They are among the simpler interactive software tools, and, as such, they. Demonstrators will be designed to fulfil scalability towards industrial needs and focus on. Sort by date 1 helping software developers help you novemberdecember 2017. The mepdg is designed to update the 1993 aashto guide for design of pavement structures, which is primarily based on empirical observations from the aasho road test that began in the 1950s. Provide operations for the user to select one at a time. Modcomp aims to develop novel engineered fibrebased materials for technical, high value, high performance products for nonclothing applications at realistic cost, with improved functionality and safety.
However the input and output data can be transformed from one unit system to another with additional software. Comparison of static and dynamic backcalculation of. Layout calculations is a program designed for filemaker pro 9 and 10 that allows you to display data using no fields or relationships. The mod calculator an online tool which shows mod for the given input. Modcomp modular computer systems, inc was a small minicomputer vendor that specialized in realtime applications.
New versions now available a new version of agentcalcs for co2 is available for immediate shipment. In order our customers to find the best solution for their challenge, indar has a comprehensive pump selection program. Key words modcomp, back calculation, modulus, youngs modulus, elastic properties, surface deflection, stress sensitivity 18. Even though the talent recruiter was an amazing guy with a down to earth personality the interviewer was very unprofessional and the interviewer used profanity which was one of many red flags i noticed to stay away from this company. A key part of gear design software development is customer feedback. Gear calculation software free download brothersoft. Abstract deflection basin measurements for the purpose of structural capacity evaluation are a key the near term, shrp will applbackdculation procedure to these deflection measurements in order to estimate the in situ elastic moduli of the pavement layer materials.
Furthermore, a new method was proposed by implementing a code using basic programming language and the obtained results were compared with those from elmod6. The process that was used to back calculate the elastic properties of the pavement layers and subgrade soils are summarized in this part of the report. Previous versions were limited to 100 lb maximum capacity cylinders. Demonstrators will be designed to fulfil scalability towards industrial needs and. Currently, the only means of assessing the performance of a backcalculation algorithm.
Submersible motor pump sets cooperation with our clients is our reason of being, providing a personalized relationship with a clear objective. Pdf backcalculation of pavement layers moduli using 3d. Therefore, selection of the back calculation software and procedures were confined to those that are based on the use of elastic layer theory. They were founded in 1970 in fort lauderdale, florida. Modified cost effective fifre based structures with improved multifunctionality and performance. Newton optimization algorithm were adopted in the proposed method. It is the same for filed data created by the measuring software.
This report documents the procedure and steps used to backcalculate the layered elastic properties youngs modulus and the coefficient and exponent of the nonlinear constitutive equation from deflection basin. It calculates the right airflow volumes and duct sizes for your system. Performance evaluation of backcalculation algorithms through. Virginia dot modtag programdownload free software programs. With the right feedback, you can get your software developer to work for you to provide the most relevant features possible 2 romax technology launches gearbox and driveline. Thus, the back calculated youngs modulus derived from modcomp should be compared with laboratorymeasured resilient moduli for the different pavement materials and subgrade soils. The program can obtain results for different types of objects. We specialize in offering all of the hardware and software tools needed for. Upper right modcomp il, models 20 to 45cp lower leftmodcomp il, models 5 to 19 lower right modcomp l, all models modular computer systems, inc. The fwd test data was processed using modcomp 3, a popular fwd back calculation software, to determine the elastic modulli of base layers. Carbon dioxide flow calculation software from guardian services, inc. His substantial accomplishments in this area include development of the modcomp software for backcalculation of pavement layer moduli. Modcomp uses the fwd deflection profile alo ng with theory of elasticity and an iterative process to fit elastic moduli to the layers of the flexible pavement. A software calculator is a calculator that has been implemented as a computer program, rather than as a physical hardware device.
The modulus of the subgrade can be converted into a subgrade rvalue. A quasistatic dynamic analysis technique of laplace transformation and a modified gaussnewton optimization algorithm. Index backcalculation of layer parameters for ltpp test. Can someone suggest the software for back calculation of. Both backcalculation methods resulted in higher layer moduli than the laboratory results. In all probability, these cvalues are dependent on the back calculation software package used. Pdf a finite element based backcalculation program for flexible.
