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Letteratura scientifica selezionata sul tema "Lifting and carrying"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2024

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Articoli di riviste sul tema "Lifting and carrying"

1

Purwaningrum, Lu’lu’, Kyotaro Funatsu, Cucuk Nur Rosyidi e Satoshi Muraki. "Considering Children’s Methods of Grasping and Carrying Elementary School Chairs for Easy Carrying, Lifting, and Turning". SAGE Open 7, n. 1 (gennaio 2017): 215824401667803. http://dx.doi.org/10.1177/2158244016678037.

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Carrying, lifting, and turning chairs improve learning activities in schools, which leads to higher quality education. However, it has been shown that elementary school chairs in Indonesia are too heavy for children aged 6 to 9 to easily lift and carry. The present study aimed to investigate children’s methods of carrying chairs as well as lifting and turning them onto desks. Forty-two children (aged 6-9), including 17 Indonesians (6 boys, 11 girls) and 25 Japanese (12 boys, 13 girls), participated in the study. The experiment used three elementary school chairs (one Indonesian, two Japanese) and two desk types (standard and tall). The most popular method for carrying a chair was to carry it in front of the body with the chair in a lateral position (75%). In all carrying methods, participants showed a preference for grasping two particular points to hold the chair. Children lifted and turned chairs most successfully when they used this popular grasping pattern. The carrying method and the popular grasping pattern for carrying, lifting, and turning chairs need to be considered when redesigning heavy Indonesian elementary school chairs to improve the ease of transport without decreasing the weight.

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2

Johnson, Steven L., e David M. Lewis. "A Psychophysical Study of Two-Person Manual Material Handling Tasks". Proceedings of the Human Factors Society Annual Meeting 33, n. 11 (ottobre 1989): 651–53. http://dx.doi.org/10.1177/154193128903301105.

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Over the past ten years, there has been extensive work performed on the development of guidelines for manual material handling tasks both within individual companies and within governmental agencies. However, these guidelines address only individual, one-person lifting tasks. In both manufacturing and service industries, there are many team lifting tasks, such as furniture moving and at loading docks. This paper presents the results of a study that used psychophysical methods to investigate lifting tasks that require two workers. In addition to simple lifting tasks, the study also compared one and two-person carrying tasks. The results of the study indicate that subjects' judgments of their lifting capability are significantly greater for the two-person lifts than for the individual lifts. The same relationship was observed for the carrying tasks. These results and conclusions are important to consider when it is necessary to extrapolate from the conditions used in the development of manual material handling guidelines to other situations such as team lift carrying tasks.

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3

Agustina, Fitri, Nachnul Ansori, Trisita Novianti, Ernaning Widiaswanti e Ravida Ayu Anggraeni. "Risk Evaluation of Musculoskeletal Disorders and Design of Lifting-carrying Facilities". PROZIMA (Productivity, Optimization and Manufacturing System Engineering) 7, n. 1 (24 marzo 2023): 1–10. http://dx.doi.org/10.21070/prozima.v7i1.1605.

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There are main activities of the worker in UD Askan such as splitting the fish, carrying, and lifting the tubs. Work activities are done manually and the production process continually undergoes. The frequency of activity (15 cycles) in a day causes the risk of fatigue, injury, and Musculoskeletal Disorders (MSDs). Evaluation of the work posture of four workers by Ovako Working Posture Analysis System (OWAS) and Job Strain Index (JSI) methods showed high risk in the process of lifting and carrying a tank. The previous posture caused the worker to bend forward, both legs standing or squatting with both knees, and walk by carrying a tub. The results recommend solving soonest due to the danger to the musculoskeletal. The recommendation shows that lifting methods are required and the design of lifting and transporting equipment is needed. The evaluation posture by OWAS show that the process of carrying a tank is 3 level (immediate repair because it is harmful to the musculoskeletal), and after improvement, it is 1 level (not harmful to the musculoskeletal). Then, JSI indicates any improvement from the 3 levels (posing a hazard) to level 1 (safe work).

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4

Kadam, Shivam, Piyush Dharmasare, Shubham Ganjale e Nilam Ghuge. "Toolkit Carrying Drone For Maintenance Of High Altitude Transmission Lines". ITM Web of Conferences 44 (2022): 02005. http://dx.doi.org/10.1051/itmconf/20224402005.

