Trains and locomotives

• E1 Series Shinkansen
  E1 Series Shinkansen
  The is a Shinkansen high-speed train type operated by East Japan Railway Company in Japan since 1994. They were the first double-deck trains built for Japan's Shinkansen...
  
  , a Japanese high-speed train
• Bavarian E I
  Bavarian E I
  The Bavarian Class E I steam locomotives operated by the Royal Bavarian State Railways encompassed four different variants of saturated steam, goods train locomotive with a 2-8-0 wheel arrangement.- Standard variant, older type :...
  
  , a German steam engines locomotive model
• EMC E1, a diesel locomotive
• LB&SCR E1 class
  LB&SCR E1 class
  The London, Brighton and South Coast Railway E1 Class were 0-6-0T steam locomotives designed by William Stroudley in 1874 for short-distance goods and piloting duties. They were originally classified E, and generally known as "E-tanks"; They were reclassified E1 in the time of D. E...
  
  , a 1874 British 0-6-0 steam locomotive
• NCC Class E1, a Northern Counties Committee Irish steam locomotive
• NER Class E1
  NER Class E1
  The North Eastern Railway Class E1, classified as Class J72 by the London and North Eastern Railway is a class of small 0-6-0T steam locomotives designed by Wilson Worsdell for shunting. They had inside cylinders and Stephenson valve gear....
  
  , a 1898 class of small 0-6-0T steam locomotive
• PRR E1
  PRR E1
  Three experimental Atlantic 4-4-2 locomotives built in 1899 to compete with the Reading Railroad on the Philadelphia, Pennsylvania to Atlantic City, New Jersey high-speed seashore passenger train service. These engines were designed with cab-center or camelback locomotives, wide fireboxes, and 80"...
  
  , an American PRR 4-4-2 steam locomotive
• SP&S Class E-1
  SP&S Class E-1
  Spokane Portland and Seattle Railway’s E-1 class was a class of three 4-8-4 locomotives built by the Baldwin Locomotive Works in 1938-Preservation:...
  
  , a 1934 steam locomotives class
• WLWR Class E1, a Waterford, Limerick and Western Railway Irish steam locomotive

Aircraft

• E1 Gavilán, an unmanned electrical-surveillance airplane of design and manufacturing by the Mexican firm Hydra Technologies of Mexico
• E-1 Tracer, an American airborne early warning aircraft
• Fokker E.I
  Fokker E.I
  |-See also:-References:NotesBibliography* Boyne, Walter J. The Smithsonian Book of Flight for Young People. Washington, DC: Smithsonian Institution, 1988. ISBN 0-689-31422-1....
  
   (or E.1), a German fighter aircraft
• Junkers E.I, the Idflieg designation for the 1916 Junkers J1 aircraft
• LVG E.I
  LVG E.I
  -Bibliography:* William Green and Gordon Swanborough. The Complete Book of Fighters. Colour Library Direct, Godalming, UK: 1994. ISBN 1-85833-777-1....
  
  , a 1915 German two-seat monoplane
• Standard E-1
  Standard E-1
  |-See also:-References:* Donald, David, ed. Encyclopedia of World Aircraft, p. 854, "Standard aircraft". Etobicoke, Ontario: Prospero Books, 1997.* -External links:*...
  
  , a 1917 early American Army fighter aircraft

Submarines

• HMS E1
  HMS E1
  HMS E1 was a British E class submarine built by Chatham Dockyard and cost £101,700. E1 was laid down on 14 February 1911. She was launched on 9 November 1912 and was commissioned on 6 May 1913...
  
  , an E-class submarine of the Royal Navy
• USS E-1 (SS-24)
  USS E-1 (SS-24)
  USS E-1 was an E-class submarine of the United States Navy. Originally named Skipjack, the boat was launched on 27 May 1911 by the Fore River Shipyard, Quincy, Massachusetts; sponsored by Mrs. D. R. Battles; renamed E-1 on 17 November 1911; and commissioned on 14 February 1912, Lieutenant Chester W...
  
  , a 1917 E-class submarine of the United States Navy

Roads

• E1 (Zimbabwe), a Transport in Zimbabwe
• European route E01
  European route E01
  The European route E 01 is a series of roads in Europe, part of the United Nations International E-road network, running from Larne, Northern Ireland to Seville, Spain. There is a sea crossing between Rosslare Harbour, in Ireland, and Ferrol, but no ferry service...
  
  , from Northern Ireland to Spain
• European walking route E1
  European walking route E1
  The E1 European long distance path, or just E1 path, is one of the European long-distance paths with a total length of some 4,960 km. It begins in Sweden, and crosses the Kattegat between Sweden and Denmark by ferry. It passes through Denmark, Germany and Switzerland to finish at Scapoli, Italy...
  
