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      • KCI등재

        当代中国爱称的使用现况及社会文化因素

        Mingming Qi 祁,나민구 한국중국언어학회 2019 중국언어연구 Vol.0 No.85

        In recent years, with the development of society, social structure, interpersonal relationships, social ethics and people's value have all undergone changes, which has, as a consequence, enriched people's terms of address. Hypocorisms are usually used to express love and endearment, and extensively used in daily communications. This paper collects and organizes different hypocoristic terms that are used in contemporary Chinese society and analyzes their scenarios and rules of use from socio linguistics' perspective to identify people's using preference. Based on this, it further explores how hypocorism reflect and generate social implication in the context of social and cultural constraints, moreover makes forecast about their evolution. Finally, this paper predicts the development trend of nicknames, and believes that the referential function of Hypocorism in the future will be weaker than communication. The constraint of the choice of symmetry in the power relationship is also relatively weak. Relatives' salutation will continue to be generalized, thus filling the lack of Chinese general names in a personalized and diversified form. 近年来,随着社会发展变化,社会结构、人际关系、社会伦理观念及人们的价值观都在发生改变,这也促使人们在使用爱称时表现形式更加丰富。近些年爱称的使用对象和范围逐渐扩大,过去只当作名称用的词语很多也开始进入到爱称的体系中来。因此,本文希望从社会语言学角度,对当代中国社会正在使用的爱称的表现形式进行归纳和整理,通过分析其使用情况找出人们使用爱称的一种倾向性结论。本文以现代汉语普通话中使用的爱称表达为主要研究对象,同时利用北京语言大学语料库中心 北京语言大学语料库中心(BLCU Corpus Center),简称BCC。http://www.blcu.edu.cn (以下简称BCC)的相关语料搜集例句,以便对爱称的表现形式和使用情况进行整理和归纳。比起对爱称表现形式进行穷尽式的描写,本文更加关注的是通过分析当代社会人们是如何创造性地利用爱称来完善言语交际以及社会认同,并探讨影响爱称生成的制约因素及其社会意义。

      • KCI등재

        Thermal history of the Jurassic marine sequences in the Qiangtang Basin, northern Tibetan Plateau: implication for the hydrocarbon preservation

        Mingming Fei,Licheng Wang,Yalin Li,Yushuai Wei 한국지질과학협의회 2016 Geosciences Journal Vol.20 No.4

        The Jurassic marine sequences of the Qiangtang Basin in the northern part of the Tibet Plateau have the best petroleum exploration prospect. The prototype basin has undergone multi-stage and complicated tectonic events since the Cretaceous, especially the mid-Cretaceous tectonic event and the Cenozoic uplift of Tibetan Plateau. However, little information about the impact of these tectonic events on petroleum preservation has been done. In this paper, the burial and thermal histories modeling using vitrinite reflectance (Ro) are used to characterize the impact. The results showed that there is a regional falling of palaeotemperature in the Qiangtang Basin during the mid-Cretaceous indicating a regional tectonic event caused by the collision between Lhasa and Qiangtang blocks. However, the Cenozoic tectonic event caused by the uplift of Tibetan Plateau since 30 Ma was only recorded in the Southern Qiangtang Depression and not obvious in the Northern Qiangtang Depression, which indicates that uplift-denudation caused by the mid-Cretaceous tectonic event was extensive in whole Qiangtang Basin and more significant to the hydrocarbon accumulation than those in the Cenozoic. The event could damage the previously formed hydrocarbon traps and caused the leaking of cap-rocks for the dramatically denudation especially in the Southern Qiangtang Depression. We speculated that the Northern Qiangtang Depression has the lower thickness of denudation and barely influenced by the Cenozoic tectonic events and thus is primary exploration target for gas or gas hydrate.

      • KCI등재

        Active damping strategy with differential feedback of grid‑side inductor voltage for LCL‑filtered grid‑connected inverters

        Mingming Li,Hua F. Xiao,Ming Cheng 전력전자학회 2022 JOURNAL OF POWER ELECTRONICS Vol.22 No.2

        Active damping (AD) methods with extra feedback provide a high rejection of the resonance peak caused by LCL-filters, and have the advantages of simple implementation and strong robustness. Among them, capacitor current proportional-feedback AD has been proved to be effective and robust with only a proportional calculation. However, a large capacitive current pulsation restricts the detection accuracy. Based on a theoretical derivation, the same damping effect but with a better rejection of grid harmonic can be obtained by grid-side inductor voltage differential-feedback AD. However, the measured inductor voltage usually contains a parasitic resistance voltage that is difficult to separated, and it deteriorates the performance of LCL-filters. To solve this problem, a differential-negative proportional method based on the vector relationship between the voltages of the grid-side inductor and its parasitic resistance is proposed in this paper. In addition, the influence of control delays is considered and a solution is given. Experimental results based on a 3 kW LCL-type grid-connected inverter prototype are provided to verify the effectiveness of the proposed method.

