Here is a list of notable star systems located within the range of 70 to 75 light-years from Earth: 1. **Epsilon Eridani** - A K-type main-sequence star, it's one of the closest stars to the Solar System and has at least one confirmed exoplanet. 2. **Zeta Reticuli** - This system consists of two Sun-like stars and is known for its association with various UFO sightings and claims of extraterrestrial encounters.
Wiman's sextic refers to a specific algebraic curve known as the Wiman sextic, denoted often as \(W\). It is defined by a certain equation in projective space and is notable in the field of algebraic geometry for its interesting properties.
A vacuum-tube computer is an early type of computer that uses vacuum tubes to perform its calculations and operations. These computers were prominent from the 1940s to the early 1960s before being largely replaced by transistor-based systems. Here is a list of notable vacuum-tube computers: 1. **ENIAC (Electronic Numerical Integrator and Computer)** - Completed in 1945, it is often regarded as the first general-purpose electronic digital computer.
"Lists of transport" generally refers to compilations of various modes of transport, networks, or services in different categories. These lists can include various forms of transportation such as: 1. **Public Transport Systems**: Lists of major cities with their public transport options like buses, trains, subways, and trams. 2. **Transport Networks**: Lists of global shipping routes, airlines, or railways including statistics on their reach and frequency.
Longhua station is a station on Line 7 of the Shanghai Metro. It is located in the Longhua area of the Xuhui District in Shanghai, China. The station is known for its proximity to the Longhua Temple, which is one of the city's famous landmarks, as well as its location near the Longhua Martyrs' Cemetery. The station has become a convenient access point for both residents and visitors to the area.
Long-term Predicted Excitation Coding (LPEC) is a technique used in speech coding and other audio processing applications to efficiently represent and transmit voice signals. It is particularly relevant in contexts where bandwidth is limited, such as in telecommunications or streaming applications. ### Key Concepts of LPEC: 1. **Excitation Coding**: This refers to the method of representing the excitation signal that drives the vocal tract model in speech synthesis.
Lorraine J. Pitkin is not widely recognized in popular media or historical texts, so there may not be extensive publicly available information about her. It's possible that she could be a notable figure in a specific field, or perhaps a private individual. If you have specific context or details about Lorraine J.
In mathematics, "magnitude" refers to the size or quantity of a mathematical object. It's a general term that can apply in various contexts, often related to the following concepts: 1. **Vector Magnitude**: In vector mathematics, the magnitude of a vector is a measure of its length.
Makenzie Lystrup is an American aerospace engineer and notable figure in the field of space exploration. She is known for her work with NASA and has been involved in various projects related to robotic systems and space technology. Lystrup’s contributions include work on missions related to planetary exploration and the development of advanced space systems. Her expertise and leadership in the aerospace sector have made her a prominent advocate for STEM education and encouraging young people, especially women, to pursue careers in engineering and technology.
In this tutorial, we will use the Jena SPARQL hello world as a starting point. Tested on Apache Jena 4.10.0.
Basic query on rdf/vcard.ttl RDF Turtle data to find the person with full name "John Smith":Output:
sparql --data=rdf/vcard.ttl --query=<( printf '%s\n' 'SELECT ?x WHERE { ?x <http://www.w3.org/2001/vcard-rdf/3.0#FN> "John Smith" }')---------------------------------
| x |
=================================
| <http://somewhere/JohnSmith/> |
---------------------------------To avoid writing Output:
http://www.w3.org/2001/vcard-rdf/3.0# a billion times as queries grow larger, we can use the PREFIX syntax:sparql --data=rdf/vcard.ttl --query=<( printf '%s\n' '
PREFIX vc: <http://www.w3.org/2001/vcard-rdf/3.0#>
SELECT ?x
WHERE { ?x vc:FN "John Smith" }
')---------------------------------
| x |
=================================
| <http://somewhere/JohnSmith/> |
---------------------------------Bibliography:
- UniProt contains some amazing examples runnable on their servers: sparql.uniprot.org/.well-known/sparql-examples/
They have a tutorial at: jena.apache.org/tutorials/sparql.html
Once you've done the Apache Jena CLI tools setup we can query all users with Full Name (FN) "John Smith" directly fom the rdf/vcard.ttl Turtle RDF file with the rdf/vcard.rq SPARQL query:and that outputs:
sparql --data=rdf/vcard.ttl --query=rdf/vcard.rq---------------------------------
| x |
=================================
| <http://somewhere/JohnSmith/> |
--------------------------------- Pinned article: Introduction to the OurBigBook Project
Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
Intro to OurBigBook
. Source. We have two killer features:
- topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculusArticles of different users are sorted by upvote within each article page. This feature is a bit like:
- a Wikipedia where each user can have their own version of each article
- a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
Figure 1. Screenshot of the "Derivative" topic page. View it live at: ourbigbook.com/go/topic/derivativeVideo 2. OurBigBook Web topics demo. Source. - local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
Figure 3. Visual Studio Code extension installation.
Figure 4. Visual Studio Code extension tree navigation.
Figure 5. Web editor. You can also edit articles on the Web editor without installing anything locally.Video 3. Edit locally and publish demo. Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.Video 4. OurBigBook Visual Studio Code extension editing and navigation demo. Source. 
- Infinitely deep tables of contents:
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact