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爆破地震波在台阶坡顶处放大效应研究

现代矿业 2015年第1期31卷 40-41,65页

作者：易巧明璩世杰许文耀万鹏鹏王靖北京科技大学土木与环境工程学院

从波动理论出发,分析了台阶爆破中地震波的传播规律,通过对比坡顶和坡底不同地形,在坡顶处引入放大系数K',坡底则不考虑放大效应,从波衍射时能量变化方面对萨道夫斯基公式进行了修改,用回归分析得出了在一定地形地质条件下的爆破振动预... 详细信息

从波动理论出发,分析了台阶爆破中地震波的传播规律,通过对比坡顶和坡底不同地形,在坡顶处引入放大系数K',坡底则不考虑放大效应,从波衍射时能量变化方面对萨道夫斯基公式进行了修改,用回归分析得出了在一定地形地质条件下的爆破振动预测公式。

关键词：台阶爆破地震波传播回归分析

Incorporating contextual evidence to improve implicit discourse relation recognition in Chinese

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Frontiers of Computer Science 2024年第3期18卷 91-104页

作者： Sheng XU Peifeng LI qiaoming ZHU School of Computer Science and Technology Soochow UniversitySuzhou 215000China

The discourse analysis task,which focuses on understanding the semantics of long text spans,has received increasing attention in recent *** a critical component of discourse analysis,discourse relation recognition aims to identify the rhetorical relations between adjacent discourse units(e.g.,clauses,sentences,and sentence groups),called arguments,in a *** works focused on capturing the semantic interactions between arguments to recognize their discourse relations,ignoring important textual information in the surrounding ***,in many cases,more than capturing semantic interactions from the texts of the two arguments are needed to identify their rhetorical relations,requiring mining more contextual *** this paper,we propose a method to convert the RST-style discourse trees in the training set into dependency-based trees and train a contextual evidence selector on these transformed *** this way,the selector can learn the ability to automatically pick critical textual information from the context(i.e.,as evidence)for arguments to assist in discriminating their *** we encode the arguments concatenated with corresponding evidence to obtain the enhanced argument ***,we combine original and enhanced argument representations to recognize their *** addition,we introduce auxiliary tasks to guide the training of the evidence selector to strengthen its selection *** experimental results on the Chinese CDTB dataset show that our method outperforms several state-of-the-art baselines in both micro and macro F1 scores.

关键词： discourse parsing discourse relation recognition contextual evidence selection

Research on Chinese negation and speculation： corpus annotation and identification

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Frontiers of Computer Science 2016年第6期10卷 1039-1051页

作者： Bowei ZOU Guodong ZHOU qiaoming ZHU School of Computer Science and Technology Soochow University Suzhou 215006 China

Identifying negative or speculative narrative frag- ments from facts is crucial for deep understanding on natu- ral language processing （NLP）. In this paper, we firstly con- struct a Chinese corpus which consists of three sub-corpora from different resources. We also present a general framework for Chinese negation and speculation identification. In our method, first, we propose a feature-based sequence labeling model to detect the negative or speculative cues. In addition, a cross-lingual cue expansion strategy is proposed to increase the coverage in cue detection. On this basis, this paper presents a new syntactic structure-based framework to identify the linguistic scope of a negative or speculative cue, instead of the traditional chunking-based framework. Experimental results justify the usefulness of our Chinese corpus and the appropriateness of our syntactic structure-based framework which has showed significant improvement over the state-of-the-art on Chinese negation and speculation identification.

