CN120375955A - Relaxation time analysis method, system and device for impact energy release of energetic material - Google Patents
Relaxation time analysis method, system and device for impact energy release of energetic materialInfo
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Abstract
The application relates to a relaxation time analysis method, a relaxation time analysis system and a relaxation time analysis device for energy-containing material impact energy release, wherein the method comprises the steps of establishing a diffusion control equation of the energy-containing material on a hit target, obtaining an atomic diffusion contribution term for representing atomic diffusion rate based on the diffusion control equation and a reaction product layer, obtaining an interface reaction contribution term for representing interface reaction rate based on a standard Avrami equation, and analyzing the reaction degree of the energy-containing material through the atomic diffusion contribution term and the interface reaction contribution term to solve the relaxation time for energy-containing material impact energy release. According to the application, a coupling mechanism of interface reaction and atomic diffusion under microscopic scale is realized, and the impact energy release of the energetic material can be effectively analyzed by using the coupling mechanism, so that the prediction precision of the impact energy release relaxation time is improved, a reliable basis is provided for engineering design of the energetic material, and the problem of how to improve the calculation precision of the relaxation time of the impact energy release of the energetic material is solved.
Description
Technical Field
The application relates to the field of impact dynamics modeling, in particular to a relaxation time analysis method, a relaxation time analysis system and a relaxation time analysis device for impact energy release of an energetic material.
Background
The energetic material is a novel destructive material which triggers severe detonation reaction when impacting a target at a high speed, and compared with the traditional inert material, the material can release high-density energy in the process of penetrating the target, so that the perforation area of the target can be enlarged, and the damage effect on the inside of the target can be effectively improved. And relaxation time refers to the time history from the energetic material hitting the target plate to the substantial completion of the chemical reaction of the energetic material in the cell.
The reaction model of the Multifunctional Energetic Structural Material (MESMs) under impact load is mostly based on macroscopic image-only theory, such as Lee-Tarver model or classical Avrami equation, so that accurate analysis of the damage characteristic and damage mechanism of the energetic material is difficult to realize, and particularly, the calculation accuracy of the impact energy release relaxation time of the Zr (zirconium) -based amorphous alloy energetic material is difficult.
At present, no effective solution is proposed for improving the relaxation time calculation precision of the impact energy release of the energetic material in the related technology.
Disclosure of Invention
The embodiment of the application provides a relaxation time analysis method, a relaxation time analysis system and a relaxation time analysis device for impact energy release of an energetic material, which at least solve the problem of how to improve the calculation precision of the relaxation time of the impact energy release of the energetic material in the related technology.
In a first aspect, embodiments of the present application provide a method for analyzing relaxation time of energy-containing material impact energy release, the method comprising:
Establishing a diffusion control equation of the energetic material on the hit target, wherein the energetic material is contacted with the hit target under the action of impact load and generates interface reaction and atomic diffusion, and a reaction product layer is generated;
obtaining an atomic diffusion contribution term for characterizing the atomic diffusion rate based on the diffusion control equation and the reaction product layer;
Obtaining an interface reaction contribution term for representing the interface reaction rate based on a standard Avrami equation;
And analyzing the reaction degree of the energetic material through the atomic diffusion contribution and the interface reaction contribution so as to solve and obtain the relaxation time of the energetic material for impact energy release.
In some of these embodiments, deriving an atomic diffusion contribution to characterize the atomic diffusion rate based on the diffusion control equation and the reaction product layer comprises:
Based on the diffusion control equation and a diffusion flux J driving the reaction product layer to thicken, analyzing to obtain that a direct proportion relation exists between the conversion rate of the energetic material and the thickness of the reaction product layer;
and converting the analysis result of the proportional relation in a form equivalent to a standard Avrami equation to obtain an atomic diffusion contribution term for representing the atomic diffusion rate.
