scholarly journals MODELING OF VIBRATION PROCESSES OF PASSENGER CAR BODY

2021 ◽  
Author(s):  
Dmitriy Antipin ◽  
Nikolay Lukashov ◽  
Elena Lukashova
Keyword(s):  
Computer Modeling ◽  
Human Body ◽  
Rail Transport ◽  
The Body ◽  
Passenger Car ◽  
Car Body ◽  
Modes Of Vibration ◽  
Negative Effect

The quality of rail transport largely depends on the comfortable and safe movement of passengers. By the method of computer modeling, the frequencies and modes of vibration of the body, which have a negative effect on the human body, were found.

scholarly journals Pengaruh Kebersihan Tangan Pada Saat Makan Menggunakan Terhadap Kontaminasi Pada Makanan

2019 ◽  
Author(s):  
Amira Dina Luthfiyyani
Keyword(s):  
Human Body ◽  
Research Method ◽  
Food Contamination ◽  
The Body ◽  
Literature Study ◽  
Body Interaction ◽  
Quality Of Food ◽  
Food Consumed

Abstract, There are several ways used by others to eat their food, one of which is using their own hands without cutlery. Eating with hands more people use this to make food tastier with the practicality of eating using hands is also one of the reasons many people like to use their hands as cutlery. The writing of this paper aims to find out how to eat by hand and cleanliness of food contamination and the quality of food consumed. The research method used was a literature study by analyzing the contents of eating using hands, body interaction, and the influence of eating using hands to understand the body. The results of this study indicate that eating using hands can affect the health of the human body.

scholarly journals Biocompatibility of Medical Devices - A Review

2021 ◽  
Vol 10 (36) ◽  
pp. 3152-3158
Author(s):  
Ramya Shree Gangadhar ◽  
Balamuralidhara V ◽  
Rajeshwari S.R.
Keyword(s):  
Medical Device ◽  
Medical Devices ◽  
Human Body ◽  
The Body ◽  
Biological Responses ◽  
Medical Device Manufacturers ◽  
Biocompatibility Testing ◽  
Biological Environment ◽  
Key Words Biocompatibility

BACKGROUND Biomaterial is defined as "any substance or combination of medicine, artificial or natural origin, which can be used at any time, in whole or part by a system that controls, adds to, or restores any tissue, organ or function". ISO 10993-1: 2018 standard defines bio compliance law as "the ability of a medical device or tool to perform a selected program with the acceptable response of experts". Incompatible factors cause chemical reactions in patients, with little or no side effects. The body can respond in a sort of way after the installation of medical devices, so testing and improvement is important here. Therefore, testing and improvement in this field are important. Biocompatibility is required for any significant use of components or materials in medical devices. Inconsistent factors create negative biological responses in patients, which may have serious consequences. Biomaterials are substances utilized in medical devices, especially in applications where the device is touched, temporarily embedded, or permanently implanted within the body. Because of the significant impact of biocompatibility, many countries have imposed regulations on medical device manufacturers to meet biocompatibility specifications. Here is a brief explanation about the biocompatibility and incompatibility parameters of medical devices with a human body and its need for biocompatibility of medical devices with the human body. Medical devices have improved doctors' ability to diagnose and treat disease, which has led to significant improvements in health and quality of life. Thus, medical devices are prone to various incompatibility issues and procedures that affect the biological environment must be followed. KEY WORDS Biocompatibility, Material Interactions, Sterilization, Medical devices, Biocompatibility Testing, Incompatibility Factors.

