cyber security of substation control and diagnostic systems

... Development of wireless control and automation systems Goh Han Leong (B.Eng., National University of Singapore) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF ELECTRICAL AND ... rental and store check-out There are two major concerns in mobile transactions, ease of use and security [1] examine the digital right management issue, while [2] and [3] propose methods and algorithm ... distributed control systems However, the proprietary nature of SCADA limits its widespread use in the industry Deployment of a SCADA system is time-consuming and usually involves a number of engineers,...

Ngày tải lên: 30/09/2015, 06:31

... categorized in terms of duration and type of inundation We proposed levels based on duration of inundation (shortterm, long-term, persistent and non-inundation) and types of inundation (rainy, ... Short-term and Heavy rainy, SDG: Short-term and Drainage, LSD: Long-term and Stagnant, LHT: Long-term and Heavy rainy, LMK: Long-term and Monsoon flood, PDL: Persistent and Drainage, PHS: Persistent and ... latrine and without hand washing (with and without soap) before eating and after defecation However, control variables for mother’s illiteracy and household income strongly attenuated most of these...

Ngày tải lên: 05/09/2013, 10:15

... flowing across a vulnerable environment, many of the available operating systems for phones and handheld devices offer little or no security Most security violations occur within the institution ... business performance and process requirements 13 Develop delivery plan 14 Build a proof of concept to test all systems functions and requirements Test APIs and architectural designs of the applications ... challenges, and utilize the products and services offered Financial institutions must drive to enhance the systems delivery to create layers of an open system environment Those who will use standard...

Ngày tải lên: 26/10/2013, 16:15

... accept the level of security that Frame-Relay and ATM offer as layer VPNs, however they might have concerns about the level of security that an MPLS based VPN offers The goal of this paper is ... increasing the number of VCs to a total of n*(n-1)/2 where n = number of sites That increase in the number of VCs required also greatly increases the complexity of the network and the routing protocol ... are handled in Frame-Relay and ATM based network Therefore it is our conclusion that Cisco MPLS-VPNs can offer the same level of security as Frame Relay or ATM to both business customers and service...

Ngày tải lên: 21/12/2013, 19:15

Ngày tải lên: 16/02/2014, 19:02

... process controls and build up to process control of retorting and aseptic processing, strategies to correct deviant thermal processes, optimization of thermal processes, and control and modeling of ... this delay on the controller response, a temperature probe for control is generally placed just at the exit of the heater 2.5 Modes of control 2.5.1 On/off control The on/off control algorithm ... integral, and derivative control For continuous systems and for a lot of parameters in a batch system, the most popular type of controller is a proportional, integral, and derivative (PID) controller...

Ngày tải lên: 21/02/2014, 22:20

Ngày tải lên: 07/03/2014, 10:20

... approach when I taught Operating Systems at Wellesley College I used the first edition of The Little Book of Semaphores along with one of the standard textbooks, and I taught Synchronization as ... misleading because increment and decrement neglect to mention the possibility of blocking and waking, and semaphores are often used in ways that have nothing to with signal and wait If you insist on ... immediately Either way, the order of a1 and b1 is guaranteed 12 Basic synchronization patterns This use of semaphores is the basis of the names signal and wait, and in this case the names are conveniently...

Ngày tải lên: 15/03/2014, 11:20

... and 300 controls) was enough to reach a power of 75% at a p = 0.05 (for a power of 80%, a total of 225 patients and 338 controls should be required at a p = 0.05, and 336 patients and 504 controls ... deletion (ACE and 5-HTT), and SNPs (AGT, AT1R, and 5HT2A) The genomic DNA of patients and controls was polymerase chain reaction (PCR) amplified (32 cycles) Coto et al Journal of Translational ... effect of these gene polymorphisms on onset age and the extent of the hypertrophy Methods Patients and controls This study was part of a research project designated to analyse the association of...

Ngày tải lên: 18/06/2014, 16:20

... patients of thirteen arm-hand-training systems A short description is given for each of these systems The number of clinical trials will be mentioned for each system, as well as the kind of trial and ... training of arm-hand function after stroke For upper limb rehabilitation after stroke, two categories of rehabilitation systems will be described: robotic training systems and sensor-based training systems ... [65] and one RCT [67] In total 37 patients were involved ARMin [150-153] is a semi-exoskeleton for movement in shoulder (3DOF), elbow (1DOF), forearm (1DOF) and wrist (1DOF) Position, force and...

