scholarly journals Revisiting Parameters of Bioinspired Behavior Models in Group Foraging Modeling

2020 ◽  
pp. 79-103
Author(s):  
Alexander Malyshev ◽  
Evgenii Burgov
Keyword(s):  
Feeding Behavior ◽  
Experimental Basis ◽  
Group Foraging ◽  
Quality Estimation ◽  
Finite State ◽  
Complex Test ◽  
Series Of Experiments ◽  
Basic Behavior ◽  
Behavior Models ◽  
Made In

Using bioinspired models and methods is one of approaches for solving tasks of swarm robotics. In this paper one of such tasks, modeling of foraging, and it’s solving by creating analogues of social structures of ants and models of feeding behavior are considered. The most important characteristics of ants’ colonies for modeling were defined – individuals number in society and it’s structure, workers’ speed, a communication distance and working area size. Besides, existing experimental basis (a group of robots and a polygon) was estimated for a usage as a hardware platform for experiments. Several models of feeding behavior were considered: a model without foragers’ functions differentiation and a model with differentiation on active and passive ones. Active foragers look for resources by themselves, then they involve passive foragers; passive foragers are settled on a base, while are not involved in harvesting. A set of finite state machines describe the behavior of agents: basic automatons (provide basic behavior functions) and a meta- automaton, that switches with some conditions an execution of basic automatons. Basic movements were tested on experimental basis. A complex test of models were conducted in a simulation program Kvorum. An analogue of real polygon was made in the program. Modeling consists of series of experiments for every model in which agents must harvest resources. Series differ from each other by number of agents. For models’ quality estimation a ratio of received energy to average obtaining time. Experiments settle that model with functions differentiation works more effective.

scholarly journals Revisiting Parameters of Bioinspired Behavior Models in Group Foraging Modeling

2020 ◽  
Vol 19 (1) ◽  
pp. 79-103 ◽  
Author(s):  
Alexander Malyshev ◽  
Evgenii Burgov
Keyword(s):  
Feeding Behavior ◽  
Experimental Basis ◽  
Group Foraging ◽  
Quality Estimation ◽  
Finite State ◽  
Complex Test ◽  
Series Of Experiments ◽  
Basic Behavior ◽  
Behavior Models ◽  
Made In

Using bioinspired models and methods is one of approaches for solving tasks of swarm robotics. In this paper one of such tasks, modeling of foraging, and it’s solving by creating analogues of social structures of ants and models of feeding behavior are considered. The most important characteristics of ants’ colonies for modeling were defined – individuals number in society and it’s structure, workers’ speed, a communication distance and working area size. Besides, existing experimental basis (a group of robots and a polygon) was estimated for a usage as a hardware platform for experiments. Several models of feeding behavior were considered: a model without foragers’ functions differentiation and a model with differentiation on active and passive ones. Active foragers look for resources by themselves, then they involve passive foragers; passive foragers are settled on a base, while are not involved in harvesting. A set of finite state machines describe the behavior of agents: basic automatons (provide basic behavior functions) and a meta- automaton, that switches with some conditions an execution of basic automatons. Basic movements were tested on experimental basis. A complex test of models were conducted in a simulation program Kvorum. An analogue of real polygon was made in the program. Modeling consists of series of experiments for every model in which agents must harvest resources. Series differ from each other by number of agents. For models’ quality estimation a ratio of received energy to average obtaining time. Experiments settle that model with functions differentiation works more effective.

The melanocortin system

2003 ◽  
Vol 284 (3) ◽  
pp. E468-E474 ◽  
Author(s):  
Ira Gantz ◽  
Tung M. Fong
Keyword(s):  
Sexual Function ◽  
Energy Homeostasis ◽  
Melanocortin Receptors ◽  
Experimental Basis ◽  
Melanocortin System ◽  
Genetic Studies ◽  
Melanocortin Peptides ◽  
Selective Agonists ◽  
Made In

