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海外所藏及国内《联目》未载之本草古籍述略 被引量:2
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作者 郑金生 《中华医史杂志》 CAS 2001年第1期7-12,共6页
简介 14种海外所藏及国内《联目》未载之本草古籍的作者、成书年代、卷数、分类、药物数目、内容特色、收藏地点、复制回国与否等情况。 14种本草书中 ,成书于元代者 2种 ,明代 9种 ,清代 3种。
关键词 本草古籍 《联目》 中国本草
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晚清鼠疫专著书名人名及版本相关问题辨疑 被引量:1
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作者 李禾 李建梅 《中医文献杂志》 2005年第4期18-21,共4页
对晚清系列鼠疫中医防治专著之间的关系、书名、作者名、版本记录中存在的疑问和错误,作一初步疏理介绍和辨析,列举“吴子存”、“吴学存”、“吴有存”、“吴宗宣”、“罗子存”、“罗芷园”等人名误载,吴氏《治鼠疫法》误作《鼠疫治... 对晚清系列鼠疫中医防治专著之间的关系、书名、作者名、版本记录中存在的疑问和错误,作一初步疏理介绍和辨析,列举“吴子存”、“吴学存”、“吴有存”、“吴宗宣”、“罗子存”、“罗芷园”等人名误载,吴氏《治鼠疫法》误作《鼠疫治法》的书名误记及各书书名与作者间的张冠李戴现象,疏理表述各书成书时间及传承关系,指出《联目》版本收载的错误,提出一些仍疑而未决的问题。 展开更多
关键词 晚清时期 鼠疫 医学文献 中医学 《治鼠疫法》 《联目》
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Fast FP-Growth for association rule mining 被引量:1
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作者 杨明 杨萍 +1 位作者 吉根林 孙志挥 《Journal of Southeast University(English Edition)》 EI CAS 2003年第4期320-323,共4页
In this paper, we propose an efficient algorithm, called FFP-Growth (shortfor fast FP-Growth) , to mine frequent itemsets. Similar to FP-Growth, FFP-Growth searches theFP-tree in the bottom-up order, but need not cons... In this paper, we propose an efficient algorithm, called FFP-Growth (shortfor fast FP-Growth) , to mine frequent itemsets. Similar to FP-Growth, FFP-Growth searches theFP-tree in the bottom-up order, but need not construct conditional pattern bases and sub-FP-trees,thus, saving a substantial amount of time and space, and the FP-tree created by it is much smallerthan that created by TD-FP-Growth, hence improving efficiency. At the same time, FFP-Growth can beeasily extended for reducing the search space as TD-FP-Growth (M) and TD-FP-Growth (C). Experimentalresults show that the algorithm of this paper is effective and efficient. 展开更多
关键词 data mining frequent itemsets association rules frequent pattern tree(FP-tree)
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An adaptive waveform-detection threshold joint optimization method for target tracking 被引量:5
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作者 王宏强 夏洪恩 +1 位作者 程永强 王璐璐 《Journal of Central South University》 SCIE EI CAS 2013年第11期3057-3064,共8页
The joint optimization of detection threshold and waveform parameters for target tracking which comes from the idea of cognitive radar is investigated for the modified probabilistic data association(MPDA)filter.The tr... The joint optimization of detection threshold and waveform parameters for target tracking which comes from the idea of cognitive radar is investigated for the modified probabilistic data association(MPDA)filter.The transmitted waveforms and detection threshold are adaptively selected to enhance the tracking performance.The modified Riccati equation is adopted to predict the error covariance which is used as the criterion function,while the optimization problem is solved through the genetic algorithm(GA).The detection probability,false alarm probability and measurement noise covariance are all considered together,which significantly improves the tracking performance of the joint detection and tracking system.Simulation results show that the proposed adaptive waveform-detection threshold joint optimization method outperforms the adaptive threshold method and the fixed parameters method,which will reduce the tracking error.The average reduction of range error between the adaptive joint method and the fixed parameters method is about 0.6 m,while that between the adaptive joint method and the adaptive threshold only method is about 0.3 m.Similar error reduction occurs for the velocity error and acceleration error. 展开更多
关键词 cognitive radar adaptive waveform selection target tracking joint optimization detection-tracking system
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The distribution of deep source rocks in the GS Sag:joint MT-gravity modeling and constrained inversion 被引量:6
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作者 Shi Yan-Ling Hu Zu-Zhi +4 位作者 Huang Wen-Hui Wei Qiang Zhang Sheng Meng Cui-Xian Ji Lian-Sheng 《Applied Geophysics》 SCIE CSCD 2016年第3期469-479,579,共12页
The coal-bearing strata of the deep Upper Paleozoic in the GS Sag have high hydrocarbon potential. Because of the absence of seismic data, we use electromagnetic (MT) and gravity data jointly to delineate the distri... The coal-bearing strata of the deep Upper Paleozoic in the GS Sag have high hydrocarbon potential. Because of the absence of seismic data, we use electromagnetic (MT) and gravity data jointly to delineate the distribution of deep targets based on well logging and geological data. First, a preliminary geological model is established by using three-dimensional (3D) MT inversion results. Second, using the formation density and gravity anomalies, the preliminary geological model is modified by interactive inversion of the gravity data. Then, we conduct MT-constrained inversion based on the modified model to obtain an optimal geological model until the deviations at all stations are minimized. Finally, the geological model and a seismic profile in the middle of the sag is analysed. We determine that the deep reflections of the seismic profile correspond to the Upper Paleozoic that reaches thickness up to 800 m. The processing of field data suggests that the joint MT-gravity modeling and constrained inversion can reduce the multiple solutions for single geophysical data and thus improve the recognition of deep formations. The MT-constrained inversion is consistent with the geological features in the seismic section. This suggests that the joint MT and gravity modeling and constrained inversion can be used to delineate deep targets in similar basins. 展开更多
