| 1. |
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| 2. |
- Engleryd, Anna, et al.
(författare)
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Air pollution and Climate Change
- 2029
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- In order to evaluate the role of air pollution and air pollution control for climate policies, SwedishEnvironmental Protection Agency invited leading experts and scientists, senior administrators andnegotiators, international organisations and industry to an international workshop in Gothenburg, Sweden,19-21 October 2009.
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| 3. |
- Glatz, Terese, 1983-, et al.
(författare)
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A Systematic Review of Parental Self-efficacy Among Parents of School-Age Children and Adolescents
- 2029
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Ingår i: Adolescent Research Review. - : Springer. - 2363-8346 .- 2363-8354. ; 9:1, s. 75-91
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Forskningsöversikt (refereegranskat)abstract
- What function does parental self-efficacy have for parenting behaviors and children's adjustment, and what explains individual variations in parents' self-efficacy? Parental self-efficacy involves parents' beliefs about their influence on their children and this systematic review presents results from 35 empirical studies published between 2003 and 2022 among parents of school-aged children and adolescents. First, the studies in this review show a bi-directional association between parental self-efficacy and positive parenting, and some empirical evidence that parental self-efficacy influences children indirectly, via parenting. The few longitudinal studies examining associations between parental self-efficacy and child behaviors suggest that self-efficacy might emerge as a reaction to children's behaviors. Second, many child, parent, and sociocultural factors were shown to predict parental self-efficacy (e.g., child gender and age, parents' psychological well-being, and socio-economic status), and results suggest that these associations are similar across multiple countries and age groups. Finally, studies reporting on parental self-efficacy at different time points or a correlation between self-efficacy and the child's age suggested that parental self-efficacy decreases over the school-age and adolescent period. This review shows the complex role of parental self-efficacy in associations with parent and child factors, and it also highlight questions to address for future research.
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| 4. |
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| 5. |
- Abdi, Somayeh, et al.
(författare)
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Deadline-constrained security-aware workflow scheduling in hybrid cloud architecture
- 2025
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Ingår i: Future Generation Computer Systems. - : Elsevier B.V.. - 0167-739X .- 1872-7115. ; 162
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Tidskriftsartikel (refereegranskat)abstract
- A hybrid cloud is an efficient solution to deal with the problem of insufficient resources of a private cloud when computing demands increase beyond its resource capacities. Cost-efficient workflow scheduling, considering security requirements and data dependency among tasks, is a prominent issue in the hybrid cloud. To address this problem, we propose a mathematical model that minimizes the monetary cost of executing a workflow and satisfies the security requirements of tasks under a deadline. The proposed model fulfills data dependency among tasks, and data transmission time is formulated with exact mathematical expressions. The derived model is a Mixed-integer linear programming problem. We evaluate the proposed model with real-world workflows over changes in the input variables of the model, such as the deadline and security requirements. This paper also presents a post-optimality analysis that investigates the stability of the assignment problem. The experimental results show that the proposed model minimizes the cost by decreasing inter-cloud communications for dependent tasks. However, the optimal solutions are affected by the limitations that are imposed by the problem constraints.
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| 6. |
- Achieng, Pauline, et al.
(författare)
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Reconstructing of the radiation condition and solution for a variable coefficient Helmholtz equation in a semi-infinite strip from Cauchy data on an interior segment
- 2025
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Ingår i: Journal of Mathematical Analysis and Applications. - : ACADEMIC PRESS INC ELSEVIER SCIENCE. - 0022-247X .- 1096-0813. ; 541:1
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Tidskriftsartikel (refereegranskat)abstract
- We consider the Helmholtz equation with a variable coefficient in a semi-infinite strip. Homogeneous Neumann conditions are prescribed on a part of the boundary of the strip. Our aim is to find the unknown function in the Dirichlet boundary condition on the remaining part of the boundary from measurements taken on a segment inside the semi-infinite strip. We assume that the radiation condition at infinity is unknown and must be found also. The main difficulty here is the variable coefficient in the Helmholtz equation which does not allow to apply the method of separation of variable as was done in [2]. Such problems appear in acoustics to determine acoustical sources and surface vibrations from acoustic field measurements in non-uniform mediums. We split the problem in two parts. One consists of finding the radiation condition and this problem is well-posed. We derive the equation for finding the parameter of the radiation condition, that holds at infinity. The second one is to find the Dirichlet data and this problem is ill-posed. We present an operator equation with compact operator for finding the Dirichlet data. (c) 2024 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/).
