Graham Mossman " The Big Data Internet of ... What?!"Dataconomy Media
This document discusses the hype around big data and the internet of things. It outlines Gartner's hype cycle and argues that while the underlying technologies of big data, data science, and IoT sensors are new and useful, growth will not be exponential and these fields are not ready for widespread adoption. The document advocates learning data science skills but warns against believing hype and implementing projects before a clear business case is proven.
The Internet of Things - What It Is, Where Its Headed and Its ApplicationsJustin Grammens
This presentation covers the history of the IoT, its various phases in the Gartner Hype Cycle, why we should care about the IoT, specific industry segments, local Minnesota success stories and some closing thoughts... all on the Internet of Things. Interesting Google Trends and charts on future growth of the IoT are covered as key component as a well.
Hong Kong Trade Development Council Presentation Final VersionBenjamin Shobert
The document discusses strategies for small and medium enterprises (SMEs) to market to North American corporate buyers and retailers. It emphasizes that SMEs need to focus on innovation, building their own brand, and meeting retailers' needs in order to succeed. Specifically, the document recommends that SMEs (1) innovate through new product features and functionality to drive higher sales, (2) develop their own brand identity rather than relying on captive manufacturing, and (3) understand retailers' true needs which may differ from what they say. This will allow SMEs to transition from being product suppliers to becoming innovative brand builders.
This presentation was given by Mart Muller of Wizzix as part of the Sparked Toolkit Session: SharePoint Nightmares.
It discusses the problems that Mart has found when it comes to non-SharePoint deployment, and ofcourse, his solution to the challenges he faced.
Carlos Delgado, un técnico en sistemas bagal, presenta a sus compañeros aprendices en el SENA y les pide paciencia ya que se siente un poco perdida. También comenta que el aula está fría y desea compartir risas y besos con todos, destacando la importancia de conocer gente valiosa mientras se trabaja unido por el amor a los animales.
Melinda and Robby are beginning their new life together and seem very happy. They have been spending time with each other and took engagement pictures, signaling the start of their new life together. Melinda expresses her love for Robby.
This document contains prompts for a customer survey about loyalty including a recent positive customer experience that increased loyalty, favorite rewards perks, things that could decrease loyalty, favorite smartphone apps, an in-store experience that created a positive impression, brands that appeal to the customer, situations where the customer feels valued, and how the customer would ideally improve rewards programs.
Graham Mossman " The Big Data Internet of ... What?!"Dataconomy Media
This document discusses the hype around big data and the internet of things. It outlines Gartner's hype cycle and argues that while the underlying technologies of big data, data science, and IoT sensors are new and useful, growth will not be exponential and these fields are not ready for widespread adoption. The document advocates learning data science skills but warns against believing hype and implementing projects before a clear business case is proven.
The Internet of Things - What It Is, Where Its Headed and Its ApplicationsJustin Grammens
This presentation covers the history of the IoT, its various phases in the Gartner Hype Cycle, why we should care about the IoT, specific industry segments, local Minnesota success stories and some closing thoughts... all on the Internet of Things. Interesting Google Trends and charts on future growth of the IoT are covered as key component as a well.
Hong Kong Trade Development Council Presentation Final VersionBenjamin Shobert
The document discusses strategies for small and medium enterprises (SMEs) to market to North American corporate buyers and retailers. It emphasizes that SMEs need to focus on innovation, building their own brand, and meeting retailers' needs in order to succeed. Specifically, the document recommends that SMEs (1) innovate through new product features and functionality to drive higher sales, (2) develop their own brand identity rather than relying on captive manufacturing, and (3) understand retailers' true needs which may differ from what they say. This will allow SMEs to transition from being product suppliers to becoming innovative brand builders.
This presentation was given by Mart Muller of Wizzix as part of the Sparked Toolkit Session: SharePoint Nightmares.
It discusses the problems that Mart has found when it comes to non-SharePoint deployment, and ofcourse, his solution to the challenges he faced.
Carlos Delgado, un técnico en sistemas bagal, presenta a sus compañeros aprendices en el SENA y les pide paciencia ya que se siente un poco perdida. También comenta que el aula está fría y desea compartir risas y besos con todos, destacando la importancia de conocer gente valiosa mientras se trabaja unido por el amor a los animales.
Melinda and Robby are beginning their new life together and seem very happy. They have been spending time with each other and took engagement pictures, signaling the start of their new life together. Melinda expresses her love for Robby.
This document contains prompts for a customer survey about loyalty including a recent positive customer experience that increased loyalty, favorite rewards perks, things that could decrease loyalty, favorite smartphone apps, an in-store experience that created a positive impression, brands that appeal to the customer, situations where the customer feels valued, and how the customer would ideally improve rewards programs.
