Skip to main content

Home/ Sensorica Knowledge/ Group items tagged sensing

Rss Feed Group items tagged

Filter: All | Bookmarks | Topics Simple Middle
Tiberius Brastaviceanu

Free-Form Authority Models - P2P Foundation - 0 views

p2pfoundation.net/Free-Form_Authority_Models

decision making decision-making

shared by Tiberius Brastaviceanu on 17 Jul 12 - No Cached
  • ‘authority models’in peer production, contrasts owner-centric authority models from free-form models
  • define the authority models at work in such projects. The models define access and the workflow, and whether there is any quality control.
  • the owner-centric model, entries can only be modified with the permission of a specific ‘owner’ who has to defend the integrity of his module.
  • ...11 more annotations...
  • The free-form model connotes more of a sense that all users are on the “same level," and that expertise will be universally recognized and deferred to.
  • the owner-centric authority model assumes the owner is the de facto expert in the topic at hand
  • In the case of the Wikipedia, the adherents of the owner-centric model, active in the pre-Wikipedia "Nupedia" model, lost out, and presumable, the success of Wikipedia has proven them wrong
  • dominance of difficult people, trolls, and their enablers
  • Far too much credence and respect accorded to people who in other Internet contexts would be labelled "trolls."
  • Wikipedia has, to its credit, done something about the most serious trolling and other kinds of abuse: there is an Arbitration Committee that provides a process whereby the most disruptive users of Wikipedia can be ejected from the project. But there are myriad abuses and problems that never make it to mediation, let alone arbitration.
  • most people working on Wikipedia--the constant fighting can be so off-putting as to drive them away
  • any person who can and wants to work politely with well-meaning
  • root problem: anti-elitism, or lack of respect for expertise.
  • Wikipedia lacks the habit or tradition of respect for expertise
  • nearly everyone with much expertise but little patience will avoid editing Wikipedia
  • Tiberius Brastaviceanu on 17 Jul 12
     
    from p2p foundation 
Francois Bergeron

Displacement | Microstrain - 0 views

www.microstrain.com/displacement

supplier sensors strain displacement company material

shared by Francois Bergeron on 06 Jun 12 - No Cached
  • MicroStrain offers a range of miniature displacement sensors.  These include contact sensors, non-contact sensors, and signal conditioners. Within our contact sensors, we offer gauging, non-gauging, sub-miniature (very small) and micro-miniature (smallest available on the market) displacement sensor designs.  MicroStrain displacement/position sensors are known as DVRTs (Differential Variable Reluctance Transducers) which are half-bridge LVDTs (Linear Variable Differential Transformers).  Our DVRTs deliver a very high linear stroke range to body length ratio, and can be used in environments where traditional LVDTs are too large.  MicroStrain’s miniature displacement transducers are extremely robust, capable of operating at temperatures up to 175°C in corrosive media such as saline, oil, and brake fluid.  The near frictionless design enables sensors to operate over millions of cycles without wear or degradation in signal quality.
  • croStrain offers a range of miniature displacement sensors.  These include contact sensors, non-contact sensors, and signal conditioners. Within our contact sensors, we offer gauging, non-gauging, sub-miniature (very small) and micro-miniature (smallest available on the market) displacement sensor designs.  MicroStrain displacement/position sensors are known as DVRTs (Differential Variable Reluctance Transducers) which are half-bridge LVDTs (Linear Variable Differential Transformers).  Our DVRTs deliver a very high linear stroke range to body length ratio, and can be used in environments where traditional LVDTs are too large.  MicroStrain’s miniature displacement transducers are extremely robust, capable of operating at temperatures up to 175°C in corrosive media such as saline, oil, and brake fluid.  The near frictionless design enables sensors to operate over millions of cycles without wear or degradation in signal quality. MicroStrain’s displacement sensing products including transducers, signal conditioners, and motherboards. These systems provide highly precise measurement solutions. MicroStrain’s contact displacement transducers deliver highly precise linear measurements with an extremely small, miniature design.  Both gauging and non-gauging displacement transducers are available. Our non-contact displacement transducers are designed to measure the displacement and proximity of a metal target without physical contact. MicroStrain offers wireless, analog, and digital output DVRT signal conditioners. Signal conditioners are required for use with MicroStrain DVRT displacement sensors.   .familyNav1, .familyNav2, .familyNav3, .familyNav4 { background: none repeat scroll 0 0 #CCCCCC; color: #FFFFFF; display: block; font-size: 14px; margin: 1px 0; padding: 6px 0 3px 6px; text-decoration: none; } .familyNav1:hover, .familyNav2:hover, .familyNav3:hover, .familyNav4:hover { opacity:1.0; filter:alpha(opacity=100); } .familyNav1:hover, .familyNav1.live { background:#0468AD; } .familyNav2:hover, .familyNav2.live{ background:#32641E; } .familyNav3:hover, .familyNav3.live{ background:#B55A11; } .familyNav4:hover, .familyNav4.live{ background:#76285D; } .familySub { margin: -1px 0 0; opacity:0.7; filter:alpha(opacity=80); font-size:12px; } .familySub img { width: 22px; } WIRELESS SENSOR NETWORKS
Tiberius Brastaviceanu