  , a long-distance hiking route from Sweden to Italy
• London Buses route E1
  London Buses route E1
  London Buses route E1 is a Transport for London contracted bus route in London, England. The service is currently contracted to First Centrewest.-History:...
  
  , a transport for London contracted bus route
• E1, the North–South Expressway Northern Route in Malaysia
• E01 highway (Sri Lanka), an expressway in Sri Lanka

Science and mathematics

• Exponential integral,
  Exponential integral
  In mathematics, the exponential integral is a special function defined on the complex plane given the symbol Ei.-Definitions:For real, nonzero values of x, the exponential integral Ei can be defined as...
  
  , mathematical function

Biochemistry

• E1 mechanism, in organic chemistry
• Ubiquitin-activating enzyme
  Ubiquitin-activating enzyme
  Ubiquitin-activating enzymes, also known as E1 enzymes, catalyze the first step in the ubiquitination reaction, which targets a protein for degradation via a proteasome. This covalent attachment of ubiquitin or ubiquitin-like proteins to targeted proteins is a major mechanism for regulating protein...
  
  , a protein component of proteasome-mediated protein degradation
• E1 regulatory sequence for the insulin gene
• Estrone
  Estrone
  Estrone is an estrogenic hormone secreted by the ovary as well as adipose tissue.Estrone is one of several natural estrogens, which also include estriol and estradiol...
  
  , a hormone
• The first part of the pyruvate dehydrogenase
  Pyruvate dehydrogenase
  Pyruvate dehydrogenase complex is a complex of three enzymes that transform pyruvate into acetyl-CoA by a process called pyruvate decarboxylation. Acetyl-CoA may then be used in the citric acid cycle to carry out cellular respiration, and this complex links the glycolysis metabolic pathway to the...
  
   enzyme complex
• Haplogroup E1

Medicine

• E01, Iodine-deficiency-related thyroid disorders and allied conditions ICD-10 Chapter IV: Endocrine, nutritional and metabolic diseases
  ICD-10 Chapter IV: Endocrine, nutritional and metabolic diseases
  This is an overview about the chapter IV of the International Statistical Classification of Diseases and Related Health Problems 10th Revision...
  
   code

Technology

• E-carrier
  E-carrier
  In digital telecommunications, where a single physical wire pair can be used to carry many simultaneous voice conversations by time-division multiplexing, worldwide standards have been created and deployed...
  
   level 1, or E1 carrier. E-carrier is a European telecommunications standard. The level 1 E-carrier is a wire technology used by telecommunication operators with 2 Mbit/s data rate. a E1 carrier consists of 32 channels. usually, one or two of which are used for control purposes.

Brands, models and companies

• E1 Corp.
  E1 Corp.
  E1 has specialized in providing liquefied petroleum gas in Korea, currently covering 50% of LPG import demand nationwide.E1 imports LPG from oil-producing countries and store it at Yosu and Incheon Terminals...
  
  , a Korean chemical and oil company, member of the LS Group
• Honda E1
  Honda E1
  The E-series was a collection of successive humanoid robots created by the Honda Motor Company between the years of 1986 and 1993. These robots were only experimental, but later evolved into the Honda P series, with Honda eventually amassing the knowledge and experience necessary to create Honda's...
  
  , a predecessor of the ASIMO humanoid robot
• Mazda E engine#E1, a piston engine
• Olympus E-1
  Olympus E-1
  The Olympus E-1, introduced in 2003, was the first DSLR system camera designed from the ground up for digital photography. This contrasts with its contemporaries which offered systems based on reused parts from previous 135 film systems, modified to fit with a sensor size of APS-C.-Features:The E-1...
  
  , a digital single-lens reflex camera
• Entertainment One
  Entertainment One
  Entertainment One Ltd is a leading international entertainment business operating in the United States, Canada, the UK, Ireland, France, the Netherlands, Belgium, Australia and New Zealand...
  
  , an international media company
• Renesas E1 on-chip debugging (emulation) module for RX, V850 and RL78

Geography

• E1 (Jerusalem)
  E1 (Jerusalem)
  E1, also named "Mevasseret Adumim" , is a mostly empty area of in Ma'ale Adumim. It is bordered by the French Hill neighborhood of Jerusalem to the west, Abu Dis to the southwest, Kedar to the south, Ma'ale Adumim to the east, and Almon to the north...
  
  , a disputed area in Ma'ale Adumim, east of Jerusalem
• The E1 postcode district in London

Other

• E-1, the pay grade for the of Private, Airman Basic, and Seaman Recruit in the United States Military
• The E1 grade of difficulty in rock climbing
• E-1 (rocket engine)
  E-1 (rocket engine)
  Rocketdyne's E-1 was a liquid propellant rocket engine originally built as a backup design for the Titan I missile. While it was being developed, Heinz-Hermann Koelle at the Army Ballistic Missile Agency selected it as the primary engine for the rocket that would emerge as the Saturn I...