      • KCI등재

        An adaptive Kriging reliability analysis method based on novel condition likelihood function

        Mingming Lu,Huacong Li,Linxiong Hong 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.8

        To carry out the reliability analysis, whose performance functions are presented in a nonlinear form, many studies propose the reliability analysis methods involving the active Kriging model. Though some learning functions have been developed to refine the Kriging model around the limit state surface (LSS) effectively, most of them rely on the Kriging predictor and its variance. In this research, a new learning function, formed by the combination of the conditional likelihood function and clustering constrain function through adaptive weight coefficient, is raised to reconstruct Kriging by the candidate samples near the LSS. With the conditional likelihood function, the likelihood that the Kriging predictor reaches the LSS mainly contributes to the selection of the best next point. Three numerical applications with different complexities are used to investigate the validity of the proposed reliability method. In addition, the performance of the proposed reliability method is tested by an engineering application.

      • KCI등재

        Performance Testing and Comparison of Buckling-restrained Braces with H and Crisscross Cross Section Unrestrained Segments

        Mingming Jia,Lanhui Guo,Dagang Lu 한국강구조학회 2014 International Journal of Steel Structures Vol.14 No.4

        Buckling-restrained braces (BRBs) deliver ductile, stable, and repeatable hysteretic behavior. The plastic deformationcapacity of the BRBs indicates the good indexes both in terms of ultimate deformation and in terms of energy dissipationcapacity. In this paper, the load-carrying elements of BRBs were fabricated with steel (Chinese Q235), and four layers of plasticfilm (0.2 mm in thickness) were used as unbounded materials to prevent the buckling of inner cores in higher modes andprovide spaces to facilitate its lateral expansion in case of compression. The differences of ultimate compression and tensionloads were controlled in a small range. The transformation of the unrestrained segment’s section from crisscross shape to Hshape can significantly improve the moment-resistance capacity of the unrestrained segment, avoiding buckling instabilityeffectively due to evident moment stiffness enhancement. The experimental results of pseudo-static tests (PSTs) under cyclicload indicate: BRB with H cross section unrestrained segments can undergo fully-reversed axial yield cycles without loss ofstiffness or strength, which have large ductility and superior seismic energy dissipation ability. There is obvious strainintensification in tension and compression phases. But there is evident decreasing of stiffness and strength on BRB withcrisscross section unrestrained segments due to the buckling of unrestrained segment under compression, the ductility andenergy dissipation ability decline distinctly.

      • KCI등재후보

        Capacity Analysis of Centralized Cognitive Radio Networks for Best-effort Traffics

        ( Mingming Lin ),( Xuemin Hong ),( Jin Xiong ),( Ke Xue ),( Jianghong Shi ) 한국인터넷정보학회 2013 KSII Transactions on Internet and Information Syst Vol.7 No.9

        A centralized cognitive radio (CR) network is proposed and its system capacity is studied. The CR network is designed with power control and multi-user scheduling schemes to support best-effort traffics under peak interference power constraints. We provide an analytical framework to quantify its system capacity, taking into account various key factors such as interference constraints, density of primary users, cell radius, the number of CR users, and propagations effects. Furthermore, closed-form formulas are derived for its capacities when only path loss is considered in the channel model. Semi-analytical expressions for the capacities are also given when more realistic channel models that include path loss, shadowing, and small-scale fading are used. The accuracy of the proposed analytical framework is validated by Monte Carlo simulations. Illustrated with a practical example, the provided analytical framework is shown to be useful for the strategic planning of centralized CR networks.

