bluuebunny/crossref_metadata_2025_split huggingface dataset:
Performance evaluation of a zoom iris recognition system using Q-type aspherical design
Authors: Wei Guimei , Zhang Kai , Xia Xiongping 
Published: December 2023

Based on a Q-type aspheric surface, a wide working distance zoom iris recognition lens is designed. The lens has an aperture of 2.0 and a working distance of 200–1200 mm. The design results show that the modulation transfer function values of each field at the cutoff frequency are greater than 0.3 and the optical distortion is less than 1.1%. With the same structure and parameters, the performance of two optical systems using Q-type aspherical and even power series aspherical are analyzed. The Q-type non-spherical aberration correction is better.
Photonic generation and transmission for an X-band dual-chirp waveform with frequency multiplication and power-fading compensation
Authors: Gao Yiran , Huang Chaoqun , He Hongxia , Yang Shuna , Yang Bo , Chi Hao 
Published: December 2023

The generation of an X-band dual-chirp waveform, which is capable of pulse compression, plays an important role in radar, electric warfare, and satellite communication systems. With the development of applications such as multi-static radar, transmission over long distances has attracted considerable attention. In this paper, a photonic system for X-band dual-chirp waveform generation and transmission based on frequency multiplication and power-fading compensation is put forward and experimentally carried out. Based on a compact dual-parallel Mach–Zehnder modulator (DPMZM), the dual-chirp waveforms of 8.6–9.6 GHz and 9.6–10.6 GHz are generated by an RF carrier of 4.8 GHz and transmitted through a 40 km single-mode fiber (SMF) spool. The dispersion-induced power fading of the chirp waveform is compensated for by about 13 dB. The full width at half maximum (FWHM) and the peak-to-sidelobe ratio (PSR) of the compressed pulses are 1 ns and 11.5 dB, respectively. Moreover, the compensation of power fading in the entire X-band is verified to demonstrate the applicability of our system. By flexibly adjusting the bias voltage of the built-in phase shifter, the system can be applied in more scenarios.
The implementation, use and impact of patient reported outcome measures in value-based healthcare programmes: A scoping review
Authors: Silveira Bianchim Mayara , Crane Ellie , Jones Anwen , Neukirchinger Barbara , Roberts Gareth , Mclaughlin Leah , Noyes Jane 
Published: December 2023

Background
Value-Based Healthcare (VBHC) focuses on the value of patient outcomes and is achieved by ensuring resources already available are managed to realise the best possible individual and population health outcomes. Patient reported outcome measures (PROMs) measure the impact of illnesses from the patient perspective. We conducted a scoping review to understand how PROMs were implemented and used, and their impact in the context of VBHC.

Methods
Arksey and O’Malley’s overarching framework supplemented by principles from mixed-methods Framework Synthesis were used. CINAHL, Cochrane Library, EMBASE, MEDLINE, PsycINFO, Web of Science, Google Scholar and reference lists were searched. An a priori data extraction framework was created using the review question and objectives as key domains against which to extract data. Mixed-methods data were organised, integrated and preserved in original format and reported for each domain.

Results
Forty-three studies were included with 60,200 participants. Few studies reported a well-developed programme theory and we found little robust evidence of effect. PROMs were universally considered to have the potential to increase patient satisfaction with treatment and services, enhance patient awareness of symptoms and self-management, and improve health outcomes such as quality of life and global health status. Evidence is currently limited on how PROMs work and how best to optimally implement PROMs to achieve the target outcome. Implementation challenges commonly prevented the realisation of optimal outcomes and patients generally needed better and clearer communication about why PROMs were being given and how they could optimally be used to support their own self-management.

Conclusion
PROMSs have yet to demonstrate their full potential in a VBHC context. Optimal PROMs implementation is poorly understood by clinicians and patients. Future studies should explore different models of PROM implementation and use within VBHC programmes to understand what works best and why for each specific context, condition, and population.
Association between smartphone usage and health outcomes of adolescents: A propensity analysis using the Korea youth risk behavior survey
Authors: Cha Jong Ho , Choi Young-Jin , Ryu Soorack , Moon Jin-Hwa 
Published: December 2023

Objectives
We aimed to investigate the association between smartphone use and adverse behavioral health outcomes using nationwide Korea Youth Risk Behavior Web-based Survey data for 2017 and 2020.