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Research and analysis on drones is increasing rapidly nowadays in various fields of application. One of the major problem which arises in the drone application is its ability of lifting heavy loads when attached to it that requires proper design and selection of the required type of drone for its ability to carry out various missions including lifting a heavy load. One of the important type of drone that is widely used is hexacopter drone. This paper shows the design of hexacopter drone that lifts the toolkit which has to be delivered for maintenance of transmission lines at high altitude. It is designed with the help of calculation and analysis of the criteria and constraints by the aid of software. The calculations shows the ability of hexacopter drone of lifting a toolkit and delivering it to the location at higher altitude.

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5

Harari, Yaar, Avital Bechar e Raziel Riemer. "Spinal Moments During Continuous Sequential Lifting, Carrying, and Lowering". Proceedings of the Human Factors and Ergonomics Society Annual Meeting 61, n. 1 (settembre 2017): 991–92. http://dx.doi.org/10.1177/1541931213601729.

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6

Taboun, S. M., e S. P. Dutta. "Energy cost models for combined lifting and carrying tasks". International Journal of Industrial Ergonomics 4, n. 1 (luglio 1989): 1–17. http://dx.doi.org/10.1016/0169-8141(89)90045-0.

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7

Takei, Yutaka, Eiji Sakaguchi, Koichi Sasaki, Yoko Tomoyasu, Kouji Yamamoto e Yasuharu Yasuda. "Use of the Airstretcher with dragging may reduce rescuers’ physical burden when transporting patients down stairs". PLOS ONE 17, n. 9 (14 settembre 2022): e0274604. http://dx.doi.org/10.1371/journal.pone.0274604.

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Transporting patients down stairs by carrying is associated with a particularly high fall risk for patients and the occurrence of back pain among emergency medical technicians. The present study aimed to verify the effectiveness of the Airstretcher device, which was developed to reduce rescuers’ physical burden when transporting patients by dragging along the floor and down stairs. Forty-one paramedical students used three devices to transport a 65-kg manikin down stairs from the 3rd to the 1st floor. To verify the physical burden while carrying the stretchers, ratings of perceived exertion were measured using the Borg CR10 scale immediately after the task. Mean Borg CR10 scores (standard deviation) were 3.6 (1.7), 4.1 (1.8), 5.6 (2.4), and 4.2 (1.8) for the Airstretcher with dragging, Airstretcher with lifting, backboard with lifting, and tarpaulin with lifting conditions, respectively (p < 0.01). Multiple comparisons revealed that the Airstretcher with dragging condition was associated with significantly lower Borg CR10 scores compared with the backboard with lifting condition (p < 0.01). When the analysis was divided by handling position, estimated Borg CR10 values (standard error) for head position were 4.4 (1.3), 2.9 (0.9), 3.2 (0.8), and 4.0 (1.1) for the Airstretcher with dragging, Airstretcher with lifting, backboard with lifting, and tarpaulin with lifting conditions, respectively, after adjusting for participant and duration time (F = 1.4, p < 0.25). The estimated Borg CR10 value (standard error) for toe position in the Airstretcher with dragging condition was 2.0 (0.8), and the scores for the side position were 4.9 (0.4), 6.1 (0.3), and 4.7 (0.4) for the Airstretcher with lifting, backboard with lifting, and tarpaulin with lifting conditions, respectively, after adjusting for participant and duration time (F = 3.6, p = 0.02). Transferring a patient down stairs inside a house by dragging using the Airstretcher may reduce the physical burden for rescuers.

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8

Noviantoro, Feri, e Indraswari Kusumaningtyas. "Analisa Perbandingan Kekuatan Profil Padeye Berdasarkan Desain Standara DNV dan BS-EN Studi Kasus: Cargo Carrying Unit". Journal of Mechanical Design and Testing 3, n. 2 (27 dicembre 2021): 103. http://dx.doi.org/10.22146/jmdt.60379.

