scholarly journals Model and algorithms for a decision support system on the application of rescue intends in case of a beyond design-basis rapid accident of a river passenger vessel

2021 ◽  
Vol 2131 (3) ◽  
pp. 032032
Author(s):  
A V Valyaev ◽  
E A Lukina ◽  
Y S Fedosenko
Keyword(s):  
Static Stability ◽  
Threshold Values ◽  
Data Preparation ◽  
Active Monitoring ◽  
Dangerous Situation ◽  
Life Saving ◽  
Software And Hardware ◽  
The Moment ◽  
Passenger Vessel

Abstract The problem of determination of threshold values of changes in stability characteristics of a river displacement ship is studied. A model and a data preparation scheme are being developed for the algorithmic implementation of the construction of curves of threshold values of lateral stability characteristics until the moment corresponding to the command given by the ship’s captain to bring life-saving appliances to a state of readiness or to use them. For the case of flooding of two adjacent hull compartments of a three-deck river passenger motor ship under the action of an external static inclining moment, illustrating data of calculations of hydrostatic characteristics and ship trim are presented, and an ensemble of diagrams of its static stability with threshold values is built. The results of the studies performed are intended for the software and hardware implementation of a digital system for active monitoring of the ship’s hull condition, predicting the development of a dangerous situation, supporting decision-making by the captain of a river vessel on the use of standard rescue equipment in the event of the threat of the ship being flooded and overturned.

PREDICTION OF THE EFFICIENCY OF RECONSTRUCTIVE INTERVENTIONS ON THE MAJOR NERVES OF THE FOREARM, DEPENDING ON THE DEFECT DURATION AND THE FOLLOWING REHABILITATION

2020 ◽  
pp. 77-88
Author(s):  
Дмитрий Валериевич Судаков ◽  
Олег Валериевич Судаков ◽  
Людмила Валентиновна Кретинина ◽  
Наталья Владимировна Якушева ◽  
Артём Николаевич Шевцов
Keyword(s):  
Nervous Tissue ◽  
Clinical Situation ◽  
Economic Importance ◽  
Important Data ◽  
Subsequent Period ◽  
Complete Restoration ◽  
Reconstructive Microsurgery ◽  
The Moment

Статья посвящена построению прогноза эффективности реконструктивных вмешательств на магистральных нервах предплечья в зависимости от протяженности дефекта нервной ткани и особенностей последующего периода реабилитации пациентов. Данная тематика является весьма актуальной, так как с каждым годом во всем мире наблюдается определенный рост случаев травм различного генеза магистральных нервных стволов, которые затем нередко приводят к временной нетрудоспособности и даже инвалидности пациентов. Реконструктивная микрохирургия многие десятилетия пытается решить целый ряд проблем аутотрансплантации нервных стволов и повысить ее общую эффективность. Но из-за определенных проблем связанных с финансированием, некоторые вопросы трансплантологии и реабилитации остаются нерешенными и в настоящий момент. Все это придает представленной работе важное значение не только медицинского, но и социально - экономического плана. Целью работы стала попытка построения прогноза восстановительных операций на нервной ткани, с учетом объема пораженных структур и периода реабилитации. Объектами исследования стало 180 больных, которым по той или иной причине, осуществлялась реконструктивная операция на одном из магистральных нервов предплечья. Все пациенты были разделены на 3 группы по 60 человек, в зависимости от протяженности дефекта магистрального нерва: до 4 см, от 4 до 8 см и от 8 до 12 см. Последующее разделение внутри каждой группы на подгруппы производилось в зависимости от определенного поврежденного нерва (лучевой, локтевой, срединный). В работе изучалось течение раннего послеоперационного воспалительного процесса, с определением бактериальной микрофлоры в ране. Изучались и отдаленные последствия оперативного вмешательства. Своеобразной новизной для данной тематики в целом, стало выявление последующего установления инвалидности пациентов. Кроме того, важные данные были получены и по срокам реабилитации и частичного или полного восстановления утраченных функций по срокам в зависимости от размеров восстанавливаемого дефекта и от наличия или отсутствия необходимой реабилитации. Полученные в работе данные могут представлять интерес не только для врачей хирургов и травматологов, но и для организаторов здравоохранения, позволяя производить прогнозы по выздоровлению пациентов в каждой определенной клинической ситуации The article is devoted to the construction of a forecast of the effectiveness of reconstructive interventions on the main nerves of the forearm, depending on the length of the defect in the nervous tissue and the characteristics of the subsequent period of rehabilitation of patients. This topic is very relevant, since every year all over the world there is a certain increase in cases of injuries of various origins of the main nerve trunks, which then often lead to temporary disability and even disability of patients. For many decades, reconstructive microsurgery has been trying to solve a number of problems of autotransplantation of nerve trunks and improve its overall efficiency. But due to certain problems associated with funding, some issues of transplantation and rehabilitation remain unresolved at the moment. All this gives the presented work important not only medical, but also socio - economic importance. The aim of this work was to attempt to predict restorative operations on the nervous tissue, taking into account the volume of the affected structures and the period of rehabilitation. The objects of the study were 180 patients who, for one reason or another, underwent a reconstructive operation on one of the main nerves of the forearm. All patients were divided into 3 groups of 60 people, depending on the length of the main nerve defect: up to 4 cm, from 4 to 8 cm, and from 8 to 12 cm. Subsequent division within each group into subgroups was performed depending on the specific damaged nerve ( radial, ulnar, median). The work studied the course of the early postoperative inflammatory process, with the determination of bacterial microflora in the wound. The long-term consequences of surgery were also studied. A peculiar novelty for this topic as a whole was the identification of the subsequent establishment of disability in patients. In addition, important data were obtained on the timing of rehabilitation and partial or complete restoration of lost functions in terms of timing, depending on the size of the restored defect and on the presence or absence of the necessary rehabilitation. The data obtained in this work may be of interest not only for surgeons and traumatologists, but also for healthcare organizers, allowing them to make predictions about the recovery of patients in each specific clinical situation