Methods
The 2020 data (N = 54,809) were used to analyze the relationships between daily smartphone usage time (non-user, 0–2 h [hour], 2–4 h, 4–6 h, 6–8 h, and > 8 h), and adverse health outcomes (stress, sleep, depression, suicide, substance use, and smartphone overdependence). A 1:1 propensity score matching (PSM) was used to control for confounding variables.

Results
A total of 40,998 adolescents with < 4 h/day and > 4 h/day of usage were included. Adolescents’ mean smartphone usage time in 2020 increased compared to that in 2017 (weighted % of > 2 h/day; 64.3% vs. 85.7%). The curvilinear relationships between smartphone usage time and adverse health outcomes were prominent after > 4 h/day. Adolescents using smartphones 2–4 h/day showed no increased adverse health outcomes compared to non-users, except for smartphone overdependence. Using a smartphone > 4 h/day was significantly associated with stress perception (1.16; 1.11–1.22), suicidal ideation (1.22; 1.13–1.31), and substance use (alcohol, 1.66; 1.57–1.75) after PSM.

Conclusions
Our study demonstrated the curvilinear relationship between smartphone usage time and adverse health outcomes in adolescents. Our findings can help establish smartphone usage guidelines for adolescents.
Accelerometer-measured physical activity and sedentary behavior in nonagenarians: Associations with self-reported physical activity, anthropometric, sociodemographic, health and cognitive characteristics
Authors: Aaltonen Sari , Urjansson Mia , Varjonen Anni , Vähä-Ypyä Henri , Iso-Markku Paula , Kaartinen Sara , Vasankari Tommi , Kujala Urho M. , Silventoinen Karri , Kaprio Jaakko , Vuoksimaa Eero 
Published: December 2023

Background
Research on device-based physical activity in the oldest-old adults is scarce. We examined accelerometer-measured physical activity and sedentary behavior in nonagenarians. We also investigated how the accelerometer characteristics associate with nonagenarians’ self-reported physical activity, anthropometric, sociodemographic, health and cognitive characteristics.

Methods
Nonagenarians from a population-based cohort study (N = 38, mean age 91.2) used accelerometers during the waking hours for seven days. They also participated in a health survey and cognitive telephone interview. The Wald test and Pearson and polyserial correlations were used to analyze the data.

Results
The participants’ average day consisted of 2931 steps, 11 minutes of moderate-to-vigorous physical activity and 13.6 hours of sedentary time. Physical activity bouts less than 3 minutes per day and sedentary time bouts of 20–60 minutes per day were the most common. No sex differences were found. Many accelerometer-measured and self-reported physical activity characteristics correlated positively (correlations ≥0.34, p-values <0.05). The low levels of many accelerometer-measured physical activity characteristics associated with low education (correlations ≥0.25, p-values <0.05), dizziness (correlations ≤-0.42, p-values <0.01) and fear of falling (correlations ≤-0.45, p-values <0.01). Fear of falling was also associated with accelerometer-measured sedentary behavior characteristics (correlations -0.42 or ≥0.43).

Conclusions
Nonagenarians were mostly sedentary and low in physical activity, but individual variability existed. Accelerometer-measured and self-reported physical activity had a good consistency. Education, dizziness and fear of falling were consistently related to accelerometer-measured characteristics in nonagenarians.
Women Veterans’ perspectives, experiences, and preferences for firearm lethal means counseling discussions
Authors: Polzer Evan R. , Holliday Ryan , Rohs Carly M. , Thomas Suzanne M. , Miller Christin N. , Simonetti Joseph A. , Brenner Lisa A. , Monteith Lindsey L. 
Published: December 2023

Aims
Firearms have become an increasingly common method of suicide among women Veterans, yet this population has rarely been a focus in firearm suicide prevention research. Limited knowledge is available regarding the preferences, experiences, or needs of women Veterans with respect to firearm lethal means counseling (LMC), an evidence-based suicide prevention strategy. Understanding is necessary to optimize delivery for this population.

Method
Our sample included forty women Veterans with lifetime suicidal ideation or suicide attempt(s) and firearm access following military separation, all enrolled in the Veterans Health Administration. Participants were interviewed regarding their perspectives, experiences, and preferences for firearm LMC. Data were analyzed using a mixed inductive-deductive thematic analysis.

