The document provides test data from sled tests conducted at Wayne State University (WSU) and Heidelberg on a THOR dummy. It includes impact velocities, forces, and accelerations measured from the dummy for tests conducted with rigid and padded sleds at velocities ranging from 6.8-8.9 m/s. The document also details how the load data was corrected to compensate for plate inertia and lists the masses of the test plates used.
The biomechanical demands of elite freestyle snowboard athletes - MPhil prese...John Noonan
Very little research is available in the field of elite freestyle ski and snowboarding. More specifically, the events of halfpipe and slopestyle and big air lack comprehensive evidence informing athletes and coaches what physical stresses are imposed on the athlete during training and competition. And secondly, what training should be completed to improve rider performance and also minimise the risk of injury in an extreme high risk sport.
With this in mind, this presentation provides an insight in a body of applied research completed by MPhil researcher, John Noonan. Incorporating findings from pilot testing and a key study, which presents biomechanics information collected from GB Park & Pipe athletes competing in freestyle snowsport competition. The findings characterise specific biomechanics demands and present considerations for coaches and scientists working with freestyle snowsport athletes.
Run, Change of Direction, Acceleration and Deceleration studied with Inertial...Mauro Testa
Run, change direction, acceleration and deceleration are basic movement in many sports, which forces are involved? How we can improve our athletes safety?
Muscular Adaptations to Depth jump Plyometric Training: Comparison of Sand vs...Fernando Farias
The purpose of this investigation was to compare the effects of sand
and land depth jump plyometric training on muscular performance in
men. Fourteen healthy men were randomly assigned to one of two
training groups: (a) Sand Depth Jump training (SDJ; N = 7) or (b) Land
Depth Jump training (LDJ; N = 7).
The biomechanical demands of elite freestyle snowboard athletes - MPhil prese...John Noonan
Very little research is available in the field of elite freestyle ski and snowboarding. More specifically, the events of halfpipe and slopestyle and big air lack comprehensive evidence informing athletes and coaches what physical stresses are imposed on the athlete during training and competition. And secondly, what training should be completed to improve rider performance and also minimise the risk of injury in an extreme high risk sport.
With this in mind, this presentation provides an insight in a body of applied research completed by MPhil researcher, John Noonan. Incorporating findings from pilot testing and a key study, which presents biomechanics information collected from GB Park & Pipe athletes competing in freestyle snowsport competition. The findings characterise specific biomechanics demands and present considerations for coaches and scientists working with freestyle snowsport athletes.
Run, Change of Direction, Acceleration and Deceleration studied with Inertial...Mauro Testa
Run, change direction, acceleration and deceleration are basic movement in many sports, which forces are involved? How we can improve our athletes safety?
Muscular Adaptations to Depth jump Plyometric Training: Comparison of Sand vs...Fernando Farias
The purpose of this investigation was to compare the effects of sand
and land depth jump plyometric training on muscular performance in
men. Fourteen healthy men were randomly assigned to one of two
training groups: (a) Sand Depth Jump training (SDJ; N = 7) or (b) Land
Depth Jump training (LDJ; N = 7).
2005 Pan American Sports Organization talk on individual pursuitacoggan1
Pan American Sports Organization International Coaching Seminar, hosted by USA Cycling on behalf of the United States Olympic Committee, Colorado Springs, CO
Effect of plyometric training on sand versus grass on muscle soreness and jum...Fernando Farias
The lower impact on the musculoskeletal
system induced by plyometric exercise on sand compared
to a firm surface might be useful to reduce the stress of
intensified training periods or during rehabilitation from
injury. The aim of this study was to compare the effects
of plyometric training on sand versus a grass surface on
muscle soreness, vertical jump height and sprinting ability
Longitudinal static stability of boeing 737 max 8Lahiru Dilshan
Recently there were two aircraft crashes, Lion Air and Ethiopian airline crash with 346 people with the flight crew. Ethiopian aircraft incident is currently under investigation and the final report will be published in near future and the Lion Air incident report was published.
Both these aircrafts were in the same type aircraft, Boeing 737 MAX 8, brand new aircraft that introduced very recently for commercial use. There several design modifications and several new systems were included for that aircraft by the designers and manufacturers.
