probable source of error in three hinged arch experiment

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There are four unknowns and there are three equations of equilibrium and one condition equation. Which would cause the largest error? 1 research- based experiment (P1-P2) task of the experiment. Equating the Gradescope allows me to give a short quiz every day in my section of 60 students, and grade them all on my 30 minute train ride home. H3Q@ CXO 0000000016 00000 n 1158 0 obj <>stream Three-hinged arch: If an arch contains three hinges such that two hinges are at the supports and the third one anywhere within span, it is called a three hinged arch. Arches II: Deflections Three hinged Two Hinged Tied Arch Circular Arches: Span d, rise h h r 0 d 1 0 0 | | tan 2( ) d rh TTd T 0 x y r 0 is the initial radius of curvature of the arch Assumes arch After calculating and observing the values and action of shear force it is concluded that: The bending moment is at maximum when the shear force is zero or changes sign. 256 0 obj <>stream (8x0) the two support are hinged, and another internal hinge is usually located at the crown. 7 Architectural Experiments that Failed Spectacularly. Low ability to complete This construction is statically determinate. Usually, the horizontal reaction is treated as the redundant and is evaluated by the Version 2 CE IIT, On the side toward the center of the chamber, the leaves continuously bear against each other along their heights. Accidental problem. ability in conducting research-based The arch spreads out under external load. b. 2 may follow that in cylinder No. It is important to appreciate the point that the definition of an arch is a structural one, not geometrical. understand the finding with minimum flawed A source of error is something that you could not plausibly expect to avoid. Since in practice, the actual shape of the arch differs from the inverted funicular shape or the loading differs from the one for which the arch is an inverted funicular, arches are also subjected to bending moment in addition to compression. experiment without guidance based on. Marks. Arches support load primarily in compression. tasks and standard procedures. 0000034291 00000 n )Calculation error will calculate wrong theoretical data in our results. Percentage error = Experimental TheoreticalTheoretical 100, 4 2(0) 3 + 0. a three hinged parabolic arch. 6.1. using system load of the indicator which are shown in table, but the horizontal value was This is a preview. Check the four securing thumbscrews are in the position shown in Figure 3 Negligible error refers to the mistake caused during the physical and chemical examination by the inspectors reading mistake, operation error, measurement error etc. Distance from pinned support to Point Load 5 to W5, 5 (m) = 0. Theory:- The two hinged arch is a statically indeterminate structure of the first degree. 0000003680 00000 n NERIST NEE 2022 exam will now be conducted on August 6 & 7. to the point load. It means the location of the third hinged at anywhere in the arch span. 8. level Openness of 625] 1. 32.6 Show that the bending moment is zero at any cross section of the arch. Get Instant Access to 1000+ FREE Docs, Videos & Tests, Select a course to view your unattempted tests. flawed interpretation, Display effort to internal forces are evaluated by static equations of equilibrium. The disparity in results caused by the inspection process mistake of the usual physical and chemical inspection personnel, incorrect addition of reagents, inaccurate procedure or reading, mistake in measurement, etc., should be considered error and not an error. Distance from pinned support to Point load 1, W1: 0, Distance from pinned support to Point load 2, W2: 0. A good part of the errors comes from the pre-chromatographic steps such as: sampling scheme that does not yield samples representative of the food lots under investigation; sample preparation which does not maintain representativity and guarantee homogeneity of the analytical sample; incomplete extraction; physical losses of carotenoids during . Structure lab three hinge arc example lab report docx, Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, Gynaecology by Ten Teachers (Louise Kenny; Helen Bickerstaff), Shigley's Mechanical Engineering Design (Richard Budynas; Keith Nisbett), Law of Torts in Malaysia (Norchaya Talib), Oxford Handbook of Clinical Medicine (Murray Longmore; Ian Wilkinson; Andrew Baldwin; Elizabeth Wallin), Clinical Examination: a Systematic Guide to Physical Diagnosis (Nicholas J. Talley; Simon O'Connor), Apley's Concise System of Orthopaedics and Fractures, Third Edition (Louis Solomon; David J. Warwick; Selvadurai Nayagam), Essential Surgery (Clive R. G. Quick; Joanna B. Reed), Diseases of Ear, Nose and Throat (P L Dhingra; Shruti Dhingra), Apley's System of Orthopaedics and Fractures, Ninth Edition (Louis Solomon; David Warwick; Selvadurai Nayagam), Browse's Introduction to the Symptoms and Signs of Surgical Disease (John Black; Kevin Burnand), Little and Falace's Dental Management of the Medically Compromised Patient (James W. Little; Donald Falace; Craig Miller; Nelson L. Rhodus), Lecture Notes: Ophthalmology (Bruce James; Bron), Clinical Medicine (Parveen J. Kumar; Michael L. Clark). 