scholarly journals Determination of a long-term optimal irrigation strategy for dry beans in Parana State, Brazil

1997 ◽  
Vol 54 (spe) ◽  
pp. 155-164 ◽  
Author(s):  
R.T. de Faria ◽  
M.V. Folegatti ◽  
J.A. Frizzone ◽  
A.M. Saad
Keyword(s):  
Management Strategy ◽  
Irrigation Management ◽  
Growth Conditions ◽  
Threshold Values ◽  
Dry Beans ◽  
Irrigation Strategy ◽  
Product Price ◽  
Net Return

The economical benefits of different irrigation strategies were assessed by long term simulation (20 years) for dry beans in Paraná, Brazil. The model BEANGRO was used to simulate crop yield and irrigation requirements assuming eight levels of irrigation threshold (20 to 90% of the remaining soil available water in steps of 10%), in addition to a level considering no irrigation. Net return was the objective function to select the optimum irrigation management strategy, assuming fixed and stochastic distributions of historical product price. The results showed that yield was significantly increased by irrigation despite a high variability for all the simulation strategies, due to variations on growth conditions over the years. Although the net return was highly variable, it was positive in 75% of the years for all strategies with threshold values higher than 30%. The strategy of irrigating the crop before the soil reaches 60% AW provided the maximum economical benefits. The high profit using this improved strategy justifies the practice of irrigation for beans in Paraná.

scholarly journals Interface Pharmacotechniques: Conditions and Opportunities

Discourse ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 5-19
Author(s):  
K. A. Ocheretyany
Keyword(s):  
Mutual Recognition ◽  
Research Literature ◽  
Digital Devices ◽  
Technical Requirements ◽  
Life Saving ◽  
The World ◽  
Digital Environments ◽  
The Moment ◽  
The Right ◽  
Emotional Burnout

Introduction. The article deals with finding environmental patterns for the digital environment – at the moment, digital environments are more likely to bring a person closer to machine and technical requirements. The article poses a question (and a detailed answer is given) about how and under what conditions technology does not absorb a person, but gives her the opportunity to reveal her potential, turning it into existential capital.Methodology and sources. Methodologically, the work is based on philosophical analytical research and precedents of the digital field, examples of research literature, methods of media philosophy, anarchic epistemology, and topological reflection are applied. In particular, the hypotheses of the digital space as simultaneously communicative and disciplinary (Habermas, Foucault) digital behaviorism by B. Fogg, the economics of forgiveness by D. Graeber, the anthropology of the game by R. Caillois, Internet animals by A. Pscher were analyzed: on their basis, the principles of digital ethology and ecology.Results and discussion. The task of converting interfaces into ecological and pharmacological environments is the task of organizing by means of interfaces of various types of agencies. They should be organized in such a way that the modes of energy consumption and operation are replaced by modes of energy saving and care. In this case, the interfaces of digital devices could be not a continuation of the technical bureaucracy, but the conditions for comprehending and collecting the experience of the world. The project for this reorganization of funds – from exploitation to pharmacology – was proposed in the article. The article shows that the interface of digital devices can be not only a tool (techne) or a form of vision and cognition of the world (episteme), but also an ecological life-saving environment (pharmacy) for this it is necessary to take into account a number of factors: 1) counter-standardization and counter-personalization of the interface – it must to collide not with oneself, but with another, in all the radicalism of one’s otherness; 2) the ability to move from meaning to presence, and focus not on the consumption of ideological texts as standardized scenarios, but on the creation of contexts of existential interaction; 3) rejection of the agonality of digital consumption (which leads to emotional burnout) in favor of recognizing the uniqueness and incommensurability of experience, and, accordingly, creating conditions for mutual recognition and mutual trust, which are the main capital of a modern person in an era of semantic impenetrability in digital, the growth of suspicion and cynicism.Conclusion. The interface turns from a disciplinary space into a field of care when it becomes possible by means of the interface to go beyond itself, when it grants the right to postponement, to inattention, to offline, when instead of a tool of intensifying life, it becomes a condition for its deeper living. To do this, one should turn from techniques of drawing attention in the interface to techniques of organizing and interpreting the experience of the world.