关键词 Joint MT-gravity modeling constrained inversion deep target
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The Four Intersection-and-Difference Model for Line-Line Topological Relations
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作者 DENG Min LI Zhilin LI Guangqiang ZHANG Xuesong 《Geo-Spatial Information Science》 2007年第4期293-298,共6页
The description of line-line topological relations is still an unsolved issue although much effort has been done. The problem is involved in many practical applications such as spatial query, spatial analysis and cart... The description of line-line topological relations is still an unsolved issue although much effort has been done. The problem is involved in many practical applications such as spatial query, spatial analysis and cartographic generalization. To develop a sound and effective approach to describe line-line relations, it is first necessary to define the topology of an individual line, i.e., local topology. The concept of connective degree is used for the identification of topological differences in the geometric structure of a line. The general topological definition of a line is given, i.e., endpoints set and interior point set. This definition can be applied to the embedded spaces of different dimensions, whether co-dimension is equal to or larger than zero. On this basis, a generic model called the 4 intersection-and-difference is set up for the description of basic line-line topological relations, upon which a conceptual neighborhood graph is built with consideration of topological distance, it is concluded that the proposed model can represent the property of topological changes, and basic relations between line segments in IR^1 and IR^2. 展开更多
关键词 topological relations line object topological distance conceptual neighborhood CO-DIMENSION
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Joint Optimization on Energy and Delay for Target Tracking in Internet of Things 被引量:4
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作者 黎羴 范春晓 《China Communications》 SCIE CSCD 2011年第1期20-27,共8页
Network and communications models are built for target tracking and pursuing in the Internet of Things (IoT).According to these models,two tracking schemes which jointly optimize the pursuing energy and delay are prop... Network and communications models are built for target tracking and pursuing in the Internet of Things (IoT).According to these models,two tracking schemes which jointly optimize the pursuing energy and delay are proposed.The merits of these schemes are that they can enhance energy efficiency of both the pursuing route and communication in the network.Moreover,experimental results are provided to demonstrate the benefits of the proposed schemes which will be used as optimization schemes for the IoT tracking service. 展开更多
关键词 Internet of Things sensor network target tracking ROUTING DELAY
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Genetically identified complete hydatidiform mole coexisting with a normal fetus following IVF-ET 被引量:1
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作者 Sui Jianzhong Sun Xiaofang 《Journal of Medical Colleges of PLA(China)》 CAS 2009年第6期360-365,共6页
A complete hydatidiform mole coexisting with a fetus following in vitro fertilization and embryo transfer (IVF-ET) is a rare event. The diagnosis is often not easy because of the morphological similarity to a partial ... A complete hydatidiform mole coexisting with a fetus following in vitro fertilization and embryo transfer (IVF-ET) is a rare event. The diagnosis is often not easy because of the morphological similarity to a partial mole, but important to the treatment. We present a recent case in which STR polymorphism analysis clearly revealed a different genetic origin for the fetal and molar parts. STR polymorphisms on 15 variable number tandem repeat loci and a gender-determination locus, which were detected by polymerase chain reaction, indicating that the cord/placenta and molar tissue were parental and androgenous, respectively. During follow-up, the patient developed persistent gestational trophoblastic tumor (GTT) which was successfully treated with chemotherapy. In this case, STR polymorphism analysis exactly diagnosed a twin pregnancy consisting of a complete hydatidiform mole and a fetus. 展开更多
关键词 STR Complete hydatidiform mole In vitro fertilization Twin pregnancy
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Minority Protection in Proceedings for the Settlement of Disputes Between Shareholders 被引量:1
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作者 Nore Delang 《Sociology Study》 2015年第6期452-468,共17页