In some of these embodiments, analyzing the extent of reaction of the energetic material to solve for a relaxation time for impact energy release of the energetic material by the atomic diffusion contribution and the interfacial reaction contribution comprises:
constructing a total reaction rate equation of the energetic material on the hit target based on the atomic diffusion contribution and the interface reaction contribution;
and analyzing the reaction degree of the energetic material through the total reaction rate equation to solve and obtain the relaxation time of the energetic material for impact energy release.
In some of these embodiments, constructing an overall reaction rate equation for the energetic material on the hit target based on the atomic diffusion contribution and the interfacial reaction contribution comprises:
firstly, combining the atomic diffusion contribution term and the interface reaction contribution term in a linear superposition mode to obtain an initial total reaction rate equation of the energetic material on the hit target;
And introducing a stress item representing the impact load acting force, and correcting the initial total reaction rate equation to obtain a corrected total reaction rate equation.
In some of these embodiments, deriving the interfacial reaction contribution to characterize the interfacial reaction rate based on the standard Avrami equation comprises:
firstly, constructing an initial interface reaction contribution term for representing the interface reaction rate directly based on a standard Avrami equation;
and correcting the initial interface reaction contribution term based on the particle size of the material particles in the energetic material to obtain a corrected interface reaction contribution term.
In some of these embodiments, after reintroducing a stress term characterizing the impact load force, correcting the initial total reaction rate equation to obtain a corrected total reaction rate equation, the method further includes;
and simplifying the corrected total reaction rate equation based on the corrected interface reaction contribution term to obtain a simplified total reaction rate equation.
In some of these embodiments, establishing a diffusion control equation for the energetic material at the hit target comprises:
Based on the Fick's second law, a diffusion control equation of the energetic material on the hit target is established.
In some of these embodiments, the energetic material is a Zr-based amorphous alloy energetic material.
In a second aspect, embodiments of the present application provide a relaxation time analysis system for impact energy release of energetic materials, the system for performing the method as described in the first aspect above, the system comprising a diffusion simulation module, a program construction module, and an analysis solution module;
the diffusion simulation module is used for establishing a diffusion control equation of the energetic material on the hit target, wherein the energetic material is in contact with the hit target under the action of impact load and generates interface reaction and atomic diffusion, and a reaction product layer is generated;
The program construction module is used for obtaining an atomic diffusion contribution term for representing the atomic diffusion rate according to the diffusion control equation and the reaction product layer, and obtaining an interface reaction contribution term for representing the interface reaction rate according to a standard Avrami equation;
And the analysis solving module is used for analyzing the reaction degree of the energetic material through the atomic diffusion contribution and the interface reaction contribution so as to solve and obtain the relaxation time of the energetic material for impact energy release.
In a third aspect, an embodiment of the present application provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the method according to the first aspect when executing the computer program.
Compared with the related art, the relaxation time analysis method, system and device for the energetic material impact energy release provided by the embodiment of the application are characterized in that the diffusion control equation of the energetic material on the hit target is established, wherein the energetic material is in contact with the hit target under the action of impact load to generate interface reaction and atomic diffusion, a reaction product layer is generated, an atomic diffusion contribution term for representing the atomic diffusion rate is obtained based on the diffusion control equation and the reaction product layer, an interface reaction contribution term for representing the interface reaction rate is obtained based on the standard Avrami equation, the reaction degree of the energetic material is analyzed through the atomic diffusion contribution term and the interface reaction contribution term to solve the relaxation time of the energetic material, the coupling mechanism of the interface reaction and the atomic diffusion under the microscopic scale is realized, the impact energy of the energetic material can be effectively analyzed by using the coupling mechanism, the prediction precision of the impact energy release energy relaxation time of the energetic material is improved, and the problem of how to calculate the relaxation time of the energetic material impact energy release precision is improved is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a flow chart of the steps of a method for relaxation time analysis of energy-containing material impact energy release in accordance with an embodiment of the present application;
FIG. 2 is a graphical representation of the extent of energetic material reaction versus time at various impact loads according to an embodiment of the present application;
FIG. 3 is a graph showing the reaction degree of energetic materials at different particle sizes versus time according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an experimental setup for obtaining relaxation times of energetic materials according to an embodiment of the present application;
fig. 5 is a schematic diagram of an internal structure of an electronic device according to an embodiment of the application.