This document discusses four types of sentences: simple, compound, complex, and compound-complex. It provides examples and definitions of each. A simple sentence contains a subject and verb and expresses one thought. A compound sentence uses a conjunction to join two independent clauses. A complex sentence uses a subordinating conjunction to join an independent and dependent clause. A compound-complex sentence contains at least two independent clauses joined by a conjunction as well as at least one dependent clause.
The document summarizes several intestinal protozoan parasites that can infect humans. It describes the causal agents, life cycles, transmission routes, clinical features, laboratory diagnosis, and treatment for parasites including Entamoeba histolytica, Giardia lamblia, Cryptosporidium parvum, Cyclospora cayetanensis, and Balantidium coli. Key details provided on each parasite include their geographic distribution, sites of infection within the host, symptoms caused, and diagnostic microscopic stages observed in stool samples.
A Model for Activity Recognition in Pervasive Enviornment Inspired by Global ...Mahdi Nasseri
This document appears to be a presentation in Persian given by Mehdi Nasiri, a faculty member at Sheikh Bahai University. The presentation discusses topics like cognitive science, ambient awareness, and future work. It includes sections on machine learning, cognitive science, an ambient awareness model, conclusions, and future work. The presentation cites Mark Weiser's theory that the best technologies are those that disappear and weave themselves into the fabric of everyday life.
Opal is one of the most sought after gemstones and probably the most attractive of all available. If you want heads turning for you, opal jewellery is an obvious choice because the colors change with each movement. Visit opalmine.com for details.
This summary provides the high level information from the document in 3 sentences:
The document discusses how social networks can influence behaviors both positively and negatively. It explains that factors like obesity, smoking, and depression can spread through social connections even between people who do not know each other personally. The document also discusses how the structure of social networks, such as having the right balance of new and old members, can impact outcomes in fields like Broadway musicals, scientific work, and business innovation.
This document provides frequently asked questions and answers for students taking online courses. It addresses questions about time commitment, communication tools, expectations, and skills needed for online learning. Successful online students are self-motivated, organized, able to manage their time well, and comfortable with computers. While online courses do not meet face-to-face, students are still expected to devote the same time as in-person classes and communicate using online tools like bulletin boards and email. Academic honesty is still required, with no plagiarizing or reusing past work permitted.
This document discusses four types of sentences: simple, compound, complex, and compound-complex. It provides examples and definitions of each. A simple sentence contains a subject and verb and expresses one thought. A compound sentence uses a conjunction to join two independent clauses. A complex sentence uses a subordinating conjunction to join an independent and dependent clause. A compound-complex sentence contains at least two independent clauses joined by a conjunction as well as at least one dependent clause.
The document summarizes several intestinal protozoan parasites that can infect humans. It describes the causal agents, life cycles, transmission routes, clinical features, laboratory diagnosis, and treatment for parasites including Entamoeba histolytica, Giardia lamblia, Cryptosporidium parvum, Cyclospora cayetanensis, and Balantidium coli. Key details provided on each parasite include their geographic distribution, sites of infection within the host, symptoms caused, and diagnostic microscopic stages observed in stool samples.
A Model for Activity Recognition in Pervasive Enviornment Inspired by Global ...Mahdi Nasseri
This document appears to be a presentation in Persian given by Mehdi Nasiri, a faculty member at Sheikh Bahai University. The presentation discusses topics like cognitive science, ambient awareness, and future work. It includes sections on machine learning, cognitive science, an ambient awareness model, conclusions, and future work. The presentation cites Mark Weiser's theory that the best technologies are those that disappear and weave themselves into the fabric of everyday life.
Opal is one of the most sought after gemstones and probably the most attractive of all available. If you want heads turning for you, opal jewellery is an obvious choice because the colors change with each movement. Visit opalmine.com for details.
This summary provides the high level information from the document in 3 sentences:
The document discusses how social networks can influence behaviors both positively and negatively. It explains that factors like obesity, smoking, and depression can spread through social connections even between people who do not know each other personally. The document also discusses how the structure of social networks, such as having the right balance of new and old members, can impact outcomes in fields like Broadway musicals, scientific work, and business innovation.
This document provides frequently asked questions and answers for students taking online courses. It addresses questions about time commitment, communication tools, expectations, and skills needed for online learning. Successful online students are self-motivated, organized, able to manage their time well, and comfortable with computers. While online courses do not meet face-to-face, students are still expected to devote the same time as in-person classes and communicate using online tools like bulletin boards and email. Academic honesty is still required, with no plagiarizing or reusing past work permitted.