Area calculator can calculate some parameters and the area and perimeter of 2d objects. The fwd data gathered from different test sites, including the zanjantabriz, eivanekeygarmsar and garmsarsemnan freeways and also rafsanjan. In addition, a derived value population density is calculated and displayed directly on the layout. Modcomp analyses were performed in a batch mode by executing the application file from an msdos prompt. This annual list recognizes an elite group of it solution providers. If an input is given then it can easily show the result for the given number. Backcalculation of layer moduli of ltpp general pavement. To improve the accuracy of backcalculation of soil modulus using the portable falling weight deflectometer pfwd, a viscoelastic method vem overcoming the limitations of the conventional linear elastic method lem was proposed. Accuracy evaluation of statically backcalculated layer. Area calculator software free download area calculator. Our builtin antivirus checked this download and rated it as 100% safe. Backcalculation of soil modulus from pfwd based on a. Est3 programming manual v about this manual this manual provides reference information to support the system programming function.
In this research, three software programs, modulus 6. This is known as the split point, and is set by each state. Area calculator download area calculator calculates. Fulldepth reclamation of asphalt pavements using lime. The theoretical results show that 1 the use of multifrequency backcalculation can lead to satisfactory convergence of layer moduli even when the number of. Software selection strategic highway research program. Area calculator software free download area calculator top 4 download offers free software downloads for windows, mac, ios and android computers and mobile devices. Byjus mod calculator is a tool which makes calculations very simple and interesting. Used for title plans, building plans, road and subdivision plans. There are hundreds of deflection basins to be analyzed on a persite basis, considering the different drop heights, the number of test points along a seasonal and gpssps project. Apr 07, 2015 annual list recognizes it solution providers with deep technical expertise and premier certifications billerica, mass. Falling weight deflectometer fwd mndot pavement design. As no single organization or country has the capacity to successfully bring about the innovations and validations intended in modcomp on its own, a wellbalanced consortium has been arranged, with partners that are complementary to each. Objective and scope the primary objective of this paper is to introduce some of the advanced data mining tools to the pavement community and examine their usefulness in solving an inverse problem encountered in the nondestructive condition evaluation of.
Click here for additional information and photos on. Precision of backcalculation analysis and independent parametersbased models in estimating the pavement layers modulusfield and experimental study. A basic flowchart patterned after lytton, 1989 1 that represents the fundamental elements in all known backcalculation programs is shown as figure 1. All internal application calculations and calls to leaf module are still. Also plots farms, miningleases, your own sketches or any design plan. Full depth reclamation of asphalt pavements using class f fly ash. It shows a conventional selection portal based on a cartesian product x join. This requires a more detailed analysis using the backcalculation technique and software called modcomp. Through the 1980s, modcomp lost market share as more powerful microcomputers became popular, and digital equipment.
Modcomp has been an it solutions integrator in the state of florida since 1968. Verification of falling weight deflectometer backanalysis. Intermodulation calculator intermodulation study software. Some of these packages are, based on odemarks equivalent layer theory, elt, and introduced in. Furthermore, a new method was proposed by implementing a code using basic programming language and the obtained results were compared with. Modcomp is listed in the worlds largest and most authoritative dictionary database of abbreviations and acronyms. Bakfaa is the faa software to perform backcalculation of pavement. Road athenslamia, 341 00 ritsona, halkida, greece t. A software calculator is a calculator that has been implemented as a computer program, rather than as a physical hardware device they are among the simpler interactive software tools, and, as such, they. End users from a wide range of industrial sectors transport, construction. Can be used to perform any process that consists of a sequence of steps each of which applies one of these operations. Fva software offers simulation and calculation of transmission systems. Cfm and sizing calculations design master software.
The new version permits cylinder sizes up to and including 120 lb capacity. Knowledge discovery and data mining in pavement inverse. Modcomp uses the fwd deflection profile along with theory of elasticity and an iterative process to fit elastic moduli to the layers of the flexible pavement. Opc server for modcomp scadabase realtime scada application. Turn to design master hvac for your complete hvac design and drafting solution. The fwd test data was processed usi ng modcomp 8, a popular fwd back calculation software, to determine the elas tic moduli of base layers. Modcomp, back calculation, modulus, youngs modulus, elastic. The modcomp software package was used in the first round of backcalculation for all pavements. This report documents the procedure and steps used to back calculate the layered elastic properties youngs modulus and the coefficient and exponent of the nonlinear constitutive equation from deflection basin measurements for all of the longterm pavement. Bossinesq equations, or a two or three dimensional finite. Dvd5 or dvd9 intelligent size calculation will suggest a dvd if data will download now. The 3d fem backcalculation approach was used to backcalculate the layers moduli of. Although many analyses of deflection data can be undertaken, the studies currently underway within the ltpp program, by definition, require highly focused efforts accomplishable within a. Modcomp analyses were not included in this program because only a limited number of sections were analyzed using modcomp.
