K.M.B. Jansen
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View article: Structural Design and Optimization of Knitted Heaters for Optimized Heat Distribution
Structural Design and Optimization of Knitted Heaters for Optimized Heat Distribution Open
Knitted heaters have attracted significant interest due to their flexibility and ease of integration into smart textile applications. However, uneven heat distribution remains a major challenge, leading to comfort issues and inefficient en…
View article: Aortic strain, flow pattern and wall shear stress in a patient-specific compliant aorta replica using Shake-the-Box
Aortic strain, flow pattern and wall shear stress in a patient-specific compliant aorta replica using Shake-the-Box Open
High-fidelity in vitro flow simulator in combination with high-dimensional flow visualization techniques can offer precise and comprehensive evaluation of aortic hemodynamics. However, it is particularly challenging to create a fully trans…
View article: Closed-Form Solutions for Current Distribution in Ladder-Type Textile Heaters
Closed-Form Solutions for Current Distribution in Ladder-Type Textile Heaters Open
Textile heaters are made from knitted conductive yarns integrated into their fabric, making them stretchable, washable, breathable and suitable for close-to-skin wear. However, the non-zero resistance in the lead wires causes non-uniform p…
View article: A novel rigidizable inflatable lunar habitation system: design concept and material characterization
A novel rigidizable inflatable lunar habitation system: design concept and material characterization Open
Constructing lunar bases is crucial as lunar missions progress towards utilization and exploitation. The challenging lunar environment, with its unique characteristics and limited resources, requires special materials, structures, and cons…
View article: Closed-Form Solutions for Current Distribution in Ladder-Type Textile Heaters
Closed-Form Solutions for Current Distribution in Ladder-Type Textile Heaters Open
Textile heaters are made of knitted conductive yarns integrated into the fabric, making them stretchable, washable, breathable, and suitable for close-to-skin wear. The non-zero resistance in the lead wires, however, causes non-uniform pow…
View article: Modification in the (NEN-)EN-ISO 7730 model, with regard of the thermal indoor climate assessment in Dutch offices
Modification in the (NEN-)EN-ISO 7730 model, with regard of the thermal indoor climate assessment in Dutch offices Open
Where previously the thermal indoor climate in a Dutch office was mainly assessed on the basis of sedentary activities, one must now also take into account activities associated with a higher metabolic rate to improve health by reducing si…
View article: Mimosa: Modular Self-folding Hinges Kit for Creating Shape-changing Objects
Mimosa: Modular Self-folding Hinges Kit for Creating Shape-changing Objects Open
We developed a shape-changing constructive kit, named Mimosa1. A key component of the toolkit is the modular hinges, each of which is equipped with two antagonistic shape memory alloy (SMA) wires. One wire deforms the hinge to approach its…
View article: Design and modelling of a reversible shape memory alloy torsion hinge actuator
Design and modelling of a reversible shape memory alloy torsion hinge actuator Open
Conventional hinge actuators often face limitations including excessive weight, large size and unpleasant noise. Shape memory alloys (SMAs) offer a solution to address these issues due to their favorable characteristics, such as lightweigh…
View article: Affine Deformation and Self-Assembly Alignment in Hydrogel Nanocomposites
Affine Deformation and Self-Assembly Alignment in Hydrogel Nanocomposites Open
Tailoring the order in hierarchical structures is a key goal of bioinspired nanocomposite design. Recently, nacre-like materials have been developed by solvent evaporation methods that are scalable and attain advanced functionalities. Howe…
View article: Affine deformation and self-assembly alignment in hydrogel nanocomposites
Affine deformation and self-assembly alignment in hydrogel nanocomposites Open
Tailoring order in hierarchical structures is a key goal of bioinspired nanocomposite design. Recently, nacre-like materials have been developed by solvent evaporation methods that are scalable and attain advanced functionalities. However,…
View article: Upper-Body versus Lower-Body Cooling in Individuals with Paraplegia during Arm-Crank Exercise in the Heat
Upper-Body versus Lower-Body Cooling in Individuals with Paraplegia during Arm-Crank Exercise in the Heat Open
Purpose For wheelchair users with a spinal cord injury, the lower body may be a more convenient cooling site than the upper body. However, it remains unknown if leg cooling reduces thermal strain in these individuals. We compared the impac…
View article: BreatheWithMe: Exploring Visual and Vibrotactile Displays for Social Breath Awareness during Colocated, Collaborative Tasks
BreatheWithMe: Exploring Visual and Vibrotactile Displays for Social Breath Awareness during Colocated, Collaborative Tasks Open
Sharing breathing signals has the capacity to provide insights into hidden experiences and enhance interpersonal communication. However, it remains unclear how the modality of breath signals (visual, haptic) is socially interpreted during …
View article: Design of Wearable Finger Sensors for Rehabilitation Applications
Design of Wearable Finger Sensors for Rehabilitation Applications Open
As an emerging technology, smart textiles have attracted attention for rehabilitation purposes or to monitor heart rate, blood pressure, breathing rate, body posture, as well as limb movements. Traditional rigid sensors do not always provi…