Kinematic analysis of shot release of intercollegiate athletesSports Journal
The aim of the study was to assess the performance and to identify some of the most relevant kinematic
parameters defining the completion result in Glide shot-put technique. Two shot-put men athletes were
analyzed in this study from intercollegiate athletics championships. The video recording was made with
two stationary digital cameras (DSR-PD 170 DVCAM digital video camera, Sony Company Japan Ltd).
Using systematic video recording procedure Kinematic parameters such as, height of release, angle of
release, velocity of release, two frames Release velocity before (two frames), trunk angle at release,
horizontal release distance, projected distance, Angle between transverse axes of shoulder and hip,
Angular Velocity of Shoulder and Angular Velocity of Pelvis. The result of the study indicates the
possibility of increasing the horizontal length of the shot put, which would lead to greater distance. The
significance of this research is to obtain useful information for coaches and athletes, which will
contribute to the further improvement of techniques. It is necessary to conduct further and more detailed
studies of phases preceding the release, on which performance of the release phase and achievement of
the best possible results may depend.
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Performance Improvement of Recently Updated FE Dummy Models - Humanetics Altair
With both versions of full FE dummy model and simplified “express” dummy model being introduced to vehicle design applications, the need to improve dummy models predictability is sought by taking into account of accuracy, cpu cost, and efficiency. The Hybrid-III family dummy models have been updated according to users input and application needs. This paper will present the latest modifications and performance improvement of H305 and H350 dummy models on component level as well as full dummy assembly level.
Determination of strength and stress-strain relationships of a cylindrical specimen of reconstituted specimen using Unconsolidated Undrained (UU) Triaxial Test.
Learning Outcomes:-
1. With increase in confining stress, the load carrying capacity of the sample increased as evident from the curve showing higher peak deviatoric stress.
2. There is slight variation in the value of actual angle of failure plane (θf = 66.5°) and the value obtained from graph (θf)= 56.01°.
3. In this test, the failure plane is not forced, the stress distribution of failure plane is fairly uniform and specimen can fail on any weak plane or can simply bulge.
4. On plotting Mohr Circle, the failure envelope gave intercept of 155.29 kPa while the s-t plot gave 143.38 kPa.
OzLinc Industries Technical Data and Glossaryozlincau
OzLinc Industries supply a wide variety of pipe, hose, valves and fittings to the Australian mining, infrastructure, fire fighting and marine industries. We offer exceptional service and competitively priced, high quality products.
Specialized Transfemoral External Prosthetic Support PowerPoint PresentationGarret Senti
The Specialized Transfemoral External Prosthetic Support team's presentation on the progress made over a year of exploring the possibilities of a mechanical external support for a transfemoral prosthetic. The presentation describes the effort put into concepts and prototypes that would be utilized with a prosthesis which includes background information, initial prototype, final prototype, tests performed, results obtained, and the overall outcome of the project.
Note: Download if you want to view all animations and videos to enhance the knowledge about the team's prosthetic support.
2005 Pan American Sports Organization talk on individual pursuitacoggan1
Pan American Sports Organization International Coaching Seminar, hosted by USA Cycling on behalf of the United States Olympic Committee, Colorado Springs, CO
Effect of plyometric training on sand versus grass on muscle soreness and jum...Fernando Farias
The lower impact on the musculoskeletal
system induced by plyometric exercise on sand compared
to a firm surface might be useful to reduce the stress of
intensified training periods or during rehabilitation from
injury. The aim of this study was to compare the effects
of plyometric training on sand versus a grass surface on
muscle soreness, vertical jump height and sprinting ability
Longitudinal static stability of boeing 737 max 8Lahiru Dilshan
Recently there were two aircraft crashes, Lion Air and Ethiopian airline crash with 346 people with the flight crew. Ethiopian aircraft incident is currently under investigation and the final report will be published in near future and the Lion Air incident report was published.
Both these aircrafts were in the same type aircraft, Boeing 737 MAX 8, brand new aircraft that introduced very recently for commercial use. There several design modifications and several new systems were included for that aircraft by the designers and manufacturers.
Kinematic analysis of shot release of intercollegiate athletesSports Journal
The aim of the study was to assess the performance and to identify some of the most relevant kinematic
parameters defining the completion result in Glide shot-put technique. Two shot-put men athletes were
analyzed in this study from intercollegiate athletics championships. The video recording was made with
two stationary digital cameras (DSR-PD 170 DVCAM digital video camera, Sony Company Japan Ltd).
