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The economic media discourse depends upon a complex web of metaphors, among which WAR metaphor is worthy of special attention. The data used in this study is comprised of 2566 articles (about 1.2 million words) under the "Economy" column of China Daily published in 2014. Critical Metaphor Analysis (CMA) is used as the analytical framework to investigate WAR metaphor in the economic media discourse. This study is governed by the three steps of CMA including metaphor identification, metaphor interpretation and metaphor explanation. The results show that among the selected 62 lemmas, 40 of them have metaphorical instantiations and more than half of all the metaphorical expressions are nouns. Both social resources and individual resources influence metaphor choice. WAR metaphor has the rhetorical function as persuasion, which constructs the cognitive model of competition in the mind of the readers and arouses their emotions; on the other hand, it hides the cooperative principle of economic activities.

As an interactional encounter between a journalist and one or more newsworthy public figures, an interview program is a special type of discourse that is full of evaluative language. This paper sets out to explore evaluation in interview programs from the perspective of appraisal system. The corpus software used in this study is UAM CorpusTool 3.3--annotating software that is able to automatically annotate the grammatical structure and parts of speech of the text, meanwhile allows manual annotation of linguistic features based on various schemes. The results show that the use of attitudinal resources is closely related to speaker's communication strategies. Invoked evaluation and positive appraisal resources are most frequently used in the interview to establish alignment with the audience. As will be explained below, the design of the program process and other information are also sources of evaluation.

From the 1990s, the multimodal turn in discourse studies makes multimodal discourse analysis a popular topic in linguistics and communication studies. An important approach to applying Systemic Functional Linguistics to non-verbal modes is Visual Grammar initially proposed by Kress and van Leeuwen (1996). Considering that commercial advertisement is an indispensable part of the modern society that bears rich meanings worth discussing, this paper analyzes visual components of the advertisement produced by Tmall for the Double Eleven Shopping Carnival from the perspective of Visual Grammar. By analyzing representational, interactive and compositional meaning presented in the advertisement, this article illustrates how visual components serve as a huge attraction to the viewers and effectively justifies the consumption behavior by appealing to the cultural and social state. It also sheds some light on raising the awareness of consumers by presenting how advertisement producers practice psychological manipulation on the viewers.

A historical perspective on economy metaphor can shed new lights on economic thoughts. Based on the TIME Magazine Corpus (TMC), this paper investigates inflation metaphor over 83 years and compares findings against the economic data over the relatively corresponding period. The results show how inflation, an abstract concept and a normal economic phenomenon, is typically understood and explained in a variety of metaphoric expressions, how different types of metaphor structure and reframe our thinking about inflation, and why the usage of inflation metaphor varied over time. This study highlights the importance of historical perspective and the values of diachronic corpus in researching economy metaphor.

Growth is a concept of particular interest for economic discourse. This paper sets out to explore a small corpus of economic growth, which consists of articles from "The Economist". The corpus software used in this study is a web-based tool Wmatrix, an automatic tagging software able to assign semantic field (domain) tags, and to permit the extraction of key words and key semantic domains by applying the keyness calculation to tag frequency lists. The results show that at 99% confidence (or p < 0.01), the cut-off of 6.63 (log likelihood value) indicates that there are 1051 positive keywords (including multiword expressions) and 80 key semantic domains generated from the corpus. It is evident that BRICs or the emerging economies/markets, in particular China and India, are a big concern regarding economic growth over the past years. A number of examples of possible ways forward in teaching methodology are presented.

Central to argumentative writing is the proper use of epistemic devices (EDs), which distinguish writers' opinions from facts and evaluate the degree of certainty expressed in their statements. Important as these devices are, they turn out to constitute a thorny area for non-native speakers (NNS). Previous research indicates that Chinese EFL learners differ significantly from the native speakers (NS) in marking epistemic modality. One problem of previous studies is that the essay topics are not well controlled, which makes it somewhat ambiguous as to whether the observed linguistic discrepancies are caused by the NNS/NS difference or by the topic differences. This paper sets out to explore much more comparable data from International Corpus Network of Asian Learners of English (ICNALE). The results show that while both NS group and NNS groups are heavily dependent on a restricted range of items, the manipulation of epistemic modality is particularly problematic for the L2 students who employ syntactically simpler constructions and rely on a more limited range of devices, as already discovered in the previous studies. Nevertheless, this study also shows that the most proficient L2 students modify their statements with less certainty markers and more tentative expressions than do their L1 counterparts, and that all learner groups, regardless of their overall language proficiency, use less boosters than L1 writers, which is in sharp contrast with previous studies. The ability to mark epistemic modality has much to do with L2 proficiency. While lower-band students exhibit a heavy reliance on a narrower range of items for strong assertions, higher-band students tend to be more tentative and demonstrate a more native-like use of some Eds. The observed patterns are explained in the light of the inherent properties of English EDs, the imperfect modal instruction and learner factors.

