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Code Attention: translating source code to comments by exploiting the code constructs

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Frontiers of Computer Science 2019年第3期13卷 565-578页

作者： Wenhao ZHENG hongyu zhou Ming LI Jianxin WU National Key Laboratory for Novel Software Technology Nanjing University Nanjing 210023 China

Appropriate comments of code snippets provide insight for code functionality, which are helpful for program comprehension. However, due to the great cost of authoring with the comments, many code projects do not contain adequate comments. Automatic comment generation techniques have been proposed to generate comments from pieces of code in order to alleviate the human efforts in annotating the code. Most existing approaches attempt to exploit certain correlations (usually manually given) between code and generated comments, which could be easily violated if coding patterns change and hence the performance of comment generation declines. In addition, recent approaches ignore exploiting the code constructs and leveraging the code snippets like plain text. Furthermore, previous datasets are also too small to validate the methods and show their advantage. In this paper, we propose a new attention mechanism called CodeAttention to translate code to comments, which is able to utilize the code constructs, such as critical statements, symbols and keywords. By focusing on these specific points, CodeAttention could understand the semantic meanings of code better than previous methods. To verify our approach in wider coding patterns, we build a large dataset from open projects in GitHub. Experimental results in this large dataset demonstrate that the proposed method has better performance over existing approaches in both objective and subjective evaluation. We also perform ablation studies to determine effects of different parts in CodeAttention.

关键词： software mining machine learning code comment generation recurrent neural network attention mechanism

Perturbation of autophagy pathways in murine alveolar macrophage by 2D TMDCs is chalcogen-dependent

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Journal of Environmental Sciences 2024年第1期135卷 97-107页

作者： Xiaofei zhou Weitao Jin Rui Zhang Xuan Mao Jianbo Jia hongyu zhou College of Science&Technology Hebei Agricultural UniversityHuanghua 061100China Institute of Environmental Research at Greater Bay Area Key Laboratory for Water Quality and Conservation of the Pearl River DeltaMinistry of EducationGuangzhou UniversityGuangzhou 510006China

Increasing risks of incidental and occupational exposures to two-dimensional transition metal dichalcogenides(2D TMDCs)due to their broad application in various areas raised their public health *** the composition-dependent cytotoxicity of 2D TMDCs has been well-recognized,how the outer chalcogenide atoms and inner transition metal atoms differentially contribute to their perturbation on cell homeostasis at non-lethal doses remains to be *** the present work,we compared the autophagy induction and related mechanisms in response to WS_(2),NbS_(2),WSe_(2)and Nb Se_(2)nanosheets exposures in MH-S murine alveolar *** these 2D TMDCs had comparable physicochemical properties,overall cytotoxicity and capability in triggering autophagy in MH-S cells,but showed outer chalcogen-dependent subcellular localization and activation of autophagy ***,WS_(2)and NbS_(2)nanosheets adhered on the cell surface and internalized in the lysosomes,and triggered m TOR-dependent activation of ***,WSe_(2)and Nb Se_(2)nanosheets had extensive distribution in cytoplasm of MH-S cells and induced autophagy in an m TOR-independent ***,the 2D TMDCs-induced perturbation on autophagy aggravated the cytotoxicity of respirable benzo[a]*** findings provide a deeper insight into the potential health risk of environmental 2D TMDCs from the perspective of homeostasis perturbation.

关键词： Chalcogen group Autophagy pathway Cell function Endosomal escape Inhalation toxicity

Microstructure of in-situ Synthesized (TiB+TiC)/Ti Composites Prepared by Hot-pressing

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Journal of Materials Science & Technology 2003年第Z1期19卷 101-102页

作者： Zhenzhu ZHENG Lin GENG Honglin WANG Weimin zhou hongyu XU School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 China School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 China School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 China School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 China Hei Long Jiang Education College Harbin 150008 China

In-situ 5 *** TiB whiskers and TiC particulates reinforced Ti composites were fabricated by blending Ti powderand B4C particulates followed by reactive hot-pressing. The microstructure of the composites was investigated byusing differential scanning calorimetry (DSC), X-ray diffraction (XRD), transmission electron microscope (TEM)and scanning electron microscope (SEM). The results showed that the reactive temperature between Ti and B4C isabove 570°. Two kinds of reinforcements with different shapes were formed during hot-pressing: TiB short-fiber andequiaxed TiC particles. The interracial bonding between the reinforcements and Ti matrix is perfect. No interracialreaction between reinforcements and Ti matrix was found.