View article: Development of a Knitted Strain Sensor for Health Monitoring Applications
Development of a Knitted Strain Sensor for Health Monitoring Applications Open
As an emerging technology, smart textiles have attracted attention for rehabilitation purposes to monitor heart rate, blood pressure, breathing rate, body posture and limb movements. Compared with traditional sensors, knitted sensors const…
View article: A proposal for the prediction of comfort and performance improvement through the use of cooling vests (for construction workers), under transient conditions
A proposal for the prediction of comfort and performance improvement through the use of cooling vests (for construction workers), under transient conditions Open
In this study, using construction activities as an example, a proposal is made for the time-dependent prediction of the thermal sensation and the performance loss using a cooling vest, under transient conditions. The approach presented her…
View article: Development of Low Hysteresis, Linear Weft-Knitted Strain Sensors for Smart Textile Applications
Development of Low Hysteresis, Linear Weft-Knitted Strain Sensors for Smart Textile Applications Open
In recent years, knitted strain sensors have been developed that aim to achieve reliable sensing and high wearability, but they are associated with difficulties due to high hysteresis and low gauge factor (GF) values. This study investigat…
View article: Comfort and performance improvement through the use of cooling vests for construction workers
Comfort and performance improvement through the use of cooling vests for construction workers Open
Purpose The purpose of this study is to analyze the question “In what order of magnitude does the comfort and performance improvement lie with the use of a cooling vest for construction workers?”. Design/methodology/approach The use of per…
View article: Analytical Model for Thermoregulation of the Human Body in Contact with a Phase Change Material (PCM) Cooling Vest
Analytical Model for Thermoregulation of the Human Body in Contact with a Phase Change Material (PCM) Cooling Vest Open
Cooling vests containing phase change materials (PCMs) are used to reduce heat stress in hot environments and maintain the body core temperature within a safe range. The performance of such cooling vests depends in a complicated way on the…
View article: The unfolding of textileness in animated textiles: An exploration of woven textile-forms
The unfolding of textileness in animated textiles: An exploration of woven textile-forms Open
Designers of textile-based interactive systems tend to treat woven fabrics as static materials and lack deeper understandings of how the textile can be designed for responsive behaviours in artefacts. As a result, in most studies across de…
View article: Impact of different climatic conditions on peak core temperature of elite athletes during exercise in the heat: a Thermo Tokyo simulation study
Impact of different climatic conditions on peak core temperature of elite athletes during exercise in the heat: a Thermo Tokyo simulation study Open
Objectives To evaluate how separate and combined climatic parameters affect peak core temperature during exercise in the heat using computer simulations fed with individual data. Methods The impact of eight environmental conditions on rect…
View article: Low-Cost Wearable Fluidic Sweat Collection Patch for Continuous Analyte Monitoring and Offline Analysis
Low-Cost Wearable Fluidic Sweat Collection Patch for Continuous Analyte Monitoring and Offline Analysis Open
Sweat sensors allow for new unobtrusive ways to continuously monitor an athlete's performance and health status. Significant advances have been made in the optimization of sensitivity, selectivity, and durability of electrochemical sweat s…
View article: An End-to-End Deep Learning Pipeline for Football Activity Recognition Based on Wearable Acceleration Sensors
An End-to-End Deep Learning Pipeline for Football Activity Recognition Based on Wearable Acceleration Sensors Open
Action statistics in sports, such as the number of sprints and jumps, along with the details of the corresponding locomotor actions, are of high interest to coaches and players, as well as medical staff. Current video-based systems have th…
View article: A larger statistical basis and a wider application area of a re-derived PPD equation in the (NEN-)EN-ISO 7730 model
A larger statistical basis and a wider application area of a re-derived PPD equation in the (NEN-)EN-ISO 7730 model Open
This paper has the objective to initiate a discussion on potential improvements or extension of the validity of the original equation of the Predicted Percentage of Dissatisfied (PPD), according to (NEN-)EN-ISO 7730. This paper is to be re…
View article: Multi-scale experimental testing on variable stiffness and damping components for semi-active structural control
Multi-scale experimental testing on variable stiffness and damping components for semi-active structural control Open
This paper presents experimental testing of a new semi-active vibration control device comprising a shape memory polymer (SMP) core that is reinforced by an SMP-aramid composite skin. This control device works as a load-transfer component …
View article: A New Approach for Monitoring Sweat Ammonia Levels Using a Ventilated Capsule
A New Approach for Monitoring Sweat Ammonia Levels Using a Ventilated Capsule Open
Ammonium levels in sweat can potentially be used to measure muscle fatigue and to diagnose particular metabolic myopathies. To research the potential use of ammonia in sweat as a biomarker, a new real-time monitoring system is developed. T…