“A limited company is more than a mere judicial entity, with a personality in law of its own: Behind it, or amongst it, there are individuals, with rights, expectations and obligations inter se”. The competitive at... “A limited company is more than a mere judicial entity, with a personality in law of its own: Behind it, or amongst it, there are individuals, with rights, expectations and obligations inter se”. The competitive attitude of the member states of the EU (European Union), to become the most attractive for companies results in law reforms aiming at more flexible conflict between shareholders. Besides, the economic objective of avoiding a company's dissolution, the English, Dutch, and Belgian exit proceedings for the settlement of disputes between shareholders set up a social objective: protecting the interests of the minority shareholder of a private limited company. The paper consists of four chapters. The introduction lays out the necessity of buy-outs for shareholders of a private limited company. The first chapter describes the different facts justifying the buy-out of a shareholder on the basis of serious grounds. The second chapter presents the findings of a comparative research of the valuation of the shares transferred in an English, Dutch, and Belgian procedure. Finally, the conclusion summarises in which way the English, Dutch, and Belgian legal system protect the interests of the minority shareholder of a private limited company. 展开更多
关键词 Company law settlement of disputes between shareholders social objective of exit proceedings unfair prejudice procedure fairness of the price for compulsory transferred shares reflective loss
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Electricity Pricing for Natural Gas CHP Projects The Higher, the Better?
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作者 Chen Guowei Guo Xicheng He Chun 《Electricity》 2011年第3期23-26,共4页
Regarding the state's policy that gives a higher on-grid electricity price to natural gas CHP (combined heat and power) projects, this paper studies the effect of it on the operation of those projects by theoretic... Regarding the state's policy that gives a higher on-grid electricity price to natural gas CHP (combined heat and power) projects, this paper studies the effect of it on the operation of those projects by theoretical analysis and a case study. It concludes that on-grid electricity price on the high side, compared to heat price, will lead power plants to produce more electricity but less heat, thus causing decrease of the plants' thermal eff iciency and harm to energy saving of the whole society. 展开更多
关键词 combined heat and power (CHP) natural gas power generation on-grid electricity price energy saving
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Influence of Institutional Support on Lecturers' Preparedness for E-learning at the University of Nairobi, Kenya
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作者 Nicholas Kut Ochogo Charles Mallans Rambo Joyce Kanini Mbwesa Paul Amollo Odundo 《Chinese Business Review》 2014年第12期757-773,共17页
Institutional support is an essential antecedent for lecturer's preparedness for e-learning. The purpose of this study was to determine the influence of institutional support through appropriate training programs and... Institutional support is an essential antecedent for lecturer's preparedness for e-learning. The purpose of this study was to determine the influence of institutional support through appropriate training programs and budgetary allocation on lecturers' preparedness for e-learning at the University of Nairobi. A cross-sectional survey design was applied to source data from 212 lecturers and 96 administrative staff. Both quantitative and qualitative techniques were applied to process, analyze, and interpret the data. Quantitative analysis yielded descriptive statistics as well as cross tabulations with Chi-square (x^2) statistic. The study found lack of significant relationship between lecturer's preparedness for e-learning and knowledge of the existence of an Information and Communication Technology (ICT) training program. The existing training program was still underdeveloped in terms of funding and strategies. Lecturers' preparedness for e-learning was also not significantly associated with perceived effectiveness of the existing training program; but was significantly related to training in software tools, as well as the source of funding for training. Although a team of ICT experts has been mandated to help academic staff prepare for e-learning, the team's functionality was constrained by under-funding and multiple roles. Lecturer's preparedness for e-learning also significantly associated with perceived adequacy of budgetary allocation for ICT program at the departmental level. Under-funding was a key factor constraining access to computers at the workplace, reliable internet connectivity and timely technical support, all of which significantly associated with lecturers' preparedness for e-learning. Universities in resource-poor settings should consider creating necessary partnerships to create avenues for information and resource sharing, revamp existing training programs with fmancial and human resources, create linkages with funding institutions, as well as improve budgetary allocation to ensure universal access to functional computers at the workplace, reliable internet connectivity and timely technical support. 展开更多
关键词 institutional support PREPAREDNESS E-LEARNING training program budgetary allocation
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Political Advertising and Propaganda Within Spiral of Silence-Agenda Setting Theory
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作者 Hakan ALP 《Journalism and Mass Communication》 2016年第1期12-18,共7页
