunfeng Peng, more

Global Change Biology > 28 > 17 > 5200 - 5210

One of the major uncertainties for projecting permafrost carbon (C)‐climate feedback is a poor representation of the non‐growing season carbon dioxide (CO₂) emissions under a changing climate. Here, combining in situ field observations, regional synthesis and a random forest model, we assessed contemporary and future soil respired CO₂ (i.e., soil respiration, R_s) across the Tibetan alpine permafrost...

article

A certificateless authentication scheme with fuzzy batch verification for federated UAV network

Zhuzhu Wang, Junwei Zhang, Yang Liu, Maobin Lu, more

International Journal of Intelligent Systems > 37 > 9 > 6048 - 6079

Recently, the explosive development of unmanned aerial vehicles (UAVs) promotes its wide application in various services such as package delivery, traffic monitoring. However, due to the high‐speed movement, current UAVs usually adopts the unsecure channel without the complicated authentication mechanism to ensure real‐time communication. In this paper, we introduce a certificateless authentication...

article

Temporally sliced photon primitives for time‐of‐flight rendering

Yang Liu, Shaojie Jiao, Wojciech Jarosz

Computer Graphics Forum > 41 > 4 > 29 - 40

We derive a class of new Monte Carlo estimators for volumetric time‐of‐flight rendering, generalizing prior work on transient photon points and beams. Conceptually, our method starts with any steady‐state photon primitive – like a photon plane, parallelepiped, or parallelotope – and slices it with a temporal wavefront, producing a primitive of one dimension lower. We show how different unbiased temporally...

article

Unraveling the Correlations between Mechanical Properties, Miscibility, and Film Microstructure in All‐Polymer Photovoltaic Cells

Kangkang Zhou, Kaihu Xian, Qingchun Qi, Mengyuan Gao, more

Advanced Functional Materials > 32 > 30 > n/a - n/a

The rapid development of low bandgap polymer acceptors has promoted the efficiency up to ≈17% for all‐polymer solar cells (all‐PSCs). Nevertheless, the polymeric blend film, core to the photoelectric conversion of all‐PSCs, has not been thoroughly understood in terms of the influence and regulatory factors of mechanical properties, which hinders the advances in flexible and wearable applications....

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INFONA - science communication portal

Search results for: Yang Liu

Improved Gauss Seidel based projection–contraction algorithm for the mixed complementarity problem in contact problem

Cytochrome P450 Monooxygenases Catalyse Steroid Nucleus Hydroxylation with Regio‐ and Stereo‐Selectivity

Recharge of chondrocyte mitochondria by sustained release of melatonin protects cartilage matrix homeostasis in osteoarthritis

The association of iron‐deficiency anemia, thrombocytosis at delivery and postpartum venous thromboembolism

Phylogeny of Orthotrichum s.l. and Ulota s.l. (Orthotrichaceae, Bryophyta): Insights into stomatal evolution

Mitochondrial genes from 18 angiosperms fill sampling gaps for phylogenomic inferences of the early diversification of flowering plants

Dietary poly‐β‐hydroxybutyrate supplementation can effectively improve growth, digestive enzyme activities, immune‐related gene expression, disease resistance, and intestinal mucosal barrier of gibel carp, Carassius auratus gibelio

Corylin from Psoralea fructus (Psoralea corylifolia L.) protects against UV‐induced skin aging by activating Nrf2 defense mechanisms

Composition Engineering of Amorphous Nickel Boride Nanoarchitectures Enabling Highly Efficient Electrosynthesis of Hydrogen Peroxide

The Electron Transport Regulation in Carbon Dots/In₂O₃ Electrocatalyst Enable 100% Selectivity for Oxygen Reduction to Hydrogen Peroxide

Application of suture anchors for a clinically relevant rat model of rotator cuff tear

Disentangling the relative roles of geographical and ecological factors in driving genomic variations of a widely distributed bird across a longitudinal gradient

Theoretical investigations on the properties of graphene supported metal (Al, Zn, Fe) catalysts and the reaction mechanism of catalyzing water to hydrogen peroxide

Anticipating financial distress of high‐tech startups in the European Union: A machine learning approach for imbalanced samples

Roles of physical filling and chemical crosslinking on the physico‐mechanical properties of polylactic acid

Electron‐beam irradiated ceramizable‐silicone‐rubber‐composites containing allyl‐functionalized cyclophosphazene

Substantial non‐growing season carbon dioxide loss across Tibetan alpine permafrost region

A certificateless authentication scheme with fuzzy batch verification for federated UAV network

Temporally sliced photon primitives for time‐of‐flight rendering

Unraveling the Correlations between Mechanical Properties, Miscibility, and Film Microstructure in All‐Polymer Photovoltaic Cells

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