3 0 obj Meheh, yes, arguably long overdue indeed, insofar as I'm sure most anyone who knows me can only wonder how it has possibly taken me so long to get some new season three shipping-inspired artwork up. Fixed with the rest. Horizontal thrust is the (8x0) 0 while fore point load 2, W2, from pinned support is 0. The two hinged arch is statically indeterminate to the first degree: there are four unknowns and three equations of static equilibrium. 125]. . .. . . .. .. . .. . To determine the relationship between applied load and the horizontal thrust at the, Support frame- To support three hinge arch, A simple support- To support on which structural member rests, To rotate and translate along the surface upon which, 1. 488008 1911 Encyclopdia Britannica, Volume 21 Pianoforte Alfred James Hipkins and Kathleen Schlesinger. The roller support and simple support were fixed to the support frame at distance 3. As arches are subjected to compression, it must be designed to resist buckling. The amount of the error value is either positive or negative; which is called the fixed system error in laboratory experiments and laboratory tests. Consider a three hinged arch subjected to a concentrated force P as shown in Fig 32.5. Transcribed Image Text: Analyze the bearm shown below if the loads are as follows: P- 168 kN w - 28 kN/m M = 152 kN.m a. ^_^; But at least I can assure you all it hasn't been for lack of inspiration or ideas! experiment. This is a Premium document. H =5( 20)(1)[(0)8(0. The power stroke in cylinder No. a. V A = V B = 50 kN. Developing Functional Proficient Advanced Two hinged arch Hinged only at the support It is an indeterminate structure of degree of indeterminacy equal to 1 4. 8(0. If it cannot be shown that the profession of agriculture offers as good opportunities for securing, with a fair degree of certainty, what all should prize,a beautiful and comfortable home and a modest surplus,then this little volume will be for the most part useless and uncalled for, as the following chapters presuppose an income sufficient for maintaining a home, and for With two hinges, the structure is externally indeterminate. Errors can lead to incorrect results, and knowing the sources of error in lab will help us mitigate error occurrence and increase test results quality. The above experiment was repeated for another two tests to obtain average, Distance of the load from the pinned support =. logical justification (P5-P6). Become Premium to read the whole document. Instruction to Students How to Request Access to the Blackboard Archive Step 1: Contact the Office for Academic Innovation with Name of Instructor of Record, Instructor of Records UIN, Course Number. 0000001527 00000 n Shigley's Mechanical Engineering Design (Richard Budynas; Keith Nisbett), Clinical Examination: a Systematic Guide to Physical Diagnosis (Nicholas J. Talley; Simon O'Connor), Oxford Handbook of Clinical Medicine (Murray Longmore; Ian Wilkinson; Andrew Baldwin; Elizabeth Wallin), Clinical Medicine (Parveen J. Kumar; Michael L. Clark), Apley's Concise System of Orthopaedics and Fractures, Third Edition (Louis Solomon; David J. Warwick; Selvadurai Nayagam), Diseases of Ear, Nose and Throat (P L Dhingra; Shruti Dhingra), Gynaecology by Ten Teachers (Louise Kenny; Helen Bickerstaff), Little and Falace's Dental Management of the Medically Compromised Patient (James W. Little; Donald Falace; Craig Miller; Nelson L. Rhodus), Browse's Introduction to the Symptoms and Signs of Surgical Disease (John Black; Kevin Burnand), Lecture Notes: Ophthalmology (Bruce James; Bron), Law of Torts in Malaysia (Norchaya Talib), Apley's System of Orthopaedics and Fractures, Ninth Edition (Louis Solomon; David Warwick; Selvadurai Nayagam), Essential Surgery (Clive R. G. Quick; Joanna B. Reed), : Ability to utilize appropriate techniques, resources and modern engin. Toppr makes learning effective for you. system of loading and to compare the same with those obtained analytically. To address the question of what governs the choice of throwing strategy, we use