Results
Women Veterans’ firearm and firearm LMC perspectives were shaped by their military service histories and identity, military sexual trauma, spouses/partners, children, rurality, and experiences with suicidal ideation and attempts. Half reported they had not engaged in firearm LMC previously. For those who had, positive aspects included a trusting, caring relationship, direct communication of rationale for questions, and discussion of exceptions to confidentiality. Negative aspects included conversations that felt impersonal, not sufficiently comprehensive, and Veterans’ fears regarding implications of disclosure, which impeded conversations. Women Veterans’ preferences for future firearm LMC encompassed providers communicating why such conversations are important, how they should be framed (e.g., around safety and genuine concern), what they should entail (e.g., discussing concerns regarding disclosure), whom should initiate (e.g., trusted caring provider) and where they should occur (e.g., safe spaces, women-specific groups comprised of peers).

Discussion
This study is the first to examine women Veterans’ experiences with, and preferences for, firearm LMC. Detailed inquiry of the nuances of how, where, why, and by whom firearms are stored and used may help to facilitate firearm LMC with women Veterans.
Colonial and Postcolonial Cyprus: Transportal Literatures of Empire, Nationalism, and Sectarianism, Daniele Nunziata (2020)
Authors: Pourgouris Marinos 
Published: December 2023

Review of: Colonial and Postcolonial Cyprus: Transportal Literatures of Empire, Nationalism, and Sectarianism, Daniele Nunziata (2020)
Oxford: Palgrave Macmillan, 297 pp.,
ISBN 978-3-03058-235-7, h/bk, € 106.99
ISBN 978-3-03058-238-8, p/bk, € 74.89
ISBN 978-3-03058-236-4, e-book, € 58.84
QUALITATIVE EVALUATION OF PROTECTIVE FABRICS
Authors: Cybulska Maria , Snycerski Marek , Ornat Marian 
Published: December 2023

Abstract
Protective garments are designed to meet the dual needs of product/process protection and workers’ safety and comfort. In this paper, a qualitative evaluation of woven protective fabrics has been presented. The fabric parameters which are most important from the point of view of the user’s needs have been selected and analysed. Basic mechanical parameters such as breaking load, elongation at break and tear resistance were determined in certain example fabrics before and after the washing and sterilisation processes. The worker comfort was analysed by determining air and water vapour permeability and surface resistance. The barrier properties of fabrics were analysed by determining the efficiency of filtration and fabric porosity. The durability of fabrics was evaluated in respect of their ability to stand up to the washing and sterilisation processes, and of the analysis of fabric structure deformation under external loading.
POLYMERIC OPTICAL FIBRES AND FUTURE PROSPECTS IN TEXTILE INTEGRATION
Authors: Harlin Ali , Myllymäki Hanna , Grahn Kirsi 
Published: December 2023

Abstract
In the era of wearable computing, intelligent systems are breaking the bounds of traditional textiles and their design. The integration of the technologies with clothing, accessories, upholstery, or industrial technical textiles provides higher user-comfort and enables their seamless use in everyday activities. Polymer optical fibre (POF) materials are suitable for short-distance data transfer and can be combined with textile structures. The manufacture of the fibre is low cost, and the products are more durable than glass optic fibres. Applications for POF today are known in the automotive industry, consumer electronics, cabling, and measuring as optodes. Polymeric optical fibre (POF) made of polymethyl methacrylate PMMA has been on the market for the past 25 years, used for simple light guide and data transmission application. Perfluor (PF) polymers offer great new opportunities in the field of data communication because of low absorption losses. Optical polycarbonate (PC), and polystyrene (PS) are used for special applications. The POF materials are introduced, and their opportunities in textile integration are discussed.
NUMERICAL INVESTIGATIONS FOR CUTTING OF WIRES AND THREADS
Authors: Ulbricht V. , Franeck J. , Schirmacher F. , Offermann P. 
Published: December 2023