Detailed Description
The present application will be described and illustrated with reference to the accompanying drawings and examples in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. All other embodiments, which can be made by a person of ordinary skill in the art based on the embodiments provided by the present application without making any inventive effort, are intended to fall within the scope of the present application.
It is apparent that the drawings in the following description are only some examples or embodiments of the present application, and it is possible for those of ordinary skill in the art to apply the present application to other similar situations according to these drawings without inventive effort. Moreover, it should be appreciated that while such a development effort might be complex and lengthy, it would nevertheless be a routine undertaking of design, fabrication, or manufacture for those of ordinary skill having the benefit of this disclosure, and thus should not be construed as having the benefit of this disclosure.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is to be expressly and implicitly understood by those of ordinary skill in the art that the described embodiments of the application can be combined with other embodiments without conflict.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "a," "an," "the," and similar referents in the context of the application are not to be construed as limiting the quantity, but rather as singular or plural. The terms "comprises," "comprising," "includes," "including," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to only those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in connection with the present application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" as used herein means two or more. "and/or" describes the association relationship of the association object, and indicates that three relationships may exist, for example, "a and/or B" may indicate that a exists alone, a and B exist simultaneously, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The terms "first," "second," "third," and the like, as used herein, are merely distinguishing between similar objects and not representing a particular ordering of objects.
An embodiment of the present application provides a relaxation time analysis method of energy-containing material impact energy release, fig. 1 is a step flowchart of a relaxation time analysis method of energy-containing material impact energy release according to an embodiment of the present application, as shown in fig. 1, the method includes the following steps:
step S102, establishing a diffusion control equation of the energetic material on the hit target, wherein the energetic material is contacted with the hit target under the action of impact load and generates interface reaction and atomic diffusion, and a reaction product layer is generated;
In step S102, the energetic material is specifically Zr (zirconium) -based amorphous alloy energetic material.
It should be noted that the relaxation time refers to the time course from the collision of the energetic material with the hit target under the impact load to the substantial completion of the chemical reaction of the energetic material, and the substantial completion of the chemical reaction of the energetic material refers to that the particles inside the energetic material are not broken up by chemical reaction, and does not represent the end of the combustion of the fragments.
Step S102 preferably, the energetic material is preferably an al—zr (zirconium-aluminum) alloy energetic material.
Taking an al—zr alloy energetic material as an example, under the action of high-speed impact load, the mechanism of chemical reaction of the al—zr alloy energetic material may be regarded as being mainly a solid diffusion reaction mechanism, so that a cracking phenomenon occurs in the energetic material, and a particle cloud of Al particles, zr particles, and al—zr reaction products is formed. The particle cloud contacts oxygen in the air to generate deflagration and release a large amount of heat. Specifically, ① surface oxide layer is broken, al particle surfaceFilm and Zr particle surfaceThe film is broken under high pressure shearing to expose fresh metal interface, ② atoms are inter-diffused, the impact temperature rise can obviously raise the diffusion rate of atoms, al atoms are diffused into Zr particles through the grain boundary body of Zr, and vice versa, but the diffusion rate of Zr is slower, supersaturated solid solution of Zr (Al) can be formed in the initial stage, ③ nucleates and grows, al3Zr phase preferentially nucleates at the Al/Zr interface or grain boundary, and gradually coarsens through an Ostwald ripening mechanism.
It follows that diffusion is generally a rate controlling step due to the reaction of al—zr particles, especially after the reaction product layer is formed, atoms need to diffuse through the reaction product layer to continue the reaction, where the concentration gradient may change over time, belonging to non-steady state diffusion. Thus, step S102 preferably establishes a diffusion control equation for the energetic material at the target under impact based on Fick' S second lawWherein D is the diffusion rate (in m 2/s) reflecting the diffusion capacity of atoms through the product layer,Is the rate of change of concentration (units) X, y and z are coordinate values of a space coordinate system,、AndIs the rate of change of concentration with space coordinate values.