SIMULATION OF LOADING OF THE BODY OF A DOUBLE-STOREY PASSENGER CAR IN A FOCAL FIRE WITH SPECIFIED CHARACTERISTICS

2020 ◽  
Author(s):  
Dmitriy Antipin ◽  
Mihail Bulychev ◽  
Gennadiy Petrov
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Carrying Capacity ◽  
Thermal Loading ◽  
The Body ◽  
Finite Element Scheme ◽  
Passenger Car ◽  
Element Scheme ◽  
Car Body ◽  
Element Method

A simplified method has been developed for assessing the loading of the load-bearing systems of passenger cars under thermal loading with a fire spot with limited properties. A system of simplifications for realizing a combustion spot is substantiated. A method for its implementation is proposed. The description of the object of research is given with the necessary thoroughness of presentation. A finite element scheme has been developed and adapted, taking into account the application of thermal loads in the system of an industrial software complex that implements the finite element method. Verification of the finite element scheme was carried out taking into account full-scale normative experiments. A conclusion is made about the possibility of the applicability of the finite element scheme for the study. Numerical experiments have been carried out to assess the carrying capacity of the body of a double-deck passenger car when it is exposed to a combustion center with known thermal parameters. The experiments were built and performed in a finite element method system. The results of simulations in the affected zone of the alleged fire were obtained for the conditional spot of its location. Comparison of the results with the static loading mode of the car body is considered. The analysis of the results obtained is carried out. A conclusion is given on the effect of a small localization fire on the carrying capacity of the car body. The proposed method is evaluated taking into account the possibility of further use

Small Molecules Originated from Tryptophan and their Clinical Significance as Potential Biomarkers

2021 ◽  
Vol 25 ◽  
Author(s):  
Katarzyna Kowalik ◽  
Natalia Miękus ◽  
Tomasz Bączek
Keyword(s):  
Human Body ◽  
Kynurenine Pathway ◽  
The Body ◽  
Medical Procedures ◽  
Current Trends ◽  
Tryptophan Metabolites ◽  
Patient Prognosis ◽  
Potential Biomarkers ◽  
The Ideal

Background: L-tryptophan is an essential amino acid, necessary for the human body to function. Its degradation occurs through two metabolic pathways. Approximately 95% of the L-tryptophan available in the body is converted via the kynurenine pathway, while the remainder is degraded via the serotonin pathway. Properly maintained balance between the concentrations of individual small molecular metabolites is extremely important to maintain homeostasis in the human body, and its disruption could lead to the development of numerous neurological, neurodegenerative, neoplastic, as well as cardiovascular diseases. Recent reports suggested that by controlling the levels of selected L-tryptophan metabolites (potential biomarkers), it is possible to diagnose numerous diseases, monitor their course and assess patient prognosis. Objective: The aim of this paper is to review the currently important clinical applications of selected biomarkers from the L-tryptophan metabolism pathways that would be helpful in early diagnosis, monitoring the course and treatment of serious diseases of affluence, which ultimately could improve the patients’ quality of life, as well as support targeted therapy of the aforementioned diseases. Conclusion: Since the biochemical biomarkers determination in body fluids presents the ideal minimally invasive tool in the patents’ diagnosis and prognostication, the topic is up-to-date and, importantly, emphasized the current trends and perspectives of application of analysis of selected L-tryptophan metabolites named kynurenine and serotonin-derived small compounds in the routine medical procedures.

Human Body Pose Estimation with Particle Swarm Optimisation

2008 ◽  
Vol 16 (4) ◽  
pp. 509-528 ◽  
Author(s):  
Špela Ivekovič ◽  
Emanuele Trucco ◽  
Yvan R. Petillot
Keyword(s):  
Pose Estimation ◽  
Human Body ◽  
Particle Swarm ◽  
Search Space ◽  
The Body ◽  
Particle Swarm Optimisation ◽  
Human Body Model ◽  
Still Images ◽  
Body Pose Estimation

In this paper we address the problem of human body pose estimation from still images. A multi-view set of images of a person sitting at a table is acquired and the pose estimated. Reliable and efficient pose estimation from still images represents an important part of more complex algorithms, such as tracking human body pose in a video sequence, where it can be used to automatically initialise the tracker on the first frame. The quality of the initialisation influences the performance of the tracker in the subsequent frames. We formulate the body pose estimation as an analysis-by-synthesis optimisation algorithm, where a generic 3D human body model is used to illustrate the pose and the silhouettes extracted from the images are used as constraints. A simple test with gradient descent optimisation run from randomly selected initial positions in the search space shows that a more powerful optimisation method is required. We investigate the suitability of the Particle Swarm Optimisation (PSO) for solving this problem and compare its performance with an equivalent algorithm using Simulated Annealing (SA). Our tests show that the PSO outperforms the SA in terms of accuracy and consistency of the results, as well as speed of convergence.