Political communication is an interactive process by which politicians transmit information and political discourse to voters and receive feedback through media. This communication process is a two way process of comm... Political communication is an interactive process by which politicians transmit information and political discourse to voters and receive feedback through media. This communication process is a two way process of communication between politicians and voters by which, on the one hand, politicians transmit their thoughts and wills to voters, and on the other hand voters communicate their opinions to politicians, after interpreting, in different ways, the messages that they received. The key objective of political communication is to persuade or influence and cause voters, who are the target audience, to vote for a particular party by convincing them. In order to ensure the smooth operation of political communication processes it is essential that the parliament, government, political parties, non-governmental organizations, environmentalist groups and pressure groups also actually take part in this process The decisive and transformative power of mass media and advertising phenomenon on the political systems has grown to become more and more influential in the recent years. The use of information considerably increases in line with the increase in the use of propaganda. No doubL this information age has turned the world into "a universal village". On the one hand, the concentration in media and on the other hand rapid developments in Internet technologies expose societies to the bombardment of messages. Being exposed to or bombarded by numerous varieties of messages in their daily lives lead to the creation of variabilities and instabilities in individual's behaviors. Accordingly, political organizations while trying to convey messages to masses through political communication and advertising have to deliver systematic, comprehensible and influential messages by taking the advantage of visualization as much as possible. 展开更多
关键词 political advertising spiral of silence agenda setting COMMUNICATION
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Selecting Suitable Heat Source in Refinery for Multi-effect Distillation Based on Grey System Theory 被引量:1
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作者 Xue Jianliang Zhao Dongfeng +3 位作者 Li Shi Liu Wei Shen Chanchan Chen Lu 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2013年第1期66-72,共7页
For dealing with high-salinity wastewater in the refinery, the high cost of driving heat source is the disadvantage of multi-effect distillation (MED) so it is of great importance to evaluate the performance of low-te... For dealing with high-salinity wastewater in the refinery, the high cost of driving heat source is the disadvantage of multi-effect distillation (MED) so it is of great importance to evaluate the performance of low-temperature heat source for conducting MED and select the optimal temperature for it. Both the MED and the low-temperature heat sources studied in this paper were from a typical refinery located in northwestern China. Besides, a new methodology to evaluate heat sources as the optimal candidate was proposed for MED based on the grey system theory. Five process units, which included 18 fluids of the refinery, were named as the evaluation projects. Three factors, which included safety effects, total costs and characteristics of low-temperature heat sources were determined as the evaluation indexes, the values of which were established through the analyses. The results obtained through the grey correlation analyses have revealed that the grey correlation degrees of these units were 0.661(AVDU), 0.732 (#1 FCCU), 0.618 (#2 FCCU), 0.535 (#1 DCU), and 0.572 (#2 DCU), respectively. Thus, the optimal heat source was provided from #1 FCCU. Through further analyses of the fluids from #1 FCCU, the grey correlation degrees of the fluids were 0.597 (oil and gas at top of tower), 0.714 (recycle oil and gas), and 0.512 (diesel), respectively. Thus, the optimal heat source was the oil and gas recycle stream. 展开更多
关键词 multi-effect distillation grey system theory heat recovery high-salinity wastewater REFINERY
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Including Co-benefits in the CDM of the Power Sector: A Case Study for India
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作者 Ryo Eto Akinobu Murata +1 位作者 Yohji Uchiyama Keiichi Okajima 《Journal of Energy and Power Engineering》 2012年第12期1925-1934,共10页
This study examines the effects of the inclusion of co-benefits on the potential capacity of advanced thermal plants with a linear programming model in the CDM (clean development mechanism) in India's power sector.... This study examines the effects of the inclusion of co-benefits on the potential capacity of advanced thermal plants with a linear programming model in the CDM (clean development mechanism) in India's power sector. It investigates how different marginal damage costs of air pollutants affect the potential capacity of NGCC (natural gas combined cycle) and IGCC (integrated gasification combined cycle) by CDM projects with a scenario analysis. Three results are found from this analysis. First, IGCC and NGCC are installed at lower CER (certified emission reductions) prices when the marginal damage costs of air pollutants are added to the CER prices. Second, the CER prices of $1/tCO2 correspond with the sum of marginal damage costs of air pollutants of $150/t for NGCC and $30/t for IGCC in India's power sector. Thus, including the co-benefits into CDM attracts developing countries such as India where coal resource is redundant. Third, the SOx and NOx reduction benefits attained from the CDM projects become large in a grid where IGCC is installed. 展开更多
关键词 Advanced thermal plants clean development mechanism power generation programming model INDIA co-benefit.
