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The purpose of this paper is to design a suitable guard trace to reduce the electromagentic interference between two closely spaced high frequency transmission lines. A novel cross-shaped resonator combined via fence is passed down to alleviate far-end and near-end crosstalk (NEXT) in tightly coupled high-speed transmission lines. The distance between the adjacent transmission lines is increased stepwise as a function of trace width.

A rectangular-shaped resonator via fence is connected by a guard trace has been proposed to overcome the coupling between the traces that is separated by 2 W. Similarly, by creating a cross-shaped resonator via fence connected by guard trace that reduces the spacing further by 1.5 W.

A tightly coupled transmission line structure that needs separation by a designed unit cell structure. Further research needs to be conducted to improve the NEXT, far-end crosstalk (FEXT) and spacing between the transmission lines.

This study portrays a novel method that combines the resonators via fence with a minimum spacing between the tightly coupled transmission lines which reduce the NEXT and FEXT; thereby reducing the size of the routing area. The resultant test structures are characterized at high frequencies using time domain and frequency domain analysis. The following scattering parameters such as insertion loss, NEXT and FEXT of the proposed method are measured as 1.504 dB, >30 dB and >20 dB, respectively.

This paper aims to examine empirically whether the system of public expenditure reporting is capable of delivering financial accountability, focusing on the UK government's use of private finance for roads.

Publicly available documents from the public and private sector partners for 11 roads contracts are examined, together with a publicly provided bridge paid for via tolls as a comparator.

Reporting by both public and private sectors is limited and opaque, such that accountability to the public is inadequate. The evidence also shows that the scale of the additional expenditure generated by private finance warrants greater disclosure and scrutiny than is currently the case.

These findings, which occur in the roads sector where projects are large and visible, are likely to be replicated elsewhere in the public sector. Accountability issues may be even more problematic in public bodies where reporting is more diffuse. Furthermore, the proliferation of other forms of private finance increases the problems of reporting clear financial information, the lack of which not only makes informed public debate about public and fiscal policy impossible but also may lead to the wrong policy choice.

There has been little ex post facto examination as to whether extant reporting requirements permit understanding and scrutiny of the cost of private finance. The paper presents a desired list of annual disclosure, highlighting an information gap.

Problem-solving, systems thinking and design thinking are disciplines practiced by all human beings and is also innate in other living objects with limited use of symbolic structures. They are necessary to achieve the goals and survive. Interpretation of problem-solving as a change in equilibrium makes it applicable throughout the inanimate world. The aim is to describe the proposed empirical systems theory that integrates problem-solving and systems thinking through design thinking.

A brief historical background describes why comprehensive empirical systems theory has not been attempted before except as a restricted version in engineering systems. The methodology of the general theory follows that of conventional science, but with systemic content. Interference by required mental or physical product/systems changes states which is subject to discussion, creativity, innovation and inspiration accomplished by iteration as necessary.

A problem-solving structure has been created, which is implemented in a methodical way to aid the innate ability of individuals and organisations, and is open to modifications and the use of quantitative methods. Processed natural language allows for implementation at the operational level.

The proposed systems theory is an empirical theory that uses the structural properties of parts of the world. The integration makes “systems” the driver of change of state and offers fundamental concepts. The implementation shown in Figure 2 is methodical and can be applied by individuals and organisations subject to peer review and development. The method clarifies the roles of product/artifact and systems designers.

This paper aims to design a dual mode X-band substrate integrated waveguide (SIW) bandpass filter in the conventional SIW structure. A pair of back-to-back square and split ring resonator is introduced in the single-layer SIW bandpass filter. The various coupling configurations of SIW bandpass filter using split square ring slot resonator is designed to obtain dual resonant mode in the passband. It is shown that the measured results agree with the simulated results to meet compact size, lower the transmission coefficient, better reflection coefficient, sharp sideband rejection and minimal group delay.

A spurious suppression of wideband response is suppressed using an open stub in the transmission line. The width and length of the stub are tuned to suppress the wideband spurs in the stopband. The measured 3 dB bandwidth is from 8.76 to 14.24 GHz with a fractional bandwidth of 48.04% at a center frequency of 11.63 GHz, 12.59 GHz. The structure is analyzed using the equivalent circuit model, and the simulated analysis is based on an advanced design system software.