关键词： negation speculation cue detection scope resolution Chinese corpus

A Hashing Power Allocation Game with and without Risk-free Asset

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Journal of Systems Science and Information 2021年第3期9卷 255-265页

作者： Yukun CHENG Donglei DU qiaoming HAN School of Business Suzhou University of Science and TechnologySuzhou 215009China Faculty of Management University of New BrunswickNB CanadaFredericton E3B 9 Y2Canada School of Economics&Management Nanjing Tech UniversityNanjing 211800China

Miners in various blockchain-backed cryptocurrency networks compete to maintain the validity of the underlying distributed ledgers to earn the bootstrapped *** limited hashing power,each miner needs to decide how to allocate their resource to different cryptocurrencies so as to achieve the best overall *** all the miners form a hashing power allocation *** consider two settings of the game,depending on whether each miner can allocate their fund to a risk-free asset or *** show that this game admits unique pure Nash equilibrium in closed-form for both settings.

关键词： game and Nash equilibrium blockchain cryptocurrency mining risk-neutral risk-averse

Stance detection via sentiment information and neural network model

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Frontiers of Computer Science 2019年第1期13卷 127-138页

作者： Qingying SUN Zhongqing WANG Shoushan LI qiaoming ZHU Guodong ZHOU Natural Language Processing Lab Soochow UniversitySuzhou 215006China Huaiyin Normal University Huai'an 223300China

Stance detection aims to automatically determine whether the author is in favor of or against a given *** principle,the sentiment information of a post highly influences the *** this study,we aim to leverage the sentiment information of a post to improve the performance of stance ***,conventional discrete models with sentimental features can cause error *** thus propose a joint neural network model to predict the stance and sentiment of a post simultaneously,because the neural network model can learn both representation and interaction between the stance and sentiment ***, we first learn a deep shared representation between stance and sentiment information,and then use a neural stacking model to leverage sentimental information for the stance detection *** studies demonstrate the effectiveness of our proposed joint neural model.

关键词： natural language processing machine learning stance detectionStance detection

Characterizations of Skeletal Iron Catalysts Prepared from Rapidly and Naturally Quenched Fe-Al Alloys

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Chemical Research in Chinese Universities 2004年第4期20卷 452-456页

作者： LUOGe YANShi-run qiaoming-hua ZHANGKai HUHua-rong HEHe-yong FANKang-nian ShanghaiKeyLaboratoryofMolecularCatalystsandInnovativeMaterials DepartmentofChemistryFudanUniversityShanghai200433P.R.China DepartmentofChemicalEngineering UniversityCollegeLondonLondonWC1E7JEUK

Surface morphology, physical-chemical properties of skeletal iron catalysts prepared by leaching of the rapidly quenched(RQ) and naturally quenched(NQ) Fe-Al alloys with an aqueous solution of NaOH were characterized by using a series of techniques including XRD, BET, XPS, SEM, H_2 and CO-TPD. It was found that the RQ skeletal iron catalyst exhibits a smaller particle size, larger specific surface area and pore volume than the NQ one. The H_2 and CO-TPD experiments showed that the RQ skeletal iron exhibits stronger affinity for H_2 and milder affinity for CO compared with the NQ one. But the NQ skeletal catalyst shows a better thermal stability than the RQ catalyst.

关键词： Rapidly quenched alloy Skeletal iron catalyst Characterization

Pokemon reduces Bcl-2 expression through NF-κ Bp65:a possible mechanism of hepatocellular carcinoma

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Asian Pacific Journal of Tropical Medicine 2011年第6期4卷 492-497页

作者： Xinkai Zhao qiaoming Ning Xiaoning Sun De'an Tian Department of Gastroenterology Tongji HospitalTongji Medical CollegeHuazhong University of Science and Technology Hainan Provincial People's Hospital