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| 7. |
- Adami, Rebecca, 1982-
(författare)
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Childism, intersectionality and the rights of the child the myth of a happy childhood
- 2025
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Bok (refereegranskat)abstract
- This book is the first to comprehensively develop the concept of childism to understand, study and analyse age-based discrimination against children.It presents a critical theory to help comprehend intersecting prejudice against children and to examine the weak implementation of the UN Convention on the Rights of the Child (CRC), and in what ways violations against children can be analysed through the intersections of racist, sexist and ableist discrimination. The book further offers scholars a new perspective when studying structural forms of discrimination and oppression against children and provides professionals with a new vocabulary on prejudice targeting children when assessing theory, policy and praxis on ‘child-friendly’ and ‘child-centred’ initiatives that overlook the need to protect children against discrimination.This book will be of key interest to scholars, students and practitioners of human rights, child and youth studies, education, prejudice studies, the United Nations and child law, and more broadly to sociology, social policy, psychology, and social work.
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| 8. |
- Adami, Rebecca, 1982-
(författare)
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Revisiting the past : Human rights education and epistemic injustice
- 2025
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Ingår i: Nordic Perspectives on Human Rights Education. - : Routledge. - 9781032375366 - 9781003340676
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Bokkapitel (refereegranskat)abstract
- Epistemic injustice in human rights education can be found in a colonial historical trajectory of human rights that rests on accounts of western agency only. Such narratives overshadow the legacy of Indian and Pakistani freedom fighters and Latin American feminists who negotiated human rights against colonial, patriarchal and racist discourses after the Second World War. Without their contribution a United Nations rights concept risked being limited to a western trajectory of the ‘Rights of Man’ that represents a monistic universalism. This chapter revisits the history of the United Nations, unearthing historical counternarratives of what a pluralistic universalism of human rights means by adding knowledge about postcolonial feminist subjects who spoke of a positive conception that could reduce injustice.
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| 9. |
- Ait El Manssour, Rida, et al.
(författare)
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D-algebraic functions
- 2025
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Ingår i: Journal of symbolic computation. - : Academic Press. - 0747-7171 .- 1095-855X. ; 128
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Tidskriftsartikel (refereegranskat)abstract
- Differentially-algebraic (D-algebraic) functions are solutions of polynomial equations in the function, its derivatives, and the independent variables. We revisit closure properties of these functions by providing constructive proofs. We present algorithms to compute algebraic differential equations for compositions and arithmetic manipulations of univariate D-algebraic functions and derive bounds for the order of the resulting differential equations. We apply our methods to examples in the sciences.
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| 10. |
- Alfes, Claudia, et al.
(författare)
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A classification of polyharmonic Maaß forms via quiver representations
- 2025
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Ingår i: Journal of Algebra. - 0021-8693 .- 1090-266X. ; 661, s. 713-756
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Tidskriftsartikel (refereegranskat)abstract
- We give a classification of the Harish-Chandra modules generated by the pullback to SL2(R) of polyharmonic Maaß forms for congruence subgroups of SL2(Z) with exponential growth allowed at the cusps. This extends results of Bringmann–Kudla in the harmonic case. While in the harmonic setting there are nine cases, our classification comprises ten; A new case arises in weights k>1. To obtain the classification we introduce quiver representations into the topic and show that those associated with polyharmonic Maaß forms are cyclic, indecomposable representations of the two-cyclic or the Gelfand quiver. A classification of these transfers to a classification of polyharmonic weak Maaß forms. To realize all possible cases of Harish-Chandra modules we develop a theory of weight shifts for Taylor coefficients of vector-valued spectral families. We provide a comprehensive computer implementation of this theory, which allows us to provide explicit examples.