POWER-CURVE SOCIETY: The Future of Innovation, Opportunity and Social Equity in the Eme... - 1 views

www.aspeninstitute.org/...tion-opportunity-social-equity

book paper value networks

shared by Tiberius Brastaviceanu on 17 Oct 13 - No Cached
  • how technological innovation is restructuring productivity and the social and economic impact resulting from these changes
  • concern about the technological displacement of jobs, stagnant middle class income, and wealth disparities in an emerging "winner-take-all" economy
  • personal data ecosystems that could potentially unlock a revolutionary wave of individual economic empowerment
  • ...70 more annotations...
  • the bell curve described the wealth and income distribution of American society
  • As the technology boom of the 1990s increased productivity, many assumed that the rising water level of the economy was raising all those middle class boats. But a different phenomenon has also occurred. The wealthy have gained substantially over the past two decades while the middle class has remained stagnant in real income, and the poor are simply poorer.
  • America is turning into a power-curve society: one where there are a relative few at the top and a gradually declining curve with a long tail of relatively poorer people.
  • For the first time since the end of World War II, the middle class is apparently doing worse, not better, than previous generations.
  • an alarming trend
  • What is the role of technology in these developments?
  • a sweeping look at the relationship between innovation and productivity
  • New Economy of Personal Information
  • Power-Curve Society
  • the future of jobs
  • the report covers the social, policy and leadership implications of the “Power-Curve Society,”
  • World Wide Web
  • as businesses struggle to come to terms with this revolution, a new set of structural innovations is washing over businesses, organizations and government, forcing near-constant adaptation and change. It is no exaggeration to say that the explosion of innovative technologies and their dense interconnections is inventing a new kind of economy.
  • the new technologies are clearly driving economic growth and higher productivity, the distribution of these benefits is skewed in worrisome ways.
  • the networked economy seems to be producing a “power-curve” distribution, sometimes known as a “winner-take-all” economy
  • Economic and social insecurity is widespread.
  • major component of this new economy, Big Data, and the coming personal data revolution fomenting beneath it that seeks to put individuals, and not companies or governments, at the forefront. Companies in the power-curve economy rely heavily on big databases of personal information to improve their marketing, product design, and corporate strategies. The unanswered question is whether the multiplying reservoirs of personal data will be used to benefit individuals as consumers and citizens, or whether large Internet companies will control and monetize Big Data for their private gain.
  • Why are winner-take-all dynamics so powerful?
  • appear to be eroding the economic security of the middle class
  • A special concern is whether information and communications technologies are actually eliminating more jobs than they are creating—and in what countries and occupations.
  • How is the power-curve economy opening up opportunities or shutting them down?
  • Is it polarizing income and wealth distributions? How is it changing the nature of work and traditional organizations and altering family and personal life?
  • many observers fear a wave of social and political disruption if a society’s basic commitments to fairness, individual opportunity and democratic values cannot be honored
  • what role government should play in balancing these sometimes-conflicting priorities. How might educational policies, research and development, and immigration policies need to be altered?
  • The Innovation Economy
  • Conventional economics says that progress comes from new infusions of capital, whether financial, physical or human. But those are not necessarily the things that drive innovation
  • What drives innovation are new tools and then the use of those new tools in new ways.”
  • at least 50 percent of the acceleration of productivity over these years has been due to ICT
  • economists have developed a number of proxy metrics for innovation, such as research and development expenditures.
  • Atkinson believes that economists both underestimate and overestimate the scale and scope of innovation.