The melanocortin system consists of melanocortin peptides derived from the proopiomelanocortin gene, five melanocortin receptors, two endogenous antagonists, and two ancillary proteins. This review provides an abbreviated account of the basic biochemistry, pharmacology, and physiology of the melanocortin system and highlights progress made in four areas. In particular, recent pharmacological and genetic studies have affirmed the role of melanocortins in pigmentation, inflammation, energy homeostasis, and sexual function. Development of selective agonists and antagonists is expected to further facilitate the investigation of these complex physiological functions and provide an experimental basis for new pharmacotherapies.

scholarly journals II. On some phenomena exhibited by gun-cotton and gunpowder under special conditions of exposure to heat

1864 ◽  
Vol 13 ◽  
pp. 204-217
Keyword(s):  
Rapid Method ◽  
High Temperatures ◽  
Royal Society ◽  
Sufficient Accuracy ◽  
Hot Wire ◽  
Full Extent ◽  
Mechanical Condition ◽  
Series Of Experiments ◽  
The Wire ◽  
Made In

The experiments upon which I have been engaged for some time past, in connexion with the manufacture and properties of gun-cotton, have brought under my notice some interesting points in the behaviour of both gun. cotton and gunpowder, when exposed to high temperatures, under parti­cular conditions. I believe that these phenomena have not been previously observed, at any rate to their full extent, and I therefore venture to lay before the Royal Society a brief account of them. Being anxious to possess some rapid method of testing the uniformity of products obtained by carrying out General von Lenk’s system of manu­facture of gun-cotton, I instituted experiments for the purpose of ascer­taining whether, by igniting equal weights of gun-cotton of the same com­position, by voltaic agency, within a partially exhausted vessel connected with a barometric tube, I could rely upon obtaining a uniform depression of the mercurial column, in different experiments made in atmospheres of uniform rarefaction, and whether slight differences in the composition of the gun-cotton would be indicated, with sufficient accuracy, by a corre­sponding difference in the volume of gas disengaged, or in the depression of the mercury. I found that, provided the mechanical condition of the gun-cotton, and its position with reference to the source of heat, were in all instances the same, the indications furnished by these experiments were sufficiently accurate for practical purposes. Each experiment was made with fifteen grains of gun-cotton, which were wrapped compactly round the platinum wire; the apparatus was exhausted until the column of mercury was raised to a height varying from 29 inches to 29·5 inches. The flash which accompanied the deflagration of the gun-cotton was apparently similar to that observed upon its ignition in open air ; but it was noticed that an interval of time always occurred between the first application of heat (or incandescence of the wire) and the flashing of the gun-cotton, and that during this interval there was a very perceptible fall of the column of mercury. On several occasions, when the gun-cotton, in the form of “roving,” or loosely twisted strand, was only laid over the wire, so that it hung down on either side, the red-hot wire simply cut it into two pieces, which fell to the bottom of the exhausted vessel, without continuing to burn. As these results appeared to indicate that the effects of heat upon gun-cotton, in a highly rarefied atmosphere, differed importantly from those observed under ordinary circumstances, or in a very imperfect va­cuum, a series of experiments, under variously modified conditions, was instituted, of which the following are the most important.

scholarly journals I. Experiments on the discharge of Leyden jars

1892 ◽  
Vol 50 (302-307) ◽  
pp. 2-39 ◽  
Keyword(s):  
Alternative Path ◽  
Series Of Experiments ◽  
Made In

The following experiments among others were made in the course of 1888, beginning in February of that year. A brief account of the early experiments, with some of the deductions from them, was given in a couple of lectures to the Society of Arts in March, 1888, on Lightning Conductors; and in the ‘ Electrician,’ vols. 21, 22, 23, under the same title, a number of others were published at length, viz., the series of experiments relating to "the alternative path."

The Mexican Government and the Mission Indians of Upper California, 1821–1835

1965 ◽  
Vol 21 (04) ◽  
pp. 335-362
Author(s):  
C. Alan Hutchinson
Keyword(s):  
California Indians ◽  
Las Casas ◽  
Bartolome De Las Casas ◽  
Mexican Government ◽  
Series Of Experiments ◽  
The Government ◽  
New Nation ◽  
White Settlers ◽  
California Mission ◽  
Made In

