76 results about "High severity" patented technology

Disclosed is a process for making middle distillate and lower olefins. The process includes catalytically cracking a gas oil feedstock within a riser reactor zone by contacting under suitable catalytic cracking conditions within the riser reactor zone the gas oil feedstock with a middle distillate selective cracking catalyst that comprises amorphous silica alumina and a zeolite to yield a cracked gas oil product and a spent cracking catalyst. The spent cracking catalyst is regenerated to yield a regenerated cracking catalyst. Within an intermediate cracking reactor such as a dense bed reactor zone and under suitable high severity cracking conditions a gasoline feedstock is contacted with the regenerated cracking catalyst to yield a cracked gasoline product and a used regenerated cracking catalyst. The used regenerated cracking catalyst is utilized as the middle distillate selective catalyst.

In software development, risks can be quantified and defined by certain attributes. For instance, a risky area will have a large number of defects/changes for that area, a large number of high severity defects for that area, or a large number of coders/authors for that same area. All these metrics are already captured in Unified Change Management tools, version control tools and bug tracking tools. By taking the appropriate data and associating them with certain triggers and thresholds, an embodiment of the invention automatically identifies which test cases to run for regression. Through historical and previous test data and test runs, an embodiment of the invention forecasts how long it will take to run these regression suites.

A process utilizing a low severity hydrocracker prior to a high severity hydrocracker for the processing of petroleum based and synthetic hydrocarbon feedstocks into distillate fuels and high quality lubricant base oils. The process minimizes the size and conditions required by the high severity hydrocracker by closely matching such configuration with the desired product slate.

According to an embodiment disclosed, a feedstock hydrocarbon may be processed by a method which may include separating the feedstock hydrocarbon into a lesser boiling point hydrocarbon fraction and a greater boiling point hydrocarbon fraction, cracking the greater boiling point hydrocarbon fraction in a high-severity fluid catalytic cracking reactor unit to form a catalytically cracked effluent, cracking the lesser boiling point hydrocarbon fraction in a steam cracker unit to form a steam cracked effluent, and separating one or both of the catalytically cracked effluent or the steam cracked effluent to form two or more petrochemical products. In one or more embodiments, the feedstock hydrocarbon may include crude oil and one of the petrochemical products may include light olefins.

A method for monitoring and securing a facility without employing a manned control center, according to which a server acquires surveillance data from each of a plurality of distributed surveillance devices deployed within or adjacent to a given security sensitive facility. Then the server receives an intrusion alert from a guard, or from one or more of the plurality of surveillance devices to initiate a triggering event, if the acquired surveillance data is indicative of activity that has been detected at an indicated location. A first guard is alerted and presented with a full situational awareness image to assess the severity of the detected activity and the triggering event is terminated if found by the first guard to be of a low severity, or an interception operation initiated by self-dispatching or dispatching one or more additional guards to a close by location that holds tactical advantage relative to the indicated location if the triggering event was found by the first guard to be of a high severity.

A feed stream is first processed in a hydrotreating reaction zone and then the effluent is separated into three fractions in an augmented first high pressure separator. Controlled portions of the middle and heavy hydrocarbon fractions are passed into a high severity hydrocracking zone, while the remaining portions of these two fractions are passed into a second high pressure separator for recovery. The effluent of the hydrocracking zone is also fed to the second high pressure separator.

The invention discloses an FMEA analysis based comprehensive reliability allocation method for a numerical control machine tool, and belongs to the field of mechanical system reliability analysis. According to the method, the comprehensive reliability allocation for a system is carried out based on an FMEA three-order conversion function and a Copula function, so that the problems of a single consideration factor, only capability of regulating reliability differentiation degree of high severity or failure frequency, and the like in an existing machine tool reliability allocation method are solved; the conversion function in the method is simple in form and easy to understand and operate, covers the advantages of a conventional index conversion function and extends reliability differentiation degree regulation capability of a low interval and a medium interval of an FMEA analysis result; the method considers influence of various allocation indexes and fault correlation effects at the same time, and has the characteristics of good integrity and convenience for engineering application; and compared to a conventional method, the subsystem reliability obtained by analysis with the method is lower, the manufacturing and processing cost requirements can be better lowered, and very important engineering value is achieved.