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| 11. |
- Almkvist, Gustaf, 1985-
(författare)
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Corporate Criminal Liability : Two Nordic Solutions
- 2025
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Ingår i: Corporate Criminal Liability and Sanctions. - Abingdon : Routledge. - 9781032349961 ; , s. 51-61
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Bokkapitel (refereegranskat)abstract
- In this chapter, the systems of Corporate Criminal Liability in four Nordic jurisdictions are examined, as interesting examples of the challenges - and possibilities - of Corporate Criminal Liability. It is argued that a credible model of attributing action to the company must be established, if a criminal sanction against a company is to be understood as a punishment in the sense that it attributes blame. In that regard, attribution can be based either on identification or on a concept of corporate negligence. Identification, where the actions of a representative of a company are attributed directly to the company, does not offer any considerable normative challenges. When corporate negligence is considered, however, the Nordic countries differ in an interesting way. Denmark and Norway share a system of primary corporate criminal liability, where the actions of several individuals can be cumulated and attributed to the company in a way where the company appears to be a genuine actor. Once cumulated, there is very limited room for the company to argue that it has not acted negligently. Sweden and Finland, on the other hand, in principle understand Corporate Criminal Liability as accessory to the crimes of individuals. In order to attribute such crimes, a test of corporate negligence is then employed, where it is determined whether the company has negligently failed to prevent the crimes of the individuals. While the accessory solution in Sweden and Finland appears to be an unnecessary limitation, the negligence test employed in those jurisdictions appears as an interesting model for understanding what it might mean to attribute blame to a company in the Criminal Law, and, in a deeper sense, for a concept of corporate guilt.
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| 12. |
- Alqudhaibi, Adel, et al.
(författare)
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Securing Industry 4.0: Assessing Cybersecurity Challenges and Proposing Strategies for Manufacturing Management
- 2025
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Ingår i: Cyber Security and Applications. - 2772-9184. ; 3
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Tidskriftsartikel (refereegranskat)abstract
- Industry 4.0 represents the foundation of the fourth industrial revolution, characterised by the integration of innovative technology into the manufacturing process. This integration enhances automation, diagnostics, data analysis, and autonomous decision-making through the networking of equipment and machinery. However, the increased reliance on technology raises concerns about the implementation and maintenance of cybersecurity. This paper aims to address cybersecurity challenges in the manufacturing industry and suggest strategies to reduce risks. In particular, it examines the level of awareness and understanding of cybersecurity issues among manufacturing employees, establishes accountability for cyberattacks, and evaluates the effectiveness of existing industry practices. The current cybersecurity landscape in the manufacturing industry was thoroughly analysed. Data were gathered through surveys, interviews, and case studies to measure awareness, identify knowledge gaps, and assess existing practices. The research findings indicate a significant knowledge gap regarding cybersecurity among manufacturing employees. This vulnerability can be attributed to the lack of funding and training, especially compared to the resources provided to information technology departments and corporate employees. The study emphasises the importance of redirecting cybersecurity resources and protocols towards the manufacturing industry. This paper puts forward a series of recommendations to mitigate risks and safeguard the manufacturing industry.
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| 13. |
- Artero-Real, A., et al.
(författare)
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Evaluating edge joint preparation impact on penetration depth in laser-arc hybrid welding
- 2025
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Ingår i: Optics and Laser Technology. - : Elsevier Ltd. - 0030-3992 .- 1879-2545. ; 181:part A
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Tidskriftsartikel (refereegranskat)abstract
- Nowadays, conventional welding technologies such as submerged arc welding (SAW) are still used in most heavy-steel industries. This type of traditional technology means that welding takes up a large part of the productive time. As a solution to this problem, there are welding methods, such as Laser-Arc Hybrid Welding (LAHW), that have the potential to reduce the cost of manufacturing large steel structures. This is possible due to the reduced number of weld passes required to join thicker steel sections, as large thicknesses can be welded in one or a few passes.A problem with LAHW is achieving satisfactory quality. For this reason, it is essential to study the starting conditions, e.g. edge joint preparation. The target of this research work is to find out the relationship between the penetration value of the weld bead obtained and the edge joint preparation. The evolution of the molten pool and the behavior of the molten material in the joint is discussed for the different edge joint preparation configurations. The effect of the roughness is that it affects the wetting of the molten material in the joint, which would affect the penetration result, together with the gap and air volume gap used in the joint. Cut-wire is also used in the research, in samples that presented a larger air volume gap. The behavior of the molten metal inside the joint in this case is also discussed. In addition, the quality of the weld beads has also been determined by making macrographs, microstructural analysis, X-ray, microhardness profiles, tensile test and Charpy test. Some pores and cracks have been found, although destructive tests show adequate behavior of the weld bead. It is possible to elucidate from the findings that as the roughness, gap and/or air volume gap of the edge joint increases, the penetration value obtained increases. Cut-wire samples obtained full penetration.
