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TDR And TDT Soil Moisture Sensor
TDR may refer to: Science and medicine * Telecommunications for Disaster Relief, a proposed standard * Time-domain reflectometry, a measuring method ** Time-domain reflectometer, an instrument used for time-domain reflectometry * Radiolabeled thymidine (TdR) * Totally drug-resistant, the ability of a microbe to resist the effects of all known drugs Groups and organizations * The Designers Republic, a former graphic design studio in England * Tony D'Alberto Racing, an Australian V8 Supercar motor racing team Other * ''TDR'' (journal), ''The Drama Review'', an academic journal *Tokyo Disney Resort, Japan * Interstate TDR, WWII US Navy aerial drone * Timeout Detection and Recovery, a feature in the Windows operating system that allows it to recover from video driver errors * Transferable development rights, a method for controlling land use * Troubled debt restructuring, a debt restructuring process * Total dependency ratio, ratio of dependents to workers * ''Total DramaRama'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications For Disaster Relief
Telecommunications for Disaster Relief (TDR) is a proposal by the International Telecommunication Union to establish worldwide standards of interoperability and availability of emergency communications. The notion of establishing such standards was spurred in part by the 2004 Indian Ocean earthquake and tsunami which devastated Indonesia. The ITU assigned telephone country code is +888 for TDR, administered by the United Nations Office for the Coordination of Humanitarian Affairs The United Nations Office for the Coordination of Humanitarian Affairs (OCHA) is a United Nations (UN) body established in December 1991 by the General Assembly to strengthen the international response to complex emergencies and natural disaster .... Numbers were assigned for the duration of a particular relief activity only, and could be reused for a future event. However, country code +888 was withdrawn from service and is now officially marked as “returned to spare.” References External linksI ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time-domain Reflectometry
In mathematics and signal processing, the time domain is a representation of how a signal, function, or data set varies with time. It is used for the analysis of mathematical functions, physical signals or time series of economic or environmental data. In the time domain, the independent variable is time, and the dependent variable is the value of the signal. This contrasts with the frequency domain, where the signal is represented by its constituent frequencies. For continuous-time signals, the value of the signal is defined for all real numbers representing time. For discrete-time signals, the value is known at discrete, often equally-spaced, time intervals. It is commonly visualized using a graph where the x-axis represents time and the y-axis represents the signal's value. An oscilloscope is a common tool used to visualize real-world signals in the time domain. Though most precisely referring to time in physics, the term ''time domain'' may occasionally informally refer to p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time-domain Reflectometer
A time-domain reflectometer (TDR) is an electronic instrument used to determine the characteristics of electrical lines by observing reflected pulses. It can be used to characterize and locate faults in metallic cables (for example, twisted pair wire or coaxial cable), and to locate discontinuities in a connector, printed circuit board, or any other electrical path. Description A TDR measures reflections along a conductor. In order to measure those reflections, the TDR will transmit an incident signal onto the conductor and listen for its reflections. If the conductor is of a uniform impedance and is properly terminated, then there will be no reflections and the remaining incident signal will be absorbed at the far-end by the termination. Instead, if there are impedance variations, then some of the incident signal will be reflected back to the source. A TDR is similar in principle to radar. The impedance of the discontinuity can be determined from the amplitude of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thymidine
Thymidine (nucleoside#List of nucleosides and corresponding nucleobases, symbol dT or dThd), also known as deoxythymidine, deoxyribosylthymine, or thymine deoxyriboside, is a pyrimidine nucleoside, deoxynucleoside. Deoxythymidine is the DNA nucleoside T, which pairs with deoxyadenosine (A) in double-stranded DNA. In cell biology it is used to cell synchronization, synchronize the cells in G1/early S phase. The prefix deoxy- is often left out since there are no precursors of thymine nucleotides involved in RNA synthesis. Before the boom in thymidine use caused by the need for thymidine in the production of the antiretroviral drug Zidovudine, azidothymidine (AZT), much of the world's thymidine production came from herring sperm. Thymidine occurs almost exclusively in DNA but it also occurs in the T arm, T-loop of tRNA. Structure and properties In its composition, deoxythymidine is a nucleoside composed of deoxyribose (a pentose sugar) joined to the pyrimidine base thymine. De ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Totally Drug-resistant
Antimicrobial resistance (AMR or AR) occurs when microbes evolve mechanisms that protect them from antimicrobials, which are drugs used to treat infections. This resistance affects all classes of microbes, including bacteria (antibiotic resistance), viruses (antiviral resistance), parasites (antiparasitic resistance), and fungi (antifungal resistance). Together, these adaptations fall under the AMR umbrella, posing significant challenges to healthcare worldwide. Misuse and improper management of antimicrobials are primary drivers of this resistance, though it can also occur naturally through genetic mutations and the spread of resistant genes. Antibiotic resistance, a significant AMR subset, enables bacteria to survive antibiotic treatment, complicating infection management and treatment options. Resistance arises through spontaneous mutation, horizontal gene transfer, and increased selective pressure from antibiotic overuse, both in medicine and agriculture, which accelerates r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