关键词： Ti matrix composite, In-situ synthesis, Powder metallurgy

Mechanical properties and interfacial characteristics of 6061 Al alloy plates fabricated by hot-roll bonding

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International Journal of Minerals,Metallurgy and Materials 2024年第8期31卷 1890-1899页

作者： Zongan Luo Xin Zhang Zhaosong Liu hongyu zhou Mingkun Wang Guangming Xie State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819China

This work aims to investigate the mechanical properties and interfacial characteristics of 6061 Al alloy plates fabricated by hotroll bonding(HRB)based on friction stir *** results showed that ultimate tensile strength and total elongation of the hot-rolled and aged joints increased with the packaging vacuum,and the tensile specimens fractured at the matrix after exceeding 1 ***-equilibrium grain boundaries were formed at the hot-rolled interface,and a large amount of Mg_(2)Si particles were linearly precipitated along the interfacial grain boundaries(IGBs).During subsequent heat treatment,Mg_(2)Si particles dissolved back into the matrix,and Al_(2)O_(3) film remaining at the interface eventually evolved into *** addition,the local IGBs underwent staged elimination during HRB,which facilitated the interface healing due to the fusion of grains at the *** process was achieved by the dissociation,emission,and annihilation of dislocations on the IGBs.

关键词： 6061 Al alloy hot-roll bonding vacuum mechanical properties interfacial grain boundaries

Acoustic finite-difference modeling beyond conventional Courant-Friedrichs-Lewy stability limit:Approach based on variable-length temporal and spatial operators

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Earthquake Science 2021年第2期34卷 123-136页

作者： hongyu zhou Yang Liu Jing Wang State Key Laboratory of Petroleum Resources and Prospecting China University of PetroleumBeijing 102249China Karamay Campus China University of Petroleum(Beijing) Karamay 834000China

Conventional finite-difference(FD)methods cannot model acoustic wave propagation beyond Courant-Friedrichs-Lewy(CFL)numbers 0.707 and 0.577 for two-dimensional(2D)and three-dimensional(3D)equal spacing cases,respectively,thereby limiting time step *** on the definition of temporal and spatial FD operators,we propose a variable-length temporal and spatial operator strategy to model wave propagation beyond those CFL numbers while preserving ***,to simulate wave propagation beyond the conventional CFL stability limit,the lengths of the temporal operators are modified to exceed the lengths of the spatial operators for high-velocity ***,to preserve the modeling accuracy,the velocity-dependent lengths of the temporal and spatial operators are adaptively *** maximum CFL numbers for the proposed method can reach 1.25 and 1.0 in high velocity contrast 2D and 3D simulation examples,*** demonstrate the effectiveness of our method by modeling wave propagation in simple and complex media.

关键词： acoustic wave equation finite-difference stability condition Courant-Friedrichs-Lewy numbers variable length.

Numerical simulation of foam diversion acidizing in heterogeneous reservoirs

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Petroleum 2022年第4期8卷 516-521页

作者： Hui Yuan Xiao Chen Nianyin Li hongyu zhou Yunlei Gong Yuan Wang Zhanjiang Branch of CNOOC(China)Co.Ltd. ZhanjiangChina State Key Laboratory of Oil&Gas Reservoir Geology and Exploitation Engineering Southwest Petroleum UniversityChengduChina

Foam diversion acidizing can effectively solve the problem of acid distribution with severe heterogeneity between and within *** on the foam diversion principle,the gas trap theory,and volume conservation principle,the foam slug diversion acidizing model was established and solved considering the change of bottomhole temperature and deviation factor of *** simulation results show that the change of temperature has a great influence on the diversion effect at the initial stage of injection,but a small influence at the middle and late *** effect of temperature on the highly permeable layer is greater than that of temperature on the low permeability *** deviation factor of foam is mainly controlled by temperature at the initial stage,and by pressure at the middle and late stage,and the whole process shows a downward trend,which has little influence on the diversion *** quasi-skin factor of gas trap is the most important parameter that influences the effect of foam *** water saturation of the low permeability layer rises faster than that of the high permeability layer,and the effect of diversion is *** research results have a strong guiding significance for foam diversion acidizing.