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Abaqus Manual Book Version 6.8 (2008) – Getting started with Abaqus (Interactive Edition)ASTM A36/A36M - 14 (2015) – Standard Specification for Carbon Structural SteelBS EN 12079-1:2006 – Offshore containers and associated lifting sets — Part 1: Offshore containers — Design, manufacture and marking.BS EN 12079-2:2006 – Offshore containers and associated lifting sets — Part 2: Lifting sets — Design, manufacture and marking.BY Y. HIGASHIDA, J. D. BURK, AND F. V. LAWRENCE, JR. (1978). StrainControlled Fatigue Behavior of ASTM A36 and A514 Grade F Steels and 5083-0 Aluminum Weld Materials.Bukaka. (2010). Provision of Cargo Carrying Unit Project.Chevron. (2009). MCA – Lifting and Rigging Standard. Houston: Chevron Corporation.Crosby Catalogue (2003) – Crosby Bolt-Type ShacklesDaniela Scorza, Andrea Carpinteri, Sabrina Vantadori (2018). Tension failure assessment at lug hole edges. Department of Engineering & Architecture, University of Parma.DNV No. 2.7-1 2013 – Standard for Certification of Offshore Containers.Gérald Portemont, Julien Berthe, Alain Deudon, François-Xavier Irisarri (2018). Static and dynamic bearing failure of carbon/epoxy composite joints. DMAS, ONERA, University Paris Saclay.Henny Gusti Pramita, Handayanu dan Yoyok Setyo H. (2013). Analisis Struktur Padeye pada Proses Lifting Jacket Empat Kaki dengan Pendekatan Dinamik. Jurusan Teknik Kelautan, Fakultas Teknologi Kelautan, Institut Teknologi Sepuluh Nopember (ITS).Hikmat Saaid Saleh (2016). Ultimate capacity of pad eyes in lifting operations. Faculty of Science and Technology, University of Stavanger.Hoover Ferguson Group, Inc (2018) – Definition of Cargo Carrying UnitsIqbal Gayuh R.M.S, Yeyes M, dan Yoyok S.M. (2016). Analisis Keandalan Struktur Padeye Berdasarkan Konfigurasi Rigging pada Lifting Upper Deck Modul MODEC dengan Pendekatan Dinamik. Jurusan Teknik Kelautan, Fakultas Teknologi Kelautan, Institut Teknologi Sepuluh Nopember (ITS).Roberto Leon. (2018). Journal of Visualized Experiments, Stress-Strain Characteristics of Steels. Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VAT.W. Ling, X.L. Zhao, R. Al-Mahaidi, J.A. Packer (2006). Investigation of block shear tear-out failure in gusset-plate welded connections in structural steel hollow sections and very high strength tubes. Civil Engineerng, Faculty of Civil Engineering, Monash University.

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Racine, Elizabeth F., Sarah B. Laditka, Jacek Dmochowski, Michael C. R. Alavanja, Duck-chul Lee e Jane A. Hoppin. "Farming Activities and Carrying and Lifting: The Agricultural Health Study". Journal of Physical Activity and Health 9, n. 1 (gennaio 2012): 39–47. http://dx.doi.org/10.1123/jpah.9.1.39.

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Background:Heavy carrying and lifting (HCL) is a common activity among farmers that may be related to health. The aim of this study was to examine HCL as a proxy for occupational physical activity (PA) among farm residents. The secondary objective was to evaluate PA based on HCL.Methods:Data from 21,296 farmers and 30,951 spouses in the Agricultural Health Study examined the relationship between HCL and farm activities and individual/farm characteristics. HCL was categorized as ≥ 1 or < 1 hours per day. The association between HCL and farm activities (15 for farmers; 16 for spouses) and individual/farm characteristics was examined using adjusted logistic regression. To evaluate PA, we created a PA activity index using metabolic equivalents for HCL, and compared PA weekly averages with national guidelines.Results:In adjusted results, most farm activities were significantly associated with HCL. Based on HCL, farmers had a median of 1.5 hours and spouses 0.5 hours of vigorous or muscle-strengthening PA per day. Most farmers (94%) and about 60% of spouses meet or exceed 2008 national guidelines for vigorous or muscle-strengthening PA.Conclusion:Findings suggest the HCL measure may be useful as a PA metric in future studies of occupational PA among farm residents.

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Zhao, Caijun, Kai Way Li e Cannan Yi. "Assessments of Work Gloves in Terms of the Strengths of Hand Grip, One-Handed Carrying, and Leg Lifting". Applied Sciences 11, n. 18 (7 settembre 2021): 8294. http://dx.doi.org/10.3390/app11188294.