Step S104, obtaining an atomic diffusion contribution term for representing the atomic diffusion rate based on a diffusion control equation and a reaction product layer;
the step S104 specifically includes the following steps:
Step S1041, based on a diffusion control equation and a diffusion flux J for driving the reaction product layer to thicken, analyzing to obtain a direct relation between the conversion rate of the energetic material and the thickness of the reaction product layer;
Step S1041 specifically, driving the diffusion flux of the reaction product layer thickening Wherein C 0 is the surface concentration (mol/m 3) of the reaction product layer, delta is the thickness of the reaction product layer, D is the diffusion rate (unit m 2/s), and t is the time. For the diffusion fluxPerforming separation variable integration to obtain
Step S1041 is specifically based on a diffusion control equationAnd (3) withCan be analyzed to obtain the direct proportion between the conversion rate of the energetic material and the thickness of the reaction product layer, namelyWhere t is time and α diff (t) represents the reaction rate of the diffusion term introduced as a function of time.
In step S1042, the analysis result of the proportional relationship is converted by the form equivalent to the standard Avrami equation, so as to obtain the atomic diffusion contribution term for characterizing the atomic diffusion rate.
Step S1042, analyzing the proportional relationship by the form equivalent to the standard Avrami equationConversion to obtain atomic diffusion contribution term for representing atomic diffusion rate。
It should be noted that Avrami equations (Johnson-Mehl-Avrami-Kolmogorov equation, alframi equation, JMAK equation) are unique image equations describing crystallization kinetics and phase change rate versus time during solid state phase change. The standard form of Avrami equation is, wherein,The crystallization volume fraction at t, k is a rate constant, is related to material characteristics (such as temperature, nucleation rate, growth rate), n is Avrami index, reflects phase change mechanism and nucleation/growth characteristics, and t is time.
Step S106, based on a standard Avrami equation, obtaining an interface reaction contribution term for representing the interface reaction rate;
Step S106 specifically, based on the standard Avrami equation, an interface reaction contribution term for representing the interface reaction rate is constructed ;
Step S108, analyzing the reaction degree of the energetic material through the atomic diffusion contribution and the interface reaction contribution to solve the relaxation time of the energy-containing material impact energy release.
Step S108 specifically includes the following steps:
Step S1081, constructing a total reaction rate equation of the energetic material on the hit target based on the atomic diffusion contribution and the interface reaction contribution;
In step S1081, the contribution to atomic diffusion is first linearly superimposed Contribution to interface reactionCombining to obtain an initial total reaction rate equation of the energetic material on the hit target, wherein,To account for the dominant contribution of nucleation and interfacial reactions,For diffusion-dominated contribution, α (T, T) represents the initial total conversion, T is the conversion time, T is the reaction temperature;
it should be noted that the interfacial reaction rate and the diffusion rate have temperature dependence, so the above equation of the total reaction rate The interfacial reaction rate k and the diffusion rate D are both in accordance with the Arrhenius equation, i.eAnd (3) withWhere k 0 is a pre-finger factor (including interfacial energy, nucleation site density, etc., related to the material eigen reaction frequency), typical values for Al-Zr systems are about 10 10s-1）,Ea as apparent activation energy (in kJ/mol, reflecting nucleation and growth energy barriers), R is the gas constant (generally taken) D 0 is the bulk diffusion coefficient (about 10 -5m2/s in Al-Zr system), Q is the diffusion activation energy (about 200kJ/mol in Al in Zr), and T is the reaction temperature.
Specifically, in step S1081, a stress term representing the impact load acting force is introduced again, and the initial total reaction rate equation is corrected, so as to obtain a corrected total reaction rate equation.