Ngày tải lên: 19/06/2014, 08:20

... first part of the frame is related to a contention phase and consists of several pairs of minislots Each minislot is divided into the transmission of an RTS and a CTS signal The second part of the ... 11times increase of bandwidth In the 802.11b protocol, the same spreading gain of 11 is applied against out-ofband interferers However, PBOA assumes only a single band transmission and is thus naturally ... will go to backoff and turn into a potential receiving node until the end of the frame with the probability of - p In Figure T 1, T and T3 are not successful during the first minislot of the contention...

Ngày tải lên: 21/06/2014, 03:20

... and Kotez SEWER SYSTEM MANAGEMENT Figure Main sewer systems Figure Subsystems of the central sewer system of Belgrade 15 16 D LJUBISAVLJEVIC AND A RANDJELOVIC Ostruznicki and Bolecki sewer systems ... probability and frequency of emergencies and disasters, analyze impacts and effects, and validate data For vulnerability analysis of water systems six steps are identified: • Identification of components ... with established chain of command, effective decision support, and trained participants who understand chain of command and coordination requirements Recovery continues until systems return to normal...

Ngày tải lên: 28/06/2014, 22:20

... review and physical inspection of the PV/S to ensure compliance with the requirements of this handbook All components must be tested and tagged as outlined by paragraph 7.1a and section of this handbook ... techniques and requirements of PV/S inspection and testing and certified by the PSM may witness pressure relief valve set tests and hydrostatic tests of nonwelded tubing and flex hoses in place of the ... standard being used The PSMO maintains a copy of all codes and standards listed below and can provide organizations with technical guidance in the design of Category A PV/S a Applicable Codes and...

Ngày tải lên: 31/07/2014, 23:21

... > 0), and νμn+1 (ξn+1 ) is random variable defined by The Model of Stochastic Control and Applications νµn+1 (ξn+1 ) 411 νµn+1 (ξn+1 )+1 ξn+1,j ξn+1 < ξn+1,j j=1 a.s j=1 μn+1 is called controlling ... Average cost Semi-Markov decision processes and the control of queueing systems, Probab, in Eng & Info (1989) 247–272 A Arapostathis, R Kumar, and S Tangirala, Controlled Markov Chains Safety Upper ... Automatic Control 48 (2003) 1230–1234 V S Borkar, On minimum cost per unit time control of Markov chain, SIAM J Control Optim 22 (1983) 965–984 A Arapostathis, R Kumar, and S Tangirala, Controlled...

Ngày tải lên: 06/08/2014, 05:20

... herbaceous-only control, check and TVC treatments All analyses were performed independently by site Analysis of area -of- control data was conducted using both ANOVA and non-linear regression These methods of ... parameters and statistics for describing eighth-year volume per hectare and individual tree DBH, height, and crown radius at the Summit and Marcola sites as a function of area of weed control using ... occurred between the check and the smallest area treatment, large volume gains resulted from expanded areas of control The impact of woody-only control depended on the presence of woody competitors...

Ngày tải lên: 08/08/2014, 00:22

... (44%), and the invasive type in 75 patients (27%) Patients with the exophytic and invasive type of tumor growth carried a 2.8- and 3.9 -fold increased risk of local recurrence, and a 5.1- and 7.5- ... introduction of a spacer between the tongue and the mandible (Fig and 2) Formerly, the incidence of Grade mandibular Table 2: Patients' Current Status Status Alive, with no evidence of disease ... of years and months and years and months At two, three, five and 10 years, the probability of RFS was 89.5%, 87.4%, 86.2% and 85.0%, respectively The two-, three-, five-, and 10-year DRS rates...

Ngày tải lên: 09/08/2014, 10:21

... optimization of processes, recycle, and substitution of chemicals to minimize pollution However, both of these geographic areas are engineered and controlled in terms of materials handling, processing, and ... Pollution Control Act of 1948 and the following Federal Water Pollution Control Act (FWPCA) of 1956, which set funds for research and assisted in state pollution control with construction of wastewater ... States and England had time to deal with waste issues, our continued use and development of agricultural land has diminished our resources, and places high stress on those agricultural lands to...

Ngày tải lên: 11/08/2014, 13:22

... their beds, and others died trying to escape the foglike cloud of poison gas There were thousands of dead and injured in the poor and crowded neighborhoods near the plant; though local officials ... regulation of facilities and activities related to solid wastes (and of hazardous wastes as a subset of solid wastes), is conducted under the provisions of the Resource Conservation and Recovery ... International Standards Organization (ISO) was established in Geneva, Switzerland, in 1947 The purpose of the ISO was (and is) to develop uniform, worldwide standards for the conduct of manufacturing and...

Ngày tải lên: 11/08/2014, 13:22