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Gloves are used at workplaces to protect hands and fingers from potential hazards. Three types of work gloves were assessed in terms of the strength of grip, carrying, and lifting. Thirty adults (14 males and 16 females) joined as human participants. The strength data were measured under bare hand and three gloved conditions. The grip spans in the grip strength measurements included 45 mm, 55 mm, 65 mm, and 75 mm. The carrying strength was measured for both dominant and non-dominant hands under leg straight and semi-squat postural conditions. The lifting strength was measured at a semi-squat posture. The results showed that glove (p < 0.0001), grip span (p = 0.001), gender (p < 0.0001), and handedness (p < 0.0001) all affected grip strength significantly. Wearing the gloves tested in this study led to a decrease of grip strength up to 22.9%, on average, depending on gender, grip span, and hand tested. Wearing the cotton gloves led to a decrease of one-handed carrying strength ranged from 3.5% to 9.7% for female participants. All the participants took advantages in carrying strength when wearing the cut-resistant gloves. The leg lifting strength data indicated that the effects of the gloves were insignificant. The information of this study is beneficial for practitioners in the design of manual materials handling tasks concerning the use of work gloves.

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Tesi sul tema "Lifting and carrying"

1

Lowe, Brian D. "Modelling the additivity of perceived exertion in symmetric, mid-sagittal lifting". Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-06112009-063305/.

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Li, Jian-Chuan. "Three dimensional kinetic analysis of asymmetrical lifting". Thesis, Rhodes University, 1996. http://hdl.handle.net/10962/d1018240.

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Manual lifting is dynamic in nature and involves asymmetrical loading of the human body. This study investigated kinematic and kinetic characteristics of asymmetrical lifting in three dimensions, and then constructed a 3-D biomechanical force model of the lower back which is capable of quantifying torsional stress on the human spine. Eleven healthy adult male manual workers were recruited as subjects and lifted a 1 Okg load placed at the sagittal plane (0°) and at 30°, 60° and 90° lateral planes to the right, from 150mm and 500mm initial lift heights, respectively, to an 800mm high bench in the sagittal plane. Subjects' spinal motions and the trajectorial movements of the load in three-dimensional space were monitored simultaneously by a Lumbar Motion Monitor and a V-scope Motion Analyzer. Generally, the spinal motion factors increased as a function of increasing task asymmetry and differed (p < 0.05) between the lower (150mm) and higher (500mm) levels in the sagittal plane. In all asymmetrical conditions the motion factors showed a dramatic increase at the 500mm level compared to the increase at the 150mm level. The rates of increase in the horizontal and frontal planes were greater than those in the sagittal plane. Task asymmetry had a significant effect on the spinal kinematic parameters in the frontal plane at the two lift heights, and only at the high level (500mm) in the horizontal plane, with exception of average acceleration . Initial lift height exerted a significant effect on peak velocity and acceleration in both frontal and horizontal planes and on range of motion in the horizontal plane. Kinetic characteristics of the object being lifted in three-dimensions increased with an increase in task asymmetry. The increase was more dramatic in the lateral direction in the horizontal plane. However, motion factors in the vertical direction dominated the full range of the lift, irrespective of task asymmetry and lift height. The kinetic measures differed (p < 0.05) between the lower ( 1 50mm) and the higher (500mm) levels in the vertical direction except for average force. Task asymmetry had a significant effect on dynamic measures in the anterior-posterior direction. Both task asymmetry and lift height had a significant effect on dynamic motion factors in the lateral direction. From insights gained in the empirical study a three-dimensional biomechanical force model of the lower back was constructed based on a mechanism of muscle force re-orientation in the lumbar region. Acknowledging that the lower back is designed to be able to rotate around its longitudinal axis, the proposed model accounts for compression and shear forces and a torsional moment. The model has similar predictability to Schultz and Andersson's (1981) model when the human trunk exerts only a flexion-extension moment in the sagittal plane, but additionally predicts dramatic increases in shear forces, oblique muscle forces and torsional moment under asymmetrical lifting conditions which the Schultz-Andersson model does not. The increase rates in these forces and moment are not linearly related over task asymmetric angle.

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3

Hartsell, Jared J. "The development of a dynamic scissor lift model". Morgantown, W. Va. : [West Virginia University Libraries], 2010. http://hdl.handle.net/10450/11215.

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Thesis (M.S.)--West Virginia University, 2010.
Title from document title page. Document formatted into pages; contains vii, 55 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 53-54).

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Ng, Kim-ching, e 吳劍青. "Prevention of occupational injuries caused by manual handling in health care settings: costs and benefits". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B42997574.

