bluuebunny/crossref_metadata_2025_split huggingface dataset:
E‐band SIW H‐plane horn antenna development
Authors: Yang Dong‐Hua , Liu Tsung‐Han , Ke Po‐Yu , Lin Wen‐Piao , Chiu Hsien‐Chin 
Published: March 2013

PurposeThe purpose of this paper is to design and measure an H‐plane substrate integrated waveguide (SIW) 72 GHz backfired horn antenna chip. The SIW horn was fabricated on a standard 0.5‐μm GaAs process with substrate thickness of 100 μm.Design/methodology/approachPlanar SIW horn design method with standard GaAs circuit design rule was adopted. The input reflection coefficient and output antenna gain was simulated at the FEM‐based 3D full‐wave EM solver, Ansoft HFSS and measured at the Agilent E8361C Network Analyzer and Cascade 110 GHz probe station.FindingsThe measured input −6 dB bandwidth is about 0.9 GHz at a center frequency of 72.39 GHz. The maximum antenna power gain extracted from the path loss at 72.39 GHz is about −3.64 dBi.Research limitations/implicationsThin substrate exhibits larger capacitance and energy stores rather than radiates. Flat cutting restricts the arc lens design and results in the radiation plane mismatches to the air. Simple taper transition design makes the input bandwidth much narrower. The problems can be further improved by selecting thicker substrate and the multi‐section input CPW GSG pads to microstrip transition.Practical implicationsUnlike the traditional anechoic chamber, the antenna measurement station is exposed to the open space and chip antenna was supported by the FR4 substrate and the metal probing station plate. A fully characterization of the antenna open space environment before the measurement is needed.Originality/valueAn H‐plane SIW 72 GHz horn antenna was designed and studied. The antenna was using the GaAs 0.5‐μm MMICs process design rule includes the SIW designed cylindrical metal bars all being restricted in standard rectangular shape. Compare to traditional bulky waveguide horn antenna, the antenna chip size is only 1.8×1.7 mm2. The on‐wafer measurement is conducted to measure the input return loss and the maximum antenna power gain of the on‐chip antenna. The designed on‐chip SIW horn antenna is useful for the integrated design of the E band GaAs MMICs single‐chip RF transceiver.
Design and application of sink node for wireless sensor network
Authors: Tian Yu , Lv Yang , Tong Ling 
Published: March 2013

PurposeThe purpose of this paper is to present one type of the architecture for wireless sensor network and to discuss in detail the hardware design of the sink node which can be responsible for transmission data or instructions between sensor nodes and data. Finally, an experiment based on wireless sensor network has proved that the design of sink node is applicable and reliable in monitoring environmental elements such as temperature, humidity, etc.Design/methodology/approachA design for the sink node is presented which constants three parts: the power module, the storage/display module and the communication module. Zigbee, GPRS and Ethernet techniques are used on ARM7 microcontroller. The sink node is capable of bridging the user's terminal with sensor nodes for information transmission.FindingsIn this paper, a new method of the power management based on wireless sensor network is proposed to conserve energy. The antenna height is proven to be an important factor to the communicating among nodes. Finally, the paper proposes regular patterns of the deployment for sensor nodes based on the communication range and the sampling range.Originality/valueThe experiment for providing real‐time data on environment monitoring parameters indicates that the system is efficient. The authors believe that the idea and the design presented in the paper may help the research and application of wireless sensor network.
Intelligent spam filtering for massive short message stream
Authors: Xia Hu , Fu Yan , Zhou Junlin , Xia Qi 
Published: March 2013

PurposeThe purpose of this paper is to provide an intelligent spam filtering method to meet the real‐time processing requirement of the massive short message stream and reduce manual operation of the system.Design/methodology/approachAn integrated framework based on a series of algorithms is proposed. The framework consists of message filtering module, log analysis module and rules handling module, and dynamically filters the short message spam, while generating the filtering rules. Experiments using Java are used to execute the proposed work.FindingsThe experiments are carried out both on the simulation model (off‐line) and on the actual plant (on‐line). All experiment data are considered in both normal and spam real short messages. The results show that use of the integrated framework leads to a comparable accuracy and meet the real‐time filtration requirement.Originality/valueThe approach in the design of the filtering system is novel. In addition, implementation of the proposed integrated framework allows the method not only to reduce the computational cost which leads to a high processing speed but also to filter spam messages with a high accuracy.
Improved SOFI algorithm for blind extraction of smooth signals
Authors: Gao Jianbin , Xia Qi , Li Jianping , Ye Mao 
Published: March 2013