      • A Focused Crawler URL Analysis Algorithm based on Semantic Content and Link Clustering in Cloud Environment

        Mingming Li,Chunlin Li,Chao Wu,Youlong Luo 보안공학연구지원센터 2015 International Journal of Grid and Distributed Comp Vol.8 No.2

        Currently, the efficiency of the existing focused crawlers is not high because of their unsatisfactory precision. In this article, we analyze the URL analysis methods of the existing focused crawlers, and propose a URL analysis algorithm based on the semantic content and link clustering in cloud environment. In this algorithm, the download URLs are clustered with the philosophy of clustering on the basis of VSM to improve the precision of the focused crawler according to the correlation between download URLs and new URLs. The algorithm is evaluated on Heritrix3.10 compared with Best First Search algorithm and Shark Search algorithm. The experiment results demonstrate that the algorithm proposed can collect web pages related to the given topic accurately and effectively.Moreover, the algorithm has a good ability of learning which proves the possibility of this algorithm.

      • KCI등재

        Experimental study on high gravity dam strengthened with reinforcement for seismic resistance on shaking table

        Mingming Wang,Jianyun Chen,Shuli Fan,Shaolan Lv 국제구조공학회 2014 Structural Engineering and Mechanics, An Int'l Jou Vol.51 No.4

        In order to study the dynamic failure mechanism and aseismic measure for high concrete gravity dam under earthquake, the comparative models experiment on the shaking table was conducted to investigate the dynamic damage response of concrete gravity dam with and without the presence of reinforcement and evaluate the effectiveness of the strengthening measure. A new model concrete was proposed and applied for maintaining similitude with the prototype. A kind of extra fine wires as a substitute for rebar was embedded in four-points bending specimens of the model concrete to make of reinforced model concrete. The simulation of reinforcement concrete of the weak zones of high dam by the reinforced model concrete meets the similitude requirements. A tank filled with water is mounted at the upstream of the dam models to simulate the reservoir. The Peak Ground Acceleration (PGA) that induces the first tensile crack at the head of dam is applied as the basic index for estimating the overload capacity of high concrete dams. For the two model dams with and without strengthening tested, vulnerable parts of them are the necks near the crests. The results also indicate that the reinforcement is beneficial for improving the seismicresistant capacity of the gravity dam.

      • KCI등재

        Three-dimensional dynamics simulation analysis of high clearance sprayer with road excitation

        Mingming Xing,Xiaoguang Li,Kaifeng Xue,Chengmao Zhang,Zongxiang Hou 대한기계학회 2020 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.34 No.4

        The stability of a high clearance sprayer (HCS) can be considered in developing modern agriculture. We built a three-dimensional dynamics model of HCS with road excitation considering the influence of complex terrain on the whole vehicle vibration. The numerical simulation method was proposed to solve differential equations based on the Newmark-β method. The response curves of whole vehicle in the time and frequency domain response were analyzed. The simulation results show that the vibration amplitude difference of left and right wheel is bigger than amplitude difference of right and rear wheel. The average amplitude of roll motion is bigger than pitching motion. The reason is that since the man-machine seat is set on the left of whole vehicle, an additional roll torque is brought. Besides, the displacement amplitude of whole vehicle is bigger than man-machine seat. The reason is that the vibration absorption system of seat can reduce vibration effectively. In amplitude-frequency response curves, the multiple resonance points occur with the road excitation given in this paper. The maximum response amplitude of angle velocity and acceleration of pitching motion is bigger than roll motion. This study has an important theoretical and practical value for structure dynamic optimization of HCS.

      • KCI등재

        Capillary Electrochromatography with Liquid Crystal Crown Ether Modified Hybrid Silica Monolith for Analysis of Imidacloprid and Carbendazim in Tomatoes

        Mingming Wang,Rui Feng,Jing Shen,Hao Chen,Zhaorui Zeng 대한화학회 2012 Bulletin of the Korean Chemical Society Vol.33 No.7

        This study describes the ability of capillary electrochromatography (CEC) for the determination of imidacloprid and carbendazim in tomato samples. A novel liquid crystal crown ether modified hybrid silica monolithic column was synthesized, characterized and developed as separation column for the first time. Baseline separation of imidacloprid and carbendazim could be achieved using a mobile phase containing 90% (v/v) 20 mmol/L phosphate buffer (pH 7.0) and 10% (v/v) acetonitrile. The matrix matched calibration curves were linear with correlation coefficient r2 > 0.9998 in the range of 0.20-10.00 mg/L. The limits of detection for imidacloprid and carbendazim were 0.061 and 0.15 mg/kg, respectively, which were below the maximum residue limits established by the European Union as well as Codex Alimentarius. Average recoveries for imidacloprid and carbendazim varied from 101.6-108.0% with relative standard deviations lower than 6.3%. This method was applied to the analysis of tomatoes collected from local markets.

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