The present invention describes a method for simulating a hacking attack on a Network, wherein the Network comprises at least one of a plurality of data processing units (DPUs), a plurality of users and a plurality of communication links, to assess vulnerabilities of the Network. The method includes receiving one or more scan parameters for the Network. Further, the method includes creating at least one master agent by a system to gather information about the Network, wherein the information pertains to critical and non-critical information about the Network. The method includes creating an Information Model and then incrementally updating the Information Model during the hacking attack. The Information Model is the abstract representation of information collected by the system. Furthermore, the method includes generating a Multiple Attack Vector (MAV) graph based on one or more scan parameters and the Information Model. MAV has the ability to combine plurality of low and medium severity vulnerabilities associated with the data processing units (DPUs), users and communication links, correlate vulnerabilities in combination with Information Model and generate high severity attack paths that can lead to compromise of the Network. Moreover, the method includes launching one or more attacks based on the MAV graph to compromise the Network. The method further includes installing atleast one slave agent on the compromised Network to perform the one or more attacks in a distributed manner. Moreover, the method includes performing a multi stage attack by using the at least one slave agent and the at least one master agent by repeating above steps. Finally, the method includes generating a report by the scan controller, wherein the report contains details about the compromisedNetwork and the vulnerabilities of the Network.

The present invention provides an improved fluidized catalytic cracking process coupled with a two stage regeneration process in which the activity of the circulating catalyst is independently controlled for cracking hydrocarbon feedstocks or the vapors at low severity to produce maximum light cycle oil/distillate in one riser whilst cracking recycle streams comprising heavy cycle oil (HCO), light cracked naphtha (LCN) etc. in a second riser operating at high severity to produce LPG.

An object is to accurately monitor deterioration of current or future voltage stability, by dynamically changing a bus in which current or future voltage stability deteriorates, in stability monitoring calculation of a power system. Hence the present invention provides a voltage stability monitoring device, which monitors voltage stability of a power system, including an assumed change scenario calculation unit which produces a plurality of assumed change scenarios indicating a scenario of a change that is assumed based on at least one of a system configuration of the power system and a change of a tide state; a voltage stability calculation unit which calculates the voltage stability using the assumed change scenario; a voltage stability margin calculation unit which calculates a voltage stability margin indicating margin degree of the voltage stability, based on the voltage stability; an each scenario severity ranking calculation unit which selects an assumed change scenario with high severity of the voltage stability for each assumed change scenario, based on the voltage stability margin; a vulnerable bus calculation unit which calculates which of buses in the power system is a vulnerable bus that decreases voltage stability, based on the assumed change scenario which is selected; and a monitoring location change unit which changes a monitoring target of the voltage stability, based on information of the vulnerable bus.

The present invention relates to a process for desulfurizing heavy oil feedstreams with alkali metal compounds and improving the compatibility of the to stream components in either the feed stream, an intermediate product stream, and/or the reaction product stream in the desulfurization process. The present invention utilizes a high stability aromatic-containing stream that is preferably added to the heavy oil prior to reaction with the alkali metal compounds. The resulting stream resists precipitation of reaction solids in the desulfurization reactors. Even more preferably, the desulfurization system employs at least two desulfurization reactors in series flow wherein the high stability aromatic-containing stream is contacted with the reaction product from the first reactor prior to the second reactor, wherein the first reactor can be operated at a higher severity than without the use of the high stability aromatic-containing component stream.

The invention relates to the field of high-molecular materials, in particular a flame-retardant polyamide composite material. The flame-retardant polyamide composite material provided by the invention is prepared from the following components in parts by weight: 35 to 85 parts of polyamide resin and 10 to 25 parts of flame retardant, wherein the flame retardant is prepared from a red phosphorus flame retardant and a synergistic flame retardant; the synergistic flame retardant is an acetylacetone metal salt or a mixture of the acetylacetone metal salt and magnesium hydrate or/and silicate; the acetylacetone metal salt accounts for more than or equal to 40 percent by weight of the mixture. The flame-retardant polyamide composite material provided by the invention has excellent flame retardance security: the flame retardant rating can reach a 0.8mm UL94V-0 level; the ignition risk is low, the glowing filament combustion index can reach a highest severity level (960/0.75), and the glowing filament time is less than or equal to 15s; meanwhile, the initiation temperatures of glowing filaments of three thicknesses (3.0mm, 1.5mm and 0.75mm) can be up to the severity level of 750 DEG C.

