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PTT Group People
PTT may refer to: Businesses and organizations * PTT Public Company Limited, a Thai oil and gas company * Pashtun Tahafuz Tehrik, a human rights movement in Pakistan * Pennsylvania Tunnel and Terminal Railroad, the New York Penn Station tunnel owner * Pizza Time Theatre (now ''Chuck E. Cheese's''), an American entertainment restaurant chain * Police Tactical Team, Singapore * Postal, telegraph and telephone service, a type of government agency ** Posterijen, Telegrafie en Telefonie (Netherlands) ** Postes, télégraphes et téléphones (France) ** PTT (Switzerland) ** Posta Telgraf Teşkilatı (Turkey) * Prince's Trust Team, a British charitable youth programme Music * "PTT (Paint the Town)", a 2021 single by Loona * Pull Tiger Tail, a British indie band (2006–2009) Science * Partial thromboplastin time, a coagulation measure * Photothermal Therapy, a treatment * Photothermal time, in plants * 2β-propanoyl-3β-(4-tolyl)-tropane, a cocaine analogue * Polytrimethylene te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PTT Public Company Limited
PTT Public Company Limited or simply PTT () is a Thai Government-owned corporation, state-owned Stock Exchange of Thailand, SET-listed oil and natural gas, gas company. Formerly known as the Petroleum Authority of Thailand, it owns extensive submarine gas Pipeline transport, pipelines in the Gulf of Thailand, a network of Liquefied petroleum gas, LPG terminals throughout the kingdom, and it is involved in electricity generation, petrochemicals, petrochemical products, hydrocarbon exploration, oil and gas exploration and production, and gasoline retailing businesses. The company also owns Café Amazon, a popular coffee chain throughout South East Asia, which shops are often located next to PTT gas stations or inside malls. Affiliated companies include PTT Exploration and Production, PTT Global Chemical, PTT Asia Pacific Mining, and PTT Green Energy. On 15 December 2022, the world's largest institutional investor the Government Pension Fund of Norway, Norwegian Government Pension ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Partial Thromboplastin Time
The partial thromboplastin time (PTT), also known as the activated partial thromboplastin time (aPTT or APTT), is a blood test that characterizes coagulation of the blood. A historical name for this measure is the Kaolin-cephalin clotting time (KCCT), reflecting kaolin and cephalin as materials historically used in the test. Apart from detecting abnormalities in blood clotting, partial thromboplastin time is also used to monitor the treatment effect of heparin, a widely prescribed drug that reduces blood's tendency to clot. The PTT measures the overall speed at which blood clots form by means of two consecutive series of biochemical reactions known as the ''intrinsic'' pathway and common pathway of coagulation. The PTT indirectly measures action of the following coagulation factors: I (fibrinogen), II (prothrombin), V (proaccelerin), VIII (anti-hemophilic factor), X (Stuart–Prower factor), XI (plasma thromboplastin antecedent), and XII (Hageman factor). The PTT is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petronas Twin Towers
The Petronas Towers (), also known as the Petronas Twin Towers and colloquially the KLCC Twin Towers, are an interlinked pair of 88-storey supertall skyscrapers in Kuala Lumpur, Malaysia, standing at . From 1996 to 2004, they were the tallest buildings in the world until they were surpassed by the Taipei 101 building. The Petronas Towers remain the world's tallest twin skyscrapers, surpassing the original World Trade Center towers in New York City, and were the tallest buildings in Malaysia until 2021, when they were surpassed by Merdeka 118. The Petronas Towers are a major landmark of Kuala Lumpur, along with the nearby Kuala Lumpur Tower and Merdeka 118, and are visible in many places across the city. History and architecture The Petronas Towers' structural system is a tube in tube design, invented by Bangladeshi-American architect Fazlur Rahman Khan. Applying a tube-structure for extreme tall buildings is a common phenomenon. The 88-floor towers are constructed large ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pass-the-ticket
In computer security, pass the hash is a hacking technique that allows an attacker to authenticate to a remote server or service by using the underlying NTLM or LanMan hash of a user's password, instead of requiring the associated plaintext password as is normally the case. It replaces the need for stealing the plaintext password to gain access with stealing the hash. The attack exploits an implementation weakness in the authentication protocol, where password hashes remain static from session to session until the password is next changed. This technique can be performed against any server or service accepting LM or NTLM authentication, whether it runs on a machine with Windows, Unix, or any other operating system. Description On systems or services using NTLM authentication, users' passwords are never sent in cleartext over the wire. Instead, they are provided to the requesting system, like a domain controller, as a hash in a response to a challenge–response authentication s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pneumatic Tube