4. 3-1. Rafsegulbylgjur
KEN203 - Námskrár starfsgreina, námsefnisgerð & námsmat, vor 2015
Námsgagnagerð, verkefni 2
Halldór Berg Sæmundsson
Steingrímur B. Gunnarsson
Rafsegulbylgjur
4
Segulbylgjurnar eru
hornrétt, 90° á rafbylgjurnar
5. 3-1. Rafsegulbylgjur
KEN203 - Námskrár starfsgreina, námsefnisgerð & námsmat, vor 2015
Námsgagnagerð, verkefni 2
Halldór Berg Sæmundsson
Steingrímur B. Gunnarsson
Rafsegulbylgjur
5
• …þurfa ekki burðarefni til þess að ferðast í
• …eru þverbylgjur
Sveiflan er hornrétt á
útbreiðslustefnuna
• Útbreiðsluhraði rafsegulbylgja í tómarúmi:
• Táknaður í formúlum með bókstafnum „c“
• 299.792.458 m/sek.
• Til einföldunar u.þ.b.: 300.000.000 m/sek.
• …eða: 300.000 km/sek.
6. 3-1. Rafsegulbylgjur
KEN203 - Námskrár starfsgreina, námsefnisgerð & námsmat, vor 2015
Námsgagnagerð, verkefni 2
Halldór Berg Sæmundsson
Steingrímur B. Gunnarsson
Rafsegulbylgjur
6
3-1. Rafsegulbylgjur
• Rafsegulrófið (e. electromagnetic spectrum)
spannar allar hugsanlegar bylgjulengdir
rafsegulgeislunar
• Bylgjulengdin getur verið frá þúsundum
kílómetra niður í brot úr stærð atóms
7. 3-1. Rafsegulbylgjur
KEN203 - Námskrár starfsgreina, námsefnisgerð & námsmat, vor 2015
Námsgagnagerð, verkefni 2
Halldór Berg Sæmundsson
Steingrímur B. Gunnarsson
Rafsegulbylgjur
7
3-1. Rafsegulbylgjur
• Sýnilegt ljós er örlítill gluggi í rafsegul-
rófinu með tíðni frá u.þ.b.:
▫ 4·1014 Hz til 8·1014 Hz
▫ Bylgjulengd: 400 nm til 750 nm
8. 3-1. Rafsegulbylgjur
KEN203 - Námskrár starfsgreina, námsefnisgerð & námsmat, vor 2015
Námsgagnagerð, verkefni 2
Halldór Berg Sæmundsson
Steingrímur B. Gunnarsson
Rafsegulbylgjur
8
• Tíðnisviði rafsegulbylgnanna er skipt upp í flokka fyrir hverja tíföldun
• Eðli tíðnisviða / bylgjulengda að mörgu leiti ólík
▫ Lægri tíðnir / lengri bylgjulengdir
▫ Hærri tíðnir / styttri bylgjulengdir
10. 3-1. Rafsegulbylgjur
KEN203 - Námskrár starfsgreina, námsefnisgerð & námsmat, vor 2015
Námsgagnagerð, verkefni 2
Halldór Berg Sæmundsson
Steingrímur B. Gunnarsson
10
3-1. Rafsegulbylgjur
Gamma geislar, Röntgengeislar,
útfjólubláir geislar síast út í efri
lögum lofthjúpsins
Sýnilegt ljós augum manna,
nær til jarðar
Meirihluti innrauðs ljóss
síast í lofthjúpi jarðar
Rafsegulbylgjur á tíðnisviði
sem ná til jarðar
Lágtíðni rafsegul-
bylgjur ná ekki til
jarðar
300 GHz 300 KHz300 MHz
11. 3-1. Rafsegulbylgjur
KEN203 - Námskrár starfsgreina, námsefnisgerð & námsmat, vor 2015
Námsgagnagerð, verkefni 2
Halldór Berg Sæmundsson
Steingrímur B. Gunnarsson
11
Dæmi um notkun:Bylgjulengd:Skst.: Tíðnisvið: Dæmi um drægni:
Fjarskipti við kafbáta á litlu dýpi100 km – 10 kmVLF 3 KHz – 30 KHz Fylgir að mestu lögun jarðar
AM útvarps fjarskipti10 km – 1 kmLF 30 KHz – 300 KHz 3000 milur
AM útvarps fjarskipti1 km – 100 mMF 300 KHz – 3 MHz 5000 milur
Almenn fjarskipti100 m – 10 mHF 3 MHz – 30 MHz 12000 mílur
TV / FM og fjarskipti10 m – 1 mVHF 30 MHz – 300 MHz Bein lína
TV og farsímar1 m – 0,1 mUHF 300 MHz – 3 GHz Bein lína
Ratsjár / þráðlaust USB0,1 m – 10 mmSHF 3 GHz – 30 GHz Bein lína
Ratsjár og geimrannsóknir10 mm – 1 mmEHF 30 GHz – 300 GHz Bein lína
103 km – 100 kmULF 300 Hz – 3 KHz
104 km – 103 kmSLF 30 Hz – 300 Hz
10 5 – 104 kmELF 3 Hz – 30 Hz
1 mm – 0,1 mmTHF 300 GHz – 3000 GHz
Rafsegulbylgjur
12. 3-1. Rafsegulbylgjur
KEN203 - Námskrár starfsgreina, námsefnisgerð & námsmat, vor 2015
Námsgagnagerð, verkefni 2
Halldór Berg Sæmundsson
Steingrímur B. Gunnarsson
Rafsegulbylgjur
12
• Ljósbylgjurnar eru óskautaðar
• Rafsegulbylgjur eru skautaðar
14. 3-1. Rafsegulbylgjur
KEN203 - Námskrár starfsgreina, námsefnisgerð & námsmat, vor 2015
Námsgagnagerð, verkefni 2
Halldór Berg Sæmundsson
Steingrímur B. Gunnarsson
Ýmsar heimildir
• Björgvin Ingimarsson (2008). Rásakverið. Björgvin Ingimarsson. Reykjavík
• Eðlisfræði 1, Kafli 13 - Einföld bylgjuhreyfing. Kristján Þór Þorvaldsson 23. febrúar 2007.