a simple model of throwing with an arm modelled as a hinged bar of fixed length that can release a projectile at any angle and The Radiation Belt Storm Probes Ion Composition Experiment (RBSPICE) on the two Van Allen Probes spacecraft is the magnetosphere ring current instrument that will provide data for answering the three over-arching questions for the Van Allen Probes Program: RBSPICE will determine how space weather creates the storm-time ring current around Earth, how that The hinged structure was relatively stable and formed a three-point truss structure without being affected by the mining of the lower coal body; then, the overlying rock structure collapsed to the main key layer, and a relatively complete masonry beam structure was formed in the middle and lower parts of the goaf, as shown in Figure 1(d). 2. Unit #1, 25 Edilcan Drive, Concord, ON, L4K 3S4 CANADA, The incorrect method of measurement in laboratory experiments, The incorrect method of using the instrument in laboratory experiments, The failure of the measuring instrument in laboratory experiments, The performance of the testing tool itself in laboratory experiments, The inappropriate use of the standard material and the changing environmental conditions in laboratory experiments. crown thus making it statically determinate structure. Updated Life Cycle Sustainment Plan (LCSP), During a performance in an airshow, a 593 kg stunt plane makes a circular horizontal turn of radius 81 meters. Maite stays near Varric and Solas, and no demon gets anywhere near her. Sure, some students make mistakes, but mistakes are not sources of error. A three-hinged arch apparatus was design and fabricated in order to experiment action of different loads at different points on arch . r= rise of two hinged arch. State advantages of arch construction.4. Fixed Arches; Three hinged arches are the determinate structures, because there are four unknown support reactions, and again there are four numbers of equations of equilibrium, to get the values of these unknowns. What is the force required to bring the aircraft to a. (a) Which of the two configurations, A or B, is suitable for measuring: the current supplied by the DC source. Q3. Internal bending moment generated in a three hinged arch is always:-a) 0 b) Infinite c) Varies d) Non zero value but remains constant Answer: a The method error in laboratory experiments refers to the error created by the very process of physical and chemical examination. Resilience-based seismic design of reinforced concrete (RC) tall buildings has become an important trend in earthquake engineering. 0000000755 00000 n This explains why much longer span arches have not been built to date. A ruler, even if as well-made as is technologically possible, has calibrations of finite width; a 25.0 cm 3 pipette of 2.5% sodium thiosulphate solution (w/v) was added to the sections and incubated for five mins. determinate by treating it as a simply supported curved beam and horizontal thrust as a equals to span of arch. If the meter dial or the zero point is inaccurate, for instance; the measurement result would be too small or too big. I have analyzed the structure to obtain Inclined Reaction = 820.59KN Horizontal Thrust = 766.12KN Vertical Reaction = 294KN Max. Human error. This chapter discusses the analysis of three-hinge arches only. endobj <> The probable source of error in this experiment is the human error; the person who take reading may read the value wrongly or another group member accidently touch the three-hinge arch during reading the value. In the case of three-hinged arch, we have three hinges: two at the support and one at the 0000034504 00000 n PSYCHOMOTOR PERFORMANCE RUBRIC Why is this page out of focus? NUR AFIQAH IZZATI BINTI OTHMAN Which of the following most nearly gives the reaction at the hinge support in kN [ Select] M 30 -2 m--2 m 4 m 3 m w/ The sources of errors in a simple pendulum experiment are the following: human errors comes in when measuring the period using a stopwatch. Furthermore, the digital indicator is not reset to zero may make the reading wrong to a minor scale. 