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| 14. |
- Aryapoor, Masood, et al.
(författare)
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Flipped non-associative polynomial rings and the Cayley-Dickson construction
- 2025
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Ingår i: Journal of Algebra. - 0021-8693 .- 1090-266X. ; 662, s. 482-501
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Tidskriftsartikel (refereegranskat)abstract
- We introduce and study flipped non-associative polynomial rings. In particular, we show that all Cayley–Dickson algebras naturally appear as quotients of a certain type of such rings; this extends the classical construction of the complex numbers (and quaternions) as a quotient of a (skew) polynomial ring to the octonions, and beyond. We also extend some classical results on algebraic properties of Cayley–Dickson algebras by McCrimmon to a class of flipped non-associative polynomial rings.
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| 15. |
- Baha, Ehsan, et al.
(författare)
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Book Review: A Dialogue for Design and Democracy: Activist Thoughts and Practical Examples for Sociopolitical Empowerment
- 2025
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Ingår i: Design Issues. - 1531-4790 .- 0747-9360.
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Tidskriftsartikel (refereegranskat)abstract
- The book Design and Democracy: Activist Thoughts and Practical Examples for Sociopolitical Empowerment, edited by Michael Erlhoff and Maziar Rezai, was released in April 2021 and features a compilation of 12 thought-provoking chapters contributed by various authors. These chapters delve into the intricate relationships and dynamic interplay between design and democracy. While previous reviews in journals such as The Design Journal, Design and Culture, and Design Studies have offered insights into this notable publication, this review addresses crucial aspects that remain unexplored. It underscores the book's unique perspectives, which are paramount for shaping the trajectory of future research and practice within the realm of design and democracy. Specifically, this review highlights the potential and limitations of design in serving democracy, as well as explores democracy's diverse, agnostic, and norm-breaking nature—considered through both theoretical and practical perspectives.
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| 16. |
- Battestini-Vives, Mariona, et al.
(författare)
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Response surface methodology to optimize membrane cleaning in nanofiltration of kraft black liquor
- 2025
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Ingår i: Separation and Purification Technology. - 1383-5866. ; 354
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Tidskriftsartikel (refereegranskat)abstract
- Better understanding of membrane fouling and cleaning can help implementation of membrane filtration processes in the pulp and paper industry. The aim of this study was to optimize membrane cleaning in the nanofiltration of kraft black liquor ultrafiltered permeate for the recovery of lignin. This work wants to assess whether the cleaning process removes the main foulants; as well as the economic viability of the optimized cleaning compared to a standard cleaning in a nanofiltration membrane plant on industrial scale. The optimization of membrane cleaning was investigated using the response surface methodology. The factors studied were time, temperature, and cleaning agent (Ultrasil 110) concentration, and flux recovery was used to evaluate the success of cleaning. Experiments were performed on laboratory scale where flat-sheet polymeric membranes were fouled with kraft black liquor ultrafiltered permeate and cleaned using various combinations of the three factors. The model developed predicted a flux recovery of 88 % when cleaning was performed for 60 min with a solution of 0.8 wt% Ultrasil 110 at 40 °C. The flux recovery measured experimentally with these cleaning parameters was 80 %. Scanning electron microscopy combined with energy-dispersive X-ray spectroscopy analysis confirmed that the optimized cleaning removed the main foulants from the membrane surface. Moreover, increasing the cleaning agent concentration or the cleaning temperature did not always lead to a higher flux recovery. The techno-economic evaluation revealed that 16 % of the cleaning costs could be saved by optimizing the cleaning process.
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| 17. |
- Boström, Magnus, 1981-
(författare)
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The Multifaceted Seafarer: An Explorative Discourse Analysis of Seafarers’ Portrayals in Swedish Maritime Magazines
- 2025
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Ingår i: Ocean and Society. - : Cogitatio Press. ; 2
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Tidskriftsartikel (refereegranskat)abstract
- Seafaring is a highly male‐dominated occupation. Within the industry, there is an ambition to increase the proportion of women working in maritime professions. In this endeavor, it is relevant to examine how seafarers are portrayed in various contexts. This study aimed to explore the image of seafarers as presented in Swedish maritime magazines: How are seafarers described, and can these descriptions be seen as performative in shaping a professional identity? To meet this aim, a discourse analysis was performed, based on 20 texts from two maritime magazines, representing both rating and officer seafarers. Overall, six subject positions inhabited by seafarers were identified, with several overlapping characteristics. For example, traits of the traditional seafarer were also found in the masculine seafarer and the flexible seafarer. Furthermore, it is argued that several of the subject positions are difficult to combine with what is referred to as the gender‐equal seafarer, mainly due to challenges in balancing family life with extended periods at sea. The study shows that today’s seafarers, according to how they are depicted in Swedish maritime magazines, have considerable agency in shaping their own professional identity without being forced to conform to a hegemonic masculinity. Finally, it is suggested that the term “seafarer” be used instead of “seaman” in both print and everyday conversations, for increased inclusiveness and representation.