Discourse connectives (DCs) are multi-functional devices used to connect discourse segments and fulfill interpersonal levels of discourse. This study investigates the use of selected 80 DCs within 11 categories in the argumentative essays produced by L1 and L2 university students. The analysis is based on the International Corpus Network of Asian Learners of English (ICNALE) which consists of essays written by native speakers (NS) and non-native speakers (NNS) from 10 countries and regions in Asia. WordSmith Tools were used to generate the quantitative profile of the DCs, while follow-up qualitative analysis in the context of usage provided additional interpretive insights. The total frequency of DCs used by Hong Kong and Singaporean students is significantly less than do L1 writers, mainly because the addictive "and" is by far less frequent in the essays produced by L2 writers. Hong Kong students use much more enumerating, resultive and summative DCs than both L1 writers and L2 writers from Thailand and Singapore. Thai students, on the other hand, employ the causal device "because" much more than both L1 and other L2 writers. Hong Kong and Singaporean students are more formal in tone than L1 and Thai students when using the adversative and resultive DCs. Despite the apparent differences, there are considerable similarities of usage, with "and", "but", "because", "so", "however" and "therefore" occurring among the top 10 most frequently used devices of both L1 and L2 writers, although with strikingly different frequencies. These findings shed light on the pragmatic uses of DCs by L1 and L2 writers as a way to influence the interpretation of the message, and thus succeed in achieving their communicative intentions.

Inflation is often regarded as a dangerous phenomenon which poses a potential threat to economies in the world. It is thus an entity that demands the constant attention of economists, policymakers and the general public. In order to make this abstract entry more concrete and vivid, a number of metaphorical expressions are used to depict inflation. Building on previous studies that relied on researchers' intuition or a small corpus, this paper sets out to investigate the use of inflation metaphor by examining a 450-million-word Corpus of Contemporary American English (COCA). The results show that there exist a considerable number of metaphorical collocates of inflation, which can be grouped into separate yet closely related categories: INFLATION IS FIRE, INFLATION IS DISEASE, INFLATION IS AN ANIMAL, INFLATION IS AN ENEMY, INFLATION IS A RACER, INFLATION IS A MACHINE, and the like. This study shows how these metaphors function in specific contexts, and how they structure and reframe our thinking about inflation and other related economic concepts. These findings have pedagogical implications for both teaching of economics and second language learning of relevant words and phrases.

Outphasing power amplifiers (OPAs) can be used in wireless information and power transfer systems due to their excellent conversion efficiency. With the rapid advancement of technology, there is a strong demand for OPAs to achieve wideband and multi-band operations to enhance frequency coverage. This paper provides a comprehensive review of the research progress on the development of broadband and multi-band board-level OPAs. Firstly, the paper introduces the fundamental components of an OPA. Then, the paper delves into a detailed analysis of the load modulation of OPAs. Subsequently, previous works on the circuit topology and design methods for broadband and multi-band OPAs are discussed and compared. The paper highlights various design strategies and their respective advantages and disadvantages. Finally, the paper explores some potential design methods for broadband and multi-band OPAs, discussing emerging technologies and highlighting potential research directions. [ABSTRACT FROM AUTHOR]

Similar to a Doherty power amplifier (DPA), a sequential power amplifier (SPA) is mainly composed of a main amplifier, an auxiliary amplifier and a combiner. However, SPA breaks the bandwidth limitation of the impedance inverter in the DPA, and also simplifies the design procedure. Since the main amplifier has no load modulation, it is easy for the SPA to realize broadband operation and improve the output back-off (OBO) power range. Therefore, SPA has great advantages and potential in expanding bandwidth, improving drain efficiency and expanding the back-off range of a power amplifier simultaneously. This paper describes the evolution and classification of the SPA. First, the basic theory of the SPA is reviewed. Then, some two-way SPAs using coupler and circulator as a power combiner are discussed. Thirdly, the latest popular sequential load modulated balanced amplifier is overviewed. [ABSTRACT FROM AUTHOR]