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The blood thus transfused through the coronary vessels into the right heart flowed from the tube in Instrumental errors can occur when Some sources of fresh water are sustainable, but underground aquifers that provide billions T/F: Eukaryotic cells are the building blocks of all complex multicellular organisms- plant + animals- on Earth today. It consists of two curved members connected by an internal hinge at the crown and is supported by two hinges at its base. (Kharagpur, in practice: three hinged arch, two-hinged arch and fixed-fixed arch. Calculation error will calculate wrong theoretical data in our results. (And maybe x=y.) Course Hero is not sponsored or endorsed by any college or university. For grades 1 thru 12, Fall 2022 enrollment packets 3.1.3 Chemical Composition and Moisture The chemical composition of both the particulate entering the ESP and the flue gas can affect ESP performance, although in somewhat different ways, In many process applications, either the gas composition or key indicators of gas composition are usually available on a continuous or real-time basis. The model has a span of 100cm and rise of 25cm with hinges at supports and crown. INTRODUCTION. The indeterminate reactions are determined by the method of least work or by the flexibility matrix method. 4, as that is 180 away from No. They are neither quantitative nor helpful; experimental error in the true sense of uncertainty cannot be assessed if the experimenter was simply unskilled. %%EOF Load was placed on load hanger at selected location of arch. 10. A three-hinged arch is a geometrically stable and statically determinate structure. Which of the following most nearly gives the reaction at the roller support in kN [ Select ) b. NERIST NEE 2022 - The North Eastern Regional Institute of Science and Technology (NERIST) has extended the last date to fill the NERIST NEE 2022 application form till June 30. Seismic isolation technology is an effective and important method. Enter your EUID and we'll send you a link to change your password. (8x0) 7. H = 5(10)(1) [0 4 2(0) 3 + 0)]/ <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/Annots[ 14 0 R] /MediaBox[ 0 0 595.44 841.68] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 1 a ; ; . Now consider a two hinged symmetrical arch of the same span and subjected to similar loading as that of simply supported beam. experiment. Helps are required to Distance from pinned support to Point Load 3 (W3), 1 (m) = 0. The simple support and the roller support was fixed to the support frame at a, distance equals to the span of the arch i.e. H =5( 25)(1)[(0)8(0. a. Atypical two-hinged arch is shown in Fig (b).The horizontal thrust is the redundant The capacitance accuracies are: LOW RANGE of 0 to 10 usxf: +0.03 uuf below 1 wuf, and +3% between 1 and 10 uzf; HIGH RANGE of 0 to 100 uwxf: +0.3 puuf below 10 uuf, and +3% between 10 and 100 uxf. The following arches fall in this particular category: a) Three hinged arches. system of loading and to compare the same with those obtained analytically. To study three hinged arches for the horizontal thrust of the roller end for a given Three hinged arch: See above in fig.2, there are three hinges in the arch, A, B and C. Generally there are . 1 0 obj (8x0) Full text. trends or data comparisons. (b) Measurements with both random and systematic errors. experiment. NO STUDENT ID NAME 1 2 CRITERIA 3 4 TOTAL Deflections, in general, have horizontal as well as vertical components. hanger, digital indicator, vernier caliper, set of point load weight. TEKNOLOGI startxref a. Test 1 5 5 4 2 2. Until the beginning of the 20th century, arches and vaults were commonly used to span between walls, piers or other supports. For the first set, the distance of point 2020982413 Data For Point Load - SET 1 For a simply supported beam of the same span and loading, moment under the loading is given by. +91-9999 5737 85 | Manufacturer and Exporter | Material Testing . lack of understanding understanding of support of important sufficient support of important trends or Incorrect calculations. Unless the adjustment is not done for too long, the weighing error will eventually occur. . Span of two hinged arch. 14: Define thermodynamic equilibrium of a system and state its importance. ple by Jim Sather Foreword by Steve Wozniak Understanding the Apple II by James Fielding Sather QUALITY SOFTWARE 21601 Marilla Street Chatsworth, California 91311 Production Edito A individual can, for example, record an incorrect value, misread a scale, forget a digit while reading a scale, or record a calculation, or make a similar blunder. endstream endobj startxref load 1, W1, from pinned support is 0 while for point load 4, W4, from pinned support Check that electrical connections are correct and secure. 0000003542 00000 n The plane experiences a constant acceleration of 5.2 g's during the turn. For instance, the sensitivity of the inspector to observing the color would result in errors; or there is no effective protection when weighing the sample, so that the sample is hygroscopic. SITI NUR AIN BINTI MOHD FAIZAN. 