نتایج جستجو برای: plc s7 1200
تعداد نتایج: 18910 فیلتر نتایج به سال:
بادام با نام علمی Prunus dulcis Miller [D.A. Webb] دارای خودناسازگاری گامتوفیتیک است. برای کشت وسیع و تجاری بادام استفاده از ارقام خودسازگار و کشت حداقل دو رقم سازگار با هم الزامی است. تعیین خودناسازگاری در بادام روشهای متعددی دارد که جدیدترین آنها استفاده از آغازگرهای اختصاصی به روش PCR است. در این آزمایش از جفت آغازگر اختصاصی AS1II و AmyC5R برای تعیین آللهای خودناسازگاری در بعضی ارقام ایرانی...
Xylem cavitation resistance has profound implications for plant physiology and ecology. This process is characterized by a 'vulnerability curve' (VC) showing the variation of the percentage of cavitation as a function of xylem pressure potential. The shape of this VC varies from 'sigmoidal' to 'exponential'. This review provides a panorama of the techniques that have been used to generate such ...
Programmable Logic Controllers (PLCs) are the point of interaction between cyber and physical world, thus have been target previous cyber-attacks that caused disruption. To understand effectiveness state-of-the-art security mechanisms built into these devices, this paper presents an in-depth analysis performed on Siemens PLC environment, particularly communication protocol known as S7CommPlus. ...
Rice black-streaked dwarf virus (RBSDV) causes maize rough dwarf disease or rice black-streaked dwarf disease and can lead to severe yield losses in maize and rice. To analyse RBSDV evolution, codon usage bias and genetic structure were investigated in 111 maize and rice RBSDV isolates from eight geographic locations in 2013 and 2014. The linear dsRNA S7 is A+U rich, with overall codon usage bi...
This paper emphasize on controlling the process variable parameters such as level and flow with real time implementation of gate control of hydroelectric power plant using Programmable Logic Controller. In this work, a programmable logic controller is used as an industrial computer playing the role of a control device and push buttons, level and flow sensors provide incoming signals to the cont...
Supporting Figure 1. Kinase inhibitory activity of compound 18 . S2 Supporting Figure 2. Activity of compound 18 in tumor models S3 Synthesis and Characterization of Compounds 7h, 11–17, and 19–24 S4 Biopharmaceutical Profiling S7 Rat Pharmacokinetics S7 Cell Viability Assay S7 Murine P388/D1 Leukemia Model S7 NCI-H460 Xenograft S7 X-Ray Crystallography S8 Molecular Modeling S8 Supplementary Re...
The performance optimization of induction motor speed control system is studied and self-tuning PID controller based on diagonal recurrent neural network (DRNN) is presented in this paper. Neural network control does not require the precise mathematical model of the system, and it only needs to train neural network online or offline, then use the training results to design the control system. I...
SCADA traffic between the Human Machine Interface (HMI) and the Programmable Logic Controller (PLC) is known to be highly periodic. However, it is sometimes multiplexed, due to asynchronous scheduling. Modeling the network traffic patterns of multiplexed SCADA streams using Deterministic Finite Automata (DFA) for anomaly detection typically produces a very large DFA, and a high false-alarm rate...
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