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Describes research into methods for treating solid state gas sensors to create a multisensor system with both multi‐gas analysis and self‐diagnostic capabilities. Outlines the three main categories of solid state gas sensors and then discusses the need for a systematic approach to semiconductor sensor design and the phenomenology of new sensor materials. Concludes that theoretically a self‐diagnostic sensor array device can be conceived for utilisation in gas sensing.

This paper aims to estimate the relationship between defect structure with gas concentration for use as a gas sensor. The change in defect concentration caused a shift in the Fermi level, which in turn changed the surface potential, which is manifested as the potentiometric response of the sensing element.

A new theoretical concept based on defect chemistry and band structure was used to explain the experimental gas response of a sensor. The theoretically simulated response was compared with experimental results.

Understanding the origin of potentiometric response, through the generation of defects and a corresponding shift in Fermi level of sensing surface, by the adsorption of gas. Through this understanding, the design of a sensor with improved selectivity and stability to a gas can be achieved by the study of defect structure and subsequent band analysis.

This paper provides information about various types of surface defects and numerical simulation of material with defect structure. The Fermi energy of the simulated value is correlated with the potentiometric sensor response.

Gas sensors are an integral part of vehicular and industrial pollution control. The theory developed shows the origin of response which can help in identifying the best sensing material and its optimum temperature of operation.

Low-cost, reliable and highly sensitive gas sensors are highly demanded which is fulfilled by potentiometric sensors.

The operating principle of potentiometric sensors is analyzed through electron band structure analysis. With the change in measured gas concentration, the oxygen partial pressure changes. This results in a change in defect concentration in the sensing surface. Band structure analysis shows that change in defect concentration is associated with a shift in Fermi level. This is the origin of the potentiometric response.

Summarizes some of the most commonly used gas sensors and describes how each one works. Covers solid state gas sensors; aqueous electrochemical gas sensors; paramagnetic gas sensors, photometric gas sensors; thermal conductivity gas sensors and fibre‐optic gas sensors.

The purpose of this paper is to investigate the moderating role of organizational culture in affective commitment and job satisfaction relationship.

Responses were collected from 712 employees working in nine different Indian central public sector enterprises /state-owned enterprises (SOEs) by using a questionnaire-based survey. Theoretical analysis is based on social exchange theory and managerial grid theory. Data were analyzed by using partial least squares structural equation modeling.

The establishment of organizational culture as a moderator in Indian organizations is unique. This study has utilized data from employees working in different departments of organizations to provide unbiased responses. The results demonstrate that impact of affective commitment on employees’ job satisfaction is moderated by supportive and innovative cultures. Additionally, this research also proves that bureaucratic culture does not play a crucial role in moderating the relationship between organizational commitment and employees’ job satisfaction.

Results are relevant to top-level and middle-level management in which people are involved in the governance of the organization, both directly and indirectly. There should be fixed working hours and optimum time management. Due to growing pressure, few employees who have personal obligations toward their families, such as nursing mothers and stressed individuals, should be provided with flexible working hours. In this way, culture can become supportive to cater to different needs of employees.

Till date, organizational culture as moderator has received very less attention in India. The establishment of organizational culture as a moderator in Indian SOEs is unique. The results add to the growing literature of commitment from non-western context as this study is based on Indian samples. This study has utilized data from employees working in different departments of organizations to provide unbiased responses.

This paper aims to introduce constructed CeO2/TiO2 core/shell nanoparticle as sensitive substance organic compounds.

The CeO₂ nanoparticles were synthesized by hydrothermal treatment. Then CeO₂/TiO₂ core/shell was fabricated by sol–gel method preparation of TiO₂ in the presence of ceria nanoparticles and applied as the sensitive material to make a sensor.

Formation of the nanoparticles was confirmed by X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), field emission scanning electron microscopy (FESEM) and high resolution transmission electron microscopy (HRTEM). The synthesized sensor exhibited not only good sensitivity to volatile organic compounds at room temperature but also logarithm of sensitivity versus concentrations was linear.

The sensor shows acceptable sensitivity to volatile organic compound at room temperature.

Experimental data revealed satisfactory reproducibility and short response and recovery times.