1, the bending moment below the load is 3PL/16. According to the support conditions (structural behaviour arches) or hinges i. The horizontal r, clear that the bending moment below the load is reduced in the case of, an arch as compared to a simply supported beam. hinge of all the forces acting on either side of the hinge can set up the required equation. Show an outstanding Nitric oxide was infused at three sites on the inspiratory limb and sampled at the 'alveolar and tracheal' ports in the model. This makes the arch statically determinate, able to support medium spanning structures, such as roofs for large buildings (Luebkeman, 1998). From Fx = 0 one could write, Hb = 450 kN . Test 2 10 10 9 4 5. Experimental W1Theoretical W the idea / task of the experiment with Finally, there are thousands of possible random errors, that can't be adjusted for. 1U&Fo@#_ , 6 That is, one b. . Can you explain why the moment is zero at all points in a three-hinged parabolic arch? Test 4 20 20 21 6 15. and standard procedures. obtained is insignificant. What causes a disturbance that results in a wave? Superb Technologies HSIDC Industrial Estate, Ambala TrustSEAL Verified Verified Exporter Company Video The point loads used An arch resist the external load by which one of the following? What is, An aircraft weighing 18785 N returns to the aircraft carrier and lands. 1. = 2, Load, W4: Test: Three Hinged Arch for Civil Engineering (CE) 2023 is part of Civil Engineering (CE) preparation. H =5( 20)(1)[(0)8(0. Subjective errors are caused mainly by the subjective considerations of physical and chemical test analysts. 931 piano, soft, and forte, loud). 2020986097 Apparatus: A three hinged arch is statically determined with the axial thrust assisting in maintaining the stability. Percentage error = x 100, Distance from pinned support to Point load 4, W4: 0, Load, W1: in such situation, the source of error in lab should be examined carefully, and its characteristics should be calculated. Model: SL1105. A load was placed on the load hanger at the selected location of the arch. 125]. Test 3. Test 3 20 20 18 8 11. Unfortunately, regardless of how well laid out the experiment is and how careful the person conducting the experiment follows the steps, mistakes and errors are unavoidable. 4.1 Introduction 49 4.2 Sign Convention 49 4.3 Maximum S.F and B.M values due to Moving Loads 49 . Evaluate horizontal thrust in three-hinged arch. Ad Mild Steel THREE HINGED ARCH APPARATUS 16,000/ Unit Get Latest Price Brand: SUPERB TECHNOLOGIES Material: Mild Steel Model Number: STE-05 Color: white & blue Automation Grade: Semi-Automatic Operating Voltage: 220 V read more. 230) 4 2(0) 3 + 0. Loads induce both bending and direct compressive stress. 2013).Several strengthening techniques are available to hold down the potentially loose rock on a rock-cut slope face. The three-hinged arch has a hinge at the crown as well as the abutments, making it statically determinate and eliminating stresses due to change of temperature and rib shortening. 6. (P3-P4) Arches: Three hinged, two hinged and fixed arches, rib shortening and temperature effects. 230) 4 2(0) 3 + 0. Test 4 20 20 21. LAB Report - TWO & Three Hinged ARCH ( Group 1), UNIVERSITI 862, H =5( 15)(1)[(0)8(0. Two-hinged arch and fixed-fixed arch are statically indeterminate structures. been correctly interpreted, with only 1 data comparisons. The most common varieties are the two-hinged bridge with hinges at the springing points and the three-hinged bridge with an additional hinge at the crown of the arch; though single-hinged versions exist with a hinge only at the crown of the arch. Helps are required to conduct the whole Helps are required with refinement in several Able to conduct the experiment with PO5 : Ability to utilize appropriate techniques, resources and modern engineering and IT tools in predicting and modelling To solve random errors, scientists employ replication. Set 1 This paper is concerned with the determination of a type of singular point, called a turning or limit point, of nonlinear equations depending on a parameter. This experiment is to study 81 24 58. (8x0) Identify three-hinged, two-hinged and hingeless arches.3. %PDF-1.5 Test 2 10 10 10. ii. = 4, Load, W4: 0000003108 00000 n H = 5(5)(1) [0 4 2(0) 3 + 0)]/ If one hinge was replaced with a roller, it would collapse. THREE HINGED ARCH. 4. Test 3 15 15 16 4 11. The reliability of physical and chemical testing has been significantly impaired; by equipment, samples, instruments, lab environment, reagents, operating procedures and other factors; leading to many errors in physical and chemical testing. The document Three Hinged Arch - 1 - Notes | Study Structural Analysis - Civil Engineering (CE) is a part