Abstract
Strengthening threads or strings are incorporated in technical textiles for example to protect against vandalism. Among other things, the resistance to mechanical destruction (e.g. cut) depends on the material, the cross-section of the strengthening threads and the support points in the base fabric. An essential criterion for durability is the maximum size of the cutting force, which increases with the decrease in the span. In preceding investigations with spring steel wire, it was shown that an optimum apparently exists for this span. The purpose of the investigations was the development of methods for ascertaining the maximum cutter strengths on the basis of standardised experiments (tensile test) and the proof of the existence of a span optimum. The investigations will be focused on monofilament wire.
MODELLING AND SIMULATION OF THE MECHANICAL BEHAVIOUR OF WEFT-KNITTED FABRICS FOR TECHNICAL APPLICATIONS
Authors: Araújo M. de , Fangueiro R. , Hong H. 
Published: December 2023

Abstract
This paper is in four parts. The first is related to general considerations and experimental analyses, and each of the successive papers is related to different approaches to theoretical analyses of the mechanical behaviour of weft-knitted fabrics and weft-knitted reinforced composites made of glass fibre. The objective is to find ways of improving the mechanical properties and simulating the mechanical behaviour of knitted fabrics and knitted reinforced composites, so that the engineering design of such materials and structures may be improved. In Part I, general considerations, experimental analyses and ways of improving the mechanical properties of weft-knitted fabrics and knitted reinforced composites are discussed. In Part II the first model is presented, a 3D model based on the classic elastica theory, and it is used to calculate the load-extension curves of a plain weft-knitted fabric in coursewise and walewise directions. Good agreement is obtained between theoretical and experimental results. In Part III the second model is presented, a 2D model based on FEA (finite element analyses). A plain weft knitted fabric, based on the simple loop structure, is simplified and represented by a 2D hexagonal structure constructed by non-linear truss elements. The characteristics of the truss elements for FEA simulation are obtained from experimental results through an analytical method when a loop is converted to a FEA model. The elongation deformation is simulated in one, two and many directions. The model can also be used to calculate a planar knitted fabric to be deformed to fit a 3D spherical mould. In Part IV the technologies for the development of weft-knitted 3D complex shape preforms] are surveyed and a third model is presented, a 3D model based on FEA (finite element analyses). A solid representation of a 2D yarn is built up, and a MES (mechanical event simulation) is applied to obtain a 3D shaped loop. The final knitted fabric geometry is obtained by interacting this loop with the adjacent loops, according to the dimensional properties of the knitted fabrics and by using a MES. Finally, the geometry of the reinforcement inside the composite is built up, and the composite material is divided into small tetrahedric elements to obtain a mesh of finite tetrahedric elements (FEA). The average values of the mechanical properties are obtained with FEA and compared with the experimental ones.
EXAMINATION OF THE AGEING OF SELECTED SYNTHETIC FIBRES UNDER THE INFLUENCE OF UV RADIATION
Authors: Lipp-Symonowicz Barbara , Sztajnowski Sławomir , Kardas Iwona 
Published: December 2023

Abstract
An attempt has been undertaken to assess the effect of UV radiation on the molecular and supermolecular structure of polyamide and polypropylene fibres that are characterised by various macroscopic features, colours and additives. Based on the measurements performed, the general conclusion can be drawn that UV radiation under the exposure conditions used in our experiments causes changes in both the molecular and supermolecular structures of the investigated fibres. The extent of these changes is clearly dependent on the initial fibre structure, the modifiers added and the macroscopic features.
NEW TECHNIQUE FOR OPTIMISING YARN-END PREPARATION ON SPLICER, AND A METHOD FOR RATING THE QUALITY OF YARNEND
Authors: Issa Khaled , Grütz Rudi 
Published: December 2023

Abstract
This paper presents a method for improving the yarn-end preparation on a splicer by forming a loop outside the opening tube which assures gentle delivery of the yarn to the opening tube, as well as control of the yarn-end length which will be prepared. Twelve groups of yarns were selected and tested using the new technique and a standard splicer. The new technique for yarn-end preparation showed better results in comparison to the standard splicer, especially for high twisted and plied yarn.
DEVELOPING FIBROUS MULTIFUNCTIONAL STRUCTURES FOR TECHNICAL APPLICATIONS
Authors: Araujo Mario de , Fangueiro Raul , José Geraldes Maria 
Published: December 2023