The Newly independent government of Mexico became concerned in 1821 about the lack of progress made by the Franciscans in preparing the California mission Indians to take their place in the new nation. The government feared that Upper California might well be lost to the encroachments of the Russians or the Americans if it were not settled by a thriving community of Mexican citizens able to exploit its great natural resources. Influenced by the new egalitarian and humanitarian concepts of the day, the authorities felt that the mission Indians were more like serfs than citizens. Unimpressed by the arguments of the experienced Franciscan Fathers that the Indians would either revert to their wild life in the hills or be enslaved by the white settlers if they were prematurely released from the missions, the government decided to instigate a series of experiments, reminiscent of those made in the days of Father Bartolomé de las Casas, to see what actually would happen. A program was begun involving extensive research in the culture and civilization of the California Indians.

scholarly journals Feeding behavior of the cirratulid Cirriformia filigera (Delle Chiaje, 1825) (Annelida: Polychaeta)

2004 ◽  
Vol 64 (2) ◽  
pp. 283-288 ◽  
Author(s):  
E. V. Pardo ◽  
A. C. Z. Amaral
Keyword(s):  
Feeding Behavior ◽  
Substrate Surface ◽  
Fine Sand ◽  
Middle Part ◽  
Sediment Surface ◽  
Ventral Region ◽  
Overlying Water ◽  
Shaped Tube ◽  
Food Particles ◽  
Made In

Observations of the feeding behavior of Cirriformia filigera (Delle Chiaje, 1825) (Annelida: Polychaeta) from the intertidal zone of São Francisco and Engenho D'água beaches (São Sebastião, State of São Paulo) were made in the laboratory. This species, like other cirratulids, is a deposit feeder, feeding mainly on sediment surface with the aid of its grooved and ciliated palps, which are used to capture food particles. The worm lies just beneath the substrate surface in a J-shaped tube. When feeding, it extends up to 4 palps over the sediment surface, capturing food particles which pass down the groove of each palp directly to the mouth. Only fine sand grains are ingested. The worm frequently extends 4 branchial filaments into the overlying water for aeration. When it moves with the prostomium sideways, it collects and transports sand grains that pass backwards along its ventral region until reaching the middle part of its body. Next, the parapodia and palps move the sand grains to the dorsal posterior end of the animal, covering this area with sand. Some sand grains are also ingested as the worm moves.

scholarly journals III. A description of an extensive series of the water battery; with an account of some experiments made in order to test the relation of the electrical and the chemical actions which take place before and after completion of the voltaic circuit

1844 ◽  
Vol 134 ◽  
pp. 39-52
Keyword(s):  
Royal Society ◽  
Point Of View ◽  
Before And After ◽  
Series Of Experiments ◽  
Negative Facts ◽  
Made In

1. In a paper, which I communicated to the Royal Society in 1839, and which was honoured by insertion in the Transactions of the following year, I described a series of experiments made with some powerful voltaic batteries, for the purpose of determining the possibility of obtaining a spark before the completion of the voltaic circuit. I was therein enabled to establish a few facts respecting polar tension, or rather respecting the absence of any notable degree of it in the batteries I described; for instance, I proved that, with 320 series of Professor Daniell’s constant battery, polar tension was not evinced adequate to the striking distance of 1/5000 th of an inch; nor was I more successful in obtaining it with a water battery of 1024 series, constructed by the same gentleman. I also stated that, according to the present theoretical views of the action of the voltaic battery, with the apparatus I then used, it ought to have taken place; and that, if by a still more powerful apparatus it could not be obtained, the theory must, in some way or other, be incorrect. 2. The preceding negative facts are not without their value in a scientific point of view; they show us, at least, a certain limit within which the anticipated effects could not be obtained. At the same time I could not fail to admit that they were anything but conclusive, as to the actual question of the possibility of obtaining the spark before the circuit was completed. That I am justified in calling the spark, under such circumstances, an anticipated effect, may be fairly assumed, because every electrician is aware that the terminals of a voltaic series invariably evince a certain amount of tension and as spark is but a consequence of tension exalted to a maximum, it is only fair to anticipate that, by increasing the tension, it would be obtained.

scholarly journals A Modeling and Experiment Framework for the Emergency Management in AHC Transmission