scholarly journals Anthropometry and Size Groups in the Clothing Industry

2020 ◽  
Vol 20 (1) ◽  
pp. 56-62
Author(s):  
Monika Balach ◽  
Marzanna Lesiakowska-Jablonska ◽  
Iwona Frydrych
Keyword(s):  
Human Body ◽  
Human Population ◽  
Body Shape ◽  
Apparel Industry ◽  
The Body ◽  
Clothing Industry ◽  
Size Groups ◽  
Body Shapes ◽  
Modal Group

AbstractIt appears that from generation to generation the anthropometric dimensions of the human population are changing. The aim of this paper was to examine the extent of these changes and the need for generating updated measurements for the clothing industry. The clothing industry uses mannequins and avatars to represent the modal group of the population. The industry tends to use three different categories for the human body shape (endomorphic, mesomorphic, and ectomorphic). The clothing industry should focus on specific measurements of the body rather than general categories and create more body shapes to satisfy customer needs. The paper also aimed at showing the problems faced by clothing designers. The traditional way of measuring takes into account only selected dimensions of the human body; this does not reflect the “true” overall body shape. The dimension tables used by the apparel industry are based on the fourth anthropometric photograph taken between 1987 and 1989. These tables are still in the use currently; however, after 30 years they are outdated and should be revised for the young contemporary generation. This study can be used for the development of new dimension tables as well as defining methods aimed at improving the quality of measurements for clothing engineering purposes. This is an important issue, because the National Institute of Anthropometry does not deal with such problems (the measurements are conducted mainly for understanding the human body shape rather than any other application), which means that anthropometric measurements are not ideally suited to applications of clothes fitting.

scholarly journals Posture and physical activity in dialysis patients

2019 ◽  
Vol 65 (2) ◽  
Author(s):  
Magdalena Szałowska-Bojarun ◽  
Aleksandra Gawlikowska-Sroka
Keyword(s):  
Quality Of Life ◽  
Physical Activity ◽  
Kidney Disease ◽  
Physical Fitness ◽  
Sedentary Lifestyle ◽  
The Body ◽  
Dialysis Patients ◽  
Positive Effects ◽  
Negative Effect

A review of the literature concerning posture and physical activity among dialysis patients was performed in order to determine strategies for improving physical activity and thus quality of life in this group of patients. Correct posture ensures harmonious functioning of the body with optimal efficiency. A sedentary lifestyle has a negative effect on posture and reduces a person’s physical fitness. Haemodialysis forces patients to sit or lie down for long periods of time, while the consequences of chronic disease additionally predispose them to a sedentary lifestyle. Patients with chronic kidney disease treated by dialysis are particularly likely to exhibit sedentary behaviour, and thus are less physically active. The physical fitness of dialysis patients deteriorates due to kidney disease, but also because of concomitant diseases. It is very important to educate patients about the positive effects of physical activity, as well as to promote exercise as a necessary element of treatment for improving their quality of life.

Body-Mind Centering: An Exploration in Achieving Somatic Awareness for the Classical Ballet Dancer

2016 ◽  
Author(s):  
Lee Sela
Keyword(s):  
Human Body ◽  
Group Work ◽  
Research Process ◽  
The Body ◽  
Ballet Dancer ◽  
Somatic Awareness ◽  
Quality Of Movement ◽  
Classical Ballet ◽  
Body Mind Centering