Using systematic video recording procedure Kinematic parameters such as, height of release, angle of
release, velocity of release, two frames Release velocity before (two frames), trunk angle at release,
horizontal release distance, projected distance, Angle between transverse axes of shoulder and hip,
Angular Velocity of Shoulder and Angular Velocity of Pelvis. The result of the study indicates the
possibility of increasing the horizontal length of the shot put, which would lead to greater distance. The
significance of this research is to obtain useful information for coaches and athletes, which will
contribute to the further improvement of techniques. It is necessary to conduct further and more detailed
studies of phases preceding the release, on which performance of the release phase and achievement of
the best possible results may depend.
Terminalpro Co., Ltd is exported from china, we can provide all kinds of fishing terminal tackle with reasonable price. Email us to get latest offer......
By william
Email: sales@termianlproco.com
Http://www.terminalproco.com
Performance Improvement of Recently Updated FE Dummy Models - Humanetics Altair
With both versions of full FE dummy model and simplified “express” dummy model being introduced to vehicle design applications, the need to improve dummy models predictability is sought by taking into account of accuracy, cpu cost, and efficiency. The Hybrid-III family dummy models have been updated according to users input and application needs. This paper will present the latest modifications and performance improvement of H305 and H350 dummy models on component level as well as full dummy assembly level.
Determination of strength and stress-strain relationships of a cylindrical specimen of reconstituted specimen using Unconsolidated Undrained (UU) Triaxial Test.
Learning Outcomes:-
1. With increase in confining stress, the load carrying capacity of the sample increased as evident from the curve showing higher peak deviatoric stress.
2. There is slight variation in the value of actual angle of failure plane (θf = 66.5°) and the value obtained from graph (θf)= 56.01°.
3. In this test, the failure plane is not forced, the stress distribution of failure plane is fairly uniform and specimen can fail on any weak plane or can simply bulge.
4. On plotting Mohr Circle, the failure envelope gave intercept of 155.29 kPa while the s-t plot gave 143.38 kPa.
OzLinc Industries Technical Data and Glossaryozlincau
OzLinc Industries supply a wide variety of pipe, hose, valves and fittings to the Australian mining, infrastructure, fire fighting and marine industries. We offer exceptional service and competitively priced, high quality products.
Specialized Transfemoral External Prosthetic Support PowerPoint PresentationGarret Senti
The Specialized Transfemoral External Prosthetic Support team's presentation on the progress made over a year of exploring the possibilities of a mechanical external support for a transfemoral prosthetic. The presentation describes the effort put into concepts and prototypes that would be utilized with a prosthesis which includes background information, initial prototype, final prototype, tests performed, results obtained, and the overall outcome of the project.
Note: Download if you want to view all animations and videos to enhance the knowledge about the team's prosthetic support.
Determination of strength and stress-strain relationships of a cylindrical specimen of reconstituted specimen using Consolidated Drained (CD) Triaxial Test.
1. A series of drained triaxial tests under four different initial states were conducted on Yamuna River sand. The results consist of simple stress-strain relation, change in volume behaviour were plotted.
2. Basic stress-strain relation with volume behaviour was presented in plot. The results for densely prepared sand samples show an expected behaviour. There is a significant difference in peak and residual deviatoric stress (q) as can be depicted form the plot.
3. With increase in confining stress, load carrying capacity of specimen increases.
4. Saturation value ‘B’ must be acquired to be more than 0.95 before starting the isotropic consolidation phase in CD test.
5. CD tests are performed at much slower strain rate as compared to CU tests for the same soil. The strain rate for CD test can be chosen approx. 8-10 times lower than the CU test.
6. It is important to have no pore water pressure generation throughout the shearing phase of CD test or in other words strain rate must be so small that pore water pressure must get dissipated quickly when specimen is subjected to compression loading in CD test.
7. In CD test, volumetric strain versus axial strain relationship shows contractive response for NC soils and dilative response for OC soils. (NC = Normally consolidated, OC = Over consolidated)
References:
1. IS: 2720 (Part 11):1993- Determination of the shear strength parameters of a specimen tested in unconsolidated undrained triaxial compression without the measurement of pore water pressure (first revision). Reaffirmed- Dec 2016.