Abstract
This paper describes a quick prototyping unit for fibrous multifunctional structures which has been set-up at the University of Minho. This unit provides for fast development of technical samples for a variety of special applications, mainly in the areas of health and well-being, sports goods, personnel protection, techno-fashion, the civil construction and building industries, composite materials, and so on. The unit works systematically through the areas of conceptualisation, design and simulation, development, manufacturing and testing of technical and intelligent textile materials and structures, providing solutions for technical problems. New structures are developed for specific applications where special requirements are needed. It provides the best solution in terms of materials, structures, technologies and cost. The technologies involved include advanced CAD systems, FEA (finite element analyses), testing of mechanical properties, permeability, conductivity, microscopy, as well as smallscale- computer controlled manufacturing of yarns, nonwovens, wovens, warp & weft knits, braids and hybrid structures. Special finishings and surface treatments, coating and lamination are also possible. The unit is used for research, education and to provide services for companies in emerging markets for advanced textile materials. Examples of the novel products developed are provided.
March 2005, Autex Research Journal Vol. 5, No. 1, p. 67-70
Authors: Musioł M. 
Published: December 2023

Abstract
The paper presents a model of transverse deformation in a textile product consisting of two external layers combined with deformed elements in the middle layer. Transverse deformability of textiles is particularly significant for several-layer products, and is decisive for the utility properties of such products.
NOVEL APPROACH TO STUDY COMPRESSION PROPERTIES IN TEXTILES
Authors: Murthyguru  
Published: December 2023

Abstract
Data analysis of a fabric.s compression properties can only be done when the limits of compression are known. The best formula is van Wyk.s, although the meaning of the physical parameter is still not clear. On the basis of van Wyk.s equation, a study of the compressibility of woven fabrics can be initiated in partnership with Pierce, Kemp and Hamilton.s approach for circular yarns and the flattened yarns of a fabric under pressure. Neural network models promise to solve the drawbacks of de.Jong.s and other models. The fit of the pressure-thickness relationship may be improved by using exponential function and the Iterative method, such as Marquardt.s algorithm for evaluating compression properties. Back-propagation promises to give better results, since the KESFB3 compression measuring instrument works by minimising error levels. The optimisation of low-stress mechanical properties is possible by using trained networks, and this venture forms an absolute method for comparing the functional properties of fabrics.
FRICTORQ, ACCESSING FABRIC FRICTION WITH A NOVEL FABRIC SURFACE TESTER
Authors: Lima Mário , Hes Lubos , Vasconcelos Rosa , Martins Jorge 
Published: December 2023

Abstract
A new method to characterise the coefficient of friction of textile fabrics is proposed. The principle is based on the dry clutch, where an annular shaped flat upper body that is kept still, rubs against a lower flat surface, which rotates around a vertical axis at a constant angular velocity. Friction coefficient between the two contacting surfaces is then proportional to the level of the dragging torque between them, measured by means of a precision reaction torque sensor. Contact pressure is constant, given by the own weight of the upper body. The signal from the torque sensor is digitalised through an electronic interface and fed into a PC where friction coefficient is worked out. Finally, experimental work is reported.
BRAIDED ANGLE MEASUREMENT TECHNIQUE FOR THREE-DIMENSIONAL BRAIDED COMPOSITE MATERIAL PREFORM USING MATHEMATICAL MORPHOLOGY AND IMAGE TEXTURE
Authors: Zhenkai Wan , Jialu Li 
Published: December 2023

Abstract
This paper describes a new measuring algorithm for estimating the exterior average braided angle of a three-dimensional (3-D) braided composite material preform] based on image texture. In this project, an advanced filtered algorithm for an image of a 3-D braided composite material preform is developed on the basis of mathematical morphology. Median filter algorithms for mathematical morphology are applied in the system. The polar spectrum and main properties are investigated in the paper. Theory shows that a rotated texture’s polar spectrum is an approximate translation of the unrotated texture’s polar spectrum, and that the degree of each translation approximates to the corresponding rotation of the surface. The system was tested on both carbon and glass fibre preforms. We have obtained very encouraging experimental results, which show that the proposed method is feasible. So far, the research is a new development for measuring 3-D braided composite material preforms. The work will lay the foundation for establishing a test standard for 3-D braided composite material in China.