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Feasibility of College Japanese Major and Japanese Joint Training Projects
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作者 ZOU Wei 《International Journal of Technology Management》 2016年第1期48-49,共2页
In recent years, university exchanges between China and Japan is more active, we can see that in the joint efforts of China and Japan, the scale of cooperation is expanding, understanding and friendship between the yo... In recent years, university exchanges between China and Japan is more active, we can see that in the joint efforts of China and Japan, the scale of cooperation is expanding, understanding and friendship between the young people are gradually deepened. The long- term stability of University conducted exchanges and cooperation in education with Japan is the concrete manifestation of China' s opening-up. Therefore, what' s the meaning of joint training of undergraduate education in universities? This paper studies on "2 + 2" program between our college and the west of the international University of Japan. We analysis the favorable and unfavorable factors in joint training programs, clarify the necessity and feasibility of acting joint training programs, and provide some reference for the development of our joint training program. 展开更多
关键词 Undergraduate education CO-CULTURE Favorable factors FEASIBILITY Teaching model
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Power loss reduction of distribution systems using BFO based optimal reconfiguration along with DG and shunt capacitor placement simultaneously in fuzzy framework 被引量:1
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作者 M.Mohammadi A.Mohammadi Rozbahani S.Bahmanyar 《Journal of Central South University》 SCIE EI CAS CSCD 2017年第1期90-103,共14页
In distribution systems,network reconfiguration and capacitor placement are commonly used to diminish power losses and keep voltage profiles within acceptable limits.Moreover,the problem of DG allocation and sizing is... In distribution systems,network reconfiguration and capacitor placement are commonly used to diminish power losses and keep voltage profiles within acceptable limits.Moreover,the problem of DG allocation and sizing is great important.In this work,a combination of a fuzzy multi-objective approach and bacterial foraging optimization(BFO) as a meta-heuristic algorithm is used to solve the simultaneous reconfiguration and optimal sizing of DGs and shunt capacitors in a distribution system.Each objective is transferred into fuzzy domain using its membership function.Then,the overall fuzzy satisfaction function is formed and considered a fitness function inasmuch as the value of this function has to be maximized to gain the optimal solution.The numerical results show that the presented algorithm improves the performance much more than other meta-heuristic algorithms.Simulation results found that simultaneous reconfiguration with DG and shunt capacitors allocation(case 5) has 77.41%,42.15%,and 56.14%improvements in power loss reduction,load balancing,and voltage profile indices,respectively in 33-bus test system.This result found 87.27%,35.82%,and 54.34%improvements of mentioned indices respectively for 69-bus system. 展开更多
关键词 network reconfiguration distributed generation (DG) capacitor banks fuzzy framework bacterial foragingoptimization
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An Online English Course Teaching Model Based on Scene Simulation 被引量:1
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作者 DAI Huili 《International English Education Research》 2018年第1期13-16,共4页
In order to improve the English online courses teaching scene adaptability, optimize the online English teaching mode, improve the quality of English teaching, an English online course teaching platform is proposed ba... In order to improve the English online courses teaching scene adaptability, optimize the online English teaching mode, improve the quality of English teaching, an English online course teaching platform is proposed based on scene simulation. B/S client communication protocol is constructed in network transport layer, and the scene simulation model of English Online Course Teaching is established, online English teaching platform designed in this paper is constructed based on the sensing layer, network layer and application layer. A data processing center is constructed in the B/S structure and the network environment, Open Core kernel is used to realize the optimization of teaching model of English online courses, improve the teaching platform of online courses, and improve the scene adaptation ability. The test results show that the platform for online English teaching has better independent learning ability, the effectiveness of online English course teaching is better, test objects have higher satisfaction with English Online Course Teaching. 展开更多
关键词 Scene simulation ENGLISH Online course teaching Platform design