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Salazar, Nicolas F. "Determination of the range of safe-comfortable lifting postures using the aesthetic ergonomics theory". Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10020.

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Thesis (Ph. D.)--West Virginia University, 2009.
Title from document title page. Document formatted into pages; contains xii, 196 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 141-146).

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Ng, Kim-ching. "Prevention of occupational injuries caused by manual handling in health care settings costs and benefits /". Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B42997574.

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Noone, Gregory P. "Biomechanical modelling of some musculo-skeletal problems /". Title page, table of contents and summary only, 1993. http://web4.library.adelaide.edu.au/theses/09PH/09phn817.pdf.

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Thesis (Ph. D.)--University of Adelaide, Dept. of Applied Mathematics, 1994.
Copies of author's previously published articles inserted at back. Includes bibliographical references (leaves 211-220).

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Baggio, Viviana Carolina. "Comparison between human perception of risk of injury and NIOSH WPG for lifting tasks". Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4636.

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Thesis (M.S.)--West Virginia University, 2006.
Title from document title page. Document formatted into pages; contains x, 107 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 68-71).

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Munn, Kemal. "Analysis of XYZ company's powder transfer in the processing department". Menomonie, WI : University of Wisconsin--Stout, 2006. http://www.uwstout.edu/lib/thesis/2006/2006munnk.pdf.

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Choi, Chun-yeung. "A generic fatigue model for frequently performed, highly repetitive combined material handling". Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B37841464.

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Libri sul tema "Lifting and carrying"

1

Authority, Health and Safety. Lifting and carrying. [Dublin]: Health and Safety Authority, 1993.

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Dunn, Andrew. Lifting by levers. New York: Thomson Learning, 1993.

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3

Ritchie, Ralph W. How to lift and move almost anything: For almost anyone who finds the need to life or move heavy, bulky, or massive objects : for: sculptors, independent women, individuals working alone, those who can't afford the "pros", special section on emergency applications. Springfield, Oregon: Ritchie Unlimited Productions, 1998.

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Roberts-Phelps, Graham. Safe manual handling: A Gower health and safety workbook. Aldershot, England: Gower, 1999.

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Fatih, Erdogan, a cura di. Tasima =: Carrying. London: Milet, 2000.

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National Institute for Occupational Safety and Health. Division of Biomedical and Behavioral Science. Work practices guide for manual lifting. Cincinnati, Ohio: U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, Division of Biomedical and Behavioral Science, 1986.

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Office, International Labour, a cura di. Maximum weights in load lifting and carrying. Geneva: International Labour Office, 1988.

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Swain, Gwenyth. Carrying. Minneapolis, MN: Carolrhoda Books, 1999.

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9

Colombini, Daniela. Manual lifting: A guide to the study of simple and complex lifting tasks. Boca Raton, FL: Taylor & Francis, 2012.

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Simonton, Kevin. Lessons for lifting and moving materials. [Olympia, Wash: State of Washington, Dept. of Labor and Industries, 1996.

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Capitoli di libri sul tema "Lifting and carrying"

1

Trkov, Mitja, e Andrew S. Merryweather. "Estimation of Lifting and Carrying Load During Manual Material Handling". In Advances in Intelligent Systems and Computing, 153–61. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-96068-5_17.

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Poliero, Tommaso, Maria Lazzaroni, Stefano Toxiri, Christian Di Natali, Darwin G. Caldwell e Jesús Ortiz. "Lifting and Carrying: Do We Need Back-Support Exoskeleton Versatility?" In Biosystems & Biorobotics, 499–503. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69547-7_80.

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Fox, Robert R. "The Revised ISO Standard 11228-1 on Manual Lifting, Lowering and Carrying: Special Focus on Extensions of the Revised NIOSH Lift Equation and a Strategy for Interpretation". In Advances in Intelligent Systems and Computing, 154–58. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-96083-8_19.

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Graham, Julia. "Lifting and carrying". In Finnie's Handling the Young Child with Cerebral Palsy at Home, 165–80. Elsevier, 2009. http://dx.doi.org/10.1016/b978-0-7506-8810-9.00014-9.

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"Psychophysical Tables: Lifting, Lowering, Pushing, Pulling, and Carrying". In Handbook of Human Factors and Ergonomics Methods, 142–62. CRC Press, 2004. http://dx.doi.org/10.1201/9780203489925-22.