PurposeThe purpose of this paper is to present a symmetrical method to extract smooth signal from linear mixtures in the frequency domain; with experimentations, the method is thereafter evaluated.Design/methodology/approachThe Second‐order Frequency Identification (SOFI) algorithm has been presented to retrieve baseband signals which have inactive bands and different bandwidths in the frequency domain. However, the SOFI method will bring about accumulative error, therefore an improved method is proposed in this paper by using symmetric extraction mode. In contrast to the SOFI algorithm, the ISOFI method can extract simultaneously the signal with the highest degree of smoothness and the signal with the lowest degree of smoothness. This means that the signals are not extracted one by one; instead, they are extracted in parallel. Experimental results in both noise‐free and noisy scenarios verified that the proposed method has a significant improvement compared with the SOFI algorithm.FindingsAn improved SOFI (ISOFI) method is proposed to reduce the accumulated error encountered in the SOFI algorithm. In the proposed method, the symmetric mode is utilized to extract in parallel the signals with different smooth degrees. Experimental results demonstrated that the ISOFI has a higher accuracy and lower accumulated error compared to the original algorithm.Originality/valueThe paper demonstrates use of the symmetric extraction mode to overcome the disadvantage of accumulated errors existing in the SOFI algorithm.
Proactive P2P worm containment via automatic authentication
Authors: Zhang Xiao‐song , Chen Ting , Xu Chun‐xiang , Pan Xiao‐hui , Wu Xue‐yang 
Published: March 2013

PurposeNowadays, proactive P2P worm (PRWORM) poses a latent threat to internet infrastructure and common users for the fatal vulnerabilities in homogeneous P2P software. It is more difficult to contain PRWORM because of its fast spread speed. Current techniques are not adequate to quarantine PRWORM, mainly because of their inaccuracy and slow response to attacks. The purpose of this paper is to propose an accurate and real‐time approach for PRWORM containment.Design/methodology/approachFirst, the authors present a new methodology to contain PRWORM via proper authentication of initiators of P2P communications. Second, three simple network protocols are proposed to fulfill automatic authentication.FindingsBoth simulations and strictly mathematical proof by Strand Space Model represent that the authors' work is able to accurately quarantine PRWORM in real time. Furthermore, proof shows the three network protocols are resistant to popular attacks such as man‐in‐the‐middle attack and replay attack.Originality/valueFirst, the authors propose an authentication based method to contain proactive P2P worm and second, use strand space model to proof the effectiveness and security of the method.
Anti‐interference improvement of reconfigurable zero‐IF RF receiver based on tunable filter array computation
Authors: Jiang You Chang , Wei Zhu Xiao , Hai Shao Zhen 
Published: March 2013

PurposeThe purpose of this paper is to propose an improved reconfigurable zero‐IF RF receiver with anti‐interference improvement used in dynamic spectrum resource sharing system at UHF band based on tunable filter array computation. Measured results show that the anti‐interference competence of improved zero‐IF RF receiver is enhanced greatly by employing two tunable filter arrays.Design/methodology/approachThe anti‐interference reconfigurable zero‐IF RF receiver is based on fully differential I/Q demodulation structure and employs two same tunable filter arrays to meet the requirement on adjacent channel suppression imposed by systems coexisting. The performance requirement of each filter in tunable filter arrays is computed and derived according to the needs of anti‐interference.FindingsThe anti‐interference competence of zero‐IF RF receiver could be enhanced greatly by employing two tunable filter arrays.Originality/valueThe paper provides a method to design zero‐IF RF receivers with anti‐interference competence used in dynamic spectrum resource sharing systems.
Online shoppers’ perceptions of e‐retailers’ ethics, cultural orientation, and loyalty
Authors: Lu Long‐Chuan , Chang Hsiu‐Hua , Yu Shih‐Ting 
Published: March 2013