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The Game-Theoretical Approach to the Simulation of Sustainable Development Strategies
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作者 Sergii Polumiienko Leonid Rybakov Oleksandr Trofymchuk 《Journal of Earth Science and Engineering》 2013年第5期337-340,共4页
Choosing a strategy for sustainable development is national level aimed at the simultaneous fulfillment of economic, a fundamental problem that requires non-trivial approaches at the social and environmental goals. Th... Choosing a strategy for sustainable development is national level aimed at the simultaneous fulfillment of economic, a fundamental problem that requires non-trivial approaches at the social and environmental goals. This contradiction is possible to be adequately described in the complex game-theoretic models. But analysis of them is complicated by the problems of algorithmic solvability and the payoff functions construction. Also, the volume of data required creates considerable complexity increased by the conditions of situations uncertainty and conflict. At the same time, international organizations, such as UN (United Nations), ITU (International Telecommunications Union), are widely used index system. Indices, built on the aggregation of elementary indicators, allow the estimation of the components of the system and its overall development. The paper discusses the basic concepts of game-theoretic approach to the problems of finding strategies for sustainable development, using indicative analysis techniques. In the proposed approach, estimating of sustainability is considered as the result of finding the optimal values of the payoff functions in general game-theoretical model where the players are matched indices. The interests of the player are to increase of the corresponding index and the optimal situation is implemented as a set of optimal payoff functions values. This allows switching from processing of large amounts of data describing the behavior of the ecological-economic system by the aid of indicators to aggregate estimations, which significantly reduce the sample, and also facilitates the interpretation of the results. 展开更多
关键词 Game-theoretical modeling indicative analysis balanced sustainable development.
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对太邑友文堂版《傅青主女科》刊刻年代的质疑 被引量:1
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作者 沈华 赵怀舟 +1 位作者 王小芸 张玲 《中华医史杂志》 CAS 2007年第4期243-243,共1页
《傅青主女科》(以下简称《女科》)重刊本甚多,就《中国中医图书联合目录》(以下简称《联目》)记载达67种之多,还不包括许多民间流传有价值的版本,可见其流传相当广泛。
关键词 《傅青主女科》 《联目》
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Vocal repertoire of the New Zealand kea parrot Nestor notabilis 被引量:2
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作者 Raoul SCHWING Stuart PARSONS Ximena J. NELSON 《Current Zoology》 SCIE CAS CSCD 2012年第5期727-740,共14页
The unique alpine-living kea parrot Nestor notabilis has been the focus of numerous cognitive studies, but its com- munication system has so far been largely neglected. We examined 2,884 calls recorded in New Zealand... The unique alpine-living kea parrot Nestor notabilis has been the focus of numerous cognitive studies, but its com- munication system has so far been largely neglected. We examined 2,884 calls recorded in New Zealand's Southern Alps. Based on audio and visual spectrographic differences, these calls were categorised into seven distinct call types: the non-oscillating 'screech' contact call and 'mew'; and the oscillating 'trill', 'chatter', 'warble' and 'whistle'; and a hybrid 'screech-trill'. Most of these calls contained aspects that were individually unique, in addition to potentially encoding for an individual's sex and age. Additionally, for each recording, the sender's previous and next calls were noted, as well as any response given by conspecifics. We found that the previous and next calls made by the sender were most often of the same type, and that the next most likely pre- ceding and/or following call type was the screech call, a contact call which sounds like the 'kee-ah' from which the bird's name derives. As a social bird capable of covering large distances over visually obstructive terrain, long distance contact calls may be of considerable importance for social cohesion. Contact calls allow kea to locate conspecifics and congregate in temporary groups for social activities. The most likely response to any given call was a screech, usually followed by the same type of call as the ini- tial call made by the sender, although responses differed depending on the age of the caller. The exception was the warble, the kea's play call, to which the most likely response was another warble. Being the most common call type, as well as the default response to another call, it appears that the 'contagious' screech contact call plays a central role in kea vocal communication and social cohesion [Current Zoology 58 (5): 727-740, 2012]. 展开更多
关键词 Acoustic signals COMMUNICATION KEA PSITTACIDAE Social behaviour HABITAT
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