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6

"Ergonomics of Manual Handling-Part 1: Lifting and Carrying". In Handbook of Standards and Guidelines in Ergonomics and Human Factors, 275–90. CRC Press, 2005. http://dx.doi.org/10.1201/9781482289671-27.

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Schaub, Karlheinz G. "Ergonomics of Manual Handling—Part 1: Lifting and Carrying". In Handbook on Standards and Guidelines in Ergonomics and Human Factors, 255–70. CRC Press, 2005. http://dx.doi.org/10.1201/9780429189890-18.

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Mital, A., A. S. Nicholson e M. M. Ayoub. "High and very high frequency manual lifting/lowering and carrying (load transfer)". In A Guide to Manual Materials Handling, 116–21. CRC Press, 2017. http://dx.doi.org/10.1201/9780203719633-11.

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Gupta, Arpan, e O. P. Singh. "Computer Aided Modeling and Finite Element Analysis of Human Elbow". In Medical Imaging, 1044–52. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-0571-6.ch042.

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Finite element modeling (FEM) plays a significant role in the design of various devices in the engineering field of automotive, aerospace, defense etc. In the recent past, FEM is assisting engineers and healthcare professional in analyzing and designing various medical devices with advanced functionality. Computer aided engineering can predict failure circumstances, which can be avoided for the health and well-being of people. In this research work, computer aided engineering analysis of human elbow is presented beginning with modeling of human elbow from medical image data, and predicting the stresses in elbow during carrying heavy loads. The analysis is performed by using finite element method. The results predict the stress level and displacement in the human bone during heavy weight lifting. Thus, it can be used to predict the safe load that a particular person can carry without bone injury. The present analysis focused on a particular model of bone for a particular individual. However, safe load can be determined for various age groups by generating more detailed model including tendons, ligaments and by using patient specific material properties.

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Atti di convegni sul tema "Lifting and carrying"

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Poliero, Tommaso, Matteo Iurato, Matteo Sposito, Christian Di Natali, Stefano Toxiri, Sara Anastasi, Francesco Draicchio et al. "A case study on occupational back-support exoskeletons versatility in lifting and carrying". In PETRA '21: The 14th PErvasive Technologies Related to Assistive Environments Conference. New York, NY, USA: ACM, 2021. http://dx.doi.org/10.1145/3453892.3453901.

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2

Novak, Vesna D., Yu Song, Maja Goršič e Boyi Dai. "Effects of a Passive Back Support Exoskeleton when Lifting and Carrying Lumber Boards". In 2023 45th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC). IEEE, 2023. http://dx.doi.org/10.1109/embc40787.2023.10340289.

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Owens, Paul, e Yujiang Xiang. "Human Box Delivering Simulation by Subtask Division". In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-86195.

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This study addresses one solution for determining the optimal delivery of a box. The delivering task is divided into five subtasks: lifting, initial transition step, carrying, final transition step, and unloading. Each task is simulated independently with appropriate boundary conditions so that they can be stitched together to render a complete delivering task. Each task is formulated as an optimization problem. The design variables are joint angle profiles. For lifting and carrying tasks, the objective function is the dynamic effort. In contrast, for transition task, the objective function is the combination of dynamic effort and joint angle discomfort. For unloading, it is a reverse process of lifting motion. A viable optimization motion is generated from the simulation results. The joint torque, joint angle, and ground reactive forces are analyzed for the delivering motion which is also empirically validated.

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4

Nagaya, Kazu, Takashi Ohhira e Hideki Hashimoto. "Developing power-assisted two-wheeled luggage-carrying robot for stair-lifting using admittance control". In 2023 IEEE International Conference on Mechatronics (ICM). IEEE, 2023. http://dx.doi.org/10.1109/icm54990.2023.10101928.

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5

de Vargas, Vinícius Athaydes, Gustavo Peres e Rogério J. Marczak. "Inclusion of Tire Lifting Effect in Traffic Simulation of a Commercial Load Carrying Vehicle". In 2008 SAE Brasil Congress and Exhibit. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2008. http://dx.doi.org/10.4271/2008-36-0116.

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6

Jimmy, Dorcas, Emenike Wami e Michael Ifeanyi Ogba. "Cuttings Lifting Coefficient Model: A Criteria for Cuttings Lifting and Hole Cleaning Quality of Mud in Drilling Optimization". In SPE Nigeria Annual International Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/212004-ms.