Objective:To investigate the relationship among Pokemon,NF-κB p65 and Bcl-2 in hepatoma ***:HCC cell HepG2,SMMC7721 and human fetal liver cell line L02 cells were used,and expression of Pokemon,NF-κB p65 and Bcl-2 in three cells were detected by realtime PCR and western *** siRNA of Pokemon was applied to inhibit the expression of Pokemon and NF-κB p65 and apoptotic rate was determined by flow cytometric analysis. Results:Expressions of Pokemon,NF-κB p65 and Bcl-2 in human hepatoma cell HepG2, SMMC7721 expression were significantly higher than those in human embryonic stem cells L02. siRNA of Pokemon inhibited the expression of Pokemon,NF-κB p65 and Bcl-2 in liver cancer cells,and significantly increased apoptosis of liver *** siRNA of NF-κB n65 inhibited the expression of NF-κB p65 and Bcl-2,but Pokemon expression in hepatoma cells had no significant ***:The proto-oncogene Pokemon can inhibit PI4ARF by specific transcription regulation of cell cycle and can induce *** addition,Pokemon can regulate NF-κB p65 through the expression of apoptosis repressor,and promote the development of liver *** suggests signal network in the liver include the regulation of new non-classical NF-κB regulatory pathway.

关键词： Pokemon NF-κB p65 Bcl-2 Hepatocellular carcinoma

Focus-sensitive relation disambiguation for implicit discourse relation detection

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Frontiers of Computer Science 2019年第6期13卷 1266-1281页

作者： Yu HONG Siyuan DING Yang XU Xiaoxia JIANG Yu WANG Jianmin YAO qiaoming ZHU Guodong ZHOU Natural Language Processing Lab School of Computer Science&TechnologySoochow UniversitySuzhou 215006China Science and Technology on Information Systems Engineering Laboratory Nanjing 210007China

We study implicit discourse relation detection,which is one of the most challenging tasks in the field of discourse *** specialize in ambiguous implicit discourse relation,which is an imperceptible linguistic phenomenon and therefore difficult to identify and *** this paper,we first create a novel task named implicit discourse relation disambiguation(IDRD).Second,we propose a focus-sensitive relation disambiguation model that affirms a truly-correct relation when it is triggered by focal sentence *** addition,we specifically develop a topicdriven focus identification method and a relation search system(RSS)to support the relation ***,we improve current relation detection systems by using the disambiguation *** on the penn discourse treebank(PDTB)show promising improvements.

关键词： Implicit discourse relation focus-sensitive implicit relation disambiguation topic-driven focus identification

Dynamic evolutions of ecological carrying capacity in poor areas using ecological footprint model at Ruyang County of China

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International Journal of Agricultural and Biological Engineering 2017年第2期10卷 140-150页

作者： Wang Jun Zhang qiaoming Zou Chunjing Wang Jinxin Li Yongsheng Wang Mingchun College of Forestry Northwest A&F UniversityYangling 712100China College of Forestry Henan University of Science and TechnologyLuoyangHenan 471003China School of Life Science East China Normal UniversityShanghai 200241China The Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration Shanghai 200241China College of Natural Resources and Environment Northwest A&F UniversityYangling 712100China College of Forestry Henan Agricultural UniversityZhengzhou 450002China

In this study,the ecological footprint(EF)from 2004 to 2013 of a poor county chosen from Central China was measured and analyzed by using the methodology and theory of *** results showed that in the past 10 years,the county’s ecological footprint per capita was growing gradually,increasing from 0.7053 hm^(2)in 2004 to 1.4473 hm^(2)in 2013,with growth clearly accelerated in recent *** the same period,the ecological carrying capacity per capita reduced from 0.6351 hm^(2)to 0.5018 hm^(2).Additionally,regional development had been in a state of ecological deficit,per capita ecological deficit increased from 0.0702 hm^(2)to 0.9456 hm^(2).This led to contradictions between regional socio-economic development and sustainability of natural ecosystems,meaning the development of the region is *** to reduce the ecological deficit were proposed to coordinate regional industrialization,urbanization,ecological environmental protection,and to promote the sustainable development in the region(*** industrial structure and consumption structure,promoting economic transformation,scientific planning and management of land).The results could provide a scientific basis for studies on ecological carrying capacity of the poor areas in Central China.

关键词： ecological footprint ecological carrying capacity ecological deficit sustainable development poor areas in China