This paper discusses the characteristics of resonator below the waveguide cut-off frequency with their working principles and applications. Considering the difficulties in combining the resonators with a metallic waveguide, a new guided wave structure – the SIW is designed, which is synthesized on a planar substrate with linear periodic arrays of metallized via based on the printed circuit board.

This study has investigated the wave propagation problem of the SIW loaded by square ring slot-loaded resonator. The electric dipole nature of the resonator has been used to achieve a forward passband in a waveguide environment. The proposed filters have numerous advantages such as high-quality factor, low insertion loss, easy to integrate with the other planar circuits and, most importantly, compact size.

The purpose of this paper is to do an empirical analysis assessing whether banks highly involved into trading activities show specific business model choices. Key factors in the analysis are a proper measure for trading activities and a consistent classification of banks in terms of business choices.

We investigate three measures for trading activities proposed by regulators in the context of bank structural reform in Europe. Through robust statistics we identify the key trading players and classify banks into a limited number of business model clusters, relying on a set of balance sheet and income statement indicators.

Using a sample of 100 European banks in 2007-2012, results show that the measures identify similar, but not identical, sets of banks highly involved into trading. The measure proposed by the European Commission selects fewer banks and is more consistent over time. The business model analysis identifies six rather stable clusters, from small-medium retail-focused banks to very large investment groups. The measures coherently identify as key trading players the largest investment groups and select very few retailed focused banks. Differences among measures arise for very large retail-diversified and medium/large wholesale banks.

These results could feed the debate on which measures for trading regulators could consider depending on the target of the reform they would implement. For instance we show that the measure proposed by the European Commission selects less well capitalized retail-diversified banks compared to the others.

This paper analyses the factors that make fashion-product crowdfunding campaigns successful. The authors argue that crowdfunding is an innovative and functional way of bringing new fashion items to the market. The purpose of this paper is to answer the question whether product innovation, lifecycle and sustainability have a positive effect on the success of fashion crowdfunding campaigns. The findings highlight that the success of the fashion crowdfunding campaigns depends on creators' adherence to the values of the platform which they use to raise capital.

A total of 300 fashion crowdfunding projects running between the 17th of October and the 15th of December 2017 were collected from Kickstarter – the world's largest crowdfunding platform based on reward-based all-or-nothing model. Two-step binomial logistic regression was used to analyse the data.

The model predicted a significant increase in the odds of success for the fashion items crowdfunded during the first-time production, and innovative and environmentally sustainable products with a higher price range of rewards. In line with previous literature, regression analyses predicted a significant effect of the control variables of goal amount (negative) and the number of rewards (positive). Contrary to previous studies, neither the presence of a video nor the campaign length predicted success.

The novel findings of this study contribute to the literature by providing an analysis of success factors of fashion items on crowdfunding platforms. The results show that innovative, environmentally sustainable and higher-priced products produced by early-stage ventures are better welcomed by the audiences.

The purpose of this paper is to investigate “image management” as an important element within the concept to the Crime prevention through environmental design (CPTED). Globally, guidance tends to focus on promoting surveillance and few studies have explored how vacant poorly maintained housing might affect perceptions of crime and CPTED.

This paper contrasts the perceptions of 168 members of the public and 12 built environment professionals with regards to a detached property in Perth, Western Australia. Using two photographs to elicit responses (one poorly maintained and one well-maintained) respondents were asked about their perceptions of crime, and the extent to which CPTED features were perceived to be present. These results are contrasted with a site audit of the CPTED qualities visible in both images.

The CPTED audit recorded significantly higher scores for the well-maintained property than for the poorly maintained dwelling. Most respondents indicated they felt less safe, perceived more crime and lower levels of CPTED in relation to the poorly maintained house. The findings provide support that there is a link between poorly maintained housing and the perceptions of CPTED, crime and the fear of crime.

This innovative study utilised two photographic images of the same property to probe “image management”, perceptions of crime and CPTED qualities. It highlights the need to consider these issues throughout the different stages of the development process and presents idea of the “cradle to the grave” life-cycle of criminal opportunities.