2. IS: 2720 (Part 12):1981- Determination of Shear Strength parameters of Soil from consolidated undrained triaxial compression test with measurement of pore water pressure (first revision). Reaffirmed- Dec 2016.
3. ASTM D7181-11. Method for Consolidated Drained Triaxial Compression Test for Soils; ASTM: West Conshohocken, PA, USA, 2011.
The importance of biomechanics in sport flooringMauro Testa
How the work of biomechanic can affect, sport flooring production and R&D? How the biomechanic work can influence the safety in sport, avoiding injuries?
The Haag-Streit UK 2024 Price List contains Haag-Streit UK’s key products. Please find enclosed information and pricing for our best-selling range, including everything from a small budgie stick, to the World-leading Tonosafe disposable prisms, to gold standard Haag-Streit slit lamps.
1. Neck Test 2 (H28625-H28628)
Dummy channels according to SAE J211.
Wayne State University Tests (H28631-H28641)
Impact forces and accelerations at CFC 1000 Hz, and Dummy
channels according to SAE J211.
Heidelberg Tests (H28642-H28648)
Impact forces and accelerations at CFC 1000 Hz (according to
SAE J211).
For comparison to response requirements the data was
filtered using a 100 Hz FIR Filter.
3. Channel Frequency Class (J211)
Typical Test Measurements CFC (Hz)
Head
Head accelerations 1000
Neck
Forces 1000
Moments 600
Arm
Forces 600
Moments 600
Accelerations 600
Thorax
Spine accelerations 180
Rib accelerations 1000
Sternum accelerations 1000
Deflections 600
Lumbar
Forces 600
Moments 600
Pelvis
Accelerations 1000
Forces 600
Moments 600
Femur/Knee/Tibia/Ankle
Accelerations 1000
Forces 600
Moments 600
Displacements 180
4. The data presented gave plate loads and accelerations. The loads
were corrected to compensate for inertia by using the following
equations over the whole time span (after finding time 0
according to maximum loads).
Fe = Fi– (ma)plate
Example:
Fshoulder= 8443.32 N
ashoulderplate = 44.88 m2
/s
Mshoulderplate = 2.62 kg (mass of the plate + mass of bolts)
Fe = 8443.32– [(2.62)(44.88)] = 8325.73 N
The masses were found in an email from Hollie Pietsch.Test Plate Mass
WSU Shoulder 2.62
WSU Thorax 2.72
WSU Abdomen 2.8
WSU Pelvis 2.76
WSU Knee 1.44
Heidelberg Thorax 6.18
Heidelberg Pelvis 4.98
34. No Padding
*Broke Thorax Rib 1 IRTRACC, cut cable on Thorax Rib 1
Accel., lost Thorax Rib 2 Ay and shoulder pad stuck in
shoulder inner band in test H28640. Lost Upper Neck My
channel and Broke shoulder rib doubler (swapped w/ right
side) in test H28641. Test H28642 was cancelled to prevent
further damage.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
53.
54.
55. 15 psi padding on all plates for the 15 PSI
group.
23 psi padding on Shoulder, Thorax and
Abdomen plate, and 15 psi padding
on Pelvis and Knee plate for the 23
PSI group.
WSU 8.9 m/s Padded Sled
77. 23 psi Padding
*Arm rotates and lifts padding for
23psi tests - different from 15 psi tests.
78.
79.
80.
81.
82.
83.
84.
85.
86.
87.
88.
89.
90.
91.
92.
93.
94.
95.
96.
97.
98. 6.8 m/s Rigid Sled Test
Replaced broken Thorax Rib 2 Accel -
broken in high speed.
99.
100.
101.
102.
103.
104.
105.
106.
107.
108.
109.
110.
111.
112.
113.
114.
115.
