Before signalling will work, the sender and receiver must agree on the signalling parameters:

Before the present in-cab regulations came in, British Rail experimented with 140 mph running by introducing a fifth, flashing green signalling aspect on track between New England North and Stoke Tunnel.

Before Loewi's experiments, it was unclear whether signalling across the synapse was bioelectrical or chemical.

Before his departure, a group of his friends, the Reverend Stidger among them, had given him a luncheon, and Stidger had seen advance sheets of Elmer Gantry.

Before his departure from the city of Split, he had made over to the Templars the Castle of Klis, a strategic point in the hinterland of Split which controlled the approaches to the town.

Before his departure for Rome, his friends had applied to the Venetian senate for a pension, to enable him to pursue his studies without embarrassment.

Before their departure, the ship of the commander Belisarius was anchored in front of the Imperial palace, and the Patriarch offered prayers for the success of the enterprise.

Before the departure of British colonial rule and the subsequent independence of Pakistan, the population of the city included Hindus and Sikhs, but the community is still present numbering around 250, 000 residents.

Before his departure, various honours were conferred on him, including the freedom of the city of Geneva.

Agnes Mongan has written of the portrait drawings: Before his departure in the fall of 1806 from Paris for Rome, the familiar characteristics of his drawing style were well established, the delicate yet firm contour, the definite yet discreet distortions of form, the almost uncanny capacity to seize a likeness in the precise yet lively delineation of features. The preferred materials were also already established: the sharply pointed graphite pencil on a smooth white paper.

Before his departure, Kilmer had contracted with publishers to write a book about the war, deciding upon the title Here and There with the Fighting Sixty-Ninth.

Before his departure for Rome in December 1857, Bizet's prize cantata was performed at the Académie to an enthusiastic reception.

Before the Governor's departure, he and the colonists had agreed that a message would be carved into a tree if they had moved and would include an image of a Maltese Cross if the decision was made by force.

Before their departure, Evelyn meets Rafe and reveals that she is pregnant with Danny's child, although she doesn't want Danny to know so he can focus on the upcoming mission.

Before his departure, he asked the widowed Queen Olga to become regent until Constantine's return.

Before departure the engineer informed the pilot of the problem and confirmed that the tanks would have to be verified with a floatstick.

Before his departure for Thonburi, the King conferred honours and distinction on those who had contributed to success of his campaign.

Before his departure, Park gave to Isaaco, a Mandingo guide who had been with him thus far, letters to take back to Gambia for transmission to Britain.

Before their departure from the rendezvous in the forest, many had seen rows of bodies already hanging from the branches of nearby trees.

Before his departure, Guan Yu made a military pledge that he would not spare Cao Cao's life on account of his past relationship with the warlord.

Before her departure, Isidoro gave her a small statue to protect her.

Before Andros ' departure for England, the dominion was effectively dissolved, with colonial governments replaced by that of the dominion returning to power.

Before her departure she was affiliated with The Hurricane and Rosey and nicknamed " Super Stacy.

" Before he had settled into his new printing office on Gay Street, Brownlow had become embroiled in a war of words with Knoxville Register editor John Miller McKee that lasted until McKee's departure in 1855.

" Before departure Pierre is described as going back and forth in deciding whether he is going on the fishing trip or not.

Before departure, two mechanical keys of ten bits each were inserted into the shown reader.

Before her departure, she had already begun to show signs of dark side tendencies that rose from the loss of Anakin.

Before leaving again, he told the anxious wives of the company men and the curious Newportians that if they heard the whistle, all would be " gone to hell.

Before the introduction of the whistle, referees indicated their decisions by waving a handkerchief.

Before they continue their vacation, Lilith bloodies Frasier's nose off-screen with the train whistle after he says " home to Dagmar " to the cab driver Antonio ( Tony Shalhoub ).

Before they turn red, Sven can whistle to them to cheer them up.

Before merging them into a common profile it is well to remember that their separate careers were extraordinary.

His first book, Before The Brave ( 1936 ), is a collection of poems that are almost all Communistic, but after publication of this book he rejected Communism, and advocated a pacifistic anarchy, though retaining his revolutionary idiom.

Before deciding where it is going, however, a college or university must know where it is.

Before it cycles on again, humidity can build up and make you uncomfortable even though the temperature is still low.

Before adjournment Monday afternoon, the Senate is expected to approve a study of the number of legislators allotted to rural and urban areas to determine what adjustments should be made.

Before dropping the anchor, the fishing process is reversed, and the anchor is dropped from the end of the cathead.

Before the mention of Alemanni in the time of Caracalla, you would search in vain for Alemanni in the moderately detailed geography of southern Germany in Claudius Ptolemy, written in Greek in the mid-2nd century ; it is likely that at that time, the people who later used that name were known by other designations.

Before the actual process of cell death is precipitated by enzymes, apoptotic signals must cause regulatory proteins to initiate the apoptosis pathway.

Before the 16th century, harvest was the term usually used to refer to the season, as it is common in other West Germanic languages to this day ( cf.

Before the end of this World Cup Glenn McGrath stated that Lara is the greatest batsman that he has ever bowled to.

Before the formation of Malaysian Federation, the Philippines claimed that the Malaysian state of Sabah in north Borneo is within their territorial rights based on historical facts of the Sultanate of Sulu's leasing agreement with the North Borneo Company, is presently an unresolved claim against Malaysia.

Before this discovery, it is widely believed that bricks appeared about 3000 years ago in the Western Zhou dynasty since the earliest bricks were found in Western Zhou ruins.

In Earnest J. Gaines ' novel, " A Lesson Before Dying " Bayonne, Louisiana is the name of a Cajun town central to the book.

Before the renovations the entire building was all male, but now every house is co-ed.

Before 1873, England had two parallel court systems: courts of " law " that could only award money damages and recognized only the legal owner of property, and courts of " equity " ( courts of chancery ) that could issue injunctive relief ( that is, a court order to a party to do something, give something to someone, or stop doing something ) and recognized trusts of property.

Before the Norman conquest in 1066, justice was administered primarily by what is today known as the county courts ( the modern " counties " were referred to as " Shires " in pre-Norman times ), presided by the diocesan bishop and the sheriff, exercising both ecclesiastical and civil jurisdiction.

Before 1938, the federal courts, like almost all other common law courts, decided the law on any issue where the relevant legislature ( either the U. S. Congress or state legislature, depending on the issue ), had not acted, by looking to courts in the same system, that is, other federal courts, even on issues of state law, and even where there was no express grant of authority from Congress or the Constitution.

Before the 1970s, community colleges in the United States were more commonly referred to as junior colleges, and that term is still used at some institutions.

This act is commonly criticized by modern cartoonists including Watterson and Pearls Before Swines Stephan Pastis.

Before there was an official standard for C, many users and implementors relied on an informal specification contained in a book by Ritchie and Brian Kernighan ; that version is generally referred to as " K & R " C. In 1989 the American National Standards Institute published a standard for C ( generally called " ANSI C " or " C89 ").

BCE is the abbreviation for Before the Common / Current / Christian Era ( an alternative to Before Christ, abbreviated BC ).