An automated machining cell installed at Flight Refuelling in the UK was described at the recent FMS‐4 conference in Stockholm

The purpose of this paper is to share information on how the advantages of tourism are both a result and a determinant of the quality of life in rural areas. Consequently, it is one of the main factors for sustainable development in the social context.

Quantitative and qualitative research was undertaken of 36 villages that have been developing rural tourism for at least 20 years in Poland. In-depth interviews were conducted with destination management organizations (DMO) leaders and members of the local communities. Direct observation was used to gain an understanding of the realities in the field. Round table discussions with managers of rural tourism and members of the communities helped to perform the cost-benefit analysis of the development of rural tourism. This study was conducted between the years 2009 and 2014.

This study monitored patterns and changes in residents’ quality of life and measured their perceptions of rural tourism. The findings showed that negligence and errors during the planning stage results in a negative opinion of tourism, leading to unfavorable effects on future development, causing intolerable material, financial and social costs. Three types of factors influencing tourism were identified: social and technical infrastructure, ecology and lifestyle. These findings are important for local policymakers and rural tourism business.

Readers need to remember that only clearly determined population was considered in the research and specific sampling settings; reference to other settings may have produced different results. The extent to which the findings can be generalized certainly requires further investigation.

The development of rural tourism is considered a viable means to attract tourists to a destination and to enhance residents’ overall quality of life. However, the perception of tourism’s influence on the overall quality of life depended on internal marketing and proper communication. This study yielded interesting conclusions that have practical implications for DMO and tourism leaders who continually evaluate rural tourism initiatives.

The experience of 20 years in the Polish modern agrotourism industry represent a set of observations concerning both the improvement within the quality of life of rural residents, as well as the danger of social conflict, depending on the management tools and practices applied at rural tourist destinations. Negligence and errors during the planning stage may result in a negative opinion of tourism, leading to unfavorable effects on future development of tourism and causing intolerable material, financial and social costs.

Although this study referred to communities living in Polish villages, the findings show that detailed planning and the DMO’s communication efforts resulted in positive opinions from local residents with regard to tourism, and helped to avoid high material, financial and social costs. The case studies from Poland offer a universal benchmark in managing rural tourism destinations and show the challenges that needed to be addressed for the development of sustainable rural tourist destinations.

This paper aims to present the design development and measurement of two aerodynamic slotted X-bands back-to-back planer substrate-integrated rectangular waveguide (SIRWG/SIW) to Microstrip (MS) line transition for satellite and RADAR applications. It facilitates the realization of nonplanar (waveguide-based) circuits into planar form for easy integration with other planar (microstrip) devices, circuits and systems. This paper describes the design of a SIW to microstrip transition. The transition is broadband covering the frequency range of 8–12 GHz. The design and interconnection of microwave components like filters, power dividers, resonators, satellite dishes, sensors, transmitters and transponders are further aided by these transitions. A common planar interconnect is designed with better reflection coefficient/return loss (RL) (S₁₁/S₂₂ ≤ 10 dB), transmission coefficient/insertion loss (IL) (S₁₂/S₂₁: 0–3.0 dB) and ultra-wideband bandwidth on low profile FR-4 substrate for X-band and Ku-band functioning to interconnect modern era MIC/MMIC circuits, components and devices.

Two series of metal via (6 via/row) have been used so that all surface current and electric field vectors are confined within the metallic via-wall in SIW length. Introduced aerodynamic slots in tapered portions achieve excellent impedance matching and tapered junctions with SIW are mitered for fine tuning to achieve minimum reflections and improved transmissions at X-band center frequency.

Using this method, the measured IL and RLs are found in concord with simulated results in full X-band (8.22–12.4 GHz). RLC T-equivalent and p-equivalent electrical circuits of the proposed design are presented at the end.

The measurement of the prototype has been carried out by an available low-cost X-band microwave bench and with a Keysight E4416A power meter in the microwave laboratory.

The transition is fabricated on FR-4 substrate with compact size 14 mm × 21.35 mm × 1.6 mm and hence economical with IL lie within limits 0.6–1 dB and RL is lower than −10 dB in bandwidth 7.05–17.10 GHz. Because of such outstanding fractional bandwidth (FBW: 100.5%), the transition could also be useful for Ku-band with IL close to 1.6 dB.