116. Impact
Condition Measurement Units
Lower
Bound
Upper
Bound Test
Measure-
ment Score Test
Measure-
ment Score
Neck Test 2
6.7 G Sled
Impact
Peak Flexion Angle Degrees 40 50 H28625 H28626
Peak Bending Moment about AP
Axis at Occipital Condyles Nm 40 50 H28625 12.57 0 H28626 12.83 0
Peak Bending Moment about RL
Axis at Occipital Condyles Nm 20 30 H28625 3.04 0 H28626 3.51 0
Peak Twist Moment Nm 15 20 H28625 8.65 0 H28626 8.45 0
Peak Shear Force At Occipital
Condyles N 750 850 H28625 414.14 0 H28626 423.27 0
Peak Tension Force at Occipital
Condyles N 350 400 H28625 383.36 10 H28626 382.09 10
Peak PA Shear Force N 325 375 H28625 96.8 0 H28626 59.9 0
Peak Resultant Head Acceleration G 18 24 H28625 13.22 5 H28626 13.89 5
Impact
Condition Measurement Test
Measure-
ment Score Test
Measure-
ment Score
Test
Measure-
ment Score
Neck Test 2
6.7 G Sled
Impact
Peak Flexion Angle H28627 H28628
Average
Of Tests
H28625 –
H28628
Peak Bending Moment about AP
Axis at Occipital Condyles H28627 12.94 0 H28628 15.26 0 13.40 0
Peak Bending Moment about RL
Axis at Occipital Condyles H28627 4.34 0 H28628 2.97 0 3.47 0
Peak Twist Moment H28627 8.66 0 H28628 9.35 0 8.78 0
Peak Shear Force At Occipital
Condyles H28627 425.97 0 H28628 425.06 0 422.11 0
Peak Tension Force at Occipital
Condyles H28627 361.45 10 H28628 393.17 10 380.02 10
Peak PA Shear Force H28627 52.31 0 H28628 59.2 0 67.05 0
Peak Resultant Head Acceleration H28627 13.84 5 H28628 14.08 5 13.76 5
117. Impact
Condition Measurement Units
Lower
Bound
Upper
Bound Test
Measure-
ment Score Test
Measure-
ment Score
Thorax Test 5
6.8 m/s
Rigid Sled
Peak Lateral
Acceleration of
the Upper Spine G 82 122 H28642 58.44 5 H28643 66.11 5
Peak Lateral
Acceleration of
the Lower Spine G 71 107 H28642 53.62 5 H28643 53.76 5
Peak Lateral
Acceleration of
the Impacted Rib G 64 100 H28642 85.48 10 H28643 75.97 10
Thorax Test 6
8.9 m/s
Padded Sled
Peak Lateral
Displacement of
T12 mm 80 108 H28634 H28635
Thorax Test 6
8.9 m/s
Padded Sled
Peak Lateral
Displacement of
T12 mm 80 108 H28637 H28638
Thorax Test 5
6.8 m/s Rigid
Sled
Peak Lateral
Acceleration of
the
Upper Spine G 82 122 H28644 70.67 5
Average of
Tests
H28642-44
And
H28634-36
And
H28637-39
65.07 5
Peak Lateral
Acceleration of
the
Lower Spine G 71 107 H28644 51.73 5 53.04 5
Peak Lateral
Acceleration of
the
Impacted Rib G 64 100 H28644 82.58 10 81.34 10
Thorax Test 6
8.9 m/s
Padded Sled
Peak Lateral
Displacement of
T12 mm 80 108 H28636
Thorax Test 6
118. Impact
Condi
tion Measurement Units Lower Bound Upper Bound Test Measurement Score Test Measurement Score
Pelvis Test
10 6.8 m/s
Rigid Sled
Peak Lateral
Pelvic
Acceleration G 85 115 H28631 58.93 5 H28632 64.99 5
Pelvis Test
11
8.9 m/s
Rigid Sled
Peak Lateral
Pelvic
Acceleration G 111 151 H28640 110.03 5 H28641 113.28 10
Pelvis Test
12 8.9 m/s
15 psi
Padded Sled
Peak Lateral
Pelvic
Acceleration G 37 51 H28634 60.27 5 H28635 58.27 5
Pelvis Test
13 8.9 m/s
23 psi
Padded Sled
Peak Lateral
Pelvic
Acceleration G 65 89 H28637 39.47 0 H28638 37.45 0
Pelvis Test 7
6.8 m/s
Rigid Sled
Peak Pelvic
Force kN 6.4 7.8 H28642 2.05 0 H28643 2.04 0
Peak Pelvic
Acceleration G 63 77 H28642 65.89 10 H28643 63.78 10
Pelvis Test 10
6.8 m/s
Rigid Sled
Peak Lateral
Pelvic
Acceleration G 85 115 H28633 65.84 5
Average
Of Tests
H28631-33
And
H28640-41
And
H28634-36
And
H28637-39
And
63.25 5
Pelvis Test 11
8.9 m/s
Rigid Sled
Peak Lateral
Pelvic
Acceleration G 111 151 111.66 7.5
Pelvis Test 12
8.9 m/s 15 psi
Padded Sled
Peak Lateral
Pelvic
Acceleration G 37 51 H28636 57.38 5 58.64 5
Pelvis Test 13
8.9 m/s 23 psi
Padded Sled
Peak Lateral
Pelvic
Acceleration G 65 89 H28639 35.68 0 37.53 0
Peak Pelvic
119. Body Test No. & Test Description Test Weighting, Vi,j Test Biofidelity
Head Test 1 200 mm Rigid Drop 8 10.0
Head Test 2 1200 mm Padded Drop 4 N. M.