PurposeThis study aims to examine the impact of cultural orientation on consumer perceptions regarding the ethics of online retailers (CPEOR), and to understand the influence of CPEOR on e‐loyalty intention.Design/methodology/approachThe paper operationalizes Román's CPEOR scale and Triandis’ individuality and collectivism typology. A valid sample of 949 respondents is collected via an online survey.FindingsConsumers with horizontal individualism, and with horizontal and vertical collectivism tend to hold higher perceptions of e‐retailers’ ethics. The higher consumers perceive positive CPEOR, the more they tend to purchase from the same online sellers.Practical implicationsMultinational enterprises must understand the possible effects of cultural context on consumer attitudes of e‐retailers’ ethics before they can create successful marketing strategies. Additionally, if e‐retailers maintain shopping situations where transactions are secure, private, and certain, e‐shoppers are more likely to be inspired to repurchase from the same vendors.Originality/valueThe CPEOR scale, which includes security, privacy, non‐deception and fulfillment dimension, is greater completeness to evaluate consumer perceptions of e‐retailers’ ethics than scales using a unidimensional approach. This study further examines both individualism and collectivism at the individual level, which is rare in the existing literature.
Members' sensemaking in a multi‐professional team
Authors: Rovio‐Johansson Airi , Liff Roy 
Published: March 2013

PurposeThe aim of this study is to investigate sensemaking as interaction among team members in a multi‐professional team setting in a new public management context at a Swedish Child and Youth Psychiatric Unit.Design/methodology/approachA discursive pragmatic approach grounded in ethonomethodology is taken in the analysis of a treatment conference (TC). In order to interpret and understand the multi‐voiced complexity of discourse and of talk‐in‐interaction, the authors use dialogism in the analysis of the members' sensemaking processes. The analysis is based on the theoretical assumption that language and texts are the primary tools actors use to comprehend the social reality and to make sense of their multi‐professional discussions. Health care managers are offered insights, derived from theory and empirical evidence, into how professionals' communications influence multi‐professional cooperation. The team leader and members are interviewed before and after the observed TC.FindingsTeam members create their identities and positions in the group by interpreting and “misinterpreting” talk‐in‐interaction. The analyses reveal the ways the team members relate to their treatment methods in the discussion of a patient; advocating a treatment method means that the team member and the method are intertwined.Practical implicationsThe findings may be valuable to health care professionals and managers working in teams by showing them how to achieve greater cooperation through the use of verbal abilities.Originality/valueThe findings and methods contribute to the international research on cooperation problems in multi‐professional teams and to the empirical research on institutional discourse through text and talk.
Clinical managers in the primary care sector: do the benefits stack up?
Authors: O'Riordan Chris , McDermott Aoife 
Published: March 2013

PurposeThe purpose of this paper is to explore the nature and value of the clinical management role undertaken by primary care doctors in Ireland. To date, a majority of research has focused on clinical management roles in the acute sector.Design/methodology/approachThe paper presents a sub‐set of data from a mixed methods study. In total, 14 semi‐structured interviews are drawn upon to identify the nature and value of the clinical management role in primary care.FindingsComparison with acute sector research identifies considerable differences in the nature of the clinical management role across sectors – and in the associated value proposition. Structural and role‐related contingencies affecting the potential value of clinical management roles in Irish primary care are discussed. Structural influences include the private ownership structure, low complexity and limited requirement for cross‐professional coordination. Role‐related influences include the primacy of the clinical identity, time constraints and lack of managerial training.Research limitations/implicationsThe findings provide a limited basis for generalisation, premised on 14 interviews in one national context. However, given the international shift towards the provision of health services in primary care, they provide a research agenda for an important healthcare context.Practical implicationsThe findings draw attention to the need for policy consideration of the value of the clinical manager role in primary care; how policy can support effective primary care management; and the need for specialised management training, which takes account of the small‐firm context.Originality/valueThe paper identifies that primary‐care clinical‐management roles focus on operational management and oversight and discusses the structural and role‐related factors which affect their efficacy.
Using evaluation theory in priority setting and resource allocation
Authors: Smith Neale , Mitton Craig , Cornelissen Evelyn , Gibson Jennifer , Peacock Stuart 
Published: March 2013

PurposePublic sector interest in methods for priority setting and program or policy evaluation has grown considerably over the last several decades, given increased expectations for accountable and efficient use of resources and emphasis on evidence‐based decision making as a component of good management practice. While there has been some occasional effort to conduct evaluation of priority setting projects, the literatures around priority setting and evaluation have largely evolved separately. In this paper, the aim is to bring them together.Design/methodology/approachThe contention is that evaluation theory is a means by which evaluators reflect upon what it is they are doing when they do evaluation work. Theories help to organize thinking, sort out relevant from irrelevant information, provide transparent grounds for particular implementation choices, and can help resolve problematic issues which may arise in the conduct of an evaluation project.FindingsA detailed review of three major branches of evaluation theory – methods, utilization, and valuing – identifies how such theories can guide the development of efforts to evaluate priority setting and resource allocation initiatives. Evaluation theories differ in terms of their guiding question, anticipated setting or context, evaluation foci, perspective from which benefits are calculated, and typical methods endorsed.Originality/valueChoosing a particular theoretical approach will structure the way in which any priority setting process is evaluated. The paper suggests that explicitly considering evaluation theory makes key aspects of the evaluation process more visible to all stakeholders, and can assist in the design of effective evaluation of priority setting processes; this should iteratively serve to improve the understanding of priority setting practices themselves.
Whose kettle?
Authors: Sullivan Helen , Williams Paul 
Published: March 2013