Pneumatic tubes (or capsule pipelines, also known as pneumatic tube transport or PTT) are systems that propel cylindrical containers through networks of Tubing (material), tubes by Gas compressor, compressed air or by partial vacuum. They are used for transporting solid objects, as opposed to conventional pipelines which transport fluids. In the late 19th and early 20th centuries, pneumatic tube networks gained acceptance in offices that needed to transport small, urgent packages, such as mail, other paperwork, or money, over relatively short distances, within a building or, at most, within a city. Some installations became quite complex, but have mostly been superseded. However, they have been further developed in the 21st century in places such as hospitals, to send blood samples and the like to clinical laboratory, clinical laboratories for analysis. A small number of pneumatic transportation systems were built for larger cargo, to compete with train and subway systems. However ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PTT Bulletin Board System
PTT Bulletin Board System (PTT, ) is the largest terminal-based bulletin board system (BBS) based in Taiwan. It was founded by Yi-Chin Tu and other students from the National Taiwan University in 1995 as Professional Technology Temple, and it is currently administered by the Electronic BBS Research Society as a non-commercial and open-source BBS. PTT has more than 1.5 million registered users, with over 150,000 users online during peak hours. The BBS has over 20,000 boards covering a multitude of topics, and more than 20,000 articles and 500,000 comments are posted every day. Background Using the TELNET protocol, PTT provides a quick, free of charge, and open online forum community. Currently, PTT has two branch sites, PTT2 () and PTT3 (). Of the three sites, the main site PTT is the largest Chinese language-based BBS in the world. The main site was founded on 9 September 1995 by Yi-Chin Tu ( ''Dù Yìjǐn''), then a sophomore in the Department of Computer Science and Informa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continuous Noninvasive Arterial Pressure
Continuous noninvasive arterial pressure (CNAP) is the method of measuring beat-to-beat artery, arterial blood pressure in real-time without any interruptions (continuously) and without cannulating the human body (noninvasive). Benefit of CNAP technology Continuous noninvasive arterial blood pressure measurement (CNAP) combines the advantages of the following two clinical “gold standards”: it measures blood pressure (BP) continuously in real-time like the Invasiveness of surgical procedures, invasive arterial catheter system (IBP) and it is non-invasive like the standard upper arm sphygmomanometer (NBP). Clinical requirements For the use in clinical environment a CNAP system must provide the following blood pressure information: # Absolute blood pressure obtained from a proximal artery (e.g. arteria brachialis) # Blood pressure changes in order to detect hemodynamic instabilities # Physiological rhythms that deliver insight into the hemodynamic control function and/or fluid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polytrimethylene Terephthalate
Polytrimethylene terephthalate (PTT), is a polyester synthesized and patented in 1941. It is produced by a method called Step-growth polymerization, condensation polymerization or transesterification. The two monomer units used in producing this polymer are: 1,3-propanediol and terephthalic acid or dimethyl terephthalate. Similar to polyethylene terephthalate, the PTT is used to make carpet fibers. PTT's value as a commercial polymer has improved due to more economical and efficient methods to produce 1,3-propanediol in the 1980s by Degussa, via acrolein, and Royal Dutch Shell, Shell via the hydroformylation of ethylene oxide. DuPont has successfully commercialized the production of this polymer via 1,3-propanediol obtained by fermentation. These developments may allow PTT to effectively compete against polybutylene terephthalate, PBT and polyethylene terephthalate, PET, two polyesters that have been far more successful than PTT to date. Production Similar to the ubiquitous poly( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photothermal Time
Photothermal time (PTT) is a product between growing degree-days (GDD) and day length (hours) for each day. PTT = GDD × DL It can be used to quantify environment, as well as the timing of developmental stages of plant Plants are the eukaryotes that form the Kingdom (biology), kingdom Plantae; they are predominantly Photosynthesis, photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with c ...s. References Product certification Measurement Ecology {{Ecology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photothermal Therapy
Photothermal therapy (PTT) refers to efforts to use electromagnetic radiation (most often in infrared wavelengths) for the treatment of various medical conditions, including cancer. This neurotherapy is an extension of photodynamic therapy, in which a photosensitizer is excited with specific band light. This activation brings the sensitizer to an excited state where it then releases vibrational energy (heat), which is what kills the targeted cells. Unlike photodynamic therapy, photothermal therapy does not require oxygen to interact with the target cells or tissues. Current studies also show that photothermal therapy is able to use longer wavelength light, which is less energetic and therefore less harmful to other cells and tissues. Nanoscale materials Most materials of interest currently being investigated for photothermal therapy are on the nanoscale. One of the key reasons behind this is the enhanced permeability and retention effect observed with particles in a certain size ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