Head Biofidelity, B1 10.0
Neck Test 1 7.2 G Sled Impact 7 7.9
Neck Test 2 6.7 G Sled Impact 6 2.0
Neck Test 3 12.2 G Sled Impact 3 6.6
Neck Biofidelity, B2 5.4
Shoulder Test 1 4.5 m/s Pendulum 6 5.0
Shoulder Test 2 7.2 G Sled Impact 5 7.9
Shoulder Test 3 12.2 G Sled Impact 3 10.0
Shoulder Test 4 8.9 m/s Padded Sled 7 5.0
Shoulder Biofidelity, B3 6.4
Thorax Test 1 4.3 m/s Pendulum 9 10.0
Thorax Test 2 6.7 m/s Pendulum 9 10.0
Thorax Test 3 1.0 m Rigid Drop 6 10.0
Thorax Test 4 2.0 m Padded Drop 5 N. M.
Thorax Test 5 6.8 m/s Rigid Sled 7 7.5
Thorax Test 6 8.9 m/s Padded Sled 7 5.0
Thorax Biofidelity, B4 8.6
Abdomen Test 1 1.0 m Rigid Drop 7 8.6
Abdomen Test 2 2.0 m Rigid Drop 6 N. M.
Abdomen Test 3 6.8 m/s Rigid Sled 3 5.0
Abdomen Test 4 8.9 m/s Rigid Sled 3 5.0
Abdomen Test 5 8.9 m/s Padded Sled 7 5.0
Abdomen Biofidelity, B5 6.3
Pelvis Test 1 6.0 m/s Pendulum Impact 8 5.0
Pelvis Test 2 10.0 m/s Pendulum Impact 9 10.0
Pelvis Test 3 0.5 m Rigid Drop 4 5.0
Pelvis Test 4 1.0 m Rigid Drop 4 1.7
Pelvis Test 5 2.0 m Padded Drop 3 N. M.
Pelvis Test 6 3.0 m Padded Drop 5 N. M.
Pelvis Test 7 6.8 m/s Rigid Sled 8 4.4
Pelvis Test 8 8.9 m/s Rigid Sled 7 3.7
Pelvis Test 9 8.9 m/s Padded Sled 8 N. M.
Pelvis Test 10 6.8 m/s Rigid Sled 3 5.0
Pelvis Test 11 8.9 m/s Rigid Sled 3 6.1
Pelvis Test 12 8.9 m/s 15 psi Padded Sled 3 5.0
Pelvis Test 13 8.9 m/s 23 psi Padded Sled 7 2.8
Pelvis Biofidelity, B6 5.1
N.M. = Not Measured
WorldSID Prototype Rev.1 Overall Biofidelity, B 7.1
WorldSID Ratings
120. Region Ui Bi i Ui*Bi Ranking
Head 7 10 1 70
Neck 6 5.425457317 2 32.5527439
Shoulder 5 6.408730159 3 32.04365079
Thorax 10 8.618421053 4 86.18421053
Abdomen 8 6.25 5 50
Pelvis 8 5.09468006 6 40.75744048
Overall Biofidelity B 7.08041013 Good
Excellent 8.6=<-<10.0
Good 6.5=<-<8.6
Fair 4.4=<-<6.5
Marginal 2.6=<=<4.4
Unacceptable 0.0=<-<2.6