52 research outputs found
Understanding creativity
We have never seen creativity. More precisely, we have never seen the creative process; what we have seen is the creative individual (ex ante) and the outcome of creativity (ex post). Therefore we try to understand creativity by examining creative individuals and their creations. In this paper we only consider the creation of new knowledge. We draw on a wide variety of backgrounds. We wander into the area of cognitive psychology to investigate who is talented for creativity. We also draw on arts, history and philosophy of science, stories of mystics, some great novels and essays we have read as well as our experience in both working with creatives and creating new knowledge. Based on this shaky foundation we will describe creativity as illumination, through jokes, as a quest for harmony, as being kissed by the muse
The 1991 3rd NASA Symposium on VLSI Design
Papers from the symposium are presented from the following sessions: (1) featured presentations 1; (2) very large scale integration (VLSI) circuit design; (3) VLSI architecture 1; (4) featured presentations 2; (5) neural networks; (6) VLSI architectures 2; (7) featured presentations 3; (8) verification 1; (9) analog design; (10) verification 2; (11) design innovations 1; (12) asynchronous design; and (13) design innovations 2
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Make-buy decisions in the face of radical innovations.
Some research in the area of make-buy decisions for new technologies suggests that it is a good
idea for a company to pursue a fairly rigorous âmakeâ policy in the early days of a potentially
disruptive innovation. Other studies prescribe exactly the opposite, promoting instead a âbuyâ
strategy. This lack of convergence points to the fact that the scheme of categorization used to
analyze make-buy decisions in the face of radical innovations is not yet complete. Accordingly,
this thesis builds upon prior work on make-buy decisions and disruptive technologies, and
constructs two new hypotheses by introducing evidence from research in the areas of (1) supplier
relationships and (2) industry clockspeed.
Using a three-phase research design involving both case studies and a survey, this research shows
that close relationships between customer firms and principal suppliers that are built on trust and
personal relationships do not play an important long-term role in the development of radical
innovations. Thus, while previous research in this area underlines the value of these relationships
during the day-to-day operations of a business, this evidence draws into question whether they are
helpful in the face of a radical innovation.
The results also show that an industryâs clockspeed has no significant bearing on the success or
failure of any particular make-buy strategy for a radical innovation. Because many of the
prescriptive frameworks and strategic formulas put forward in the literature for make-buy
decisions involving radical innovations are based on observations from fast clockspeed industries,
this conclusion effectively broadens the potential applicability of prior research in this area
The Design and Testing of a Picosatellite, The TubeSatellite CTSAT-1
This thesis consists in designing and testing the payload of a TubeSat low-cost satellite,
called CTSAT-1. Instead of spend large quantities of money to space research, this
picosatellite offers a very low-cost solution to provide answers for institutions investigations.
Designing and assembling a picosatellite of this size represents a big challenge due
to packing of a lot electronics and equipments inside TubeSat low dimensions, therefore
providing a unique efforts in reaching a complete small spacecraft.
To keep the budget of the project low as possible, maintaining TubeSat specifications
and space flight requirements, for intensive testing will be used homemade techniques
to achieve satisfactory results without spending too much on expensive equipment
Earth imaging with microsatellites: An investigation, design, implementation and in-orbit demonstration of electronic imaging systems for earth observation on-board low-cost microsatellites.
This research programme has studied the possibilities and difficulties of using 50 kg microsatellites to perform remote imaging of the Earth. The design constraints of these missions are quite different to those encountered in larger, conventional spacecraft. While the main attractions of microsatellites are low cost and fast response times, they present the following key limitations: Payload mass under 5 kg, Continuous payload power under 5 Watts, peak power up to 15 Watts, Narrow communications bandwidths (9.6 / 38.4 kbps), Attitude control to within 5°, No moving mechanics. The most significant factor is the limited attitude stability. Without sub-degree attitude control, conventional scanning imaging systems cannot preserve scene geometry, and are therefore poorly suited to current microsatellite capabilities. The foremost conclusion of this thesis is that electronic cameras, which capture entire scenes in a single operation, must be used to overcome the effects of the satellite's motion. The potential applications of electronic cameras, including microsatellite remote sensing, have erupted with the recent availability of high sensitivity field-array CCD (charge-coupled device) image sensors. The research programme has established suitable techniques and architectures necessary for CCD sensors, cameras and entire imaging systems to fulfil scientific/commercial remote sensing despite the difficult conditions on microsatellites. The author has refined these theories by designing, building and exploiting in-orbit five generations of electronic cameras. The major objective of meteorological scale imaging was conclusively demonstrated by the Earth imaging camera flown on the UoSAT-5 spacecraft in 1991. Improved cameras have since been carried by the KITSAT-1 (1992) and PoSAT-1 (1993) microsatellites. PoSAT-1 also flies a medium resolution camera (200 metres) which (despite complete success) has highlighted certain limitations of microsatellites for high resolution remote sensing. A reworked, and extensively modularised, design has been developed for the four camera systems deployed on the FASat-Alfa mission (1995). Based on the success of these missions, this thesis presents many recommendations for the design of microsatellite imaging systems. The novelty of this research programme has been the principle of designing practical camera systems to fit on an existing, highly restrictive, satellite platform, rather than conceiving a fictitious small satellite to support a high performance scanning imager. This pragmatic approach has resulted in the first incontestable demonstrations of the feasibility of remote sensing of the Earth from inexpensive microsatellites
THE REALISM OF ALGORITHMIC HUMAN FIGURES A Study of Selected Examples 1964 to 2001
It is more than forty years since the first wireframe images of the Boeing Man revealed a stylized hu-man pilot in a simulated pilot's cabin. Since then, it has almost become standard to include scenes in Hollywood movies which incorporate virtual human actors. A trait particularly recognizable in the games industry world-wide is the eagerness to render athletic muscular young men, and young women with hour-glass body-shapes, to traverse dangerous cyberworlds as invincible heroic figures. Tremendous efforts in algorithmic modeling, animation and rendering are spent to produce a realistic and believable appearance of these algorithmic humans. This thesis develops two main strands of research by the interpreting a selection of examples. Firstly, in the computer graphics context, over the forty years, it documents the development of the creation of the naturalistic appearance of images (usually called photorealism ). In particular, it de-scribes and reviews the impact of key algorithms in the course of the journey of the algorithmic human figures towards realism . Secondly, taking a historical perspective, this work provides an analysis of computer graphics in relation to the concept of realism. A comparison of realistic images of human figures throughout history with their algorithmically-generated counterparts allows us to see that computer graphics has both learned from previous and contemporary art movements such as photorealism but also taken out-of-context elements, symbols and properties from these art movements with a questionable naivety. Therefore, this work also offers a critique of the justification of the use of their typical conceptualization in computer graphics. Although the astounding technical achievements in the field of algorithmically-generated human figures are paralleled by an equally astounding disregard for the history of visual culture, from the beginning 1964 till the breakthrough 2001, in the period of the digital information processing machine, a new approach has emerged to meet the apparently incessant desire of humans to create artificial counterparts of themselves. Conversely, the theories of traditional realism have to be extended to include new problems that those active algorithmic human figures present
Modulation of the Hippo signalling pathway by a novel miRNA to enhance cardiac regenerative capacity
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