PurposeThis article aims to explore how objects function in integration efforts in health and social care contexts.Design/methodology/approachThe article draws on boundary object theory and empirical data collected from a range of health and social care integration initiatives in Wales to illustrate the value of the focus on objects and to identify the potential implications of this approach for studies in other national contexts.FindingsAttention to objects can shed light on the dynamics of integration, its potential and limits, offering insights that conventional analysis might otherwise miss.Research limitations/implicationsThe data drawn on in this paper are illustrative. Exploring the role of objects in integration requires more focused studies.Practical implicationsThe results suggest that integration designers and managers need to pay closer attention to the attachments that practitioners develop to objects.Originality/valueThis is a highly original paper in view of its innovative use of boundary object theory in the context of integration, and its contribution to theory, research and practice.
Shared mental models of integrated care: aligning multiple stakeholder perspectives
Authors: Evans Jenna M. , Ross Baker G. 
Published: March 2013

PurposeHealth service organizations and professionals are under increasing pressure to work together to deliver integrated patient care. A common understanding of integration strategies may facilitate the delivery of integrated care across inter‐organizational and inter‐professional boundaries. This paper aims to build a framework for exploring and potentially aligning multiple stakeholder perspectives of systems integration.Design/methodology/approachThe authors draw from the literature on shared mental models, strategic management and change, framing, stakeholder management, and systems theory to develop a new construct, Mental Models of Integrated Care (MMIC), which consists of three types of mental models, i.e. integration‐task, system‐role, and integration‐belief.FindingsThe MMIC construct encompasses many of the known barriers and enablers to integrating care while also providing a comprehensive, theory‐based framework of psychological factors that may influence inter‐organizational and inter‐professional relations. While the existing literature on integration focuses on optimizing structures and processes, the MMIC construct emphasizes the convergence and divergence of stakeholders' knowledge and beliefs, and how these underlying cognitions influence interactions (or lack thereof) across the continuum of care.Practical implicationsMMIC may help to: explain what differentiates effective from ineffective integration initiatives; determine system readiness to integrate; diagnose integration problems; and develop interventions for enhancing integrative processes and ultimately the delivery of integrated care.Originality/valueGlobal interest and ongoing challenges in integrating care underline the need for research on the mental models that characterize the behaviors of actors within health systems; the proposed framework offers a starting point for applying a cognitive perspective to health systems integration.
Role of innovative institutional structures in integrated governance
Authors: Kalita Anuska , Mondal Shinjini 
Published: March 2013

PurposeThe aim of this paper is to highlight the significance of integrated governance in bringing about community participation, improved service delivery, accountability of public systems and human resource rationalisation. It discusses the strategies of innovative institutional structures in translating such integration in the areas of public health and nutrition for poor communities.Design/methodology/approachThe paper draws on experience of initiating integrated governance through innovations in health and nutrition programming in the resource‐poor state of Chhattisgarh, India, at different levels of governance structures – hamlets, villages, clusters, blocks, districts and at the state. The study uses mixed methods – i.e. document analysis, interviews, discussions and quantitative data from facilities surveys – to present a case study analyzing the process and outcome of integration.FindingsThe data indicate that integrated governance initiatives improved convergence between health and nutrition departments of the state at all levels. Also, innovative structures are important to implement the idea of integration, especially in contexts that do not have historical experience of such partnerships. Integration also contributed towards improved participation of communities in self‐governance, community monitoring of government programs, and therefore, better services.Practical implicationsAs governments across the world, especially in developing countries, struggle towards achieving better governance, integration can serve as a desirable process to address this. Integration can affect the decentralisation of power, inclusion, efficiency, accountability and improved service quality in government programs. The institutional structures detailed in this paper can provide models for replication in other similar contexts for translating and sustaining the idea of integrated governance.Originality/valueThis paper is one of the few to investigate innovative public institutions of a particularly vulnerable and poor region in India, and is unique in that it uses the lenses of governance and community mobilisation to explore this important, and under‐researched, topic.