  • Calculating the magnitude of innovation is also difficult because many innovations now require less capital than they did previously.
  • Others scholars
  • see innovation as going in cycles, not steady trajectories.
  • A conventional approach is to see innovation as a linear, exponential phenomenon
  • leads to gross errors
  • Atkinson
  • believes that technological innovation follows the path of an “S-curve,” with a gradual increase accelerating to a rapid, steep increase, before it levels out at a higher level. One implication of this pattern, he said, is that “you maximize the ability to improve technology as it becomes more diffused.” This helps explain why it can take several decades to unlock the full productive potential of an innovation.
  • innovation keeps getting harder. It was pretty easy to invent stuff in your garage back in 1895. But the technical and scientific challenges today are huge.”
  • costs of innovation have plummeted, making it far easier and cheaper for more people to launch their own startup businesses and pursue their unconventional ideas
  • innovation costs are plummeting
  • Atkinson conceded such cost-efficiencies, but wonders if “the real question is that problems are getting more complicated more quickly than the solutions that might enable them.
  • we may need to parse the different stages of innovation: “The cost of innovation generally hasn’t dropped,” he argued. “What has become less expensive is the replication and diffusion of innovation.”
  • what is meant by “innovation,”
  • “invention plus implementation.”
  • A lot of barriers to innovation can be found in the lack of financing, organizational support systems, regulation and public policies.
  • 90 percent of innovation costs involve organizational capital,”
  • there is a serious mismatch between the pace of innovation unleashed by Moore’s Law and our institutional and social capacity to adapt.
  • This raises the question of whether old institutions can adapt—or whether innovation will therefore arise through other channels entirely. “Existing institutions are often run by followers of conventional wisdom,”
  • The best way to identify new sources of innovation, as Arizona State University President Michael Crow has advised, is to “go to the edge and ignore the center.”
  • Paradoxically, one of the most potent barriers to innovation is the accelerating pace of innovation itself.
  • Institutions and social practice cannot keep up with the constant waves of new technologies
  • “We are moving into an era of constant instability,”
  • “and the half-life of a skill today is about five years.”
  • Part of the problem, he continued, is that our economy is based on “push-based models” in which we try to build systems for scalable efficiencies, which in turn demands predictability.
  • The real challenge is how to achieve radical institutional innovations that prepare us to live in periods of constant two- or three-year cycles of change. We have to be able to pick up new ideas all the time.”
  • pace of innovation is a major story in our economy today.
  • The App Economy consists of a core company that creates and maintains a platform (such as Blackberry, Facebook or the iPhone), which in turn spawns an ecosystem of big and small companies that produce apps and/or mobile devices for that platform
  • tied this success back to the open, innovative infrastructure and competition in the U.S. for mobile devices
  • standard
  • The App Economy illustrates the rapid, fluid speed of innovation in a networked environment
  • crowdsourcing model
  • winning submissions are
  • globally distributed in an absolute sense
  • problem-solving is a global, Long Tail phenomenon
  • As a technical matter, then, many of the legacy barriers to innovation are falling.
  • small businesses are becoming more comfortable using such systems to improve their marketing and lower their costs; and, vast new pools of personal data are becoming extremely useful in sharpening business strategies and marketing.
  • Another great boost to innovation in some business sectors is the ability to forge ahead without advance permission or regulation,
  • “In bio-fabs, for example, it’s not the cost of innovation that is high, it’s the cost of regulation,”
  • This notion of “permissionless innovation” is crucial,
  • “In Europe and China, the law holds that unless something is explicitly permitted, it is prohibited. But in the U.S., where common law rather than Continental law prevails, it’s the opposite
Kurt Laitner

