Block chain


  • Webster's Revised Unabridged Dictionary
    • Block chain (Mach) A chain in which the alternate links are broad blocks connected by thin side links pivoted to the ends of the blocks, used with sprocket wheels to transmit power, as in a bicycle.
    • ***


In literature:

For ten or fifteen years I had been dragging a heavy chain, with a huge block attached to it, cumbering my every motion.
"My Bondage and My Freedom" by Frederick Douglass
The next move was to set the six strong fox traps, each thoroughly smoked, and chained to a fifteen-pound block of wood.
"Rolf In The Woods" by Ernest Thompson Seton
This is a great, bare, rounded block of granite shooting up from the rest of the chain.
"A Popular Account of Dr. Livingstone's Expedition to the Zambesi and Its Tributaries And of the Discovery of the Lakes Shirwa and Nyassa (1858-1864)" by David Livingstone
Proceeding about five miles over uneven open forest ground, with isolated blocks of rock, we camped by a chain of rocky waterholes.
"Voyage Of H.M.S. Rattlesnake, Vol. 2 (of 2)" by John MacGillivray
Belmonti replied with threats of public imprisonment, the chain-gang, and the auctioneer's block.
"Strange True Stories of Louisiana" by George Washington Cable
Most of the chain gear, fouled in the blocks, ceased to work.
"The Man Who Laughs" by Victor Hugo
Jack rushed after it, knocking down chairs and tables, spilling the blocks out of their boxes, and tearing paper chains to bits.
"All About Johnnie Jones" by Carolyn Verhoeff
Are lengths of rope, or now more generally chain, into which the yard-arm brace-blocks are spliced.
"The Sailor's Word-Book" by William Henry Smyth
Finish with a border of loops, as follows: A double between blocks, (chain 3, a double in same place) twice.
"Handbook of Wool Knitting and Crochet" by Anonymous
By Nine, the Top-chain that flung the Main-yard, was shot away, with Geer and Geer-Blocks.
"Great Pirate Stories" by Various
After a time the craggy block of a head fell forward, and the body hung limp in the chains.
"The Saracen: Land of the Infidel" by Robert Shea
It was less like a treasure, though, than like a block of stone to which she was chained.
"The Saracen: The Holy War" by Robert Shea
Ships and trees were sunk, and chains fastened together, to block the passage against the enemy.
"The Serapion Brethren," by Ernst Theodor Wilhelm Hoffmann
He was chained to the block of stone.
"A Struggle for Rome, v. 3" by Felix Dahn
From under the cabin two huge curs came, their activity impeded by the blocks and chains they drew.
"The Prophet of the Great Smoky Mountains" by Charles Egbert Craddock
One day on looking out he saw a boy limping up and down, dragging a heavy block chained to his foot.
"William Blake" by Irene Langridge
In the centre of it was a large block, and a chain fastened to it.
"Auricular Confession and Popish Nunneries Volumes I. and II., Complete" by William Hogan
On the steep hillsides the pipes are anchored securely to the rock in concrete blocks reinforced with heavy iron chains.
"ASCE 1193: The Water-Works and Sewerage of Monterrey, N. L., Mexico" by George Robert Graham Conway
Accordingly he kept him in the solitary cell, and wearing a block and chain, most of the time.
"Recollections of Windsor Prison;" by John Reynolds
On the morning that our heroes took their walk, they found the streets and between the chains blocked with people.
"The Empire Makers" by Hume Nesbit

In news:

Creditors of the Cipriani restaurant empire announced plans to sell off all company assets to pay off its debts, a move that puts a handful of landmark New York restaurants in the high-end chain on the chopping, and auction, block.
Using a chain saw, chisels and Dremel tools, the Iceman molds solid blocks of ice, inserts plastic tubing and a bowl piece, and voilà: ice bong .
It is also rumored that at some of the "open" high school parties that occurred during the 1970s, enough beer pull-tops were removed from cans to make a chain longer than a city block.
A delivery truck going down an alley way, in the 500 block of Van Buren, clips a dumpster which sets off a chain reaction leading to a fire.
This is one of two dogs found chained and emaciated at a vacant house in the 41000 block of Paw Paw Road in Paw Paw Township.
The National Association of Chain Drug Stores applauded a federal court ruling that upheld an injunction blocking the implementation of cuts to Medi- Cal, California's Medicaid program.
Building blocks containing clickable moieties are instrumental in constructing side-chain modified peptides , interside-chain peptide chimera, peptide small molecule conjugates, and cyclic peptides .
City Councilman Ed Reyes, who represents the area, proposed a City Council ordinance that would block large retail chain stores from opening in Chinatown.
After months of blocking approval to build a Chick-fil-A in the first ward, Chicago alderman Joe Moreno says the fast-food chain can now construct a restaurant in the Logan Square neighborhood.
MOUNT LAUREL — A $1,100 chain saw was reported stolen from an unlocked porch on the 3000 block of Fostertown Road overnight Wednesday, police said Saturday.
Annamarie Crescini had just finished lunch three blocks from her Hayward home last July when someone ripped a beloved possession from her neck -- a gold chain with a jade pendant she had treasured for 20 years.
The straightforward fish spot is a swankier alternative to the fast-food joints and chain restaurants that pepper the outdoor mall a block from the AA arena.
Workers just quietly removed the chain-link fence erected to contain the construction on the 100 Block of Gay Street.
Henry Bloch once again is appearing in advertising, but not for the H&R Block tax preparation chain he founded.
GM Small Block V8 Timing Chain Cover.

In science:

Also, whether or not a chain in an augmented tableau is blocked does not change when other (unblocked) chains are moved, which proves lemma 2.3.1.
Some bijective correspondences involving domino tableaux
The cipher unit is composed by a pipelined AES (300,000 gates) in CBC (Cipher Block Chaining) mode.
Hardware Engines for Bus Encryption: A Survey of Existing Techniques
But the ciphering block chain corresponds to a cache block, thus allowing random access to external memory (each cache block may be ciphered in CBC mode separately).
Hardware Engines for Bus Encryption: A Survey of Existing Techniques
Since the basic building blocks for derived algebraic geometry are simplicial rings or chain algebras, the correct analogue of quasi-coherent sheaves has to involve complexes.
Notes characterising higher and derived stacks concretely
Abstract —We present a new quasigroup based block encryption system with and without cipher-block-chaining.
Efficient Quasigroup Block Cipher for Sensor Networks
To improve the performance of quasigroup block ciphers in the Approximate Entropy, Serial 1 and Serial 2 tests, we extended algorithm 1 to include cipher block chaining (CBC).
Efficient Quasigroup Block Cipher for Sensor Networks
We will say that B ‘blocks’ the chains which contain one of its s-neighbours for some s ≤ q/2.
Optimal pooling designs with error detection
Therefore a chain cannot be blocked by more than one element of ˆD.
Optimal pooling designs with error detection
B can contain no element of ˆD other than B and hence we can associate with B the cost h(B ) which is the proportion of chains blocked by B .
Optimal pooling designs with error detection
Since chains cannot be multiply blocked, the sum of the costs of the elements of ˆD cannot exceed one.
Optimal pooling designs with error detection
Each chain which contains an s-neighbour of B , for some s ≤ (q+1)/2, can contain no element of ˆD other than B and we say that these chains are blocked by B .
Optimal pooling designs with error detection
Systems of chemically linked polymer chains of different species like block copolymers are also of considerable experimental and technical interest.
Copolymer Networks and Stars: Scaling Exponents
The orbit of a chain keeps track of what type of block is split into what types of pieces at each rank in a chain.
Lexicographic shellability for balanced complexes
First we encode the orbit of a chain as a tree whose nodes are the partition blocks that occur in the chain.
Lexicographic shellability for balanced complexes
The root is the single block appearing as ˆ0 in any poset chain.
Lexicographic shellability for balanced complexes