The invention discloses a state evaluation method of a hydropower plant computer monitoring system. The method comprises a step of respectively initiating an upper computer state evaluation model and a lower computer state evaluation model which are provided with hydropower plant computer monitoring systems and establishing the corresponding classification diagnosis evaluation table, respectively detecting the actual degradation degree of each evaluation program and obtaining a basic deduction value, and multiplying the basic deduction value with the weight coefficient corresponding to the evaluation program to obtain the actual deduction value of the evaluation program, a step of comparing the actual deduction value of each evaluation program in each program classification with the classification diagnosis evaluation table and judging the diagnosis state corresponding to each program classification, and a step of obtaining the diagnosis state with the highest severity degree as the final evaluation result of the upper computer/lower computer of the hydropower plant computer monitoring system. According to the state evaluation method, the running state of the hydropower plant computer monitoring system can be comprehensively evaluated, the influence on a hydropower plant and even the stable operation of a power system by fault expansion is prevented, and the examination and maintenance cost can be greatly reduced.

The invention aims to provide a rubber composition for a tire which achieves a balanced improvement in the abrasion resistance under both low and high severity abrasion conditions, low heat build-up properties, and chipping resistance. The invention relates to a rubber composition for a tire, including: a rubber component containing 60% by mass or more of a natural rubber component; and a carbon black having a cetyltrimethylammonium bromide (CTAB) specific surface area of 140-160 m²/g, a ratio (CTAB/IA) of the cetyltrimethylammonium bromide specific surface area to an iodine adsorption number (IA) of 0.85-1 m²/g, and a ratio (ΔD50/Dst) of a half width (ΔD50) of Stokes' diameter distribution of aggregates to a Stokes' diameter (Dst) of aggregates, as determined by a centrifugal sedimentation method, of 0.9-0.99, the natural rubber component containing 20% by mass or more of highly purified natural rubber per 100% by mass of the natural rubber component.

A process and system for the conversion of biomass under high severity in the presence of a catalyst to produce a bio-oil, olefins, methane, and carbon monoxide (CO). The methane and/or CO can be used to generate hydrogen and the generated hydrogen can be used for hydrotreating the bio-oil. Additionally, or alternatively, a syngas stream, a carbon dioxide-rich stream, and/or a methane-rich stream can be recovered for use in the bio-oil production process and/or for use in a conventional petroleum refinery and/or petrochemical plant.

The invention relates to a risk assessment method and device, computer equipment and readable storage medium. The method includes a step of obtaining inputted parameters of an event to be evaluated, astep of obtaining a risk assessment applicable standard corresponding to the event to be evaluated, a step of converting the parameters of the event to be evaluated into dimension parameters according to a preset rule, a step of comparing the dimension parameters and a corresponding threshold in the risk assessment applicable standard to obtain a severity level of each dimension, a step of determining highest severity levels by a short board method and counting the number of the highest severity levels, and a step of obtaining a target severity level according to the highest severity levels when the number of the highest severity levels exceeds a preset value and outputting the target severity level. According to the risk assessment method and device, the computer equipment and the readable storage medium, manual intervention is not needed, the efficiency is high, the risk assessment applicable standard is set in advance, and the accuracy of risk assessment is improved.

The present invention belongs to the real-time traffic status navigation technology field, and relates to a city intelligent traffic induction method based on a RFID and a WeChat platform. The concrete technology comprises: a RFID reading device reads the information of RFID chips in vehicles and sends the information to a database terminal for calculation and processing, the passing time T(N) of each time on a road section is monitored to evaluate the jamming condition of the road section, if T(N)<1.5T(S), the jamming condition is evaluated as the low-severity jamming, if 2.0T(S)> T(N)>=1.5T(S), the jamming condition is evaluated as the mid-severity jamming, and if T(N)>=2.0T(S), the jamming condition is evaluated as the high-severity jamming, the vehicle jamming quantity S(N) and the vehicle jamming quantity growth rate F(N1) on the road section are employed to evaluate the condition changing trend, and a server calls corresponding information and send the corresponding information to the official account of a user phone terminal according to the query request received by an intelligent traffic induction WeChat public platform. The city intelligent traffic induction method based on the RFID and WeChat platform is simple in structure, reliable in principle and low in installation, can effectively monitor the road traffic jamming condition, can perform effective induction, and is friendly in application environment and wide in the market prospect.

Hydrocarbon feedstreams are desulfurized using an alkali metal reagent, optionally in the presence of hydrogen. Improved control over reaction conditions can be achieved in part by controlling the particle size of the alkali metal salt and by using multiple desulfurization reactors. The processes herein allow a simple and effective method for removing the majority of coke formed in the alkali metal reagent reactions with the hydrocarbon feedstreams. This makes it cost effective to run such processes at higher severities (which result in higher coke production) thereby resulting in increased amounts of valuable converted hydrocarbon product yields. The process improvements herein may also be used to increase total throughput through a unit due to the ability to effectively manage higher coke content in the reaction products.