On the Phenomenon of Bullshit Jobs - STRIKE! - 1 views

strikemag.org/bullshit-jobs

*davidgraeber bullshit jobs

shared by Kurt Laitner on 22 Jun 15 - No Cached
  • financial services or telemarketing, or the unprecedented expansion of sectors like corporate law, academic and health administration, human resources, and public relations
  • provide administrative, technical, or security support for these industries, or for that matter the whole host of ancillary industries (dog-washers, all-night pizza deliverymen) that only exist because everyone else is spending so much of their time working in all the other ones
  • It’s as if someone were out there making up pointless jobs just for the sake of keeping us all working. And here, precisely, lies the mystery. In capitalism, this is exactly what is not supposed to happen
  • ...23 more annotations...
  • Sure, in the old inefficient socialist states like the Soviet Union, where employment was considered both a right and a sacred duty, the system made up as many jobs as they had to (this is why in Soviet department stores it took three clerks to sell a piece of meat)
  • working 40 or even 50 hour weeks on paper, but effectively working 15 hours just as Keynes predicted, since the rest of their time is spent organising or attending motivational seminars
  • The ruling class has figured out that a happy and productive population with free time on their hands is a mortal danger
  • The answer clearly isn’t economic: it’s moral and political
  • And, on the other hand, the feeling that work is a moral value in itself, and that anyone not willing to submit themselves to some kind of intense work discipline for most of their waking hours deserves nothing, is extraordinarily convenient for them
  • Hell is a collection of individuals who are spending the bulk of their time working on a task they don’t like and are not especially good at
  • they all become so obsessed with resentment at the thought that some of their co-workers might be spending more time making cabinets
  • It’s not entirely clear how humanity would suffer were all private equity CEOs, lobbyists, PR researchers, actuaries, telemarketers, bailiffs or legal consultants to similarly vanish. (Many suspect it might markedly improve.)
  • plagued with debts and a newborn daughter, ended up, as he put it, “taking the default choice of so many directionless folk: law school
  • Now he’s a corporate lawyer working in a prominent New York firm. He was the first to admit that his job was utterly meaningless, contributed nothing to the world, and, in his own estimation, should not really exist
  • I would not presume to tell someone who is convinced they are making a meaningful contribution to the world that, really, they are not. But what about those people who are themselves convinced their jobs are meaningless?
  • (Answer: if 1% of the population controls most of the disposable wealth, what we call “the market” reflects what they think is useful or important, not anybody else.)
  • should you meet them at parties and admit that you do something that might be considered interesting (an anthropologist, for example), will want to avoid even discussing their line of work entirely
  • This is a profound psychological violence here. How can one even begin to speak of dignity in labour when one secretly feels one’s job should not exist?
  • Yet it is the peculiar genius of our society that its rulers have figured out a way, as in the case of the fish-fryers, to ensure that rage is directed precisely against those who actually do get to do meaningful work
  • in our society, there seems a general rule that, the more obviously one’s work benefits other people, the less one is likely to be paid for it
  • There’s a lot of questions one could ask here, starting with, what does it say about our society that it seems to generate an extremely limited demand for talented poet-musicians, but an apparently infinite demand for specialists in corporate law?
  • Even more perverse, there seems to be a broad sense that this is the way things should b
  • You can see it when tabloids whip up resentment against tube workers for paralysing London during contract disputes: the very fact that tube workers can paralyse London shows that their work is actually necessary, but this seems to be precisely what annoys people
  • It’s even clearer in the US, where Republicans have had remarkable success mobilizing resentment against school teachers, or auto workers (and not, significantly, against the school administrators or auto industry managers who actually cause the problems)
  • It’s as if they are being told “but you get to teach children! Or make cars! You get to have real jobs! And on top of that you have the nerve to also expect middle-class pensions and health care?”
  • If someone had designed a work regime perfectly suited to maintaining the power of finance capital, it’s hard to see how they could have done a better job
  • The remainder are divided between a terrorised stratum of the – universally reviled – unemployed and a larger stratum who are basically paid to do nothing, in positions designed to make them identify with the perspectives and sensibilities of the ruling class (managers, administrators, etc) – and particularly its financial avatars – but, at the same time, foster a simmering resentment against anyone whose work has clear and undeniable social value
Francois Bergeron