scholarly journals Determination of Neuromuscular Control of the Upper Limbs in Children - Case Study

2020 ◽  
Vol 11 (4Sup1) ◽  
pp. 46-61
Author(s):  
Carmen-Magdalena Camenidis ◽  
◽  
Irina Băițel ◽  
Amalia Oatu ◽  
Octavian Amzulescu ◽  
...  
Keyword(s):  
Kinematic Chain ◽  
Neuromuscular Control ◽  
Female Gender ◽  
Upper Limbs ◽  
Motor Action ◽  
Muscle Groups ◽  
The Moment ◽  
The Right

The objective of this case study is to observe the existence of an anticipation mechanism at the muscle groups level of the upper limbs. We tried to highlighted this anticipation process by measuring the potential of surface electric for some muscle groups representing the kinematic chain on the right side, involved in the motor action of catching a basketball and a 3kg medicine ball with two hands to the chest. We conducted a case study of a 13-year-old child, female gender. As a measurement method, we used surface electromyography signals of the EMG Trigno Delsys wireless system with 16 electrodes. We determined the moment when the muscles come into action by increasing the potential of surface electric and the moment when the action of catching the ball takes place, using the information provided by the accelerometers incorporated in the sensors of the Delsys equipment used. Therefore, we obtained information about how different muscle groups come into action which helped us to get an idea of how the child's movement is structured. Based on results of accelerations and EMG signals acquired we have formulated conclusions regarding the neuromuscular control of the tested subject. We also planned for the future to test a larger group of participants in the study research of anticipation mechanism in children who do not practice any performance sports.

scholarly journals Comparative relations between progesterone blood concentration and appearance of oestrus in cows

2007 ◽  
Vol 61 (1-2) ◽  
pp. 37-42 ◽  
Author(s):  
Gabriel Otava ◽  
Calin Mircu ◽  
Horia Cernescu ◽  
Violeta Igna
Keyword(s):  
Blood Concentration ◽  
Negative Influence ◽  
Elisa Test ◽  
Economic Problem ◽  
Optimal Time ◽  
Progesterone Concentration ◽  
Inappropriate Treatment ◽  
The Moment ◽  
Cattle Farms

The timely detection of oestrus presents an important professional procedure with which cattle farmers, in addition to veterinarians, are very often faced, because failure to detect oestrus poses a big economic problem. The objective of this work is to evaluate the efficacy of discovering oestrus in cows by determining the progesterone concentration (P4) in blood plasma. This experiment covered 22 animals, including 15 cows and 7 heifers, in which spontaneous oestrus was discovered. P4 concentration was determined using the ELISA test in samples of blood taken from the animals at the moment of insemination. Of the 15 cows, four cows (26.6%) were not inseminated at the optimal time, and the P4 level in these animals was higher than 1 ng/ml. All the heifers showed a progesterone concentration of over 1 ng/ml, and a percentage of conception which was 85%. The high P4 level in heifers at the moment of insemination could also be a consequence of stress caused by the regrouping and separating of the animals. Even though the heifers were under stress, which is indicated by the high progesteronemia values at the moment of insemination, the percentage of conception among them was beyond expectations. Therefore, the determination of P4 values at the moment of insemination is a suitable method for improving reproduction management on cattle farms. Inappropriate treatment of cows which are expected to show oestrus can cause stress and an increase in the values of the blood concentration of P4. On the grounds of the results obtained in this work, no negative influence of stress on the insemination results in heifers was observed.

A Project in the Determination of the Moment of Inertia

2005 ◽  
Vol 33 (4) ◽  
pp. 319-338
Author(s):  
Ron P. Podhorodeski ◽  
Paul Sobejko
Keyword(s):  
Dynamic Properties ◽  
Equations Of Motion ◽  
Mechanical Systems ◽  
Moment Of Inertia ◽  
Educational Goal ◽  
Centre Of Mass ◽  
Comparison Of Results ◽  
Physical Testing ◽  
The Moment

Analysis of the forces involved in mechanical systems requires an understanding of the dynamic properties of the system's components. In this work, a project on the determination of both the location of the centre of mass and inertial properties is described. The project involves physical testing, the proposal of approximate models, and the comparison of results. The educational goal of the project is to give students and appreciation of second mass moments and the validity of assumptions that are often applied in component modelling. This work reviews relevant equations of motion and discusses techniques to determine or estimate the centre of mass and second moment of inertia. An example project problem and solutions are presented. The value of such project problems within a first course on the theory of mechanisms is discussed.

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