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| 18. |
- Brijs, Jeroen, et al.
(författare)
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Effects of electrical and percussive stunning on neural, ventilatory and cardiac responses of rainbow trout
- 2025
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Ingår i: AQUACULTURE. - 0044-8486 .- 1873-5622. ; 594
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Tidskriftsartikel (refereegranskat)abstract
- From an ethical standpoint, it is imperative that rainbow trout (Oncorhynchus mykiss) are humanely slaughtered, which entails that they are rendered unconscious immediately by a stunning method and remain so until death. The efficacy of electrical stunning following dewatering (i.e., in-air electrical stunning at intensities of 50 to 920 mA and durations of 5 to 30 s) and percussive stunning, both advocated as humane stunning and/or killing methods, are evaluated here for this species via the presence or absence of visually evoked responses (VERs). In addition, ventilatory and cardiac responses were evaluated to elucidate the physiological basis for the lethality of both methods. While the present study was unable to determine the capability of in-air electrical stunning to induce immediate unconsciousness, our findings revealed that irreversible stuns were induced by both in-air electrical stunning (i.e., similar to 25 to 70% of individuals did not recover VERs across the various combinations of stunning intensities and/or durations) and percussive stunning (i.e., similar to 100% of individuals did not recover VERs). The efficacy of in-air electrical stunning for permanently abolishing VERs was marginally, but significantly, impacted by stun intensity (i.e., explained 8% of the variation). Furthermore, due to substantial inter-specific variability and a limited sample size, significant impacts of stun intensity and/or duration on the recovery of VERs in reversibly stunned individuals were not detected in the present study (i.e., VERs recovered between <0.5 to 28.8 min). Further investigation is therefore necessary before in-air electrical stunning can be endorsed as a standalone humane slaughter method for rainbow trout. This includes determining its capacity to induce immediate unconsciousness, as well as to identify additional factors that could be modified or enhanced to improve its efficacy. Furthermore, since death following in-air electrical stunning likely entails a prolonged process involving ventilatory failure, hypoxemia, and subsequent vital organ malfunction, rather than immediate cardiac arrest or central nervous system failure, the sequential use of methods such as percussive stunning is recommended to safeguard the welfare of rainbow trout during slaughter.
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| 19. |
- Brion, Thomas, et al.
(författare)
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Algebraic K-Space Identification 2D technique for the automatic extraction of complex k-space of 2D structures in presence of uncertainty
- 2025
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Ingår i: Mechanical systems and signal processing. - : Academic Press. - 0888-3270 .- 1096-1216. ; 223
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Tidskriftsartikel (refereegranskat)abstract
- A robust inverse method for the complex wavenumber space (complex k-space) extraction is essential for structural vibration and damping analysis of two-dimensional structures. Most existing methods suffer from extracting the reliable complex k-space of plates in the presence of realistic uncertainties, especially for plates with low damping properties. To this end, this paper presents a new method for extracting the dispersion and damping characteristics of two-dimensional periodic structures using only the full-field displacement fields as input. The proposed method, the Algebraic K-Space Identification 2D technique (AKSI 2D), is an extension of the Algebraic Wavenumber Identification technique to solve two-dimensional problems. The optimised formulas are developed within the algebraic identification framework, which allows the extraction of all the properties of the complex k-space in a comprehensive way. The proposed method is validated numerically and experimentally, and its performances are compared with other popular k-space identification methods under different uncertainty conditions. The test cases cover analytically solved isotropic fields to numerically solve orthotropic fields and finally experimental measurements. The different cases show promising results and demonstrate that the proposed method is a robust tool to characterise the wave propagation of two-dimensional structures under stochastic structural and constitution conditions.
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| 20. |
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| 21. |
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| 22. |
- Charras, Kevin, et al.