关键词： Foam Diversion acidizing Gas trap Temperature Deviation factor of foam

Orofacial inflammatory pain affects the expression of MT1 and NADPH-d in rat caudal spinal trigeminal nucleus and trigeminal ganglion

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Neural Regeneration Research 2013年第32期8卷 2991-3002页

作者： Fang Huang Hongwen He Wenguo Fan Yongliang Liu hongyu zhou Bin Cheng Guanghua School of Stomatology Hospital of StomatologySun Yat-sen UniversityGuangdong Provincial Key Laboratory of Stomatology

Very little is known about the role of melatonin in the trigeminal system, including the function of melatonin receptor 1. In the present study, adult rats were injected with formaldehyde into the right vibrissae pad to establish a model of orofacial inflammatory pain. The distribution of melatonin re- ceptor 1 and nicotinamide adenine dinucleotide phosphate diaphorase in the caudal spinal trigeminal nucleus and trigeminal ganglion was determined with immunohistochemistry and histo- chemistry. The results show that there are significant differences in melatonin receptor 1 expression and nicotinamide adenine dinucleotide phosphate diaphorase expression in the trigeminal ganglia and caudal spinal nucleus during the early stage of orofacial inflammatory pain. Our findings sug- gest that when melatonin receptor 1 expression in the caudal spinal nucleus is significantly reduced, melatonin＇s regulatory effect on pain is attenuated.

关键词： neural regeneration pain melatonin nitric oxide maxillofacial pain caudal spinal trigeminalnucleus trigeminal ganglia mesencephalic trigeminal nucleus melatonin receptor 1 nicotinamideadenine dinucleotide phosphate diaphorase grants-supported paper neuroregeneration

Exploring treatment options in cancer: Tumor treatment strategies

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Signal Transduction and Targeted Therapy 2024年第8期9卷 3337-3380页

作者： Beilei Liu hongyu zhou Licheng Tan Kin To Hugo Siu Xin-Yuan Guan Department of Clinical Oncology The University of Hong Kong-Shenzhen HospitalShenzhenChina Department of Clinical Oncology The University of Hong KongHong KongChina state Key Laboratory for Liver Research The University of Hong KongHong KongChina Advanced Energy Science and Technology Guangdong Laboratory HuizhouChina MOE Key Laboratory of Tumor Molecular Biology Jinan UniversityGuangzhouChina

Traditional therapeutic approaches such as chemotherapy and radiation therapy have burdened cancer patients with onerous physical and psychological ***,the landscape of tumor treatment has undergone a comprehensive and remarkable *** as fervently pursued modalities are small molecule targeted agents,antibody-drug conjugates(ADCs),cell-based therapies,and gene *** cutting-edge treatment modalities not only afford personalized and precise tumor targeting,but also provide patients with enhanced therapeutic comfort and the potential to impede disease ***,it is acknowledged that these therapeutic strategies still harbour untapped potential for further *** a comprehensive understanding of the merits and limitations of these treatment modalities holds the promise of offering novel perspectives for clinical practice and foundational research *** this review,we discussed the different treatment modalities,including small molecule targeted drugs,peptide drugs,antibody drugs,cell therapy,and gene *** will provide a detailed explanation of each method,addressing their status of development,clinical challenges,and potential *** aim is to assist clinicians and researchers in gaining a deeper understanding of these diverse treatment options,enabling them to carry out effective treatment and advance their research more effciently.

关键词： drugs treatment holds

Vibrational properties of uracil

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Chinese Science Bulletin 2006年第15期51卷 1804-1810页

作者： WANG Zhiping ZHANG Fengshou ZENG Xianghua zhou hongyu GU Bin CHENG Wei Key Laboratory of Beam Technology and Material Modification of Ministry of Education Institute of Low Energy Nuclear Physics Beijing Normal University Beijing 100875 China Beijing Radiation Center Beijing 100875 China College of Physics Science and Technology Yangzhou University Yangzhou 225002 China

A semiempirical molecular dynamics model is developed to study the vibrational frequen cies of uracil at very low kinetic temperature by using the Fourier transform of velocity autocorrelation func tion of trajectories of molecular dynamics simulations The finite difference harmonic method is used to as sign the vibrational frequency of each mode. The calculated frequencies are found to be in good agreement with experimental measurements. More over, we make up for the lost vibrational modes in experiments self-consistently. A total of 30 vibrationa modes and their corresponding frequencies are re ported.

关键词：尿嘧啶振动性能半经验分子动力学模型