In the kinetic model of the solid phase reaction of Al-Zr particles, the impact load can obviously change the reaction progress by influencing the atomic diffusion, the interfacial reaction rate and the microstructure evolution. The initial total reaction rate equation is corrected by introducing a stress term representing the impact load acting force, so as to obtain a corrected total reaction rate equation (the reaction rate expression of the complete impact induced chemical reaction) expressed by the impact pressure P σ, the reaction temperature T and the time T:
Wherein, A p and z-0.13 are material parameters (which can be measured by experiments) related to energetic materials, P r is reaction threshold pressure (which can be 4 GP), alpha (T, T, P) is corrected total reaction rate equation, T is time, T is reaction temperature, and P is impact pressure.
And S1082, analyzing the reaction degree of the energetic material through a total reaction rate equation to solve the relaxation time of the energy release of the energetic material.
It should be noted that, based on the calculation model (total reaction rate equation) of the impact reaction behavior of the energetic material of the interface reaction and the diffusion rate, the relaxation time calculation of the energetic material taking parameters such as the material composition, the granularity, the loading strength and the like into consideration is realized.
It should be noted that fig. 2 is a schematic diagram showing the relationship between the reaction degree and time of the energetic material under different impact loads according to an embodiment of the present application, fig. 3 is a schematic diagram showing the relationship between the reaction degree and time of the energetic material under different particle sizes according to an embodiment of the present application, as shown in fig. 2 and 3, the ordinate α is the reaction rate, the abscissa t is the time, fig. 2 is the reaction rate time course curve under different impact speeds, and fig. 3 is the reaction rate time course curve under different particle sizes, and the relaxation time can be deduced by combining the total reaction rate equations obtained in the embodiment of the present application with fig. 2 or 3. And FIG. 4 is a schematic diagram of an experimental setup for testing the relaxation time of an energetic material according to an embodiment of the present application. Further, the relaxation time measured by the experiment using fig. 4 and the relaxation time calculated by the method provided by the embodiment of the application have an error of not more than 20%. For example, the relaxation time obtained in one experiment is 2.47ms (the final moment is the most intense combustion, i.e. the maximum brightness in the high-speed photographic image, the test result of the relaxation time t is 2.47 ms), while the reaction rate calculated by the total reaction rate equation obtained by the embodiment of the application is 41%, the corresponding relaxation time of the abscissa is found in the reaction rate time course curve of fig. 2 to be 2.9ms, and the error of the two is 17.4%.
Through the steps in the embodiment of the application, a coupling mechanism of interface reaction and atomic diffusion under a microscopic scale is realized, and the impact energy release of the energetic material can be effectively analyzed by using the coupling mechanism, so that the prediction precision of the impact energy release relaxation time is improved, a reliable basis is provided for engineering design of the energetic material, and the problem of how to improve the calculation precision of the relaxation time of the impact energy release of the energetic material is solved.
In some of these embodiments, for step S106 in the above embodiments, the small particles can provide more nucleation sites due to the large surface area, since the particle size of the material particles in the energetic material can affect the reaction rate. Therefore, in step S106, based on the standard Avrami equation, an initial interface reaction contribution term for representing the interface reaction rate is constructedThereafter:
Optionally, correcting the initial interface reaction contribution based on the particle size of the material particles in the energetic material to obtain a corrected interface reaction contribution.
Preferably, the initial interface reaction contribution term is correctedAvrami index n in (a) to achieve regulation of nucleation mechanism:
Where r is the particle size of the material particles in the energetic material, n 0 is the Avrami index at reference size r 0, which generally corresponds to the bulk nucleation mechanism (e.g., n 0 ≡1.2 when r 0 =10 μm). m is an empirical index (preferably 0.5-1.0, reflecting the sensitivity of particle size to nucleation mode).
In some embodiments, a stress term representing the impact load acting force is introduced in the above embodiments, and after the initial total reaction rate equation is modified, the modified total reaction rate equation may be simplified based on the modified interface reaction contribution term, so as to obtain a simplified total reaction rate equation:
It should be noted that α (T, P σ, r) represents a simplified total reaction rate equation, T time, T reaction temperature, P σ impact pressure, r particle size, α (T, n) represents a reaction rate equation for introducing time T, reaction temperature T, and a control value n of nucleation mechanism, and α (P σ) represents a reaction rate equation for introducing P σ impact pressure.