(författare)
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Creating Empowering Environments for People with Dementia : Addressing Inclusive Design from Homes to Cities
- 2025
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Bok (refereegranskat)abstract
- This edited volume addresses the environments that exacerbate, exclude, and stigmatise those living with dementia to explore designs and processes that can optimise well-being and independence.Featuring the voices and opinions of people with dementia, the chapters showcase individual homes, special dementia facilities, different forms of care homes, and public spaces, from landscape to urbanism, as examples of how to meet the needs and preferences for those living with dementia now. As a response to a recent Cochrane meta-analysis (2022) which highlighted the problems associated with using traditional, medically orientated evaluative methods for environmental design, this book demonstrates a range of research methods that can be used to inform and investigate good co-design of dementia-enabling environments. Furthermore, the book addresses cultural differences in people’s needs and illustrates past, ongoing, and novel initiatives worldwide.Ultimately, this timely volume focuses on person-centred design that enables empowerment, quality of life, health, and citizenship in people living with dementia. It will be of value to researchers, scholars, and postgraduate students studying gerontology, dementia specifically, and those involved with architecture and the built environment for societal benefit more broadly.
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| 23. |
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| 24. |
- Che, Jing, et al.
(författare)
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Unravelling the dominant role of phosphorylation degree in governing the functionality of reassembled casein micelles: Implications for future dairy production through precision fermentation
- 2025
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Ingår i: Food Hydrocolloids. - 0268-005X. ; 159
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Tidskriftsartikel (refereegranskat)abstract
- This study investigated the effect of bovine casein (CN) phosphorylation degree on micelle reassembly, stability, calcium-binding, and acid-induced gelation or precipitation, with the aim of assessing the feasibility of utilising microbial CNs in future dairy production. The four CNs (αS1-, αS2-, β-, and κ-CN) were purified from bovine milk and subjected to enzymatic dephosphorylation, resulting in three pools – fully and partially phosphorylated and fully dephosphorylated. Nine reassembled CN micelle solutions (RCMS) were investigated, consisting of three systems (two of four-CN, and one of β/κ-CN) and three phosphorylation degrees of the corresponding CNs. The distribution of different components (protein, calcium, and phosphorus) into micellar, serum, and insoluble fractions after two centrifugation steps was studied. The pH stability relative to acid-gelation or precipitation of the formed RCMS was further investigated. Results showed that the micelle reassembly ability of RCMS containing all four CNs was proportional to the phosphorylation degree; CNs with higher phosphorylation degrees contained a higher proportion of micelles and exhibited greater calcium-binding ability, whereas fully dephosphorylated CNs hardly formed CN micelle structures. The gelation pH of RCMS increased with decreasing phosphorylation degree, whereas the fully dephosphorylated CNs completely failed in gelation but precipitated when reaching their isoelectric point at pH 5.5. Moreover, RCMS containing only β/κ-CN at their native full phosphorylation were unstable at the salt concentrations applied, with more than half of the CNs self-associating to flocculate. Our study confirms the essential role of phosphorylation degree in micelle reassembly and stability, providing important information for potential future applications of microbial CNs that are expected to exhibit non-native phosphorylation levels.
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| 25. |
- Cheng, Yaopeng, et al.
(författare)
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Differential laser-induced thermoelastic spectroscopy for dual-gas CO2/CH4 detection
- 2025
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Ingår i: Measurement. - : Elsevier BV. - 0263-2241 .- 1873-412X. ; 240
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Tidskriftsartikel (refereegranskat)abstract
- A novel differential laser-induced thermoelastic spectroscopy (D-LITES) was demonstrated. In D-LITES, one probe and one control laser beam with different modulation phases were combined to generate two quartz tuning fork (QTF) mechanical oscillations, which are pi out of phase. The powers of the two lasers were adjusted to balance out the background noise. The differential signal was acquired by demodulating the QTF piezoelectric signal. The D-LITES sensor had a compact and cost-effective one-path configuration and was able to realize dualgas detection. Carbon dioxide (CO2) and methane (CH4) were chosen as target gases to verify the D-LITES sensor performance. With the D-LITES technique, the background noise was greatly suppressed. The minimum detection limit (MDL) was improved by 9 times from 260 ppm to 29 ppm and 7.13 times from 0.385 ppm to 0.054 ppm for CO2 and CH4 detection, respectively.
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