United States Patent: 5316950 - 0 views

patft.uspto.gov/...nph-Parser

shared by Francois Bergeron on 01 Sep 11 - No Cached
  • One method for measuring contaminants which has been extensively discussed is the use of fiber-optic guided systems for in situ spectroscopy and chemical sensing,
  • Recently, a cooperative effort with many participants
  • Francois Bergeron on 01 Sep 11
     
    optical measurement and strain gauge
Tiberius Brastaviceanu

The theory and application of fiber optic sensors with spread parameters - 0 views

www.eaeeie.org/...index.html

theory application optic sensors fiber OTDR

shared by Tiberius Brastaviceanu on 09 Sep 11 - No Cached
  • Tiberius Brastaviceanu on 09 Sep 11
     
    This is a very nice website! 
Tiberius Brastaviceanu

4.1.D. Peer governance in peer production? - P2P Foundation - 0 views

p2pfoundation.net/vernance_in_peer_production%3F

peer governance p2pfundation

shared by Tiberius Brastaviceanu on 07 Apr 11 - No Cached
  • quality control
  • access and the workflow
  • The free-form model, which Wikipedia employs, allows anyone to edit any entry at any time.
  • ...13 more annotations...
  • the owner-centric model
  • permission of a specific ‘owner’ who has to defend the integrity of his module.
  • different assumptions and effects.
  • The free-form model connotes more of a sense that all users are on the “same level," and that expertise will be universally recognized and deferred to
  • the creator of an entry is spared the trouble of reviewing every change before it is integrated, as well as the need to perform the integration
  • the owner-centric authority model assumes the owner is the de facto expert in the topic at hand,
  • and all others must defer to them.
  • the owner must review all modification proposals, and take the time to integrate the good ones.
  • The owner-centric model is better for quality, but takes more time, while the free-form model increases scope of coverage and is very fast.
  • 'equipotentiality'
  • rules are generated within the community itself, though mostly in the early phases. After a while, they tend to consolidate and they are a given for the new participants who come later
  • a process of socialization is crucial to eventual acceptance . The process is akin to the tradition of artisanship, which has been used in the three-degree system of original freemasonry as well: apprentice, companion (fellow craft), master. But it is implied rather than formalized.
  • Crucial to the success of many collaborative projects is their implementation of the reputation schemes.
Tiberius Brastaviceanu

A Robust Uniaxial Force Sensor for Minimally Invasive Surgery - 0 views

www.ncbi.nlm.nih.gov/...PMC2910788

force axis honigmann sensor biomedical optical uniaxial

shared by Tiberius Brastaviceanu on 23 Apr 11 - No Cached
  • miniature uniaxial force sensor for use within a beating heart during mitral valve annuloplasty
  • provides a hollow core to pass instrumentation
  • Fiber optic transduction eliminates electrical circuitry within the heart, and acetal components minimize ultrasound-imaging artifacts
  • ...4 more annotations...
  • 0–4-N force range
  • errors of 0.13 N (<3.2%)
  • MINIMALLY invasive surgery (MIS)
  • surgeons lose the critical sense of touch during MIS because instruments are passed through ports that mask the surgeon's feel of the internal operating environment.
Tiberius Brastaviceanu