2014 ◽  
Vol 2014 ◽  
pp. 1-18 ◽  
Author(s):  
Bin Chen ◽  
Yuanzheng Ge ◽  
Laobing Zhang ◽  
Yongzheng Zhang ◽  
Ziming Zhong ◽  
...  
Keyword(s):  
Emergency Management ◽  
Real World ◽  
Agent Model ◽  
The Real ◽  
Management Intervention ◽  
Artificial Society ◽  
Environment Model ◽  
Intervention Measures ◽  
Finite State ◽  
Series Of Experiments

Emergency management is crucial to finding effective ways to minimize or even eliminate the damage of emergent events, but there still exists no quantified method to study the events by computation. Statistical algorithms, such as susceptible-infected-recovered (SIR) models on epidemic transmission, ignore many details, thus always influencing the spread of emergent events. In this paper, we first propose an agent-based modeling and experiment framework to model the real world with the emergent events. The model of the real world is called artificial society, which is composed of agent model, agent activity model, and environment model, and it employs finite state automata (FSA) as its modeling paradigm. An artificial campus, on which a series of experiments are done to analyze the key factors of the acute hemorrhagic conjunctivitis (AHC) transmission, is then constructed to illustrate how our method works on the emergency management. Intervention measures and optional configurations (such as the isolation period) of them for the emergency management are also given through the evaluations in these experiments.

scholarly journals Weeds and endangered herbs have unforeseen dispersal helpers in the agri-environment: gastropods and earthworms

2013 ◽  
Vol 28 (4) ◽  
pp. 380-383 ◽  
Author(s):  
Manfred Türke ◽  
Tamara Blattmann ◽  
Eva Knop ◽  
Anne Kindermann ◽  
Julia Prestele ◽  
...  
Keyword(s):  
Feeding Behavior ◽  
Organic Farming ◽  
Significant Role ◽  
Ecosystem Functioning ◽  
The Philippines ◽  
Wild Plants ◽  
Irrigated Rice ◽  
Crop Fields ◽  
Series Of Experiments

AbstractAgri-environmental schemes involving organic farming or set-aside management aim at promoting biodiversity and restoring ecosystem functioning in agrarian landscapes. Application of pesticides in these crop fields is strongly regulated facilitating the spread of weeds but also allowing for the establishment of endangered herbs and a variety of animals. Recent studies found gastropods and earthworms to be legitimate dispersers of seeds of wild plants. We assumed that both groups also play a significant role in the spread and establishment of wild plants within crop fields. Therefore, we are conducting a series of experiments in three different study systems on (1) the role of earthworms and gastropods as dispersers of rare herbs and weeds in an organic rye field in Germany, (2) the seed feeding behavior of gastropods of plants sown in fallow ground in Switzerland, and (3) weed dispersal in irrigated rice fields by golden apple snails in the Philippines.

scholarly journals Identifikasi Siklamat Pada Kuah Dadar Gulung Yang Dijual Di Kawasan Pelabuhan Rambang Kota Palangka Raya

2017 ◽  
Vol 3 (1) ◽  
pp. 37-53
Author(s):  
Nurul Qamariah ◽  
Karmila Karmila
Keyword(s):  
Data Collection ◽  
Experimental Research ◽  
Positive Control ◽  
Laboratory Research ◽  
Artificial Sweetener ◽  
The Third ◽  
Port Area ◽  
Series Of Experiments ◽  
Made In

The purpose of this study was to find out whether the rolled omelet sauce sold in the Rambang Port Area in Palangka Raya City contained artificial sweetener of cyclamate. This research is a type of experimental research by conducting a series of experiments which then obtained data from the results of the laboratory research and analyzed descriptively. The research sample was a rolled omelet sauce sold in the Rambang Port Area in Palangka Raya City. Data collection techniques using saturated sampling is by taking all the population as a sample because the population is relatively small, then the data is made in table form. Sampling was conducted on 19 May 2016 at 14.50 WIB for the first sample, at 15.00 WIB for the second sample and at 15.15 WIB for the third sample. From the identification results of artificial cyclamate sweeteners in roll omelet namely in sample 1, sample 2 and sample 3, after being tested there were no white deposits as happened in the positive control. So it can be concluded that the sample was not detected containing cyclamate.

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