Menntaskólinn í Reykjavík
• http://mr.kt.is/phys0607/files/pdf/e1n2_k13g.pdf
• Eðlisfræði fyrir framhaldsskóla, EÐL 203. Brynjólfur Eyjólfsson. 19. feb. 2008
• http://gogn.ma.is/edlis/EDL203/Efni/b%C3%B3k203n.pdf
• Rayteon Company (1980). Standard Engineering Reference Data. Rayteon Company. USA
• a
http://en.wikipedia.org/wiki/Radio_frequency
http://en.wikipedia.org/wiki/Electromagnetic_radiation#Wave.E2.80.93particle_duality
15. 3-1. Rafsegulbylgjur
KEN203 - Námskrár starfsgreina, námsefnisgerð & námsmat, vor 2015
Námsgagnagerð, verkefni 2
Halldór Berg Sæmundsson
Steingrímur B. Gunnarsson
Myndir heimildir:
• Mynd #5 og #6: http://www.stjornufraedi.is/alheimurinn/ljosid
• Mynd #7 og #8: http://www.stjornufraedi.is/alheimurinn/rafsegulrofid
Editor's Notes
Einkenni rafsegulbylgju er að hún er samfasa þverbylgjur í rafsviði og segulsviði og er sveiflan í hvoru sviði fyrir sig hornrétt á hina. Þetta veldur því að hraði bylgjunnar er háður raf- og seguleiginleikum þess umhverfis – efnis eða/og tómarúms, sem bylgjan fer um.
Þeir eiginleikar sem stjórna þessu kallast rafsvörunarstuðull ε og segulsvörunarstuðull μ. Í tómarúmi eru þessir stuðlar táknaðir með ε0 og μ0.
Sýnilegt ljós sem er örlítill gluggi í rafsegulrófinu með tíðni frá um það bil 4·1014 Hz til 8·1014 Hz eða bylgjulengd 400 nm upp í 750 nm. Rautt er með lægstu tíðnina og þar með lengstu bylgjulengdina og eins og myndin sýnir er fjólublátt með stystu bylgjulengdina og þar með hæstu tíðnina. Þá tekur við útfjólublá geislun sem er orkumeiri en sýnilegt ljós og er grundvöllur ljóstillífunar. Útfjólublátt ljós veldur sólbrúnku en getur líka orsakað húðkrabbamein ef of mikið er legið í sólbaði. Ofan við útfjólublátt taka við Röntgengeislar og enn ofar gammageislar. Uppruni þessara geisla í náttúrunni eru annars vegar orkustökk í atómum og hins vegar í kjörnum atómanna.
Sýnilegt ljós sem er örlítill gluggi í rafsegulrófinu með tíðni frá um það bil 4·1014 Hz til 8·1014 Hz eða bylgjulengd 400 nm upp í 750 nm. Rautt er með lægstu tíðnina og þar með lengstu bylgjulengdina og eins og myndin sýnir er fjólublátt með stystu bylgjulengdina og þar með hæstu tíðnina. Þá tekur við útfjólublá geislun sem er orkumeiri en sýnilegt ljós og er grundvöllur ljóstillífunar. Útfjólublátt ljós veldur sólbrúnku en getur líka orsakað húðkrabbamein ef of mikið er legið í sólbaði. Ofan við útfjólublátt taka við Röntgengeislar og enn ofar gammageislar. Uppruni þessara geisla í náttúrunni eru annars vegar orkustökk í atómum og hins vegar í kjörnum atómanna.