evacuation, pedestrian movement, pedestrian flow, anthropometric data, human behaviour in fire, parametric analysis, biomechanics, roadmap, demographic change, Teknik, Samhällsbyggnadsteknik, Annan samhällsbyggnadsteknik, Engineering and Technology, Civil Engineering, and Other Civil Engineering
This report presents the final output from the project Crowd safety: prototyping for the future. The research includes a scoping study focusing on determining primary parameters for pedestrian movement and experimental results on movement in various conditions that focus on movement speed, contact distance and movement behaviour. A parametric model for predicting movement is presented based on this research and finally a road map is proposed that outlines the relevant steps for future research on pedestrian movement and human behaviour in a hazardous situation.
Wall, Johan and Blekinge Tekniska Högskola, Fakulteten för teknikvetenskaper, Institutionen för maskinteknik
Blekinge Institute of Technology Best practice.
Social Sciences, Educational Sciences, Didactics, Samhällsvetenskap, Utbildningsvetenskap, Didaktik, Learning, Lärande, Pedagogy, Pedagogik, Pedagogical Work, Pedagogiskt arbete, best practice, engineering education, CDIO, design and prototyping, and problem-based setting
The engineer of the 21st century is expected to possess a broad range of skills and abilities. Besides more traditional technical knowledge and engineering skills, interpersonal skills, critical thinking, creativity and design makes its way into the curriculum of our engineering education. At the department of me-chanical engineering, the underlying pedagogical approach to teaching engineer-ing design is based on constructivism. Research has shown that a very good way for students to “construct” their knowledge is to design, build and publicly share artifacts. Consequently, we are aiming to make design and prototyping an integral part of our engineering education. This align well with the CDIO initiative of which BTH is part since 2013.
Electronics Weekly. 2/28/2018, Issue 2722, p11-11. 2/3p. 1 Color Photograph.
RAPID prototyping, FIELD programmable gate arrays -- Evaluation, and EQUIPMENT & supplies
The article offers information on the ZU11EG, ZU17EG and ZU19EG modules as part of the Zynq UltraScale+ field-programmable gate array (FPGA) prototyping boards from Germany-based firm Pro Design Electronic GmbH.
RAPID prototyping, NEW product development, PROTOTYPES, ENGINEERING models, and EQUIPMENT & supplies
The article evaluates the Eden550V, a PolyJet rapid prototyping system, from Stratasys Inc. and offers information on its speed and resolution settings which allows users to match these properties to specific projects.
The main reason for accidents involving trucks or truck combinations is the lack of situationawareness. Drivers of particularly articulated truck combinations need a high level of awarenessabout the state of the vehicle combination and its surroundings. The current steering interface setslimits on the signals that the driver can perceive and the way the driver can act. I see an opportunityto break these limits on the interaction by introducing a new steering interface.The new interface is intuitive and designed specially for articulated truck combinations. Theinterface consists of two physical walls on the left and right side of the driver, an active touch panelin front of the driver, and air vibration generators on the left and right side. The driver controls thelateral position of the truck by controlling the position of the walls. The idea is that the driver caneasily associate the lateral position of the truck between the lane boundaries with the position of hisor her own body between the walls. Further, the driver perceives a map of the surroundings byfeeling and following surfaces on the active touch panel. Moving surfaces on the active touch panelrepresent the truck, trailers, road boundaries, and other traffic users. Important information aboutupcoming traffic is given through air vibrations that are sent by the air vibration generators towardsthe driver’s hand.The new interface is designed for highly automated driving, where automation allows the truck tofollow a lane at a certain speed. The driver still actively participates in the control of the vehicle, andis always in direct control of the walls. There is thus only one mode and there is no need to switchbetween modes. If for any reason it is desired or needed that the vehicle does not follow a lane orcourse, then the driver can use the walls to control the heading of the truck.The main strength of the new interface lies in the high level of intuitiveness. The definition that isadopted for the term ‘intuitive’ in the context of driving is ‘easy to associate the vehicle with (partof) your own body’. The association is made through similarities in the order of control, sense mode,space, and time. Furthermore, the new interface exploits the possibilities with the haptic senses,which are the senses that allow us to physically feel our own body and our environment. Unlikeother senses, the haptic senses are closely coupled with the motor function. After all, very often weuse the same body part to manipulate as with which we sense haptic cues.Surely, at this stage of the design, the effectiveness of the new interface cannot be proven. For now,we can only reason and argue. The effectiveness depends on different aspects, such as the driver’sability to operate the walls, the driver’s ability to perceive and understand the haptic information,and the technologies for steer-by-wire and detecting lane markings. Physical prototypes of the wallsand the touch panel have given more insight about the effectiveness, intuitiveness, and comfort.The prototypes have also helped to imagine what the new driving experience would be like. Inparticular, simple tests have been performed with the prototype of the walls in a real truck on a testtrack.
RAPID prototyping, BUSINESS planning, and BUILDINGS
The article reports on a building planned by Sikorsky for a Rapid Prototyping and Military Derivatives Completion Center at its Schweizer Aircraft subsidiary in Elmira, New York. The new center is a step in the long-range corporate strategy to increase capacity to meet the growing demand for military products. It will be branded the Sikorsky HAWK Works @ Schweizer Aircraft and be the primary completion center for all Black Hawk and Naval Hawk derivative aircraft-mostly for foreign customers.
Medical and Health Sciences, Medical Biotechnology, Biomaterials Science, Medicin och hälsovetenskap, Medicinsk bioteknologi, Biomaterialvetenskap, Engineering and Technology, Teknik och teknologier, Microporosity, Macroporosity, Porosity, Pore size, Scaffold, Bone regeneration, Microstructure, and Rapid prototyping
Biomaterials in the form of scaffolds hold great promise in the regeneration of diseased tissues. The scaffolds stimulate cellular adhesion, proliferation and differentiation. While the scaffold composition will dictate their biocompatibility, their porosity plays a key role in allowing proper cell penetration, nutrient diffusion as well as bone ingrowth. Porous scaffolds are processed with the help of a wide variety of techniques. Designing scaffolds with the appropriate porosity is a complex issue since this may jeopardize other physico-chemical properties. From a macroscopic point of view, parameters such as the overall architecture, pore morphology, interconnectivity and pore size distribution, have unique roles in allowing bone ingrowth to take place. From a microscopic perspective, the adsorption and retention of proteins in the microporosities of the material will dictate the subsequent cell adhesion. Therefore, the microstructure of the substrate can determine cell proliferation as well as the expression of specific osteogenic genes. This review aims at discussing the effect of micro- and macroporosity on the physicochemical and biological properties of scaffolds for musculo-skeletal tissue regeneration.