For over a decade gsi has offered agent calcs for co2, a generic high pressure co2 flow calculation program. Introduction software of software through benchmarking. Demonstrators will be designed to fulfil scalability towards industrial needs and focus on trl5trl6. Modulus, wesdef, modcomp, and issem4 were selected for llexible. Backcalculation of layer parameters for ltpp test sections, volume ii. The tonn program may be downloaded from the pavement design software webpage. Opc certification requires extensive testing to ensure true interoperability. You must know the actual thickness of each layer of the road. The backcalculation process is usually iterative and normally done with computer software. Abstractthis study demonstrates the use of class f fly ash in combination with lime or lime kiln dust in the full depth reclamation fdr of asphalt pavements.
Backcalculation methodology and procedures, december. I interviewed at modcomp deerfield beach, fl in february 2014. Modcomp modified cost effective fibre based structures with. Daps deflection analysis of pavement structures backcalculation of layer stiffness from deflection data using the singular value decomposition technique program installation the program is supplied on a single cdrom or via the internet. Calculation software evo soft fte maximal, a member of sandmartin international holdings limited, is a company of equipment of reception, treatment and distribution of radio, tv and satellite signals and is capable of providing complete solution to installation market.
Thus, the backcalculated youngs modulus derived from modcomp should be compared with laboratorymeasured resilient moduli for the different pavement materials and subgrade soils. How your workers comp emod is calculated sfm mutual insurance. You will calculate the strain at critical points and an estimate of the remaining life of the pavement structure can then be determined which promotes good decision making about. In the 1970s and 1980s, they produced a line of 16 and 32bit minicomputers. Opc server for modcomp scadabase realtime scada application is 3rd party certified. The use of the backcalculation software in a batch mode for evaluating and analyzing deflection measurements from the ltpp database is an extremely important factor. Modcomp modified cost effective fibre based structures. Furthermore, the reflexwin software was used for analyzing the obtained radargrams. Precision of backcalculation analysis and independent. This software was originally developed by nightwing enterprises.
Layout calculations lies within office tools, more precisely calculators. Introduction numerical simulations can aid costeffective optimisation of manufacturing processes. Independent test lab opc certification is the process of ensuring that applications meet the standards specified by the opc foundation. To improve the accuracy of back calculation of soil modulus using the portable falling weight deflectometer pfwd, a viscoelastic method vem overcoming the limitations of the conventional linear elastic method lem was proposed. Annual list recognizes it solution providers with deep technical expertise and premier certifications billerica, mass. Modcomp is a wholly owned subsidiary of cspi nasdaq. Dvd5 or dvd9 intelligent size calculation will suggest a dvd if data will. Figure 1 shows a simplified flowchart of the back calculator program using the evercalc software package. Full depth reclamation of asphalt pavements using class f. Intended audience this manual and the information it contains is intended to be used by persons who have working knowledge of windows and have successfully completed. In all probability, these cvalues are dependent on the backcalculation software package used.
Cspi, a global technology company, today announced that its north america subsidiary, modcomp systems solutions, has been named to the channel companys crn r tech elite 250. Mar 21, 2018 if the claim is larger, typically involving lost time, there is a discounted rate for losses over a certain amount. The theoretical results show that 1 the use of multifrequency back calculation can lead to satisfactory convergence of layer moduli even when the number of receivers is less than the number of. Cornell university local roads program clrp publication 9410. The most popular version among layout calculations users is 1. The program is then tested against other backcalculation programs. Comparison of static and dynamic backcalculation of flexible. When it comes to sizing ductwork, you probably rely on a ductulator or its digital equivalent to determine the dimensions for your ducts. Midians intermodcalculator predicts the possible occurrence of intermodulation products that may cause receiver interference. Index determination of inplace elastic layer modulus. Instructional guide for backcalculation and the use of modcomp 3 version 3.
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