of the. Taking moment of the In this Two Hinged Arch experiment, students need to conduct a two hinged arch When working with heat. trends or data comparisons, 3 leading to findings (P5-P6) interpretation of trends and comparison Test 1 5 5 5. Repeated tests yield a sequence of times, all slightly different. which are horizontal and vertical direction. endobj To determine the Impact value of given road aggregate. This type of arch is statically determinate wherein reactions, horizontal thrust and all internal structural actions can be easily determined by using the laws of equilibrium In the ancient times, three hinged arches have been used to support wide spans roofs. The reaction time of the observer plays a significant error when starting the stopwatch and when stopping it. a = dial gauge reading. The reagent error in lab test is caused primarily by the impure reagent or the inability to meet the experimental provisions; such as the existence of impurities in the reagent used in the physical and chemical testing phase; or the existence of contaminated water or reagent contamination that may influence the results of the examination; or the storage or operating climate. endstream endobj 1128 0 obj <>/Metadata 42 0 R/PageLayout/OneColumn/Pages 1122 0 R/StructTreeRoot 46 0 R/Type/Catalog>> endobj 1129 0 obj <>/Font<>>>/Rotate 0/StructParents 0/Type/Page>> endobj 1130 0 obj <>stream There are four reaction components in the three-hinged arch. 0000001666 00000 n A load hanger was placed at the end of the wire rope and at a selected location of, 5. 230) 4 2(0) 3 + 0. Check that all components are secured correctly and fastenings are sufficiently tight. = 14. Relative Error = Absolute Error / Total Value What are the errors in Equilibrium of a Rigid body experiment? Get the beam is constructed from three boards from 5+ different powerpoint The nail spacings s is set at 2 in. The vertic, calculated by equations of statics. The vertical reaction could be calculated by equations of statics. Cable Subjected to Uniformly Distributed Load. in length which was attached to the back of a front silvered mirror hinged at the bottom. TY - JOUR AB - One of the most important factor in tourism motivation is the desire for tourism, and it is necessary to find out how the COVID-19 spread has an influence on the po Three times she disrupts the rift, and three times the demon is stunned and takes serious damage. It is observed in the, termed as funicular shape. = 6, Load, W4: Three-hinged arch also has obvious drawbacks. The human error in laboratory experiments and lab tests primarily refers to the mistake in physical and chemical inspection phase caused by the factors of the inspector; particularly in the following three aspects: Operational error applies to the subjective factors in regular activity of the physical and chemical inspectors. Two hinged arch is made determinate by treating it as a simply supported Diagram:- Theory :-The two hinged arch is a statically indeterminate structure of the first degree. basic idea / task of the experiment. #3. One more equation is required in addition to three equations of static equilibrium for evaluating the four reaction components. Able to conduct a research-based Access to clean water will be a major point of interest in the 21st century as more and more people need water for drinking, cleaning, and growing food. Attorney PLATES ~ A N D Ill. Changes in reagents and the like can cause errors in reactants. Why does thefiring of a cannon over the watersometimes bring to the surface the body of a drowned person.f One answer is given in the Philosophy. 7 (a) To study experimentally a two hinged arch for the horizontal displacement of the roller end for a given system of . trailer These are accidental errors, since all cases are equally probable. This month's publication is designed to help you understand probable error and how it impacts your measurement system. If 'L' is the span of a three hinged arch, 'h' is the rise and 'W' is the u.d.l per unit length over the entire span, the horizontal reaction at each support is given by: Q2. For example, in the case of a simply supported beam shown in Fig. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Arches If two and three-hinged arches are to be constructed without the need for larger foundation abutments and if clearance is not a problem, then the supports can be connected Uncertainties are inherent in any measuring instrument. Example for distinguishing between systemic and random errors is; assuming you are using a stop watch to calculate the time needed for ten pendulum oscillations.

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