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Abstract In this study, the hole cleaning qualities of mud samples formulated with tigernut derivatives – starch and fibre – as additives were determined by adding drill cuttings as impurities and evaluating the Carrying Capacity Index (CCI) as well as Transport Index (TI) of the muds. Results of the analysis conducted for the mud properties showed that all the different mud properties but the pH of the mud evaluated of mud samples B, C1, C2, and C3 were slightly higher (albeit within the recommended values) than those of the control (standard) mud sample A. Using the results obtained from mud properties analysis and drilling operations data for the evaluation of the hole cleaning qualities, the following new expressions for optimum cuttings lifting ability (β) and cuttings lifting coefficient (β1), which gives criteria for cutting lifting in a wellbore were developed: β1 = 0.11519 [(1 − Cf)]−1(dp)−2.014. The higher the value of β1 greater than one, the better the hole cleaning ability of the mud and the lower the mud flowrate needed to achieve better hole cleaning for a given cutting particle size.

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7

Li, Yi-Chun, Steven A. Lavender, Raghu N. Natarajan, Gunnar B. J. Andersson e Faird M. L. Amirouche. "Kinematic and Kinetic Analyses in Full-Body Asymmetric Lifting". In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0440.

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Abstract Biomechanical models had been used to conduct a series of lifting related experiments which were performed to understand different parameters such as asymmetry, lifting speed, load magnitude, lifting techniques, fatigue, etc. These studies were performed either in Bottom-Up or Top-Down models to predict kinematic or kinetic data in each inter-segment joint. Bureau of Labor Statistics (1995) [1] reported that in 1994, 367,424 injuries due to overexertion in lifting had 65% affected the back; 93,325 injuries due to overexertion in pushing or pulling, 52% affected the back; 68,992 injuries due to overexertion in holding, carrying, or truning, 58% affected the back; and totaled across these three categories, 47,861 disorders affected the shoulder [2]. Since lifting activities are whole body motion and each inter-segment joint cannot be treated as individual, the synchronization of all body joints should be considered during lifting tasks. Therefore the whole-body posture, kinematic, and kinetic analyses were included in this study. The whole-body posture analysis included lift duration, peak box velocity and acceleration, and the orientation of the trunk and pelvis segment; the whole-body kinematic analysis contained angular displacement, velocity, and acceleration of all body joints; and the whole-body kinetic analysis consisted of the inertial forces and inertial moment of each body segment, and the local forces and moments of each inter-segment joint.

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Grinspon, A. Sahaya. "Liftable Auxiliary Axle for a Multi Axle Vehicle: A Review". In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86085.

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Retractable suspension system is used to lift the auxiliary axle of a multi axle vehicle. The article summarizes the current state of knowledge of the lifting mechanisms, which are used for lifting and lowering the auxiliary axle. Various designs of liftable axle are described. To proper use of the auxiliary axle, important guidelines are given for suppliers, OEMs and customers. Several viable steerable and non-steerable liftable axles are developed with various load carrying capacities using air bellows. In these liftable axles, the air bellows expands when compressed air is supplied to the air bellows at a required pressure. The air bellows activates the lifting mechanism; thereby the tires of the auxiliary axle are lifted from the road surface. When the air is released from the air bellows, the tires are lowered to engage the road surface.

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9

Shigematsu, Riku, Shintaro Komatsu, Yohei Kakiuchi, Kei Okada e Masayuki Inaba. "Lifting and Carrying an Object of Unknown Mass Properties and Friction on the Head by a Humanoid Robot". In 2018 IEEE-RAS 18th International Conference on Humanoid Robots (Humanoids). IEEE, 2018. http://dx.doi.org/10.1109/humanoids.2018.8625001.

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10

Chen, J., C. R. Ahn e S. Han. "Detecting the Hazards of Lifting and Carrying in Construction through a Coupled 3D Sensing and IMUs Sensing System". In 2014 International Conference on Computing in Civil and Building Engineering. Reston, VA: American Society of Civil Engineers, 2014. http://dx.doi.org/10.1061/9780784413616.138.

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Rapporti di organizzazioni sul tema "Lifting and carrying"

1

Hodgdon, J. A., e M. B. Beckett. Body Estimation and Physical Performance: Estimation of Lifting and Carrying from Fat-Free Mass. Fort Belvoir, VA: Defense Technical Information Center, ottobre 1998. http://dx.doi.org/10.21236/ada370123.

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