Is Shame Necessary? | Conversation | Edge - 0 views

www.edge.org/...is-shame-necessary

shame collaboration cooperation paper theory

shared by Tiberius Brastaviceanu on 28 Oct 11 - No Cached
  • What is shame's purpose? Is shame still necessary?
  • Shame is what is supposed to occur after an individual fails to cooperate with the group.
  • Whereas guilt is evoked by an individual's standards, shame is the result of group standards. Therefore, shame, unlike guilt, is felt only in the context of other people.
  • ...53 more annotations...
  • Many animals use visual observations to decide whether to work with others.
  • humans are more cooperative when they sense they're being watched.
  • The feeling of being watched enhances cooperation, and so does the ability to watch others. To try to know what others are doing is a fundamental part of being human
  • Shame serves as a warning to adhere to group standards or be prepared for peer punishment. Many individualistic societies, however, have migrated away from peer punishment toward a third-party penal system
  • Shame has become less relevant in societies where taking the law into one's own hands is viewed as a breach of civility.
  • Many problems, like most concerning the environment, are group problems. Perhaps to solve these problems we need a group emotion. Maybe we need shame.
  • Guilt prevails in many social dilemmas
  • It is perhaps unsurprising that a set of tools has emerged to assuage this guilt
  • Guilt abounds in many situations where conservation is an issue.
  • The problem is that environmental guilt, though it may well lead to conspicuous ecoproducts, does not seem to elicit conspicuous results.
  • The positive effect of idealistic consumers does exist, but it is masked by the rising demand and numbers of other consumers.
  • Guilt is a valuable emotion, but it is felt by individuals and therefore motivates only individuals. Another drawback is that guilt is triggered by an existing value within an individual. If the value does not exist, there is no guilt and hence no action
  • Getting rid of shaming seems like a pretty good thing, especially in regulating individual behavior that does no harm to others. In eschewing public shaming, society has begun to rely more heavily on individual feelings of guilt to enhance cooperation.
  • five thousand years ago, there arose another tool: writing
  • Judges in various states issue shaming punishments,
  • shaming by the state conflicts with the law's obligation to protect citizens from insults to their dignity.
  • What if government is not involved in the shaming?
  • Is this a fair use of shaming? Is it effective?
  • Shaming might work to change behavior in these cases, but in a world of urgent, large-scale problems, changing individual behavior is insignificant
  • vertical agitation
  • Guilt cannot work at the institutional level, since it is evoked by individual scruples, which vary widely
  • But shame is not evoked by scruples alone; since it's a public sentiment, it also affects reputation, which is important to an institution.
  • corporate brand reputation outranked financial performance as the most important measure of success
  • shame and reputation interact
  • in our early evolution we could gauge cooperation only firsthand
  • Shaming, as noted, is unwelcome in regulating personal conduct that doesn't harm others. But what about shaming conduct that does harm others?
  • why we learned to speak.1
  • Language
  • The need to accommodate the increasing number of social connections and monitor one another could be
  • allowed for gossip, a vector of social information.
  • in cooperation games that allowed players to gossip about one another's performance, positive gossip resulted in higher cooperation.
  • Of even greater interest, gossip affected the players' perceptions of others even when they had access to firsthand information.
  • Human society today is so big that its dimensions have outgrown our brains.
  • What tool could help us gossip in a group this size?
  • We can use computers to simulate some of the intimacy of tribal life, but we need humans to evoke the shame that leads to cooperation. The emergence of new tools— language, writing, the Internet—cannot completely replace the eyes. Face-to-face interactions, such as those outside Trader Joe's stores, are still the most impressive form of dissent.
  • what is stopping shame from catalyzing social change? I see three main drawbacks:
  • Today's world is rife with ephemeral, or "one-off," interactions.
  • Research shows, however, that if people know they will interact again, cooperation improves
  • Shame works better if the potential for future interaction is high
  • In a world of one-off interactions, we can try to compensate for anonymity with an image score,
  • which sends a signal to the group about an individual's or institution's degree of cooperation.
  • Today's world allows for amorphous identities
  • It's hard to keep track of who cooperates and who doesn't, especially if it's institutions you're monitoring
  • Shaming's biggest drawback is its insufficiency.
  • Some people have no shame
  • shame does not always encourage cooperation from players who are least cooperative
  • a certain fraction of a given population will always behave shamelessly
  • if the payoff is high enough
  • There was even speculation that publishing individual bankers' bonuses would lead to banker jealousy, not shame
  • shame is not enough to catalyze major social change
  • This is why punishment remains imperative.
  • Even if shaming were enough to bring the behavior of most people into line, governments need a system of punishment to protect the group from the least cooperative players.
  • Today we are faced with the additional challenge of balancing human interests and the interests of nonhuman life.
  • Tiberius Brastaviceanu on 28 Oct 11
     
    The role of non-rational mechanisms in convergence - social emotions like shame and guilt 
timsandgren

Long distance fiber optic sensing - 0 views

Just found this great webinar on how backscatter technologies can be used to create sensors out of fiber optic cable. https://youtu.be/wK9Gq00uRqY

started by timsandgren on 24 Jul 17 no follow-up yet
« First ‹ Previous 41 - 60 of 75 Next ›
Showing 20▼ items per page