With each step and each breath a ballet dancer takes the body acts as a compass, guiding each internal discovery. The ability to maintain one’s bearings can be achieved through the process and balance of Body-Mind Centering. This technique, founded by theorist Bonnie Bainbridge Cohen, journeys into the ever-changing territory of the human body by exploring thoughts, feelings, energy, and movement. Specifically, somatic awareness is reached through the exploration of bones, muscles, and organs. The method of research was generated in the following ways: Extensive research conducted in the field of anatomy and kinesiology, and an anatomy document created for future dancers to utilize prior to in-studio work. Next, a combination of Cohen’s previously devised exercises and newly crafted exercises were put into practice in a studio setting. Both solo and group work was conducted, targeting specific groups of bones, muscles, or organs. Lastly, a journal was kept with all practical observations discovered, and a final document was generated to reveal and collaboratively synthesize the observations made. Numerous discoveries were made regarding the differences in the quality of movement alterations (internal vs. external), the movement of a trained ballet-body (urges and inclinations), as well as the methods of exercise exploration (improvisation vs. structure), and how each affected the types of movement generated by the dancer. Through both the discoveries and difficulties that arose during the research process, future options for study were generated, such as, in-studio workshops that explore the interaction and dialogue between multiple bodies.

Human body: new organs

2021 ◽  
Vol 12 (2) ◽  
pp. 23-32
Author(s):  
N. Kolotilov
Keyword(s):  
Human Body ◽  
Professional Education ◽  
Interstitial Fluid ◽  
Shock Absorber ◽  
Medical Literature ◽  
Drainage System ◽  
Lymphatic Drainage ◽  
The Body ◽  
The Brain

The use of medical imaging technologies, bioimaging, digitized archives of scientific and medical literature, the special mentality of researchers, going beyond the skills of professional education have led to the discovery of new organs of the human body. The aim of the review is to present in the first iteration the basic information about the new organs of the human body and the need for their identification for complete scientific and practical work. Anterolateral ligament of the knee is present in 97.56 % of people. It was first described in 1879, rediscovered in 2013. The juxta-oral organ was first described in 1885, and again in 2015-2020. Description of the lymphatic drainage system of the brain was published in 1787 and 1816, rediscovery and detailing already in the 21st century. It was proposed to identify the interstitium as a special organ that deposits and transports about 20 % of the interstitial fluid in the body. It is assumed that the interstitium can act as a shock absorber and keeps tissue from rupture. The vision of the mesentery as a whole continuous organ will make it possible to modify many operations, reduce their invasiveness, implement full-fledged rehabilitation after surgery, and improve the quality of life of patients.

Improving the Ramp-Up Process of a Body-Construction Line by Numerical Supported Design of Clamping Devices and FEM Based Tolerance Prognosis

2015 ◽  
Vol 651-653 ◽  
pp. 932-937 ◽  
Author(s):  
Dirk Landgrebe ◽  
Patrick Ackert ◽  
Raik Grützner ◽  
Johannes Weber ◽  
Reinhard Mauermann ◽  
...  
Keyword(s):  
Metal Forming ◽  
Dimensional Accuracy ◽  
The Body ◽  
Body Parts ◽  
Cooperative Effort ◽  
Car Body ◽  
Body Construction ◽  
The Body Shop ◽  
Clamping Device

The use of FEM (finite element method) to assistant in ramp-up processes of car body construction lines is increasing, thanks to developments in recent years [1-3]. Car body manufacturing begins with sheet metal forming, while in subsequent steps the inner structures of the vehicle are assembled and connected to the outer skin by hemming. With reference to the current state of the art, there is no methodology which can reliably predict the dimensional accuracy of body parts through metal forming [4].Additionally, several methods to predict the distortion of joining and the dimensional effect of clamping during the assembly process were presented and validated [4-11]. Dimensional effects of the clamping process are basically the result of a deliberate alignment, other than the given values of construction to compensate dimensional inaccuracy of single parts from the body shop. These deliberate alignments are generally effected through a translation of clamps and pins in the clamping device. Until now, most of the methods of clamping and joining simulation presented have been verified using academic samples.In this report, the quality of forecasting in real problems during a ramp-up process will be verified and expanded. As part of a national project, co-funded by Sächsische Aufbaubank (SAB), the potential of FEM to assist in the ramp-up process were reviewed in a cooperative effort between Porsche Leipzig GmbH and Fraunhofer Institute for Machine Tools and Forming Technology (IWU). Furthermore, it will be shown that developed methods are able to represent the influence of deliberate positioning of clamps in complex samples. For the first time the quality of forecasting through the translation of locating pins is numerically and experimentally qualified.

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