A radical mechanism for gas sensor reaction in two pathways was considered and activation energies were calculated by density functional theory (DFT) method to describe different sensitivities of tested volatile gases. The experimental results were consistent with the calculations.

The case will test two hypotheses regarding three variables influencing the level of employee satisfaction and organizational citizenship at GAMMA, a manufacturer of plastics. Two hypotheses were developed from a review of the literature and initial results from exploratory research ( H1: low employee satisfaction at GAMMA is a direct result of an autocratic leadership style, low trust environment and weak corporate culture; H2: low employee citizenship is a direct result of low employee satisfaction). Results suggest that although the perception was that employee satisfaction and organizational citizenship were low (from the exploratory research); both quantitative and descriptive data indicated these were not. Moreover, the hypotheses were not conclusively supported quantitatively. High trust was not obtained. Also a specific high leadership style and a specific culture resulting in high employee satisfaction were also questionable. Moreover, it was not observed that a strong correlation existed statistically. H1 is therefore not conclusive quantitatively. H2 does not demonstrate a high level of employee citizenship and employee satisfaction correlation. Despite these results, it is recommended management employ the following action plan: do not change current leadership style; develop an action plan to increase trust starting with increasing accessibility of management to employees; develop an action plan to move from current culture to preferred expressed culture starting by rewarding team activity rather than individual activities; improve employee satisfaction even if the observed level is medium to high.

The University of Southampton has been active in the area of thick‐film sensors since their initial conception through to the present. Recent research at the university has concerned the use of thick‐film sensor arrays for the discrimination of chemical species in both gaseous and dissolved form. In addition, the detection of many physical parameters is now being addressed through the use of arrays of sensing elements with a view to improving on factors such as noise immunity, environmental cross‐sensitivity and long‐term accuracy. In the area of chemical sensing, extensive use has been made of thick‐film technology to allow low‐cost arrays of chemical sensors to be fabricated. The lack of specificity exhibited by the individual sensing elements has been demonstrably overcome through the use of signal processing techniques applied to the outputs of the array of sensors. Thick‐film chemical sensor research currently under way at Southampton includes a UK DTI/SERC funded LINK project concerning dissolved species monitoring for water quality assessment. Additionally, gas sensor arrays for the detection of toxic and flammable gases are being explored as part of a well established ongoing research programme. The use of thick‐film technology for the fabrication of physical sensors has been extensively documented. Current research at the University of Southampton includes an industrially sponsored project involving the use of thick‐film strain sensing resistors in the design of an accelerometer. The use of Z‐axis piezoresistivity and an array approach to solving noise and drift problems is seen as a significant novelty in this work.

Outlines the characteristics and applications of the stannic oxide sensor. Describes the manufacturing process and properties of stannic oxide and concludes that with modern development in tin dioxide‐based sensors their application is set to expand from their present role in domestic, commercial and industrial alarms to monitoring instruments as well.

The welcomed introduction of Fred Moseley to a 27-page excerpt from Marx's Economic Manuscript of 1867–1868 draws attention to the influence of turnover times on the formation of prices of production. This chapter discusses the profit-adjustment decomposition outlined by Marx in these pages where he tries to distinguish the influences of turnover time and capital composition on the formation of the prices of production. It provides an alternative decomposition based on Marx's analysis in the second volume of Capital and argues that these pages do not support Moseley's claim that prices of production are intended only to describe a long-run equilibrium condition. It therefore suggests considering the profit adjustment in relation to the dynamic formation of the general rate of profit throughout the equalization process.

This paper aims to focus on research work related to metamaterial-based sensors for material characterization that have been developed for past ten years. A decade of research on metamaterial for sensing application has led to the advancement of compact and improved sensors.

In this study, relevant research papers on metamaterial sensors for material characterization published in reputed journals during the period 2007-2018 were reviewed, particularly focusing on shape, size and nature of materials characterized. Each sensor with its design and performance parameters have been summarized and discussed here.

As metamaterial structures are excited by electromagnetic wave interaction, sensing application throughout electromagnetic spectrum is possible. Recent advancement in fabrication techniques and improvement in metamaterial structures have led to the development of compact, label free and reversible sensors with high sensitivity.

The paper provides useful information on the development of metamaterial sensors for material characterization.