By simplifying the total reaction rate equation, the application can effectively improve the calculation efficiency of the impact energy release relaxation time of the energetic material.
It will be further appreciated that the steps shown in the flowcharts described above or in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be performed in an order other than that shown or described herein.
The embodiment of the application provides a relaxation time analysis system for energy-containing material impact energy release, which comprises a diffusion simulation module, a program construction module and an analysis solving module;
the diffusion simulation module is used for establishing a diffusion control equation of the energetic material on the hit target, wherein the energetic material is contacted with the hit target under the action of impact load and generates interface reaction and atomic diffusion, and a reaction product layer is generated;
the program construction module is used for obtaining an atomic diffusion contribution term for representing the atomic diffusion rate according to a diffusion control equation and the reaction product layer, and obtaining an interface reaction contribution term for representing the interface reaction rate according to a standard Avrami equation;
And the analysis solving module is used for analyzing the reaction degree of the energetic material through the atomic diffusion contribution and the interface reaction contribution so as to solve and obtain the relaxation time of the energetic material for impact energy release.
The diffusion simulation module, the program construction module and the analysis solving module in the embodiment of the application realize a coupling mechanism of interface reaction and atomic diffusion under a microscopic scale, and can effectively analyze the impact energy release of the energetic material by using the coupling mechanism so as to improve the prediction precision of the impact energy release relaxation time, provide a reliable basis for engineering design of the energetic material and solve the problem of how to improve the calculation precision of the relaxation time of the impact energy release of the energetic material.
The above-described respective modules may be functional modules or program modules, and may be implemented by software or hardware. For modules implemented in hardware, the modules may be located in the same processor, or may be located in different processors in any combination.
The present embodiment provides an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the method embodiments described above.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, where the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, the electronic device may further comprise a processor, a memory, a network interface, a display screen and an input device connected by a system bus. Wherein the processor of the electronic device is configured to provide computing and control capabilities. The memory of the electronic device includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface of the electronic device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a relaxation time analysis method of energy-containing material impact energy release. The display screen of the electronic device can be a liquid crystal display screen or an electronic ink display screen, the input device of the electronic device can be a touch layer covered on the display screen, can also be a key, a track ball or a touch pad arranged on the shell of the electronic device, and can also be an external keyboard, a touch pad or a mouse and the like.
It should be noted that, specific examples in this embodiment may refer to examples described in the foregoing embodiments and alternative implementations, and this embodiment is not repeated herein.
In addition, in combination with the relaxation time analysis method of the impact energy release of the energetic material in the above embodiment, the embodiment of the application can be realized by providing a storage medium. The storage medium having stored thereon a computer program which, when executed by a processor, implements a relaxation time analysis method for impact energy release of any of the energetic materials of the above embodiments.
In one embodiment, fig. 5 is a schematic diagram of an internal structure of an electronic device according to an embodiment of the present application, and as shown in fig. 5, an electronic device, which may be a server, is provided, and an internal structure diagram thereof may be as shown in fig. 5. The electronic device includes a processor, a network interface, an internal memory, and a non-volatile memory connected by an internal bus, wherein the non-volatile memory stores an operating system, computer programs, and a database. The processor is used for providing computing and control capabilities, the network interface is used for communicating with an external terminal through network connection, the internal memory is used for providing an environment for the operation of an operating system and a computer program, the computer program is executed by the processor to realize a relaxation time analysis method of energy-containing material impact energy release, and the database is used for storing data.
It will be appreciated by those skilled in the art that the structure shown in fig. 5 is merely a block diagram of a portion of the structure associated with the present inventive arrangements and is not limiting of the electronic device to which the present inventive arrangements are applied, and that a particular electronic device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (SYNCHLINK) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
It should be understood by those skilled in the art that the technical features of the above-described embodiments may be combined in any manner, and for brevity, all of the possible combinations of the technical features of the above-described embodiments are not described, however, they should be considered as being within the scope of the description provided herein, as long as there is no contradiction between the combinations of the technical features.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
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